763 files changed, 18586 insertions, 26447 deletions

diff --git a/Documentation/IRQ-affinity.txt b/Documentation/IRQ-affinity.txt
index 938d7dd0549..b4a615b7840 100644
--- a/Documentation/IRQ-affinity.txt
+++ b/Documentation/IRQ-affinity.txt
@@ -1,17 +1,26 @@
+ChangeLog:
+        Started by Ingo Molnar <mingo@redhat.com>
+        Update by Max Krasnyansky <maxk@qualcomm.com>
 
-SMP IRQ affinity, started by Ingo Molnar <mingo@redhat.com>
-
+SMP IRQ affinity
 
 /proc/irq/IRQ#/smp_affinity specifies which target CPUs are permitted
 for a given IRQ source. It's a bitmask of allowed CPUs. It's not allowed
 to turn off all CPUs, and if an IRQ controller does not support IRQ
 affinity then the value will not change from the default 0xffffffff.
 
+/proc/irq/default_smp_affinity specifies default affinity mask that applies
+to all non-active IRQs. Once IRQ is allocated/activated its affinity bitmask
+will be set to the default mask. It can then be changed as described above.
+Default mask is 0xffffffff.
+
 Here is an example of restricting IRQ44 (eth1) to CPU0-3 then restricting
-the IRQ to CPU4-7 (this is an 8-CPU SMP box):
+it to CPU4-7 (this is an 8-CPU SMP box):
 
+[root@moon 44]# cd /proc/irq/44
 [root@moon 44]# cat smp_affinity
 ffffffff
+
 [root@moon 44]# echo 0f > smp_affinity
 [root@moon 44]# cat smp_affinity
 0000000f
@@ -21,17 +30,27 @@ PING hell (195.4.7.3): 56 data bytes
 --- hell ping statistics ---
 6029 packets transmitted, 6027 packets received, 0% packet loss
 round-trip min/avg/max = 0.1/0.1/0.4 ms
-[root@moon 44]# cat /proc/interrupts | grep 44:
- 44:          0       1785       1785       1783       1783          1
-1          0   IO-APIC-level  eth1
+[root@moon 44]# cat /proc/interrupts | grep 'CPU\|44:'
+           CPU0       CPU1       CPU2       CPU3      CPU4       CPU5        CPU6       CPU7
+ 44:       1068       1785       1785       1783         0          0           0         0    IO-APIC-level  eth1
+
+As can be seen from the line above IRQ44 was delivered only to the first four
+processors (0-3).
+Now lets restrict that IRQ to CPU(4-7).
+
 [root@moon 44]# echo f0 > smp_affinity
+[root@moon 44]# cat smp_affinity
+000000f0
 [root@moon 44]# ping -f h
 PING hell (195.4.7.3): 56 data bytes
 ..
 --- hell ping statistics ---
 2779 packets transmitted, 2777 packets received, 0% packet loss
 round-trip min/avg/max = 0.1/0.5/585.4 ms
-[root@moon 44]# cat /proc/interrupts | grep 44:
- 44:       1068       1785       1785       1784       1784       1069       1070       1069   IO-APIC-level  eth1
-[root@moon 44]#
+[root@moon 44]# cat /proc/interrupts |  'CPU\|44:'
+           CPU0       CPU1       CPU2       CPU3      CPU4       CPU5        CPU6       CPU7
+ 44:       1068       1785       1785       1783      1784       1069        1070       1069   IO-APIC-level  eth1
+
+This time around IRQ44 was delivered only to the last four processors.
+i.e counters for the CPU0-3 did not change.
 
diff --git a/Documentation/RCU/NMI-RCU.txt b/Documentation/RCU/NMI-RCU.txt
index c64158ecde4..a6d32e65d22 100644
--- a/Documentation/RCU/NMI-RCU.txt
+++ b/Documentation/RCU/NMI-RCU.txt
@@ -93,6 +93,9 @@ Since NMI handlers disable preemption, synchronize_sched() is guaranteed
 not to return until all ongoing NMI handlers exit.  It is therefore safe
 to free up the handler's data as soon as synchronize_sched() returns.
 
+Important note: for this to work, the architecture in question must
+invoke irq_enter() and irq_exit() on NMI entry and exit, respectively.
+
 
 Answer to Quick Quiz
 
diff --git a/Documentation/RCU/RTFP.txt b/Documentation/RCU/RTFP.txt
index 39ad8f56783..9f711d2df91 100644
--- a/Documentation/RCU/RTFP.txt
+++ b/Documentation/RCU/RTFP.txt
@@ -52,6 +52,10 @@ of each iteration.  Unfortunately, chaotic relaxation requires highly
 structured data, such as the matrices used in scientific programs, and
 is thus inapplicable to most data structures in operating-system kernels.
 
+In 1992, Henry (now Alexia) Massalin completed a dissertation advising
+parallel programmers to defer processing when feasible to simplify
+synchronization.  RCU makes extremely heavy use of this advice.
+
 In 1993, Jacobson [Jacobson93] verbally described what is perhaps the
 simplest deferred-free technique: simply waiting a fixed amount of time
 before freeing blocks awaiting deferred free.  Jacobson did not describe
@@ -138,6 +142,13 @@ blocking in read-side critical sections appeared [PaulEMcKenney2006c],
 Robert Olsson described an RCU-protected trie-hash combination
 [RobertOlsson2006a].
 
+2007 saw the journal version of the award-winning RCU paper from 2006
+[ThomasEHart2007a], as well as a paper demonstrating use of Promela
+and Spin to mechanically verify an optimization to Oleg Nesterov's
+QRCU [PaulEMcKenney2007QRCUspin], a design document describing
+preemptible RCU [PaulEMcKenney2007PreemptibleRCU], and the three-part
+LWN "What is RCU?" series [PaulEMcKenney2007WhatIsRCUFundamentally,
+PaulEMcKenney2008WhatIsRCUUsage, and PaulEMcKenney2008WhatIsRCUAPI].
 
 Bibtex Entries
 
@@ -202,6 +213,20 @@ Bibtex Entries
 ,Year="1991"
 }
 
+@phdthesis{HMassalinPhD
+,author="H. Massalin"
+,title="Synthesis: An Efficient Implementation of Fundamental Operating
+System Services"
+,school="Columbia University"
+,address="New York, NY"
+,year="1992"
+,annotation="
+        Mondo optimizing compiler.
+        Wait-free stuff.
+        Good advice: defer work to avoid synchronization.
+"
+}
+
 @unpublished{Jacobson93
 ,author="Van Jacobson"
 ,title="Avoid Read-Side Locking Via Delayed Free"
@@ -635,3 +660,86 @@ Revised:
 "
 }
 
+@unpublished{PaulEMcKenney2007PreemptibleRCU
+,Author="Paul E. McKenney"
+,Title="The design of preemptible read-copy-update"
+,month="October"
+,day="8"
+,year="2007"
+,note="Available:
+\url{http://lwn.net/Articles/253651/}
+[Viewed October 25, 2007]"
+,annotation="
+        LWN article describing the design of preemptible RCU.
+"
+}
+
+########################################################################
+#
+#       "What is RCU?" LWN series.
+#
+
+@unpublished{PaulEMcKenney2007WhatIsRCUFundamentally
+,Author="Paul E. McKenney and Jonathan Walpole"
+,Title="What is {RCU}, Fundamentally?"
+,month="December"
+,day="17"
+,year="2007"
+,note="Available:
+\url{http://lwn.net/Articles/262464/}
+[Viewed December 27, 2007]"
+,annotation="
+        Lays out the three basic components of RCU: (1) publish-subscribe,
+        (2) wait for pre-existing readers to complete, and (2) maintain
+        multiple versions.
+"
+}
+
+@unpublished{PaulEMcKenney2008WhatIsRCUUsage
+,Author="Paul E. McKenney"
+,Title="What is {RCU}? Part 2: Usage"
+,month="January"
+,day="4"
+,year="2008"
+,note="Available:
+\url{http://lwn.net/Articles/263130/}
+[Viewed January 4, 2008]"
+,annotation="
+        Lays out six uses of RCU:
+        1. RCU is a Reader-Writer Lock Replacement
+        2. RCU is a Restricted Reference-Counting Mechanism
+        3. RCU is a Bulk Reference-Counting Mechanism
+        4. RCU is a Poor Man's Garbage Collector
+        5. RCU is a Way of Providing Existence Guarantees
+        6. RCU is a Way of Waiting for Things to Finish 
+"
+}
+
+@unpublished{PaulEMcKenney2008WhatIsRCUAPI
+,Author="Paul E. McKenney"
+,Title="{RCU} part 3: the {RCU} {API}"
+,month="January"
+,day="17"
+,year="2008"
+,note="Available:
+\url{http://lwn.net/Articles/264090/}
+[Viewed January 10, 2008]"
+,annotation="
+        Gives an overview of the Linux-kernel RCU API and a brief annotated RCU
+        bibliography.
+"
+}
+
+@article{DinakarGuniguntala2008IBMSysJ
+,author="D. Guniguntala and P. E. McKenney and J. Triplett and J. Walpole"
+,title="The read-copy-update mechanism for supporting real-time applications on shared-memory multiprocessor systems with {Linux}"
+,Year="2008"
+,Month="April"
+,journal="IBM Systems Journal"
+,volume="47"
+,number="2"
+,pages="@@-@@"
+,annotation="
+        RCU, realtime RCU, sleepable RCU, performance.
+"
+}
diff --git a/Documentation/RCU/checklist.txt b/Documentation/RCU/checklist.txt
index 42b01bc2e1b..cf5562cbe35 100644
--- a/Documentation/RCU/checklist.txt
+++ b/Documentation/RCU/checklist.txt
@@ -13,10 +13,13 @@ over a rather long period of time, but improvements are always welcome!
         detailed performance measurements show that RCU is nonetheless
         the right tool for the job.
 
-        The other exception would be where performance is not an issue,
-        and RCU provides a simpler implementation.  An example of this
-        situation is the dynamic NMI code in the Linux 2.6 kernel,
-        at least on architectures where NMIs are rare.
+        Another exception is where performance is not an issue, and RCU
+        provides a simpler implementation.  An example of this situation
+        is the dynamic NMI code in the Linux 2.6 kernel, at least on
+        architectures where NMIs are rare.
+
+        Yet another exception is where the low real-time latency of RCU's
+        read-side primitives is critically important.
 
 1.      Does the update code have proper mutual exclusion?
 
@@ -39,9 +42,10 @@ over a rather long period of time, but improvements are always welcome!
 
 2.      Do the RCU read-side critical sections make proper use of
         rcu_read_lock() and friends?  These primitives are needed
-        to suppress preemption (or bottom halves, in the case of
-        rcu_read_lock_bh()) in the read-side critical sections,
-        and are also an excellent aid to readability.
+        to prevent grace periods from ending prematurely, which
+        could result in data being unceremoniously freed out from
+        under your read-side code, which can greatly increase the
+        actuarial risk of your kernel.
 
         As a rough rule of thumb, any dereference of an RCU-protected
         pointer must be covered by rcu_read_lock() or rcu_read_lock_bh()
@@ -54,15 +58,30 @@ over a rather long period of time, but improvements are always welcome!
         be running while updates are in progress.  There are a number
         of ways to handle this concurrency, depending on the situation:
 
-        a.      Make updates appear atomic to readers.  For example,
+        a.      Use the RCU variants of the list and hlist update
+                primitives to add, remove, and replace elements on an
+                RCU-protected list.  Alternatively, use the RCU-protected
+                trees that have been added to the Linux kernel.
+
+                This is almost always the best approach.
+
+        b.      Proceed as in (a) above, but also maintain per-element
+                locks (that are acquired by both readers and writers)
+                that guard per-element state.  Of course, fields that
+                the readers refrain from accessing can be guarded by the
+                update-side lock.
+
+                This works quite well, also.
+
+        c.      Make updates appear atomic to readers.  For example,
                 pointer updates to properly aligned fields will appear
                 atomic, as will individual atomic primitives.  Operations
                 performed under a lock and sequences of multiple atomic
                 primitives will -not- appear to be atomic.
 
-                This is almost always the best approach.
+                This can work, but is starting to get a bit tricky.
 
-        b.      Carefully order the updates and the reads so that
+        d.      Carefully order the updates and the reads so that
                 readers see valid data at all phases of the update.
                 This is often more difficult than it sounds, especially
                 given modern CPUs' tendency to reorder memory references.
@@ -123,18 +142,22 @@ over a rather long period of time, but improvements are always welcome!
                 when publicizing a pointer to a structure that can
                 be traversed by an RCU read-side critical section.
 
-5.      If call_rcu(), or a related primitive such as call_rcu_bh(),
-        is used, the callback function must be written to be called
-        from softirq context.  In particular, it cannot block.
+5.      If call_rcu(), or a related primitive such as call_rcu_bh() or
+        call_rcu_sched(), is used, the callback function must be
+        written to be called from softirq context.  In particular,
+        it cannot block.
 
 6.      Since synchronize_rcu() can block, it cannot be called from
-        any sort of irq context.
+        any sort of irq context.  Ditto for synchronize_sched() and
+        synchronize_srcu().
 
 7.      If the updater uses call_rcu(), then the corresponding readers
         must use rcu_read_lock() and rcu_read_unlock().  If the updater
         uses call_rcu_bh(), then the corresponding readers must use
-        rcu_read_lock_bh() and rcu_read_unlock_bh().  Mixing things up
-        will result in confusion and broken kernels.
+        rcu_read_lock_bh() and rcu_read_unlock_bh().  If the updater
+        uses call_rcu_sched(), then the corresponding readers must
+        disable preemption.  Mixing things up will result in confusion
+        and broken kernels.
 
         One exception to this rule: rcu_read_lock() and rcu_read_unlock()
         may be substituted for rcu_read_lock_bh() and rcu_read_unlock_bh()
@@ -143,9 +166,9 @@ over a rather long period of time, but improvements are always welcome!
         such cases is a must, of course!  And the jury is still out on
         whether the increased speed is worth it.
 
-8.      Although synchronize_rcu() is a bit slower than is call_rcu(),
-        it usually results in simpler code.  So, unless update
-        performance is critically important or the updaters cannot block,
+8.      Although synchronize_rcu() is slower than is call_rcu(), it
+        usually results in simpler code.  So, unless update performance
+        is critically important or the updaters cannot block,
         synchronize_rcu() should be used in preference to call_rcu().
 
         An especially important property of the synchronize_rcu()
@@ -187,23 +210,23 @@ over a rather long period of time, but improvements are always welcome!
                 number of updates per grace period.
 
 9.      All RCU list-traversal primitives, which include
-        list_for_each_rcu(), list_for_each_entry_rcu(),
+        rcu_dereference(), list_for_each_rcu(), list_for_each_entry_rcu(),
         list_for_each_continue_rcu(), and list_for_each_safe_rcu(),
-        must be within an RCU read-side critical section.  RCU
+        must be either within an RCU read-side critical section or
+        must be protected by appropriate update-side locks.  RCU
         read-side critical sections are delimited by rcu_read_lock()
         and rcu_read_unlock(), or by similar primitives such as
         rcu_read_lock_bh() and rcu_read_unlock_bh().
 
-        Use of the _rcu() list-traversal primitives outside of an
-        RCU read-side critical section causes no harm other than
-        a slight performance degradation on Alpha CPUs.  It can
-        also be quite helpful in reducing code bloat when common
-        code is shared between readers and updaters.
+        The reason that it is permissible to use RCU list-traversal
+        primitives when the update-side lock is held is that doing so
+        can be quite helpful in reducing code bloat when common code is
+        shared between readers and updaters.
 
 10.     Conversely, if you are in an RCU read-side critical section,
-        you -must- use the "_rcu()" variants of the list macros.
-        Failing to do so will break Alpha and confuse people reading
-        your code.
+        and you don't hold the appropriate update-side lock, you -must-
+        use the "_rcu()" variants of the list macros.  Failing to do so
+        will break Alpha and confuse people reading your code.
 
 11.     Note that synchronize_rcu() -only- guarantees to wait until
         all currently executing rcu_read_lock()-protected RCU read-side
@@ -230,6 +253,14 @@ over a rather long period of time, but improvements are always welcome!
         must use whatever locking or other synchronization is required
         to safely access and/or modify that data structure.
 
+        RCU callbacks are -usually- executed on the same CPU that executed
+        the corresponding call_rcu(), call_rcu_bh(), or call_rcu_sched(),
+        but are by -no- means guaranteed to be.  For example, if a given
+        CPU goes offline while having an RCU callback pending, then that
+        RCU callback will execute on some surviving CPU.  (If this was
+        not the case, a self-spawning RCU callback would prevent the
+        victim CPU from ever going offline.)
+
 14.     SRCU (srcu_read_lock(), srcu_read_unlock(), and synchronize_srcu())
         may only be invoked from process context.  Unlike other forms of
         RCU, it -is- permissible to block in an SRCU read-side critical
diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
index 2967a65269d..a342b6e1cc1 100644
--- a/Documentation/RCU/torture.txt
+++ b/Documentation/RCU/torture.txt
@@ -10,23 +10,30 @@ status messages via printk(), which can be examined via the dmesg
 command (perhaps grepping for "torture").  The test is started
 when the module is loaded, and stops when the module is unloaded.
 
-However, actually setting this config option to "y" results in the system
-running the test immediately upon boot, and ending only when the system
-is taken down.  Normally, one will instead want to build the system
-with CONFIG_RCU_TORTURE_TEST=m and to use modprobe and rmmod to control
-the test, perhaps using a script similar to the one shown at the end of
-this document.  Note that you will need CONFIG_MODULE_UNLOAD in order
-to be able to end the test.
+CONFIG_RCU_TORTURE_TEST_RUNNABLE
+
+It is also possible to specify CONFIG_RCU_TORTURE_TEST=y, which will
+result in the tests being loaded into the base kernel.  In this case,
+the CONFIG_RCU_TORTURE_TEST_RUNNABLE config option is used to specify
+whether the RCU torture tests are to be started immediately during
+boot or whether the /proc/sys/kernel/rcutorture_runnable file is used
+to enable them.  This /proc file can be used to repeatedly pause and
+restart the tests, regardless of the initial state specified by the
+CONFIG_RCU_TORTURE_TEST_RUNNABLE config option.
+
+You will normally -not- want to start the RCU torture tests during boot
+(and thus the default is CONFIG_RCU_TORTURE_TEST_RUNNABLE=n), but doing
+this can sometimes be useful in finding boot-time bugs.
 
 
 MODULE PARAMETERS
 
 This module has the following parameters:
 
-nreaders        This is the number of RCU reading threads supported.
-                The default is twice the number of CPUs.  Why twice?
-                To properly exercise RCU implementations with preemptible
-                read-side critical sections.
+irqreaders      Says to invoke RCU readers from irq level.  This is currently
+                done via timers.  Defaults to "1" for variants of RCU that
+                permit this.  (Or, more accurately, variants of RCU that do
+                -not- permit this know to ignore this variable.)
 
 nfakewriters    This is the number of RCU fake writer threads to run.  Fake
                 writer threads repeatedly use the synchronous "wait for
@@ -37,6 +44,16 @@ nfakewriters	This is the number of RCU fake writer threads to run.  Fake
                 to trigger special cases caused by multiple writers, such as
                 the synchronize_srcu() early return optimization.
 
+nreaders        This is the number of RCU reading threads supported.
+                The default is twice the number of CPUs.  Why twice?
+                To properly exercise RCU implementations with preemptible
+                read-side critical sections.
+
+shuffle_interval
+                The number of seconds to keep the test threads affinitied
+                to a particular subset of the CPUs, defaults to 3 seconds.
+                Used in conjunction with test_no_idle_hz.
+
 stat_interval   The number of seconds between output of torture
                 statistics (via printk()).  Regardless of the interval,
                 statistics are printed when the module is unloaded.
@@ -44,10 +61,11 @@ stat_interval	The number of seconds between output of torture
                 be printed -only- when the module is unloaded, and this
                 is the default.
 
-shuffle_interval
-                The number of seconds to keep the test threads affinitied
-                to a particular subset of the CPUs, defaults to 5 seconds.
-                Used in conjunction with test_no_idle_hz.
+stutter         The length of time to run the test before pausing for this
+                same period of time.  Defaults to "stutter=5", so as
+                to run and pause for (roughly) five-second intervals.
+                Specifying "stutter=0" causes the test to run continuously
+                without pausing, which is the old default behavior.
 
 test_no_idle_hz Whether or not to test the ability of RCU to operate in
                 a kernel that disables the scheduling-clock interrupt to
diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.txt
index e0d6d99b8f9..e04d643a9f5 100644
--- a/Documentation/RCU/whatisRCU.txt
+++ b/Documentation/RCU/whatisRCU.txt
@@ -1,3 +1,11 @@
+Please note that the "What is RCU?" LWN series is an excellent place
+to start learning about RCU:
+
+1.      What is RCU, Fundamentally?  http://lwn.net/Articles/262464/
+2.      What is RCU? Part 2: Usage   http://lwn.net/Articles/263130/
+3.      RCU part 3: the RCU API      http://lwn.net/Articles/264090/
+
+
 What is RCU?
 
 RCU is a synchronization mechanism that was added to the Linux kernel
@@ -772,26 +780,18 @@ Linux-kernel source code, but it helps to have a full list of the
 APIs, since there does not appear to be a way to categorize them
 in docbook.  Here is the list, by category.
 
-Markers for RCU read-side critical sections:
-
-        rcu_read_lock
-        rcu_read_unlock
-        rcu_read_lock_bh
-        rcu_read_unlock_bh
-        srcu_read_lock
-        srcu_read_unlock
-
 RCU pointer/list traversal:
 
         rcu_dereference
+        list_for_each_entry_rcu
+        hlist_for_each_entry_rcu
+
         list_for_each_rcu               (to be deprecated in favor of
                                          list_for_each_entry_rcu)
-        list_for_each_entry_rcu
         list_for_each_continue_rcu      (to be deprecated in favor of new
                                          list_for_each_entry_continue_rcu)
-        hlist_for_each_entry_rcu
 
-RCU pointer update:
+RCU pointer/list update:
 
         rcu_assign_pointer
         list_add_rcu
@@ -799,16 +799,36 @@ RCU pointer update:
         list_del_rcu
         list_replace_rcu
         hlist_del_rcu
+        hlist_add_after_rcu
+        hlist_add_before_rcu
         hlist_add_head_rcu
+        hlist_replace_rcu
+        list_splice_init_rcu()
 
-RCU grace period:
+RCU:    Critical sections       Grace period            Barrier
+
+        rcu_read_lock           synchronize_net         rcu_barrier
+        rcu_read_unlock         synchronize_rcu
+                                call_rcu
+
+
+bh:     Critical sections       Grace period            Barrier
+
+        rcu_read_lock_bh        call_rcu_bh             rcu_barrier_bh
+        rcu_read_unlock_bh
+
+
+sched:  Critical sections       Grace period            Barrier
+
+        [preempt_disable]       synchronize_sched       rcu_barrier_sched
+        [and friends]           call_rcu_sched
+
+
+SRCU:   Critical sections       Grace period            Barrier
+
+        srcu_read_lock          synchronize_srcu        N/A
+        srcu_read_unlock
 
-        synchronize_net
-        synchronize_sched
-        synchronize_rcu
-        synchronize_srcu
-        call_rcu
-        call_rcu_bh
 
 See the comment headers in the source code (or the docbook generated
 from them) for more information.
diff --git a/Documentation/cputopology.txt b/Documentation/cputopology.txt
index b61cb956402..bd699da2466 100644
--- a/Documentation/cputopology.txt
+++ b/Documentation/cputopology.txt
@@ -14,9 +14,8 @@ represent the thread siblings to cpu X in the same physical package;
 To implement it in an architecture-neutral way, a new source file,
 drivers/base/topology.c, is to export the 4 attributes.
 
-If one architecture wants to support this feature, it just needs to
-implement 4 defines, typically in file include/asm-XXX/topology.h.
-The 4 defines are:
+For an architecture to support this feature, it must define some of
+these macros in include/asm-XXX/topology.h:
 #define topology_physical_package_id(cpu)
 #define topology_core_id(cpu)
 #define topology_thread_siblings(cpu)
@@ -25,17 +24,10 @@ The 4 defines are:
 The type of **_id is int.
 The type of siblings is cpumask_t.
 
-To be consistent on all architectures, the 4 attributes should have
-default values if their values are unavailable. Below is the rule.
-1) physical_package_id: If cpu has no physical package id, -1 is the
-default value.
-2) core_id: If cpu doesn't support multi-core, its core id is 0.
-3) thread_siblings: Just include itself, if the cpu doesn't support
-HT/multi-thread.
-4) core_siblings: Just include itself, if the cpu doesn't support
-multi-core and HT/Multi-thread.
-
-So be careful when declaring the 4 defines in include/asm-XXX/topology.h.
-
-If an attribute isn't defined on an architecture, it won't be exported.
-
+To be consistent on all architectures, include/linux/topology.h
+provides default definitions for any of the above macros that are
+not defined by include/asm-XXX/topology.h:
+1) physical_package_id: -1
+2) core_id: 0
+3) thread_siblings: just the given CPU
+4) core_siblings: just the given CPU
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 46ece3fba6f..65a1482457a 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -222,13 +222,6 @@ Who:	Thomas Gleixner <tglx@linutronix.de>
 
 ---------------------------
 
-What:   i2c-i810, i2c-prosavage and i2c-savage4
-When:   May 2008
-Why:    These drivers are superseded by i810fb, intelfb and savagefb.
-Who:    Jean Delvare <khali@linux-fr.org>
-
----------------------------
-
 What (Why):
         - include/linux/netfilter_ipv4/ipt_TOS.h ipt_tos.h header files
           (superseded by xt_TOS/xt_tos target & match)
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index 0c5086db835..80e193d82e2 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -13,72 +13,93 @@ Mailing list: linux-ext4@vger.kernel.org
 1. Quick usage instructions:
 ===========================
 
-  - Grab updated e2fsprogs from
-    ftp://ftp.kernel.org/pub/linux/kernel/people/tytso/e2fsprogs-interim/
-    This is a patchset on top of e2fsprogs-1.39, which can be found at
+  - Compile and install the latest version of e2fsprogs (as of this
+    writing version 1.41) from:
+
+    http://sourceforge.net/project/showfiles.php?group_id=2406
+        
+        or
+
     ftp://ftp.kernel.org/pub/linux/kernel/people/tytso/e2fsprogs/
 
-  - It's still mke2fs -j /dev/hda1
+        or grab the latest git repository from:
+
+    git://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
+
+  - Create a new filesystem using the ext4dev filesystem type:
+
+        # mke2fs -t ext4dev /dev/hda1
+
+    Or configure an existing ext3 filesystem to support extents and set
+    the test_fs flag to indicate that it's ok for an in-development
+    filesystem to touch this filesystem:
 
-  - mount /dev/hda1 /wherever -t ext4dev
+        # tune2fs -O extents -E test_fs /dev/hda1
 
-  - To enable extents,
+    If the filesystem was created with 128 byte inodes, it can be
+    converted to use 256 byte for greater efficiency via:
 
-        mount /dev/hda1 /wherever -t ext4dev -o extents
+        # tune2fs -I 256 /dev/hda1
 
-  - The filesystem is compatible with the ext3 driver until you add a file
-    which has extents (ie: `mount -o extents', then create a file).
+    (Note: we currently do not have tools to convert an ext4dev
+    filesystem back to ext3; so please do not do try this on production
+    filesystems.)
 
-    NOTE: The "extents" mount flag is temporary.  It will soon go away and
-    extents will be enabled by the "-o extents" flag to mke2fs or tune2fs
+  - Mounting:
+
+        # mount -t ext4dev /dev/hda1 /wherever
 
   - When comparing performance with other filesystems, remember that
-    ext3/4 by default offers higher data integrity guarantees than most.  So
-    when comparing with a metadata-only journalling filesystem, use `mount -o
-    data=writeback'.  And you might as well use `mount -o nobh' too along
-    with it.  Making the journal larger than the mke2fs default often helps
-    performance with metadata-intensive workloads.
+    ext3/4 by default offers higher data integrity guarantees than most.
+    So when comparing with a metadata-only journalling filesystem, such
+    as ext3, use `mount -o data=writeback'.  And you might as well use
+    `mount -o nobh' too along with it.  Making the journal larger than
+    the mke2fs default often helps performance with metadata-intensive
+    workloads.
 
 2. Features
 ===========
 
 2.1 Currently available
 
-* ability to use filesystems > 16TB
+* ability to use filesystems > 16TB (e2fsprogs support not available yet)
 * extent format reduces metadata overhead (RAM, IO for access, transactions)
 * extent format more robust in face of on-disk corruption due to magics,
 * internal redunancy in tree
-
-2.1 Previously available, soon to be enabled by default by "mkefs.ext4":
-
-* dir_index and resize inode will be on by default
-* large inodes will be used by default for fast EAs, nsec timestamps, etc
+* improved file allocation (multi-block alloc)
+* fix 32000 subdirectory limit
+* nsec timestamps for mtime, atime, ctime, create time
+* inode version field on disk (NFSv4, Lustre)
+* reduced e2fsck time via uninit_bg feature
+* journal checksumming for robustness, performance
+* persistent file preallocation (e.g for streaming media, databases)
+* ability to pack bitmaps and inode tables into larger virtual groups via the
+  flex_bg feature
+* large file support
+* Inode allocation using large virtual block groups via flex_bg
+* delayed allocation
+* large block (up to pagesize) support
+* efficent new ordered mode in JBD2 and ext4(avoid using buffer head to force
+  the ordering)
 
 2.2 Candidate features for future inclusion
 
-There are several under discussion, whether they all make it in is
-partly a function of how much time everyone has to work on them:
+* Online defrag (patches available but not well tested)
+* reduced mke2fs time via lazy itable initialization in conjuction with
+  the uninit_bg feature (capability to do this is available in e2fsprogs
+  but a kernel thread to do lazy zeroing of unused inode table blocks
+  after filesystem is first mounted is required for safety)
 
-* improved file allocation (multi-block alloc, delayed alloc; basically done)
-* fix 32000 subdirectory limit (patch exists, needs some e2fsck work)
-* nsec timestamps for mtime, atime, ctime, create time (patch exists,
-  needs some e2fsck work)
-* inode version field on disk (NFSv4, Lustre; prototype exists)
-* reduced mke2fs/e2fsck time via uninitialized groups (prototype exists)
-* journal checksumming for robustness, performance (prototype exists)
-* persistent file preallocation (e.g for streaming media, databases)
+There are several others under discussion, whether they all make it in is
+partly a function of how much time everyone has to work on them. Features like
+metadata checksumming have been discussed and planned for a bit but no patches
+exist yet so I'm not sure they're in the near-term roadmap.
 
-Features like metadata checksumming have been discussed and planned for
-a bit but no patches exist yet so I'm not sure they're in the near-term
-roadmap.
+The big performance win will come with mballoc, delalloc and flex_bg
+grouping of bitmaps and inode tables.  Some test results available here:
 
-The big performance win will come with mballoc and delalloc.  CFS has
-been using mballoc for a few years already with Lustre, and IBM + Bull
-did a lot of benchmarking on it.  The reason it isn't in the first set of
-patches is partly a manageability issue, and partly because it doesn't
-directly affect the on-disk format (outside of much better allocation)
-so it isn't critical to get into the first round of changes.  I believe
-Alex is working on a new set of patches right now.
+ - http://www.bullopensource.org/ext4/20080530/ffsb-write-2.6.26-rc2.html
+ - http://www.bullopensource.org/ext4/20080530/ffsb-readwrite-2.6.26-rc2.html
 
 3. Options
 ==========
@@ -222,9 +243,11 @@ stripe=n		Number of filesystem blocks that mballoc will try
                         to use for allocation size and alignment. For RAID5/6
                         systems this should be the number of data
                         disks *  RAID chunk size in file system blocks.
-
+delalloc        (*)     Deferring block allocation until write-out time.
+nodelalloc              Disable delayed allocation. Blocks are allocation
+                        when data is copied from user to page cache.
 Data Mode
----------
+=========
 There are 3 different data modes:
 
 * writeback mode
@@ -236,10 +259,10 @@ typically provide the best ext4 performance.
 
 * ordered mode
 In data=ordered mode, ext4 only officially journals metadata, but it logically
-groups metadata and data blocks into a single unit called a transaction.  When
-it's time to write the new metadata out to disk, the associated data blocks
-are written first.  In general, this mode performs slightly slower than
-writeback but significantly faster than journal mode.
+groups metadata information related to data changes with the data blocks into a
+single unit called a transaction.  When it's time to write the new metadata
+out to disk, the associated data blocks are written first.  In general,
+this mode performs slightly slower than writeback but significantly faster than journal mode.
 
 * journal mode
 data=journal mode provides full data and metadata journaling.  All new data is
@@ -247,7 +270,8 @@ written to the journal first, and then to its final location.
 In the event of a crash, the journal can be replayed, bringing both data and
 metadata into a consistent state.  This mode is the slowest except when data
 needs to be read from and written to disk at the same time where it
-outperforms all others modes.
+outperforms all others modes.  Curently ext4 does not have delayed
+allocation support if this data journalling mode is selected.
 
 References
 ==========
@@ -256,7 +280,8 @@ kernel source:	<file:fs/ext4/>
                 <file:fs/jbd2/>
 
 programs:       http://e2fsprogs.sourceforge.net/
-                http://ext2resize.sourceforge.net
 
 useful links:   http://fedoraproject.org/wiki/ext3-devel
                 http://www.bullopensource.org/ext4/
+                http://ext4.wiki.kernel.org/index.php/Main_Page
+                http://fedoraproject.org/wiki/Features/Ext4
diff --git a/Documentation/filesystems/gfs2-glocks.txt b/Documentation/filesystems/gfs2-glocks.txt
new file mode 100644
index 00000000000..4dae9a3840b
--- /dev/null
+++ b/Documentation/filesystems/gfs2-glocks.txt
@@ -0,0 +1,114 @@
+                   Glock internal locking rules
+                  ------------------------------
+
+This documents the basic principles of the glock state machine
+internals. Each glock (struct gfs2_glock in fs/gfs2/incore.h)
+has two main (internal) locks:
+
+ 1. A spinlock (gl_spin) which protects the internal state such
+    as gl_state, gl_target and the list of holders (gl_holders)
+ 2. A non-blocking bit lock, GLF_LOCK, which is used to prevent other
+    threads from making calls to the DLM, etc. at the same time. If a
+    thread takes this lock, it must then call run_queue (usually via the
+    workqueue) when it releases it in order to ensure any pending tasks
+    are completed.
+
+The gl_holders list contains all the queued lock requests (not
+just the holders) associated with the glock. If there are any
+held locks, then they will be contiguous entries at the head
+of the list. Locks are granted in strictly the order that they
+are queued, except for those marked LM_FLAG_PRIORITY which are
+used only during recovery, and even then only for journal locks.
+
+There are three lock states that users of the glock layer can request,
+namely shared (SH), deferred (DF) and exclusive (EX). Those translate
+to the following DLM lock modes:
+
+Glock mode    | DLM lock mode
+------------------------------
+    UN        |    IV/NL  Unlocked (no DLM lock associated with glock) or NL
+    SH        |    PR     (Protected read)
+    DF        |    CW     (Concurrent write)
+    EX        |    EX     (Exclusive)
+
+Thus DF is basically a shared mode which is incompatible with the "normal"
+shared lock mode, SH. In GFS2 the DF mode is used exclusively for direct I/O
+operations. The glocks are basically a lock plus some routines which deal
+with cache management. The following rules apply for the cache:
+
+Glock mode   |  Cache data | Cache Metadata | Dirty Data | Dirty Metadata
+--------------------------------------------------------------------------
+    UN       |     No      |       No       |     No     |      No
+    SH       |     Yes     |       Yes      |     No     |      No
+    DF       |     No      |       Yes      |     No     |      No
+    EX       |     Yes     |       Yes      |     Yes    |      Yes
+
+These rules are implemented using the various glock operations which
+are defined for each type of glock. Not all types of glocks use
+all the modes. Only inode glocks use the DF mode for example.
+
+Table of glock operations and per type constants:
+
+Field            | Purpose
+----------------------------------------------------------------------------
+go_xmote_th      | Called before remote state change (e.g. to sync dirty data)
+go_xmote_bh      | Called after remote state change (e.g. to refill cache)
+go_inval         | Called if remote state change requires invalidating the cache
+go_demote_ok     | Returns boolean value of whether its ok to demote a glock
+                 | (e.g. checks timeout, and that there is no cached data)
+go_lock          | Called for the first local holder of a lock
+go_unlock        | Called on the final local unlock of a lock
+go_dump          | Called to print content of object for debugfs file, or on
+                 | error to dump glock to the log.
+go_type;         | The type of the glock, LM_TYPE_.....
+go_min_hold_time | The minimum hold time
+
+The minimum hold time for each lock is the time after a remote lock
+grant for which we ignore remote demote requests. This is in order to
+prevent a situation where locks are being bounced around the cluster
+from node to node with none of the nodes making any progress. This
+tends to show up most with shared mmaped files which are being written
+to by multiple nodes. By delaying the demotion in response to a
+remote callback, that gives the userspace program time to make
+some progress before the pages are unmapped.
+
+There is a plan to try and remove the go_lock and go_unlock callbacks
+if possible, in order to try and speed up the fast path though the locking.
+Also, eventually we hope to make the glock "EX" mode locally shared
+such that any local locking will be done with the i_mutex as required
+rather than via the glock.
+
+Locking rules for glock operations:
+
+Operation     |  GLF_LOCK bit lock held |  gl_spin spinlock held
+-----------------------------------------------------------------
+go_xmote_th   |       Yes               |       No
+go_xmote_bh   |       Yes               |       No
+go_inval      |       Yes               |       No
+go_demote_ok  |       Sometimes         |       Yes
+go_lock       |       Yes               |       No
+go_unlock     |       Yes               |       No
+go_dump       |       Sometimes         |       Yes
+
+N.B. Operations must not drop either the bit lock or the spinlock
+if its held on entry. go_dump and do_demote_ok must never block.
+Note that go_dump will only be called if the glock's state
+indicates that it is caching uptodate data.
+
+Glock locking order within GFS2:
+
+ 1. i_mutex (if required)
+ 2. Rename glock (for rename only)
+ 3. Inode glock(s)
+    (Parents before children, inodes at "same level" with same parent in
+     lock number order)
+ 4. Rgrp glock(s) (for (de)allocation operations)
+ 5. Transaction glock (via gfs2_trans_begin) for non-read operations
+ 6. Page lock  (always last, very important!)
+
+There are two glocks per inode. One deals with access to the inode
+itself (locking order as above), and the other, known as the iopen
+glock is used in conjunction with the i_nlink field in the inode to
+determine the lifetime of the inode in question. Locking of inodes
+is on a per-inode basis. Locking of rgrps is on a per rgrp basis.
+
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index dbc3c6a3650..7f268f327d7 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -380,28 +380,35 @@ i386 and x86_64 platforms support the new IRQ vector displays.
 Of some interest is the introduction of the /proc/irq directory to 2.4.
 It could be used to set IRQ to CPU affinity, this means that you can "hook" an
 IRQ to only one CPU, or to exclude a CPU of handling IRQs. The contents of the
-irq subdir is one subdir for each IRQ, and one file; prof_cpu_mask
+irq subdir is one subdir for each IRQ, and two files; default_smp_affinity and
+prof_cpu_mask.
 
 For example 
   > ls /proc/irq/
   0  10  12  14  16  18  2  4  6  8  prof_cpu_mask
-  1  11  13  15  17  19  3  5  7  9
+  1  11  13  15  17  19  3  5  7  9  default_smp_affinity
   > ls /proc/irq/0/
   smp_affinity
 
-The contents of the prof_cpu_mask file and each smp_affinity file for each IRQ
-is the same by default:
+smp_affinity is a bitmask, in which you can specify which CPUs can handle the
+IRQ, you can set it by doing:
 
-  > cat /proc/irq/0/smp_affinity 
-  ffffffff
+  > echo 1 > /proc/irq/10/smp_affinity
+
+This means that only the first CPU will handle the IRQ, but you can also echo
+5 which means that only the first and fourth CPU can handle the IRQ.
 
-It's a bitmask, in which you can specify which CPUs can handle the IRQ, you can
-set it by doing:
+The contents of each smp_affinity file is the same by default:
+
+  > cat /proc/irq/0/smp_affinity
+  ffffffff
 
-  > echo 1 > /proc/irq/prof_cpu_mask
+The default_smp_affinity mask applies to all non-active IRQs, which are the
+IRQs which have not yet been allocated/activated, and hence which lack a
+/proc/irq/[0-9]* directory.
 
-This means that only the first CPU will handle the IRQ, but you can also echo 5
-which means that only the first and fourth CPU can handle the IRQ.
+prof_cpu_mask specifies which CPUs are to be profiled by the system wide
+profiler. Default value is ffffffff (all cpus).
 
 The way IRQs are routed is handled by the IO-APIC, and it's Round Robin
 between all the CPUs which are allowed to handle it. As usual the kernel has
diff --git a/Documentation/ftrace.txt b/Documentation/ftrace.txt
index 77d3faa1a61..f218f616ff6 100644
--- a/Documentation/ftrace.txt
+++ b/Documentation/ftrace.txt
@@ -4,9 +4,10 @@
 Copyright 2008 Red Hat Inc.
    Author:   Steven Rostedt <srostedt@redhat.com>
   License:   The GNU Free Documentation License, Version 1.2
-Reviewers:   Elias Oltmanns and Randy Dunlap
+Reviewers:   Elias Oltmanns, Randy Dunlap, Andrew Morton,
+             John Kacur, and David Teigland.
 
-Writen for: 2.6.26-rc8 linux-2.6-tip.git tip/tracing/ftrace branch
+Written for: 2.6.27-rc1
 
 Introduction
 ------------
@@ -18,10 +19,11 @@ issues that take place outside of user-space.
 
 Although ftrace is the function tracer, it also includes an
 infrastructure that allows for other types of tracing. Some of the
-tracers that are currently in ftrace is a tracer to trace
+tracers that are currently in ftrace include a tracer to trace
 context switches, the time it takes for a high priority task to
 run after it was woken up, the time interrupts are disabled, and
-more.
+more (ftrace allows for tracer plugins, which means that the list of
+tracers can always grow).
 
 
 The File System
@@ -35,6 +37,8 @@ To mount the debugfs system:
   # mkdir /debug
   # mount -t debugfs nodev /debug
 
+(Note: it is more common to mount at /sys/kernel/debug, but for simplicity
+ this document will use /debug)
 
 That's it! (assuming that you have ftrace configured into your kernel)
 
@@ -50,20 +54,19 @@ of ftrace. Here is a list of some of the key files:
 
   available_tracers : This holds the different types of tracers that
                 have been compiled into the kernel. The tracers
-                listed here can be configured by echoing in their
-                name into current_tracer.
+                listed here can be configured by echoing their name
+                into current_tracer.
 
   tracing_enabled : This sets or displays whether the current_tracer
                 is activated and tracing or not. Echo 0 into this
-                file to disable the tracer or 1 (or non-zero) to
-                enable it.
+                file to disable the tracer or 1 to enable it.
 
   trace : This file holds the output of the trace in a human readable
-                format.
+                format (described below).
 
   latency_trace : This file shows the same trace but the information
                 is organized more to display possible latencies
-                in the system.
+                in the system (described below).
 
   trace_pipe : The output is the same as the "trace" file but this
                 file is meant to be streamed with live tracing.
@@ -75,7 +78,7 @@ of ftrace. Here is a list of some of the key files:
                 file, it is consumed, and will not be read
                 again with a sequential read. The "trace" and
                 "latency_trace" files are static, and if the
-                tracer isn't adding more data, they will display
+                tracer is not adding more data, they will display
                 the same information every time they are read.
 
   iter_ctrl : This file lets the user control the amount of data
@@ -92,10 +95,10 @@ of ftrace. Here is a list of some of the key files:
 
   trace_entries : This sets or displays the number of trace
                 entries each CPU buffer can hold. The tracer buffers
-                are the same size for each CPU, so care must be
-                taken when modifying the trace_entries. The trace
-                buffers are allocated in pages (blocks of memory that
-                the kernel uses for allocation, usually 4 KB in size).
+                are the same size for each CPU. The displayed number
+                is the size of the CPU buffer and not total size. The
+                trace buffers are allocated in pages (blocks of memory
+                that the kernel uses for allocation, usually 4 KB in size).
                 Since each entry is smaller than a page, if the last
                 allocated page has room for more entries than were
                 requested, the rest of the page is used to allocate
@@ -112,20 +115,19 @@ of ftrace. Here is a list of some of the key files:
                 on specified CPUS. The format is a hex string
                 representing the CPUS.
 
-  set_ftrace_filter : When dynamic ftrace is configured in, the
-                code is dynamically modified to disable calling
-                of the function profiler (mcount). This lets
-                tracing be configured in with practically no overhead
-                in performance.  This also has a side effect of
-                enabling or disabling specific functions to be
-                traced.  Echoing in names of functions into this
-                file will limit the trace to only these functions.
-
-  set_ftrace_notrace: This has the opposite effect that
-                set_ftrace_filter has. Any function that is added
-                here will not be traced. If a function exists
-                in both set_ftrace_filter and set_ftrace_notrace,
-                the function will _not_ be traced.
+  set_ftrace_filter : When dynamic ftrace is configured in (see the
+                section below "dynamic ftrace"), the code is dynamically
+                modified (code text rewrite) to disable calling of the
+                function profiler (mcount). This lets tracing be configured
+                in with practically no overhead in performance.  This also
+                has a side effect of enabling or disabling specific functions
+                to be traced. Echoing names of functions into this file
+                will limit the trace to only those functions.
+
+  set_ftrace_notrace: This has an effect opposite to that of
+                set_ftrace_filter. Any function that is added here will not
+                be traced. If a function exists in both set_ftrace_filter
+                and set_ftrace_notrace, the function will _not_ be traced.
 
   available_filter_functions : When a function is encountered the first
                 time by the dynamic tracer, it is recorded and
@@ -133,32 +135,31 @@ of ftrace. Here is a list of some of the key files:
                 lists the functions that have been recorded
                 by the dynamic tracer and these functions can
                 be used to set the ftrace filter by the above
-                "set_ftrace_filter" file.
+                "set_ftrace_filter" file. (See the section "dynamic ftrace"
+                below for more details).
 
 
 The Tracers
 -----------
 
-Here are the list of current tracers that can be configured.
+Here is the list of current tracers that may be configured.
 
   ftrace - function tracer that uses mcount to trace all functions.
-                It is possible to filter out which functions that are
-                to be traced when dynamic ftrace is configured in.
 
   sched_switch - traces the context switches between tasks.
 
-  irqsoff - traces the areas that disable interrupts and saves off
+  irqsoff - traces the areas that disable interrupts and saves
                 the trace with the longest max latency.
                 See tracing_max_latency.  When a new max is recorded,
                 it replaces the old trace. It is best to view this
-                trace with the latency_trace file.
+                trace via the latency_trace file.
 
-  preemptoff - Similar to irqsoff but traces and records the time
-                preemption is disabled.
+  preemptoff - Similar to irqsoff but traces and records the amount of
+                time for which preemption is disabled.
 
   preemptirqsoff - Similar to irqsoff and preemptoff, but traces and
-                 records the largest time irqs and/or preemption is
-                 disabled.
+                 records the largest time for which irqs and/or preemption
+                 is disabled.
 
   wakeup - Traces and records the max latency that it takes for
                 the highest priority task to get scheduled after
@@ -171,13 +172,13 @@ Here are the list of current tracers that can be configured.
 Examples of using the tracer
 ----------------------------
 
-Here are typical examples of using the tracers with only controlling
-them with the debugfs interface (without using any user-land utilities).
+Here are typical examples of using the tracers when controlling them only
+with the debugfs interface (without using any user-land utilities).
 
 Output format:
 --------------
 
-Here's an example of the output format of the file "trace"
+Here is an example of the output format of the file "trace"
 
                              --------
 # tracer: ftrace
@@ -189,14 +190,15 @@ Here's an example of the output format of the file "trace"
             bash-4251  [01] 10152.583855: _atomic_dec_and_lock <-dput
                              --------
 
-A header is printed with the trace that is represented. In this case
-the tracer is "ftrace". Then a header showing the format. Task name
-"bash", the task PID "4251", the CPU that it was running on
+A header is printed with the tracer name that is represented by the trace.
+In this case the tracer is "ftrace". Then a header showing the format. Task
+name "bash", the task PID "4251", the CPU that it was running on
 "01", the timestamp in <secs>.<usecs> format, the function name that was
 traced "path_put" and the parent function that called this function
-"path_walk".
+"path_walk". The timestamp is the time at which the function was
+entered.
 
-The sched_switch tracer also includes tracing of task wake ups and
+The sched_switch tracer also includes tracing of task wakeups and
 context switches.
 
      ksoftirqd/1-7     [01]  1453.070013:      7:115:R   +  2916:115:S
@@ -206,7 +208,7 @@ context switches.
      kondemand/1-2916  [01]  1453.070013:   2916:115:S ==>     7:115:R
      ksoftirqd/1-7     [01]  1453.070013:      7:115:S ==>     0:140:R
 
-Wake ups are represented by a "+" and the context switches show
+Wake ups are represented by a "+" and the context switches are shown as
 "==>".  The format is:
 
  Context switches:
@@ -221,7 +223,7 @@ Wake ups are represented by a "+" and the context switches show
 
   <pid>:<prio>:<state>    +  <pid>:<prio>:<state>
 
-The prio is the internal kernel priority, which is inverse to the
+The prio is the internal kernel priority, which is the inverse of the
 priority that is usually displayed by user-space tools. Zero represents
 the highest priority (99). Prio 100 starts the "nice" priorities with
 100 being equal to nice -20 and 139 being nice 19. The prio "140" is
@@ -232,7 +234,7 @@ Latency trace format
 --------------------
 
 For traces that display latency times, the latency_trace file gives
-a bit more information to see why a latency happened. Here's a typical
+somewhat more information to see why a latency happened. Here is a typical
 trace.
 
 # tracer: irqsoff
@@ -260,21 +262,20 @@ irqsoff latency trace v1.1.5 on 2.6.26-rc8
   <idle>-0     0d.s1   98us : trace_hardirqs_on (do_softirq)
 
 
-vim:ft=help
-
 
-This shows that the current tracer is "irqsoff" tracing the time
-interrupts are disabled. It gives the trace version and the kernel
-this was executed on (2.6.26-rc8). Then it displays the max latency
-in microsecs (97 us). The number of trace entries displayed
-by the total number recorded (both are three: #3/3). The type of
+This shows that the current tracer is "irqsoff" tracing the time for which
+interrupts were disabled. It gives the trace version and the version
+of the kernel upon which this was executed on (2.6.26-rc8). Then it displays
+the max latency in microsecs (97 us). The number of trace entries displayed
+and the total number recorded (both are three: #3/3). The type of
 preemption that was used (PREEMPT). VP, KP, SP, and HP are always zero
-and reserved for later use. #P is the number of online CPUS (#P:2).
+and are reserved for later use. #P is the number of online CPUS (#P:2).
 
-The task is the process that was running when the latency happened.
+The task is the process that was running when the latency occurred.
 (swapper pid: 0).
 
-The start and stop that caused the latencies:
+The start and stop (the functions in which the interrupts were disabled and
+enabled respectively) that caused the latencies:
 
   apic_timer_interrupt is where the interrupts were disabled.
   do_softirq is where they were enabled again.
@@ -286,14 +287,14 @@ explains which is which.
 
   pid: The PID of that process.
 
-  CPU#: The CPU that the process was running on.
+  CPU#: The CPU which the process was running on.
 
   irqs-off: 'd' interrupts are disabled. '.' otherwise.
 
   need-resched: 'N' task need_resched is set, '.' otherwise.
 
   hardirq/softirq:
-        'H' - hard irq happened inside a softirq.
+        'H' - hard irq occurred inside a softirq.
         'h' - hard irq is running
         's' - soft irq is running
         '.' - normal context.
@@ -303,7 +304,7 @@ explains which is which.
 The above is mostly meaningful for kernel developers.
 
   time: This differs from the trace file output. The trace file output
-        included an absolute timestamp. The timestamp used by the
+        includes an absolute timestamp. The timestamp used by the
         latency_trace file is relative to the start of the trace.
 
   delay: This is just to help catch your eye a bit better. And
@@ -385,7 +386,7 @@ Here are the available options:
 sched_switch
 ------------
 
-This tracer simply records schedule switches. Here's an example
+This tracer simply records schedule switches. Here is an example
 of how to use it.
 
  # echo sched_switch > /debug/tracing/current_tracer
@@ -421,8 +422,8 @@ the name of the trace and points to the options. The "FUNCTION"
 is a misnomer since here it represents the wake ups and context
 switches.
 
-The sched_switch only lists the wake ups (represented with '+')
-and context switches ('==>') with the previous task or current
+The sched_switch file only lists the wake ups (represented with '+')
+and context switches ('==>') with the previous task or current task
 first followed by the next task or task waking up. The format for both
 of these is PID:KERNEL-PRIO:TASK-STATE. Remember that the KERNEL-PRIO
 is the inverse of the actual priority with zero (0) being the highest
@@ -437,7 +438,8 @@ The task states are:
 
  R - running : wants to run, may not actually be running
  S - sleep   : process is waiting to be woken up (handles signals)
- D - deep sleep : process must be woken up (ignores signals)
+ D - disk sleep (uninterruptible sleep) : process must be woken up
+                                        (ignores signals)
  T - stopped : process suspended
  t - traced  : process is being traced (with something like gdb)
  Z - zombie  : process waiting to be cleaned up
@@ -447,8 +449,8 @@ The task states are:
 ftrace_enabled
 --------------
 
-The following tracers give different output depending on whether
-or not the sysctl ftrace_enabled is set. To set ftrace_enabled,
+The following tracers (listed below) give different output depending
+on whether or not the sysctl ftrace_enabled is set. To set ftrace_enabled,
 one can either use the sysctl function or set it via the proc
 file system interface.
 
@@ -475,13 +477,12 @@ interrupt from triggering or the mouse interrupt from letting the
 kernel know of a new mouse event. The result is a latency with the
 reaction time.
 
-The irqsoff tracer tracks the time interrupts are disabled to the time
-they are re-enabled. When a new maximum latency is hit, it saves off
-the trace so that it may be retrieved at a later time. Every time a
-new maximum in reached, the old saved trace is discarded and the new
-trace is saved.
+The irqsoff tracer tracks the time for which interrupts are disabled.
+When a new maximum latency is hit, the tracer saves the trace leading up
+to that latency point so that every time a new maximum is reached, the old
+saved trace is discarded and the new trace is saved.
 
-To reset the maximum, echo 0 into tracing_max_latency. Here's an
+To reset the maximum, echo 0 into tracing_max_latency. Here is an
 example:
 
  # echo irqsoff > /debug/tracing/current_tracer
@@ -493,14 +494,14 @@ example:
  # cat /debug/tracing/latency_trace
 # tracer: irqsoff
 #
-irqsoff latency trace v1.1.5 on 2.6.26-rc8
+irqsoff latency trace v1.1.5 on 2.6.26
 --------------------------------------------------------------------
- latency: 6 us, #3/3, CPU#1 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2)
+ latency: 12 us, #3/3, CPU#1 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2)
     -----------------
-    | task: bash-4269 (uid:0 nice:0 policy:0 rt_prio:0)
+    | task: bash-3730 (uid:0 nice:0 policy:0 rt_prio:0)
     -----------------
- => started at: copy_page_range
- => ended at:   copy_page_range
+ => started at: sys_setpgid
+ => ended at:   sys_setpgid
 
 #                _------=> CPU#
 #               / _-----=> irqs-off
@@ -511,21 +512,19 @@ irqsoff latency trace v1.1.5 on 2.6.26-rc8
 #              |||||     delay
 #  cmd     pid ||||| time  |   caller
 #     \   /    |||||   \   |   /
-    bash-4269  1...1    0us+: _spin_lock (copy_page_range)
-    bash-4269  1...1    7us : _spin_unlock (copy_page_range)
-    bash-4269  1...2    7us : trace_preempt_on (copy_page_range)
-
+    bash-3730  1d...    0us : _write_lock_irq (sys_setpgid)
+    bash-3730  1d..1    1us+: _write_unlock_irq (sys_setpgid)
+    bash-3730  1d..2   14us : trace_hardirqs_on (sys_setpgid)
 
-vim:ft=help
 
-Here we see that that we had a latency of 6 microsecs (which is
-very good). The spin_lock in copy_page_range disabled interrupts.
-The difference between the 6 and the displayed timestamp 7us is
-because the clock must have incremented between the time of recording
-the max latency and recording the function that had that latency.
+Here we see that that we had a latency of 12 microsecs (which is
+very good). The _write_lock_irq in sys_setpgid disabled interrupts.
+The difference between the 12 and the displayed timestamp 14us occurred
+because the clock was incremented between the time of recording the max
+latency and the time of recording the function that had that latency.
 
-Note the above had ftrace_enabled not set. If we set the ftrace_enabled,
-we get a much larger output:
+Note the above example had ftrace_enabled not set. If we set the
+ftrace_enabled, we get a much larger output:
 
 # tracer: irqsoff
 #
@@ -571,12 +570,10 @@ irqsoff latency trace v1.1.5 on 2.6.26-rc8
       ls-4339  0d..2   51us : trace_hardirqs_on (__alloc_pages_internal)
 
 
-vim:ft=help
-
 
 Here we traced a 50 microsecond latency. But we also see all the
 functions that were called during that time. Note that by enabling
-function tracing, we endure an added overhead. This overhead may
+function tracing, we incur an added overhead. This overhead may
 extend the latency times. But nevertheless, this trace has provided
 some very helpful debugging information.
 
@@ -590,8 +587,9 @@ for preemption to be enabled again before it can preempt a lower
 priority task.
 
 The preemptoff tracer traces the places that disable preemption.
-Like the irqsoff, it records the maximum latency that preemption
-was disabled. The control of preemptoff is much like the irqsoff.
+Like the irqsoff tracer, it records the maximum latency for which preemption
+was disabled. The control of preemptoff tracer is much like the irqsoff
+tracer.
 
  # echo preemptoff > /debug/tracing/current_tracer
  # echo 0 > /debug/tracing/tracing_max_latency
@@ -625,8 +623,6 @@ preemptoff latency trace v1.1.5 on 2.6.26-rc8
     sshd-4261  0d.s1   30us : trace_preempt_on (__do_softirq)
 
 
-vim:ft=help
-
 This has some more changes. Preemption was disabled when an interrupt
 came in (notice the 'h'), and was enabled while doing a softirq.
 (notice the 's'). But we also see that interrupts have been disabled
@@ -694,16 +690,16 @@ The above is an example of the preemptoff trace with ftrace_enabled
 set. Here we see that interrupts were disabled the entire time.
 The irq_enter code lets us know that we entered an interrupt 'h'.
 Before that, the functions being traced still show that it is not
-in an interrupt, but we can see by the functions themselves that
+in an interrupt, but we can see from the functions themselves that
 this is not the case.
 
-Notice that the __do_softirq when called doesn't have a preempt_count.
-It may seem that we missed a preempt enabled. What really happened
-is that the preempt count is held on the threads stack and we
+Notice that __do_softirq when called does not have a preempt_count.
+It may seem that we missed a preempt enabling. What really happened
+is that the preempt count is held on the thread's stack and we
 switched to the softirq stack (4K stacks in effect). The code
 does not copy the preempt count, but because interrupts are disabled,
-we don't need to worry about it. Having a tracer like this is good
-to let people know what really happens inside the kernel.
+we do not need to worry about it. Having a tracer like this is good
+for letting people know what really happens inside the kernel.
 
 
 preemptirqsoff
@@ -713,7 +709,7 @@ Knowing the locations that have interrupts disabled or preemption
 disabled for the longest times is helpful. But sometimes we would
 like to know when either preemption and/or interrupts are disabled.
 
-The following code:
+Consider the following code:
 
     local_irq_disable();
     call_function_with_irqs_off();
@@ -769,12 +765,10 @@ preemptirqsoff latency trace v1.1.5 on 2.6.26-rc8
       ls-4860  0d.s1  294us : trace_preempt_on (__do_softirq)
 
 
-vim:ft=help
-
 
 The trace_hardirqs_off_thunk is called from assembly on x86 when
 interrupts are disabled in the assembly code. Without the function
-tracing, we don't know if interrupts were enabled within the preemption
+tracing, we do not know if interrupts were enabled within the preemption
 points. We do see that it started with preemption enabled.
 
 Here is a trace with ftrace_enabled set:
@@ -865,19 +859,19 @@ preemptirqsoff latency trace v1.1.5 on 2.6.26-rc8
 
 This is a very interesting trace. It started with the preemption of
 the ls task. We see that the task had the "need_resched" bit set
-with the 'N' in the trace.  Interrupts are disabled in the spin_lock
-and the trace started. We see that a schedule took place to run
+via the 'N' in the trace.  Interrupts were disabled before the spin_lock
+at the beginning of the trace. We see that a schedule took place to run
 sshd.  When the interrupts were enabled, we took an interrupt.
 On return from the interrupt handler, the softirq ran. We took another
-interrupt while running the softirq as we see with the capital 'H'.
+interrupt while running the softirq as we see from the capital 'H'.
 
 
 wakeup
 ------
 
-In Real-Time environment it is very important to know the wakeup
-time it takes for the highest priority task that wakes up to the
-time it executes. This is also known as "schedule latency".
+In a Real-Time environment it is very important to know the wakeup
+time it takes for the highest priority task that is woken up to the
+time that it executes. This is also known as "schedule latency".
 I stress the point that this is about RT tasks. It is also important
 to know the scheduling latency of non-RT tasks, but the average
 schedule latency is better for non-RT tasks. Tools like
@@ -926,8 +920,6 @@ wakeup latency trace v1.1.5 on 2.6.26-rc8
   <idle>-0     1d..4    4us : schedule (cpu_idle)
 
 
-vim:ft=help
-
 
 Running this on an idle system, we see that it only took 4 microseconds
 to perform the task switch.  Note, since the trace marker in the
@@ -996,15 +988,15 @@ ksoftirq-7     1d..6   49us : sub_preempt_count (_spin_unlock)
 ksoftirq-7     1d..4   50us : schedule (__cond_resched)
 
 The interrupt went off while running ksoftirqd. This task runs at
-SCHED_OTHER. Why didn't we see the 'N' set early? This may be
+SCHED_OTHER. Why did not we see the 'N' set early? This may be
 a harmless bug with x86_32 and 4K stacks. On x86_32 with 4K stacks
-configured, the interrupt and softirq runs with their own stack.
+configured, the interrupt and softirq run with their own stack.
 Some information is held on the top of the task's stack (need_resched
 and preempt_count are both stored there). The setting of the NEED_RESCHED
 bit is done directly to the task's stack, but the reading of the
 NEED_RESCHED is done by looking at the current stack, which in this case
 is the stack for the hard interrupt. This hides the fact that NEED_RESCHED
-has been set. We don't see the 'N' until we switch back to the task's
+has been set. We do not see the 'N' until we switch back to the task's
 assigned stack.
 
 ftrace
@@ -1044,14 +1036,14 @@ this tracer is a nop.
 [...]
 
 
-Note: It is sometimes better to enable or disable tracing directly from
-a program, because the buffer may be overflowed by the echo commands
-before you get to the point you want to trace. It is also easier to
-stop the tracing at the point that you hit the part that you are
-interested in. Since the ftrace buffer is a ring buffer with the
-oldest data being overwritten, usually it is sufficient to start the
-tracer with an echo command but have you code stop it. Something
-like the following is usually appropriate for this.
+Note: ftrace uses ring buffers to store the above entries. The newest data
+may overwrite the oldest data. Sometimes using echo to stop the trace
+is not sufficient because the tracing could have overwritten the data
+that you wanted to record. For this reason, it is sometimes better to
+disable tracing directly from a program. This allows you to stop the
+tracing at the point that you hit the part that you are interested in.
+To disable the tracing directly from a C program, something like following
+code snippet can be used:
 
 int trace_fd;
 [...]
@@ -1060,20 +1052,26 @@ int main(int argc, char *argv[]) {
         trace_fd = open("/debug/tracing/tracing_enabled", O_WRONLY);
         [...]
         if (condition_hit()) {
-        write(trace_fd, "0", 1);
+                write(trace_fd, "0", 1);
         }
         [...]
 }
 
+Note: Here we hard coded the path name. The debugfs mount is not
+guaranteed to be at /debug (and is more commonly at /sys/kernel/debug).
+For simple one time traces, the above is sufficent. For anything else,
+a search through /proc/mounts may be needed to find where the debugfs
+file-system is mounted.
 
 dynamic ftrace
 --------------
 
-If CONFIG_DYNAMIC_FTRACE is set, then the system will run with
+If CONFIG_DYNAMIC_FTRACE is set, the system will run with
 virtually no overhead when function tracing is disabled. The way
 this works is the mcount function call (placed at the start of
 every kernel function, produced by the -pg switch in gcc), starts
-of pointing to a simple return.
+of pointing to a simple return. (Enabling FTRACE will include the
+-pg switch in the compiling of the kernel.)
 
 When dynamic ftrace is initialized, it calls kstop_machine to make
 the machine act like a uniprocessor so that it can freely modify code
@@ -1086,15 +1084,15 @@ Later on the ftraced kernel thread is awoken and will again call
 kstop_machine if new functions have been recorded. The ftraced thread
 will change all calls to mcount to "nop".  Just calling mcount
 and having mcount return has shown a 10% overhead. By converting
-it to a nop, there is no recordable overhead to the system.
+it to a nop, there is no measurable overhead to the system.
 
 One special side-effect to the recording of the functions being
-traced, is that we can now selectively choose which functions we
-want to trace and which ones we want the mcount calls to remain as
+traced is that we can now selectively choose which functions we
+wish to trace and which ones we want the mcount calls to remain as
 nops.
 
 Two files are used, one for enabling and one for disabling the tracing
-of recorded functions. They are:
+of specified functions. They are:
 
   set_ftrace_filter
 
@@ -1116,7 +1114,7 @@ pick_next_task_fair
 mutex_lock
 [...]
 
-If I'm only interested in sys_nanosleep and hrtimer_interrupt:
+If I am only interested in sys_nanosleep and hrtimer_interrupt:
 
  # echo sys_nanosleep hrtimer_interrupt \
                 > /debug/tracing/set_ftrace_filter
@@ -1133,21 +1131,21 @@ If I'm only interested in sys_nanosleep and hrtimer_interrupt:
           usleep-4134  [00]  1317.070111: sys_nanosleep <-syscall_call
           <idle>-0     [00]  1317.070115: hrtimer_interrupt <-smp_apic_timer_interrupt
 
-To see what functions are being traced, you can cat the file:
+To see which functions are being traced, you can cat the file:
 
  # cat /debug/tracing/set_ftrace_filter
 hrtimer_interrupt
 sys_nanosleep
 
 
-Perhaps this isn't enough. The filters also allow simple wild cards.
+Perhaps this is not enough. The filters also allow simple wild cards.
 Only the following are currently available
 
   <match>*  - will match functions that begin with <match>
   *<match>  - will match functions that end with <match>
   *<match>* - will match functions that have <match> in it
 
-Thats all the wild cards that are allowed.
+These are the only wild cards which are supported.
 
   <match>*<match> will not work.
 
@@ -1258,15 +1256,15 @@ calls that need to be converted into nops. If there are not any, then
 it simply goes back to sleep. But if there are some, it will call
 kstop_machine to convert the calls to nops.
 
-There may be a case that you do not want this added latency.
+There may be a case in which you do not want this added latency.
 Perhaps you are doing some audio recording and this activity might
 cause skips in the playback. There is an interface to disable
-and enable the ftraced kernel thread.
+and enable the "ftraced" kernel thread.
 
  # echo 0 > /debug/tracing/ftraced_enabled
 
-This will disable the calling of the kstop_machine to update the
-mcount calls to nops. Remember that there's a large overhead
+This will disable the calling of kstop_machine to update the
+mcount calls to nops. Remember that there is a large overhead
 to calling mcount. Without this kernel thread, that overhead will
 exist.
 
@@ -1282,8 +1280,8 @@ that uses ftrace function recording.
 trace_pipe
 ----------
 
-The trace_pipe outputs the same as trace, but the effect on the
-tracing is different. Every read from trace_pipe is consumed.
+The trace_pipe outputs the same content as the trace file, but the effect
+on the tracing is different. Every read from trace_pipe is consumed.
 This means that subsequent reads will be different. The trace
 is live.
 
@@ -1313,7 +1311,7 @@ is live.
             bash-4043  [00] 41.267111: select_task_rq_rt <-try_to_wake_up
 
 
-Note, reading the trace_pipe will block until more input is added.
+Note, reading the trace_pipe file will block until more input is added.
 By changing the tracer, trace_pipe will issue an EOF. We needed
 to set the ftrace tracer _before_ cating the trace_pipe file.
 
@@ -1322,7 +1320,7 @@ trace entries
 -------------
 
 Having too much or not enough data can be troublesome in diagnosing
-some issue in the kernel. The file trace_entries is used to modify
+an issue in the kernel. The file trace_entries is used to modify
 the size of the internal trace buffers. The number listed
 is the number of entries that can be recorded per CPU. To know
 the full size, multiply the number of possible CPUS with the
@@ -1332,7 +1330,8 @@ number of entries.
 65620
 
 Note, to modify this, you must have tracing completely disabled. To do that,
-echo "none" into the current_tracer.
+echo "none" into the current_tracer. If the current_tracer is not set
+to "none", an EINVAL error will be returned.
 
  # echo none > /debug/tracing/current_tracer
  # echo 100000 > /debug/tracing/trace_entries
@@ -1341,18 +1340,18 @@ echo "none" into the current_tracer.
 
 
 Notice that we echoed in 100,000 but the size is 100,045. The entries
-are held by individual pages. It allocates the number of pages it takes
+are held in individual pages. It allocates the number of pages it takes
 to fulfill the request. If more entries may fit on the last page
-it will add them.
+then they will be added.
 
  # echo 1 > /debug/tracing/trace_entries
  # cat /debug/tracing/trace_entries
 85
 
-This shows us that 85 entries can fit on a single page.
+This shows us that 85 entries can fit in a single page.
 
-The number of pages that will be allocated is a percentage of available
-memory. Allocating too much will produce an error.
+The number of pages which will be allocated is limited to a percentage
+of available memory. Allocating too much will produce an error.
 
  # echo 1000000000000 > /debug/tracing/trace_entries
 -bash: echo: write error: Cannot allocate memory
diff --git a/Documentation/i2c/busses/i2c-i810 b/Documentation/i2c/busses/i2c-i810
deleted file mode 100644
index 778210ee158..00000000000
--- a/Documentation/i2c/busses/i2c-i810
+++ /dev/null
@@ -1,47 +0,0 @@
-Kernel driver i2c-i810
-
-Supported adapters:
-  * Intel 82810, 82810-DC100, 82810E, and 82815 (GMCH)
-  * Intel 82845G (GMCH)
-
-Authors: 
-        Frodo Looijaard <frodol@dds.nl>, 
-        Philip Edelbrock <phil@netroedge.com>,
-        Kyösti Mälkki <kmalkki@cc.hut.fi>,
-        Ralph Metzler <rjkm@thp.uni-koeln.de>,
-        Mark D. Studebaker <mdsxyz123@yahoo.com>
-
-Main contact: Mark Studebaker <mdsxyz123@yahoo.com>
-
-Description 
------------ 
-
-WARNING: If you have an '810' or '815' motherboard, your standard I2C
-temperature sensors are most likely on the 801's I2C bus. You want the
-i2c-i801 driver for those, not this driver.
-
-Now for the i2c-i810...
-
-The GMCH chip contains two I2C interfaces.
-
-The first interface is used for DDC (Data Display Channel) which is a
-serial channel through the VGA monitor connector to a DDC-compliant
-monitor. This interface is defined by the Video Electronics Standards
-Association (VESA). The standards are available for purchase at
-http://www.vesa.org .
-
-The second interface is a general-purpose I2C bus. It may be connected to a
-TV-out chip such as the BT869 or possibly to a digital flat-panel display.
-
-Features
--------- 
-
-Both busses use the i2c-algo-bit driver for 'bit banging'
-and support for specific transactions is provided by i2c-algo-bit.
-
-Issues
-------
-
-If you enable bus testing in i2c-algo-bit (insmod i2c-algo-bit bit_test=1),
-the test may fail; if so, the i2c-i810 driver won't be inserted. However,
-we think this has been fixed.
diff --git a/Documentation/i2c/busses/i2c-prosavage b/Documentation/i2c/busses/i2c-prosavage
deleted file mode 100644
index 70368790251..00000000000
--- a/Documentation/i2c/busses/i2c-prosavage
+++ /dev/null
@@ -1,23 +0,0 @@
-Kernel driver i2c-prosavage
-
-Supported adapters:
-        
-        S3/VIA KM266/VT8375 aka ProSavage8 
-        S3/VIA KM133/VT8365 aka Savage4 
-
-Author: Henk Vergonet <henk@god.dyndns.org>
-
-Description
------------
-
-The Savage4 chips contain two I2C interfaces (aka a I2C 'master' or
-'host'). 
-
-The first interface is used for DDC (Data Display Channel) which is a
-serial channel through the VGA monitor connector to a DDC-compliant
-monitor. This interface is defined by the Video Electronics Standards
-Association (VESA). The standards are available for purchase at
-http://www.vesa.org . The second interface is a general-purpose I2C bus.
-
-Usefull for gaining access to the TV Encoder chips.
-
diff --git a/Documentation/i2c/busses/i2c-savage4 b/Documentation/i2c/busses/i2c-savage4
deleted file mode 100644
index 6ecceab618d..00000000000
--- a/Documentation/i2c/busses/i2c-savage4
+++ /dev/null
@@ -1,26 +0,0 @@
-Kernel driver i2c-savage4
-
-Supported adapters:
-  * Savage4
-  * Savage2000
-
-Authors: 
-        Alexander Wold <awold@bigfoot.com>,
-        Mark D. Studebaker <mdsxyz123@yahoo.com> 
-
-Description
------------
-
-The Savage4 chips contain two I2C interfaces (aka a I2C 'master'
-or 'host'). 
-
-The first interface is used for DDC (Data Display Channel) which is a
-serial channel through the VGA monitor connector to a DDC-compliant
-monitor. This interface is defined by the Video Electronics Standards
-Association (VESA). The standards are available for purchase at
-http://www.vesa.org . The DDC bus is not yet supported because its register
-is not directly memory-mapped.
-
-The second interface is a general-purpose I2C bus. This is the only
-interface supported by the driver at the moment.
-
diff --git a/Documentation/i2c/fault-codes b/Documentation/i2c/fault-codes
new file mode 100644
index 00000000000..045765c0b9b
--- /dev/null
+++ b/Documentation/i2c/fault-codes
@@ -0,0 +1,127 @@
+This is a summary of the most important conventions for use of fault
+codes in the I2C/SMBus stack.
+
+
+A "Fault" is not always an "Error"
+----------------------------------
+Not all fault reports imply errors; "page faults" should be a familiar
+example.  Software often retries idempotent operations after transient
+faults.  There may be fancier recovery schemes that are appropriate in
+some cases, such as re-initializing (and maybe resetting).  After such
+recovery, triggered by a fault report, there is no error.
+
+In a similar way, sometimes a "fault" code just reports one defined
+result for an operation ... it doesn't indicate that anything is wrong
+at all, just that the outcome wasn't on the "golden path".
+
+In short, your I2C driver code may need to know these codes in order
+to respond correctly.  Other code may need to rely on YOUR code reporting
+the right fault code, so that it can (in turn) behave correctly.
+
+
+I2C and SMBus fault codes
+-------------------------
+These are returned as negative numbers from most calls, with zero or
+some positive number indicating a non-fault return.  The specific
+numbers associated with these symbols differ between architectures,
+though most Linux systems use <asm-generic/errno*.h> numbering.
+
+Note that the descriptions here are not exhaustive.  There are other
+codes that may be returned, and other cases where these codes should
+be returned.  However, drivers should not return other codes for these
+cases (unless the hardware doesn't provide unique fault reports).
+
+Also, codes returned by adapter probe methods follow rules which are
+specific to their host bus (such as PCI, or the platform bus).
+
+
+EAGAIN
+        Returned by I2C adapters when they lose arbitration in master
+        transmit mode:  some other master was transmitting different
+        data at the same time.
+
+        Also returned when trying to invoke an I2C operation in an
+        atomic context, when some task is already using that I2C bus
+        to execute some other operation.
+
+EBADMSG
+        Returned by SMBus logic when an invalid Packet Error Code byte
+        is received.  This code is a CRC covering all bytes in the
+        transaction, and is sent before the terminating STOP.  This
+        fault is only reported on read transactions; the SMBus slave
+        may have a way to report PEC mismatches on writes from the
+        host.  Note that even if PECs are in use, you should not rely
+        on these as the only way to detect incorrect data transfers.
+
+EBUSY
+        Returned by SMBus adapters when the bus was busy for longer
+        than allowed.  This usually indicates some device (maybe the
+        SMBus adapter) needs some fault recovery (such as resetting),
+        or that the reset was attempted but failed.
+
+EINVAL
+        This rather vague error means an invalid parameter has been
+        detected before any I/O operation was started.  Use a more
+        specific fault code when you can.
+
+        One example would be a driver trying an SMBus Block Write
+        with block size outside the range of 1-32 bytes.
+
+EIO
+        This rather vague error means something went wrong when
+        performing an I/O operation.  Use a more specific fault
+        code when you can.
+
+ENODEV
+        Returned by driver probe() methods.  This is a bit more
+        specific than ENXIO, implying the problem isn't with the
+        address, but with the device found there.  Driver probes
+        may verify the device returns *correct* responses, and
+        return this as appropriate.  (The driver core will warn
+        about probe faults other than ENXIO and ENODEV.)
+
+ENOMEM
+        Returned by any component that can't allocate memory when
+        it needs to do so.
+
+ENXIO
+        Returned by I2C adapters to indicate that the address phase
+        of a transfer didn't get an ACK.  While it might just mean
+        an I2C device was temporarily not responding, usually it
+        means there's nothing listening at that address.
+
+        Returned by driver probe() methods to indicate that they
+        found no device to bind to.  (ENODEV may also be used.)
+
+EOPNOTSUPP
+        Returned by an adapter when asked to perform an operation
+        that it doesn't, or can't, support.
+
+        For example, this would be returned when an adapter that
+        doesn't support SMBus block transfers is asked to execute
+        one.  In that case, the driver making that request should
+        have verified that functionality was supported before it
+        made that block transfer request.
+
+        Similarly, if an I2C adapter can't execute all legal I2C
+        messages, it should return this when asked to perform a
+        transaction it can't.  (These limitations can't be seen in
+        the adapter's functionality mask, since the assumption is
+        that if an adapter supports I2C it supports all of I2C.)
+
+EPROTO
+        Returned when slave does not conform to the relevant I2C
+        or SMBus (or chip-specific) protocol specifications.  One
+        case is when the length of an SMBus block data response
+        (from the SMBus slave) is outside the range 1-32 bytes.
+
+ETIMEDOUT
+        This is returned by drivers when an operation took too much
+        time, and was aborted before it completed.
+
+        SMBus adapters may return it when an operation took more
+        time than allowed by the SMBus specification; for example,
+        when a slave stretches clocks too far.  I2C has no such
+        timeouts, but it's normal for I2C adapters to impose some
+        arbitrary limits (much longer than SMBus!) too.
+
diff --git a/Documentation/i2c/smbus-protocol b/Documentation/i2c/smbus-protocol
index 03f08fb491c..24bfb65da17 100644
--- a/Documentation/i2c/smbus-protocol
+++ b/Documentation/i2c/smbus-protocol
@@ -42,8 +42,8 @@ Count (8 bits): A data byte containing the length of a block operation.
 [..]: Data sent by I2C device, as opposed to data sent by the host adapter.
 
 
-SMBus Quick Command:  i2c_smbus_write_quick()
-=============================================
+SMBus Quick Command
+===================
 
 This sends a single bit to the device, at the place of the Rd/Wr bit.
 
diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients
index d4cd4126d1a..6b61b3a2e90 100644
--- a/Documentation/i2c/writing-clients
+++ b/Documentation/i2c/writing-clients
@@ -44,6 +44,10 @@ static struct i2c_driver foo_driver = {
         .id_table       = foo_ids,
         .probe          = foo_probe,
         .remove         = foo_remove,
+        /* if device autodetection is needed: */
+        .class          = I2C_CLASS_SOMETHING,
+        .detect         = foo_detect,
+        .address_data   = &addr_data,
 
         /* else, driver uses "legacy" binding model: */
         .attach_adapter = foo_attach_adapter,
@@ -217,6 +221,31 @@ in the I2C bus driver. You may want to save the returned i2c_client
 reference for later use.
 
 
+Device Detection (Standard driver model)
+----------------------------------------
+
+Sometimes you do not know in advance which I2C devices are connected to
+a given I2C bus.  This is for example the case of hardware monitoring
+devices on a PC's SMBus.  In that case, you may want to let your driver
+detect supported devices automatically.  This is how the legacy model
+was working, and is now available as an extension to the standard
+driver model (so that we can finally get rid of the legacy model.)
+
+You simply have to define a detect callback which will attempt to
+identify supported devices (returning 0 for supported ones and -ENODEV
+for unsupported ones), a list of addresses to probe, and a device type
+(or class) so that only I2C buses which may have that type of device
+connected (and not otherwise enumerated) will be probed.  The i2c
+core will then call you back as needed and will instantiate a device
+for you for every successful detection.
+
+Note that this mechanism is purely optional and not suitable for all
+devices.  You need some reliable way to identify the supported devices
+(typically using device-specific, dedicated identification registers),
+otherwise misdetections are likely to occur and things can get wrong
+quickly.
+
+
 Device Deletion (Standard driver model)
 ---------------------------------------
 
@@ -569,7 +598,6 @@ SMBus communication
   in terms of it. Never use this function directly!
 
 
-  extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
   extern s32 i2c_smbus_read_byte(struct i2c_client * client);
   extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value);
   extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command);
@@ -578,30 +606,31 @@ SMBus communication
   extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command);
   extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
                                        u8 command, u16 value);
+  extern s32 i2c_smbus_read_block_data(struct i2c_client * client,
+                                       u8 command, u8 *values);
   extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
                                         u8 command, u8 length,
                                         u8 *values);
   extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,
                                            u8 command, u8 length, u8 *values);
-
-These ones were removed in Linux 2.6.10 because they had no users, but could
-be added back later if needed:
-
-  extern s32 i2c_smbus_read_block_data(struct i2c_client * client,
-                                       u8 command, u8 *values);
   extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client,
                                             u8 command, u8 length,
                                             u8 *values);
+
+These ones were removed from i2c-core because they had no users, but could
+be added back later if needed:
+
+  extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
   extern s32 i2c_smbus_process_call(struct i2c_client * client,
                                     u8 command, u16 value);
   extern s32 i2c_smbus_block_process_call(struct i2c_client *client,
                                           u8 command, u8 length,
                                           u8 *values)
 
-All these transactions return -1 on failure. The 'write' transactions 
-return 0 on success; the 'read' transactions return the read value, except 
-for read_block, which returns the number of values read. The block buffers 
-need not be longer than 32 bytes.
+All these transactions return a negative errno value on failure. The 'write'
+transactions return 0 on success; the 'read' transactions return the read
+value, except for block transactions, which return the number of values
+read. The block buffers need not be longer than 32 bytes.
 
 You can read the file `smbus-protocol' for more information about the
 actual SMBus protocol.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b3a5aad7e62..312fe77764a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -571,6 +571,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
         debug_objects   [KNL] Enable object debugging
 
+        debugpat        [X86] Enable PAT debugging
+
         decnet.addr=    [HW,NET]
                         Format: <area>[,<node>]
                         See also Documentation/networking/decnet.txt.
@@ -756,9 +758,6 @@ and is between 256 and 4096 characters. It is defined in the file
         hd=             [EIDE] (E)IDE hard drive subsystem geometry
                         Format: <cyl>,<head>,<sect>
 
-        hd?=            [HW] (E)IDE subsystem
-        hd?lun=         See Documentation/ide/ide.txt.
-
         highmem=nn[KMG] [KNL,BOOT] forces the highmem zone to have an exact
                         size of <nn>. This works even on boxes that have no
                         highmem otherwise. This also works to reduce highmem
@@ -1610,6 +1609,10 @@ and is between 256 and 4096 characters. It is defined in the file
                         Format: { parport<nr> | timid | 0 }
                         See also Documentation/parport.txt.
 
+        pmtmr=          [X86] Manual setup of pmtmr I/O Port. 
+                        Override pmtimer IOPort with a hex value.
+                        e.g. pmtmr=0x508
+
         pnpacpi=        [ACPI]
                         { off }
 
diff --git a/MAINTAINERS b/MAINTAINERS
index 1528e58b540..fc6c005c531 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1686,6 +1686,13 @@ L:	linuxppc-embedded@ozlabs.org
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
 
+FREESCALE I2C CPM DRIVER
+P:      Jochen Friedrich
+M:      jochen@scram.de
+L:      linuxppc-dev@ozlabs.org
+L:      i2c@lm-sensors.org
+S:      Maintained
+
 FREESCALE SOC FS_ENET DRIVER
 P:      Pantelis Antoniou
 M:      pantelis.antoniou@gmail.com
@@ -1770,6 +1777,11 @@ M:	hch@infradead.org
 W:      ftp://ftp.openlinux.org/pub/people/hch/vxfs
 S:      Maintained
 
+FTRACE
+P:      Steven Rostedt
+M:      srostedt@redhat.com
+S:      Maintained
+
 FUJITSU FR-V (FRV) PORT
 P:      David Howells
 M:      dhowells@redhat.com
diff --git a/arch/Kconfig b/arch/Kconfig
index 3ea332b009e..ad89a33d8c6 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -39,3 +39,6 @@ config HAVE_KRETPROBES
 
 config HAVE_DMA_ATTRS
         def_bool n
+
+config USE_GENERIC_SMP_HELPERS
+        def_bool n
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 729cdbdf803..dbe8c280fea 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -528,6 +528,7 @@ config ARCH_MAY_HAVE_PC_FDC
 config SMP
         bool "Symmetric multi-processing support"
         depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
+        select USE_GENERIC_SMP_HELPERS
         ---help---
           This enables support for systems with more than one CPU. If you have
           a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index b04f1feb1dd..04dcc5e5d4c 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -660,9 +660,9 @@ __marvel_rtc_io(u8 b, unsigned long addr, int write)
 
 #ifdef CONFIG_SMP
                 if (smp_processor_id() != boot_cpuid)
-                        smp_call_function_on_cpu(__marvel_access_rtc,
-                                                 &rtc_access, 1, 1,
-                                                 cpumask_of_cpu(boot_cpuid));
+                        smp_call_function_single(boot_cpuid,
+                                                 __marvel_access_rtc,
+                                                 &rtc_access, 1);
                 else
                         __marvel_access_rtc(&rtc_access);
 #else
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index facf82a5499..c626a821cdc 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -42,8 +42,7 @@ void ack_bad_irq(unsigned int irq)
 #ifdef CONFIG_SMP 
 static char irq_user_affinity[NR_IRQS];
 
-int
-select_smp_affinity(unsigned int irq)
+int irq_select_affinity(unsigned int irq)
 {
         static int last_cpu;
         int cpu = last_cpu + 1;
@@ -51,7 +50,7 @@ select_smp_affinity(unsigned int irq)
         if (!irq_desc[irq].chip->set_affinity || irq_user_affinity[irq])
                 return 1;
 
-        while (!cpu_possible(cpu))
+        while (!cpu_possible(cpu) || !cpu_isset(cpu, irq_default_affinity))
                 cpu = (cpu < (NR_CPUS-1) ? cpu + 1 : 0);
         last_cpu = cpu;
 
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 96ed82fd9ee..351407e07e7 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -160,7 +160,7 @@ common_shutdown(int mode, char *restart_cmd)
         struct halt_info args;
         args.mode = mode;
         args.restart_cmd = restart_cmd;
-        on_each_cpu(common_shutdown_1, &args, 1, 0);
+        on_each_cpu(common_shutdown_1, &args, 0);
 }
 
 void
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 2525692db0a..83df541650f 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -62,6 +62,7 @@ static struct {
 enum ipi_message_type {
         IPI_RESCHEDULE,
         IPI_CALL_FUNC,
+        IPI_CALL_FUNC_SINGLE,
         IPI_CPU_STOP,
 };
 
@@ -558,51 +559,6 @@ send_ipi_message(cpumask_t to_whom, enum ipi_message_type operation)
                 wripir(i);
 }
 
-/* Structure and data for smp_call_function.  This is designed to 
-   minimize static memory requirements.  Plus it looks cleaner.  */
-
-struct smp_call_struct {
-        void (*func) (void *info);
-        void *info;
-        long wait;
-        atomic_t unstarted_count;
-        atomic_t unfinished_count;
-};
-
-static struct smp_call_struct *smp_call_function_data;
-
-/* Atomicly drop data into a shared pointer.  The pointer is free if
-   it is initially locked.  If retry, spin until free.  */
-
-static int
-pointer_lock (void *lock, void *data, int retry)
-{
-        void *old, *tmp;
-
-        mb();
- again:
-        /* Compare and swap with zero.  */
-        asm volatile (
-        "1:     ldq_l   %0,%1\n"
-        "       mov     %3,%2\n"
-        "       bne     %0,2f\n"
-        "       stq_c   %2,%1\n"
-        "       beq     %2,1b\n"
-        "2:"
-        : "=&r"(old), "=m"(*(void **)lock), "=&r"(tmp)
-        : "r"(data)
-        : "memory");
-
-        if (old == 0)
-                return 0;
-        if (! retry)
-                return -EBUSY;
-
-        while (*(void **)lock)
-                barrier();
-        goto again;
-}
-
 void
 handle_ipi(struct pt_regs *regs)
 {
@@ -632,31 +588,12 @@ handle_ipi(struct pt_regs *regs)
                         break;
 
                 case IPI_CALL_FUNC:
-                    {
-                        struct smp_call_struct *data;
-                        void (*func)(void *info);
-                        void *info;
-                        int wait;
-
-                        data = smp_call_function_data;
-                        func = data->func;
-                        info = data->info;
-                        wait = data->wait;
-
-                        /* Notify the sending CPU that the data has been
-                           received, and execution is about to begin.  */
-                        mb();
-                        atomic_dec (&data->unstarted_count);
-
-                        /* At this point the structure may be gone unless
-                           wait is true.  */
-                        (*func)(info);
-
-                        /* Notify the sending CPU that the task is done.  */
-                        mb();
-                        if (wait) atomic_dec (&data->unfinished_count);
+                        generic_smp_call_function_interrupt();
+                        break;
+
+                case IPI_CALL_FUNC_SINGLE:
+                        generic_smp_call_function_single_interrupt();
                         break;
-                    }
 
                 case IPI_CPU_STOP:
                         halt();
@@ -700,102 +637,15 @@ smp_send_stop(void)
         send_ipi_message(to_whom, IPI_CPU_STOP);
 }
 
-/*
- * Run a function on all other CPUs.
- *  <func>      The function to run. This must be fast and non-blocking.
- *  <info>      An arbitrary pointer to pass to the function.
- *  <retry>     If true, keep retrying until ready.
- *  <wait>      If true, wait until function has completed on other CPUs.
- *  [RETURNS]   0 on success, else a negative status code.
- *
- * Does not return until remote CPUs are nearly ready to execute <func>
- * or are or have executed.
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-
-int
-smp_call_function_on_cpu (void (*func) (void *info), void *info, int retry,
-                          int wait, cpumask_t to_whom)
+void arch_send_call_function_ipi(cpumask_t mask)
 {
-        struct smp_call_struct data;
-        unsigned long timeout;
-        int num_cpus_to_call;
-        
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        data.func = func;
-        data.info = info;
-        data.wait = wait;
-
-        cpu_clear(smp_processor_id(), to_whom);
-        num_cpus_to_call = cpus_weight(to_whom);
-
-        atomic_set(&data.unstarted_count, num_cpus_to_call);
-        atomic_set(&data.unfinished_count, num_cpus_to_call);
-
-        /* Acquire the smp_call_function_data mutex.  */
-        if (pointer_lock(&smp_call_function_data, &data, retry))
-                return -EBUSY;
-
-        /* Send a message to the requested CPUs.  */
-        send_ipi_message(to_whom, IPI_CALL_FUNC);
-
-        /* Wait for a minimal response.  */
-        timeout = jiffies + HZ;
-        while (atomic_read (&data.unstarted_count) > 0
-               && time_before (jiffies, timeout))
-                barrier();
-
-        /* If there's no response yet, log a message but allow a longer
-         * timeout period -- if we get a response this time, log
-         * a message saying when we got it.. 
-         */
-        if (atomic_read(&data.unstarted_count) > 0) {
-                long start_time = jiffies;
-                printk(KERN_ERR "%s: initial timeout -- trying long wait\n",
-                       __func__);
-                timeout = jiffies + 30 * HZ;
-                while (atomic_read(&data.unstarted_count) > 0
-                       && time_before(jiffies, timeout))
-                        barrier();
-                if (atomic_read(&data.unstarted_count) <= 0) {
-                        long delta = jiffies - start_time;
-                        printk(KERN_ERR 
-                               "%s: response %ld.%ld seconds into long wait\n",
-                               __func__, delta / HZ,
-                               (100 * (delta - ((delta / HZ) * HZ))) / HZ);
-                }
-        }
-
-        /* We either got one or timed out -- clear the lock. */
-        mb();
-        smp_call_function_data = NULL;
-
-        /* 
-         * If after both the initial and long timeout periods we still don't
-         * have a response, something is very wrong...
-         */
-        BUG_ON(atomic_read (&data.unstarted_count) > 0);
-
-        /* Wait for a complete response, if needed.  */
-        if (wait) {
-                while (atomic_read (&data.unfinished_count) > 0)
-                        barrier();
-        }
-
-        return 0;
+        send_ipi_message(mask, IPI_CALL_FUNC);
 }
-EXPORT_SYMBOL(smp_call_function_on_cpu);
 
-int
-smp_call_function (void (*func) (void *info), void *info, int retry, int wait)
+void arch_send_call_function_single_ipi(int cpu)
 {
-        return smp_call_function_on_cpu (func, info, retry, wait,
-                                         cpu_online_map);
+        send_ipi_message(cpumask_of_cpu(cpu), IPI_CALL_FUNC_SINGLE);
 }
-EXPORT_SYMBOL(smp_call_function);
 
 static void
 ipi_imb(void *ignored)
@@ -807,7 +657,7 @@ void
 smp_imb(void)
 {
         /* Must wait other processors to flush their icache before continue. */
-        if (on_each_cpu(ipi_imb, NULL, 1, 1))
+        if (on_each_cpu(ipi_imb, NULL, 1))
                 printk(KERN_CRIT "smp_imb: timed out\n");
 }
 EXPORT_SYMBOL(smp_imb);
@@ -823,7 +673,7 @@ flush_tlb_all(void)
 {
         /* Although we don't have any data to pass, we do want to
            synchronize with the other processors.  */
-        if (on_each_cpu(ipi_flush_tlb_all, NULL, 1, 1)) {
+        if (on_each_cpu(ipi_flush_tlb_all, NULL, 1)) {
                 printk(KERN_CRIT "flush_tlb_all: timed out\n");
         }
 }
@@ -860,7 +710,7 @@ flush_tlb_mm(struct mm_struct *mm)
                 }
         }
 
-        if (smp_call_function(ipi_flush_tlb_mm, mm, 1, 1)) {
+        if (smp_call_function(ipi_flush_tlb_mm, mm, 1)) {
                 printk(KERN_CRIT "flush_tlb_mm: timed out\n");
         }
 
@@ -913,7 +763,7 @@ flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
         data.mm = mm;
         data.addr = addr;
 
-        if (smp_call_function(ipi_flush_tlb_page, &data, 1, 1)) {
+        if (smp_call_function(ipi_flush_tlb_page, &data, 1)) {
                 printk(KERN_CRIT "flush_tlb_page: timed out\n");
         }
 
@@ -965,7 +815,7 @@ flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
                 }
         }
 
-        if (smp_call_function(ipi_flush_icache_page, mm, 1, 1)) {
+        if (smp_call_function(ipi_flush_icache_page, mm, 1)) {
                 printk(KERN_CRIT "flush_icache_page: timed out\n");
         }
 
diff --git a/arch/alpha/oprofile/common.c b/arch/alpha/oprofile/common.c
index 9fc0eeb4f0a..7c3d5ec6ec6 100644
--- a/arch/alpha/oprofile/common.c
+++ b/arch/alpha/oprofile/common.c
@@ -65,7 +65,7 @@ op_axp_setup(void)
         model->reg_setup(&reg, ctr, &sys);
 
         /* Configure the registers on all cpus.  */
-        (void)smp_call_function(model->cpu_setup, &reg, 0, 1);
+        (void)smp_call_function(model->cpu_setup, &reg, 1);
         model->cpu_setup(&reg);
         return 0;
 }
@@ -86,7 +86,7 @@ op_axp_cpu_start(void *dummy)
 static int
 op_axp_start(void)
 {
-        (void)smp_call_function(op_axp_cpu_start, NULL, 0, 1);
+        (void)smp_call_function(op_axp_cpu_start, NULL, 1);
         op_axp_cpu_start(NULL);
         return 0;
 }
@@ -101,7 +101,7 @@ op_axp_cpu_stop(void *dummy)
 static void
 op_axp_stop(void)
 {
-        (void)smp_call_function(op_axp_cpu_stop, NULL, 0, 1);
+        (void)smp_call_function(op_axp_cpu_stop, NULL, 1);
         op_axp_cpu_stop(NULL);
 }
 
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 258f1369fb0..c7ad324ddf2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -701,6 +701,7 @@ source "kernel/time/Kconfig"
 config SMP
         bool "Symmetric Multi-Processing (EXPERIMENTAL)"
         depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
+        select USE_GENERIC_SMP_HELPERS
         help
           This enables support for systems with more than one CPU. If you have
           a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index eefae1de334..5a7c09564d1 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -68,20 +68,10 @@ enum ipi_msg_type {
         IPI_TIMER,
         IPI_RESCHEDULE,
         IPI_CALL_FUNC,
+        IPI_CALL_FUNC_SINGLE,
         IPI_CPU_STOP,
 };
 
-struct smp_call_struct {
-        void (*func)(void *info);
-        void *info;
-        int wait;
-        cpumask_t pending;
-        cpumask_t unfinished;
-};
-
-static struct smp_call_struct * volatile smp_call_function_data;
-static DEFINE_SPINLOCK(smp_call_function_lock);
-
 int __cpuinit __cpu_up(unsigned int cpu)
 {
         struct cpuinfo_arm *ci = &per_cpu(cpu_data, cpu);
@@ -366,114 +356,15 @@ static void send_ipi_message(cpumask_t callmap, enum ipi_msg_type msg)
         local_irq_restore(flags);
 }
 
-/*
- * You must not call this function with disabled interrupts, from a
- * hardware interrupt handler, nor from a bottom half handler.
- */
-static int smp_call_function_on_cpu(void (*func)(void *info), void *info,
-                                    int retry, int wait, cpumask_t callmap)
-{
-        struct smp_call_struct data;
-        unsigned long timeout;
-        int ret = 0;
-
-        data.func = func;
-        data.info = info;
-        data.wait = wait;
-
-        cpu_clear(smp_processor_id(), callmap);
-        if (cpus_empty(callmap))
-                goto out;
-
-        data.pending = callmap;
-        if (wait)
-                data.unfinished = callmap;
-
-        /*
-         * try to get the mutex on smp_call_function_data
-         */
-        spin_lock(&smp_call_function_lock);
-        smp_call_function_data = &data;
-
-        send_ipi_message(callmap, IPI_CALL_FUNC);
-
-        timeout = jiffies + HZ;
-        while (!cpus_empty(data.pending) && time_before(jiffies, timeout))
-                barrier();
-
-        /*
-         * did we time out?
-         */
-        if (!cpus_empty(data.pending)) {
-                /*
-                 * this may be causing our panic - report it
-                 */
-                printk(KERN_CRIT
-                       "CPU%u: smp_call_function timeout for %p(%p)\n"
-                       "      callmap %lx pending %lx, %swait\n",
-                       smp_processor_id(), func, info, *cpus_addr(callmap),
-                       *cpus_addr(data.pending), wait ? "" : "no ");
-
-                /*
-                 * TRACE
-                 */
-                timeout = jiffies + (5 * HZ);
-                while (!cpus_empty(data.pending) && time_before(jiffies, timeout))
-                        barrier();
-
-                if (cpus_empty(data.pending))
-                        printk(KERN_CRIT "     RESOLVED\n");
-                else
-                        printk(KERN_CRIT "     STILL STUCK\n");
-        }
-
-        /*
-         * whatever happened, we're done with the data, so release it
-         */
-        smp_call_function_data = NULL;
-        spin_unlock(&smp_call_function_lock);
-
-        if (!cpus_empty(data.pending)) {
-                ret = -ETIMEDOUT;
-                goto out;
-        }
-
-        if (wait)
-                while (!cpus_empty(data.unfinished))
-                        barrier();
- out:
-
-        return 0;
-}
-
-int smp_call_function(void (*func)(void *info), void *info, int retry,
-                      int wait)
+void arch_send_call_function_ipi(cpumask_t mask)
 {
-        return smp_call_function_on_cpu(func, info, retry, wait,
-                                        cpu_online_map);
+        send_ipi_message(mask, IPI_CALL_FUNC);
 }
-EXPORT_SYMBOL_GPL(smp_call_function);
 
-int smp_call_function_single(int cpu, void (*func)(void *info), void *info,
-                             int retry, int wait)
+void arch_send_call_function_single_ipi(int cpu)
 {
-        /* prevent preemption and reschedule on another processor */
-        int current_cpu = get_cpu();
-        int ret = 0;
-
-        if (cpu == current_cpu) {
-                local_irq_disable();
-                func(info);
-                local_irq_enable();
-        } else
-                ret = smp_call_function_on_cpu(func, info, retry, wait,
-                                               cpumask_of_cpu(cpu));
-
-        put_cpu();
-
-        return ret;
+        send_ipi_message(cpumask_of_cpu(cpu), IPI_CALL_FUNC_SINGLE);
 }
-EXPORT_SYMBOL_GPL(smp_call_function_single);
 
 void show_ipi_list(struct seq_file *p)
 {
@@ -521,27 +412,6 @@ asmlinkage void __exception do_local_timer(struct pt_regs *regs)
 }
 #endif
 
-/*
- * ipi_call_function - handle IPI from smp_call_function()
- *
- * Note that we copy data out of the cross-call structure and then
- * let the caller know that we're here and have done with their data
- */
-static void ipi_call_function(unsigned int cpu)
-{
-        struct smp_call_struct *data = smp_call_function_data;
-        void (*func)(void *info) = data->func;
-        void *info = data->info;
-        int wait = data->wait;
-
-        cpu_clear(cpu, data->pending);
-
-        func(info);
-
-        if (wait)
-                cpu_clear(cpu, data->unfinished);
-}
-
 static DEFINE_SPINLOCK(stop_lock);
 
 /*
@@ -611,7 +481,11 @@ asmlinkage void __exception do_IPI(struct pt_regs *regs)
                                 break;
 
                         case IPI_CALL_FUNC:
-                                ipi_call_function(cpu);
+                                generic_smp_call_function_interrupt();
+                                break;
+
+                        case IPI_CALL_FUNC_SINGLE:
+                                generic_smp_call_function_single_interrupt();
                                 break;
 
                         case IPI_CPU_STOP:
@@ -662,14 +536,13 @@ int setup_profiling_timer(unsigned int multiplier)
 }
 
 static int
-on_each_cpu_mask(void (*func)(void *), void *info, int retry, int wait,
-                 cpumask_t mask)
+on_each_cpu_mask(void (*func)(void *), void *info, int wait, cpumask_t mask)
 {
         int ret = 0;
 
         preempt_disable();
 
-        ret = smp_call_function_on_cpu(func, info, retry, wait, mask);
+        ret = smp_call_function_mask(mask, func, info, wait);
         if (cpu_isset(smp_processor_id(), mask))
                 func(info);
 
@@ -731,14 +604,14 @@ static inline void ipi_flush_tlb_kernel_range(void *arg)
 
 void flush_tlb_all(void)
 {
-        on_each_cpu(ipi_flush_tlb_all, NULL, 1, 1);
+        on_each_cpu(ipi_flush_tlb_all, NULL, 1);
 }
 
 void flush_tlb_mm(struct mm_struct *mm)
 {
         cpumask_t mask = mm->cpu_vm_mask;
 
-        on_each_cpu_mask(ipi_flush_tlb_mm, mm, 1, 1, mask);
+        on_each_cpu_mask(ipi_flush_tlb_mm, mm, 1, mask);
 }
 
 void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
@@ -749,7 +622,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
         ta.ta_vma = vma;
         ta.ta_start = uaddr;
 
-        on_each_cpu_mask(ipi_flush_tlb_page, &ta, 1, 1, mask);
+        on_each_cpu_mask(ipi_flush_tlb_page, &ta, 1, mask);
 }
 
 void flush_tlb_kernel_page(unsigned long kaddr)
@@ -758,7 +631,7 @@ void flush_tlb_kernel_page(unsigned long kaddr)
 
         ta.ta_start = kaddr;
 
-        on_each_cpu(ipi_flush_tlb_kernel_page, &ta, 1, 1);
+        on_each_cpu(ipi_flush_tlb_kernel_page, &ta, 1);
 }
 
 void flush_tlb_range(struct vm_area_struct *vma,
@@ -771,7 +644,7 @@ void flush_tlb_range(struct vm_area_struct *vma,
         ta.ta_start = start;
         ta.ta_end = end;
 
-        on_each_cpu_mask(ipi_flush_tlb_range, &ta, 1, 1, mask);
+        on_each_cpu_mask(ipi_flush_tlb_range, &ta, 1, mask);
 }
 
 void flush_tlb_kernel_range(unsigned long start, unsigned long end)
@@ -781,5 +654,5 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
         ta.ta_start = start;
         ta.ta_end = end;
 
-        on_each_cpu(ipi_flush_tlb_kernel_range, &ta, 1, 1);
+        on_each_cpu(ipi_flush_tlb_kernel_range, &ta, 1);
 }
diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c
index 90e0c35ae60..fc650f64df4 100644
--- a/arch/arm/kernel/stacktrace.c
+++ b/arch/arm/kernel/stacktrace.c
@@ -92,4 +92,5 @@ void save_stack_trace(struct stack_trace *trace)
 {
         save_stack_trace_tsk(current, trace);
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
 #endif
diff --git a/arch/arm/oprofile/op_model_mpcore.c b/arch/arm/oprofile/op_model_mpcore.c
index 74fae604565..4458705021e 100644
--- a/arch/arm/oprofile/op_model_mpcore.c
+++ b/arch/arm/oprofile/op_model_mpcore.c
@@ -201,7 +201,7 @@ static int em_call_function(int (*fn)(void))
         data.ret = 0;
 
         preempt_disable();
-        smp_call_function(em_func, &data, 1, 1);
+        smp_call_function(em_func, &data, 1);
         em_func(&data);
         preempt_enable();
 
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 32455c633f1..c0d2c9bb952 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -352,7 +352,7 @@ static int __init vfp_init(void)
         else if (vfpsid & FPSID_NODOUBLE) {
                 printk("no double precision support\n");
         } else {
-                smp_call_function(vfp_enable, NULL, 1, 1);
+                smp_call_function(vfp_enable, NULL, 1);
 
                 VFP_arch = (vfpsid & FPSID_ARCH_MASK) >> FPSID_ARCH_BIT;  /* Extract the architecture version */
                 printk("implementor %02x architecture %d part %02x variant %x rev %x\n",
diff --git a/arch/avr32/kernel/stacktrace.c b/arch/avr32/kernel/stacktrace.c
index 9a68190bbff..f4bdb448049 100644
--- a/arch/avr32/kernel/stacktrace.c
+++ b/arch/avr32/kernel/stacktrace.c
@@ -51,3 +51,4 @@ void save_stack_trace(struct stack_trace *trace)
                 fp = frame->fp;
         }
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c
index a9c3334e46c..952a24b2f5a 100644
--- a/arch/cris/arch-v32/kernel/smp.c
+++ b/arch/cris/arch-v32/kernel/smp.c
@@ -194,7 +194,7 @@ void stop_this_cpu(void* dummy)
 /* Other calls */
 void smp_send_stop(void)
 {
-        smp_call_function(stop_this_cpu, NULL, 1, 0);
+        smp_call_function(stop_this_cpu, NULL, 0);
 }
 
 int setup_profiling_timer(unsigned int multiplier)
@@ -316,8 +316,7 @@ int send_ipi(int vector, int wait, cpumask_t cpu_mask)
  * You must not call this function with disabled interrupts or from a
  * hardware interrupt handler or from a bottom half handler.
  */
-int smp_call_function(void (*func)(void *info), void *info,
-                      int nonatomic, int wait)
+int smp_call_function(void (*func)(void *info), void *info, int wait)
 {
         cpumask_t cpu_mask = CPU_MASK_ALL;
         struct call_data_struct data;
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 16be41446b5..18bcc10903b 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -303,6 +303,7 @@ config VIRT_CPU_ACCOUNTING
 
 config SMP
         bool "Symmetric multi-processing support"
+        select USE_GENERIC_SMP_HELPERS
         help
           This enables support for systems with more than one CPU. If you have
           a system with only one CPU, say N.  If you have a system with more
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 705176b434b..7dd96c12717 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -707,7 +707,7 @@ ia64_mca_cmc_vector_enable (void *dummy)
 static void
 ia64_mca_cmc_vector_disable_keventd(struct work_struct *unused)
 {
-        on_each_cpu(ia64_mca_cmc_vector_disable, NULL, 1, 0);
+        on_each_cpu(ia64_mca_cmc_vector_disable, NULL, 0);
 }
 
 /*
@@ -719,7 +719,7 @@ ia64_mca_cmc_vector_disable_keventd(struct work_struct *unused)
 static void
 ia64_mca_cmc_vector_enable_keventd(struct work_struct *unused)
 {
-        on_each_cpu(ia64_mca_cmc_vector_enable, NULL, 1, 0);
+        on_each_cpu(ia64_mca_cmc_vector_enable, NULL, 0);
 }
 
 /*
@@ -1881,7 +1881,7 @@ static int __cpuinit mca_cpu_callback(struct notifier_block *nfb,
         case CPU_ONLINE:
         case CPU_ONLINE_FROZEN:
                 smp_call_function_single(hotcpu, ia64_mca_cmc_vector_adjust,
-                                         NULL, 1, 0);
+                                         NULL, 0);
                 break;
         }
         return NOTIFY_OK;
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
index 9dc00f7fe10..e5c57f413ca 100644
--- a/arch/ia64/kernel/palinfo.c
+++ b/arch/ia64/kernel/palinfo.c
@@ -921,7 +921,7 @@ int palinfo_handle_smp(pal_func_cpu_u_t *f, char *page)
 
 
         /* will send IPI to other CPU and wait for completion of remote call */
-        if ((ret=smp_call_function_single(f->req_cpu, palinfo_smp_call, &ptr, 0, 1))) {
+        if ((ret=smp_call_function_single(f->req_cpu, palinfo_smp_call, &ptr, 1))) {
                 printk(KERN_ERR "palinfo: remote CPU call from %d to %d on function %d: "
                        "error %d\n", smp_processor_id(), f->req_cpu, f->func_id, ret);
                 return 0;
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 7714a97b010..19d4493c619 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -1820,7 +1820,7 @@ pfm_syswide_cleanup_other_cpu(pfm_context_t *ctx)
         int ret;
 
         DPRINT(("calling CPU%d for cleanup\n", ctx->ctx_cpu));
-        ret = smp_call_function_single(ctx->ctx_cpu, pfm_syswide_force_stop, ctx, 0, 1);
+        ret = smp_call_function_single(ctx->ctx_cpu, pfm_syswide_force_stop, ctx, 1);
         DPRINT(("called CPU%d for cleanup ret=%d\n", ctx->ctx_cpu, ret));
 }
 #endif /* CONFIG_SMP */
@@ -6508,7 +6508,7 @@ pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *hdl)
         }
 
         /* save the current system wide pmu states */
-        ret = on_each_cpu(pfm_alt_save_pmu_state, NULL, 0, 1);
+        ret = on_each_cpu(pfm_alt_save_pmu_state, NULL, 1);
         if (ret) {
                 DPRINT(("on_each_cpu() failed: %d\n", ret));
                 goto cleanup_reserve;
@@ -6553,7 +6553,7 @@ pfm_remove_alt_pmu_interrupt(pfm_intr_handler_desc_t *hdl)
 
         pfm_alt_intr_handler = NULL;
 
-        ret = on_each_cpu(pfm_alt_restore_pmu_state, NULL, 0, 1);
+        ret = on_each_cpu(pfm_alt_restore_pmu_state, NULL, 1);
         if (ret) {
                 DPRINT(("on_each_cpu() failed: %d\n", ret));
         }
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index a3a34b4eb03..fabaf08d9a6 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -286,7 +286,7 @@ void cpu_idle_wait(void)
 {
         smp_mb();
         /* kick all the CPUs so that they exit out of pm_idle */
-        smp_call_function(do_nothing, NULL, 0, 1);
+        smp_call_function(do_nothing, NULL, 1);
 }
 EXPORT_SYMBOL_GPL(cpu_idle_wait);
 
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 983296f1c81..3676468612b 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -60,25 +60,9 @@ static struct local_tlb_flush_counts {
 
 static DEFINE_PER_CPU(unsigned int, shadow_flush_counts[NR_CPUS]) ____cacheline_aligned;
 
-
-/*
- * Structure and data for smp_call_function(). This is designed to minimise static memory
- * requirements. It also looks cleaner.
- */
-static  __cacheline_aligned DEFINE_SPINLOCK(call_lock);
-
-struct call_data_struct {
-        void (*func) (void *info);
-        void *info;
-        long wait;
-        atomic_t started;
-        atomic_t finished;
-};
-
-static volatile struct call_data_struct *call_data;
-
 #define IPI_CALL_FUNC           0
 #define IPI_CPU_STOP            1
+#define IPI_CALL_FUNC_SINGLE    2
 #define IPI_KDUMP_CPU_STOP      3
 
 /* This needs to be cacheline aligned because it is written to by *other* CPUs.  */
@@ -86,43 +70,6 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(u64, ipi_operation);
 
 extern void cpu_halt (void);
 
-void
-lock_ipi_calllock(void)
-{
-        spin_lock_irq(&call_lock);
-}
-
-void
-unlock_ipi_calllock(void)
-{
-        spin_unlock_irq(&call_lock);
-}
-
-static inline void
-handle_call_data(void)
-{
-        struct call_data_struct *data;
-        void (*func)(void *info);
-        void *info;
-        int wait;
-
-        /* release the 'pointer lock' */
-        data = (struct call_data_struct *)call_data;
-        func = data->func;
-        info = data->info;
-        wait = data->wait;
-
-        mb();
-        atomic_inc(&data->started);
-        /* At this point the structure may be gone unless wait is true. */
-        (*func)(info);
-
-        /* Notify the sending CPU that the task is done. */
-        mb();
-        if (wait)
-                atomic_inc(&data->finished);
-}
-
 static void
 stop_this_cpu(void)
 {
@@ -163,13 +110,15 @@ handle_IPI (int irq, void *dev_id)
                         ops &= ~(1 << which);
 
                         switch (which) {
-                        case IPI_CALL_FUNC:
-                                handle_call_data();
-                                break;
-
                         case IPI_CPU_STOP:
                                 stop_this_cpu();
                                 break;
+                        case IPI_CALL_FUNC:
+                                generic_smp_call_function_interrupt();
+                                break;
+                        case IPI_CALL_FUNC_SINGLE:
+                                generic_smp_call_function_single_interrupt();
+                                break;
 #ifdef CONFIG_KEXEC
                         case IPI_KDUMP_CPU_STOP:
                                 unw_init_running(kdump_cpu_freeze, NULL);
@@ -187,6 +136,8 @@ handle_IPI (int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
+
+
 /*
  * Called with preemption disabled.
  */
@@ -334,7 +285,7 @@ smp_flush_tlb_cpumask(cpumask_t xcpumask)
 void
 smp_flush_tlb_all (void)
 {
-        on_each_cpu((void (*)(void *))local_flush_tlb_all, NULL, 1, 1);
+        on_each_cpu((void (*)(void *))local_flush_tlb_all, NULL, 1);
 }
 
 void
@@ -357,193 +308,18 @@ smp_flush_tlb_mm (struct mm_struct *mm)
          * anyhow, and once a CPU is interrupted, the cost of local_flush_tlb_all() is
          * rather trivial.
          */
-        on_each_cpu((void (*)(void *))local_finish_flush_tlb_mm, mm, 1, 1);
+        on_each_cpu((void (*)(void *))local_finish_flush_tlb_mm, mm, 1);
 }
 
-/*
- * Run a function on a specific CPU
- *  <func>      The function to run. This must be fast and non-blocking.
- *  <info>      An arbitrary pointer to pass to the function.
- *  <nonatomic> Currently unused.
- *  <wait>      If true, wait until function has completed on other CPUs.
- *  [RETURNS]   0 on success, else a negative status code.
- *
- * Does not return until the remote CPU is nearly ready to execute <func>
- * or is or has executed.
- */
-
-int
-smp_call_function_single (int cpuid, void (*func) (void *info), void *info, int nonatomic,
-                          int wait)
-{
-        struct call_data_struct data;
-        int cpus = 1;
-        int me = get_cpu(); /* prevent preemption and reschedule on another processor */
-
-        if (cpuid == me) {
-                local_irq_disable();
-                func(info);
-                local_irq_enable();
-                put_cpu();
-                return 0;
-        }
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        spin_lock_bh(&call_lock);
-
-        call_data = &data;
-        mb();   /* ensure store to call_data precedes setting of IPI_CALL_FUNC */
-        send_IPI_single(cpuid, IPI_CALL_FUNC);
-
-        /* Wait for response */
-        while (atomic_read(&data.started) != cpus)
-                cpu_relax();
-
-        if (wait)
-                while (atomic_read(&data.finished) != cpus)
-                        cpu_relax();
-        call_data = NULL;
-
-        spin_unlock_bh(&call_lock);
-        put_cpu();
-        return 0;
-}
-EXPORT_SYMBOL(smp_call_function_single);
-
-/**
- * smp_call_function_mask(): Run a function on a set of other CPUs.
- * <mask>       The set of cpus to run on.  Must not include the current cpu.
- * <func>       The function to run. This must be fast and non-blocking.
- * <info>       An arbitrary pointer to pass to the function.
- * <wait>       If true, wait (atomically) until function
- *              has completed on other CPUs.
- *
- * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-int smp_call_function_mask(cpumask_t mask,
-                           void (*func)(void *), void *info,
-                           int wait)
+void arch_send_call_function_single_ipi(int cpu)
 {
-        struct call_data_struct data;
-        cpumask_t allbutself;
-        int cpus;
-
-        spin_lock(&call_lock);
-        allbutself = cpu_online_map;
-        cpu_clear(smp_processor_id(), allbutself);
-
-        cpus_and(mask, mask, allbutself);
-        cpus = cpus_weight(mask);
-        if (!cpus) {
-                spin_unlock(&call_lock);
-                return 0;
-        }
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        call_data = &data;
-        mb(); /* ensure store to call_data precedes setting of IPI_CALL_FUNC*/
-
-        /* Send a message to other CPUs */
-        if (cpus_equal(mask, allbutself))
-                send_IPI_allbutself(IPI_CALL_FUNC);
-        else
-                send_IPI_mask(mask, IPI_CALL_FUNC);
-
-        /* Wait for response */
-        while (atomic_read(&data.started) != cpus)
-                cpu_relax();
-
-        if (wait)
-                while (atomic_read(&data.finished) != cpus)
-                        cpu_relax();
-        call_data = NULL;
-
-        spin_unlock(&call_lock);
-        return 0;
-
+        send_IPI_single(cpu, IPI_CALL_FUNC_SINGLE);
 }
-EXPORT_SYMBOL(smp_call_function_mask);
 
-/*
- * this function sends a 'generic call function' IPI to all other CPUs
- * in the system.
- */
-
-/*
- *  [SUMMARY]   Run a function on all other CPUs.
- *  <func>      The function to run. This must be fast and non-blocking.
- *  <info>      An arbitrary pointer to pass to the function.
- *  <nonatomic> currently unused.
- *  <wait>      If true, wait (atomically) until function has completed on other CPUs.
- *  [RETURNS]   0 on success, else a negative status code.
- *
- * Does not return until remote CPUs are nearly ready to execute <func> or are or have
- * executed.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-int
-smp_call_function (void (*func) (void *info), void *info, int nonatomic, int wait)
+void arch_send_call_function_ipi(cpumask_t mask)
 {
-        struct call_data_struct data;
-        int cpus;
-
-        spin_lock(&call_lock);
-        cpus = num_online_cpus() - 1;
-        if (!cpus) {
-                spin_unlock(&call_lock);
-                return 0;
-        }
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        call_data = &data;
-        mb();   /* ensure store to call_data precedes setting of IPI_CALL_FUNC */
-        send_IPI_allbutself(IPI_CALL_FUNC);
-
-        /* Wait for response */
-        while (atomic_read(&data.started) != cpus)
-                cpu_relax();
-
-        if (wait)
-                while (atomic_read(&data.finished) != cpus)
-                        cpu_relax();
-        call_data = NULL;
-
-        spin_unlock(&call_lock);
-        return 0;
+        send_IPI_mask(mask, IPI_CALL_FUNC);
 }
-EXPORT_SYMBOL(smp_call_function);
 
 /*
  * this function calls the 'stop' function on all other CPUs in the system.
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index d7ad42b77d4..9d1d429c6c5 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -317,7 +317,7 @@ ia64_sync_itc (unsigned int master)
 
         go[MASTER] = 1;
 
-        if (smp_call_function_single(master, sync_master, NULL, 1, 0) < 0) {
+        if (smp_call_function_single(master, sync_master, NULL, 0) < 0) {
                 printk(KERN_ERR "sync_itc: failed to get attention of CPU %u!\n", master);
                 return;
         }
@@ -395,14 +395,14 @@ smp_callin (void)
 
         fix_b0_for_bsp();
 
-        lock_ipi_calllock();
+        ipi_call_lock_irq();
         spin_lock(&vector_lock);
         /* Setup the per cpu irq handling data structures */
         __setup_vector_irq(cpuid);
         cpu_set(cpuid, cpu_online_map);
         per_cpu(cpu_state, cpuid) = CPU_ONLINE;
         spin_unlock(&vector_lock);
-        unlock_ipi_calllock();
+        ipi_call_unlock_irq();
 
         smp_setup_percpu_timer();
 
diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c
index e77995a6e3e..8eff8c1d40a 100644
--- a/arch/ia64/kernel/uncached.c
+++ b/arch/ia64/kernel/uncached.c
@@ -123,8 +123,7 @@ static int uncached_add_chunk(struct uncached_pool *uc_pool, int nid)
         status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL);
         if (status == PAL_VISIBILITY_OK_REMOTE_NEEDED) {
                 atomic_set(&uc_pool->status, 0);
-                status = smp_call_function(uncached_ipi_visibility, uc_pool,
-                                           0, 1);
+                status = smp_call_function(uncached_ipi_visibility, uc_pool, 1);
                 if (status || atomic_read(&uc_pool->status))
                         goto failed;
         } else if (status != PAL_VISIBILITY_OK)
@@ -146,7 +145,7 @@ static int uncached_add_chunk(struct uncached_pool *uc_pool, int nid)
         if (status != PAL_STATUS_SUCCESS)
                 goto failed;
         atomic_set(&uc_pool->status, 0);
-        status = smp_call_function(uncached_ipi_mc_drain, uc_pool, 0, 1);
+        status = smp_call_function(uncached_ipi_mc_drain, uc_pool, 1);
         if (status || atomic_read(&uc_pool->status))
                 goto failed;
 
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index 53351c3cd7b..96c31b4180c 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -11,6 +11,7 @@
 #include <linux/irq.h>
 #include <linux/spinlock.h>
 #include <linux/init.h>
+#include <linux/rculist.h>
 #include <asm/sn/addrs.h>
 #include <asm/sn/arch.h>
 #include <asm/sn/intr.h>
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index 8cc0c4753d8..636588e7e06 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -629,7 +629,7 @@ static int sn_hwperf_op_cpu(struct sn_hwperf_op_info *op_info)
                 if (use_ipi) {
                         /* use an interprocessor interrupt to call SAL */
                         smp_call_function_single(cpu, sn_hwperf_call_sal,
-                                op_info, 1, 1);
+                                op_info, 1);
                 }
                 else {
                         /* migrate the task before calling SAL */ 
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index de153de2ea9..a5f864c445b 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -296,6 +296,7 @@ config PREEMPT
 
 config SMP
         bool "Symmetric multi-processing support"
+        select USE_GENERIC_SMP_HELPERS
         ---help---
           This enables support for systems with more than one CPU. If you have
           a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/m32r/kernel/m32r_ksyms.c b/arch/m32r/kernel/m32r_ksyms.c
index e6709fe950b..16bcb189a38 100644
--- a/arch/m32r/kernel/m32r_ksyms.c
+++ b/arch/m32r/kernel/m32r_ksyms.c
@@ -43,9 +43,6 @@ EXPORT_SYMBOL(dcache_dummy);
 #endif
 EXPORT_SYMBOL(cpu_data);
 
-/* Global SMP stuff */
-EXPORT_SYMBOL(smp_call_function);
-
 /* TLB flushing */
 EXPORT_SYMBOL(smp_flush_tlb_page);
 #endif
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index c837bc13b01..7577f971ea4 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -35,22 +35,6 @@
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
 
 /*
- * Structure and data for smp_call_function(). This is designed to minimise
- * static memory requirements. It also looks cleaner.
- */
-static DEFINE_SPINLOCK(call_lock);
-
-struct call_data_struct {
-        void (*func) (void *info);
-        void *info;
-        atomic_t started;
-        atomic_t finished;
-        int wait;
-} __attribute__ ((__aligned__(SMP_CACHE_BYTES)));
-
-static struct call_data_struct *call_data;
-
-/*
  * For flush_cache_all()
  */
 static DEFINE_SPINLOCK(flushcache_lock);
@@ -96,9 +80,6 @@ void smp_invalidate_interrupt(void);
 void smp_send_stop(void);
 static void stop_this_cpu(void *);
 
-int smp_call_function(void (*) (void *), void *, int, int);
-void smp_call_function_interrupt(void);
-
 void smp_send_timer(void);
 void smp_ipi_timer_interrupt(struct pt_regs *);
 void smp_local_timer_interrupt(void);
@@ -231,7 +212,7 @@ void smp_flush_tlb_all(void)
         local_irq_save(flags);
         __flush_tlb_all();
         local_irq_restore(flags);
-        smp_call_function(flush_tlb_all_ipi, NULL, 1, 1);
+        smp_call_function(flush_tlb_all_ipi, NULL, 1);
         preempt_enable();
 }
 
@@ -524,7 +505,7 @@ void smp_invalidate_interrupt(void)
  *==========================================================================*/
 void smp_send_stop(void)
 {
-        smp_call_function(stop_this_cpu, NULL, 1, 0);
+        smp_call_function(stop_this_cpu, NULL, 0);
 }
 
 /*==========================================================================*
@@ -565,86 +546,14 @@ static void stop_this_cpu(void *dummy)
         for ( ; ; );
 }
 
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-/* Call function Routines                                                    */
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-
-/*==========================================================================*
- * Name:         smp_call_function
- *
- * Description:  This routine sends a 'CALL_FUNCTION_IPI' to all other CPUs
- *               in the system.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    *func - The function to run. This must be fast and
- *                       non-blocking.
- *               *info - An arbitrary pointer to pass to the function.
- *               nonatomic - currently unused.
- *               wait - If true, wait (atomically) until function has
- *                      completed on other CPUs.
- *
- * Returns:      0 on success, else a negative status code. Does not return
- *               until remote CPUs are nearly ready to execute <<func>> or
- *               are or have executed.
- *
- * Cautions:     You must not call this function with disabled interrupts or
- *               from a hardware interrupt handler, you may call it from a
- *               bottom half handler.
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
-        int wait)
+void arch_send_call_function_ipi(cpumask_t mask)
 {
-        struct call_data_struct data;
-        int cpus;
-
-#ifdef DEBUG_SMP
-        unsigned long flags;
-        __save_flags(flags);
-        if (!(flags & 0x0040))  /* Interrupt Disable NONONO */
-                BUG();
-#endif /* DEBUG_SMP */
-
-        /* Holding any lock stops cpus from going down. */
-        spin_lock(&call_lock);
-        cpus = num_online_cpus() - 1;
-
-        if (!cpus) {
-                spin_unlock(&call_lock);
-                return 0;
-        }
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        call_data = &data;
-        mb();
-
-        /* Send a message to all other CPUs and wait for them to respond */
-        send_IPI_allbutself(CALL_FUNCTION_IPI, 0);
-
-        /* Wait for response */
-        while (atomic_read(&data.started) != cpus)
-                barrier();
-
-        if (wait)
-                while (atomic_read(&data.finished) != cpus)
-                        barrier();
-        spin_unlock(&call_lock);
+        send_IPI_mask(mask, CALL_FUNCTION_IPI, 0);
+}
 
-        return 0;
+void arch_send_call_function_single_ipi(int cpu)
+{
+        send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNC_SINGLE_IPI, 0);
 }
 
 /*==========================================================================*
@@ -666,27 +575,16 @@ int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
  *==========================================================================*/
 void smp_call_function_interrupt(void)
 {
-        void (*func) (void *info) = call_data->func;
-        void *info = call_data->info;
-        int wait = call_data->wait;
-
-        /*
-         * Notify initiating CPU that I've grabbed the data and am
-         * about to execute the function
-         */
-        mb();
-        atomic_inc(&call_data->started);
-        /*
-         * At this point the info structure may be out of scope unless wait==1
-         */
         irq_enter();
-        (*func)(info);
+        generic_smp_call_function_interrupt();
         irq_exit();
+}
 
-        if (wait) {
-                mb();
-                atomic_inc(&call_data->finished);
-        }
+void smp_call_function_single_interrupt(void)
+{
+        irq_enter();
+        generic_smp_call_function_single_interrupt();
+        irq_exit();
 }
 
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 89ba4a0b5d5..46159a4e644 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -40,6 +40,7 @@ extern void smp_invalidate_interrupt(void);
 extern void smp_call_function_interrupt(void);
 extern void smp_ipi_timer_interrupt(void);
 extern void smp_flush_cache_all_interrupt(void);
+extern void smp_call_function_single_interrupt(void);
 
 /*
  * for Boot AP function
@@ -103,7 +104,7 @@ void	set_eit_vector_entries(void)
         eit_vector[186] = (unsigned long)smp_call_function_interrupt;
         eit_vector[187] = (unsigned long)smp_ipi_timer_interrupt;
         eit_vector[188] = (unsigned long)smp_flush_cache_all_interrupt;
-        eit_vector[189] = 0;
+        eit_vector[189] = (unsigned long)smp_call_function_single_interrupt;
         eit_vector[190] = 0;
         eit_vector[191] = 0;
 #endif
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 24c5dee9176..d21df5f1b1f 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -181,38 +181,6 @@ config LEMOTE_FULONG
           Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
           an FPGA northbridge
 
-config MIPS_ATLAS
-        bool "MIPS Atlas board"
-        select BOOT_ELF32
-        select BOOT_RAW
-        select CEVT_R4K
-        select CSRC_R4K
-        select DMA_NONCOHERENT
-        select SYS_HAS_EARLY_PRINTK
-        select IRQ_CPU
-        select HW_HAS_PCI
-        select MIPS_BOARDS_GEN
-        select MIPS_BONITO64
-        select PCI_GT64XXX_PCI0
-        select MIPS_MSC
-        select RM7000_CPU_SCACHE
-        select SWAP_IO_SPACE
-        select SYS_HAS_CPU_MIPS32_R1
-        select SYS_HAS_CPU_MIPS32_R2
-        select SYS_HAS_CPU_MIPS64_R1
-        select SYS_HAS_CPU_NEVADA
-        select SYS_HAS_CPU_RM7000
-        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL
-        select SYS_SUPPORTS_BIG_ENDIAN
-        select SYS_SUPPORTS_LITTLE_ENDIAN
-        select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
-        select SYS_SUPPORTS_SMARTMIPS
-        select GENERIC_HARDIRQS_NO__DO_IRQ
-        help
-          This enables support for the MIPS Technologies Atlas evaluation
-          board.
-
 config MIPS_MALTA
         bool "MIPS Malta board"
         select ARCH_MAY_HAVE_PC_FDC
@@ -249,26 +217,6 @@ config MIPS_MALTA
           This enables support for the MIPS Technologies Malta evaluation
           board.
 
-config MIPS_SEAD
-        bool "MIPS SEAD board"
-        select CEVT_R4K
-        select CSRC_R4K
-        select IRQ_CPU
-        select DMA_NONCOHERENT
-        select SYS_HAS_EARLY_PRINTK
-        select MIPS_BOARDS_GEN
-        select SYS_HAS_CPU_MIPS32_R1
-        select SYS_HAS_CPU_MIPS32_R2
-        select SYS_HAS_CPU_MIPS64_R1
-        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
-        select SYS_SUPPORTS_BIG_ENDIAN
-        select SYS_SUPPORTS_LITTLE_ENDIAN
-        select SYS_SUPPORTS_SMARTMIPS
-        help
-          This enables support for the MIPS Technologies SEAD evaluation
-          board.
-
 config MIPS_SIM
         bool 'MIPS simulator (MIPSsim)'
         select CEVT_R4K
@@ -437,6 +385,8 @@ config SGI_IP28
         select SGI_HAS_DS1286
         select SGI_HAS_I8042
         select SGI_HAS_INDYDOG
+        select SGI_HAS_HAL2
+        select SGI_HAS_HAL2
         select SGI_HAS_SEEQ
         select SGI_HAS_WD93
         select SGI_HAS_ZILOG
@@ -602,65 +552,11 @@ config SNI_RM
           Technology and now in turn merged with Fujitsu.  Say Y here to
           support this machine type.
 
-config TOSHIBA_JMR3927
-        bool "Toshiba JMR-TX3927 board"
-        select CEVT_TXX9
-        select DMA_NONCOHERENT
-        select HW_HAS_PCI
-        select MIPS_TX3927
-        select IRQ_TXX9
-        select SWAP_IO_SPACE
-        select SYS_HAS_CPU_TX39XX
-        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_LITTLE_ENDIAN
-        select SYS_SUPPORTS_BIG_ENDIAN
-        select GENERIC_HARDIRQS_NO__DO_IRQ
-        select GPIO_TXX9
+config MACH_TX39XX
+        bool "Toshiba TX39 series based machines"
 
-config TOSHIBA_RBTX4927
-        bool "Toshiba RBTX49[23]7 board"
-        select CEVT_R4K
-        select CSRC_R4K
-        select CEVT_TXX9
-        select DMA_NONCOHERENT
-        select HAS_TXX9_SERIAL
-        select HW_HAS_PCI
-        select IRQ_CPU
-        select IRQ_TXX9
-        select I8259 if TOSHIBA_FPCIB0
-        select SWAP_IO_SPACE
-        select SYS_HAS_CPU_TX49XX
-        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL
-        select SYS_SUPPORTS_LITTLE_ENDIAN
-        select SYS_SUPPORTS_BIG_ENDIAN
-        select SYS_SUPPORTS_KGDB
-        select GENERIC_HARDIRQS_NO__DO_IRQ
-        help
-          This Toshiba board is based on the TX4927 processor. Say Y here to
-          support this machine type
-
-config TOSHIBA_RBTX4938
-        bool "Toshiba RBTX4938 board"
-        select CEVT_R4K
-        select CSRC_R4K
-        select CEVT_TXX9
-        select DMA_NONCOHERENT
-        select HAS_TXX9_SERIAL
-        select HW_HAS_PCI
-        select IRQ_CPU
-        select IRQ_TXX9
-        select SWAP_IO_SPACE
-        select SYS_HAS_CPU_TX49XX
-        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_LITTLE_ENDIAN
-        select SYS_SUPPORTS_BIG_ENDIAN
-        select SYS_SUPPORTS_KGDB
-        select GENERIC_HARDIRQS_NO__DO_IRQ
-        select GPIO_TXX9
-        help
-          This Toshiba board is based on the TX4938 processor. Say Y here to
-          support this machine type
+config MACH_TX49XX
+        bool "Toshiba TX49 series based machines"
 
 config WR_PPMC
         bool "Wind River PPMC board"
@@ -694,8 +590,7 @@ source "arch/mips/lasat/Kconfig"
 source "arch/mips/pmc-sierra/Kconfig"
 source "arch/mips/sgi-ip27/Kconfig"
 source "arch/mips/sibyte/Kconfig"
-source "arch/mips/tx4927/Kconfig"
-source "arch/mips/tx4938/Kconfig"
+source "arch/mips/txx9/Kconfig"
 source "arch/mips/vr41xx/Kconfig"
 
 endmenu
@@ -939,10 +834,6 @@ config PCI_GT64XXX_PCI0
 config NO_EXCEPT_FILL
         bool
 
-config MIPS_TX3927
-        bool
-        select HAS_TXX9_SERIAL
-
 config MIPS_RM9122
         bool
         select SERIAL_RM9000
@@ -979,6 +870,9 @@ config SGI_HAS_DS1286
 config SGI_HAS_INDYDOG
         bool
 
+config SGI_HAS_HAL2
+        bool
+
 config SGI_HAS_SEEQ
         bool
 
@@ -1763,6 +1657,7 @@ config SMP
         bool "Multi-Processing support"
         depends on SYS_SUPPORTS_SMP
         select IRQ_PER_CPU
+        select USE_GENERIC_SMP_HELPERS
         help
           This enables support for systems with more than one CPU. If you have
           a system with only one CPU, like most personal computers, say N. If
@@ -2064,10 +1959,6 @@ source "fs/Kconfig.binfmt"
 config TRAD_SIGNALS
         bool
 
-config BINFMT_IRIX
-        bool "Include IRIX binary compatibility"
-        depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
-
 config MIPS32_COMPAT
         bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
         depends on 64BIT
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index ad36c946ff9..356453322b4 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -14,7 +14,7 @@
 
 KBUILD_DEFCONFIG := ip22_defconfig
 
-cflags-y :=
+cflags-y := -ffunction-sections
 
 #
 # Select the object file format to substitute into the linker script.
@@ -305,36 +305,14 @@ load-$(CONFIG_LEMOTE_FULONG) +=0xffffffff80100000
 cflags-$(CONFIG_LEMOTE_FULONG) += -Iinclude/asm-mips/mach-lemote
 
 #
-# For all MIPS, Inc. eval boards
-#
-core-$(CONFIG_MIPS_BOARDS_GEN)  += arch/mips/mips-boards/generic/
-
-#
-# MIPS Atlas board
-#
-core-$(CONFIG_MIPS_ATLAS)       += arch/mips/mips-boards/atlas/
-cflags-$(CONFIG_MIPS_ATLAS)     += -Iinclude/asm-mips/mach-atlas
-cflags-$(CONFIG_MIPS_ATLAS)     += -Iinclude/asm-mips/mach-mips
-load-$(CONFIG_MIPS_ATLAS)       += 0xffffffff80100000
-all-$(CONFIG_MIPS_ATLAS)        := vmlinux.bin
-
-#
 # MIPS Malta board
 #
-core-$(CONFIG_MIPS_MALTA)       += arch/mips/mips-boards/malta/
-cflags-$(CONFIG_MIPS_MALTA)     += -Iinclude/asm-mips/mach-mips
+core-$(CONFIG_MIPS_MALTA)       += arch/mips/mti-malta/
+cflags-$(CONFIG_MIPS_MALTA)     += -Iinclude/asm-mips/mach-malta
 load-$(CONFIG_MIPS_MALTA)       += 0xffffffff80100000
 all-$(CONFIG_MIPS_MALTA)        := vmlinux.bin
 
 #
-# MIPS SEAD board
-#
-core-$(CONFIG_MIPS_SEAD)        += arch/mips/mips-boards/sead/
-cflags-$(CONFIG_MIPS_SEAD)      += -Iinclude/asm-mips/mach-mips
-load-$(CONFIG_MIPS_SEAD)        += 0xffffffff80100000
-all-$(CONFIG_MIPS_SEAD)         := vmlinux.srec
-
-#
 # MIPS SIM
 #
 core-$(CONFIG_MIPS_SIM)         += arch/mips/mipssim/
@@ -377,12 +355,6 @@ core-$(CONFIG_MACH_VR41XX)	+= arch/mips/vr41xx/common/
 cflags-$(CONFIG_MACH_VR41XX)    += -Iinclude/asm-mips/mach-vr41xx
 
 #
-# NEC VR4133
-#
-core-$(CONFIG_NEC_CMBVR4133)    += arch/mips/vr41xx/nec-cmbvr4133/
-load-$(CONFIG_NEC_CMBVR4133)    += 0xffffffff80100000
-
-#
 # ZAO Networks Capcella (VR4131)
 #
 load-$(CONFIG_ZAO_CAPCELLA)     += 0xffffffff80000000
@@ -573,29 +545,30 @@ endif
 all-$(CONFIG_SNI_RM)            := vmlinux.ecoff
 
 #
+# Common TXx9
+#
+core-$(CONFIG_MACH_TX39XX)      += arch/mips/txx9/generic/
+cflags-$(CONFIG_MACH_TX39XX) += -Iinclude/asm-mips/mach-tx39xx
+load-$(CONFIG_MACH_TX39XX)      += 0xffffffff80050000
+core-$(CONFIG_MACH_TX49XX)      += arch/mips/txx9/generic/
+cflags-$(CONFIG_MACH_TX49XX) += -Iinclude/asm-mips/mach-tx49xx
+load-$(CONFIG_MACH_TX49XX)      += 0xffffffff80100000
+
+#
 # Toshiba JMR-TX3927 board
 #
-core-$(CONFIG_TOSHIBA_JMR3927)  += arch/mips/jmr3927/rbhma3100/ \
-                                   arch/mips/jmr3927/common/
-cflags-$(CONFIG_TOSHIBA_JMR3927) += -Iinclude/asm-mips/mach-jmr3927
-load-$(CONFIG_TOSHIBA_JMR3927)  += 0xffffffff80050000
+core-$(CONFIG_TOSHIBA_JMR3927)  += arch/mips/txx9/jmr3927/
 
 #
 # Toshiba RBTX4927 board or
 # Toshiba RBTX4937 board
 #
-core-$(CONFIG_TOSHIBA_RBTX4927) += arch/mips/tx4927/toshiba_rbtx4927/
-core-$(CONFIG_TOSHIBA_RBTX4927) += arch/mips/tx4927/common/
-cflags-$(CONFIG_TOSHIBA_RBTX4927) += -Iinclude/asm-mips/mach-tx49xx
-load-$(CONFIG_TOSHIBA_RBTX4927) += 0xffffffff80020000
+core-$(CONFIG_TOSHIBA_RBTX4927) += arch/mips/txx9/rbtx4927/
 
 #
 # Toshiba RBTX4938 board
 #
-core-$(CONFIG_TOSHIBA_RBTX4938) += arch/mips/tx4938/toshiba_rbtx4938/
-core-$(CONFIG_TOSHIBA_RBTX4938) += arch/mips/tx4938/common/
-cflags-$(CONFIG_TOSHIBA_RBTX4938) += -Iinclude/asm-mips/mach-tx49xx
-load-$(CONFIG_TOSHIBA_RBTX4938) += 0xffffffff80100000
+core-$(CONFIG_TOSHIBA_RBTX4938) += arch/mips/txx9/rbtx4938/
 
 cflags-y                        += -Iinclude/asm-mips/mach-generic
 drivers-$(CONFIG_PCI)           += arch/mips/pci/
diff --git a/arch/mips/au1000/common/platform.c b/arch/mips/au1000/common/platform.c
index 74d6d4a593b..dc8a67efac2 100644
--- a/arch/mips/au1000/common/platform.c
+++ b/arch/mips/au1000/common/platform.c
@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
 #include <linux/init.h>
@@ -77,14 +78,14 @@ static struct resource au1xxx_usb_ohci_resources[] = {
 };
 
 /* The dmamask must be set for OHCI to work */
-static u64 ohci_dmamask = ~(u32)0;
+static u64 ohci_dmamask = DMA_32BIT_MASK;
 
 static struct platform_device au1xxx_usb_ohci_device = {
         .name           = "au1xxx-ohci",
         .id             = 0,
         .dev = {
                 .dma_mask               = &ohci_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(au1xxx_usb_ohci_resources),
         .resource       = au1xxx_usb_ohci_resources,
@@ -106,14 +107,14 @@ static struct resource au1100_lcd_resources[] = {
         }
 };
 
-static u64 au1100_lcd_dmamask = ~(u32)0;
+static u64 au1100_lcd_dmamask = DMA_32BIT_MASK;
 
 static struct platform_device au1100_lcd_device = {
         .name           = "au1100-lcd",
         .id             = 0,
         .dev = {
                 .dma_mask               = &au1100_lcd_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(au1100_lcd_resources),
         .resource       = au1100_lcd_resources,
@@ -135,14 +136,14 @@ static struct resource au1xxx_usb_ehci_resources[] = {
         },
 };
 
-static u64 ehci_dmamask = ~(u32)0;
+static u64 ehci_dmamask = DMA_32BIT_MASK;
 
 static struct platform_device au1xxx_usb_ehci_device = {
         .name           = "au1xxx-ehci",
         .id             = 0,
         .dev = {
                 .dma_mask               = &ehci_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(au1xxx_usb_ehci_resources),
         .resource       = au1xxx_usb_ehci_resources,
@@ -180,14 +181,14 @@ static struct resource au1xxx_mmc_resources[] = {
         }
 };
 
-static u64 udc_dmamask = ~(u32)0;
+static u64 udc_dmamask = DMA_32BIT_MASK;
 
 static struct platform_device au1xxx_usb_gdt_device = {
         .name           = "au1xxx-udc",
         .id             = 0,
         .dev = {
                 .dma_mask               = &udc_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(au1xxx_usb_gdt_resources),
         .resource       = au1xxx_usb_gdt_resources,
@@ -207,14 +208,14 @@ static struct resource au1xxx_usb_otg_resources[] = {
         },
 };
 
-static u64 uoc_dmamask = ~(u32)0;
+static u64 uoc_dmamask = DMA_32BIT_MASK;
 
 static struct platform_device au1xxx_usb_otg_device = {
         .name           = "au1xxx-uoc",
         .id             = 0,
         .dev = {
                 .dma_mask               = &uoc_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(au1xxx_usb_otg_resources),
         .resource       = au1xxx_usb_otg_resources,
@@ -233,27 +234,27 @@ static struct resource au1200_lcd_resources[] = {
         }
 };
 
-static u64 au1200_lcd_dmamask = ~(u32)0;
+static u64 au1200_lcd_dmamask = DMA_32BIT_MASK;
 
 static struct platform_device au1200_lcd_device = {
         .name           = "au1200-lcd",
         .id             = 0,
         .dev = {
                 .dma_mask               = &au1200_lcd_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(au1200_lcd_resources),
         .resource       = au1200_lcd_resources,
 };
 
-static u64 au1xxx_mmc_dmamask =  ~(u32)0;
+static u64 au1xxx_mmc_dmamask =  DMA_32BIT_MASK;
 
 static struct platform_device au1xxx_mmc_device = {
         .name = "au1xxx-mmc",
         .id = 0,
         .dev = {
                 .dma_mask               = &au1xxx_mmc_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(au1xxx_mmc_resources),
         .resource       = au1xxx_mmc_resources,
diff --git a/arch/mips/au1000/mtx-1/platform.c b/arch/mips/au1000/mtx-1/platform.c
index 9807be37c32..8b5914d1241 100644
--- a/arch/mips/au1000/mtx-1/platform.c
+++ b/arch/mips/au1000/mtx-1/platform.c
@@ -24,6 +24,9 @@
 #include <linux/gpio.h>
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <mtd/mtd-abi.h>
 
 static struct gpio_keys_button mtx1_gpio_button[] = {
         {
@@ -85,10 +88,56 @@ static struct platform_device mtx1_gpio_leds = {
         }
 };
 
+static struct mtd_partition mtx1_mtd_partitions[] = {
+        {
+                .name   = "filesystem",
+                .size   = 0x01C00000,
+                .offset = 0,
+        },
+        {
+                .name   = "yamon",
+                .size   = 0x00100000,
+                .offset = MTDPART_OFS_APPEND,
+                .mask_flags = MTD_WRITEABLE,
+        },
+        {
+                .name   = "kernel",
+                .size   = 0x002c0000,
+                .offset = MTDPART_OFS_APPEND,
+        },
+        {
+                .name   = "yamon env",
+                .size   = 0x00040000,
+                .offset = MTDPART_OFS_APPEND,
+        },
+};
+
+static struct physmap_flash_data mtx1_flash_data = {
+        .width          = 4,
+        .nr_parts       = 4,
+        .parts          = mtx1_mtd_partitions,
+};
+
+static struct resource mtx1_mtd_resource = {
+        .start  = 0x1e000000,
+        .end    = 0x1fffffff,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct platform_device mtx1_mtd = {
+        .name           = "physmap-flash",
+        .dev            = {
+                .platform_data  = &mtx1_flash_data,
+        },
+        .num_resources  = 1,
+        .resource       = &mtx1_mtd_resource,
+};
+
 static struct __initdata platform_device * mtx1_devs[] = {
         &mtx1_gpio_leds,
         &mtx1_wdt,
-        &mtx1_button
+        &mtx1_button,
+        &mtx1_mtd,
 };
 
 static int __init mtx1_register_devices(void)
diff --git a/arch/mips/au1000/pb1200/platform.c b/arch/mips/au1000/pb1200/platform.c
index 5930110b9b6..f8fb0aeac57 100644
--- a/arch/mips/au1000/pb1200/platform.c
+++ b/arch/mips/au1000/pb1200/platform.c
@@ -18,6 +18,7 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#include <linux/dma-mapping.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 
@@ -36,14 +37,14 @@ static struct resource ide_resources[] = {
         }
 };
 
-static u64 ide_dmamask = ~(u32)0;
+static u64 ide_dmamask = DMA_32BIT_MASK;
 
 static struct platform_device ide_device = {
         .name           = "au1200-ide",
         .id             = 0,
         .dev = {
                 .dma_mask               = &ide_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(ide_resources),
         .resource       = ide_resources
diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile
index d73833b7c78..237926288d6 100644
--- a/arch/mips/cobalt/Makefile
+++ b/arch/mips/cobalt/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the Cobalt micro systems family specific parts of the kernel
 #
 
-obj-y := buttons.o irq.o led.o reset.o rtc.o serial.o setup.o time.o
+obj-y := buttons.o irq.o lcd.o led.o reset.o rtc.o serial.o setup.o time.o
 
 obj-$(CONFIG_PCI)               += pci.o
 obj-$(CONFIG_EARLY_PRINTK)      += console.o
diff --git a/arch/mips/cobalt/lcd.c b/arch/mips/cobalt/lcd.c
new file mode 100644
index 00000000000..0720e4fae31
--- /dev/null
+++ b/arch/mips/cobalt/lcd.c
@@ -0,0 +1,55 @@
+/*
+ *  Registration of Cobalt LCD platform device.
+ *
+ *  Copyright (C) 2008  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+
+static struct resource cobalt_lcd_resource __initdata = {
+        .start  = 0x1f000000,
+        .end    = 0x1f00001f,
+        .flags  = IORESOURCE_MEM,
+};
+
+static __init int cobalt_lcd_add(void)
+{
+        struct platform_device *pdev;
+        int retval;
+
+        pdev = platform_device_alloc("cobalt-lcd", -1);
+        if (!pdev)
+                return -ENOMEM;
+
+        retval = platform_device_add_resources(pdev, &cobalt_lcd_resource, 1);
+        if (retval)
+                goto err_free_device;
+
+        retval = platform_device_add(pdev);
+        if (retval)
+                goto err_free_device;
+
+        return 0;
+
+err_free_device:
+        platform_device_put(pdev);
+
+        return retval;
+}
+device_initcall(cobalt_lcd_add);
diff --git a/arch/mips/configs/atlas_defconfig b/arch/mips/configs/atlas_defconfig
deleted file mode 100644
index 3443f6cd57b..00000000000
--- a/arch/mips/configs/atlas_defconfig
+++ /dev/null
@@ -1,1472 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20
-# Sun Feb 18 21:27:35 2007
-#
-CONFIG_MIPS=y
-
-#
-# Machine selection
-#
-CONFIG_ZONE_DMA=y
-# CONFIG_MIPS_MTX1 is not set
-# CONFIG_MIPS_BOSPORUS is not set
-# CONFIG_MIPS_PB1000 is not set
-# CONFIG_MIPS_PB1100 is not set
-# CONFIG_MIPS_PB1500 is not set
-# CONFIG_MIPS_PB1550 is not set
-# CONFIG_MIPS_PB1200 is not set
-# CONFIG_MIPS_DB1000 is not set
-# CONFIG_MIPS_DB1100 is not set
-# CONFIG_MIPS_DB1500 is not set
-# CONFIG_MIPS_DB1550 is not set
-# CONFIG_MIPS_DB1200 is not set
-# CONFIG_MIPS_MIRAGE is not set
-# CONFIG_BASLER_EXCITE is not set
-# CONFIG_MIPS_COBALT is not set
-# CONFIG_MACH_DECSTATION is not set
-# CONFIG_MACH_JAZZ is not set
-CONFIG_MIPS_ATLAS=y
-# CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
-# CONFIG_WR_PPMC is not set
-# CONFIG_MIPS_SIM is not set
-# CONFIG_MOMENCO_JAGUAR_ATX is not set
-# CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_JBS is not set
-# CONFIG_PNX8550_STB810 is not set
-# CONFIG_MACH_VR41XX is not set
-# CONFIG_PMC_YOSEMITE is not set
-# CONFIG_MARKEINS is not set
-# CONFIG_SGI_IP22 is not set
-# CONFIG_SGI_IP27 is not set
-# CONFIG_SGI_IP32 is not set
-# CONFIG_SIBYTE_BIGSUR is not set
-# CONFIG_SIBYTE_SWARM is not set
-# CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_RHONE is not set
-# CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_LITTLESUR is not set
-# CONFIG_SIBYTE_CRHINE is not set
-# CONFIG_SIBYTE_CRHONE is not set
-# CONFIG_SNI_RM is not set
-# CONFIG_TOSHIBA_JMR3927 is not set
-# CONFIG_TOSHIBA_RBTX4927 is not set
-# CONFIG_TOSHIBA_RBTX4938 is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_TIME=y
-CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
-CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
-CONFIG_DMA_NONCOHERENT=y
-CONFIG_DMA_NEED_PCI_MAP_STATE=y
-CONFIG_MIPS_BONITO64=y
-CONFIG_MIPS_MSC=y
-# CONFIG_CPU_BIG_ENDIAN is not set
-CONFIG_CPU_LITTLE_ENDIAN=y
-CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
-CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
-CONFIG_IRQ_CPU=y
-CONFIG_MIPS_BOARDS_GEN=y
-CONFIG_MIPS_GT64120=y
-CONFIG_SWAP_IO_SPACE=y
-CONFIG_BOOT_ELF32=y
-CONFIG_MIPS_L1_CACHE_SHIFT=5
-
-#
-# CPU selection
-#
-CONFIG_CPU_MIPS32_R1=y
-# CONFIG_CPU_MIPS32_R2 is not set
-# CONFIG_CPU_MIPS64_R1 is not set
-# CONFIG_CPU_MIPS64_R2 is not set
-# CONFIG_CPU_R3000 is not set
-# CONFIG_CPU_TX39XX is not set
-# CONFIG_CPU_VR41XX is not set
-# CONFIG_CPU_R4300 is not set
-# CONFIG_CPU_R4X00 is not set
-# CONFIG_CPU_TX49XX is not set
-# CONFIG_CPU_R5000 is not set
-# CONFIG_CPU_R5432 is not set
-# CONFIG_CPU_R6000 is not set
-# CONFIG_CPU_NEVADA is not set
-# CONFIG_CPU_R8000 is not set
-# CONFIG_CPU_R10000 is not set
-# CONFIG_CPU_RM7000 is not set
-# CONFIG_CPU_RM9000 is not set
-# CONFIG_CPU_SB1 is not set
-CONFIG_SYS_HAS_CPU_MIPS32_R1=y
-CONFIG_SYS_HAS_CPU_MIPS32_R2=y
-CONFIG_SYS_HAS_CPU_MIPS64_R1=y
-CONFIG_SYS_HAS_CPU_NEVADA=y
-CONFIG_SYS_HAS_CPU_RM7000=y
-CONFIG_CPU_MIPS32=y
-CONFIG_CPU_MIPSR1=y
-CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
-CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y
-CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
-
-#
-# Kernel type
-#
-CONFIG_32BIT=y
-# CONFIG_64BIT is not set
-CONFIG_PAGE_SIZE_4KB=y
-# CONFIG_PAGE_SIZE_8KB is not set
-# CONFIG_PAGE_SIZE_16KB is not set
-# CONFIG_PAGE_SIZE_64KB is not set
-CONFIG_BOARD_SCACHE=y
-CONFIG_RM7000_CPU_SCACHE=y
-CONFIG_CPU_HAS_PREFETCH=y
-CONFIG_MIPS_MT_DISABLED=y
-# CONFIG_MIPS_MT_SMP is not set
-# CONFIG_MIPS_MT_SMTC is not set
-# CONFIG_MIPS_VPE_LOADER is not set
-CONFIG_SYS_SUPPORTS_MULTITHREADING=y
-# CONFIG_64BIT_PHYS_ADDR is not set
-CONFIG_CPU_HAS_LLSC=y
-# CONFIG_CPU_HAS_SMARTMIPS is not set
-CONFIG_CPU_HAS_SYNC=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_CPU_SUPPORTS_HIGHMEM=y
-CONFIG_SYS_SUPPORTS_SMARTMIPS=y
-CONFIG_ARCH_FLATMEM_ENABLE=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=1
-# CONFIG_HZ_48 is not set
-CONFIG_HZ_100=y
-# CONFIG_HZ_128 is not set
-# CONFIG_HZ_250 is not set
-# CONFIG_HZ_256 is not set
-# CONFIG_HZ_1000 is not set
-# CONFIG_HZ_1024 is not set
-CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
-CONFIG_HZ=100
-CONFIG_PREEMPT_NONE=y
-# CONFIG_PREEMPT_VOLUNTARY is not set
-# CONFIG_PREEMPT is not set
-# CONFIG_KEXEC is not set
-CONFIG_LOCKDEP_SUPPORT=y
-CONFIG_STACKTRACE_SUPPORT=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-# CONFIG_IPC_NS is not set
-CONFIG_SYSVIPC_SYSCTL=y
-# CONFIG_POSIX_MQUEUE is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_UTS_NS is not set
-# CONFIG_AUDIT is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_RELAY=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-CONFIG_EMBEDDED=y
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_SHMEM=y
-CONFIG_SLAB=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_SLOB is not set
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-CONFIG_MODVERSIONS=y
-CONFIG_MODULE_SRCVERSION_ALL=y
-CONFIG_KMOD=y
-
-#
-# Block layer
-#
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-CONFIG_DEFAULT_AS=y
-# CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="anticipatory"
-
-#
-# Bus options (PCI, PCMCIA, EISA, ISA, TC)
-#
-CONFIG_HW_HAS_PCI=y
-CONFIG_PCI=y
-CONFIG_MMU=y
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-# CONFIG_PCCARD is not set
-
-#
-# PCI Hotplug Support
-#
-# CONFIG_HOTPLUG_PCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-CONFIG_TRAD_SIGNALS=y
-
-#
-# Power management options
-#
-CONFIG_PM=y
-# CONFIG_PM_LEGACY is not set
-# CONFIG_PM_DEBUG is not set
-# CONFIG_PM_SYSFS_DEPRECATED is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-# CONFIG_NETDEBUG is not set
-CONFIG_PACKET=y
-CONFIG_PACKET_MMAP=y
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-CONFIG_XFRM_USER=m
-# CONFIG_XFRM_SUB_POLICY is not set
-CONFIG_XFRM_MIGRATE=y
-CONFIG_NET_KEY=y
-CONFIG_NET_KEY_MIGRATE=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_ADVANCED_ROUTER=y
-CONFIG_ASK_IP_FIB_HASH=y
-# CONFIG_IP_FIB_TRIE is not set
-CONFIG_IP_FIB_HASH=y
-CONFIG_IP_MULTIPLE_TABLES=y
-CONFIG_IP_ROUTE_MULTIPATH=y
-# CONFIG_IP_ROUTE_MULTIPATH_CACHED is not set
-CONFIG_IP_ROUTE_VERBOSE=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-# CONFIG_IP_PNP_RARP is not set
-CONFIG_NET_IPIP=m
-CONFIG_NET_IPGRE=m
-CONFIG_NET_IPGRE_BROADCAST=y
-CONFIG_IP_MROUTE=y
-CONFIG_IP_PIMSM_V1=y
-CONFIG_IP_PIMSM_V2=y
-# CONFIG_ARPD is not set
-CONFIG_SYN_COOKIES=y
-CONFIG_INET_AH=m
-CONFIG_INET_ESP=m
-CONFIG_INET_IPCOMP=m
-CONFIG_INET_XFRM_TUNNEL=m
-CONFIG_INET_TUNNEL=m
-CONFIG_INET_XFRM_MODE_TRANSPORT=m
-CONFIG_INET_XFRM_MODE_TUNNEL=m
-CONFIG_INET_XFRM_MODE_BEET=m
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-CONFIG_TCP_MD5SIG=y
-
-#
-# IP: Virtual Server Configuration
-#
-CONFIG_IP_VS=m
-# CONFIG_IP_VS_DEBUG is not set
-CONFIG_IP_VS_TAB_BITS=12
-
-#
-# IPVS transport protocol load balancing support
-#
-CONFIG_IP_VS_PROTO_TCP=y
-CONFIG_IP_VS_PROTO_UDP=y
-CONFIG_IP_VS_PROTO_ESP=y
-CONFIG_IP_VS_PROTO_AH=y
-
-#
-# IPVS scheduler
-#
-CONFIG_IP_VS_RR=m
-CONFIG_IP_VS_WRR=m
-CONFIG_IP_VS_LC=m
-CONFIG_IP_VS_WLC=m
-CONFIG_IP_VS_LBLC=m
-CONFIG_IP_VS_LBLCR=m
-CONFIG_IP_VS_DH=m
-CONFIG_IP_VS_SH=m
-CONFIG_IP_VS_SED=m
-CONFIG_IP_VS_NQ=m
-
-#
-# IPVS application helper
-#
-CONFIG_IP_VS_FTP=m
-CONFIG_IPV6=m
-CONFIG_IPV6_PRIVACY=y
-CONFIG_IPV6_ROUTER_PREF=y
-CONFIG_IPV6_ROUTE_INFO=y
-CONFIG_INET6_AH=m
-CONFIG_INET6_ESP=m
-CONFIG_INET6_IPCOMP=m
-CONFIG_IPV6_MIP6=y
-CONFIG_INET6_XFRM_TUNNEL=m
-CONFIG_INET6_TUNNEL=m
-CONFIG_INET6_XFRM_MODE_TRANSPORT=m
-CONFIG_INET6_XFRM_MODE_TUNNEL=m
-CONFIG_INET6_XFRM_MODE_BEET=m
-CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
-CONFIG_IPV6_SIT=m
-CONFIG_IPV6_TUNNEL=m
-CONFIG_IPV6_MULTIPLE_TABLES=y
-CONFIG_IPV6_SUBTREES=y
-CONFIG_NETWORK_SECMARK=y
-CONFIG_NETFILTER=y
-# CONFIG_NETFILTER_DEBUG is not set
-CONFIG_BRIDGE_NETFILTER=y
-
-#
-# Core Netfilter Configuration
-#
-CONFIG_NETFILTER_NETLINK=m
-CONFIG_NETFILTER_NETLINK_QUEUE=m
-CONFIG_NETFILTER_NETLINK_LOG=m
-CONFIG_NF_CONNTRACK_ENABLED=m
-CONFIG_NF_CONNTRACK_SUPPORT=y
-# CONFIG_IP_NF_CONNTRACK_SUPPORT is not set
-CONFIG_NF_CONNTRACK=m
-CONFIG_NF_CT_ACCT=y
-CONFIG_NF_CONNTRACK_MARK=y
-CONFIG_NF_CONNTRACK_SECMARK=y
-CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_GRE=m
-CONFIG_NF_CT_PROTO_SCTP=m
-CONFIG_NF_CONNTRACK_AMANDA=m
-CONFIG_NF_CONNTRACK_FTP=m
-CONFIG_NF_CONNTRACK_H323=m
-CONFIG_NF_CONNTRACK_IRC=m
-# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
-CONFIG_NF_CONNTRACK_PPTP=m
-CONFIG_NF_CONNTRACK_SANE=m
-CONFIG_NF_CONNTRACK_SIP=m
-CONFIG_NF_CONNTRACK_TFTP=m
-CONFIG_NF_CT_NETLINK=m
-CONFIG_NETFILTER_XTABLES=m
-CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
-CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
-CONFIG_NETFILTER_XT_TARGET_DSCP=m
-CONFIG_NETFILTER_XT_TARGET_MARK=m
-CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
-CONFIG_NETFILTER_XT_TARGET_NFLOG=m
-CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
-CONFIG_NETFILTER_XT_TARGET_SECMARK=m
-CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
-CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
-CONFIG_NETFILTER_XT_MATCH_COMMENT=m
-CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
-CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
-CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
-CONFIG_NETFILTER_XT_MATCH_DCCP=m
-CONFIG_NETFILTER_XT_MATCH_DSCP=m
-CONFIG_NETFILTER_XT_MATCH_ESP=m
-CONFIG_NETFILTER_XT_MATCH_HELPER=m
-CONFIG_NETFILTER_XT_MATCH_LENGTH=m
-CONFIG_NETFILTER_XT_MATCH_LIMIT=m
-CONFIG_NETFILTER_XT_MATCH_MAC=m
-CONFIG_NETFILTER_XT_MATCH_MARK=m
-CONFIG_NETFILTER_XT_MATCH_POLICY=m
-CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
-CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
-CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
-CONFIG_NETFILTER_XT_MATCH_QUOTA=m
-CONFIG_NETFILTER_XT_MATCH_REALM=m
-CONFIG_NETFILTER_XT_MATCH_SCTP=m
-CONFIG_NETFILTER_XT_MATCH_STATE=m
-CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
-CONFIG_NETFILTER_XT_MATCH_STRING=m
-CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
-CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
-
-#
-# IP: Netfilter Configuration
-#
-CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_NF_CONNTRACK_PROC_COMPAT=y
-CONFIG_IP_NF_QUEUE=m
-CONFIG_IP_NF_IPTABLES=m
-CONFIG_IP_NF_MATCH_IPRANGE=m
-CONFIG_IP_NF_MATCH_TOS=m
-CONFIG_IP_NF_MATCH_RECENT=m
-CONFIG_IP_NF_MATCH_ECN=m
-CONFIG_IP_NF_MATCH_AH=m
-CONFIG_IP_NF_MATCH_TTL=m
-CONFIG_IP_NF_MATCH_OWNER=m
-CONFIG_IP_NF_MATCH_ADDRTYPE=m
-CONFIG_IP_NF_FILTER=m
-CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
-CONFIG_NF_NAT=m
-CONFIG_NF_NAT_NEEDED=y
-CONFIG_IP_NF_TARGET_MASQUERADE=m
-CONFIG_IP_NF_TARGET_REDIRECT=m
-CONFIG_IP_NF_TARGET_NETMAP=m
-CONFIG_IP_NF_TARGET_SAME=m
-CONFIG_NF_NAT_SNMP_BASIC=m
-CONFIG_NF_NAT_PROTO_GRE=m
-CONFIG_NF_NAT_FTP=m
-CONFIG_NF_NAT_IRC=m
-CONFIG_NF_NAT_TFTP=m
-CONFIG_NF_NAT_AMANDA=m
-CONFIG_NF_NAT_PPTP=m
-CONFIG_NF_NAT_H323=m
-CONFIG_NF_NAT_SIP=m
-CONFIG_IP_NF_MANGLE=m
-CONFIG_IP_NF_TARGET_TOS=m
-CONFIG_IP_NF_TARGET_ECN=m
-CONFIG_IP_NF_TARGET_TTL=m
-# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
-CONFIG_IP_NF_RAW=m
-CONFIG_IP_NF_ARPTABLES=m
-CONFIG_IP_NF_ARPFILTER=m
-CONFIG_IP_NF_ARP_MANGLE=m
-
-#
-# IPv6: Netfilter Configuration (EXPERIMENTAL)
-#
-CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
-CONFIG_IP6_NF_IPTABLES=m
-CONFIG_IP6_NF_MATCH_RT=m
-CONFIG_IP6_NF_MATCH_OPTS=m
-CONFIG_IP6_NF_MATCH_FRAG=m
-CONFIG_IP6_NF_MATCH_HL=m
-CONFIG_IP6_NF_MATCH_OWNER=m
-CONFIG_IP6_NF_MATCH_IPV6HEADER=m
-CONFIG_IP6_NF_MATCH_AH=m
-CONFIG_IP6_NF_MATCH_MH=m
-CONFIG_IP6_NF_MATCH_EUI64=m
-CONFIG_IP6_NF_FILTER=m
-CONFIG_IP6_NF_TARGET_LOG=m
-CONFIG_IP6_NF_TARGET_REJECT=m
-CONFIG_IP6_NF_MANGLE=m
-CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_RAW=m
-
-#
-# Bridge: Netfilter Configuration
-#
-CONFIG_BRIDGE_NF_EBTABLES=m
-CONFIG_BRIDGE_EBT_BROUTE=m
-CONFIG_BRIDGE_EBT_T_FILTER=m
-CONFIG_BRIDGE_EBT_T_NAT=m
-CONFIG_BRIDGE_EBT_802_3=m
-CONFIG_BRIDGE_EBT_AMONG=m
-CONFIG_BRIDGE_EBT_ARP=m
-CONFIG_BRIDGE_EBT_IP=m
-CONFIG_BRIDGE_EBT_LIMIT=m
-CONFIG_BRIDGE_EBT_MARK=m
-CONFIG_BRIDGE_EBT_PKTTYPE=m
-CONFIG_BRIDGE_EBT_STP=m
-CONFIG_BRIDGE_EBT_VLAN=m
-CONFIG_BRIDGE_EBT_ARPREPLY=m
-CONFIG_BRIDGE_EBT_DNAT=m
-CONFIG_BRIDGE_EBT_MARK_T=m
-CONFIG_BRIDGE_EBT_REDIRECT=m
-CONFIG_BRIDGE_EBT_SNAT=m
-CONFIG_BRIDGE_EBT_LOG=m
-CONFIG_BRIDGE_EBT_ULOG=m
-
-#
-# DCCP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_DCCP is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-CONFIG_IP_SCTP=m
-# CONFIG_SCTP_DBG_MSG is not set
-# CONFIG_SCTP_DBG_OBJCNT is not set
-# CONFIG_SCTP_HMAC_NONE is not set
-# CONFIG_SCTP_HMAC_SHA1 is not set
-CONFIG_SCTP_HMAC_MD5=y
-
-#
-# TIPC Configuration (EXPERIMENTAL)
-#
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-CONFIG_BRIDGE=m
-CONFIG_VLAN_8021Q=m
-# CONFIG_DECNET is not set
-CONFIG_LLC=m
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-CONFIG_ATALK=m
-CONFIG_DEV_APPLETALK=m
-CONFIG_IPDDP=m
-CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
-CONFIG_NET_SCHED=y
-CONFIG_NET_SCH_FIFO=y
-CONFIG_NET_SCH_CLK_JIFFIES=y
-# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set
-# CONFIG_NET_SCH_CLK_CPU is not set
-
-#
-# Queueing/Scheduling
-#
-CONFIG_NET_SCH_CBQ=m
-CONFIG_NET_SCH_HTB=m
-CONFIG_NET_SCH_HFSC=m
-CONFIG_NET_SCH_PRIO=m
-CONFIG_NET_SCH_RED=m
-CONFIG_NET_SCH_SFQ=m
-CONFIG_NET_SCH_TEQL=m
-CONFIG_NET_SCH_TBF=m
-CONFIG_NET_SCH_GRED=m
-CONFIG_NET_SCH_DSMARK=m
-CONFIG_NET_SCH_NETEM=m
-CONFIG_NET_SCH_INGRESS=m
-
-#
-# Classification
-#
-CONFIG_NET_CLS=y
-CONFIG_NET_CLS_BASIC=m
-CONFIG_NET_CLS_TCINDEX=m
-CONFIG_NET_CLS_ROUTE4=m
-CONFIG_NET_CLS_ROUTE=y
-CONFIG_NET_CLS_FW=m
-CONFIG_NET_CLS_U32=m
-# CONFIG_CLS_U32_PERF is not set
-# CONFIG_CLS_U32_MARK is not set
-CONFIG_NET_CLS_RSVP=m
-CONFIG_NET_CLS_RSVP6=m
-# CONFIG_NET_EMATCH is not set
-# CONFIG_NET_CLS_ACT is not set
-CONFIG_NET_CLS_POLICE=y
-CONFIG_NET_CLS_IND=y
-CONFIG_NET_ESTIMATOR=y
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-CONFIG_IEEE80211=m
-# CONFIG_IEEE80211_DEBUG is not set
-CONFIG_IEEE80211_CRYPT_WEP=m
-CONFIG_IEEE80211_CRYPT_CCMP=m
-CONFIG_IEEE80211_SOFTMAC=m
-# CONFIG_IEEE80211_SOFTMAC_DEBUG is not set
-CONFIG_WIRELESS_EXT=y
-CONFIG_FIB_RULES=y
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=y
-# CONFIG_SYS_HYPERVISOR is not set
-
-#
-# Connector - unified userspace <-> kernelspace linker
-#
-CONFIG_CONNECTOR=m
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-CONFIG_BLK_DEV_UMEM=m
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=m
-CONFIG_BLK_DEV_CRYPTOLOOP=m
-CONFIG_BLK_DEV_NBD=m
-# CONFIG_BLK_DEV_SX8 is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-# CONFIG_BLK_DEV_INITRD is not set
-CONFIG_CDROM_PKTCDVD=m
-CONFIG_CDROM_PKTCDVD_BUFFERS=8
-# CONFIG_CDROM_PKTCDVD_WCACHE is not set
-CONFIG_ATA_OVER_ETH=m
-
-#
-# Misc devices
-#
-CONFIG_SGI_IOC4=m
-# CONFIG_TIFM_CORE is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-CONFIG_IDE=y
-CONFIG_IDE_MAX_HWIFS=4
-CONFIG_BLK_DEV_IDE=y
-
-#
-# Please see Documentation/ide.txt for help/info on IDE drives
-#
-# CONFIG_BLK_DEV_IDE_SATA is not set
-CONFIG_BLK_DEV_IDEDISK=y
-# CONFIG_IDEDISK_MULTI_MODE is not set
-CONFIG_BLK_DEV_IDECD=y
-# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_BLK_DEV_IDEFLOPPY is not set
-# CONFIG_BLK_DEV_IDESCSI is not set
-# CONFIG_IDE_TASK_IOCTL is not set
-
-#
-# IDE chipset support/bugfixes
-#
-CONFIG_IDE_GENERIC=y
-# CONFIG_BLK_DEV_IDEPCI is not set
-# CONFIG_IDE_ARM is not set
-# CONFIG_BLK_DEV_IDEDMA is not set
-# CONFIG_IDEDMA_AUTO is not set
-# CONFIG_BLK_DEV_HD is not set
-
-#
-# SCSI device support
-#
-CONFIG_RAID_ATTRS=m
-CONFIG_SCSI=y
-CONFIG_SCSI_TGT=m
-CONFIG_SCSI_NETLINK=y
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-CONFIG_CHR_DEV_ST=m
-CONFIG_CHR_DEV_OSST=m
-CONFIG_BLK_DEV_SR=m
-CONFIG_BLK_DEV_SR_VENDOR=y
-CONFIG_CHR_DEV_SG=m
-CONFIG_CHR_DEV_SCH=m
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-CONFIG_SCSI_MULTI_LUN=y
-CONFIG_SCSI_CONSTANTS=y
-CONFIG_SCSI_LOGGING=y
-CONFIG_SCSI_SCAN_ASYNC=y
-
-#
-# SCSI Transports
-#
-CONFIG_SCSI_SPI_ATTRS=y
-CONFIG_SCSI_FC_ATTRS=y
-CONFIG_SCSI_ISCSI_ATTRS=m
-CONFIG_SCSI_SAS_ATTRS=m
-CONFIG_SCSI_SAS_LIBSAS=m
-CONFIG_SCSI_SAS_LIBSAS_DEBUG=y
-
-#
-# SCSI low-level drivers
-#
-CONFIG_ISCSI_TCP=m
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_3W_9XXX is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AACRAID is not set
-# CONFIG_SCSI_AIC7XXX is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-CONFIG_SCSI_AIC94XX=m
-# CONFIG_AIC94XX_DEBUG is not set
-# CONFIG_SCSI_DPT_I2O is not set
-# CONFIG_SCSI_ARCMSR is not set
-# CONFIG_MEGARAID_NEWGEN is not set
-# CONFIG_MEGARAID_LEGACY is not set
-# CONFIG_MEGARAID_SAS is not set
-# CONFIG_SCSI_HPTIOP is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_STEX is not set
-CONFIG_SCSI_SYM53C8XX_2=y
-CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
-CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
-CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
-CONFIG_SCSI_SYM53C8XX_MMIO=y
-# CONFIG_SCSI_QLOGIC_1280 is not set
-# CONFIG_SCSI_QLA_FC is not set
-# CONFIG_SCSI_QLA_ISCSI is not set
-# CONFIG_SCSI_LPFC is not set
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_NSP32 is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_SRP is not set
-
-#
-# Serial ATA (prod) and Parallel ATA (experimental) drivers
-#
-# CONFIG_ATA is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-CONFIG_MD=y
-CONFIG_BLK_DEV_MD=m
-CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
-CONFIG_MD_RAID1=m
-CONFIG_MD_RAID10=m
-CONFIG_MD_RAID456=m
-CONFIG_MD_RAID5_RESHAPE=y
-CONFIG_MD_MULTIPATH=m
-CONFIG_MD_FAULTY=m
-CONFIG_BLK_DEV_DM=m
-# CONFIG_DM_DEBUG is not set
-CONFIG_DM_CRYPT=m
-CONFIG_DM_SNAPSHOT=m
-CONFIG_DM_MIRROR=m
-CONFIG_DM_ZERO=m
-CONFIG_DM_MULTIPATH=m
-CONFIG_DM_MULTIPATH_EMC=m
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-# CONFIG_FUSION_SPI is not set
-# CONFIG_FUSION_FC is not set
-# CONFIG_FUSION_SAS is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Network device support
-#
-CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
-CONFIG_BONDING=m
-CONFIG_EQUALIZER=m
-CONFIG_TUN=m
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# PHY device support
-#
-CONFIG_PHYLIB=m
-
-#
-# MII PHY device drivers
-#
-CONFIG_MARVELL_PHY=m
-CONFIG_DAVICOM_PHY=m
-CONFIG_QSEMI_PHY=m
-CONFIG_LXT_PHY=m
-CONFIG_CICADA_PHY=m
-CONFIG_VITESSE_PHY=m
-CONFIG_SMSC_PHY=m
-# CONFIG_BROADCOM_PHY is not set
-# CONFIG_FIXED_PHY is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_CASSINI is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_DM9000 is not set
-
-#
-# Tulip family network device support
-#
-# CONFIG_NET_TULIP is not set
-# CONFIG_HP100 is not set
-CONFIG_NET_PCI=y
-CONFIG_PCNET32=y
-# CONFIG_PCNET32_NAPI is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_DGRS is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139CP is not set
-# CONFIG_8139TOO is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-CONFIG_LAN_SAA9730=y
-# CONFIG_SC92031 is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_BNX2 is not set
-CONFIG_QLA3XXX=m
-# CONFIG_ATL1 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_CHELSIO_T1 is not set
-CONFIG_CHELSIO_T3=m
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-# CONFIG_MYRI10GE is not set
-CONFIG_NETXEN_NIC=m
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_NET_FC is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=m
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-# CONFIG_INPUT_KEYBOARD is not set
-CONFIG_INPUT_MOUSE=y
-# CONFIG_MOUSE_PS2 is not set
-CONFIG_MOUSE_SERIAL=m
-# CONFIG_MOUSE_VSXXXAA is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_PCIPS2 is not set
-CONFIG_SERIO_LIBPS2=y
-CONFIG_SERIO_RAW=y
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-CONFIG_VT_HW_CONSOLE_BINDING=y
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_PCI=m
-CONFIG_SERIAL_8250_NR_UARTS=4
-CONFIG_SERIAL_8250_RUNTIME_UARTS=4
-# CONFIG_SERIAL_8250_EXTENDED is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_SERIAL_JSM is not set
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
-# CONFIG_TCG_TPM is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-
-#
-# Dallas's 1-wire bus
-#
-# CONFIG_W1 is not set
-
-#
-# Hardware Monitoring support
-#
-# CONFIG_HWMON is not set
-# CONFIG_HWMON_VID is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-
-#
-# Graphics support
-#
-# CONFIG_FIRMWARE_EDID is not set
-# CONFIG_FB is not set
-
-#
-# Console display driver support
-#
-# CONFIG_VGA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE=y
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# HID Devices
-#
-CONFIG_HID=y
-# CONFIG_HID_DEBUG is not set
-
-#
-# USB support
-#
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_ARCH_HAS_EHCI=y
-# CONFIG_USB is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# MMC/SD Card support
-#
-# CONFIG_MMC is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
-
-#
-# LED drivers
-#
-
-#
-# LED Triggers
-#
-
-#
-# InfiniBand support
-#
-# CONFIG_INFINIBAND is not set
-
-#
-# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
-#
-
-#
-# Real Time Clock
-#
-# CONFIG_RTC_CLASS is not set
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
-# Auxiliary Display support
-#
-
-#
-# Virtualization
-#
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-CONFIG_REISERFS_FS=m
-# CONFIG_REISERFS_CHECK is not set
-CONFIG_REISERFS_PROC_INFO=y
-CONFIG_REISERFS_FS_XATTR=y
-CONFIG_REISERFS_FS_POSIX_ACL=y
-CONFIG_REISERFS_FS_SECURITY=y
-CONFIG_JFS_FS=m
-CONFIG_JFS_POSIX_ACL=y
-CONFIG_JFS_SECURITY=y
-# CONFIG_JFS_DEBUG is not set
-# CONFIG_JFS_STATISTICS is not set
-CONFIG_FS_POSIX_ACL=y
-CONFIG_XFS_FS=m
-CONFIG_XFS_QUOTA=y
-CONFIG_XFS_SECURITY=y
-CONFIG_XFS_POSIX_ACL=y
-# CONFIG_XFS_RT is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_OCFS2_FS is not set
-CONFIG_MINIX_FS=m
-CONFIG_ROMFS_FS=m
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-CONFIG_QUOTA=y
-# CONFIG_QFMT_V1 is not set
-CONFIG_QFMT_V2=y
-CONFIG_QUOTACTL=y
-CONFIG_DNOTIFY=y
-CONFIG_AUTOFS_FS=y
-# CONFIG_AUTOFS4_FS is not set
-CONFIG_FUSE_FS=m
-CONFIG_GENERIC_ACL=y
-
-#
-# CD-ROM/DVD Filesystems
-#
-CONFIG_ISO9660_FS=m
-CONFIG_JOLIET=y
-CONFIG_ZISOFS=y
-CONFIG_UDF_FS=m
-CONFIG_UDF_NLS=y
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=m
-CONFIG_MSDOS_FS=m
-CONFIG_VFAT_FS=m
-CONFIG_FAT_DEFAULT_CODEPAGE=437
-CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-CONFIG_TMPFS_POSIX_ACL=y
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-CONFIG_CONFIGFS_FS=m
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-CONFIG_AFFS_FS=m
-CONFIG_HFS_FS=m
-CONFIG_HFSPLUS_FS=m
-CONFIG_BEFS_FS=m
-# CONFIG_BEFS_DEBUG is not set
-CONFIG_BFS_FS=m
-CONFIG_EFS_FS=m
-CONFIG_CRAMFS=m
-CONFIG_VXFS_FS=m
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-CONFIG_SYSV_FS=m
-CONFIG_UFS_FS=m
-# CONFIG_UFS_FS_WRITE is not set
-# CONFIG_UFS_DEBUG is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-CONFIG_NFSD=y
-CONFIG_NFSD_V3=y
-# CONFIG_NFSD_V3_ACL is not set
-# CONFIG_NFSD_V4 is not set
-# CONFIG_NFSD_TCP is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_EXPORTFS=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_RPCSEC_GSS_SPKM3 is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-# CONFIG_9P_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS=m
-CONFIG_NLS_DEFAULT="iso8859-1"
-CONFIG_NLS_CODEPAGE_437=m
-CONFIG_NLS_CODEPAGE_737=m
-CONFIG_NLS_CODEPAGE_775=m
-CONFIG_NLS_CODEPAGE_850=m
-CONFIG_NLS_CODEPAGE_852=m
-CONFIG_NLS_CODEPAGE_855=m
-CONFIG_NLS_CODEPAGE_857=m
-CONFIG_NLS_CODEPAGE_860=m
-CONFIG_NLS_CODEPAGE_861=m
-CONFIG_NLS_CODEPAGE_862=m
-CONFIG_NLS_CODEPAGE_863=m
-CONFIG_NLS_CODEPAGE_864=m
-CONFIG_NLS_CODEPAGE_865=m
-CONFIG_NLS_CODEPAGE_866=m
-CONFIG_NLS_CODEPAGE_869=m
-CONFIG_NLS_CODEPAGE_936=m
-CONFIG_NLS_CODEPAGE_950=m
-CONFIG_NLS_CODEPAGE_932=m
-CONFIG_NLS_CODEPAGE_949=m
-CONFIG_NLS_CODEPAGE_874=m
-CONFIG_NLS_ISO8859_8=m
-CONFIG_NLS_CODEPAGE_1250=m
-CONFIG_NLS_CODEPAGE_1251=m
-CONFIG_NLS_ASCII=m
-CONFIG_NLS_ISO8859_1=m
-CONFIG_NLS_ISO8859_2=m
-CONFIG_NLS_ISO8859_3=m
-CONFIG_NLS_ISO8859_4=m
-CONFIG_NLS_ISO8859_5=m
-CONFIG_NLS_ISO8859_6=m
-CONFIG_NLS_ISO8859_7=m
-CONFIG_NLS_ISO8859_9=m
-CONFIG_NLS_ISO8859_13=m
-CONFIG_NLS_ISO8859_14=m
-CONFIG_NLS_ISO8859_15=m
-CONFIG_NLS_KOI8_R=m
-CONFIG_NLS_KOI8_U=m
-CONFIG_NLS_UTF8=m
-
-#
-# Distributed Lock Manager
-#
-CONFIG_DLM=m
-CONFIG_DLM_TCP=y
-# CONFIG_DLM_SCTP is not set
-# CONFIG_DLM_DEBUG is not set
-
-#
-# Profiling support
-#
-# CONFIG_PROFILING is not set
-
-#
-# Kernel hacking
-#
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_MUST_CHECK=y
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
-# CONFIG_HEADERS_CHECK is not set
-# CONFIG_DEBUG_KERNEL is not set
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_CROSSCOMPILE=y
-CONFIG_CMDLINE=""
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_ALGAPI=y
-CONFIG_CRYPTO_BLKCIPHER=m
-CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_MANAGER=y
-CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_XCBC=m
-CONFIG_CRYPTO_NULL=m
-CONFIG_CRYPTO_MD4=m
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_SHA1=m
-CONFIG_CRYPTO_SHA256=m
-CONFIG_CRYPTO_SHA512=m
-CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_TGR192=m
-CONFIG_CRYPTO_GF128MUL=m
-CONFIG_CRYPTO_ECB=m
-CONFIG_CRYPTO_CBC=m
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_LRW=m
-CONFIG_CRYPTO_DES=m
-CONFIG_CRYPTO_FCRYPT=m
-CONFIG_CRYPTO_BLOWFISH=m
-CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_TWOFISH_COMMON=m
-CONFIG_CRYPTO_SERPENT=m
-CONFIG_CRYPTO_AES=m
-CONFIG_CRYPTO_CAST5=m
-CONFIG_CRYPTO_CAST6=m
-CONFIG_CRYPTO_TEA=m
-CONFIG_CRYPTO_ARC4=m
-CONFIG_CRYPTO_KHAZAD=m
-CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_DEFLATE=m
-CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_CRC32C=m
-CONFIG_CRYPTO_CAMELLIA=m
-# CONFIG_CRYPTO_TEST is not set
-
-#
-# Hardware crypto devices
-#
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-CONFIG_CRC16=m
-CONFIG_CRC32=y
-CONFIG_LIBCRC32C=m
-CONFIG_ZLIB_INFLATE=m
-CONFIG_ZLIB_DEFLATE=m
-CONFIG_TEXTSEARCH=y
-CONFIG_TEXTSEARCH_KMP=m
-CONFIG_TEXTSEARCH_BM=m
-CONFIG_TEXTSEARCH_FSM=m
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
diff --git a/arch/mips/configs/bcm47xx_defconfig b/arch/mips/configs/bcm47xx_defconfig
index c0e42e74dfb..d8694332b34 100644
--- a/arch/mips/configs/bcm47xx_defconfig
+++ b/arch/mips/configs/bcm47xx_defconfig
@@ -16,9 +16,7 @@ CONFIG_BCM47XX=y
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index 3b42cea2e40..a3bbbf067a3 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.25-rc7
-# Mon Mar 31 08:11:19 2008
+# Linux kernel version: 2.6.26-rc8
+# Wed Jul  2 17:02:55 2008
 #
 CONFIG_MIPS=y
 
@@ -16,9 +16,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
@@ -148,6 +146,7 @@ CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
 # CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_RESOURCES_64BIT=y
 CONFIG_ZONE_DMA_FLAG=0
@@ -156,6 +155,7 @@ CONFIG_SMP=y
 CONFIG_SYS_SUPPORTS_SMP=y
 CONFIG_NR_CPUS_DEFAULT_4=y
 CONFIG_NR_CPUS=4
+# CONFIG_MIPS_CMP is not set
 CONFIG_TICK_ONESHOT=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
@@ -223,6 +223,7 @@ CONFIG_HOTPLUG=y
 CONFIG_PRINTK=y
 CONFIG_BUG=y
 CONFIG_ELF_CORE=y
+# CONFIG_PCSPKR_PLATFORM is not set
 CONFIG_COMPAT_BRK=y
 CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
@@ -241,12 +242,14 @@ CONFIG_SLAB=y
 CONFIG_HAVE_OPROFILE=y
 # CONFIG_HAVE_KPROBES is not set
 # CONFIG_HAVE_KRETPROBES is not set
+# CONFIG_HAVE_DMA_ATTRS is not set
 CONFIG_PROC_PAGE_MONITOR=y
 CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=0
 CONFIG_MODULES=y
+# CONFIG_MODULE_FORCE_LOAD is not set
 CONFIG_MODULE_UNLOAD=y
 # CONFIG_MODULE_FORCE_UNLOAD is not set
 CONFIG_MODVERSIONS=y
@@ -302,7 +305,6 @@ CONFIG_BINFMT_ELF32=y
 # Power management options
 #
 CONFIG_PM=y
-# CONFIG_PM_LEGACY is not set
 # CONFIG_PM_DEBUG is not set
 
 #
@@ -399,9 +401,11 @@ CONFIG_INET6_XFRM_MODE_TUNNEL=m
 CONFIG_INET6_XFRM_MODE_BEET=m
 CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
 CONFIG_IPV6_SIT=m
+CONFIG_IPV6_NDISC_NODETYPE=y
 CONFIG_IPV6_TUNNEL=m
 CONFIG_IPV6_MULTIPLE_TABLES=y
 CONFIG_IPV6_SUBTREES=y
+# CONFIG_IPV6_MROUTE is not set
 CONFIG_NETWORK_SECMARK=y
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_DEBUG is not set
@@ -600,7 +604,7 @@ CONFIG_BLK_DEV_IT8213=m
 CONFIG_BLK_DEV_TC86C001=m
 # CONFIG_BLK_DEV_IDE_SWARM is not set
 CONFIG_BLK_DEV_IDEDMA=y
-CONFIG_IDE_ARCH_OBSOLETE_INIT=y
+# CONFIG_BLK_DEV_HD_ONLY is not set
 # CONFIG_BLK_DEV_HD is not set
 
 #
@@ -617,11 +621,12 @@ CONFIG_SCSI_PROC_FS=y
 # SCSI support type (disk, tape, CD-ROM)
 #
 CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
+CONFIG_CHR_DEV_ST=m
 # CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
+CONFIG_BLK_DEV_SR=m
+CONFIG_BLK_DEV_SR_VENDOR=y
+CONFIG_CHR_DEV_SG=m
+CONFIG_CHR_DEV_SCH=m
 
 #
 # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
@@ -650,6 +655,7 @@ CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_SCSI_AIC7XXX_OLD is not set
 # CONFIG_SCSI_AIC79XX is not set
 # CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_DPT_I2O is not set
 # CONFIG_SCSI_ADVANSYS is not set
 # CONFIG_SCSI_ARCMSR is not set
 # CONFIG_MEGARAID_NEWGEN is not set
@@ -675,7 +681,10 @@ CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_SCSI_SRP is not set
 CONFIG_ATA=y
 # CONFIG_ATA_NONSTANDARD is not set
+CONFIG_SATA_PMP=y
 # CONFIG_SATA_AHCI is not set
+CONFIG_SATA_SIL24=y
+CONFIG_ATA_SFF=y
 # CONFIG_SATA_SVW is not set
 # CONFIG_ATA_PIIX is not set
 # CONFIG_SATA_MV is not set
@@ -685,7 +694,6 @@ CONFIG_ATA=y
 # CONFIG_SATA_PROMISE is not set
 # CONFIG_SATA_SX4 is not set
 # CONFIG_SATA_SIL is not set
-CONFIG_SATA_SIL24=y
 # CONFIG_SATA_SIS is not set
 # CONFIG_SATA_ULI is not set
 # CONFIG_SATA_VIA is not set
@@ -730,12 +738,17 @@ CONFIG_PATA_SIL680=y
 # CONFIG_PATA_VIA is not set
 # CONFIG_PATA_WINBOND is not set
 # CONFIG_PATA_PLATFORM is not set
+# CONFIG_PATA_SCH is not set
 # CONFIG_MD is not set
 # CONFIG_FUSION is not set
 
 #
 # IEEE 1394 (FireWire) support
 #
+
+#
+# Enable only one of the two stacks, unless you know what you are doing
+#
 # CONFIG_FIREWIRE is not set
 # CONFIG_IEEE1394 is not set
 # CONFIG_I2O is not set
@@ -797,7 +810,6 @@ CONFIG_SB1250_MAC=y
 # CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
 # CONFIG_SKY2 is not set
-# CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
 # CONFIG_TIGON3 is not set
 # CONFIG_BNX2 is not set
@@ -815,6 +827,7 @@ CONFIG_NETXEN_NIC=m
 # CONFIG_MLX4_CORE is not set
 # CONFIG_TEHUTI is not set
 # CONFIG_BNX2X is not set
+# CONFIG_SFC is not set
 # CONFIG_TR is not set
 
 #
@@ -822,6 +835,7 @@ CONFIG_NETXEN_NIC=m
 #
 # CONFIG_WLAN_PRE80211 is not set
 # CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI_LEDS is not set
 # CONFIG_WAN is not set
 # CONFIG_FDDI is not set
 # CONFIG_HIPPI is not set
@@ -867,6 +881,7 @@ CONFIG_SERIO_RAW=m
 # Character devices
 #
 # CONFIG_VT is not set
+CONFIG_DEVKMEM=y
 CONFIG_SERIAL_NONSTANDARD=y
 # CONFIG_COMPUTONE is not set
 # CONFIG_ROCKETPORT is not set
@@ -903,7 +918,6 @@ CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
 # CONFIG_HW_RANDOM is not set
-# CONFIG_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
 # CONFIG_RAW_DRIVER is not set
@@ -914,13 +928,6 @@ CONFIG_I2C_BOARDINFO=y
 CONFIG_I2C_CHARDEV=y
 
 #
-# I2C Algorithms
-#
-# CONFIG_I2C_ALGOBIT is not set
-# CONFIG_I2C_ALGOPCF is not set
-# CONFIG_I2C_ALGOPCA is not set
-
-#
 # I2C Hardware Bus support
 #
 # CONFIG_I2C_ALI1535 is not set
@@ -946,6 +953,7 @@ CONFIG_I2C_SIBYTE=y
 # CONFIG_I2C_VIA is not set
 # CONFIG_I2C_VIAPRO is not set
 # CONFIG_I2C_VOODOO3 is not set
+# CONFIG_I2C_PCA_PLATFORM is not set
 
 #
 # Miscellaneous I2C Chip support
@@ -955,23 +963,18 @@ CONFIG_SENSORS_EEPROM=y
 CONFIG_SENSORS_PCF8574=y
 # CONFIG_PCF8575 is not set
 CONFIG_SENSORS_PCF8591=y
-# CONFIG_TPS65010 is not set
 CONFIG_SENSORS_MAX6875=y
 # CONFIG_SENSORS_TSL2550 is not set
 CONFIG_I2C_DEBUG_CORE=y
 CONFIG_I2C_DEBUG_ALGO=y
 CONFIG_I2C_DEBUG_BUS=y
 CONFIG_I2C_DEBUG_CHIP=y
-
-#
-# SPI support
-#
 # CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
 # CONFIG_THERMAL is not set
+# CONFIG_THERMAL_HWMON is not set
 # CONFIG_WATCHDOG is not set
 
 #
@@ -984,12 +987,22 @@ CONFIG_SSB_POSSIBLE=y
 # Multifunction device drivers
 #
 # CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
 
 #
 # Multimedia devices
 #
+
+#
+# Multimedia core support
+#
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
+# CONFIG_VIDEO_MEDIA is not set
+
+#
+# Multimedia drivers
+#
 # CONFIG_DAB is not set
 
 #
@@ -1015,6 +1028,8 @@ CONFIG_USB_ARCH_HAS_HCD=y
 CONFIG_USB_ARCH_HAS_OHCI=y
 CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_USB is not set
+# CONFIG_USB_OTG_WHITELIST is not set
+# CONFIG_USB_OTG_BLACKLIST_HUB is not set
 
 #
 # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
@@ -1023,13 +1038,10 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_MMC is not set
 # CONFIG_MEMSTICK is not set
 # CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
 # CONFIG_INFINIBAND is not set
 CONFIG_RTC_LIB=y
 # CONFIG_RTC_CLASS is not set
-
-#
-# Userspace I/O
-#
 # CONFIG_UIO is not set
 
 #
@@ -1123,7 +1135,6 @@ CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 # CONFIG_NFS_V3_ACL is not set
 # CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
 # CONFIG_NFSD is not set
 CONFIG_ROOT_NFS=y
 CONFIG_LOCKD=y
@@ -1194,6 +1205,7 @@ CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 # CONFIG_PRINTK_TIME is not set
 CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=2048
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
 # CONFIG_DEBUG_FS is not set
@@ -1204,6 +1216,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_OBJECTS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
@@ -1217,6 +1230,7 @@ CONFIG_DEBUG_MUTEXES=y
 # CONFIG_DEBUG_KOBJECT is not set
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_WRITECOUNT is not set
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_DEBUG_SG is not set
 # CONFIG_BOOT_PRINTK_DELAY is not set
@@ -1237,53 +1251,82 @@ CONFIG_KEYS_DEBUG_PROC_KEYS=y
 # CONFIG_SECURITY is not set
 # CONFIG_SECURITY_FILE_CAPABILITIES is not set
 CONFIG_CRYPTO=y
+
+#
+# Crypto core or helper
+#
 CONFIG_CRYPTO_ALGAPI=y
 CONFIG_CRYPTO_AEAD=m
 CONFIG_CRYPTO_BLKCIPHER=y
-CONFIG_CRYPTO_SEQIV=m
 CONFIG_CRYPTO_HASH=y
 CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_GF128MUL=m
+CONFIG_CRYPTO_NULL=y
+# CONFIG_CRYPTO_CRYPTD is not set
+CONFIG_CRYPTO_AUTHENC=m
+# CONFIG_CRYPTO_TEST is not set
+
+#
+# Authenticated Encryption with Associated Data
+#
+CONFIG_CRYPTO_CCM=m
+CONFIG_CRYPTO_GCM=m
+CONFIG_CRYPTO_SEQIV=m
+
+#
+# Block modes
+#
+CONFIG_CRYPTO_CBC=m
+CONFIG_CRYPTO_CTR=m
+# CONFIG_CRYPTO_CTS is not set
+CONFIG_CRYPTO_ECB=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_XTS=m
+
+#
+# Hash modes
+#
 CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_XCBC=m
-CONFIG_CRYPTO_NULL=y
+
+#
+# Digest
+#
+# CONFIG_CRYPTO_CRC32C is not set
 CONFIG_CRYPTO_MD4=m
 CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
 CONFIG_CRYPTO_SHA1=m
 CONFIG_CRYPTO_SHA256=m
 CONFIG_CRYPTO_SHA512=m
-CONFIG_CRYPTO_WP512=m
 CONFIG_CRYPTO_TGR192=m
-CONFIG_CRYPTO_GF128MUL=m
-CONFIG_CRYPTO_ECB=m
-CONFIG_CRYPTO_CBC=m
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_LRW=m
-CONFIG_CRYPTO_XTS=m
-CONFIG_CRYPTO_CTR=m
-CONFIG_CRYPTO_GCM=m
-CONFIG_CRYPTO_CCM=m
-# CONFIG_CRYPTO_CRYPTD is not set
-CONFIG_CRYPTO_DES=m
-CONFIG_CRYPTO_FCRYPT=m
-CONFIG_CRYPTO_BLOWFISH=m
-CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_TWOFISH_COMMON=m
-CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_WP512=m
+
+#
+# Ciphers
+#
 CONFIG_CRYPTO_AES=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAMELLIA=m
 CONFIG_CRYPTO_CAST5=m
 CONFIG_CRYPTO_CAST6=m
-CONFIG_CRYPTO_TEA=m
-CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_DES=m
+CONFIG_CRYPTO_FCRYPT=m
 CONFIG_CRYPTO_KHAZAD=m
-CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_SALSA20=m
+CONFIG_CRYPTO_SEED=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_TWOFISH_COMMON=m
+
+#
+# Compression
+#
 CONFIG_CRYPTO_DEFLATE=m
-CONFIG_CRYPTO_MICHAEL_MIC=m
-# CONFIG_CRYPTO_CRC32C is not set
-CONFIG_CRYPTO_CAMELLIA=m
-# CONFIG_CRYPTO_TEST is not set
-CONFIG_CRYPTO_AUTHENC=m
 # CONFIG_CRYPTO_LZO is not set
 CONFIG_CRYPTO_HW=y
 # CONFIG_CRYPTO_DEV_HIFN_795X is not set
@@ -1292,9 +1335,10 @@ CONFIG_CRYPTO_HW=y
 # Library routines
 #
 CONFIG_BITREVERSE=y
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
 CONFIG_CRC_CCITT=m
 # CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC_ITU_T=m
 CONFIG_CRC32=y
 # CONFIG_CRC7 is not set
 CONFIG_LIBCRC32C=m
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index a94f14b5c8f..185df23fd46 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -14,9 +14,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 CONFIG_MACH_VR41XX=y
diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig
index b7295e98838..2678b7ec335 100644
--- a/arch/mips/configs/cobalt_defconfig
+++ b/arch/mips/configs/cobalt_defconfig
@@ -14,9 +14,7 @@ CONFIG_MIPS_COBALT=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig
index 36578968d38..ebb8ad62b3a 100644
--- a/arch/mips/configs/db1000_defconfig
+++ b/arch/mips/configs/db1000_defconfig
@@ -27,9 +27,7 @@ CONFIG_MIPS_DB1000=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/db1100_defconfig b/arch/mips/configs/db1100_defconfig
index 5a90740c363..ad4e5ef6559 100644
--- a/arch/mips/configs/db1100_defconfig
+++ b/arch/mips/configs/db1100_defconfig
@@ -27,9 +27,7 @@ CONFIG_MIPS_DB1100=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig
index 76f37a1159f..d0dc2e83ad3 100644
--- a/arch/mips/configs/db1200_defconfig
+++ b/arch/mips/configs/db1200_defconfig
@@ -27,9 +27,7 @@ CONFIG_MIPS_DB1200=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/db1500_defconfig b/arch/mips/configs/db1500_defconfig
index 508c91944f3..9155082313c 100644
--- a/arch/mips/configs/db1500_defconfig
+++ b/arch/mips/configs/db1500_defconfig
@@ -27,9 +27,7 @@ CONFIG_MIPS_DB1500=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig
index 0c2c70d21db..e4e324422cd 100644
--- a/arch/mips/configs/db1550_defconfig
+++ b/arch/mips/configs/db1550_defconfig
@@ -27,9 +27,7 @@ CONFIG_MIPS_DB1550=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig
index 58c2cd68c3a..9e65e6a2dcb 100644
--- a/arch/mips/configs/decstation_defconfig
+++ b/arch/mips/configs/decstation_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 CONFIG_MACH_DECSTATION=y
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index 90d81f5dceb..1bd84d42b14 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -14,9 +14,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 CONFIG_MACH_VR41XX=y
diff --git a/arch/mips/configs/emma2rh_defconfig b/arch/mips/configs/emma2rh_defconfig
index f9a003c2b3a..634bb4eaf13 100644
--- a/arch/mips/configs/emma2rh_defconfig
+++ b/arch/mips/configs/emma2rh_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/excite_defconfig b/arch/mips/configs/excite_defconfig
index 15efacc75d7..3572e80356d 100644
--- a/arch/mips/configs/excite_defconfig
+++ b/arch/mips/configs/excite_defconfig
@@ -27,9 +27,7 @@ CONFIG_BASLER_EXCITE=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/fulong_defconfig b/arch/mips/configs/fulong_defconfig
index 5887a1735fb..620980081a3 100644
--- a/arch/mips/configs/fulong_defconfig
+++ b/arch/mips/configs/fulong_defconfig
@@ -14,9 +14,7 @@ CONFIG_LEMOTE_FULONG=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_PNX8550_JBS is not set
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index 4f5e56c9335..cc8e6bf2b24 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -15,9 +15,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig
index f40e437bd9e..138c575a015 100644
--- a/arch/mips/configs/ip27_defconfig
+++ b/arch/mips/configs/ip27_defconfig
@@ -14,9 +14,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/ip28_defconfig b/arch/mips/configs/ip28_defconfig
index ec188be9a67..822b01f643e 100644
--- a/arch/mips/configs/ip28_defconfig
+++ b/arch/mips/configs/ip28_defconfig
@@ -16,9 +16,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig
index 2c5c624c5d4..fe4699df962 100644
--- a/arch/mips/configs/ip32_defconfig
+++ b/arch/mips/configs/ip32_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig
index 56148745e8f..bbacc35d804 100644
--- a/arch/mips/configs/jazz_defconfig
+++ b/arch/mips/configs/jazz_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 CONFIG_MACH_JAZZ=y
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index a7cd67753aa..9d5bd2a0af3 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.23-rc1
-# Thu Aug  2 23:07:36 2007
+# Linux kernel version: 2.6.26-rc9
+# Fri Jul 11 23:01:36 2008
 #
 CONFIG_MIPS=y
 
@@ -10,13 +10,13 @@ CONFIG_MIPS=y
 #
 # CONFIG_MACH_ALCHEMY is not set
 # CONFIG_BASLER_EXCITE is not set
+# CONFIG_BCM47XX is not set
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
+# CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
@@ -26,6 +26,7 @@ CONFIG_MIPS=y
 # CONFIG_PMC_YOSEMITE is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
+# CONFIG_SGI_IP28 is not set
 # CONFIG_SGI_IP32 is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CARMEL is not set
@@ -36,28 +37,37 @@ CONFIG_MIPS=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
-CONFIG_TOSHIBA_JMR3927=y
-# CONFIG_TOSHIBA_RBTX4927 is not set
-# CONFIG_TOSHIBA_RBTX4938 is not set
+CONFIG_MACH_TX39XX=y
+# CONFIG_MACH_TX49XX is not set
 # CONFIG_WR_PPMC is not set
+CONFIG_TOSHIBA_JMR3927=y
+CONFIG_SOC_TX3927=y
+# CONFIG_TOSHIBA_FPCIB0 is not set
+CONFIG_PICMG_PCI_BACKPLANE_DEFAULT=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 # CONFIG_ARCH_HAS_ILOG2_U32 is not set
 # CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_SUPPORTS_OPROFILE=y
 CONFIG_GENERIC_FIND_NEXT_BIT=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_CLOCKEVENTS=y
 CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CMOS_UPDATE=y
 CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
 CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
+CONFIG_CEVT_TXX9=y
+CONFIG_GPIO_TXX9=y
 CONFIG_DMA_NONCOHERENT=y
 CONFIG_DMA_NEED_PCI_MAP_STATE=y
+# CONFIG_HOTPLUG_CPU is not set
 # CONFIG_NO_IOPORT is not set
+CONFIG_GENERIC_GPIO=y
 CONFIG_CPU_BIG_ENDIAN=y
 # CONFIG_CPU_LITTLE_ENDIAN is not set
 CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
 CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
 CONFIG_IRQ_TXX9=y
-CONFIG_MIPS_TX3927=y
 CONFIG_SWAP_IO_SPACE=y
 CONFIG_MIPS_L1_CACHE_SHIFT=5
 
@@ -104,13 +114,20 @@ CONFIG_CPU_HAS_SYNC=y
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=0
 CONFIG_VIRT_TO_BUS=y
+# CONFIG_TICK_ONESHOT is not set
+# CONFIG_NO_HZ is not set
+# CONFIG_HIGH_RES_TIMERS is not set
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
 # CONFIG_HZ_48 is not set
 # CONFIG_HZ_100 is not set
 # CONFIG_HZ_128 is not set
@@ -144,18 +161,25 @@ CONFIG_SYSVIPC_SYSCTL=y
 # CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
 CONFIG_SYSFS_DEPRECATED=y
+CONFIG_SYSFS_DEPRECATED_V2=y
 # CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
 # CONFIG_BLK_DEV_INITRD is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
 CONFIG_EMBEDDED=y
 CONFIG_SYSCTL_SYSCALL=y
+CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
 # CONFIG_HOTPLUG is not set
 CONFIG_PRINTK=y
 CONFIG_BUG=y
 CONFIG_ELF_CORE=y
+# CONFIG_PCSPKR_PLATFORM is not set
+CONFIG_COMPAT_BRK=y
 CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
 CONFIG_ANON_INODES=y
@@ -168,6 +192,14 @@ CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_SLAB=y
 # CONFIG_SLUB is not set
 # CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+CONFIG_HAVE_OPROFILE=y
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_HAVE_KRETPROBES is not set
+# CONFIG_HAVE_DMA_ATTRS is not set
+CONFIG_PROC_PAGE_MONITOR=y
+CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=0
@@ -189,20 +221,19 @@ CONFIG_IOSCHED_CFQ=y
 CONFIG_DEFAULT_CFQ=y
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="cfq"
+CONFIG_CLASSIC_RCU=y
 
 #
 # Bus options (PCI, PCMCIA, EISA, ISA, TC)
 #
 CONFIG_HW_HAS_PCI=y
 CONFIG_PCI=y
+CONFIG_PCI_DOMAINS=y
 # CONFIG_ARCH_SUPPORTS_MSI is not set
+CONFIG_PCI_LEGACY=y
 CONFIG_MMU=y
 
 #
-# PCCARD (PCMCIA/CardBus) support
-#
-
-#
 # Executable file formats
 #
 CONFIG_BINFMT_ELF=y
@@ -212,6 +243,7 @@ CONFIG_TRAD_SIGNALS=y
 #
 # Power management options
 #
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
 # CONFIG_PM is not set
 
 #
@@ -245,25 +277,21 @@ CONFIG_IP_PNP_BOOTP=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_CUBIC=y
 CONFIG_DEFAULT_TCP_CONG="cubic"
 # CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
 # CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETFILTER is not set
+# CONFIG_ATM is not set
 # CONFIG_BRIDGE is not set
 # CONFIG_VLAN_8021Q is not set
 # CONFIG_DECNET is not set
 # CONFIG_LLC2 is not set
 # CONFIG_IPX is not set
 # CONFIG_ATALK is not set
-
-#
-# QoS and/or fair queueing
-#
 # CONFIG_NET_SCHED is not set
 
 #
@@ -271,6 +299,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 #
 # CONFIG_NET_PKTGEN is not set
 # CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
 
@@ -279,6 +308,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 #
 # CONFIG_CFG80211 is not set
 # CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
 # CONFIG_IEEE80211 is not set
 # CONFIG_RFKILL is not set
 
@@ -307,6 +337,7 @@ CONFIG_BLK_DEV=y
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
 # CONFIG_MISC_DEVICES is not set
+CONFIG_HAVE_IDE=y
 # CONFIG_IDE is not set
 
 #
@@ -318,10 +349,6 @@ CONFIG_BLK_DEV=y
 # CONFIG_SCSI_NETLINK is not set
 # CONFIG_ATA is not set
 # CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
 # CONFIG_FUSION is not set
 
 #
@@ -329,7 +356,7 @@ CONFIG_BLK_DEV=y
 #
 
 #
-# An alternative FireWire stack is available with EXPERIMENTAL=y
+# A new alternative FireWire stack is available with EXPERIMENTAL=y
 #
 # CONFIG_IEEE1394 is not set
 # CONFIG_I2O is not set
@@ -339,10 +366,27 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_VETH is not set
 # CONFIG_ARCNET is not set
-# CONFIG_PHYLIB is not set
+CONFIG_PHYLIB=y
+
+#
+# MII PHY device drivers
+#
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_LXT_PHY is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_BROADCOM_PHY is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_REALTEK_PHY is not set
+# CONFIG_FIXED_PHY is not set
+# CONFIG_MDIO_BITBANG is not set
 CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
+# CONFIG_MII is not set
 # CONFIG_AX88796 is not set
 # CONFIG_HAPPYMEAL is not set
 # CONFIG_SUNGEM is not set
@@ -351,6 +395,10 @@ CONFIG_MII=y
 # CONFIG_DM9000 is not set
 # CONFIG_NET_TULIP is not set
 # CONFIG_HP100 is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
 CONFIG_NET_PCI=y
 # CONFIG_PCNET32 is not set
 # CONFIG_AMD8111_ETH is not set
@@ -358,13 +406,13 @@ CONFIG_NET_PCI=y
 # CONFIG_B44 is not set
 # CONFIG_FORCEDETH is not set
 CONFIG_TC35815=y
-# CONFIG_DGRS is not set
 # CONFIG_EEPRO100 is not set
 # CONFIG_E100 is not set
 # CONFIG_FEALNX is not set
 # CONFIG_NATSEMI is not set
 # CONFIG_NE2K_PCI is not set
 # CONFIG_8139TOO is not set
+# CONFIG_R6040 is not set
 # CONFIG_SIS900 is not set
 # CONFIG_EPIC100 is not set
 # CONFIG_SUNDANCE is not set
@@ -379,6 +427,7 @@ CONFIG_TC35815=y
 #
 # CONFIG_WLAN_PRE80211 is not set
 # CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI_LEDS is not set
 # CONFIG_WAN is not set
 # CONFIG_FDDI is not set
 # CONFIG_PPP is not set
@@ -400,7 +449,6 @@ CONFIG_INPUT=y
 #
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
 # CONFIG_INPUT_EVDEV is not set
 # CONFIG_INPUT_EVBUG is not set
 
@@ -424,6 +472,7 @@ CONFIG_INPUT=y
 # Character devices
 #
 # CONFIG_VT is not set
+CONFIG_DEVKMEM=y
 CONFIG_SERIAL_NONSTANDARD=y
 # CONFIG_COMPUTONE is not set
 # CONFIG_ROCKETPORT is not set
@@ -431,7 +480,6 @@ CONFIG_SERIAL_NONSTANDARD=y
 # CONFIG_DIGIEPCA is not set
 # CONFIG_MOXA_INTELLIO is not set
 # CONFIG_MOXA_SMARTIO is not set
-# CONFIG_MOXA_SMARTIO_NEW is not set
 # CONFIG_ISI is not set
 # CONFIG_SYNCLINKMP is not set
 # CONFIG_SYNCLINK_GT is not set
@@ -463,22 +511,30 @@ CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
 # CONFIG_HW_RANDOM is not set
-# CONFIG_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
 # CONFIG_RAW_DRIVER is not set
 CONFIG_DEVPORT=y
 # CONFIG_I2C is not set
+# CONFIG_SPI is not set
+CONFIG_HAVE_GPIO_LIB=y
 
 #
-# SPI support
+# GPIO Support
+#
+
+#
+# I2C GPIO expanders:
+#
+
+#
+# SPI GPIO expanders:
 #
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_THERMAL_HWMON is not set
 CONFIG_WATCHDOG=y
 # CONFIG_WATCHDOG_NOWAYOUT is not set
 
@@ -495,29 +551,46 @@ CONFIG_TXX9_WDT=y
 # CONFIG_WDTPCI is not set
 
 #
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
 # Multifunction device drivers
 #
 # CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
 
 #
 # Multimedia devices
 #
+
+#
+# Multimedia core support
+#
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
+# CONFIG_VIDEO_MEDIA is not set
+
+#
+# Multimedia drivers
+#
 # CONFIG_DAB is not set
 
 #
 # Graphics support
 #
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_VIDEO_OUTPUT_CONTROL is not set
-# CONFIG_FB is not set
 
 #
 # Sound
@@ -526,7 +599,9 @@ CONFIG_TXX9_WDT=y
 # CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 # CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
 # CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
 # CONFIG_INFINIBAND is not set
 CONFIG_RTC_LIB=y
 CONFIG_RTC_CLASS=y
@@ -551,9 +626,10 @@ CONFIG_RTC_INTF_DEV=y
 # Platform RTC drivers
 #
 # CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1511 is not set
 # CONFIG_RTC_DRV_DS1553 is not set
-# CONFIG_RTC_DRV_STK17TA8 is not set
 CONFIG_RTC_DRV_DS1742=y
+# CONFIG_RTC_DRV_STK17TA8 is not set
 # CONFIG_RTC_DRV_M48T86 is not set
 # CONFIG_RTC_DRV_M48T59 is not set
 # CONFIG_RTC_DRV_V3020 is not set
@@ -561,23 +637,6 @@ CONFIG_RTC_DRV_DS1742=y
 #
 # on-CPU RTC drivers
 #
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
-# Userspace I/O
-#
 # CONFIG_UIO is not set
 
 #
@@ -590,12 +649,10 @@ CONFIG_RTC_DRV_DS1742=y
 # CONFIG_FS_POSIX_ACL is not set
 # CONFIG_XFS_FS is not set
 # CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
+CONFIG_DNOTIFY=y
 CONFIG_INOTIFY=y
 CONFIG_INOTIFY_USER=y
 # CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
 # CONFIG_AUTOFS_FS is not set
 # CONFIG_AUTOFS4_FS is not set
 # CONFIG_FUSE_FS is not set
@@ -622,7 +679,7 @@ CONFIG_PROC_SYSCTL=y
 CONFIG_SYSFS=y
 # CONFIG_TMPFS is not set
 # CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
+# CONFIG_CONFIGFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -630,17 +687,15 @@ CONFIG_RAMFS=y
 # CONFIG_HFSPLUS_FS is not set
 # CONFIG_CRAMFS is not set
 # CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
 # CONFIG_HPFS_FS is not set
 # CONFIG_QNX4FS_FS is not set
+# CONFIG_ROMFS_FS is not set
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
+CONFIG_NETWORK_FILESYSTEMS=y
 CONFIG_NFS_FS=y
 # CONFIG_NFS_V3 is not set
-# CONFIG_NFS_DIRECTIO is not set
 # CONFIG_NFSD is not set
 CONFIG_ROOT_NFS=y
 CONFIG_LOCKD=y
@@ -656,10 +711,6 @@ CONFIG_SUNRPC=y
 #
 # CONFIG_PARTITION_ADVANCED is not set
 CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
 # CONFIG_NLS is not set
 
 #
@@ -667,13 +718,15 @@ CONFIG_MSDOS_PARTITION=y
 #
 CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 # CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
 # CONFIG_MAGIC_SYSRQ is not set
 # CONFIG_UNUSED_SYMBOLS is not set
 # CONFIG_DEBUG_FS is not set
 # CONFIG_HEADERS_CHECK is not set
 # CONFIG_DEBUG_KERNEL is not set
-CONFIG_CROSSCOMPILE=y
+# CONFIG_SAMPLES is not set
 CONFIG_CMDLINE=""
 
 #
@@ -687,6 +740,7 @@ CONFIG_CMDLINE=""
 # Library routines
 #
 CONFIG_BITREVERSE=y
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
 # CONFIG_CRC_CCITT is not set
 # CONFIG_CRC16 is not set
 # CONFIG_CRC_ITU_T is not set
diff --git a/arch/mips/configs/lasat_defconfig b/arch/mips/configs/lasat_defconfig
index e6aef999854..bc9159fda72 100644
--- a/arch/mips/configs/lasat_defconfig
+++ b/arch/mips/configs/lasat_defconfig
@@ -15,9 +15,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_JAZZ is not set
 CONFIG_LASAT=y
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index 3d0da952811..74daa0cf87e 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -15,9 +15,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 CONFIG_MIPS_MALTA=y
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
@@ -68,7 +66,6 @@ CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
 CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
 CONFIG_IRQ_CPU=y
-CONFIG_MIPS_BOARDS_GEN=y
 CONFIG_PCI_GT64XXX_PCI0=y
 CONFIG_SWAP_IO_SPACE=y
 CONFIG_BOOT_ELF32=y
diff --git a/arch/mips/configs/mipssim_defconfig b/arch/mips/configs/mipssim_defconfig
index 4f6bce99d5c..2c0a6314e90 100644
--- a/arch/mips/configs/mipssim_defconfig
+++ b/arch/mips/configs/mipssim_defconfig
@@ -16,9 +16,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 CONFIG_MIPS_SIM=y
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index 27e23fc9363..8c720e51795 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -14,9 +14,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 CONFIG_MACH_VR41XX=y
diff --git a/arch/mips/configs/msp71xx_defconfig b/arch/mips/configs/msp71xx_defconfig
index b12b73f6d74..59d19472b16 100644
--- a/arch/mips/configs/msp71xx_defconfig
+++ b/arch/mips/configs/msp71xx_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index fa3aa391944..bacf0dd0e34 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -14,9 +14,7 @@ CONFIG_MACH_ALCHEMY=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig
index 1d0157d3a5b..6dfe6f793ce 100644
--- a/arch/mips/configs/pb1100_defconfig
+++ b/arch/mips/configs/pb1100_defconfig
@@ -27,9 +27,7 @@ CONFIG_MIPS_PB1100=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig
index d0491a05ee5..c965a87e6a9 100644
--- a/arch/mips/configs/pb1500_defconfig
+++ b/arch/mips/configs/pb1500_defconfig
@@ -27,9 +27,7 @@ CONFIG_MIPS_PB1500=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig
index 16d78d3cd2a..0778996c682 100644
--- a/arch/mips/configs/pb1550_defconfig
+++ b/arch/mips/configs/pb1550_defconfig
@@ -27,9 +27,7 @@ CONFIG_MIPS_PB1550=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig
index 780c7fc24b8..37c7b5ffd47 100644
--- a/arch/mips/configs/pnx8550-jbs_defconfig
+++ b/arch/mips/configs/pnx8550-jbs_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/pnx8550-stb810_defconfig b/arch/mips/configs/pnx8550-stb810_defconfig
index 267f21ed1d0..893e5c4ab66 100644
--- a/arch/mips/configs/pnx8550-stb810_defconfig
+++ b/arch/mips/configs/pnx8550-stb810_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/rbhma4200_defconfig b/arch/mips/configs/rbhma4200_defconfig
deleted file mode 100644
index 470f6f4d3ea..00000000000
--- a/arch/mips/configs/rbhma4200_defconfig
+++ /dev/null
@@ -1,669 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.23-rc1
-# Thu Aug  2 22:55:57 2007
-#
-CONFIG_MIPS=y
-
-#
-# Machine selection
-#
-# CONFIG_MACH_ALCHEMY is not set
-# CONFIG_BASLER_EXCITE is not set
-# CONFIG_MIPS_COBALT is not set
-# CONFIG_MACH_DECSTATION is not set
-# CONFIG_MACH_JAZZ is not set
-# CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
-# CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
-# CONFIG_MIPS_SIM is not set
-# CONFIG_MARKEINS is not set
-# CONFIG_MACH_VR41XX is not set
-# CONFIG_PNX8550_JBS is not set
-# CONFIG_PNX8550_STB810 is not set
-# CONFIG_PMC_MSP is not set
-# CONFIG_PMC_YOSEMITE is not set
-# CONFIG_SGI_IP22 is not set
-# CONFIG_SGI_IP27 is not set
-# CONFIG_SGI_IP32 is not set
-# CONFIG_SIBYTE_CRHINE is not set
-# CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_CRHONE is not set
-# CONFIG_SIBYTE_RHONE is not set
-# CONFIG_SIBYTE_SWARM is not set
-# CONFIG_SIBYTE_LITTLESUR is not set
-# CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_BIGSUR is not set
-# CONFIG_SNI_RM is not set
-# CONFIG_TOSHIBA_JMR3927 is not set
-CONFIG_TOSHIBA_RBTX4927=y
-# CONFIG_TOSHIBA_RBTX4938 is not set
-# CONFIG_WR_PPMC is not set
-# CONFIG_TOSHIBA_FPCIB0 is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_TIME=y
-CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
-CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
-CONFIG_DMA_NONCOHERENT=y
-CONFIG_DMA_NEED_PCI_MAP_STATE=y
-# CONFIG_NO_IOPORT is not set
-CONFIG_CPU_BIG_ENDIAN=y
-# CONFIG_CPU_LITTLE_ENDIAN is not set
-CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
-CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
-CONFIG_IRQ_CPU=y
-CONFIG_IRQ_TXX9=y
-CONFIG_SWAP_IO_SPACE=y
-CONFIG_MIPS_L1_CACHE_SHIFT=5
-
-#
-# CPU selection
-#
-# CONFIG_CPU_LOONGSON2 is not set
-# CONFIG_CPU_MIPS32_R1 is not set
-# CONFIG_CPU_MIPS32_R2 is not set
-# CONFIG_CPU_MIPS64_R1 is not set
-# CONFIG_CPU_MIPS64_R2 is not set
-# CONFIG_CPU_R3000 is not set
-# CONFIG_CPU_TX39XX is not set
-# CONFIG_CPU_VR41XX is not set
-# CONFIG_CPU_R4300 is not set
-# CONFIG_CPU_R4X00 is not set
-CONFIG_CPU_TX49XX=y
-# CONFIG_CPU_R5000 is not set
-# CONFIG_CPU_R5432 is not set
-# CONFIG_CPU_R6000 is not set
-# CONFIG_CPU_NEVADA is not set
-# CONFIG_CPU_R8000 is not set
-# CONFIG_CPU_R10000 is not set
-# CONFIG_CPU_RM7000 is not set
-# CONFIG_CPU_RM9000 is not set
-# CONFIG_CPU_SB1 is not set
-CONFIG_SYS_HAS_CPU_TX49XX=y
-CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
-CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y
-CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
-CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y
-
-#
-# Kernel type
-#
-CONFIG_32BIT=y
-# CONFIG_64BIT is not set
-CONFIG_PAGE_SIZE_4KB=y
-# CONFIG_PAGE_SIZE_8KB is not set
-# CONFIG_PAGE_SIZE_16KB is not set
-# CONFIG_PAGE_SIZE_64KB is not set
-CONFIG_CPU_HAS_PREFETCH=y
-CONFIG_MIPS_MT_DISABLED=y
-# CONFIG_MIPS_MT_SMP is not set
-# CONFIG_MIPS_MT_SMTC is not set
-CONFIG_CPU_HAS_LLSC=y
-CONFIG_CPU_HAS_SYNC=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_ARCH_FLATMEM_ENABLE=y
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_VIRT_TO_BUS=y
-# CONFIG_HZ_48 is not set
-# CONFIG_HZ_100 is not set
-# CONFIG_HZ_128 is not set
-CONFIG_HZ_250=y
-# CONFIG_HZ_256 is not set
-# CONFIG_HZ_1000 is not set
-# CONFIG_HZ_1024 is not set
-CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
-CONFIG_HZ=250
-CONFIG_PREEMPT_NONE=y
-# CONFIG_PREEMPT_VOLUNTARY is not set
-# CONFIG_PREEMPT is not set
-# CONFIG_SECCOMP is not set
-CONFIG_LOCKDEP_SUPPORT=y
-CONFIG_STACKTRACE_SUPPORT=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# General setup
-#
-# CONFIG_EXPERIMENTAL is not set
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-CONFIG_SYSVIPC_SYSCTL=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_AUDIT is not set
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE=""
-CONFIG_SYSCTL=y
-CONFIG_EMBEDDED=y
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-# CONFIG_HOTPLUG is not set
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-# CONFIG_FUTEX is not set
-CONFIG_ANON_INODES=y
-# CONFIG_EPOLL is not set
-CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-CONFIG_MODULES=y
-# CONFIG_MODULE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-CONFIG_DEFAULT_AS=y
-# CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="anticipatory"
-
-#
-# Bus options (PCI, PCMCIA, EISA, ISA, TC)
-#
-CONFIG_HW_HAS_PCI=y
-CONFIG_PCI=y
-# CONFIG_ARCH_SUPPORTS_MSI is not set
-CONFIG_MMU=y
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-CONFIG_TRAD_SIGNALS=y
-
-#
-# Power management options
-#
-# CONFIG_PM is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_FIB_HASH=y
-CONFIG_IP_PNP=y
-# CONFIG_IP_PNP_DHCP is not set
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_IP_MROUTE is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-
-#
-# Wireless
-#
-# CONFIG_CFG80211 is not set
-# CONFIG_WIRELESS_EXT is not set
-# CONFIG_IEEE80211 is not set
-# CONFIG_RFKILL is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_SYS_HYPERVISOR is not set
-# CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
-# CONFIG_PARPORT is not set
-CONFIG_BLK_DEV=y
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-# CONFIG_MISC_DEVICES is not set
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-# CONFIG_SCSI is not set
-# CONFIG_SCSI_DMA is not set
-# CONFIG_SCSI_NETLINK is not set
-# CONFIG_ATA is not set
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-
-#
-# An alternative FireWire stack is available with EXPERIMENTAL=y
-#
-# CONFIG_IEEE1394 is not set
-# CONFIG_I2O is not set
-CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-# CONFIG_ARCNET is not set
-# CONFIG_PHYLIB is not set
-CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
-# CONFIG_AX88796 is not set
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_CASSINI is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_DM9000 is not set
-# CONFIG_NET_TULIP is not set
-# CONFIG_HP100 is not set
-CONFIG_NE2000=y
-# CONFIG_NET_PCI is not set
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_TR is not set
-
-#
-# Wireless LAN
-#
-# CONFIG_WLAN_PRE80211 is not set
-# CONFIG_WLAN_80211 is not set
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_ISDN is not set
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-# CONFIG_INPUT is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_PCIPS2 is not set
-CONFIG_SERIO_LIBPS2=y
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_SERIAL_TXX9=y
-CONFIG_HAS_TXX9_SERIAL=y
-CONFIG_SERIAL_TXX9_NR_UARTS=6
-CONFIG_SERIAL_TXX9_CONSOLE=y
-CONFIG_SERIAL_TXX9_STDSERIAL=y
-# CONFIG_SERIAL_JSM is not set
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-# CONFIG_IPMI_HANDLER is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_RTC is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-CONFIG_DEVPORT=y
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-# CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
-# CONFIG_HWMON is not set
-CONFIG_WATCHDOG=y
-# CONFIG_WATCHDOG_NOWAYOUT is not set
-
-#
-# Watchdog Device Drivers
-#
-# CONFIG_SOFT_WATCHDOG is not set
-CONFIG_TXX9_WDT=m
-
-#
-# PCI-based Watchdog Cards
-#
-# CONFIG_PCIPCWATCHDOG is not set
-# CONFIG_WDTPCI is not set
-
-#
-# Multifunction device drivers
-#
-# CONFIG_MFD_SM501 is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-# CONFIG_DAB is not set
-
-#
-# Graphics support
-#
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Display device support
-#
-# CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_VIDEO_OUTPUT_CONTROL is not set
-# CONFIG_FB is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-# CONFIG_USB_SUPPORT is not set
-# CONFIG_MMC is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_INFINIBAND is not set
-CONFIG_RTC_LIB=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_HCTOSYS=y
-CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
-# CONFIG_RTC_DEBUG is not set
-
-#
-# RTC interfaces
-#
-CONFIG_RTC_INTF_SYSFS=y
-CONFIG_RTC_INTF_PROC=y
-CONFIG_RTC_INTF_DEV=y
-# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
-# CONFIG_RTC_DRV_TEST is not set
-
-#
-# SPI RTC drivers
-#
-
-#
-# Platform RTC drivers
-#
-# CONFIG_RTC_DRV_CMOS is not set
-# CONFIG_RTC_DRV_DS1553 is not set
-# CONFIG_RTC_DRV_STK17TA8 is not set
-CONFIG_RTC_DRV_DS1742=y
-# CONFIG_RTC_DRV_M48T86 is not set
-# CONFIG_RTC_DRV_M48T59 is not set
-# CONFIG_RTC_DRV_V3020 is not set
-
-#
-# on-CPU RTC drivers
-#
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
-# Userspace I/O
-#
-# CONFIG_UIO is not set
-
-#
-# File systems
-#
-# CONFIG_EXT2_FS is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-CONFIG_FS_POSIX_ACL=y
-# CONFIG_XFS_FS is not set
-# CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-# CONFIG_DNOTIFY is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_FUSE_FS is not set
-CONFIG_GENERIC_ACL=y
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-# CONFIG_PROC_KCORE is not set
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-CONFIG_TMPFS_POSIX_ACL=y
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_DIRECTIO is not set
-# CONFIG_NFSD is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Kernel hacking
-#
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_MUST_CHECK=y
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
-# CONFIG_HEADERS_CHECK is not set
-# CONFIG_DEBUG_KERNEL is not set
-CONFIG_CROSSCOMPILE=y
-CONFIG_CMDLINE=""
-CONFIG_SYS_SUPPORTS_KGDB=y
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-# CONFIG_CRC_CCITT is not set
-# CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
diff --git a/arch/mips/configs/rbhma4500_defconfig b/arch/mips/configs/rbtx49xx_defconfig
index 5a39f56b175..e42aed5a38b 100644
--- a/arch/mips/configs/rbhma4500_defconfig
+++ b/arch/mips/configs/rbtx49xx_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.23-rc1
-# Thu Aug  2 22:59:53 2007
+# Linux kernel version: 2.6.26-rc9
+# Fri Jul 11 23:03:21 2008
 #
 CONFIG_MIPS=y
 
@@ -10,13 +10,13 @@ CONFIG_MIPS=y
 #
 # CONFIG_MACH_ALCHEMY is not set
 # CONFIG_BASLER_EXCITE is not set
+# CONFIG_BCM47XX is not set
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
+# CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
@@ -26,6 +26,7 @@ CONFIG_MIPS=y
 # CONFIG_PMC_YOSEMITE is not set
 # CONFIG_SGI_IP22 is not set
 # CONFIG_SGI_IP27 is not set
+# CONFIG_SGI_IP28 is not set
 # CONFIG_SGI_IP32 is not set
 # CONFIG_SIBYTE_CRHINE is not set
 # CONFIG_SIBYTE_CARMEL is not set
@@ -36,10 +37,15 @@ CONFIG_MIPS=y
 # CONFIG_SIBYTE_SENTOSA is not set
 # CONFIG_SIBYTE_BIGSUR is not set
 # CONFIG_SNI_RM is not set
-# CONFIG_TOSHIBA_JMR3927 is not set
-# CONFIG_TOSHIBA_RBTX4927 is not set
-CONFIG_TOSHIBA_RBTX4938=y
+# CONFIG_MACH_TX39XX is not set
+CONFIG_MACH_TX49XX=y
 # CONFIG_WR_PPMC is not set
+CONFIG_TOSHIBA_RBTX4927=y
+CONFIG_TOSHIBA_RBTX4938=y
+CONFIG_SOC_TX4927=y
+CONFIG_SOC_TX4938=y
+# CONFIG_TOSHIBA_FPCIB0 is not set
+CONFIG_PICMG_PCI_BACKPLANE_DEFAULT=y
 
 #
 # Multiplex Pin Select
@@ -47,21 +53,30 @@ CONFIG_TOSHIBA_RBTX4938=y
 CONFIG_TOSHIBA_RBTX4938_MPLEX_PIO58_61=y
 # CONFIG_TOSHIBA_RBTX4938_MPLEX_NAND is not set
 # CONFIG_TOSHIBA_RBTX4938_MPLEX_ATA is not set
+CONFIG_PCI_TX4927=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 # CONFIG_ARCH_HAS_ILOG2_U32 is not set
 # CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_SUPPORTS_OPROFILE=y
 CONFIG_GENERIC_FIND_NEXT_BIT=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_CLOCKEVENTS=y
 CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CMOS_UPDATE=y
 CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
 CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
+CONFIG_CEVT_R4K=y
+CONFIG_CEVT_TXX9=y
+CONFIG_CSRC_R4K=y
+CONFIG_GPIO_TXX9=y
 CONFIG_DMA_NONCOHERENT=y
 CONFIG_DMA_NEED_PCI_MAP_STATE=y
+# CONFIG_HOTPLUG_CPU is not set
 # CONFIG_NO_IOPORT is not set
 CONFIG_GENERIC_GPIO=y
-# CONFIG_CPU_BIG_ENDIAN is not set
-CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_CPU_BIG_ENDIAN=y
+# CONFIG_CPU_LITTLE_ENDIAN is not set
 CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
 CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
 CONFIG_IRQ_CPU=y
@@ -94,6 +109,7 @@ CONFIG_CPU_TX49XX=y
 # CONFIG_CPU_SB1 is not set
 CONFIG_SYS_HAS_CPU_TX49XX=y
 CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y
 CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
 CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y
 
@@ -115,13 +131,20 @@ CONFIG_CPU_HAS_SYNC=y
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 # CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=0
 CONFIG_VIRT_TO_BUS=y
+CONFIG_TICK_ONESHOT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
 # CONFIG_HZ_48 is not set
 # CONFIG_HZ_100 is not set
 # CONFIG_HZ_128 is not set
@@ -156,19 +179,26 @@ CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
 CONFIG_SYSFS_DEPRECATED=y
+CONFIG_SYSFS_DEPRECATED_V2=y
 # CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
 CONFIG_EMBEDDED=y
 CONFIG_SYSCTL_SYSCALL=y
+CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
 # CONFIG_HOTPLUG is not set
 CONFIG_PRINTK=y
 CONFIG_BUG=y
 CONFIG_ELF_CORE=y
+# CONFIG_PCSPKR_PLATFORM is not set
+CONFIG_COMPAT_BRK=y
 CONFIG_BASE_FULL=y
 # CONFIG_FUTEX is not set
 CONFIG_ANON_INODES=y
@@ -181,9 +211,18 @@ CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_SLAB=y
 # CONFIG_SLUB is not set
 # CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+CONFIG_HAVE_OPROFILE=y
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_HAVE_KRETPROBES is not set
+# CONFIG_HAVE_DMA_ATTRS is not set
+CONFIG_PROC_PAGE_MONITOR=y
+CONFIG_SLABINFO=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=0
 CONFIG_MODULES=y
+# CONFIG_MODULE_FORCE_LOAD is not set
 # CONFIG_MODULE_UNLOAD is not set
 # CONFIG_MODVERSIONS is not set
 # CONFIG_MODULE_SRCVERSION_ALL is not set
@@ -205,20 +244,19 @@ CONFIG_DEFAULT_AS=y
 # CONFIG_DEFAULT_CFQ is not set
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="anticipatory"
+CONFIG_CLASSIC_RCU=y
 
 #
 # Bus options (PCI, PCMCIA, EISA, ISA, TC)
 #
 CONFIG_HW_HAS_PCI=y
 CONFIG_PCI=y
+CONFIG_PCI_DOMAINS=y
 # CONFIG_ARCH_SUPPORTS_MSI is not set
+# CONFIG_PCI_LEGACY is not set
 CONFIG_MMU=y
 
 #
-# PCCARD (PCMCIA/CardBus) support
-#
-
-#
 # Executable file formats
 #
 CONFIG_BINFMT_ELF=y
@@ -228,6 +266,7 @@ CONFIG_TRAD_SIGNALS=y
 #
 # Power management options
 #
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
 # CONFIG_PM is not set
 
 #
@@ -262,26 +301,22 @@ CONFIG_IP_PNP=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_CUBIC=y
 CONFIG_DEFAULT_TCP_CONG="cubic"
 # CONFIG_IPV6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
 # CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETFILTER is not set
+# CONFIG_ATM is not set
 # CONFIG_BRIDGE is not set
 # CONFIG_VLAN_8021Q is not set
 # CONFIG_DECNET is not set
 # CONFIG_LLC2 is not set
 # CONFIG_IPX is not set
 # CONFIG_ATALK is not set
-
-#
-# QoS and/or fair queueing
-#
 # CONFIG_NET_SCHED is not set
 
 #
@@ -289,6 +324,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 #
 # CONFIG_NET_PKTGEN is not set
 # CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
 
@@ -297,6 +333,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
 #
 # CONFIG_CFG80211 is not set
 # CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
 # CONFIG_IEEE80211 is not set
 # CONFIG_RFKILL is not set
 
@@ -325,10 +362,11 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_BLK_DEV_XIP is not set
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
 # CONFIG_MISC_DEVICES is not set
+CONFIG_HAVE_IDE=y
 # CONFIG_IDE is not set
 
 #
@@ -340,10 +378,6 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_SCSI_NETLINK is not set
 # CONFIG_ATA is not set
 # CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
 # CONFIG_FUSION is not set
 
 #
@@ -351,7 +385,7 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 #
 
 #
-# An alternative FireWire stack is available with EXPERIMENTAL=y
+# A new alternative FireWire stack is available with EXPERIMENTAL=y
 #
 # CONFIG_IEEE1394 is not set
 # CONFIG_I2O is not set
@@ -361,10 +395,27 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_VETH is not set
 # CONFIG_ARCNET is not set
-# CONFIG_PHYLIB is not set
+CONFIG_PHYLIB=y
+
+#
+# MII PHY device drivers
+#
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_LXT_PHY is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_BROADCOM_PHY is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_REALTEK_PHY is not set
+# CONFIG_FIXED_PHY is not set
+# CONFIG_MDIO_BITBANG is not set
 CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
+# CONFIG_MII is not set
 # CONFIG_AX88796 is not set
 # CONFIG_HAPPYMEAL is not set
 # CONFIG_SUNGEM is not set
@@ -374,6 +425,10 @@ CONFIG_MII=y
 # CONFIG_NET_TULIP is not set
 # CONFIG_HP100 is not set
 CONFIG_NE2000=y
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
 CONFIG_NET_PCI=y
 # CONFIG_PCNET32 is not set
 # CONFIG_AMD8111_ETH is not set
@@ -381,13 +436,13 @@ CONFIG_NET_PCI=y
 # CONFIG_B44 is not set
 # CONFIG_FORCEDETH is not set
 CONFIG_TC35815=y
-# CONFIG_DGRS is not set
 # CONFIG_EEPRO100 is not set
 # CONFIG_E100 is not set
 # CONFIG_FEALNX is not set
 # CONFIG_NATSEMI is not set
 # CONFIG_NE2K_PCI is not set
 # CONFIG_8139TOO is not set
+# CONFIG_R6040 is not set
 # CONFIG_SIS900 is not set
 # CONFIG_EPIC100 is not set
 # CONFIG_SUNDANCE is not set
@@ -402,6 +457,7 @@ CONFIG_TC35815=y
 #
 # CONFIG_WLAN_PRE80211 is not set
 # CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI_LEDS is not set
 # CONFIG_WAN is not set
 # CONFIG_FDDI is not set
 # CONFIG_PPP is not set
@@ -426,6 +482,7 @@ CONFIG_TC35815=y
 # Character devices
 #
 # CONFIG_VT is not set
+CONFIG_DEVKMEM=y
 # CONFIG_SERIAL_NONSTANDARD is not set
 
 #
@@ -449,17 +506,11 @@ CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
 # CONFIG_HW_RANDOM is not set
-# CONFIG_RTC is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
 # CONFIG_RAW_DRIVER is not set
 CONFIG_DEVPORT=y
 # CONFIG_I2C is not set
-
-#
-# SPI support
-#
 CONFIG_SPI=y
 CONFIG_SPI_MASTER=y
 
@@ -473,9 +524,25 @@ CONFIG_SPI_TXX9=y
 #
 CONFIG_SPI_AT25=y
 # CONFIG_SPI_TLE62X0 is not set
+CONFIG_HAVE_GPIO_LIB=y
+
+#
+# GPIO Support
+#
+
+#
+# I2C GPIO expanders:
+#
+
+#
+# SPI GPIO expanders:
+#
+# CONFIG_GPIO_MCP23S08 is not set
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_THERMAL_HWMON is not set
 CONFIG_WATCHDOG=y
 # CONFIG_WATCHDOG_NOWAYOUT is not set
 
@@ -492,29 +559,46 @@ CONFIG_TXX9_WDT=m
 # CONFIG_WDTPCI is not set
 
 #
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
 # Multifunction device drivers
 #
 # CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
 
 #
 # Multimedia devices
 #
+
+#
+# Multimedia core support
+#
 # CONFIG_VIDEO_DEV is not set
 # CONFIG_DVB_CORE is not set
+# CONFIG_VIDEO_MEDIA is not set
+
+#
+# Multimedia drivers
+#
 # CONFIG_DAB is not set
 
 #
 # Graphics support
 #
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
 # CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Display device support
 #
 # CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-# CONFIG_VIDEO_OUTPUT_CONTROL is not set
-# CONFIG_FB is not set
 
 #
 # Sound
@@ -522,7 +606,9 @@ CONFIG_TXX9_WDT=m
 # CONFIG_SOUND is not set
 # CONFIG_USB_SUPPORT is not set
 # CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
 # CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
 # CONFIG_INFINIBAND is not set
 CONFIG_RTC_LIB=y
 CONFIG_RTC_CLASS=y
@@ -542,16 +628,18 @@ CONFIG_RTC_INTF_DEV_UIE_EMUL=y
 #
 # SPI RTC drivers
 #
-CONFIG_RTC_DRV_RS5C348=y
 # CONFIG_RTC_DRV_MAX6902 is not set
+# CONFIG_RTC_DRV_R9701 is not set
+CONFIG_RTC_DRV_RS5C348=y
 
 #
 # Platform RTC drivers
 #
 # CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1511 is not set
 # CONFIG_RTC_DRV_DS1553 is not set
+CONFIG_RTC_DRV_DS1742=y
 # CONFIG_RTC_DRV_STK17TA8 is not set
-# CONFIG_RTC_DRV_DS1742 is not set
 # CONFIG_RTC_DRV_M48T86 is not set
 # CONFIG_RTC_DRV_M48T59 is not set
 # CONFIG_RTC_DRV_V3020 is not set
@@ -559,23 +647,6 @@ CONFIG_RTC_DRV_RS5C348=y
 #
 # on-CPU RTC drivers
 #
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
-# Userspace I/O
-#
 # CONFIG_UIO is not set
 
 #
@@ -588,12 +659,10 @@ CONFIG_RTC_DRV_RS5C348=y
 CONFIG_FS_POSIX_ACL=y
 # CONFIG_XFS_FS is not set
 # CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
+# CONFIG_DNOTIFY is not set
 CONFIG_INOTIFY=y
 CONFIG_INOTIFY_USER=y
 # CONFIG_QUOTA is not set
-# CONFIG_DNOTIFY is not set
 # CONFIG_AUTOFS_FS is not set
 # CONFIG_AUTOFS4_FS is not set
 # CONFIG_FUSE_FS is not set
@@ -622,7 +691,7 @@ CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
 # CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
+# CONFIG_CONFIGFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -630,18 +699,16 @@ CONFIG_RAMFS=y
 # CONFIG_HFSPLUS_FS is not set
 # CONFIG_CRAMFS is not set
 # CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
 # CONFIG_HPFS_FS is not set
 # CONFIG_QNX4FS_FS is not set
+# CONFIG_ROMFS_FS is not set
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
+CONFIG_NETWORK_FILESYSTEMS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 # CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_DIRECTIO is not set
 # CONFIG_NFSD is not set
 CONFIG_ROOT_NFS=y
 CONFIG_LOCKD=y
@@ -658,10 +725,6 @@ CONFIG_SUNRPC=y
 #
 # CONFIG_PARTITION_ADVANCED is not set
 CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
 # CONFIG_NLS is not set
 
 #
@@ -669,13 +732,15 @@ CONFIG_MSDOS_PARTITION=y
 #
 CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 # CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
 CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
 # CONFIG_MAGIC_SYSRQ is not set
 # CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
+CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
 # CONFIG_DEBUG_KERNEL is not set
-CONFIG_CROSSCOMPILE=y
+# CONFIG_SAMPLES is not set
 CONFIG_CMDLINE=""
 CONFIG_SYS_SUPPORTS_KGDB=y
 
@@ -690,6 +755,7 @@ CONFIG_SYS_SUPPORTS_KGDB=y
 # Library routines
 #
 CONFIG_BITREVERSE=y
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
 # CONFIG_CRC_CCITT is not set
 # CONFIG_CRC16 is not set
 # CONFIG_CRC_ITU_T is not set
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index 56371b860eb..0f4da0325ea 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/sb1250-swarm_defconfig b/arch/mips/configs/sb1250-swarm_defconfig
index 4b879980278..1ea97865f2c 100644
--- a/arch/mips/configs/sb1250-swarm_defconfig
+++ b/arch/mips/configs/sb1250-swarm_defconfig
@@ -16,9 +16,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 # CONFIG_MACH_VR41XX is not set
diff --git a/arch/mips/configs/sead_defconfig b/arch/mips/configs/sead_defconfig
deleted file mode 100644
index 3ee75b15c0b..00000000000
--- a/arch/mips/configs/sead_defconfig
+++ /dev/null
@@ -1,642 +0,0 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20
-# Sun Feb 18 21:28:10 2007
-#
-CONFIG_MIPS=y
-
-#
-# Machine selection
-#
-CONFIG_ZONE_DMA=y
-# CONFIG_MIPS_MTX1 is not set
-# CONFIG_MIPS_BOSPORUS is not set
-# CONFIG_MIPS_PB1000 is not set
-# CONFIG_MIPS_PB1100 is not set
-# CONFIG_MIPS_PB1500 is not set
-# CONFIG_MIPS_PB1550 is not set
-# CONFIG_MIPS_PB1200 is not set
-# CONFIG_MIPS_DB1000 is not set
-# CONFIG_MIPS_DB1100 is not set
-# CONFIG_MIPS_DB1500 is not set
-# CONFIG_MIPS_DB1550 is not set
-# CONFIG_MIPS_DB1200 is not set
-# CONFIG_MIPS_MIRAGE is not set
-# CONFIG_BASLER_EXCITE is not set
-# CONFIG_MIPS_COBALT is not set
-# CONFIG_MACH_DECSTATION is not set
-# CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
-# CONFIG_MIPS_MALTA is not set
-CONFIG_MIPS_SEAD=y
-# CONFIG_WR_PPMC is not set
-# CONFIG_MIPS_SIM is not set
-# CONFIG_MOMENCO_JAGUAR_ATX is not set
-# CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_JBS is not set
-# CONFIG_PNX8550_STB810 is not set
-# CONFIG_MACH_VR41XX is not set
-# CONFIG_PMC_YOSEMITE is not set
-# CONFIG_MARKEINS is not set
-# CONFIG_SGI_IP22 is not set
-# CONFIG_SGI_IP27 is not set
-# CONFIG_SGI_IP32 is not set
-# CONFIG_SIBYTE_BIGSUR is not set
-# CONFIG_SIBYTE_SWARM is not set
-# CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_RHONE is not set
-# CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_LITTLESUR is not set
-# CONFIG_SIBYTE_CRHINE is not set
-# CONFIG_SIBYTE_CRHONE is not set
-# CONFIG_SNI_RM is not set
-# CONFIG_TOSHIBA_JMR3927 is not set
-# CONFIG_TOSHIBA_RBTX4927 is not set
-# CONFIG_TOSHIBA_RBTX4938 is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_TIME=y
-CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
-# CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set
-CONFIG_DMA_NONCOHERENT=y
-CONFIG_DMA_NEED_PCI_MAP_STATE=y
-# CONFIG_CPU_BIG_ENDIAN is not set
-CONFIG_CPU_LITTLE_ENDIAN=y
-CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
-CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
-CONFIG_IRQ_CPU=y
-CONFIG_MIPS_BOARDS_GEN=y
-CONFIG_MIPS_L1_CACHE_SHIFT=5
-
-#
-# CPU selection
-#
-CONFIG_CPU_MIPS32_R1=y
-# CONFIG_CPU_MIPS32_R2 is not set
-# CONFIG_CPU_MIPS64_R1 is not set
-# CONFIG_CPU_MIPS64_R2 is not set
-# CONFIG_CPU_R3000 is not set
-# CONFIG_CPU_TX39XX is not set
-# CONFIG_CPU_VR41XX is not set
-# CONFIG_CPU_R4300 is not set
-# CONFIG_CPU_R4X00 is not set
-# CONFIG_CPU_TX49XX is not set
-# CONFIG_CPU_R5000 is not set
-# CONFIG_CPU_R5432 is not set
-# CONFIG_CPU_R6000 is not set
-# CONFIG_CPU_NEVADA is not set
-# CONFIG_CPU_R8000 is not set
-# CONFIG_CPU_R10000 is not set
-# CONFIG_CPU_RM7000 is not set
-# CONFIG_CPU_RM9000 is not set
-# CONFIG_CPU_SB1 is not set
-CONFIG_SYS_HAS_CPU_MIPS32_R1=y
-CONFIG_SYS_HAS_CPU_MIPS32_R2=y
-CONFIG_SYS_HAS_CPU_MIPS64_R1=y
-CONFIG_CPU_MIPS32=y
-CONFIG_CPU_MIPSR1=y
-CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
-CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y
-CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
-
-#
-# Kernel type
-#
-CONFIG_32BIT=y
-# CONFIG_64BIT is not set
-CONFIG_PAGE_SIZE_4KB=y
-# CONFIG_PAGE_SIZE_8KB is not set
-# CONFIG_PAGE_SIZE_16KB is not set
-# CONFIG_PAGE_SIZE_64KB is not set
-CONFIG_CPU_HAS_PREFETCH=y
-CONFIG_MIPS_MT_DISABLED=y
-# CONFIG_MIPS_MT_SMP is not set
-# CONFIG_MIPS_MT_SMTC is not set
-# CONFIG_MIPS_VPE_LOADER is not set
-# CONFIG_64BIT_PHYS_ADDR is not set
-CONFIG_CPU_HAS_LLSC=y
-# CONFIG_CPU_HAS_SMARTMIPS is not set
-CONFIG_CPU_HAS_SYNC=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_CPU_SUPPORTS_HIGHMEM=y
-CONFIG_SYS_SUPPORTS_SMARTMIPS=y
-CONFIG_ARCH_FLATMEM_ENABLE=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=1
-# CONFIG_HZ_48 is not set
-# CONFIG_HZ_100 is not set
-# CONFIG_HZ_128 is not set
-# CONFIG_HZ_250 is not set
-# CONFIG_HZ_256 is not set
-CONFIG_HZ_1000=y
-# CONFIG_HZ_1024 is not set
-CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
-CONFIG_HZ=1000
-CONFIG_PREEMPT_NONE=y
-# CONFIG_PREEMPT_VOLUNTARY is not set
-# CONFIG_PREEMPT is not set
-# CONFIG_KEXEC is not set
-CONFIG_LOCKDEP_SUPPORT=y
-CONFIG_STACKTRACE_SUPPORT=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-# CONFIG_SWAP is not set
-CONFIG_SYSVIPC=y
-# CONFIG_IPC_NS is not set
-CONFIG_SYSVIPC_SYSCTL=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_UTS_NS is not set
-# CONFIG_IKCONFIG is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_RELAY=y
-CONFIG_INITRAMFS_SOURCE=""
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-CONFIG_EMBEDDED=y
-CONFIG_SYSCTL_SYSCALL=y
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-# CONFIG_HOTPLUG is not set
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_SHMEM=y
-CONFIG_SLAB=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_SLOB is not set
-
-#
-# Loadable module support
-#
-# CONFIG_MODULES is not set
-
-#
-# Block layer
-#
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-CONFIG_DEFAULT_AS=y
-# CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="anticipatory"
-
-#
-# Bus options (PCI, PCMCIA, EISA, ISA, TC)
-#
-CONFIG_MMU=y
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-
-#
-# PCI Hotplug Support
-#
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-CONFIG_TRAD_SIGNALS=y
-
-#
-# Power management options
-#
-CONFIG_PM=y
-# CONFIG_PM_LEGACY is not set
-# CONFIG_PM_DEBUG is not set
-# CONFIG_PM_SYSFS_DEPRECATED is not set
-
-#
-# Networking
-#
-# CONFIG_NET is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_SYS_HYPERVISOR is not set
-
-#
-# Connector - unified userspace <-> kernelspace linker
-#
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=18432
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CDROM_PKTCDVD is not set
-
-#
-# Misc devices
-#
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-# CONFIG_IDE is not set
-
-#
-# SCSI device support
-#
-CONFIG_RAID_ATTRS=y
-# CONFIG_SCSI is not set
-# CONFIG_SCSI_NETLINK is not set
-
-#
-# Serial ATA (prod) and Parallel ATA (experimental) drivers
-#
-# CONFIG_ATA is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-
-#
-# I2O device support
-#
-
-#
-# ISDN subsystem
-#
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-# CONFIG_INPUT is not set
-
-#
-# Hardware I/O ports
-#
-# CONFIG_SERIO is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-# CONFIG_VT is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-
-#
-# Serial drivers
-#
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=4
-CONFIG_SERIAL_8250_RUNTIME_UARTS=4
-# CONFIG_SERIAL_8250_EXTENDED is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
-# CONFIG_TCG_TPM is not set
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-
-#
-# Dallas's 1-wire bus
-#
-# CONFIG_W1 is not set
-
-#
-# Hardware Monitoring support
-#
-# CONFIG_HWMON is not set
-# CONFIG_HWMON_VID is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-
-#
-# Graphics support
-#
-# CONFIG_FIRMWARE_EDID is not set
-# CONFIG_FB is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB_ARCH_HAS_HCD is not set
-# CONFIG_USB_ARCH_HAS_OHCI is not set
-# CONFIG_USB_ARCH_HAS_EHCI is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# MMC/SD Card support
-#
-# CONFIG_MMC is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
-
-#
-# LED drivers
-#
-
-#
-# LED Triggers
-#
-
-#
-# InfiniBand support
-#
-
-#
-# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
-#
-
-#
-# Real Time Clock
-#
-# CONFIG_RTC_CLASS is not set
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
-# Auxiliary Display support
-#
-
-#
-# Virtualization
-#
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-# CONFIG_EXT3_FS is not set
-# CONFIG_EXT4DEV_FS is not set
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-CONFIG_FUSE_FS=y
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-# CONFIG_TMPFS is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-# CONFIG_CONFIGFS_FS is not set
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Partition Types
-#
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_ACORN_PARTITION is not set
-# CONFIG_OSF_PARTITION is not set
-# CONFIG_AMIGA_PARTITION is not set
-# CONFIG_ATARI_PARTITION is not set
-# CONFIG_MAC_PARTITION is not set
-# CONFIG_MSDOS_PARTITION is not set
-# CONFIG_LDM_PARTITION is not set
-# CONFIG_SGI_PARTITION is not set
-# CONFIG_ULTRIX_PARTITION is not set
-# CONFIG_SUN_PARTITION is not set
-# CONFIG_KARMA_PARTITION is not set
-# CONFIG_EFI_PARTITION is not set
-
-#
-# Native Language Support
-#
-# CONFIG_NLS is not set
-
-#
-# Profiling support
-#
-# CONFIG_PROFILING is not set
-
-#
-# Kernel hacking
-#
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_MUST_CHECK=y
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
-# CONFIG_HEADERS_CHECK is not set
-# CONFIG_DEBUG_KERNEL is not set
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_CROSSCOMPILE=y
-CONFIG_CMDLINE=""
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-# CONFIG_CRC_CCITT is not set
-CONFIG_CRC16=y
-# CONFIG_CRC32 is not set
-# CONFIG_LIBCRC32C is not set
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
diff --git a/arch/mips/configs/tb0219_defconfig b/arch/mips/configs/tb0219_defconfig
index 8dd3ae39bca..b5059881bc7 100644
--- a/arch/mips/configs/tb0219_defconfig
+++ b/arch/mips/configs/tb0219_defconfig
@@ -16,9 +16,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 CONFIG_MACH_VR41XX=y
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig
index 2ba240e897c..b06a716bf23 100644
--- a/arch/mips/configs/tb0226_defconfig
+++ b/arch/mips/configs/tb0226_defconfig
@@ -16,9 +16,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 CONFIG_MACH_VR41XX=y
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig
index a5d0f3c55ed..46512cf7ce0 100644
--- a/arch/mips/configs/tb0287_defconfig
+++ b/arch/mips/configs/tb0287_defconfig
@@ -16,9 +16,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LASAT is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 CONFIG_MACH_VR41XX=y
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig
index edf90b321fe..b437eb7f867 100644
--- a/arch/mips/configs/workpad_defconfig
+++ b/arch/mips/configs/workpad_defconfig
@@ -14,9 +14,7 @@ CONFIG_MIPS=y
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
 # CONFIG_LEMOTE_FULONG is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MARKEINS is not set
 CONFIG_MACH_VR41XX=y
diff --git a/arch/mips/configs/wrppmc_defconfig b/arch/mips/configs/wrppmc_defconfig
index 2e3c683b205..fc2c56731b9 100644
--- a/arch/mips/configs/wrppmc_defconfig
+++ b/arch/mips/configs/wrppmc_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 CONFIG_WR_PPMC=y
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig
index b6178ffbc52..7f86c43d1bd 100644
--- a/arch/mips/configs/yosemite_defconfig
+++ b/arch/mips/configs/yosemite_defconfig
@@ -26,9 +26,7 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MIPS_COBALT is not set
 # CONFIG_MACH_DECSTATION is not set
 # CONFIG_MACH_JAZZ is not set
-# CONFIG_MIPS_ATLAS is not set
 # CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
 # CONFIG_WR_PPMC is not set
 # CONFIG_MIPS_SIM is not set
 # CONFIG_MOMENCO_JAGUAR_ATX is not set
diff --git a/arch/mips/emma2rh/common/prom.c b/arch/mips/emma2rh/common/prom.c
index 0f791eb6bb6..5e92b3a9c5b 100644
--- a/arch/mips/emma2rh/common/prom.c
+++ b/arch/mips/emma2rh/common/prom.c
@@ -34,12 +34,11 @@
 
 const char *get_system_type(void)
 {
-        switch (mips_machtype) {
-        case MACH_NEC_MARKEINS:
-                return "NEC EMMA2RH Mark-eins";
-        default:
-                return "Unknown NEC board";
-        }
+#if defined(CONFIG_MARKEINS)
+        return "NEC EMMA2RH Mark-eins";
+#else
+#error  Unknown NEC board
+#endif
 }
 
 /* [jsun@junsun.net] PMON passes arguments in C main() style */
@@ -63,10 +62,10 @@ void __init prom_init(void)
         }
 
 #if defined(CONFIG_MARKEINS)
-        mips_machtype = MACH_NEC_MARKEINS;
         add_memory_region(0, EMMA2RH_RAM_SIZE, BOOT_MEM_RAM);
+#else
+#error  Unknown NEC board
 #endif
-
 }
 
 void __init prom_free_prom_memory(void)
diff --git a/arch/mips/fw/arc/identify.c b/arch/mips/fw/arc/identify.c
index 23066985a73..0ce9acf10c3 100644
--- a/arch/mips/fw/arc/identify.c
+++ b/arch/mips/fw/arc/identify.c
@@ -22,7 +22,6 @@
 struct smatch {
         char *arcname;
         char *liname;
-        int type;
         int flags;
 };
 
@@ -30,47 +29,38 @@ static struct smatch mach_table[] = {
         {
                 .arcname        = "SGI-IP22",
                 .liname         = "SGI Indy",
-                .type           = MACH_SGI_IP22,
                 .flags          = PROM_FLAG_ARCS,
         }, {
                 .arcname        = "SGI-IP27",
                 .liname         = "SGI Origin",
-                .type           = MACH_SGI_IP27,
                 .flags          = PROM_FLAG_ARCS,
         }, {
                 .arcname        = "SGI-IP28",
                 .liname         = "SGI IP28",
-                .type           = MACH_SGI_IP28,
                 .flags          = PROM_FLAG_ARCS,
         }, {
                 .arcname        = "SGI-IP30",
                 .liname         = "SGI Octane",
-                .type           = MACH_SGI_IP30,
                 .flags          = PROM_FLAG_ARCS,
         }, {
                 .arcname        = "SGI-IP32",
                 .liname         = "SGI O2",
-                .type           = MACH_SGI_IP32,
                 .flags          = PROM_FLAG_ARCS,
         }, {
                 .arcname        = "Microsoft-Jazz",
                 .liname         = "Jazz MIPS_Magnum_4000",
-                .type           = MACH_MIPS_MAGNUM_4000,
                 .flags          = 0,
         }, {
                 .arcname        = "PICA-61",
                 .liname         = "Jazz Acer_PICA_61",
-                .type           = MACH_ACER_PICA_61,
                 .flags          = 0,
         }, {
                 .arcname        = "RM200PCI",
                 .liname         = "SNI RM200_PCI",
-                .type           = MACH_SNI_RM200_PCI,
                 .flags          = PROM_FLAG_DONT_FREE_TEMP,
         }, {
                 .arcname        = "RM200PCI-R5K",
                 .liname         = "SNI RM200_PCI-R5K",
-                .type           = MACH_SNI_RM200_PCI,
                 .flags          = PROM_FLAG_DONT_FREE_TEMP,
         }
 };
@@ -121,6 +111,5 @@ void __init prom_identify_arch(void)
         mach = string_to_mach(iname);
         system_type = mach->liname;
 
-        mips_machtype = mach->type;
         prom_flags = mach->flags;
 }
diff --git a/arch/mips/gt64120/wrppmc/reset.c b/arch/mips/gt64120/wrppmc/reset.c
index c355cff38f6..cc5474b24f0 100644
--- a/arch/mips/gt64120/wrppmc/reset.c
+++ b/arch/mips/gt64120/wrppmc/reset.c
@@ -5,10 +5,12 @@
  *
  * Copyright (C) 1997 Ralf Baechle
  */
+#include <linux/irqflags.h>
 #include <linux/kernel.h>
 
 #include <asm/cacheflush.h>
 #include <asm/mipsregs.h>
+#include <asm/processor.h>
 
 void wrppmc_machine_restart(char *command)
 {
@@ -32,15 +34,7 @@ void wrppmc_machine_halt(void)
 
         printk(KERN_NOTICE "You can safely turn off the power\n");
         while (1) {
-                __asm__(
-                        ".set\tmips3\n\t"
-                        "wait\n\t"
-                        ".set\tmips0"
-                );
+                if (cpu_wait)
+                        cpu_wait();
         }
 }
-
-void wrppmc_machine_power_off(void)
-{
-        wrppmc_machine_halt();
-}
diff --git a/arch/mips/gt64120/wrppmc/setup.c b/arch/mips/gt64120/wrppmc/setup.c
index 728ef6a80ed..ca65c84031a 100644
--- a/arch/mips/gt64120/wrppmc/setup.c
+++ b/arch/mips/gt64120/wrppmc/setup.c
@@ -98,11 +98,10 @@ void __init plat_mem_setup(void)
 {
         extern void wrppmc_machine_restart(char *command);
         extern void wrppmc_machine_halt(void);
-        extern void wrppmc_machine_power_off(void);
 
         _machine_restart = wrppmc_machine_restart;
         _machine_halt    = wrppmc_machine_halt;
-        pm_power_off     = wrppmc_machine_power_off;
+        pm_power_off     = wrppmc_machine_halt;
 
         /* This makes the operations of 'in/out[bwl]' to the
          * physical address ( < KSEG0) can work via KSEG1
diff --git a/arch/mips/jazz/setup.c b/arch/mips/jazz/setup.c
index a7947199c99..f60524e8bc4 100644
--- a/arch/mips/jazz/setup.c
+++ b/arch/mips/jazz/setup.c
@@ -76,10 +76,8 @@ void __init plat_mem_setup(void)
 
         set_io_port_base(JAZZ_PORT_BASE);
 #ifdef CONFIG_EISA
-        if (mips_machtype == MACH_MIPS_MAGNUM_4000)
-                EISA_bus = 1;
+        EISA_bus = 1;
 #endif
-        isa_slot_offset = 0xe3000000;
 
         /* request I/O space for devices used on all i[345]86 PCs */
         for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
diff --git a/arch/mips/jmr3927/common/Makefile b/arch/mips/jmr3927/common/Makefile
deleted file mode 100644
index 8fd4fcccf10..00000000000
--- a/arch/mips/jmr3927/common/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for the common code of TOSHIBA JMR-TX3927 board
-#
-
-obj-y    += prom.o puts.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/jmr3927/common/puts.c b/arch/mips/jmr3927/common/puts.c
deleted file mode 100644
index c611ab49788..00000000000
--- a/arch/mips/jmr3927/common/puts.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- *
- * BRIEF MODULE DESCRIPTION
- *      Low level uart routines to directly access a TX[34]927 SIO.
- *
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- *              ahennessy@mvista.com or source@mvista.com
- *
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * Based on arch/mips/au1000/common/puts.c
- *
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <asm/jmr3927/tx3927.h>
-
-#define TIMEOUT       0xffffff
-
-void
-prom_putchar(char c)
-{
-        int i = 0;
-
-        do {
-            i++;
-            if (i>TIMEOUT)
-                break;
-        } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
-        tx3927_sioptr(1)->tfifo = c;
-        return;
-}
-
-void
-puts(const char *cp)
-{
-    while (*cp)
-        prom_putchar(*cp++);
-    prom_putchar('\r');
-    prom_putchar('\n');
-}
diff --git a/arch/mips/jmr3927/rbhma3100/init.c b/arch/mips/jmr3927/rbhma3100/init.c
deleted file mode 100644
index 700b9cf8eb9..00000000000
--- a/arch/mips/jmr3927/rbhma3100/init.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- *              ahennessy@mvista.com
- *
- * arch/mips/jmr3927/common/init.c
- *
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/init.h>
-#include <asm/bootinfo.h>
-#include <asm/jmr3927/jmr3927.h>
-
-extern void  __init prom_init_cmdline(void);
-
-const char *get_system_type(void)
-{
-        return "Toshiba"
-#ifdef CONFIG_TOSHIBA_JMR3927
-               " JMR_TX3927"
-#endif
-        ;
-}
-
-extern void puts(const char *cp);
-
-void __init prom_init(void)
-{
-#ifdef CONFIG_TOSHIBA_JMR3927
-        /* CCFG */
-        if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
-                puts("Warning: TX3927 TLB off\n");
-#endif
-
-        prom_init_cmdline();
-        add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
-}
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 65e46a6d417..0fd31974ba2 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -20,9 +20,6 @@ obj-$(CONFIG_CSRC_R4K)		+= csrc-r4k.o
 obj-$(CONFIG_CSRC_SB1250)       += csrc-sb1250.o
 obj-$(CONFIG_SYNC_R4K)          += sync-r4k.o
 
-binfmt_irix-objs        := irixelf.o irixinv.o irixioctl.o irixsig.o    \
-                           irix5sys.o sysirix.o
-
 obj-$(CONFIG_STACKTRACE)        += stacktrace.o
 obj-$(CONFIG_MODULES)           += mips_ksyms.o module.o
 
@@ -63,14 +60,13 @@ obj-$(CONFIG_I8259)		+= i8259.o
 obj-$(CONFIG_IRQ_CPU)           += irq_cpu.o
 obj-$(CONFIG_IRQ_CPU_RM7K)      += irq-rm7000.o
 obj-$(CONFIG_IRQ_CPU_RM9K)      += irq-rm9000.o
-obj-$(CONFIG_MIPS_BOARDS_GEN)   += irq-msc01.o
+obj-$(CONFIG_MIPS_MSC)          += irq-msc01.o
 obj-$(CONFIG_IRQ_TXX9)          += irq_txx9.o
 obj-$(CONFIG_IRQ_GT641XX)       += irq-gt641xx.o
 obj-$(CONFIG_IRQ_GIC)           += irq-gic.o
 
 obj-$(CONFIG_32BIT)             += scall32-o32.o
 obj-$(CONFIG_64BIT)             += scall64-64.o
-obj-$(CONFIG_BINFMT_IRIX)       += binfmt_irix.o
 obj-$(CONFIG_MIPS32_COMPAT)     += linux32.o ptrace32.o signal32.o
 obj-$(CONFIG_MIPS32_N32)        += binfmt_elfn32.o scall64-n32.o signal_n32.o
 obj-$(CONFIG_MIPS32_O32)        += binfmt_elfo32.o scall64-o32.o
diff --git a/arch/mips/kernel/early_printk.c b/arch/mips/kernel/early_printk.c
index 9dccfa4752b..9ae813eb782 100644
--- a/arch/mips/kernel/early_printk.c
+++ b/arch/mips/kernel/early_printk.c
@@ -10,6 +10,8 @@
 #include <linux/console.h>
 #include <linux/init.h>
 
+#include <asm/setup.h>
+
 extern void prom_putchar(char);
 
 static void __init
diff --git a/arch/mips/kernel/gpio_txx9.c b/arch/mips/kernel/gpio_txx9.c
index b1436a85799..c6854d9df92 100644
--- a/arch/mips/kernel/gpio_txx9.c
+++ b/arch/mips/kernel/gpio_txx9.c
@@ -47,23 +47,25 @@ static void txx9_gpio_set(struct gpio_chip *chip, unsigned int offset,
 
 static int txx9_gpio_dir_in(struct gpio_chip *chip, unsigned int offset)
 {
-        spin_lock_irq(&txx9_gpio_lock);
+        unsigned long flags;
+        spin_lock_irqsave(&txx9_gpio_lock, flags);
         __raw_writel(__raw_readl(&txx9_pioptr->dir) & ~(1 << offset),
                      &txx9_pioptr->dir);
         mmiowb();
-        spin_unlock_irq(&txx9_gpio_lock);
+        spin_unlock_irqrestore(&txx9_gpio_lock, flags);
         return 0;
 }
 
 static int txx9_gpio_dir_out(struct gpio_chip *chip, unsigned int offset,
                              int value)
 {
-        spin_lock_irq(&txx9_gpio_lock);
+        unsigned long flags;
+        spin_lock_irqsave(&txx9_gpio_lock, flags);
         txx9_gpio_set_raw(offset, value);
         __raw_writel(__raw_readl(&txx9_pioptr->dir) | (1 << offset),
                      &txx9_pioptr->dir);
         mmiowb();
-        spin_unlock_irq(&txx9_gpio_lock);
+        spin_unlock_irqrestore(&txx9_gpio_lock, flags);
         return 0;
 }
 
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index 38fa1a194bf..b6ac55162b9 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -80,7 +80,7 @@ static int pit_next_event(unsigned long delta, struct clock_event_device *evt)
  * registered. This mechanism replaces the previous #ifdef LOCAL_APIC -
  * !using_apic_timer decisions in do_timer_interrupt_hook()
  */
-struct clock_event_device pit_clockevent = {
+static struct clock_event_device pit_clockevent = {
         .name           = "pit",
         .features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
         .set_mode       = init_pit_timer,
diff --git a/arch/mips/kernel/irix5sys.S b/arch/mips/kernel/irix5sys.S
deleted file mode 100644
index eeef891093e..00000000000
--- a/arch/mips/kernel/irix5sys.S
+++ /dev/null
@@ -1,1041 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * 32-bit IRIX5 ABI system call table derived from original file 'irix5sys.h'
- * created by David S. Miller.
- *
- * Copyright (C) 1996 - 2004 David S. Miller <dm@engr.sgi.com>
- * Copyright (C) 2004 Steven J. Hill <sjhill@realitydiluted.com>
- */
-#include <asm/asm.h>
-
-        /*
-         * Key:
-         *         V == Valid and should work as expected for most cases.
-         *        HV == Half Valid, some things will work, some likely will not
-         *        IV == InValid, certainly will not work at all yet
-         *        ?V == ?'ably Valid, I have not done enough looking into it
-         *        DC == Don't Care, a rats ass we couldn't give
-         */
-
-        .macro  irix5syscalltable
-
-        sys     sys_syscall     0       /* 1000  sysindir()            V*/
-        sys     sys_exit        1       /* 1001  exit()                V*/
-        sys     sys_fork        0       /* 1002  fork()                V*/
-        sys     sys_read        3       /* 1003  read()                V*/
-        sys     sys_write       3       /* 1004  write()               V*/
-        sys     sys_open        3       /* 1005  open()                V*/
-        sys     sys_close       1       /* 1006  close()               V*/
-        sys     irix_unimp      0       /* 1007  (XXX IRIX 4 wait)     V*/
-        sys     sys_creat       2       /* 1008  creat()               V*/
-        sys     sys_link        2       /* 1009  link()                V*/
-        sys     sys_unlink      1       /* 1010  unlink()              V*/
-        sys     irix_exec       0       /* 1011  exec()                V*/
-        sys     sys_chdir       1       /* 1012  chdir()               V*/
-        sys     irix_gtime      0       /* 1013  time()                V*/
-        sys     irix_unimp      0       /* 1014  (XXX IRIX 4 mknod)    V*/
-        sys     sys_chmod       2       /* 1015  chmod()               V*/
-        sys     sys_chown       3       /* 1016  chown()               V*/
-        sys     irix_brk        1       /* 1017  break()               V*/
-        sys     irix_unimp      0       /* 1018  (XXX IRIX 4 stat)     V*/
-        sys     sys_lseek       3       /* 1019  lseek()     XXX64bit HV*/
-        sys     irix_getpid     0       /* 1020  getpid()              V*/
-        sys     irix_mount      6       /* 1021  mount()              IV*/
-        sys     sys_umount      1       /* 1022  umount()              V*/
-        sys     sys_setuid      1       /* 1023  setuid()              V*/
-        sys     irix_getuid     0       /* 1024  getuid()              V*/
-        sys     irix_stime      1       /* 1025  stime()               V*/
-        sys     irix_unimp      4       /* 1026  XXX ptrace()         IV*/
-        sys     irix_alarm      1       /* 1027  alarm()               V*/
-        sys     irix_unimp      0       /* 1028  (XXX IRIX 4 fstat)    V*/
-        sys     irix_pause      0       /* 1029  pause()               V*/
-        sys     sys_utime       2       /* 1030  utime()               V*/
-        sys     irix_unimp      0       /* 1031  nuthin'               V*/
-        sys     irix_unimp      0       /* 1032  nobody home man...    V*/
-        sys     sys_access      2       /* 1033  access()              V*/
-        sys     sys_nice        1       /* 1034  nice()                V*/
-        sys     irix_statfs     2       /* 1035  statfs()              V*/
-        sys     sys_sync        0       /* 1036  sync()                V*/
-        sys     sys_kill        2       /* 1037  kill()                V*/
-        sys     irix_fstatfs    2       /* 1038  fstatfs()             V*/
-        sys     irix_setpgrp    1       /* 1039  setpgrp()             V*/
-        sys     irix_syssgi     0       /* 1040  syssgi()             HV*/
-        sys     sys_dup         1       /* 1041  dup()                 V*/
-        sys     sys_pipe        0       /* 1042  pipe()                V*/
-        sys     irix_times      1       /* 1043  times()               V*/
-        sys     irix_unimp      0       /* 1044  XXX profil()         IV*/
-        sys     irix_unimp      0       /* 1045  XXX lock()           IV*/
-        sys     sys_setgid      1       /* 1046  setgid()              V*/
-        sys     irix_getgid     0       /* 1047  getgid()              V*/
-        sys     irix_unimp      0       /* 1048  (XXX IRIX 4 ssig)     V*/
-        sys     irix_msgsys     6       /* 1049  sys_msgsys            V*/
-        sys     sys_sysmips     4       /* 1050  sysmips()            HV*/
-        sys     irix_unimp      0       /* 1051  XXX sysacct()        IV*/
-        sys     irix_shmsys     5       /* 1052  sys_shmsys            V*/
-        sys     irix_semsys     0       /* 1053  sys_semsys            V*/
-        sys     irix_ioctl      3       /* 1054  ioctl()              HV*/
-        sys     irix_uadmin     0       /* 1055  XXX sys_uadmin()     HC*/
-        sys     irix_sysmp      0       /* 1056  sysmp()              HV*/
-        sys     irix_utssys     4       /* 1057  sys_utssys()         HV*/
-        sys     irix_unimp      0       /* 1058  nada enchilada        V*/
-        sys     irix_exece      0       /* 1059  exece()               V*/
-        sys     sys_umask       1       /* 1060  umask()               V*/
-        sys     sys_chroot      1       /* 1061  chroot()              V*/
-        sys     irix_fcntl      3       /* 1062  fcntl()              ?V*/
-        sys     irix_ulimit     2       /* 1063  ulimit()             HV*/
-        sys     irix_unimp      0       /* 1064  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1065  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1066  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1067  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1068  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1069  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1070  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1071  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1072  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1073  XXX AFS shit         DC*/
-        sys     irix_unimp      0       /* 1074  nuttin'               V*/
-        sys     irix_unimp      0       /* 1075  XXX sys_getrlimit64()IV*/
-        sys     irix_unimp      0       /* 1076  XXX sys_setrlimit64()IV*/
-        sys     sys_nanosleep   2       /* 1077  nanosleep()           V*/
-        sys     irix_lseek64    5       /* 1078  lseek64()            ?V*/
-        sys     sys_rmdir       1       /* 1079  rmdir()               V*/
-        sys     sys_mkdir       2       /* 1080  mkdir()               V*/
-        sys     sys_getdents    3       /* 1081  getdents()            V*/
-        sys     irix_sginap     1       /* 1082  sys_sginap()          V*/
-        sys     irix_sgikopt    3       /* 1083  sys_sgikopt()        DC*/
-        sys     sys_sysfs       3       /* 1084  sysfs()              ?V*/
-        sys     irix_unimp      0       /* 1085  XXX sys_getmsg()     DC*/
-        sys     irix_unimp      0       /* 1086  XXX sys_putmsg()     DC*/
-        sys     sys_poll        3       /* 1087  poll()                V*/
-        sys     irix_sigreturn  0       /* 1088  sigreturn()          ?V*/
-        sys     sys_accept      3       /* 1089  accept()              V*/
-        sys     sys_bind        3       /* 1090  bind()                V*/
-        sys     sys_connect     3       /* 1091  connect()             V*/
-        sys     irix_gethostid  0       /* 1092  sys_gethostid()      ?V*/
-        sys     sys_getpeername 3       /* 1093  getpeername()         V*/
-        sys     sys_getsockname 3       /* 1094  getsockname()         V*/
-        sys     sys_getsockopt  5       /* 1095  getsockopt()          V*/
-        sys     sys_listen      2       /* 1096  listen()              V*/
-        sys     sys_recv        4       /* 1097  recv()                V*/
-        sys     sys_recvfrom    6       /* 1098  recvfrom()            V*/
-        sys     sys_recvmsg     3       /* 1099  recvmsg()             V*/
-        sys     sys_select      5       /* 1100  select()              V*/
-        sys     sys_send        4       /* 1101  send()                V*/
-        sys     sys_sendmsg     3       /* 1102  sendmsg()             V*/
-        sys     sys_sendto      6       /* 1103  sendto()              V*/
-        sys     irix_sethostid  1       /* 1104  sys_sethostid()      ?V*/
-        sys     sys_setsockopt  5       /* 1105  setsockopt()          V*/
-        sys     sys_shutdown    2       /* 1106  shutdown()           ?V*/
-        sys     irix_socket     3       /* 1107  socket()              V*/
-        sys     sys_gethostname 2       /* 1108  sys_gethostname()    ?V*/
-        sys     sys_sethostname 2       /* 1109  sethostname()        ?V*/
-        sys     irix_getdomainname 2    /* 1110  sys_getdomainname()  ?V*/
-        sys     sys_setdomainname 2     /* 1111  setdomainname()      ?V*/
-        sys     sys_truncate    2       /* 1112  truncate()            V*/
-        sys     sys_ftruncate   2       /* 1113  ftruncate()           V*/
-        sys     sys_rename      2       /* 1114  rename()              V*/
-        sys     sys_symlink     2       /* 1115  symlink()             V*/
-        sys     sys_readlink    3       /* 1116  readlink()            V*/
-        sys     irix_unimp      0       /* 1117  XXX IRIX 4 lstat()   DC*/
-        sys     irix_unimp      0       /* 1118  nothin'               V*/
-        sys     irix_unimp      0       /* 1119  XXX nfs_svc()        DC*/
-        sys     irix_unimp      0       /* 1120  XXX nfs_getfh()      DC*/
-        sys     irix_unimp      0       /* 1121  XXX async_daemon()   DC*/
-        sys     irix_unimp      0       /* 1122  XXX exportfs()       DC*/
-        sys     sys_setregid    2       /* 1123  setregid()            V*/
-        sys     sys_setreuid    2       /* 1124  setreuid()            V*/
-        sys     sys_getitimer   2       /* 1125  getitimer()           V*/
-        sys     sys_setitimer   3       /* 1126  setitimer()           V*/
-        sys     irix_unimp      1       /* 1127  XXX adjtime()        IV*/
-        sys     irix_gettimeofday 1     /* 1128  gettimeofday()        V*/
-        sys     irix_unimp      0       /* 1129  XXX sproc()          IV*/
-        sys     irix_prctl      0       /* 1130  prctl()              HV*/
-        sys     irix_unimp      0       /* 1131  XXX procblk()        IV*/
-        sys     irix_unimp      0       /* 1132  XXX sprocsp()        IV*/
-        sys     irix_unimp      0       /* 1133  XXX sgigsc()         IV*/
-        sys     irix_mmap32     6       /* 1134  mmap()    XXXflags?  ?V*/
-        sys     sys_munmap      2       /* 1135  munmap()              V*/
-        sys     sys_mprotect    3       /* 1136  mprotect()            V*/
-        sys     sys_msync       4       /* 1137  msync()               V*/
-        sys     irix_madvise    3       /* 1138  madvise()            DC*/
-        sys     irix_pagelock   3       /* 1139  pagelock()           IV*/
-        sys     irix_getpagesize 0      /* 1140  getpagesize()         V*/
-        sys     irix_quotactl   0       /* 1141  quotactl()            V*/
-        sys     irix_unimp      0       /* 1142  nobody home man       V*/
-        sys     sys_getpgid     1       /* 1143  BSD getpgrp()         V*/
-        sys     irix_BSDsetpgrp 2       /* 1143  BSD setpgrp()         V*/
-        sys     sys_vhangup     0       /* 1144  vhangup()             V*/
-        sys     sys_fsync       1       /* 1145  fsync()               V*/
-        sys     sys_fchdir      1       /* 1146  fchdir()              V*/
-        sys     sys_getrlimit   2       /* 1147  getrlimit()          ?V*/
-        sys     sys_setrlimit   2       /* 1148  setrlimit()          ?V*/
-        sys     sys_cacheflush  3       /* 1150  cacheflush()         HV*/
-        sys     sys_cachectl    3       /* 1151  cachectl()           HV*/
-        sys     sys_fchown      3       /* 1152  fchown()             ?V*/
-        sys     sys_fchmod      2       /* 1153  fchmod()             ?V*/
-        sys     irix_unimp      0       /* 1154  XXX IRIX 4 wait3()    V*/
-        sys     sys_socketpair  4       /* 1155  socketpair()          V*/
-        sys     irix_systeminfo 3       /* 1156  systeminfo()         IV*/
-        sys     irix_uname      1       /* 1157  uname()              IV*/
-        sys     irix_xstat      3       /* 1158  xstat()               V*/
-        sys     irix_lxstat     3       /* 1159  lxstat()              V*/
-        sys     irix_fxstat     3       /* 1160  fxstat()              V*/
-        sys     irix_xmknod     0       /* 1161  xmknod()             ?V*/
-        sys     irix_sigaction  4       /* 1162  sigaction()          ?V*/
-        sys     irix_sigpending 1       /* 1163  sigpending()         ?V*/
-        sys     irix_sigprocmask 3      /* 1164  sigprocmask()        ?V*/
-        sys     irix_sigsuspend 0       /* 1165  sigsuspend()         ?V*/
-        sys     irix_sigpoll_sys 3      /* 1166  sigpoll_sys()        IV*/
-        sys     irix_swapctl    2       /* 1167  swapctl()            IV*/
-        sys     irix_getcontext 0       /* 1168  getcontext()         HV*/
-        sys     irix_setcontext 0       /* 1169  setcontext()         HV*/
-        sys     irix_waitsys    5       /* 1170  waitsys()            IV*/
-        sys     irix_sigstack   2       /* 1171  sigstack()           HV*/
-        sys     irix_sigaltstack 2      /* 1172  sigaltstack()        HV*/
-        sys     irix_sigsendset 2       /* 1173  sigsendset()         IV*/
-        sys     irix_statvfs    2       /* 1174  statvfs()             V*/
-        sys     irix_fstatvfs   2       /* 1175  fstatvfs()            V*/
-        sys     irix_unimp      0       /* 1176  XXX getpmsg()        DC*/
-        sys     irix_unimp      0       /* 1177  XXX putpmsg()        DC*/
-        sys     sys_lchown      3       /* 1178  lchown()              V*/
-        sys     irix_priocntl   0       /* 1179  priocntl()           DC*/
-        sys     irix_sigqueue   4       /* 1180  sigqueue()           IV*/
-        sys     sys_readv       3       /* 1181  readv()               V*/
-        sys     sys_writev      3       /* 1182  writev()              V*/
-        sys     irix_truncate64 4       /* 1183  truncate64() XX32bit HV*/
-        sys     irix_ftruncate64 4      /* 1184  ftruncate64()XX32bit HV*/
-        sys     irix_mmap64     0       /* 1185  mmap64()     XX32bit HV*/
-        sys     irix_dmi        0       /* 1186  dmi()                DC*/
-        sys     irix_pread      6       /* 1187  pread()              IV*/
-        sys     irix_pwrite     6       /* 1188  pwrite()             IV*/
-        sys     sys_fsync       1       /* 1189  fdatasync()  XXPOSIX HV*/
-        sys     irix_sgifastpath 7      /* 1190  sgifastpath() WHEEE  IV*/
-        sys     irix_unimp      0       /* 1191  XXX attr_get()       DC*/
-        sys     irix_unimp      0       /* 1192  XXX attr_getf()      DC*/
-        sys     irix_unimp      0       /* 1193  XXX attr_set()       DC*/
-        sys     irix_unimp      0       /* 1194  XXX attr_setf()      DC*/
-        sys     irix_unimp      0       /* 1195  XXX attr_remove()    DC*/
-        sys     irix_unimp      0       /* 1196  XXX attr_removef()   DC*/
-        sys     irix_unimp      0       /* 1197  XXX attr_list()      DC*/
-        sys     irix_unimp      0       /* 1198  XXX attr_listf()     DC*/
-        sys     irix_unimp      0       /* 1199  XXX attr_multi()     DC*/
-        sys     irix_unimp      0       /* 1200  XXX attr_multif()    DC*/
-        sys     irix_statvfs64  2       /* 1201  statvfs64()           V*/
-        sys     irix_fstatvfs64 2       /* 1202  fstatvfs64()          V*/
-        sys     irix_getmountid 2       /* 1203  getmountid()XXXfsids HV*/
-        sys     irix_nsproc     5       /* 1204  nsproc()             IV*/
-        sys     irix_getdents64 3       /* 1205  getdents64()         HV*/
-        sys     irix_unimp      0       /* 1206  XXX DFS garbage      DC*/
-        sys     irix_ngetdents  4       /* 1207  ngetdents() XXXeop   HV*/
-        sys     irix_ngetdents64 4      /* 1208  ngetdents64() XXXeop HV*/
-        sys     irix_unimp      0       /* 1209  nothin'               V*/
-        sys     irix_unimp      0       /* 1210  XXX pidsprocsp()       */
-        sys     irix_unimp      0       /* 1211  XXX rexec()            */
-        sys     irix_unimp      0       /* 1212  XXX timer_create()     */
-        sys     irix_unimp      0       /* 1213  XXX timer_delete()     */
-        sys     irix_unimp      0       /* 1214  XXX timer_settime()    */
-        sys     irix_unimp      0       /* 1215  XXX timer_gettime()    */
-        sys     irix_unimp      0       /* 1216  XXX timer_setoverrun() */
-        sys     sys_sched_rr_get_interval 2             /* 1217  sched_rr_get_interval()V*/
-        sys     sys_sched_yield 0       /* 1218  sched_yield()         V*/
-        sys     sys_sched_getscheduler 1 /* 1219  sched_getscheduler()  V*/
-        sys     sys_sched_setscheduler 3 /* 1220  sched_setscheduler()  V*/
-        sys     sys_sched_getparam 2    /* 1221  sched_getparam()      V*/
-        sys     sys_sched_setparam 2    /* 1222  sched_setparam()      V*/
-        sys     irix_unimp      0       /* 1223  XXX usync_cntl()       */
-        sys     irix_unimp      0       /* 1224  XXX psema_cntl()       */
-        sys     irix_unimp      0       /* 1225  XXX restartreturn()    */
-
-        /* Just to pad things out nicely. */
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-        sys     irix_unimp      0
-
-        .endm
-
-        /*
-         * Pre-compute the number of _instruction_ bytes needed to load
-         * or store the arguments 6-8. Negative values are ignored.
-         */
-        .macro  sys function, nargs
-        PTR     \function
-        LONG    (\nargs << 2) - (5 << 2)
-        .endm
-
-        .align  4
-EXPORT(sys_call_table_irix5)
-        irix5syscalltable
diff --git a/arch/mips/kernel/irixelf.c b/arch/mips/kernel/irixelf.c
deleted file mode 100644
index 469c7237e5b..00000000000
--- a/arch/mips/kernel/irixelf.c
+++ /dev/null
@@ -1,1361 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * irixelf.c: Code to load IRIX ELF executables conforming to the MIPS ABI.
- *            Based off of work by Eric Youngdale.
- *
- * Copyright (C) 1993 - 1994 Eric Youngdale <ericy@cais.com>
- * Copyright (C) 1996 - 2004 David S. Miller <dm@engr.sgi.com>
- * Copyright (C) 2004 - 2005 Steven J. Hill <sjhill@realitydiluted.com>
- */
-#undef DEBUG
-
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/a.out.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/signal.h>
-#include <linux/binfmts.h>
-#include <linux/string.h>
-#include <linux/file.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/shm.h>
-#include <linux/personality.h>
-#include <linux/elfcore.h>
-
-#include <asm/mipsregs.h>
-#include <asm/namei.h>
-#include <asm/prctl.h>
-#include <asm/uaccess.h>
-
-#define DLINFO_ITEMS 12
-
-#include <linux/elf.h>
-
-static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs);
-static int load_irix_library(struct file *);
-static int irix_core_dump(long signr, struct pt_regs * regs,
-                          struct file *file, unsigned long limit);
-
-static struct linux_binfmt irix_format = {
-        .module         = THIS_MODULE,
-        .load_binary    = load_irix_binary,
-        .load_shlib     = load_irix_library,
-        .core_dump      = irix_core_dump,
-        .min_coredump   = PAGE_SIZE,
-};
-
-/* Debugging routines. */
-static char *get_elf_p_type(Elf32_Word p_type)
-{
-#ifdef DEBUG
-        switch (p_type) {
-        case PT_NULL:
-                return "PT_NULL";
-                break;
-
-        case PT_LOAD:
-                return "PT_LOAD";
-                break;
-
-        case PT_DYNAMIC:
-                return "PT_DYNAMIC";
-                break;
-
-        case PT_INTERP:
-                return "PT_INTERP";
-                break;
-
-        case PT_NOTE:
-                return "PT_NOTE";
-                break;
-
-        case PT_SHLIB:
-                return "PT_SHLIB";
-                break;
-
-        case PT_PHDR:
-                return "PT_PHDR";
-                break;
-
-        case PT_LOPROC:
-                return "PT_LOPROC/REGINFO";
-                break;
-
-        case PT_HIPROC:
-                return "PT_HIPROC";
-                break;
-
-        default:
-                return "PT_BOGUS";
-                break;
-        }
-#endif
-}
-
-static void print_elfhdr(struct elfhdr *ehp)
-{
-        int i;
-
-        pr_debug("ELFHDR: e_ident<");
-        for (i = 0; i < (EI_NIDENT - 1); i++)
-                pr_debug("%x ", ehp->e_ident[i]);
-        pr_debug("%x>\n", ehp->e_ident[i]);
-        pr_debug("        e_type[%04x] e_machine[%04x] e_version[%08lx]\n",
-                 (unsigned short) ehp->e_type, (unsigned short) ehp->e_machine,
-                 (unsigned long) ehp->e_version);
-        pr_debug("        e_entry[%08lx] e_phoff[%08lx] e_shoff[%08lx] "
-                 "e_flags[%08lx]\n",
-                 (unsigned long) ehp->e_entry, (unsigned long) ehp->e_phoff,
-                 (unsigned long) ehp->e_shoff, (unsigned long) ehp->e_flags);
-        pr_debug("        e_ehsize[%04x] e_phentsize[%04x] e_phnum[%04x]\n",
-                 (unsigned short) ehp->e_ehsize,
-                 (unsigned short) ehp->e_phentsize,
-                 (unsigned short) ehp->e_phnum);
-        pr_debug("        e_shentsize[%04x] e_shnum[%04x] e_shstrndx[%04x]\n",
-                 (unsigned short) ehp->e_shentsize,
-                 (unsigned short) ehp->e_shnum,
-                 (unsigned short) ehp->e_shstrndx);
-}
-
-static void print_phdr(int i, struct elf_phdr *ep)
-{
-        pr_debug("PHDR[%d]: p_type[%s] p_offset[%08lx] p_vaddr[%08lx] "
-                 "p_paddr[%08lx]\n", i, get_elf_p_type(ep->p_type),
-                 (unsigned long) ep->p_offset, (unsigned long) ep->p_vaddr,
-                 (unsigned long) ep->p_paddr);
-        pr_debug("         p_filesz[%08lx] p_memsz[%08lx] p_flags[%08lx] "
-                 "p_align[%08lx]\n", (unsigned long) ep->p_filesz,
-                 (unsigned long) ep->p_memsz, (unsigned long) ep->p_flags,
-                 (unsigned long) ep->p_align);
-}
-
-static void dump_phdrs(struct elf_phdr *ep, int pnum)
-{
-        int i;
-
-        for (i = 0; i < pnum; i++, ep++) {
-                if ((ep->p_type == PT_LOAD) ||
-                    (ep->p_type == PT_INTERP) ||
-                    (ep->p_type == PT_PHDR))
-                        print_phdr(i, ep);
-        }
-}
-
-static void set_brk(unsigned long start, unsigned long end)
-{
-        start = PAGE_ALIGN(start);
-        end = PAGE_ALIGN(end);
-        if (end <= start)
-                return;
-        down_write(&current->mm->mmap_sem);
-        do_brk(start, end - start);
-        up_write(&current->mm->mmap_sem);
-}
-
-
-/* We need to explicitly zero any fractional pages
- * after the data section (i.e. bss).  This would
- * contain the junk from the file that should not
- * be in memory.
- */
-static void padzero(unsigned long elf_bss)
-{
-        unsigned long nbyte;
-
-        nbyte = elf_bss & (PAGE_SIZE-1);
-        if (nbyte) {
-                nbyte = PAGE_SIZE - nbyte;
-                clear_user((void __user *) elf_bss, nbyte);
-        }
-}
-
-static unsigned long * create_irix_tables(char * p, int argc, int envc,
-        struct elfhdr * exec, unsigned int load_addr,
-        unsigned int interp_load_addr, struct pt_regs *regs,
-        struct elf_phdr *ephdr)
-{
-        elf_addr_t *argv;
-        elf_addr_t *envp;
-        elf_addr_t *sp, *csp;
-
-        pr_debug("create_irix_tables: p[%p] argc[%d] envc[%d] "
-                 "load_addr[%08x] interp_load_addr[%08x]\n",
-                 p, argc, envc, load_addr, interp_load_addr);
-
-        sp = (elf_addr_t *) (~15UL & (unsigned long) p);
-        csp = sp;
-        csp -= exec ? DLINFO_ITEMS*2 : 2;
-        csp -= envc+1;
-        csp -= argc+1;
-        csp -= 1;               /* argc itself */
-        if ((unsigned long)csp & 15UL) {
-                sp -= (16UL - ((unsigned long)csp & 15UL)) / sizeof(*sp);
-        }
-
-        /*
-         * Put the ELF interpreter info on the stack
-         */
-#define NEW_AUX_ENT(nr, id, val) \
-          __put_user((id), sp+(nr*2)); \
-          __put_user((val), sp+(nr*2+1)); \
-
-        sp -= 2;
-        NEW_AUX_ENT(0, AT_NULL, 0);
-
-        if (exec) {
-                sp -= 11*2;
-
-                NEW_AUX_ENT(0, AT_PHDR, load_addr + exec->e_phoff);
-                NEW_AUX_ENT(1, AT_PHENT, sizeof(struct elf_phdr));
-                NEW_AUX_ENT(2, AT_PHNUM, exec->e_phnum);
-                NEW_AUX_ENT(3, AT_PAGESZ, ELF_EXEC_PAGESIZE);
-                NEW_AUX_ENT(4, AT_BASE, interp_load_addr);
-                NEW_AUX_ENT(5, AT_FLAGS, 0);
-                NEW_AUX_ENT(6, AT_ENTRY, (elf_addr_t) exec->e_entry);
-                NEW_AUX_ENT(7, AT_UID, (elf_addr_t) current->uid);
-                NEW_AUX_ENT(8, AT_EUID, (elf_addr_t) current->euid);
-                NEW_AUX_ENT(9, AT_GID, (elf_addr_t) current->gid);
-                NEW_AUX_ENT(10, AT_EGID, (elf_addr_t) current->egid);
-        }
-#undef NEW_AUX_ENT
-
-        sp -= envc+1;
-        envp = sp;
-        sp -= argc+1;
-        argv = sp;
-
-        __put_user((elf_addr_t)argc, --sp);
-        current->mm->arg_start = (unsigned long) p;
-        while (argc-->0) {
-                __put_user((unsigned long)p, argv++);
-                p += strlen_user(p);
-        }
-        __put_user((unsigned long) NULL, argv);
-        current->mm->arg_end = current->mm->env_start = (unsigned long) p;
-        while (envc-->0) {
-                __put_user((unsigned long)p, envp++);
-                p += strlen_user(p);
-        }
-        __put_user((unsigned long) NULL, envp);
-        current->mm->env_end = (unsigned long) p;
-        return sp;
-}
-
-
-/* This is much more generalized than the library routine read function,
- * so we keep this separate.  Technically the library read function
- * is only provided so that we can read a.out libraries that have
- * an ELF header.
- */
-static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
-                                     struct file * interpreter,
-                                     unsigned int *interp_load_addr)
-{
-        struct elf_phdr *elf_phdata  =  NULL;
-        struct elf_phdr *eppnt;
-        unsigned int len;
-        unsigned int load_addr;
-        int elf_bss;
-        int retval;
-        unsigned int last_bss;
-        int error;
-        int i;
-        unsigned int k;
-
-        elf_bss = 0;
-        last_bss = 0;
-        error = load_addr = 0;
-
-        print_elfhdr(interp_elf_ex);
-
-        /* First of all, some simple consistency checks */
-        if ((interp_elf_ex->e_type != ET_EXEC &&
-             interp_elf_ex->e_type != ET_DYN) ||
-             !interpreter->f_op->mmap) {
-                printk("IRIX interp has bad e_type %d\n", interp_elf_ex->e_type);
-                return 0xffffffff;
-        }
-
-        /* Now read in all of the header information */
-        if (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > PAGE_SIZE) {
-            printk("IRIX interp header bigger than a page (%d)\n",
-                   (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum));
-            return 0xffffffff;
-        }
-
-        elf_phdata = kmalloc(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum,
-                             GFP_KERNEL);
-
-        if (!elf_phdata) {
-                printk("Cannot kmalloc phdata for IRIX interp.\n");
-                return 0xffffffff;
-        }
-
-        /* If the size of this structure has changed, then punt, since
-         * we will be doing the wrong thing.
-         */
-        if (interp_elf_ex->e_phentsize != 32) {
-                printk("IRIX interp e_phentsize == %d != 32 ",
-                       interp_elf_ex->e_phentsize);
-                kfree(elf_phdata);
-                return 0xffffffff;
-        }
-
-        retval = kernel_read(interpreter, interp_elf_ex->e_phoff,
-                           (char *) elf_phdata,
-                           sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
-
-        dump_phdrs(elf_phdata, interp_elf_ex->e_phnum);
-
-        eppnt = elf_phdata;
-        for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
-                if (eppnt->p_type == PT_LOAD) {
-                        int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
-                        int elf_prot = 0;
-                        unsigned long vaddr = 0;
-                        if (eppnt->p_flags & PF_R)
-                                elf_prot =  PROT_READ;
-                        if (eppnt->p_flags & PF_W)
-                                elf_prot |= PROT_WRITE;
-                        if (eppnt->p_flags & PF_X)
-                                elf_prot |= PROT_EXEC;
-                        elf_type |= MAP_FIXED;
-                        vaddr = eppnt->p_vaddr;
-
-                        pr_debug("INTERP do_mmap"
-                                 "(%p, %08lx, %08lx, %08lx, %08lx, %08lx) ",
-                                 interpreter, vaddr,
-                                 (unsigned long)
-                                 (eppnt->p_filesz + (eppnt->p_vaddr & 0xfff)),
-                                 (unsigned long)
-                                 elf_prot, (unsigned long) elf_type,
-                                 (unsigned long)
-                                 (eppnt->p_offset & 0xfffff000));
-
-                        down_write(&current->mm->mmap_sem);
-                        error = do_mmap(interpreter, vaddr,
-                        eppnt->p_filesz + (eppnt->p_vaddr & 0xfff),
-                        elf_prot, elf_type,
-                        eppnt->p_offset & 0xfffff000);
-                        up_write(&current->mm->mmap_sem);
-
-                        if (error < 0 && error > -1024) {
-                                printk("Aieee IRIX interp mmap error=%d\n",
-                                       error);
-                                break;  /* Real error */
-                        }
-                        pr_debug("error=%08lx ", (unsigned long) error);
-                        if (!load_addr && interp_elf_ex->e_type == ET_DYN) {
-                                load_addr = error;
-                                pr_debug("load_addr = error ");
-                        }
-
-                        /*
-                         * Find the end of the file  mapping for this phdr, and
-                         * keep track of the largest address we see for this.
-                         */
-                        k = eppnt->p_vaddr + eppnt->p_filesz;
-                        if (k > elf_bss)
-                                elf_bss = k;
-
-                        /* Do the same thing for the memory mapping - between
-                         * elf_bss and last_bss is the bss section.
-                         */
-                        k = eppnt->p_memsz + eppnt->p_vaddr;
-                        if (k > last_bss)
-                                last_bss = k;
-                        pr_debug("\n");
-                }
-        }
-
-        /* Now use mmap to map the library into memory. */
-        if (error < 0 && error > -1024) {
-                pr_debug("got error %d\n", error);
-                kfree(elf_phdata);
-                return 0xffffffff;
-        }
-
-        /* Now fill out the bss section.  First pad the last page up
-         * to the page boundary, and then perform a mmap to make sure
-         * that there are zero-mapped pages up to and including the
-         * last bss page.
-         */
-        pr_debug("padzero(%08lx) ", (unsigned long) (elf_bss));
-        padzero(elf_bss);
-        len = (elf_bss + 0xfff) & 0xfffff000; /* What we have mapped so far */
-
-        pr_debug("last_bss[%08lx] len[%08lx]\n", (unsigned long) last_bss,
-                 (unsigned long) len);
-
-        /* Map the last of the bss segment */
-        if (last_bss > len) {
-                down_write(&current->mm->mmap_sem);
-                do_brk(len, (last_bss - len));
-                up_write(&current->mm->mmap_sem);
-        }
-        kfree(elf_phdata);
-
-        *interp_load_addr = load_addr;
-        return ((unsigned int) interp_elf_ex->e_entry);
-}
-
-/* Check sanity of IRIX elf executable header. */
-static int verify_binary(struct elfhdr *ehp, struct linux_binprm *bprm)
-{
-        if (memcmp(ehp->e_ident, ELFMAG, SELFMAG) != 0)
-                return -ENOEXEC;
-
-        /* First of all, some simple consistency checks */
-        if ((ehp->e_type != ET_EXEC && ehp->e_type != ET_DYN) ||
-            !bprm->file->f_op->mmap) {
-                return -ENOEXEC;
-        }
-
-        /* XXX Don't support N32 or 64bit binaries yet because they can
-         * XXX and do execute 64 bit instructions and expect all registers
-         * XXX to be 64 bit as well.  We need to make the kernel save
-         * XXX all registers as 64bits on cpu's capable of this at
-         * XXX exception time plus frob the XTLB exception vector.
-         */
-        if ((ehp->e_flags & EF_MIPS_ABI2))
-                return -ENOEXEC;
-
-        return 0;
-}
-
-/*
- * This is where the detailed check is performed. Irix binaries
- * use interpreters with 'libc.so' in the name, so this function
- * can differentiate between Linux and Irix binaries.
- */
-static inline int look_for_irix_interpreter(char **name,
-                                            struct file **interpreter,
-                                            struct elfhdr *interp_elf_ex,
-                                            struct elf_phdr *epp,
-                                            struct linux_binprm *bprm, int pnum)
-{
-        int i;
-        int retval = -EINVAL;
-        struct file *file = NULL;
-
-        *name = NULL;
-        for (i = 0; i < pnum; i++, epp++) {
-                if (epp->p_type != PT_INTERP)
-                        continue;
-
-                /* It is illegal to have two interpreters for one executable. */
-                if (*name != NULL)
-                        goto out;
-
-                *name = kmalloc(epp->p_filesz + strlen(IRIX_EMUL), GFP_KERNEL);
-                if (!*name)
-                        return -ENOMEM;
-
-                strcpy(*name, IRIX_EMUL);
-                retval = kernel_read(bprm->file, epp->p_offset, (*name + 16),
-                                     epp->p_filesz);
-                if (retval < 0)
-                        goto out;
-
-                file = open_exec(*name);
-                if (IS_ERR(file)) {
-                        retval = PTR_ERR(file);
-                        goto out;
-                }
-                retval = kernel_read(file, 0, bprm->buf, 128);
-                if (retval < 0)
-                        goto dput_and_out;
-
-                *interp_elf_ex = *(struct elfhdr *) bprm->buf;
-        }
-        *interpreter = file;
-        return 0;
-
-dput_and_out:
-        fput(file);
-out:
-        kfree(*name);
-        return retval;
-}
-
-static inline int verify_irix_interpreter(struct elfhdr *ihp)
-{
-        if (memcmp(ihp->e_ident, ELFMAG, SELFMAG) != 0)
-                return -ELIBBAD;
-        return 0;
-}
-
-#define EXEC_MAP_FLAGS (MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE)
-
-static inline void map_executable(struct file *fp, struct elf_phdr *epp, int pnum,
-                                  unsigned int *estack, unsigned int *laddr,
-                                  unsigned int *scode, unsigned int *ebss,
-                                  unsigned int *ecode, unsigned int *edata,
-                                  unsigned int *ebrk)
-{
-        unsigned int tmp;
-        int i, prot;
-
-        for (i = 0; i < pnum; i++, epp++) {
-                if (epp->p_type != PT_LOAD)
-                        continue;
-
-                /* Map it. */
-                prot  = (epp->p_flags & PF_R) ? PROT_READ : 0;
-                prot |= (epp->p_flags & PF_W) ? PROT_WRITE : 0;
-                prot |= (epp->p_flags & PF_X) ? PROT_EXEC : 0;
-                down_write(&current->mm->mmap_sem);
-                (void) do_mmap(fp, (epp->p_vaddr & 0xfffff000),
-                               (epp->p_filesz + (epp->p_vaddr & 0xfff)),
-                               prot, EXEC_MAP_FLAGS,
-                               (epp->p_offset & 0xfffff000));
-                up_write(&current->mm->mmap_sem);
-
-                /* Fixup location tracking vars. */
-                if ((epp->p_vaddr & 0xfffff000) < *estack)
-                        *estack = (epp->p_vaddr & 0xfffff000);
-                if (!*laddr)
-                        *laddr = epp->p_vaddr - epp->p_offset;
-                if (epp->p_vaddr < *scode)
-                        *scode = epp->p_vaddr;
-
-                tmp = epp->p_vaddr + epp->p_filesz;
-                if (tmp > *ebss)
-                        *ebss = tmp;
-                if ((epp->p_flags & PF_X) && *ecode < tmp)
-                        *ecode = tmp;
-                if (*edata < tmp)
-                        *edata = tmp;
-
-                tmp = epp->p_vaddr + epp->p_memsz;
-                if (tmp > *ebrk)
-                        *ebrk = tmp;
-        }
-
-}
-
-static inline int map_interpreter(struct elf_phdr *epp, struct elfhdr *ihp,
-                                  struct file *interp, unsigned int *iladdr,
-                                  int pnum, mm_segment_t old_fs,
-                                  unsigned int *eentry)
-{
-        int i;
-
-        *eentry = 0xffffffff;
-        for (i = 0; i < pnum; i++, epp++) {
-                if (epp->p_type != PT_INTERP)
-                        continue;
-
-                /* We should have fielded this error elsewhere... */
-                if (*eentry != 0xffffffff)
-                        return -1;
-
-                set_fs(old_fs);
-                *eentry = load_irix_interp(ihp, interp, iladdr);
-                old_fs = get_fs();
-                set_fs(get_ds());
-
-                fput(interp);
-
-                if (*eentry == 0xffffffff)
-                        return -1;
-        }
-        return 0;
-}
-
-/*
- * IRIX maps a page at 0x200000 that holds information about the
- * process and the system, here we map the page and fill the
- * structure
- */
-static int irix_map_prda_page(void)
-{
-        unsigned long v;
-        struct prda *pp;
-
-        down_write(&current->mm->mmap_sem);
-        v =  do_brk(PRDA_ADDRESS, PAGE_SIZE);
-        up_write(&current->mm->mmap_sem);
-
-        if (v != PRDA_ADDRESS)
-                return v;               /* v must be an error code */
-
-        pp = (struct prda *) v;
-        pp->prda_sys.t_pid  = task_pid_vnr(current);
-        pp->prda_sys.t_prid = read_c0_prid();
-        pp->prda_sys.t_rpid = task_pid_vnr(current);
-
-        /* We leave the rest set to zero */
-
-        return 0;
-}
-
-
-
-/* These are the functions used to load ELF style executables and shared
- * libraries.  There is no binary dependent code anywhere else.
- */
-static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
-{
-        struct elfhdr elf_ex, interp_elf_ex;
-        struct file *interpreter;
-        struct elf_phdr *elf_phdata, *elf_ihdr, *elf_ephdr;
-        unsigned int load_addr, elf_bss, elf_brk;
-        unsigned int elf_entry, interp_load_addr = 0;
-        unsigned int start_code, end_code, end_data, elf_stack;
-        int retval, has_interp, has_ephdr, size, i;
-        char *elf_interpreter;
-        mm_segment_t old_fs;
-
-        load_addr = 0;
-        has_interp = has_ephdr = 0;
-        elf_ihdr = elf_ephdr = NULL;
-        elf_ex = *((struct elfhdr *) bprm->buf);
-        retval = -ENOEXEC;
-
-        if (verify_binary(&elf_ex, bprm))
-                goto out;
-
-        /*
-         * Telling -o32 static binaries from Linux and Irix apart from each
-         * other is difficult. There are 2 differences to be noted for static
-         * binaries from the 2 operating systems:
-         *
-         *    1) Irix binaries have their .text section before their .init
-         *       section. Linux binaries are just the opposite.
-         *
-         *    2) Irix binaries usually have <= 12 sections and Linux
-         *       binaries have > 20.
-         *
-         * We will use Method #2 since Method #1 would require us to read in
-         * the section headers which is way too much overhead. This appears
-         * to work for everything we have ran into so far. If anyone has a
-         * better method to tell the binaries apart, I'm listening.
-         */
-        if (elf_ex.e_shnum > 20)
-                goto out;
-
-        print_elfhdr(&elf_ex);
-
-        /* Now read in all of the header information */
-        size = elf_ex.e_phentsize * elf_ex.e_phnum;
-        if (size > 65536)
-                goto out;
-        elf_phdata = kmalloc(size, GFP_KERNEL);
-        if (elf_phdata == NULL) {
-                retval = -ENOMEM;
-                goto out;
-        }
-
-        retval = kernel_read(bprm->file, elf_ex.e_phoff, (char *)elf_phdata, size);
-        if (retval < 0)
-                goto out_free_ph;
-
-        dump_phdrs(elf_phdata, elf_ex.e_phnum);
-
-        /* Set some things for later. */
-        for (i = 0; i < elf_ex.e_phnum; i++) {
-                switch (elf_phdata[i].p_type) {
-                case PT_INTERP:
-                        has_interp = 1;
-                        elf_ihdr = &elf_phdata[i];
-                        break;
-                case PT_PHDR:
-                        has_ephdr = 1;
-                        elf_ephdr = &elf_phdata[i];
-                        break;
-                };
-        }
-
-        pr_debug("\n");
-
-        elf_bss = 0;
-        elf_brk = 0;
-
-        elf_stack = 0xffffffff;
-        elf_interpreter = NULL;
-        start_code = 0xffffffff;
-        end_code = 0;
-        end_data = 0;
-
-        /*
-         * If we get a return value, we change the value to be ENOEXEC
-         * so that we can exit gracefully and the main binary format
-         * search loop in 'fs/exec.c' will move onto the next handler
-         * which should be the normal ELF binary handler.
-         */
-        retval = look_for_irix_interpreter(&elf_interpreter, &interpreter,
-                                           &interp_elf_ex, elf_phdata, bprm,
-                                           elf_ex.e_phnum);
-        if (retval) {
-                retval = -ENOEXEC;
-                goto out_free_file;
-        }
-
-        if (elf_interpreter) {
-                retval = verify_irix_interpreter(&interp_elf_ex);
-                if (retval)
-                        goto out_free_interp;
-        }
-
-        /* OK, we are done with that, now set up the arg stuff,
-         * and then start this sucker up.
-         */
-        retval = -E2BIG;
-        if (!bprm->sh_bang && !bprm->p)
-                goto out_free_interp;
-
-        /* Flush all traces of the currently running executable */
-        retval = flush_old_exec(bprm);
-        if (retval)
-                goto out_free_dentry;
-
-        /* OK, This is the point of no return */
-        current->mm->end_data = 0;
-        current->mm->end_code = 0;
-        current->mm->mmap = NULL;
-        current->flags &= ~PF_FORKNOEXEC;
-        elf_entry = (unsigned int) elf_ex.e_entry;
-
-        /* Do this so that we can load the interpreter, if need be.  We will
-         * change some of these later.
-         */
-        setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT);
-        current->mm->start_stack = bprm->p;
-
-        /* At this point, we assume that the image should be loaded at
-         * fixed address, not at a variable address.
-         */
-        old_fs = get_fs();
-        set_fs(get_ds());
-
-        map_executable(bprm->file, elf_phdata, elf_ex.e_phnum, &elf_stack,
-                       &load_addr, &start_code, &elf_bss, &end_code,
-                       &end_data, &elf_brk);
-
-        if (elf_interpreter) {
-                retval = map_interpreter(elf_phdata, &interp_elf_ex,
-                                         interpreter, &interp_load_addr,
-                                         elf_ex.e_phnum, old_fs, &elf_entry);
-                kfree(elf_interpreter);
-                if (retval) {
-                        set_fs(old_fs);
-                        printk("Unable to load IRIX ELF interpreter\n");
-                        send_sig(SIGSEGV, current, 0);
-                        retval = 0;
-                        goto out_free_file;
-                }
-        }
-
-        set_fs(old_fs);
-
-        kfree(elf_phdata);
-        set_personality(PER_IRIX32);
-        set_binfmt(&irix_format);
-        compute_creds(bprm);
-        current->flags &= ~PF_FORKNOEXEC;
-        bprm->p = (unsigned long)
-          create_irix_tables((char *)bprm->p, bprm->argc, bprm->envc,
-                        (elf_interpreter ? &elf_ex : NULL),
-                        load_addr, interp_load_addr, regs, elf_ephdr);
-        current->mm->start_brk = current->mm->brk = elf_brk;
-        current->mm->end_code = end_code;
-        current->mm->start_code = start_code;
-        current->mm->end_data = end_data;
-        current->mm->start_stack = bprm->p;
-
-        /* Calling set_brk effectively mmaps the pages that we need for the
-         * bss and break sections.
-         */
-        set_brk(elf_bss, elf_brk);
-
-        /*
-         * IRIX maps a page at 0x200000 which holds some system
-         * information.  Programs depend on this.
-         */
-        if (irix_map_prda_page())
-                goto out_free_dentry;
-
-        padzero(elf_bss);
-
-        pr_debug("(start_brk) %lx\n" , (long) current->mm->start_brk);
-        pr_debug("(end_code) %lx\n" , (long) current->mm->end_code);
-        pr_debug("(start_code) %lx\n" , (long) current->mm->start_code);
-        pr_debug("(end_data) %lx\n" , (long) current->mm->end_data);
-        pr_debug("(start_stack) %lx\n" , (long) current->mm->start_stack);
-        pr_debug("(brk) %lx\n" , (long) current->mm->brk);
-
-#if 0 /* XXX No fucking way dude... */
-        /* Why this, you ask???  Well SVr4 maps page 0 as read-only,
-         * and some applications "depend" upon this behavior.
-         * Since we do not have the power to recompile these, we
-         * emulate the SVr4 behavior.  Sigh.
-         */
-        down_write(&current->mm->mmap_sem);
-        (void) do_mmap(NULL, 0, 4096, PROT_READ | PROT_EXEC,
-                       MAP_FIXED | MAP_PRIVATE, 0);
-        up_write(&current->mm->mmap_sem);
-#endif
-
-        start_thread(regs, elf_entry, bprm->p);
-        if (current->ptrace & PT_PTRACED)
-                send_sig(SIGTRAP, current, 0);
-        return 0;
-out:
-        return retval;
-
-out_free_dentry:
-        allow_write_access(interpreter);
-        fput(interpreter);
-out_free_interp:
-        kfree(elf_interpreter);
-out_free_file:
-out_free_ph:
-        kfree(elf_phdata);
-        goto out;
-}
-
-/* This is really simpleminded and specialized - we are loading an
- * a.out library that is given an ELF header.
- */
-static int load_irix_library(struct file *file)
-{
-        struct elfhdr elf_ex;
-        struct elf_phdr *elf_phdata  =  NULL;
-        unsigned int len = 0;
-        int elf_bss = 0;
-        int retval;
-        unsigned int bss;
-        int error;
-        int i, j, k;
-
-        error = kernel_read(file, 0, (char *) &elf_ex, sizeof(elf_ex));
-        if (error != sizeof(elf_ex))
-                return -ENOEXEC;
-
-        if (memcmp(elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
-                return -ENOEXEC;
-
-        /* First of all, some simple consistency checks. */
-        if (elf_ex.e_type != ET_EXEC || elf_ex.e_phnum > 2 ||
-           !file->f_op->mmap)
-                return -ENOEXEC;
-
-        /* Now read in all of the header information. */
-        if (sizeof(struct elf_phdr) * elf_ex.e_phnum > PAGE_SIZE)
-                return -ENOEXEC;
-
-        elf_phdata = kmalloc(sizeof(struct elf_phdr) * elf_ex.e_phnum, GFP_KERNEL);
-        if (elf_phdata == NULL)
-                return -ENOMEM;
-
-        retval = kernel_read(file, elf_ex.e_phoff, (char *) elf_phdata,
-                           sizeof(struct elf_phdr) * elf_ex.e_phnum);
-
-        j = 0;
-        for (i=0; i<elf_ex.e_phnum; i++)
-                if ((elf_phdata + i)->p_type == PT_LOAD) j++;
-
-        if (j != 1)  {
-                kfree(elf_phdata);
-                return -ENOEXEC;
-        }
-
-        while (elf_phdata->p_type != PT_LOAD) elf_phdata++;
-
-        /* Now use mmap to map the library into memory. */
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap(file,
-                        elf_phdata->p_vaddr & 0xfffff000,
-                        elf_phdata->p_filesz + (elf_phdata->p_vaddr & 0xfff),
-                        PROT_READ | PROT_WRITE | PROT_EXEC,
-                        MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE,
-                        elf_phdata->p_offset & 0xfffff000);
-        up_write(&current->mm->mmap_sem);
-
-        k = elf_phdata->p_vaddr + elf_phdata->p_filesz;
-        if (k > elf_bss) elf_bss = k;
-
-        if (error != (elf_phdata->p_vaddr & 0xfffff000)) {
-                kfree(elf_phdata);
-                return error;
-        }
-
-        padzero(elf_bss);
-
-        len = (elf_phdata->p_filesz + elf_phdata->p_vaddr+ 0xfff) & 0xfffff000;
-        bss = elf_phdata->p_memsz + elf_phdata->p_vaddr;
-        if (bss > len) {
-          down_write(&current->mm->mmap_sem);
-          do_brk(len, bss-len);
-          up_write(&current->mm->mmap_sem);
-        }
-        kfree(elf_phdata);
-        return 0;
-}
-
-/* Called through irix_syssgi() to map an elf image given an FD,
- * a phdr ptr USER_PHDRP in userspace, and a count CNT telling how many
- * phdrs there are in the USER_PHDRP array.  We return the vaddr the
- * first phdr was successfully mapped to.
- */
-unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt)
-{
-        unsigned long type, vaddr, filesz, offset, flags;
-        struct elf_phdr __user *hp;
-        struct file *filp;
-        int i, retval;
-
-        pr_debug("irix_mapelf: fd[%d] user_phdrp[%p] cnt[%d]\n",
-                 fd, user_phdrp, cnt);
-
-        /* First get the verification out of the way. */
-        hp = user_phdrp;
-        if (!access_ok(VERIFY_READ, hp, (sizeof(struct elf_phdr) * cnt))) {
-                pr_debug("irix_mapelf: bad pointer to ELF PHDR!\n");
-
-                return -EFAULT;
-        }
-
-        dump_phdrs(user_phdrp, cnt);
-
-        for (i = 0; i < cnt; i++, hp++) {
-                if (__get_user(type, &hp->p_type))
-                        return -EFAULT;
-                if (type != PT_LOAD) {
-                        printk("irix_mapelf: One section is not PT_LOAD!\n");
-                        return -ENOEXEC;
-                }
-        }
-
-        filp = fget(fd);
-        if (!filp)
-                return -EACCES;
-        if (!filp->f_op) {
-                printk("irix_mapelf: Bogon filp!\n");
-                fput(filp);
-                return -EACCES;
-        }
-
-        hp = user_phdrp;
-        for (i = 0; i < cnt; i++, hp++) {
-                int prot;
-
-                retval = __get_user(vaddr, &hp->p_vaddr);
-                retval |= __get_user(filesz, &hp->p_filesz);
-                retval |= __get_user(offset, &hp->p_offset);
-                retval |= __get_user(flags, &hp->p_flags);
-                if (retval)
-                        return retval;
-
-                prot  = (flags & PF_R) ? PROT_READ : 0;
-                prot |= (flags & PF_W) ? PROT_WRITE : 0;
-                prot |= (flags & PF_X) ? PROT_EXEC : 0;
-
-                down_write(&current->mm->mmap_sem);
-                retval = do_mmap(filp, (vaddr & 0xfffff000),
-                                 (filesz + (vaddr & 0xfff)),
-                                 prot, (MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE),
-                                 (offset & 0xfffff000));
-                up_write(&current->mm->mmap_sem);
-
-                if (retval != (vaddr & 0xfffff000)) {
-                        printk("irix_mapelf: do_mmap fails with %d!\n", retval);
-                        fput(filp);
-                        return retval;
-                }
-        }
-
-        pr_debug("irix_mapelf: Success, returning %08lx\n",
-                 (unsigned long) user_phdrp->p_vaddr);
-
-        fput(filp);
-
-        if (__get_user(vaddr, &user_phdrp->p_vaddr))
-                return -EFAULT;
-
-        return vaddr;
-}
-
-/*
- * ELF core dumper
- *
- * Modelled on fs/exec.c:aout_core_dump()
- * Jeremy Fitzhardinge <jeremy@sw.oz.au>
- */
-
-/* These are the only things you should do on a core-file: use only these
- * functions to write out all the necessary info.
- */
-static int dump_write(struct file *file, const void __user *addr, int nr)
-{
-        return file->f_op->write(file, (const char __user *) addr, nr, &file->f_pos) == nr;
-}
-
-static int dump_seek(struct file *file, off_t off)
-{
-        if (file->f_op->llseek) {
-                if (file->f_op->llseek(file, off, 0) != off)
-                        return 0;
-        } else
-                file->f_pos = off;
-        return 1;
-}
-
-/* Decide whether a segment is worth dumping; default is yes to be
- * sure (missing info is worse than too much; etc).
- * Personally I'd include everything, and use the coredump limit...
- *
- * I think we should skip something. But I am not sure how. H.J.
- */
-static inline int maydump(struct vm_area_struct *vma)
-{
-        if (!(vma->vm_flags & (VM_READ|VM_WRITE|VM_EXEC)))
-                return 0;
-#if 1
-        if (vma->vm_flags & (VM_WRITE|VM_GROWSUP|VM_GROWSDOWN))
-                return 1;
-        if (vma->vm_flags & (VM_READ|VM_EXEC|VM_EXECUTABLE|VM_SHARED))
-                return 0;
-#endif
-        return 1;
-}
-
-/* An ELF note in memory. */
-struct memelfnote
-{
-        const char *name;
-        int type;
-        unsigned int datasz;
-        void *data;
-};
-
-static int notesize(struct memelfnote *en)
-{
-        int sz;
-
-        sz = sizeof(struct elf_note);
-        sz += roundup(strlen(en->name) + 1, 4);
-        sz += roundup(en->datasz, 4);
-
-        return sz;
-}
-
-#define DUMP_WRITE(addr, nr)    \
-        if (!dump_write(file, (addr), (nr))) \
-                goto end_coredump;
-#define DUMP_SEEK(off)  \
-        if (!dump_seek(file, (off))) \
-                goto end_coredump;
-
-static int writenote(struct memelfnote *men, struct file *file)
-{
-        struct elf_note en;
-
-        en.n_namesz = strlen(men->name) + 1;
-        en.n_descsz = men->datasz;
-        en.n_type = men->type;
-
-        DUMP_WRITE(&en, sizeof(en));
-        DUMP_WRITE(men->name, en.n_namesz);
-        /* XXX - cast from long long to long to avoid need for libgcc.a */
-        DUMP_SEEK(roundup((unsigned long)file->f_pos, 4));      /* XXX */
-        DUMP_WRITE(men->data, men->datasz);
-        DUMP_SEEK(roundup((unsigned long)file->f_pos, 4));      /* XXX */
-
-        return 1;
-
-end_coredump:
-        return 0;
-}
-#undef DUMP_WRITE
-#undef DUMP_SEEK
-
-#define DUMP_WRITE(addr, nr)    \
-        if (!dump_write(file, (addr), (nr))) \
-                goto end_coredump;
-#define DUMP_SEEK(off)  \
-        if (!dump_seek(file, (off))) \
-                goto end_coredump;
-
-/* Actual dumper.
- *
- * This is a two-pass process; first we find the offsets of the bits,
- * and then they are actually written out.  If we run out of core limit
- * we just truncate.
- */
-static int irix_core_dump(long signr, struct pt_regs *regs, struct file *file, unsigned long limit)
-{
-        int has_dumped = 0;
-        mm_segment_t fs;
-        int segs;
-        int i;
-        size_t size;
-        struct vm_area_struct *vma;
-        struct elfhdr elf;
-        off_t offset = 0, dataoff;
-        int numnote = 3;
-        struct memelfnote notes[3];
-        struct elf_prstatus prstatus;   /* NT_PRSTATUS */
-        elf_fpregset_t fpu;             /* NT_PRFPREG */
-        struct elf_prpsinfo psinfo;     /* NT_PRPSINFO */
-
-        /* Count what's needed to dump, up to the limit of coredump size. */
-        segs = 0;
-        size = 0;
-        for (vma = current->mm->mmap; vma != NULL; vma = vma->vm_next) {
-                if (maydump(vma))
-                {
-                        int sz = vma->vm_end-vma->vm_start;
-
-                        if (size+sz >= limit)
-                                break;
-                        else
-                                size += sz;
-                }
-
-                segs++;
-        }
-        pr_debug("irix_core_dump: %d segs taking %d bytes\n", segs, size);
-
-        /* Set up header. */
-        memcpy(elf.e_ident, ELFMAG, SELFMAG);
-        elf.e_ident[EI_CLASS] = ELFCLASS32;
-        elf.e_ident[EI_DATA] = ELFDATA2LSB;
-        elf.e_ident[EI_VERSION] = EV_CURRENT;
-        elf.e_ident[EI_OSABI] = ELF_OSABI;
-        memset(elf.e_ident+EI_PAD, 0, EI_NIDENT-EI_PAD);
-
-        elf.e_type = ET_CORE;
-        elf.e_machine = ELF_ARCH;
-        elf.e_version = EV_CURRENT;
-        elf.e_entry = 0;
-        elf.e_phoff = sizeof(elf);
-        elf.e_shoff = 0;
-        elf.e_flags = 0;
-        elf.e_ehsize = sizeof(elf);
-        elf.e_phentsize = sizeof(struct elf_phdr);
-        elf.e_phnum = segs+1;           /* Include notes. */
-        elf.e_shentsize = 0;
-        elf.e_shnum = 0;
-        elf.e_shstrndx = 0;
-
-        fs = get_fs();
-        set_fs(KERNEL_DS);
-
-        has_dumped = 1;
-        current->flags |= PF_DUMPCORE;
-
-        DUMP_WRITE(&elf, sizeof(elf));
-        offset += sizeof(elf);                          /* Elf header. */
-        offset += (segs+1) * sizeof(struct elf_phdr);   /* Program headers. */
-
-        /* Set up the notes in similar form to SVR4 core dumps made
-         * with info from their /proc.
-         */
-        memset(&psinfo, 0, sizeof(psinfo));
-        memset(&prstatus, 0, sizeof(prstatus));
-
-        notes[0].name = "CORE";
-        notes[0].type = NT_PRSTATUS;
-        notes[0].datasz = sizeof(prstatus);
-        notes[0].data = &prstatus;
-        prstatus.pr_info.si_signo = prstatus.pr_cursig = signr;
-        prstatus.pr_sigpend = current->pending.signal.sig[0];
-        prstatus.pr_sighold = current->blocked.sig[0];
-        psinfo.pr_pid = prstatus.pr_pid = task_pid_vnr(current);
-        psinfo.pr_ppid = prstatus.pr_ppid = task_pid_vnr(current->parent);
-        psinfo.pr_pgrp = prstatus.pr_pgrp = task_pgrp_vnr(current);
-        psinfo.pr_sid = prstatus.pr_sid = task_session_vnr(current);
-        if (thread_group_leader(current)) {
-                /*
-                 * This is the record for the group leader.  Add in the
-                 * cumulative times of previous dead threads.  This total
-                 * won't include the time of each live thread whose state
-                 * is included in the core dump.  The final total reported
-                 * to our parent process when it calls wait4 will include
-                 * those sums as well as the little bit more time it takes
-                 * this and each other thread to finish dying after the
-                 * core dump synchronization phase.
-                 */
-                jiffies_to_timeval(current->utime + current->signal->utime,
-                                   &prstatus.pr_utime);
-                jiffies_to_timeval(current->stime + current->signal->stime,
-                                   &prstatus.pr_stime);
-        } else {
-                jiffies_to_timeval(current->utime, &prstatus.pr_utime);
-                jiffies_to_timeval(current->stime, &prstatus.pr_stime);
-        }
-        jiffies_to_timeval(current->signal->cutime, &prstatus.pr_cutime);
-        jiffies_to_timeval(current->signal->cstime, &prstatus.pr_cstime);
-
-        if (sizeof(elf_gregset_t) != sizeof(struct pt_regs)) {
-                printk("sizeof(elf_gregset_t) (%d) != sizeof(struct pt_regs) "
-                       "(%d)\n", sizeof(elf_gregset_t), sizeof(struct pt_regs));
-        } else {
-                *(struct pt_regs *)&prstatus.pr_reg = *regs;
-        }
-
-        notes[1].name = "CORE";
-        notes[1].type = NT_PRPSINFO;
-        notes[1].datasz = sizeof(psinfo);
-        notes[1].data = &psinfo;
-        i = current->state ? ffz(~current->state) + 1 : 0;
-        psinfo.pr_state = i;
-        psinfo.pr_sname = (i < 0 || i > 5) ? '.' : "RSDZTD"[i];
-        psinfo.pr_zomb = psinfo.pr_sname == 'Z';
-        psinfo.pr_nice = task_nice(current);
-        psinfo.pr_flag = current->flags;
-        psinfo.pr_uid = current->uid;
-        psinfo.pr_gid = current->gid;
-        {
-                int i, len;
-
-                set_fs(fs);
-
-                len = current->mm->arg_end - current->mm->arg_start;
-                len = len >= ELF_PRARGSZ ? ELF_PRARGSZ : len;
-                (void *) copy_from_user(&psinfo.pr_psargs,
-                               (const char __user *)current->mm->arg_start, len);
-                for (i = 0; i < len; i++)
-                        if (psinfo.pr_psargs[i] == 0)
-                                psinfo.pr_psargs[i] = ' ';
-                psinfo.pr_psargs[len] = 0;
-
-                set_fs(KERNEL_DS);
-        }
-        strlcpy(psinfo.pr_fname, current->comm, sizeof(psinfo.pr_fname));
-
-        /* Try to dump the FPU. */
-        prstatus.pr_fpvalid = dump_fpu(regs, &fpu);
-        if (!prstatus.pr_fpvalid) {
-                numnote--;
-        } else {
-                notes[2].name = "CORE";
-                notes[2].type = NT_PRFPREG;
-                notes[2].datasz = sizeof(fpu);
-                notes[2].data = &fpu;
-        }
-
-        /* Write notes phdr entry. */
-        {
-                struct elf_phdr phdr;
-                int sz = 0;
-
-                for (i = 0; i < numnote; i++)
-                        sz += notesize(&notes[i]);
-
-                phdr.p_type = PT_NOTE;
-                phdr.p_offset = offset;
-                phdr.p_vaddr = 0;
-                phdr.p_paddr = 0;
-                phdr.p_filesz = sz;
-                phdr.p_memsz = 0;
-                phdr.p_flags = 0;
-                phdr.p_align = 0;
-
-                offset += phdr.p_filesz;
-                DUMP_WRITE(&phdr, sizeof(phdr));
-        }
-
-        /* Page-align dumped data. */
-        dataoff = offset = roundup(offset, PAGE_SIZE);
-
-        /* Write program headers for segments dump. */
-        for (vma = current->mm->mmap, i = 0;
-                i < segs && vma != NULL; vma = vma->vm_next) {
-                struct elf_phdr phdr;
-                size_t sz;
-
-                i++;
-
-                sz = vma->vm_end - vma->vm_start;
-
-                phdr.p_type = PT_LOAD;
-                phdr.p_offset = offset;
-                phdr.p_vaddr = vma->vm_start;
-                phdr.p_paddr = 0;
-                phdr.p_filesz = maydump(vma) ? sz : 0;
-                phdr.p_memsz = sz;
-                offset += phdr.p_filesz;
-                phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
-                if (vma->vm_flags & VM_WRITE)
-                        phdr.p_flags |= PF_W;
-                if (vma->vm_flags & VM_EXEC)
-                        phdr.p_flags |= PF_X;
-                phdr.p_align = PAGE_SIZE;
-
-                DUMP_WRITE(&phdr, sizeof(phdr));
-        }
-
-        for (i = 0; i < numnote; i++)
-                if (!writenote(&notes[i], file))
-                        goto end_coredump;
-
-        set_fs(fs);
-
-        DUMP_SEEK(dataoff);
-
-        for (i = 0, vma = current->mm->mmap;
-            i < segs && vma != NULL;
-            vma = vma->vm_next) {
-                unsigned long addr = vma->vm_start;
-                unsigned long len = vma->vm_end - vma->vm_start;
-
-                if (!maydump(vma))
-                        continue;
-                i++;
-                pr_debug("elf_core_dump: writing %08lx %lx\n", addr, len);
-                DUMP_WRITE((void __user *)addr, len);
-        }
-
-        if ((off_t) file->f_pos != offset) {
-                /* Sanity check. */
-                printk("elf_core_dump: file->f_pos (%ld) != offset (%ld)\n",
-                       (off_t) file->f_pos, offset);
-        }
-
-end_coredump:
-        set_fs(fs);
-        return has_dumped;
-}
-
-static int __init init_irix_binfmt(void)
-{
-        extern int init_inventory(void);
-        extern asmlinkage unsigned long sys_call_table;
-        extern asmlinkage unsigned long sys_call_table_irix5;
-
-        init_inventory();
-
-        /*
-         * Copy the IRIX5 syscall table (8000 bytes) into the main syscall
-         * table. The IRIX5 calls are located by an offset of 8000 bytes
-         * from the beginning of the main table.
-         */
-        memcpy((void *) ((unsigned long) &sys_call_table + 8000),
-                &sys_call_table_irix5, 8000);
-
-        return register_binfmt(&irix_format);
-}
-
-static void __exit exit_irix_binfmt(void)
-{
-        /*
-         * Remove the Irix ELF loader.
-         */
-        unregister_binfmt(&irix_format);
-}
-
-module_init(init_irix_binfmt)
-module_exit(exit_irix_binfmt)
diff --git a/arch/mips/kernel/irixinv.c b/arch/mips/kernel/irixinv.c
deleted file mode 100644
index cf2dcd3d6a9..00000000000
--- a/arch/mips/kernel/irixinv.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Support the inventory interface for IRIX binaries
- * This is invoked before the mm layer is working, so we do not
- * use the linked lists for the inventory yet.
- *
- * Miguel de Icaza, 1997.
- */
-#include <linux/mm.h>
-#include <asm/inventory.h>
-#include <asm/uaccess.h>
-
-#define MAX_INVENTORY 50
-int inventory_items = 0;
-
-static inventory_t inventory [MAX_INVENTORY];
-
-void add_to_inventory(int class, int type, int controller, int unit, int state)
-{
-        inventory_t *ni = &inventory [inventory_items];
-
-        if (inventory_items == MAX_INVENTORY)
-                return;
-
-        ni->inv_class      = class;
-        ni->inv_type       = type;
-        ni->inv_controller = controller;
-        ni->inv_unit       = unit;
-        ni->inv_state      = state;
-        ni->inv_next       = ni;
-        inventory_items++;
-}
-
-int dump_inventory_to_user(void __user *userbuf, int size)
-{
-        inventory_t *inv  = &inventory [0];
-        inventory_t __user *user = userbuf;
-        int v;
-
-        if (!access_ok(VERIFY_WRITE, userbuf, size))
-                return -EFAULT;
-
-        for (v = 0; v < inventory_items; v++){
-                inv = &inventory [v];
-                if (copy_to_user (user, inv, sizeof (inventory_t)))
-                        return -EFAULT;
-                user++;
-        }
-        return inventory_items * sizeof(inventory_t);
-}
-
-int __init init_inventory(void)
-{
-        /*
-         * gross hack while we put the right bits all over the kernel
-         * most likely this will not let just anyone run the X server
-         * until we put the right values all over the place
-         */
-        add_to_inventory(10, 3, 0, 0, 16400);
-        add_to_inventory(1, 1, 150, -1, 12);
-        add_to_inventory(1, 3, 0, 0, 8976);
-        add_to_inventory(1, 2, 0, 0, 8976);
-        add_to_inventory(4, 8, 0, 0, 2);
-        add_to_inventory(5, 5, 0, 0, 1);
-        add_to_inventory(3, 3, 0, 0, 32768);
-        add_to_inventory(3, 4, 0, 0, 32768);
-        add_to_inventory(3, 8, 0, 0, 524288);
-        add_to_inventory(3, 9, 0, 0, 64);
-        add_to_inventory(3, 1, 0, 0, 67108864);
-        add_to_inventory(12, 3, 0, 0, 16);
-        add_to_inventory(8, 7, 17, 0, 16777472);
-        add_to_inventory(8, 0, 0, 0, 1);
-        add_to_inventory(2, 1, 0, 13, 2);
-        add_to_inventory(2, 2, 0, 2, 0);
-        add_to_inventory(2, 2, 0, 1, 0);
-        add_to_inventory(7, 14, 0, 0, 6);
-
-        return 0;
-}
diff --git a/arch/mips/kernel/irixioctl.c b/arch/mips/kernel/irixioctl.c
deleted file mode 100644
index b39bdba82e0..00000000000
--- a/arch/mips/kernel/irixioctl.c
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * irixioctl.c: A fucking mess...
- *
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/sockios.h>
-#include <linux/syscalls.h>
-#include <linux/tty.h>
-#include <linux/file.h>
-#include <linux/rcupdate.h>
-
-#include <asm/uaccess.h>
-#include <asm/ioctl.h>
-#include <asm/ioctls.h>
-
-#undef DEBUG_IOCTLS
-#undef DEBUG_MISSING_IOCTL
-
-struct irix_termios {
-        tcflag_t c_iflag, c_oflag, c_cflag, c_lflag;
-        cc_t c_cc[NCCS];
-};
-
-asmlinkage int irix_ioctl(int fd, unsigned long cmd, unsigned long arg)
-{
-        struct tty_struct *tp, *rtp;
-        mm_segment_t old_fs;
-        int i, error = 0;
-
-#ifdef DEBUG_IOCTLS
-        printk("[%s:%d] irix_ioctl(%d, ", current->comm, current->pid, fd);
-#endif
-        switch(cmd) {
-        case 0x00005401:
-#ifdef DEBUG_IOCTLS
-                printk("TCGETA, %08lx) ", arg);
-#endif
-                error = sys_ioctl(fd, TCGETA, arg);
-                break;
-
-        case 0x0000540d: {
-                struct termios kt;
-                struct irix_termios __user *it =
-                        (struct irix_termios __user *) arg;
-
-#ifdef DEBUG_IOCTLS
-                printk("TCGETS, %08lx) ", arg);
-#endif
-                if (!access_ok(VERIFY_WRITE, it, sizeof(*it))) {
-                        error = -EFAULT;
-                        break;
-                }
-                old_fs = get_fs(); set_fs(get_ds());
-                error = sys_ioctl(fd, TCGETS, (unsigned long) &kt);
-                set_fs(old_fs);
-                if (error)
-                        break;
-
-                error = __put_user(kt.c_iflag, &it->c_iflag);
-                error |= __put_user(kt.c_oflag, &it->c_oflag);
-                error |= __put_user(kt.c_cflag, &it->c_cflag);
-                error |= __put_user(kt.c_lflag, &it->c_lflag);
-
-                for (i = 0; i < NCCS; i++)
-                        error |= __put_user(kt.c_cc[i], &it->c_cc[i]);
-                break;
-        }
-
-        case 0x0000540e: {
-                struct termios kt;
-                struct irix_termios *it = (struct irix_termios *) arg;
-
-#ifdef DEBUG_IOCTLS
-                printk("TCSETS, %08lx) ", arg);
-#endif
-                if (!access_ok(VERIFY_READ, it, sizeof(*it))) {
-                        error = -EFAULT;
-                        break;
-                }
-                old_fs = get_fs(); set_fs(get_ds());
-                error = sys_ioctl(fd, TCGETS, (unsigned long) &kt);
-                set_fs(old_fs);
-                if (error)
-                        break;
-
-                error = __get_user(kt.c_iflag, &it->c_iflag);
-                error |= __get_user(kt.c_oflag, &it->c_oflag);
-                error |= __get_user(kt.c_cflag, &it->c_cflag);
-                error |= __get_user(kt.c_lflag, &it->c_lflag);
-
-                for (i = 0; i < NCCS; i++)
-                        error |= __get_user(kt.c_cc[i], &it->c_cc[i]);
-
-                if (error)
-                        break;
-                old_fs = get_fs(); set_fs(get_ds());
-                error = sys_ioctl(fd, TCSETS, (unsigned long) &kt);
-                set_fs(old_fs);
-                break;
-        }
-
-        case 0x0000540f:
-#ifdef DEBUG_IOCTLS
-                printk("TCSETSW, %08lx) ", arg);
-#endif
-                error = sys_ioctl(fd, TCSETSW, arg);
-                break;
-
-        case 0x00005471:
-#ifdef DEBUG_IOCTLS
-                printk("TIOCNOTTY, %08lx) ", arg);
-#endif
-                error = sys_ioctl(fd, TIOCNOTTY, arg);
-                break;
-
-        case 0x00007416: {
-                pid_t pid;
-#ifdef DEBUG_IOCTLS
-                printk("TIOCGSID, %08lx) ", arg);
-#endif
-                old_fs = get_fs(); set_fs(get_ds());
-                error = sys_ioctl(fd, TIOCGSID, (unsigned long)&pid);
-                set_fs(old_fs);
-                if (!error)
-                        error = put_user(pid, (unsigned long __user *) arg);
-                break;
-        }
-        case 0x746e:
-                /* TIOCSTART, same effect as hitting ^Q */
-#ifdef DEBUG_IOCTLS
-                printk("TIOCSTART, %08lx) ", arg);
-#endif
-                error = sys_ioctl(fd, TCXONC, TCOON);
-                break;
-
-        case 0x20006968:
-#ifdef DEBUG_IOCTLS
-                printk("SIOCGETLABEL, %08lx) ", arg);
-#endif
-                error = -ENOPKG;
-                break;
-
-        case 0x40047477:
-#ifdef DEBUG_IOCTLS
-                printk("TIOCGPGRP, %08lx) ", arg);
-#endif
-                error = sys_ioctl(fd, TIOCGPGRP, arg);
-#ifdef DEBUG_IOCTLS
-                printk("arg=%d ", *(int *)arg);
-#endif
-                break;
-
-        case 0x40087468:
-#ifdef DEBUG_IOCTLS
-                printk("TIOCGWINSZ, %08lx) ", arg);
-#endif
-                error = sys_ioctl(fd, TIOCGWINSZ, arg);
-                break;
-
-        case 0x8004667e:
-                error = sys_ioctl(fd, FIONBIO, arg);
-                break;
-
-        case 0x80047476:
-                error = sys_ioctl(fd, TIOCSPGRP, arg);
-                break;
-
-        case 0x8020690c:
-                error = sys_ioctl(fd, SIOCSIFADDR, arg);
-                break;
-
-        case 0x80206910:
-                error = sys_ioctl(fd, SIOCSIFFLAGS, arg);
-                break;
-
-        case 0xc0206911:
-                error = sys_ioctl(fd, SIOCGIFFLAGS, arg);
-                break;
-
-        case 0xc020691b:
-                error = sys_ioctl(fd, SIOCGIFMETRIC, arg);
-                break;
-
-        default: {
-#ifdef DEBUG_MISSING_IOCTL
-                char *msg = "Unimplemented IOCTL cmd tell linux-mips@linux-mips.org\n";
-
-#ifdef DEBUG_IOCTLS
-                printk("UNIMP_IOCTL, %08lx)\n", arg);
-#endif
-                old_fs = get_fs(); set_fs(get_ds());
-                sys_write(2, msg, strlen(msg));
-                set_fs(old_fs);
-                printk("[%s:%d] Does unimplemented IRIX ioctl cmd %08lx\n",
-                       current->comm, current->pid, cmd);
-                do_exit(255);
-#else
-                error = sys_ioctl(fd, cmd, arg);
-#endif
-        }
-
-        };
-#ifdef DEBUG_IOCTLS
-        printk("error=%d\n", error);
-#endif
-        return error;
-}
diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c
deleted file mode 100644
index 0215c805a59..00000000000
--- a/arch/mips/kernel/irixsig.c
+++ /dev/null
@@ -1,888 +0,0 @@
-/*
- * irixsig.c: WHEEE, IRIX signals!  YOW, am I compatible or what?!?!
- *
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- * Copyright (C) 1997 - 2000 Ralf Baechle (ralf@gnu.org)
- * Copyright (C) 2000 Silicon Graphics, Inc.
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/smp.h>
-#include <linux/time.h>
-#include <linux/ptrace.h>
-#include <linux/resource.h>
-
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-
-#undef DEBUG_SIG
-
-#define _S(nr) (1<<((nr)-1))
-
-#define _BLOCKABLE (~(_S(SIGKILL) | _S(SIGSTOP)))
-
-#define _IRIX_NSIG              128
-#define _IRIX_NSIG_BPW          BITS_PER_LONG
-#define _IRIX_NSIG_WORDS        (_IRIX_NSIG / _IRIX_NSIG_BPW)
-
-typedef struct {
-        unsigned long sig[_IRIX_NSIG_WORDS];
-} irix_sigset_t;
-
-struct sigctx_irix5 {
-        u32 rmask, cp0_status;
-        u64 pc;
-        u64 regs[32];
-        u64 fpregs[32];
-        u32 usedfp, fpcsr, fpeir, sstk_flags;
-        u64 hi, lo;
-        u64 cp0_cause, cp0_badvaddr, _unused0;
-        irix_sigset_t sigset;
-        u64 weird_fpu_thing;
-        u64 _unused1[31];
-};
-
-#ifdef DEBUG_SIG
-/* Debugging */
-static inline void dump_irix5_sigctx(struct sigctx_irix5 *c)
-{
-        int i;
-
-        printk("misc: rmask[%08lx] status[%08lx] pc[%08lx]\n",
-               (unsigned long) c->rmask,
-               (unsigned long) c->cp0_status,
-               (unsigned long) c->pc);
-        printk("regs: ");
-        for(i = 0; i < 16; i++)
-                printk("[%d]<%08lx> ", i, (unsigned long) c->regs[i]);
-        printk("\nregs: ");
-        for(i = 16; i < 32; i++)
-                printk("[%d]<%08lx> ", i, (unsigned long) c->regs[i]);
-        printk("\nfpregs: ");
-        for(i = 0; i < 16; i++)
-                printk("[%d]<%08lx> ", i, (unsigned long) c->fpregs[i]);
-        printk("\nfpregs: ");
-        for(i = 16; i < 32; i++)
-                printk("[%d]<%08lx> ", i, (unsigned long) c->fpregs[i]);
-        printk("misc: usedfp[%d] fpcsr[%08lx] fpeir[%08lx] stk_flgs[%08lx]\n",
-               (int) c->usedfp, (unsigned long) c->fpcsr,
-               (unsigned long) c->fpeir, (unsigned long) c->sstk_flags);
-        printk("misc: hi[%08lx] lo[%08lx] cause[%08lx] badvaddr[%08lx]\n",
-               (unsigned long) c->hi, (unsigned long) c->lo,
-               (unsigned long) c->cp0_cause, (unsigned long) c->cp0_badvaddr);
-        printk("misc: sigset<0>[%08lx] sigset<1>[%08lx] sigset<2>[%08lx] "
-               "sigset<3>[%08lx]\n", (unsigned long) c->sigset.sig[0],
-               (unsigned long) c->sigset.sig[1],
-               (unsigned long) c->sigset.sig[2],
-               (unsigned long) c->sigset.sig[3]);
-}
-#endif
-
-static int setup_irix_frame(struct k_sigaction *ka, struct pt_regs *regs,
-                            int signr, sigset_t *oldmask)
-{
-        struct sigctx_irix5 __user *ctx;
-        unsigned long sp;
-        int error, i;
-
-        sp = regs->regs[29];
-        sp -= sizeof(struct sigctx_irix5);
-        sp &= ~(0xf);
-        ctx = (struct sigctx_irix5 __user *) sp;
-        if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)))
-                goto segv_and_exit;
-
-        error = __put_user(0, &ctx->weird_fpu_thing);
-        error |= __put_user(~(0x00000001), &ctx->rmask);
-        error |= __put_user(0, &ctx->regs[0]);
-        for(i = 1; i < 32; i++)
-                error |= __put_user((u64) regs->regs[i], &ctx->regs[i]);
-
-        error |= __put_user((u64) regs->hi, &ctx->hi);
-        error |= __put_user((u64) regs->lo, &ctx->lo);
-        error |= __put_user((u64) regs->cp0_epc, &ctx->pc);
-        error |= __put_user(!!used_math(), &ctx->usedfp);
-        error |= __put_user((u64) regs->cp0_cause, &ctx->cp0_cause);
-        error |= __put_user((u64) regs->cp0_badvaddr, &ctx->cp0_badvaddr);
-
-        error |= __put_user(0, &ctx->sstk_flags); /* XXX sigstack unimp... todo... */
-
-        error |= __copy_to_user(&ctx->sigset, oldmask, sizeof(irix_sigset_t)) ? -EFAULT : 0;
-
-        if (error)
-                goto segv_and_exit;
-
-#ifdef DEBUG_SIG
-        dump_irix5_sigctx(ctx);
-#endif
-
-        regs->regs[4] = (unsigned long) signr;
-        regs->regs[5] = 0; /* XXX sigcode XXX */
-        regs->regs[6] = regs->regs[29] = sp;
-        regs->regs[7] = (unsigned long) ka->sa.sa_handler;
-        regs->regs[25] = regs->cp0_epc = (unsigned long) ka->sa_restorer;
-
-        return 1;
-
-segv_and_exit:
-        force_sigsegv(signr, current);
-        return 0;
-}
-
-static int inline
-setup_irix_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
-               int signr, sigset_t *oldmask, siginfo_t *info)
-{
-        printk("Aiee: setup_tr_frame wants to be written");
-        do_exit(SIGSEGV);
-}
-
-static inline int handle_signal(unsigned long sig, siginfo_t *info,
-        struct k_sigaction *ka, sigset_t *oldset, struct pt_regs * regs)
-{
-        int ret;
-
-        switch(regs->regs[0]) {
-        case ERESTARTNOHAND:
-                regs->regs[2] = EINTR;
-                break;
-        case ERESTARTSYS:
-                if(!(ka->sa.sa_flags & SA_RESTART)) {
-                        regs->regs[2] = EINTR;
-                        break;
-                }
-        /* fallthrough */
-        case ERESTARTNOINTR:            /* Userland will reload $v0.  */
-                regs->cp0_epc -= 8;
-        }
-
-        regs->regs[0] = 0;              /* Don't deal with this again.  */
-
-        if (ka->sa.sa_flags & SA_SIGINFO)
-                ret = setup_irix_rt_frame(ka, regs, sig, oldset, info);
-        else
-                ret = setup_irix_frame(ka, regs, sig, oldset);
-
-        spin_lock_irq(&current->sighand->siglock);
-        sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
-        if (!(ka->sa.sa_flags & SA_NODEFER))
-                sigaddset(&current->blocked, sig);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        return ret;
-}
-
-void do_irix_signal(struct pt_regs *regs)
-{
-        struct k_sigaction ka;
-        siginfo_t info;
-        int signr;
-        sigset_t *oldset;
-
-        /*
-         * We want the common case to go fast, which is why we may in certain
-         * cases get here from kernel mode. Just return without doing anything
-         * if so.
-         */
-        if (!user_mode(regs))
-                return;
-
-        if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                oldset = &current->saved_sigmask;
-        else
-                oldset = &current->blocked;
-
-        signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-        if (signr > 0) {
-                /* Whee!  Actually deliver the signal.  */
-                if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
-                        /* a signal was successfully delivered; the saved
-                         * sigmask will have been stored in the signal frame,
-                         * and will be restored by sigreturn, so we can simply
-                         * clear the TIF_RESTORE_SIGMASK flag */
-                        if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                                clear_thread_flag(TIF_RESTORE_SIGMASK);
-                }
-
-                return;
-        }
-
-        /*
-         * Who's code doesn't conform to the restartable syscall convention
-         * dies here!!!  The li instruction, a single machine instruction,
-         * must directly be followed by the syscall instruction.
-         */
-        if (regs->regs[0]) {
-                if (regs->regs[2] == ERESTARTNOHAND ||
-                    regs->regs[2] == ERESTARTSYS ||
-                    regs->regs[2] == ERESTARTNOINTR) {
-                        regs->cp0_epc -= 8;
-                }
-                if (regs->regs[2] == ERESTART_RESTARTBLOCK) {
-                        regs->regs[2] = __NR_restart_syscall;
-                        regs->regs[7] = regs->regs[26];
-                        regs->cp0_epc -= 4;
-                }
-                regs->regs[0] = 0;      /* Don't deal with this again.  */
-        }
-
-        /*
-        * If there's no signal to deliver, we just put the saved sigmask
-        * back
-        */
-        if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
-                clear_thread_flag(TIF_RESTORE_SIGMASK);
-                sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
-        }
-}
-
-asmlinkage void
-irix_sigreturn(struct pt_regs *regs)
-{
-        struct sigctx_irix5 __user *context, *magic;
-        unsigned long umask, mask;
-        u64 *fregs;
-        u32 usedfp;
-        int error, sig, i, base = 0;
-        sigset_t blocked;
-
-        /* Always make any pending restarted system calls return -EINTR */
-        current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-        if (regs->regs[2] == 1000)
-                base = 1;
-
-        context = (struct sigctx_irix5 __user *) regs->regs[base + 4];
-        magic = (struct sigctx_irix5 __user *) regs->regs[base + 5];
-        sig = (int) regs->regs[base + 6];
-#ifdef DEBUG_SIG
-        printk("[%s:%d] IRIX sigreturn(scp[%p],ucp[%p],sig[%d])\n",
-               current->comm, current->pid, context, magic, sig);
-#endif
-        if (!context)
-                context = magic;
-        if (!access_ok(VERIFY_READ, context, sizeof(struct sigctx_irix5)))
-                goto badframe;
-
-#ifdef DEBUG_SIG
-        dump_irix5_sigctx(context);
-#endif
-
-        error = __get_user(regs->cp0_epc, &context->pc);
-        error |= __get_user(umask, &context->rmask);
-
-        mask = 2;
-        for (i = 1; i < 32; i++, mask <<= 1) {
-                if (umask & mask)
-                        error |= __get_user(regs->regs[i], &context->regs[i]);
-        }
-        error |= __get_user(regs->hi, &context->hi);
-        error |= __get_user(regs->lo, &context->lo);
-
-        error |= __get_user(usedfp, &context->usedfp);
-        if ((umask & 1) && usedfp) {
-                fregs = (u64 *) &current->thread.fpu;
-
-                for(i = 0; i < 32; i++)
-                        error |= __get_user(fregs[i], &context->fpregs[i]);
-                error |= __get_user(current->thread.fpu.fcr31, &context->fpcsr);
-        }
-
-        /* XXX do sigstack crapola here... XXX */
-
-        error |= __copy_from_user(&blocked, &context->sigset, sizeof(blocked)) ? -EFAULT : 0;
-
-        if (error)
-                goto badframe;
-
-        sigdelsetmask(&blocked, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = blocked;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        /*
-         * Don't let your children do this ...
-         */
-        __asm__ __volatile__(
-                "move\t$29,%0\n\t"
-                "j\tsyscall_exit"
-                :/* no outputs */
-                :"r" (&regs));
-                /* Unreached */
-
-badframe:
-        force_sig(SIGSEGV, current);
-}
-
-struct sigact_irix5 {
-        int flags;
-        void (*handler)(int);
-        u32 sigset[4];
-        int _unused0[2];
-};
-
-#define SIG_SETMASK32   256     /* Goodie from SGI for BSD compatibility:
-                                   set only the low 32 bit of the sigset.  */
-
-#ifdef DEBUG_SIG
-static inline void dump_sigact_irix5(struct sigact_irix5 *p)
-{
-        printk("<f[%d] hndlr[%08lx] msk[%08lx]>", p->flags,
-               (unsigned long) p->handler,
-               (unsigned long) p->sigset[0]);
-}
-#endif
-
-asmlinkage int
-irix_sigaction(int sig, const struct sigaction __user *act,
-              struct sigaction __user *oact, void __user *trampoline)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-
-#ifdef DEBUG_SIG
-        printk(" (%d,%s,%s,%08lx) ", sig, (!new ? "0" : "NEW"),
-               (!old ? "0" : "OLD"), trampoline);
-        if(new) {
-                dump_sigact_irix5(new); printk(" ");
-        }
-#endif
-        if (act) {
-                sigset_t mask;
-                int err;
-
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)))
-                        return -EFAULT;
-                err = __get_user(new_ka.sa.sa_handler, &act->sa_handler);
-                err |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-
-                err |= __copy_from_user(&mask, &act->sa_mask, sizeof(sigset_t)) ? -EFAULT : 0;
-                if (err)
-                        return err;
-
-                /*
-                 * Hmmm... methinks IRIX libc always passes a valid trampoline
-                 * value for all invocations of sigaction.  Will have to
-                 * investigate.  POSIX POSIX, die die die...
-                 */
-                new_ka.sa_restorer = trampoline;
-        }
-
-/* XXX Implement SIG_SETMASK32 for IRIX compatibility */
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
-        if (!ret && oact) {
-                int err;
-
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)))
-                        return -EFAULT;
-
-                err = __put_user(old_ka.sa.sa_handler, &oact->sa_handler);
-                err |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-                err |= __copy_to_user(&oact->sa_mask, &old_ka.sa.sa_mask,
-                               sizeof(sigset_t)) ? -EFAULT : 0;
-                if (err)
-                        return -EFAULT;
-        }
-
-        return ret;
-}
-
-asmlinkage int irix_sigpending(irix_sigset_t __user *set)
-{
-        return do_sigpending(set, sizeof(*set));
-}
-
-asmlinkage int irix_sigprocmask(int how, irix_sigset_t __user *new,
-        irix_sigset_t __user *old)
-{
-        sigset_t oldbits, newbits;
-
-        if (new) {
-                if (!access_ok(VERIFY_READ, new, sizeof(*new)))
-                        return -EFAULT;
-                if (__copy_from_user(&newbits, new, sizeof(unsigned long)*4))
-                        return -EFAULT;
-                sigdelsetmask(&newbits, ~_BLOCKABLE);
-
-                spin_lock_irq(&current->sighand->siglock);
-                oldbits = current->blocked;
-
-                switch(how) {
-                case 1:
-                        sigorsets(&newbits, &oldbits, &newbits);
-                        break;
-
-                case 2:
-                        sigandsets(&newbits, &oldbits, &newbits);
-                        break;
-
-                case 3:
-                        break;
-
-                case 256:
-                        siginitset(&newbits, newbits.sig[0]);
-                        break;
-
-                default:
-                        spin_unlock_irq(&current->sighand->siglock);
-                        return -EINVAL;
-                }
-                recalc_sigpending();
-                spin_unlock_irq(&current->sighand->siglock);
-        }
-        if (old)
-                return copy_to_user(old, &current->blocked,
-                                  sizeof(unsigned long)*4) ? -EFAULT : 0;
-
-        return 0;
-}
-
-asmlinkage int irix_sigsuspend(struct pt_regs *regs)
-{
-        sigset_t newset;
-        sigset_t __user *uset;
-
-        uset = (sigset_t __user *) regs->regs[4];
-        if (copy_from_user(&newset, uset, sizeof(sigset_t)))
-                return -EFAULT;
-        sigdelsetmask(&newset, ~_BLOCKABLE);
-
-        spin_lock_irq(&current->sighand->siglock);
-        current->saved_sigmask = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        current->state = TASK_INTERRUPTIBLE;
-        schedule();
-        set_thread_flag(TIF_RESTORE_SIGMASK);
-        return -ERESTARTNOHAND;
-}
-
-/* hate hate hate... */
-struct irix5_siginfo {
-        int sig, code, error;
-        union {
-                char unused[128 - (3 * 4)]; /* Safety net. */
-                struct {
-                        int pid;
-                        union {
-                                int uid;
-                                struct {
-                                        int utime, status, stime;
-                                } child;
-                        } procdata;
-                } procinfo;
-
-                unsigned long fault_addr;
-
-                struct {
-                        int fd;
-                        long band;
-                } fileinfo;
-
-                unsigned long sigval;
-        } stuff;
-};
-
-asmlinkage int irix_sigpoll_sys(unsigned long __user *set,
-        struct irix5_siginfo __user *info, struct timespec __user *tp)
-{
-        long expire = MAX_SCHEDULE_TIMEOUT;
-        sigset_t kset;
-        int i, sig, error, timeo = 0;
-        struct timespec ktp;
-
-#ifdef DEBUG_SIG
-        printk("[%s:%d] irix_sigpoll_sys(%p,%p,%p)\n",
-               current->comm, current->pid, set, info, tp);
-#endif
-
-        /* Must always specify the signal set. */
-        if (!set)
-                return -EINVAL;
-
-        if (copy_from_user(&kset, set, sizeof(set)))
-                return -EFAULT;
-
-        if (info && clear_user(info, sizeof(*info))) {
-                error = -EFAULT;
-                goto out;
-        }
-
-        if (tp) {
-                if (copy_from_user(&ktp, tp, sizeof(*tp)))
-                        return -EFAULT;
-
-                if (!ktp.tv_sec && !ktp.tv_nsec)
-                        return -EINVAL;
-
-                expire = timespec_to_jiffies(&ktp) +
-                         (ktp.tv_sec || ktp.tv_nsec);
-        }
-
-        while(1) {
-                long tmp = 0;
-
-                expire = schedule_timeout_interruptible(expire);
-
-                for (i=0; i < _IRIX_NSIG_WORDS; i++)
-                        tmp |= (current->pending.signal.sig[i] & kset.sig[i]);
-
-                if (tmp)
-                        break;
-                if (!expire) {
-                        timeo = 1;
-                        break;
-                }
-                if (signal_pending(current))
-                        return -EINTR;
-        }
-        if (timeo)
-                return -EAGAIN;
-
-        for (sig = 1; i <= 65 /* IRIX_NSIG */; sig++) {
-                if (sigismember (&kset, sig))
-                        continue;
-                if (sigismember (&current->pending.signal, sig)) {
-                        /* XXX need more than this... */
-                        if (info)
-                                return copy_to_user(&info->sig, &sig, sizeof(sig));
-                        return 0;
-                }
-        }
-
-        /* Should not get here, but do something sane if we do. */
-        error = -EINTR;
-
-out:
-        return error;
-}
-
-/* This is here because of irix5_siginfo definition. */
-#define IRIX_P_PID    0
-#define IRIX_P_PGID   2
-#define IRIX_P_ALL    7
-
-#define W_EXITED     1
-#define W_TRAPPED    2
-#define W_STOPPED    4
-#define W_CONT       8
-#define W_NOHANG    64
-
-#define W_MASK      (W_EXITED | W_TRAPPED | W_STOPPED | W_CONT | W_NOHANG)
-
-asmlinkage int irix_waitsys(int type, int upid,
-        struct irix5_siginfo __user *info, int options,
-        struct rusage __user *ru)
-{
-        struct pid *pid = NULL;
-        int flag, retval;
-        DECLARE_WAITQUEUE(wait, current);
-        struct task_struct *tsk;
-        struct task_struct *p;
-        struct list_head *_p;
-
-        if (!info)
-                return -EINVAL;
-
-        if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
-                return -EFAULT;
-
-        if (ru)
-                if (!access_ok(VERIFY_WRITE, ru, sizeof(*ru)))
-                        return -EFAULT;
-
-        if (options & ~W_MASK)
-                return -EINVAL;
-
-        if (type != IRIX_P_PID && type != IRIX_P_PGID && type != IRIX_P_ALL)
-                return -EINVAL;
-
-        if (type != IRIX_P_ALL)
-                pid = find_get_pid(upid);
-        add_wait_queue(&current->signal->wait_chldexit, &wait);
-repeat:
-        flag = 0;
-        current->state = TASK_INTERRUPTIBLE;
-        read_lock(&tasklist_lock);
-        tsk = current;
-        list_for_each(_p, &tsk->children) {
-                p = list_entry(_p, struct task_struct, sibling);
-                if ((type == IRIX_P_PID) && task_pid(p) != pid)
-                        continue;
-                if ((type == IRIX_P_PGID) && task_pgrp(p) != pid)
-                        continue;
-                if ((p->exit_signal != SIGCHLD))
-                        continue;
-                flag = 1;
-                switch (p->state) {
-                case TASK_STOPPED:
-                        if (!p->exit_code)
-                                continue;
-                        if (!(options & (W_TRAPPED|W_STOPPED)) &&
-                            !(p->ptrace & PT_PTRACED))
-                                continue;
-                        read_unlock(&tasklist_lock);
-
-                        /* move to end of parent's list to avoid starvation */
-                        write_lock_irq(&tasklist_lock);
-                        remove_parent(p);
-                        add_parent(p);
-                        write_unlock_irq(&tasklist_lock);
-                        retval = ru ? getrusage(p, RUSAGE_BOTH, ru) : 0;
-                        if (retval)
-                                goto end_waitsys;
-
-                        retval = __put_user(SIGCHLD, &info->sig);
-                        retval |= __put_user(0, &info->code);
-                        retval |= __put_user(task_pid_vnr(p), &info->stuff.procinfo.pid);
-                        retval |= __put_user((p->exit_code >> 8) & 0xff,
-                                   &info->stuff.procinfo.procdata.child.status);
-                        retval |= __put_user(p->utime, &info->stuff.procinfo.procdata.child.utime);
-                        retval |= __put_user(p->stime, &info->stuff.procinfo.procdata.child.stime);
-                        if (retval)
-                                goto end_waitsys;
-
-                        p->exit_code = 0;
-                        goto end_waitsys;
-
-                case EXIT_ZOMBIE:
-                        current->signal->cutime += p->utime + p->signal->cutime;
-                        current->signal->cstime += p->stime + p->signal->cstime;
-                        if (ru != NULL)
-                                getrusage(p, RUSAGE_BOTH, ru);
-                        retval = __put_user(SIGCHLD, &info->sig);
-                        retval |= __put_user(1, &info->code);      /* CLD_EXITED */
-                        retval |= __put_user(task_pid_vnr(p), &info->stuff.procinfo.pid);
-                        retval |= __put_user((p->exit_code >> 8) & 0xff,
-                                   &info->stuff.procinfo.procdata.child.status);
-                        retval |= __put_user(p->utime,
-                                   &info->stuff.procinfo.procdata.child.utime);
-                        retval |= __put_user(p->stime,
-                                   &info->stuff.procinfo.procdata.child.stime);
-                        if (retval)
-                                goto end_waitsys;
-
-                        if (p->real_parent != p->parent) {
-                                write_lock_irq(&tasklist_lock);
-                                remove_parent(p);
-                                p->parent = p->real_parent;
-                                add_parent(p);
-                                do_notify_parent(p, SIGCHLD);
-                                write_unlock_irq(&tasklist_lock);
-                        } else
-                                release_task(p);
-                        goto end_waitsys;
-                default:
-                        continue;
-                }
-                tsk = next_thread(tsk);
-        }
-        read_unlock(&tasklist_lock);
-        if (flag) {
-                retval = 0;
-                if (options & W_NOHANG)
-                        goto end_waitsys;
-                retval = -ERESTARTSYS;
-                if (signal_pending(current))
-                        goto end_waitsys;
-                current->state = TASK_INTERRUPTIBLE;
-                schedule();
-                goto repeat;
-        }
-        retval = -ECHILD;
-end_waitsys:
-        current->state = TASK_RUNNING;
-        remove_wait_queue(&current->signal->wait_chldexit, &wait);
-        put_pid(pid);
-
-        return retval;
-}
-
-struct irix5_context {
-        u32 flags;
-        u32 link;
-        u32 sigmask[4];
-        struct { u32 sp, size, flags; } stack;
-        int regs[36];
-        u32 fpregs[32];
-        u32 fpcsr;
-        u32 _unused0;
-        u32 _unused1[47];
-        u32 weird_graphics_thing;
-};
-
-asmlinkage int irix_getcontext(struct pt_regs *regs)
-{
-        int error, i, base = 0;
-        struct irix5_context __user *ctx;
-        unsigned long flags;
-
-        if (regs->regs[2] == 1000)
-                base = 1;
-        ctx = (struct irix5_context __user *) regs->regs[base + 4];
-
-#ifdef DEBUG_SIG
-        printk("[%s:%d] irix_getcontext(%p)\n",
-               current->comm, current->pid, ctx);
-#endif
-
-        if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)))
-                return -EFAULT;
-
-        error = __put_user(current->thread.irix_oldctx, &ctx->link);
-
-        error |= __copy_to_user(&ctx->sigmask, &current->blocked, sizeof(irix_sigset_t)) ? -EFAULT : 0;
-
-        /* XXX Do sigstack stuff someday... */
-        error |= __put_user(0, &ctx->stack.sp);
-        error |= __put_user(0, &ctx->stack.size);
-        error |= __put_user(0, &ctx->stack.flags);
-
-        error |= __put_user(0, &ctx->weird_graphics_thing);
-        error |= __put_user(0, &ctx->regs[0]);
-        for (i = 1; i < 32; i++)
-                error |= __put_user(regs->regs[i], &ctx->regs[i]);
-        error |= __put_user(regs->lo, &ctx->regs[32]);
-        error |= __put_user(regs->hi, &ctx->regs[33]);
-        error |= __put_user(regs->cp0_cause, &ctx->regs[34]);
-        error |= __put_user(regs->cp0_epc, &ctx->regs[35]);
-
-        flags = 0x0f;
-        if (!used_math()) {
-                flags &= ~(0x08);
-        } else {
-                /* XXX wheee... */
-                printk("Wheee, no code for saving IRIX FPU context yet.\n");
-        }
-        error |= __put_user(flags, &ctx->flags);
-
-        return error;
-}
-
-asmlinkage void irix_setcontext(struct pt_regs *regs)
-{
-        struct irix5_context __user *ctx;
-        int err, base = 0;
-        u32 flags;
-
-        if (regs->regs[2] == 1000)
-                base = 1;
-        ctx = (struct irix5_context __user *) regs->regs[base + 4];
-
-#ifdef DEBUG_SIG
-        printk("[%s:%d] irix_setcontext(%p)\n",
-               current->comm, current->pid, ctx);
-#endif
-
-        if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx)))
-                goto segv_and_exit;
-
-        err = __get_user(flags, &ctx->flags);
-        if (flags & 0x02) {
-                /* XXX sigstack garbage, todo... */
-                printk("Wheee, cannot do sigstack stuff in setcontext\n");
-        }
-
-        if (flags & 0x04) {
-                int i;
-
-                /* XXX extra control block stuff... todo... */
-                for (i = 1; i < 32; i++)
-                        err |= __get_user(regs->regs[i], &ctx->regs[i]);
-                err |= __get_user(regs->lo, &ctx->regs[32]);
-                err |= __get_user(regs->hi, &ctx->regs[33]);
-                err |= __get_user(regs->cp0_epc, &ctx->regs[35]);
-        }
-
-        if (flags & 0x08)
-                /* XXX fpu context, blah... */
-                printk(KERN_ERR "Wheee, cannot restore FPU context yet...\n");
-
-        err |= __get_user(current->thread.irix_oldctx, &ctx->link);
-        if (err)
-                goto segv_and_exit;
-
-        /*
-         * Don't let your children do this ...
-         */
-        __asm__ __volatile__(
-                "move\t$29,%0\n\t"
-                "j\tsyscall_exit"
-                :/* no outputs */
-                :"r" (&regs));
-                /* Unreached */
-
-segv_and_exit:
-        force_sigsegv(SIGSEGV, current);
-}
-
-struct irix_sigstack {
-        unsigned long sp;
-        int status;
-};
-
-asmlinkage int irix_sigstack(struct irix_sigstack __user *new,
-        struct irix_sigstack __user *old)
-{
-#ifdef DEBUG_SIG
-        printk("[%s:%d] irix_sigstack(%p,%p)\n",
-               current->comm, current->pid, new, old);
-#endif
-        if (new) {
-                if (!access_ok(VERIFY_READ, new, sizeof(*new)))
-                        return -EFAULT;
-        }
-
-        if (old) {
-                if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
-                        return -EFAULT;
-        }
-
-        return 0;
-}
-
-struct irix_sigaltstack { unsigned long sp; int size; int status; };
-
-asmlinkage int irix_sigaltstack(struct irix_sigaltstack __user *new,
-                                struct irix_sigaltstack __user *old)
-{
-#ifdef DEBUG_SIG
-        printk("[%s:%d] irix_sigaltstack(%p,%p)\n",
-               current->comm, current->pid, new, old);
-#endif
-        if (new)
-                if (!access_ok(VERIFY_READ, new, sizeof(*new)))
-                        return -EFAULT;
-
-        if (old) {
-                if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
-                        return -EFAULT;
-        }
-
-        return 0;
-}
-
-struct irix_procset {
-        int cmd, ltype, lid, rtype, rid;
-};
-
-asmlinkage int irix_sigsendset(struct irix_procset __user *pset, int sig)
-{
-        if (!access_ok(VERIFY_READ, pset, sizeof(*pset)))
-                return -EFAULT;
-#ifdef DEBUG_SIG
-        printk("[%s:%d] irix_sigsendset([%d,%d,%d,%d,%d],%d)\n",
-               current->comm, current->pid,
-               pset->cmd, pset->ltype, pset->lid, pset->rtype, pset->rid,
-               sig);
-#endif
-        return -EINVAL;
-}
diff --git a/arch/mips/kernel/irq-rm9000.c b/arch/mips/kernel/irq-rm9000.c
index ed9febe63d7..b47e4615ec1 100644
--- a/arch/mips/kernel/irq-rm9000.c
+++ b/arch/mips/kernel/irq-rm9000.c
@@ -49,7 +49,7 @@ static void local_rm9k_perfcounter_irq_startup(void *args)
 
 static unsigned int rm9k_perfcounter_irq_startup(unsigned int irq)
 {
-        on_each_cpu(local_rm9k_perfcounter_irq_startup, (void *) irq, 0, 1);
+        on_each_cpu(local_rm9k_perfcounter_irq_startup, (void *) irq, 1);
 
         return 0;
 }
@@ -66,7 +66,7 @@ static void local_rm9k_perfcounter_irq_shutdown(void *args)
 
 static void rm9k_perfcounter_irq_shutdown(unsigned int irq)
 {
-        on_each_cpu(local_rm9k_perfcounter_irq_shutdown, (void *) irq, 0, 1);
+        on_each_cpu(local_rm9k_perfcounter_irq_shutdown, (void *) irq, 1);
 }
 
 static struct irq_chip rm9k_irq_controller = {
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index e3309ff9ece..6045b9a51a3 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -44,8 +44,6 @@ again:
         return irq;
 }
 
-EXPORT_SYMBOL_GPL(allocate_irqno);
-
 /*
  * Allocate the 16 legacy interrupts for i8259 devices.  This happens early
  * in the kernel initialization so treating allocation failure as BUG() is
@@ -66,8 +64,6 @@ void free_irqno(unsigned int irq)
         smp_mb__after_clear_bit();
 }
 
-EXPORT_SYMBOL_GPL(free_irqno);
-
 /*
  * 'what should we do if we get a hw irq event on an illegal vector'.
  * each architecture has to answer this themselves.
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index 640fb0cc6e3..d01665a453f 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -4,7 +4,6 @@
  */
 
 #include <linux/device.h>
-#include <linux/kallsyms.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/module.h>
@@ -84,9 +83,9 @@ void mips_mt_regdump(unsigned long mvpctl)
                                        read_vpe_c0_vpeconf0());
                                 printk("   VPE%d.Status : %08lx\n",
                                        i, read_vpe_c0_status());
-                                printk("   VPE%d.EPC : %08lx ",
-                                       i, read_vpe_c0_epc());
-                                print_symbol("%s\n", read_vpe_c0_epc());
+                                printk("   VPE%d.EPC : %08lx %pS\n",
+                                       i, read_vpe_c0_epc(),
+                                       (void *) read_vpe_c0_epc());
                                 printk("   VPE%d.Cause : %08lx\n",
                                        i, read_vpe_c0_cause());
                                 printk("   VPE%d.Config7 : %08lx\n",
@@ -111,8 +110,8 @@ void mips_mt_regdump(unsigned long mvpctl)
                 }
                 printk("   TCStatus : %08lx\n", tcstatval);
                 printk("   TCBind : %08lx\n", read_tc_c0_tcbind());
-                printk("   TCRestart : %08lx ", read_tc_c0_tcrestart());
-                print_symbol("%s\n", read_tc_c0_tcrestart());
+                printk("   TCRestart : %08lx %pS\n",
+                       read_tc_c0_tcrestart(), (void *) read_tc_c0_tcrestart());
                 printk("   TCHalt : %08lx\n", haltval);
                 printk("   TCContext : %08lx\n", read_tc_c0_tccontext());
                 if (!haltval)
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 2c09a442e5e..c06f5b5d764 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -125,13 +125,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
         *childregs = *regs;
         childregs->regs[7] = 0; /* Clear error flag */
 
-#if defined(CONFIG_BINFMT_IRIX)
-        if (current->personality != PER_LINUX) {
-                /* Under IRIX things are a little different. */
-                childregs->regs[3] = 1;
-                regs->regs[3] = 0;
-        }
-#endif
         childregs->regs[2] = 0; /* Child gets zero as return value */
         regs->regs[2] = p->pid;
 
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 08a9c5070ea..c058c0b61a2 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -34,12 +34,8 @@ NESTED(handle_sys, PT_SIZE, sp)
 
         lw      t1, PT_EPC(sp)          # skip syscall on return
 
-#if defined(CONFIG_BINFMT_IRIX)
-        sltiu   t0, v0, MAX_SYSCALL_NO + 1 # check syscall number
-#else
         subu    v0, v0, __NR_O32_Linux  # check syscall number
         sltiu   t0, v0, __NR_O32_Linux_syscalls + 1
-#endif
         addiu   t1, 4                   # skip to next instruction
         sw      t1, PT_EPC(sp)
         beqz    t0, illegal_syscall
@@ -264,22 +260,14 @@ bad_alignment:
         END(sys_sysmips)
 
         LEAF(sys_syscall)
-#if defined(CONFIG_BINFMT_IRIX)
-        sltiu   v0, a0, MAX_SYSCALL_NO + 1 # check syscall number
-#else
         subu    t0, a0, __NR_O32_Linux  # check syscall number
         sltiu   v0, t0, __NR_O32_Linux_syscalls + 1
-#endif
         sll     t1, t0, 3
         beqz    v0, einval
 
         lw      t2, sys_call_table(t1)          # syscall routine
 
-#if defined(CONFIG_BINFMT_IRIX)
-        li      v1, 4000                        # nr of sys_syscall
-#else
         li      v1, 4000 - __NR_O32_Linux       # index of sys_syscall
-#endif
         beq     t0, v1, einval                  # do not recurse
 
         /* Some syscalls like execve get their arguments from struct pt_regs
@@ -324,13 +312,6 @@ einval:	li	v0, -EINVAL
         .endm
 
         .macro  syscalltable
-#if defined(CONFIG_BINFMT_IRIX)
-        mille   sys_ni_syscall          0       /*    0 -  999 SVR4 flavour */
-        mille   sys_ni_syscall          0       /* 1000 - 1999 32-bit IRIX */
-        mille   sys_ni_syscall          0       /* 2000 - 2999 BSD43 flavour */
-        mille   sys_ni_syscall          0       /* 3000 - 3999 POSIX flavour */
-#endif
-
         sys     sys_syscall             8       /* 4000 */
         sys     sys_exit                1
         sys     sys_fork                0
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index c6a063b2a0d..8af84867e74 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -68,13 +68,6 @@ static char command_line[CL_SIZE];
 const unsigned long mips_io_port_base __read_mostly = -1;
 EXPORT_SYMBOL(mips_io_port_base);
 
-/*
- * isa_slot_offset is the address where E(ISA) busaddress 0 is mapped
- * for the processor.
- */
-unsigned long isa_slot_offset;
-EXPORT_SYMBOL(isa_slot_offset);
-
 static struct resource code_resource = { .name = "Kernel code", };
 static struct resource data_resource = { .name = "Kernel data", };
 
@@ -557,11 +550,7 @@ void __init setup_arch(char **cmdline_p)
         prom_init();
 
 #ifdef CONFIG_EARLY_PRINTK
-        {
-                extern void setup_early_printk(void);
-
-                setup_early_printk();
-        }
+        setup_early_printk();
 #endif
         cpu_report();
         check_bugs_early();
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index cdf87a9dd4b..4410f172b8a 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -131,148 +131,29 @@ asmlinkage __cpuinit void start_secondary(void)
         cpu_idle();
 }
 
-DEFINE_SPINLOCK(smp_call_lock);
-
-struct call_data_struct *call_data;
-
-/*
- * Run a function on all other CPUs.
- *
- *  <mask>      cpuset_t of all processors to run the function on.
- *  <func>      The function to run. This must be fast and non-blocking.
- *  <info>      An arbitrary pointer to pass to the function.
- *  <retry>     If true, keep retrying until ready.
- *  <wait>      If true, wait until function has completed on other CPUs.
- *  [RETURNS]   0 on success, else a negative status code.
- *
- * Does not return until remote CPUs are nearly ready to execute <func>
- * or are or have executed.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler:
- *
- * CPU A                               CPU B
- * Disable interrupts
- *                                     smp_call_function()
- *                                     Take call_lock
- *                                     Send IPIs
- *                                     Wait for all cpus to acknowledge IPI
- *                                     CPU A has not responded, spin waiting
- *                                     for cpu A to respond, holding call_lock
- * smp_call_function()
- * Spin waiting for call_lock
- * Deadlock                            Deadlock
- */
-int smp_call_function_mask(cpumask_t mask, void (*func) (void *info),
-        void *info, int retry, int wait)
+void arch_send_call_function_ipi(cpumask_t mask)
 {
-        struct call_data_struct data;
-        int cpu = smp_processor_id();
-        int cpus;
-
-        /*
-         * Can die spectacularly if this CPU isn't yet marked online
-         */
-        BUG_ON(!cpu_online(cpu));
-
-        cpu_clear(cpu, mask);
-        cpus = cpus_weight(mask);
-        if (!cpus)
-                return 0;
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        spin_lock(&smp_call_lock);
-        call_data = &data;
-        smp_mb();
-
-        /* Send a message to all other CPUs and wait for them to respond */
         mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
-
-        /* Wait for response */
-        /* FIXME: lock-up detection, backtrace on lock-up */
-        while (atomic_read(&data.started) != cpus)
-                barrier();
-
-        if (wait)
-                while (atomic_read(&data.finished) != cpus)
-                        barrier();
-        call_data = NULL;
-        spin_unlock(&smp_call_lock);
-
-        return 0;
 }
 
-int smp_call_function(void (*func) (void *info), void *info, int retry,
-        int wait)
+/*
+ * We reuse the same vector for the single IPI
+ */
+void arch_send_call_function_single_ipi(int cpu)
 {
-        return smp_call_function_mask(cpu_online_map, func, info, retry, wait);
+        mp_ops->send_ipi_mask(cpumask_of_cpu(cpu), SMP_CALL_FUNCTION);
 }
-EXPORT_SYMBOL(smp_call_function);
 
+/*
+ * Call into both interrupt handlers, as we share the IPI for them
+ */
 void smp_call_function_interrupt(void)
 {
-        void (*func) (void *info) = call_data->func;
-        void *info = call_data->info;
-        int wait = call_data->wait;
-
-        /*
-         * Notify initiating CPU that I've grabbed the data and am
-         * about to execute the function.
-         */
-        smp_mb();
-        atomic_inc(&call_data->started);
-
-        /*
-         * At this point the info structure may be out of scope unless wait==1.
-         */
         irq_enter();
-        (*func)(info);
+        generic_smp_call_function_single_interrupt();
+        generic_smp_call_function_interrupt();
         irq_exit();
-
-        if (wait) {
-                smp_mb();
-                atomic_inc(&call_data->finished);
-        }
-}
-
-int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                             int retry, int wait)
-{
-        int ret, me;
-
-        /*
-         * Can die spectacularly if this CPU isn't yet marked online
-         */
-        if (!cpu_online(cpu))
-                return 0;
-
-        me = get_cpu();
-        BUG_ON(!cpu_online(me));
-
-        if (cpu == me) {
-                local_irq_disable();
-                func(info);
-                local_irq_enable();
-                put_cpu();
-                return 0;
-        }
-
-        ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, retry,
-                                     wait);
-
-        put_cpu();
-        return 0;
 }
-EXPORT_SYMBOL(smp_call_function_single);
 
 static void stop_this_cpu(void *dummy)
 {
@@ -286,7 +167,7 @@ static void stop_this_cpu(void *dummy)
 
 void smp_send_stop(void)
 {
-        smp_call_function(stop_this_cpu, NULL, 1, 0);
+        smp_call_function(stop_this_cpu, NULL, 0);
 }
 
 void __init smp_cpus_done(unsigned int max_cpus)
@@ -365,7 +246,7 @@ static void flush_tlb_all_ipi(void *info)
 
 void flush_tlb_all(void)
 {
-        on_each_cpu(flush_tlb_all_ipi, NULL, 1, 1);
+        on_each_cpu(flush_tlb_all_ipi, NULL, 1);
 }
 
 static void flush_tlb_mm_ipi(void *mm)
@@ -385,7 +266,7 @@ static void flush_tlb_mm_ipi(void *mm)
 static inline void smp_on_other_tlbs(void (*func) (void *info), void *info)
 {
 #ifndef CONFIG_MIPS_MT_SMTC
-        smp_call_function(func, info, 1, 1);
+        smp_call_function(func, info, 1);
 #endif
 }
 
@@ -485,7 +366,7 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
                 .addr2 = end,
         };
 
-        on_each_cpu(flush_tlb_kernel_range_ipi, &fd, 1, 1);
+        on_each_cpu(flush_tlb_kernel_range_ipi, &fd, 1);
 }
 
 static void flush_tlb_page_ipi(void *info)
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 3e863186cd2..a516286532a 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -877,7 +877,6 @@ static void ipi_resched_interrupt(void)
         /* Return from interrupt should be enough to cause scheduler check */
 }
 
-
 static void ipi_call_interrupt(void)
 {
         /* Invoke generic function invocation code in smp.c */
diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c
index ebd9db8d1ec..5eb4681a73d 100644
--- a/arch/mips/kernel/stacktrace.c
+++ b/arch/mips/kernel/stacktrace.c
@@ -73,3 +73,4 @@ void save_stack_trace(struct stack_trace *trace)
         prepare_frametrace(regs);
         save_context_stack(trace, regs);
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
deleted file mode 100644
index c357762b801..00000000000
--- a/arch/mips/kernel/sysirix.c
+++ /dev/null
@@ -1,2140 +0,0 @@
-/*
- * sysirix.c: IRIX system call emulation.
- *
- * Copyright (C) 1996 David S. Miller
- * Copyright (C) 1997 Miguel de Icaza
- * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/binfmts.h>
-#include <linux/capability.h>
-#include <linux/highuid.h>
-#include <linux/pagemap.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/slab.h>
-#include <linux/swap.h>
-#include <linux/errno.h>
-#include <linux/time.h>
-#include <linux/timex.h>
-#include <linux/times.h>
-#include <linux/elf.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/utsname.h>
-#include <linux/file.h>
-#include <linux/vfs.h>
-#include <linux/namei.h>
-#include <linux/socket.h>
-#include <linux/security.h>
-#include <linux/syscalls.h>
-#include <linux/resource.h>
-
-#include <asm/ptrace.h>
-#include <asm/page.h>
-#include <asm/uaccess.h>
-#include <asm/inventory.h>
-
-/* 2,191 lines of complete and utter shit coming up... */
-
-extern int max_threads;
-
-/* The sysmp commands supported thus far. */
-#define MP_NPROCS               1 /* # processor in complex */
-#define MP_NAPROCS              2 /* # active processors in complex */
-#define MP_PGSIZE               14 /* Return system page size in v1. */
-
-asmlinkage int irix_sysmp(struct pt_regs *regs)
-{
-        unsigned long cmd;
-        int base = 0;
-        int error = 0;
-
-        if(regs->regs[2] == 1000)
-                base = 1;
-        cmd = regs->regs[base + 4];
-        switch(cmd) {
-        case MP_PGSIZE:
-                error = PAGE_SIZE;
-                break;
-        case MP_NPROCS:
-        case MP_NAPROCS:
-                error = num_online_cpus();
-                break;
-        default:
-                printk("SYSMP[%s:%d]: Unsupported opcode %d\n",
-                       current->comm, current->pid, (int)cmd);
-                error = -EINVAL;
-                break;
-        }
-
-        return error;
-}
-
-/* The prctl commands. */
-#define PR_MAXPROCS              1 /* Tasks/user. */
-#define PR_ISBLOCKED             2 /* If blocked, return 1. */
-#define PR_SETSTACKSIZE          3 /* Set largest task stack size. */
-#define PR_GETSTACKSIZE          4 /* Get largest task stack size. */
-#define PR_MAXPPROCS             5 /* Num parallel tasks. */
-#define PR_UNBLKONEXEC           6 /* When task exec/exit's, unblock. */
-#define PR_SETEXITSIG            8 /* When task exit's, set signal. */
-#define PR_RESIDENT              9 /* Make task unswappable. */
-#define PR_ATTACHADDR           10 /* (Re-)Connect a vma to a task. */
-#define PR_DETACHADDR           11 /* Disconnect a vma from a task. */
-#define PR_TERMCHILD            12 /* Kill child if the parent dies. */
-#define PR_GETSHMASK            13 /* Get the sproc() share mask. */
-#define PR_GETNSHARE            14 /* Number of share group members. */
-#define PR_COREPID              15 /* Add task pid to name when it core. */
-#define PR_ATTACHADDRPERM       16 /* (Re-)Connect vma, with specified prot. */
-#define PR_PTHREADEXIT          17 /* Kill a pthread, only for IRIX 6.[234] */
-
-asmlinkage int irix_prctl(unsigned option, ...)
-{
-        va_list args;
-        int error = 0;
-
-        va_start(args, option);
-        switch (option) {
-        case PR_MAXPROCS:
-                printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
-                       current->comm, current->pid);
-                error = max_threads;
-                break;
-
-        case PR_ISBLOCKED: {
-                struct task_struct *task;
-
-                printk("irix_prctl[%s:%d]: Wants PR_ISBLOCKED\n",
-                       current->comm, current->pid);
-                read_lock(&tasklist_lock);
-                task = find_task_by_vpid(va_arg(args, pid_t));
-                error = -ESRCH;
-                if (error)
-                        error = (task->run_list.next != NULL);
-                read_unlock(&tasklist_lock);
-                /* Can _your_ OS find this out that fast? */
-                break;
-        }
-
-        case PR_SETSTACKSIZE: {
-                long value = va_arg(args, long);
-
-                printk("irix_prctl[%s:%d]: Wants PR_SETSTACKSIZE<%08lx>\n",
-                       current->comm, current->pid, (unsigned long) value);
-                if (value > RLIM_INFINITY)
-                        value = RLIM_INFINITY;
-                if (capable(CAP_SYS_ADMIN)) {
-                        task_lock(current->group_leader);
-                        current->signal->rlim[RLIMIT_STACK].rlim_max =
-                                current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
-                        task_unlock(current->group_leader);
-                        error = value;
-                        break;
-                }
-                task_lock(current->group_leader);
-                if (value > current->signal->rlim[RLIMIT_STACK].rlim_max) {
-                        error = -EINVAL;
-                        task_unlock(current->group_leader);
-                        break;
-                }
-                current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
-                task_unlock(current->group_leader);
-                error = value;
-                break;
-        }
-
-        case PR_GETSTACKSIZE:
-                printk("irix_prctl[%s:%d]: Wants PR_GETSTACKSIZE\n",
-                       current->comm, current->pid);
-                error = current->signal->rlim[RLIMIT_STACK].rlim_cur;
-                break;
-
-        case PR_MAXPPROCS:
-                printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
-                       current->comm, current->pid);
-                error = 1;
-                break;
-
-        case PR_UNBLKONEXEC:
-                printk("irix_prctl[%s:%d]: Wants PR_UNBLKONEXEC\n",
-                       current->comm, current->pid);
-                error = -EINVAL;
-                break;
-
-        case PR_SETEXITSIG:
-                printk("irix_prctl[%s:%d]: Wants PR_SETEXITSIG\n",
-                       current->comm, current->pid);
-
-                /* We can probably play some game where we set the task
-                 * exit_code to some non-zero value when this is requested,
-                 * and check whether exit_code is already set in do_exit().
-                 */
-                error = -EINVAL;
-                break;
-
-        case PR_RESIDENT:
-                printk("irix_prctl[%s:%d]: Wants PR_RESIDENT\n",
-                       current->comm, current->pid);
-                error = 0; /* Compatibility indeed. */
-                break;
-
-        case PR_ATTACHADDR:
-                printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDR\n",
-                       current->comm, current->pid);
-                error = -EINVAL;
-                break;
-
-        case PR_DETACHADDR:
-                printk("irix_prctl[%s:%d]: Wants PR_DETACHADDR\n",
-                       current->comm, current->pid);
-                error = -EINVAL;
-                break;
-
-        case PR_TERMCHILD:
-                printk("irix_prctl[%s:%d]: Wants PR_TERMCHILD\n",
-                       current->comm, current->pid);
-                error = -EINVAL;
-                break;
-
-        case PR_GETSHMASK:
-                printk("irix_prctl[%s:%d]: Wants PR_GETSHMASK\n",
-                       current->comm, current->pid);
-                error = -EINVAL; /* Until I have the sproc() stuff in. */
-                break;
-
-        case PR_GETNSHARE:
-                error = 0;       /* Until I have the sproc() stuff in. */
-                break;
-
-        case PR_COREPID:
-                printk("irix_prctl[%s:%d]: Wants PR_COREPID\n",
-                       current->comm, current->pid);
-                error = -EINVAL;
-                break;
-
-        case PR_ATTACHADDRPERM:
-                printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDRPERM\n",
-                       current->comm, current->pid);
-                error = -EINVAL;
-                break;
-
-        default:
-                printk("irix_prctl[%s:%d]: Non-existant opcode %d\n",
-                       current->comm, current->pid, option);
-                error = -EINVAL;
-                break;
-        }
-        va_end(args);
-
-        return error;
-}
-
-#undef DEBUG_PROCGRPS
-
-extern unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt);
-extern char *prom_getenv(char *name);
-extern long prom_setenv(char *name, char *value);
-
-/* The syssgi commands supported thus far. */
-#define SGI_SYSID         1       /* Return unique per-machine identifier. */
-#define SGI_INVENT        5       /* Fetch inventory  */
-#   define SGI_INV_SIZEOF 1
-#   define SGI_INV_READ   2
-#define SGI_RDNAME        6       /* Return string name of a process. */
-#define SGI_SETNVRAM      8       /* Set PROM variable. */
-#define SGI_GETNVRAM      9       /* Get PROM variable. */
-#define SGI_SETPGID      21       /* Set process group id. */
-#define SGI_SYSCONF      22       /* POSIX sysconf garbage. */
-#define SGI_PATHCONF     24       /* POSIX sysconf garbage. */
-#define SGI_SETGROUPS    40       /* POSIX sysconf garbage. */
-#define SGI_GETGROUPS    41       /* POSIX sysconf garbage. */
-#define SGI_RUSAGE       56       /* BSD style rusage(). */
-#define SGI_SSYNC        62       /* Synchronous fs sync. */
-#define SGI_GETSID       65       /* SysVr4 get session id. */
-#define SGI_ELFMAP       68       /* Map an elf image. */
-#define SGI_TOSSTSAVE   108       /* Toss saved vma's. */
-#define SGI_FP_BCOPY    129       /* Should FPU bcopy be used on this machine? */
-#define SGI_PHYSP      1011       /* Translate virtual into physical page. */
-
-asmlinkage int irix_syssgi(struct pt_regs *regs)
-{
-        unsigned long cmd;
-        int retval, base = 0;
-
-        if (regs->regs[2] == 1000)
-                base = 1;
-
-        cmd = regs->regs[base + 4];
-        switch(cmd) {
-        case SGI_SYSID: {
-                char __user *buf = (char __user *) regs->regs[base + 5];
-
-                /* XXX Use ethernet addr.... */
-                retval = clear_user(buf, 64) ? -EFAULT : 0;
-                break;
-        }
-#if 0
-        case SGI_RDNAME: {
-                int pid = (int) regs->regs[base + 5];
-                char __user *buf = (char __user *) regs->regs[base + 6];
-                struct task_struct *p;
-                char tcomm[sizeof(current->comm)];
-
-                read_lock(&tasklist_lock);
-                p = find_task_by_pid(pid);
-                if (!p) {
-                        read_unlock(&tasklist_lock);
-                        retval = -ESRCH;
-                        break;
-                }
-                get_task_comm(tcomm, p);
-                read_unlock(&tasklist_lock);
-
-                /* XXX Need to check sizes. */
-                retval = copy_to_user(buf, tcomm, sizeof(tcomm)) ? -EFAULT : 0;
-                break;
-        }
-
-        case SGI_GETNVRAM: {
-                char __user *name = (char __user *) regs->regs[base+5];
-                char __user *buf = (char __user *) regs->regs[base+6];
-                char *value;
-                return -EINVAL; /* til I fix it */
-                value = prom_getenv(name);      /* PROM lock?  */
-                if (!value) {
-                        retval = -EINVAL;
-                        break;
-                }
-                /* Do I strlen() for the length? */
-                retval = copy_to_user(buf, value, 128) ? -EFAULT : 0;
-                break;
-        }
-
-        case SGI_SETNVRAM: {
-                char __user *name = (char __user *) regs->regs[base+5];
-                char __user *value = (char __user *) regs->regs[base+6];
-                return -EINVAL; /* til I fix it */
-                retval = prom_setenv(name, value);
-                /* XXX make sure retval conforms to syssgi(2) */
-                printk("[%s:%d] setnvram(\"%s\", \"%s\"): retval %d",
-                       current->comm, current->pid, name, value, retval);
-/*              if (retval == PROM_ENOENT)
-                        retval = -ENOENT; */
-                break;
-        }
-#endif
-
-        case SGI_SETPGID: {
-#ifdef DEBUG_PROCGRPS
-                printk("[%s:%d] setpgid(%d, %d) ",
-                       current->comm, current->pid,
-                       (int) regs->regs[base + 5], (int)regs->regs[base + 6]);
-#endif
-                retval = sys_setpgid(regs->regs[base + 5], regs->regs[base + 6]);
-
-#ifdef DEBUG_PROCGRPS
-                printk("retval=%d\n", retval);
-#endif
-        }
-
-        case SGI_SYSCONF: {
-                switch(regs->regs[base + 5]) {
-                case 1:
-                        retval = (MAX_ARG_PAGES >> 4); /* XXX estimate... */
-                        goto out;
-                case 2:
-                        retval = max_threads;
-                        goto out;
-                case 3:
-                        retval = HZ;
-                        goto out;
-                case 4:
-                        retval = NGROUPS_MAX;
-                        goto out;
-                case 5:
-                        retval = sysctl_nr_open;
-                        goto out;
-                case 6:
-                        retval = 1;
-                        goto out;
-                case 7:
-                        retval = 1;
-                        goto out;
-                case 8:
-                        retval = 199009;
-                        goto out;
-                case 11:
-                        retval = PAGE_SIZE;
-                        goto out;
-                case 12:
-                        retval = 4;
-                        goto out;
-                case 25:
-                case 26:
-                case 27:
-                case 28:
-                case 29:
-                case 30:
-                        retval = 0;
-                        goto out;
-                case 31:
-                        retval = 32;
-                        goto out;
-                default:
-                        retval = -EINVAL;
-                        goto out;
-                };
-        }
-
-        case SGI_SETGROUPS:
-                retval = sys_setgroups((int) regs->regs[base + 5],
-                                       (gid_t __user *) regs->regs[base + 6]);
-                break;
-
-        case SGI_GETGROUPS:
-                retval = sys_getgroups((int) regs->regs[base + 5],
-                                       (gid_t __user *) regs->regs[base + 6]);
-                break;
-
-        case SGI_RUSAGE: {
-                struct rusage __user *ru = (struct rusage __user *) regs->regs[base + 6];
-
-                switch((int) regs->regs[base + 5]) {
-                case 0:
-                        /* rusage self */
-                        retval = getrusage(current, RUSAGE_SELF, ru);
-                        goto out;
-
-                case -1:
-                        /* rusage children */
-                        retval = getrusage(current, RUSAGE_CHILDREN, ru);
-                        goto out;
-
-                default:
-                        retval = -EINVAL;
-                        goto out;
-                };
-        }
-
-        case SGI_SSYNC:
-                sys_sync();
-                retval = 0;
-                break;
-
-        case SGI_GETSID:
-#ifdef DEBUG_PROCGRPS
-                printk("[%s:%d] getsid(%d) ", current->comm, current->pid,
-                       (int) regs->regs[base + 5]);
-#endif
-                retval = sys_getsid(regs->regs[base + 5]);
-#ifdef DEBUG_PROCGRPS
-                printk("retval=%d\n", retval);
-#endif
-                break;
-
-        case SGI_ELFMAP:
-                retval = irix_mapelf((int) regs->regs[base + 5],
-                                     (struct elf_phdr __user *) regs->regs[base + 6],
-                                     (int) regs->regs[base + 7]);
-                break;
-
-        case SGI_TOSSTSAVE:
-                /* XXX We don't need to do anything? */
-                retval = 0;
-                break;
-
-        case SGI_FP_BCOPY:
-                retval = 0;
-                break;
-
-        case SGI_PHYSP: {
-                unsigned long addr = regs->regs[base + 5];
-                int __user *pageno = (int __user *) (regs->regs[base + 6]);
-                struct mm_struct *mm = current->mm;
-                pgd_t *pgdp;
-                pud_t *pudp;
-                pmd_t *pmdp;
-                pte_t *ptep;
-
-                down_read(&mm->mmap_sem);
-                pgdp = pgd_offset(mm, addr);
-                pudp = pud_offset(pgdp, addr);
-                pmdp = pmd_offset(pudp, addr);
-                ptep = pte_offset(pmdp, addr);
-                retval = -EINVAL;
-                if (ptep) {
-                        pte_t pte = *ptep;
-
-                        if (pte_val(pte) & (_PAGE_VALID | _PAGE_PRESENT)) {
-                                /* b0rked on 64-bit */
-                                retval =  put_user((pte_val(pte) & PAGE_MASK) >>
-                                                   PAGE_SHIFT, pageno);
-                        }
-                }
-                up_read(&mm->mmap_sem);
-                break;
-        }
-
-        case SGI_INVENT: {
-                int  arg1    = (int)    regs->regs [base + 5];
-                void __user *buffer = (void __user *) regs->regs [base + 6];
-                int  count   = (int)    regs->regs [base + 7];
-
-                switch (arg1) {
-                case SGI_INV_SIZEOF:
-                        retval = sizeof(inventory_t);
-                        break;
-                case SGI_INV_READ:
-                        retval = dump_inventory_to_user(buffer, count);
-                        break;
-                default:
-                        retval = -EINVAL;
-                }
-                break;
-        }
-
-        default:
-                printk("irix_syssgi: Unsupported command %d\n", (int)cmd);
-                retval = -EINVAL;
-                break;
-        };
-
-out:
-        return retval;
-}
-
-asmlinkage int irix_gtime(struct pt_regs *regs)
-{
-        return get_seconds();
-}
-
-/*
- * IRIX is completely broken... it returns 0 on success, otherwise
- * ENOMEM.
- */
-asmlinkage int irix_brk(unsigned long brk)
-{
-        unsigned long rlim;
-        unsigned long newbrk, oldbrk;
-        struct mm_struct *mm = current->mm;
-        int ret;
-
-        down_write(&mm->mmap_sem);
-        if (brk < mm->end_code) {
-                ret = -ENOMEM;
-                goto out;
-        }
-
-        newbrk = PAGE_ALIGN(brk);
-        oldbrk = PAGE_ALIGN(mm->brk);
-        if (oldbrk == newbrk) {
-                mm->brk = brk;
-                ret = 0;
-                goto out;
-        }
-
-        /*
-         * Always allow shrinking brk
-         */
-        if (brk <= mm->brk) {
-                mm->brk = brk;
-                do_munmap(mm, newbrk, oldbrk-newbrk);
-                ret = 0;
-                goto out;
-        }
-        /*
-         * Check against rlimit and stack..
-         */
-        rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
-        if (rlim >= RLIM_INFINITY)
-                rlim = ~0;
-        if (brk - mm->end_code > rlim) {
-                ret = -ENOMEM;
-                goto out;
-        }
-
-        /*
-         * Check against existing mmap mappings.
-         */
-        if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE)) {
-                ret = -ENOMEM;
-                goto out;
-        }
-
-        /*
-         * Ok, looks good - let it rip.
-         */
-        if (do_brk(oldbrk, newbrk-oldbrk) != oldbrk) {
-                ret = -ENOMEM;
-                goto out;
-        }
-        mm->brk = brk;
-        ret = 0;
-
-out:
-        up_write(&mm->mmap_sem);
-        return ret;
-}
-
-asmlinkage int irix_getpid(struct pt_regs *regs)
-{
-        regs->regs[3] = task_pid_vnr(current->real_parent);
-        return task_pid_vnr(current);
-}
-
-asmlinkage int irix_getuid(struct pt_regs *regs)
-{
-        regs->regs[3] = current->euid;
-        return current->uid;
-}
-
-asmlinkage int irix_getgid(struct pt_regs *regs)
-{
-        regs->regs[3] = current->egid;
-        return current->gid;
-}
-
-asmlinkage int irix_stime(int value)
-{
-        int err;
-        struct timespec tv;
-
-        tv.tv_sec = value;
-        tv.tv_nsec = 0;
-        err = security_settime(&tv, NULL);
-        if (err)
-                return err;
-
-        write_seqlock_irq(&xtime_lock);
-        xtime.tv_sec = value;
-        xtime.tv_nsec = 0;
-        ntp_clear();
-        write_sequnlock_irq(&xtime_lock);
-
-        return 0;
-}
-
-static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
-{
-        value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
-        value->tv_sec = jiffies / HZ;
-}
-
-static inline void getitimer_real(struct itimerval *value)
-{
-        register unsigned long val, interval;
-
-        interval = current->it_real_incr;
-        val = 0;
-        if (del_timer(&current->real_timer)) {
-                unsigned long now = jiffies;
-                val = current->real_timer.expires;
-                add_timer(&current->real_timer);
-                /* look out for negative/zero itimer.. */
-                if (val <= now)
-                        val = now+1;
-                val -= now;
-        }
-        jiffiestotv(val, &value->it_value);
-        jiffiestotv(interval, &value->it_interval);
-}
-
-asmlinkage unsigned int irix_alarm(unsigned int seconds)
-{
-        return alarm_setitimer(seconds);
-}
-
-asmlinkage int irix_pause(void)
-{
-        current->state = TASK_INTERRUPTIBLE;
-        schedule();
-
-        return -EINTR;
-}
-
-/* XXX need more than this... */
-asmlinkage int irix_mount(char __user *dev_name, char __user *dir_name,
-        unsigned long flags, char __user *type, void __user *data, int datalen)
-{
-        printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
-               current->comm, current->pid,
-               dev_name, dir_name, flags, type, data, datalen);
-
-        return sys_mount(dev_name, dir_name, type, flags, data);
-}
-
-struct irix_statfs {
-        short f_type;
-        long  f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
-        char  f_fname[6], f_fpack[6];
-};
-
-asmlinkage int irix_statfs(const char __user *path,
-        struct irix_statfs __user *buf, int len, int fs_type)
-{
-        struct nameidata nd;
-        struct kstatfs kbuf;
-        int error, i;
-
-        /* We don't support this feature yet. */
-        if (fs_type) {
-                error = -EINVAL;
-                goto out;
-        }
-        if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
-                error = -EFAULT;
-                goto out;
-        }
-
-        error = user_path_walk(path, &nd);
-        if (error)
-                goto out;
-
-        error = vfs_statfs(nd.path.dentry, &kbuf);
-        if (error)
-                goto dput_and_out;
-
-        error = __put_user(kbuf.f_type, &buf->f_type);
-        error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
-        error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-        error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-        error |= __put_user(kbuf.f_files, &buf->f_files);
-        error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-        for (i = 0; i < 6; i++) {
-                error |= __put_user(0, &buf->f_fname[i]);
-                error |= __put_user(0, &buf->f_fpack[i]);
-        }
-
-dput_and_out:
-        path_put(&nd.path);
-out:
-        return error;
-}
-
-asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs __user *buf)
-{
-        struct kstatfs kbuf;
-        struct file *file;
-        int error, i;
-
-        if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
-                error = -EFAULT;
-                goto out;
-        }
-
-        if (!(file = fget(fd))) {
-                error = -EBADF;
-                goto out;
-        }
-
-        error = vfs_statfs(file->f_path.dentry, &kbuf);
-        if (error)
-                goto out_f;
-
-        error = __put_user(kbuf.f_type, &buf->f_type);
-        error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
-        error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-        error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-        error |= __put_user(kbuf.f_files, &buf->f_files);
-        error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-
-        for (i = 0; i < 6; i++) {
-                error |= __put_user(0, &buf->f_fname[i]);
-                error |= __put_user(0, &buf->f_fpack[i]);
-        }
-
-out_f:
-        fput(file);
-out:
-        return error;
-}
-
-asmlinkage int irix_setpgrp(int flags)
-{
-        int error;
-
-#ifdef DEBUG_PROCGRPS
-        printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
-#endif
-        if(!flags)
-                error = task_pgrp_vnr(current);
-        else
-                error = sys_setsid();
-#ifdef DEBUG_PROCGRPS
-        printk("returning %d\n", error);
-#endif
-
-        return error;
-}
-
-asmlinkage int irix_times(struct tms __user *tbuf)
-{
-        int err = 0;
-
-        if (tbuf) {
-                if (!access_ok(VERIFY_WRITE, tbuf, sizeof *tbuf))
-                        return -EFAULT;
-
-                err = __put_user(current->utime, &tbuf->tms_utime);
-                err |= __put_user(current->stime, &tbuf->tms_stime);
-                err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
-                err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
-        }
-
-        return err;
-}
-
-asmlinkage int irix_exec(struct pt_regs *regs)
-{
-        int error, base = 0;
-        char *filename;
-
-        if(regs->regs[2] == 1000)
-                base = 1;
-        filename = getname((char __user *) (long)regs->regs[base + 4]);
-        error = PTR_ERR(filename);
-        if (IS_ERR(filename))
-                return error;
-
-        error = do_execve(filename, (char __user * __user *) (long)regs->regs[base + 5],
-                          NULL, regs);
-        putname(filename);
-
-        return error;
-}
-
-asmlinkage int irix_exece(struct pt_regs *regs)
-{
-        int error, base = 0;
-        char *filename;
-
-        if (regs->regs[2] == 1000)
-                base = 1;
-        filename = getname((char __user *) (long)regs->regs[base + 4]);
-        error = PTR_ERR(filename);
-        if (IS_ERR(filename))
-                return error;
-        error = do_execve(filename, (char __user * __user *) (long)regs->regs[base + 5],
-                          (char __user * __user *) (long)regs->regs[base + 6], regs);
-        putname(filename);
-
-        return error;
-}
-
-asmlinkage unsigned long irix_gethostid(void)
-{
-        printk("[%s:%d]: irix_gethostid() called...\n",
-               current->comm, current->pid);
-
-        return -EINVAL;
-}
-
-asmlinkage unsigned long irix_sethostid(unsigned long val)
-{
-        printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
-               current->comm, current->pid, val);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_socket(int family, int type, int protocol)
-{
-        switch(type) {
-        case 1:
-                type = SOCK_DGRAM;
-                break;
-
-        case 2:
-                type = SOCK_STREAM;
-                break;
-
-        case 3:
-                type = 9; /* Invalid... */
-                break;
-
-        case 4:
-                type = SOCK_RAW;
-                break;
-
-        case 5:
-                type = SOCK_RDM;
-                break;
-
-        case 6:
-                type = SOCK_SEQPACKET;
-                break;
-
-        default:
-                break;
-        }
-
-        return sys_socket(family, type, protocol);
-}
-
-asmlinkage int irix_getdomainname(char __user *name, int len)
-{
-        int err;
-
-        down_read(&uts_sem);
-        if (len > __NEW_UTS_LEN)
-                len = __NEW_UTS_LEN;
-        err = copy_to_user(name, utsname()->domainname, len) ? -EFAULT : 0;
-        up_read(&uts_sem);
-
-        return err;
-}
-
-asmlinkage unsigned long irix_getpagesize(void)
-{
-        return PAGE_SIZE;
-}
-
-asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
-                           unsigned long arg2, unsigned long arg3,
-                           unsigned long arg4)
-{
-        switch (opcode) {
-        case 0:
-                return sys_msgget((key_t) arg0, (int) arg1);
-        case 1:
-                return sys_msgctl((int) arg0, (int) arg1,
-                                  (struct msqid_ds __user *)arg2);
-        case 2:
-                return sys_msgrcv((int) arg0, (struct msgbuf __user *) arg1,
-                                  (size_t) arg2, (long) arg3, (int) arg4);
-        case 3:
-                return sys_msgsnd((int) arg0, (struct msgbuf __user *) arg1,
-                                  (size_t) arg2, (int) arg3);
-        default:
-                return -EINVAL;
-        }
-}
-
-asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
-                           unsigned long arg2, unsigned long arg3)
-{
-        switch (opcode) {
-        case 0:
-                return do_shmat((int) arg0, (char __user *) arg1, (int) arg2,
-                                 (unsigned long *) arg3);
-        case 1:
-                return sys_shmctl((int)arg0, (int)arg1,
-                                  (struct shmid_ds __user *)arg2);
-        case 2:
-                return sys_shmdt((char __user *)arg0);
-        case 3:
-                return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
-        default:
-                return -EINVAL;
-        }
-}
-
-asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
-                           unsigned long arg2, int arg3)
-{
-        switch (opcode) {
-        case 0:
-                return sys_semctl((int) arg0, (int) arg1, (int) arg2,
-                                  (union semun) arg3);
-        case 1:
-                return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
-        case 2:
-                return sys_semop((int) arg0, (struct sembuf __user *)arg1,
-                                 (unsigned int) arg2);
-        default:
-                return -EINVAL;
-        }
-}
-
-static inline loff_t llseek(struct file *file, loff_t offset, int origin)
-{
-        loff_t (*fn)(struct file *, loff_t, int);
-        loff_t retval;
-
-        fn = default_llseek;
-        if (file->f_op && file->f_op->llseek)
-        fn = file->f_op->llseek;
-        lock_kernel();
-        retval = fn(file, offset, origin);
-        unlock_kernel();
-
-        return retval;
-}
-
-asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
-                            int origin)
-{
-        struct file * file;
-        loff_t offset;
-        int retval;
-
-        retval = -EBADF;
-        file = fget(fd);
-        if (!file)
-                goto bad;
-        retval = -EINVAL;
-        if (origin > 2)
-                goto out_putf;
-
-        offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
-        retval = (int) offset;
-
-out_putf:
-        fput(file);
-bad:
-        return retval;
-}
-
-asmlinkage int irix_sginap(int ticks)
-{
-        schedule_timeout_interruptible(ticks);
-        return 0;
-}
-
-asmlinkage int irix_sgikopt(char __user *istring, char __user *ostring, int len)
-{
-        return -EINVAL;
-}
-
-asmlinkage int irix_gettimeofday(struct timeval __user *tv)
-{
-        time_t sec;
-        long nsec, seq;
-        int err;
-
-        if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
-                return -EFAULT;
-
-        do {
-                seq = read_seqbegin(&xtime_lock);
-                sec = xtime.tv_sec;
-                nsec = xtime.tv_nsec;
-        } while (read_seqretry(&xtime_lock, seq));
-
-        err = __put_user(sec, &tv->tv_sec);
-        err |= __put_user((nsec / 1000), &tv->tv_usec);
-
-        return err;
-}
-
-#define IRIX_MAP_AUTOGROW 0x40
-
-asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
-                                     int flags, int fd, off_t offset)
-{
-        struct file *file = NULL;
-        unsigned long retval;
-
-        if (!(flags & MAP_ANONYMOUS)) {
-                if (!(file = fget(fd)))
-                        return -EBADF;
-
-                /* Ok, bad taste hack follows, try to think in something else
-                 * when reading this.  */
-                if (flags & IRIX_MAP_AUTOGROW) {
-                        unsigned long old_pos;
-                        long max_size = offset + len;
-
-                        if (max_size > file->f_path.dentry->d_inode->i_size) {
-                                old_pos = sys_lseek(fd, max_size - 1, 0);
-                                sys_write(fd, (void __user *) "", 1);
-                                sys_lseek(fd, old_pos, 0);
-                        }
-                }
-        }
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
-        down_write(&current->mm->mmap_sem);
-        retval = do_mmap(file, addr, len, prot, flags, offset);
-        up_write(&current->mm->mmap_sem);
-        if (file)
-                fput(file);
-
-        return retval;
-}
-
-asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
-{
-        printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
-               current->comm, current->pid, addr, len, behavior);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_pagelock(char __user *addr, int len, int op)
-{
-        printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
-               current->comm, current->pid, addr, len, op);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_quotactl(struct pt_regs *regs)
-{
-        printk("[%s:%d] Wheee.. irix_quotactl()\n",
-               current->comm, current->pid);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
-{
-        int error;
-
-#ifdef DEBUG_PROCGRPS
-        printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
-               pid, pgrp);
-#endif
-        if(!pid)
-                pid = task_pid_vnr(current);
-
-        /* Wheee, weird sysv thing... */
-        if ((pgrp == 0) && (pid == task_pid_vnr(current)))
-                error = sys_setsid();
-        else
-                error = sys_setpgid(pid, pgrp);
-
-#ifdef DEBUG_PROCGRPS
-        printk("error = %d\n", error);
-#endif
-
-        return error;
-}
-
-asmlinkage int irix_systeminfo(int cmd, char __user *buf, int cnt)
-{
-        printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
-               current->comm, current->pid, cmd, buf, cnt);
-
-        return -EINVAL;
-}
-
-struct iuname {
-        char sysname[257], nodename[257], release[257];
-        char version[257], machine[257];
-        char m_type[257], base_rel[257];
-        char _unused0[257], _unused1[257], _unused2[257];
-        char _unused3[257], _unused4[257], _unused5[257];
-};
-
-asmlinkage int irix_uname(struct iuname __user *buf)
-{
-        down_read(&uts_sem);
-        if (copy_from_user(utsname()->sysname, buf->sysname, 65)
-            || copy_from_user(utsname()->nodename, buf->nodename, 65)
-            || copy_from_user(utsname()->release, buf->release, 65)
-            || copy_from_user(utsname()->version, buf->version, 65)
-            || copy_from_user(utsname()->machine, buf->machine, 65)) {
-                return -EFAULT;
-        }
-        up_read(&uts_sem);
-
-        return 1;
-}
-
-#undef DEBUG_XSTAT
-
-static int irix_xstat32_xlate(struct kstat *stat, void __user *ubuf)
-{
-        struct xstat32 {
-                u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
-                u32 st_rdev, st_pad2[2], st_size, st_pad3;
-                u32 st_atime0, st_atime1;
-                u32 st_mtime0, st_mtime1;
-                u32 st_ctime0, st_ctime1;
-                u32 st_blksize, st_blocks;
-                char st_fstype[16];
-                u32 st_pad4[8];
-        } ub;
-
-        if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
-                return -EOVERFLOW;
-        ub.st_dev     = sysv_encode_dev(stat->dev);
-        ub.st_ino     = stat->ino;
-        ub.st_mode    = stat->mode;
-        ub.st_nlink   = stat->nlink;
-        SET_UID(ub.st_uid, stat->uid);
-        SET_GID(ub.st_gid, stat->gid);
-        ub.st_rdev    = sysv_encode_dev(stat->rdev);
-#if BITS_PER_LONG == 32
-        if (stat->size > MAX_NON_LFS)
-                return -EOVERFLOW;
-#endif
-        ub.st_size    = stat->size;
-        ub.st_atime0  = stat->atime.tv_sec;
-        ub.st_atime1  = stat->atime.tv_nsec;
-        ub.st_mtime0  = stat->mtime.tv_sec;
-        ub.st_mtime1  = stat->atime.tv_nsec;
-        ub.st_ctime0  = stat->ctime.tv_sec;
-        ub.st_ctime1  = stat->atime.tv_nsec;
-        ub.st_blksize = stat->blksize;
-        ub.st_blocks  = stat->blocks;
-        strcpy(ub.st_fstype, "efs");
-
-        return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
-}
-
-static int irix_xstat64_xlate(struct kstat *stat, void __user *ubuf)
-{
-        struct xstat64 {
-                u32 st_dev; s32 st_pad1[3];
-                unsigned long long st_ino;
-                u32 st_mode;
-                u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
-                s32 st_pad2[2];
-                long long st_size;
-                s32 st_pad3;
-                struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
-                s32 st_blksize;
-                long long  st_blocks;
-                char st_fstype[16];
-                s32 st_pad4[8];
-        } ks;
-
-        if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
-                return -EOVERFLOW;
-
-        ks.st_dev = sysv_encode_dev(stat->dev);
-        ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
-        ks.st_ino = (unsigned long long) stat->ino;
-        ks.st_mode = (u32) stat->mode;
-        ks.st_nlink = (u32) stat->nlink;
-        ks.st_uid = (s32) stat->uid;
-        ks.st_gid = (s32) stat->gid;
-        ks.st_rdev = sysv_encode_dev(stat->rdev);
-        ks.st_pad2[0] = ks.st_pad2[1] = 0;
-        ks.st_size = (long long) stat->size;
-        ks.st_pad3 = 0;
-
-        /* XXX hackety hack... */
-        ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
-        ks.st_atime.tv_nsec = stat->atime.tv_nsec;
-        ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
-        ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
-        ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
-        ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
-
-        ks.st_blksize = (s32) stat->blksize;
-        ks.st_blocks = (long long) stat->blocks;
-        memset(ks.st_fstype, 0, 16);
-        ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
-        ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
-
-        /* Now write it all back. */
-        return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
-}
-
-asmlinkage int irix_xstat(int version, char __user *filename, struct stat __user *statbuf)
-{
-        int retval;
-        struct kstat stat;
-
-#ifdef DEBUG_XSTAT
-        printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
-               current->comm, current->pid, version, filename, statbuf);
-#endif
-
-        retval = vfs_stat(filename, &stat);
-        if (!retval) {
-                switch(version) {
-                        case 2:
-                                retval = irix_xstat32_xlate(&stat, statbuf);
-                                break;
-                        case 3:
-                                retval = irix_xstat64_xlate(&stat, statbuf);
-                                break;
-                        default:
-                                retval = -EINVAL;
-                }
-        }
-        return retval;
-}
-
-asmlinkage int irix_lxstat(int version, char __user *filename, struct stat __user *statbuf)
-{
-        int error;
-        struct kstat stat;
-
-#ifdef DEBUG_XSTAT
-        printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
-               current->comm, current->pid, version, filename, statbuf);
-#endif
-
-        error = vfs_lstat(filename, &stat);
-
-        if (!error) {
-                switch (version) {
-                        case 2:
-                                error = irix_xstat32_xlate(&stat, statbuf);
-                                break;
-                        case 3:
-                                error = irix_xstat64_xlate(&stat, statbuf);
-                                break;
-                        default:
-                                error = -EINVAL;
-                }
-        }
-        return error;
-}
-
-asmlinkage int irix_fxstat(int version, int fd, struct stat __user *statbuf)
-{
-        int error;
-        struct kstat stat;
-
-#ifdef DEBUG_XSTAT
-        printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
-               current->comm, current->pid, version, fd, statbuf);
-#endif
-
-        error = vfs_fstat(fd, &stat);
-        if (!error) {
-                switch (version) {
-                        case 2:
-                                error = irix_xstat32_xlate(&stat, statbuf);
-                                break;
-                        case 3:
-                                error = irix_xstat64_xlate(&stat, statbuf);
-                                break;
-                        default:
-                                error = -EINVAL;
-                }
-        }
-        return error;
-}
-
-asmlinkage int irix_xmknod(int ver, char __user *filename, int mode, unsigned dev)
-{
-        int retval;
-        printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
-               current->comm, current->pid, ver, filename, mode, dev);
-
-        switch(ver) {
-        case 2:
-                /* shouldn't we convert here as well as on stat()? */
-                retval = sys_mknod(filename, mode, dev);
-                break;
-
-        default:
-                retval = -EINVAL;
-                break;
-        };
-
-        return retval;
-}
-
-asmlinkage int irix_swapctl(int cmd, char __user *arg)
-{
-        printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
-               current->comm, current->pid, cmd, arg);
-
-        return -EINVAL;
-}
-
-struct irix_statvfs {
-        u32 f_bsize; u32 f_frsize; u32 f_blocks;
-        u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
-        u32 f_fsid; char f_basetype[16];
-        u32 f_flag; u32 f_namemax;
-        char    f_fstr[32]; u32 f_filler[16];
-};
-
-asmlinkage int irix_statvfs(char __user *fname, struct irix_statvfs __user *buf)
-{
-        struct nameidata nd;
-        struct kstatfs kbuf;
-        int error, i;
-
-        printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
-               current->comm, current->pid, fname, buf);
-        if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs)))
-                return -EFAULT;
-
-        error = user_path_walk(fname, &nd);
-        if (error)
-                goto out;
-        error = vfs_statfs(nd.path.dentry, &kbuf);
-        if (error)
-                goto dput_and_out;
-
-        error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
-        error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-        error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
-        error |= __put_user(kbuf.f_files, &buf->f_files);
-        error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-        error |= __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
-#ifdef __MIPSEB__
-        error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
-#else
-        error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
-#endif
-        for (i = 0; i < 16; i++)
-                error |= __put_user(0, &buf->f_basetype[i]);
-        error |= __put_user(0, &buf->f_flag);
-        error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
-        for (i = 0; i < 32; i++)
-                error |= __put_user(0, &buf->f_fstr[i]);
-
-dput_and_out:
-        path_put(&nd.path);
-out:
-        return error;
-}
-
-asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs __user *buf)
-{
-        struct kstatfs kbuf;
-        struct file *file;
-        int error, i;
-
-        printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
-               current->comm, current->pid, fd, buf);
-
-        if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs)))
-                return -EFAULT;
-
-        if (!(file = fget(fd))) {
-                error = -EBADF;
-                goto out;
-        }
-        error = vfs_statfs(file->f_path.dentry, &kbuf);
-        if (error)
-                goto out_f;
-
-        error = __put_user(kbuf.f_bsize, &buf->f_bsize);
-        error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-        error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
-        error |= __put_user(kbuf.f_files, &buf->f_files);
-        error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-        error |= __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
-#ifdef __MIPSEB__
-        error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
-#else
-        error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
-#endif
-        for(i = 0; i < 16; i++)
-                error |= __put_user(0, &buf->f_basetype[i]);
-        error |= __put_user(0, &buf->f_flag);
-        error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
-        error |= __clear_user(&buf->f_fstr, sizeof(buf->f_fstr)) ? -EFAULT : 0;
-
-out_f:
-        fput(file);
-out:
-        return error;
-}
-
-asmlinkage int irix_priocntl(struct pt_regs *regs)
-{
-        printk("[%s:%d] Wheee.. irix_priocntl()\n",
-               current->comm, current->pid);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
-{
-        printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
-               current->comm, current->pid, pid, sig, code, val);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_truncate64(char __user *name, int pad, int size1, int size2)
-{
-        int retval;
-
-        if (size1) {
-                retval = -EINVAL;
-                goto out;
-        }
-        retval = sys_truncate(name, size2);
-
-out:
-        return retval;
-}
-
-asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
-{
-        int retval;
-
-        if (size1) {
-                retval = -EINVAL;
-                goto out;
-        }
-        retval = sys_ftruncate(fd, size2);
-
-out:
-        return retval;
-}
-
-asmlinkage int irix_mmap64(struct pt_regs *regs)
-{
-        int len, prot, flags, fd, off1, off2, error, base = 0;
-        unsigned long addr, pgoff, *sp;
-        struct file *file = NULL;
-        int err;
-
-        if (regs->regs[2] == 1000)
-                base = 1;
-        sp = (unsigned long *) (regs->regs[29] + 16);
-        addr = regs->regs[base + 4];
-        len = regs->regs[base + 5];
-        prot = regs->regs[base + 6];
-        if (!base) {
-                flags = regs->regs[base + 7];
-                if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long))))
-                        return -EFAULT;
-                fd = sp[0];
-                err = __get_user(off1, &sp[1]);
-                err |= __get_user(off2, &sp[2]);
-        } else {
-                if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long))))
-                        return -EFAULT;
-                err = __get_user(flags, &sp[0]);
-                err |= __get_user(fd, &sp[1]);
-                err |= __get_user(off1, &sp[2]);
-                err |= __get_user(off2, &sp[3]);
-        }
-
-        if (err)
-                return err;
-
-        if (off1 & PAGE_MASK)
-                return -EOVERFLOW;
-
-        pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
-
-        if (!(flags & MAP_ANONYMOUS)) {
-                if (!(file = fget(fd)))
-                        return -EBADF;
-
-                /* Ok, bad taste hack follows, try to think in something else
-                   when reading this */
-                if (flags & IRIX_MAP_AUTOGROW) {
-                        unsigned long old_pos;
-                        long max_size = off2 + len;
-
-                        if (max_size > file->f_path.dentry->d_inode->i_size) {
-                                old_pos = sys_lseek(fd, max_size - 1, 0);
-                                sys_write(fd, (void __user *) "", 1);
-                                sys_lseek(fd, old_pos, 0);
-                        }
-                }
-        }
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-        up_write(&current->mm->mmap_sem);
-
-        if (file)
-                fput(file);
-
-        return error;
-}
-
-asmlinkage int irix_dmi(struct pt_regs *regs)
-{
-        printk("[%s:%d] Wheee.. irix_dmi()\n",
-               current->comm, current->pid);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_pread(int fd, char __user *buf, int cnt, int off64,
-                          int off1, int off2)
-{
-        printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
-               current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_pwrite(int fd, char __user *buf, int cnt, int off64,
-                           int off1, int off2)
-{
-        printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
-               current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
-
-        return -EINVAL;
-}
-
-asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
-                                unsigned long arg2, unsigned long arg3,
-                                unsigned long arg4, unsigned long arg5)
-{
-        printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
-               "%08lx,%08lx)\n",
-               current->comm, current->pid, cmd, arg0, arg1, arg2,
-               arg3, arg4, arg5);
-
-        return -EINVAL;
-}
-
-struct irix_statvfs64 {
-        u32  f_bsize; u32 f_frsize;
-        u64  f_blocks; u64 f_bfree; u64 f_bavail;
-        u64  f_files; u64 f_ffree; u64 f_favail;
-        u32  f_fsid;
-        char f_basetype[16];
-        u32  f_flag; u32 f_namemax;
-        char f_fstr[32];
-        u32  f_filler[16];
-};
-
-asmlinkage int irix_statvfs64(char __user *fname, struct irix_statvfs64 __user *buf)
-{
-        struct nameidata nd;
-        struct kstatfs kbuf;
-        int error, i;
-
-        printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
-               current->comm, current->pid, fname, buf);
-        if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
-                error = -EFAULT;
-                goto out;
-        }
-
-        error = user_path_walk(fname, &nd);
-        if (error)
-                goto out;
-        error = vfs_statfs(nd.path.dentry, &kbuf);
-        if (error)
-                goto dput_and_out;
-
-        error = __put_user(kbuf.f_bsize, &buf->f_bsize);
-        error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-        error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
-        error |= __put_user(kbuf.f_files, &buf->f_files);
-        error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-        error |= __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
-#ifdef __MIPSEB__
-        error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
-#else
-        error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
-#endif
-        for(i = 0; i < 16; i++)
-                error |= __put_user(0, &buf->f_basetype[i]);
-        error |= __put_user(0, &buf->f_flag);
-        error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
-        for(i = 0; i < 32; i++)
-                error |= __put_user(0, &buf->f_fstr[i]);
-
-dput_and_out:
-        path_put(&nd.path);
-out:
-        return error;
-}
-
-asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs __user *buf)
-{
-        struct kstatfs kbuf;
-        struct file *file;
-        int error, i;
-
-        printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
-               current->comm, current->pid, fd, buf);
-
-        if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
-                error = -EFAULT;
-                goto out;
-        }
-        if (!(file = fget(fd))) {
-                error = -EBADF;
-                goto out;
-        }
-        error = vfs_statfs(file->f_path.dentry, &kbuf);
-        if (error)
-                goto out_f;
-
-        error = __put_user(kbuf.f_bsize, &buf->f_bsize);
-        error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-        error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-        error |= __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
-        error |= __put_user(kbuf.f_files, &buf->f_files);
-        error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-        error |= __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
-#ifdef __MIPSEB__
-        error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
-#else
-        error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
-#endif
-        for(i = 0; i < 16; i++)
-                error |= __put_user(0, &buf->f_basetype[i]);
-        error |= __put_user(0, &buf->f_flag);
-        error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
-        error |= __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i])) ? -EFAULT : 0;
-
-out_f:
-        fput(file);
-out:
-        return error;
-}
-
-asmlinkage int irix_getmountid(char __user *fname, unsigned long __user *midbuf)
-{
-        int err;
-
-        printk("[%s:%d] irix_getmountid(%s, %p)\n",
-               current->comm, current->pid, fname, midbuf);
-        if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
-                return -EFAULT;
-
-        /*
-         * The idea with this system call is that when trying to determine
-         * 'pwd' and it's a toss-up for some reason, userland can use the
-         * fsid of the filesystem to try and make the right decision, but
-         * we don't have this so for now. XXX
-         */
-        err = __put_user(0, &midbuf[0]);
-        err |= __put_user(0, &midbuf[1]);
-        err |= __put_user(0, &midbuf[2]);
-        err |= __put_user(0, &midbuf[3]);
-
-        return err;
-}
-
-asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
-                           unsigned long arg, unsigned long sp, int slen)
-{
-        printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
-               current->comm, current->pid, entry, mask, arg, sp, slen);
-
-        return -EINVAL;
-}
-
-#undef DEBUG_GETDENTS
-
-struct irix_dirent32 {
-        u32  d_ino;
-        u32  d_off;
-        unsigned short  d_reclen;
-        char d_name[1];
-};
-
-struct irix_dirent32_callback {
-        struct irix_dirent32 __user *current_dir;
-        struct irix_dirent32 __user *previous;
-        int count;
-        int error;
-};
-
-#define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
-#define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
-
-static int irix_filldir32(void *__buf, const char *name,
-        int namlen, loff_t offset, u64 ino, unsigned int d_type)
-{
-        struct irix_dirent32 __user *dirent;
-        struct irix_dirent32_callback *buf = __buf;
-        unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
-        int err = 0;
-        u32 d_ino;
-
-#ifdef DEBUG_GETDENTS
-        printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
-               reclen, namlen, buf->count);
-#endif
-        buf->error = -EINVAL;   /* only used if we fail.. */
-        if (reclen > buf->count)
-                return -EINVAL;
-        d_ino = ino;
-        if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
-                return -EOVERFLOW;
-        dirent = buf->previous;
-        if (dirent)
-                err = __put_user(offset, &dirent->d_off);
-        dirent = buf->current_dir;
-        err |= __put_user(dirent, &buf->previous);
-        err |= __put_user(d_ino, &dirent->d_ino);
-        err |= __put_user(reclen, &dirent->d_reclen);
-        err |= copy_to_user((char __user *)dirent->d_name, name, namlen) ? -EFAULT : 0;
-        err |= __put_user(0, &dirent->d_name[namlen]);
-        dirent = (struct irix_dirent32 __user *) ((char __user *) dirent + reclen);
-
-        buf->current_dir = dirent;
-        buf->count -= reclen;
-
-        return err;
-}
-
-asmlinkage int irix_ngetdents(unsigned int fd, void __user * dirent,
-        unsigned int count, int __user *eob)
-{
-        struct file *file;
-        struct irix_dirent32 __user *lastdirent;
-        struct irix_dirent32_callback buf;
-        int error;
-
-#ifdef DEBUG_GETDENTS
-        printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
-               current->pid, fd, dirent, count, eob);
-#endif
-        error = -EBADF;
-        file = fget(fd);
-        if (!file)
-                goto out;
-
-        buf.current_dir = (struct irix_dirent32 __user *) dirent;
-        buf.previous = NULL;
-        buf.count = count;
-        buf.error = 0;
-
-        error = vfs_readdir(file, irix_filldir32, &buf);
-        if (error < 0)
-                goto out_putf;
-
-        error = buf.error;
-        lastdirent = buf.previous;
-        if (lastdirent) {
-                put_user(file->f_pos, &lastdirent->d_off);
-                error = count - buf.count;
-        }
-
-        if (put_user(0, eob) < 0) {
-                error = -EFAULT;
-                goto out_putf;
-        }
-
-#ifdef DEBUG_GETDENTS
-        printk("eob=%d returning %d\n", *eob, count - buf.count);
-#endif
-        error = count - buf.count;
-
-out_putf:
-        fput(file);
-out:
-        return error;
-}
-
-struct irix_dirent64 {
-        u64            d_ino;
-        u64            d_off;
-        unsigned short d_reclen;
-        char           d_name[1];
-};
-
-struct irix_dirent64_callback {
-        struct irix_dirent64 __user *curr;
-        struct irix_dirent64 __user *previous;
-        int count;
-        int error;
-};
-
-#define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
-#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
-
-static int irix_filldir64(void *__buf, const char *name,
-        int namlen, loff_t offset, u64 ino, unsigned int d_type)
-{
-        struct irix_dirent64 __user *dirent;
-        struct irix_dirent64_callback * buf = __buf;
-        unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
-        int err = 0;
-
-        if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
-                return -EFAULT;
-
-        if (__put_user(-EINVAL, &buf->error))   /* only used if we fail.. */
-                return -EFAULT;
-        if (reclen > buf->count)
-                return -EINVAL;
-        dirent = buf->previous;
-        if (dirent)
-                err = __put_user(offset, &dirent->d_off);
-        dirent = buf->curr;
-        buf->previous = dirent;
-        err |= __put_user(ino, &dirent->d_ino);
-        err |= __put_user(reclen, &dirent->d_reclen);
-        err |= __copy_to_user((char __user *)dirent->d_name, name, namlen)
-               ? -EFAULT : 0;
-        err |= __put_user(0, &dirent->d_name[namlen]);
-
-        dirent = (struct irix_dirent64 __user *) ((char __user *) dirent + reclen);
-
-        buf->curr = dirent;
-        buf->count -= reclen;
-
-        return err;
-}
-
-asmlinkage int irix_getdents64(int fd, void __user *dirent, int cnt)
-{
-        struct file *file;
-        struct irix_dirent64 __user *lastdirent;
-        struct irix_dirent64_callback buf;
-        int error;
-
-#ifdef DEBUG_GETDENTS
-        printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
-               current->pid, fd, dirent, cnt);
-#endif
-        error = -EBADF;
-        if (!(file = fget(fd)))
-                goto out;
-
-        error = -EFAULT;
-        if (!access_ok(VERIFY_WRITE, dirent, cnt))
-                goto out_f;
-
-        error = -EINVAL;
-        if (cnt < (sizeof(struct irix_dirent64) + 255))
-                goto out_f;
-
-        buf.curr = (struct irix_dirent64 __user *) dirent;
-        buf.previous = NULL;
-        buf.count = cnt;
-        buf.error = 0;
-        error = vfs_readdir(file, irix_filldir64, &buf);
-        if (error < 0)
-                goto out_f;
-        lastdirent = buf.previous;
-        if (!lastdirent) {
-                error = buf.error;
-                goto out_f;
-        }
-        if (put_user(file->f_pos, &lastdirent->d_off))
-                return -EFAULT;
-#ifdef DEBUG_GETDENTS
-        printk("returning %d\n", cnt - buf.count);
-#endif
-        error = cnt - buf.count;
-
-out_f:
-        fput(file);
-out:
-        return error;
-}
-
-asmlinkage int irix_ngetdents64(int fd, void __user *dirent, int cnt, int *eob)
-{
-        struct file *file;
-        struct irix_dirent64 __user *lastdirent;
-        struct irix_dirent64_callback buf;
-        int error;
-
-#ifdef DEBUG_GETDENTS
-        printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
-               current->pid, fd, dirent, cnt);
-#endif
-        error = -EBADF;
-        if (!(file = fget(fd)))
-                goto out;
-
-        error = -EFAULT;
-        if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
-            !access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
-                goto out_f;
-
-        error = -EINVAL;
-        if (cnt < (sizeof(struct irix_dirent64) + 255))
-                goto out_f;
-
-        *eob = 0;
-        buf.curr = (struct irix_dirent64 __user *) dirent;
-        buf.previous = NULL;
-        buf.count = cnt;
-        buf.error = 0;
-        error = vfs_readdir(file, irix_filldir64, &buf);
-        if (error < 0)
-                goto out_f;
-        lastdirent = buf.previous;
-        if (!lastdirent) {
-                error = buf.error;
-                goto out_f;
-        }
-        if (put_user(file->f_pos, &lastdirent->d_off))
-                return -EFAULT;
-#ifdef DEBUG_GETDENTS
-        printk("eob=%d returning %d\n", *eob, cnt - buf.count);
-#endif
-        error = cnt - buf.count;
-
-out_f:
-        fput(file);
-out:
-        return error;
-}
-
-asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
-{
-        int retval;
-
-        switch (op) {
-        case 1:
-                /* Reboot */
-                printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        case 2:
-                /* Shutdown */
-                printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        case 4:
-                /* Remount-root */
-                printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        case 8:
-                /* Kill all tasks. */
-                printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        case 256:
-                /* Set magic mushrooms... */
-                printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
-                       current->comm, current->pid, (int) func);
-                retval = -EINVAL;
-                goto out;
-
-        default:
-                printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
-                       current->comm, current->pid, (int) op);
-                retval = -EINVAL;
-                goto out;
-        };
-
-out:
-        return retval;
-}
-
-asmlinkage int irix_utssys(char __user *inbuf, int arg, int type, char __user *outbuf)
-{
-        int retval;
-
-        switch(type) {
-        case 0:
-                /* uname() */
-                retval = irix_uname((struct iuname __user *)inbuf);
-                goto out;
-
-        case 2:
-                /* ustat() */
-                printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        case 3:
-                /* fusers() */
-                printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        default:
-                printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
-                       current->comm, current->pid, (int) type);
-                retval = -EINVAL;
-                goto out;
-        }
-
-out:
-        return retval;
-}
-
-#undef DEBUG_FCNTL
-
-#define IRIX_F_ALLOCSP 10
-
-asmlinkage int irix_fcntl(int fd, int cmd, int arg)
-{
-        int retval;
-
-#ifdef DEBUG_FCNTL
-        printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
-               current->pid, fd, cmd, arg);
-#endif
-        if (cmd == IRIX_F_ALLOCSP){
-                return 0;
-        }
-        retval = sys_fcntl(fd, cmd, arg);
-#ifdef DEBUG_FCNTL
-        printk("%d\n", retval);
-#endif
-        return retval;
-}
-
-asmlinkage int irix_ulimit(int cmd, int arg)
-{
-        int retval;
-
-        switch(cmd) {
-        case 1:
-                printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        case 2:
-                printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        case 3:
-                printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        case 4:
-#if 0
-                printk("[%s:%d] irix_ulimit: Wants to get fd limit.\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-#endif
-                retval = current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
-                goto out;
-
-        case 5:
-                printk("[%s:%d] irix_ulimit: Wants to get txt offset.\n",
-                       current->comm, current->pid);
-                retval = -EINVAL;
-                goto out;
-
-        default:
-                printk("[%s:%d] irix_ulimit: Unknown command [%d].\n",
-                       current->comm, current->pid, cmd);
-                retval = -EINVAL;
-                goto out;
-        }
-out:
-        return retval;
-}
-
-asmlinkage int irix_unimp(struct pt_regs *regs)
-{
-        printk("irix_unimp [%s:%d] v0=%d v1=%d a0=%08lx a1=%08lx a2=%08lx "
-               "a3=%08lx\n", current->comm, current->pid,
-               (int) regs->regs[2], (int) regs->regs[3],
-               regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
-
-        return -ENOSYS;
-}
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index f9165d1a17b..b8ea4e9d0d8 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -71,7 +71,6 @@ extern asmlinkage void handle_reserved(void);
 extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
         struct mips_fpu_struct *ctx, int has_fpu);
 
-void (*board_watchpoint_handler)(struct pt_regs *regs);
 void (*board_be_init)(void);
 int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
 void (*board_nmi_handler_setup)(void);
@@ -249,11 +248,11 @@ static void __show_regs(const struct pt_regs *regs)
         /*
          * Saved cp0 registers
          */
-        printk("epc   : %0*lx ", field, regs->cp0_epc);
-        print_symbol("%s ", regs->cp0_epc);
+        printk("epc   : %0*lx %pS\n", field, regs->cp0_epc,
+               (void *) regs->cp0_epc);
         printk("    %s\n", print_tainted());
-        printk("ra    : %0*lx ", field, regs->regs[31]);
-        print_symbol("%s\n", regs->regs[31]);
+        printk("ra    : %0*lx %pS\n", field, regs->regs[31],
+               (void *) regs->regs[31]);
 
         printk("Status: %08x    ", (uint32_t) regs->cp0_status);
 
@@ -892,11 +891,6 @@ asmlinkage void do_mdmx(struct pt_regs *regs)
 
 asmlinkage void do_watch(struct pt_regs *regs)
 {
-        if (board_watchpoint_handler) {
-                (*board_watchpoint_handler)(regs);
-                return;
-        }
-
         /*
          * We use the watch exception where available to detect stack
          * overflows.
diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c
index a56c1502696..d1ac7a25c85 100644
--- a/arch/mips/lasat/interrupt.c
+++ b/arch/mips/lasat/interrupt.c
@@ -22,8 +22,8 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 
-#include <asm/bootinfo.h>
 #include <asm/irq_cpu.h>
+#include <asm/lasat/lasat.h>
 #include <asm/lasat/lasatint.h>
 
 #include <irq.h>
@@ -112,23 +112,18 @@ void __init arch_init_irq(void)
 {
         int i;
 
-        switch (mips_machtype) {
-        case MACH_LASAT_100:
-                lasat_int_status = (void *)LASAT_INT_STATUS_REG_100;
-                lasat_int_mask = (void *)LASAT_INT_MASK_REG_100;
-                lasat_int_mask_shift = LASATINT_MASK_SHIFT_100;
-                get_int_status = get_int_status_100;
-                *lasat_int_mask = 0;
-                break;
-        case MACH_LASAT_200:
+        if (IS_LASAT_200()) {
                 lasat_int_status = (void *)LASAT_INT_STATUS_REG_200;
                 lasat_int_mask = (void *)LASAT_INT_MASK_REG_200;
                 lasat_int_mask_shift = LASATINT_MASK_SHIFT_200;
                 get_int_status = get_int_status_200;
                 *lasat_int_mask &= 0xffff;
-                break;
-        default:
-                panic("arch_init_irq: mips_machtype incorrect");
+        } else {
+                lasat_int_status = (void *)LASAT_INT_STATUS_REG_100;
+                lasat_int_mask = (void *)LASAT_INT_MASK_REG_100;
+                lasat_int_mask_shift = LASATINT_MASK_SHIFT_100;
+                get_int_status = get_int_status_100;
+                *lasat_int_mask = 0;
         }
 
         mips_cpu_irq_init();
diff --git a/arch/mips/lasat/lasat_board.c b/arch/mips/lasat/lasat_board.c
index 31e328b3814..577bb463a87 100644
--- a/arch/mips/lasat/lasat_board.c
+++ b/arch/mips/lasat/lasat_board.c
@@ -24,7 +24,6 @@
 #include <linux/string.h>
 #include <linux/ctype.h>
 #include <linux/mutex.h>
-#include <asm/bootinfo.h>
 #include <asm/addrspace.h>
 #include "at93c.h"
 /* New model description table */
@@ -66,7 +65,7 @@ static void init_flash_sizes(void)
         ls[LASAT_MTD_SERVICE] = 0xC0000;
         ls[LASAT_MTD_NORMAL] = 0x100000;
 
-        if (mips_machtype == MACH_LASAT_100) {
+        if (!IS_LASAT_200()) {
                 lasat_board_info.li_flash_base = 0x1e000000;
 
                 lb[LASAT_MTD_BOOTLOADER] = 0x1e400000;
diff --git a/arch/mips/lasat/prom.c b/arch/mips/lasat/prom.c
index 209edcc26f0..6acc6cb85f0 100644
--- a/arch/mips/lasat/prom.c
+++ b/arch/mips/lasat/prom.c
@@ -86,18 +86,16 @@ void __init prom_init(void)
 
         setup_prom_vectors();
 
-        if (current_cpu_data.cputype == CPU_R5000) {
+        if (IS_LASAT_200()) {
                 printk(KERN_INFO "LASAT 200 board\n");
-                mips_machtype = MACH_LASAT_200;
                 lasat_ndelay_divider = LASAT_200_DIVIDER;
+                at93c = &at93c_defs[1];
         } else {
                 printk(KERN_INFO "LASAT 100 board\n");
-                mips_machtype = MACH_LASAT_100;
                 lasat_ndelay_divider = LASAT_100_DIVIDER;
+                at93c = &at93c_defs[0];
         }
 
-        at93c = &at93c_defs[mips_machtype];
-
         lasat_init_board_info();                /* Read info from EEPROM */
 
         /* Get the command line */
diff --git a/arch/mips/lasat/serial.c b/arch/mips/lasat/serial.c
index 205bd397d75..5bcb6e89ab7 100644
--- a/arch/mips/lasat/serial.c
+++ b/arch/mips/lasat/serial.c
@@ -23,7 +23,6 @@
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
 
-#include <asm/bootinfo.h>
 #include <asm/lasat/lasat.h>
 #include <asm/lasat/serial.h>
 
@@ -47,7 +46,7 @@ static __init int lasat_uart_add(void)
         if (!pdev)
                 return -ENOMEM;
 
-        if (mips_machtype == MACH_LASAT_100) {
+        if (!IS_LASAT_200()) {
                 lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_100);
                 lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_100 * 8 - 1;
                 lasat_serial_res[0].flags = IORESOURCE_MEM;
diff --git a/arch/mips/lasat/setup.c b/arch/mips/lasat/setup.c
index e072da4ff3b..dbd3163a85c 100644
--- a/arch/mips/lasat/setup.c
+++ b/arch/mips/lasat/setup.c
@@ -127,9 +127,11 @@ void __init plat_time_init(void)
 void __init plat_mem_setup(void)
 {
         int i;
-        lasat_misc  = &lasat_misc_info[mips_machtype];
+        int lasat_type = IS_LASAT_200() ? 1 : 0;
+
+        lasat_misc  = &lasat_misc_info[lasat_type];
 #ifdef CONFIG_PICVUE
-        picvue = &pvc_defs[mips_machtype];
+        picvue = &pvc_defs[lasat_type];
 #endif
 
         /* Set up panic notifier */
@@ -140,7 +142,7 @@ void __init plat_mem_setup(void)
         lasat_reboot_setup();
 
 #ifdef CONFIG_DS1603
-        ds1603 = &ds_defs[mips_machtype];
+        ds1603 = &ds_defs[lasat_type];
 #endif
 
 #ifdef DYNAMIC_SERIAL_INIT
diff --git a/arch/mips/mips-boards/atlas/Makefile b/arch/mips/mips-boards/atlas/Makefile
deleted file mode 100644
index f71c2dd1041..00000000000
--- a/arch/mips/mips-boards/atlas/Makefile
+++ /dev/null
@@ -1,22 +0,0 @@
-#
-# Carsten Langgaard, carstenl@mips.com
-# Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
-#
-# This program is free software; you can distribute it and/or modify it
-# under the terms of the GNU General Public License (Version 2) as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
-#
-
-obj-y                   := atlas_int.o atlas_setup.o
-obj-$(CONFIG_KGDB)      += atlas_gdb.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mips-boards/atlas/atlas_gdb.c b/arch/mips/mips-boards/atlas/atlas_gdb.c
deleted file mode 100644
index 00c98cff62d..00000000000
--- a/arch/mips/mips-boards/atlas/atlas_gdb.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * This is the interface to the remote debugger stub.
- */
-#include <asm/io.h>
-#include <asm/mips-boards/atlas.h>
-#include <asm/mips-boards/saa9730_uart.h>
-
-#define INB(a)     inb((unsigned long)a)
-#define OUTB(x, a)  outb(x, (unsigned long)a)
-
-/*
- * This is the interface to the remote debugger stub
- * if the Philips part is used for the debug port,
- * called from the platform setup code.
- */
-void *saa9730_base = (void *)ATLAS_SAA9730_REG;
-
-static int saa9730_kgdb_active = 0;
-
-#define SAA9730_BAUDCLOCK(baud) (((ATLAS_SAA9730_BAUDCLOCK/(baud))/16)-1)
-
-int saa9730_kgdb_hook(int speed)
-{
-        int baudclock;
-        t_uart_saa9730_regmap *kgdb_uart = (t_uart_saa9730_regmap *)(saa9730_base + SAA9730_UART_REGS_ADDR);
-
-        /*
-         * Clear all interrupts
-         */
-        (void) INB(&kgdb_uart->Lsr);
-        (void) INB(&kgdb_uart->Msr);
-        (void) INB(&kgdb_uart->Thr_Rbr);
-        (void) INB(&kgdb_uart->Iir_Fcr);
-
-        /*
-         * Now, initialize the UART
-         */
-        /* 8 data bits, one stop bit, no parity */
-        OUTB(SAA9730_LCR_DATA8, &kgdb_uart->Lcr);
-
-        baudclock = SAA9730_BAUDCLOCK(speed);
-
-        OUTB((baudclock >> 16) & 0xff, &kgdb_uart->BaudDivMsb);
-        OUTB( baudclock        & 0xff, &kgdb_uart->BaudDivLsb);
-
-        /* Set RTS/DTR active */
-        OUTB(SAA9730_MCR_DTR | SAA9730_MCR_RTS, &kgdb_uart->Mcr);
-        saa9730_kgdb_active = 1;
-
-        return speed;
-}
-
-int saa9730_putDebugChar(char c)
-{
-        t_uart_saa9730_regmap *kgdb_uart = (t_uart_saa9730_regmap *)(saa9730_base + SAA9730_UART_REGS_ADDR);
-
-        if (!saa9730_kgdb_active) {     /* need to init device first */
-                return 0;
-        }
-
-        while (!(INB(&kgdb_uart->Lsr) & SAA9730_LSR_THRE))
-                ;
-        OUTB(c, &kgdb_uart->Thr_Rbr);
-
-        return 1;
-}
-
-char saa9730_getDebugChar(void)
-{
-        t_uart_saa9730_regmap *kgdb_uart = (t_uart_saa9730_regmap *)(saa9730_base + SAA9730_UART_REGS_ADDR);
-        char c;
-
-        if (!saa9730_kgdb_active) {     /* need to init device first */
-                return 0;
-        }
-        while (!(INB(&kgdb_uart->Lsr) & SAA9730_LSR_DR))
-                ;
-
-        c = INB(&kgdb_uart->Thr_Rbr);
-        return(c);
-}
diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c
deleted file mode 100644
index 6fb29c3ff62..00000000000
--- a/arch/mips/mips-boards/atlas/atlas_int.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*
- * Copyright (C) 1999, 2000, 2006  MIPS Technologies, Inc.
- *      All rights reserved.
- *      Authors: Carsten Langgaard <carstenl@mips.com>
- *               Maciej W. Rozycki <macro@mips.com>
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- *
- * Routines for generic manipulation of the interrupts found on the MIPS
- * Atlas board.
- *
- */
-#include <linux/compiler.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/kernel.h>
-
-#include <asm/gdb-stub.h>
-#include <asm/io.h>
-#include <asm/irq_cpu.h>
-#include <asm/msc01_ic.h>
-
-#include <asm/mips-boards/atlas.h>
-#include <asm/mips-boards/atlasint.h>
-#include <asm/mips-boards/generic.h>
-
-static struct atlas_ictrl_regs *atlas_hw0_icregs;
-
-#if 0
-#define DEBUG_INT(x...) printk(x)
-#else
-#define DEBUG_INT(x...)
-#endif
-
-void disable_atlas_irq(unsigned int irq_nr)
-{
-        atlas_hw0_icregs->intrsten = 1 << (irq_nr - ATLAS_INT_BASE);
-        iob();
-}
-
-void enable_atlas_irq(unsigned int irq_nr)
-{
-        atlas_hw0_icregs->intseten = 1 << (irq_nr - ATLAS_INT_BASE);
-        iob();
-}
-
-static void end_atlas_irq(unsigned int irq)
-{
-        if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-                enable_atlas_irq(irq);
-}
-
-static struct irq_chip atlas_irq_type = {
-        .name = "Atlas",
-        .ack = disable_atlas_irq,
-        .mask = disable_atlas_irq,
-        .mask_ack = disable_atlas_irq,
-        .unmask = enable_atlas_irq,
-        .eoi = enable_atlas_irq,
-        .end = end_atlas_irq,
-};
-
-static inline int ls1bit32(unsigned int x)
-{
-        int b = 31, s;
-
-        s = 16; if (x << 16 == 0) s = 0; b -= s; x <<= s;
-        s =  8; if (x <<  8 == 0) s = 0; b -= s; x <<= s;
-        s =  4; if (x <<  4 == 0) s = 0; b -= s; x <<= s;
-        s =  2; if (x <<  2 == 0) s = 0; b -= s; x <<= s;
-        s =  1; if (x <<  1 == 0) s = 0; b -= s;
-
-        return b;
-}
-
-static inline void atlas_hw0_irqdispatch(void)
-{
-        unsigned long int_status;
-        int irq;
-
-        int_status = atlas_hw0_icregs->intstatus;
-
-        /* if int_status == 0, then the interrupt has already been cleared */
-        if (unlikely(int_status == 0))
-                return;
-
-        irq = ATLAS_INT_BASE + ls1bit32(int_status);
-
-        DEBUG_INT("atlas_hw0_irqdispatch: irq=%d\n", irq);
-
-        do_IRQ(irq);
-}
-
-static inline int clz(unsigned long x)
-{
-        __asm__(
-        "       .set    push                                    \n"
-        "       .set    mips32                                  \n"
-        "       clz     %0, %1                                  \n"
-        "       .set    pop                                     \n"
-        : "=r" (x)
-        : "r" (x));
-
-        return x;
-}
-
-/*
- * Version of ffs that only looks at bits 12..15.
- */
-static inline unsigned int irq_ffs(unsigned int pending)
-{
-#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64)
-        return -clz(pending) + 31 - CAUSEB_IP;
-#else
-        unsigned int a0 = 7;
-        unsigned int t0;
-
-        t0 = s0 & 0xf000;
-        t0 = t0 < 1;
-        t0 = t0 << 2;
-        a0 = a0 - t0;
-        s0 = s0 << t0;
-
-        t0 = s0 & 0xc000;
-        t0 = t0 < 1;
-        t0 = t0 << 1;
-        a0 = a0 - t0;
-        s0 = s0 << t0;
-
-        t0 = s0 & 0x8000;
-        t0 = t0 < 1;
-        //t0 = t0 << 2;
-        a0 = a0 - t0;
-        //s0 = s0 << t0;
-
-        return a0;
-#endif
-}
-
-/*
- * IRQs on the Atlas board look basically like (all external interrupt
- * sources are combined together on hardware interrupt 0 (MIPS IRQ 2)):
- *
- *      MIPS IRQ        Source
- *      --------        ------
- *             0        Software 0 (reschedule IPI on MT)
- *             1        Software 1 (remote call IPI on MT)
- *             2        Combined Atlas hardware interrupt (hw0)
- *             3        Hardware (ignored)
- *             4        Hardware (ignored)
- *             5        Hardware (ignored)
- *             6        Hardware (ignored)
- *             7        R4k timer (what we use)
- *
- * We handle the IRQ according to _our_ priority which is:
- *
- * Highest ----     R4k Timer
- * Lowest  ----     Software 0
- *
- * then we just return, if multiple IRQs are pending then we will just take
- * another exception, big deal.
- */
-asmlinkage void plat_irq_dispatch(void)
-{
-        unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-        int irq;
-
-        irq = irq_ffs(pending);
-
-        if (irq == MIPSCPU_INT_ATLAS)
-                atlas_hw0_irqdispatch();
-        else if (irq >= 0)
-                do_IRQ(MIPS_CPU_IRQ_BASE + irq);
-        else
-                spurious_interrupt();
-}
-
-static inline void init_atlas_irqs(int base)
-{
-        int i;
-
-        atlas_hw0_icregs = (struct atlas_ictrl_regs *)
-                           ioremap(ATLAS_ICTRL_REGS_BASE,
-                                   sizeof(struct atlas_ictrl_regs *));
-
-        /*
-         * Mask out all interrupt by writing "1" to all bit position in
-         * the interrupt reset reg.
-         */
-        atlas_hw0_icregs->intrsten = 0xffffffff;
-
-        for (i = ATLAS_INT_BASE; i <= ATLAS_INT_END; i++)
-                set_irq_chip_and_handler(i, &atlas_irq_type, handle_level_irq);
-}
-
-static struct irqaction atlasirq = {
-        .handler = no_action,
-        .name = "Atlas cascade"
-};
-
-msc_irqmap_t __initdata msc_irqmap[] = {
-        {MSC01C_INT_TMR,                MSC01_IRQ_EDGE, 0},
-        {MSC01C_INT_PCI,                MSC01_IRQ_LEVEL, 0},
-};
-int __initdata msc_nr_irqs = ARRAY_SIZE(msc_irqmap);
-
-msc_irqmap_t __initdata msc_eicirqmap[] = {
-        {MSC01E_INT_SW0,                MSC01_IRQ_LEVEL, 0},
-        {MSC01E_INT_SW1,                MSC01_IRQ_LEVEL, 0},
-        {MSC01E_INT_ATLAS,              MSC01_IRQ_LEVEL, 0},
-        {MSC01E_INT_TMR,                MSC01_IRQ_EDGE, 0},
-        {MSC01E_INT_PCI,                MSC01_IRQ_LEVEL, 0},
-        {MSC01E_INT_PERFCTR,            MSC01_IRQ_LEVEL, 0},
-        {MSC01E_INT_CPUCTR,             MSC01_IRQ_LEVEL, 0}
-};
-int __initdata msc_nr_eicirqs = ARRAY_SIZE(msc_eicirqmap);
-
-void __init arch_init_irq(void)
-{
-        init_atlas_irqs(ATLAS_INT_BASE);
-
-        if (!cpu_has_veic)
-                mips_cpu_irq_init();
-
-        switch(mips_revision_corid) {
-        case MIPS_REVISION_CORID_CORE_MSC:
-        case MIPS_REVISION_CORID_CORE_FPGA2:
-        case MIPS_REVISION_CORID_CORE_FPGA3:
-        case MIPS_REVISION_CORID_CORE_FPGA4:
-        case MIPS_REVISION_CORID_CORE_24K:
-        case MIPS_REVISION_CORID_CORE_EMUL_MSC:
-                if (cpu_has_veic)
-                        init_msc_irqs(MSC01E_INT_BASE, MSC01E_INT_BASE,
-                                      msc_eicirqmap, msc_nr_eicirqs);
-                else
-                        init_msc_irqs(MSC01E_INT_BASE, MSC01C_INT_BASE,
-                                      msc_irqmap, msc_nr_irqs);
-        }
-
-        if (cpu_has_veic) {
-                set_vi_handler(MSC01E_INT_ATLAS, atlas_hw0_irqdispatch);
-                setup_irq(MSC01E_INT_BASE + MSC01E_INT_ATLAS, &atlasirq);
-        } else if (cpu_has_vint) {
-                set_vi_handler(MIPSCPU_INT_ATLAS, atlas_hw0_irqdispatch);
-#ifdef CONFIG_MIPS_MT_SMTC
-                setup_irq_smtc(MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS,
-                               &atlasirq, (0x100 << MIPSCPU_INT_ATLAS));
-#else /* Not SMTC */
-                setup_irq(MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS, &atlasirq);
-#endif /* CONFIG_MIPS_MT_SMTC */
-        } else
-                setup_irq(MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS, &atlasirq);
-}
diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c
deleted file mode 100644
index 5c500802271..00000000000
--- a/arch/mips/mips-boards/atlas/atlas_setup.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/tty.h>
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-#include <linux/serial_8250.h>
-
-#include <asm/cpu.h>
-#include <asm/bootinfo.h>
-#include <asm/irq.h>
-#include <asm/mips-boards/generic.h>
-#include <asm/mips-boards/prom.h>
-#include <asm/mips-boards/atlas.h>
-#include <asm/mips-boards/atlasint.h>
-#include <asm/time.h>
-#include <asm/traps.h>
-
-static void __init serial_init(void);
-
-const char *get_system_type(void)
-{
-        return "MIPS Atlas";
-}
-
-const char display_string[] = "        LINUX ON ATLAS       ";
-
-void __init plat_mem_setup(void)
-{
-        mips_pcibios_init();
-
-        ioport_resource.end = 0x7fffffff;
-
-        serial_init();
-
-#ifdef CONFIG_KGDB
-        kgdb_config();
-#endif
-        mips_reboot_setup();
-}
-
-static void __init serial_init(void)
-{
-#ifdef CONFIG_SERIAL_8250
-        struct uart_port s;
-
-        memset(&s, 0, sizeof(s));
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-        s.iobase = ATLAS_UART_REGS_BASE;
-#else
-        s.iobase = ATLAS_UART_REGS_BASE+3;
-#endif
-        s.irq = ATLAS_INT_UART;
-        s.uartclk = ATLAS_BASE_BAUD * 16;
-        s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ;
-        s.iotype = UPIO_PORT;
-        s.regshift = 3;
-
-        if (early_serial_setup(&s) != 0) {
-                printk(KERN_ERR "Serial setup failed!\n");
-        }
-#endif
-}
diff --git a/arch/mips/mips-boards/generic/Makefile b/arch/mips/mips-boards/generic/Makefile
deleted file mode 100644
index f7f87fc09d1..00000000000
--- a/arch/mips/mips-boards/generic/Makefile
+++ /dev/null
@@ -1,29 +0,0 @@
-#
-# Carsten Langgaard, carstenl@mips.com
-# Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
-#
-# This program is free software; you can distribute it and/or modify it
-# under the terms of the GNU General Public License (Version 2) as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
-#
-# Makefile for the MIPS boards generic routines under Linux.
-#
-
-obj-y                           := reset.o display.o init.o memory.o \
-                                   cmdline.o time.o
-obj-y                           += amon.o
-
-obj-$(CONFIG_EARLY_PRINTK)      += console.o
-obj-$(CONFIG_PCI)               += pci.o
-obj-$(CONFIG_KGDB)              += gdb_hook.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mips-boards/malta/Makefile b/arch/mips/mips-boards/malta/Makefile
deleted file mode 100644
index db4ad654a6d..00000000000
--- a/arch/mips/mips-boards/malta/Makefile
+++ /dev/null
@@ -1,27 +0,0 @@
-#
-# Carsten Langgaard, carstenl@mips.com
-# Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
-#
-# This program is free software; you can distribute it and/or modify it
-# under the terms of the GNU General Public License (Version 2) as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
-#
-# Makefile for the MIPS Malta specific kernel interface routines
-# under Linux.
-#
-
-obj-y := malta_int.o malta_mtd.o malta_platform.o malta_setup.o
-
-# FIXME FIXME FIXME
-obj-$(CONFIG_MIPS_MT_SMTC) += malta_smtc.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mips-boards/sead/Makefile b/arch/mips/mips-boards/sead/Makefile
deleted file mode 100644
index 3682fe217bd..00000000000
--- a/arch/mips/mips-boards/sead/Makefile
+++ /dev/null
@@ -1,28 +0,0 @@
-#
-# Carsten Langgaard, carstenl@mips.com
-# Copyright (C) 2002 MIPS Technologies, Inc.  All rights reserved.
-#
-# ########################################################################
-#
-# This program is free software; you can distribute it and/or modify it
-# under the terms of the GNU General Public License (Version 2) as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
-#
-# #######################################################################
-#
-# Makefile for the MIPS SEAD specific kernel interface routines
-# under Linux.
-#
-
-obj-y           := sead_int.o sead_setup.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mips-boards/sead/sead_int.c b/arch/mips/mips-boards/sead/sead_int.c
deleted file mode 100644
index ec6dd194c14..00000000000
--- a/arch/mips/mips-boards/sead/sead_int.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2002 MIPS Technologies, Inc.  All rights reserved.
- * Copyright (C) 2003 Ralf Baechle (ralf@linux-mips.org)
- * Copyright (C) 2004  Maciej W. Rozycki
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Routines for generic manipulation of the interrupts found on the MIPS
- * Sead board.
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-#include <asm/system.h>
-
-#include <asm/mips-boards/seadint.h>
-
-static inline int clz(unsigned long x)
-{
-        __asm__(
-        "       .set    push                                    \n"
-        "       .set    mips32                                  \n"
-        "       clz     %0, %1                                  \n"
-        "       .set    pop                                     \n"
-        : "=r" (x)
-        : "r" (x));
-
-        return x;
-}
-
-/*
- * Version of ffs that only looks at bits 12..15.
- */
-static inline unsigned int irq_ffs(unsigned int pending)
-{
-#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64)
-        return -clz(pending) + 31 - CAUSEB_IP;
-#else
-        unsigned int a0 = 7;
-        unsigned int t0;
-
-        t0 = s0 & 0xf000;
-        t0 = t0 < 1;
-        t0 = t0 << 2;
-        a0 = a0 - t0;
-        s0 = s0 << t0;
-
-        t0 = s0 & 0xc000;
-        t0 = t0 < 1;
-        t0 = t0 << 1;
-        a0 = a0 - t0;
-        s0 = s0 << t0;
-
-        t0 = s0 & 0x8000;
-        t0 = t0 < 1;
-        //t0 = t0 << 2;
-        a0 = a0 - t0;
-        //s0 = s0 << t0;
-
-        return a0;
-#endif
-}
-
-/*
- * IRQs on the SEAD board look basically are combined together on hardware
- * interrupt 0 (MIPS IRQ 2)) like:
- *
- *      MIPS IRQ        Source
- *      --------        ------
- *             0        Software (ignored)
- *             1        Software (ignored)
- *             2        UART0 (hw0)
- *             3        UART1 (hw1)
- *             4        Hardware (ignored)
- *             5        Hardware (ignored)
- *             6        Hardware (ignored)
- *             7        R4k timer (what we use)
- *
- * We handle the IRQ according to _our_ priority which is:
- *
- * Highest ----     R4k Timer
- * Lowest  ----     Combined hardware interrupt
- *
- * then we just return, if multiple IRQs are pending then we will just take
- * another exception, big deal.
- */
-asmlinkage void plat_irq_dispatch(void)
-{
-        unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-        int irq;
-
-        irq = irq_ffs(pending);
-
-        if (irq >= 0)
-                do_IRQ(MIPS_CPU_IRQ_BASE + irq);
-        else
-                spurious_interrupt();
-}
-
-void __init arch_init_irq(void)
-{
-        mips_cpu_irq_init();
-}
diff --git a/arch/mips/mips-boards/sead/sead_setup.c b/arch/mips/mips-boards/sead/sead_setup.c
deleted file mode 100644
index 8aa8e5b7b07..00000000000
--- a/arch/mips/mips-boards/sead/sead_setup.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2002 MIPS Technologies, Inc.  All rights reserved.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * SEAD specific setup.
- */
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/tty.h>
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-#include <linux/serial_8250.h>
-
-#include <asm/cpu.h>
-#include <asm/bootinfo.h>
-#include <asm/irq.h>
-#include <asm/mips-boards/generic.h>
-#include <asm/mips-boards/prom.h>
-#include <asm/mips-boards/sead.h>
-#include <asm/mips-boards/seadint.h>
-#include <asm/time.h>
-
-static void __init serial_init(void);
-
-const char *get_system_type(void)
-{
-        return "MIPS SEAD";
-}
-
-const char display_string[] = "        LINUX ON SEAD       ";
-
-void __init plat_mem_setup(void)
-{
-        ioport_resource.end = 0x7fffffff;
-
-        serial_init();
-
-        mips_reboot_setup();
-}
-
-static void __init serial_init(void)
-{
-#ifdef CONFIG_SERIAL_8250
-        struct uart_port s;
-
-        memset(&s, 0, sizeof(s));
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-        s.iobase = SEAD_UART0_REGS_BASE;
-#else
-        s.iobase = SEAD_UART0_REGS_BASE+3;
-#endif
-        s.irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_UART0;
-        s.uartclk = SEAD_BASE_BAUD * 16;
-        s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ;
-        s.iotype = UPIO_PORT;
-        s.regshift = 3;
-
-        if (early_serial_setup(&s) != 0) {
-                printk(KERN_ERR "Serial setup failed!\n");
-        }
-#endif
-}
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 27096751ddc..71df3390c07 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -43,12 +43,12 @@
  *    primary cache.
  */
 static inline void r4k_on_each_cpu(void (*func) (void *info), void *info,
-                                   int retry, int wait)
+                                   int wait)
 {
         preempt_disable();
 
 #if !defined(CONFIG_MIPS_MT_SMP) && !defined(CONFIG_MIPS_MT_SMTC)
-        smp_call_function(func, info, retry, wait);
+        smp_call_function(func, info, wait);
 #endif
         func(info);
         preempt_enable();
@@ -350,7 +350,7 @@ static inline void local_r4k___flush_cache_all(void * args)
 
 static void r4k___flush_cache_all(void)
 {
-        r4k_on_each_cpu(local_r4k___flush_cache_all, NULL, 1, 1);
+        r4k_on_each_cpu(local_r4k___flush_cache_all, NULL, 1);
 }
 
 static inline int has_valid_asid(const struct mm_struct *mm)
@@ -397,7 +397,7 @@ static void r4k_flush_cache_range(struct vm_area_struct *vma,
         int exec = vma->vm_flags & VM_EXEC;
 
         if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc))
-                r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1);
+                r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1);
 }
 
 static inline void local_r4k_flush_cache_mm(void * args)
@@ -429,7 +429,7 @@ static void r4k_flush_cache_mm(struct mm_struct *mm)
         if (!cpu_has_dc_aliases)
                 return;
 
-        r4k_on_each_cpu(local_r4k_flush_cache_mm, mm, 1, 1);
+        r4k_on_each_cpu(local_r4k_flush_cache_mm, mm, 1);
 }
 
 struct flush_cache_page_args {
@@ -521,7 +521,7 @@ static void r4k_flush_cache_page(struct vm_area_struct *vma,
         args.addr = addr;
         args.pfn = pfn;
 
-        r4k_on_each_cpu(local_r4k_flush_cache_page, &args, 1, 1);
+        r4k_on_each_cpu(local_r4k_flush_cache_page, &args, 1);
 }
 
 static inline void local_r4k_flush_data_cache_page(void * addr)
@@ -535,7 +535,7 @@ static void r4k_flush_data_cache_page(unsigned long addr)
                 local_r4k_flush_data_cache_page((void *)addr);
         else
                 r4k_on_each_cpu(local_r4k_flush_data_cache_page, (void *) addr,
-                                1, 1);
+                                1);
 }
 
 struct flush_icache_range_args {
@@ -571,7 +571,7 @@ static void r4k_flush_icache_range(unsigned long start, unsigned long end)
         args.start = start;
         args.end = end;
 
-        r4k_on_each_cpu(local_r4k_flush_icache_range, &args, 1, 1);
+        r4k_on_each_cpu(local_r4k_flush_icache_range, &args, 1);
         instruction_hazard();
 }
 
@@ -672,7 +672,7 @@ static void local_r4k_flush_cache_sigtramp(void * arg)
 
 static void r4k_flush_cache_sigtramp(unsigned long addr)
 {
-        r4k_on_each_cpu(local_r4k_flush_cache_sigtramp, (void *) addr, 1, 1);
+        r4k_on_each_cpu(local_r4k_flush_cache_sigtramp, (void *) addr, 1);
 }
 
 static void r4k_flush_icache_all(void)
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 1655aa69e13..f467199676a 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -396,7 +396,7 @@ int __cpuinit uasm_in_compat_space_p(long addr)
 #endif
 }
 
-int __cpuinit uasm_rel_highest(long val)
+static int __cpuinit uasm_rel_highest(long val)
 {
 #ifdef CONFIG_64BIT
         return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
@@ -405,7 +405,7 @@ int __cpuinit uasm_rel_highest(long val)
 #endif
 }
 
-int __cpuinit uasm_rel_higher(long val)
+static int __cpuinit uasm_rel_higher(long val)
 {
 #ifdef CONFIG_64BIT
         return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
diff --git a/arch/mips/mm/uasm.h b/arch/mips/mm/uasm.h
index 0d6a66f3203..c6d1e3dd82d 100644
--- a/arch/mips/mm/uasm.h
+++ b/arch/mips/mm/uasm.h
@@ -103,8 +103,6 @@ struct uasm_label {
 void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid);
 #ifdef CONFIG_64BIT
 int uasm_in_compat_space_p(long addr);
-int uasm_rel_highest(long val);
-int uasm_rel_higher(long val);
 #endif
 int uasm_rel_hi(long val);
 int uasm_rel_lo(long val);
diff --git a/arch/mips/mti-malta/Makefile b/arch/mips/mti-malta/Makefile
new file mode 100644
index 00000000000..f8064446e81
--- /dev/null
+++ b/arch/mips/mti-malta/Makefile
@@ -0,0 +1,21 @@
+#
+# Carsten Langgaard, carstenl@mips.com
+# Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
+#
+# Copyright (C) 2008 Wind River Systems, Inc.
+#   written by Ralf Baechle <ralf@linux-mips.org>
+#
+obj-y                           := malta-amon.o malta-cmdline.o \
+                                   malta-display.o malta-init.o malta-int.o \
+                                   malta-memory.o malta-mtd.o \
+                                   malta-platform.o malta-reset.o \
+                                   malta-setup.o malta-time.o
+
+obj-$(CONFIG_EARLY_PRINTK)      += malta-console.o
+obj-$(CONFIG_PCI)               += malta-pci.o
+obj-$(CONFIG_KGDB)              += malta-kgdb.o
+
+# FIXME FIXME FIXME
+obj-$(CONFIG_MIPS_MT_SMTC)      += malta_smtc.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mips-boards/generic/amon.c b/arch/mips/mti-malta/malta-amon.c
index 96236bf3383..96236bf3383 100644
--- a/arch/mips/mips-boards/generic/amon.c
+++ b/arch/mips/mti-malta/malta-amon.c
diff --git a/arch/mips/mips-boards/generic/cmdline.c b/arch/mips/mti-malta/malta-cmdline.c
index 1871c30ed2e..1871c30ed2e 100644
--- a/arch/mips/mips-boards/generic/cmdline.c
+++ b/arch/mips/mti-malta/malta-cmdline.c
diff --git a/arch/mips/mips-boards/generic/console.c b/arch/mips/mti-malta/malta-console.c
index 4d8ab99e415..43bcfb4f816 100644
--- a/arch/mips/mips-boards/generic/console.c
+++ b/arch/mips/mti-malta/malta-console.c
@@ -22,30 +22,9 @@
 #include <linux/serial_reg.h>
 #include <asm/io.h>
 
-#ifdef CONFIG_MIPS_ATLAS
-#include <asm/mips-boards/atlas.h>
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-#define PORT(offset) (ATLAS_UART_REGS_BASE     + ((offset)<<3))
-#else
-#define PORT(offset) (ATLAS_UART_REGS_BASE + 3 + ((offset)<<3))
-#endif
-
-#elif defined(CONFIG_MIPS_SEAD)
-
-#include <asm/mips-boards/sead.h>
-
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-#define PORT(offset) (SEAD_UART0_REGS_BASE     + ((offset)<<3))
-#else
-#define PORT(offset) (SEAD_UART0_REGS_BASE + 3 + ((offset)<<3))
-#endif
-
-#else
 
 #define PORT(offset) (0x3f8 + (offset))
 
-#endif
 
 static inline unsigned int serial_in(int offset)
 {
diff --git a/arch/mips/mips-boards/generic/display.c b/arch/mips/mti-malta/malta-display.c
index 2a0057cfc30..7c8828fcb0a 100644
--- a/arch/mips/mips-boards/generic/display.c
+++ b/arch/mips/mti-malta/malta-display.c
@@ -22,6 +22,7 @@
 #include <linux/timer.h>
 #include <asm/io.h>
 #include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/prom.h>
 
 extern const char display_string[];
 static unsigned int display_count;
diff --git a/arch/mips/mips-boards/generic/init.c b/arch/mips/mti-malta/malta-init.c
index 83b9dc73920..c0653021a17 100644
--- a/arch/mips/mips-boards/generic/init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -197,14 +197,6 @@ void __init kgdb_config(void)
                         while ((c = *++argptr) && ('0' <= c && c <= '9'))
                                 speed = speed * 10 + c - '0';
                 }
-#ifdef CONFIG_MIPS_ATLAS
-                if (line == 1) {
-                        speed = saa9730_kgdb_hook(speed);
-                        generic_putDebugChar = saa9730_putDebugChar;
-                        generic_getDebugChar = saa9730_getDebugChar;
-                }
-                else
-#endif
                 {
                         speed = rs_kgdb_hook(line, speed);
                         generic_putDebugChar = rs_putDebugChar;
@@ -260,9 +252,6 @@ void __init prom_init(void)
 
         mips_display_message("LINUX");
 
-#ifdef CONFIG_MIPS_SEAD
-        set_io_port_base(KSEG1);
-#else
         /*
          * early setup of _pcictrl_bonito so that we can determine
          * the system controller on a CORE_EMUL board
@@ -414,7 +403,6 @@ void __init prom_init(void)
                 mips_display_message("SC Error");
                 while (1);   /* We die here... */
         }
-#endif
         board_nmi_handler_setup = mips_nmi_setup;
         board_ejtag_handler_setup = mips_ejtag_setup;
 
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mti-malta/malta-int.c
index 8c495104b32..ea176113fea 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -363,6 +363,7 @@ static msc_irqmap_t __initdata msc_eicirqmap[] = {
 
 static int __initdata msc_nr_eicirqs = ARRAY_SIZE(msc_eicirqmap);
 
+#if defined(CONFIG_MIPS_MT_SMP)
 /*
  * This GIC specific tabular array defines the association between External
  * Interrupts and CPUs/Core Interrupts. The nature of the External
@@ -394,11 +395,12 @@ static struct gic_intr_map gic_intr_map[] = {
         { GIC_EXT_INTR(22),     3,      GIC_CPU_INT1,   GIC_POL_POS, GIC_TRIG_EDGE,     1 },
         { GIC_EXT_INTR(23),     3,      GIC_CPU_INT2,   GIC_POL_POS, GIC_TRIG_EDGE,     1 },
 };
+#endif
 
 /*
  * GCMP needs to be detected before any SMP initialisation
  */
-int __init gcmp_probe(unsigned long addr, unsigned long size)
+static int __init gcmp_probe(unsigned long addr, unsigned long size)
 {
         if (gcmp_present >= 0)
                 return gcmp_present;
@@ -412,7 +414,8 @@ int __init gcmp_probe(unsigned long addr, unsigned long size)
         return gcmp_present;
 }
 
-void __init fill_ipi_map(void)
+#if defined(CONFIG_MIPS_MT_SMP)
+static void __init fill_ipi_map(void)
 {
         int i;
 
@@ -422,6 +425,7 @@ void __init fill_ipi_map(void)
                                 (1 << (gic_intr_map[i].pin + 2));
         }
 }
+#endif
 
 void __init arch_init_irq(void)
 {
@@ -527,7 +531,6 @@ void __init arch_init_irq(void)
                                 .call =  GIC_IPI_EXT_INTR_CALLFNC_VPE3
                         }
                 };
-#define NIPI (sizeof(ipiirq)/sizeof(ipiirq[0]))
                 fill_ipi_map();
                 gic_init(GIC_BASE_ADDR, GIC_ADDRSPACE_SZ, gic_intr_map, ARRAY_SIZE(gic_intr_map), MIPS_GIC_IRQ_BASE);
                 if (!gcmp_present) {
@@ -549,7 +552,7 @@ void __init arch_init_irq(void)
                 printk("CPU%d: status register now %08x\n", smp_processor_id(), read_c0_status());
                 write_c0_status(0x1100dc00);
                 printk("CPU%d: status register frc %08x\n", smp_processor_id(), read_c0_status());
-                for (i = 0; i < NIPI; i++) {
+                for (i = 0; i < ARRAY_SIZE(ipiirq); i++) {
                         setup_irq(MIPS_GIC_IRQ_BASE + ipiirq[i].resched, &irq_resched);
                         setup_irq(MIPS_GIC_IRQ_BASE + ipiirq[i].call, &irq_call);
 
diff --git a/arch/mips/mips-boards/generic/gdb_hook.c b/arch/mips/mti-malta/malta-kgdb.c
index 6a1854de457..6a1854de457 100644
--- a/arch/mips/mips-boards/generic/gdb_hook.c
+++ b/arch/mips/mti-malta/malta-kgdb.c
diff --git a/arch/mips/mips-boards/generic/memory.c b/arch/mips/mti-malta/malta-memory.c
index 5e443bba566..61888ff72c8 100644
--- a/arch/mips/mips-boards/generic/memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -97,7 +97,6 @@ static struct prom_pmemblock * __init prom_getmdesc(void)
         mdesc[1].base = 0x00001000;
         mdesc[1].size = 0x000ef000;
 
-#ifdef CONFIG_MIPS_MALTA
         /*
          * The area 0x000f0000-0x000fffff is allocated for BIOS memory by the
          * south bridge and PCI access always forwarded to the ISA Bus and
@@ -108,11 +107,6 @@ static struct prom_pmemblock * __init prom_getmdesc(void)
         mdesc[2].type = yamon_dontuse;
         mdesc[2].base = 0x000f0000;
         mdesc[2].size = 0x00010000;
-#else
-        mdesc[2].type = yamon_prom;
-        mdesc[2].base = 0x000f0000;
-        mdesc[2].size = 0x00010000;
-#endif
 
         mdesc[3].type = yamon_dontuse;
         mdesc[3].base = 0x00100000;
diff --git a/arch/mips/mips-boards/malta/malta_mtd.c b/arch/mips/mti-malta/malta-mtd.c
index 8ad9bdf25dc..8ad9bdf25dc 100644
--- a/arch/mips/mips-boards/malta/malta_mtd.c
+++ b/arch/mips/mti-malta/malta-mtd.c
diff --git a/arch/mips/mips-boards/generic/pci.c b/arch/mips/mti-malta/malta-pci.c
index b9743190609..b9743190609 100644
--- a/arch/mips/mips-boards/generic/pci.c
+++ b/arch/mips/mti-malta/malta-pci.c
diff --git a/arch/mips/mips-boards/malta/malta_platform.c b/arch/mips/mti-malta/malta-platform.c
index 83b9bab3cd3..83b9bab3cd3 100644
--- a/arch/mips/mips-boards/malta/malta_platform.c
+++ b/arch/mips/mti-malta/malta-platform.c
diff --git a/arch/mips/mips-boards/generic/reset.c b/arch/mips/mti-malta/malta-reset.c
index 583d468d98a..42dee4da37b 100644
--- a/arch/mips/mips-boards/generic/reset.c
+++ b/arch/mips/mti-malta/malta-reset.c
@@ -27,15 +27,9 @@
 #include <asm/io.h>
 #include <asm/reboot.h>
 #include <asm/mips-boards/generic.h>
-#if defined(CONFIG_MIPS_ATLAS)
-#include <asm/mips-boards/atlas.h>
-#endif
 
 static void mips_machine_restart(char *command);
 static void mips_machine_halt(void);
-#if defined(CONFIG_MIPS_ATLAS)
-static void atlas_machine_power_off(void);
-#endif
 
 static void mips_machine_restart(char *command)
 {
@@ -53,23 +47,10 @@ static void mips_machine_halt(void)
         __raw_writel(GORESET, softres_reg);
 }
 
-#if defined(CONFIG_MIPS_ATLAS)
-static void atlas_machine_power_off(void)
-{
-        unsigned int __iomem *psustby_reg = ioremap(ATLAS_PSUSTBY_REG, sizeof(unsigned int));
-
-        writew(ATLAS_GOSTBY, psustby_reg);
-}
-#endif
 
 void mips_reboot_setup(void)
 {
         _machine_restart = mips_machine_restart;
         _machine_halt = mips_machine_halt;
-#if defined(CONFIG_MIPS_ATLAS)
-        pm_power_off = atlas_machine_power_off;
-#endif
-#if defined(CONFIG_MIPS_MALTA) || defined(CONFIG_MIPS_SEAD)
         pm_power_off = mips_machine_halt;
-#endif
 }
diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mti-malta/malta-setup.c
index e7cad54936c..e7cad54936c 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mti-malta/malta-setup.c
diff --git a/arch/mips/mips-boards/malta/malta_smtc.c b/arch/mips/mti-malta/malta-smtc.c
index 5ea705e4945..5ea705e4945 100644
--- a/arch/mips/mips-boards/malta/malta_smtc.c
+++ b/arch/mips/mti-malta/malta-smtc.c
diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mti-malta/malta-time.c
index fe2cac1b451..0b97d47691f 100644
--- a/arch/mips/mips-boards/generic/time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -42,15 +42,7 @@
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/prom.h>
 
-#ifdef CONFIG_MIPS_ATLAS
-#include <asm/mips-boards/atlasint.h>
-#endif
-#ifdef CONFIG_MIPS_MALTA
 #include <asm/mips-boards/maltaint.h>
-#endif
-#ifdef CONFIG_MIPS_SEAD
-#include <asm/mips-boards/seadint.h>
-#endif
 
 unsigned long cpu_khz;
 
@@ -76,20 +68,6 @@ static unsigned int __init estimate_cpu_frequency(void)
         unsigned int prid = read_c0_prid() & 0xffff00;
         unsigned int count;
 
-#if defined(CONFIG_MIPS_SEAD) || defined(CONFIG_MIPS_SIM)
-        /*
-         * The SEAD board doesn't have a real time clock, so we can't
-         * really calculate the timer frequency
-         * For now we hardwire the SEAD board frequency to 12MHz.
-         */
-
-        if ((prid == (PRID_COMP_MIPS | PRID_IMP_20KC)) ||
-            (prid == (PRID_COMP_MIPS | PRID_IMP_25KF)))
-                count = 12000000;
-        else
-                count = 6000000;
-#endif
-#if defined(CONFIG_MIPS_ATLAS) || defined(CONFIG_MIPS_MALTA)
         unsigned long flags;
         unsigned int start;
 
@@ -110,7 +88,6 @@ static unsigned int __init estimate_cpu_frequency(void)
 
         /* restore interrupts */
         local_irq_restore(flags);
-#endif
 
         mips_hpt_frequency = count;
         if ((prid != (PRID_COMP_MIPS | PRID_IMP_20KC)) &&
diff --git a/arch/mips/nxp/pnx8550/common/platform.c b/arch/mips/nxp/pnx8550/common/platform.c
index c7c763dbe58..21d2955359b 100644
--- a/arch/mips/nxp/pnx8550/common/platform.c
+++ b/arch/mips/nxp/pnx8550/common/platform.c
@@ -13,6 +13,7 @@
  * warranty of any kind, whether express or implied.
  */
 #include <linux/device.h>
+#include <linux/dma-mapping.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/resource.h>
@@ -91,16 +92,16 @@ struct pnx8xxx_port pnx8xxx_ports[] = {
 };
 
 /* The dmamask must be set for OHCI to work */
-static u64 ohci_dmamask = ~(u32)0;
+static u64 ohci_dmamask = DMA_32BIT_MASK;
 
-static u64 uart_dmamask = ~(u32)0;
+static u64 uart_dmamask = DMA_32BIT_MASK;
 
 static struct platform_device pnx8550_usb_ohci_device = {
         .name           = "pnx8550-ohci",
         .id             = -1,
         .dev = {
                 .dma_mask               = &ohci_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
         },
         .num_resources  = ARRAY_SIZE(pnx8550_usb_ohci_resources),
         .resource       = pnx8550_usb_ohci_resources,
@@ -111,7 +112,7 @@ static struct platform_device pnx8550_uart_device = {
         .id             = -1,
         .dev = {
                 .dma_mask               = &uart_dmamask,
-                .coherent_dma_mask      = 0xffffffff,
+                .coherent_dma_mask      = DMA_32BIT_MASK,
                 .platform_data = pnx8xxx_ports,
         },
         .num_resources  = ARRAY_SIZE(pnx8550_uart_resources),
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index b5f6f71b27b..dd2fbd6645c 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -27,7 +27,7 @@ static int op_mips_setup(void)
         model->reg_setup(ctr);
 
         /* Configure the registers on all cpus.  */
-        on_each_cpu(model->cpu_setup, NULL, 0, 1);
+        on_each_cpu(model->cpu_setup, NULL, 1);
 
         return 0;
 }
@@ -58,7 +58,7 @@ static int op_mips_create_files(struct super_block * sb, struct dentry * root)
 
 static int op_mips_start(void)
 {
-        on_each_cpu(model->cpu_start, NULL, 0, 1);
+        on_each_cpu(model->cpu_start, NULL, 1);
 
         return 0;
 }
@@ -66,7 +66,7 @@ static int op_mips_start(void)
 static void op_mips_stop(void)
 {
         /* Disable performance monitoring for all counters.  */
-        on_each_cpu(model->cpu_stop, NULL, 0, 1);
+        on_each_cpu(model->cpu_stop, NULL, 1);
 }
 
 int __init oprofile_arch_init(struct oprofile_operations *ops)
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index b40df7d2cf4..54759f1669d 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -313,7 +313,7 @@ static int __init mipsxx_init(void)
         if (!cpu_has_mipsmt_pertccounters)
                 counters = counters_total_to_per_cpu(counters);
 #endif
-        on_each_cpu(reset_counters, (void *)(long)counters, 0, 1);
+        on_each_cpu(reset_counters, (void *)(long)counters, 1);
 
         op_model_mipsxx_ops.num_counters = counters;
         switch (current_cpu_type()) {
@@ -382,7 +382,7 @@ static void mipsxx_exit(void)
         int counters = op_model_mipsxx_ops.num_counters;
 
         counters = counters_per_cpu_to_total(counters);
-        on_each_cpu(reset_counters, (void *)(long)counters, 0, 1);
+        on_each_cpu(reset_counters, (void *)(long)counters, 1);
 
         perf_irq = save_perf_irq;
 }
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index ed0c07622ba..57e34cafa49 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -11,17 +11,16 @@ obj-$(CONFIG_MIPS_BONITO64)	+= ops-bonito64.o
 obj-$(CONFIG_PCI_GT64XXX_PCI0)  += ops-gt64xxx_pci0.o
 obj-$(CONFIG_MIPS_MSC)          += ops-msc.o
 obj-$(CONFIG_MIPS_NILE4)        += ops-nile4.o
-obj-$(CONFIG_MIPS_TX3927)       += ops-tx3927.o
+obj-$(CONFIG_SOC_TX3927)        += ops-tx3927.o
 obj-$(CONFIG_PCI_VR41XX)        += ops-vr41xx.o pci-vr41xx.o
-obj-$(CONFIG_NEC_CMBVR4133)     += fixup-vr4133.o
 obj-$(CONFIG_MARKEINS)          += ops-emma2rh.o pci-emma2rh.o fixup-emma2rh.o
+obj-$(CONFIG_PCI_TX4927)        += ops-tx4927.o
 
 #
 # These are still pretty much in the old state, watch, go blind.
 #
 obj-$(CONFIG_BASLER_EXCITE)     += ops-titan.o pci-excite.o fixup-excite.o
 obj-$(CONFIG_LASAT)             += pci-lasat.o
-obj-$(CONFIG_MIPS_ATLAS)        += fixup-atlas.o
 obj-$(CONFIG_MIPS_COBALT)       += fixup-cobalt.o
 obj-$(CONFIG_SOC_AU1500)        += fixup-au1000.o ops-au1000.o
 obj-$(CONFIG_SOC_AU1550)        += fixup-au1000.o ops-au1000.o
@@ -42,9 +41,11 @@ obj-$(CONFIG_SNI_RM)		+= fixup-sni.o ops-sni.o
 obj-$(CONFIG_TANBAC_TB0219)     += fixup-tb0219.o
 obj-$(CONFIG_TANBAC_TB0226)     += fixup-tb0226.o
 obj-$(CONFIG_TANBAC_TB0287)     += fixup-tb0287.o
-obj-$(CONFIG_TOSHIBA_JMR3927)   += fixup-jmr3927.o pci-jmr3927.o
-obj-$(CONFIG_TOSHIBA_RBTX4927)  += fixup-rbtx4927.o ops-tx4927.o
-obj-$(CONFIG_TOSHIBA_RBTX4938)  += fixup-tx4938.o ops-tx4938.o
+obj-$(CONFIG_TOSHIBA_JMR3927)   += fixup-jmr3927.o
+obj-$(CONFIG_SOC_TX4927)        += pci-tx4927.o
+obj-$(CONFIG_SOC_TX4938)        += pci-tx4938.o
+obj-$(CONFIG_TOSHIBA_RBTX4927)  += fixup-rbtx4927.o
+obj-$(CONFIG_TOSHIBA_RBTX4938)  += fixup-rbtx4938.o
 obj-$(CONFIG_VICTOR_MPC30X)     += fixup-mpc30x.o
 obj-$(CONFIG_ZAO_CAPCELLA)      += fixup-capcella.o
 obj-$(CONFIG_WR_PPMC)           += fixup-wrppmc.o
diff --git a/arch/mips/pci/fixup-atlas.c b/arch/mips/pci/fixup-atlas.c
deleted file mode 100644
index 506e883a8c7..00000000000
--- a/arch/mips/pci/fixup-atlas.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright (C) 2003, 2004  Ralf Baechle (ralf@linux-mips.org)
- * Copyright (C) 2005  MIPS Technologies, Inc.  All rights reserved.
- *      Author:  Maciej W. Rozycki <macro@mips.com>
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- */
-#include <linux/init.h>
-#include <linux/pci.h>
-
-#include <asm/mips-boards/atlasint.h>
-
-#define PCIA            ATLAS_INT_PCIA
-#define PCIB            ATLAS_INT_PCIB
-#define PCIC            ATLAS_INT_PCIC
-#define PCID            ATLAS_INT_PCID
-#define INTA            ATLAS_INT_INTA
-#define INTB            ATLAS_INT_INTB
-#define ETH             ATLAS_INT_ETH
-#define INTC            ATLAS_INT_INTC
-#define SCSI            ATLAS_INT_SCSI
-#define INTD            ATLAS_INT_INTD
-
-static char irq_tab[][5] __initdata = {
-        /*      INTA    INTB    INTC    INTD */
-        {0,     0,      0,      0,      0 },    /*  0: Unused */
-        {0,     0,      0,      0,      0 },    /*  1: Unused */
-        {0,     0,      0,      0,      0 },    /*  2: Unused */
-        {0,     0,      0,      0,      0 },    /*  3: Unused */
-        {0,     0,      0,      0,      0 },    /*  4: Unused */
-        {0,     0,      0,      0,      0 },    /*  5: Unused */
-        {0,     0,      0,      0,      0 },    /*  6: Unused */
-        {0,     0,      0,      0,      0 },    /*  7: Unused */
-        {0,     0,      0,      0,      0 },    /*  8: Unused */
-        {0,     0,      0,      0,      0 },    /*  9: Unused */
-        {0,     0,      0,      0,      0 },    /* 10: Unused */
-        {0,     0,      0,      0,      0 },    /* 11: Unused */
-        {0,     0,      0,      0,      0 },    /* 12: Unused */
-        {0,     0,      0,      0,      0 },    /* 13: Unused */
-        {0,     0,      0,      0,      0 },    /* 14: Unused */
-        {0,     PCIA,   PCIB,   PCIC,   PCID }, /* 15: cPCI (behind 21150) */
-        {0,     SCSI,   0,      0,      0 },    /* 16: SYM53C810A SCSI */
-        {0,     0,      0,      0,      0 },    /* 17: Core */
-        {0,     INTA,   INTB,   INTC,   INTD }, /* 18: PCI Slot */
-        {0,     ETH,    0,      0,      0 },    /* 19: SAA9730 Eth. et al. */
-        {0,     0,      0,      0,      0 },    /* 20: Unused */
-        {0,     0,      0,      0,      0 }     /* 21: Unused */
-};
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-        return irq_tab[slot][pin];
-}
-
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
-        return 0;
-}
-
-#ifdef CONFIG_KGDB
-/*
- * The PCI scan may have moved the saa9730 I/O address, so reread
- * the address here.
- * This does mean that it's not possible to debug the PCI bus configuration
- * code, but it is better than nothing...
- */
-
-static void atlas_saa9730_base_fixup(struct pci_dev *pdev)
-{
-        extern void *saa9730_base;
-        if (pdev->bus == 0 && PCI_SLOT(pdev->devfn) == 19)
-                (void) pci_read_config_dword(pdev, 0x14, (u32 *)&saa9730_base);
-        printk("saa9730_base = %x\n", saa9730_base);
-}
-
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA9730,
-         atlas_saa9730_base_fixup);
-
-#endif
diff --git a/arch/mips/pci/fixup-jmr3927.c b/arch/mips/pci/fixup-jmr3927.c
index e974394be7b..0f1069527cb 100644
--- a/arch/mips/pci/fixup-jmr3927.c
+++ b/arch/mips/pci/fixup-jmr3927.c
@@ -28,36 +28,31 @@
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
 #include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/init.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/jmr3927.h>
 
-#include <asm/jmr3927/jmr3927.h>
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int __init jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
         unsigned char irq = pin;
 
-        /* SMSC SLC90E66 IDE uses irq 14, 15 (default) */
-        if (dev->vendor == PCI_VENDOR_ID_EFAR &&
-            dev->device == PCI_DEVICE_ID_EFAR_SLC90E66_1)
-                return irq;
         /* IRQ rotation (PICMG) */
         irq--;                  /* 0-3 */
-        if (dev->bus->parent == NULL &&
-            slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(23)) {
+        if (slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(23)) {
                 /* PCI CardSlot (IDSEL=A23, DevNu=12) */
                 /* PCIA => PCIC (IDSEL=A23) */
                 /* NOTE: JMR3927 JP1 must be set to OPEN */
                 irq = (irq + 2) % 4;
-        } else if (dev->bus->parent == NULL &&
-                   slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(22)) {
+        } else if (slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(22)) {
                 /* PCI CardSlot (IDSEL=A22, DevNu=11) */
                 /* PCIA => PCIA (IDSEL=A22) */
                 /* NOTE: JMR3927 JP1 must be set to OPEN */
                 irq = (irq + 0) % 4;
         } else {
                 /* PCI Backplane */
-                irq = (irq + 3 + slot) % 4;
+                if (txx9_pci_option & TXX9_PCI_OPT_PICMG)
+                        irq = (irq + 33 - slot) % 4;
+                else
+                        irq = (irq + 3 + slot) % 4;
         }
         irq++;                  /* 1-4 */
 
@@ -66,15 +61,13 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
                 irq = JMR3927_IRQ_IOC_PCIA;
                 break;
         case 2:
-                // wrong for backplane irq = JMR3927_IRQ_IOC_PCIB;
-                irq = JMR3927_IRQ_IOC_PCID;
+                irq = JMR3927_IRQ_IOC_PCIB;
                 break;
         case 3:
                 irq = JMR3927_IRQ_IOC_PCIC;
                 break;
         case 4:
-                // wrong for backplane irq = JMR3927_IRQ_IOC_PCID;
-                irq = JMR3927_IRQ_IOC_PCIB;
+                irq = JMR3927_IRQ_IOC_PCID;
                 break;
         }
 
@@ -84,9 +77,3 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
                 irq = JMR3927_IRQ_ETHER0;
         return irq;
 }
-
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
-        return 0;
-}
diff --git a/arch/mips/pci/fixup-rbtx4927.c b/arch/mips/pci/fixup-rbtx4927.c
index 7450c335b38..321db265829 100644
--- a/arch/mips/pci/fixup-rbtx4927.c
+++ b/arch/mips/pci/fixup-rbtx4927.c
@@ -33,108 +33,41 @@
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
 #include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/rbtx4927.h>
 
-#include <asm/tx4927/tx4927.h>
-#include <asm/tx4927/tx4927_pci.h>
-
-#undef  DEBUG
-#ifdef  DEBUG
-#define DBG(x...)       printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/* look up table for backplane pci irq for slots 17-20 by pin # */
-static unsigned char backplane_pci_irq[4][4] = {
-        /* PJ6 SLOT:  17, PIN: 1 */ {TX4927_IRQ_IOC_PCIA,
-                                     /* PJ6 SLOT:  17, PIN: 2 */
-                                     TX4927_IRQ_IOC_PCIB,
-                                     /* PJ6 SLOT:  17, PIN: 3 */
-                                     TX4927_IRQ_IOC_PCIC,
-                                     /* PJ6 SLOT:  17, PIN: 4 */
-                                     TX4927_IRQ_IOC_PCID},
-        /* SB  SLOT:  18, PIN: 1 */ {TX4927_IRQ_IOC_PCIB,
-                                     /* SB  SLOT:  18, PIN: 2 */
-                                     TX4927_IRQ_IOC_PCIC,
-                                     /* SB  SLOT:  18, PIN: 3 */
-                                     TX4927_IRQ_IOC_PCID,
-                                     /* SB  SLOT:  18, PIN: 4 */
-                                     TX4927_IRQ_IOC_PCIA},
-        /* PJ5 SLOT:  19, PIN: 1 */ {TX4927_IRQ_IOC_PCIC,
-                                     /* PJ5 SLOT:  19, PIN: 2 */
-                                     TX4927_IRQ_IOC_PCID,
-                                     /* PJ5 SLOT:  19, PIN: 3 */
-                                     TX4927_IRQ_IOC_PCIA,
-                                     /* PJ5 SLOT:  19, PIN: 4 */
-                                     TX4927_IRQ_IOC_PCIB},
-        /* PJ4 SLOT:  20, PIN: 1 */ {TX4927_IRQ_IOC_PCID,
-                                     /* PJ4 SLOT:  20, PIN: 2 */
-                                     TX4927_IRQ_IOC_PCIA,
-                                     /* PJ4 SLOT:  20, PIN: 3 */
-                                     TX4927_IRQ_IOC_PCIB,
-                                     /* PJ4 SLOT:  20, PIN: 4 */
-                                     TX4927_IRQ_IOC_PCIC}
-};
-
-static int pci_get_irq(const struct pci_dev *dev, int pin)
+int __init rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
         unsigned char irq = pin;
 
-        DBG("pci_get_irq: pin is %d\n", pin);
         /* IRQ rotation */
         irq--;                  /* 0-3 */
-        if (dev->bus->parent == NULL &&
-            PCI_SLOT(dev->devfn) == TX4927_PCIC_IDSEL_AD_TO_SLOT(23)) {
-                printk("Onboard PCI_SLOT(dev->devfn) is %d\n",
-                       PCI_SLOT(dev->devfn));
-                /* IDSEL=A23 is tx4927 onboard pci slot */
-                irq = (irq + PCI_SLOT(dev->devfn)) % 4;
-                irq++;          /* 1-4 */
-                DBG("irq is now %d\n", irq);
-
-                switch (irq) {
-                case 1:
-                        irq = TX4927_IRQ_IOC_PCIA;
-                        break;
-                case 2:
-                        irq = TX4927_IRQ_IOC_PCIB;
-                        break;
-                case 3:
-                        irq = TX4927_IRQ_IOC_PCIC;
-                        break;
-                case 4:
-                        irq = TX4927_IRQ_IOC_PCID;
-                        break;
-                }
+        if (slot == TX4927_PCIC_IDSEL_AD_TO_SLOT(23)) {
+                /* PCI CardSlot (IDSEL=A23) */
+                /* PCIA => PCIA */
+                irq = (irq + 0 + slot) % 4;
         } else {
                 /* PCI Backplane */
-                DBG("PCI Backplane PCI_SLOT(dev->devfn) is %d\n",
-                    PCI_SLOT(dev->devfn));
-                irq = backplane_pci_irq[PCI_SLOT(dev->devfn) - 17][irq];
+                if (txx9_pci_option & TXX9_PCI_OPT_PICMG)
+                        irq = (irq + 33 - slot) % 4;
+                else
+                        irq = (irq + 3 + slot) % 4;
         }
-        DBG("assigned irq %d\n", irq);
-        return irq;
-}
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-        unsigned char irq;
-
-        printk("PCI Setup for pin %d \n", pin);
-
-        if (dev->device == 0x9130) /* IDE */
-                irq = 14;
-        else
-                irq = pci_get_irq(dev, pin);
+        irq++;  /* 1-4 */
 
+        switch (irq) {
+        case 1:
+                irq = RBTX4927_IRQ_IOC_PCIA;
+                break;
+        case 2:
+                irq = RBTX4927_IRQ_IOC_PCIB;
+                break;
+        case 3:
+                irq = RBTX4927_IRQ_IOC_PCIC;
+                break;
+        case 4:
+                irq = RBTX4927_IRQ_IOC_PCID;
+                break;
+        }
         return irq;
 }
-
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
-        return 0;
-}
diff --git a/arch/mips/pci/fixup-rbtx4938.c b/arch/mips/pci/fixup-rbtx4938.c
new file mode 100644
index 00000000000..a80579af609
--- /dev/null
+++ b/arch/mips/pci/fixup-rbtx4938.c
@@ -0,0 +1,53 @@
+/*
+ * Toshiba rbtx4938 pci routines
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/types.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/rbtx4938.h>
+
+int __init rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        int irq = tx4938_pcic1_map_irq(dev, slot);
+
+        if (irq >= 0)
+                return irq;
+        irq = pin;
+        /* IRQ rotation */
+        irq--;  /* 0-3 */
+        if (slot == TX4927_PCIC_IDSEL_AD_TO_SLOT(23)) {
+                /* PCI CardSlot (IDSEL=A23) */
+                /* PCIA => PCIA (IDSEL=A23) */
+                irq = (irq + 0 + slot) % 4;
+        } else {
+                /* PCI Backplane */
+                if (txx9_pci_option & TXX9_PCI_OPT_PICMG)
+                        irq = (irq + 33 - slot) % 4;
+                else
+                        irq = (irq + 3 + slot) % 4;
+        }
+        irq++;  /* 1-4 */
+
+        switch (irq) {
+        case 1:
+                irq = RBTX4938_IRQ_IOC_PCIA;
+                break;
+        case 2:
+                irq = RBTX4938_IRQ_IOC_PCIB;
+                break;
+        case 3:
+                irq = RBTX4938_IRQ_IOC_PCIC;
+                break;
+        case 4:
+                irq = RBTX4938_IRQ_IOC_PCID;
+                break;
+        }
+        return irq;
+}
diff --git a/arch/mips/pci/fixup-tx4938.c b/arch/mips/pci/fixup-tx4938.c
deleted file mode 100644
index f2ba06ee0c1..00000000000
--- a/arch/mips/pci/fixup-tx4938.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Toshiba rbtx4938 pci routines
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
- */
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include <asm/tx4938/rbtx4938.h>
-
-extern struct pci_controller tx4938_pci_controller[];
-
-static int pci_get_irq(const struct pci_dev *dev, int pin)
-{
-        int irq = pin;
-        u8 slot = PCI_SLOT(dev->devfn);
-        struct pci_controller *controller = (struct pci_controller *)dev->sysdata;
-
-        if (controller == &tx4938_pci_controller[1]) {
-                /* TX4938 PCIC1 */
-                switch (slot) {
-                case TX4938_PCIC_IDSEL_AD_TO_SLOT(31):
-                        if (tx4938_ccfgptr->pcfg & TX4938_PCFG_ETH0_SEL)
-                                return RBTX4938_IRQ_IRC + TX4938_IR_ETH0;
-                        break;
-                case TX4938_PCIC_IDSEL_AD_TO_SLOT(30):
-                        if (tx4938_ccfgptr->pcfg & TX4938_PCFG_ETH1_SEL)
-                                return RBTX4938_IRQ_IRC + TX4938_IR_ETH1;
-                        break;
-                }
-                return 0;
-        }
-
-        /* IRQ rotation */
-        irq--;  /* 0-3 */
-        if (dev->bus->parent == NULL &&
-            (slot == TX4938_PCIC_IDSEL_AD_TO_SLOT(23))) {
-                /* PCI CardSlot (IDSEL=A23) */
-                /* PCIA => PCIA (IDSEL=A23) */
-                irq = (irq + 0 + slot) % 4;
-        } else {
-                /* PCI Backplane */
-                irq = (irq + 33 - slot) % 4;
-        }
-        irq++;  /* 1-4 */
-
-        switch (irq) {
-        case 1:
-                irq = RBTX4938_IRQ_IOC_PCIA;
-                break;
-        case 2:
-                irq = RBTX4938_IRQ_IOC_PCIB;
-                break;
-        case 3:
-                irq = RBTX4938_IRQ_IOC_PCIC;
-                break;
-        case 4:
-                irq = RBTX4938_IRQ_IOC_PCID;
-                break;
-        }
-        return irq;
-}
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-        unsigned char irq = 0;
-
-        irq = pci_get_irq(dev, pin);
-
-        printk(KERN_INFO "PCI: 0x%02x:0x%02x(0x%02x,0x%02x) IRQ=%d\n",
-               dev->bus->number, dev->devfn, PCI_SLOT(dev->devfn),
-               PCI_FUNC(dev->devfn), irq);
-
-        return irq;
-}
-
-/*
- * Do platform specific device initialization at pci_enable_device() time
- */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
-        return 0;
-}
-
diff --git a/arch/mips/pci/fixup-vr4133.c b/arch/mips/pci/fixup-vr4133.c
deleted file mode 100644
index de5e5f6bbf4..00000000000
--- a/arch/mips/pci/fixup-vr4133.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * arch/mips/pci/fixup-vr4133.c
- *
- * The NEC CMB-VR4133 Board specific PCI fixups.
- *
- * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
- *         Alex Sapkov <asapkov@ru.mvista.com>
- *
- * 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Modified for support in 2.6
- * Author: Manish Lachwani (mlachwani@mvista.com)
- *
- */
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-
-#include <asm/io.h>
-#include <asm/i8259.h>
-#include <asm/vr41xx/cmbvr4133.h>
-
-extern int vr4133_rockhopper;
-extern void ali_m1535plus_init(struct pci_dev *dev);
-extern void ali_m5229_init(struct pci_dev *dev);
-
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
-        /*
-         * We have to reset AMD PCnet adapter on Rockhopper since
-         * PMON leaves it enabled and generating interrupts. This leads
-         * to a lock if some PCI device driver later enables the IRQ line
-         * shared with PCnet and there is no AMD PCnet driver to catch its
-         * interrupts.
-         */
-#ifdef CONFIG_ROCKHOPPER
-        if (dev->vendor == PCI_VENDOR_ID_AMD &&
-                dev->device == PCI_DEVICE_ID_AMD_LANCE) {
-                inl(pci_resource_start(dev, 0) + 0x18);
-        }
-#endif
-
-        /*
-         * we have to open the bridges' windows down to 0 because otherwise
-         * we cannot access ISA south bridge I/O registers that get mapped from
-         * 0. for example, 8259 PIC would be unaccessible without that
-         */
-        if(dev->vendor == PCI_VENDOR_ID_INTEL && dev->device == PCI_DEVICE_ID_INTEL_S21152BB) {
-                pci_write_config_byte(dev, PCI_IO_BASE, 0);
-                if(dev->bus->number == 0) {
-                        pci_write_config_word(dev, PCI_IO_BASE_UPPER16, 0);
-                } else {
-                        pci_write_config_word(dev, PCI_IO_BASE_UPPER16, 1);
-                }
-        }
-
-        return 0;
-}
-
-/*
- * M1535 IRQ mapping
- * Feel free to change this, although it shouldn't be needed
- */
-#define M1535_IRQ_INTA  7
-#define M1535_IRQ_INTB  9
-#define M1535_IRQ_INTC  10
-#define M1535_IRQ_INTD  11
-
-#define M1535_IRQ_USB   9
-#define M1535_IRQ_IDE   14
-#define M1535_IRQ_IDE2  15
-#define M1535_IRQ_PS2   12
-#define M1535_IRQ_RTC   8
-#define M1535_IRQ_FDC   6
-#define M1535_IRQ_AUDIO 5
-#define M1535_IRQ_COM1  4
-#define M1535_IRQ_COM2  4
-#define M1535_IRQ_IRDA  3
-#define M1535_IRQ_KBD   1
-#define M1535_IRQ_TMR   0
-
-/* Rockhopper "slots" assignment; this is hard-coded ... */
-#define ROCKHOPPER_M5451_SLOT  1
-#define ROCKHOPPER_M1535_SLOT  2
-#define ROCKHOPPER_M5229_SLOT  11
-#define ROCKHOPPER_M5237_SLOT  15
-#define ROCKHOPPER_PMU_SLOT    12
-/* ... and hard-wired. */
-#define ROCKHOPPER_PCI1_SLOT   3
-#define ROCKHOPPER_PCI2_SLOT   4
-#define ROCKHOPPER_PCI3_SLOT   5
-#define ROCKHOPPER_PCI4_SLOT   6
-#define ROCKHOPPER_PCNET_SLOT  1
-
-#define M1535_IRQ_MASK(n) (1 << (n))
-
-#define M1535_IRQ_EDGE  (M1535_IRQ_MASK(M1535_IRQ_TMR)  | \
-                         M1535_IRQ_MASK(M1535_IRQ_KBD)  | \
-                         M1535_IRQ_MASK(M1535_IRQ_COM1) | \
-                         M1535_IRQ_MASK(M1535_IRQ_COM2) | \
-                         M1535_IRQ_MASK(M1535_IRQ_IRDA) | \
-                         M1535_IRQ_MASK(M1535_IRQ_RTC)  | \
-                         M1535_IRQ_MASK(M1535_IRQ_FDC)  | \
-                         M1535_IRQ_MASK(M1535_IRQ_PS2))
-
-#define M1535_IRQ_LEVEL (M1535_IRQ_MASK(M1535_IRQ_IDE)  | \
-                         M1535_IRQ_MASK(M1535_IRQ_USB)  | \
-                         M1535_IRQ_MASK(M1535_IRQ_INTA) | \
-                         M1535_IRQ_MASK(M1535_IRQ_INTB) | \
-                         M1535_IRQ_MASK(M1535_IRQ_INTC) | \
-                         M1535_IRQ_MASK(M1535_IRQ_INTD))
-
-struct irq_map_entry {
-        u16 bus;
-        u8 slot;
-        u8 irq;
-};
-static struct irq_map_entry int_map[] = {
-        {1, ROCKHOPPER_M5451_SLOT, M1535_IRQ_AUDIO},    /* Audio controller */
-        {1, ROCKHOPPER_PCI1_SLOT, M1535_IRQ_INTD},      /* PCI slot #1 */
-        {1, ROCKHOPPER_PCI2_SLOT, M1535_IRQ_INTC},      /* PCI slot #2 */
-        {1, ROCKHOPPER_M5237_SLOT, M1535_IRQ_USB},      /* USB host controller */
-        {1, ROCKHOPPER_M5229_SLOT, IDE_PRIMARY_IRQ},    /* IDE controller */
-        {2, ROCKHOPPER_PCNET_SLOT, M1535_IRQ_INTD},     /* AMD Am79c973 on-board
-                                                           ethernet */
-        {2, ROCKHOPPER_PCI3_SLOT, M1535_IRQ_INTB},      /* PCI slot #3 */
-        {2, ROCKHOPPER_PCI4_SLOT, M1535_IRQ_INTC}       /* PCI slot #4 */
-};
-
-static int pci_intlines[] =
-    { M1535_IRQ_INTA, M1535_IRQ_INTB, M1535_IRQ_INTC, M1535_IRQ_INTD };
-
-/* Determine the Rockhopper IRQ line number for the PCI device */
-int rockhopper_get_irq(struct pci_dev *dev, u8 pin, u8 slot)
-{
-        struct pci_bus *bus;
-        int i;
-
-        bus = dev->bus;
-        if (bus == NULL)
-                return -1;
-
-        for (i = 0; i < ARRAY_SIZE(int_map); i++) {
-                if (int_map[i].bus == bus->number && int_map[i].slot == slot) {
-                        int line;
-                        for (line = 0; line < 4; line++)
-                                if (pci_intlines[line] == int_map[i].irq)
-                                        break;
-                        if (line < 4)
-                                return pci_intlines[(line + (pin - 1)) % 4];
-                        else
-                                return int_map[i].irq;
-                }
-        }
-        return -1;
-}
-
-#ifdef CONFIG_ROCKHOPPER
-void i8259_init(void)
-{
-        init_i8259_irqs();
-
-        outb(0x00, 0x4d0);
-        outb(0x02, 0x4d1);      /* USB IRQ9 is level */
-}
-#endif
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-        extern int pci_probe_only;
-        pci_probe_only = 1;
-
-#ifdef CONFIG_ROCKHOPPER
-        if( dev->bus->number == 1 && vr4133_rockhopper )  {
-                if(slot == ROCKHOPPER_PCI1_SLOT || slot == ROCKHOPPER_PCI2_SLOT)
-                        dev->irq = CMBVR41XX_INTA_IRQ;
-                else
-                        dev->irq = rockhopper_get_irq(dev, pin, slot);
-        } else
-                dev->irq = CMBVR41XX_INTA_IRQ;
-#else
-        dev->irq = CMBVR41XX_INTA_IRQ;
-#endif
-
-        return dev->irq;
-}
-
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, ali_m1535plus_init);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229, ali_m5229_init);
-
-
diff --git a/arch/mips/pci/ops-mace.c b/arch/mips/pci/ops-mace.c
index e95881897ec..1cfb5588699 100644
--- a/arch/mips/pci/ops-mace.c
+++ b/arch/mips/pci/ops-mace.c
@@ -61,6 +61,13 @@ mace_pci_read_config(struct pci_bus *bus, unsigned int devfn,
         /* ack possible master abort */
         mace->pci.error &= ~MACEPCI_ERROR_MASTER_ABORT;
         mace->pci.control = control;
+        /*
+         * someone forgot to set the ultra bit for the onboard
+         * scsi chips; we fake it here
+         */
+        if (bus->number == 0 && reg == 0x40 && size == 4 &&
+            (devfn == (1 << 3) || devfn == (2 << 3)))
+                *val |= 0x1000;
 
         DPRINTK("read%d: reg=%08x,val=%02x\n", size * 8, reg, *val);
 
diff --git a/arch/mips/pci/ops-tx3927.c b/arch/mips/pci/ops-tx3927.c
index aa698bd0d5e..8a17a39e5bf 100644
--- a/arch/mips/pci/ops-tx3927.c
+++ b/arch/mips/pci/ops-tx3927.c
@@ -8,7 +8,7 @@
  *
  * Based on arch/mips/ddb5xxx/ddb5477/pci_ops.c
  *
- *     Define the pci_ops for JMR3927.
+ *     Define the pci_ops for TX3927.
  *
  * Much of the code is derived from the original DDB5074 port by
  * Geert Uytterhoeven <geert@sonycom.com>
@@ -39,7 +39,7 @@
 #include <linux/init.h>
 
 #include <asm/addrspace.h>
-#include <asm/jmr3927/jmr3927.h>
+#include <asm/txx9/tx3927.h>
 
 static inline int mkaddr(unsigned char bus, unsigned char dev_fn,
         unsigned char where)
@@ -68,7 +68,7 @@ static inline int check_abort(void)
         return PCIBIOS_SUCCESSFUL;
 }
 
-static int jmr3927_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+static int tx3927_pci_read_config(struct pci_bus *bus, unsigned int devfn,
         int where, int size, u32 * val)
 {
         int ret;
@@ -94,7 +94,7 @@ static int jmr3927_pci_read_config(struct pci_bus *bus, unsigned int devfn,
         return check_abort();
 }
 
-static int jmr3927_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+static int tx3927_pci_write_config(struct pci_bus *bus, unsigned int devfn,
         int where, int size, u32 val)
 {
         int ret;
@@ -125,7 +125,80 @@ static int jmr3927_pci_write_config(struct pci_bus *bus, unsigned int devfn,
         return check_abort();
 }
 
-struct pci_ops jmr3927_pci_ops = {
-        jmr3927_pci_read_config,
-        jmr3927_pci_write_config,
+static struct pci_ops tx3927_pci_ops = {
+        .read = tx3927_pci_read_config,
+        .write = tx3927_pci_write_config,
 };
+
+void __init tx3927_pcic_setup(struct pci_controller *channel,
+                              unsigned long sdram_size, int extarb)
+{
+        unsigned long flags;
+        unsigned long io_base =
+                channel->io_resource->start + mips_io_port_base - IO_BASE;
+        unsigned long io_size =
+                channel->io_resource->end - channel->io_resource->start;
+        unsigned long io_pciaddr =
+                channel->io_resource->start - channel->io_offset;
+        unsigned long mem_base =
+                channel->mem_resource->start;
+        unsigned long mem_size =
+                channel->mem_resource->end - channel->mem_resource->start;
+        unsigned long mem_pciaddr =
+                channel->mem_resource->start - channel->mem_offset;
+
+        printk(KERN_INFO "TX3927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s",
+               tx3927_pcicptr->did, tx3927_pcicptr->vid,
+               tx3927_pcicptr->rid,
+               extarb ? "External" : "Internal");
+        channel->pci_ops = &tx3927_pci_ops;
+
+        local_irq_save(flags);
+        /* Disable External PCI Config. Access */
+        tx3927_pcicptr->lbc = TX3927_PCIC_LBC_EPCAD;
+#ifdef __BIG_ENDIAN
+        tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_IBSE |
+                TX3927_PCIC_LBC_TIBSE |
+                TX3927_PCIC_LBC_TMFBSE | TX3927_PCIC_LBC_MSDSE;
+#endif
+        /* LB->PCI mappings */
+        tx3927_pcicptr->iomas = ~(io_size - 1);
+        tx3927_pcicptr->ilbioma = io_base;
+        tx3927_pcicptr->ipbioma = io_pciaddr;
+        tx3927_pcicptr->mmas = ~(mem_size - 1);
+        tx3927_pcicptr->ilbmma = mem_base;
+        tx3927_pcicptr->ipbmma = mem_pciaddr;
+        /* PCI->LB mappings */
+        tx3927_pcicptr->iobas = 0xffffffff;
+        tx3927_pcicptr->ioba = 0;
+        tx3927_pcicptr->tlbioma = 0;
+        tx3927_pcicptr->mbas = ~(sdram_size - 1);
+        tx3927_pcicptr->mba = 0;
+        tx3927_pcicptr->tlbmma = 0;
+        /* Enable Direct mapping Address Space Decoder */
+        tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_ILMDE | TX3927_PCIC_LBC_ILIDE;
+
+        /* Clear All Local Bus Status */
+        tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
+        /* Enable All Local Bus Interrupts */
+        tx3927_pcicptr->lbim = TX3927_PCIC_LBIM_ALL;
+        /* Clear All PCI Status Error */
+        tx3927_pcicptr->pcistat = TX3927_PCIC_PCISTATIM_ALL;
+        /* Enable All PCI Status Error Interrupts */
+        tx3927_pcicptr->pcistatim = TX3927_PCIC_PCISTATIM_ALL;
+
+        /* PCIC Int => IRC IRQ10 */
+        tx3927_pcicptr->il = TX3927_IR_PCI;
+        /* Target Control (per errata) */
+        tx3927_pcicptr->tc = TX3927_PCIC_TC_OF8E | TX3927_PCIC_TC_IF8E;
+
+        /* Enable Bus Arbiter */
+        if (!extarb)
+                tx3927_pcicptr->pbapmc = TX3927_PCIC_PBAPMC_PBAEN;
+
+        tx3927_pcicptr->pcicmd = PCI_COMMAND_MASTER |
+                PCI_COMMAND_MEMORY |
+                PCI_COMMAND_IO |
+                PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
+        local_irq_restore(flags);
+}
diff --git a/arch/mips/pci/ops-tx4927.c b/arch/mips/pci/ops-tx4927.c
index 150419c8b41..c6b49bccd27 100644
--- a/arch/mips/pci/ops-tx4927.c
+++ b/arch/mips/pci/ops-tx4927.c
@@ -1,209 +1,408 @@
 /*
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- *              ahennessy@mvista.com
+ * Define the pci_ops for the PCIC on Toshiba TX4927, TX4938, etc.
  *
- * Copyright (C) 2000-2001 Toshiba Corporation
- * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
- *
- * Based on arch/mips/ddb5xxx/ddb5477/pci_ops.c
- *
- *     Define the pci_ops for the Toshiba rbtx4927
- *
- * Much of the code is derived from the original DDB5074 port by
- * Geert Uytterhoeven <geert@sonycom.com>
- *
- * Copyright 2004 MontaVista Software Inc.
- * Author: Manish Lachwani (mlachwani@mvista.com)
- *
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
+ * Based on linux/arch/mips/pci/ops-tx4938.c,
+ *          linux/arch/mips/pci/fixup-rbtx4938.c,
+ *          linux/arch/mips/txx9/rbtx4938/setup.c,
+ *          and RBTX49xx patch from CELF patch archive.
  *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
  *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
  */
-#include <linux/types.h>
-#include <linux/pci.h>
 #include <linux/kernel.h>
-#include <linux/init.h>
-
-#include <asm/addrspace.h>
-#include <asm/byteorder.h>
-#include <asm/tx4927/tx4927_pci.h>
-
-/* initialize in setup */
-struct resource pci_io_resource = {
-        .name   = "TX4927 PCI IO SPACE",
-        .start  = 0x1000,
-        .end    = (0x1000 + (TX4927_PCIIO_SIZE)) - 1,
-        .flags  = IORESOURCE_IO
-};
+#include <asm/txx9/tx4927pcic.h>
 
-/* initialize in setup */
-struct resource pci_mem_resource = {
-        .name   = "TX4927 PCI MEM SPACE",
-        .start  = TX4927_PCIMEM,
-        .end    = TX4927_PCIMEM + TX4927_PCIMEM_SIZE - 1,
-        .flags  = IORESOURCE_MEM
-};
+static struct {
+        struct pci_controller *channel;
+        struct tx4927_pcic_reg __iomem *pcicptr;
+} pcicptrs[2];  /* TX4938 has 2 pcic */
+
+static void __init set_tx4927_pcicptr(struct pci_controller *channel,
+                                      struct tx4927_pcic_reg __iomem *pcicptr)
+{
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+                if (pcicptrs[i].channel == channel) {
+                        pcicptrs[i].pcicptr = pcicptr;
+                        return;
+                }
+        }
+        for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+                if (!pcicptrs[i].channel) {
+                        pcicptrs[i].channel = channel;
+                        pcicptrs[i].pcicptr = pcicptr;
+                        return;
+                }
+        }
+        BUG();
+}
 
-static int mkaddr(int bus, int dev_fn, int where, int *flagsp)
+struct tx4927_pcic_reg __iomem *get_tx4927_pcicptr(
+        struct pci_controller *channel)
 {
-        if (bus > 0) {
-                /* Type 1 configuration */
-                tx4927_pcicptr->g2pcfgadrs = ((bus & 0xff) << 0x10) |
-                    ((dev_fn & 0xff) << 0x08) | (where & 0xfc) | 1;
-        } else {
-                if (dev_fn >= PCI_DEVFN(TX4927_PCIC_MAX_DEVNU, 0))
-                        return -1;
+        int i;
 
-                /* Type 0 configuration */
-                tx4927_pcicptr->g2pcfgadrs = ((bus & 0xff) << 0x10) |
-                    ((dev_fn & 0xff) << 0x08) | (where & 0xfc);
+        for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+                if (pcicptrs[i].channel == channel)
+                        return pcicptrs[i].pcicptr;
         }
+        return NULL;
+}
+
+static int mkaddr(struct pci_bus *bus, unsigned int devfn, int where,
+                  struct tx4927_pcic_reg __iomem *pcicptr)
+{
+        if (bus->parent == NULL &&
+            devfn >= PCI_DEVFN(TX4927_PCIC_MAX_DEVNU, 0))
+                return -1;
+        __raw_writel(((bus->number & 0xff) << 0x10)
+                     | ((devfn & 0xff) << 0x08) | (where & 0xfc)
+                     | (bus->parent ? 1 : 0),
+                     &pcicptr->g2pcfgadrs);
         /* clear M_ABORT and Disable M_ABORT Int. */
-        tx4927_pcicptr->pcistatus =
-            (tx4927_pcicptr->pcistatus & 0x0000ffff) |
-            (PCI_STATUS_REC_MASTER_ABORT << 16);
-        tx4927_pcicptr->pcimask &= ~PCI_STATUS_REC_MASTER_ABORT;
+        __raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff)
+                     | (PCI_STATUS_REC_MASTER_ABORT << 16),
+                     &pcicptr->pcistatus);
         return 0;
 }
 
-static int check_abort(int flags)
+static int check_abort(struct tx4927_pcic_reg __iomem *pcicptr)
 {
         int code = PCIBIOS_SUCCESSFUL;
-        if (tx4927_pcicptr->
-            pcistatus & (PCI_STATUS_REC_MASTER_ABORT << 16)) {
-                tx4927_pcicptr->pcistatus =
-                    (tx4927_pcicptr->
-                     pcistatus & 0x0000ffff) | (PCI_STATUS_REC_MASTER_ABORT
-                                                << 16);
-                tx4927_pcicptr->pcimask |= PCI_STATUS_REC_MASTER_ABORT;
+
+        /* wait write cycle completion before checking error status */
+        while (__raw_readl(&pcicptr->pcicstatus) & TX4927_PCIC_PCICSTATUS_IWB)
+                ;
+        if (__raw_readl(&pcicptr->pcistatus)
+            & (PCI_STATUS_REC_MASTER_ABORT << 16)) {
+                __raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff)
+                             | (PCI_STATUS_REC_MASTER_ABORT << 16),
+                             &pcicptr->pcistatus);
                 code = PCIBIOS_DEVICE_NOT_FOUND;
         }
         return code;
 }
 
-static int tx4927_pcibios_read_config(struct pci_bus *bus, unsigned int devfn, int where,
-                int size, u32 * val)
+static u8 icd_readb(int offset, struct tx4927_pcic_reg __iomem *pcicptr)
+{
+#ifdef __BIG_ENDIAN
+        offset ^= 3;
+#endif
+        return __raw_readb((void __iomem *)&pcicptr->g2pcfgdata + offset);
+}
+static u16 icd_readw(int offset, struct tx4927_pcic_reg __iomem *pcicptr)
+{
+#ifdef __BIG_ENDIAN
+        offset ^= 2;
+#endif
+        return __raw_readw((void __iomem *)&pcicptr->g2pcfgdata + offset);
+}
+static u32 icd_readl(struct tx4927_pcic_reg __iomem *pcicptr)
+{
+        return __raw_readl(&pcicptr->g2pcfgdata);
+}
+static void icd_writeb(u8 val, int offset,
+                       struct tx4927_pcic_reg __iomem *pcicptr)
+{
+#ifdef __BIG_ENDIAN
+        offset ^= 3;
+#endif
+        __raw_writeb(val, (void __iomem *)&pcicptr->g2pcfgdata + offset);
+}
+static void icd_writew(u16 val, int offset,
+                       struct tx4927_pcic_reg __iomem *pcicptr)
+{
+#ifdef __BIG_ENDIAN
+        offset ^= 2;
+#endif
+        __raw_writew(val, (void __iomem *)&pcicptr->g2pcfgdata + offset);
+}
+static void icd_writel(u32 val, struct tx4927_pcic_reg __iomem *pcicptr)
 {
-        int flags, retval, dev, busno, func;
+        __raw_writel(val, &pcicptr->g2pcfgdata);
+}
 
-        busno = bus->number;
-        dev = PCI_SLOT(devfn);
-        func = PCI_FUNC(devfn);
+static struct tx4927_pcic_reg __iomem *pci_bus_to_pcicptr(struct pci_bus *bus)
+{
+        struct pci_controller *channel = bus->sysdata;
+        return get_tx4927_pcicptr(channel);
+}
 
-        /* check if the bus is top-level */
-        if (bus->parent != NULL) {
-                busno = bus->number;
-        } else {
-                busno = 0;
-        }
+static int tx4927_pci_config_read(struct pci_bus *bus, unsigned int devfn,
+                                  int where, int size, u32 *val)
+{
+        struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(bus);
 
-        if (mkaddr(busno, devfn, where, &flags))
+        if (mkaddr(bus, devfn, where, pcicptr)) {
+                *val = 0xffffffff;
                 return -1;
-
+        }
         switch (size) {
         case 1:
-                *val = *(volatile u8 *) ((unsigned long) & tx4927_pcicptr->
-                              g2pcfgdata |
-#ifdef __LITTLE_ENDIAN
-                                                (where & 3));
-#else
-                                                ((where & 0x3) ^ 0x3));
-#endif
+                *val = icd_readb(where & 3, pcicptr);
                 break;
         case 2:
-                *val = *(volatile u16 *) ((unsigned long) & tx4927_pcicptr->
-                               g2pcfgdata |
-#ifdef __LITTLE_ENDIAN
-                                                (where & 3));
-#else
-                                                ((where & 0x3) ^ 0x2));
-#endif
-                break;
-        case 4:
-                *val = tx4927_pcicptr->g2pcfgdata;
+                *val = icd_readw(where & 3, pcicptr);
                 break;
+        default:
+                *val = icd_readl(pcicptr);
         }
+        return check_abort(pcicptr);
+}
 
-        retval = check_abort(flags);
-        if (retval == PCIBIOS_DEVICE_NOT_FOUND)
-                *val = 0xffffffff;
+static int tx4927_pci_config_write(struct pci_bus *bus, unsigned int devfn,
+                                   int where, int size, u32 val)
+{
+        struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(bus);
 
-        return retval;
+        if (mkaddr(bus, devfn, where, pcicptr))
+                return -1;
+        switch (size) {
+        case 1:
+                icd_writeb(val, where & 3, pcicptr);
+                break;
+        case 2:
+                icd_writew(val, where & 3, pcicptr);
+                break;
+        default:
+                icd_writel(val, pcicptr);
+        }
+        return check_abort(pcicptr);
 }
 
-static int tx4927_pcibios_write_config(struct pci_bus *bus, unsigned int devfn, int where,
-                                int size, u32 val)
+static struct pci_ops tx4927_pci_ops = {
+        .read = tx4927_pci_config_read,
+        .write = tx4927_pci_config_write,
+};
+
+static struct {
+        u8 trdyto;
+        u8 retryto;
+        u16 gbwc;
+} tx4927_pci_opts __devinitdata = {
+        .trdyto = 0,
+        .retryto = 0,
+        .gbwc = 0xfe0,  /* 4064 GBUSCLK for CCFG.GTOT=0b11 */
+};
+
+void __init tx4927_pcic_setup(struct tx4927_pcic_reg __iomem *pcicptr,
+                              struct pci_controller *channel, int extarb)
 {
-        int flags, dev, busno, func;
-        busno = bus->number;
-        dev = PCI_SLOT(devfn);
-        func = PCI_FUNC(devfn);
+        int i;
+        unsigned long flags;
 
-        /* check if the bus is top-level */
-        if (bus->parent != NULL) {
-                busno = bus->number;
-        } else {
-                busno = 0;
-        }
+        set_tx4927_pcicptr(channel, pcicptr);
 
-        if (mkaddr(busno, devfn, where, &flags))
-                return -1;
+        if (!channel->pci_ops)
+                printk(KERN_INFO
+                       "PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
+                       __raw_readl(&pcicptr->pciid) >> 16,
+                       __raw_readl(&pcicptr->pciid) & 0xffff,
+                       __raw_readl(&pcicptr->pciccrev) & 0xff,
+                        extarb ? "External" : "Internal");
+        channel->pci_ops = &tx4927_pci_ops;
 
-        switch (size) {
-        case 1:
-                 *(volatile u8 *) ((unsigned long) & tx4927_pcicptr->
-                          g2pcfgdata |
-#ifdef __LITTLE_ENDIAN
-                                        (where & 3)) = val;
+        local_irq_save(flags);
+
+        /* Disable All Initiator Space */
+        __raw_writel(__raw_readl(&pcicptr->pciccfg)
+                     & ~(TX4927_PCIC_PCICCFG_G2PMEN(0)
+                         | TX4927_PCIC_PCICCFG_G2PMEN(1)
+                         | TX4927_PCIC_PCICCFG_G2PMEN(2)
+                         | TX4927_PCIC_PCICCFG_G2PIOEN),
+                     &pcicptr->pciccfg);
+
+        /* GB->PCI mappings */
+        __raw_writel((channel->io_resource->end - channel->io_resource->start)
+                     >> 4,
+                     &pcicptr->g2piomask);
+        ____raw_writeq((channel->io_resource->start +
+                        channel->io_map_base - IO_BASE) |
+#ifdef __BIG_ENDIAN
+                       TX4927_PCIC_G2PIOGBASE_ECHG
 #else
-                                        ((where & 0x3) ^ 0x3)) = val;
+                       TX4927_PCIC_G2PIOGBASE_BSDIS
 #endif
-                break;
-
-        case 2:
-                *(volatile u16 *) ((unsigned long) & tx4927_pcicptr->
-                           g2pcfgdata |
-#ifdef __LITTLE_ENDIAN
-                                        (where & 3)) = val;
+                       , &pcicptr->g2piogbase);
+        ____raw_writeq(channel->io_resource->start - channel->io_offset,
+                       &pcicptr->g2piopbase);
+        for (i = 0; i < 3; i++) {
+                __raw_writel(0, &pcicptr->g2pmmask[i]);
+                ____raw_writeq(0, &pcicptr->g2pmgbase[i]);
+                ____raw_writeq(0, &pcicptr->g2pmpbase[i]);
+        }
+        if (channel->mem_resource->end) {
+                __raw_writel((channel->mem_resource->end
+                              - channel->mem_resource->start) >> 4,
+                             &pcicptr->g2pmmask[0]);
+                ____raw_writeq(channel->mem_resource->start |
+#ifdef __BIG_ENDIAN
+                               TX4927_PCIC_G2PMnGBASE_ECHG
 #else
-                                        ((where & 0x3) ^ 0x2)) = val;
+                               TX4927_PCIC_G2PMnGBASE_BSDIS
 #endif
-                break;
-        case 4:
-                tx4927_pcicptr->g2pcfgdata = val;
-                break;
+                               , &pcicptr->g2pmgbase[0]);
+                ____raw_writeq(channel->mem_resource->start -
+                               channel->mem_offset,
+                               &pcicptr->g2pmpbase[0]);
+        }
+        /* PCI->GB mappings (I/O 256B) */
+        __raw_writel(0, &pcicptr->p2giopbase); /* 256B */
+        ____raw_writeq(0, &pcicptr->p2giogbase);
+        /* PCI->GB mappings (MEM 512MB (64MB on R1.x)) */
+        __raw_writel(0, &pcicptr->p2gm0plbase);
+        __raw_writel(0, &pcicptr->p2gm0pubase);
+        ____raw_writeq(TX4927_PCIC_P2GMnGBASE_TMEMEN |
+#ifdef __BIG_ENDIAN
+                       TX4927_PCIC_P2GMnGBASE_TECHG
+#else
+                       TX4927_PCIC_P2GMnGBASE_TBSDIS
+#endif
+                       , &pcicptr->p2gmgbase[0]);
+        /* PCI->GB mappings (MEM 16MB) */
+        __raw_writel(0xffffffff, &pcicptr->p2gm1plbase);
+        __raw_writel(0xffffffff, &pcicptr->p2gm1pubase);
+        ____raw_writeq(0, &pcicptr->p2gmgbase[1]);
+        /* PCI->GB mappings (MEM 1MB) */
+        __raw_writel(0xffffffff, &pcicptr->p2gm2pbase); /* 1MB */
+        ____raw_writeq(0, &pcicptr->p2gmgbase[2]);
+
+        /* Clear all (including IRBER) except for GBWC */
+        __raw_writel((tx4927_pci_opts.gbwc << 16)
+                     & TX4927_PCIC_PCICCFG_GBWC_MASK,
+                     &pcicptr->pciccfg);
+        /* Enable Initiator Memory Space */
+        if (channel->mem_resource->end)
+                __raw_writel(__raw_readl(&pcicptr->pciccfg)
+                             | TX4927_PCIC_PCICCFG_G2PMEN(0),
+                             &pcicptr->pciccfg);
+        /* Enable Initiator I/O Space */
+        if (channel->io_resource->end)
+                __raw_writel(__raw_readl(&pcicptr->pciccfg)
+                             | TX4927_PCIC_PCICCFG_G2PIOEN,
+                             &pcicptr->pciccfg);
+        /* Enable Initiator Config */
+        __raw_writel(__raw_readl(&pcicptr->pciccfg)
+                     | TX4927_PCIC_PCICCFG_ICAEN | TX4927_PCIC_PCICCFG_TCAR,
+                     &pcicptr->pciccfg);
+
+        /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
+        __raw_writel(0, &pcicptr->pcicfg1);
+
+        __raw_writel((__raw_readl(&pcicptr->g2ptocnt) & ~0xffff)
+                     | (tx4927_pci_opts.trdyto & 0xff)
+                     | ((tx4927_pci_opts.retryto & 0xff) << 8),
+                     &pcicptr->g2ptocnt);
+
+        /* Clear All Local Bus Status */
+        __raw_writel(TX4927_PCIC_PCICSTATUS_ALL, &pcicptr->pcicstatus);
+        /* Enable All Local Bus Interrupts */
+        __raw_writel(TX4927_PCIC_PCICSTATUS_ALL, &pcicptr->pcicmask);
+        /* Clear All Initiator Status */
+        __raw_writel(TX4927_PCIC_G2PSTATUS_ALL, &pcicptr->g2pstatus);
+        /* Enable All Initiator Interrupts */
+        __raw_writel(TX4927_PCIC_G2PSTATUS_ALL, &pcicptr->g2pmask);
+        /* Clear All PCI Status Error */
+        __raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff)
+                     | (TX4927_PCIC_PCISTATUS_ALL << 16),
+                     &pcicptr->pcistatus);
+        /* Enable All PCI Status Error Interrupts */
+        __raw_writel(TX4927_PCIC_PCISTATUS_ALL, &pcicptr->pcimask);
+
+        if (!extarb) {
+                /* Reset Bus Arbiter */
+                __raw_writel(TX4927_PCIC_PBACFG_RPBA, &pcicptr->pbacfg);
+                __raw_writel(0, &pcicptr->pbabm);
+                /* Enable Bus Arbiter */
+                __raw_writel(TX4927_PCIC_PBACFG_PBAEN, &pcicptr->pbacfg);
         }
 
-        return check_abort(flags);
+        __raw_writel(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY
+                     | PCI_COMMAND_PARITY | PCI_COMMAND_SERR,
+                     &pcicptr->pcistatus);
+        local_irq_restore(flags);
+
+        printk(KERN_DEBUG
+               "PCI: COMMAND=%04x,PCIMASK=%04x,"
+               "TRDYTO=%02x,RETRYTO=%02x,GBWC=%03x\n",
+               __raw_readl(&pcicptr->pcistatus) & 0xffff,
+               __raw_readl(&pcicptr->pcimask) & 0xffff,
+               __raw_readl(&pcicptr->g2ptocnt) & 0xff,
+               (__raw_readl(&pcicptr->g2ptocnt) & 0xff00) >> 8,
+               (__raw_readl(&pcicptr->pciccfg) >> 16) & 0xfff);
 }
 
-struct pci_ops tx4927_pci_ops = {
-        tx4927_pcibios_read_config,
-        tx4927_pcibios_write_config
-};
+static void tx4927_report_pcic_status1(struct tx4927_pcic_reg __iomem *pcicptr)
+{
+        __u16 pcistatus = (__u16)(__raw_readl(&pcicptr->pcistatus) >> 16);
+        __u32 g2pstatus = __raw_readl(&pcicptr->g2pstatus);
+        __u32 pcicstatus = __raw_readl(&pcicptr->pcicstatus);
+        static struct {
+                __u32 flag;
+                const char *str;
+        } pcistat_tbl[] = {
+                { PCI_STATUS_DETECTED_PARITY,   "DetectedParityError" },
+                { PCI_STATUS_SIG_SYSTEM_ERROR,  "SignaledSystemError" },
+                { PCI_STATUS_REC_MASTER_ABORT,  "ReceivedMasterAbort" },
+                { PCI_STATUS_REC_TARGET_ABORT,  "ReceivedTargetAbort" },
+                { PCI_STATUS_SIG_TARGET_ABORT,  "SignaledTargetAbort" },
+                { PCI_STATUS_PARITY,    "MasterParityError" },
+        }, g2pstat_tbl[] = {
+                { TX4927_PCIC_G2PSTATUS_TTOE,   "TIOE" },
+                { TX4927_PCIC_G2PSTATUS_RTOE,   "RTOE" },
+        }, pcicstat_tbl[] = {
+                { TX4927_PCIC_PCICSTATUS_PME,   "PME" },
+                { TX4927_PCIC_PCICSTATUS_TLB,   "TLB" },
+                { TX4927_PCIC_PCICSTATUS_NIB,   "NIB" },
+                { TX4927_PCIC_PCICSTATUS_ZIB,   "ZIB" },
+                { TX4927_PCIC_PCICSTATUS_PERR,  "PERR" },
+                { TX4927_PCIC_PCICSTATUS_SERR,  "SERR" },
+                { TX4927_PCIC_PCICSTATUS_GBE,   "GBE" },
+                { TX4927_PCIC_PCICSTATUS_IWB,   "IWB" },
+        };
+        int i, cont;
 
-/*
- * h/w only supports devices 0x00 to 0x14
- */
-struct pci_controller tx4927_controller = {
-        .pci_ops        = &tx4927_pci_ops,
-        .io_resource    = &pci_io_resource,
-        .mem_resource   = &pci_mem_resource,
-};
+        printk(KERN_ERR "");
+        if (pcistatus & TX4927_PCIC_PCISTATUS_ALL) {
+                printk(KERN_CONT "pcistat:%04x(", pcistatus);
+                for (i = 0, cont = 0; i < ARRAY_SIZE(pcistat_tbl); i++)
+                        if (pcistatus & pcistat_tbl[i].flag)
+                                printk(KERN_CONT "%s%s",
+                                       cont++ ? " " : "", pcistat_tbl[i].str);
+                printk(KERN_CONT ") ");
+        }
+        if (g2pstatus & TX4927_PCIC_G2PSTATUS_ALL) {
+                printk(KERN_CONT "g2pstatus:%08x(", g2pstatus);
+                for (i = 0, cont = 0; i < ARRAY_SIZE(g2pstat_tbl); i++)
+                        if (g2pstatus & g2pstat_tbl[i].flag)
+                                printk(KERN_CONT "%s%s",
+                                       cont++ ? " " : "", g2pstat_tbl[i].str);
+                printk(KERN_CONT ") ");
+        }
+        if (pcicstatus & TX4927_PCIC_PCICSTATUS_ALL) {
+                printk(KERN_CONT "pcicstatus:%08x(", pcicstatus);
+                for (i = 0, cont = 0; i < ARRAY_SIZE(pcicstat_tbl); i++)
+                        if (pcicstatus & pcicstat_tbl[i].flag)
+                                printk(KERN_CONT "%s%s",
+                                       cont++ ? " " : "", pcicstat_tbl[i].str);
+                printk(KERN_CONT ")");
+        }
+        printk(KERN_CONT "\n");
+}
+
+void tx4927_report_pcic_status(void)
+{
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+                if (pcicptrs[i].pcicptr)
+                        tx4927_report_pcic_status1(pcicptrs[i].pcicptr);
+        }
+}
diff --git a/arch/mips/pci/ops-tx4938.c b/arch/mips/pci/ops-tx4938.c
deleted file mode 100644
index a450c406203..00000000000
--- a/arch/mips/pci/ops-tx4938.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * Define the pci_ops for the Toshiba rbtx4938
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
- */
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include <asm/addrspace.h>
-#include <asm/tx4938/rbtx4938.h>
-
-/* initialize in setup */
-struct resource pci_io_resource = {
-        .name   = "pci IO space",
-        .start  = 0,
-        .end    = 0,
-        .flags  = IORESOURCE_IO
-};
-
-/* initialize in setup */
-struct resource pci_mem_resource = {
-        .name   = "pci memory space",
-        .start  = 0,
-        .end    = 0,
-        .flags  = IORESOURCE_MEM
-};
-
-struct resource tx4938_pcic1_pci_io_resource = {
-        .name   = "PCI1 IO",
-        .start  = 0,
-        .end    = 0,
-        .flags  = IORESOURCE_IO
-};
-struct resource tx4938_pcic1_pci_mem_resource = {
-        .name   = "PCI1 mem",
-        .start  = 0,
-        .end    = 0,
-        .flags  = IORESOURCE_MEM
-};
-
-static int mkaddr(int bus, int dev_fn, int where,
-                  struct tx4938_pcic_reg *pcicptr)
-{
-        if (bus > 0) {
-                /* Type 1 configuration */
-                pcicptr->g2pcfgadrs = ((bus & 0xff) << 0x10) |
-                    ((dev_fn & 0xff) << 0x08) | (where & 0xfc) | 1;
-        } else {
-                if (dev_fn >= PCI_DEVFN(TX4938_PCIC_MAX_DEVNU, 0))
-                        return -1;
-
-                /* Type 0 configuration */
-                pcicptr->g2pcfgadrs = ((bus & 0xff) << 0x10) |
-                    ((dev_fn & 0xff) << 0x08) | (where & 0xfc);
-        }
-        /* clear M_ABORT and Disable M_ABORT Int. */
-        pcicptr->pcistatus =
-            (pcicptr->pcistatus & 0x0000ffff) |
-            (PCI_STATUS_REC_MASTER_ABORT << 16);
-        pcicptr->pcimask &= ~PCI_STATUS_REC_MASTER_ABORT;
-
-        return 0;
-}
-
-static int check_abort(struct tx4938_pcic_reg *pcicptr)
-{
-        int code = PCIBIOS_SUCCESSFUL;
-        /* wait write cycle completion before checking error status */
-        while (pcicptr->pcicstatus & TX4938_PCIC_PCICSTATUS_IWB)
-                                ;
-        if (pcicptr->pcistatus & (PCI_STATUS_REC_MASTER_ABORT << 16)) {
-                pcicptr->pcistatus =
-                    (pcicptr->
-                     pcistatus & 0x0000ffff) | (PCI_STATUS_REC_MASTER_ABORT
-                                                << 16);
-                pcicptr->pcimask |= PCI_STATUS_REC_MASTER_ABORT;
-                code = PCIBIOS_DEVICE_NOT_FOUND;
-        }
-        return code;
-}
-
-extern struct pci_controller tx4938_pci_controller[];
-extern struct tx4938_pcic_reg *get_tx4938_pcicptr(int ch);
-
-static struct tx4938_pcic_reg *pci_bus_to_pcicptr(struct pci_bus *bus)
-{
-        struct pci_controller *channel = bus->sysdata;
-        return get_tx4938_pcicptr(channel - &tx4938_pci_controller[0]);
-}
-
-static int tx4938_pcibios_read_config(struct pci_bus *bus, unsigned int devfn,
-                                        int where, int size, u32 * val)
-{
-        int retval, dev, busno, func;
-        struct tx4938_pcic_reg *pcicptr = pci_bus_to_pcicptr(bus);
-        void __iomem *cfgdata =
-                (void __iomem *)(unsigned long)&pcicptr->g2pcfgdata;
-
-        dev = PCI_SLOT(devfn);
-        func = PCI_FUNC(devfn);
-
-        /* check if the bus is top-level */
-        if (bus->parent != NULL)
-                busno = bus->number;
-        else {
-                busno = 0;
-        }
-
-        if (mkaddr(busno, devfn, where, pcicptr))
-                return -1;
-
-        switch (size) {
-        case 1:
-#ifdef __BIG_ENDIAN
-                cfgdata += (where & 3) ^ 3;
-#else
-                cfgdata += where & 3;
-#endif
-                *val = __raw_readb(cfgdata);
-                break;
-        case 2:
-#ifdef __BIG_ENDIAN
-                cfgdata += (where & 2) ^ 2;
-#else
-                cfgdata += where & 2;
-#endif
-                *val = __raw_readw(cfgdata);
-                break;
-        case 4:
-                *val = __raw_readl(cfgdata);
-                break;
-        }
-
-        retval = check_abort(pcicptr);
-        if (retval == PCIBIOS_DEVICE_NOT_FOUND)
-                *val = 0xffffffff;
-
-        return retval;
-}
-
-static int tx4938_pcibios_write_config(struct pci_bus *bus, unsigned int devfn, int where,
-                                                int size, u32 val)
-{
-        int dev, busno, func;
-        struct tx4938_pcic_reg *pcicptr = pci_bus_to_pcicptr(bus);
-        void __iomem *cfgdata =
-                (void __iomem *)(unsigned long)&pcicptr->g2pcfgdata;
-
-        busno = bus->number;
-        dev = PCI_SLOT(devfn);
-        func = PCI_FUNC(devfn);
-
-        /* check if the bus is top-level */
-        if (bus->parent != NULL) {
-                busno = bus->number;
-        } else {
-                busno = 0;
-        }
-
-        if (mkaddr(busno, devfn, where, pcicptr))
-                return -1;
-
-        switch (size) {
-        case 1:
-#ifdef __BIG_ENDIAN
-                cfgdata += (where & 3) ^ 3;
-#else
-                cfgdata += where & 3;
-#endif
-                __raw_writeb(val, cfgdata);
-                break;
-        case 2:
-#ifdef __BIG_ENDIAN
-                cfgdata += (where & 2) ^ 2;
-#else
-                cfgdata += where & 2;
-#endif
-                __raw_writew(val, cfgdata);
-                break;
-        case 4:
-                __raw_writel(val, cfgdata);
-                break;
-        }
-
-        return check_abort(pcicptr);
-}
-
-struct pci_ops tx4938_pci_ops = {
-        tx4938_pcibios_read_config,
-        tx4938_pcibios_write_config
-};
-
-struct pci_controller tx4938_pci_controller[] = {
-        /* h/w only supports devices 0x00 to 0x14 */
-        {
-                .pci_ops        = &tx4938_pci_ops,
-                .io_resource    = &pci_io_resource,
-                .mem_resource   = &pci_mem_resource,
-        },
-        /* h/w only supports devices 0x00 to 0x14 */
-        {
-                .pci_ops        = &tx4938_pci_ops,
-                .io_resource    = &tx4938_pcic1_pci_io_resource,
-                .mem_resource   = &tx4938_pcic1_pci_mem_resource,
-        }
-};
diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c
index 87e2c8f54e2..a9060c77184 100644
--- a/arch/mips/pci/pci-bcm1480.c
+++ b/arch/mips/pci/pci-bcm1480.c
@@ -202,7 +202,6 @@ static int __init bcm1480_pcibios_init(void)
 {
         uint32_t cmdreg;
         uint64_t reg;
-        extern int pci_probe_only;
 
         /* CFE will assign PCI resources */
         pci_probe_only = 1;
@@ -254,8 +253,6 @@ static int __init bcm1480_pcibios_init(void)
                 ioremap(A_BCM1480_PHYS_PCI_IO_MATCH_BYTES, 65536);
         bcm1480_controller.io_map_base -= bcm1480_controller.io_offset;
         set_io_port_base(bcm1480_controller.io_map_base);
-        isa_slot_offset = (unsigned long)
-                ioremap(A_BCM1480_PHYS_PCI_MEM_MATCH_BYTES, 1024*1024);
 
         register_pci_controller(&bcm1480_controller);
 
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c
index a18516925cd..ce92f82b16d 100644
--- a/arch/mips/pci/pci-ip27.c
+++ b/arch/mips/pci/pci-ip27.c
@@ -47,7 +47,6 @@ int __cpuinit bridge_probe(nasid_t nasid, int widget_id, int masterwid)
         static int num_bridges = 0;
         bridge_t *bridge;
         int slot;
-        extern int pci_probe_only;
 
         pci_probe_only = 1;
 
diff --git a/arch/mips/pci/pci-jmr3927.c b/arch/mips/pci/pci-jmr3927.c
deleted file mode 100644
index cb84f4e8cca..00000000000
--- a/arch/mips/pci/pci-jmr3927.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- *              ahennessy@mvista.com
- *
- * Copyright (C) 2000-2001 Toshiba Corporation
- * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
- *
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include <asm/jmr3927/jmr3927.h>
-#include <asm/debug.h>
-
-struct resource pci_io_resource = {
-        .name   = "IO MEM",
-        .start  = 0x1000,                       /* reserve regacy I/O space */
-        .end    = 0x1000 + JMR3927_PCIIO_SIZE - 1,
-        .flags  = IORESOURCE_IO
-};
-
-struct resource pci_mem_resource = {
-        .name   = "PCI MEM",
-        .start  = JMR3927_PCIMEM,
-        .end    = JMR3927_PCIMEM + JMR3927_PCIMEM_SIZE - 1,
-        .flags  = IORESOURCE_MEM
-};
-
-extern struct pci_ops jmr3927_pci_ops;
-
-struct pci_controller jmr3927_controller = {
-        .pci_ops        = &jmr3927_pci_ops,
-        .io_resource    = &pci_io_resource,
-        .mem_resource   = &pci_mem_resource,
-        .mem_offset     = JMR3927_PCIMEM
-};
diff --git a/arch/mips/pci/pci-lasat.c b/arch/mips/pci/pci-lasat.c
index e70ae3236e0..a98e543a514 100644
--- a/arch/mips/pci/pci-lasat.c
+++ b/arch/mips/pci/pci-lasat.c
@@ -10,7 +10,7 @@
 #include <linux/pci.h>
 #include <linux/types.h>
 
-#include <asm/bootinfo.h>
+#include <asm/lasat/lasat.h>
 
 #include <irq.h>
 
@@ -39,16 +39,10 @@ static int __init lasat_pci_setup(void)
 {
         printk(KERN_DEBUG "PCI: starting\n");
 
-        switch (mips_machtype) {
-        case MACH_LASAT_100:
-                lasat_pci_controller.pci_ops = &gt64xxx_pci0_ops;
-                break;
-        case MACH_LASAT_200:
+        if (IS_LASAT_200())
                 lasat_pci_controller.pci_ops = &nile4_pci_ops;
-                break;
-        default:
-                panic("pcibios_init: mips_machtype incorrect");
-        }
+        else
+                lasat_pci_controller.pci_ops = &gt64xxx_pci0_ops;
 
         register_pci_controller(&lasat_pci_controller);
 
diff --git a/arch/mips/pci/pci-sb1250.c b/arch/mips/pci/pci-sb1250.c
index 2a09ad91ec8..bf639590b8b 100644
--- a/arch/mips/pci/pci-sb1250.c
+++ b/arch/mips/pci/pci-sb1250.c
@@ -210,7 +210,6 @@ static int __init sb1250_pcibios_init(void)
         void __iomem *io_map_base;
         uint32_t cmdreg;
         uint64_t reg;
-        extern int pci_probe_only;
 
         /* CFE will assign PCI resources */
         pci_probe_only = 1;
@@ -254,9 +253,6 @@ static int __init sb1250_pcibios_init(void)
          * works correctly with most of Linux's drivers.
          * XXX ehs: Should this happen in PCI Device mode?
          */
-        isa_slot_offset = (unsigned long)
-            ioremap(A_PHYS_LDTPCI_IO_MATCH_BYTES_32, 1024 * 1024);
-
         io_map_base = ioremap(A_PHYS_LDTPCI_IO_MATCH_BYTES, 1024 * 1024);
         sb1250_controller.io_map_base = io_map_base;
         set_io_port_base((unsigned long)io_map_base);
diff --git a/arch/mips/pci/pci-tx4927.c b/arch/mips/pci/pci-tx4927.c
new file mode 100644
index 00000000000..27e86a09dd4
--- /dev/null
+++ b/arch/mips/pci/pci-tx4927.c
@@ -0,0 +1,83 @@
+/*
+ * linux/arch/mips/pci/pci-tx4927.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ *          and RBTX49xx patch from CELF patch archive.
+ *
+ * Copyright 2001, 2003-2005 MontaVista Software Inc.
+ * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/tx4927.h>
+
+int __init tx4927_report_pciclk(void)
+{
+        int pciclk = 0;
+
+        printk(KERN_INFO "PCIC --%s PCICLK:",
+               (__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCI66) ?
+               " PCI66" : "");
+        if (__raw_readq(&tx4927_ccfgptr->pcfg) & TX4927_PCFG_PCICLKEN_ALL) {
+                u64 ccfg = __raw_readq(&tx4927_ccfgptr->ccfg);
+                switch ((unsigned long)ccfg &
+                        TX4927_CCFG_PCIDIVMODE_MASK) {
+                case TX4927_CCFG_PCIDIVMODE_2_5:
+                        pciclk = txx9_cpu_clock * 2 / 5; break;
+                case TX4927_CCFG_PCIDIVMODE_3:
+                        pciclk = txx9_cpu_clock / 3; break;
+                case TX4927_CCFG_PCIDIVMODE_5:
+                        pciclk = txx9_cpu_clock / 5; break;
+                case TX4927_CCFG_PCIDIVMODE_6:
+                        pciclk = txx9_cpu_clock / 6; break;
+                }
+                printk("Internal(%u.%uMHz)",
+                       (pciclk + 50000) / 1000000,
+                       ((pciclk + 50000) / 100000) % 10);
+        } else {
+                printk("External");
+                pciclk = -1;
+        }
+        printk("\n");
+        return pciclk;
+}
+
+int __init tx4927_pciclk66_setup(void)
+{
+        int pciclk;
+
+        /* Assert M66EN */
+        tx4927_ccfg_set(TX4927_CCFG_PCI66);
+        /* Double PCICLK (if possible) */
+        if (__raw_readq(&tx4927_ccfgptr->pcfg) & TX4927_PCFG_PCICLKEN_ALL) {
+                unsigned int pcidivmode = 0;
+                u64 ccfg = __raw_readq(&tx4927_ccfgptr->ccfg);
+                pcidivmode = (unsigned long)ccfg &
+                        TX4927_CCFG_PCIDIVMODE_MASK;
+                switch (pcidivmode) {
+                case TX4927_CCFG_PCIDIVMODE_5:
+                case TX4927_CCFG_PCIDIVMODE_2_5:
+                        pcidivmode = TX4927_CCFG_PCIDIVMODE_2_5;
+                        pciclk = txx9_cpu_clock * 2 / 5;
+                        break;
+                case TX4927_CCFG_PCIDIVMODE_6:
+                case TX4927_CCFG_PCIDIVMODE_3:
+                default:
+                        pcidivmode = TX4927_CCFG_PCIDIVMODE_3;
+                        pciclk = txx9_cpu_clock / 3;
+                }
+                tx4927_ccfg_change(TX4927_CCFG_PCIDIVMODE_MASK,
+                                   pcidivmode);
+                printk(KERN_DEBUG "PCICLK: ccfg:%08lx\n",
+                       (unsigned long)__raw_readq(&tx4927_ccfgptr->ccfg));
+        } else
+                pciclk = -1;
+        return pciclk;
+}
diff --git a/arch/mips/pci/pci-tx4938.c b/arch/mips/pci/pci-tx4938.c
new file mode 100644
index 00000000000..e5375511c2b
--- /dev/null
+++ b/arch/mips/pci/pci-tx4938.c
@@ -0,0 +1,134 @@
+/*
+ * linux/arch/mips/pci/pci-tx4938.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ *          and RBTX49xx patch from CELF patch archive.
+ *
+ * Copyright 2001, 2003-2005 MontaVista Software Inc.
+ * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/tx4938.h>
+
+int __init tx4938_report_pciclk(void)
+{
+        int pciclk = 0;
+
+        printk(KERN_INFO "PCIC --%s PCICLK:",
+               (__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCI66) ?
+               " PCI66" : "");
+        if (__raw_readq(&tx4938_ccfgptr->pcfg) & TX4938_PCFG_PCICLKEN_ALL) {
+                u64 ccfg = __raw_readq(&tx4938_ccfgptr->ccfg);
+                switch ((unsigned long)ccfg &
+                        TX4938_CCFG_PCIDIVMODE_MASK) {
+                case TX4938_CCFG_PCIDIVMODE_4:
+                        pciclk = txx9_cpu_clock / 4; break;
+                case TX4938_CCFG_PCIDIVMODE_4_5:
+                        pciclk = txx9_cpu_clock * 2 / 9; break;
+                case TX4938_CCFG_PCIDIVMODE_5:
+                        pciclk = txx9_cpu_clock / 5; break;
+                case TX4938_CCFG_PCIDIVMODE_5_5:
+                        pciclk = txx9_cpu_clock * 2 / 11; break;
+                case TX4938_CCFG_PCIDIVMODE_8:
+                        pciclk = txx9_cpu_clock / 8; break;
+                case TX4938_CCFG_PCIDIVMODE_9:
+                        pciclk = txx9_cpu_clock / 9; break;
+                case TX4938_CCFG_PCIDIVMODE_10:
+                        pciclk = txx9_cpu_clock / 10; break;
+                case TX4938_CCFG_PCIDIVMODE_11:
+                        pciclk = txx9_cpu_clock / 11; break;
+                }
+                printk("Internal(%u.%uMHz)",
+                       (pciclk + 50000) / 1000000,
+                       ((pciclk + 50000) / 100000) % 10);
+        } else {
+                printk("External");
+                pciclk = -1;
+        }
+        printk("\n");
+        return pciclk;
+}
+
+void __init tx4938_report_pci1clk(void)
+{
+        __u64 ccfg = __raw_readq(&tx4938_ccfgptr->ccfg);
+        unsigned int pciclk =
+                txx9_gbus_clock / ((ccfg & TX4938_CCFG_PCI1DMD) ? 4 : 2);
+
+        printk(KERN_INFO "PCIC1 -- %sPCICLK:%u.%uMHz\n",
+               (ccfg & TX4938_CCFG_PCI1_66) ? "PCI66 " : "",
+               (pciclk + 50000) / 1000000,
+               ((pciclk + 50000) / 100000) % 10);
+}
+
+int __init tx4938_pciclk66_setup(void)
+{
+        int pciclk;
+
+        /* Assert M66EN */
+        tx4938_ccfg_set(TX4938_CCFG_PCI66);
+        /* Double PCICLK (if possible) */
+        if (__raw_readq(&tx4938_ccfgptr->pcfg) & TX4938_PCFG_PCICLKEN_ALL) {
+                unsigned int pcidivmode = 0;
+                u64 ccfg = __raw_readq(&tx4938_ccfgptr->ccfg);
+                pcidivmode = (unsigned long)ccfg &
+                        TX4938_CCFG_PCIDIVMODE_MASK;
+                switch (pcidivmode) {
+                case TX4938_CCFG_PCIDIVMODE_8:
+                case TX4938_CCFG_PCIDIVMODE_4:
+                        pcidivmode = TX4938_CCFG_PCIDIVMODE_4;
+                        pciclk = txx9_cpu_clock / 4;
+                        break;
+                case TX4938_CCFG_PCIDIVMODE_9:
+                case TX4938_CCFG_PCIDIVMODE_4_5:
+                        pcidivmode = TX4938_CCFG_PCIDIVMODE_4_5;
+                        pciclk = txx9_cpu_clock * 2 / 9;
+                        break;
+                case TX4938_CCFG_PCIDIVMODE_10:
+                case TX4938_CCFG_PCIDIVMODE_5:
+                        pcidivmode = TX4938_CCFG_PCIDIVMODE_5;
+                        pciclk = txx9_cpu_clock / 5;
+                        break;
+                case TX4938_CCFG_PCIDIVMODE_11:
+                case TX4938_CCFG_PCIDIVMODE_5_5:
+                default:
+                        pcidivmode = TX4938_CCFG_PCIDIVMODE_5_5;
+                        pciclk = txx9_cpu_clock * 2 / 11;
+                        break;
+                }
+                tx4938_ccfg_change(TX4938_CCFG_PCIDIVMODE_MASK,
+                                   pcidivmode);
+                printk(KERN_DEBUG "PCICLK: ccfg:%08lx\n",
+                       (unsigned long)__raw_readq(&tx4938_ccfgptr->ccfg));
+        } else
+                pciclk = -1;
+        return pciclk;
+}
+
+int tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
+{
+        if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4938_pcic1ptr) {
+                switch (slot) {
+                case TX4927_PCIC_IDSEL_AD_TO_SLOT(31):
+                        if (__raw_readq(&tx4938_ccfgptr->pcfg) &
+                            TX4938_PCFG_ETH0_SEL)
+                                return TXX9_IRQ_BASE + TX4938_IR_ETH0;
+                        break;
+                case TX4927_PCIC_IDSEL_AD_TO_SLOT(30):
+                        if (__raw_readq(&tx4938_ccfgptr->pcfg) &
+                            TX4938_PCFG_ETH1_SEL)
+                                return TXX9_IRQ_BASE + TX4938_IR_ETH1;
+                        break;
+                }
+                return 0;
+        }
+        return -1;
+}
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 358ad621094..d7d6cb063d2 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -29,8 +29,7 @@ unsigned int pci_probe = PCI_ASSIGN_ALL_BUSSES;
  * The PCI controller list.
  */
 
-struct pci_controller *hose_head, **hose_tail = &hose_head;
-struct pci_controller *pci_isa_hose;
+static struct pci_controller *hose_head, **hose_tail = &hose_head;
 
 unsigned long PCIBIOS_MIN_IO    = 0x0000;
 unsigned long PCIBIOS_MIN_MEM   = 0;
diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c
index 35dc435846a..cf4c868715a 100644
--- a/arch/mips/pmc-sierra/yosemite/prom.c
+++ b/arch/mips/pmc-sierra/yosemite/prom.c
@@ -64,7 +64,7 @@ static void prom_exit(void)
 #ifdef CONFIG_SMP
         if (smp_processor_id())
                 /* CPU 1 */
-                smp_call_function(prom_cpu0_exit, NULL, 1, 1);
+                smp_call_function(prom_cpu0_exit, NULL, 1);
 #endif
         prom_cpu0_exit(NULL);
 }
diff --git a/arch/mips/sgi-ip22/ip22-mc.c b/arch/mips/sgi-ip22/ip22-mc.c
index 3f35d6367be..5268ac187bb 100644
--- a/arch/mips/sgi-ip22/ip22-mc.c
+++ b/arch/mips/sgi-ip22/ip22-mc.c
@@ -208,4 +208,30 @@ void __init sgimc_init(void)
 void __init prom_meminit(void) {}
 void __init prom_free_prom_memory(void)
 {
+#ifdef CONFIG_SGI_IP28
+        u32 mconfig1;
+        unsigned long flags;
+        spinlock_t lock;
+
+        /*
+         * because ARCS accesses memory uncached we wait until ARCS
+         * isn't needed any longer, before we switch from slow to
+         * normal mode
+         */
+        spin_lock_irqsave(&lock, flags);
+        mconfig1 = sgimc->mconfig1;
+        /* map ECC register */
+        sgimc->mconfig1 = (mconfig1 & 0xffff0000) | 0x2060;
+        iob();
+        /* switch to normal mode */
+        *(unsigned long *)PHYS_TO_XKSEG_UNCACHED(0x60000000) = 0;
+        iob();
+        /* reduce WR_COL */
+        sgimc->cmacc = (sgimc->cmacc & ~0xf) | 4;
+        iob();
+        /* restore old config */
+        sgimc->mconfig1 = mconfig1;
+        iob();
+        spin_unlock_irqrestore(&lock, flags);
+#endif
 }
diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c
index 28ffec8e5d1..fc6df96305e 100644
--- a/arch/mips/sgi-ip22/ip22-platform.c
+++ b/arch/mips/sgi-ip22/ip22-platform.c
@@ -175,3 +175,21 @@ static int __init sgiseeq_devinit(void)
 }
 
 device_initcall(sgiseeq_devinit);
+
+static int __init sgi_hal2_devinit(void)
+{
+        return IS_ERR(platform_device_register_simple("sgihal2", 0, NULL, 0));
+}
+
+device_initcall(sgi_hal2_devinit);
+
+static int __init sgi_button_devinit(void)
+{
+        if (ip22_is_fullhouse())
+                return 0; /* full house has no volume buttons */
+
+        return IS_ERR(platform_device_register_simple("sgiindybtns",
+                                                      -1, NULL, 0));
+}
+
+device_initcall(sgi_button_devinit);
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index a435b31cf03..4ad5c3393fd 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -39,7 +39,7 @@
 #define POWERDOWN_FREQ          (HZ / 4)
 #define PANIC_FREQ              (HZ / 8)
 
-static struct timer_list power_timer, blink_timer, debounce_timer, volume_timer;
+static struct timer_list power_timer, blink_timer, debounce_timer;
 
 #define MACHINE_PANICED         1
 #define MACHINE_SHUTTING_DOWN   2
@@ -139,36 +139,6 @@ static inline void power_button(void)
         add_timer(&power_timer);
 }
 
-void (*indy_volume_button)(int) = NULL;
-
-EXPORT_SYMBOL(indy_volume_button);
-
-static inline void volume_up_button(unsigned long data)
-{
-        del_timer(&volume_timer);
-
-        if (indy_volume_button)
-                indy_volume_button(1);
-
-        if (sgint->istat1 & SGINT_ISTAT1_PWR) {
-                volume_timer.expires = jiffies + (HZ / 100);
-                add_timer(&volume_timer);
-        }
-}
-
-static inline void volume_down_button(unsigned long data)
-{
-        del_timer(&volume_timer);
-
-        if (indy_volume_button)
-                indy_volume_button(-1);
-
-        if (sgint->istat1 & SGINT_ISTAT1_PWR) {
-                volume_timer.expires = jiffies + (HZ / 100);
-                add_timer(&volume_timer);
-        }
-}
-
 static irqreturn_t panel_int(int irq, void *dev_id)
 {
         unsigned int buttons;
@@ -190,25 +160,8 @@ static irqreturn_t panel_int(int irq, void *dev_id)
          * House. Only lowest 2 bits are used. Guiness uses upper four bits
          * for volume control". This is not true, all bits are pulled high
          * on fullhouse */
-        if (ip22_is_fullhouse() || !(buttons & SGIOC_PANEL_POWERINTR)) {
+        if (!(buttons & SGIOC_PANEL_POWERINTR))
                 power_button();
-                return IRQ_HANDLED;
-        }
-        /* TODO: mute/unmute */
-        /* Volume up button was pressed */
-        if (!(buttons & SGIOC_PANEL_VOLUPINTR)) {
-                init_timer(&volume_timer);
-                volume_timer.function = volume_up_button;
-                volume_timer.expires = jiffies + (HZ / 100);
-                add_timer(&volume_timer);
-        }
-        /* Volume down button was pressed */
-        if (!(buttons & SGIOC_PANEL_VOLDNINTR)) {
-                init_timer(&volume_timer);
-                volume_timer.function = volume_down_button;
-                volume_timer.expires = jiffies + (HZ / 100);
-                add_timer(&volume_timer);
-        }
 
         return IRQ_HANDLED;
 }
diff --git a/arch/mips/sgi-ip22/ip28-berr.c b/arch/mips/sgi-ip22/ip28-berr.c
index 30e12e2ec4b..fee7a2e0e53 100644
--- a/arch/mips/sgi-ip22/ip28-berr.c
+++ b/arch/mips/sgi-ip22/ip28-berr.c
@@ -412,7 +412,7 @@ static int ip28_be_interrupt(const struct pt_regs *regs)
          * Now we have an asynchronous bus error, speculatively or DMA caused.
          * Need to search all DMA descriptors for the error address.
          */
-        for (i = 0; i < sizeof(hpc3)/sizeof(struct hpc3_stat); ++i) {
+        for (i = 0; i < ARRAY_SIZE(hpc3); ++i) {
                 struct hpc3_stat *hp = (struct hpc3_stat *)&hpc3 + i;
                 if ((cpu_err_stat & CPU_ERRMASK) &&
                     (cpu_err_addr == hp->ndptr || cpu_err_addr == hp->cbp))
@@ -421,7 +421,7 @@ static int ip28_be_interrupt(const struct pt_regs *regs)
                     (gio_err_addr == hp->ndptr || gio_err_addr == hp->cbp))
                         break;
         }
-        if (i < sizeof(hpc3)/sizeof(struct hpc3_stat)) {
+        if (i < ARRAY_SIZE(hpc3)) {
                 struct hpc3_stat *hp = (struct hpc3_stat *)&hpc3 + i;
                 printk(KERN_ERR "at DMA addresses: HPC3 @ %08lx:"
                        " ctl %08x, ndp %08x, cbp %08x\n",
diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
index b0a25e1ee8b..64459e7d891 100644
--- a/arch/mips/sgi-ip27/ip27-nmi.c
+++ b/arch/mips/sgi-ip27/ip27-nmi.c
@@ -1,4 +1,3 @@
-#include <linux/kallsyms.h>
 #include <linux/kernel.h>
 #include <linux/mmzone.h>
 #include <linux/nodemask.h>
@@ -84,13 +83,10 @@ void nmi_cpu_eframe_save(nasid_t nasid, int slice)
         /*
          * Saved cp0 registers
          */
-        printk("epc   : %016lx ", nr->epc);
-        print_symbol("%s ", nr->epc);
+        printk("epc   : %016lx %pS\n", nr->epc, (void *) nr->epc);
         printk("%s\n", print_tainted());
-        printk("ErrEPC: %016lx ", nr->error_epc);
-        print_symbol("%s\n", nr->error_epc);
-        printk("ra    : %016lx ", nr->gpr[31]);
-        print_symbol("%s\n", nr->gpr[31]);
+        printk("ErrEPC: %016lx %pS\n", nr->error_epc, (void *) nr->error_epc);
+        printk("ra    : %016lx %pS\n", nr->gpr[31], (void *) nr->gpr[31]);
         printk("Status: %08lx         ", nr->sr);
 
         if (nr->sr & ST0_KX)
diff --git a/arch/mips/sgi-ip32/ip32-platform.c b/arch/mips/sgi-ip32/ip32-platform.c
index 89a71f49b69..2ee401ba0b2 100644
--- a/arch/mips/sgi-ip32/ip32-platform.c
+++ b/arch/mips/sgi-ip32/ip32-platform.c
@@ -65,6 +65,42 @@ static __init int meth_devinit(void)
 
 device_initcall(meth_devinit);
 
+static __init int sgio2audio_devinit(void)
+{
+        struct platform_device *pd;
+        int ret;
+
+        pd = platform_device_alloc("sgio2audio", -1);
+        if (!pd)
+                return -ENOMEM;
+
+        ret = platform_device_add(pd);
+        if (ret)
+                platform_device_put(pd);
+
+        return ret;
+}
+
+device_initcall(sgio2audio_devinit);
+
+static __init int sgio2btns_devinit(void)
+{
+        struct platform_device *pd;
+        int ret;
+
+        pd = platform_device_alloc("sgio2btns", -1);
+        if (!pd)
+                return -ENOMEM;
+
+        ret = platform_device_add(pd);
+        if (ret)
+                platform_device_put(pd);
+
+        return ret;
+}
+
+device_initcall(sgio2btns_devinit);
+
 MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("8250 UART probe driver for SGI IP32 aka O2");
diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c
index 33fce826f8b..fd9604d5555 100644
--- a/arch/mips/sibyte/cfe/setup.c
+++ b/arch/mips/sibyte/cfe/setup.c
@@ -74,7 +74,7 @@ static void __noreturn cfe_linux_exit(void *arg)
                 if (!reboot_smp) {
                         /* Get CPU 0 to do the cfe_exit */
                         reboot_smp = 1;
-                        smp_call_function(cfe_linux_exit, arg, 1, 0);
+                        smp_call_function(cfe_linux_exit, arg, 0);
                 }
         } else {
                 printk("Passing control back to CFE...\n");
diff --git a/arch/mips/sibyte/sb1250/prom.c b/arch/mips/sibyte/sb1250/prom.c
index cf8f6b3de86..65b1af66b67 100644
--- a/arch/mips/sibyte/sb1250/prom.c
+++ b/arch/mips/sibyte/sb1250/prom.c
@@ -66,7 +66,7 @@ static void prom_linux_exit(void)
 {
 #ifdef CONFIG_SMP
         if (smp_processor_id()) {
-                smp_call_function(prom_cpu0_exit, NULL, 1, 1);
+                smp_call_function(prom_cpu0_exit, NULL, 1);
         }
 #endif
         while(1);
diff --git a/arch/mips/sibyte/swarm/Makefile b/arch/mips/sibyte/swarm/Makefile
index 1775755a261..255d692bfa1 100644
--- a/arch/mips/sibyte/swarm/Makefile
+++ b/arch/mips/sibyte/swarm/Makefile
@@ -1,3 +1,4 @@
 obj-y                           := setup.o rtc_xicor1241.o rtc_m41t81.o
 
+obj-$(CONFIG_I2C_BOARDINFO)     += swarm-i2c.o
 obj-$(CONFIG_KGDB)              += dbg_io.o
diff --git a/arch/mips/sibyte/swarm/swarm-i2c.c b/arch/mips/sibyte/swarm/swarm-i2c.c
new file mode 100644
index 00000000000..4282ac9d01d
--- /dev/null
+++ b/arch/mips/sibyte/swarm/swarm-i2c.c
@@ -0,0 +1,37 @@
+/*
+ *      arch/mips/sibyte/swarm/swarm-i2c.c
+ *
+ *      Broadcom BCM91250A (SWARM), etc. I2C platform setup.
+ *
+ *      Copyright (c) 2008  Maciej W. Rozycki
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+
+static struct i2c_board_info swarm_i2c_info1[] __initdata = {
+        {
+                I2C_BOARD_INFO("m41t81", 0x68),
+        },
+};
+
+static int __init swarm_i2c_init(void)
+{
+        int err;
+
+        err = i2c_register_board_info(1, swarm_i2c_info1,
+                                      ARRAY_SIZE(swarm_i2c_info1));
+        if (err < 0)
+                printk(KERN_ERR
+                       "swarm-i2c: cannot register board I2C devices\n");
+        return err;
+}
+
+arch_initcall(swarm_i2c_init);
diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c
index 5484e1c6205..a49272ce7ef 100644
--- a/arch/mips/sni/setup.c
+++ b/arch/mips/sni/setup.c
@@ -116,7 +116,6 @@ void __init plat_mem_setup(void)
         /*
          * Setup (E)ISA I/O memory access stuff
          */
-        isa_slot_offset = CKSEG1ADDR(0xb0000000);
 #ifdef CONFIG_EISA
         EISA_bus = 1;
 #endif
diff --git a/arch/mips/tx4927/Kconfig b/arch/mips/tx4927/Kconfig
deleted file mode 100644
index 5fbbe12e0fc..00000000000
--- a/arch/mips/tx4927/Kconfig
+++ /dev/null
@@ -1,3 +0,0 @@
-config TOSHIBA_FPCIB0
-        bool "FPCIB0 Backplane Support"
-        depends on TOSHIBA_RBTX4927
diff --git a/arch/mips/tx4927/common/Makefile b/arch/mips/tx4927/common/Makefile
deleted file mode 100644
index a7fe76a6496..00000000000
--- a/arch/mips/tx4927/common/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# Makefile for common code for Toshiba TX4927 based systems
-#
-
-obj-y   += tx4927_prom.o tx4927_irq.o
-
-obj-$(CONFIG_TOSHIBA_FPCIB0)       += smsc_fdc37m81x.o
-obj-$(CONFIG_KGDB)                 += tx4927_dbgio.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/Makefile b/arch/mips/tx4927/toshiba_rbtx4927/Makefile
deleted file mode 100644
index 13f96725d77..00000000000
--- a/arch/mips/tx4927/toshiba_rbtx4927/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-obj-y   += toshiba_rbtx4927_prom.o
-obj-y   += toshiba_rbtx4927_setup.o
-obj-y   += toshiba_rbtx4927_irq.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
deleted file mode 100644
index 6d31f2a98ab..00000000000
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
+++ /dev/null
@@ -1,428 +0,0 @@
-/*
- * linux/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
- *
- * Toshiba RBTX4927 specific interrupt handlers
- *
- * Author: MontaVista Software, Inc.
- *         source@mvista.com
- *
- * Copyright 2001-2002 MontaVista Software Inc.
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the
- *  Free Software Foundation; either version 2 of the License, or (at your
- *  option) any later version.
- *
- *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
-/*
-IRQ  Device
-00   RBTX4927-ISA/00
-01   RBTX4927-ISA/01 PS2/Keyboard
-02   RBTX4927-ISA/02 Cascade RBTX4927-ISA (irqs 8-15)
-03   RBTX4927-ISA/03
-04   RBTX4927-ISA/04
-05   RBTX4927-ISA/05
-06   RBTX4927-ISA/06
-07   RBTX4927-ISA/07
-08   RBTX4927-ISA/08
-09   RBTX4927-ISA/09
-10   RBTX4927-ISA/10
-11   RBTX4927-ISA/11
-12   RBTX4927-ISA/12 PS2/Mouse (not supported at this time)
-13   RBTX4927-ISA/13
-14   RBTX4927-ISA/14 IDE
-15   RBTX4927-ISA/15
-
-16   TX4927-CP0/00 Software 0
-17   TX4927-CP0/01 Software 1
-18   TX4927-CP0/02 Cascade TX4927-CP0
-19   TX4927-CP0/03 Multiplexed -- do not use
-20   TX4927-CP0/04 Multiplexed -- do not use
-21   TX4927-CP0/05 Multiplexed -- do not use
-22   TX4927-CP0/06 Multiplexed -- do not use
-23   TX4927-CP0/07 CPU TIMER
-
-24   TX4927-PIC/00
-25   TX4927-PIC/01
-26   TX4927-PIC/02
-27   TX4927-PIC/03 Cascade RBTX4927-IOC
-28   TX4927-PIC/04
-29   TX4927-PIC/05 RBTX4927 RTL-8019AS ethernet
-30   TX4927-PIC/06
-31   TX4927-PIC/07
-32   TX4927-PIC/08 TX4927 SerialIO Channel 0
-33   TX4927-PIC/09 TX4927 SerialIO Channel 1
-34   TX4927-PIC/10
-35   TX4927-PIC/11
-36   TX4927-PIC/12
-37   TX4927-PIC/13
-38   TX4927-PIC/14
-39   TX4927-PIC/15
-40   TX4927-PIC/16 TX4927 PCI PCI-C
-41   TX4927-PIC/17
-42   TX4927-PIC/18
-43   TX4927-PIC/19
-44   TX4927-PIC/20
-45   TX4927-PIC/21
-46   TX4927-PIC/22 TX4927 PCI PCI-ERR
-47   TX4927-PIC/23 TX4927 PCI PCI-PMA (not used)
-48   TX4927-PIC/24
-49   TX4927-PIC/25
-50   TX4927-PIC/26
-51   TX4927-PIC/27
-52   TX4927-PIC/28
-53   TX4927-PIC/29
-54   TX4927-PIC/30
-55   TX4927-PIC/31
-
-56 RBTX4927-IOC/00 FPCIB0 PCI-D PJ4/A PJ5/B SB/C PJ6/D PJ7/A (SouthBridge/NotUsed)        [RTL-8139=PJ4]
-57 RBTX4927-IOC/01 FPCIB0 PCI-C PJ4/D PJ5/A SB/B PJ6/C PJ7/D (SouthBridge/NotUsed)        [RTL-8139=PJ5]
-58 RBTX4927-IOC/02 FPCIB0 PCI-B PJ4/C PJ5/D SB/A PJ6/B PJ7/C (SouthBridge/IDE/pin=1,INTR) [RTL-8139=NotSupported]
-59 RBTX4927-IOC/03 FPCIB0 PCI-A PJ4/B PJ5/C SB/D PJ6/A PJ7/B (SouthBridge/USB/pin=4)      [RTL-8139=PJ6]
-60 RBTX4927-IOC/04
-61 RBTX4927-IOC/05
-62 RBTX4927-IOC/06
-63 RBTX4927-IOC/07
-
-NOTES:
-SouthBridge/INTR is mapped to SouthBridge/A=PCI-B/#58
-SouthBridge/ISA/pin=0 no pci irq used by this device
-SouthBridge/IDE/pin=1 no pci irq used by this device, using INTR via ISA IRQ14
-SouthBridge/USB/pin=4 using pci irq SouthBridge/D=PCI-A=#59
-SouthBridge/PMC/pin=0 no pci irq used by this device
-SuperIO/PS2/Keyboard, using INTR via ISA IRQ1
-SuperIO/PS2/Mouse, using INTR via ISA IRQ12 (mouse not currently supported)
-JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthBridge, JP4, JP5, JP6
-*/
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/timex.h>
-#include <asm/bootinfo.h>
-#include <asm/page.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/pci.h>
-#include <asm/processor.h>
-#include <asm/reboot.h>
-#include <asm/time.h>
-#include <asm/wbflush.h>
-#include <linux/bootmem.h>
-#include <linux/blkdev.h>
-#ifdef CONFIG_TOSHIBA_FPCIB0
-#include <asm/i8259.h>
-#include <asm/tx4927/smsc_fdc37m81x.h>
-#endif
-#include <asm/tx4927/toshiba_rbtx4927.h>
-
-
-#undef TOSHIBA_RBTX4927_IRQ_DEBUG
-
-#ifdef TOSHIBA_RBTX4927_IRQ_DEBUG
-#define TOSHIBA_RBTX4927_IRQ_NONE        0x00000000
-
-#define TOSHIBA_RBTX4927_IRQ_INFO          ( 1 <<  0 )
-#define TOSHIBA_RBTX4927_IRQ_WARN          ( 1 <<  1 )
-#define TOSHIBA_RBTX4927_IRQ_EROR          ( 1 <<  2 )
-
-#define TOSHIBA_RBTX4927_IRQ_IOC_INIT      ( 1 << 10 )
-#define TOSHIBA_RBTX4927_IRQ_IOC_ENABLE    ( 1 << 13 )
-#define TOSHIBA_RBTX4927_IRQ_IOC_DISABLE   ( 1 << 14 )
-
-#define TOSHIBA_RBTX4927_SETUP_ALL         0xffffffff
-#endif
-
-
-#ifdef TOSHIBA_RBTX4927_IRQ_DEBUG
-static const u32 toshiba_rbtx4927_irq_debug_flag =
-    (TOSHIBA_RBTX4927_IRQ_NONE | TOSHIBA_RBTX4927_IRQ_INFO |
-     TOSHIBA_RBTX4927_IRQ_WARN | TOSHIBA_RBTX4927_IRQ_EROR
-//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_INIT
-//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_ENABLE
-//                                                 | TOSHIBA_RBTX4927_IRQ_IOC_DISABLE
-    );
-#endif
-
-
-#ifdef TOSHIBA_RBTX4927_IRQ_DEBUG
-#define TOSHIBA_RBTX4927_IRQ_DPRINTK(flag,str...) \
-        if ( (toshiba_rbtx4927_irq_debug_flag) & (flag) ) \
-        { \
-           char tmp[100]; \
-           sprintf( tmp, str ); \
-           printk( "%s(%s:%u)::%s", __func__, __FILE__, __LINE__, tmp ); \
-        }
-#else
-#define TOSHIBA_RBTX4927_IRQ_DPRINTK(flag, str...)
-#endif
-
-
-
-
-#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG   0
-#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_END   7
-
-#define TOSHIBA_RBTX4927_IRQ_IOC_BEG  ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG) /* 56 */
-#define TOSHIBA_RBTX4927_IRQ_IOC_END  ((TX4927_IRQ_PIC_END+1)+TOSHIBA_RBTX4927_IRQ_IOC_RAW_END) /* 63 */
-
-#define TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC TX4927_IRQ_NEST_EXT_ON_PIC
-#define TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC (TOSHIBA_RBTX4927_IRQ_IOC_BEG+2)
-
-extern int tx4927_using_backplane;
-
-static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq);
-static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
-
-#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
-static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
-        .name = TOSHIBA_RBTX4927_IOC_NAME,
-        .ack = toshiba_rbtx4927_irq_ioc_disable,
-        .mask = toshiba_rbtx4927_irq_ioc_disable,
-        .mask_ack = toshiba_rbtx4927_irq_ioc_disable,
-        .unmask = toshiba_rbtx4927_irq_ioc_enable,
-};
-#define TOSHIBA_RBTX4927_IOC_INTR_ENAB (void __iomem *)0xbc002000UL
-#define TOSHIBA_RBTX4927_IOC_INTR_STAT (void __iomem *)0xbc002006UL
-
-
-u32 bit2num(u32 num)
-{
-        u32 i;
-
-        for (i = 0; i < (sizeof(num) * 8); i++) {
-                if (num & (1 << i)) {
-                        return (i);
-                }
-        }
-        return (0);
-}
-
-int toshiba_rbtx4927_irq_nested(int sw_irq)
-{
-        u32 level3;
-
-        level3 = readb(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
-        if (level3) {
-                sw_irq = TOSHIBA_RBTX4927_IRQ_IOC_BEG + bit2num(level3);
-                if (sw_irq != TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC) {
-                        goto RETURN;
-                }
-        }
-#ifdef CONFIG_TOSHIBA_FPCIB0
-        if (tx4927_using_backplane) {
-                int irq = i8259_irq();
-                if (irq >= 0)
-                        sw_irq = irq;
-        }
-#endif
-
-      RETURN:
-        return (sw_irq);
-}
-
-static struct irqaction toshiba_rbtx4927_irq_ioc_action = {
-        .handler        = no_action,
-        .flags          = IRQF_SHARED,
-        .mask           = CPU_MASK_NONE,
-        .name           = TOSHIBA_RBTX4927_IOC_NAME
-};
-
-
-/**********************************************************************************/
-/* Functions for ioc                                                              */
-/**********************************************************************************/
-
-
-static void __init toshiba_rbtx4927_irq_ioc_init(void)
-{
-        int i;
-
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_INIT,
-                                     "beg=%d end=%d\n",
-                                     TOSHIBA_RBTX4927_IRQ_IOC_BEG,
-                                     TOSHIBA_RBTX4927_IRQ_IOC_END);
-
-        for (i = TOSHIBA_RBTX4927_IRQ_IOC_BEG;
-             i <= TOSHIBA_RBTX4927_IRQ_IOC_END; i++)
-                set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type,
-                                         handle_level_irq);
-
-        setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC,
-                  &toshiba_rbtx4927_irq_ioc_action);
-}
-
-static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq)
-{
-        volatile unsigned char v;
-
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_ENABLE,
-                                     "irq=%d\n", irq);
-
-        if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
-            || irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
-                TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
-                                             "bad irq=%d\n", irq);
-                panic("\n");
-        }
-
-        v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
-        v |= (1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG));
-        writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB);
-}
-
-
-static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq)
-{
-        volatile unsigned char v;
-
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_DISABLE,
-                                     "irq=%d\n", irq);
-
-        if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
-            || irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
-                TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
-                                             "bad irq=%d\n", irq);
-                panic("\n");
-        }
-
-        v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
-        v &= ~(1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG));
-        writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB);
-        mmiowb();
-}
-
-
-void __init arch_init_irq(void)
-{
-        extern void tx4927_irq_init(void);
-
-        tx4927_irq_init();
-        toshiba_rbtx4927_irq_ioc_init();
-#ifdef CONFIG_TOSHIBA_FPCIB0
-        if (tx4927_using_backplane)
-                init_i8259_irqs();
-#endif
-        /* Onboard 10M Ether: High Active */
-        set_irq_type(RBTX4927_RTL_8019_IRQ, IRQF_TRIGGER_HIGH);
-
-        wbflush();
-}
-
-void toshiba_rbtx4927_irq_dump(char *key)
-{
-#ifdef TOSHIBA_RBTX4927_IRQ_DEBUG
-        {
-                u32 i, j = 0;
-                for (i = 0; i < NR_IRQS; i++) {
-                        if (strcmp(irq_desc[i].chip->name, "none")
-                            == 0)
-                                continue;
-
-                        if ((i >= 1)
-                            && (irq_desc[i - 1].chip->name ==
-                                irq_desc[i].chip->name)) {
-                                j++;
-                        } else {
-                                j = 0;
-                        }
-                        TOSHIBA_RBTX4927_IRQ_DPRINTK
-                            (TOSHIBA_RBTX4927_IRQ_INFO,
-                             "%s irq=0x%02x/%3d s=0x%08x h=0x%08x a=0x%08x ah=0x%08x d=%1d n=%s/%02d\n",
-                             key, i, i, irq_desc[i].status,
-                             (u32) irq_desc[i].chip,
-                             (u32) irq_desc[i].action,
-                             (u32) (irq_desc[i].action ? irq_desc[i].
-                                    action->handler : 0),
-                             irq_desc[i].depth,
-                             irq_desc[i].chip->name, j);
-                }
-        }
-#endif
-}
-
-void toshiba_rbtx4927_irq_dump_pics(char *s)
-{
-        u32 level0_m;
-        u32 level0_s;
-        u32 level1_m;
-        u32 level1_s;
-        u32 level2;
-        u32 level2_p;
-        u32 level2_s;
-        u32 level3_m;
-        u32 level3_s;
-        u32 level4_m;
-        u32 level4_s;
-        u32 level5_m;
-        u32 level5_s;
-
-        if (s == NULL)
-                s = "null";
-
-        level0_m = (read_c0_status() & 0x0000ff00) >> 8;
-        level0_s = (read_c0_cause() & 0x0000ff00) >> 8;
-
-        level1_m = level0_m;
-        level1_s = level0_s & 0x87;
-
-        level2 = __raw_readl((void __iomem *)0xff1ff6a0UL);
-        level2_p = (((level2 & 0x10000)) ? 0 : 1);
-        level2_s = (((level2 & 0x1f) == 0x1f) ? 0 : (level2 & 0x1f));
-
-        level3_m = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB) & 0x1f;
-        level3_s = readb(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
-
-        level4_m = inb(0x21);
-        outb(0x0A, 0x20);
-        level4_s = inb(0x20);
-
-        level5_m = inb(0xa1);
-        outb(0x0A, 0xa0);
-        level5_s = inb(0xa0);
-
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
-                                     "dump_raw_pic() ");
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
-                                     "cp0:m=0x%02x/s=0x%02x ", level0_m,
-                                     level0_s);
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
-                                     "cp0:m=0x%02x/s=0x%02x ", level1_m,
-                                     level1_s);
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
-                                     "pic:e=0x%02x/s=0x%02x ", level2_p,
-                                     level2_s);
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
-                                     "ioc:m=0x%02x/s=0x%02x ", level3_m,
-                                     level3_s);
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
-                                     "sbm:m=0x%02x/s=0x%02x ", level4_m,
-                                     level4_s);
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO,
-                                     "sbs:m=0x%02x/s=0x%02x ", level5_m,
-                                     level5_s);
-        TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO, "[%s]\n",
-                                     s);
-}
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
deleted file mode 100644
index f3f86857bea..00000000000
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_prom.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * rbtx4927 specific prom routines
- *
- * Author: MontaVista Software, Inc.
- *         source@mvista.com
- *
- * Copyright 2001-2002 MontaVista Software Inc.
- *
- * Copyright (C) 2004 MontaVista Software Inc.
- * Author: Manish Lachwani, mlachwani@mvista.com
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the
- *  Free Software Foundation; either version 2 of the License, or (at your
- *  option) any later version.
- *
- *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/bootmem.h>
-
-#include <asm/addrspace.h>
-#include <asm/bootinfo.h>
-#include <asm/cpu.h>
-#include <asm/tx4927/tx4927.h>
-
-void __init prom_init_cmdline(void)
-{
-        int argc = (int) fw_arg0;
-        char **argv = (char **) fw_arg1;
-        int i;                  /* Always ignore the "-c" at argv[0] */
-
-        /* ignore all built-in args if any f/w args given */
-        if (argc > 1) {
-                *arcs_cmdline = '\0';
-        }
-
-        for (i = 1; i < argc; i++) {
-                if (i != 1) {
-                        strcat(arcs_cmdline, " ");
-                }
-                strcat(arcs_cmdline, argv[i]);
-        }
-}
-
-void __init prom_init(void)
-{
-        extern int tx4927_get_mem_size(void);
-        extern char* toshiba_name;
-        int msize;
-
-        prom_init_cmdline();
-
-        if ((read_c0_prid() & 0xff) == PRID_REV_TX4927) {
-                mips_machtype = MACH_TOSHIBA_RBTX4927;
-                toshiba_name  = "TX4927";
-        } else {
-                mips_machtype = MACH_TOSHIBA_RBTX4937;
-                toshiba_name  = "TX4937";
-        }
-
-        msize = tx4927_get_mem_size();
-        add_memory_region(0, msize << 20, BOOT_MEM_RAM);
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
-
-const char *get_system_type(void)
-{
-        return "Toshiba RBTX4927/RBTX4937";
-}
-
-char * __init prom_getcmdline(void)
-{
-        return &(arcs_cmdline[0]);
-}
-
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
deleted file mode 100644
index 2203c77b2ce..00000000000
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
+++ /dev/null
@@ -1,1001 +0,0 @@
-/*
- * Toshiba rbtx4927 specific setup
- *
- * Author: MontaVista Software, Inc.
- *         source@mvista.com
- *
- * Copyright 2001-2002 MontaVista Software Inc.
- *
- * Copyright (C) 1996, 97, 2001, 04  Ralf Baechle (ralf@linux-mips.org)
- * Copyright (C) 2000 RidgeRun, Inc.
- * Author: RidgeRun, Inc.
- *   glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
- *
- * Copyright 2001 MontaVista Software Inc.
- * Author: jsun@mvista.com or jsun@junsun.net
- *
- * Copyright 2002 MontaVista Software Inc.
- * Author: Michael Pruznick, michael_pruznick@mvista.com
- *
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * Copyright (C) 2004 MontaVista Software Inc.
- * Author: Manish Lachwani, mlachwani@mvista.com
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the
- *  Free Software Foundation; either version 2 of the License, or (at your
- *  option) any later version.
- *
- *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/pm.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-
-#include <asm/bootinfo.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/reboot.h>
-#include <asm/time.h>
-#include <asm/txx9tmr.h>
-#ifdef CONFIG_TOSHIBA_FPCIB0
-#include <asm/tx4927/smsc_fdc37m81x.h>
-#endif
-#include <asm/tx4927/toshiba_rbtx4927.h>
-#ifdef CONFIG_PCI
-#include <asm/tx4927/tx4927_pci.h>
-#endif
-#ifdef CONFIG_SERIAL_TXX9
-#include <linux/serial_core.h>
-#endif
-
-#undef TOSHIBA_RBTX4927_SETUP_DEBUG
-
-#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-#define TOSHIBA_RBTX4927_SETUP_SETUP       ( 1 <<  4 )
-#define TOSHIBA_RBTX4927_SETUP_PCIBIOS     ( 1 <<  7 )
-#define TOSHIBA_RBTX4927_SETUP_PCI1        ( 1 <<  8 )
-#define TOSHIBA_RBTX4927_SETUP_PCI2        ( 1 <<  9 )
-
-#define TOSHIBA_RBTX4927_SETUP_ALL         0xffffffff
-#endif
-
-#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-static const u32 toshiba_rbtx4927_setup_debug_flag =
-    (TOSHIBA_RBTX4927_SETUP_SETUP |
-     | TOSHIBA_RBTX4927_SETUP_PCIBIOS | TOSHIBA_RBTX4927_SETUP_PCI1 |
-     TOSHIBA_RBTX4927_SETUP_PCI2);
-#endif
-
-#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-#define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag,str...) \
-        if ( (toshiba_rbtx4927_setup_debug_flag) & (flag) ) \
-        { \
-           char tmp[100]; \
-           sprintf( tmp, str ); \
-           printk( "%s(%s:%u)::%s", __func__, __FILE__, __LINE__, tmp ); \
-        }
-#else
-#define TOSHIBA_RBTX4927_SETUP_DPRINTK(flag, str...)
-#endif
-
-/* These functions are used for rebooting or halting the machine*/
-extern void toshiba_rbtx4927_restart(char *command);
-extern void toshiba_rbtx4927_halt(void);
-extern void toshiba_rbtx4927_power_off(void);
-
-int tx4927_using_backplane = 0;
-
-extern void toshiba_rbtx4927_irq_setup(void);
-
-char *prom_getcmdline(void);
-
-#ifdef CONFIG_PCI
-#undef TX4927_SUPPORT_COMMAND_IO
-#undef  TX4927_SUPPORT_PCI_66
-int tx4927_cpu_clock = 100000000;       /* 100MHz */
-unsigned long mips_pci_io_base;
-unsigned long mips_pci_io_size;
-unsigned long mips_pci_mem_base;
-unsigned long mips_pci_mem_size;
-/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
-unsigned long mips_pci_io_pciaddr = 0;
-unsigned long mips_memory_upper;
-static int tx4927_ccfg_toeon = 1;
-static int tx4927_pcic_trdyto = 0;      /* default: disabled */
-unsigned long tx4927_ce_base[8];
-void tx4927_reset_pci_pcic(void);
-int tx4927_pci66 = 0;           /* 0:auto */
-#endif
-
-char *toshiba_name = "";
-
-#ifdef CONFIG_PCI
-extern struct pci_controller tx4927_controller;
-
-static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
-                                    int top_bus, int busnr, int devfn)
-{
-        static struct pci_dev dev;
-        static struct pci_bus bus;
-
-        dev.sysdata = (void *)hose;
-        dev.devfn = devfn;
-        bus.number = busnr;
-        bus.ops = hose->pci_ops;
-        bus.parent = NULL;
-        dev.bus = &bus;
-
-        return &dev;
-}
-
-#define EARLY_PCI_OP(rw, size, type)                                    \
-static int early_##rw##_config_##size(struct pci_controller *hose,      \
-        int top_bus, int bus, int devfn, int offset, type value)        \
-{                                                                       \
-        return pci_##rw##_config_##size(                                \
-                fake_pci_dev(hose, top_bus, bus, devfn),                \
-                offset, value);                                         \
-}
-
-EARLY_PCI_OP(read, byte, u8 *)
-EARLY_PCI_OP(read, dword, u32 *)
-EARLY_PCI_OP(write, byte, u8)
-EARLY_PCI_OP(write, dword, u32)
-
-static int __init tx4927_pcibios_init(void)
-{
-        unsigned int id;
-        u32 pci_devfn;
-        int devfn_start = 0;
-        int devfn_stop = 0xff;
-        int busno = 0; /* One bus on the Toshiba */
-        struct pci_controller *hose = &tx4927_controller;
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                       "-\n");
-
-        for (pci_devfn = devfn_start; pci_devfn < devfn_stop; pci_devfn++) {
-                early_read_config_dword(hose, busno, busno, pci_devfn,
-                                        PCI_VENDOR_ID, &id);
-
-                if (id == 0xffffffff) {
-                        continue;
-                }
-
-                if (id == 0x94601055) {
-                        u8 v08_64;
-                        u32 v32_b0;
-                        u8 v08_e1;
-#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-                        char *s = " sb/isa --";
-#endif
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
-                             s);
-
-                        early_read_config_byte(hose, busno, busno,
-                                               pci_devfn, 0x64, &v08_64);
-                        early_read_config_dword(hose, busno, busno,
-                                                pci_devfn, 0xb0, &v32_b0);
-                        early_read_config_byte(hose, busno, busno,
-                                               pci_devfn, 0xe1, &v08_e1);
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s beg 0x64 = 0x%02x\n", s, v08_64);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s beg 0xb0 = 0x%02x\n", s, v32_b0);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s beg 0xe1 = 0x%02x\n", s, v08_e1);
-
-                        /* serial irq control */
-                        v08_64 = 0xd0;
-
-                        /* serial irq pin */
-                        v32_b0 |= 0x00010000;
-
-                        /* ide irq on isa14 */
-                        v08_e1 &= 0xf0;
-                        v08_e1 |= 0x0d;
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s mid 0x64 = 0x%02x\n", s, v08_64);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s mid 0xb0 = 0x%02x\n", s, v32_b0);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s mid 0xe1 = 0x%02x\n", s, v08_e1);
-
-                        early_write_config_byte(hose, busno, busno,
-                                                pci_devfn, 0x64, v08_64);
-                        early_write_config_dword(hose, busno, busno,
-                                                 pci_devfn, 0xb0, v32_b0);
-                        early_write_config_byte(hose, busno, busno,
-                                                pci_devfn, 0xe1, v08_e1);
-
-#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-                        {
-                                early_read_config_byte(hose, busno, busno,
-                                                       pci_devfn, 0x64,
-                                                       &v08_64);
-                                early_read_config_dword(hose, busno, busno,
-                                                        pci_devfn, 0xb0,
-                                                        &v32_b0);
-                                early_read_config_byte(hose, busno, busno,
-                                                       pci_devfn, 0xe1,
-                                                       &v08_e1);
-
-                                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                                    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                     ":%s end 0x64 = 0x%02x\n", s, v08_64);
-                                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                                    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                     ":%s end 0xb0 = 0x%02x\n", s, v32_b0);
-                                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                                    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                     ":%s end 0xe1 = 0x%02x\n", s, v08_e1);
-                        }
-#endif
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
-                             s);
-                }
-
-                if (id == 0x91301055) {
-                        u8 v08_04;
-                        u8 v08_09;
-                        u8 v08_41;
-                        u8 v08_43;
-                        u8 v08_5c;
-#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-                        char *s = " sb/ide --";
-#endif
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s beg\n",
-                             s);
-
-                        early_read_config_byte(hose, busno, busno,
-                                               pci_devfn, 0x04, &v08_04);
-                        early_read_config_byte(hose, busno, busno,
-                                               pci_devfn, 0x09, &v08_09);
-                        early_read_config_byte(hose, busno, busno,
-                                               pci_devfn, 0x41, &v08_41);
-                        early_read_config_byte(hose, busno, busno,
-                                               pci_devfn, 0x43, &v08_43);
-                        early_read_config_byte(hose, busno, busno,
-                                               pci_devfn, 0x5c, &v08_5c);
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s beg 0x04 = 0x%02x\n", s, v08_04);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s beg 0x09 = 0x%02x\n", s, v08_09);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s beg 0x41 = 0x%02x\n", s, v08_41);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s beg 0x43 = 0x%02x\n", s, v08_43);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s beg 0x5c = 0x%02x\n", s, v08_5c);
-
-                        /* enable ide master/io */
-                        v08_04 |= (PCI_COMMAND_MASTER | PCI_COMMAND_IO);
-
-                        /* enable ide native mode */
-                        v08_09 |= 0x05;
-
-                        /* enable primary ide */
-                        v08_41 |= 0x80;
-
-                        /* enable secondary ide */
-                        v08_43 |= 0x80;
-
-                        /*
-                         * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
-                         *
-                         * This line of code is intended to provide the user with a work
-                         * around solution to the anomalies cited in SMSC's anomaly sheet
-                         * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
-                         *
-                         * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
-                         */
-                        v08_5c |= 0x01;
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s mid 0x04 = 0x%02x\n", s, v08_04);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s mid 0x09 = 0x%02x\n", s, v08_09);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s mid 0x41 = 0x%02x\n", s, v08_41);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s mid 0x43 = 0x%02x\n", s, v08_43);
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                             ":%s mid 0x5c = 0x%02x\n", s, v08_5c);
-
-                        early_write_config_byte(hose, busno, busno,
-                                                pci_devfn, 0x5c, v08_5c);
-                        early_write_config_byte(hose, busno, busno,
-                                                pci_devfn, 0x04, v08_04);
-                        early_write_config_byte(hose, busno, busno,
-                                                pci_devfn, 0x09, v08_09);
-                        early_write_config_byte(hose, busno, busno,
-                                                pci_devfn, 0x41, v08_41);
-                        early_write_config_byte(hose, busno, busno,
-                                                pci_devfn, 0x43, v08_43);
-
-#ifdef TOSHIBA_RBTX4927_SETUP_DEBUG
-                        {
-                                early_read_config_byte(hose, busno, busno,
-                                                       pci_devfn, 0x04,
-                                                       &v08_04);
-                                early_read_config_byte(hose, busno, busno,
-                                                       pci_devfn, 0x09,
-                                                       &v08_09);
-                                early_read_config_byte(hose, busno, busno,
-                                                       pci_devfn, 0x41,
-                                                       &v08_41);
-                                early_read_config_byte(hose, busno, busno,
-                                                       pci_devfn, 0x43,
-                                                       &v08_43);
-                                early_read_config_byte(hose, busno, busno,
-                                                       pci_devfn, 0x5c,
-                                                       &v08_5c);
-
-                                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                                    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                     ":%s end 0x04 = 0x%02x\n", s, v08_04);
-                                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                                    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                     ":%s end 0x09 = 0x%02x\n", s, v08_09);
-                                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                                    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                     ":%s end 0x41 = 0x%02x\n", s, v08_41);
-                                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                                    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                     ":%s end 0x43 = 0x%02x\n", s, v08_43);
-                                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                                    (TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                     ":%s end 0x5c = 0x%02x\n", s, v08_5c);
-                        }
-#endif
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_PCIBIOS, ":%s end\n",
-                             s);
-                }
-
-        }
-
-        register_pci_controller(&tx4927_controller);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCIBIOS,
-                                       "+\n");
-
-        return 0;
-}
-
-arch_initcall(tx4927_pcibios_init);
-
-extern struct resource pci_io_resource;
-extern struct resource pci_mem_resource;
-
-void __init tx4927_pci_setup(void)
-{
-        static int called = 0;
-        extern unsigned int tx4927_get_mem_size(void);
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "-\n");
-
-        mips_memory_upper = tx4927_get_mem_size() << 20;
-        mips_memory_upper += KSEG0;
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=mips_memory_upper\n",
-                                       mips_memory_upper);
-        mips_pci_io_base = TX4927_PCIIO;
-        mips_pci_io_size = TX4927_PCIIO_SIZE;
-        mips_pci_mem_base = TX4927_PCIMEM;
-        mips_pci_mem_size = TX4927_PCIMEM_SIZE;
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=mips_pci_io_base\n",
-                                       mips_pci_io_base);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=mips_pci_io_size\n",
-                                       mips_pci_io_size);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=mips_pci_mem_base\n",
-                                       mips_pci_mem_base);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=mips_pci_mem_size\n",
-                                       mips_pci_mem_size);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=pci_io_resource.start\n",
-                                       pci_io_resource.start);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=pci_io_resource.end\n",
-                                       pci_io_resource.end);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=pci_mem_resource.start\n",
-                                       pci_mem_resource.start);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=pci_mem_resource.end\n",
-                                       pci_mem_resource.end);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       "0x%08lx=mips_io_port_base",
-                                       mips_io_port_base);
-        if (!called) {
-                printk
-                    ("%s PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
-                     toshiba_name,
-                     (unsigned short) (tx4927_pcicptr->pciid >> 16),
-                     (unsigned short) (tx4927_pcicptr->pciid & 0xffff),
-                     (unsigned short) (tx4927_pcicptr->pciccrev & 0xff),
-                     (!(tx4927_ccfgptr->
-                        ccfg & TX4927_CCFG_PCIXARB)) ? "External" :
-                     "Internal");
-                called = 1;
-        }
-        printk("%s PCIC --%s PCICLK:", toshiba_name,
-               (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : "");
-        if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
-                int pciclk = 0;
-                if (mips_machtype == MACH_TOSHIBA_RBTX4937)
-                        switch ((unsigned long) tx4927_ccfgptr->
-                                ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
-                        case TX4937_CCFG_PCIDIVMODE_4:
-                                pciclk = tx4927_cpu_clock / 4;
-                                break;
-                        case TX4937_CCFG_PCIDIVMODE_4_5:
-                                pciclk = tx4927_cpu_clock * 2 / 9;
-                                break;
-                        case TX4937_CCFG_PCIDIVMODE_5:
-                                pciclk = tx4927_cpu_clock / 5;
-                                break;
-                        case TX4937_CCFG_PCIDIVMODE_5_5:
-                                pciclk = tx4927_cpu_clock * 2 / 11;
-                                break;
-                        case TX4937_CCFG_PCIDIVMODE_8:
-                                pciclk = tx4927_cpu_clock / 8;
-                                break;
-                        case TX4937_CCFG_PCIDIVMODE_9:
-                                pciclk = tx4927_cpu_clock / 9;
-                                break;
-                        case TX4937_CCFG_PCIDIVMODE_10:
-                                pciclk = tx4927_cpu_clock / 10;
-                                break;
-                        case TX4937_CCFG_PCIDIVMODE_11:
-                                pciclk = tx4927_cpu_clock / 11;
-                                break;
-                        }
-
-                else
-                        switch ((unsigned long) tx4927_ccfgptr->
-                                ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
-                        case TX4927_CCFG_PCIDIVMODE_2_5:
-                                pciclk = tx4927_cpu_clock * 2 / 5;
-                                break;
-                        case TX4927_CCFG_PCIDIVMODE_3:
-                                pciclk = tx4927_cpu_clock / 3;
-                                break;
-                        case TX4927_CCFG_PCIDIVMODE_5:
-                                pciclk = tx4927_cpu_clock / 5;
-                                break;
-                        case TX4927_CCFG_PCIDIVMODE_6:
-                                pciclk = tx4927_cpu_clock / 6;
-                                break;
-                        }
-
-                printk("Internal(%dMHz)", pciclk / 1000000);
-        } else {
-                int pciclk = 0;
-                int pciclk_setting = *tx4927_pci_clk_ptr;
-                switch (pciclk_setting & TX4927_PCI_CLK_MASK) {
-                case TX4927_PCI_CLK_33:
-                        pciclk = 33333333;
-                        break;
-                case TX4927_PCI_CLK_25:
-                        pciclk = 25000000;
-                        break;
-                case TX4927_PCI_CLK_66:
-                        pciclk = 66666666;
-                        break;
-                case TX4927_PCI_CLK_50:
-                        pciclk = 50000000;
-                        break;
-                }
-                printk("External(%dMHz)", pciclk / 1000000);
-        }
-        printk("\n");
-
-
-
-        /* GB->PCI mappings */
-        tx4927_pcicptr->g2piomask = (mips_pci_io_size - 1) >> 4;
-        tx4927_pcicptr->g2piogbase = mips_pci_io_base |
-#ifdef __BIG_ENDIAN
-            TX4927_PCIC_G2PIOGBASE_ECHG
-#else
-            TX4927_PCIC_G2PIOGBASE_BSDIS
-#endif
-            ;
-
-        tx4927_pcicptr->g2piopbase = 0;
-
-        tx4927_pcicptr->g2pmmask[0] = (mips_pci_mem_size - 1) >> 4;
-        tx4927_pcicptr->g2pmgbase[0] = mips_pci_mem_base |
-#ifdef __BIG_ENDIAN
-            TX4927_PCIC_G2PMnGBASE_ECHG
-#else
-            TX4927_PCIC_G2PMnGBASE_BSDIS
-#endif
-            ;
-        tx4927_pcicptr->g2pmpbase[0] = mips_pci_mem_base;
-
-        tx4927_pcicptr->g2pmmask[1] = 0;
-        tx4927_pcicptr->g2pmgbase[1] = 0;
-        tx4927_pcicptr->g2pmpbase[1] = 0;
-        tx4927_pcicptr->g2pmmask[2] = 0;
-        tx4927_pcicptr->g2pmgbase[2] = 0;
-        tx4927_pcicptr->g2pmpbase[2] = 0;
-
-
-        /* PCI->GB mappings (I/O 256B) */
-        tx4927_pcicptr->p2giopbase = 0; /* 256B */
-
-        /* PCI->GB mappings (MEM 512MB) M0 gets all of memory */
-        tx4927_pcicptr->p2gm0plbase = 0;
-        tx4927_pcicptr->p2gm0pubase = 0;
-        tx4927_pcicptr->p2gmgbase[0] = 0 | TX4927_PCIC_P2GMnGBASE_TMEMEN |
-#ifdef __BIG_ENDIAN
-            TX4927_PCIC_P2GMnGBASE_TECHG
-#else
-            TX4927_PCIC_P2GMnGBASE_TBSDIS
-#endif
-            ;
-
-        /* PCI->GB mappings (MEM 16MB) -not used */
-        tx4927_pcicptr->p2gm1plbase = 0xffffffff;
-        tx4927_pcicptr->p2gm1pubase = 0xffffffff;
-        tx4927_pcicptr->p2gmgbase[1] = 0;
-
-        /* PCI->GB mappings (MEM 1MB) -not used */
-        tx4927_pcicptr->p2gm2pbase = 0xffffffff;
-        tx4927_pcicptr->p2gmgbase[2] = 0;
-
-
-        /* Enable Initiator Memory 0 Space, I/O Space, Config */
-        tx4927_pcicptr->pciccfg &= TX4927_PCIC_PCICCFG_LBWC_MASK;
-        tx4927_pcicptr->pciccfg |=
-            TX4927_PCIC_PCICCFG_IMSE0 | TX4927_PCIC_PCICCFG_IISE |
-            TX4927_PCIC_PCICCFG_ICAE | TX4927_PCIC_PCICCFG_ATR;
-
-
-        /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
-        tx4927_pcicptr->pcicfg1 = 0;
-
-        if (tx4927_pcic_trdyto >= 0) {
-                tx4927_pcicptr->g2ptocnt &= ~0xff;
-                tx4927_pcicptr->g2ptocnt |= (tx4927_pcic_trdyto & 0xff);
-        }
-
-        /* Clear All Local Bus Status */
-        tx4927_pcicptr->pcicstatus = TX4927_PCIC_PCICSTATUS_ALL;
-        /* Enable All Local Bus Interrupts */
-        tx4927_pcicptr->pcicmask = TX4927_PCIC_PCICSTATUS_ALL;
-        /* Clear All Initiator Status */
-        tx4927_pcicptr->g2pstatus = TX4927_PCIC_G2PSTATUS_ALL;
-        /* Enable All Initiator Interrupts */
-        tx4927_pcicptr->g2pmask = TX4927_PCIC_G2PSTATUS_ALL;
-        /* Clear All PCI Status Error */
-        tx4927_pcicptr->pcistatus =
-            (tx4927_pcicptr->pcistatus & 0x0000ffff) |
-            (TX4927_PCIC_PCISTATUS_ALL << 16);
-        /* Enable All PCI Status Error Interrupts */
-        tx4927_pcicptr->pcimask = TX4927_PCIC_PCISTATUS_ALL;
-
-        /* PCIC Int => IRC IRQ16 */
-        tx4927_pcicptr->pcicfg2 =
-            (tx4927_pcicptr->pcicfg2 & 0xffffff00) | TX4927_IR_PCIC;
-
-        if (!(tx4927_ccfgptr->ccfg & TX4927_CCFG_PCIXARB)) {
-                /* XXX */
-        } else {
-                /* Reset Bus Arbiter */
-                tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_RPBA;
-                /* Enable Bus Arbiter */
-                tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_PBAEN;
-        }
-
-        tx4927_pcicptr->pcistatus = PCI_COMMAND_MASTER |
-            PCI_COMMAND_MEMORY |
-            PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2,
-                                       ":pci setup complete:\n");
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI2, "+\n");
-}
-
-#endif /* CONFIG_PCI */
-
-static void __noreturn wait_forever(void)
-{
-        while (1)
-                if (cpu_wait)
-                        (*cpu_wait)();
-}
-
-void toshiba_rbtx4927_restart(char *command)
-{
-        printk(KERN_NOTICE "System Rebooting...\n");
-
-        /* enable the s/w reset register */
-        writeb(RBTX4927_SW_RESET_ENABLE_SET, RBTX4927_SW_RESET_ENABLE);
-
-        /* wait for enable to be seen */
-        while ((readb(RBTX4927_SW_RESET_ENABLE) &
-                RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
-
-        /* do a s/w reset */
-        writeb(RBTX4927_SW_RESET_DO_SET, RBTX4927_SW_RESET_DO);
-
-        /* do something passive while waiting for reset */
-        local_irq_disable();
-        wait_forever();
-        /* no return */
-}
-
-
-void toshiba_rbtx4927_halt(void)
-{
-        printk(KERN_NOTICE "System Halted\n");
-        local_irq_disable();
-        wait_forever();
-        /* no return */
-}
-
-void toshiba_rbtx4927_power_off(void)
-{
-        toshiba_rbtx4927_halt();
-        /* no return */
-}
-
-void __init plat_mem_setup(void)
-{
-        int i;
-        u32 cp0_config;
-        char *argptr;
-
-        printk("CPU is %s\n", toshiba_name);
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
-                                       "-\n");
-
-        /* f/w leaves this on at startup */
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
-                                       ":Clearing STO_ERL.\n");
-        clear_c0_status(ST0_ERL);
-
-        /* enable caches -- HCP5 does this, pmon does not */
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
-                                       ":Enabling TX49_CONF_IC,TX49_CONF_DC.\n");
-        cp0_config = read_c0_config();
-        cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
-        write_c0_config(cp0_config);
-
-        set_io_port_base(KSEG1 + TBTX4927_ISA_IO_OFFSET);
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
-                                       ":mips_io_port_base=0x%08lx\n",
-                                       mips_io_port_base);
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
-                                       ":Resource\n");
-        ioport_resource.end = 0xffffffff;
-        iomem_resource.end = 0xffffffff;
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
-                                       ":ResetRoutines\n");
-        _machine_restart = toshiba_rbtx4927_restart;
-        _machine_halt = toshiba_rbtx4927_halt;
-        pm_power_off = toshiba_rbtx4927_power_off;
-
-        for (i = 0; i < TX4927_NR_TMR; i++)
-                txx9_tmr_init(TX4927_TMR_REG(0) & 0xfffffffffULL);
-
-#ifdef CONFIG_PCI
-
-        /* PCIC */
-        /*
-           * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
-           *
-           * For TX4927:
-           * PCIDIVMODE[12:11]'s initial value is given by S9[4:3] (ON:0, OFF:1).
-           * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
-           * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
-           * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
-           * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
-           * i.e. S9[3]: ON (83MHz), OFF (100MHz)
-           *
-           * For TX4937:
-           * PCIDIVMODE[12:11]'s initial value is given by S1[5:4] (ON:0, OFF:1)
-           * PCIDIVMODE[10] is 0.
-           * CPU 266MHz: PCI 33MHz : PCIDIVMODE: 000 (1/8)
-           * CPU 266MHz: PCI 66MHz : PCIDIVMODE: 001 (1/4)
-           * CPU 300MHz: PCI 33MHz : PCIDIVMODE: 010 (1/9)
-           * CPU 300MHz: PCI 66MHz : PCIDIVMODE: 011 (1/4.5)
-           * CPU 333MHz: PCI 33MHz : PCIDIVMODE: 100 (1/10)
-           * CPU 333MHz: PCI 66MHz : PCIDIVMODE: 101 (1/5)
-           *
-         */
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
-                                       "ccfg is %lx, PCIDIVMODE is %x\n",
-                                       (unsigned long) tx4927_ccfgptr->ccfg,
-                                       (unsigned long) tx4927_ccfgptr->ccfg &
-                                       (mips_machtype == MACH_TOSHIBA_RBTX4937 ?
-                                        TX4937_CCFG_PCIDIVMODE_MASK :
-                                        TX4927_CCFG_PCIDIVMODE_MASK));
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_PCI1,
-                                       "PCI66 mode is %lx, PCI mode is %lx, pci arb is %lx\n",
-                                       (unsigned long) tx4927_ccfgptr->
-                                       ccfg & TX4927_CCFG_PCI66,
-                                       (unsigned long) tx4927_ccfgptr->
-                                       ccfg & TX4927_CCFG_PCIMIDE,
-                                       (unsigned long) tx4927_ccfgptr->
-                                       ccfg & TX4927_CCFG_PCIXARB);
-
-        if (mips_machtype == MACH_TOSHIBA_RBTX4937)
-                switch ((unsigned long)tx4927_ccfgptr->
-                        ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
-                case TX4937_CCFG_PCIDIVMODE_8:
-                case TX4937_CCFG_PCIDIVMODE_4:
-                        tx4927_cpu_clock = 266666666;   /* 266MHz */
-                        break;
-                case TX4937_CCFG_PCIDIVMODE_9:
-                case TX4937_CCFG_PCIDIVMODE_4_5:
-                        tx4927_cpu_clock = 300000000;   /* 300MHz */
-                        break;
-                default:
-                        tx4927_cpu_clock = 333333333;   /* 333MHz */
-                }
-        else
-                switch ((unsigned long)tx4927_ccfgptr->
-                        ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
-                case TX4927_CCFG_PCIDIVMODE_2_5:
-                case TX4927_CCFG_PCIDIVMODE_5:
-                        tx4927_cpu_clock = 166666666;   /* 166MHz */
-                        break;
-                default:
-                        tx4927_cpu_clock = 200000000;   /* 200MHz */
-                }
-
-        /* CCFG */
-        /* do reset on watchdog */
-        tx4927_ccfgptr->ccfg |= TX4927_CCFG_WR;
-        /* enable Timeout BusError */
-        if (tx4927_ccfg_toeon)
-                tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
-
-        tx4927_pci_setup();
-        if (tx4927_using_backplane == 1)
-                printk("backplane board IS installed\n");
-        else
-                printk("No Backplane \n");
-
-        /* this is on ISA bus behind PCI bus, so need PCI up first */
-#ifdef CONFIG_TOSHIBA_FPCIB0
-        {
-                if (tx4927_using_backplane) {
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_SETUP,
-                             ":fpcibo=yes\n");
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_SETUP,
-                             ":smsc_fdc37m81x_init()\n");
-                        smsc_fdc37m81x_init(0x3f0);
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_SETUP,
-                             ":smsc_fdc37m81x_config_beg()\n");
-                        smsc_fdc37m81x_config_beg();
-
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_SETUP,
-                             ":smsc_fdc37m81x_config_set(KBD)\n");
-                        smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
-                                                  SMSC_FDC37M81X_KBD);
-                        smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
-                        smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
-                        smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
-                                                  1);
-
-                        smsc_fdc37m81x_config_end();
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_SETUP,
-                             ":smsc_fdc37m81x_config_end()\n");
-                } else {
-                        TOSHIBA_RBTX4927_SETUP_DPRINTK
-                            (TOSHIBA_RBTX4927_SETUP_SETUP,
-                             ":fpcibo=not_found\n");
-                }
-        }
-#else
-        {
-                TOSHIBA_RBTX4927_SETUP_DPRINTK
-                    (TOSHIBA_RBTX4927_SETUP_SETUP, ":fpcibo=no\n");
-        }
-#endif
-
-#endif /* CONFIG_PCI */
-
-#ifdef CONFIG_SERIAL_TXX9
-        {
-                extern int early_serial_txx9_setup(struct uart_port *port);
-                struct uart_port req;
-                for(i = 0; i < 2; i++) {
-                        memset(&req, 0, sizeof(req));
-                        req.line = i;
-                        req.iotype = UPIO_MEM;
-                        req.membase = (char *)(0xff1ff300 + i * 0x100);
-                        req.mapbase = 0xff1ff300 + i * 0x100;
-                        req.irq = TX4927_IRQ_PIC_BEG + 8 + i;
-                        req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
-                        req.uartclk = 50000000;
-                        early_serial_txx9_setup(&req);
-                }
-        }
-#ifdef CONFIG_SERIAL_TXX9_CONSOLE
-        argptr = prom_getcmdline();
-        if (strstr(argptr, "console=") == NULL) {
-                strcat(argptr, " console=ttyS0,38400");
-        }
-#endif
-#endif
-
-#ifdef CONFIG_ROOT_NFS
-        argptr = prom_getcmdline();
-        if (strstr(argptr, "root=") == NULL) {
-                strcat(argptr, " root=/dev/nfs rw");
-        }
-#endif
-
-
-#ifdef CONFIG_IP_PNP
-        argptr = prom_getcmdline();
-        if (strstr(argptr, "ip=") == NULL) {
-                strcat(argptr, " ip=any");
-        }
-#endif
-
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_SETUP,
-                               "+\n");
-}
-
-void __init plat_time_init(void)
-{
-        mips_hpt_frequency = tx4927_cpu_clock / 2;
-        if (tx4927_ccfgptr->ccfg & TX4927_CCFG_TINTDIS)
-                txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL,
-                                     TXX9_IRQ_BASE + 17,
-                                     50000000);
-}
-
-static int __init toshiba_rbtx4927_rtc_init(void)
-{
-        static struct resource __initdata res = {
-                .start  = 0x1c010000,
-                .end    = 0x1c010000 + 0x800 - 1,
-                .flags  = IORESOURCE_MEM,
-        };
-        struct platform_device *dev =
-                platform_device_register_simple("rtc-ds1742", -1, &res, 1);
-        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
-}
-device_initcall(toshiba_rbtx4927_rtc_init);
-
-static int __init rbtx4927_ne_init(void)
-{
-        static struct resource __initdata res[] = {
-                {
-                        .start  = RBTX4927_RTL_8019_BASE,
-                        .end    = RBTX4927_RTL_8019_BASE + 0x20 - 1,
-                        .flags  = IORESOURCE_IO,
-                }, {
-                        .start  = RBTX4927_RTL_8019_IRQ,
-                        .flags  = IORESOURCE_IRQ,
-                }
-        };
-        struct platform_device *dev =
-                platform_device_register_simple("ne", -1,
-                                                res, ARRAY_SIZE(res));
-        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
-}
-device_initcall(rbtx4927_ne_init);
-
-/* Watchdog support */
-
-static int __init txx9_wdt_init(unsigned long base)
-{
-        struct resource res = {
-                .start  = base,
-                .end    = base + 0x100 - 1,
-                .flags  = IORESOURCE_MEM,
-        };
-        struct platform_device *dev =
-                platform_device_register_simple("txx9wdt", -1, &res, 1);
-        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
-}
-
-static int __init rbtx4927_wdt_init(void)
-{
-        return txx9_wdt_init(TX4927_TMR_REG(2) & 0xfffffffffULL);
-}
-device_initcall(rbtx4927_wdt_init);
-
-/* Minimum CLK support */
-
-struct clk *clk_get(struct device *dev, const char *id)
-{
-        if (!strcmp(id, "imbus_clk"))
-                return (struct clk *)50000000;
-        return ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(clk_get);
-
-int clk_enable(struct clk *clk)
-{
-        return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_disable);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
-        return (unsigned long)clk;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
diff --git a/arch/mips/tx4938/Kconfig b/arch/mips/tx4938/Kconfig
deleted file mode 100644
index d90e9cd8513..00000000000
--- a/arch/mips/tx4938/Kconfig
+++ /dev/null
@@ -1,24 +0,0 @@
-if TOSHIBA_RBTX4938
-
-comment "Multiplex Pin Select"
-choice
-        prompt "PIO[58:61]"
-        default TOSHIBA_RBTX4938_MPLEX_PIO58_61
-
-config TOSHIBA_RBTX4938_MPLEX_PIO58_61
-        bool "PIO"
-config TOSHIBA_RBTX4938_MPLEX_NAND
-        bool "NAND"
-config TOSHIBA_RBTX4938_MPLEX_ATA
-        bool "ATA"
-
-endchoice
-
-config TX4938_NAND_BOOT
-        depends on EXPERIMENTAL && TOSHIBA_RBTX4938_MPLEX_NAND
-        bool "NAND Boot Support (EXPERIMENTAL)"
-        help
-          This is only for Toshiba RBTX4938 reference board, which has NAND IPL.
-          Select this option if you need to use NAND boot.
-
-endif
diff --git a/arch/mips/tx4938/common/Makefile b/arch/mips/tx4938/common/Makefile
deleted file mode 100644
index 56aa1ed1ee0..00000000000
--- a/arch/mips/tx4938/common/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for common code for Toshiba TX4927 based systems
-#
-
-obj-y   += prom.o irq.o
-obj-$(CONFIG_KGDB) += dbgio.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/tx4938/common/irq.c b/arch/mips/tx4938/common/irq.c
deleted file mode 100644
index c059b899d12..00000000000
--- a/arch/mips/tx4938/common/irq.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * linux/arch/mips/tx4938/common/irq.c
- *
- * Common tx4938 irq handler
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-#include <asm/tx4938/rbtx4938.h>
-
-void __init
-tx4938_irq_init(void)
-{
-        mips_cpu_irq_init();
-        txx9_irq_init(TX4938_IRC_REG);
-        set_irq_chained_handler(TX4938_IRQ_NEST_PIC_ON_CP0, handle_simple_irq);
-}
-
-int toshiba_rbtx4938_irq_nested(int irq);
-
-asmlinkage void plat_irq_dispatch(void)
-{
-        unsigned int pending = read_c0_cause() & read_c0_status();
-
-        if (pending & STATUSF_IP7)
-                do_IRQ(TX4938_IRQ_CPU_TIMER);
-        else if (pending & STATUSF_IP2) {
-                int irq = txx9_irq();
-                if (irq == TX4938_IRQ_PIC_BEG + TX4938_IR_INT(0))
-                        irq = toshiba_rbtx4938_irq_nested(irq);
-                if (irq >= 0)
-                        do_IRQ(irq);
-                else
-                        spurious_interrupt();
-        } else if (pending & STATUSF_IP1)
-                do_IRQ(TX4938_IRQ_USER1);
-        else if (pending & STATUSF_IP0)
-                do_IRQ(TX4938_IRQ_USER0);
-}
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/prom.c b/arch/mips/tx4938/toshiba_rbtx4938/prom.c
deleted file mode 100644
index 1644bffa501..00000000000
--- a/arch/mips/tx4938/toshiba_rbtx4938/prom.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * linux/arch/mips/tx4938/toshiba_rbtx4938/prom.c
- *
- * rbtx4938 specific prom routines
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
- */
-
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/bootmem.h>
-
-#include <asm/addrspace.h>
-#include <asm/bootinfo.h>
-#include <asm/tx4938/tx4938.h>
-
-void __init prom_init_cmdline(void)
-{
-        int argc = (int) fw_arg0;
-        char **argv = (char **) fw_arg1;
-        int i;
-
-        /* ignore all built-in args if any f/w args given */
-        if (argc > 1) {
-                *arcs_cmdline = '\0';
-        }
-
-        for (i = 1; i < argc; i++) {
-                if (i != 1) {
-                        strcat(arcs_cmdline, " ");
-                }
-                strcat(arcs_cmdline, argv[i]);
-        }
-}
-
-void __init prom_init(void)
-{
-        extern int tx4938_get_mem_size(void);
-        int msize;
-#ifndef CONFIG_TX4938_NAND_BOOT
-        prom_init_cmdline();
-#endif
-
-        msize = tx4938_get_mem_size();
-        add_memory_region(0, msize << 20, BOOT_MEM_RAM);
-
-        return;
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
-
-void __init prom_fixup_mem_map(unsigned long start, unsigned long end)
-{
-        return;
-}
-
-const char *get_system_type(void)
-{
-        return "Toshiba RBTX4938";
-}
-
-char * __init prom_getcmdline(void)
-{
-        return &(arcs_cmdline[0]);
-}
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/setup.c b/arch/mips/tx4938/toshiba_rbtx4938/setup.c
deleted file mode 100644
index 3a3659e8633..00000000000
--- a/arch/mips/tx4938/toshiba_rbtx4938/setup.c
+++ /dev/null
@@ -1,1124 +0,0 @@
-/*
- * linux/arch/mips/tx4938/toshiba_rbtx4938/setup.c
- *
- * Setup pointers to hardware-dependent routines.
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
- * terms of the GNU General Public License version 2. This program is
- * licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
- */
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/console.h>
-#include <linux/pci.h>
-#include <linux/pm.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/gpio.h>
-
-#include <asm/reboot.h>
-#include <asm/time.h>
-#include <asm/txx9tmr.h>
-#include <asm/io.h>
-#include <asm/bootinfo.h>
-#include <asm/tx4938/rbtx4938.h>
-#ifdef CONFIG_SERIAL_TXX9
-#include <linux/serial_core.h>
-#endif
-#include <linux/spi/spi.h>
-#include <asm/tx4938/spi.h>
-#include <asm/txx9pio.h>
-
-extern char * __init prom_getcmdline(void);
-static inline void tx4938_report_pcic_status1(struct tx4938_pcic_reg *pcicptr);
-
-/* These functions are used for rebooting or halting the machine*/
-extern void rbtx4938_machine_restart(char *command);
-extern void rbtx4938_machine_halt(void);
-extern void rbtx4938_machine_power_off(void);
-
-/* clocks */
-unsigned int txx9_master_clock;
-unsigned int txx9_cpu_clock;
-unsigned int txx9_gbus_clock;
-
-unsigned long rbtx4938_ce_base[8];
-unsigned long rbtx4938_ce_size[8];
-int txboard_pci66_mode;
-static int tx4938_pcic_trdyto;  /* default: disabled */
-static int tx4938_pcic_retryto; /* default: disabled */
-static int tx4938_ccfg_toeon = 1;
-
-struct tx4938_pcic_reg *pcicptrs[4] = {
-       tx4938_pcicptr  /* default setting for TX4938 */
-};
-
-static struct {
-        unsigned long base;
-        unsigned long size;
-} phys_regions[16] __initdata;
-static int num_phys_regions  __initdata;
-
-#define PHYS_REGION_MINSIZE     0x10000
-
-void rbtx4938_machine_halt(void)
-{
-        printk(KERN_NOTICE "System Halted\n");
-        local_irq_disable();
-
-        while (1)
-                __asm__(".set\tmips3\n\t"
-                        "wait\n\t"
-                        ".set\tmips0");
-}
-
-void rbtx4938_machine_power_off(void)
-{
-        rbtx4938_machine_halt();
-        /* no return */
-}
-
-void rbtx4938_machine_restart(char *command)
-{
-        local_irq_disable();
-
-        printk("Rebooting...");
-        writeb(1, rbtx4938_softresetlock_addr);
-        writeb(1, rbtx4938_sfvol_addr);
-        writeb(1, rbtx4938_softreset_addr);
-        while(1)
-                ;
-}
-
-void __init
-txboard_add_phys_region(unsigned long base, unsigned long size)
-{
-        if (num_phys_regions >= ARRAY_SIZE(phys_regions)) {
-                printk("phys_region overflow\n");
-                return;
-        }
-        phys_regions[num_phys_regions].base = base;
-        phys_regions[num_phys_regions].size = size;
-        num_phys_regions++;
-}
-unsigned long __init
-txboard_find_free_phys_region(unsigned long begin, unsigned long end,
-                              unsigned long size)
-{
-        unsigned long base;
-        int i;
-
-        for (base = begin / size * size; base < end; base += size) {
-                for (i = 0; i < num_phys_regions; i++) {
-                        if (phys_regions[i].size &&
-                            base <= phys_regions[i].base + (phys_regions[i].size - 1) &&
-                            base + (size - 1) >= phys_regions[i].base)
-                                break;
-                }
-                if (i == num_phys_regions)
-                        return base;
-        }
-        return 0;
-}
-unsigned long __init
-txboard_find_free_phys_region_shrink(unsigned long begin, unsigned long end,
-                                     unsigned long *size)
-{
-        unsigned long sz, base;
-        for (sz = *size; sz >= PHYS_REGION_MINSIZE; sz /= 2) {
-                base = txboard_find_free_phys_region(begin, end, sz);
-                if (base) {
-                        *size = sz;
-                        return base;
-                }
-        }
-        return 0;
-}
-unsigned long __init
-txboard_request_phys_region_range(unsigned long begin, unsigned long end,
-                                  unsigned long size)
-{
-        unsigned long base;
-        base = txboard_find_free_phys_region(begin, end, size);
-        if (base)
-                txboard_add_phys_region(base, size);
-        return base;
-}
-unsigned long __init
-txboard_request_phys_region(unsigned long size)
-{
-        unsigned long base;
-        unsigned long begin = 0, end = 0x20000000;      /* search low 512MB */
-        base = txboard_find_free_phys_region(begin, end, size);
-        if (base)
-                txboard_add_phys_region(base, size);
-        return base;
-}
-unsigned long __init
-txboard_request_phys_region_shrink(unsigned long *size)
-{
-        unsigned long base;
-        unsigned long begin = 0, end = 0x20000000;      /* search low 512MB */
-        base = txboard_find_free_phys_region_shrink(begin, end, size);
-        if (base)
-                txboard_add_phys_region(base, *size);
-        return base;
-}
-
-#ifdef CONFIG_PCI
-void __init
-tx4938_pcic_setup(struct tx4938_pcic_reg *pcicptr,
-                  struct pci_controller *channel,
-                  unsigned long pci_io_base,
-                  int extarb)
-{
-        int i;
-
-        /* Disable All Initiator Space */
-        pcicptr->pciccfg &= ~(TX4938_PCIC_PCICCFG_G2PMEN(0)|
-                              TX4938_PCIC_PCICCFG_G2PMEN(1)|
-                              TX4938_PCIC_PCICCFG_G2PMEN(2)|
-                              TX4938_PCIC_PCICCFG_G2PIOEN);
-
-        /* GB->PCI mappings */
-        pcicptr->g2piomask = (channel->io_resource->end - channel->io_resource->start) >> 4;
-        pcicptr->g2piogbase = pci_io_base |
-#ifdef __BIG_ENDIAN
-                TX4938_PCIC_G2PIOGBASE_ECHG
-#else
-                TX4938_PCIC_G2PIOGBASE_BSDIS
-#endif
-                ;
-        pcicptr->g2piopbase = 0;
-        for (i = 0; i < 3; i++) {
-                pcicptr->g2pmmask[i] = 0;
-                pcicptr->g2pmgbase[i] = 0;
-                pcicptr->g2pmpbase[i] = 0;
-        }
-        if (channel->mem_resource->end) {
-                pcicptr->g2pmmask[0] = (channel->mem_resource->end - channel->mem_resource->start) >> 4;
-                pcicptr->g2pmgbase[0] = channel->mem_resource->start |
-#ifdef __BIG_ENDIAN
-                        TX4938_PCIC_G2PMnGBASE_ECHG
-#else
-                        TX4938_PCIC_G2PMnGBASE_BSDIS
-#endif
-                        ;
-                pcicptr->g2pmpbase[0] = channel->mem_resource->start;
-        }
-        /* PCI->GB mappings (I/O 256B) */
-        pcicptr->p2giopbase = 0; /* 256B */
-        pcicptr->p2giogbase = 0;
-        /* PCI->GB mappings (MEM 512MB (64MB on R1.x)) */
-        pcicptr->p2gm0plbase = 0;
-        pcicptr->p2gm0pubase = 0;
-        pcicptr->p2gmgbase[0] = 0 |
-                TX4938_PCIC_P2GMnGBASE_TMEMEN |
-#ifdef __BIG_ENDIAN
-                TX4938_PCIC_P2GMnGBASE_TECHG
-#else
-                TX4938_PCIC_P2GMnGBASE_TBSDIS
-#endif
-                ;
-        /* PCI->GB mappings (MEM 16MB) */
-        pcicptr->p2gm1plbase = 0xffffffff;
-        pcicptr->p2gm1pubase = 0xffffffff;
-        pcicptr->p2gmgbase[1] = 0;
-        /* PCI->GB mappings (MEM 1MB) */
-        pcicptr->p2gm2pbase = 0xffffffff; /* 1MB */
-        pcicptr->p2gmgbase[2] = 0;
-
-        pcicptr->pciccfg &= TX4938_PCIC_PCICCFG_GBWC_MASK;
-        /* Enable Initiator Memory Space */
-        if (channel->mem_resource->end)
-                pcicptr->pciccfg |= TX4938_PCIC_PCICCFG_G2PMEN(0);
-        /* Enable Initiator I/O Space */
-        if (channel->io_resource->end)
-                pcicptr->pciccfg |= TX4938_PCIC_PCICCFG_G2PIOEN;
-        /* Enable Initiator Config */
-        pcicptr->pciccfg |=
-                TX4938_PCIC_PCICCFG_ICAEN |
-                TX4938_PCIC_PCICCFG_TCAR;
-
-        /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
-        pcicptr->pcicfg1 = 0;
-
-        pcicptr->g2ptocnt &= ~0xffff;
-
-        if (tx4938_pcic_trdyto >= 0) {
-                pcicptr->g2ptocnt &= ~0xff;
-                pcicptr->g2ptocnt |= (tx4938_pcic_trdyto & 0xff);
-        }
-
-        if (tx4938_pcic_retryto >= 0) {
-                pcicptr->g2ptocnt &= ~0xff00;
-                pcicptr->g2ptocnt |= ((tx4938_pcic_retryto<<8) & 0xff00);
-        }
-
-        /* Clear All Local Bus Status */
-        pcicptr->pcicstatus = TX4938_PCIC_PCICSTATUS_ALL;
-        /* Enable All Local Bus Interrupts */
-        pcicptr->pcicmask = TX4938_PCIC_PCICSTATUS_ALL;
-        /* Clear All Initiator Status */
-        pcicptr->g2pstatus = TX4938_PCIC_G2PSTATUS_ALL;
-        /* Enable All Initiator Interrupts */
-        pcicptr->g2pmask = TX4938_PCIC_G2PSTATUS_ALL;
-        /* Clear All PCI Status Error */
-        pcicptr->pcistatus =
-                (pcicptr->pcistatus & 0x0000ffff) |
-                (TX4938_PCIC_PCISTATUS_ALL << 16);
-        /* Enable All PCI Status Error Interrupts */
-        pcicptr->pcimask = TX4938_PCIC_PCISTATUS_ALL;
-
-        if (!extarb) {
-                /* Reset Bus Arbiter */
-                pcicptr->pbacfg = TX4938_PCIC_PBACFG_RPBA;
-                pcicptr->pbabm = 0;
-                /* Enable Bus Arbiter */
-                pcicptr->pbacfg = TX4938_PCIC_PBACFG_PBAEN;
-        }
-
-      /* PCIC Int => IRC IRQ16 */
-        pcicptr->pcicfg2 =
-                    (pcicptr->pcicfg2 & 0xffffff00) | TX4938_IR_PCIC;
-
-        pcicptr->pcistatus = PCI_COMMAND_MASTER |
-                PCI_COMMAND_MEMORY |
-                PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
-}
-
-int __init
-tx4938_report_pciclk(void)
-{
-        unsigned long pcode = TX4938_REV_PCODE();
-        int pciclk = 0;
-        printk("TX%lx PCIC --%s PCICLK:",
-               pcode,
-               (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI66) ? " PCI66" : "");
-        if (tx4938_ccfgptr->pcfg & TX4938_PCFG_PCICLKEN_ALL) {
-
-                switch ((unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIDIVMODE_MASK) {
-                case TX4938_CCFG_PCIDIVMODE_4:
-                        pciclk = txx9_cpu_clock / 4; break;
-                case TX4938_CCFG_PCIDIVMODE_4_5:
-                        pciclk = txx9_cpu_clock * 2 / 9; break;
-                case TX4938_CCFG_PCIDIVMODE_5:
-                        pciclk = txx9_cpu_clock / 5; break;
-                case TX4938_CCFG_PCIDIVMODE_5_5:
-                        pciclk = txx9_cpu_clock * 2 / 11; break;
-                case TX4938_CCFG_PCIDIVMODE_8:
-                        pciclk = txx9_cpu_clock / 8; break;
-                case TX4938_CCFG_PCIDIVMODE_9:
-                        pciclk = txx9_cpu_clock / 9; break;
-                case TX4938_CCFG_PCIDIVMODE_10:
-                        pciclk = txx9_cpu_clock / 10; break;
-                case TX4938_CCFG_PCIDIVMODE_11:
-                        pciclk = txx9_cpu_clock / 11; break;
-                }
-                printk("Internal(%dMHz)", pciclk / 1000000);
-        } else {
-                printk("External");
-                pciclk = -1;
-        }
-        printk("\n");
-        return pciclk;
-}
-
-void __init set_tx4938_pcicptr(int ch, struct tx4938_pcic_reg *pcicptr)
-{
-        pcicptrs[ch] = pcicptr;
-}
-
-struct tx4938_pcic_reg *get_tx4938_pcicptr(int ch)
-{
-       return pcicptrs[ch];
-}
-
-static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
-                                    int top_bus, int busnr, int devfn)
-{
-        static struct pci_dev dev;
-        static struct pci_bus bus;
-
-        dev.sysdata = bus.sysdata = hose;
-        dev.devfn = devfn;
-        bus.number = busnr;
-        bus.ops = hose->pci_ops;
-        bus.parent = NULL;
-        dev.bus = &bus;
-
-        return &dev;
-}
-
-#define EARLY_PCI_OP(rw, size, type)                                    \
-static int early_##rw##_config_##size(struct pci_controller *hose,      \
-        int top_bus, int bus, int devfn, int offset, type value)        \
-{                                                                       \
-        return pci_##rw##_config_##size(                                \
-                fake_pci_dev(hose, top_bus, bus, devfn),                \
-                offset, value);                                         \
-}
-
-EARLY_PCI_OP(read, word, u16 *)
-
-int txboard_pci66_check(struct pci_controller *hose, int top_bus, int current_bus)
-{
-        u32 pci_devfn;
-        unsigned short vid;
-        int devfn_start = 0;
-        int devfn_stop = 0xff;
-        int cap66 = -1;
-        u16 stat;
-
-        printk("PCI: Checking 66MHz capabilities...\n");
-
-        for (pci_devfn=devfn_start; pci_devfn<devfn_stop; pci_devfn++) {
-                if (early_read_config_word(hose, top_bus, current_bus,
-                                           pci_devfn, PCI_VENDOR_ID,
-                                           &vid) != PCIBIOS_SUCCESSFUL)
-                        continue;
-
-                if (vid == 0xffff) continue;
-
-                /* check 66MHz capability */
-                if (cap66 < 0)
-                        cap66 = 1;
-                if (cap66) {
-                        early_read_config_word(hose, top_bus, current_bus, pci_devfn,
-                                               PCI_STATUS, &stat);
-                        if (!(stat & PCI_STATUS_66MHZ)) {
-                                printk(KERN_DEBUG "PCI: %02x:%02x not 66MHz capable.\n",
-                                       current_bus, pci_devfn);
-                                cap66 = 0;
-                                break;
-                        }
-                }
-        }
-        return cap66 > 0;
-}
-
-int __init
-tx4938_pciclk66_setup(void)
-{
-        int pciclk;
-
-        /* Assert M66EN */
-        tx4938_ccfgptr->ccfg |= TX4938_CCFG_PCI66;
-        /* Double PCICLK (if possible) */
-        if (tx4938_ccfgptr->pcfg & TX4938_PCFG_PCICLKEN_ALL) {
-                unsigned int pcidivmode =
-                        tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIDIVMODE_MASK;
-                switch (pcidivmode) {
-                case TX4938_CCFG_PCIDIVMODE_8:
-                case TX4938_CCFG_PCIDIVMODE_4:
-                        pcidivmode = TX4938_CCFG_PCIDIVMODE_4;
-                        pciclk = txx9_cpu_clock / 4;
-                        break;
-                case TX4938_CCFG_PCIDIVMODE_9:
-                case TX4938_CCFG_PCIDIVMODE_4_5:
-                        pcidivmode = TX4938_CCFG_PCIDIVMODE_4_5;
-                        pciclk = txx9_cpu_clock * 2 / 9;
-                        break;
-                case TX4938_CCFG_PCIDIVMODE_10:
-                case TX4938_CCFG_PCIDIVMODE_5:
-                        pcidivmode = TX4938_CCFG_PCIDIVMODE_5;
-                        pciclk = txx9_cpu_clock / 5;
-                        break;
-                case TX4938_CCFG_PCIDIVMODE_11:
-                case TX4938_CCFG_PCIDIVMODE_5_5:
-                default:
-                        pcidivmode = TX4938_CCFG_PCIDIVMODE_5_5;
-                        pciclk = txx9_cpu_clock * 2 / 11;
-                        break;
-                }
-                tx4938_ccfgptr->ccfg =
-                        (tx4938_ccfgptr->ccfg & ~TX4938_CCFG_PCIDIVMODE_MASK)
-                        | pcidivmode;
-                printk(KERN_DEBUG "PCICLK: ccfg:%08lx\n",
-                       (unsigned long)tx4938_ccfgptr->ccfg);
-        } else {
-                pciclk = -1;
-        }
-        return pciclk;
-}
-
-extern struct pci_controller tx4938_pci_controller[];
-static int __init tx4938_pcibios_init(void)
-{
-        unsigned long mem_base[2];
-        unsigned long mem_size[2] = {TX4938_PCIMEM_SIZE_0, TX4938_PCIMEM_SIZE_1}; /* MAX 128M,64K */
-        unsigned long io_base[2];
-        unsigned long io_size[2] = {TX4938_PCIIO_SIZE_0, TX4938_PCIIO_SIZE_1}; /* MAX 16M,64K */
-        /* TX4938 PCIC1: 64K MEM/IO is enough for ETH0,ETH1 */
-        int extarb = !(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIXARB);
-
-        PCIBIOS_MIN_IO = 0x00001000UL;
-
-        mem_base[0] = txboard_request_phys_region_shrink(&mem_size[0]);
-        io_base[0] = txboard_request_phys_region_shrink(&io_size[0]);
-
-        printk("TX4938 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
-               (unsigned short)(tx4938_pcicptr->pciid >> 16),
-               (unsigned short)(tx4938_pcicptr->pciid & 0xffff),
-               (unsigned short)(tx4938_pcicptr->pciccrev & 0xff),
-               extarb ? "External" : "Internal");
-
-        /* setup PCI area */
-        tx4938_pci_controller[0].io_resource->start = io_base[0];
-        tx4938_pci_controller[0].io_resource->end = (io_base[0] + io_size[0]) - 1;
-        tx4938_pci_controller[0].mem_resource->start = mem_base[0];
-        tx4938_pci_controller[0].mem_resource->end = mem_base[0] + mem_size[0] - 1;
-
-        set_tx4938_pcicptr(0, tx4938_pcicptr);
-
-        register_pci_controller(&tx4938_pci_controller[0]);
-
-        if (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI66) {
-                printk("TX4938_CCFG_PCI66 already configured\n");
-                txboard_pci66_mode = -1; /* already configured */
-        }
-
-        /* Reset PCI Bus */
-        writeb(0, rbtx4938_pcireset_addr);
-        /* Reset PCIC */
-        tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIRST;
-        if (txboard_pci66_mode > 0)
-                tx4938_pciclk66_setup();
-        mdelay(10);
-        /* clear PCIC reset */
-        tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIRST;
-        writeb(1, rbtx4938_pcireset_addr);
-        mmiowb();
-        tx4938_report_pcic_status1(tx4938_pcicptr);
-
-        tx4938_report_pciclk();
-        tx4938_pcic_setup(tx4938_pcicptr, &tx4938_pci_controller[0], io_base[0], extarb);
-        if (txboard_pci66_mode == 0 &&
-            txboard_pci66_check(&tx4938_pci_controller[0], 0, 0)) {
-                /* Reset PCI Bus */
-                writeb(0, rbtx4938_pcireset_addr);
-                /* Reset PCIC */
-                tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIRST;
-                tx4938_pciclk66_setup();
-                mdelay(10);
-                /* clear PCIC reset */
-                tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIRST;
-                writeb(1, rbtx4938_pcireset_addr);
-                mmiowb();
-                /* Reinitialize PCIC */
-                tx4938_report_pciclk();
-                tx4938_pcic_setup(tx4938_pcicptr, &tx4938_pci_controller[0], io_base[0], extarb);
-        }
-
-        mem_base[1] = txboard_request_phys_region_shrink(&mem_size[1]);
-        io_base[1] = txboard_request_phys_region_shrink(&io_size[1]);
-        /* Reset PCIC1 */
-        tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIC1RST;
-        /* PCI1DMD==0 => PCI1CLK==GBUSCLK/2 => PCI66 */
-        if (!(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1DMD))
-                tx4938_ccfgptr->ccfg |= TX4938_CCFG_PCI1_66;
-        else
-                tx4938_ccfgptr->ccfg &= ~TX4938_CCFG_PCI1_66;
-        mdelay(10);
-        /* clear PCIC1 reset */
-        tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIC1RST;
-        tx4938_report_pcic_status1(tx4938_pcic1ptr);
-
-        printk("TX4938 PCIC1 -- DID:%04x VID:%04x RID:%02x",
-               (unsigned short)(tx4938_pcic1ptr->pciid >> 16),
-               (unsigned short)(tx4938_pcic1ptr->pciid & 0xffff),
-               (unsigned short)(tx4938_pcic1ptr->pciccrev & 0xff));
-        printk("%s PCICLK:%dMHz\n",
-               (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1_66) ? " PCI66" : "",
-               txx9_gbus_clock /
-               ((tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1DMD) ? 4 : 2) /
-               1000000);
-
-        /* assumption: CPHYSADDR(mips_io_port_base) == io_base[0] */
-        tx4938_pci_controller[1].io_resource->start =
-                io_base[1] - io_base[0];
-        tx4938_pci_controller[1].io_resource->end =
-                io_base[1] - io_base[0] + io_size[1] - 1;
-        tx4938_pci_controller[1].mem_resource->start = mem_base[1];
-        tx4938_pci_controller[1].mem_resource->end =
-                mem_base[1] + mem_size[1] - 1;
-        set_tx4938_pcicptr(1, tx4938_pcic1ptr);
-
-        register_pci_controller(&tx4938_pci_controller[1]);
-
-        tx4938_pcic_setup(tx4938_pcic1ptr, &tx4938_pci_controller[1], io_base[1], extarb);
-
-        /* map ioport 0 to PCI I/O space address 0 */
-        set_io_port_base(KSEG1 + io_base[0]);
-
-        return 0;
-}
-
-arch_initcall(tx4938_pcibios_init);
-
-#endif /* CONFIG_PCI */
-
-/* SPI support */
-
-/* chip select for SPI devices */
-#define SEEPROM1_CS     7       /* PIO7 */
-#define SEEPROM2_CS     0       /* IOC */
-#define SEEPROM3_CS     1       /* IOC */
-#define SRTC_CS 2       /* IOC */
-
-#ifdef CONFIG_PCI
-static int __init rbtx4938_ethaddr_init(void)
-{
-        unsigned char dat[17];
-        unsigned char sum;
-        int i;
-
-        /* 0-3: "MAC\0", 4-9:eth0, 10-15:eth1, 16:sum */
-        if (spi_eeprom_read(SEEPROM1_CS, 0, dat, sizeof(dat))) {
-                printk(KERN_ERR "seeprom: read error.\n");
-                return -ENODEV;
-        } else {
-                if (strcmp(dat, "MAC") != 0)
-                        printk(KERN_WARNING "seeprom: bad signature.\n");
-                for (i = 0, sum = 0; i < sizeof(dat); i++)
-                        sum += dat[i];
-                if (sum)
-                        printk(KERN_WARNING "seeprom: bad checksum.\n");
-        }
-        for (i = 0; i < 2; i++) {
-                unsigned int id =
-                        TXX9_IRQ_BASE + (i ? TX4938_IR_ETH1 : TX4938_IR_ETH0);
-                struct platform_device *pdev;
-                if (!(tx4938_ccfgptr->pcfg &
-                      (i ? TX4938_PCFG_ETH1_SEL : TX4938_PCFG_ETH0_SEL)))
-                        continue;
-                pdev = platform_device_alloc("tc35815-mac", id);
-                if (!pdev ||
-                    platform_device_add_data(pdev, &dat[4 + 6 * i], 6) ||
-                    platform_device_add(pdev))
-                        platform_device_put(pdev);
-        }
-        return 0;
-}
-device_initcall(rbtx4938_ethaddr_init);
-#endif /* CONFIG_PCI */
-
-static void __init rbtx4938_spi_setup(void)
-{
-        /* set SPI_SEL */
-        tx4938_ccfgptr->pcfg |= TX4938_PCFG_SPI_SEL;
-}
-
-static struct resource rbtx4938_fpga_resource;
-
-static char pcode_str[8];
-static struct resource tx4938_reg_resource = {
-        .start  = TX4938_REG_BASE,
-        .end    = TX4938_REG_BASE + TX4938_REG_SIZE,
-        .name   = pcode_str,
-        .flags  = IORESOURCE_MEM
-};
-
-void __init tx4938_board_setup(void)
-{
-        int i;
-        unsigned long divmode;
-        int cpuclk = 0;
-        unsigned long pcode = TX4938_REV_PCODE();
-
-        ioport_resource.start = 0x1000;
-        ioport_resource.end = 0xffffffff;
-        iomem_resource.start = 0x1000;
-        iomem_resource.end = 0xffffffff;        /* expand to 4GB */
-
-        sprintf(pcode_str, "TX%lx", pcode);
-        /* SDRAMC,EBUSC are configured by PROM */
-        for (i = 0; i < 8; i++) {
-                if (!(tx4938_ebuscptr->cr[i] & 0x8))
-                        continue;       /* disabled */
-                rbtx4938_ce_base[i] = (unsigned long)TX4938_EBUSC_BA(i);
-                txboard_add_phys_region(rbtx4938_ce_base[i], TX4938_EBUSC_SIZE(i));
-        }
-
-        /* clocks */
-        if (txx9_master_clock) {
-                /* calculate gbus_clock and cpu_clock_freq from master_clock */
-                divmode = (unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_DIVMODE_MASK;
-                switch (divmode) {
-                case TX4938_CCFG_DIVMODE_8:
-                case TX4938_CCFG_DIVMODE_10:
-                case TX4938_CCFG_DIVMODE_12:
-                case TX4938_CCFG_DIVMODE_16:
-                case TX4938_CCFG_DIVMODE_18:
-                        txx9_gbus_clock = txx9_master_clock * 4; break;
-                default:
-                        txx9_gbus_clock = txx9_master_clock;
-                }
-                switch (divmode) {
-                case TX4938_CCFG_DIVMODE_2:
-                case TX4938_CCFG_DIVMODE_8:
-                        cpuclk = txx9_gbus_clock * 2; break;
-                case TX4938_CCFG_DIVMODE_2_5:
-                case TX4938_CCFG_DIVMODE_10:
-                        cpuclk = txx9_gbus_clock * 5 / 2; break;
-                case TX4938_CCFG_DIVMODE_3:
-                case TX4938_CCFG_DIVMODE_12:
-                        cpuclk = txx9_gbus_clock * 3; break;
-                case TX4938_CCFG_DIVMODE_4:
-                case TX4938_CCFG_DIVMODE_16:
-                        cpuclk = txx9_gbus_clock * 4; break;
-                case TX4938_CCFG_DIVMODE_4_5:
-                case TX4938_CCFG_DIVMODE_18:
-                        cpuclk = txx9_gbus_clock * 9 / 2; break;
-                }
-                txx9_cpu_clock = cpuclk;
-        } else {
-                if (txx9_cpu_clock == 0) {
-                        txx9_cpu_clock = 300000000;     /* 300MHz */
-                }
-                /* calculate gbus_clock and master_clock from cpu_clock_freq */
-                cpuclk = txx9_cpu_clock;
-                divmode = (unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_DIVMODE_MASK;
-                switch (divmode) {
-                case TX4938_CCFG_DIVMODE_2:
-                case TX4938_CCFG_DIVMODE_8:
-                        txx9_gbus_clock = cpuclk / 2; break;
-                case TX4938_CCFG_DIVMODE_2_5:
-                case TX4938_CCFG_DIVMODE_10:
-                        txx9_gbus_clock = cpuclk * 2 / 5; break;
-                case TX4938_CCFG_DIVMODE_3:
-                case TX4938_CCFG_DIVMODE_12:
-                        txx9_gbus_clock = cpuclk / 3; break;
-                case TX4938_CCFG_DIVMODE_4:
-                case TX4938_CCFG_DIVMODE_16:
-                        txx9_gbus_clock = cpuclk / 4; break;
-                case TX4938_CCFG_DIVMODE_4_5:
-                case TX4938_CCFG_DIVMODE_18:
-                        txx9_gbus_clock = cpuclk * 2 / 9; break;
-                }
-                switch (divmode) {
-                case TX4938_CCFG_DIVMODE_8:
-                case TX4938_CCFG_DIVMODE_10:
-                case TX4938_CCFG_DIVMODE_12:
-                case TX4938_CCFG_DIVMODE_16:
-                case TX4938_CCFG_DIVMODE_18:
-                        txx9_master_clock = txx9_gbus_clock / 4; break;
-                default:
-                        txx9_master_clock = txx9_gbus_clock;
-                }
-        }
-        /* change default value to udelay/mdelay take reasonable time */
-        loops_per_jiffy = txx9_cpu_clock / HZ / 2;
-
-        /* CCFG */
-        /* clear WatchDogReset,BusErrorOnWrite flag (W1C) */
-        tx4938_ccfgptr->ccfg |= TX4938_CCFG_WDRST | TX4938_CCFG_BEOW;
-        /* do reset on watchdog */
-        tx4938_ccfgptr->ccfg |= TX4938_CCFG_WR;
-        /* clear PCIC1 reset */
-        if (tx4938_ccfgptr->clkctr & TX4938_CLKCTR_PCIC1RST)
-                tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIC1RST;
-
-        /* enable Timeout BusError */
-        if (tx4938_ccfg_toeon)
-                tx4938_ccfgptr->ccfg |= TX4938_CCFG_TOE;
-
-        /* DMA selection */
-        tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_DMASEL_ALL;
-
-        /* Use external clock for external arbiter */
-        if (!(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIXARB))
-                tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_PCICLKEN_ALL;
-
-        printk("%s -- %dMHz(M%dMHz) CRIR:%08lx CCFG:%Lx PCFG:%Lx\n",
-               pcode_str,
-               cpuclk / 1000000, txx9_master_clock / 1000000,
-               (unsigned long)tx4938_ccfgptr->crir,
-               tx4938_ccfgptr->ccfg,
-               tx4938_ccfgptr->pcfg);
-
-        printk("%s SDRAMC --", pcode_str);
-        for (i = 0; i < 4; i++) {
-                unsigned long long cr = tx4938_sdramcptr->cr[i];
-                unsigned long ram_base, ram_size;
-                if (!((unsigned long)cr & 0x00000400))
-                        continue;       /* disabled */
-                ram_base = (unsigned long)(cr >> 49) << 21;
-                ram_size = ((unsigned long)(cr >> 33) + 1) << 21;
-                if (ram_base >= 0x20000000)
-                        continue;       /* high memory (ignore) */
-                printk(" CR%d:%016Lx", i, cr);
-                txboard_add_phys_region(ram_base, ram_size);
-        }
-        printk(" TR:%09Lx\n", tx4938_sdramcptr->tr);
-
-        /* SRAM */
-        if (pcode == 0x4938 && tx4938_sramcptr->cr & 1) {
-                unsigned int size = 0x800;
-                unsigned long base =
-                        (tx4938_sramcptr->cr >> (39-11)) & ~(size - 1);
-                 txboard_add_phys_region(base, size);
-        }
-
-        /* TMR */
-        for (i = 0; i < TX4938_NR_TMR; i++)
-                txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
-
-        /* enable DMA */
-        for (i = 0; i < 2; i++)
-                ____raw_writeq(TX4938_DMA_MCR_MSTEN,
-                               (void __iomem *)(TX4938_DMA_REG(i) + 0x50));
-
-        /* PIO */
-        __raw_writel(0, &tx4938_pioptr->maskcpu);
-        __raw_writel(0, &tx4938_pioptr->maskext);
-
-        /* TX4938 internal registers */
-        if (request_resource(&iomem_resource, &tx4938_reg_resource))
-                printk("request resource for internal registers failed\n");
-}
-
-#ifdef CONFIG_PCI
-static inline void tx4938_report_pcic_status1(struct tx4938_pcic_reg *pcicptr)
-{
-        unsigned short pcistatus = (unsigned short)(pcicptr->pcistatus >> 16);
-        unsigned long g2pstatus = pcicptr->g2pstatus;
-        unsigned long pcicstatus = pcicptr->pcicstatus;
-        static struct {
-                unsigned long flag;
-                const char *str;
-        } pcistat_tbl[] = {
-                { PCI_STATUS_DETECTED_PARITY,   "DetectedParityError" },
-                { PCI_STATUS_SIG_SYSTEM_ERROR,  "SignaledSystemError" },
-                { PCI_STATUS_REC_MASTER_ABORT,  "ReceivedMasterAbort" },
-                { PCI_STATUS_REC_TARGET_ABORT,  "ReceivedTargetAbort" },
-                { PCI_STATUS_SIG_TARGET_ABORT,  "SignaledTargetAbort" },
-                { PCI_STATUS_PARITY,    "MasterParityError" },
-        }, g2pstat_tbl[] = {
-                { TX4938_PCIC_G2PSTATUS_TTOE,   "TIOE" },
-                { TX4938_PCIC_G2PSTATUS_RTOE,   "RTOE" },
-        }, pcicstat_tbl[] = {
-                { TX4938_PCIC_PCICSTATUS_PME,   "PME" },
-                { TX4938_PCIC_PCICSTATUS_TLB,   "TLB" },
-                { TX4938_PCIC_PCICSTATUS_NIB,   "NIB" },
-                { TX4938_PCIC_PCICSTATUS_ZIB,   "ZIB" },
-                { TX4938_PCIC_PCICSTATUS_PERR,  "PERR" },
-                { TX4938_PCIC_PCICSTATUS_SERR,  "SERR" },
-                { TX4938_PCIC_PCICSTATUS_GBE,   "GBE" },
-                { TX4938_PCIC_PCICSTATUS_IWB,   "IWB" },
-        };
-        int i;
-
-        printk("pcistat:%04x(", pcistatus);
-        for (i = 0; i < ARRAY_SIZE(pcistat_tbl); i++)
-                if (pcistatus & pcistat_tbl[i].flag)
-                        printk("%s ", pcistat_tbl[i].str);
-        printk("), g2pstatus:%08lx(", g2pstatus);
-        for (i = 0; i < ARRAY_SIZE(g2pstat_tbl); i++)
-                if (g2pstatus & g2pstat_tbl[i].flag)
-                        printk("%s ", g2pstat_tbl[i].str);
-        printk("), pcicstatus:%08lx(", pcicstatus);
-        for (i = 0; i < ARRAY_SIZE(pcicstat_tbl); i++)
-                if (pcicstatus & pcicstat_tbl[i].flag)
-                        printk("%s ", pcicstat_tbl[i].str);
-        printk(")\n");
-}
-
-void tx4938_report_pcic_status(void)
-{
-        int i;
-        struct tx4938_pcic_reg *pcicptr;
-        for (i = 0; (pcicptr = get_tx4938_pcicptr(i)) != NULL; i++)
-                tx4938_report_pcic_status1(pcicptr);
-}
-
-#endif /* CONFIG_PCI */
-
-void __init plat_time_init(void)
-{
-        mips_hpt_frequency = txx9_cpu_clock / 2;
-        if (tx4938_ccfgptr->ccfg & TX4938_CCFG_TINTDIS)
-                txx9_clockevent_init(TX4938_TMR_REG(0) & 0xfffffffffULL,
-                                     TXX9_IRQ_BASE + TX4938_IR_TMR(0),
-                                     txx9_gbus_clock / 2);
-}
-
-void __init plat_mem_setup(void)
-{
-        unsigned long long pcfg;
-        char *argptr;
-
-        iomem_resource.end = 0xffffffff;        /* 4GB */
-
-        if (txx9_master_clock == 0)
-                txx9_master_clock = 25000000; /* 25MHz */
-        tx4938_board_setup();
-#ifndef CONFIG_PCI
-        set_io_port_base(RBTX4938_ETHER_BASE);
-#endif
-
-#ifdef CONFIG_SERIAL_TXX9
-        {
-                extern int early_serial_txx9_setup(struct uart_port *port);
-                int i;
-                struct uart_port req;
-                for(i = 0; i < 2; i++) {
-                        memset(&req, 0, sizeof(req));
-                        req.line = i;
-                        req.iotype = UPIO_MEM;
-                        req.membase = (char *)(0xff1ff300 + i * 0x100);
-                        req.mapbase = 0xff1ff300 + i * 0x100;
-                        req.irq = RBTX4938_IRQ_IRC_SIO(i);
-                        req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
-                        req.uartclk = 50000000;
-                        early_serial_txx9_setup(&req);
-                }
-        }
-#ifdef CONFIG_SERIAL_TXX9_CONSOLE
-        argptr = prom_getcmdline();
-        if (strstr(argptr, "console=") == NULL) {
-                strcat(argptr, " console=ttyS0,38400");
-        }
-#endif
-#endif
-
-#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_PIO58_61
-        printk("PIOSEL: disabling both ata and nand selection\n");
-        local_irq_disable();
-        tx4938_ccfgptr->pcfg &= ~(TX4938_PCFG_NDF_SEL | TX4938_PCFG_ATA_SEL);
-#endif
-
-#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_NAND
-        printk("PIOSEL: enabling nand selection\n");
-        tx4938_ccfgptr->pcfg |= TX4938_PCFG_NDF_SEL;
-        tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_ATA_SEL;
-#endif
-
-#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_ATA
-        printk("PIOSEL: enabling ata selection\n");
-        tx4938_ccfgptr->pcfg |= TX4938_PCFG_ATA_SEL;
-        tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_NDF_SEL;
-#endif
-
-#ifdef CONFIG_IP_PNP
-        argptr = prom_getcmdline();
-        if (strstr(argptr, "ip=") == NULL) {
-                strcat(argptr, " ip=any");
-        }
-#endif
-
-
-#ifdef CONFIG_FB
-        {
-                conswitchp = &dummy_con;
-        }
-#endif
-
-        rbtx4938_spi_setup();
-        pcfg = tx4938_ccfgptr->pcfg;    /* updated */
-        /* fixup piosel */
-        if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
-            TX4938_PCFG_ATA_SEL)
-                writeb((readb(rbtx4938_piosel_addr) & 0x03) | 0x04,
-                       rbtx4938_piosel_addr);
-        else if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
-                 TX4938_PCFG_NDF_SEL)
-                writeb((readb(rbtx4938_piosel_addr) & 0x03) | 0x08,
-                       rbtx4938_piosel_addr);
-        else
-                writeb(readb(rbtx4938_piosel_addr) & ~(0x08 | 0x04),
-                       rbtx4938_piosel_addr);
-
-        rbtx4938_fpga_resource.name = "FPGA Registers";
-        rbtx4938_fpga_resource.start = CPHYSADDR(RBTX4938_FPGA_REG_ADDR);
-        rbtx4938_fpga_resource.end = CPHYSADDR(RBTX4938_FPGA_REG_ADDR) + 0xffff;
-        rbtx4938_fpga_resource.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-        if (request_resource(&iomem_resource, &rbtx4938_fpga_resource))
-                printk("request resource for fpga failed\n");
-
-        _machine_restart = rbtx4938_machine_restart;
-        _machine_halt = rbtx4938_machine_halt;
-        pm_power_off = rbtx4938_machine_power_off;
-
-        writeb(0xff, rbtx4938_led_addr);
-        printk(KERN_INFO "RBTX4938 --- FPGA(Rev %02x) DIPSW:%02x,%02x\n",
-               readb(rbtx4938_fpga_rev_addr),
-               readb(rbtx4938_dipsw_addr), readb(rbtx4938_bdipsw_addr));
-}
-
-static int __init rbtx4938_ne_init(void)
-{
-        struct resource res[] = {
-                {
-                        .start  = RBTX4938_RTL_8019_BASE,
-                        .end    = RBTX4938_RTL_8019_BASE + 0x20 - 1,
-                        .flags  = IORESOURCE_IO,
-                }, {
-                        .start  = RBTX4938_RTL_8019_IRQ,
-                        .flags  = IORESOURCE_IRQ,
-                }
-        };
-        struct platform_device *dev =
-                platform_device_register_simple("ne", -1,
-                                                res, ARRAY_SIZE(res));
-        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
-}
-device_initcall(rbtx4938_ne_init);
-
-/* GPIO support */
-
-int gpio_to_irq(unsigned gpio)
-{
-        return -EINVAL;
-}
-
-int irq_to_gpio(unsigned irq)
-{
-        return -EINVAL;
-}
-
-static DEFINE_SPINLOCK(rbtx4938_spi_gpio_lock);
-
-static void rbtx4938_spi_gpio_set(struct gpio_chip *chip, unsigned int offset,
-                                  int value)
-{
-        u8 val;
-        unsigned long flags;
-        spin_lock_irqsave(&rbtx4938_spi_gpio_lock, flags);
-        val = readb(rbtx4938_spics_addr);
-        if (value)
-                val |= 1 << offset;
-        else
-                val &= ~(1 << offset);
-        writeb(val, rbtx4938_spics_addr);
-        mmiowb();
-        spin_unlock_irqrestore(&rbtx4938_spi_gpio_lock, flags);
-}
-
-static int rbtx4938_spi_gpio_dir_out(struct gpio_chip *chip,
-                                     unsigned int offset, int value)
-{
-        rbtx4938_spi_gpio_set(chip, offset, value);
-        return 0;
-}
-
-static struct gpio_chip rbtx4938_spi_gpio_chip = {
-        .set = rbtx4938_spi_gpio_set,
-        .direction_output = rbtx4938_spi_gpio_dir_out,
-        .label = "RBTX4938-SPICS",
-        .base = 16,
-        .ngpio = 3,
-};
-
-/* SPI support */
-
-static void __init txx9_spi_init(unsigned long base, int irq)
-{
-        struct resource res[] = {
-                {
-                        .start  = base,
-                        .end    = base + 0x20 - 1,
-                        .flags  = IORESOURCE_MEM,
-                }, {
-                        .start  = irq,
-                        .flags  = IORESOURCE_IRQ,
-                },
-        };
-        platform_device_register_simple("spi_txx9", 0,
-                                        res, ARRAY_SIZE(res));
-}
-
-static int __init rbtx4938_spi_init(void)
-{
-        struct spi_board_info srtc_info = {
-                .modalias = "rtc-rs5c348",
-                .max_speed_hz = 1000000, /* 1.0Mbps @ Vdd 2.0V */
-                .bus_num = 0,
-                .chip_select = 16 + SRTC_CS,
-                /* Mode 1 (High-Active, Shift-Then-Sample), High Avtive CS  */
-                .mode = SPI_MODE_1 | SPI_CS_HIGH,
-        };
-        spi_register_board_info(&srtc_info, 1);
-        spi_eeprom_register(SEEPROM1_CS);
-        spi_eeprom_register(16 + SEEPROM2_CS);
-        spi_eeprom_register(16 + SEEPROM3_CS);
-        gpio_request(16 + SRTC_CS, "rtc-rs5c348");
-        gpio_direction_output(16 + SRTC_CS, 0);
-        gpio_request(SEEPROM1_CS, "seeprom1");
-        gpio_direction_output(SEEPROM1_CS, 1);
-        gpio_request(16 + SEEPROM2_CS, "seeprom2");
-        gpio_direction_output(16 + SEEPROM2_CS, 1);
-        gpio_request(16 + SEEPROM3_CS, "seeprom3");
-        gpio_direction_output(16 + SEEPROM3_CS, 1);
-        txx9_spi_init(TX4938_SPI_REG & 0xfffffffffULL, RBTX4938_IRQ_IRC_SPI);
-        return 0;
-}
-
-static int __init rbtx4938_arch_init(void)
-{
-        txx9_gpio_init(TX4938_PIO_REG & 0xfffffffffULL, 0, 16);
-        gpiochip_add(&rbtx4938_spi_gpio_chip);
-        return rbtx4938_spi_init();
-}
-arch_initcall(rbtx4938_arch_init);
-
-/* Watchdog support */
-
-static int __init txx9_wdt_init(unsigned long base)
-{
-        struct resource res = {
-                .start  = base,
-                .end    = base + 0x100 - 1,
-                .flags  = IORESOURCE_MEM,
-        };
-        struct platform_device *dev =
-                platform_device_register_simple("txx9wdt", -1, &res, 1);
-        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
-}
-
-static int __init rbtx4938_wdt_init(void)
-{
-        return txx9_wdt_init(TX4938_TMR_REG(2) & 0xfffffffffULL);
-}
-device_initcall(rbtx4938_wdt_init);
-
-/* Minimum CLK support */
-
-struct clk *clk_get(struct device *dev, const char *id)
-{
-        if (!strcmp(id, "spi-baseclk"))
-                return (struct clk *)(txx9_gbus_clock / 2 / 4);
-        if (!strcmp(id, "imbus_clk"))
-                return (struct clk *)(txx9_gbus_clock / 2);
-        return ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(clk_get);
-
-int clk_enable(struct clk *clk)
-{
-        return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_disable);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
-        return (unsigned long)clk;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
new file mode 100644
index 00000000000..b92a134ef12
--- /dev/null
+++ b/arch/mips/txx9/Kconfig
@@ -0,0 +1,115 @@
+config TOSHIBA_JMR3927
+        bool "Toshiba JMR-TX3927 board"
+        depends on MACH_TX39XX
+        select SOC_TX3927
+
+config TOSHIBA_RBTX4927
+        bool "Toshiba RBTX49[23]7 board"
+        depends on MACH_TX49XX
+        select SOC_TX4927
+        help
+          This Toshiba board is based on the TX4927 processor. Say Y here to
+          support this machine type
+
+config TOSHIBA_RBTX4938
+        bool "Toshiba RBTX4938 board"
+        depends on MACH_TX49XX
+        select SOC_TX4938
+        help
+          This Toshiba board is based on the TX4938 processor. Say Y here to
+          support this machine type
+
+config SOC_TX3927
+        bool
+        select CEVT_TXX9
+        select DMA_NONCOHERENT
+        select HAS_TXX9_SERIAL
+        select HW_HAS_PCI
+        select IRQ_TXX9
+        select SWAP_IO_SPACE
+        select SYS_HAS_CPU_TX39XX
+        select SYS_SUPPORTS_32BIT_KERNEL
+        select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_SUPPORTS_BIG_ENDIAN
+        select GENERIC_HARDIRQS_NO__DO_IRQ
+        select GPIO_TXX9
+
+config SOC_TX4927
+        bool
+        select CEVT_R4K
+        select CSRC_R4K
+        select CEVT_TXX9
+        select DMA_NONCOHERENT
+        select HAS_TXX9_SERIAL
+        select HW_HAS_PCI
+        select IRQ_CPU
+        select IRQ_TXX9
+        select PCI_TX4927
+        select SWAP_IO_SPACE
+        select SYS_HAS_CPU_TX49XX
+        select SYS_SUPPORTS_32BIT_KERNEL
+        select SYS_SUPPORTS_64BIT_KERNEL
+        select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_SUPPORTS_BIG_ENDIAN
+        select SYS_SUPPORTS_KGDB
+        select GENERIC_HARDIRQS_NO__DO_IRQ
+        select GPIO_TXX9
+
+config SOC_TX4938
+        bool
+        select CEVT_R4K
+        select CSRC_R4K
+        select CEVT_TXX9
+        select DMA_NONCOHERENT
+        select HAS_TXX9_SERIAL
+        select HW_HAS_PCI
+        select IRQ_CPU
+        select IRQ_TXX9
+        select PCI_TX4927
+        select SWAP_IO_SPACE
+        select SYS_HAS_CPU_TX49XX
+        select SYS_SUPPORTS_32BIT_KERNEL
+        select SYS_SUPPORTS_64BIT_KERNEL
+        select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_SUPPORTS_BIG_ENDIAN
+        select SYS_SUPPORTS_KGDB
+        select GENERIC_HARDIRQS_NO__DO_IRQ
+        select GPIO_TXX9
+
+config TOSHIBA_FPCIB0
+        bool "FPCIB0 Backplane Support"
+        depends on PCI && (MACH_TX39XX || MACH_TX49XX)
+        select I8259
+
+config PICMG_PCI_BACKPLANE_DEFAULT
+        bool "Support for PICMG PCI Backplane"
+        depends on PCI && (MACH_TX39XX || MACH_TX49XX)
+        default y if !TOSHIBA_FPCIB0
+
+if TOSHIBA_RBTX4938
+
+comment "Multiplex Pin Select"
+choice
+        prompt "PIO[58:61]"
+        default TOSHIBA_RBTX4938_MPLEX_PIO58_61
+
+config TOSHIBA_RBTX4938_MPLEX_PIO58_61
+        bool "PIO"
+config TOSHIBA_RBTX4938_MPLEX_NAND
+        bool "NAND"
+config TOSHIBA_RBTX4938_MPLEX_ATA
+        bool "ATA"
+
+endchoice
+
+config TX4938_NAND_BOOT
+        depends on EXPERIMENTAL && TOSHIBA_RBTX4938_MPLEX_NAND
+        bool "NAND Boot Support (EXPERIMENTAL)"
+        help
+          This is only for Toshiba RBTX4938 reference board, which has NAND IPL.
+          Select this option if you need to use NAND boot.
+
+endif
+
+config PCI_TX4927
+        bool
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile
new file mode 100644
index 00000000000..668fdaad644
--- /dev/null
+++ b/arch/mips/txx9/generic/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for common code for TXx9 based systems
+#
+
+obj-y   += setup.o
+obj-$(CONFIG_PCI)       += pci.o
+obj-$(CONFIG_SOC_TX4927)        += mem_tx4927.o irq_tx4927.o
+obj-$(CONFIG_SOC_TX4938)        += mem_tx4938.o irq_tx4938.o
+obj-$(CONFIG_TOSHIBA_FPCIB0)    += smsc_fdc37m81x.o
+obj-$(CONFIG_KGDB)      += dbgio.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/tx4938/common/dbgio.c b/arch/mips/txx9/generic/dbgio.c
index 33b9c672a32..33b9c672a32 100644
--- a/arch/mips/tx4938/common/dbgio.c
+++ b/arch/mips/txx9/generic/dbgio.c
diff --git a/arch/mips/tx4927/common/tx4927_irq.c b/arch/mips/txx9/generic/irq_tx4927.c
index 0aabd57fdad..6377bd8a905 100644
--- a/arch/mips/tx4927/common/tx4927_irq.c
+++ b/arch/mips/txx9/generic/irq_tx4927.c
@@ -26,40 +26,12 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-#include <asm/tx4927/tx4927.h>
-#ifdef CONFIG_TOSHIBA_RBTX4927
-#include <asm/tx4927/toshiba_rbtx4927.h>
-#endif
+#include <asm/txx9/tx4927.h>
 
 void __init tx4927_irq_init(void)
 {
         mips_cpu_irq_init();
         txx9_irq_init(TX4927_IRC_REG);
-        set_irq_chained_handler(TX4927_IRQ_NEST_PIC_ON_CP0, handle_simple_irq);
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
-        unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
-
-        if (pending & STATUSF_IP7)                      /* cpu timer */
-                do_IRQ(TX4927_IRQ_CPU_TIMER);
-        else if (pending & STATUSF_IP2) {               /* tx4927 pic */
-                int irq = txx9_irq();
-#ifdef CONFIG_TOSHIBA_RBTX4927
-                if (irq == TX4927_IRQ_NEST_EXT_ON_PIC)
-                        irq = toshiba_rbtx4927_irq_nested(irq);
-#endif
-                if (unlikely(irq < 0)) {
-                        spurious_interrupt();
-                        return;
-                }
-                do_IRQ(irq);
-        } else if (pending & STATUSF_IP0)               /* user line 0 */
-                do_IRQ(TX4927_IRQ_USER0);
-        else if (pending & STATUSF_IP1)                 /* user line 1 */
-                do_IRQ(TX4927_IRQ_USER1);
-        else
-                spurious_interrupt();
+        set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
+                                handle_simple_irq);
 }
diff --git a/arch/mips/txx9/generic/irq_tx4938.c b/arch/mips/txx9/generic/irq_tx4938.c
new file mode 100644
index 00000000000..5fc86c9c9d2
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx4938.c
@@ -0,0 +1,25 @@
+/*
+ * linux/arch/mips/tx4938/common/irq.c
+ *
+ * Common tx4938 irq handler
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/irq_cpu.h>
+#include <asm/txx9/tx4938.h>
+
+void __init tx4938_irq_init(void)
+{
+        mips_cpu_irq_init();
+        txx9_irq_init(TX4938_IRC_REG);
+        set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
+                                handle_simple_irq);
+}
diff --git a/arch/mips/tx4927/common/tx4927_prom.c b/arch/mips/txx9/generic/mem_tx4927.c
index 6eed53d8f38..12dfc377bf2 100644
--- a/arch/mips/tx4927/common/tx4927_prom.c
+++ b/arch/mips/txx9/generic/mem_tx4927.c
@@ -30,13 +30,8 @@
  */
 
 #include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/bootmem.h>
-
-#include <asm/addrspace.h>
-#include <asm/bootinfo.h>
-#include <asm/tx4927/tx4927.h>
+#include <linux/types.h>
+#include <linux/io.h>
 
 static unsigned int __init tx4927_process_sdccr(unsigned long addr)
 {
diff --git a/arch/mips/tx4938/common/prom.c b/arch/mips/txx9/generic/mem_tx4938.c
index 20baeaeba4c..20baeaeba4c 100644
--- a/arch/mips/tx4938/common/prom.c
+++ b/arch/mips/txx9/generic/mem_tx4938.c
diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c
new file mode 100644
index 00000000000..0b92d8c1320
--- /dev/null
+++ b/arch/mips/txx9/generic/pci.c
@@ -0,0 +1,388 @@
+/*
+ * linux/arch/mips/txx9/pci.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4927/setup.c,
+ *          linux/arch/mips/txx9/rbtx4938/setup.c,
+ *          and RBTX49xx patch from CELF patch archive.
+ *
+ * Copyright 2001-2005 MontaVista Software Inc.
+ * Copyright (C) 1996, 97, 2001, 04  Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/io.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#include <linux/interrupt.h>
+#include <asm/i8259.h>
+#include <asm/txx9/smsc_fdc37m81x.h>
+#endif
+
+static int __init
+early_read_config_word(struct pci_controller *hose,
+                       int top_bus, int bus, int devfn, int offset, u16 *value)
+{
+        struct pci_dev fake_dev;
+        struct pci_bus fake_bus;
+
+        fake_dev.bus = &fake_bus;
+        fake_dev.sysdata = hose;
+        fake_dev.devfn = devfn;
+        fake_bus.number = bus;
+        fake_bus.sysdata = hose;
+        fake_bus.ops = hose->pci_ops;
+
+        if (bus != top_bus)
+                /* Fake a parent bus structure. */
+                fake_bus.parent = &fake_bus;
+        else
+                fake_bus.parent = NULL;
+
+        return pci_read_config_word(&fake_dev, offset, value);
+}
+
+int __init txx9_pci66_check(struct pci_controller *hose, int top_bus,
+                            int current_bus)
+{
+        u32 pci_devfn;
+        unsigned short vid;
+        int cap66 = -1;
+        u16 stat;
+
+        /* It seems SLC90E66 needs some time after PCI reset... */
+        mdelay(80);
+
+        printk(KERN_INFO "PCI: Checking 66MHz capabilities...\n");
+
+        for (pci_devfn = 0; pci_devfn < 0xff; pci_devfn++) {
+                if (PCI_FUNC(pci_devfn))
+                        continue;
+                if (early_read_config_word(hose, top_bus, current_bus,
+                                           pci_devfn, PCI_VENDOR_ID, &vid) !=
+                    PCIBIOS_SUCCESSFUL)
+                        continue;
+                if (vid == 0xffff)
+                        continue;
+
+                /* check 66MHz capability */
+                if (cap66 < 0)
+                        cap66 = 1;
+                if (cap66) {
+                        early_read_config_word(hose, top_bus, current_bus,
+                                               pci_devfn, PCI_STATUS, &stat);
+                        if (!(stat & PCI_STATUS_66MHZ)) {
+                                printk(KERN_DEBUG
+                                       "PCI: %02x:%02x not 66MHz capable.\n",
+                                       current_bus, pci_devfn);
+                                cap66 = 0;
+                                break;
+                        }
+                }
+        }
+        return cap66 > 0;
+}
+
+static struct resource primary_pci_mem_res[2] = {
+        { .name = "PCI MEM" },
+        { .name = "PCI MMIO" },
+};
+static struct resource primary_pci_io_res = { .name = "PCI IO" };
+struct pci_controller txx9_primary_pcic = {
+        .mem_resource = &primary_pci_mem_res[0],
+        .io_resource = &primary_pci_io_res,
+};
+
+#ifdef CONFIG_64BIT
+int txx9_pci_mem_high __initdata = 1;
+#else
+int txx9_pci_mem_high __initdata;
+#endif
+
+/*
+ * allocate pci_controller and resources.
+ * mem_base, io_base: physical addresss.  0 for auto assignment.
+ * mem_size and io_size means max size on auto assignment.
+ * pcic must be &txx9_primary_pcic or NULL.
+ */
+struct pci_controller *__init
+txx9_alloc_pci_controller(struct pci_controller *pcic,
+                          unsigned long mem_base, unsigned long mem_size,
+                          unsigned long io_base, unsigned long io_size)
+{
+        struct pcic {
+                struct pci_controller c;
+                struct resource r_mem[2];
+                struct resource r_io;
+        } *new = NULL;
+        int min_size = 0x10000;
+
+        if (!pcic) {
+                new = kzalloc(sizeof(*new), GFP_KERNEL);
+                if (!new)
+                        return NULL;
+                new->r_mem[0].name = "PCI mem";
+                new->r_mem[1].name = "PCI mmio";
+                new->r_io.name = "PCI io";
+                new->c.mem_resource = new->r_mem;
+                new->c.io_resource = &new->r_io;
+                pcic = &new->c;
+        } else
+                BUG_ON(pcic != &txx9_primary_pcic);
+        pcic->io_resource->flags = IORESOURCE_IO;
+
+        /*
+         * for auto assignment, first search a (big) region for PCI
+         * MEM, then search a region for PCI IO.
+         */
+        if (mem_base) {
+                pcic->mem_resource[0].start = mem_base;
+                pcic->mem_resource[0].end = mem_base + mem_size - 1;
+                if (request_resource(&iomem_resource, &pcic->mem_resource[0]))
+                        goto free_and_exit;
+        } else {
+                unsigned long min = 0, max = 0x20000000; /* low 512MB */
+                if (!mem_size) {
+                        /* default size for auto assignment */
+                        if (txx9_pci_mem_high)
+                                mem_size = 0x20000000;  /* mem:512M(max) */
+                        else
+                                mem_size = 0x08000000;  /* mem:128M(max) */
+                }
+                if (txx9_pci_mem_high) {
+                        min = 0x20000000;
+                        max = 0xe0000000;
+                }
+                /* search free region for PCI MEM */
+                for (; mem_size >= min_size; mem_size /= 2) {
+                        if (allocate_resource(&iomem_resource,
+                                              &pcic->mem_resource[0],
+                                              mem_size, min, max,
+                                              mem_size, NULL, NULL) == 0)
+                                break;
+                }
+                if (mem_size < min_size)
+                        goto free_and_exit;
+        }
+
+        pcic->mem_resource[1].flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+        if (io_base) {
+                pcic->mem_resource[1].start = io_base;
+                pcic->mem_resource[1].end = io_base + io_size - 1;
+                if (request_resource(&iomem_resource, &pcic->mem_resource[1]))
+                        goto release_and_exit;
+        } else {
+                if (!io_size)
+                        /* default size for auto assignment */
+                        io_size = 0x01000000;   /* io:16M(max) */
+                /* search free region for PCI IO in low 512MB */
+                for (; io_size >= min_size; io_size /= 2) {
+                        if (allocate_resource(&iomem_resource,
+                                              &pcic->mem_resource[1],
+                                              io_size, 0, 0x20000000,
+                                              io_size, NULL, NULL) == 0)
+                                break;
+                }
+                if (io_size < min_size)
+                        goto release_and_exit;
+                io_base = pcic->mem_resource[1].start;
+        }
+
+        pcic->mem_resource[0].flags = IORESOURCE_MEM;
+        if (pcic == &txx9_primary_pcic &&
+            mips_io_port_base == (unsigned long)-1) {
+                /* map ioport 0 to PCI I/O space address 0 */
+                set_io_port_base(IO_BASE + pcic->mem_resource[1].start);
+                pcic->io_resource->start = 0;
+                pcic->io_offset = 0;    /* busaddr == ioaddr */
+                pcic->io_map_base = IO_BASE + pcic->mem_resource[1].start;
+        } else {
+                /* physaddr to ioaddr */
+                pcic->io_resource->start =
+                        io_base - (mips_io_port_base - IO_BASE);
+                pcic->io_offset = io_base - (mips_io_port_base - IO_BASE);
+                pcic->io_map_base = mips_io_port_base;
+        }
+        pcic->io_resource->end = pcic->io_resource->start + io_size - 1;
+
+        pcic->mem_offset = 0;   /* busaddr == physaddr */
+
+        printk(KERN_INFO "PCI: IO 0x%08llx-0x%08llx MEM 0x%08llx-0x%08llx\n",
+               (unsigned long long)pcic->mem_resource[1].start,
+               (unsigned long long)pcic->mem_resource[1].end,
+               (unsigned long long)pcic->mem_resource[0].start,
+               (unsigned long long)pcic->mem_resource[0].end);
+
+        /* register_pci_controller() will request MEM resource */
+        release_resource(&pcic->mem_resource[0]);
+        return pcic;
+ release_and_exit:
+        release_resource(&pcic->mem_resource[0]);
+ free_and_exit:
+        kfree(new);
+        printk(KERN_ERR "PCI: Failed to allocate resources.\n");
+        return NULL;
+}
+
+static int __init
+txx9_arch_pci_init(void)
+{
+        PCIBIOS_MIN_IO = 0x8000;        /* reseve legacy I/O space */
+        return 0;
+}
+arch_initcall(txx9_arch_pci_init);
+
+/* IRQ/IDSEL mapping */
+int txx9_pci_option =
+#ifdef CONFIG_PICMG_PCI_BACKPLANE_DEFAULT
+        TXX9_PCI_OPT_PICMG |
+#endif
+        TXX9_PCI_OPT_CLK_AUTO;
+
+enum txx9_pci_err_action txx9_pci_err_action = TXX9_PCI_ERR_REPORT;
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static irqreturn_t i8259_interrupt(int irq, void *dev_id)
+{
+        int isairq;
+
+        isairq = i8259_irq();
+        if (unlikely(isairq <= I8259A_IRQ_BASE))
+                return IRQ_NONE;
+        generic_handle_irq(isairq);
+        return IRQ_HANDLED;
+}
+
+static int __init
+txx9_i8259_irq_setup(int irq)
+{
+        int err;
+
+        init_i8259_irqs();
+        err = request_irq(irq, &i8259_interrupt, IRQF_DISABLED|IRQF_SHARED,
+                          "cascade(i8259)", (void *)(long)irq);
+        if (!err)
+                printk(KERN_INFO "PCI-ISA bridge PIC (irq %d)\n", irq);
+        return err;
+}
+
+static void __init quirk_slc90e66_bridge(struct pci_dev *dev)
+{
+        int irq;        /* PCI/ISA Bridge interrupt */
+        u8 reg_64;
+        u32 reg_b0;
+        u8 reg_e1;
+        irq = pcibios_map_irq(dev, PCI_SLOT(dev->devfn), 1); /* INTA */
+        if (!irq)
+                return;
+        txx9_i8259_irq_setup(irq);
+        pci_read_config_byte(dev, 0x64, &reg_64);
+        pci_read_config_dword(dev, 0xb0, &reg_b0);
+        pci_read_config_byte(dev, 0xe1, &reg_e1);
+        /* serial irq control */
+        reg_64 = 0xd0;
+        /* serial irq pin */
+        reg_b0 |= 0x00010000;
+        /* ide irq on isa14 */
+        reg_e1 &= 0xf0;
+        reg_e1 |= 0x0d;
+        pci_write_config_byte(dev, 0x64, reg_64);
+        pci_write_config_dword(dev, 0xb0, reg_b0);
+        pci_write_config_byte(dev, 0xe1, reg_e1);
+
+        smsc_fdc37m81x_init(0x3f0);
+        smsc_fdc37m81x_config_beg();
+        smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
+                                  SMSC_FDC37M81X_KBD);
+        smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
+        smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
+        smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
+                                  1);
+        smsc_fdc37m81x_config_end();
+}
+
+static void quirk_slc90e66_ide(struct pci_dev *dev)
+{
+        unsigned char dat;
+        int regs[2] = {0x41, 0x43};
+        int i;
+
+        /* SMSC SLC90E66 IDE uses irq 14, 15 (default) */
+        pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 14);
+        pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &dat);
+        printk(KERN_INFO "PCI: %s: IRQ %02x", pci_name(dev), dat);
+        /* enable SMSC SLC90E66 IDE */
+        for (i = 0; i < ARRAY_SIZE(regs); i++) {
+                pci_read_config_byte(dev, regs[i], &dat);
+                pci_write_config_byte(dev, regs[i], dat | 0x80);
+                pci_read_config_byte(dev, regs[i], &dat);
+                printk(KERN_CONT " IDETIM%d %02x", i, dat);
+        }
+        pci_read_config_byte(dev, 0x5c, &dat);
+        /*
+         * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+         *
+         * This line of code is intended to provide the user with a work
+         * around solution to the anomalies cited in SMSC's anomaly sheet
+         * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
+         *
+         * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+         */
+        dat |= 0x01;
+        pci_write_config_byte(dev, regs[i], dat);
+        pci_read_config_byte(dev, 0x5c, &dat);
+        printk(KERN_CONT " REG5C %02x", dat);
+        printk(KERN_CONT "\n");
+}
+#endif /* CONFIG_TOSHIBA_FPCIB0 */
+
+static void final_fixup(struct pci_dev *dev)
+{
+        unsigned char bist;
+
+        /* Do build-in self test */
+        if (pci_read_config_byte(dev, PCI_BIST, &bist) == PCIBIOS_SUCCESSFUL &&
+            (bist & PCI_BIST_CAPABLE)) {
+                unsigned long timeout;
+                pci_set_power_state(dev, PCI_D0);
+                printk(KERN_INFO "PCI: %s BIST...", pci_name(dev));
+                pci_write_config_byte(dev, PCI_BIST, PCI_BIST_START);
+                timeout = jiffies + HZ * 2;     /* timeout after 2 sec */
+                do {
+                        pci_read_config_byte(dev, PCI_BIST, &bist);
+                        if (time_after(jiffies, timeout))
+                                break;
+                } while (bist & PCI_BIST_START);
+                if (bist & (PCI_BIST_CODE_MASK | PCI_BIST_START))
+                        printk(KERN_CONT "failed. (0x%x)\n", bist);
+                else
+                        printk(KERN_CONT "OK.\n");
+        }
+}
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#define PCI_DEVICE_ID_EFAR_SLC90E66_0 0x9460
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_0,
+        quirk_slc90e66_bridge);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1,
+        quirk_slc90e66_ide);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1,
+        quirk_slc90e66_ide);
+#endif
+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, final_fixup);
+DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, final_fixup);
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+        return 0;
+}
+
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        return txx9_board_vec->pci_map_irq(dev, slot, pin);
+}
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
new file mode 100644
index 00000000000..5afc5d5cab0
--- /dev/null
+++ b/arch/mips/txx9/generic/setup.c
@@ -0,0 +1,212 @@
+/*
+ * linux/arch/mips/txx9/generic/setup.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ *          and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#ifdef CONFIG_CPU_TX49XX
+#include <asm/txx9/tx4938.h>
+#endif
+
+/* EBUSC settings of TX4927, etc. */
+struct resource txx9_ce_res[8];
+static char txx9_ce_res_name[8][4];     /* "CEn" */
+
+/* pcode, internal register */
+char txx9_pcode_str[8];
+static struct resource txx9_reg_res = {
+        .name = txx9_pcode_str,
+        .flags = IORESOURCE_MEM,
+};
+void __init
+txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
+{
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
+                sprintf(txx9_ce_res_name[i], "CE%d", i);
+                txx9_ce_res[i].flags = IORESOURCE_MEM;
+                txx9_ce_res[i].name = txx9_ce_res_name[i];
+        }
+
+        sprintf(txx9_pcode_str, "TX%x", pcode);
+        if (base) {
+                txx9_reg_res.start = base & 0xfffffffffULL;
+                txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
+                request_resource(&iomem_resource, &txx9_reg_res);
+        }
+}
+
+/* clocks */
+unsigned int txx9_master_clock;
+unsigned int txx9_cpu_clock;
+unsigned int txx9_gbus_clock;
+
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+        if (!strcmp(id, "spi-baseclk"))
+                return (struct clk *)(txx9_gbus_clock / 2 / 4);
+        if (!strcmp(id, "imbus_clk"))
+                return (struct clk *)(txx9_gbus_clock / 2);
+        return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+        return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+        return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
+
+extern struct txx9_board_vec jmr3927_vec;
+extern struct txx9_board_vec rbtx4927_vec;
+extern struct txx9_board_vec rbtx4937_vec;
+extern struct txx9_board_vec rbtx4938_vec;
+
+struct txx9_board_vec *txx9_board_vec __initdata;
+static char txx9_system_type[32];
+
+void __init prom_init_cmdline(void)
+{
+        int argc = (int)fw_arg0;
+        char **argv = (char **)fw_arg1;
+        int i;                  /* Always ignore the "-c" at argv[0] */
+
+        /* ignore all built-in args if any f/w args given */
+        if (argc > 1)
+                *arcs_cmdline = '\0';
+
+        for (i = 1; i < argc; i++) {
+                if (i != 1)
+                        strcat(arcs_cmdline, " ");
+                strcat(arcs_cmdline, argv[i]);
+        }
+}
+
+void __init prom_init(void)
+{
+#ifdef CONFIG_CPU_TX39XX
+        txx9_board_vec = &jmr3927_vec;
+#endif
+#ifdef CONFIG_CPU_TX49XX
+        switch (TX4938_REV_PCODE()) {
+        case 0x4927:
+                txx9_board_vec = &rbtx4927_vec;
+                break;
+        case 0x4937:
+                txx9_board_vec = &rbtx4937_vec;
+                break;
+        case 0x4938:
+                txx9_board_vec = &rbtx4938_vec;
+                break;
+        }
+#endif
+
+        strcpy(txx9_system_type, txx9_board_vec->system);
+
+        txx9_board_vec->prom_init();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+const char *get_system_type(void)
+{
+        return txx9_system_type;
+}
+
+char * __init prom_getcmdline(void)
+{
+        return &(arcs_cmdline[0]);
+}
+
+/* wrappers */
+void __init plat_mem_setup(void)
+{
+        txx9_board_vec->mem_setup();
+}
+
+void __init arch_init_irq(void)
+{
+        txx9_board_vec->irq_setup();
+}
+
+void __init plat_time_init(void)
+{
+        txx9_board_vec->time_init();
+}
+
+static int __init _txx9_arch_init(void)
+{
+        if (txx9_board_vec->arch_init)
+                txx9_board_vec->arch_init();
+        return 0;
+}
+arch_initcall(_txx9_arch_init);
+
+static int __init _txx9_device_init(void)
+{
+        if (txx9_board_vec->device_init)
+                txx9_board_vec->device_init();
+        return 0;
+}
+device_initcall(_txx9_device_init);
+
+int (*txx9_irq_dispatch)(int pending);
+asmlinkage void plat_irq_dispatch(void)
+{
+        int pending = read_c0_status() & read_c0_cause() & ST0_IM;
+        int irq = txx9_irq_dispatch(pending);
+
+        if (likely(irq >= 0))
+                do_IRQ(irq);
+        else
+                spurious_interrupt();
+}
+
+/* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
+#ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
+static unsigned long __swizzle_addr_none(unsigned long port)
+{
+        return port;
+}
+unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
+EXPORT_SYMBOL(__swizzle_addr_b);
+#endif
diff --git a/arch/mips/tx4927/common/smsc_fdc37m81x.c b/arch/mips/txx9/generic/smsc_fdc37m81x.c
index 33f517bc9a0..69e487467fa 100644
--- a/arch/mips/tx4927/common/smsc_fdc37m81x.c
+++ b/arch/mips/txx9/generic/smsc_fdc37m81x.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <asm/io.h>
-#include <asm/tx4927/smsc_fdc37m81x.h>
+#include <asm/txx9/smsc_fdc37m81x.h>
 
 #define DEBUG
 
diff --git a/arch/mips/jmr3927/rbhma3100/Makefile b/arch/mips/txx9/jmr3927/Makefile
index d86e30dca8f..ba292c94566 100644
--- a/arch/mips/jmr3927/rbhma3100/Makefile
+++ b/arch/mips/txx9/jmr3927/Makefile
@@ -2,7 +2,7 @@
 # Makefile for TOSHIBA JMR-TX3927 board
 #
 
-obj-y                           += init.o irq.o setup.o
-obj-$(CONFIG_KGDB)              += kgdb_io.o
+obj-y   += prom.o irq.o setup.o
+obj-$(CONFIG_KGDB)      += kgdb_io.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/jmr3927/rbhma3100/irq.c b/arch/mips/txx9/jmr3927/irq.c
index 3a47e8ce119..070c9a115e5 100644
--- a/arch/mips/jmr3927/rbhma3100/irq.c
+++ b/arch/mips/txx9/jmr3927/irq.c
@@ -39,7 +39,8 @@
 #include <asm/system.h>
 
 #include <asm/processor.h>
-#include <asm/jmr3927/jmr3927.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/jmr3927.h>
 
 #if JMR3927_IRQ_END > NR_IRQS
 #error JMR3927_IRQ_END > NR_IRQS
@@ -77,38 +78,32 @@ static void unmask_irq_ioc(unsigned int irq)
         (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
 }
 
-asmlinkage void plat_irq_dispatch(void)
-{
-        unsigned long cp0_cause = read_c0_cause();
-        int irq;
-
-        if ((cp0_cause & CAUSEF_IP7) == 0)
-                return;
-        irq = (cp0_cause >> CAUSEB_IP2) & 0x0f;
-
-        do_IRQ(irq + JMR3927_IRQ_IRC);
-}
-
-static irqreturn_t jmr3927_ioc_interrupt(int irq, void *dev_id)
+static int jmr3927_ioc_irqroute(void)
 {
         unsigned char istat = jmr3927_ioc_reg_in(JMR3927_IOC_INTS2_ADDR);
         int i;
 
         for (i = 0; i < JMR3927_NR_IRQ_IOC; i++) {
-                if (istat & (1 << i)) {
-                        irq = JMR3927_IRQ_IOC + i;
-                        do_IRQ(irq);
-                }
+                if (istat & (1 << i))
+                        return JMR3927_IRQ_IOC + i;
         }
-        return IRQ_HANDLED;
+        return -1;
 }
 
-static struct irqaction ioc_action = {
-        .handler = jmr3927_ioc_interrupt,
-        .mask = CPU_MASK_NONE,
-        .name = "IOC",
-};
+static int jmr3927_irq_dispatch(int pending)
+{
+        int irq;
 
+        if ((pending & CAUSEF_IP7) == 0)
+                return -1;
+        irq = (pending >> CAUSEB_IP2) & 0x0f;
+        irq += JMR3927_IRQ_IRC;
+        if (irq == JMR3927_IRQ_IOCINT)
+                irq = jmr3927_ioc_irqroute();
+        return irq;
+}
+
+#ifdef CONFIG_PCI
 static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id)
 {
         printk(KERN_WARNING "PCI error interrupt (irq 0x%x).\n", irq);
@@ -122,11 +117,13 @@ static struct irqaction pcierr_action = {
         .mask = CPU_MASK_NONE,
         .name = "PCI error",
 };
+#endif
 
 static void __init jmr3927_irq_init(void);
 
-void __init arch_init_irq(void)
+void __init jmr3927_irq_setup(void)
 {
+        txx9_irq_dispatch = jmr3927_irq_dispatch;
         /* Now, interrupt control disabled, */
         /* all IRC interrupts are masked, */
         /* all IRC interrupt mode are Low Active. */
@@ -144,7 +141,7 @@ void __init arch_init_irq(void)
         jmr3927_irq_init();
 
         /* setup IOC interrupt 1 (PCI, MODEM) */
-        setup_irq(JMR3927_IRQ_IOCINT, &ioc_action);
+        set_irq_chained_handler(JMR3927_IRQ_IOCINT, handle_simple_irq);
 
 #ifdef CONFIG_PCI
         setup_irq(JMR3927_IRQ_IRC_PCI, &pcierr_action);
diff --git a/arch/mips/jmr3927/rbhma3100/kgdb_io.c b/arch/mips/txx9/jmr3927/kgdb_io.c
index 342579cfdc0..5bd757e56f7 100644
--- a/arch/mips/jmr3927/rbhma3100/kgdb_io.c
+++ b/arch/mips/txx9/jmr3927/kgdb_io.c
@@ -31,7 +31,7 @@
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include <asm/jmr3927/jmr3927.h>
+#include <asm/txx9/jmr3927.h>
 
 #define TIMEOUT       0xffffff
 
diff --git a/arch/mips/jmr3927/common/prom.c b/arch/mips/txx9/jmr3927/prom.c
index 5398813e50e..2cadb423fac 100644
--- a/arch/mips/jmr3927/common/prom.c
+++ b/arch/mips/txx9/jmr3927/prom.c
@@ -35,38 +35,42 @@
  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
-#include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/string.h>
-
 #include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/jmr3927.h>
 
-char * __init prom_getcmdline(void)
-{
-        return &(arcs_cmdline[0]);
-}
+#define TIMEOUT       0xffffff
 
-void  __init prom_init_cmdline(void)
+void
+prom_putchar(char c)
 {
-        char *cp;
-        int actr;
-        int prom_argc = fw_arg0;
-        char **prom_argv = (char **) fw_arg1;
+        int i = 0;
 
-        actr = 1; /* Always ignore argv[0] */
+        do {
+            i++;
+            if (i>TIMEOUT)
+                break;
+        } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+        tx3927_sioptr(1)->tfifo = c;
+        return;
+}
 
-        cp = &(arcs_cmdline[0]);
-        while(actr < prom_argc) {
-                strcpy(cp, prom_argv[actr]);
-                cp += strlen(prom_argv[actr]);
-                *cp++ = ' ';
-                actr++;
-        }
-        if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
-                --cp;
-        *cp = '\0';
+void
+puts(const char *cp)
+{
+    while (*cp)
+        prom_putchar(*cp++);
+    prom_putchar('\r');
+    prom_putchar('\n');
 }
 
-void __init prom_free_prom_memory(void)
+void __init jmr3927_prom_init(void)
 {
+        /* CCFG */
+        if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
+                puts("Warning: TX3927 TLB off\n");
+
+        prom_init_cmdline();
+        add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
 }
diff --git a/arch/mips/jmr3927/rbhma3100/setup.c b/arch/mips/txx9/jmr3927/setup.c
index f39c444e42d..5e35ef73c5a 100644
--- a/arch/mips/jmr3927/rbhma3100/setup.c
+++ b/arch/mips/txx9/jmr3927/setup.c
@@ -30,21 +30,20 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
-#include <linux/pci.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/platform_device.h>
-#include <linux/clk.h>
 #include <linux/gpio.h>
 #ifdef CONFIG_SERIAL_TXX9
 #include <linux/serial_core.h>
 #endif
-
 #include <asm/txx9tmr.h>
 #include <asm/txx9pio.h>
 #include <asm/reboot.h>
-#include <asm/jmr3927/jmr3927.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/jmr3927.h>
 #include <asm/mipsregs.h>
 
 extern void puts(const char *cp);
@@ -83,7 +82,7 @@ static void jmr3927_machine_power_off(void)
         while (1);
 }
 
-void __init plat_time_init(void)
+static void __init jmr3927_time_init(void)
 {
         txx9_clockevent_init(TX3927_TMR_REG(0),
                              TXX9_IRQ_BASE + JMR3927_IRQ_IRC_TMR(0),
@@ -94,12 +93,9 @@ void __init plat_time_init(void)
 #define DO_WRITE_THROUGH
 #define DO_ENABLE_CACHE
 
-extern char * __init prom_getcmdline(void);
 static void jmr3927_board_init(void);
-extern struct resource pci_io_resource;
-extern struct resource pci_mem_resource;
 
-void __init plat_mem_setup(void)
+static void __init jmr3927_mem_setup(void)
 {
         char *argptr;
 
@@ -112,8 +108,8 @@ void __init plat_mem_setup(void)
         /*
          * IO/MEM resources.
          */
-        ioport_resource.start = pci_io_resource.start;
-        ioport_resource.end = pci_io_resource.end;
+        ioport_resource.start = 0;
+        ioport_resource.end = 0xffffffff;
         iomem_resource.start = 0;
         iomem_resource.end = 0xffffffff;
 
@@ -191,9 +187,33 @@ void __init plat_mem_setup(void)
 
 static void tx3927_setup(void);
 
+static void __init jmr3927_pci_setup(void)
+{
+#ifdef CONFIG_PCI
+        int extarb = !(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB);
+        struct pci_controller *c;
+
+        c = txx9_alloc_pci_controller(&txx9_primary_pcic,
+                                      JMR3927_PCIMEM, JMR3927_PCIMEM_SIZE,
+                                      JMR3927_PCIIO, JMR3927_PCIIO_SIZE);
+        register_pci_controller(c);
+        if (!extarb) {
+                /* Reset PCI Bus */
+                jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+                udelay(100);
+                jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
+                                    JMR3927_IOC_RESET_ADDR);
+                udelay(100);
+                jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+        }
+        tx3927_pcic_setup(c, JMR3927_SDRAM_SIZE, extarb);
+#endif /* CONFIG_PCI */
+}
+
 static void __init jmr3927_board_init(void)
 {
         tx3927_setup();
+        jmr3927_pci_setup();
 
         /* SIO0 DTR on */
         jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
@@ -210,15 +230,9 @@ static void __init jmr3927_board_init(void)
 static void __init tx3927_setup(void)
 {
         int i;
-#ifdef CONFIG_PCI
-        unsigned long mips_pci_io_base = JMR3927_PCIIO;
-        unsigned long mips_pci_io_size = JMR3927_PCIIO_SIZE;
-        unsigned long mips_pci_mem_base = JMR3927_PCIMEM;
-        unsigned long mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
-        /* for legacy I/O, PCI I/O PCI Bus address must be 0 */
-        unsigned long mips_pci_io_pciaddr = 0;
-#endif
 
+        txx9_cpu_clock = JMR3927_CORECLK;
+        txx9_gbus_clock = JMR3927_GBUSCLK;
         /* SDRAMC are configured by PROM */
 
         /* ROMC */
@@ -272,74 +286,6 @@ static void __init tx3927_setup(void)
         tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN | TX3927_DMA_MCR_LE;
 #endif
 
-#ifdef CONFIG_PCI
-        /* PCIC */
-        printk("TX3927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:",
-               tx3927_pcicptr->did, tx3927_pcicptr->vid,
-               tx3927_pcicptr->rid);
-        if (!(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB)) {
-                printk("External\n");
-                /* XXX */
-        } else {
-                printk("Internal\n");
-
-                /* Reset PCI Bus */
-                jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
-                udelay(100);
-                jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
-                                    JMR3927_IOC_RESET_ADDR);
-                udelay(100);
-                jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
-
-
-                /* Disable External PCI Config. Access */
-                tx3927_pcicptr->lbc = TX3927_PCIC_LBC_EPCAD;
-#ifdef __BIG_ENDIAN
-                tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_IBSE |
-                        TX3927_PCIC_LBC_TIBSE |
-                        TX3927_PCIC_LBC_TMFBSE | TX3927_PCIC_LBC_MSDSE;
-#endif
-                /* LB->PCI mappings */
-                tx3927_pcicptr->iomas = ~(mips_pci_io_size - 1);
-                tx3927_pcicptr->ilbioma = mips_pci_io_base;
-                tx3927_pcicptr->ipbioma = mips_pci_io_pciaddr;
-                tx3927_pcicptr->mmas = ~(mips_pci_mem_size - 1);
-                tx3927_pcicptr->ilbmma = mips_pci_mem_base;
-                tx3927_pcicptr->ipbmma = mips_pci_mem_base;
-                /* PCI->LB mappings */
-                tx3927_pcicptr->iobas = 0xffffffff;
-                tx3927_pcicptr->ioba = 0;
-                tx3927_pcicptr->tlbioma = 0;
-                tx3927_pcicptr->mbas = ~(mips_pci_mem_size - 1);
-                tx3927_pcicptr->mba = 0;
-                tx3927_pcicptr->tlbmma = 0;
-                /* Enable Direct mapping Address Space Decoder */
-                tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_ILMDE | TX3927_PCIC_LBC_ILIDE;
-
-                /* Clear All Local Bus Status */
-                tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
-                /* Enable All Local Bus Interrupts */
-                tx3927_pcicptr->lbim = TX3927_PCIC_LBIM_ALL;
-                /* Clear All PCI Status Error */
-                tx3927_pcicptr->pcistat = TX3927_PCIC_PCISTATIM_ALL;
-                /* Enable All PCI Status Error Interrupts */
-                tx3927_pcicptr->pcistatim = TX3927_PCIC_PCISTATIM_ALL;
-
-                /* PCIC Int => IRC IRQ10 */
-                tx3927_pcicptr->il = TX3927_IR_PCI;
-                /* Target Control (per errata) */
-                tx3927_pcicptr->tc = TX3927_PCIC_TC_OF8E | TX3927_PCIC_TC_IF8E;
-
-                /* Enable Bus Arbiter */
-                tx3927_pcicptr->pbapmc = TX3927_PCIC_PBAPMC_PBAEN;
-
-                tx3927_pcicptr->pcicmd = PCI_COMMAND_MASTER |
-                        PCI_COMMAND_MEMORY |
-                        PCI_COMMAND_IO |
-                        PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
-        }
-#endif /* CONFIG_PCI */
-
         /* PIO */
         /* PIO[15:12] connected to LEDs */
         __raw_writel(0x0000f000, &tx3927_pioptr->dir);
@@ -366,7 +312,7 @@ static void __init tx3927_setup(void)
 }
 
 /* This trick makes rtc-ds1742 driver usable as is. */
-unsigned long __swizzle_addr_b(unsigned long port)
+static unsigned long jmr3927_swizzle_addr_b(unsigned long port)
 {
         if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
                 return port;
@@ -377,7 +323,6 @@ unsigned long __swizzle_addr_b(unsigned long port)
         return port | 1;
 #endif
 }
-EXPORT_SYMBOL(__swizzle_addr_b);
 
 static int __init jmr3927_rtc_init(void)
 {
@@ -390,7 +335,6 @@ static int __init jmr3927_rtc_init(void)
         dev = platform_device_register_simple("rtc-ds1742", -1, &res, 1);
         return IS_ERR(dev) ? PTR_ERR(dev) : 0;
 }
-device_initcall(jmr3927_rtc_init);
 
 /* Watchdog support */
 
@@ -410,36 +354,22 @@ static int __init jmr3927_wdt_init(void)
 {
         return txx9_wdt_init(TX3927_TMR_REG(2));
 }
-device_initcall(jmr3927_wdt_init);
 
-/* Minimum CLK support */
-
-struct clk *clk_get(struct device *dev, const char *id)
+static void __init jmr3927_device_init(void)
 {
-        if (!strcmp(id, "imbus_clk"))
-                return (struct clk *)JMR3927_IMCLK;
-        return ERR_PTR(-ENOENT);
+        __swizzle_addr_b = jmr3927_swizzle_addr_b;
+        jmr3927_rtc_init();
+        jmr3927_wdt_init();
 }
-EXPORT_SYMBOL(clk_get);
 
-int clk_enable(struct clk *clk)
-{
-        return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_disable);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
-        return (unsigned long)clk;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
+struct txx9_board_vec jmr3927_vec __initdata = {
+        .system = "Toshiba JMR_TX3927",
+        .prom_init = jmr3927_prom_init,
+        .mem_setup = jmr3927_mem_setup,
+        .irq_setup = jmr3927_irq_setup,
+        .time_init = jmr3927_time_init,
+        .device_init = jmr3927_device_init,
+#ifdef CONFIG_PCI
+        .pci_map_irq = jmr3927_pci_map_irq,
+#endif
+};
diff --git a/arch/mips/txx9/rbtx4927/Makefile b/arch/mips/txx9/rbtx4927/Makefile
new file mode 100644
index 00000000000..f3e1f597b4f
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/Makefile
@@ -0,0 +1,3 @@
+obj-y   += prom.o setup.o irq.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/rbtx4927/irq.c b/arch/mips/txx9/rbtx4927/irq.c
new file mode 100644
index 00000000000..70f13211bc2
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/irq.c
@@ -0,0 +1,199 @@
+/*
+ * Toshiba RBTX4927 specific interrupt handlers
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/*
+IRQ  Device
+00   RBTX4927-ISA/00
+01   RBTX4927-ISA/01 PS2/Keyboard
+02   RBTX4927-ISA/02 Cascade RBTX4927-ISA (irqs 8-15)
+03   RBTX4927-ISA/03
+04   RBTX4927-ISA/04
+05   RBTX4927-ISA/05
+06   RBTX4927-ISA/06
+07   RBTX4927-ISA/07
+08   RBTX4927-ISA/08
+09   RBTX4927-ISA/09
+10   RBTX4927-ISA/10
+11   RBTX4927-ISA/11
+12   RBTX4927-ISA/12 PS2/Mouse (not supported at this time)
+13   RBTX4927-ISA/13
+14   RBTX4927-ISA/14 IDE
+15   RBTX4927-ISA/15
+
+16   TX4927-CP0/00 Software 0
+17   TX4927-CP0/01 Software 1
+18   TX4927-CP0/02 Cascade TX4927-CP0
+19   TX4927-CP0/03 Multiplexed -- do not use
+20   TX4927-CP0/04 Multiplexed -- do not use
+21   TX4927-CP0/05 Multiplexed -- do not use
+22   TX4927-CP0/06 Multiplexed -- do not use
+23   TX4927-CP0/07 CPU TIMER
+
+24   TX4927-PIC/00
+25   TX4927-PIC/01
+26   TX4927-PIC/02
+27   TX4927-PIC/03 Cascade RBTX4927-IOC
+28   TX4927-PIC/04
+29   TX4927-PIC/05 RBTX4927 RTL-8019AS ethernet
+30   TX4927-PIC/06
+31   TX4927-PIC/07
+32   TX4927-PIC/08 TX4927 SerialIO Channel 0
+33   TX4927-PIC/09 TX4927 SerialIO Channel 1
+34   TX4927-PIC/10
+35   TX4927-PIC/11
+36   TX4927-PIC/12
+37   TX4927-PIC/13
+38   TX4927-PIC/14
+39   TX4927-PIC/15
+40   TX4927-PIC/16 TX4927 PCI PCI-C
+41   TX4927-PIC/17
+42   TX4927-PIC/18
+43   TX4927-PIC/19
+44   TX4927-PIC/20
+45   TX4927-PIC/21
+46   TX4927-PIC/22 TX4927 PCI PCI-ERR
+47   TX4927-PIC/23 TX4927 PCI PCI-PMA (not used)
+48   TX4927-PIC/24
+49   TX4927-PIC/25
+50   TX4927-PIC/26
+51   TX4927-PIC/27
+52   TX4927-PIC/28
+53   TX4927-PIC/29
+54   TX4927-PIC/30
+55   TX4927-PIC/31
+
+56 RBTX4927-IOC/00 FPCIB0 PCI-D PJ4/A PJ5/B SB/C PJ6/D PJ7/A (SouthBridge/NotUsed)        [RTL-8139=PJ4]
+57 RBTX4927-IOC/01 FPCIB0 PCI-C PJ4/D PJ5/A SB/B PJ6/C PJ7/D (SouthBridge/NotUsed)        [RTL-8139=PJ5]
+58 RBTX4927-IOC/02 FPCIB0 PCI-B PJ4/C PJ5/D SB/A PJ6/B PJ7/C (SouthBridge/IDE/pin=1,INTR) [RTL-8139=NotSupported]
+59 RBTX4927-IOC/03 FPCIB0 PCI-A PJ4/B PJ5/C SB/D PJ6/A PJ7/B (SouthBridge/USB/pin=4)      [RTL-8139=PJ6]
+60 RBTX4927-IOC/04
+61 RBTX4927-IOC/05
+62 RBTX4927-IOC/06
+63 RBTX4927-IOC/07
+
+NOTES:
+SouthBridge/INTR is mapped to SouthBridge/A=PCI-B/#58
+SouthBridge/ISA/pin=0 no pci irq used by this device
+SouthBridge/IDE/pin=1 no pci irq used by this device, using INTR via ISA IRQ14
+SouthBridge/USB/pin=4 using pci irq SouthBridge/D=PCI-A=#59
+SouthBridge/PMC/pin=0 no pci irq used by this device
+SuperIO/PS2/Keyboard, using INTR via ISA IRQ1
+SuperIO/PS2/Mouse, using INTR via ISA IRQ12 (mouse not currently supported)
+JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthBridge, JP4, JP5, JP6
+*/
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/rbtx4927.h>
+
+static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq);
+static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
+
+#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
+static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
+        .name = TOSHIBA_RBTX4927_IOC_NAME,
+        .ack = toshiba_rbtx4927_irq_ioc_disable,
+        .mask = toshiba_rbtx4927_irq_ioc_disable,
+        .mask_ack = toshiba_rbtx4927_irq_ioc_disable,
+        .unmask = toshiba_rbtx4927_irq_ioc_enable,
+};
+#define TOSHIBA_RBTX4927_IOC_INTR_ENAB (void __iomem *)0xbc002000UL
+#define TOSHIBA_RBTX4927_IOC_INTR_STAT (void __iomem *)0xbc002006UL
+
+static int toshiba_rbtx4927_irq_nested(int sw_irq)
+{
+        u8 level3;
+
+        level3 = readb(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
+        if (level3)
+                sw_irq = RBTX4927_IRQ_IOC + fls(level3) - 1;
+        return (sw_irq);
+}
+
+static void __init toshiba_rbtx4927_irq_ioc_init(void)
+{
+        int i;
+
+        for (i = RBTX4927_IRQ_IOC;
+             i < RBTX4927_IRQ_IOC + RBTX4927_NR_IRQ_IOC; i++)
+                set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type,
+                                         handle_level_irq);
+        set_irq_chained_handler(RBTX4927_IRQ_IOCINT, handle_simple_irq);
+}
+
+static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq)
+{
+        unsigned char v;
+
+        v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+        v |= (1 << (irq - RBTX4927_IRQ_IOC));
+        writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+}
+
+static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq)
+{
+        unsigned char v;
+
+        v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+        v &= ~(1 << (irq - RBTX4927_IRQ_IOC));
+        writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+        mmiowb();
+}
+
+
+static int rbtx4927_irq_dispatch(int pending)
+{
+        int irq;
+
+        if (pending & STATUSF_IP7)                      /* cpu timer */
+                irq = MIPS_CPU_IRQ_BASE + 7;
+        else if (pending & STATUSF_IP2) {               /* tx4927 pic */
+                irq = txx9_irq();
+                if (irq == RBTX4927_IRQ_IOCINT)
+                        irq = toshiba_rbtx4927_irq_nested(irq);
+        } else if (pending & STATUSF_IP0)               /* user line 0 */
+                irq = MIPS_CPU_IRQ_BASE + 0;
+        else if (pending & STATUSF_IP1)                 /* user line 1 */
+                irq = MIPS_CPU_IRQ_BASE + 1;
+        else
+                irq = -1;
+        return irq;
+}
+
+void __init rbtx4927_irq_setup(void)
+{
+        txx9_irq_dispatch = rbtx4927_irq_dispatch;
+        tx4927_irq_init();
+        toshiba_rbtx4927_irq_ioc_init();
+        /* Onboard 10M Ether: High Active */
+        set_irq_type(RBTX4927_RTL_8019_IRQ, IRQF_TRIGGER_HIGH);
+}
diff --git a/arch/mips/tx4927/common/tx4927_dbgio.c b/arch/mips/txx9/rbtx4927/prom.c
index d8423e001b2..942e627d2dc 100644
--- a/arch/mips/tx4927/common/tx4927_dbgio.c
+++ b/arch/mips/txx9/rbtx4927/prom.c
@@ -1,13 +1,14 @@
 /*
- * linux/arch/mips/tx4927/common/tx4927_dbgio.c
- *
- * kgdb interface for gdb
+ * rbtx4927 specific prom routines
  *
  * Author: MontaVista Software, Inc.
  *         source@mvista.com
  *
  * Copyright 2001-2002 MontaVista Software Inc.
  *
+ * Copyright (C) 2004 MontaVista Software Inc.
+ * Author: Manish Lachwani, mlachwani@mvista.com
+ *
  *  This program is free software; you can redistribute it and/or modify it
  *  under the terms of the GNU General Public License as published by the
  *  Free Software Foundation; either version 2 of the License, or (at your
@@ -28,19 +29,17 @@
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
+#include <linux/init.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/rbtx4927.h>
 
-#include <asm/mipsregs.h>
-#include <asm/system.h>
-
-u8 getDebugChar(void)
+void __init rbtx4927_prom_init(void)
 {
-        extern u8 txx9_sio_kdbg_rd(void);
-        return (txx9_sio_kdbg_rd());
-}
-
+        extern int tx4927_get_mem_size(void);
+        int msize;
 
-int putDebugChar(u8 byte)
-{
-        extern int txx9_sio_kdbg_wr( u8 ch );
-        return (txx9_sio_kdbg_wr(byte));
+        prom_init_cmdline();
+        msize = tx4927_get_mem_size();
+        add_memory_region(0, msize << 20, BOOT_MEM_RAM);
 }
diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
new file mode 100644
index 00000000000..1657fd935da
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/setup.c
@@ -0,0 +1,443 @@
+/*
+ * Toshiba rbtx4927 specific setup
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * Copyright (C) 1996, 97, 2001, 04  Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: RidgeRun, Inc.
+ *   glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * Copyright 2002 MontaVista Software Inc.
+ * Author: Michael Pruznick, michael_pruznick@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * Copyright (C) 2004 MontaVista Software Inc.
+ * Author: Manish Lachwani, mlachwani@mvista.com
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/rbtx4927.h>
+#include <asm/txx9/tx4938.h>    /* for TX4937 */
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+
+static int tx4927_ccfg_toeon = 1;
+
+#ifdef CONFIG_PCI
+static void __init tx4927_pci_setup(void)
+{
+        int extarb = !(__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCIARB);
+        struct pci_controller *c = &txx9_primary_pcic;
+
+        register_pci_controller(c);
+
+        if (__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCI66)
+                txx9_pci_option =
+                        (txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+                        TXX9_PCI_OPT_CLK_66; /* already configured */
+
+        /* Reset PCI Bus */
+        writeb(1, rbtx4927_pcireset_addr);
+        /* Reset PCIC */
+        txx9_set64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+        if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+            TXX9_PCI_OPT_CLK_66)
+                tx4927_pciclk66_setup();
+        mdelay(10);
+        /* clear PCIC reset */
+        txx9_clear64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+        writeb(0, rbtx4927_pcireset_addr);
+        iob();
+
+        tx4927_report_pciclk();
+        tx4927_pcic_setup(tx4927_pcicptr, c, extarb);
+        if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+            TXX9_PCI_OPT_CLK_AUTO &&
+            txx9_pci66_check(c, 0, 0)) {
+                /* Reset PCI Bus */
+                writeb(1, rbtx4927_pcireset_addr);
+                /* Reset PCIC */
+                txx9_set64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+                tx4927_pciclk66_setup();
+                mdelay(10);
+                /* clear PCIC reset */
+                txx9_clear64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+                writeb(0, rbtx4927_pcireset_addr);
+                iob();
+                /* Reinitialize PCIC */
+                tx4927_report_pciclk();
+                tx4927_pcic_setup(tx4927_pcicptr, c, extarb);
+        }
+}
+
+static void __init tx4937_pci_setup(void)
+{
+        int extarb = !(__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB);
+        struct pci_controller *c = &txx9_primary_pcic;
+
+        register_pci_controller(c);
+
+        if (__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCI66)
+                txx9_pci_option =
+                        (txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+                        TXX9_PCI_OPT_CLK_66; /* already configured */
+
+        /* Reset PCI Bus */
+        writeb(1, rbtx4927_pcireset_addr);
+        /* Reset PCIC */
+        txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+        if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+            TXX9_PCI_OPT_CLK_66)
+                tx4938_pciclk66_setup();
+        mdelay(10);
+        /* clear PCIC reset */
+        txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+        writeb(0, rbtx4927_pcireset_addr);
+        iob();
+
+        tx4938_report_pciclk();
+        tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+        if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+            TXX9_PCI_OPT_CLK_AUTO &&
+            txx9_pci66_check(c, 0, 0)) {
+                /* Reset PCI Bus */
+                writeb(1, rbtx4927_pcireset_addr);
+                /* Reset PCIC */
+                txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+                tx4938_pciclk66_setup();
+                mdelay(10);
+                /* clear PCIC reset */
+                txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+                writeb(0, rbtx4927_pcireset_addr);
+                iob();
+                /* Reinitialize PCIC */
+                tx4938_report_pciclk();
+                tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+        }
+}
+
+static void __init rbtx4927_arch_init(void)
+{
+        tx4927_pci_setup();
+}
+
+static void __init rbtx4937_arch_init(void)
+{
+        tx4937_pci_setup();
+}
+#else
+#define rbtx4927_arch_init NULL
+#define rbtx4937_arch_init NULL
+#endif /* CONFIG_PCI */
+
+static void __noreturn wait_forever(void)
+{
+        while (1)
+                if (cpu_wait)
+                        (*cpu_wait)();
+}
+
+static void toshiba_rbtx4927_restart(char *command)
+{
+        printk(KERN_NOTICE "System Rebooting...\n");
+
+        /* enable the s/w reset register */
+        writeb(RBTX4927_SW_RESET_ENABLE_SET, RBTX4927_SW_RESET_ENABLE);
+
+        /* wait for enable to be seen */
+        while ((readb(RBTX4927_SW_RESET_ENABLE) &
+                RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
+
+        /* do a s/w reset */
+        writeb(RBTX4927_SW_RESET_DO_SET, RBTX4927_SW_RESET_DO);
+
+        /* do something passive while waiting for reset */
+        local_irq_disable();
+        wait_forever();
+        /* no return */
+}
+
+static void toshiba_rbtx4927_halt(void)
+{
+        printk(KERN_NOTICE "System Halted\n");
+        local_irq_disable();
+        wait_forever();
+        /* no return */
+}
+
+static void toshiba_rbtx4927_power_off(void)
+{
+        toshiba_rbtx4927_halt();
+        /* no return */
+}
+
+static void __init rbtx4927_mem_setup(void)
+{
+        int i;
+        u32 cp0_config;
+        char *argptr;
+
+        /* f/w leaves this on at startup */
+        clear_c0_status(ST0_ERL);
+
+        /* enable caches -- HCP5 does this, pmon does not */
+        cp0_config = read_c0_config();
+        cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
+        write_c0_config(cp0_config);
+
+        ioport_resource.end = 0xffffffff;
+        iomem_resource.end = 0xffffffff;
+
+        _machine_restart = toshiba_rbtx4927_restart;
+        _machine_halt = toshiba_rbtx4927_halt;
+        pm_power_off = toshiba_rbtx4927_power_off;
+
+        for (i = 0; i < TX4927_NR_TMR; i++)
+                txx9_tmr_init(TX4927_TMR_REG(0) & 0xfffffffffULL);
+
+#ifdef CONFIG_PCI
+        txx9_alloc_pci_controller(&txx9_primary_pcic,
+                                  RBTX4927_PCIMEM, RBTX4927_PCIMEM_SIZE,
+                                  RBTX4927_PCIIO, RBTX4927_PCIIO_SIZE);
+#else
+        set_io_port_base(KSEG1 + RBTX4927_ISA_IO_OFFSET);
+#endif
+
+        /* CCFG */
+        /* do reset on watchdog */
+        tx4927_ccfg_set(TX4927_CCFG_WR);
+        /* enable Timeout BusError */
+        if (tx4927_ccfg_toeon)
+                tx4927_ccfg_set(TX4927_CCFG_TOE);
+
+#ifdef CONFIG_SERIAL_TXX9
+        {
+                extern int early_serial_txx9_setup(struct uart_port *port);
+                struct uart_port req;
+                for(i = 0; i < 2; i++) {
+                        memset(&req, 0, sizeof(req));
+                        req.line = i;
+                        req.iotype = UPIO_MEM;
+                        req.membase = (char *)(0xff1ff300 + i * 0x100);
+                        req.mapbase = 0xff1ff300 + i * 0x100;
+                        req.irq = TXX9_IRQ_BASE + TX4927_IR_SIO(i);
+                        req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+                        req.uartclk = 50000000;
+                        early_serial_txx9_setup(&req);
+                }
+        }
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "console=") == NULL) {
+                strcat(argptr, " console=ttyS0,38400");
+        }
+#endif
+#endif
+
+#ifdef CONFIG_ROOT_NFS
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "root=") == NULL) {
+                strcat(argptr, " root=/dev/nfs rw");
+        }
+#endif
+
+#ifdef CONFIG_IP_PNP
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "ip=") == NULL) {
+                strcat(argptr, " ip=any");
+        }
+#endif
+}
+
+static void __init rbtx49x7_common_time_init(void)
+{
+        /* change default value to udelay/mdelay take reasonable time */
+        loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+        mips_hpt_frequency = txx9_cpu_clock / 2;
+        if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS)
+                txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL,
+                                     TXX9_IRQ_BASE + 17,
+                                     50000000);
+}
+
+static void __init rbtx4927_time_init(void)
+{
+        /*
+         * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
+         *
+         * For TX4927:
+         * PCIDIVMODE[12:11]'s initial value is given by S9[4:3] (ON:0, OFF:1).
+         * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
+         * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
+         * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
+         * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
+         * i.e. S9[3]: ON (83MHz), OFF (100MHz)
+         */
+        switch ((unsigned long)__raw_readq(&tx4927_ccfgptr->ccfg) &
+                TX4927_CCFG_PCIDIVMODE_MASK) {
+        case TX4927_CCFG_PCIDIVMODE_2_5:
+        case TX4927_CCFG_PCIDIVMODE_5:
+                txx9_cpu_clock = 166666666;     /* 166MHz */
+                break;
+        default:
+                txx9_cpu_clock = 200000000;     /* 200MHz */
+        }
+
+        rbtx49x7_common_time_init();
+}
+
+static void __init rbtx4937_time_init(void)
+{
+        /*
+         * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
+         *
+         * For TX4937:
+         * PCIDIVMODE[12:11]'s initial value is given by S1[5:4] (ON:0, OFF:1)
+         * PCIDIVMODE[10] is 0.
+         * CPU 266MHz: PCI 33MHz : PCIDIVMODE: 000 (1/8)
+         * CPU 266MHz: PCI 66MHz : PCIDIVMODE: 001 (1/4)
+         * CPU 300MHz: PCI 33MHz : PCIDIVMODE: 010 (1/9)
+         * CPU 300MHz: PCI 66MHz : PCIDIVMODE: 011 (1/4.5)
+         * CPU 333MHz: PCI 33MHz : PCIDIVMODE: 100 (1/10)
+         * CPU 333MHz: PCI 66MHz : PCIDIVMODE: 101 (1/5)
+         */
+        switch ((unsigned long)__raw_readq(&tx4938_ccfgptr->ccfg) &
+                TX4938_CCFG_PCIDIVMODE_MASK) {
+        case TX4938_CCFG_PCIDIVMODE_8:
+        case TX4938_CCFG_PCIDIVMODE_4:
+                txx9_cpu_clock = 266666666;     /* 266MHz */
+                break;
+        case TX4938_CCFG_PCIDIVMODE_9:
+        case TX4938_CCFG_PCIDIVMODE_4_5:
+                txx9_cpu_clock = 300000000;     /* 300MHz */
+                break;
+        default:
+                txx9_cpu_clock = 333333333;     /* 333MHz */
+        }
+
+        rbtx49x7_common_time_init();
+}
+
+static int __init toshiba_rbtx4927_rtc_init(void)
+{
+        static struct resource __initdata res = {
+                .start  = 0x1c010000,
+                .end    = 0x1c010000 + 0x800 - 1,
+                .flags  = IORESOURCE_MEM,
+        };
+        struct platform_device *dev =
+                platform_device_register_simple("rtc-ds1742", -1, &res, 1);
+        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4927_ne_init(void)
+{
+        static struct resource __initdata res[] = {
+                {
+                        .start  = RBTX4927_RTL_8019_BASE,
+                        .end    = RBTX4927_RTL_8019_BASE + 0x20 - 1,
+                        .flags  = IORESOURCE_IO,
+                }, {
+                        .start  = RBTX4927_RTL_8019_IRQ,
+                        .flags  = IORESOURCE_IRQ,
+                }
+        };
+        struct platform_device *dev =
+                platform_device_register_simple("ne", -1,
+                                                res, ARRAY_SIZE(res));
+        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+        struct resource res = {
+                .start  = base,
+                .end    = base + 0x100 - 1,
+                .flags  = IORESOURCE_MEM,
+        };
+        struct platform_device *dev =
+                platform_device_register_simple("txx9wdt", -1, &res, 1);
+        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4927_wdt_init(void)
+{
+        return txx9_wdt_init(TX4927_TMR_REG(2) & 0xfffffffffULL);
+}
+
+static void __init rbtx4927_device_init(void)
+{
+        toshiba_rbtx4927_rtc_init();
+        rbtx4927_ne_init();
+        rbtx4927_wdt_init();
+}
+
+struct txx9_board_vec rbtx4927_vec __initdata = {
+        .system = "Toshiba RBTX4927",
+        .prom_init = rbtx4927_prom_init,
+        .mem_setup = rbtx4927_mem_setup,
+        .irq_setup = rbtx4927_irq_setup,
+        .time_init = rbtx4927_time_init,
+        .device_init = rbtx4927_device_init,
+        .arch_init = rbtx4927_arch_init,
+#ifdef CONFIG_PCI
+        .pci_map_irq = rbtx4927_pci_map_irq,
+#endif
+};
+struct txx9_board_vec rbtx4937_vec __initdata = {
+        .system = "Toshiba RBTX4937",
+        .prom_init = rbtx4927_prom_init,
+        .mem_setup = rbtx4927_mem_setup,
+        .irq_setup = rbtx4927_irq_setup,
+        .time_init = rbtx4937_time_init,
+        .device_init = rbtx4927_device_init,
+        .arch_init = rbtx4937_arch_init,
+#ifdef CONFIG_PCI
+        .pci_map_irq = rbtx4927_pci_map_irq,
+#endif
+};
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/Makefile b/arch/mips/txx9/rbtx4938/Makefile
index 2316dd7dd1b..9dcc52ae5b9 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/Makefile
+++ b/arch/mips/txx9/rbtx4938/Makefile
@@ -1,7 +1,3 @@
-#
-# Makefile for common code for Toshiba TX4927 based systems
-#
-
 obj-y   += prom.o setup.o irq.o spi_eeprom.o
 
 EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/irq.c b/arch/mips/txx9/rbtx4938/irq.c
index 4d6a8dc46c7..3971a061657 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/irq.c
+++ b/arch/mips/txx9/rbtx4938/irq.c
@@ -1,6 +1,4 @@
 /*
- * linux/arch/mips/tx4938/toshiba_rbtx4938/irq.c
- *
  * Toshiba RBTX4938 specific interrupt handlers
  * Copyright (C) 2000-2001 Toshiba Corporation
  *
@@ -68,7 +66,9 @@ IRQ  Device
 */
 #include <linux/init.h>
 #include <linux/interrupt.h>
-#include <asm/tx4938/rbtx4938.h>
+#include <asm/mipsregs.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/rbtx4938.h>
 
 static void toshiba_rbtx4938_irq_ioc_enable(unsigned int irq);
 static void toshiba_rbtx4938_irq_ioc_disable(unsigned int irq);
@@ -82,26 +82,17 @@ static struct irq_chip toshiba_rbtx4938_irq_ioc_type = {
         .unmask = toshiba_rbtx4938_irq_ioc_enable,
 };
 
-int
-toshiba_rbtx4938_irq_nested(int sw_irq)
+static int toshiba_rbtx4938_irq_nested(int sw_irq)
 {
         u8 level3;
 
         level3 = readb(rbtx4938_imstat_addr);
         if (level3)
                 /* must use fls so onboard ATA has priority */
-                sw_irq = TOSHIBA_RBTX4938_IRQ_IOC_BEG + fls(level3) - 1;
-
+                sw_irq = RBTX4938_IRQ_IOC + fls(level3) - 1;
         return sw_irq;
 }
 
-static struct irqaction toshiba_rbtx4938_irq_ioc_action = {
-        .handler = no_action,
-        .flags = 0,
-        .mask = CPU_MASK_NONE,
-        .name = TOSHIBA_RBTX4938_IOC_NAME,
-};
-
 /**********************************************************************************/
 /* Functions for ioc                                                              */
 /**********************************************************************************/
@@ -110,13 +101,12 @@ toshiba_rbtx4938_irq_ioc_init(void)
 {
         int i;
 
-        for (i = TOSHIBA_RBTX4938_IRQ_IOC_BEG;
-             i <= TOSHIBA_RBTX4938_IRQ_IOC_END; i++)
+        for (i = RBTX4938_IRQ_IOC;
+             i < RBTX4938_IRQ_IOC + RBTX4938_NR_IRQ_IOC; i++)
                 set_irq_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type,
                                          handle_level_irq);
 
-        setup_irq(RBTX4938_IRQ_IOCINT,
-                  &toshiba_rbtx4938_irq_ioc_action);
+        set_irq_chained_handler(RBTX4938_IRQ_IOCINT, handle_simple_irq);
 }
 
 static void
@@ -125,7 +115,7 @@ toshiba_rbtx4938_irq_ioc_enable(unsigned int irq)
         unsigned char v;
 
         v = readb(rbtx4938_imask_addr);
-        v |= (1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG));
+        v |= (1 << (irq - RBTX4938_IRQ_IOC));
         writeb(v, rbtx4938_imask_addr);
         mmiowb();
 }
@@ -136,15 +126,33 @@ toshiba_rbtx4938_irq_ioc_disable(unsigned int irq)
         unsigned char v;
 
         v = readb(rbtx4938_imask_addr);
-        v &= ~(1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG));
+        v &= ~(1 << (irq - RBTX4938_IRQ_IOC));
         writeb(v, rbtx4938_imask_addr);
         mmiowb();
 }
 
-void __init arch_init_irq(void)
+static int rbtx4938_irq_dispatch(int pending)
 {
-        extern void tx4938_irq_init(void);
+        int irq;
+
+        if (pending & STATUSF_IP7)
+                irq = MIPS_CPU_IRQ_BASE + 7;
+        else if (pending & STATUSF_IP2) {
+                irq = txx9_irq();
+                if (irq == RBTX4938_IRQ_IOCINT)
+                        irq = toshiba_rbtx4938_irq_nested(irq);
+        } else if (pending & STATUSF_IP1)
+                irq = MIPS_CPU_IRQ_BASE + 0;
+        else if (pending & STATUSF_IP0)
+                irq = MIPS_CPU_IRQ_BASE + 1;
+        else
+                irq = -1;
+        return irq;
+}
 
+void __init rbtx4938_irq_setup(void)
+{
+        txx9_irq_dispatch = rbtx4938_irq_dispatch;
         /* Now, interrupt control disabled, */
         /* all IRC interrupts are masked, */
         /* all IRC interrupt mode are Low Active. */
diff --git a/arch/mips/txx9/rbtx4938/prom.c b/arch/mips/txx9/rbtx4938/prom.c
new file mode 100644
index 00000000000..fbb37458ddb
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/prom.c
@@ -0,0 +1,29 @@
+/*
+ * rbtx4938 specific prom routines
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/rbtx4938.h>
+
+void __init rbtx4938_prom_init(void)
+{
+        extern int tx4938_get_mem_size(void);
+        int msize;
+#ifndef CONFIG_TX4938_NAND_BOOT
+        prom_init_cmdline();
+#endif
+
+        msize = tx4938_get_mem_size();
+        add_memory_region(0, msize << 20, BOOT_MEM_RAM);
+}
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
new file mode 100644
index 00000000000..aaa987ae0f8
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -0,0 +1,625 @@
+/*
+ * Setup pointers to hardware-dependent routines.
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/console.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/txx9tmr.h>
+#include <asm/io.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/rbtx4938.h>
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+#include <linux/spi/spi.h>
+#include <asm/txx9/spi.h>
+#include <asm/txx9pio.h>
+
+static int tx4938_ccfg_toeon = 1;
+
+static void rbtx4938_machine_halt(void)
+{
+        printk(KERN_NOTICE "System Halted\n");
+        local_irq_disable();
+
+        while (1)
+                __asm__(".set\tmips3\n\t"
+                        "wait\n\t"
+                        ".set\tmips0");
+}
+
+static void rbtx4938_machine_power_off(void)
+{
+        rbtx4938_machine_halt();
+        /* no return */
+}
+
+static void rbtx4938_machine_restart(char *command)
+{
+        local_irq_disable();
+
+        printk("Rebooting...");
+        writeb(1, rbtx4938_softresetlock_addr);
+        writeb(1, rbtx4938_sfvol_addr);
+        writeb(1, rbtx4938_softreset_addr);
+        while(1)
+                ;
+}
+
+static void __init rbtx4938_pci_setup(void)
+{
+#ifdef CONFIG_PCI
+        int extarb = !(__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB);
+        struct pci_controller *c = &txx9_primary_pcic;
+
+        register_pci_controller(c);
+
+        if (__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCI66)
+                txx9_pci_option =
+                        (txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+                        TXX9_PCI_OPT_CLK_66; /* already configured */
+
+        /* Reset PCI Bus */
+        writeb(0, rbtx4938_pcireset_addr);
+        /* Reset PCIC */
+        txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+        if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+            TXX9_PCI_OPT_CLK_66)
+                tx4938_pciclk66_setup();
+        mdelay(10);
+        /* clear PCIC reset */
+        txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+        writeb(1, rbtx4938_pcireset_addr);
+        iob();
+
+        tx4938_report_pciclk();
+        tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+        if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+            TXX9_PCI_OPT_CLK_AUTO &&
+            txx9_pci66_check(c, 0, 0)) {
+                /* Reset PCI Bus */
+                writeb(0, rbtx4938_pcireset_addr);
+                /* Reset PCIC */
+                txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+                tx4938_pciclk66_setup();
+                mdelay(10);
+                /* clear PCIC reset */
+                txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+                writeb(1, rbtx4938_pcireset_addr);
+                iob();
+                /* Reinitialize PCIC */
+                tx4938_report_pciclk();
+                tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+        }
+
+        if (__raw_readq(&tx4938_ccfgptr->pcfg) &
+            (TX4938_PCFG_ETH0_SEL|TX4938_PCFG_ETH1_SEL)) {
+                /* Reset PCIC1 */
+                txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+                /* PCI1DMD==0 => PCI1CLK==GBUSCLK/2 => PCI66 */
+                if (!(__raw_readq(&tx4938_ccfgptr->ccfg)
+                      & TX4938_CCFG_PCI1DMD))
+                        tx4938_ccfg_set(TX4938_CCFG_PCI1_66);
+                mdelay(10);
+                /* clear PCIC1 reset */
+                txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+                tx4938_report_pci1clk();
+
+                /* mem:64K(max), io:64K(max) (enough for ETH0,ETH1) */
+                c = txx9_alloc_pci_controller(NULL, 0, 0x10000, 0, 0x10000);
+                register_pci_controller(c);
+                tx4927_pcic_setup(tx4938_pcic1ptr, c, 0);
+        }
+#endif /* CONFIG_PCI */
+}
+
+/* SPI support */
+
+/* chip select for SPI devices */
+#define SEEPROM1_CS     7       /* PIO7 */
+#define SEEPROM2_CS     0       /* IOC */
+#define SEEPROM3_CS     1       /* IOC */
+#define SRTC_CS 2       /* IOC */
+
+static int __init rbtx4938_ethaddr_init(void)
+{
+#ifdef CONFIG_PCI
+        unsigned char dat[17];
+        unsigned char sum;
+        int i;
+
+        /* 0-3: "MAC\0", 4-9:eth0, 10-15:eth1, 16:sum */
+        if (spi_eeprom_read(SEEPROM1_CS, 0, dat, sizeof(dat))) {
+                printk(KERN_ERR "seeprom: read error.\n");
+                return -ENODEV;
+        } else {
+                if (strcmp(dat, "MAC") != 0)
+                        printk(KERN_WARNING "seeprom: bad signature.\n");
+                for (i = 0, sum = 0; i < sizeof(dat); i++)
+                        sum += dat[i];
+                if (sum)
+                        printk(KERN_WARNING "seeprom: bad checksum.\n");
+        }
+        for (i = 0; i < 2; i++) {
+                unsigned int id =
+                        TXX9_IRQ_BASE + (i ? TX4938_IR_ETH1 : TX4938_IR_ETH0);
+                struct platform_device *pdev;
+                if (!(__raw_readq(&tx4938_ccfgptr->pcfg) &
+                      (i ? TX4938_PCFG_ETH1_SEL : TX4938_PCFG_ETH0_SEL)))
+                        continue;
+                pdev = platform_device_alloc("tc35815-mac", id);
+                if (!pdev ||
+                    platform_device_add_data(pdev, &dat[4 + 6 * i], 6) ||
+                    platform_device_add(pdev))
+                        platform_device_put(pdev);
+        }
+#endif /* CONFIG_PCI */
+        return 0;
+}
+
+static void __init rbtx4938_spi_setup(void)
+{
+        /* set SPI_SEL */
+        txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_SPI_SEL);
+}
+
+static struct resource rbtx4938_fpga_resource;
+static struct resource tx4938_sdram_resource[4];
+static struct resource tx4938_sram_resource;
+
+void __init tx4938_board_setup(void)
+{
+        int i;
+        unsigned long divmode;
+        int cpuclk = 0;
+        unsigned long pcode = TX4938_REV_PCODE();
+
+        ioport_resource.start = 0;
+        ioport_resource.end = 0xffffffff;
+        iomem_resource.start = 0;
+        iomem_resource.end = 0xffffffff;        /* expand to 4GB */
+
+        txx9_reg_res_init(pcode, TX4938_REG_BASE,
+                          TX4938_REG_SIZE);
+        /* SDRAMC,EBUSC are configured by PROM */
+        for (i = 0; i < 8; i++) {
+                if (!(TX4938_EBUSC_CR(i) & 0x8))
+                        continue;       /* disabled */
+                txx9_ce_res[i].start = (unsigned long)TX4938_EBUSC_BA(i);
+                txx9_ce_res[i].end =
+                        txx9_ce_res[i].start + TX4938_EBUSC_SIZE(i) - 1;
+                request_resource(&iomem_resource, &txx9_ce_res[i]);
+        }
+
+        /* clocks */
+        if (txx9_master_clock) {
+                u64 ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
+                /* calculate gbus_clock and cpu_clock_freq from master_clock */
+                divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
+                switch (divmode) {
+                case TX4938_CCFG_DIVMODE_8:
+                case TX4938_CCFG_DIVMODE_10:
+                case TX4938_CCFG_DIVMODE_12:
+                case TX4938_CCFG_DIVMODE_16:
+                case TX4938_CCFG_DIVMODE_18:
+                        txx9_gbus_clock = txx9_master_clock * 4; break;
+                default:
+                        txx9_gbus_clock = txx9_master_clock;
+                }
+                switch (divmode) {
+                case TX4938_CCFG_DIVMODE_2:
+                case TX4938_CCFG_DIVMODE_8:
+                        cpuclk = txx9_gbus_clock * 2; break;
+                case TX4938_CCFG_DIVMODE_2_5:
+                case TX4938_CCFG_DIVMODE_10:
+                        cpuclk = txx9_gbus_clock * 5 / 2; break;
+                case TX4938_CCFG_DIVMODE_3:
+                case TX4938_CCFG_DIVMODE_12:
+                        cpuclk = txx9_gbus_clock * 3; break;
+                case TX4938_CCFG_DIVMODE_4:
+                case TX4938_CCFG_DIVMODE_16:
+                        cpuclk = txx9_gbus_clock * 4; break;
+                case TX4938_CCFG_DIVMODE_4_5:
+                case TX4938_CCFG_DIVMODE_18:
+                        cpuclk = txx9_gbus_clock * 9 / 2; break;
+                }
+                txx9_cpu_clock = cpuclk;
+        } else {
+                u64 ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
+                if (txx9_cpu_clock == 0) {
+                        txx9_cpu_clock = 300000000;     /* 300MHz */
+                }
+                /* calculate gbus_clock and master_clock from cpu_clock_freq */
+                cpuclk = txx9_cpu_clock;
+                divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
+                switch (divmode) {
+                case TX4938_CCFG_DIVMODE_2:
+                case TX4938_CCFG_DIVMODE_8:
+                        txx9_gbus_clock = cpuclk / 2; break;
+                case TX4938_CCFG_DIVMODE_2_5:
+                case TX4938_CCFG_DIVMODE_10:
+                        txx9_gbus_clock = cpuclk * 2 / 5; break;
+                case TX4938_CCFG_DIVMODE_3:
+                case TX4938_CCFG_DIVMODE_12:
+                        txx9_gbus_clock = cpuclk / 3; break;
+                case TX4938_CCFG_DIVMODE_4:
+                case TX4938_CCFG_DIVMODE_16:
+                        txx9_gbus_clock = cpuclk / 4; break;
+                case TX4938_CCFG_DIVMODE_4_5:
+                case TX4938_CCFG_DIVMODE_18:
+                        txx9_gbus_clock = cpuclk * 2 / 9; break;
+                }
+                switch (divmode) {
+                case TX4938_CCFG_DIVMODE_8:
+                case TX4938_CCFG_DIVMODE_10:
+                case TX4938_CCFG_DIVMODE_12:
+                case TX4938_CCFG_DIVMODE_16:
+                case TX4938_CCFG_DIVMODE_18:
+                        txx9_master_clock = txx9_gbus_clock / 4; break;
+                default:
+                        txx9_master_clock = txx9_gbus_clock;
+                }
+        }
+        /* change default value to udelay/mdelay take reasonable time */
+        loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+        /* CCFG */
+        /* clear WatchDogReset,BusErrorOnWrite flag (W1C) */
+        tx4938_ccfg_set(TX4938_CCFG_WDRST | TX4938_CCFG_BEOW);
+        /* do reset on watchdog */
+        tx4938_ccfg_set(TX4938_CCFG_WR);
+        /* clear PCIC1 reset */
+        txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+
+        /* enable Timeout BusError */
+        if (tx4938_ccfg_toeon)
+                tx4938_ccfg_set(TX4938_CCFG_TOE);
+
+        /* DMA selection */
+        txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_DMASEL_ALL);
+
+        /* Use external clock for external arbiter */
+        if (!(____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB))
+                txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_PCICLKEN_ALL);
+
+        printk(KERN_INFO "%s -- %dMHz(M%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
+               txx9_pcode_str,
+               (cpuclk + 500000) / 1000000,
+               (txx9_master_clock + 500000) / 1000000,
+               (__u32)____raw_readq(&tx4938_ccfgptr->crir),
+               (unsigned long long)____raw_readq(&tx4938_ccfgptr->ccfg),
+               (unsigned long long)____raw_readq(&tx4938_ccfgptr->pcfg));
+
+        printk(KERN_INFO "%s SDRAMC --", txx9_pcode_str);
+        for (i = 0; i < 4; i++) {
+                unsigned long long cr = tx4938_sdramcptr->cr[i];
+                unsigned long ram_base, ram_size;
+                if (!((unsigned long)cr & 0x00000400))
+                        continue;       /* disabled */
+                ram_base = (unsigned long)(cr >> 49) << 21;
+                ram_size = ((unsigned long)(cr >> 33) + 1) << 21;
+                if (ram_base >= 0x20000000)
+                        continue;       /* high memory (ignore) */
+                printk(" CR%d:%016Lx", i, cr);
+                tx4938_sdram_resource[i].name = "SDRAM";
+                tx4938_sdram_resource[i].start = ram_base;
+                tx4938_sdram_resource[i].end = ram_base + ram_size - 1;
+                tx4938_sdram_resource[i].flags = IORESOURCE_MEM;
+                request_resource(&iomem_resource, &tx4938_sdram_resource[i]);
+        }
+        printk(" TR:%09Lx\n", tx4938_sdramcptr->tr);
+
+        /* SRAM */
+        if (tx4938_sramcptr->cr & 1) {
+                unsigned int size = 0x800;
+                unsigned long base =
+                        (tx4938_sramcptr->cr >> (39-11)) & ~(size - 1);
+                tx4938_sram_resource.name = "SRAM";
+                tx4938_sram_resource.start = base;
+                tx4938_sram_resource.end = base + size - 1;
+                tx4938_sram_resource.flags = IORESOURCE_MEM;
+                request_resource(&iomem_resource, &tx4938_sram_resource);
+        }
+
+        /* TMR */
+        for (i = 0; i < TX4938_NR_TMR; i++)
+                txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
+
+        /* enable DMA */
+        for (i = 0; i < 2; i++)
+                ____raw_writeq(TX4938_DMA_MCR_MSTEN,
+                               (void __iomem *)(TX4938_DMA_REG(i) + 0x50));
+
+        /* PIO */
+        __raw_writel(0, &tx4938_pioptr->maskcpu);
+        __raw_writel(0, &tx4938_pioptr->maskext);
+
+#ifdef CONFIG_PCI
+        txx9_alloc_pci_controller(&txx9_primary_pcic, 0, 0, 0, 0);
+#endif
+}
+
+static void __init rbtx4938_time_init(void)
+{
+        mips_hpt_frequency = txx9_cpu_clock / 2;
+        if (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_TINTDIS)
+                txx9_clockevent_init(TX4938_TMR_REG(0) & 0xfffffffffULL,
+                                     TXX9_IRQ_BASE + TX4938_IR_TMR(0),
+                                     txx9_gbus_clock / 2);
+}
+
+static void __init rbtx4938_mem_setup(void)
+{
+        unsigned long long pcfg;
+        char *argptr;
+
+        iomem_resource.end = 0xffffffff;        /* 4GB */
+
+        if (txx9_master_clock == 0)
+                txx9_master_clock = 25000000; /* 25MHz */
+        tx4938_board_setup();
+#ifndef CONFIG_PCI
+        set_io_port_base(RBTX4938_ETHER_BASE);
+#endif
+
+#ifdef CONFIG_SERIAL_TXX9
+        {
+                extern int early_serial_txx9_setup(struct uart_port *port);
+                int i;
+                struct uart_port req;
+                for(i = 0; i < 2; i++) {
+                        memset(&req, 0, sizeof(req));
+                        req.line = i;
+                        req.iotype = UPIO_MEM;
+                        req.membase = (char *)(0xff1ff300 + i * 0x100);
+                        req.mapbase = 0xff1ff300 + i * 0x100;
+                        req.irq = RBTX4938_IRQ_IRC_SIO(i);
+                        req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+                        req.uartclk = 50000000;
+                        early_serial_txx9_setup(&req);
+                }
+        }
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "console=") == NULL) {
+                strcat(argptr, " console=ttyS0,38400");
+        }
+#endif
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_PIO58_61
+        printk("PIOSEL: disabling both ata and nand selection\n");
+        local_irq_disable();
+        txx9_clear64(&tx4938_ccfgptr->pcfg,
+                     TX4938_PCFG_NDF_SEL | TX4938_PCFG_ATA_SEL);
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_NAND
+        printk("PIOSEL: enabling nand selection\n");
+        txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_NDF_SEL);
+        txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_ATA_SEL);
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_ATA
+        printk("PIOSEL: enabling ata selection\n");
+        txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_ATA_SEL);
+        txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_NDF_SEL);
+#endif
+
+#ifdef CONFIG_IP_PNP
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "ip=") == NULL) {
+                strcat(argptr, " ip=any");
+        }
+#endif
+
+
+#ifdef CONFIG_FB
+        {
+                conswitchp = &dummy_con;
+        }
+#endif
+
+        rbtx4938_spi_setup();
+        pcfg = ____raw_readq(&tx4938_ccfgptr->pcfg);    /* updated */
+        /* fixup piosel */
+        if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
+            TX4938_PCFG_ATA_SEL)
+                writeb((readb(rbtx4938_piosel_addr) & 0x03) | 0x04,
+                       rbtx4938_piosel_addr);
+        else if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
+                 TX4938_PCFG_NDF_SEL)
+                writeb((readb(rbtx4938_piosel_addr) & 0x03) | 0x08,
+                       rbtx4938_piosel_addr);
+        else
+                writeb(readb(rbtx4938_piosel_addr) & ~(0x08 | 0x04),
+                       rbtx4938_piosel_addr);
+
+        rbtx4938_fpga_resource.name = "FPGA Registers";
+        rbtx4938_fpga_resource.start = CPHYSADDR(RBTX4938_FPGA_REG_ADDR);
+        rbtx4938_fpga_resource.end = CPHYSADDR(RBTX4938_FPGA_REG_ADDR) + 0xffff;
+        rbtx4938_fpga_resource.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+        if (request_resource(&iomem_resource, &rbtx4938_fpga_resource))
+                printk("request resource for fpga failed\n");
+
+        _machine_restart = rbtx4938_machine_restart;
+        _machine_halt = rbtx4938_machine_halt;
+        pm_power_off = rbtx4938_machine_power_off;
+
+        writeb(0xff, rbtx4938_led_addr);
+        printk(KERN_INFO "RBTX4938 --- FPGA(Rev %02x) DIPSW:%02x,%02x\n",
+               readb(rbtx4938_fpga_rev_addr),
+               readb(rbtx4938_dipsw_addr), readb(rbtx4938_bdipsw_addr));
+}
+
+static int __init rbtx4938_ne_init(void)
+{
+        struct resource res[] = {
+                {
+                        .start  = RBTX4938_RTL_8019_BASE,
+                        .end    = RBTX4938_RTL_8019_BASE + 0x20 - 1,
+                        .flags  = IORESOURCE_IO,
+                }, {
+                        .start  = RBTX4938_RTL_8019_IRQ,
+                        .flags  = IORESOURCE_IRQ,
+                }
+        };
+        struct platform_device *dev =
+                platform_device_register_simple("ne", -1,
+                                                res, ARRAY_SIZE(res));
+        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+/* GPIO support */
+
+int gpio_to_irq(unsigned gpio)
+{
+        return -EINVAL;
+}
+
+int irq_to_gpio(unsigned irq)
+{
+        return -EINVAL;
+}
+
+static DEFINE_SPINLOCK(rbtx4938_spi_gpio_lock);
+
+static void rbtx4938_spi_gpio_set(struct gpio_chip *chip, unsigned int offset,
+                                  int value)
+{
+        u8 val;
+        unsigned long flags;
+        spin_lock_irqsave(&rbtx4938_spi_gpio_lock, flags);
+        val = readb(rbtx4938_spics_addr);
+        if (value)
+                val |= 1 << offset;
+        else
+                val &= ~(1 << offset);
+        writeb(val, rbtx4938_spics_addr);
+        mmiowb();
+        spin_unlock_irqrestore(&rbtx4938_spi_gpio_lock, flags);
+}
+
+static int rbtx4938_spi_gpio_dir_out(struct gpio_chip *chip,
+                                     unsigned int offset, int value)
+{
+        rbtx4938_spi_gpio_set(chip, offset, value);
+        return 0;
+}
+
+static struct gpio_chip rbtx4938_spi_gpio_chip = {
+        .set = rbtx4938_spi_gpio_set,
+        .direction_output = rbtx4938_spi_gpio_dir_out,
+        .label = "RBTX4938-SPICS",
+        .base = 16,
+        .ngpio = 3,
+};
+
+/* SPI support */
+
+static void __init txx9_spi_init(unsigned long base, int irq)
+{
+        struct resource res[] = {
+                {
+                        .start  = base,
+                        .end    = base + 0x20 - 1,
+                        .flags  = IORESOURCE_MEM,
+                }, {
+                        .start  = irq,
+                        .flags  = IORESOURCE_IRQ,
+                },
+        };
+        platform_device_register_simple("spi_txx9", 0,
+                                        res, ARRAY_SIZE(res));
+}
+
+static int __init rbtx4938_spi_init(void)
+{
+        struct spi_board_info srtc_info = {
+                .modalias = "rtc-rs5c348",
+                .max_speed_hz = 1000000, /* 1.0Mbps @ Vdd 2.0V */
+                .bus_num = 0,
+                .chip_select = 16 + SRTC_CS,
+                /* Mode 1 (High-Active, Shift-Then-Sample), High Avtive CS  */
+                .mode = SPI_MODE_1 | SPI_CS_HIGH,
+        };
+        spi_register_board_info(&srtc_info, 1);
+        spi_eeprom_register(SEEPROM1_CS);
+        spi_eeprom_register(16 + SEEPROM2_CS);
+        spi_eeprom_register(16 + SEEPROM3_CS);
+        gpio_request(16 + SRTC_CS, "rtc-rs5c348");
+        gpio_direction_output(16 + SRTC_CS, 0);
+        gpio_request(SEEPROM1_CS, "seeprom1");
+        gpio_direction_output(SEEPROM1_CS, 1);
+        gpio_request(16 + SEEPROM2_CS, "seeprom2");
+        gpio_direction_output(16 + SEEPROM2_CS, 1);
+        gpio_request(16 + SEEPROM3_CS, "seeprom3");
+        gpio_direction_output(16 + SEEPROM3_CS, 1);
+        txx9_spi_init(TX4938_SPI_REG & 0xfffffffffULL, RBTX4938_IRQ_IRC_SPI);
+        return 0;
+}
+
+static void __init rbtx4938_arch_init(void)
+{
+        txx9_gpio_init(TX4938_PIO_REG & 0xfffffffffULL, 0, 16);
+        gpiochip_add(&rbtx4938_spi_gpio_chip);
+        rbtx4938_pci_setup();
+        rbtx4938_spi_init();
+}
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+        struct resource res = {
+                .start  = base,
+                .end    = base + 0x100 - 1,
+                .flags  = IORESOURCE_MEM,
+        };
+        struct platform_device *dev =
+                platform_device_register_simple("txx9wdt", -1, &res, 1);
+        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4938_wdt_init(void)
+{
+        return txx9_wdt_init(TX4938_TMR_REG(2) & 0xfffffffffULL);
+}
+
+static void __init rbtx4938_device_init(void)
+{
+        rbtx4938_ethaddr_init();
+        rbtx4938_ne_init();
+        rbtx4938_wdt_init();
+}
+
+struct txx9_board_vec rbtx4938_vec __initdata = {
+        .system = "Toshiba RBTX4938",
+        .prom_init = rbtx4938_prom_init,
+        .mem_setup = rbtx4938_mem_setup,
+        .irq_setup = rbtx4938_irq_setup,
+        .time_init = rbtx4938_time_init,
+        .device_init = rbtx4938_device_init,
+        .arch_init = rbtx4938_arch_init,
+#ifdef CONFIG_PCI
+        .pci_map_irq = rbtx4938_pci_map_irq,
+#endif
+};
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/spi_eeprom.c b/arch/mips/txx9/rbtx4938/spi_eeprom.c
index 4d6b4ade5e8..a7ea8b041c1 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/spi_eeprom.c
+++ b/arch/mips/txx9/rbtx4938/spi_eeprom.c
@@ -1,5 +1,5 @@
 /*
- * linux/arch/mips/tx4938/toshiba_rbtx4938/spi_eeprom.c
+ * spi_eeprom.c
  * Copyright (C) 2000-2001 Toshiba Corporation
  *
  * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
@@ -13,7 +13,7 @@
 #include <linux/device.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/eeprom.h>
-#include <asm/tx4938/spi.h>
+#include <asm/txx9/spi.h>
 
 #define AT250X0_PAGE_SIZE       8
 
diff --git a/arch/mips/vr41xx/Kconfig b/arch/mips/vr41xx/Kconfig
index 559acc09c81..c1be6b37fb2 100644
--- a/arch/mips/vr41xx/Kconfig
+++ b/arch/mips/vr41xx/Kconfig
@@ -23,16 +23,6 @@ config IBM_WORKPAD
         select SYS_SUPPORTS_32BIT_KERNEL
         select SYS_SUPPORTS_LITTLE_ENDIAN
 
-config NEC_CMBVR4133
-        bool "NEC CMB-VR4133"
-        select CEVT_R4K
-        select CSRC_R4K
-        select DMA_NONCOHERENT
-        select IRQ_CPU
-        select HW_HAS_PCI
-        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_LITTLE_ENDIAN
-
 config TANBAC_TB022X
         bool "TANBAC VR4131 multichip module and TANBAC VR4131DIMM"
         select CEVT_R4K
@@ -73,13 +63,6 @@ config ZAO_CAPCELLA
 
 endchoice
 
-config ROCKHOPPER
-        bool "Support for Rockhopper base board"
-        depends on NEC_CMBVR4133
-        select PCI_VR41XX
-        select I8259
-        select HAVE_STD_PC_SERIAL_PORT
-
 choice
         prompt "Base board type"
         depends on TANBAC_TB022X
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/Makefile b/arch/mips/vr41xx/nec-cmbvr4133/Makefile
deleted file mode 100644
index 5835cae54ac..00000000000
--- a/arch/mips/vr41xx/nec-cmbvr4133/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for the NEC-CMBVR4133
-#
-
-obj-y                           := init.o setup.o
-
-obj-$(CONFIG_PCI)               += m1535plus.o
-obj-$(CONFIG_ROCKHOPPER)        += irq.o
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/init.c b/arch/mips/vr41xx/nec-cmbvr4133/init.c
deleted file mode 100644
index 7c5e18ee223..00000000000
--- a/arch/mips/vr41xx/nec-cmbvr4133/init.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * arch/mips/vr41xx/nec-cmbvr4133/init.c
- *
- * PROM library initialisation code for NEC CMB-VR4133 board.
- *
- * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
- *         Jun Sun <jsun@mvista.com, or source@mvista.com> and
- *         Alex Sapkov <asapkov@ru.mvista.com>
- *
- * 2001-2004 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for NEC-CMBVR4133 in 2.6
- * Manish Lachwani (mlachwani@mvista.com)
- */
-
-#ifdef CONFIG_ROCKHOPPER
-#include <asm/io.h>
-#include <linux/pci.h>
-
-#define PCICONFDREG     0xaf000c14
-#define PCICONFAREG     0xaf000c18
-
-void disable_pcnet(void)
-{
-        u32 data;
-
-        /*
-         * Workaround for the bug in PMON on VR4133. PMON leaves
-         * AMD PCNet controller (on Rockhopper) initialized and running in
-         * bus master mode. We have do disable it before doing any
-         * further initialization. Or we get problems with PCI bus 2
-         * and random lockups and crashes.
-         */
-
-        writel((2 << 16)                |
-               (PCI_DEVFN(1, 0) << 8)   |
-               (0 & 0xfc)               |
-               1UL,
-               PCICONFAREG);
-
-        data = readl(PCICONFDREG);
-
-        writel((2 << 16)                |
-               (PCI_DEVFN(1, 0) << 8)   |
-               (4 & 0xfc)               |
-               1UL,
-               PCICONFAREG);
-
-        data = readl(PCICONFDREG);
-
-        writel((2 << 16)                |
-               (PCI_DEVFN(1, 0) << 8)   |
-               (4 & 0xfc)               |
-               1UL,
-               PCICONFAREG);
-
-        data &= ~4;
-
-        writel(data, PCICONFDREG);
-}
-#endif
-
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/irq.c b/arch/mips/vr41xx/nec-cmbvr4133/irq.c
deleted file mode 100644
index 7d2d076b0f5..00000000000
--- a/arch/mips/vr41xx/nec-cmbvr4133/irq.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * arch/mips/vr41xx/nec-cmbvr4133/irq.c
- *
- * Interrupt routines for the NEC CMB-VR4133 board.
- *
- * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
- *         Alex Sapkov <asapkov@ru.mvista.com>
- *
- * 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for NEC-CMBVR4133 in 2.6
- * Manish Lachwani (mlachwani@mvista.com)
- */
-#include <linux/bitops.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-
-#include <asm/io.h>
-#include <asm/i8259.h>
-#include <asm/vr41xx/cmbvr4133.h>
-
-extern int vr4133_rockhopper;
-
-static int i8259_get_irq_number(int irq)
-{
-        return i8259_irq();
-}
-
-void __init rockhopper_init_irq(void)
-{
-        int i;
-
-        if(!vr4133_rockhopper) {
-                printk(KERN_ERR "Not a Rockhopper Board \n");
-                return;
-        }
-
-        vr41xx_set_irq_trigger(CMBVR41XX_INTC_PIN, TRIGGER_LEVEL, SIGNAL_THROUGH);
-        vr41xx_set_irq_level(CMBVR41XX_INTC_PIN, LEVEL_HIGH);
-        vr41xx_cascade_irq(CMBVR41XX_INTC_IRQ, i8259_get_irq_number);
-}
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/m1535plus.c b/arch/mips/vr41xx/nec-cmbvr4133/m1535plus.c
deleted file mode 100644
index 1341f3287d0..00000000000
--- a/arch/mips/vr41xx/nec-cmbvr4133/m1535plus.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * arch/mips/vr41xx/nec-cmbvr4133/m1535plus.c
- *
- * Initialize for ALi M1535+(included M5229 and M5237).
- *
- * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
- *         Alex Sapkov <asapkov@ru.mvista.com>
- *
- * 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for NEC-CMBVR4133 in 2.6
- * Author: Manish Lachwani (mlachwani@mvista.com)
- */
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/serial.h>
-
-#include <asm/vr41xx/cmbvr4133.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-
-#define CONFIG_PORT(port)       ((port) ? 0x3f0 : 0x370)
-#define DATA_PORT(port)         ((port) ? 0x3f1 : 0x371)
-#define INDEX_PORT(port)        CONFIG_PORT(port)
-
-#define ENTER_CONFIG_MODE(port)                         \
-        do {                                            \
-                outb_p(0x51, CONFIG_PORT(port));        \
-                outb_p(0x23, CONFIG_PORT(port));        \
-        } while(0)
-
-#define SELECT_LOGICAL_DEVICE(port, dev_no)             \
-        do {                                            \
-                outb_p(0x07, INDEX_PORT(port));         \
-                outb_p((dev_no), DATA_PORT(port));      \
-        } while(0)
-
-#define WRITE_CONFIG_DATA(port, index, data)            \
-        do {                                            \
-                outb_p((index), INDEX_PORT(port));      \
-                outb_p((data), DATA_PORT(port));        \
-        } while(0)
-
-#define EXIT_CONFIG_MODE(port)  outb(0xbb, CONFIG_PORT(port))
-
-#define PCI_CONFIG_ADDR KSEG1ADDR(0x0f000c18)
-#define PCI_CONFIG_DATA KSEG1ADDR(0x0f000c14)
-
-#ifdef CONFIG_BLK_DEV_FD
-
-void __devinit ali_m1535plus_fdc_init(int port)
-{
-        ENTER_CONFIG_MODE(port);
-        SELECT_LOGICAL_DEVICE(port, 0);         /* FDC */
-        WRITE_CONFIG_DATA(port, 0x30, 0x01);    /* FDC: enable */
-        WRITE_CONFIG_DATA(port, 0x60, 0x03);    /* I/O port base: 0x3f0 */
-        WRITE_CONFIG_DATA(port, 0x61, 0xf0);
-        WRITE_CONFIG_DATA(port, 0x70, 0x06);    /* IRQ: 6 */
-        WRITE_CONFIG_DATA(port, 0x74, 0x02);    /* DMA: channel 2 */
-        WRITE_CONFIG_DATA(port, 0xf0, 0x08);
-        WRITE_CONFIG_DATA(port, 0xf1, 0x00);
-        WRITE_CONFIG_DATA(port, 0xf2, 0xff);
-        WRITE_CONFIG_DATA(port, 0xf4, 0x00);
-        EXIT_CONFIG_MODE(port);
-}
-
-#endif
-
-void __devinit ali_m1535plus_parport_init(int port)
-{
-        ENTER_CONFIG_MODE(port);
-        SELECT_LOGICAL_DEVICE(port, 3);         /* Parallel Port */
-        WRITE_CONFIG_DATA(port, 0x30, 0x01);
-        WRITE_CONFIG_DATA(port, 0x60, 0x03);    /* I/O port base: 0x378 */
-        WRITE_CONFIG_DATA(port, 0x61, 0x78);
-        WRITE_CONFIG_DATA(port, 0x70, 0x07);    /* IRQ: 7 */
-        WRITE_CONFIG_DATA(port, 0x74, 0x04);    /* DMA: None */
-        WRITE_CONFIG_DATA(port, 0xf0, 0x8c);    /* IRQ polarity: Active Low */
-        WRITE_CONFIG_DATA(port, 0xf1, 0xc5);
-        EXIT_CONFIG_MODE(port);
-}
-
-void __devinit ali_m1535plus_keyboard_init(int port)
-{
-        ENTER_CONFIG_MODE(port);
-        SELECT_LOGICAL_DEVICE(port, 7);         /* KEYBOARD */
-        WRITE_CONFIG_DATA(port, 0x30, 0x01);    /* KEYBOARD: eable */
-        WRITE_CONFIG_DATA(port, 0x70, 0x01);    /* IRQ: 1 */
-        WRITE_CONFIG_DATA(port, 0x72, 0x0c);    /* PS/2 Mouse IRQ: 12 */
-        WRITE_CONFIG_DATA(port, 0xf0, 0x00);
-        EXIT_CONFIG_MODE(port);
-}
-
-void __devinit ali_m1535plus_hotkey_init(int port)
-{
-        ENTER_CONFIG_MODE(port);
-        SELECT_LOGICAL_DEVICE(port, 0xc);       /* HOTKEY */
-        WRITE_CONFIG_DATA(port, 0x30, 0x00);
-        WRITE_CONFIG_DATA(port, 0xf0, 0x35);
-        WRITE_CONFIG_DATA(port, 0xf1, 0x14);
-        WRITE_CONFIG_DATA(port, 0xf2, 0x11);
-        WRITE_CONFIG_DATA(port, 0xf3, 0x71);
-        WRITE_CONFIG_DATA(port, 0xf5, 0x05);
-        EXIT_CONFIG_MODE(port);
-}
-
-void ali_m1535plus_init(struct pci_dev *dev)
-{
-        pci_write_config_byte(dev, 0x40, 0x18); /* PCI Interface Control */
-        pci_write_config_byte(dev, 0x41, 0xc0); /* PS2 keyb & mouse enable */
-        pci_write_config_byte(dev, 0x42, 0x41); /* ISA bus cycle control */
-        pci_write_config_byte(dev, 0x43, 0x00); /* ISA bus cycle control 2 */
-        pci_write_config_byte(dev, 0x44, 0x5d); /* IDE enable & IRQ 14 */
-        pci_write_config_byte(dev, 0x45, 0x0b); /* PCI int polling mode */
-        pci_write_config_byte(dev, 0x47, 0x00); /* BIOS chip select control */
-
-        /* IRQ routing */
-        pci_write_config_byte(dev, 0x48, 0x03); /* INTA IRQ10, INTB disable */
-        pci_write_config_byte(dev, 0x49, 0x00); /* INTC and INTD disable */
-        pci_write_config_byte(dev, 0x4a, 0x00); /* INTE and INTF disable */
-        pci_write_config_byte(dev, 0x4b, 0x90); /* Audio IRQ11, Modem disable */
-
-        pci_write_config_word(dev, 0x50, 0x4000); /* Parity check IDE enable */
-        pci_write_config_word(dev, 0x52, 0x0000); /* USB & RTC disable */
-        pci_write_config_word(dev, 0x54, 0x0002); /* ??? no info */
-        pci_write_config_word(dev, 0x56, 0x0002); /* PCS1J signal disable */
-
-        pci_write_config_byte(dev, 0x59, 0x00); /* PCSDS */
-        pci_write_config_byte(dev, 0x5a, 0x00);
-        pci_write_config_byte(dev, 0x5b, 0x00);
-        pci_write_config_word(dev, 0x5c, 0x0000);
-        pci_write_config_byte(dev, 0x5e, 0x00);
-        pci_write_config_byte(dev, 0x5f, 0x00);
-        pci_write_config_word(dev, 0x60, 0x0000);
-
-        pci_write_config_byte(dev, 0x6c, 0x00);
-        pci_write_config_byte(dev, 0x6d, 0x48); /* ROM address mapping */
-        pci_write_config_byte(dev, 0x6e, 0x00); /* ??? what for? */
-
-        pci_write_config_byte(dev, 0x70, 0x12); /* Serial IRQ control */
-        pci_write_config_byte(dev, 0x71, 0xEF); /* DMA channel select */
-        pci_write_config_byte(dev, 0x72, 0x03); /* USB IDSEL */
-        pci_write_config_byte(dev, 0x73, 0x00); /* ??? no info */
-
-        /*
-         * IRQ setup ALi M5237 USB Host Controller
-         * IRQ: 9
-         */
-        pci_write_config_byte(dev, 0x74, 0x01); /* USB IRQ9 */
-
-        pci_write_config_byte(dev, 0x75, 0x1f); /* IDE2 IRQ 15  */
-        pci_write_config_byte(dev, 0x76, 0x80); /* ACPI disable */
-        pci_write_config_byte(dev, 0x77, 0x40); /* Modem disable */
-        pci_write_config_dword(dev, 0x78, 0x20000000); /* Pin select 2 */
-        pci_write_config_byte(dev, 0x7c, 0x00); /* Pin select 3 */
-        pci_write_config_byte(dev, 0x81, 0x00); /* ID read/write control */
-        pci_write_config_byte(dev, 0x90, 0x00); /* PCI PM block control */
-        pci_write_config_word(dev, 0xa4, 0x0000); /* PMSCR */
-
-#ifdef CONFIG_BLK_DEV_FD
-        ali_m1535plus_fdc_init(1);
-#endif
-
-        ali_m1535plus_keyboard_init(1);
-        ali_m1535plus_hotkey_init(1);
-}
-
-static inline void ali_config_writeb(u8 reg, u8 val, int devfn)
-{
-        u32 data;
-        int shift;
-
-        writel((1 << 16) | (devfn << 8) | (reg & 0xfc) | 1UL, PCI_CONFIG_ADDR);
-        data = readl(PCI_CONFIG_DATA);
-
-        shift = (reg & 3) << 3;
-        data &= ~(0xff << shift);
-        data |= (((u32)val) << shift);
-
-        writel(data, PCI_CONFIG_DATA);
-}
-
-static inline u8 ali_config_readb(u8 reg, int devfn)
-{
-        u32 data;
-
-        writel((1 << 16) | (devfn << 8) | (reg & 0xfc) | 1UL, PCI_CONFIG_ADDR);
-        data = readl(PCI_CONFIG_DATA);
-
-        return (u8)(data >> ((reg & 3) << 3));
-}
-
-static inline u16 ali_config_readw(u8 reg, int devfn)
-{
-        u32 data;
-
-        writel((1 << 16) | (devfn << 8) | (reg & 0xfc) | 1UL, PCI_CONFIG_ADDR);
-        data = readl(PCI_CONFIG_DATA);
-
-        return (u16)(data >> ((reg & 2) << 3));
-}
-
-int vr4133_rockhopper = 0;
-void __init ali_m5229_preinit(void)
-{
-        if (ali_config_readw(PCI_VENDOR_ID, 16) == PCI_VENDOR_ID_AL &&
-            ali_config_readw(PCI_DEVICE_ID, 16) == PCI_DEVICE_ID_AL_M1533) {
-                printk(KERN_INFO "Found an NEC Rockhopper \n");
-                vr4133_rockhopper = 1;
-                /*
-                 * Enable ALi M5229 IDE Controller (both channels)
-                 * IDSEL: A27
-                 */
-                ali_config_writeb(0x58, 0x4c, 16);
-        }
-}
-
-void __init ali_m5229_init(struct pci_dev *dev)
-{
-        /*
-         * Enable Primary/Secondary Channel Cable Detect 40-Pin
-         */
-        pci_write_config_word(dev, 0x4a, 0xc023);
-
-        /*
-         * Set only the 3rd byteis for the master IDE's cycle and
-         * enable Internal IDE Function
-         */
-        pci_write_config_byte(dev, 0x50, 0x23); /* Class code attr register */
-
-        pci_write_config_byte(dev, 0x09, 0xff); /* Set native mode & stuff */
-        pci_write_config_byte(dev, 0x52, 0x00); /* use timing registers */
-        pci_write_config_byte(dev, 0x58, 0x02); /* Primary addr setup timing */
-        pci_write_config_byte(dev, 0x59, 0x22); /* Primary cmd block timing */
-        pci_write_config_byte(dev, 0x5a, 0x22); /* Pr drv 0 R/W timing */
-        pci_write_config_byte(dev, 0x5b, 0x22); /* Pr drv 1 R/W timing */
-        pci_write_config_byte(dev, 0x5c, 0x02); /* Sec addr setup timing */
-        pci_write_config_byte(dev, 0x5d, 0x22); /* Sec cmd block timing */
-        pci_write_config_byte(dev, 0x5e, 0x22); /* Sec drv 0 R/W timing */
-        pci_write_config_byte(dev, 0x5f, 0x22); /* Sec drv 1 R/W timing */
-        pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
-        pci_write_config_word(dev, PCI_COMMAND,
-                                   PCI_COMMAND_PARITY | PCI_COMMAND_MASTER |
-                                   PCI_COMMAND_IO);
-}
-
diff --git a/arch/mips/vr41xx/nec-cmbvr4133/setup.c b/arch/mips/vr41xx/nec-cmbvr4133/setup.c
deleted file mode 100644
index 7723d2011b0..00000000000
--- a/arch/mips/vr41xx/nec-cmbvr4133/setup.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * arch/mips/vr41xx/nec-cmbvr4133/setup.c
- *
- * Setup for the NEC CMB-VR4133.
- *
- * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
- *         Alex Sapkov <asapkov@ru.mvista.com>
- *
- * 2001-2004 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- * Support for CMBVR4133 board in 2.6
- * Author: Manish Lachwani (mlachwani@mvista.com)
- */
-#include <linux/init.h>
-#include <linux/ide.h>
-#include <linux/ioport.h>
-
-#include <asm/reboot.h>
-#include <asm/time.h>
-#include <asm/vr41xx/cmbvr4133.h>
-#include <asm/bootinfo.h>
-
-#ifdef CONFIG_MTD
-#include <linux/mtd/physmap.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-
-static struct mtd_partition cmbvr4133_mtd_parts[] = {
-        {
-                .name =         "User FS",
-                .size =         0x1be0000,
-                .offset =       0,
-                .mask_flags =   0,
-        },
-        {
-                .name =         "PMON",
-                .size =         0x140000,
-                .offset =       MTDPART_OFS_APPEND,
-                .mask_flags =   MTD_WRITEABLE,  /* force read-only */
-        },
-        {
-                .name =         "User FS2",
-                .size =         MTDPART_SIZ_FULL,
-                .offset =       MTDPART_OFS_APPEND,
-                .mask_flags =   0,
-        }
-};
-
-#define number_partitions ARRAY_SIZE(cmbvr4133_mtd_parts)
-#endif
-
-extern void i8259_init(void);
-
-static void __init nec_cmbvr4133_setup(void)
-{
-#ifdef CONFIG_ROCKHOPPER
-        extern void disable_pcnet(void);
-
-        disable_pcnet();
-#endif
-        set_io_port_base(KSEG1ADDR(0x16000000));
-
-#ifdef CONFIG_PCI
-#ifdef CONFIG_ROCKHOPPER
-        ali_m5229_preinit();
-#endif
-#endif
-
-#ifdef CONFIG_ROCKHOPPER
-        rockhopper_init_irq();
-#endif
-
-#ifdef CONFIG_MTD
-        /* we use generic physmap mapping driver and we use partitions */
-        physmap_configure(0x1C000000, 0x02000000, 4, NULL);
-        physmap_set_partitions(cmbvr4133_mtd_parts, number_partitions);
-#endif
-
-        /* 128 MB memory support */
-        add_memory_region(0, 0x08000000, BOOT_MEM_RAM);
-
-#ifdef CONFIG_ROCKHOPPER
-        i8259_init();
-#endif
-}
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bc7a19da624..a7d4fd353c2 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -199,6 +199,7 @@ endchoice
 
 config SMP
         bool "Symmetric multi-processing support"
+        select USE_GENERIC_SMP_HELPERS
         ---help---
           This enables support for systems with more than one CPU. If you have
           a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index e10d25d2d9c..5259d8c2067 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -51,12 +51,12 @@ static struct pdc_btlb_info btlb_info __read_mostly;
 void
 flush_data_cache(void)
 {
-        on_each_cpu(flush_data_cache_local, NULL, 1, 1);
+        on_each_cpu(flush_data_cache_local, NULL, 1);
 }
 void 
 flush_instruction_cache(void)
 {
-        on_each_cpu(flush_instruction_cache_local, NULL, 1, 1);
+        on_each_cpu(flush_instruction_cache_local, NULL, 1);
 }
 #endif
 
@@ -515,7 +515,7 @@ static void cacheflush_h_tmp_function(void *dummy)
 
 void flush_cache_all(void)
 {
-        on_each_cpu(cacheflush_h_tmp_function, NULL, 1, 1);
+        on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
 }
 
 void flush_cache_mm(struct mm_struct *mm)
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 85fc7754ec2..d47f3975c9c 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -84,19 +84,11 @@ EXPORT_SYMBOL(cpu_possible_map);
 
 DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
 
-struct smp_call_struct {
-        void (*func) (void *info);
-        void *info;
-        long wait;
-        atomic_t unstarted_count;
-        atomic_t unfinished_count;
-};
-static volatile struct smp_call_struct *smp_call_function_data;
-
 enum ipi_message_type {
         IPI_NOP=0,
         IPI_RESCHEDULE=1,
         IPI_CALL_FUNC,
+        IPI_CALL_FUNC_SINGLE,
         IPI_CPU_START,
         IPI_CPU_STOP,
         IPI_CPU_TEST
@@ -187,33 +179,12 @@ ipi_interrupt(int irq, void *dev_id)
 
                         case IPI_CALL_FUNC:
                                 smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC\n", this_cpu);
-                                {
-                                        volatile struct smp_call_struct *data;
-                                        void (*func)(void *info);
-                                        void *info;
-                                        int wait;
-
-                                        data = smp_call_function_data;
-                                        func = data->func;
-                                        info = data->info;
-                                        wait = data->wait;
-
-                                        mb();
-                                        atomic_dec ((atomic_t *)&data->unstarted_count);
-
-                                        /* At this point, *data can't
-                                         * be relied upon.
-                                         */
-
-                                        (*func)(info);
-
-                                        /* Notify the sending CPU that the
-                                         * task is done.
-                                         */
-                                        mb();
-                                        if (wait)
-                                                atomic_dec ((atomic_t *)&data->unfinished_count);
-                                }
+                                generic_smp_call_function_interrupt();
+                                break;
+
+                        case IPI_CALL_FUNC_SINGLE:
+                                smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC_SINGLE\n", this_cpu);
+                                generic_smp_call_function_single_interrupt();
                                 break;
 
                         case IPI_CPU_START:
@@ -256,6 +227,14 @@ ipi_send(int cpu, enum ipi_message_type op)
         spin_unlock_irqrestore(lock, flags);
 }
 
+static void
+send_IPI_mask(cpumask_t mask, enum ipi_message_type op)
+{
+        int cpu;
+
+        for_each_cpu_mask(cpu, mask)
+                ipi_send(cpu, op);
+}
 
 static inline void
 send_IPI_single(int dest_cpu, enum ipi_message_type op)
@@ -295,86 +274,15 @@ smp_send_all_nop(void)
         send_IPI_allbutself(IPI_NOP);
 }
 
-
-/**
- * Run a function on all other CPUs.
- *  <func>      The function to run. This must be fast and non-blocking.
- *  <info>      An arbitrary pointer to pass to the function.
- *  <retry>     If true, keep retrying until ready.
- *  <wait>      If true, wait until function has completed on other CPUs.
- *  [RETURNS]   0 on success, else a negative status code.
- *
- * Does not return until remote CPUs are nearly ready to execute <func>
- * or have executed.
- */
-
-int
-smp_call_function (void (*func) (void *info), void *info, int retry, int wait)
+void arch_send_call_function_ipi(cpumask_t mask)
 {
-        struct smp_call_struct data;
-        unsigned long timeout;
-        static DEFINE_SPINLOCK(lock);
-        int retries = 0;
-
-        if (num_online_cpus() < 2)
-                return 0;
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        /* can also deadlock if IPIs are disabled */
-        WARN_ON((get_eiem() & (1UL<<(CPU_IRQ_MAX - IPI_IRQ))) == 0);
-
-        
-        data.func = func;
-        data.info = info;
-        data.wait = wait;
-        atomic_set(&data.unstarted_count, num_online_cpus() - 1);
-        atomic_set(&data.unfinished_count, num_online_cpus() - 1);
-
-        if (retry) {
-                spin_lock (&lock);
-                while (smp_call_function_data != 0)
-                        barrier();
-        }
-        else {
-                spin_lock (&lock);
-                if (smp_call_function_data) {
-                        spin_unlock (&lock);
-                        return -EBUSY;
-                }
-        }
-
-        smp_call_function_data = &data;
-        spin_unlock (&lock);
-        
-        /*  Send a message to all other CPUs and wait for them to respond  */
-        send_IPI_allbutself(IPI_CALL_FUNC);
-
- retry:
-        /*  Wait for response  */
-        timeout = jiffies + HZ;
-        while ( (atomic_read (&data.unstarted_count) > 0) &&
-                time_before (jiffies, timeout) )
-                barrier ();
-
-        if (atomic_read (&data.unstarted_count) > 0) {
-                printk(KERN_CRIT "SMP CALL FUNCTION TIMED OUT! (cpu=%d), try %d\n",
-                      smp_processor_id(), ++retries);
-                goto retry;
-        }
-        /* We either got one or timed out. Release the lock */
-
-        mb();
-        smp_call_function_data = NULL;
-
-        while (wait && atomic_read (&data.unfinished_count) > 0)
-                        barrier ();
-
-        return 0;
+        send_IPI_mask(mask, IPI_CALL_FUNC);
 }
 
-EXPORT_SYMBOL(smp_call_function);
+void arch_send_call_function_single_ipi(int cpu)
+{
+        send_IPI_single(cpu, IPI_CALL_FUNC_SINGLE);
+}
 
 /*
  * Flush all other CPU's tlb and then mine.  Do this with on_each_cpu()
@@ -384,7 +292,7 @@ EXPORT_SYMBOL(smp_call_function);
 void
 smp_flush_tlb_all(void)
 {
-        on_each_cpu(flush_tlb_all_local, NULL, 1, 1);
+        on_each_cpu(flush_tlb_all_local, NULL, 1);
 }
 
 /*
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index ce0da689a89..b4d6c8777ed 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -1053,7 +1053,7 @@ void flush_tlb_all(void)
             do_recycle++;
         }
         spin_unlock(&sid_lock);
-        on_each_cpu(flush_tlb_all_local, NULL, 1, 1);
+        on_each_cpu(flush_tlb_all_local, NULL, 1);
         if (do_recycle) {
             spin_lock(&sid_lock);
             recycle_sids(recycle_ndirty,recycle_dirty_array);
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a5e9912e2d3..20eacf2a842 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -111,6 +111,7 @@ config PPC
         select HAVE_KPROBES
         select HAVE_KRETPROBES
         select HAVE_LMB
+        select USE_GENERIC_SMP_HELPERS if SMP
         select HAVE_OPROFILE
 
 config EARLY_PRINTK
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index 704375bda73..b732b5f8e35 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -172,7 +172,7 @@ static void kexec_prepare_cpus(void)
 {
         int my_cpu, i, notified=-1;
 
-        smp_call_function(kexec_smp_down, NULL, 0, /* wait */0);
+        smp_call_function(kexec_smp_down, NULL, /* wait */0);
         my_cpu = get_cpu();
 
         /* check the others cpus are now down (via paca hw cpu id == -1) */
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 34843c31841..647f3e8677d 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -747,7 +747,7 @@ static int rtas_ibm_suspend_me(struct rtas_args *args)
         /* Call function on all CPUs.  One of us will make the
          * rtas call
          */
-        if (on_each_cpu(rtas_percpu_suspend_me, &data, 1, 0))
+        if (on_each_cpu(rtas_percpu_suspend_me, &data, 0))
                 data.error = -EINVAL;
 
         wait_for_completion(&done);
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 1457aa0a08f..5191b46a611 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -72,12 +72,8 @@ struct smp_ops_t *smp_ops;
 
 static volatile unsigned int cpu_callin_map[NR_CPUS];
 
-void smp_call_function_interrupt(void);
-
 int smt_enabled_at_boot = 1;
 
-static int ipi_fail_ok;
-
 static void (*crash_ipi_function_ptr)(struct pt_regs *) = NULL;
 
 #ifdef CONFIG_PPC64
@@ -99,12 +95,15 @@ void smp_message_recv(int msg)
 {
         switch(msg) {
         case PPC_MSG_CALL_FUNCTION:
-                smp_call_function_interrupt();
+                generic_smp_call_function_interrupt();
                 break;
         case PPC_MSG_RESCHEDULE:
                 /* XXX Do we have to do this? */
                 set_need_resched();
                 break;
+        case PPC_MSG_CALL_FUNC_SINGLE:
+                generic_smp_call_function_single_interrupt();
+                break;
         case PPC_MSG_DEBUGGER_BREAK:
                 if (crash_ipi_function_ptr) {
                         crash_ipi_function_ptr(get_irq_regs());
@@ -128,6 +127,19 @@ void smp_send_reschedule(int cpu)
                 smp_ops->message_pass(cpu, PPC_MSG_RESCHEDULE);
 }
 
+void arch_send_call_function_single_ipi(int cpu)
+{
+        smp_ops->message_pass(cpu, PPC_MSG_CALL_FUNC_SINGLE);
+}
+
+void arch_send_call_function_ipi(cpumask_t mask)
+{
+        unsigned int cpu;
+
+        for_each_cpu_mask(cpu, mask)
+                smp_ops->message_pass(cpu, PPC_MSG_CALL_FUNCTION);
+}
+
 #ifdef CONFIG_DEBUGGER
 void smp_send_debugger_break(int cpu)
 {
@@ -154,215 +166,9 @@ static void stop_this_cpu(void *dummy)
                 ;
 }
 
-/*
- * Structure and data for smp_call_function(). This is designed to minimise
- * static memory requirements. It also looks cleaner.
- * Stolen from the i386 version.
- */
-static  __cacheline_aligned_in_smp DEFINE_SPINLOCK(call_lock);
-
-static struct call_data_struct {
-        void (*func) (void *info);
-        void *info;
-        atomic_t started;
-        atomic_t finished;
-        int wait;
-} *call_data;
-
-/* delay of at least 8 seconds */
-#define SMP_CALL_TIMEOUT        8
-
-/*
- * These functions send a 'generic call function' IPI to other online
- * CPUS in the system.
- *
- * [SUMMARY] Run a function on other CPUs.
- * <func> The function to run. This must be fast and non-blocking.
- * <info> An arbitrary pointer to pass to the function.
- * <nonatomic> currently unused.
- * <wait> If true, wait (atomically) until function has completed on other CPUs.
- * [RETURNS] 0 on success, else a negative status code. Does not return until
- * remote CPUs are nearly ready to execute <<func>> or are or have executed.
- * <map> is a cpu map of the cpus to send IPI to.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-static int __smp_call_function_map(void (*func) (void *info), void *info,
-                                   int nonatomic, int wait, cpumask_t map)
-{
-        struct call_data_struct data;
-        int ret = -1, num_cpus;
-        int cpu;
-        u64 timeout;
-
-        if (unlikely(smp_ops == NULL))
-                return ret;
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        /* remove 'self' from the map */
-        if (cpu_isset(smp_processor_id(), map))
-                cpu_clear(smp_processor_id(), map);
-
-        /* sanity check the map, remove any non-online processors. */
-        cpus_and(map, map, cpu_online_map);
-
-        num_cpus = cpus_weight(map);
-        if (!num_cpus)
-                goto done;
-
-        call_data = &data;
-        smp_wmb();
-        /* Send a message to all CPUs in the map */
-        for_each_cpu_mask(cpu, map)
-                smp_ops->message_pass(cpu, PPC_MSG_CALL_FUNCTION);
-
-        timeout = get_tb() + (u64) SMP_CALL_TIMEOUT * tb_ticks_per_sec;
-
-        /* Wait for indication that they have received the message */
-        while (atomic_read(&data.started) != num_cpus) {
-                HMT_low();
-                if (get_tb() >= timeout) {
-                        printk("smp_call_function on cpu %d: other cpus not "
-                                "responding (%d)\n", smp_processor_id(),
-                                atomic_read(&data.started));
-                        if (!ipi_fail_ok)
-                                debugger(NULL);
-                        goto out;
-                }
-        }
-
-        /* optionally wait for the CPUs to complete */
-        if (wait) {
-                while (atomic_read(&data.finished) != num_cpus) {
-                        HMT_low();
-                        if (get_tb() >= timeout) {
-                                printk("smp_call_function on cpu %d: other "
-                                        "cpus not finishing (%d/%d)\n",
-                                        smp_processor_id(),
-                                        atomic_read(&data.finished),
-                                        atomic_read(&data.started));
-                                debugger(NULL);
-                                goto out;
-                        }
-                }
-        }
-
- done:
-        ret = 0;
-
- out:
-        call_data = NULL;
-        HMT_medium();
-        return ret;
-}
-
-static int __smp_call_function(void (*func)(void *info), void *info,
-                               int nonatomic, int wait)
-{
-        int ret;
-        spin_lock(&call_lock);
-        ret =__smp_call_function_map(func, info, nonatomic, wait,
-                                       cpu_online_map);
-        spin_unlock(&call_lock);
-        return ret;
-}
-
-int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
-                        int wait)
-{
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        return __smp_call_function(func, info, nonatomic, wait);
-}
-EXPORT_SYMBOL(smp_call_function);
-
-int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                             int nonatomic, int wait)
-{
-        cpumask_t map = CPU_MASK_NONE;
-        int ret = 0;
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        if (!cpu_online(cpu))
-                return -EINVAL;
-
-        cpu_set(cpu, map);
-        if (cpu != get_cpu()) {
-                spin_lock(&call_lock);
-                ret = __smp_call_function_map(func, info, nonatomic, wait, map);
-                spin_unlock(&call_lock);
-        } else {
-                local_irq_disable();
-                func(info);
-                local_irq_enable();
-        }
-        put_cpu();
-        return ret;
-}
-EXPORT_SYMBOL(smp_call_function_single);
-
 void smp_send_stop(void)
 {
-        int nolock;
-
-        /* It's OK to fail sending the IPI, since the alternative is to
-         * be stuck forever waiting on the other CPU to take the interrupt.
-         *
-         * It's better to at least continue and go through reboot, since this
-         * function is usually called at panic or reboot time in the first
-         * place.
-         */
-        ipi_fail_ok = 1;
-
-        /* Don't deadlock in case we got called through panic */
-        nolock = !spin_trylock(&call_lock);
-        __smp_call_function_map(stop_this_cpu, NULL, 1, 0, cpu_online_map);
-        if (!nolock)
-                spin_unlock(&call_lock);
-}
-
-void smp_call_function_interrupt(void)
-{
-        void (*func) (void *info);
-        void *info;
-        int wait;
-
-        /* call_data will be NULL if the sender timed out while
-         * waiting on us to receive the call.
-         */
-        if (!call_data)
-                return;
-
-        func = call_data->func;
-        info = call_data->info;
-        wait = call_data->wait;
-
-        if (!wait)
-                smp_mb__before_atomic_inc();
-
-        /*
-         * Notify initiating CPU that I've grabbed the data and am
-         * about to execute the function
-         */
-        atomic_inc(&call_data->started);
-        /*
-         * At this point the info structure may be out of scope unless wait==1
-         */
-        (*func)(info);
-        if (wait) {
-                smp_mb__before_atomic_inc();
-                atomic_inc(&call_data->finished);
-        }
+        smp_call_function(stop_this_cpu, NULL, 0);
 }
 
 extern struct gettimeofday_struct do_gtod;
@@ -596,9 +402,9 @@ int __devinit start_secondary(void *unused)
 
         secondary_cpu_time_init();
 
-        spin_lock(&call_lock);
+        ipi_call_lock();
         cpu_set(cpu, cpu_online_map);
-        spin_unlock(&call_lock);
+        ipi_call_unlock();
 
         local_irq_enable();
 
diff --git a/arch/powerpc/kernel/stacktrace.c b/arch/powerpc/kernel/stacktrace.c
index 96294403843..3cf0d94ba34 100644
--- a/arch/powerpc/kernel/stacktrace.c
+++ b/arch/powerpc/kernel/stacktrace.c
@@ -12,6 +12,7 @@
 
 #include <linux/sched.h>
 #include <linux/stacktrace.h>
+#include <linux/module.h>
 #include <asm/ptrace.h>
 
 /*
@@ -44,3 +45,4 @@ void save_stack_trace(struct stack_trace *trace)
                 sp = newsp;
         }
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
diff --git a/arch/powerpc/kernel/tau_6xx.c b/arch/powerpc/kernel/tau_6xx.c
index 368a4934f7e..c3a56d65c5a 100644
--- a/arch/powerpc/kernel/tau_6xx.c
+++ b/arch/powerpc/kernel/tau_6xx.c
@@ -192,7 +192,7 @@ static void tau_timeout_smp(unsigned long unused)
 
         /* schedule ourselves to be run again */
         mod_timer(&tau_timer, jiffies + shrink_timer) ;
-        on_each_cpu(tau_timeout, NULL, 1, 0);
+        on_each_cpu(tau_timeout, NULL, 0);
 }
 
 /*
@@ -234,7 +234,7 @@ int __init TAU_init(void)
         tau_timer.expires = jiffies + shrink_timer;
         add_timer(&tau_timer);
 
-        on_each_cpu(TAU_init_smp, NULL, 1, 0);
+        on_each_cpu(TAU_init_smp, NULL, 0);
 
         printk("Thermal assist unit ");
 #ifdef CONFIG_TAU_INT
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 73401e83739..f1a38a6c1e2 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -322,7 +322,7 @@ void snapshot_timebases(void)
 {
         if (!cpu_has_feature(CPU_FTR_PURR))
                 return;
-        on_each_cpu(snapshot_tb_and_purr, NULL, 0, 1);
+        on_each_cpu(snapshot_tb_and_purr, NULL, 1);
 }
 
 /*
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index ad928edafb0..2bd12d965db 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -218,7 +218,7 @@ static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psiz
         mb();
 
         /* XXX this is sub-optimal but will do for now */
-        on_each_cpu(slice_flush_segments, mm, 0, 1);
+        on_each_cpu(slice_flush_segments, mm, 1);
 #ifdef CONFIG_SPU_BASE
         spu_flush_all_slbs(mm);
 #endif
diff --git a/arch/powerpc/mm/tlb_64.c b/arch/powerpc/mm/tlb_64.c
index e2d867ce1c7..69ad829a7fa 100644
--- a/arch/powerpc/mm/tlb_64.c
+++ b/arch/powerpc/mm/tlb_64.c
@@ -66,7 +66,7 @@ static void pgtable_free_now(pgtable_free_t pgf)
 {
         pte_freelist_forced_free++;
 
-        smp_call_function(pte_free_smp_sync, NULL, 0, 1);
+        smp_call_function(pte_free_smp_sync, NULL, 1);
 
         pgtable_free(pgf);
 }
diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
index 4908dc98f9c..17807acb05d 100644
--- a/arch/powerpc/oprofile/common.c
+++ b/arch/powerpc/oprofile/common.c
@@ -65,7 +65,7 @@ static int op_powerpc_setup(void)
 
         /* Configure the registers on all cpus.  If an error occurs on one
          * of the cpus, op_per_cpu_rc will be set to the error */
-        on_each_cpu(op_powerpc_cpu_setup, NULL, 0, 1);
+        on_each_cpu(op_powerpc_cpu_setup, NULL, 1);
 
 out:    if (op_per_cpu_rc) {
                 /* error on setup release the performance counter hardware */
@@ -100,7 +100,7 @@ static int op_powerpc_start(void)
         if (model->global_start)
                 return model->global_start(ctr);
         if (model->start) {
-                on_each_cpu(op_powerpc_cpu_start, NULL, 0, 1);
+                on_each_cpu(op_powerpc_cpu_start, NULL, 1);
                 return op_per_cpu_rc;
         }
         return -EIO; /* No start function is defined for this
@@ -115,7 +115,7 @@ static inline void op_powerpc_cpu_stop(void *dummy)
 static void op_powerpc_stop(void)
 {
         if (model->stop)
-                on_each_cpu(op_powerpc_cpu_stop, NULL, 0, 1);
+                on_each_cpu(op_powerpc_cpu_stop, NULL, 1);
         if (model->global_stop)
                 model->global_stop();
 }
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index 5bf7df14602..2d5bb22d6c0 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -218,6 +218,7 @@ void iic_request_IPIs(void)
 {
         iic_request_ipi(PPC_MSG_CALL_FUNCTION, "IPI-call");
         iic_request_ipi(PPC_MSG_RESCHEDULE, "IPI-resched");
+        iic_request_ipi(PPC_MSG_CALL_FUNC_SINGLE, "IPI-call-single");
 #ifdef CONFIG_DEBUGGER
         iic_request_ipi(PPC_MSG_DEBUGGER_BREAK, "IPI-debug");
 #endif /* CONFIG_DEBUGGER */
diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c
index f0b12f21236..a0927a3bacb 100644
--- a/arch/powerpc/platforms/ps3/smp.c
+++ b/arch/powerpc/platforms/ps3/smp.c
@@ -105,9 +105,10 @@ static void __init ps3_smp_setup_cpu(int cpu)
          * to index needs to be setup.
          */
 
-        BUILD_BUG_ON(PPC_MSG_CALL_FUNCTION  != 0);
-        BUILD_BUG_ON(PPC_MSG_RESCHEDULE     != 1);
-        BUILD_BUG_ON(PPC_MSG_DEBUGGER_BREAK != 3);
+        BUILD_BUG_ON(PPC_MSG_CALL_FUNCTION    != 0);
+        BUILD_BUG_ON(PPC_MSG_RESCHEDULE       != 1);
+        BUILD_BUG_ON(PPC_MSG_CALL_FUNC_SINGLE != 2);
+        BUILD_BUG_ON(PPC_MSG_DEBUGGER_BREAK   != 3);
 
         for (i = 0; i < MSG_COUNT; i++) {
                 result = ps3_event_receive_port_setup(cpu, &virqs[i]);
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index ebebc28fe89..0fc830f576f 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -383,13 +383,11 @@ static irqreturn_t xics_ipi_dispatch(int cpu)
                         mb();
                         smp_message_recv(PPC_MSG_RESCHEDULE);
                 }
-#if 0
-                if (test_and_clear_bit(PPC_MSG_MIGRATE_TASK,
+                if (test_and_clear_bit(PPC_MSG_CALL_FUNC_SINGLE,
                                        &xics_ipi_message[cpu].value)) {
                         mb();
-                        smp_message_recv(PPC_MSG_MIGRATE_TASK);
+                        smp_message_recv(PPC_MSG_CALL_FUNC_SINGLE);
                 }
-#endif
 #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
                 if (test_and_clear_bit(PPC_MSG_DEBUGGER_BREAK,
                                        &xics_ipi_message[cpu].value)) {
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 7680001676a..6c90c95b454 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1494,7 +1494,7 @@ void mpic_request_ipis(void)
         static char *ipi_names[] = {
                 "IPI0 (call function)",
                 "IPI1 (reschedule)",
-                "IPI2 (unused)",
+                "IPI2 (call function single)",
                 "IPI3 (debugger break)",
         };
         BUG_ON(mpic == NULL);
diff --git a/arch/ppc/kernel/smp.c b/arch/ppc/kernel/smp.c
index 055998575cb..bcab0d210e3 100644
--- a/arch/ppc/kernel/smp.c
+++ b/arch/ppc/kernel/smp.c
@@ -152,7 +152,7 @@ static void stop_this_cpu(void *dummy)
 
 void smp_send_stop(void)
 {
-        smp_call_function(stop_this_cpu, NULL, 1, 0);
+        smp_call_function(stop_this_cpu, NULL, 0);
 }
 
 /*
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index 9cb3d92447a..a7f8979fb92 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -203,7 +203,7 @@ __appldata_vtimer_setup(int cmd)
                         per_cpu(appldata_timer, i).expires = per_cpu_interval;
                         smp_call_function_single(i, add_virt_timer_periodic,
                                                  &per_cpu(appldata_timer, i),
-                                                 0, 1);
+                                                 1);
                 }
                 appldata_timer_active = 1;
                 break;
@@ -228,7 +228,7 @@ __appldata_vtimer_setup(int cmd)
                         args.timer = &per_cpu(appldata_timer, i);
                         args.expires = per_cpu_interval;
                         smp_call_function_single(i, __appldata_mod_vtimer_wrap,
-                                                 &args, 0, 1);
+                                                 &args, 1);
                 }
         }
 }
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 5d4fa4b1c74..b6781030cfb 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -109,7 +109,7 @@ static void do_call_function(void)
 }
 
 static void __smp_call_function_map(void (*func) (void *info), void *info,
-                                    int nonatomic, int wait, cpumask_t map)
+                                    int wait, cpumask_t map)
 {
         struct call_data_struct data;
         int cpu, local = 0;
@@ -162,7 +162,6 @@ out:
  * smp_call_function:
  * @func: the function to run; this must be fast and non-blocking
  * @info: an arbitrary pointer to pass to the function
- * @nonatomic: unused
  * @wait: if true, wait (atomically) until function has completed on other CPUs
  *
  * Run a function on all other CPUs.
@@ -170,15 +169,14 @@ out:
  * You must not call this function with disabled interrupts, from a
  * hardware interrupt handler or from a bottom half.
  */
-int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
-                      int wait)
+int smp_call_function(void (*func) (void *info), void *info, int wait)
 {
         cpumask_t map;
 
         spin_lock(&call_lock);
         map = cpu_online_map;
         cpu_clear(smp_processor_id(), map);
-        __smp_call_function_map(func, info, nonatomic, wait, map);
+        __smp_call_function_map(func, info, wait, map);
         spin_unlock(&call_lock);
         return 0;
 }
@@ -189,7 +187,6 @@ EXPORT_SYMBOL(smp_call_function);
  * @cpu: the CPU where func should run
  * @func: the function to run; this must be fast and non-blocking
  * @info: an arbitrary pointer to pass to the function
- * @nonatomic: unused
  * @wait: if true, wait (atomically) until function has completed on other CPUs
  *
  * Run a function on one processor.
@@ -198,11 +195,10 @@ EXPORT_SYMBOL(smp_call_function);
  * hardware interrupt handler or from a bottom half.
  */
 int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                             int nonatomic, int wait)
+                             int wait)
 {
         spin_lock(&call_lock);
-        __smp_call_function_map(func, info, nonatomic, wait,
-                                cpumask_of_cpu(cpu));
+        __smp_call_function_map(func, info, wait, cpumask_of_cpu(cpu));
         spin_unlock(&call_lock);
         return 0;
 }
@@ -228,7 +224,7 @@ int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info,
 {
         spin_lock(&call_lock);
         cpu_clear(smp_processor_id(), mask);
-        __smp_call_function_map(func, info, 0, wait, mask);
+        __smp_call_function_map(func, info, wait, mask);
         spin_unlock(&call_lock);
         return 0;
 }
@@ -303,7 +299,7 @@ static void smp_ptlb_callback(void *info)
 
 void smp_ptlb_all(void)
 {
-        on_each_cpu(smp_ptlb_callback, NULL, 0, 1);
+        on_each_cpu(smp_ptlb_callback, NULL, 1);
 }
 EXPORT_SYMBOL(smp_ptlb_all);
 #endif /* ! CONFIG_64BIT */
@@ -351,7 +347,7 @@ void smp_ctl_set_bit(int cr, int bit)
         memset(&parms.orvals, 0, sizeof(parms.orvals));
         memset(&parms.andvals, 0xff, sizeof(parms.andvals));
         parms.orvals[cr] = 1 << bit;
-        on_each_cpu(smp_ctl_bit_callback, &parms, 0, 1);
+        on_each_cpu(smp_ctl_bit_callback, &parms, 1);
 }
 EXPORT_SYMBOL(smp_ctl_set_bit);
 
@@ -365,7 +361,7 @@ void smp_ctl_clear_bit(int cr, int bit)
         memset(&parms.orvals, 0, sizeof(parms.orvals));
         memset(&parms.andvals, 0xff, sizeof(parms.andvals));
         parms.andvals[cr] = ~(1L << bit);
-        on_each_cpu(smp_ctl_bit_callback, &parms, 0, 1);
+        on_each_cpu(smp_ctl_bit_callback, &parms, 1);
 }
 EXPORT_SYMBOL(smp_ctl_clear_bit);
 
diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c
index 85e46a5d0e0..57571f10270 100644
--- a/arch/s390/kernel/stacktrace.c
+++ b/arch/s390/kernel/stacktrace.c
@@ -81,6 +81,7 @@ void save_stack_trace(struct stack_trace *trace)
                            S390_lowcore.thread_info,
                            S390_lowcore.thread_info + THREAD_SIZE, 1);
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
 
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
@@ -93,3 +94,4 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
         if (trace->nr_entries < trace->max_entries)
                 trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
+EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 7418bebb547..f2cede3947b 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -707,7 +707,7 @@ static int etr_sync_clock(struct etr_aib *aib, int port)
          */
         memset(&etr_sync, 0, sizeof(etr_sync));
         preempt_disable();
-        smp_call_function(clock_sync_cpu_start, &etr_sync, 0, 0);
+        smp_call_function(clock_sync_cpu_start, &etr_sync, 0);
         local_irq_disable();
         enable_sync_clock();
 
@@ -746,7 +746,7 @@ static int etr_sync_clock(struct etr_aib *aib, int port)
                 rc = -EAGAIN;
         }
         local_irq_enable();
-        smp_call_function(clock_sync_cpu_end, NULL, 0, 0);
+        smp_call_function(clock_sync_cpu_end, NULL, 0);
         preempt_enable();
         return rc;
 }
@@ -926,7 +926,7 @@ static void etr_work_fn(struct work_struct *work)
         if (!eacr.ea) {
                 /* Both ports offline. Reset everything. */
                 eacr.dp = eacr.es = eacr.sl = 0;
-                on_each_cpu(disable_sync_clock, NULL, 0, 1);
+                on_each_cpu(disable_sync_clock, NULL, 1);
                 del_timer_sync(&etr_timer);
                 etr_update_eacr(eacr);
                 clear_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
@@ -1432,7 +1432,7 @@ static void stp_work_fn(struct work_struct *work)
          */
         memset(&stp_sync, 0, sizeof(stp_sync));
         preempt_disable();
-        smp_call_function(clock_sync_cpu_start, &stp_sync, 0, 0);
+        smp_call_function(clock_sync_cpu_start, &stp_sync, 0);
         local_irq_disable();
         enable_sync_clock();
 
@@ -1465,7 +1465,7 @@ static void stp_work_fn(struct work_struct *work)
                 stp_sync.in_sync = 1;
 
         local_irq_enable();
-        smp_call_function(clock_sync_cpu_end, NULL, 0, 0);
+        smp_call_function(clock_sync_cpu_end, NULL, 0);
         preempt_enable();
 }
 
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9a854c8e527..3e7384f4619 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -688,6 +688,7 @@ config CRASH_DUMP
 config SMP
         bool "Symmetric multi-processing support"
         depends on SYS_SUPPORTS_SMP
+        select USE_GENERIC_SMP_HELPERS
         ---help---
           This enables support for systems with more than one CPU. If you have
           a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 5d039d168f5..60c50841143 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -36,13 +36,6 @@ EXPORT_SYMBOL(cpu_possible_map);
 cpumask_t cpu_online_map;
 EXPORT_SYMBOL(cpu_online_map);
 
-static atomic_t cpus_booted = ATOMIC_INIT(0);
-
-/*
- * Run specified function on a particular processor.
- */
-void __smp_call_function(unsigned int cpu);
-
 static inline void __init smp_store_cpu_info(unsigned int cpu)
 {
         struct sh_cpuinfo *c = cpu_data + cpu;
@@ -175,45 +168,20 @@ static void stop_this_cpu(void *unused)
 
 void smp_send_stop(void)
 {
-        smp_call_function(stop_this_cpu, 0, 1, 0);
+        smp_call_function(stop_this_cpu, 0, 0);
 }
 
-struct smp_fn_call_struct smp_fn_call = {
-        .lock           = __SPIN_LOCK_UNLOCKED(smp_fn_call.lock),
-        .finished       = ATOMIC_INIT(0),
-};
-
-/*
- * The caller of this wants the passed function to run on every cpu.  If wait
- * is set, wait until all cpus have finished the function before returning.
- * The lock is here to protect the call structure.
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-int smp_call_function(void (*func)(void *info), void *info, int retry, int wait)
+void arch_send_call_function_ipi(cpumask_t mask)
 {
-        unsigned int nr_cpus = atomic_read(&cpus_booted);
-        int i;
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        spin_lock(&smp_fn_call.lock);
-
-        atomic_set(&smp_fn_call.finished, 0);
-        smp_fn_call.fn = func;
-        smp_fn_call.data = info;
-
-        for (i = 0; i < nr_cpus; i++)
-                if (i != smp_processor_id())
-                        plat_send_ipi(i, SMP_MSG_FUNCTION);
-
-        if (wait)
-                while (atomic_read(&smp_fn_call.finished) != (nr_cpus - 1));
+        int cpu;
 
-        spin_unlock(&smp_fn_call.lock);
+        for_each_cpu_mask(cpu, mask)
+                plat_send_ipi(cpu, SMP_MSG_FUNCTION);
+}
 
-        return 0;
+void arch_send_call_function_single_ipi(int cpu)
+{
+        plat_send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE);
 }
 
 /* Not really SMP stuff ... */
@@ -229,7 +197,7 @@ static void flush_tlb_all_ipi(void *info)
 
 void flush_tlb_all(void)
 {
-        on_each_cpu(flush_tlb_all_ipi, 0, 1, 1);
+        on_each_cpu(flush_tlb_all_ipi, 0, 1);
 }
 
 static void flush_tlb_mm_ipi(void *mm)
@@ -255,7 +223,7 @@ void flush_tlb_mm(struct mm_struct *mm)
         preempt_disable();
 
         if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
-                smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1, 1);
+                smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1);
         } else {
                 int i;
                 for (i = 0; i < num_online_cpus(); i++)
@@ -292,7 +260,7 @@ void flush_tlb_range(struct vm_area_struct *vma,
                 fd.vma = vma;
                 fd.addr1 = start;
                 fd.addr2 = end;
-                smp_call_function(flush_tlb_range_ipi, (void *)&fd, 1, 1);
+                smp_call_function(flush_tlb_range_ipi, (void *)&fd, 1);
         } else {
                 int i;
                 for (i = 0; i < num_online_cpus(); i++)
@@ -316,7 +284,7 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
 
         fd.addr1 = start;
         fd.addr2 = end;
-        on_each_cpu(flush_tlb_kernel_range_ipi, (void *)&fd, 1, 1);
+        on_each_cpu(flush_tlb_kernel_range_ipi, (void *)&fd, 1);
 }
 
 static void flush_tlb_page_ipi(void *info)
@@ -335,7 +303,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 
                 fd.vma = vma;
                 fd.addr1 = page;
-                smp_call_function(flush_tlb_page_ipi, (void *)&fd, 1, 1);
+                smp_call_function(flush_tlb_page_ipi, (void *)&fd, 1);
         } else {
                 int i;
                 for (i = 0; i < num_online_cpus(); i++)
@@ -359,6 +327,6 @@ void flush_tlb_one(unsigned long asid, unsigned long vaddr)
         fd.addr1 = asid;
         fd.addr2 = vaddr;
 
-        smp_call_function(flush_tlb_one_ipi, (void *)&fd, 1, 1);
+        smp_call_function(flush_tlb_one_ipi, (void *)&fd, 1);
         local_flush_tlb_one(asid, vaddr);
 }
diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c
index d41e561be20..1b2ae35c4a7 100644
--- a/arch/sh/kernel/stacktrace.c
+++ b/arch/sh/kernel/stacktrace.c
@@ -34,3 +34,4 @@ void save_stack_trace(struct stack_trace *trace)
                 }
         }
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index fa63c68a181..c099d96f123 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -807,7 +807,6 @@ extern unsigned long xcall_call_function;
  * smp_call_function(): Run a function on all other CPUs.
  * @func: The function to run. This must be fast and non-blocking.
  * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: currently unused.
  * @wait: If true, wait (atomically) until function has completed on other CPUs.
  *
  * Returns 0 on success, else a negative status code. Does not return until
@@ -816,8 +815,8 @@ extern unsigned long xcall_call_function;
  * You must not call this function with disabled interrupts or from a
  * hardware interrupt handler or from a bottom half handler.
  */
-static int smp_call_function_mask(void (*func)(void *info), void *info,
-                                  int nonatomic, int wait, cpumask_t mask)
+static int sparc64_smp_call_function_mask(void (*func)(void *info), void *info,
+                                          int wait, cpumask_t mask)
 {
         struct call_data_struct data;
         int cpus;
@@ -852,11 +851,9 @@ out_unlock:
         return 0;
 }
 
-int smp_call_function(void (*func)(void *info), void *info,
-                      int nonatomic, int wait)
+int smp_call_function(void (*func)(void *info), void *info, int wait)
 {
-        return smp_call_function_mask(func, info, nonatomic, wait,
-                                      cpu_online_map);
+        return sparc64_smp_call_function_mask(func, info, wait, cpu_online_map);
 }
 
 void smp_call_function_client(int irq, struct pt_regs *regs)
@@ -893,7 +890,7 @@ static void tsb_sync(void *info)
 
 void smp_tsb_sync(struct mm_struct *mm)
 {
-        smp_call_function_mask(tsb_sync, mm, 0, 1, mm->cpu_vm_mask);
+        sparc64_smp_call_function_mask(tsb_sync, mm, 1, mm->cpu_vm_mask);
 }
 
 extern unsigned long xcall_flush_tlb_mm;
diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c
index c73ce3f4197..b3e3737750d 100644
--- a/arch/sparc64/kernel/stacktrace.c
+++ b/arch/sparc64/kernel/stacktrace.c
@@ -1,6 +1,7 @@
 #include <linux/sched.h>
 #include <linux/stacktrace.h>
 #include <linux/thread_info.h>
+#include <linux/module.h>
 #include <asm/ptrace.h>
 #include <asm/stacktrace.h>
 
@@ -47,3 +48,4 @@ void save_stack_trace(struct stack_trace *trace)
                         trace->entries[trace->nr_entries++] = pc;
         } while (trace->nr_entries < trace->max_entries);
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c
index 6cfab2e4d34..ebefd2a1437 100644
--- a/arch/sparc64/mm/hugetlbpage.c
+++ b/arch/sparc64/mm/hugetlbpage.c
@@ -344,7 +344,7 @@ void hugetlb_prefault_arch_hook(struct mm_struct *mm)
                          * also executing in this address space.
                          */
                         mm->context.sparc64_ctx_val = ctx;
-                        on_each_cpu(context_reload, mm, 0, 0);
+                        on_each_cpu(context_reload, mm, 0);
                 }
                 spin_unlock(&ctx_alloc_lock);
         }
diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c
index e1062ec36d4..be2d50c3aa9 100644
--- a/arch/um/kernel/smp.c
+++ b/arch/um/kernel/smp.c
@@ -214,8 +214,7 @@ void smp_call_function_slave(int cpu)
         atomic_inc(&scf_finished);
 }
 
-int smp_call_function(void (*_func)(void *info), void *_info, int nonatomic,
-                      int wait)
+int smp_call_function(void (*_func)(void *info), void *_info, int wait)
 {
         int cpus = num_online_cpus() - 1;
         int i;
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6958d6bcaf7..96e0c2ebc38 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -170,6 +170,7 @@ config GENERIC_PENDING_IRQ
 config X86_SMP
         bool
         depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
+        select USE_GENERIC_SMP_HELPERS
         default y
 
 config X86_32_SMP
@@ -447,7 +448,6 @@ config PARAVIRT_DEBUG
 config MEMTEST
         bool "Memtest"
         depends on X86_64
-        default y
         help
           This option adds a kernel parameter 'memtest', which allows memtest
           to be set.
@@ -455,7 +455,7 @@ config MEMTEST
                 memtest=1, mean do 1 test pattern;
                 ...
                 memtest=4, mean do 4 test patterns.
-          If you are unsure how to answer this question, answer Y.
+          If you are unsure how to answer this question, answer N.
 
 config X86_SUMMIT_NUMA
         def_bool y
@@ -1135,21 +1135,18 @@ config MTRR
           See <file:Documentation/mtrr.txt> for more information.
 
 config MTRR_SANITIZER
-        def_bool y
+        bool
         prompt "MTRR cleanup support"
         depends on MTRR
         help
-          Convert MTRR layout from continuous to discrete, so some X driver
-          could add WB entries.
+          Convert MTRR layout from continuous to discrete, so X drivers can
+          add writeback entries.
 
-          Say N here if you see bootup problems (boot crash, boot hang,
-          spontaneous reboots).
+          Can be disabled with disable_mtrr_cleanup on the kernel command line.
+          The largest mtrr entry size for a continous block can be set with
+          mtrr_chunk_size.
 
-          Could be disabled with disable_mtrr_cleanup. Also mtrr_chunk_size
-          could be used to send largest mtrr entry size for continuous block
-          to hold holes (aka. UC entries)
-
-          If unsure, say Y.
+          If unsure, say N.
 
 config MTRR_SANITIZER_ENABLE_DEFAULT
         int "MTRR cleanup enable value (0-1)"
@@ -1166,7 +1163,7 @@ config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
         depends on MTRR_SANITIZER
         help
           mtrr cleanup spare entries default, it can be changed via
-          mtrr_spare_reg_nr=
+          mtrr_spare_reg_nr=N on the kernel command line.
 
 config X86_PAT
         bool
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index e6a4b564cca..793ad2045f5 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -23,6 +23,15 @@ static unsigned long acpi_realmode;
 static char temp_stack[10240];
 #endif
 
+/* XXX: this macro should move to asm-x86/segment.h and be shared with the
+   boot code... */
+#define GDT_ENTRY(flags, base, limit)           \
+        (((u64)(base & 0xff000000) << 32) |     \
+         ((u64)flags << 40) |                   \
+         ((u64)(limit & 0x00ff0000) << 32) |    \
+         ((u64)(base & 0x00ffffff) << 16) |     \
+         ((u64)(limit & 0x0000ffff)))
+
 /**
  * acpi_save_state_mem - save kernel state
  *
@@ -51,18 +60,27 @@ int acpi_save_state_mem(void)
         header->video_mode = saved_video_mode;
 
         header->wakeup_jmp_seg = acpi_wakeup_address >> 4;
+
+        /*
+         * Set up the wakeup GDT.  We set these up as Big Real Mode,
+         * that is, with limits set to 4 GB.  At least the Lenovo
+         * Thinkpad X61 is known to need this for the video BIOS
+         * initialization quirk to work; this is likely to also
+         * be the case for other laptops or integrated video devices.
+         */
+
         /* GDT[0]: GDT self-pointer */
         header->wakeup_gdt[0] =
                 (u64)(sizeof(header->wakeup_gdt) - 1) +
                 ((u64)(acpi_wakeup_address +
                         ((char *)&header->wakeup_gdt - (char *)acpi_realmode))
                                 << 16);
-        /* GDT[1]: real-mode-like code segment */
-        header->wakeup_gdt[1] = (0x009bULL << 40) +
-                ((u64)acpi_wakeup_address << 16) + 0xffff;
-        /* GDT[2]: real-mode-like data segment */
-        header->wakeup_gdt[2] = (0x0093ULL << 40) +
-                ((u64)acpi_wakeup_address << 16) + 0xffff;
+        /* GDT[1]: big real mode-like code segment */
+        header->wakeup_gdt[1] =
+                GDT_ENTRY(0x809b, acpi_wakeup_address, 0xfffff);
+        /* GDT[2]: big real mode-like data segment */
+        header->wakeup_gdt[2] =
+                GDT_ENTRY(0x8093, acpi_wakeup_address, 0xfffff);
 
 #ifndef CONFIG_64BIT
         store_gdt((struct desc_ptr *)&header->pmode_gdt);
diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 3e58b676d23..a437d027f20 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -1340,6 +1340,10 @@ void __init smp_intr_init(void)
 
         /* IPI for generic function call */
         alloc_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
+
+        /* IPI for single call function */
+        set_intr_gate(CALL_FUNCTION_SINGLE_VECTOR,
+                                call_function_single_interrupt);
 }
 #endif
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 98741074518..c4a7ec31394 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -364,7 +364,7 @@ static void mcheck_check_cpu(void *info)
 
 static void mcheck_timer(struct work_struct *work)
 {
-        on_each_cpu(mcheck_check_cpu, NULL, 1, 1);
+        on_each_cpu(mcheck_check_cpu, NULL, 1);
 
         /*
          * Alert userspace if needed.  If we logged an MCE, reduce the
@@ -621,7 +621,7 @@ static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize,
          * Collect entries that were still getting written before the
          * synchronize.
          */
-        on_each_cpu(collect_tscs, cpu_tsc, 1, 1);
+        on_each_cpu(collect_tscs, cpu_tsc, 1);
         for (i = next; i < MCE_LOG_LEN; i++) {
                 if (mcelog.entry[i].finished &&
                     mcelog.entry[i].tsc < cpu_tsc[mcelog.entry[i].cpu]) {
@@ -746,7 +746,7 @@ static void mce_restart(void)
         if (next_interval)
                 cancel_delayed_work(&mcheck_work);
         /* Timer race is harmless here */
-        on_each_cpu(mce_init, NULL, 1, 1);
+        on_each_cpu(mce_init, NULL, 1);
         next_interval = check_interval * HZ;
         if (next_interval)
                 schedule_delayed_work(&mcheck_work,
diff --git a/arch/x86/kernel/cpu/mcheck/non-fatal.c b/arch/x86/kernel/cpu/mcheck/non-fatal.c
index 00ccb6c14ec..cc1fccdd31e 100644
--- a/arch/x86/kernel/cpu/mcheck/non-fatal.c
+++ b/arch/x86/kernel/cpu/mcheck/non-fatal.c
@@ -59,7 +59,7 @@ static DECLARE_DELAYED_WORK(mce_work, mce_work_fn);
 
 static void mce_work_fn(struct work_struct *work)
 {
-        on_each_cpu(mce_checkregs, NULL, 1, 1);
+        on_each_cpu(mce_checkregs, NULL, 1);
         schedule_delayed_work(&mce_work, round_jiffies_relative(MCE_RATE));
 }
 
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 105afe12beb..6f23969c8fa 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -223,7 +223,7 @@ static void set_mtrr(unsigned int reg, unsigned long base,
         atomic_set(&data.gate,0);
 
         /*  Start the ball rolling on other CPUs  */
-        if (smp_call_function(ipi_handler, &data, 1, 0) != 0)
+        if (smp_call_function(ipi_handler, &data, 0) != 0)
                 panic("mtrr: timed out waiting for other CPUs\n");
 
         local_irq_save(flags);
@@ -1682,7 +1682,7 @@ void mtrr_ap_init(void)
  */
 void mtrr_save_state(void)
 {
-        smp_call_function_single(0, mtrr_save_fixed_ranges, NULL, 1, 1);
+        smp_call_function_single(0, mtrr_save_fixed_ranges, NULL, 1);
 }
 
 static int __init mtrr_init_finialize(void)
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index 2e9bef6e3aa..6d4bdc02388 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -189,7 +189,7 @@ void disable_lapic_nmi_watchdog(void)
         if (atomic_read(&nmi_active) <= 0)
                 return;
 
-        on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1);
+        on_each_cpu(stop_apic_nmi_watchdog, NULL, 1);
 
         if (wd_ops)
                 wd_ops->unreserve();
@@ -213,7 +213,7 @@ void enable_lapic_nmi_watchdog(void)
                 return;
         }
 
-        on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1);
+        on_each_cpu(setup_apic_nmi_watchdog, NULL, 1);
         touch_nmi_watchdog();
 }
 
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 71f1c2654be..2de5fa2bbf7 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -96,7 +96,7 @@ static ssize_t cpuid_read(struct file *file, char __user *buf,
         for (; count; count -= 16) {
                 cmd.eax = pos;
                 cmd.ecx = pos >> 32;
-                smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1, 1);
+                smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1);
                 if (copy_to_user(tmp, &cmd, 16))
                         return -EFAULT;
                 tmp += 16;
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index ba41bf42748..ae63e584c34 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -816,6 +816,9 @@ END(invalidate_interrupt\num)
 ENTRY(call_function_interrupt)
         apicinterrupt CALL_FUNCTION_VECTOR,smp_call_function_interrupt
 END(call_function_interrupt)
+ENTRY(call_function_single_interrupt)
+        apicinterrupt CALL_FUNCTION_SINGLE_VECTOR,smp_call_function_single_interrupt
+END(call_function_single_interrupt)
 ENTRY(irq_move_cleanup_interrupt)
         apicinterrupt IRQ_MOVE_CLEANUP_VECTOR,smp_irq_move_cleanup_interrupt
 END(irq_move_cleanup_interrupt)
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 603261a5885..558abf4c796 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -1569,7 +1569,7 @@ void /*__init*/ print_local_APIC(void *dummy)
 
 void print_all_local_APICs(void)
 {
-        on_each_cpu(print_local_APIC, NULL, 1, 1);
+        on_each_cpu(print_local_APIC, NULL, 1);
 }
 
 void /*__init*/ print_PIC(void)
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index b16ef029cf8..6510cde36b3 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -1160,7 +1160,7 @@ void __apicdebuginit print_local_APIC(void * dummy)
 
 void print_all_local_APICs (void)
 {
-        on_each_cpu(print_local_APIC, NULL, 1, 1);
+        on_each_cpu(print_local_APIC, NULL, 1);
 }
 
 void __apicdebuginit print_PIC(void)
diff --git a/arch/x86/kernel/irqinit_64.c b/arch/x86/kernel/irqinit_64.c
index 31f49e8f46a..0373e88de95 100644
--- a/arch/x86/kernel/irqinit_64.c
+++ b/arch/x86/kernel/irqinit_64.c
@@ -199,6 +199,10 @@ void __init native_init_IRQ(void)
         /* IPI for generic function call */
         alloc_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
 
+        /* IPI for generic single function call */
+        alloc_intr_gate(CALL_FUNCTION_SINGLE_VECTOR,
+                        call_function_single_interrupt);
+
         /* Low priority IPI to cleanup after moving an irq */
         set_intr_gate(IRQ_MOVE_CLEANUP_VECTOR, irq_move_cleanup_interrupt);
 #endif
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 21f2bae98c1..a8449571858 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -68,7 +68,7 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
                 load_LDT(pc);
                 mask = cpumask_of_cpu(smp_processor_id());
                 if (!cpus_equal(current->mm->cpu_vm_mask, mask))
-                        smp_call_function(flush_ldt, current->mm, 1, 1);
+                        smp_call_function(flush_ldt, current->mm, 1);
                 preempt_enable();
 #else
                 load_LDT(pc);
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index 716b89284be..ec024b3baad 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -130,7 +130,7 @@ int __init check_nmi_watchdog(void)
 
 #ifdef CONFIG_SMP
         if (nmi_watchdog == NMI_LOCAL_APIC)
-                smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0);
+                smp_call_function(nmi_cpu_busy, (void *)&endflag, 0);
 #endif
 
         for_each_possible_cpu(cpu)
@@ -272,7 +272,7 @@ static void __acpi_nmi_enable(void *__unused)
 void acpi_nmi_enable(void)
 {
         if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
-                on_each_cpu(__acpi_nmi_enable, NULL, 0, 1);
+                on_each_cpu(__acpi_nmi_enable, NULL, 1);
 }
 
 static void __acpi_nmi_disable(void *__unused)
@@ -286,7 +286,7 @@ static void __acpi_nmi_disable(void *__unused)
 void acpi_nmi_disable(void)
 {
         if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC)
-                on_each_cpu(__acpi_nmi_disable, NULL, 0, 1);
+                on_each_cpu(__acpi_nmi_disable, NULL, 1);
 }
 
 void setup_apic_nmi_watchdog(void *unused)
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 4061d63aabe..7dceea94723 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -132,7 +132,7 @@ void cpu_idle_wait(void)
 {
         smp_mb();
         /* kick all the CPUs so that they exit out of pm_idle */
-        smp_call_function(do_nothing, NULL, 0, 1);
+        smp_call_function(do_nothing, NULL, 1);
 }
 EXPORT_SYMBOL_GPL(cpu_idle_wait);
 
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 79bdcd11c66..d1385881810 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -266,6 +266,8 @@ static void old_ich_force_enable_hpet_user(struct pci_dev *dev)
                 hpet_print_force_info();
 }
 
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1,
+                         old_ich_force_enable_hpet_user);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
                          old_ich_force_enable_hpet_user);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12,
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 0cb7aadc87c..361b7a4c640 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -121,132 +121,23 @@ static void native_smp_send_reschedule(int cpu)
         send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR);
 }
 
-/*
- * Structure and data for smp_call_function(). This is designed to minimise
- * static memory requirements. It also looks cleaner.
- */
-static DEFINE_SPINLOCK(call_lock);
-
-struct call_data_struct {
-        void (*func) (void *info);
-        void *info;
-        atomic_t started;
-        atomic_t finished;
-        int wait;
-};
-
-void lock_ipi_call_lock(void)
+void native_send_call_func_single_ipi(int cpu)
 {
-        spin_lock_irq(&call_lock);
-}
-
-void unlock_ipi_call_lock(void)
-{
-        spin_unlock_irq(&call_lock);
-}
-
-static struct call_data_struct *call_data;
-
-static void __smp_call_function(void (*func) (void *info), void *info,
-                                int nonatomic, int wait)
-{
-        struct call_data_struct data;
-        int cpus = num_online_cpus() - 1;
-
-        if (!cpus)
-                return;
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        call_data = &data;
-        mb();
-
-        /* Send a message to all other CPUs and wait for them to respond */
-        send_IPI_allbutself(CALL_FUNCTION_VECTOR);
-
-        /* Wait for response */
-        while (atomic_read(&data.started) != cpus)
-                cpu_relax();
-
-        if (wait)
-                while (atomic_read(&data.finished) != cpus)
-                        cpu_relax();
+        send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNCTION_SINGLE_VECTOR);
 }
 
-
-/**
- * smp_call_function_mask(): Run a function on a set of other CPUs.
- * @mask: The set of cpus to run on.  Must not include the current cpu.
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @wait: If true, wait (atomically) until function has completed on other CPUs.
- *
-  * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-static int
-native_smp_call_function_mask(cpumask_t mask,
-                              void (*func)(void *), void *info,
-                              int wait)
+void native_send_call_func_ipi(cpumask_t mask)
 {
-        struct call_data_struct data;
         cpumask_t allbutself;
-        int cpus;
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        /* Holding any lock stops cpus from going down. */
-        spin_lock(&call_lock);
 
         allbutself = cpu_online_map;
         cpu_clear(smp_processor_id(), allbutself);
 
-        cpus_and(mask, mask, allbutself);
-        cpus = cpus_weight(mask);
-
-        if (!cpus) {
-                spin_unlock(&call_lock);
-                return 0;
-        }
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        call_data = &data;
-        wmb();
-
-        /* Send a message to other CPUs */
         if (cpus_equal(mask, allbutself) &&
             cpus_equal(cpu_online_map, cpu_callout_map))
                 send_IPI_allbutself(CALL_FUNCTION_VECTOR);
         else
                 send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
-
-        /* Wait for response */
-        while (atomic_read(&data.started) != cpus)
-                cpu_relax();
-
-        if (wait)
-                while (atomic_read(&data.finished) != cpus)
-                        cpu_relax();
-        spin_unlock(&call_lock);
-
-        return 0;
 }
 
 static void stop_this_cpu(void *dummy)
@@ -268,18 +159,13 @@ static void stop_this_cpu(void *dummy)
 
 static void native_smp_send_stop(void)
 {
-        int nolock;
         unsigned long flags;
 
         if (reboot_force)
                 return;
 
-        /* Don't deadlock on the call lock in panic */
-        nolock = !spin_trylock(&call_lock);
+        smp_call_function(stop_this_cpu, NULL, 0);
         local_irq_save(flags);
-        __smp_call_function(stop_this_cpu, NULL, 0, 0);
-        if (!nolock)
-                spin_unlock(&call_lock);
         disable_local_APIC();
         local_irq_restore(flags);
 }
@@ -301,33 +187,28 @@ void smp_reschedule_interrupt(struct pt_regs *regs)
 
 void smp_call_function_interrupt(struct pt_regs *regs)
 {
-        void (*func) (void *info) = call_data->func;
-        void *info = call_data->info;
-        int wait = call_data->wait;
-
         ack_APIC_irq();
-        /*
-         * Notify initiating CPU that I've grabbed the data and am
-         * about to execute the function
-         */
-        mb();
-        atomic_inc(&call_data->started);
-        /*
-         * At this point the info structure may be out of scope unless wait==1
-         */
         irq_enter();
-        (*func)(info);
+        generic_smp_call_function_interrupt();
 #ifdef CONFIG_X86_32
         __get_cpu_var(irq_stat).irq_call_count++;
 #else
         add_pda(irq_call_count, 1);
 #endif
         irq_exit();
+}
 
-        if (wait) {
-                mb();
-                atomic_inc(&call_data->finished);
-        }
+void smp_call_function_single_interrupt(struct pt_regs *regs)
+{
+        ack_APIC_irq();
+        irq_enter();
+        generic_smp_call_function_single_interrupt();
+#ifdef CONFIG_X86_32
+        __get_cpu_var(irq_stat).irq_call_count++;
+#else
+        add_pda(irq_call_count, 1);
+#endif
+        irq_exit();
 }
 
 struct smp_ops smp_ops = {
@@ -338,7 +219,8 @@ struct smp_ops smp_ops = {
 
         .smp_send_stop = native_smp_send_stop,
         .smp_send_reschedule = native_smp_send_reschedule,
-        .smp_call_function_mask = native_smp_call_function_mask,
+
+        .send_call_func_ipi = native_send_call_func_ipi,
+        .send_call_func_single_ipi = native_send_call_func_single_ipi,
 };
 EXPORT_SYMBOL_GPL(smp_ops);
-
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index f35c2d8016a..687376ab07e 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -327,12 +327,12 @@ static void __cpuinit start_secondary(void *unused)
          * lock helps us to not include this cpu in a currently in progress
          * smp_call_function().
          */
-        lock_ipi_call_lock();
+        ipi_call_lock_irq();
 #ifdef CONFIG_X86_IO_APIC
         setup_vector_irq(smp_processor_id());
 #endif
         cpu_set(smp_processor_id(), cpu_online_map);
-        unlock_ipi_call_lock();
+        ipi_call_unlock_irq();
         per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
 
         setup_secondary_clock();
diff --git a/arch/x86/kernel/smpcommon.c b/arch/x86/kernel/smpcommon.c
index 3449064d141..99941b37eca 100644
--- a/arch/x86/kernel/smpcommon.c
+++ b/arch/x86/kernel/smpcommon.c
@@ -25,59 +25,3 @@ __cpuinit void init_gdt(int cpu)
         per_cpu(cpu_number, cpu) = cpu;
 }
 #endif
-
-/**
- * smp_call_function(): Run a function on all other CPUs.
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: Unused.
- * @wait: If true, wait (atomically) until function has completed on other CPUs.
- *
- * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
-                      int wait)
-{
-        return smp_call_function_mask(cpu_online_map, func, info, wait);
-}
-EXPORT_SYMBOL(smp_call_function);
-
-/**
- * smp_call_function_single - Run a function on a specific CPU
- * @cpu: The target CPU.  Cannot be the calling CPU.
- * @func: The function to run. This must be fast and non-blocking.
- * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: Unused.
- * @wait: If true, wait until function has completed on other CPUs.
- *
- * Returns 0 on success, else a negative status code.
- *
- * If @wait is true, then returns once @func has returned; otherwise
- * it returns just before the target cpu calls @func.
- */
-int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                             int nonatomic, int wait)
-{
-        /* prevent preemption and reschedule on another processor */
-        int ret;
-        int me = get_cpu();
-        if (cpu == me) {
-                local_irq_disable();
-                func(info);
-                local_irq_enable();
-                put_cpu();
-                return 0;
-        }
-
-        ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait);
-
-        put_cpu();
-        return ret;
-}
-EXPORT_SYMBOL(smp_call_function_single);
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index c28c342c162..a03e7f6d90c 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -74,6 +74,7 @@ void save_stack_trace(struct stack_trace *trace)
         if (trace->nr_entries < trace->max_entries)
                 trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
 
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
@@ -81,3 +82,4 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
         if (trace->nr_entries < trace->max_entries)
                 trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
+EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
diff --git a/arch/x86/kernel/tlb_32.c b/arch/x86/kernel/tlb_32.c
index 9bb2363851a..fec1ecedc9b 100644
--- a/arch/x86/kernel/tlb_32.c
+++ b/arch/x86/kernel/tlb_32.c
@@ -238,6 +238,6 @@ static void do_flush_tlb_all(void *info)
 
 void flush_tlb_all(void)
 {
-        on_each_cpu(do_flush_tlb_all, NULL, 1, 1);
+        on_each_cpu(do_flush_tlb_all, NULL, 1);
 }
 
diff --git a/arch/x86/kernel/tlb_64.c b/arch/x86/kernel/tlb_64.c
index 5039d0f097a..dcbf7a1159e 100644
--- a/arch/x86/kernel/tlb_64.c
+++ b/arch/x86/kernel/tlb_64.c
@@ -275,5 +275,5 @@ static void do_flush_tlb_all(void *info)
 
 void flush_tlb_all(void)
 {
-        on_each_cpu(do_flush_tlb_all, NULL, 1, 1);
+        on_each_cpu(do_flush_tlb_all, NULL, 1);
 }
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 3c36f92160c..7603c055390 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -358,6 +358,7 @@ static cycle_t read_tsc(void)
                 ret : clocksource_tsc.cycle_last;
 }
 
+#ifdef CONFIG_X86_64
 static cycle_t __vsyscall_fn vread_tsc(void)
 {
         cycle_t ret = (cycle_t)vget_cycles();
@@ -365,6 +366,7 @@ static cycle_t __vsyscall_fn vread_tsc(void)
         return ret >= __vsyscall_gtod_data.clock.cycle_last ?
                 ret : __vsyscall_gtod_data.clock.cycle_last;
 }
+#endif
 
 static struct clocksource clocksource_tsc = {
         .name                   = "tsc",
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index e50740d3231..0b8b6690a86 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -279,7 +279,7 @@ cpu_vsyscall_notifier(struct notifier_block *n, unsigned long action, void *arg)
 {
         long cpu = (long)arg;
         if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN)
-                smp_call_function_single(cpu, cpu_vsyscall_init, NULL, 0, 1);
+                smp_call_function_single(cpu, cpu_vsyscall_init, NULL, 1);
         return NOTIFY_DONE;
 }
 
@@ -302,7 +302,7 @@ static int __init vsyscall_init(void)
 #ifdef CONFIG_SYSCTL
         register_sysctl_table(kernel_root_table2);
 #endif
-        on_each_cpu(cpu_vsyscall_init, NULL, 0, 1);
+        on_each_cpu(cpu_vsyscall_init, NULL, 1);
         hotcpu_notifier(cpu_vsyscall_notifier, 0);
         return 0;
 }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 540e9517907..10ce6ee4c49 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -335,7 +335,7 @@ static void vcpu_clear(struct vcpu_vmx *vmx)
 {
         if (vmx->vcpu.cpu == -1)
                 return;
-        smp_call_function_single(vmx->vcpu.cpu, __vcpu_clear, vmx, 0, 1);
+        smp_call_function_single(vmx->vcpu.cpu, __vcpu_clear, vmx, 1);
         vmx->launched = 0;
 }
 
@@ -2968,7 +2968,7 @@ static void vmx_free_vmcs(struct kvm_vcpu *vcpu)
         struct vcpu_vmx *vmx = to_vmx(vcpu);
 
         if (vmx->vmcs) {
-                on_each_cpu(__vcpu_clear, vmx, 0, 1);
+                on_each_cpu(__vcpu_clear, vmx, 1);
                 free_vmcs(vmx->vmcs);
                 vmx->vmcs = NULL;
         }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 63a77caa59f..0faa2546b1c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4044,6 +4044,6 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
          * So need not to call smp_call_function_single() in that case.
          */
         if (vcpu->guest_mode && vcpu->cpu != cpu)
-                smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0);
+                smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0);
         put_cpu();
 }
diff --git a/arch/x86/lib/msr-on-cpu.c b/arch/x86/lib/msr-on-cpu.c
index 57d043fa893..d5a2b39f882 100644
--- a/arch/x86/lib/msr-on-cpu.c
+++ b/arch/x86/lib/msr-on-cpu.c
@@ -30,10 +30,10 @@ static int _rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h, int safe)
 
         rv.msr_no = msr_no;
         if (safe) {
-                smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 0, 1);
+                smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
                 err = rv.err;
         } else {
-                smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 0, 1);
+                smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
         }
         *l = rv.l;
         *h = rv.h;
@@ -64,10 +64,10 @@ static int _wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h, int safe)
         rv.l = l;
         rv.h = h;
         if (safe) {
-                smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 0, 1);
+                smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
                 err = rv.err;
         } else {
-                smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 0, 1);
+                smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
         }
 
         return err;
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 8dedd01e909..ee0fba09215 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -950,94 +950,24 @@ static void smp_stop_cpu_function(void *dummy)
                 halt();
 }
 
-static DEFINE_SPINLOCK(call_lock);
-
-struct call_data_struct {
-        void (*func) (void *info);
-        void *info;
-        volatile unsigned long started;
-        volatile unsigned long finished;
-        int wait;
-};
-
-static struct call_data_struct *call_data;
-
 /* execute a thread on a new CPU.  The function to be called must be
  * previously set up.  This is used to schedule a function for
  * execution on all CPUs - set up the function then broadcast a
  * function_interrupt CPI to come here on each CPU */
 static void smp_call_function_interrupt(void)
 {
-        void (*func) (void *info) = call_data->func;
-        void *info = call_data->info;
-        /* must take copy of wait because call_data may be replaced
-         * unless the function is waiting for us to finish */
-        int wait = call_data->wait;
-        __u8 cpu = smp_processor_id();
-
-        /*
-         * Notify initiating CPU that I've grabbed the data and am
-         * about to execute the function
-         */
-        mb();
-        if (!test_and_clear_bit(cpu, &call_data->started)) {
-                /* If the bit wasn't set, this could be a replay */
-                printk(KERN_WARNING "VOYAGER SMP: CPU %d received call funtion"
-                       " with no call pending\n", cpu);
-                return;
-        }
-        /*
-         * At this point the info structure may be out of scope unless wait==1
-         */
         irq_enter();
-        (*func) (info);
+        generic_smp_call_function_interrupt();
         __get_cpu_var(irq_stat).irq_call_count++;
         irq_exit();
-        if (wait) {
-                mb();
-                clear_bit(cpu, &call_data->finished);
-        }
 }
 
-static int
-voyager_smp_call_function_mask(cpumask_t cpumask,
-                               void (*func) (void *info), void *info, int wait)
+static void smp_call_function_single_interrupt(void)
 {
-        struct call_data_struct data;
-        u32 mask = cpus_addr(cpumask)[0];
-
-        mask &= ~(1 << smp_processor_id());
-
-        if (!mask)
-                return 0;
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        data.func = func;
-        data.info = info;
-        data.started = mask;
-        data.wait = wait;
-        if (wait)
-                data.finished = mask;
-
-        spin_lock(&call_lock);
-        call_data = &data;
-        wmb();
-        /* Send a message to all other CPUs and wait for them to respond */
-        send_CPI(mask, VIC_CALL_FUNCTION_CPI);
-
-        /* Wait for response */
-        while (data.started)
-                barrier();
-
-        if (wait)
-                while (data.finished)
-                        barrier();
-
-        spin_unlock(&call_lock);
-
-        return 0;
+        irq_enter();
+        generic_smp_call_function_single_interrupt();
+        __get_cpu_var(irq_stat).irq_call_count++;
+        irq_exit();
 }
 
 /* Sorry about the name.  In an APIC based system, the APICs
@@ -1094,6 +1024,12 @@ void smp_qic_call_function_interrupt(struct pt_regs *regs)
         smp_call_function_interrupt();
 }
 
+void smp_qic_call_function_single_interrupt(struct pt_regs *regs)
+{
+        ack_QIC_CPI(QIC_CALL_FUNCTION_SINGLE_CPI);
+        smp_call_function_single_interrupt();
+}
+
 void smp_vic_cpi_interrupt(struct pt_regs *regs)
 {
         struct pt_regs *old_regs = set_irq_regs(regs);
@@ -1114,6 +1050,8 @@ void smp_vic_cpi_interrupt(struct pt_regs *regs)
                 smp_enable_irq_interrupt();
         if (test_and_clear_bit(VIC_CALL_FUNCTION_CPI, &vic_cpi_mailbox[cpu]))
                 smp_call_function_interrupt();
+        if (test_and_clear_bit(VIC_CALL_FUNCTION_SINGLE_CPI, &vic_cpi_mailbox[cpu]))
+                smp_call_function_single_interrupt();
         set_irq_regs(old_regs);
 }
 
@@ -1129,7 +1067,7 @@ static void do_flush_tlb_all(void *info)
 /* flush the TLB of every active CPU in the system */
 void flush_tlb_all(void)
 {
-        on_each_cpu(do_flush_tlb_all, 0, 1, 1);
+        on_each_cpu(do_flush_tlb_all, 0, 1);
 }
 
 /* send a reschedule CPI to one CPU by physical CPU number*/
@@ -1161,7 +1099,7 @@ int safe_smp_processor_id(void)
 /* broadcast a halt to all other CPUs */
 static void voyager_smp_send_stop(void)
 {
-        smp_call_function(smp_stop_cpu_function, NULL, 1, 1);
+        smp_call_function(smp_stop_cpu_function, NULL, 1);
 }
 
 /* this function is triggered in time.c when a clock tick fires
@@ -1848,5 +1786,7 @@ struct smp_ops smp_ops = {
 
         .smp_send_stop = voyager_smp_send_stop,
         .smp_send_reschedule = voyager_smp_send_reschedule,
-        .smp_call_function_mask = voyager_smp_call_function_mask,
+
+        .send_call_func_ipi = native_send_call_func_ipi,
+        .send_call_func_single_ipi = native_send_call_func_single_ipi,
 };
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 47f4e2e4a09..65c6e46bf05 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -141,7 +141,7 @@ static void cpa_flush_all(unsigned long cache)
 {
         BUG_ON(irqs_disabled());
 
-        on_each_cpu(__cpa_flush_all, (void *) cache, 1, 1);
+        on_each_cpu(__cpa_flush_all, (void *) cache, 1);
 }
 
 static void __cpa_flush_range(void *arg)
@@ -162,7 +162,7 @@ static void cpa_flush_range(unsigned long start, int numpages, int cache)
         BUG_ON(irqs_disabled());
         WARN_ON(PAGE_ALIGN(start) != start);
 
-        on_each_cpu(__cpa_flush_range, NULL, 1, 1);
+        on_each_cpu(__cpa_flush_range, NULL, 1);
 
         if (!cache)
                 return;
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 2b6ad5b9f9d..7f3329b55d2 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -218,8 +218,8 @@ static int nmi_setup(void)
                 }
 
         }
-        on_each_cpu(nmi_save_registers, NULL, 0, 1);
-        on_each_cpu(nmi_cpu_setup, NULL, 0, 1);
+        on_each_cpu(nmi_save_registers, NULL, 1);
+        on_each_cpu(nmi_cpu_setup, NULL, 1);
         nmi_enabled = 1;
         return 0;
 }
@@ -271,7 +271,7 @@ static void nmi_shutdown(void)
 {
         struct op_msrs *msrs = &get_cpu_var(cpu_msrs);
         nmi_enabled = 0;
-        on_each_cpu(nmi_cpu_shutdown, NULL, 0, 1);
+        on_each_cpu(nmi_cpu_shutdown, NULL, 1);
         unregister_die_notifier(&profile_exceptions_nb);
         model->shutdown(msrs);
         free_msrs();
@@ -286,7 +286,7 @@ static void nmi_cpu_start(void *dummy)
 
 static int nmi_start(void)
 {
-        on_each_cpu(nmi_cpu_start, NULL, 0, 1);
+        on_each_cpu(nmi_cpu_start, NULL, 1);
         return 0;
 }
 
@@ -298,7 +298,7 @@ static void nmi_cpu_stop(void *dummy)
 
 static void nmi_stop(void)
 {
-        on_each_cpu(nmi_cpu_stop, NULL, 0, 1);
+        on_each_cpu(nmi_cpu_stop, NULL, 1);
 }
 
 struct op_counter_config counter_config[OP_MAX_COUNTER];
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index a18141ae3f0..dbf53236971 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -578,7 +578,7 @@ static int __init enable_pci_io_ecs(void)
         /* assume all cpus from fam10h have IO ECS */
         if (boot_cpu_data.x86 < 0x10)
                 return 0;
-        on_each_cpu(enable_pci_io_ecs_per_cpu, NULL, 1, 1);
+        on_each_cpu(enable_pci_io_ecs_per_cpu, NULL, 1);
         pci_probe |= PCI_HAS_IO_ECS;
         return 0;
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index dcd4e51f2f1..bb508456ef5 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1214,7 +1214,9 @@ static const struct smp_ops xen_smp_ops __initdata = {
 
         .smp_send_stop = xen_smp_send_stop,
         .smp_send_reschedule = xen_smp_send_reschedule,
-        .smp_call_function_mask = xen_smp_call_function_mask,
+
+        .send_call_func_ipi = xen_smp_send_call_function_ipi,
+        .send_call_func_single_ipi = xen_smp_send_call_function_single_ipi,
 };
 #endif  /* CONFIG_SMP */
 
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 42b3b9ed641..ff0aa74afaa 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -796,7 +796,7 @@ static void drop_mm_ref(struct mm_struct *mm)
         }
 
         if (!cpus_empty(mask))
-                xen_smp_call_function_mask(mask, drop_other_mm_ref, mm, 1);
+                smp_call_function_mask(mask, drop_other_mm_ref, mm, 1);
 }
 #else
 static void drop_mm_ref(struct mm_struct *mm)
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index d2e3c20127d..233156f39b7 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -36,27 +36,14 @@
 #include "mmu.h"
 
 cpumask_t xen_cpu_initialized_map;
-static DEFINE_PER_CPU(int, resched_irq) = -1;
-static DEFINE_PER_CPU(int, callfunc_irq) = -1;
-static DEFINE_PER_CPU(int, debug_irq) = -1;
-
-/*
- * Structure and data for smp_call_function(). This is designed to minimise
- * static memory requirements. It also looks cleaner.
- */
-static DEFINE_SPINLOCK(call_lock);
 
-struct call_data_struct {
-        void (*func) (void *info);
-        void *info;
-        atomic_t started;
-        atomic_t finished;
-        int wait;
-};
+static DEFINE_PER_CPU(int, resched_irq);
+static DEFINE_PER_CPU(int, callfunc_irq);
+static DEFINE_PER_CPU(int, callfuncsingle_irq);
+static DEFINE_PER_CPU(int, debug_irq) = -1;
 
 static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id);
-
-static struct call_data_struct *call_data;
+static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id);
 
 /*
  * Reschedule call back. Nothing to do,
@@ -128,6 +115,17 @@ static int xen_smp_intr_init(unsigned int cpu)
                 goto fail;
         per_cpu(debug_irq, cpu) = rc;
 
+        callfunc_name = kasprintf(GFP_KERNEL, "callfuncsingle%d", cpu);
+        rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_SINGLE_VECTOR,
+                                    cpu,
+                                    xen_call_function_single_interrupt,
+                                    IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING,
+                                    callfunc_name,
+                                    NULL);
+        if (rc < 0)
+                goto fail;
+        per_cpu(callfuncsingle_irq, cpu) = rc;
+
         return 0;
 
  fail:
@@ -137,6 +135,9 @@ static int xen_smp_intr_init(unsigned int cpu)
                 unbind_from_irqhandler(per_cpu(callfunc_irq, cpu), NULL);
         if (per_cpu(debug_irq, cpu) >= 0)
                 unbind_from_irqhandler(per_cpu(debug_irq, cpu), NULL);
+        if (per_cpu(callfuncsingle_irq, cpu) >= 0)
+                unbind_from_irqhandler(per_cpu(callfuncsingle_irq, cpu), NULL);
+
         return rc;
 }
 
@@ -336,7 +337,7 @@ static void stop_self(void *v)
 
 void xen_smp_send_stop(void)
 {
-        smp_call_function(stop_self, NULL, 0, 0);
+        smp_call_function(stop_self, NULL, 0);
 }
 
 void xen_smp_send_reschedule(int cpu)
@@ -344,7 +345,6 @@ void xen_smp_send_reschedule(int cpu)
         xen_send_IPI_one(cpu, XEN_RESCHEDULE_VECTOR);
 }
 
-
 static void xen_send_IPI_mask(cpumask_t mask, enum ipi_vector vector)
 {
         unsigned cpu;
@@ -355,83 +355,42 @@ static void xen_send_IPI_mask(cpumask_t mask, enum ipi_vector vector)
                 xen_send_IPI_one(cpu, vector);
 }
 
+void xen_smp_send_call_function_ipi(cpumask_t mask)
+{
+        int cpu;
+
+        xen_send_IPI_mask(mask, XEN_CALL_FUNCTION_VECTOR);
+
+        /* Make sure other vcpus get a chance to run if they need to. */
+        for_each_cpu_mask(cpu, mask) {
+                if (xen_vcpu_stolen(cpu)) {
+                        HYPERVISOR_sched_op(SCHEDOP_yield, 0);
+                        break;
+                }
+        }
+}
+
+void xen_smp_send_call_function_single_ipi(int cpu)
+{
+        xen_send_IPI_mask(cpumask_of_cpu(cpu), XEN_CALL_FUNCTION_SINGLE_VECTOR);
+}
+
 static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id)
 {
-        void (*func) (void *info) = call_data->func;
-        void *info = call_data->info;
-        int wait = call_data->wait;
-
-        /*
-         * Notify initiating CPU that I've grabbed the data and am
-         * about to execute the function
-         */
-        mb();
-        atomic_inc(&call_data->started);
-        /*
-         * At this point the info structure may be out of scope unless wait==1
-         */
         irq_enter();
-        (*func)(info);
+        generic_smp_call_function_interrupt();
         __get_cpu_var(irq_stat).irq_call_count++;
         irq_exit();
 
-        if (wait) {
-                mb();           /* commit everything before setting finished */
-                atomic_inc(&call_data->finished);
-        }
-
         return IRQ_HANDLED;
 }
 
-int xen_smp_call_function_mask(cpumask_t mask, void (*func)(void *),
-                               void *info, int wait)
+static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id)
 {
-        struct call_data_struct data;
-        int cpus, cpu;
-        bool yield;
-
-        /* Holding any lock stops cpus from going down. */
-        spin_lock(&call_lock);
-
-        cpu_clear(smp_processor_id(), mask);
-
-        cpus = cpus_weight(mask);
-        if (!cpus) {
-                spin_unlock(&call_lock);
-                return 0;
-        }
-
-        /* Can deadlock when called with interrupts disabled */
-        WARN_ON(irqs_disabled());
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        call_data = &data;
-        mb();                   /* write everything before IPI */
-
-        /* Send a message to other CPUs and wait for them to respond */
-        xen_send_IPI_mask(mask, XEN_CALL_FUNCTION_VECTOR);
-
-        /* Make sure other vcpus get a chance to run if they need to. */
-        yield = false;
-        for_each_cpu_mask(cpu, mask)
-                if (xen_vcpu_stolen(cpu))
-                        yield = true;
-
-        if (yield)
-                HYPERVISOR_sched_op(SCHEDOP_yield, 0);
-
-        /* Wait for response */
-        while (atomic_read(&data.started) != cpus ||
-               (wait && atomic_read(&data.finished) != cpus))
-                cpu_relax();
-
-        spin_unlock(&call_lock);
+        irq_enter();
+        generic_smp_call_function_single_interrupt();
+        __get_cpu_var(irq_stat).irq_call_count++;
+        irq_exit();
 
-        return 0;
+        return IRQ_HANDLED;
 }
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index d852ddbb344..6f4b1045c1c 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -55,13 +55,8 @@ void xen_smp_cpus_done(unsigned int max_cpus);
 
 void xen_smp_send_stop(void);
 void xen_smp_send_reschedule(int cpu);
-int xen_smp_call_function (void (*func) (void *info), void *info, int nonatomic,
-                           int wait);
-int xen_smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                                 int nonatomic, int wait);
-
-int xen_smp_call_function_mask(cpumask_t mask, void (*func)(void *),
-                               void *info, int wait);
+void xen_smp_send_call_function_ipi(cpumask_t mask);
+void xen_smp_send_call_function_single_ipi(int cpu);
 
 extern cpumask_t xen_cpu_initialized_map;
 
diff --git a/block/blk-core.c b/block/blk-core.c
index c6e536597c8..fef79ccb2a1 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1042,15 +1042,9 @@ void blk_put_request(struct request *req)
         unsigned long flags;
         struct request_queue *q = req->q;
 
-        /*
-         * Gee, IDE calls in w/ NULL q.  Fix IDE and remove the
-         * following if (q) test.
-         */
-        if (q) {
-                spin_lock_irqsave(q->queue_lock, flags);
-                __blk_put_request(q, req);
-                spin_unlock_irqrestore(q->queue_lock, flags);
-        }
+        spin_lock_irqsave(q->queue_lock, flags);
+        __blk_put_request(q, req);
+        spin_unlock_irqrestore(q->queue_lock, flags);
 }
 EXPORT_SYMBOL(blk_put_request);
 
diff --git a/block/blk-exec.c b/block/blk-exec.c
index 391dd622489..9bceff7674f 100644
--- a/block/blk-exec.c
+++ b/block/blk-exec.c
@@ -18,7 +18,7 @@
  * @rq: request to complete
  * @error: end io status of the request
  */
-void blk_end_sync_rq(struct request *rq, int error)
+static void blk_end_sync_rq(struct request *rq, int error)
 {
         struct completion *waiting = rq->end_io_data;
 
@@ -31,7 +31,6 @@ void blk_end_sync_rq(struct request *rq, int error)
          */
         complete(waiting);
 }
-EXPORT_SYMBOL(blk_end_sync_rq);
 
 /**
  * blk_execute_rq_nowait - insert a request into queue for execution
@@ -58,6 +57,9 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk,
         spin_lock_irq(q->queue_lock);
         __elv_add_request(q, rq, where, 1);
         __generic_unplug_device(q);
+        /* the queue is stopped so it won't be plugged+unplugged */
+        if (blk_pm_resume_request(rq))
+                q->request_fn(q);
         spin_unlock_irq(q->queue_lock);
 }
 EXPORT_SYMBOL_GPL(blk_execute_rq_nowait);
diff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c
index c6e772fc5cc..095c798d317 100644
--- a/crypto/async_tx/async_tx.c
+++ b/crypto/async_tx/async_tx.c
@@ -23,6 +23,7 @@
  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  *
  */
+#include <linux/rculist.h>
 #include <linux/kernel.h>
 #include <linux/async_tx.h>
 
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 556ee158519..4976e5db2b3 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1339,7 +1339,7 @@ static void smp_callback(void *v)
 static int acpi_processor_latency_notify(struct notifier_block *b,
                 unsigned long l, void *v)
 {
-        smp_call_function(smp_callback, NULL, 0, 1);
+        smp_call_function(smp_callback, NULL, 1);
         return NOTIFY_OK;
 }
 
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 5e6468a7ca4..dc7596f028b 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -56,6 +56,12 @@ MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip)
 static int ahci_enable_alpm(struct ata_port *ap,
                 enum link_pm policy);
 static void ahci_disable_alpm(struct ata_port *ap);
+static ssize_t ahci_led_show(struct ata_port *ap, char *buf);
+static ssize_t ahci_led_store(struct ata_port *ap, const char *buf,
+                              size_t size);
+static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
+                                        ssize_t size);
+#define MAX_SLOTS 8
 
 enum {
         AHCI_PCI_BAR            = 5,
@@ -98,6 +104,8 @@ enum {
         HOST_IRQ_STAT           = 0x08, /* interrupt status */
         HOST_PORTS_IMPL         = 0x0c, /* bitmap of implemented ports */
         HOST_VERSION            = 0x10, /* AHCI spec. version compliancy */
+        HOST_EM_LOC             = 0x1c, /* Enclosure Management location */
+        HOST_EM_CTL             = 0x20, /* Enclosure Management Control */
 
         /* HOST_CTL bits */
         HOST_RESET              = (1 << 0),  /* reset controller; self-clear */
@@ -105,6 +113,7 @@ enum {
         HOST_AHCI_EN            = (1 << 31), /* AHCI enabled */
 
         /* HOST_CAP bits */
+        HOST_CAP_EMS            = (1 << 6),  /* Enclosure Management support */
         HOST_CAP_SSC            = (1 << 14), /* Slumber capable */
         HOST_CAP_PMP            = (1 << 17), /* Port Multiplier support */
         HOST_CAP_CLO            = (1 << 24), /* Command List Override support */
@@ -202,6 +211,11 @@ enum {
                                           ATA_FLAG_IPM,
 
         ICH_MAP                         = 0x90, /* ICH MAP register */
+
+        /* em_ctl bits */
+        EM_CTL_RST                      = (1 << 9), /* Reset */
+        EM_CTL_TM                       = (1 << 8), /* Transmit Message */
+        EM_CTL_ALHD                     = (1 << 26), /* Activity LED */
 };
 
 struct ahci_cmd_hdr {
@@ -219,12 +233,21 @@ struct ahci_sg {
         __le32                  flags_size;
 };
 
+struct ahci_em_priv {
+        enum sw_activity blink_policy;
+        struct timer_list timer;
+        unsigned long saved_activity;
+        unsigned long activity;
+        unsigned long led_state;
+};
+
 struct ahci_host_priv {
         unsigned int            flags;          /* AHCI_HFLAG_* */
         u32                     cap;            /* cap to use */
         u32                     port_map;       /* port map to use */
         u32                     saved_cap;      /* saved initial cap */
         u32                     saved_port_map; /* saved initial port_map */
+        u32                     em_loc; /* enclosure management location */
 };
 
 struct ahci_port_priv {
@@ -240,6 +263,8 @@ struct ahci_port_priv {
         unsigned int            ncq_saw_dmas:1;
         unsigned int            ncq_saw_sdb:1;
         u32                     intr_mask;      /* interrupts to enable */
+        struct ahci_em_priv     em_priv[MAX_SLOTS];/* enclosure management info
+                                                 * per PM slot */
 };
 
 static int ahci_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
@@ -277,9 +302,20 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg);
 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
 static int ahci_pci_device_resume(struct pci_dev *pdev);
 #endif
+static ssize_t ahci_activity_show(struct ata_device *dev, char *buf);
+static ssize_t ahci_activity_store(struct ata_device *dev,
+                                   enum sw_activity val);
+static void ahci_init_sw_activity(struct ata_link *link);
 
 static struct device_attribute *ahci_shost_attrs[] = {
         &dev_attr_link_power_management_policy,
+        &dev_attr_em_message_type,
+        &dev_attr_em_message,
+        NULL
+};
+
+static struct device_attribute *ahci_sdev_attrs[] = {
+        &dev_attr_sw_activity,
         NULL
 };
 
@@ -289,6 +325,7 @@ static struct scsi_host_template ahci_sht = {
         .sg_tablesize           = AHCI_MAX_SG,
         .dma_boundary           = AHCI_DMA_BOUNDARY,
         .shost_attrs            = ahci_shost_attrs,
+        .sdev_attrs             = ahci_sdev_attrs,
 };
 
 static struct ata_port_operations ahci_ops = {
@@ -316,6 +353,10 @@ static struct ata_port_operations ahci_ops = {
 
         .enable_pm              = ahci_enable_alpm,
         .disable_pm             = ahci_disable_alpm,
+        .em_show                = ahci_led_show,
+        .em_store               = ahci_led_store,
+        .sw_activity_show       = ahci_activity_show,
+        .sw_activity_store      = ahci_activity_store,
 #ifdef CONFIG_PM
         .port_suspend           = ahci_port_suspend,
         .port_resume            = ahci_port_resume,
@@ -561,6 +602,11 @@ static struct pci_driver ahci_pci_driver = {
 #endif
 };
 
+static int ahci_em_messages = 1;
+module_param(ahci_em_messages, int, 0444);
+/* add other LED protocol types when they become supported */
+MODULE_PARM_DESC(ahci_em_messages,
+        "Set AHCI Enclosure Management Message type (0 = disabled, 1 = LED");
 
 static inline int ahci_nr_ports(u32 cap)
 {
@@ -1031,11 +1077,28 @@ static void ahci_power_down(struct ata_port *ap)
 
 static void ahci_start_port(struct ata_port *ap)
 {
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ata_link *link;
+        struct ahci_em_priv *emp;
+
         /* enable FIS reception */
         ahci_start_fis_rx(ap);
 
         /* enable DMA */
         ahci_start_engine(ap);
+
+        /* turn on LEDs */
+        if (ap->flags & ATA_FLAG_EM) {
+                ata_port_for_each_link(link, ap) {
+                        emp = &pp->em_priv[link->pmp];
+                        ahci_transmit_led_message(ap, emp->led_state, 4);
+                }
+        }
+
+        if (ap->flags & ATA_FLAG_SW_ACTIVITY)
+                ata_port_for_each_link(link, ap)
+                        ahci_init_sw_activity(link);
+
 }
 
 static int ahci_deinit_port(struct ata_port *ap, const char **emsg)
@@ -1079,12 +1142,15 @@ static int ahci_reset_controller(struct ata_host *host)
                         readl(mmio + HOST_CTL); /* flush */
                 }
 
-                /* reset must complete within 1 second, or
+                /*
+                 * to perform host reset, OS should set HOST_RESET
+                 * and poll until this bit is read to be "0".
+                 * reset must complete within 1 second, or
                  * the hardware should be considered fried.
                  */
-                ssleep(1);
+                tmp = ata_wait_register(mmio + HOST_CTL, HOST_RESET,
+                                        HOST_RESET, 10, 1000);
 
-                tmp = readl(mmio + HOST_CTL);
                 if (tmp & HOST_RESET) {
                         dev_printk(KERN_ERR, host->dev,
                                    "controller reset failed (0x%x)\n", tmp);
@@ -1116,6 +1182,230 @@ static int ahci_reset_controller(struct ata_host *host)
         return 0;
 }
 
+static void ahci_sw_activity(struct ata_link *link)
+{
+        struct ata_port *ap = link->ap;
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ahci_em_priv *emp = &pp->em_priv[link->pmp];
+
+        if (!(link->flags & ATA_LFLAG_SW_ACTIVITY))
+                return;
+
+        emp->activity++;
+        if (!timer_pending(&emp->timer))
+                mod_timer(&emp->timer, jiffies + msecs_to_jiffies(10));
+}
+
+static void ahci_sw_activity_blink(unsigned long arg)
+{
+        struct ata_link *link = (struct ata_link *)arg;
+        struct ata_port *ap = link->ap;
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ahci_em_priv *emp = &pp->em_priv[link->pmp];
+        unsigned long led_message = emp->led_state;
+        u32 activity_led_state;
+
+        led_message &= 0xffff0000;
+        led_message |= ap->port_no | (link->pmp << 8);
+
+        /* check to see if we've had activity.  If so,
+         * toggle state of LED and reset timer.  If not,
+         * turn LED to desired idle state.
+         */
+        if (emp->saved_activity != emp->activity) {
+                emp->saved_activity = emp->activity;
+                /* get the current LED state */
+                activity_led_state = led_message & 0x00010000;
+
+                if (activity_led_state)
+                        activity_led_state = 0;
+                else
+                        activity_led_state = 1;
+
+                /* clear old state */
+                led_message &= 0xfff8ffff;
+
+                /* toggle state */
+                led_message |= (activity_led_state << 16);
+                mod_timer(&emp->timer, jiffies + msecs_to_jiffies(100));
+        } else {
+                /* switch to idle */
+                led_message &= 0xfff8ffff;
+                if (emp->blink_policy == BLINK_OFF)
+                        led_message |= (1 << 16);
+        }
+        ahci_transmit_led_message(ap, led_message, 4);
+}
+
+static void ahci_init_sw_activity(struct ata_link *link)
+{
+        struct ata_port *ap = link->ap;
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ahci_em_priv *emp = &pp->em_priv[link->pmp];
+
+        /* init activity stats, setup timer */
+        emp->saved_activity = emp->activity = 0;
+        setup_timer(&emp->timer, ahci_sw_activity_blink, (unsigned long)link);
+
+        /* check our blink policy and set flag for link if it's enabled */
+        if (emp->blink_policy)
+                link->flags |= ATA_LFLAG_SW_ACTIVITY;
+}
+
+static int ahci_reset_em(struct ata_host *host)
+{
+        void __iomem *mmio = host->iomap[AHCI_PCI_BAR];
+        u32 em_ctl;
+
+        em_ctl = readl(mmio + HOST_EM_CTL);
+        if ((em_ctl & EM_CTL_TM) || (em_ctl & EM_CTL_RST))
+                return -EINVAL;
+
+        writel(em_ctl | EM_CTL_RST, mmio + HOST_EM_CTL);
+        return 0;
+}
+
+static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
+                                        ssize_t size)
+{
+        struct ahci_host_priv *hpriv = ap->host->private_data;
+        struct ahci_port_priv *pp = ap->private_data;
+        void __iomem *mmio = ap->host->iomap[AHCI_PCI_BAR];
+        u32 em_ctl;
+        u32 message[] = {0, 0};
+        unsigned int flags;
+        int pmp;
+        struct ahci_em_priv *emp;
+
+        /* get the slot number from the message */
+        pmp = (state & 0x0000ff00) >> 8;
+        if (pmp < MAX_SLOTS)
+                emp = &pp->em_priv[pmp];
+        else
+                return -EINVAL;
+
+        spin_lock_irqsave(ap->lock, flags);
+
+        /*
+         * if we are still busy transmitting a previous message,
+         * do not allow
+         */
+        em_ctl = readl(mmio + HOST_EM_CTL);
+        if (em_ctl & EM_CTL_TM) {
+                spin_unlock_irqrestore(ap->lock, flags);
+                return -EINVAL;
+        }
+
+        /*
+         * create message header - this is all zero except for
+         * the message size, which is 4 bytes.
+         */
+        message[0] |= (4 << 8);
+
+        /* ignore 0:4 of byte zero, fill in port info yourself */
+        message[1] = ((state & 0xfffffff0) | ap->port_no);
+
+        /* write message to EM_LOC */
+        writel(message[0], mmio + hpriv->em_loc);
+        writel(message[1], mmio + hpriv->em_loc+4);
+
+        /* save off new led state for port/slot */
+        emp->led_state = message[1];
+
+        /*
+         * tell hardware to transmit the message
+         */
+        writel(em_ctl | EM_CTL_TM, mmio + HOST_EM_CTL);
+
+        spin_unlock_irqrestore(ap->lock, flags);
+        return size;
+}
+
+static ssize_t ahci_led_show(struct ata_port *ap, char *buf)
+{
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ata_link *link;
+        struct ahci_em_priv *emp;
+        int rc = 0;
+
+        ata_port_for_each_link(link, ap) {
+                emp = &pp->em_priv[link->pmp];
+                rc += sprintf(buf, "%lx\n", emp->led_state);
+        }
+        return rc;
+}
+
+static ssize_t ahci_led_store(struct ata_port *ap, const char *buf,
+                                size_t size)
+{
+        int state;
+        int pmp;
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ahci_em_priv *emp;
+
+        state = simple_strtoul(buf, NULL, 0);
+
+        /* get the slot number from the message */
+        pmp = (state & 0x0000ff00) >> 8;
+        if (pmp < MAX_SLOTS)
+                emp = &pp->em_priv[pmp];
+        else
+                return -EINVAL;
+
+        /* mask off the activity bits if we are in sw_activity
+         * mode, user should turn off sw_activity before setting
+         * activity led through em_message
+         */
+        if (emp->blink_policy)
+                state &= 0xfff8ffff;
+
+        return ahci_transmit_led_message(ap, state, size);
+}
+
+static ssize_t ahci_activity_store(struct ata_device *dev, enum sw_activity val)
+{
+        struct ata_link *link = dev->link;
+        struct ata_port *ap = link->ap;
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ahci_em_priv *emp = &pp->em_priv[link->pmp];
+        u32 port_led_state = emp->led_state;
+
+        /* save the desired Activity LED behavior */
+        if (val == OFF) {
+                /* clear LFLAG */
+                link->flags &= ~(ATA_LFLAG_SW_ACTIVITY);
+
+                /* set the LED to OFF */
+                port_led_state &= 0xfff80000;
+                port_led_state |= (ap->port_no | (link->pmp << 8));
+                ahci_transmit_led_message(ap, port_led_state, 4);
+        } else {
+                link->flags |= ATA_LFLAG_SW_ACTIVITY;
+                if (val == BLINK_OFF) {
+                        /* set LED to ON for idle */
+                        port_led_state &= 0xfff80000;
+                        port_led_state |= (ap->port_no | (link->pmp << 8));
+                        port_led_state |= 0x00010000; /* check this */
+                        ahci_transmit_led_message(ap, port_led_state, 4);
+                }
+        }
+        emp->blink_policy = val;
+        return 0;
+}
+
+static ssize_t ahci_activity_show(struct ata_device *dev, char *buf)
+{
+        struct ata_link *link = dev->link;
+        struct ata_port *ap = link->ap;
+        struct ahci_port_priv *pp = ap->private_data;
+        struct ahci_em_priv *emp = &pp->em_priv[link->pmp];
+
+        /* display the saved value of activity behavior for this
+         * disk.
+         */
+        return sprintf(buf, "%d\n", emp->blink_policy);
+}
+
 static void ahci_port_init(struct pci_dev *pdev, struct ata_port *ap,
                            int port_no, void __iomem *mmio,
                            void __iomem *port_mmio)
@@ -1846,7 +2136,8 @@ static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc)
         if (qc->tf.protocol == ATA_PROT_NCQ)
                 writel(1 << qc->tag, port_mmio + PORT_SCR_ACT);
         writel(1 << qc->tag, port_mmio + PORT_CMD_ISSUE);
-        readl(port_mmio + PORT_CMD_ISSUE);      /* flush */
+
+        ahci_sw_activity(qc->dev->link);
 
         return 0;
 }
@@ -2154,7 +2445,8 @@ static void ahci_print_info(struct ata_host *host)
         dev_printk(KERN_INFO, &pdev->dev,
                 "flags: "
                 "%s%s%s%s%s%s%s"
-                "%s%s%s%s%s%s%s\n"
+                "%s%s%s%s%s%s%s"
+                "%s\n"
                 ,
 
                 cap & (1 << 31) ? "64bit " : "",
@@ -2171,7 +2463,8 @@ static void ahci_print_info(struct ata_host *host)
                 cap & (1 << 17) ? "pmp " : "",
                 cap & (1 << 15) ? "pio " : "",
                 cap & (1 << 14) ? "slum " : "",
-                cap & (1 << 13) ? "part " : ""
+                cap & (1 << 13) ? "part " : "",
+                cap & (1 << 6) ? "ems ": ""
                 );
 }
 
@@ -2291,6 +2584,24 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         if (hpriv->cap & HOST_CAP_PMP)
                 pi.flags |= ATA_FLAG_PMP;
 
+        if (ahci_em_messages && (hpriv->cap & HOST_CAP_EMS)) {
+                u8 messages;
+                void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
+                u32 em_loc = readl(mmio + HOST_EM_LOC);
+                u32 em_ctl = readl(mmio + HOST_EM_CTL);
+
+                messages = (em_ctl & 0x000f0000) >> 16;
+
+                /* we only support LED message type right now */
+                if ((messages & 0x01) && (ahci_em_messages == 1)) {
+                        /* store em_loc */
+                        hpriv->em_loc = ((em_loc >> 16) * 4);
+                        pi.flags |= ATA_FLAG_EM;
+                        if (!(em_ctl & EM_CTL_ALHD))
+                                pi.flags |= ATA_FLAG_SW_ACTIVITY;
+                }
+        }
+
         /* CAP.NP sometimes indicate the index of the last enabled
          * port, at other times, that of the last possible port, so
          * determining the maximum port number requires looking at
@@ -2304,6 +2615,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         host->iomap = pcim_iomap_table(pdev);
         host->private_data = hpriv;
 
+        if (pi.flags & ATA_FLAG_EM)
+                ahci_reset_em(host);
+
         for (i = 0; i < host->n_ports; i++) {
                 struct ata_port *ap = host->ports[i];
 
@@ -2314,6 +2628,11 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 /* set initial link pm policy */
                 ap->pm_policy = NOT_AVAILABLE;
 
+                /* set enclosure management message type */
+                if (ap->flags & ATA_FLAG_EM)
+                        ap->em_message_type = ahci_em_messages;
+
+
                 /* disabled/not-implemented port */
                 if (!(hpriv->port_map & (1 << i)))
                         ap->ops = &ata_dummy_port_ops;
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 303fc0d2b97..9bef1a84fe3 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -54,7 +54,6 @@
 #include <linux/completion.h>
 #include <linux/suspend.h>
 #include <linux/workqueue.h>
-#include <linux/jiffies.h>
 #include <linux/scatterlist.h>
 #include <linux/io.h>
 #include <scsi/scsi.h>
@@ -145,7 +144,7 @@ static int libata_dma_mask = ATA_DMA_MASK_ATA|ATA_DMA_MASK_ATAPI|ATA_DMA_MASK_CF
 module_param_named(dma, libata_dma_mask, int, 0444);
 MODULE_PARM_DESC(dma, "DMA enable/disable (0x1==ATA, 0x2==ATAPI, 0x4==CF)");
 
-static int ata_probe_timeout = ATA_TMOUT_INTERNAL / HZ;
+static int ata_probe_timeout;
 module_param(ata_probe_timeout, int, 0444);
 MODULE_PARM_DESC(ata_probe_timeout, "Set ATA probing timeout (seconds)");
 
@@ -1533,7 +1532,7 @@ unsigned long ata_id_xfermask(const u16 *id)
  *      @ap: The ata_port to queue port_task for
  *      @fn: workqueue function to be scheduled
  *      @data: data for @fn to use
- *      @delay: delay time for workqueue function
+ *      @delay: delay time in msecs for workqueue function
  *
  *      Schedule @fn(@data) for execution after @delay jiffies using
  *      port_task.  There is one port_task per port and it's the
@@ -1552,7 +1551,7 @@ void ata_pio_queue_task(struct ata_port *ap, void *data, unsigned long delay)
         ap->port_task_data = data;
 
         /* may fail if ata_port_flush_task() in progress */
-        queue_delayed_work(ata_wq, &ap->port_task, delay);
+        queue_delayed_work(ata_wq, &ap->port_task, msecs_to_jiffies(delay));
 }
 
 /**
@@ -1612,6 +1611,7 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
         struct ata_link *link = dev->link;
         struct ata_port *ap = link->ap;
         u8 command = tf->command;
+        int auto_timeout = 0;
         struct ata_queued_cmd *qc;
         unsigned int tag, preempted_tag;
         u32 preempted_sactive, preempted_qc_active;
@@ -1684,8 +1684,14 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
 
         spin_unlock_irqrestore(ap->lock, flags);
 
-        if (!timeout)
-                timeout = ata_probe_timeout * 1000 / HZ;
+        if (!timeout) {
+                if (ata_probe_timeout)
+                        timeout = ata_probe_timeout * 1000;
+                else {
+                        timeout = ata_internal_cmd_timeout(dev, command);
+                        auto_timeout = 1;
+                }
+        }
 
         rc = wait_for_completion_timeout(&wait, msecs_to_jiffies(timeout));
 
@@ -1761,6 +1767,9 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
 
         spin_unlock_irqrestore(ap->lock, flags);
 
+        if ((err_mask & AC_ERR_TIMEOUT) && auto_timeout)
+                ata_internal_cmd_timed_out(dev, command);
+
         return err_mask;
 }
 
@@ -3319,7 +3328,7 @@ int ata_wait_ready(struct ata_link *link, unsigned long deadline,
                    int (*check_ready)(struct ata_link *link))
 {
         unsigned long start = jiffies;
-        unsigned long nodev_deadline = start + ATA_TMOUT_FF_WAIT;
+        unsigned long nodev_deadline = ata_deadline(start, ATA_TMOUT_FF_WAIT);
         int warned = 0;
 
         if (time_after(nodev_deadline, deadline))
@@ -3387,7 +3396,7 @@ int ata_wait_ready(struct ata_link *link, unsigned long deadline,
 int ata_wait_after_reset(struct ata_link *link, unsigned long deadline,
                                 int (*check_ready)(struct ata_link *link))
 {
-        msleep(ATA_WAIT_AFTER_RESET_MSECS);
+        msleep(ATA_WAIT_AFTER_RESET);
 
         return ata_wait_ready(link, deadline, check_ready);
 }
@@ -3417,13 +3426,13 @@ int ata_wait_after_reset(struct ata_link *link, unsigned long deadline,
 int sata_link_debounce(struct ata_link *link, const unsigned long *params,
                        unsigned long deadline)
 {
-        unsigned long interval_msec = params[0];
-        unsigned long duration = msecs_to_jiffies(params[1]);
+        unsigned long interval = params[0];
+        unsigned long duration = params[1];
         unsigned long last_jiffies, t;
         u32 last, cur;
         int rc;
 
-        t = jiffies + msecs_to_jiffies(params[2]);
+        t = ata_deadline(jiffies, params[2]);
         if (time_before(t, deadline))
                 deadline = t;
 
@@ -3435,7 +3444,7 @@ int sata_link_debounce(struct ata_link *link, const unsigned long *params,
         last_jiffies = jiffies;
 
         while (1) {
-                msleep(interval_msec);
+                msleep(interval);
                 if ((rc = sata_scr_read(link, SCR_STATUS, &cur)))
                         return rc;
                 cur &= 0xf;
@@ -3444,7 +3453,8 @@ int sata_link_debounce(struct ata_link *link, const unsigned long *params,
                 if (cur == last) {
                         if (cur == 1 && time_before(jiffies, deadline))
                                 continue;
-                        if (time_after(jiffies, last_jiffies + duration))
+                        if (time_after(jiffies,
+                                       ata_deadline(last_jiffies, duration)))
                                 return 0;
                         continue;
                 }
@@ -3636,7 +3646,8 @@ int sata_link_hardreset(struct ata_link *link, const unsigned long *timing,
                 if (check_ready) {
                         unsigned long pmp_deadline;
 
-                        pmp_deadline = jiffies + ATA_TMOUT_PMP_SRST_WAIT;
+                        pmp_deadline = ata_deadline(jiffies,
+                                                    ATA_TMOUT_PMP_SRST_WAIT);
                         if (time_after(pmp_deadline, deadline))
                                 pmp_deadline = deadline;
                         ata_wait_ready(link, pmp_deadline, check_ready);
@@ -6073,8 +6084,6 @@ static void __init ata_parse_force_param(void)
 
 static int __init ata_init(void)
 {
-        ata_probe_timeout *= HZ;
-
         ata_parse_force_param();
 
         ata_wq = create_workqueue("ata");
@@ -6127,8 +6136,8 @@ int ata_ratelimit(void)
  *      @reg: IO-mapped register
  *      @mask: Mask to apply to read register value
  *      @val: Wait condition
- *      @interval_msec: polling interval in milliseconds
- *      @timeout_msec: timeout in milliseconds
+ *      @interval: polling interval in milliseconds
+ *      @timeout: timeout in milliseconds
  *
  *      Waiting for some bits of register to change is a common
  *      operation for ATA controllers.  This function reads 32bit LE
@@ -6146,10 +6155,9 @@ int ata_ratelimit(void)
  *      The final register value.
  */
 u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
-                      unsigned long interval_msec,
-                      unsigned long timeout_msec)
+                      unsigned long interval, unsigned long timeout)
 {
-        unsigned long timeout;
+        unsigned long deadline;
         u32 tmp;
 
         tmp = ioread32(reg);
@@ -6158,10 +6166,10 @@ u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
          * preceding writes reach the controller before starting to
          * eat away the timeout.
          */
-        timeout = jiffies + (timeout_msec * HZ) / 1000;
+        deadline = ata_deadline(jiffies, timeout);
 
-        while ((tmp & mask) == val && time_before(jiffies, timeout)) {
-                msleep(interval_msec);
+        while ((tmp & mask) == val && time_before(jiffies, deadline)) {
+                msleep(interval);
                 tmp = ioread32(reg);
         }
 
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 7894d83ea1e..58bdc538d22 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -66,15 +66,19 @@ enum {
         ATA_ECAT_DUBIOUS_TOUT_HSM       = 6,
         ATA_ECAT_DUBIOUS_UNK_DEV        = 7,
         ATA_ECAT_NR                     = 8,
-};
 
-/* Waiting in ->prereset can never be reliable.  It's sometimes nice
- * to wait there but it can't be depended upon; otherwise, we wouldn't
- * be resetting.  Just give it enough time for most drives to spin up.
- */
-enum {
-        ATA_EH_PRERESET_TIMEOUT         = 10 * HZ,
-        ATA_EH_FASTDRAIN_INTERVAL       = 3 * HZ,
+        ATA_EH_CMD_DFL_TIMEOUT          =  5000,
+
+        /* always put at least this amount of time between resets */
+        ATA_EH_RESET_COOL_DOWN          =  5000,
+
+        /* Waiting in ->prereset can never be reliable.  It's
+         * sometimes nice to wait there but it can't be depended upon;
+         * otherwise, we wouldn't be resetting.  Just give it enough
+         * time for most drives to spin up.
+         */
+        ATA_EH_PRERESET_TIMEOUT         = 10000,
+        ATA_EH_FASTDRAIN_INTERVAL       =  3000,
 };
 
 /* The following table determines how we sequence resets.  Each entry
@@ -84,12 +88,59 @@ enum {
  * are mostly for error handling, hotplug and retarded devices.
  */
 static const unsigned long ata_eh_reset_timeouts[] = {
-        10 * HZ,        /* most drives spin up by 10sec */
-        10 * HZ,        /* > 99% working drives spin up before 20sec */
-        35 * HZ,        /* give > 30 secs of idleness for retarded devices */
-        5 * HZ,         /* and sweet one last chance */
-        /* > 1 min has elapsed, give up */
+        10000,  /* most drives spin up by 10sec */
+        10000,  /* > 99% working drives spin up before 20sec */
+        35000,  /* give > 30 secs of idleness for retarded devices */
+         5000,  /* and sweet one last chance */
+        ULONG_MAX, /* > 1 min has elapsed, give up */
+};
+
+static const unsigned long ata_eh_identify_timeouts[] = {
+         5000,  /* covers > 99% of successes and not too boring on failures */
+        10000,  /* combined time till here is enough even for media access */
+        30000,  /* for true idiots */
+        ULONG_MAX,
+};
+
+static const unsigned long ata_eh_other_timeouts[] = {
+         5000,  /* same rationale as identify timeout */
+        10000,  /* ditto */
+        /* but no merciful 30sec for other commands, it just isn't worth it */
+        ULONG_MAX,
+};
+
+struct ata_eh_cmd_timeout_ent {
+        const u8                *commands;
+        const unsigned long     *timeouts;
+};
+
+/* The following table determines timeouts to use for EH internal
+ * commands.  Each table entry is a command class and matches the
+ * commands the entry applies to and the timeout table to use.
+ *
+ * On the retry after a command timed out, the next timeout value from
+ * the table is used.  If the table doesn't contain further entries,
+ * the last value is used.
+ *
+ * ehc->cmd_timeout_idx keeps track of which timeout to use per
+ * command class, so if SET_FEATURES times out on the first try, the
+ * next try will use the second timeout value only for that class.
+ */
+#define CMDS(cmds...)   (const u8 []){ cmds, 0 }
+static const struct ata_eh_cmd_timeout_ent
+ata_eh_cmd_timeout_table[ATA_EH_CMD_TIMEOUT_TABLE_SIZE] = {
+        { .commands = CMDS(ATA_CMD_ID_ATA, ATA_CMD_ID_ATAPI),
+          .timeouts = ata_eh_identify_timeouts, },
+        { .commands = CMDS(ATA_CMD_READ_NATIVE_MAX, ATA_CMD_READ_NATIVE_MAX_EXT),
+          .timeouts = ata_eh_other_timeouts, },
+        { .commands = CMDS(ATA_CMD_SET_MAX, ATA_CMD_SET_MAX_EXT),
+          .timeouts = ata_eh_other_timeouts, },
+        { .commands = CMDS(ATA_CMD_SET_FEATURES),
+          .timeouts = ata_eh_other_timeouts, },
+        { .commands = CMDS(ATA_CMD_INIT_DEV_PARAMS),
+          .timeouts = ata_eh_other_timeouts, },
 };
+#undef CMDS
 
 static void __ata_port_freeze(struct ata_port *ap);
 #ifdef CONFIG_PM
@@ -236,6 +287,73 @@ void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset,
 
 #endif /* CONFIG_PCI */
 
+static int ata_lookup_timeout_table(u8 cmd)
+{
+        int i;
+
+        for (i = 0; i < ATA_EH_CMD_TIMEOUT_TABLE_SIZE; i++) {
+                const u8 *cur;
+
+                for (cur = ata_eh_cmd_timeout_table[i].commands; *cur; cur++)
+                        if (*cur == cmd)
+                                return i;
+        }
+
+        return -1;
+}
+
+/**
+ *      ata_internal_cmd_timeout - determine timeout for an internal command
+ *      @dev: target device
+ *      @cmd: internal command to be issued
+ *
+ *      Determine timeout for internal command @cmd for @dev.
+ *
+ *      LOCKING:
+ *      EH context.
+ *
+ *      RETURNS:
+ *      Determined timeout.
+ */
+unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd)
+{
+        struct ata_eh_context *ehc = &dev->link->eh_context;
+        int ent = ata_lookup_timeout_table(cmd);
+        int idx;
+
+        if (ent < 0)
+                return ATA_EH_CMD_DFL_TIMEOUT;
+
+        idx = ehc->cmd_timeout_idx[dev->devno][ent];
+        return ata_eh_cmd_timeout_table[ent].timeouts[idx];
+}
+
+/**
+ *      ata_internal_cmd_timed_out - notification for internal command timeout
+ *      @dev: target device
+ *      @cmd: internal command which timed out
+ *
+ *      Notify EH that internal command @cmd for @dev timed out.  This
+ *      function should be called only for commands whose timeouts are
+ *      determined using ata_internal_cmd_timeout().
+ *
+ *      LOCKING:
+ *      EH context.
+ */
+void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd)
+{
+        struct ata_eh_context *ehc = &dev->link->eh_context;
+        int ent = ata_lookup_timeout_table(cmd);
+        int idx;
+
+        if (ent < 0)
+                return;
+
+        idx = ehc->cmd_timeout_idx[dev->devno][ent];
+        if (ata_eh_cmd_timeout_table[ent].timeouts[idx + 1] != ULONG_MAX)
+                ehc->cmd_timeout_idx[dev->devno][ent]++;
+}
+
 static void ata_ering_record(struct ata_ering *ering, unsigned int eflags,
                              unsigned int err_mask)
 {
@@ -486,6 +604,9 @@ void ata_scsi_error(struct Scsi_Host *host)
                                 if (ata_ncq_enabled(dev))
                                         ehc->saved_ncq_enabled |= 1 << devno;
                         }
+
+                        /* set last reset timestamp to some time in the past */
+                        ehc->last_reset = jiffies - 60 * HZ;
                 }
 
                 ap->pflags |= ATA_PFLAG_EH_IN_PROGRESS;
@@ -641,7 +762,7 @@ void ata_eh_fastdrain_timerfn(unsigned long arg)
                 /* some qcs have finished, give it another chance */
                 ap->fastdrain_cnt = cnt;
                 ap->fastdrain_timer.expires =
-                        jiffies + ATA_EH_FASTDRAIN_INTERVAL;
+                        ata_deadline(jiffies, ATA_EH_FASTDRAIN_INTERVAL);
                 add_timer(&ap->fastdrain_timer);
         }
 
@@ -681,7 +802,8 @@ static void ata_eh_set_pending(struct ata_port *ap, int fastdrain)
 
         /* activate fast drain */
         ap->fastdrain_cnt = cnt;
-        ap->fastdrain_timer.expires = jiffies + ATA_EH_FASTDRAIN_INTERVAL;
+        ap->fastdrain_timer.expires =
+                ata_deadline(jiffies, ATA_EH_FASTDRAIN_INTERVAL);
         add_timer(&ap->fastdrain_timer);
 }
 
@@ -1238,6 +1360,7 @@ static int ata_eh_read_log_10h(struct ata_device *dev,
  *      atapi_eh_request_sense - perform ATAPI REQUEST_SENSE
  *      @dev: device to perform REQUEST_SENSE to
  *      @sense_buf: result sense data buffer (SCSI_SENSE_BUFFERSIZE bytes long)
+ *      @dfl_sense_key: default sense key to use
  *
  *      Perform ATAPI REQUEST_SENSE after the device reported CHECK
  *      SENSE.  This function is EH helper.
@@ -1248,13 +1371,13 @@ static int ata_eh_read_log_10h(struct ata_device *dev,
  *      RETURNS:
  *      0 on success, AC_ERR_* mask on failure
  */
-static unsigned int atapi_eh_request_sense(struct ata_queued_cmd *qc)
+static unsigned int atapi_eh_request_sense(struct ata_device *dev,
+                                           u8 *sense_buf, u8 dfl_sense_key)
 {
-        struct ata_device *dev = qc->dev;
-        unsigned char *sense_buf = qc->scsicmd->sense_buffer;
+        u8 cdb[ATAPI_CDB_LEN] =
+                { REQUEST_SENSE, 0, 0, 0, SCSI_SENSE_BUFFERSIZE, 0 };
         struct ata_port *ap = dev->link->ap;
         struct ata_taskfile tf;
-        u8 cdb[ATAPI_CDB_LEN];
 
         DPRINTK("ATAPI request sense\n");
 
@@ -1265,15 +1388,11 @@ static unsigned int atapi_eh_request_sense(struct ata_queued_cmd *qc)
          * for the case where they are -not- overwritten
          */
         sense_buf[0] = 0x70;
-        sense_buf[2] = qc->result_tf.feature >> 4;
+        sense_buf[2] = dfl_sense_key;
 
         /* some devices time out if garbage left in tf */
         ata_tf_init(dev, &tf);
 
-        memset(cdb, 0, ATAPI_CDB_LEN);
-        cdb[0] = REQUEST_SENSE;
-        cdb[4] = SCSI_SENSE_BUFFERSIZE;
-
         tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
         tf.command = ATA_CMD_PACKET;
 
@@ -1445,7 +1564,9 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc,
 
         case ATA_DEV_ATAPI:
                 if (!(qc->ap->pflags & ATA_PFLAG_FROZEN)) {
-                        tmp = atapi_eh_request_sense(qc);
+                        tmp = atapi_eh_request_sense(qc->dev,
+                                                qc->scsicmd->sense_buffer,
+                                                qc->result_tf.feature >> 4);
                         if (!tmp) {
                                 /* ATA_QCFLAG_SENSE_VALID is used to
                                  * tell atapi_qc_complete() that sense
@@ -2071,13 +2192,12 @@ int ata_eh_reset(struct ata_link *link, int classify,
                  ata_prereset_fn_t prereset, ata_reset_fn_t softreset,
                  ata_reset_fn_t hardreset, ata_postreset_fn_t postreset)
 {
-        const int max_tries = ARRAY_SIZE(ata_eh_reset_timeouts);
         struct ata_port *ap = link->ap;
         struct ata_eh_context *ehc = &link->eh_context;
         unsigned int *classes = ehc->classes;
         unsigned int lflags = link->flags;
         int verbose = !(ehc->i.flags & ATA_EHI_QUIET);
-        int try = 0;
+        int max_tries = 0, try = 0;
         struct ata_device *dev;
         unsigned long deadline, now;
         ata_reset_fn_t reset;
@@ -2088,11 +2208,20 @@ int ata_eh_reset(struct ata_link *link, int classify,
         /*
          * Prepare to reset
          */
+        while (ata_eh_reset_timeouts[max_tries] != ULONG_MAX)
+                max_tries++;
+
+        now = jiffies;
+        deadline = ata_deadline(ehc->last_reset, ATA_EH_RESET_COOL_DOWN);
+        if (time_before(now, deadline))
+                schedule_timeout_uninterruptible(deadline - now);
+
         spin_lock_irqsave(ap->lock, flags);
         ap->pflags |= ATA_PFLAG_RESETTING;
         spin_unlock_irqrestore(ap->lock, flags);
 
         ata_eh_about_to_do(link, NULL, ATA_EH_RESET);
+        ehc->last_reset = jiffies;
 
         ata_link_for_each_dev(dev, link) {
                 /* If we issue an SRST then an ATA drive (not ATAPI)
@@ -2125,7 +2254,8 @@ int ata_eh_reset(struct ata_link *link, int classify,
         }
 
         if (prereset) {
-                rc = prereset(link, jiffies + ATA_EH_PRERESET_TIMEOUT);
+                rc = prereset(link,
+                              ata_deadline(jiffies, ATA_EH_PRERESET_TIMEOUT));
                 if (rc) {
                         if (rc == -ENOENT) {
                                 ata_link_printk(link, KERN_DEBUG,
@@ -2157,10 +2287,11 @@ int ata_eh_reset(struct ata_link *link, int classify,
         /*
          * Perform reset
          */
+        ehc->last_reset = jiffies;
         if (ata_is_host_link(link))
                 ata_eh_freeze_port(ap);
 
-        deadline = jiffies + ata_eh_reset_timeouts[try++];
+        deadline = ata_deadline(jiffies, ata_eh_reset_timeouts[try++]);
 
         if (reset) {
                 if (verbose)
@@ -2277,6 +2408,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
 
         /* reset successful, schedule revalidation */
         ata_eh_done(link, NULL, ATA_EH_RESET);
+        ehc->last_reset = jiffies;
         ehc->i.action |= ATA_EH_REVALIDATE;
 
         rc = 0;
@@ -2303,9 +2435,9 @@ int ata_eh_reset(struct ata_link *link, int classify,
         if (time_before(now, deadline)) {
                 unsigned long delta = deadline - now;
 
-                ata_link_printk(link, KERN_WARNING, "reset failed "
-                                "(errno=%d), retrying in %u secs\n",
-                                rc, (jiffies_to_msecs(delta) + 999) / 1000);
+                ata_link_printk(link, KERN_WARNING,
+                        "reset failed (errno=%d), retrying in %u secs\n",
+                        rc, DIV_ROUND_UP(jiffies_to_msecs(delta), 1000));
 
                 while (delta)
                         delta = schedule_timeout_uninterruptible(delta);
@@ -2583,8 +2715,11 @@ static int ata_eh_handle_dev_fail(struct ata_device *dev, int err)
                         ata_eh_detach_dev(dev);
 
                 /* schedule probe if necessary */
-                if (ata_eh_schedule_probe(dev))
+                if (ata_eh_schedule_probe(dev)) {
                         ehc->tries[dev->devno] = ATA_EH_DEV_TRIES;
+                        memset(ehc->cmd_timeout_idx[dev->devno], 0,
+                               sizeof(ehc->cmd_timeout_idx[dev->devno]));
+                }
 
                 return 1;
         } else {
@@ -2622,7 +2757,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
 {
         struct ata_link *link;
         struct ata_device *dev;
-        int nr_failed_devs, nr_disabled_devs;
+        int nr_failed_devs;
         int rc;
         unsigned long flags;
 
@@ -2665,7 +2800,6 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
  retry:
         rc = 0;
         nr_failed_devs = 0;
-        nr_disabled_devs = 0;
 
         /* if UNLOADING, finish immediately */
         if (ap->pflags & ATA_PFLAG_UNLOADING)
@@ -2732,8 +2866,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
 
 dev_fail:
                 nr_failed_devs++;
-                if (ata_eh_handle_dev_fail(dev, rc))
-                        nr_disabled_devs++;
+                ata_eh_handle_dev_fail(dev, rc);
 
                 if (ap->pflags & ATA_PFLAG_FROZEN) {
                         /* PMP reset requires working host port.
@@ -2745,18 +2878,8 @@ dev_fail:
                 }
         }
 
-        if (nr_failed_devs) {
-                if (nr_failed_devs != nr_disabled_devs) {
-                        ata_port_printk(ap, KERN_WARNING, "failed to recover "
-                                        "some devices, retrying in 5 secs\n");
-                        ssleep(5);
-                } else {
-                        /* no device left to recover, repeat fast */
-                        msleep(500);
-                }
-
+        if (nr_failed_devs)
                 goto retry;
-        }
 
  out:
         if (rc && r_failed_link)
diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c
index 7daf4c0f621..b65db309c18 100644
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c
@@ -727,19 +727,12 @@ static int sata_pmp_eh_recover_pmp(struct ata_port *ap,
                 }
 
                 if (tries) {
-                        int sleep = ehc->i.flags & ATA_EHI_DID_RESET;
-
                         /* consecutive revalidation failures? speed down */
                         if (reval_failed)
                                 sata_down_spd_limit(link);
                         else
                                 reval_failed = 1;
 
-                        ata_dev_printk(dev, KERN_WARNING,
-                                       "retrying reset%s\n",
-                                       sleep ? " in 5 secs" : "");
-                        if (sleep)
-                                ssleep(5);
                         ehc->i.action |= ATA_EH_RESET;
                         goto retry;
                 } else {
@@ -785,7 +778,8 @@ static int sata_pmp_eh_handle_disabled_links(struct ata_port *ap)
                  * SError.N working.
                  */
                 sata_link_hardreset(link, sata_deb_timing_normal,
-                                jiffies + ATA_TMOUT_INTERNAL_QUICK, NULL, NULL);
+                                ata_deadline(jiffies, ATA_TMOUT_INTERNAL_QUICK),
+                                NULL, NULL);
 
                 /* unconditionally clear SError.N */
                 rc = sata_scr_write(link, SCR_ERROR, SERR_PHYRDY_CHG);
@@ -990,10 +984,7 @@ static int sata_pmp_eh_recover(struct ata_port *ap)
                 goto retry;
 
         if (--pmp_tries) {
-                ata_port_printk(ap, KERN_WARNING,
-                                "failed to recover PMP, retrying in 5 secs\n");
                 pmp_ehc->i.action |= ATA_EH_RESET;
-                ssleep(5);
                 goto retry;
         }
 
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 499ccc628d8..f3b4b15a8dc 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -190,6 +190,85 @@ static void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
         scsi_build_sense_buffer(0, cmd->sense_buffer, sk, asc, ascq);
 }
 
+static ssize_t
+ata_scsi_em_message_store(struct device *dev, struct device_attribute *attr,
+                          const char *buf, size_t count)
+{
+        struct Scsi_Host *shost = class_to_shost(dev);
+        struct ata_port *ap = ata_shost_to_port(shost);
+        if (ap->ops->em_store && (ap->flags & ATA_FLAG_EM))
+                return ap->ops->em_store(ap, buf, count);
+        return -EINVAL;
+}
+
+static ssize_t
+ata_scsi_em_message_show(struct device *dev, struct device_attribute *attr,
+                         char *buf)
+{
+        struct Scsi_Host *shost = class_to_shost(dev);
+        struct ata_port *ap = ata_shost_to_port(shost);
+
+        if (ap->ops->em_show && (ap->flags & ATA_FLAG_EM))
+                return ap->ops->em_show(ap, buf);
+        return -EINVAL;
+}
+DEVICE_ATTR(em_message, S_IRUGO | S_IWUGO,
+                ata_scsi_em_message_show, ata_scsi_em_message_store);
+EXPORT_SYMBOL_GPL(dev_attr_em_message);
+
+static ssize_t
+ata_scsi_em_message_type_show(struct device *dev, struct device_attribute *attr,
+                              char *buf)
+{
+        struct Scsi_Host *shost = class_to_shost(dev);
+        struct ata_port *ap = ata_shost_to_port(shost);
+
+        return snprintf(buf, 23, "%d\n", ap->em_message_type);
+}
+DEVICE_ATTR(em_message_type, S_IRUGO,
+                  ata_scsi_em_message_type_show, NULL);
+EXPORT_SYMBOL_GPL(dev_attr_em_message_type);
+
+static ssize_t
+ata_scsi_activity_show(struct device *dev, struct device_attribute *attr,
+                char *buf)
+{
+        struct scsi_device *sdev = to_scsi_device(dev);
+        struct ata_port *ap = ata_shost_to_port(sdev->host);
+        struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);
+
+        if (ap->ops->sw_activity_show && (ap->flags & ATA_FLAG_SW_ACTIVITY))
+                return ap->ops->sw_activity_show(atadev, buf);
+        return -EINVAL;
+}
+
+static ssize_t
+ata_scsi_activity_store(struct device *dev, struct device_attribute *attr,
+        const char *buf, size_t count)
+{
+        struct scsi_device *sdev = to_scsi_device(dev);
+        struct ata_port *ap = ata_shost_to_port(sdev->host);
+        struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);
+        enum sw_activity val;
+        int rc;
+
+        if (ap->ops->sw_activity_store && (ap->flags & ATA_FLAG_SW_ACTIVITY)) {
+                val = simple_strtoul(buf, NULL, 0);
+                switch (val) {
+                case OFF: case BLINK_ON: case BLINK_OFF:
+                        rc = ap->ops->sw_activity_store(atadev, val);
+                        if (!rc)
+                                return count;
+                        else
+                                return rc;
+                }
+        }
+        return -EINVAL;
+}
+DEVICE_ATTR(sw_activity, S_IWUGO | S_IRUGO, ata_scsi_activity_show,
+                        ata_scsi_activity_store);
+EXPORT_SYMBOL_GPL(dev_attr_sw_activity);
+
 static void ata_scsi_invalid_field(struct scsi_cmnd *cmd,
                                    void (*done)(struct scsi_cmnd *))
 {
@@ -1779,7 +1858,9 @@ static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf)
         const u8 pages[] = {
                 0x00,   /* page 0x00, this page */
                 0x80,   /* page 0x80, unit serial no page */
-                0x83    /* page 0x83, device ident page */
+                0x83,   /* page 0x83, device ident page */
+                0x89,   /* page 0x89, ata info page */
+                0xb1,   /* page 0xb1, block device characteristics page */
         };
 
         rbuf[3] = sizeof(pages);        /* number of supported VPD pages */
@@ -1900,6 +1981,19 @@ static unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf)
         return 0;
 }
 
+static unsigned int ata_scsiop_inq_b1(struct ata_scsi_args *args, u8 *rbuf)
+{
+        rbuf[1] = 0xb1;
+        rbuf[3] = 0x3c;
+        if (ata_id_major_version(args->id) > 7) {
+                rbuf[4] = args->id[217] >> 8;
+                rbuf[5] = args->id[217];
+                rbuf[7] = args->id[168] & 0xf;
+        }
+
+        return 0;
+}
+
 /**
  *      ata_scsiop_noop - Command handler that simply returns success.
  *      @args: device IDENTIFY data / SCSI command of interest.
@@ -2921,6 +3015,9 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd,
                 case 0x89:
                         ata_scsi_rbuf_fill(&args, ata_scsiop_inq_89);
                         break;
+                case 0xb1:
+                        ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b1);
+                        break;
                 default:
                         ata_scsi_invalid_field(cmd, done);
                         break;
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index c0908c22548..304fdc6f1dc 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -345,8 +345,8 @@ void ata_sff_dma_pause(struct ata_port *ap)
 /**
  *      ata_sff_busy_sleep - sleep until BSY clears, or timeout
  *      @ap: port containing status register to be polled
- *      @tmout_pat: impatience timeout
- *      @tmout: overall timeout
+ *      @tmout_pat: impatience timeout in msecs
+ *      @tmout: overall timeout in msecs
  *
  *      Sleep until ATA Status register bit BSY clears,
  *      or a timeout occurs.
@@ -365,7 +365,7 @@ int ata_sff_busy_sleep(struct ata_port *ap,
 
         status = ata_sff_busy_wait(ap, ATA_BUSY, 300);
         timer_start = jiffies;
-        timeout = timer_start + tmout_pat;
+        timeout = ata_deadline(timer_start, tmout_pat);
         while (status != 0xff && (status & ATA_BUSY) &&
                time_before(jiffies, timeout)) {
                 msleep(50);
@@ -377,7 +377,7 @@ int ata_sff_busy_sleep(struct ata_port *ap,
                                 "port is slow to respond, please be patient "
                                 "(Status 0x%x)\n", status);
 
-        timeout = timer_start + tmout;
+        timeout = ata_deadline(timer_start, tmout);
         while (status != 0xff && (status & ATA_BUSY) &&
                time_before(jiffies, timeout)) {
                 msleep(50);
@@ -390,7 +390,7 @@ int ata_sff_busy_sleep(struct ata_port *ap,
         if (status & ATA_BUSY) {
                 ata_port_printk(ap, KERN_ERR, "port failed to respond "
                                 "(%lu secs, Status 0x%x)\n",
-                                tmout / HZ, status);
+                                DIV_ROUND_UP(tmout, 1000), status);
                 return -EBUSY;
         }
 
@@ -1888,7 +1888,7 @@ int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask,
         unsigned int dev1 = devmask & (1 << 1);
         int rc, ret = 0;
 
-        msleep(ATA_WAIT_AFTER_RESET_MSECS);
+        msleep(ATA_WAIT_AFTER_RESET);
 
         /* always check readiness of the master device */
         rc = ata_sff_wait_ready(link, deadline);
@@ -2371,7 +2371,8 @@ void ata_bus_reset(struct ata_port *ap)
 
         /* issue bus reset */
         if (ap->flags & ATA_FLAG_SRST) {
-                rc = ata_bus_softreset(ap, devmask, jiffies + 40 * HZ);
+                rc = ata_bus_softreset(ap, devmask,
+                                       ata_deadline(jiffies, 40000));
                 if (rc && rc != -ENODEV)
                         goto err_out;
         }
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 1cf803adbc9..f6f9c28ec7f 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -151,6 +151,8 @@ extern void ata_scsi_dev_rescan(struct work_struct *work);
 extern int ata_bus_probe(struct ata_port *ap);
 
 /* libata-eh.c */
+extern unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
+extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd);
 extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
 extern void ata_scsi_error(struct Scsi_Host *host);
 extern void ata_port_wait_eh(struct ata_port *ap);
diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index 55516103626..d3932901a3b 100644
--- a/drivers/ata/pata_bf54x.c
+++ b/drivers/ata/pata_bf54x.c
@@ -1011,7 +1011,7 @@ static void bfin_bus_post_reset(struct ata_port *ap, unsigned int devmask)
         void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
         unsigned int dev0 = devmask & (1 << 0);
         unsigned int dev1 = devmask & (1 << 1);
-        unsigned long timeout;
+        unsigned long deadline;
 
         /* if device 0 was found in ata_devchk, wait for its
          * BSY bit to clear
@@ -1022,7 +1022,7 @@ static void bfin_bus_post_reset(struct ata_port *ap, unsigned int devmask)
         /* if device 1 was found in ata_devchk, wait for
          * register access, then wait for BSY to clear
          */
-        timeout = jiffies + ATA_TMOUT_BOOT;
+        deadline = ata_deadline(jiffies, ATA_TMOUT_BOOT);
         while (dev1) {
                 u8 nsect, lbal;
 
@@ -1031,7 +1031,7 @@ static void bfin_bus_post_reset(struct ata_port *ap, unsigned int devmask)
                 lbal = read_atapi_register(base, ATA_REG_LBAL);
                 if ((nsect == 1) && (lbal == 1))
                         break;
-                if (time_after(jiffies, timeout)) {
+                if (time_after(jiffies, deadline)) {
                         dev1 = 0;
                         break;
                 }
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index fe7cc8ed4ea..bc037ffce20 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -305,7 +305,7 @@ static unsigned int pdc_data_xfer_vlb(struct ata_device *dev,
                         iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
 
                 if (unlikely(slop)) {
-                        u32 pad;
+                        __le32 pad;
                         if (rw == READ) {
                                 pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
                                 memcpy(buf + buflen - slop, &pad, slop);
@@ -746,14 +746,12 @@ static unsigned int vlb32_data_xfer(struct ata_device *adev, unsigned char *buf,
                         ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
 
                 if (unlikely(slop)) {
-                        u32 pad;
+                        __le32 pad;
                         if (rw == WRITE) {
                                 memcpy(&pad, buf + buflen - slop, slop);
-                                pad = le32_to_cpu(pad);
-                                iowrite32(pad, ap->ioaddr.data_addr);
+                                iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr);
                         } else {
-                                pad = ioread32(ap->ioaddr.data_addr);
-                                pad = cpu_to_le32(pad);
+                                pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
                                 memcpy(buf + buflen - slop, &pad, slop);
                         }
                 }
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c
index 97e5b090d7c..63b7a1c165a 100644
--- a/drivers/ata/pata_qdi.c
+++ b/drivers/ata/pata_qdi.c
@@ -137,7 +137,7 @@ static unsigned int qdi_data_xfer(struct ata_device *dev, unsigned char *buf,
                         iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
 
                 if (unlikely(slop)) {
-                        u32 pad;
+                        __le32 pad;
                         if (rw == READ) {
                                 pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
                                 memcpy(buf + buflen - slop, &pad, slop);
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c
index bbf5aa345e6..16673d16857 100644
--- a/drivers/ata/pata_scc.c
+++ b/drivers/ata/pata_scc.c
@@ -696,7 +696,7 @@ static void scc_bmdma_stop (struct ata_queued_cmd *qc)
 
                 if (reg & INTSTS_BMSINT) {
                         unsigned int classes;
-                        unsigned long deadline = jiffies + ATA_TMOUT_BOOT;
+                        unsigned long deadline = ata_deadline(jiffies, ATA_TMOUT_BOOT);
                         printk(KERN_WARNING "%s: Internal Bus Error\n", DRV_NAME);
                         out_be32(bmid_base + SCC_DMA_INTST, INTSTS_BMSINT);
                         /* TBD: SW reset */
diff --git a/drivers/ata/pata_winbond.c b/drivers/ata/pata_winbond.c
index 474528f8fe3..a7606b044a6 100644
--- a/drivers/ata/pata_winbond.c
+++ b/drivers/ata/pata_winbond.c
@@ -105,7 +105,7 @@ static unsigned int winbond_data_xfer(struct ata_device *dev,
                         iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
 
                 if (unlikely(slop)) {
-                        u32 pad;
+                        __le32 pad;
                         if (rw == READ) {
                                 pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
                                 memcpy(buf + buflen - slop, &pad, slop);
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index 16aa6839aa5..fb13b82aacb 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -253,21 +253,29 @@ static void k2_bmdma_start_mmio(struct ata_queued_cmd *qc)
         /* start host DMA transaction */
         dmactl = readb(mmio + ATA_DMA_CMD);
         writeb(dmactl | ATA_DMA_START, mmio + ATA_DMA_CMD);
-        /* There is a race condition in certain SATA controllers that can
-           be seen when the r/w command is given to the controller before the
-           host DMA is started. On a Read command, the controller would initiate
-           the command to the drive even before it sees the DMA start. When there
-           are very fast drives connected to the controller, or when the data request
-           hits in the drive cache, there is the possibility that the drive returns a part
-           or all of the requested data to the controller before the DMA start is issued.
-           In this case, the controller would become confused as to what to do with the data.
-           In the worst case when all the data is returned back to the controller, the
-           controller could hang. In other cases it could return partial data returning
-           in data corruption. This problem has been seen in PPC systems and can also appear
-           on an system with very fast disks, where the SATA controller is sitting behind a
-           number of bridges, and hence there is significant latency between the r/w command
-           and the start command. */
-        /* issue r/w command if the access is to ATA*/
+        /* This works around possible data corruption.
+
+           On certain SATA controllers that can be seen when the r/w
+           command is given to the controller before the host DMA is
+           started.
+
+           On a Read command, the controller would initiate the
+           command to the drive even before it sees the DMA
+           start. When there are very fast drives connected to the
+           controller, or when the data request hits in the drive
+           cache, there is the possibility that the drive returns a
+           part or all of the requested data to the controller before
+           the DMA start is issued.  In this case, the controller
+           would become confused as to what to do with the data.  In
+           the worst case when all the data is returned back to the
+           controller, the controller could hang. In other cases it
+           could return partial data returning in data
+           corruption. This problem has been seen in PPC systems and
+           can also appear on an system with very fast disks, where
+           the SATA controller is sitting behind a number of bridges,
+           and hence there is significant latency between the r/w
+           command and the start command. */
+        /* issue r/w command if the access is to ATA */
         if (qc->tf.protocol == ATA_PROT_DMA)
                 ap->ops->sff_exec_command(ap, &qc->tf);
 }
diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 1efe162e16d..3f6d9b0a6ab 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -93,47 +93,27 @@ static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \
 #define define_siblings_show_func(name)         \
         define_siblings_show_map(name); define_siblings_show_list(name)
 
-#ifdef  topology_physical_package_id
 define_id_show_func(physical_package_id);
 define_one_ro(physical_package_id);
-#define ref_physical_package_id_attr    &attr_physical_package_id.attr,
-#else
-#define ref_physical_package_id_attr
-#endif
 
-#ifdef topology_core_id
 define_id_show_func(core_id);
 define_one_ro(core_id);
-#define ref_core_id_attr                &attr_core_id.attr,
-#else
-#define ref_core_id_attr
-#endif
 
-#ifdef topology_thread_siblings
 define_siblings_show_func(thread_siblings);
 define_one_ro(thread_siblings);
 define_one_ro(thread_siblings_list);
-#define ref_thread_siblings_attr        \
-                &attr_thread_siblings.attr, &attr_thread_siblings_list.attr,
-#else
-#define ref_thread_siblings_attr
-#endif
 
-#ifdef topology_core_siblings
 define_siblings_show_func(core_siblings);
 define_one_ro(core_siblings);
 define_one_ro(core_siblings_list);
-#define ref_core_siblings_attr          \
-                &attr_core_siblings.attr, &attr_core_siblings_list.attr,
-#else
-#define ref_core_siblings_attr
-#endif
 
 static struct attribute *default_attrs[] = {
-        ref_physical_package_id_attr
-        ref_core_id_attr
-        ref_thread_siblings_attr
-        ref_core_siblings_attr
+        &attr_physical_package_id.attr,
+        &attr_core_id.attr,
+        &attr_thread_siblings.attr,
+        &attr_thread_siblings_list.attr,
+        &attr_core_siblings.attr,
+        &attr_core_siblings_list.attr,
         NULL
 };
 
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 570f3b70dce..5fdfa7c888c 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -712,19 +712,17 @@ static void do_pd_request(struct request_queue * q)
 static int pd_special_command(struct pd_unit *disk,
                       enum action (*func)(struct pd_unit *disk))
 {
-        DECLARE_COMPLETION_ONSTACK(wait);
-        struct request rq;
+        struct request *rq;
         int err = 0;
 
-        blk_rq_init(NULL, &rq);
-        rq.rq_disk = disk->gd;
-        rq.end_io_data = &wait;
-        rq.end_io = blk_end_sync_rq;
-        blk_insert_request(disk->gd->queue, &rq, 0, func);
-        wait_for_completion(&wait);
-        if (rq.errors)
-                err = -EIO;
-        blk_put_request(&rq);
+        rq = blk_get_request(disk->gd->queue, READ, __GFP_WAIT);
+
+        rq->cmd_type = REQ_TYPE_SPECIAL;
+        rq->special = func;
+
+        err = blk_execute_rq(disk->gd->queue, disk->gd, rq, 0);
+
+        blk_put_request(rq);
         return err;
 }
 
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 564daaa6c7d..eaa1a355bb3 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -1249,7 +1249,7 @@ static void ipi_handler(void *null)
 
 void global_cache_flush(void)
 {
-        if (on_each_cpu(ipi_handler, NULL, 1, 1) != 0)
+        if (on_each_cpu(ipi_handler, NULL, 1) != 0)
                 panic(PFX "timed out waiting for the other CPUs!\n");
 }
 EXPORT_SYMBOL(global_cache_flush);
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index dbce1263bdf..8fdfe9c871e 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -215,7 +215,7 @@ static void showacpu(void *dummy)
 
 static void sysrq_showregs_othercpus(struct work_struct *dummy)
 {
-        smp_call_function(showacpu, NULL, 0, 0);
+        smp_call_function(showacpu, NULL, 0);
 }
 
 static DECLARE_WORK(sysrq_showallcpus, sysrq_showregs_othercpus);
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index 7b46faf2231..5ca1d80de18 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -215,3 +215,22 @@ pm_good:
  * but we still need to load before device_initcall
  */
 fs_initcall(init_acpi_pm_clocksource);
+
+/*
+ * Allow an override of the IOPort. Stupid BIOSes do not tell us about
+ * the PMTimer, but we might know where it is.
+ */
+static int __init parse_pmtmr(char *arg)
+{
+        unsigned long base;
+
+        if (strict_strtoul(arg, 16, &base))
+                return -EINVAL;
+
+        printk(KERN_INFO "PMTMR IOPort override: 0x%04x -> 0x%04lx\n",
+               (unsigned int)pmtmr_ioport, base);
+        pmtmr_ioport = base;
+
+        return 1;
+}
+__setup("pmtmr=", parse_pmtmr);
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 23554b676d6..5405769020a 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -340,7 +340,7 @@ static void smp_callback(void *v)
 static int cpuidle_latency_notify(struct notifier_block *b,
                 unsigned long l, void *v)
 {
-        smp_call_function(smp_callback, NULL, 0, 1);
+        smp_call_function(smp_callback, NULL, 1);
         return NOTIFY_OK;
 }
 
diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c
index 5b4c0d9f517..da873d795aa 100644
--- a/drivers/firewire/fw-card.c
+++ b/drivers/firewire/fw-card.c
@@ -16,12 +16,15 @@
  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-#include <linux/module.h>
-#include <linux/errno.h>
+#include <linux/completion.h>
+#include <linux/crc-itu-t.h>
 #include <linux/delay.h>
 #include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/kref.h>
+#include <linux/module.h>
 #include <linux/mutex.h>
-#include <linux/crc-itu-t.h>
+
 #include "fw-transaction.h"
 #include "fw-topology.h"
 #include "fw-device.h"
@@ -396,14 +399,16 @@ fw_card_initialize(struct fw_card *card, const struct fw_card_driver *driver,
 {
         static atomic_t index = ATOMIC_INIT(-1);
 
-        atomic_set(&card->device_count, 0);
         card->index = atomic_inc_return(&index);
         card->driver = driver;
         card->device = device;
         card->current_tlabel = 0;
         card->tlabel_mask = 0;
         card->color = 0;
+        card->broadcast_channel = BROADCAST_CHANNEL_INITIAL;
 
+        kref_init(&card->kref);
+        init_completion(&card->done);
         INIT_LIST_HEAD(&card->transaction_list);
         spin_lock_init(&card->lock);
         setup_timer(&card->flush_timer,
@@ -496,7 +501,6 @@ dummy_enable_phys_dma(struct fw_card *card,
 }
 
 static struct fw_card_driver dummy_driver = {
-        .name            = "dummy",
         .enable          = dummy_enable,
         .update_phy_reg  = dummy_update_phy_reg,
         .set_config_rom  = dummy_set_config_rom,
@@ -507,6 +511,14 @@ static struct fw_card_driver dummy_driver = {
 };
 
 void
+fw_card_release(struct kref *kref)
+{
+        struct fw_card *card = container_of(kref, struct fw_card, kref);
+
+        complete(&card->done);
+}
+
+void
 fw_core_remove_card(struct fw_card *card)
 {
         card->driver->update_phy_reg(card, 4,
@@ -521,12 +533,10 @@ fw_core_remove_card(struct fw_card *card)
         card->driver = &dummy_driver;
 
         fw_destroy_nodes(card);
-        /*
-         * Wait for all device workqueue jobs to finish.  Otherwise the
-         * firewire-core module could be unloaded before the jobs ran.
-         */
-        while (atomic_read(&card->device_count) > 0)
-                msleep(100);
+
+        /* Wait for all users, especially device workqueue jobs, to finish. */
+        fw_card_put(card);
+        wait_for_completion(&card->done);
 
         cancel_delayed_work_sync(&card->work);
         fw_flush_transactions(card);
diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c
index d9c8daf7ae7..0855fb5568e 100644
--- a/drivers/firewire/fw-device.c
+++ b/drivers/firewire/fw-device.c
@@ -168,7 +168,7 @@ static void fw_device_release(struct device *dev)
         fw_node_put(device->node);
         kfree(device->config_rom);
         kfree(device);
-        atomic_dec(&card->device_count);
+        fw_card_put(card);
 }
 
 int fw_device_enable_phys_dma(struct fw_device *device)
@@ -946,8 +946,7 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event)
                  */
                 device_initialize(&device->device);
                 atomic_set(&device->state, FW_DEVICE_INITIALIZING);
-                atomic_inc(&card->device_count);
-                device->card = card;
+                device->card = fw_card_get(card);
                 device->node = fw_node_get(node);
                 device->node_id = node->node_id;
                 device->generation = card->generation;
diff --git a/drivers/firewire/fw-device.h b/drivers/firewire/fw-device.h
index 5f131f5129d..42305bbac72 100644
--- a/drivers/firewire/fw-device.h
+++ b/drivers/firewire/fw-device.h
@@ -62,7 +62,6 @@ struct fw_device {
         bool cmc;
         struct fw_card *card;
         struct device device;
-        struct list_head link;
         struct list_head client_list;
         u32 *config_rom;
         size_t config_rom_length;
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index 0b66306af47..333b12544dd 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -2292,7 +2292,6 @@ ohci_queue_iso(struct fw_iso_context *base,
 }
 
 static const struct fw_card_driver ohci_driver = {
-        .name                   = ohci_driver_name,
         .enable                 = ohci_enable,
         .update_phy_reg         = ohci_update_phy_reg,
         .set_config_rom         = ohci_set_config_rom,
diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c
index 227d2e036cd..53fc5a641e6 100644
--- a/drivers/firewire/fw-sbp2.c
+++ b/drivers/firewire/fw-sbp2.c
@@ -86,6 +86,11 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
  * - delay inquiry
  *   Wait extra SBP2_INQUIRY_DELAY seconds after login before SCSI inquiry.
  *
+ * - power condition
+ *   Set the power condition field in the START STOP UNIT commands sent by
+ *   sd_mod on suspend, resume, and shutdown (if manage_start_stop is on).
+ *   Some disks need this to spin down or to resume properly.
+ *
  * - override internal blacklist
  *   Instead of adding to the built-in blacklist, use only the workarounds
  *   specified in the module load parameter.
@@ -97,6 +102,7 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
 #define SBP2_WORKAROUND_FIX_CAPACITY    0x8
 #define SBP2_WORKAROUND_DELAY_INQUIRY   0x10
 #define SBP2_INQUIRY_DELAY              12
+#define SBP2_WORKAROUND_POWER_CONDITION 0x20
 #define SBP2_WORKAROUND_OVERRIDE        0x100
 
 static int sbp2_param_workarounds;
@@ -107,6 +113,8 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
         ", skip mode page 8 = "   __stringify(SBP2_WORKAROUND_MODE_SENSE_8)
         ", fix capacity = "       __stringify(SBP2_WORKAROUND_FIX_CAPACITY)
         ", delay inquiry = "      __stringify(SBP2_WORKAROUND_DELAY_INQUIRY)
+        ", set power condition in start stop unit = "
+                                  __stringify(SBP2_WORKAROUND_POWER_CONDITION)
         ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
         ", or a combination)");
 
@@ -310,18 +318,25 @@ static const struct {
                 .firmware_revision      = 0x002800,
                 .model                  = 0x001010,
                 .workarounds            = SBP2_WORKAROUND_INQUIRY_36 |
-                                          SBP2_WORKAROUND_MODE_SENSE_8,
+                                          SBP2_WORKAROUND_MODE_SENSE_8 |
+                                          SBP2_WORKAROUND_POWER_CONDITION,
         },
         /* DViCO Momobay FX-3A with TSB42AA9A bridge */ {
                 .firmware_revision      = 0x002800,
                 .model                  = 0x000000,
-                .workarounds            = SBP2_WORKAROUND_DELAY_INQUIRY,
+                .workarounds            = SBP2_WORKAROUND_DELAY_INQUIRY |
+                                          SBP2_WORKAROUND_POWER_CONDITION,
         },
         /* Initio bridges, actually only needed for some older ones */ {
                 .firmware_revision      = 0x000200,
                 .model                  = ~0,
                 .workarounds            = SBP2_WORKAROUND_INQUIRY_36,
         },
+        /* PL-3507 bridge with Prolific firmware */ {
+                .firmware_revision      = 0x012800,
+                .model                  = ~0,
+                .workarounds            = SBP2_WORKAROUND_POWER_CONDITION,
+        },
         /* Symbios bridge */ {
                 .firmware_revision      = 0xa0b800,
                 .model                  = ~0,
@@ -1530,6 +1545,9 @@ static int sbp2_scsi_slave_configure(struct scsi_device *sdev)
 
         sdev->use_10_for_rw = 1;
 
+        if (sbp2_param_exclusive_login)
+                sdev->manage_start_stop = 1;
+
         if (sdev->type == TYPE_ROM)
                 sdev->use_10_for_ms = 1;
 
@@ -1540,6 +1558,9 @@ static int sbp2_scsi_slave_configure(struct scsi_device *sdev)
         if (lu->tgt->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
                 sdev->fix_capacity = 1;
 
+        if (lu->tgt->workarounds & SBP2_WORKAROUND_POWER_CONDITION)
+                sdev->start_stop_pwr_cond = 1;
+
         if (lu->tgt->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
                 blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512);
 
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
index 03ae8a77c47..40db8075227 100644
--- a/drivers/firewire/fw-transaction.c
+++ b/drivers/firewire/fw-transaction.c
@@ -55,6 +55,9 @@
 #define HEADER_GET_DATA_LENGTH(q)       (((q) >> 16) & 0xffff)
 #define HEADER_GET_EXTENDED_TCODE(q)    (((q) >> 0) & 0xffff)
 
+#define HEADER_DESTINATION_IS_BROADCAST(q) \
+        (((q) & HEADER_DESTINATION(0x3f)) == HEADER_DESTINATION(0x3f))
+
 #define PHY_CONFIG_GAP_COUNT(gap_count) (((gap_count) << 16) | (1 << 22))
 #define PHY_CONFIG_ROOT_ID(node_id)     ((((node_id) & 0x3f) << 24) | (1 << 23))
 #define PHY_IDENTIFIER(id)              ((id) << 30)
@@ -624,12 +627,9 @@ allocate_request(struct fw_packet *p)
 void
 fw_send_response(struct fw_card *card, struct fw_request *request, int rcode)
 {
-        /*
-         * Broadcast packets are reported as ACK_COMPLETE, so this
-         * check is sufficient to ensure we don't send response to
-         * broadcast packets or posted writes.
-         */
-        if (request->ack != ACK_PENDING) {
+        /* unified transaction or broadcast transaction: don't respond */
+        if (request->ack != ACK_PENDING ||
+            HEADER_DESTINATION_IS_BROADCAST(request->request_header[0])) {
                 kfree(request);
                 return;
         }
@@ -817,12 +817,13 @@ handle_registers(struct fw_card *card, struct fw_request *request,
         int reg = offset & ~CSR_REGISTER_BASE;
         unsigned long long bus_time;
         __be32 *data = payload;
+        int rcode = RCODE_COMPLETE;
 
         switch (reg) {
         case CSR_CYCLE_TIME:
         case CSR_BUS_TIME:
                 if (!TCODE_IS_READ_REQUEST(tcode) || length != 4) {
-                        fw_send_response(card, request, RCODE_TYPE_ERROR);
+                        rcode = RCODE_TYPE_ERROR;
                         break;
                 }
 
@@ -831,7 +832,17 @@ handle_registers(struct fw_card *card, struct fw_request *request,
                         *data = cpu_to_be32(bus_time);
                 else
                         *data = cpu_to_be32(bus_time >> 25);
-                fw_send_response(card, request, RCODE_COMPLETE);
+                break;
+
+        case CSR_BROADCAST_CHANNEL:
+                if (tcode == TCODE_READ_QUADLET_REQUEST)
+                        *data = cpu_to_be32(card->broadcast_channel);
+                else if (tcode == TCODE_WRITE_QUADLET_REQUEST)
+                        card->broadcast_channel =
+                            (be32_to_cpu(*data) & BROADCAST_CHANNEL_VALID) |
+                            BROADCAST_CHANNEL_INITIAL;
+                else
+                        rcode = RCODE_TYPE_ERROR;
                 break;
 
         case CSR_BUS_MANAGER_ID:
@@ -850,10 +861,13 @@ handle_registers(struct fw_card *card, struct fw_request *request,
 
         case CSR_BUSY_TIMEOUT:
                 /* FIXME: Implement this. */
+
         default:
-                fw_send_response(card, request, RCODE_ADDRESS_ERROR);
+                rcode = RCODE_ADDRESS_ERROR;
                 break;
         }
+
+        fw_send_response(card, request, rcode);
 }
 
 static struct fw_address_handler registers = {
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
index 04d3854f656..2ae1b0d6cb7 100644
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -19,14 +19,15 @@
 #ifndef __fw_transaction_h
 #define __fw_transaction_h
 
+#include <linux/completion.h>
 #include <linux/device.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/fs.h>
 #include <linux/dma-mapping.h>
 #include <linux/firewire-constants.h>
-#include <asm/atomic.h>
+#include <linux/kref.h>
+#include <linux/list.h>
+#include <linux/spinlock_types.h>
+#include <linux/timer.h>
+#include <linux/workqueue.h>
 
 #define TCODE_IS_READ_REQUEST(tcode)    (((tcode) & ~1) == 4)
 #define TCODE_IS_BLOCK_PACKET(tcode)    (((tcode) &  1) != 0)
@@ -80,6 +81,9 @@
 #define CSR_SPEED_MAP                   0x2000
 #define CSR_SPEED_MAP_END               0x3000
 
+#define BROADCAST_CHANNEL_INITIAL       (1 << 31 | 31)
+#define BROADCAST_CHANNEL_VALID         (1 << 30)
+
 #define fw_notify(s, args...) printk(KERN_NOTICE KBUILD_MODNAME ": " s, ## args)
 #define fw_error(s, args...) printk(KERN_ERR KBUILD_MODNAME ": " s, ## args)
 
@@ -216,7 +220,8 @@ extern struct bus_type fw_bus_type;
 struct fw_card {
         const struct fw_card_driver *driver;
         struct device *device;
-        atomic_t device_count;
+        struct kref kref;
+        struct completion done;
 
         int node_id;
         int generation;
@@ -236,6 +241,7 @@ struct fw_card {
          */
         int self_id_count;
         u32 topology_map[252 + 3];
+        u32 broadcast_channel;
 
         spinlock_t lock; /* Take this lock when handling the lists in
                           * this struct. */
@@ -256,6 +262,20 @@ struct fw_card {
         int bm_generation;
 };
 
+static inline struct fw_card *fw_card_get(struct fw_card *card)
+{
+        kref_get(&card->kref);
+
+        return card;
+}
+
+void fw_card_release(struct kref *kref);
+
+static inline void fw_card_put(struct fw_card *card)
+{
+        kref_put(&card->kref, fw_card_release);
+}
+
 /*
  * The iso packet format allows for an immediate header/payload part
  * stored in 'header' immediately after the packet info plus an
@@ -348,8 +368,6 @@ int
 fw_iso_context_stop(struct fw_iso_context *ctx);
 
 struct fw_card_driver {
-        const char *name;
-
         /*
          * Enable the given card with the given initial config rom.
          * This function is expected to activate the card, and either
diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c
index 845081b44f6..0177012845c 100644
--- a/drivers/gpu/drm/drm_memory.c
+++ b/drivers/gpu/drm/drm_memory.c
@@ -167,6 +167,11 @@ void drm_core_ioremap(struct drm_map *map, struct drm_device *dev)
 }
 EXPORT_SYMBOL(drm_core_ioremap);
 
+void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev)
+{
+        map->handle = ioremap_wc(map->offset, map->size);
+}
+EXPORT_SYMBOL(drm_core_ioremap_wc);
 void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev)
 {
         if (!map->handle || !map->size)
diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c
index e53158f0ecb..f0de81a5689 100644
--- a/drivers/gpu/drm/radeon/radeon_cp.c
+++ b/drivers/gpu/drm/radeon/radeon_cp.c
@@ -1154,7 +1154,7 @@ static int radeon_do_init_cp(struct drm_device * dev, drm_radeon_init_t * init)
                         dev_priv->gart_info.mapping.size =
                             dev_priv->gart_info.table_size;
 
-                        drm_core_ioremap(&dev_priv->gart_info.mapping, dev);
+                        drm_core_ioremap_wc(&dev_priv->gart_info.mapping, dev);
                         dev_priv->gart_info.addr =
                             dev_priv->gart_info.mapping.handle;
 
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 35812823787..eb8f72ca02f 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -320,7 +320,7 @@ static int try_address(struct i2c_adapter *i2c_adap,
                        unsigned char addr, int retries)
 {
         struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
-        int i, ret = -1;
+        int i, ret = 0;
 
         for (i = 0; i <= retries; i++) {
                 ret = i2c_outb(i2c_adap, addr);
@@ -508,7 +508,7 @@ static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
                         addr ^= 1;
                 ret = try_address(i2c_adap, addr, retries);
                 if ((ret != 1) && !nak_ok)
-                        return -EREMOTEIO;
+                        return -ENXIO;
         }
 
         return 0;
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index e954a20b97a..d50b329a3c9 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -182,7 +182,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
         }
         if (state != 0xf8) {
                 dev_dbg(&i2c_adap->dev, "bus is not idle. status is %#04x\n", state);
-                return -EIO;
+                return -EAGAIN;
         }
 
         DEB1("{{{ XFER %d messages\n", num);
diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c
index 8907b019167..1e328d19cd6 100644
--- a/drivers/i2c/algos/i2c-algo-pcf.c
+++ b/drivers/i2c/algos/i2c-algo-pcf.c
@@ -78,6 +78,36 @@ static void i2c_stop(struct i2c_algo_pcf_data *adap)
         set_pcf(adap, 1, I2C_PCF_STOP);
 }
 
+static void handle_lab(struct i2c_algo_pcf_data *adap, const int *status)
+{
+        DEB2(printk(KERN_INFO
+                "i2c-algo-pcf.o: lost arbitration (CSR 0x%02x)\n",
+                 *status));
+
+        /* Cleanup from LAB -- reset and enable ESO.
+         * This resets the PCF8584; since we've lost the bus, no
+         * further attempts should be made by callers to clean up
+         * (no i2c_stop() etc.)
+         */
+        set_pcf(adap, 1, I2C_PCF_PIN);
+        set_pcf(adap, 1, I2C_PCF_ESO);
+
+        /* We pause for a time period sufficient for any running
+         * I2C transaction to complete -- the arbitration logic won't
+         * work properly until the next START is seen.
+         * It is assumed the bus driver or client has set a proper value.
+         *
+         * REVISIT: should probably use msleep instead of mdelay if we
+         * know we can sleep.
+         */
+        if (adap->lab_mdelay)
+                mdelay(adap->lab_mdelay);
+
+        DEB2(printk(KERN_INFO
+                "i2c-algo-pcf.o: reset LAB condition (CSR 0x%02x)\n",
+                get_pcf(adap, 1)));
+}
+
 static int wait_for_bb(struct i2c_algo_pcf_data *adap) {
 
         int timeout = DEF_TIMEOUT;
@@ -109,23 +139,7 @@ static int wait_for_pin(struct i2c_algo_pcf_data *adap, int *status) {
                 *status = get_pcf(adap, 1);
         }
         if (*status & I2C_PCF_LAB) {
-                DEB2(printk(KERN_INFO 
-                        "i2c-algo-pcf.o: lost arbitration (CSR 0x%02x)\n",
-                         *status));
-                /* Cleanup from LAB-- reset and enable ESO.
-                 * This resets the PCF8584; since we've lost the bus, no
-                 * further attempts should be made by callers to clean up 
-                 * (no i2c_stop() etc.)
-                 */
-                set_pcf(adap, 1, I2C_PCF_PIN);
-                set_pcf(adap, 1, I2C_PCF_ESO);
-                /* TODO: we should pause for a time period sufficient for any
-                 * running I2C transaction to complete-- the arbitration
-                 * logic won't work properly until the next START is seen.
-                 */
-                DEB2(printk(KERN_INFO 
-                        "i2c-algo-pcf.o: reset LAB condition (CSR 0x%02x)\n", 
-                        get_pcf(adap,1)));
+                handle_lab(adap, status);
                 return(-EINTR);
         }
 #endif
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 48438cc5d0c..6ee997b2817 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -4,6 +4,9 @@
 
 menu "I2C Hardware Bus support"
 
+comment "PC SMBus host controller drivers"
+        depends on PCI
+
 config I2C_ALI1535
         tristate "ALI 1535"
         depends on PCI
@@ -73,6 +76,186 @@ config I2C_AMD8111
           This driver can also be built as a module.  If so, the module
           will be called i2c-amd8111.
 
+config I2C_I801
+        tristate "Intel 82801 (ICH)"
+        depends on PCI
+        help
+          If you say yes to this option, support will be included for the Intel
+          801 family of mainboard I2C interfaces.  Specifically, the following
+          versions of the chipset are supported:
+            82801AA
+            82801AB
+            82801BA
+            82801CA/CAM
+            82801DB
+            82801EB/ER (ICH5/ICH5R)
+            6300ESB
+            ICH6
+            ICH7
+            ESB2
+            ICH8
+            ICH9
+            Tolapai
+            ICH10
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-i801.
+
+config I2C_ISCH
+        tristate "Intel SCH SMBus 1.0"
+        depends on PCI
+        help
+          Say Y here if you want to use SMBus controller on the Intel SCH
+          based systems.
+
+          This driver can also be built as a module. If so, the module
+          will be called i2c-isch.
+
+config I2C_PIIX4
+        tristate "Intel PIIX4 and compatible (ATI/Serverworks/Broadcom/SMSC)"
+        depends on PCI
+        help
+          If you say yes to this option, support will be included for the Intel
+          PIIX4 family of mainboard I2C interfaces.  Specifically, the following
+          versions of the chipset are supported (note that Serverworks is part
+          of Broadcom):
+            Intel PIIX4
+            Intel 440MX
+            ATI IXP200
+            ATI IXP300
+            ATI IXP400
+            ATI SB600
+            ATI SB700
+            ATI SB800
+            Serverworks OSB4
+            Serverworks CSB5
+            Serverworks CSB6
+            Serverworks HT-1000
+            SMSC Victory66
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-piix4.
+
+config I2C_NFORCE2
+        tristate "Nvidia nForce2, nForce3 and nForce4"
+        depends on PCI
+        help
+          If you say yes to this option, support will be included for the Nvidia
+          nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-nforce2.
+
+config I2C_NFORCE2_S4985
+        tristate "SMBus multiplexing on the Tyan S4985"
+        depends on I2C_NFORCE2 && EXPERIMENTAL
+        help
+          Enabling this option will add specific SMBus support for the Tyan
+          S4985 motherboard.  On this 4-CPU board, the SMBus is multiplexed
+          over 4 different channels, where the various memory module EEPROMs
+          live.  Saying yes here will give you access to these in addition
+          to the trunk.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-nforce2-s4985.
+
+config I2C_SIS5595
+        tristate "SiS 5595"
+        depends on PCI
+        help
+          If you say yes to this option, support will be included for the
+          SiS5595 SMBus (a subset of I2C) interface.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-sis5595.
+
+config I2C_SIS630
+        tristate "SiS 630/730"
+        depends on PCI
+        help
+          If you say yes to this option, support will be included for the
+          SiS630 and SiS730 SMBus (a subset of I2C) interface.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-sis630.
+
+config I2C_SIS96X
+        tristate "SiS 96x"
+        depends on PCI
+        help
+          If you say yes to this option, support will be included for the SiS
+          96x SMBus (a subset of I2C) interfaces.  Specifically, the following
+          chipsets are supported:
+            645/961
+            645DX/961
+            645DX/962
+            648/961
+            650/961
+            735
+            745
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-sis96x.
+
+config I2C_VIA
+        tristate "VIA VT82C586B"
+        depends on PCI && EXPERIMENTAL
+        select I2C_ALGOBIT
+        help
+          If you say yes to this option, support will be included for the VIA
+          82C586B I2C interface
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-via.
+
+config I2C_VIAPRO
+        tristate "VIA VT82C596/82C686/82xx and CX700"
+        depends on PCI
+        help
+          If you say yes to this option, support will be included for the VIA
+          VT82C596 and later SMBus interface.  Specifically, the following
+          chipsets are supported:
+            VT82C596A/B
+            VT82C686A/B
+            VT8231
+            VT8233/A
+            VT8235
+            VT8237R/A/S
+            VT8251
+            CX700
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-viapro.
+
+comment "Mac SMBus host controller drivers"
+        depends on PPC_CHRP || PPC_PMAC
+
+config I2C_HYDRA
+        tristate "CHRP Apple Hydra Mac I/O I2C interface"
+        depends on PCI && PPC_CHRP && EXPERIMENTAL
+        select I2C_ALGOBIT
+        help
+          This supports the use of the I2C interface in the Apple Hydra Mac
+          I/O chip on some CHRP machines (e.g. the LongTrail).  Say Y if you
+          have such a machine.
+
+          This support is also available as a module.  If so, the module
+          will be called i2c-hydra.
+
+config I2C_POWERMAC
+        tristate "Powermac I2C interface"
+        depends on PPC_PMAC
+        default y
+        help
+          This exposes the various PowerMac i2c interfaces to the linux i2c
+          layer and to userland. It is used by various drivers on the PowerMac
+          platform, and should generally be enabled.
+
+          This support is also available as a module.  If so, the module
+          will be called i2c-powermac.
+
+comment "I2C system bus drivers (mostly embedded / system-on-chip)"
+
 config I2C_AT91
         tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
         depends on ARCH_AT91 && EXPERIMENTAL && BROKEN
@@ -101,10 +284,9 @@ config I2C_AU1550
 config I2C_BLACKFIN_TWI
         tristate "Blackfin TWI I2C support"
         depends on BLACKFIN
+        depends on !BF561 && !BF531 && !BF532 && !BF533
         help
-          This is the TWI I2C device driver for Blackfin BF522, BF525,
-          BF527, BF534, BF536, BF537 and BF54x. For other Blackfin processors,
-          please don't use this driver.
+          This is the I2C bus driver for Blackfin on-chip TWI interface.
 
           This driver can also be built as a module.  If so, the module
           will be called i2c-bfin-twi.
@@ -117,6 +299,16 @@ config I2C_BLACKFIN_TWI_CLK_KHZ
         help
           The unit of the TWI clock is kHz.
 
+config I2C_CPM
+        tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
+        depends on (CPM1 || CPM2) && OF_I2C
+        help
+          This supports the use of the I2C interface on Freescale
+          processors with CPM1 or CPM2.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-cpm.
+
 config I2C_DAVINCI
         tristate "DaVinci I2C driver"
         depends on ARCH_DAVINCI
@@ -130,17 +322,6 @@ config I2C_DAVINCI
           devices such as DaVinci NIC.
           For details please see http://www.ti.com/davinci
 
-config I2C_ELEKTOR
-        tristate "Elektor ISA card"
-        depends on ISA && BROKEN_ON_SMP
-        select I2C_ALGOPCF
-        help
-          This supports the PCF8584 ISA bus I2C adapter.  Say Y if you own
-          such an adapter.
-
-          This support is also available as a module.  If so, the module
-          will be called i2c-elektor.
-
 config I2C_GPIO
         tristate "GPIO-based bitbanging I2C"
         depends on GENERIC_GPIO
@@ -149,104 +330,6 @@ config I2C_GPIO
           This is a very simple bitbanging I2C driver utilizing the
           arch-neutral GPIO API to control the SCL and SDA lines.
 
-config I2C_HYDRA
-        tristate "CHRP Apple Hydra Mac I/O I2C interface"
-        depends on PCI && PPC_CHRP && EXPERIMENTAL
-        select I2C_ALGOBIT
-        help
-          This supports the use of the I2C interface in the Apple Hydra Mac
-          I/O chip on some CHRP machines (e.g. the LongTrail).  Say Y if you
-          have such a machine.
-
-          This support is also available as a module.  If so, the module
-          will be called i2c-hydra.
-
-config I2C_I801
-        tristate "Intel 82801 (ICH)"
-        depends on PCI
-        help
-          If you say yes to this option, support will be included for the Intel
-          801 family of mainboard I2C interfaces.  Specifically, the following
-          versions of the chipset are supported:
-            82801AA
-            82801AB
-            82801BA
-            82801CA/CAM
-            82801DB
-            82801EB/ER (ICH5/ICH5R)
-            6300ESB
-            ICH6
-            ICH7
-            ESB2
-            ICH8
-            ICH9
-            Tolapai
-            ICH10
-
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-i801.
-
-config I2C_I810
-        tristate "Intel 810/815 (DEPRECATED)"
-        default n
-        depends on PCI
-        select I2C_ALGOBIT
-        help
-          If you say yes to this option, support will be included for the Intel
-          810/815 family of mainboard I2C interfaces.  Specifically, the
-          following versions of the chipset are supported:
-            i810AA
-            i810AB
-            i810E
-            i815
-            i845G
-
-          This driver is deprecated in favor of the i810fb and intelfb drivers.
-
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-i810.
-
-config I2C_PXA
-        tristate "Intel PXA2XX I2C adapter (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && ARCH_PXA
-        help
-          If you have devices in the PXA I2C bus, say yes to this option.
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-pxa.
-
-config I2C_PXA_SLAVE
-        bool "Intel PXA2XX I2C Slave comms support"
-        depends on I2C_PXA
-        help
-          Support I2C slave mode communications on the PXA I2C bus.  This
-          is necessary for systems where the PXA may be a target on the
-          I2C bus.
-
-config I2C_PIIX4
-        tristate "Intel PIIX4 and compatible (ATI/Serverworks/Broadcom/SMSC)"
-        depends on PCI
-        help
-          If you say yes to this option, support will be included for the Intel
-          PIIX4 family of mainboard I2C interfaces.  Specifically, the following
-          versions of the chipset are supported (note that Serverworks is part
-          of Broadcom):
-            Intel PIIX4
-            Intel 440MX
-            ATI IXP200
-            ATI IXP300
-            ATI IXP400
-            ATI SB600
-            ATI SB700
-            ATI SB800
-            Serverworks OSB4
-            Serverworks CSB5
-            Serverworks CSB6
-            Serverworks HT-1000
-            SMSC Victory66
-
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-piix4.
-
 config I2C_IBM_IIC
         tristate "IBM PPC 4xx on-chip I2C interface"
         depends on 4xx
@@ -281,18 +364,6 @@ config I2C_IXP2000
           This driver is deprecated and will be dropped soon. Use i2c-gpio
           instead.
 
-config I2C_POWERMAC
-        tristate "Powermac I2C interface"
-        depends on PPC_PMAC
-        default y
-        help
-          This exposes the various PowerMac i2c interfaces to the linux i2c
-          layer and to userland. It is used by various drivers on the PowerMac
-          platform, and should generally be enabled.
-
-          This support is also available as a module.  If so, the module
-          will be called i2c-powermac.
-
 config I2C_MPC
         tristate "MPC107/824x/85xx/52xx/86xx"
         depends on PPC32
@@ -305,15 +376,15 @@ config I2C_MPC
           This driver can also be built as a module.  If so, the module
           will be called i2c-mpc.
 
-config I2C_NFORCE2
-        tristate "Nvidia nForce2, nForce3 and nForce4"
-        depends on PCI
+config I2C_MV64XXX
+        tristate "Marvell mv64xxx I2C Controller"
+        depends on (MV64X60 || PLAT_ORION) && EXPERIMENTAL
         help
-          If you say yes to this option, support will be included for the Nvidia
-          nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
+          If you say yes to this option, support will be included for the
+          built-in I2C interface on the Marvell 64xxx line of host bridges.
 
           This driver can also be built as a module.  If so, the module
-          will be called i2c-nforce2.
+          will be called i2c-mv64xxx.
 
 config I2C_OCORES
         tristate "OpenCores I2C Controller"
@@ -336,76 +407,37 @@ config I2C_OMAP
           Like OMAP1510/1610/1710/5912 and OMAP242x.
           For details see http://www.ti.com/omap.
 
-config I2C_PARPORT
-        tristate "Parallel port adapter"
-        depends on PARPORT
-        select I2C_ALGOBIT
-        help
-          This supports parallel port I2C adapters such as the ones made by
-          Philips or Velleman, Analog Devices evaluation boards, and more.
-          Basically any adapter using the parallel port as an I2C bus with
-          no extra chipset is supported by this driver, or could be.
-
-          This driver is a replacement for (and was inspired by) an older
-          driver named i2c-philips-par.  The new driver supports more devices,
-          and makes it easier to add support for new devices.
-
-          An adapter type parameter is now mandatory.  Please read the file
-          Documentation/i2c/busses/i2c-parport for details.
-
-          Another driver exists, named i2c-parport-light, which doesn't depend
-          on the parport driver.  This is meant for embedded systems. Don't say
-          Y here if you intend to say Y or M there.
-
-          This support is also available as a module.  If so, the module
-          will be called i2c-parport.
-
-config I2C_PARPORT_LIGHT
-        tristate "Parallel port adapter (light)"
-        select I2C_ALGOBIT
-        help
-          This supports parallel port I2C adapters such as the ones made by
-          Philips or Velleman, Analog Devices evaluation boards, and more.
-          Basically any adapter using the parallel port as an I2C bus with
-          no extra chipset is supported by this driver, or could be.
-
-          This driver is a light version of i2c-parport.  It doesn't depend
-          on the parport driver, and uses direct I/O access instead.  This
-          might be preferred on embedded systems where wasting memory for
-          the clean but heavy parport handling is not an option.  The
-          drawback is a reduced portability and the impossibility to
-          daisy-chain other parallel port devices.
-
-          Don't say Y here if you said Y or M to i2c-parport.  Saying M to
-          both is possible but both modules should not be loaded at the same
-          time.
-
-          This support is also available as a module.  If so, the module
-          will be called i2c-parport-light.
-
 config I2C_PASEMI
         tristate "PA Semi SMBus interface"
         depends on PPC_PASEMI && PCI
         help
           Supports the PA Semi PWRficient on-chip SMBus interfaces.
 
-config I2C_PROSAVAGE
-        tristate "S3/VIA (Pro)Savage (DEPRECATED)"
-        default n
-        depends on PCI
-        select I2C_ALGOBIT
+config I2C_PNX
+        tristate "I2C bus support for Philips PNX targets"
+        depends on ARCH_PNX4008
         help
-          If you say yes to this option, support will be included for the
-          I2C bus and DDC bus of the S3VIA embedded Savage4 and ProSavage8
-          graphics processors.
-          chipsets supported:
-            S3/VIA KM266/VT8375 aka ProSavage8
-            S3/VIA KM133/VT8365 aka Savage4
+          This driver supports the Philips IP3204 I2C IP block master and/or
+          slave controller
 
-          This driver is deprecated in favor of the savagefb driver.
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-pnx.
 
-          This support is also available as a module.  If so, the module
-          will be called i2c-prosavage.
+config I2C_PXA
+        tristate "Intel PXA2XX I2C adapter (EXPERIMENTAL)"
+        depends on EXPERIMENTAL && ARCH_PXA
+        help
+          If you have devices in the PXA I2C bus, say yes to this option.
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-pxa.
+
+config I2C_PXA_SLAVE
+        bool "Intel PXA2XX I2C Slave comms support"
+        depends on I2C_PXA
+        help
+          Support I2C slave mode communications on the PXA I2C bus.  This
+          is necessary for systems where the PXA may be a target on the
+          I2C bus.
 
 config I2C_S3C2410
         tristate "S3C2410 I2C Driver"
@@ -414,25 +446,24 @@ config I2C_S3C2410
           Say Y here to include support for I2C controller in the
           Samsung S3C2410 based System-on-Chip devices.
 
-config I2C_SAVAGE4
-        tristate "S3 Savage 4 (DEPRECATED)"
-        default n
-        depends on PCI
-        select I2C_ALGOBIT
+config I2C_SH7760
+        tristate "Renesas SH7760 I2C Controller"
+        depends on CPU_SUBTYPE_SH7760
         help
-          If you say yes to this option, support will be included for the
-          S3 Savage 4 I2C interface.
-
-          This driver is deprecated in favor of the savagefb driver.
+          This driver supports the 2 I2C interfaces on the Renesas SH7760.
 
           This driver can also be built as a module.  If so, the module
-          will be called i2c-savage4.
+          will be called i2c-sh7760.
 
-config I2C_SIBYTE
-        tristate "SiByte SMBus interface"
-        depends on SIBYTE_SB1xxx_SOC
+config I2C_SH_MOBILE
+        tristate "SuperH Mobile I2C Controller"
+        depends on SUPERH
         help
-          Supports the SiByte SOC on-chip I2C interfaces (2 channels).
+          If you say yes to this option, support will be included for the
+          built-in I2C interface on the Renesas SH-Mobile processor.
+
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-sh_mobile.
 
 config I2C_SIMTEC
         tristate "Simtec Generic I2C interface"
@@ -446,86 +477,65 @@ config I2C_SIMTEC
           This driver can also be built as a module. If so, the module
           will be called i2c-simtec.
 
-config SCx200_I2C
-        tristate "NatSemi SCx200 I2C using GPIO pins (DEPRECATED)"
-        depends on SCx200_GPIO
+config I2C_VERSATILE
+        tristate "ARM Versatile/Realview I2C bus support"
+        depends on ARCH_VERSATILE || ARCH_REALVIEW
         select I2C_ALGOBIT
         help
-          Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
-
-          If you don't know what to do here, say N.
+          Say yes if you want to support the I2C serial bus on ARMs Versatile
+          range of platforms.
 
-          This support is also available as a module.  If so, the module
-          will be called scx200_i2c.
+          This driver can also be built as a module.  If so, the module
+          will be called i2c-versatile.
 
-          This driver is deprecated and will be dropped soon. Use i2c-gpio
-          (or scx200_acb) instead.
+comment "External I2C/SMBus adapter drivers"
 
-config SCx200_I2C_SCL
-        int "GPIO pin used for SCL"
-        depends on SCx200_I2C
-        default "12"
+config I2C_PARPORT
+        tristate "Parallel port adapter"
+        depends on PARPORT
+        select I2C_ALGOBIT
         help
-          Enter the GPIO pin number used for the SCL signal.  This value can
-          also be specified with a module parameter.
+          This supports parallel port I2C adapters such as the ones made by
+          Philips or Velleman, Analog Devices evaluation boards, and more.
+          Basically any adapter using the parallel port as an I2C bus with
+          no extra chipset is supported by this driver, or could be.
 
-config SCx200_I2C_SDA
-        int "GPIO pin used for SDA"
-        depends on SCx200_I2C
-        default "13"
-        help
-          Enter the GPIO pin number used for the SSA signal.  This value can
-          also be specified with a module parameter.
+          This driver is a replacement for (and was inspired by) an older
+          driver named i2c-philips-par.  The new driver supports more devices,
+          and makes it easier to add support for new devices.
 
-config SCx200_ACB
-        tristate "Geode ACCESS.bus support"
-        depends on X86_32 && PCI
-        help
-          Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
-          SC1100 processors and the CS5535 and CS5536 Geode companion devices.
+          An adapter type parameter is now mandatory.  Please read the file
+          Documentation/i2c/busses/i2c-parport for details.
 
-          If you don't know what to do here, say N.
+          Another driver exists, named i2c-parport-light, which doesn't depend
+          on the parport driver.  This is meant for embedded systems. Don't say
+          Y here if you intend to say Y or M there.
 
           This support is also available as a module.  If so, the module
-          will be called scx200_acb.
-
-config I2C_SIS5595
-        tristate "SiS 5595"
-        depends on PCI
-        help
-          If you say yes to this option, support will be included for the
-          SiS5595 SMBus (a subset of I2C) interface.
-
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-sis5595.
+          will be called i2c-parport.
 
-config I2C_SIS630
-        tristate "SiS 630/730"
-        depends on PCI
+config I2C_PARPORT_LIGHT
+        tristate "Parallel port adapter (light)"
+        select I2C_ALGOBIT
         help
-          If you say yes to this option, support will be included for the
-          SiS630 and SiS730 SMBus (a subset of I2C) interface.
+          This supports parallel port I2C adapters such as the ones made by
+          Philips or Velleman, Analog Devices evaluation boards, and more.
+          Basically any adapter using the parallel port as an I2C bus with
+          no extra chipset is supported by this driver, or could be.
 
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-sis630.
+          This driver is a light version of i2c-parport.  It doesn't depend
+          on the parport driver, and uses direct I/O access instead.  This
+          might be preferred on embedded systems where wasting memory for
+          the clean but heavy parport handling is not an option.  The
+          drawback is a reduced portability and the impossibility to
+          daisy-chain other parallel port devices.
 
-config I2C_SIS96X
-        tristate "SiS 96x"
-        depends on PCI
-        help
-          If you say yes to this option, support will be included for the SiS
-          96x SMBus (a subset of I2C) interfaces.  Specifically, the following
-          chipsets are supported:
-            645/961
-            645DX/961
-            645DX/962
-            648/961
-            650/961
-            735
-            745
+          Don't say Y here if you said Y or M to i2c-parport.  Saying M to
+          both is possible but both modules should not be loaded at the same
+          time.
 
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-sis96x.
+          This support is also available as a module.  If so, the module
+          will be called i2c-parport-light.
 
 config I2C_TAOS_EVM
         tristate "TAOS evaluation module"
@@ -543,21 +553,8 @@ config I2C_TAOS_EVM
           This support is also available as a module.  If so, the module
           will be called i2c-taos-evm.
 
-config I2C_STUB
-        tristate "I2C/SMBus Test Stub"
-        depends on EXPERIMENTAL && m
-        default 'n'
-        help
-          This module may be useful to developers of SMBus client drivers,
-          especially for certain kinds of sensor chips.
-
-          If you do build this module, be sure to read the notes and warnings
-          in <file:Documentation/i2c/i2c-stub>.
-
-          If you don't know what to do here, definitely say N.
-
 config I2C_TINY_USB
-        tristate "I2C-Tiny-USB"
+        tristate "Tiny-USB adapter"
         depends on USB
         help
           If you say yes to this option, support will be included for the
@@ -567,16 +564,21 @@ config I2C_TINY_USB
           This driver can also be built as a module.  If so, the module
           will be called i2c-tiny-usb.
 
-config I2C_VERSATILE
-        tristate "ARM Versatile/Realview I2C bus support"
-        depends on ARCH_VERSATILE || ARCH_REALVIEW
+comment "Graphics adapter I2C/DDC channel drivers"
+        depends on PCI
+
+config I2C_VOODOO3
+        tristate "Voodoo 3"
+        depends on PCI
         select I2C_ALGOBIT
         help
-          Say yes if you want to support the I2C serial bus on ARMs Versatile
-          range of platforms.
+          If you say yes to this option, support will be included for the
+          Voodoo 3 I2C interface.
 
           This driver can also be built as a module.  If so, the module
-          will be called i2c-versatile.
+          will be called i2c-voodoo3.
+
+comment "Other I2C/SMBus bus drivers"
 
 config I2C_ACORN
         tristate "Acorn IOC/IOMD I2C bus support"
@@ -588,46 +590,16 @@ config I2C_ACORN
 
           If you don't know, say Y.
 
-config I2C_VIA
-        tristate "VIA 82C586B"
-        depends on PCI && EXPERIMENTAL
-        select I2C_ALGOBIT
-        help
-          If you say yes to this option, support will be included for the VIA
-          82C586B I2C interface
-
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-via.
-
-config I2C_VIAPRO
-        tristate "VIA VT82C596/82C686/82xx and CX700"
-        depends on PCI
-        help
-          If you say yes to this option, support will be included for the VIA
-          VT82C596 and later SMBus interface.  Specifically, the following
-          chipsets are supported:
-            VT82C596A/B
-            VT82C686A/B
-            VT8231
-            VT8233/A
-            VT8235
-            VT8237R/A/S
-            VT8251
-            CX700
-
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-viapro.
-
-config I2C_VOODOO3
-        tristate "Voodoo 3"
-        depends on PCI
-        select I2C_ALGOBIT
+config I2C_ELEKTOR
+        tristate "Elektor ISA card"
+        depends on ISA && BROKEN_ON_SMP
+        select I2C_ALGOPCF
         help
-          If you say yes to this option, support will be included for the
-          Voodoo 3 I2C interface.
+          This supports the PCF8584 ISA bus I2C adapter.  Say Y if you own
+          such an adapter.
 
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-voodoo3.
+          This support is also available as a module.  If so, the module
+          will be called i2c-elektor.
 
 config I2C_PCA_ISA
         tristate "PCA9564 on an ISA bus"
@@ -657,26 +629,6 @@ config I2C_PCA_PLATFORM
           This driver can also be built as a module.  If so, the module
           will be called i2c-pca-platform.
 
-config I2C_MV64XXX
-        tristate "Marvell mv64xxx I2C Controller"
-        depends on (MV64X60 || PLAT_ORION) && EXPERIMENTAL
-        help
-          If you say yes to this option, support will be included for the
-          built-in I2C interface on the Marvell 64xxx line of host bridges.
-
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-mv64xxx.
-
-config I2C_PNX
-        tristate "I2C bus support for Philips PNX targets"
-        depends on ARCH_PNX4008
-        help
-          This driver supports the Philips IP3204 I2C IP block master and/or
-          slave controller
-
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-pnx.
-
 config I2C_PMCMSP
         tristate "PMC MSP I2C TWI Controller"
         depends on PMC_MSP
@@ -686,23 +638,66 @@ config I2C_PMCMSP
           This driver can also be built as module. If so, the module
           will be called i2c-pmcmsp.
 
-config I2C_SH7760
-        tristate "Renesas SH7760 I2C Controller"
-        depends on CPU_SUBTYPE_SH7760
+config I2C_SIBYTE
+        tristate "SiByte SMBus interface"
+        depends on SIBYTE_SB1xxx_SOC
         help
-          This driver supports the 2 I2C interfaces on the Renesas SH7760.
+          Supports the SiByte SOC on-chip I2C interfaces (2 channels).
 
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-sh7760.
+config I2C_STUB
+        tristate "I2C/SMBus Test Stub"
+        depends on EXPERIMENTAL && m
+        default 'n'
+        help
+          This module may be useful to developers of SMBus client drivers,
+          especially for certain kinds of sensor chips.
 
-config I2C_SH_MOBILE
-        tristate "SuperH Mobile I2C Controller"
-        depends on SUPERH
+          If you do build this module, be sure to read the notes and warnings
+          in <file:Documentation/i2c/i2c-stub>.
+
+          If you don't know what to do here, definitely say N.
+
+config SCx200_I2C
+        tristate "NatSemi SCx200 I2C using GPIO pins (DEPRECATED)"
+        depends on SCx200_GPIO
+        select I2C_ALGOBIT
         help
-          If you say yes to this option, support will be included for the
-          built-in I2C interface on the Renesas SH-Mobile processor.
+          Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
 
-          This driver can also be built as a module.  If so, the module
-          will be called i2c-sh_mobile.
+          If you don't know what to do here, say N.
+
+          This support is also available as a module.  If so, the module
+          will be called scx200_i2c.
+
+          This driver is deprecated and will be dropped soon. Use i2c-gpio
+          (or scx200_acb) instead.
+
+config SCx200_I2C_SCL
+        int "GPIO pin used for SCL"
+        depends on SCx200_I2C
+        default "12"
+        help
+          Enter the GPIO pin number used for the SCL signal.  This value can
+          also be specified with a module parameter.
+
+config SCx200_I2C_SDA
+        int "GPIO pin used for SDA"
+        depends on SCx200_I2C
+        default "13"
+        help
+          Enter the GPIO pin number used for the SSA signal.  This value can
+          also be specified with a module parameter.
+
+config SCx200_ACB
+        tristate "Geode ACCESS.bus support"
+        depends on X86_32 && PCI
+        help
+          Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
+          SC1100 processors and the CS5535 and CS5536 Geode companion devices.
+
+          If you don't know what to do here, say N.
+
+          This support is also available as a module.  If so, the module
+          will be called scx200_acb.
 
 endmenu
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index e8c882a5ea6..97dbfa2107f 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -2,57 +2,68 @@
 # Makefile for the i2c bus drivers.
 #
 
+# PC SMBus host controller drivers
 obj-$(CONFIG_I2C_ALI1535)       += i2c-ali1535.o
 obj-$(CONFIG_I2C_ALI1563)       += i2c-ali1563.o
 obj-$(CONFIG_I2C_ALI15X3)       += i2c-ali15x3.o
 obj-$(CONFIG_I2C_AMD756)        += i2c-amd756.o
 obj-$(CONFIG_I2C_AMD756_S4882)  += i2c-amd756-s4882.o
 obj-$(CONFIG_I2C_AMD8111)       += i2c-amd8111.o
+obj-$(CONFIG_I2C_I801)          += i2c-i801.o
+obj-$(CONFIG_I2C_ISCH)          += i2c-isch.o
+obj-$(CONFIG_I2C_NFORCE2)       += i2c-nforce2.o
+obj-$(CONFIG_I2C_NFORCE2_S4985) += i2c-nforce2-s4985.o
+obj-$(CONFIG_I2C_PIIX4)         += i2c-piix4.o
+obj-$(CONFIG_I2C_SIS5595)       += i2c-sis5595.o
+obj-$(CONFIG_I2C_SIS630)        += i2c-sis630.o
+obj-$(CONFIG_I2C_SIS96X)        += i2c-sis96x.o
+obj-$(CONFIG_I2C_VIA)           += i2c-via.o
+obj-$(CONFIG_I2C_VIAPRO)        += i2c-viapro.o
+
+# Mac SMBus host controller drivers
+obj-$(CONFIG_I2C_HYDRA)         += i2c-hydra.o
+obj-$(CONFIG_I2C_POWERMAC)      += i2c-powermac.o
+
+# Embebbed system I2C/SMBus host controller drivers
 obj-$(CONFIG_I2C_AT91)          += i2c-at91.o
 obj-$(CONFIG_I2C_AU1550)        += i2c-au1550.o
 obj-$(CONFIG_I2C_BLACKFIN_TWI)  += i2c-bfin-twi.o
+obj-$(CONFIG_I2C_CPM)           += i2c-cpm.o
 obj-$(CONFIG_I2C_DAVINCI)       += i2c-davinci.o
-obj-$(CONFIG_I2C_ELEKTOR)       += i2c-elektor.o
 obj-$(CONFIG_I2C_GPIO)          += i2c-gpio.o
-obj-$(CONFIG_I2C_HYDRA)         += i2c-hydra.o
-obj-$(CONFIG_I2C_I801)          += i2c-i801.o
-obj-$(CONFIG_I2C_I810)          += i2c-i810.o
 obj-$(CONFIG_I2C_IBM_IIC)       += i2c-ibm_iic.o
 obj-$(CONFIG_I2C_IOP3XX)        += i2c-iop3xx.o
 obj-$(CONFIG_I2C_IXP2000)       += i2c-ixp2000.o
-obj-$(CONFIG_I2C_POWERMAC)      += i2c-powermac.o
 obj-$(CONFIG_I2C_MPC)           += i2c-mpc.o
 obj-$(CONFIG_I2C_MV64XXX)       += i2c-mv64xxx.o
-obj-$(CONFIG_I2C_NFORCE2)       += i2c-nforce2.o
 obj-$(CONFIG_I2C_OCORES)        += i2c-ocores.o
 obj-$(CONFIG_I2C_OMAP)          += i2c-omap.o
-obj-$(CONFIG_I2C_PARPORT)       += i2c-parport.o
-obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o
 obj-$(CONFIG_I2C_PASEMI)        += i2c-pasemi.o
-obj-$(CONFIG_I2C_PCA_ISA)       += i2c-pca-isa.o
-obj-$(CONFIG_I2C_PCA_PLATFORM)  += i2c-pca-platform.o
-obj-$(CONFIG_I2C_PIIX4)         += i2c-piix4.o
-obj-$(CONFIG_I2C_PMCMSP)        += i2c-pmcmsp.o
 obj-$(CONFIG_I2C_PNX)           += i2c-pnx.o
-obj-$(CONFIG_I2C_PROSAVAGE)     += i2c-prosavage.o
 obj-$(CONFIG_I2C_PXA)           += i2c-pxa.o
 obj-$(CONFIG_I2C_S3C2410)       += i2c-s3c2410.o
-obj-$(CONFIG_I2C_SAVAGE4)       += i2c-savage4.o
 obj-$(CONFIG_I2C_SH7760)        += i2c-sh7760.o
 obj-$(CONFIG_I2C_SH_MOBILE)     += i2c-sh_mobile.o
-obj-$(CONFIG_I2C_SIBYTE)        += i2c-sibyte.o
 obj-$(CONFIG_I2C_SIMTEC)        += i2c-simtec.o
-obj-$(CONFIG_I2C_SIS5595)       += i2c-sis5595.o
-obj-$(CONFIG_I2C_SIS630)        += i2c-sis630.o
-obj-$(CONFIG_I2C_SIS96X)        += i2c-sis96x.o
-obj-$(CONFIG_I2C_STUB)          += i2c-stub.o
+obj-$(CONFIG_I2C_VERSATILE)     += i2c-versatile.o
+
+# External I2C/SMBus adapter drivers
+obj-$(CONFIG_I2C_PARPORT)       += i2c-parport.o
+obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o
 obj-$(CONFIG_I2C_TAOS_EVM)      += i2c-taos-evm.o
 obj-$(CONFIG_I2C_TINY_USB)      += i2c-tiny-usb.o
-obj-$(CONFIG_I2C_VERSATILE)     += i2c-versatile.o
-obj-$(CONFIG_I2C_ACORN)         += i2c-acorn.o
-obj-$(CONFIG_I2C_VIA)           += i2c-via.o
-obj-$(CONFIG_I2C_VIAPRO)        += i2c-viapro.o
+
+# Graphics adapter I2C/DDC channel drivers
 obj-$(CONFIG_I2C_VOODOO3)       += i2c-voodoo3.o
+
+# Other I2C/SMBus bus drivers
+obj-$(CONFIG_I2C_ACORN)         += i2c-acorn.o
+obj-$(CONFIG_I2C_ELEKTOR)       += i2c-elektor.o
+obj-$(CONFIG_I2C_PCA_ISA)       += i2c-pca-isa.o
+obj-$(CONFIG_I2C_PCA_PLATFORM)  += i2c-pca-platform.o
+obj-$(CONFIG_I2C_PMCMSP)        += i2c-pmcmsp.o
+obj-$(CONFIG_I2C_SIBYTE)        += i2c-sibyte.o
+obj-$(CONFIG_I2C_STUB)          += i2c-stub.o
 obj-$(CONFIG_SCx200_ACB)        += scx200_acb.o
 obj-$(CONFIG_SCx200_I2C)        += scx200_i2c.o
 
diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c
index f14372ac2fc..9cead9b9458 100644
--- a/drivers/i2c/busses/i2c-ali1535.c
+++ b/drivers/i2c/busses/i2c-ali1535.c
@@ -1,6 +1,4 @@
 /*
-    i2c-ali1535.c - Part of lm_sensors, Linux kernel modules for hardware
-                    monitoring
     Copyright (c) 2000  Frodo Looijaard <frodol@dds.nl>, 
                         Philip Edelbrock <phil@netroedge.com>, 
                         Mark D. Studebaker <mdsxyz123@yahoo.com>,
@@ -61,6 +59,7 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 
@@ -159,6 +158,11 @@ static int ali1535_setup(struct pci_dev *dev)
                 goto exit;
         }
 
+        retval = acpi_check_region(ali1535_smba, ALI1535_SMB_IOSIZE,
+                                   ali1535_driver.name);
+        if (retval)
+                goto exit;
+
         if (!request_region(ali1535_smba, ALI1535_SMB_IOSIZE,
                             ali1535_driver.name)) {
                 dev_err(&dev->dev, "ALI1535_smb region 0x%x already in use!\n",
@@ -259,7 +263,7 @@ static int ali1535_transaction(struct i2c_adapter *adap)
                         dev_err(&adap->dev,
                                 "SMBus reset failed! (0x%02x) - controller or "
                                 "device on bus is probably hung\n", temp);
-                        return -1;
+                        return -EBUSY;
                 }
         } else {
                 /* check and clear done bit */
@@ -281,12 +285,12 @@ static int ali1535_transaction(struct i2c_adapter *adap)
 
         /* If the SMBus is still busy, we give up */
         if (timeout >= MAX_TIMEOUT) {
-                result = -1;
+                result = -ETIMEDOUT;
                 dev_err(&adap->dev, "SMBus Timeout!\n");
         }
 
         if (temp & ALI1535_STS_FAIL) {
-                result = -1;
+                result = -EIO;
                 dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
         }
 
@@ -295,7 +299,7 @@ static int ali1535_transaction(struct i2c_adapter *adap)
          * do a printk.  This means that bus collisions go unreported.
          */
         if (temp & ALI1535_STS_BUSERR) {
-                result = -1;
+                result = -ENXIO;
                 dev_dbg(&adap->dev,
                         "Error: no response or bus collision ADD=%02x\n",
                         inb_p(SMBHSTADD));
@@ -303,13 +307,13 @@ static int ali1535_transaction(struct i2c_adapter *adap)
 
         /* haven't ever seen this */
         if (temp & ALI1535_STS_DEV) {
-                result = -1;
+                result = -EIO;
                 dev_err(&adap->dev, "Error: device error\n");
         }
 
         /* check to see if the "command complete" indication is set */
         if (!(temp & ALI1535_STS_DONE)) {
-                result = -1;
+                result = -ETIMEDOUT;
                 dev_err(&adap->dev, "Error: command never completed\n");
         }
 
@@ -332,7 +336,7 @@ static int ali1535_transaction(struct i2c_adapter *adap)
         return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 ali1535_access(struct i2c_adapter *adap, u16 addr,
                           unsigned short flags, char read_write, u8 command,
                           int size, union i2c_smbus_data *data)
@@ -357,10 +361,6 @@ static s32 ali1535_access(struct i2c_adapter *adap, u16 addr,
         outb_p(0xFF, SMBHSTSTS);
 
         switch (size) {
-        case I2C_SMBUS_PROC_CALL:
-                dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-                result = -1;
-                goto EXIT;
         case I2C_SMBUS_QUICK:
                 outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
                        SMBHSTADD);
@@ -418,13 +418,15 @@ static s32 ali1535_access(struct i2c_adapter *adap, u16 addr,
                                 outb_p(data->block[i], SMBBLKDAT);
                 }
                 break;
+        default:
+                dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+                result = -EOPNOTSUPP;
+                goto EXIT;
         }
 
-        if (ali1535_transaction(adap)) {
-                /* Error in transaction */
-                result = -1;
+        result = ali1535_transaction(adap);
+        if (result)
                 goto EXIT;
-        }
 
         if ((read_write == I2C_SMBUS_WRITE) || (size == ALI1535_QUICK)) {
                 result = 0;
@@ -475,7 +477,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter ali1535_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_ALI1535,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-ali1563.c b/drivers/i2c/busses/i2c-ali1563.c
index 6b68074e518..fc3e5b02642 100644
--- a/drivers/i2c/busses/i2c-ali1563.c
+++ b/drivers/i2c/busses/i2c-ali1563.c
@@ -21,6 +21,7 @@
 #include <linux/i2c.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 
 #define ALI1563_MAX_TIMEOUT     500
 #define ALI1563_SMBBA           0x80
@@ -67,6 +68,7 @@ static int ali1563_transaction(struct i2c_adapter * a, int size)
 {
         u32 data;
         int timeout;
+        int status = -EIO;
 
         dev_dbg(&a->dev, "Transaction (pre): STS=%02x, CNTL1=%02x, "
                 "CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
@@ -103,13 +105,15 @@ static int ali1563_transaction(struct i2c_adapter * a, int size)
                 /* Issue 'kill' to host controller */
                 outb_p(HST_CNTL2_KILL,SMB_HST_CNTL2);
                 data = inb_p(SMB_HST_STS);
+                status = -ETIMEDOUT;
         }
 
         /* device error - no response, ignore the autodetection case */
-        if ((data & HST_STS_DEVERR) && (size != HST_CNTL2_QUICK)) {
-                dev_err(&a->dev, "Device error!\n");
+        if (data & HST_STS_DEVERR) {
+                if (size != HST_CNTL2_QUICK)
+                        dev_err(&a->dev, "Device error!\n");
+                status = -ENXIO;
         }
-
         /* bus collision */
         if (data & HST_STS_BUSERR) {
                 dev_err(&a->dev, "Bus collision!\n");
@@ -122,13 +126,14 @@ static int ali1563_transaction(struct i2c_adapter * a, int size)
                 outb_p(0x0,SMB_HST_CNTL2);
         }
 
-        return -1;
+        return status;
 }
 
 static int ali1563_block_start(struct i2c_adapter * a)
 {
         u32 data;
         int timeout;
+        int status = -EIO;
 
         dev_dbg(&a->dev, "Block (pre): STS=%02x, CNTL1=%02x, "
                 "CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n",
@@ -164,13 +169,20 @@ static int ali1563_block_start(struct i2c_adapter * a)
 
         if (timeout && !(data & HST_STS_BAD))
                 return 0;
+
+        if (timeout == 0)
+                status = -ETIMEDOUT;
+
+        if (data & HST_STS_DEVERR)
+                status = -ENXIO;
+
         dev_err(&a->dev, "SMBus Error: %s%s%s%s%s\n",
-                timeout ? "Timeout " : "",
+                timeout ? "" : "Timeout ",
                 data & HST_STS_FAIL ? "Transaction Failed " : "",
                 data & HST_STS_BUSERR ? "No response or Bus Collision " : "",
                 data & HST_STS_DEVERR ? "Device Error " : "",
                 !(data & HST_STS_DONE) ? "Transaction Never Finished " : "");
-        return -1;
+        return status;
 }
 
 static int ali1563_block(struct i2c_adapter * a, union i2c_smbus_data * data, u8 rw)
@@ -235,10 +247,6 @@ static s32 ali1563_access(struct i2c_adapter * a, u16 addr,
 
         /* Map the size to what the chip understands */
         switch (size) {
-        case I2C_SMBUS_PROC_CALL:
-                dev_err(&a->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-                error = -EINVAL;
-                break;
         case I2C_SMBUS_QUICK:
                 size = HST_CNTL2_QUICK;
                 break;
@@ -254,6 +262,10 @@ static s32 ali1563_access(struct i2c_adapter * a, u16 addr,
         case I2C_SMBUS_BLOCK_DATA:
                 size = HST_CNTL2_BLOCK;
                 break;
+        default:
+                dev_warn(&a->dev, "Unsupported transaction %d\n", size);
+                error = -EOPNOTSUPP;
+                goto Done;
         }
 
         outb_p(((addr & 0x7f) << 1) | (rw & 0x01), SMB_HST_ADD);
@@ -345,6 +357,10 @@ static int __devinit ali1563_setup(struct pci_dev * dev)
                 }
         }
 
+        if (acpi_check_region(ali1563_smba, ALI1563_SMB_IOSIZE,
+                              ali1563_pci_driver.name))
+                goto Err;
+
         if (!request_region(ali1563_smba, ALI1563_SMB_IOSIZE,
                             ali1563_pci_driver.name)) {
                 dev_err(&dev->dev, "Could not allocate I/O space at 0x%04x\n",
@@ -371,7 +387,7 @@ static const struct i2c_algorithm ali1563_algorithm = {
 static struct i2c_adapter ali1563_adapter = {
         .owner  = THIS_MODULE,
         .id     = I2C_HW_SMBUS_ALI1563,
-        .class  = I2C_CLASS_HWMON,
+        .class  = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo   = &ali1563_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c
index 93bf87d7096..234fdde7d40 100644
--- a/drivers/i2c/busses/i2c-ali15x3.c
+++ b/drivers/i2c/busses/i2c-ali15x3.c
@@ -1,6 +1,4 @@
 /*
-    ali15x3.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1999  Frodo Looijaard <frodol@dds.nl> and
     Philip Edelbrock <phil@netroedge.com> and
     Mark D. Studebaker <mdsxyz123@yahoo.com>
@@ -68,6 +66,7 @@
 #include <linux/delay.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* ALI15X3 SMBus address offsets */
@@ -166,6 +165,10 @@ static int ali15x3_setup(struct pci_dev *ALI15X3_dev)
         if(force_addr)
                 ali15x3_smba = force_addr & ~(ALI15X3_SMB_IOSIZE - 1);
 
+        if (acpi_check_region(ali15x3_smba, ALI15X3_SMB_IOSIZE,
+                              ali15x3_driver.name))
+                return -EBUSY;
+
         if (!request_region(ali15x3_smba, ALI15X3_SMB_IOSIZE,
                             ali15x3_driver.name)) {
                 dev_err(&ALI15X3_dev->dev,
@@ -282,7 +285,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
                         dev_err(&adap->dev, "SMBus reset failed! (0x%02x) - "
                                 "controller or device on bus is probably hung\n",
                                 temp);
-                        return -1;
+                        return -EBUSY;
                 }
         } else {
                 /* check and clear done bit */
@@ -304,12 +307,12 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
 
         /* If the SMBus is still busy, we give up */
         if (timeout >= MAX_TIMEOUT) {
-                result = -1;
+                result = -ETIMEDOUT;
                 dev_err(&adap->dev, "SMBus Timeout!\n");
         }
 
         if (temp & ALI15X3_STS_TERM) {
-                result = -1;
+                result = -EIO;
                 dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
         }
 
@@ -320,7 +323,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
           This means that bus collisions go unreported.
         */
         if (temp & ALI15X3_STS_COLL) {
-                result = -1;
+                result = -ENXIO;
                 dev_dbg(&adap->dev,
                         "Error: no response or bus collision ADD=%02x\n",
                         inb_p(SMBHSTADD));
@@ -328,7 +331,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
 
         /* haven't ever seen this */
         if (temp & ALI15X3_STS_DEV) {
-                result = -1;
+                result = -EIO;
                 dev_err(&adap->dev, "Error: device error\n");
         }
         dev_dbg(&adap->dev, "Transaction (post): STS=%02x, CNT=%02x, CMD=%02x, "
@@ -338,7 +341,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap)
         return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr,
                    unsigned short flags, char read_write, u8 command,
                    int size, union i2c_smbus_data * data)
@@ -362,9 +365,6 @@ static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr,
         }
 
         switch (size) {
-        case I2C_SMBUS_PROC_CALL:
-                dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-                return -1;
         case I2C_SMBUS_QUICK:
                 outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
                        SMBHSTADD);
@@ -417,12 +417,16 @@ static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr,
                 }
                 size = ALI15X3_BLOCK_DATA;
                 break;
+        default:
+                dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+                return -EOPNOTSUPP;
         }
 
         outb_p(size, SMBHSTCNT);        /* output command */
 
-        if (ali15x3_transaction(adap))  /* Error in transaction */
-                return -1;
+        temp = ali15x3_transaction(adap);
+        if (temp)
+                return temp;
 
         if ((read_write == I2C_SMBUS_WRITE) || (size == ALI15X3_QUICK))
                 return 0;
@@ -470,7 +474,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter ali15x3_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_ALI15X3,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
index c38a0a11220..2f150e33c74 100644
--- a/drivers/i2c/busses/i2c-amd756-s4882.c
+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
@@ -58,7 +58,7 @@ static s32 amd756_access_virt0(struct i2c_adapter * adap, u16 addr,
         /* We exclude the multiplexed addresses */
         if (addr == 0x4c || (addr & 0xfc) == 0x50 || (addr & 0xfc) == 0x30
          || addr == 0x18)
-                return -1;
+                return -ENXIO;
 
         mutex_lock(&amd756_lock);
 
@@ -86,7 +86,7 @@ static inline s32 amd756_access_channel(struct i2c_adapter * adap, u16 addr,
 
         /* We exclude the non-multiplexed addresses */
         if (addr != 0x4c && (addr & 0xfc) != 0x50 && (addr & 0xfc) != 0x30)
-                return -1;
+                return -ENXIO;
 
         mutex_lock(&amd756_lock);
 
diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c
index 43508d61eb7..1ea39254dac 100644
--- a/drivers/i2c/busses/i2c-amd756.c
+++ b/drivers/i2c/busses/i2c-amd756.c
@@ -1,7 +1,4 @@
 /*
-    amd756.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-
     Copyright (c) 1999-2002 Merlin Hughes <merlin@merlin.org>
 
     Shamelessly ripped from i2c-piix4.c:
@@ -45,6 +42,7 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* AMD756 SMBus address offsets */
@@ -151,17 +149,17 @@ static int amd756_transaction(struct i2c_adapter *adap)
         }
 
         if (temp & GS_PRERR_STS) {
-                result = -1;
+                result = -ENXIO;
                 dev_dbg(&adap->dev, "SMBus Protocol error (no response)!\n");
         }
 
         if (temp & GS_COL_STS) {
-                result = -1;
+                result = -EIO;
                 dev_warn(&adap->dev, "SMBus collision!\n");
         }
 
         if (temp & GS_TO_STS) {
-                result = -1;
+                result = -ETIMEDOUT;
                 dev_dbg(&adap->dev, "SMBus protocol timeout!\n");
         }
 
@@ -189,22 +187,18 @@ static int amd756_transaction(struct i2c_adapter *adap)
         outw_p(inw(SMB_GLOBAL_ENABLE) | GE_ABORT, SMB_GLOBAL_ENABLE);
         msleep(100);
         outw_p(GS_CLEAR_STS, SMB_GLOBAL_STATUS);
-        return -1;
+        return -EIO;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 amd756_access(struct i2c_adapter * adap, u16 addr,
                   unsigned short flags, char read_write,
                   u8 command, int size, union i2c_smbus_data * data)
 {
         int i, len;
+        int status;
 
-        /** TODO: Should I supporte the 10-bit transfers? */
         switch (size) {
-        case I2C_SMBUS_PROC_CALL:
-                dev_dbg(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-                /* TODO: Well... It is supported, I'm just not sure what to do here... */
-                return -1;
         case I2C_SMBUS_QUICK:
                 outw_p(((addr & 0x7f) << 1) | (read_write & 0x01),
                        SMB_HOST_ADDRESS);
@@ -251,13 +245,17 @@ static s32 amd756_access(struct i2c_adapter * adap, u16 addr,
                 }
                 size = AMD756_BLOCK_DATA;
                 break;
+        default:
+                dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+                return -EOPNOTSUPP;
         }
 
         /* How about enabling interrupts... */
         outw_p(size & GE_CYC_TYPE_MASK, SMB_GLOBAL_ENABLE);
 
-        if (amd756_transaction(adap))   /* Error in transaction */
-                return -1;
+        status = amd756_transaction(adap);
+        if (status)
+                return status;
 
         if ((read_write == I2C_SMBUS_WRITE) || (size == AMD756_QUICK))
                 return 0;
@@ -301,7 +299,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 struct i2c_adapter amd756_smbus = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_AMD756,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
@@ -368,6 +366,11 @@ static int __devinit amd756_probe(struct pci_dev *pdev,
                 amd756_ioport += SMB_ADDR_OFFSET;
         }
 
+        error = acpi_check_region(amd756_ioport, SMB_IOSIZE,
+                                  amd756_driver.name);
+        if (error)
+                return error;
+
         if (!request_region(amd756_ioport, SMB_IOSIZE, amd756_driver.name)) {
                 dev_err(&pdev->dev, "SMB region 0x%x already in use!\n",
                         amd756_ioport);
diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c
index 5d1a27ef250..3972208876b 100644
--- a/drivers/i2c/busses/i2c-amd8111.c
+++ b/drivers/i2c/busses/i2c-amd8111.c
@@ -16,6 +16,7 @@
 #include <linux/init.h>
 #include <linux/i2c.h>
 #include <linux/delay.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 MODULE_LICENSE("GPL");
@@ -77,7 +78,7 @@ static unsigned int amd_ec_wait_write(struct amd_smbus *smbus)
         if (!timeout) {
                 dev_warn(&smbus->dev->dev,
                          "Timeout while waiting for IBF to clear\n");
-                return -1;
+                return -ETIMEDOUT;
         }
 
         return 0;
@@ -93,7 +94,7 @@ static unsigned int amd_ec_wait_read(struct amd_smbus *smbus)
         if (!timeout) {
                 dev_warn(&smbus->dev->dev,
                          "Timeout while waiting for OBF to set\n");
-                return -1;
+                return -ETIMEDOUT;
         }
 
         return 0;
@@ -102,16 +103,21 @@ static unsigned int amd_ec_wait_read(struct amd_smbus *smbus)
 static unsigned int amd_ec_read(struct amd_smbus *smbus, unsigned char address,
                 unsigned char *data)
 {
-        if (amd_ec_wait_write(smbus))
-                return -1;
+        int status;
+
+        status = amd_ec_wait_write(smbus);
+        if (status)
+                return status;
         outb(AMD_EC_CMD_RD, smbus->base + AMD_EC_CMD);
 
-        if (amd_ec_wait_write(smbus))
-                return -1;
+        status = amd_ec_wait_write(smbus);
+        if (status)
+                return status;
         outb(address, smbus->base + AMD_EC_DATA);
 
-        if (amd_ec_wait_read(smbus))
-                return -1;
+        status = amd_ec_wait_read(smbus);
+        if (status)
+                return status;
         *data = inb(smbus->base + AMD_EC_DATA);
 
         return 0;
@@ -120,16 +126,21 @@ static unsigned int amd_ec_read(struct amd_smbus *smbus, unsigned char address,
 static unsigned int amd_ec_write(struct amd_smbus *smbus, unsigned char address,
                 unsigned char data)
 {
-        if (amd_ec_wait_write(smbus))
-                return -1;
+        int status;
+
+        status = amd_ec_wait_write(smbus);
+        if (status)
+                return status;
         outb(AMD_EC_CMD_WR, smbus->base + AMD_EC_CMD);
 
-        if (amd_ec_wait_write(smbus))
-                return -1;
+        status = amd_ec_wait_write(smbus);
+        if (status)
+                return status;
         outb(address, smbus->base + AMD_EC_DATA);
 
-        if (amd_ec_wait_write(smbus))
-                return -1;
+        status = amd_ec_wait_write(smbus);
+        if (status)
+                return status;
         outb(data, smbus->base + AMD_EC_DATA);
 
         return 0;
@@ -267,12 +278,17 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
 
                 default:
                         dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
-                        return -1;
+                        return -EOPNOTSUPP;
         }
 
         amd_ec_write(smbus, AMD_SMB_ADDR, addr << 1);
         amd_ec_write(smbus, AMD_SMB_PRTCL, protocol);
 
+        /* FIXME this discards status from ec_read(); so temp[0] will
+         * hold stack garbage ... the rest of this routine will act
+         * nonsensically.  Ignored ec_write() status might explain
+         * some such failures...
+         */
         amd_ec_read(smbus, AMD_SMB_STS, temp + 0);
 
         if (~temp[0] & AMD_SMB_STS_DONE) {
@@ -286,7 +302,7 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
         }
 
         if ((~temp[0] & AMD_SMB_STS_DONE) || (temp[0] & AMD_SMB_STS_STATUS))
-                return -1;
+                return -EIO;
 
         if (read_write == I2C_SMBUS_WRITE)
                 return 0;
@@ -359,6 +375,10 @@ static int __devinit amd8111_probe(struct pci_dev *dev,
         smbus->base = pci_resource_start(dev, 0);
         smbus->size = pci_resource_len(dev, 0);
 
+        error = acpi_check_resource_conflict(&dev->resource[0]);
+        if (error)
+                goto out_kfree;
+
         if (!request_region(smbus->base, smbus->size, amd8111_driver.name)) {
                 error = -EBUSY;
                 goto out_kfree;
@@ -368,7 +388,7 @@ static int __devinit amd8111_probe(struct pci_dev *dev,
         snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
                 "SMBus2 AMD8111 adapter at %04x", smbus->base);
         smbus->adapter.id = I2C_HW_SMBUS_AMD8111;
-        smbus->adapter.class = I2C_CLASS_HWMON;
+        smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         smbus->adapter.algo = &smbus_algorithm;
         smbus->adapter.algo_data = smbus;
 
diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c
index cae9dc89d88..66a04c2c660 100644
--- a/drivers/i2c/busses/i2c-au1550.c
+++ b/drivers/i2c/busses/i2c-au1550.c
@@ -269,9 +269,13 @@ static int
 au1550_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
 {
         struct i2c_au1550_data *adap = i2c_adap->algo_data;
+        volatile psc_smb_t *sp = (volatile psc_smb_t *)adap->psc_base;
         struct i2c_msg *p;
         int i, err = 0;
 
+        sp->psc_ctrl = PSC_CTRL_ENABLE;
+        au_sync();
+
         for (i = 0; !err && i < num; i++) {
                 p = &msgs[i];
                 err = do_address(adap, p->addr, p->flags & I2C_M_RD,
@@ -288,6 +292,10 @@ au1550_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
         */
         if (err == 0)
                 err = num;
+
+        sp->psc_ctrl = PSC_CTRL_SUSPEND;
+        au_sync();
+
         return err;
 }
 
@@ -302,6 +310,61 @@ static const struct i2c_algorithm au1550_algo = {
         .functionality  = au1550_func,
 };
 
+static void i2c_au1550_setup(struct i2c_au1550_data *priv)
+{
+        volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
+        u32 stat;
+
+        sp->psc_ctrl = PSC_CTRL_DISABLE;
+        au_sync();
+        sp->psc_sel = PSC_SEL_PS_SMBUSMODE;
+        sp->psc_smbcfg = 0;
+        au_sync();
+        sp->psc_ctrl = PSC_CTRL_ENABLE;
+        au_sync();
+        do {
+                stat = sp->psc_smbstat;
+                au_sync();
+        } while ((stat & PSC_SMBSTAT_SR) == 0);
+
+        sp->psc_smbcfg = (PSC_SMBCFG_RT_FIFO8 | PSC_SMBCFG_TT_FIFO8 |
+                                PSC_SMBCFG_DD_DISABLE);
+
+        /* Divide by 8 to get a 6.25 MHz clock.  The later protocol
+         * timings are based on this clock.
+         */
+        sp->psc_smbcfg |= PSC_SMBCFG_SET_DIV(PSC_SMBCFG_DIV8);
+        sp->psc_smbmsk = PSC_SMBMSK_ALLMASK;
+        au_sync();
+
+        /* Set the protocol timer values.  See Table 71 in the
+         * Au1550 Data Book for standard timing values.
+         */
+        sp->psc_smbtmr = PSC_SMBTMR_SET_TH(0) | PSC_SMBTMR_SET_PS(15) | \
+                PSC_SMBTMR_SET_PU(15) | PSC_SMBTMR_SET_SH(15) | \
+                PSC_SMBTMR_SET_SU(15) | PSC_SMBTMR_SET_CL(15) | \
+                PSC_SMBTMR_SET_CH(15);
+        au_sync();
+
+        sp->psc_smbcfg |= PSC_SMBCFG_DE_ENABLE;
+        do {
+                stat = sp->psc_smbstat;
+                au_sync();
+        } while ((stat & PSC_SMBSTAT_SR) == 0);
+
+        sp->psc_ctrl = PSC_CTRL_SUSPEND;
+        au_sync();
+}
+
+static void i2c_au1550_disable(struct i2c_au1550_data *priv)
+{
+        volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
+
+        sp->psc_smbcfg = 0;
+        sp->psc_ctrl = PSC_CTRL_DISABLE;
+        au_sync();
+}
+
 /*
  * registering functions to load algorithms at runtime
  * Prior to calling us, the 50MHz clock frequency and routing
@@ -311,9 +374,7 @@ static int __devinit
 i2c_au1550_probe(struct platform_device *pdev)
 {
         struct i2c_au1550_data *priv;
-        volatile psc_smb_t *sp;
         struct resource *r;
-        u32 stat;
         int ret;
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -348,43 +409,7 @@ i2c_au1550_probe(struct platform_device *pdev)
 
         /* Now, set up the PSC for SMBus PIO mode.
         */
-        sp = (volatile psc_smb_t *)priv->psc_base;
-        sp->psc_ctrl = PSC_CTRL_DISABLE;
-        au_sync();
-        sp->psc_sel = PSC_SEL_PS_SMBUSMODE;
-        sp->psc_smbcfg = 0;
-        au_sync();
-        sp->psc_ctrl = PSC_CTRL_ENABLE;
-        au_sync();
-        do {
-                stat = sp->psc_smbstat;
-                au_sync();
-        } while ((stat & PSC_SMBSTAT_SR) == 0);
-
-        sp->psc_smbcfg = (PSC_SMBCFG_RT_FIFO8 | PSC_SMBCFG_TT_FIFO8 |
-                                PSC_SMBCFG_DD_DISABLE);
-
-        /* Divide by 8 to get a 6.25 MHz clock.  The later protocol
-         * timings are based on this clock.
-         */
-        sp->psc_smbcfg |= PSC_SMBCFG_SET_DIV(PSC_SMBCFG_DIV8);
-        sp->psc_smbmsk = PSC_SMBMSK_ALLMASK;
-        au_sync();
-
-        /* Set the protocol timer values.  See Table 71 in the
-         * Au1550 Data Book for standard timing values.
-         */
-        sp->psc_smbtmr = PSC_SMBTMR_SET_TH(0) | PSC_SMBTMR_SET_PS(15) | \
-                PSC_SMBTMR_SET_PU(15) | PSC_SMBTMR_SET_SH(15) | \
-                PSC_SMBTMR_SET_SU(15) | PSC_SMBTMR_SET_CL(15) | \
-                PSC_SMBTMR_SET_CH(15);
-        au_sync();
-
-        sp->psc_smbcfg |= PSC_SMBCFG_DE_ENABLE;
-        do {
-                stat = sp->psc_smbstat;
-                au_sync();
-        } while ((stat & PSC_SMBSTAT_DR) == 0);
+        i2c_au1550_setup(priv);
 
         ret = i2c_add_numbered_adapter(&priv->adap);
         if (ret == 0) {
@@ -392,10 +417,7 @@ i2c_au1550_probe(struct platform_device *pdev)
                 return 0;
         }
 
-        /* disable the PSC */
-        sp->psc_smbcfg = 0;
-        sp->psc_ctrl = PSC_CTRL_DISABLE;
-        au_sync();
+        i2c_au1550_disable(priv);
 
         release_resource(priv->ioarea);
         kfree(priv->ioarea);
@@ -409,27 +431,24 @@ static int __devexit
 i2c_au1550_remove(struct platform_device *pdev)
 {
         struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
-        volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
 
         platform_set_drvdata(pdev, NULL);
         i2c_del_adapter(&priv->adap);
-        sp->psc_smbcfg = 0;
-        sp->psc_ctrl = PSC_CTRL_DISABLE;
-        au_sync();
+        i2c_au1550_disable(priv);
         release_resource(priv->ioarea);
         kfree(priv->ioarea);
         kfree(priv);
         return 0;
 }
 
+#ifdef CONFIG_PM
 static int
 i2c_au1550_suspend(struct platform_device *pdev, pm_message_t state)
 {
         struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
-        volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
 
-        sp->psc_ctrl = PSC_CTRL_SUSPEND;
-        au_sync();
+        i2c_au1550_disable(priv);
+
         return 0;
 }
 
@@ -437,14 +456,15 @@ static int
 i2c_au1550_resume(struct platform_device *pdev)
 {
         struct i2c_au1550_data *priv = platform_get_drvdata(pdev);
-        volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base;
 
-        sp->psc_ctrl = PSC_CTRL_ENABLE;
-        au_sync();
-        while (!(sp->psc_smbstat & PSC_SMBSTAT_SR))
-                au_sync();
+        i2c_au1550_setup(priv);
+
         return 0;
 }
+#else
+#define i2c_au1550_suspend      NULL
+#define i2c_au1550_resume       NULL
+#endif
 
 static struct platform_driver au1xpsc_smbus_driver = {
         .driver = {
diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
new file mode 100644
index 00000000000..8164de1f4d7
--- /dev/null
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -0,0 +1,745 @@
+/*
+ * Freescale CPM1/CPM2 I2C interface.
+ * Copyright (c) 1999 Dan Malek (dmalek@jlc.net).
+ *
+ * moved into proper i2c interface;
+ * Brad Parker (brad@heeltoe.com)
+ *
+ * Parts from dbox2_i2c.c (cvs.tuxbox.org)
+ * (C) 2000-2001 Felix Domke (tmbinc@gmx.net), Gillem (htoa@gmx.net)
+ *
+ * (C) 2007 Montavista Software, Inc.
+ * Vitaly Bordug <vitb@kernel.crashing.org>
+ *
+ * Converted to of_platform_device. Renamed to i2c-cpm.c.
+ * (C) 2007,2008 Jochen Friedrich <jochen@scram.de>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/stddef.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_i2c.h>
+#include <sysdev/fsl_soc.h>
+#include <asm/cpm.h>
+
+/* Try to define this if you have an older CPU (earlier than rev D4) */
+/* However, better use a GPIO based bitbang driver in this case :/   */
+#undef  I2C_CHIP_ERRATA
+
+#define CPM_MAX_READ    513
+#define CPM_MAXBD       4
+
+#define I2C_EB                  (0x10) /* Big endian mode */
+#define I2C_EB_CPM2             (0x30) /* Big endian mode, memory snoop */
+
+#define DPRAM_BASE              ((u8 __iomem __force *)cpm_muram_addr(0))
+
+/* I2C parameter RAM. */
+struct i2c_ram {
+        ushort  rbase;          /* Rx Buffer descriptor base address */
+        ushort  tbase;          /* Tx Buffer descriptor base address */
+        u_char  rfcr;           /* Rx function code */
+        u_char  tfcr;           /* Tx function code */
+        ushort  mrblr;          /* Max receive buffer length */
+        uint    rstate;         /* Internal */
+        uint    rdp;            /* Internal */
+        ushort  rbptr;          /* Rx Buffer descriptor pointer */
+        ushort  rbc;            /* Internal */
+        uint    rxtmp;          /* Internal */
+        uint    tstate;         /* Internal */
+        uint    tdp;            /* Internal */
+        ushort  tbptr;          /* Tx Buffer descriptor pointer */
+        ushort  tbc;            /* Internal */
+        uint    txtmp;          /* Internal */
+        char    res1[4];        /* Reserved */
+        ushort  rpbase;         /* Relocation pointer */
+        char    res2[2];        /* Reserved */
+};
+
+#define I2COM_START     0x80
+#define I2COM_MASTER    0x01
+#define I2CER_TXE       0x10
+#define I2CER_BUSY      0x04
+#define I2CER_TXB       0x02
+#define I2CER_RXB       0x01
+#define I2MOD_EN        0x01
+
+/* I2C Registers */
+struct i2c_reg {
+        u8      i2mod;
+        u8      res1[3];
+        u8      i2add;
+        u8      res2[3];
+        u8      i2brg;
+        u8      res3[3];
+        u8      i2com;
+        u8      res4[3];
+        u8      i2cer;
+        u8      res5[3];
+        u8      i2cmr;
+};
+
+struct cpm_i2c {
+        char *base;
+        struct of_device *ofdev;
+        struct i2c_adapter adap;
+        uint dp_addr;
+        int version; /* CPM1=1, CPM2=2 */
+        int irq;
+        int cp_command;
+        int freq;
+        struct i2c_reg __iomem *i2c_reg;
+        struct i2c_ram __iomem *i2c_ram;
+        u16 i2c_addr;
+        wait_queue_head_t i2c_wait;
+        cbd_t __iomem *tbase;
+        cbd_t __iomem *rbase;
+        u_char *txbuf[CPM_MAXBD];
+        u_char *rxbuf[CPM_MAXBD];
+        u32 txdma[CPM_MAXBD];
+        u32 rxdma[CPM_MAXBD];
+};
+
+static irqreturn_t cpm_i2c_interrupt(int irq, void *dev_id)
+{
+        struct cpm_i2c *cpm;
+        struct i2c_reg __iomem *i2c_reg;
+        struct i2c_adapter *adap = dev_id;
+        int i;
+
+        cpm = i2c_get_adapdata(dev_id);
+        i2c_reg = cpm->i2c_reg;
+
+        /* Clear interrupt. */
+        i = in_8(&i2c_reg->i2cer);
+        out_8(&i2c_reg->i2cer, i);
+
+        dev_dbg(&adap->dev, "Interrupt: %x\n", i);
+
+        wake_up_interruptible(&cpm->i2c_wait);
+
+        return i ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static void cpm_reset_i2c_params(struct cpm_i2c *cpm)
+{
+        struct i2c_ram __iomem *i2c_ram = cpm->i2c_ram;
+
+        /* Set up the I2C parameters in the parameter ram. */
+        out_be16(&i2c_ram->tbase, (u8 __iomem *)cpm->tbase - DPRAM_BASE);
+        out_be16(&i2c_ram->rbase, (u8 __iomem *)cpm->rbase - DPRAM_BASE);
+
+        if (cpm->version == 1) {
+                out_8(&i2c_ram->tfcr, I2C_EB);
+                out_8(&i2c_ram->rfcr, I2C_EB);
+        } else {
+                out_8(&i2c_ram->tfcr, I2C_EB_CPM2);
+                out_8(&i2c_ram->rfcr, I2C_EB_CPM2);
+        }
+
+        out_be16(&i2c_ram->mrblr, CPM_MAX_READ);
+
+        out_be32(&i2c_ram->rstate, 0);
+        out_be32(&i2c_ram->rdp, 0);
+        out_be16(&i2c_ram->rbptr, 0);
+        out_be16(&i2c_ram->rbc, 0);
+        out_be32(&i2c_ram->rxtmp, 0);
+        out_be32(&i2c_ram->tstate, 0);
+        out_be32(&i2c_ram->tdp, 0);
+        out_be16(&i2c_ram->tbptr, 0);
+        out_be16(&i2c_ram->tbc, 0);
+        out_be32(&i2c_ram->txtmp, 0);
+}
+
+static void cpm_i2c_force_close(struct i2c_adapter *adap)
+{
+        struct cpm_i2c *cpm = i2c_get_adapdata(adap);
+        struct i2c_reg __iomem *i2c_reg = cpm->i2c_reg;
+
+        dev_dbg(&adap->dev, "cpm_i2c_force_close()\n");
+
+        cpm_command(cpm->cp_command, CPM_CR_CLOSE_RX_BD);
+
+        out_8(&i2c_reg->i2cmr, 0x00);   /* Disable all interrupts */
+        out_8(&i2c_reg->i2cer, 0xff);
+}
+
+static void cpm_i2c_parse_message(struct i2c_adapter *adap,
+        struct i2c_msg *pmsg, int num, int tx, int rx)
+{
+        cbd_t __iomem *tbdf;
+        cbd_t __iomem *rbdf;
+        u_char addr;
+        u_char *tb;
+        u_char *rb;
+        struct cpm_i2c *cpm = i2c_get_adapdata(adap);
+
+        tbdf = cpm->tbase + tx;
+        rbdf = cpm->rbase + rx;
+
+        addr = pmsg->addr << 1;
+        if (pmsg->flags & I2C_M_RD)
+                addr |= 1;
+
+        tb = cpm->txbuf[tx];
+        rb = cpm->rxbuf[rx];
+
+        /* Align read buffer */
+        rb = (u_char *) (((ulong) rb + 1) & ~1);
+
+        tb[0] = addr;           /* Device address byte w/rw flag */
+
+        out_be16(&tbdf->cbd_datlen, pmsg->len + 1);
+        out_be16(&tbdf->cbd_sc, 0);
+
+        if (!(pmsg->flags & I2C_M_NOSTART))
+                setbits16(&tbdf->cbd_sc, BD_I2C_START);
+
+        if (tx + 1 == num)
+                setbits16(&tbdf->cbd_sc, BD_SC_LAST | BD_SC_WRAP);
+
+        if (pmsg->flags & I2C_M_RD) {
+                /*
+                 * To read, we need an empty buffer of the proper length.
+                 * All that is used is the first byte for address, the remainder
+                 * is just used for timing (and doesn't really have to exist).
+                 */
+
+                dev_dbg(&adap->dev, "cpm_i2c_read(abyte=0x%x)\n", addr);
+
+                out_be16(&rbdf->cbd_datlen, 0);
+                out_be16(&rbdf->cbd_sc, BD_SC_EMPTY | BD_SC_INTRPT);
+
+                if (rx + 1 == CPM_MAXBD)
+                        setbits16(&rbdf->cbd_sc, BD_SC_WRAP);
+
+                eieio();
+                setbits16(&tbdf->cbd_sc, BD_SC_READY);
+        } else {
+                dev_dbg(&adap->dev, "cpm_i2c_write(abyte=0x%x)\n", addr);
+
+                memcpy(tb+1, pmsg->buf, pmsg->len);
+
+                eieio();
+                setbits16(&tbdf->cbd_sc, BD_SC_READY | BD_SC_INTRPT);
+        }
+}
+
+static int cpm_i2c_check_message(struct i2c_adapter *adap,
+        struct i2c_msg *pmsg, int tx, int rx)
+{
+        cbd_t __iomem *tbdf;
+        cbd_t __iomem *rbdf;
+        u_char *tb;
+        u_char *rb;
+        struct cpm_i2c *cpm = i2c_get_adapdata(adap);
+
+        tbdf = cpm->tbase + tx;
+        rbdf = cpm->rbase + rx;
+
+        tb = cpm->txbuf[tx];
+        rb = cpm->rxbuf[rx];
+
+        /* Align read buffer */
+        rb = (u_char *) (((uint) rb + 1) & ~1);
+
+        eieio();
+        if (pmsg->flags & I2C_M_RD) {
+                dev_dbg(&adap->dev, "tx sc 0x%04x, rx sc 0x%04x\n",
+                        in_be16(&tbdf->cbd_sc), in_be16(&rbdf->cbd_sc));
+
+                if (in_be16(&tbdf->cbd_sc) & BD_SC_NAK) {
+                        dev_dbg(&adap->dev, "I2C read; No ack\n");
+                        return -ENXIO;
+                }
+                if (in_be16(&rbdf->cbd_sc) & BD_SC_EMPTY) {
+                        dev_err(&adap->dev,
+                                "I2C read; complete but rbuf empty\n");
+                        return -EREMOTEIO;
+                }
+                if (in_be16(&rbdf->cbd_sc) & BD_SC_OV) {
+                        dev_err(&adap->dev, "I2C read; Overrun\n");
+                        return -EREMOTEIO;
+                }
+                memcpy(pmsg->buf, rb, pmsg->len);
+        } else {
+                dev_dbg(&adap->dev, "tx sc %d 0x%04x\n", tx,
+                        in_be16(&tbdf->cbd_sc));
+
+                if (in_be16(&tbdf->cbd_sc) & BD_SC_NAK) {
+                        dev_dbg(&adap->dev, "I2C write; No ack\n");
+                        return -ENXIO;
+                }
+                if (in_be16(&tbdf->cbd_sc) & BD_SC_UN) {
+                        dev_err(&adap->dev, "I2C write; Underrun\n");
+                        return -EIO;
+                }
+                if (in_be16(&tbdf->cbd_sc) & BD_SC_CL) {
+                        dev_err(&adap->dev, "I2C write; Collision\n");
+                        return -EIO;
+                }
+        }
+        return 0;
+}
+
+static int cpm_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
+{
+        struct cpm_i2c *cpm = i2c_get_adapdata(adap);
+        struct i2c_reg __iomem *i2c_reg = cpm->i2c_reg;
+        struct i2c_ram __iomem *i2c_ram = cpm->i2c_ram;
+        struct i2c_msg *pmsg;
+        int ret, i;
+        int tptr;
+        int rptr;
+        cbd_t __iomem *tbdf;
+        cbd_t __iomem *rbdf;
+
+        if (num > CPM_MAXBD)
+                return -EINVAL;
+
+        /* Check if we have any oversized READ requests */
+        for (i = 0; i < num; i++) {
+                pmsg = &msgs[i];
+                if (pmsg->len >= CPM_MAX_READ)
+                        return -EINVAL;
+        }
+
+        /* Reset to use first buffer */
+        out_be16(&i2c_ram->rbptr, in_be16(&i2c_ram->rbase));
+        out_be16(&i2c_ram->tbptr, in_be16(&i2c_ram->tbase));
+
+        tbdf = cpm->tbase;
+        rbdf = cpm->rbase;
+
+        tptr = 0;
+        rptr = 0;
+
+        while (tptr < num) {
+                pmsg = &msgs[tptr];
+                dev_dbg(&adap->dev, "R: %d T: %d\n", rptr, tptr);
+
+                cpm_i2c_parse_message(adap, pmsg, num, tptr, rptr);
+                if (pmsg->flags & I2C_M_RD)
+                        rptr++;
+                tptr++;
+        }
+        /* Start transfer now */
+        /* Enable RX/TX/Error interupts */
+        out_8(&i2c_reg->i2cmr, I2CER_TXE | I2CER_TXB | I2CER_RXB);
+        out_8(&i2c_reg->i2cer, 0xff);   /* Clear interrupt status */
+        /* Chip bug, set enable here */
+        setbits8(&i2c_reg->i2mod, I2MOD_EN);    /* Enable */
+        /* Begin transmission */
+        setbits8(&i2c_reg->i2com, I2COM_START);
+
+        tptr = 0;
+        rptr = 0;
+
+        while (tptr < num) {
+                /* Check for outstanding messages */
+                dev_dbg(&adap->dev, "test ready.\n");
+                pmsg = &msgs[tptr];
+                if (pmsg->flags & I2C_M_RD)
+                        ret = wait_event_interruptible_timeout(cpm->i2c_wait,
+                                !(in_be16(&rbdf[rptr].cbd_sc) & BD_SC_EMPTY),
+                                1 * HZ);
+                else
+                        ret = wait_event_interruptible_timeout(cpm->i2c_wait,
+                                !(in_be16(&tbdf[tptr].cbd_sc) & BD_SC_READY),
+                                1 * HZ);
+                if (ret == 0) {
+                        ret = -EREMOTEIO;
+                        dev_err(&adap->dev, "I2C transfer: timeout\n");
+                        goto out_err;
+                }
+                if (ret > 0) {
+                        dev_dbg(&adap->dev, "ready.\n");
+                        ret = cpm_i2c_check_message(adap, pmsg, tptr, rptr);
+                        tptr++;
+                        if (pmsg->flags & I2C_M_RD)
+                                rptr++;
+                        if (ret)
+                                goto out_err;
+                }
+        }
+#ifdef I2C_CHIP_ERRATA
+        /*
+         * Chip errata, clear enable. This is not needed on rev D4 CPUs.
+         * Disabling I2C too early may cause too short stop condition
+         */
+        udelay(4);
+        clrbits8(&i2c_reg->i2mod, I2MOD_EN);
+#endif
+        return (num);
+
+out_err:
+        cpm_i2c_force_close(adap);
+#ifdef I2C_CHIP_ERRATA
+        /*
+         * Chip errata, clear enable. This is not needed on rev D4 CPUs.
+         */
+        clrbits8(&i2c_reg->i2mod, I2MOD_EN);
+#endif
+        return ret;
+}
+
+static u32 cpm_i2c_func(struct i2c_adapter *adap)
+{
+        return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
+}
+
+/* -----exported algorithm data: -------------------------------------  */
+
+static const struct i2c_algorithm cpm_i2c_algo = {
+        .master_xfer = cpm_i2c_xfer,
+        .functionality = cpm_i2c_func,
+};
+
+static const struct i2c_adapter cpm_ops = {
+        .owner          = THIS_MODULE,
+        .name           = "i2c-cpm",
+        .algo           = &cpm_i2c_algo,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
+};
+
+static int __devinit cpm_i2c_setup(struct cpm_i2c *cpm)
+{
+        struct of_device *ofdev = cpm->ofdev;
+        const u32 *data;
+        int len, ret, i;
+        void __iomem *i2c_base;
+        cbd_t __iomem *tbdf;
+        cbd_t __iomem *rbdf;
+        unsigned char brg;
+
+        dev_dbg(&cpm->ofdev->dev, "cpm_i2c_setup()\n");
+
+        init_waitqueue_head(&cpm->i2c_wait);
+
+        cpm->irq = of_irq_to_resource(ofdev->node, 0, NULL);
+        if (cpm->irq == NO_IRQ)
+                return -EINVAL;
+
+        /* Install interrupt handler. */
+        ret = request_irq(cpm->irq, cpm_i2c_interrupt, 0, "cpm_i2c",
+                          &cpm->adap);
+        if (ret)
+                return ret;
+
+        /* I2C parameter RAM */
+        i2c_base = of_iomap(ofdev->node, 1);
+        if (i2c_base == NULL) {
+                ret = -EINVAL;
+                goto out_irq;
+        }
+
+        if (of_device_is_compatible(ofdev->node, "fsl,cpm1-i2c")) {
+
+                /* Check for and use a microcode relocation patch. */
+                cpm->i2c_ram = i2c_base;
+                cpm->i2c_addr = in_be16(&cpm->i2c_ram->rpbase);
+
+                /*
+                 * Maybe should use cpm_muram_alloc instead of hardcoding
+                 * this in micropatch.c
+                 */
+                if (cpm->i2c_addr) {
+                        cpm->i2c_ram = cpm_muram_addr(cpm->i2c_addr);
+                        iounmap(i2c_base);
+                }
+
+                cpm->version = 1;
+
+        } else if (of_device_is_compatible(ofdev->node, "fsl,cpm2-i2c")) {
+                cpm->i2c_addr = cpm_muram_alloc(sizeof(struct i2c_ram), 64);
+                cpm->i2c_ram = cpm_muram_addr(cpm->i2c_addr);
+                out_be16(i2c_base, cpm->i2c_addr);
+                iounmap(i2c_base);
+
+                cpm->version = 2;
+
+        } else {
+                iounmap(i2c_base);
+                ret = -EINVAL;
+                goto out_irq;
+        }
+
+        /* I2C control/status registers */
+        cpm->i2c_reg = of_iomap(ofdev->node, 0);
+        if (cpm->i2c_reg == NULL) {
+                ret = -EINVAL;
+                goto out_ram;
+        }
+
+        data = of_get_property(ofdev->node, "fsl,cpm-command", &len);
+        if (!data || len != 4) {
+                ret = -EINVAL;
+                goto out_reg;
+        }
+        cpm->cp_command = *data;
+
+        data = of_get_property(ofdev->node, "linux,i2c-class", &len);
+        if (data && len == 4)
+                cpm->adap.class = *data;
+
+        data = of_get_property(ofdev->node, "clock-frequency", &len);
+        if (data && len == 4)
+                cpm->freq = *data;
+        else
+                cpm->freq = 60000; /* use 60kHz i2c clock by default */
+
+        /*
+         * Allocate space for CPM_MAXBD transmit and receive buffer
+         * descriptors in the DP ram.
+         */
+        cpm->dp_addr = cpm_muram_alloc(sizeof(cbd_t) * 2 * CPM_MAXBD, 8);
+        if (!cpm->dp_addr) {
+                ret = -ENOMEM;
+                goto out_reg;
+        }
+
+        cpm->tbase = cpm_muram_addr(cpm->dp_addr);
+        cpm->rbase = cpm_muram_addr(cpm->dp_addr + sizeof(cbd_t) * CPM_MAXBD);
+
+        /* Allocate TX and RX buffers */
+
+        tbdf = cpm->tbase;
+        rbdf = cpm->rbase;
+
+        for (i = 0; i < CPM_MAXBD; i++) {
+                cpm->rxbuf[i] = dma_alloc_coherent(
+                        NULL, CPM_MAX_READ + 1, &cpm->rxdma[i], GFP_KERNEL);
+                if (!cpm->rxbuf[i]) {
+                        ret = -ENOMEM;
+                        goto out_muram;
+                }
+                out_be32(&rbdf[i].cbd_bufaddr, ((cpm->rxdma[i] + 1) & ~1));
+
+                cpm->txbuf[i] = (unsigned char *)dma_alloc_coherent(
+                        NULL, CPM_MAX_READ + 1, &cpm->txdma[i], GFP_KERNEL);
+                if (!cpm->txbuf[i]) {
+                        ret = -ENOMEM;
+                        goto out_muram;
+                }
+                out_be32(&tbdf[i].cbd_bufaddr, cpm->txdma[i]);
+        }
+
+        /* Initialize Tx/Rx parameters. */
+
+        cpm_reset_i2c_params(cpm);
+
+        dev_dbg(&cpm->ofdev->dev, "i2c_ram 0x%p, i2c_addr 0x%04x, freq %d\n",
+                cpm->i2c_ram, cpm->i2c_addr, cpm->freq);
+        dev_dbg(&cpm->ofdev->dev, "tbase 0x%04x, rbase 0x%04x\n",
+                (u8 __iomem *)cpm->tbase - DPRAM_BASE,
+                (u8 __iomem *)cpm->rbase - DPRAM_BASE);
+
+        cpm_command(cpm->cp_command, CPM_CR_INIT_TRX);
+
+        /*
+         * Select an invalid address. Just make sure we don't use loopback mode
+         */
+        out_8(&cpm->i2c_reg->i2add, 0x7f << 1);
+
+        /*
+         * PDIV is set to 00 in i2mod, so brgclk/32 is used as input to the
+         * i2c baud rate generator. This is divided by 2 x (DIV + 3) to get
+         * the actual i2c bus frequency.
+         */
+        brg = get_brgfreq() / (32 * 2 * cpm->freq) - 3;
+        out_8(&cpm->i2c_reg->i2brg, brg);
+
+        out_8(&cpm->i2c_reg->i2mod, 0x00);
+        out_8(&cpm->i2c_reg->i2com, I2COM_MASTER);      /* Master mode */
+
+        /* Disable interrupts. */
+        out_8(&cpm->i2c_reg->i2cmr, 0);
+        out_8(&cpm->i2c_reg->i2cer, 0xff);
+
+        return 0;
+
+out_muram:
+        for (i = 0; i < CPM_MAXBD; i++) {
+                if (cpm->rxbuf[i])
+                        dma_free_coherent(NULL, CPM_MAX_READ + 1,
+                                cpm->rxbuf[i], cpm->rxdma[i]);
+                if (cpm->txbuf[i])
+                        dma_free_coherent(NULL, CPM_MAX_READ + 1,
+                                cpm->txbuf[i], cpm->txdma[i]);
+        }
+        cpm_muram_free(cpm->dp_addr);
+out_reg:
+        iounmap(cpm->i2c_reg);
+out_ram:
+        if ((cpm->version == 1) && (!cpm->i2c_addr))
+                iounmap(cpm->i2c_ram);
+        if (cpm->version == 2)
+                cpm_muram_free(cpm->i2c_addr);
+out_irq:
+        free_irq(cpm->irq, &cpm->adap);
+        return ret;
+}
+
+static void cpm_i2c_shutdown(struct cpm_i2c *cpm)
+{
+        int i;
+
+        /* Shut down I2C. */
+        clrbits8(&cpm->i2c_reg->i2mod, I2MOD_EN);
+
+        /* Disable interrupts */
+        out_8(&cpm->i2c_reg->i2cmr, 0);
+        out_8(&cpm->i2c_reg->i2cer, 0xff);
+
+        free_irq(cpm->irq, &cpm->adap);
+
+        /* Free all memory */
+        for (i = 0; i < CPM_MAXBD; i++) {
+                dma_free_coherent(NULL, CPM_MAX_READ + 1,
+                        cpm->rxbuf[i], cpm->rxdma[i]);
+                dma_free_coherent(NULL, CPM_MAX_READ + 1,
+                        cpm->txbuf[i], cpm->txdma[i]);
+        }
+
+        cpm_muram_free(cpm->dp_addr);
+        iounmap(cpm->i2c_reg);
+
+        if ((cpm->version == 1) && (!cpm->i2c_addr))
+                iounmap(cpm->i2c_ram);
+        if (cpm->version == 2)
+                cpm_muram_free(cpm->i2c_addr);
+}
+
+static int __devinit cpm_i2c_probe(struct of_device *ofdev,
+                         const struct of_device_id *match)
+{
+        int result, len;
+        struct cpm_i2c *cpm;
+        const u32 *data;
+
+        cpm = kzalloc(sizeof(struct cpm_i2c), GFP_KERNEL);
+        if (!cpm)
+                return -ENOMEM;
+
+        cpm->ofdev = ofdev;
+
+        dev_set_drvdata(&ofdev->dev, cpm);
+
+        cpm->adap = cpm_ops;
+        i2c_set_adapdata(&cpm->adap, cpm);
+        cpm->adap.dev.parent = &ofdev->dev;
+
+        result = cpm_i2c_setup(cpm);
+        if (result) {
+                dev_err(&ofdev->dev, "Unable to init hardware\n");
+                goto out_free;
+        }
+
+        /* register new adapter to i2c module... */
+
+        data = of_get_property(ofdev->node, "linux,i2c-index", &len);
+        if (data && len == 4) {
+                cpm->adap.nr = *data;
+                result = i2c_add_numbered_adapter(&cpm->adap);
+        } else
+                result = i2c_add_adapter(&cpm->adap);
+
+        if (result < 0) {
+                dev_err(&ofdev->dev, "Unable to register with I2C\n");
+                goto out_shut;
+        }
+
+        dev_dbg(&ofdev->dev, "hw routines for %s registered.\n",
+                cpm->adap.name);
+
+        /*
+         * register OF I2C devices
+         */
+        of_register_i2c_devices(&cpm->adap, ofdev->node);
+
+        return 0;
+out_shut:
+        cpm_i2c_shutdown(cpm);
+out_free:
+        dev_set_drvdata(&ofdev->dev, NULL);
+        kfree(cpm);
+
+        return result;
+}
+
+static int __devexit cpm_i2c_remove(struct of_device *ofdev)
+{
+        struct cpm_i2c *cpm = dev_get_drvdata(&ofdev->dev);
+
+        i2c_del_adapter(&cpm->adap);
+
+        cpm_i2c_shutdown(cpm);
+
+        dev_set_drvdata(&ofdev->dev, NULL);
+        kfree(cpm);
+
+        return 0;
+}
+
+static const struct of_device_id cpm_i2c_match[] = {
+        {
+                .compatible = "fsl,cpm1-i2c",
+        },
+        {
+                .compatible = "fsl,cpm2-i2c",
+        },
+        {},
+};
+
+MODULE_DEVICE_TABLE(of, cpm_i2c_match);
+
+static struct of_platform_driver cpm_i2c_driver = {
+        .match_table    = cpm_i2c_match,
+        .probe          = cpm_i2c_probe,
+        .remove         = __devexit_p(cpm_i2c_remove),
+        .driver         = {
+                .name   = "fsl-i2c-cpm",
+                .owner  = THIS_MODULE,
+        }
+};
+
+static int __init cpm_i2c_init(void)
+{
+        return of_register_platform_driver(&cpm_i2c_driver);
+}
+
+static void __exit cpm_i2c_exit(void)
+{
+        of_unregister_platform_driver(&cpm_i2c_driver);
+}
+
+module_init(cpm_i2c_init);
+module_exit(cpm_i2c_exit);
+
+MODULE_AUTHOR("Jochen Friedrich <jochen@scram.de>");
+MODULE_DESCRIPTION("I2C-Bus adapter routines for CPM boards");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 7ecbfc429b1..af3846eda98 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -85,6 +85,7 @@
 #define DAVINCI_I2C_MDR_MST     (1 << 10)
 #define DAVINCI_I2C_MDR_TRX     (1 << 9)
 #define DAVINCI_I2C_MDR_XA      (1 << 8)
+#define DAVINCI_I2C_MDR_RM      (1 << 7)
 #define DAVINCI_I2C_MDR_IRS     (1 << 5)
 
 #define DAVINCI_I2C_IMR_AAS     (1 << 6)
@@ -112,6 +113,7 @@ struct davinci_i2c_dev {
         u8                      *buf;
         size_t                  buf_len;
         int                     irq;
+        u8                      terminate;
         struct i2c_adapter      adapter;
 };
 
@@ -142,6 +144,7 @@ static int i2c_davinci_init(struct davinci_i2c_dev *dev)
         struct davinci_i2c_platform_data *pdata = dev->dev->platform_data;
         u16 psc;
         u32 clk;
+        u32 d;
         u32 clkh;
         u32 clkl;
         u32 input_clock = clk_get_rate(dev->clk);
@@ -171,23 +174,29 @@ static int i2c_davinci_init(struct davinci_i2c_dev *dev)
          *       if PSC > 1 , d = 5
          */
 
-        psc = 26; /* To get 1MHz clock */
+        /* get minimum of 7 MHz clock, but max of 12 MHz */
+        psc = (input_clock / 7000000) - 1;
+        if ((input_clock / (psc + 1)) > 12000000)
+                psc++;  /* better to run under spec than over */
+        d = (psc >= 2) ? 5 : 7 - psc;
 
-        clk = ((input_clock / (psc + 1)) / (pdata->bus_freq * 1000)) - 10;
-        clkh = (50 * clk) / 100;
+        clk = ((input_clock / (psc + 1)) / (pdata->bus_freq * 1000)) - (d << 1);
+        clkh = clk >> 1;
         clkl = clk - clkh;
 
         davinci_i2c_write_reg(dev, DAVINCI_I2C_PSC_REG, psc);
         davinci_i2c_write_reg(dev, DAVINCI_I2C_CLKH_REG, clkh);
         davinci_i2c_write_reg(dev, DAVINCI_I2C_CLKL_REG, clkl);
 
-        dev_dbg(dev->dev, "CLK  = %d\n", clk);
+        dev_dbg(dev->dev, "input_clock = %d, CLK = %d\n", input_clock, clk);
         dev_dbg(dev->dev, "PSC  = %d\n",
                 davinci_i2c_read_reg(dev, DAVINCI_I2C_PSC_REG));
         dev_dbg(dev->dev, "CLKL = %d\n",
                 davinci_i2c_read_reg(dev, DAVINCI_I2C_CLKL_REG));
         dev_dbg(dev->dev, "CLKH = %d\n",
                 davinci_i2c_read_reg(dev, DAVINCI_I2C_CLKH_REG));
+        dev_dbg(dev->dev, "bus_freq = %dkHz, bus_delay = %d\n",
+                pdata->bus_freq, pdata->bus_delay);
 
         /* Take the I2C module out of reset: */
         w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG);
@@ -233,7 +242,6 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
         struct davinci_i2c_dev *dev = i2c_get_adapdata(adap);
         struct davinci_i2c_platform_data *pdata = dev->dev->platform_data;
         u32 flag;
-        u32 stat;
         u16 w;
         int r;
 
@@ -254,12 +262,9 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
 
         davinci_i2c_write_reg(dev, DAVINCI_I2C_CNT_REG, dev->buf_len);
 
-        init_completion(&dev->cmd_complete);
+        INIT_COMPLETION(dev->cmd_complete);
         dev->cmd_err = 0;
 
-        /* Clear any pending interrupts by reading the IVR */
-        stat = davinci_i2c_read_reg(dev, DAVINCI_I2C_IVR_REG);
-
         /* Take I2C out of reset, configure it as master and set the
          * start bit */
         flag = DAVINCI_I2C_MDR_IRS | DAVINCI_I2C_MDR_MST | DAVINCI_I2C_MDR_STT;
@@ -280,20 +285,34 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
                 MOD_REG_BIT(w, DAVINCI_I2C_IMR_XRDY, 1);
         davinci_i2c_write_reg(dev, DAVINCI_I2C_IMR_REG, w);
 
+        dev->terminate = 0;
         /* write the data into mode register */
         davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag);
 
         r = wait_for_completion_interruptible_timeout(&dev->cmd_complete,
                                                       DAVINCI_I2C_TIMEOUT);
-        dev->buf_len = 0;
-        if (r < 0)
-                return r;
-
         if (r == 0) {
                 dev_err(dev->dev, "controller timed out\n");
                 i2c_davinci_init(dev);
+                dev->buf_len = 0;
                 return -ETIMEDOUT;
         }
+        if (dev->buf_len) {
+                /* This should be 0 if all bytes were transferred
+                 * or dev->cmd_err denotes an error.
+                 * A signal may have aborted the transfer.
+                 */
+                if (r >= 0) {
+                        dev_err(dev->dev, "abnormal termination buf_len=%i\n",
+                                dev->buf_len);
+                        r = -EREMOTEIO;
+                }
+                dev->terminate = 1;
+                wmb();
+                dev->buf_len = 0;
+        }
+        if (r < 0)
+                return r;
 
         /* no error */
         if (likely(!dev->cmd_err))
@@ -338,12 +357,11 @@ i2c_davinci_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 
         for (i = 0; i < num; i++) {
                 ret = i2c_davinci_xfer_msg(adap, &msgs[i], (i == (num - 1)));
+                dev_dbg(dev->dev, "%s [%d/%d] ret: %d\n", __func__, i + 1, num,
+                        ret);
                 if (ret < 0)
                         return ret;
         }
-
-        dev_dbg(dev->dev, "%s:%d ret: %d\n", __func__, __LINE__, ret);
-
         return num;
 }
 
@@ -352,6 +370,27 @@ static u32 i2c_davinci_func(struct i2c_adapter *adap)
         return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
 }
 
+static void terminate_read(struct davinci_i2c_dev *dev)
+{
+        u16 w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG);
+        w |= DAVINCI_I2C_MDR_NACK;
+        davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w);
+
+        /* Throw away data */
+        davinci_i2c_read_reg(dev, DAVINCI_I2C_DRR_REG);
+        if (!dev->terminate)
+                dev_err(dev->dev, "RDR IRQ while no data requested\n");
+}
+static void terminate_write(struct davinci_i2c_dev *dev)
+{
+        u16 w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG);
+        w |= DAVINCI_I2C_MDR_RM | DAVINCI_I2C_MDR_STP;
+        davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w);
+
+        if (!dev->terminate)
+                dev_err(dev->dev, "TDR IRQ while no data to send\n");
+}
+
 /*
  * Interrupt service routine. This gets called whenever an I2C interrupt
  * occurs.
@@ -372,12 +411,15 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id)
 
                 switch (stat) {
                 case DAVINCI_I2C_IVR_AL:
+                        /* Arbitration lost, must retry */
                         dev->cmd_err |= DAVINCI_I2C_STR_AL;
+                        dev->buf_len = 0;
                         complete(&dev->cmd_complete);
                         break;
 
                 case DAVINCI_I2C_IVR_NACK:
                         dev->cmd_err |= DAVINCI_I2C_STR_NACK;
+                        dev->buf_len = 0;
                         complete(&dev->cmd_complete);
                         break;
 
@@ -399,9 +441,10 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id)
                                 davinci_i2c_write_reg(dev,
                                         DAVINCI_I2C_STR_REG,
                                         DAVINCI_I2C_IMR_RRDY);
-                        } else
-                                dev_err(dev->dev, "RDR IRQ while no "
-                                        "data requested\n");
+                        } else {
+                                /* signal can terminate transfer */
+                                terminate_read(dev);
+                        }
                         break;
 
                 case DAVINCI_I2C_IVR_XRDY:
@@ -418,9 +461,10 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id)
                                 davinci_i2c_write_reg(dev,
                                                       DAVINCI_I2C_IMR_REG,
                                                       w);
-                        } else
-                                dev_err(dev->dev, "TDR IRQ while no data to "
-                                        "send\n");
+                        } else {
+                                /* signal can terminate transfer */
+                                terminate_write(dev);
+                        }
                         break;
 
                 case DAVINCI_I2C_IVR_SCD:
@@ -475,6 +519,7 @@ static int davinci_i2c_probe(struct platform_device *pdev)
                 goto err_release_region;
         }
 
+        init_completion(&dev->cmd_complete);
         dev->dev = get_device(&pdev->dev);
         dev->irq = irq->start;
         platform_set_drvdata(pdev, dev);
diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c
index b7a9977b025..7f38c01fb3a 100644
--- a/drivers/i2c/busses/i2c-elektor.c
+++ b/drivers/i2c/busses/i2c-elektor.c
@@ -196,13 +196,11 @@ static struct i2c_algo_pcf_data pcf_isa_data = {
         .getown     = pcf_isa_getown,
         .getclock   = pcf_isa_getclock,
         .waitforpin = pcf_isa_waitforpin,
-        .udelay     = 10,
-        .timeout    = 100,
 };
 
 static struct i2c_adapter pcf_isa_ops = {
         .owner          = THIS_MODULE,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .id             = I2C_HW_P_ELEK,
         .algo_data      = &pcf_isa_data,
         .name           = "i2c-elektor",
diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index 7c1b762aa68..79b455a1f09 100644
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -140,7 +140,7 @@ static int __init i2c_gpio_probe(struct platform_device *pdev)
         adap->owner = THIS_MODULE;
         snprintf(adap->name, sizeof(adap->name), "i2c-gpio%d", pdev->id);
         adap->algo_data = bit_data;
-        adap->class = I2C_CLASS_HWMON;
+        adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         adap->dev.parent = &pdev->dev;
 
         /*
diff --git a/drivers/i2c/busses/i2c-hydra.c b/drivers/i2c/busses/i2c-hydra.c
index f9972f9651e..1098f21ace1 100644
--- a/drivers/i2c/busses/i2c-hydra.c
+++ b/drivers/i2c/busses/i2c-hydra.c
@@ -1,7 +1,4 @@
 /*
-    i2c-hydra.c - Part of lm_sensors,  Linux kernel modules
-                  for hardware monitoring
-
     i2c Support for the Apple `Hydra' Mac I/O
 
     Copyright (c) 1999-2004 Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index b0f771fe432..dc7ea32b69a 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1,10 +1,8 @@
 /*
-    i2c-i801.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998 - 2002  Frodo Looijaard <frodol@dds.nl>,
     Philip Edelbrock <phil@netroedge.com>, and Mark D. Studebaker
     <mdsxyz123@yahoo.com>
-    Copyright (C) 2007         Jean Delvare <khali@linux-fr.org>
+    Copyright (C) 2007, 2008   Jean Delvare <khali@linux-fr.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -64,6 +62,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* I801 SMBus address offsets */
@@ -121,6 +120,10 @@
 #define SMBHSTSTS_INTR          0x02
 #define SMBHSTSTS_HOST_BUSY     0x01
 
+#define STATUS_FLAGS            (SMBHSTSTS_BYTE_DONE | SMBHSTSTS_FAILED | \
+                                 SMBHSTSTS_BUS_ERR | SMBHSTSTS_DEV_ERR | \
+                                 SMBHSTSTS_INTR)
+
 static unsigned long i801_smba;
 static unsigned char i801_original_hstcfg;
 static struct pci_driver i801_driver;
@@ -132,105 +135,137 @@ static struct pci_dev *I801_dev;
 #define FEATURE_I2C_BLOCK_READ  (1 << 3)
 static unsigned int i801_features;
 
-static int i801_transaction(int xact)
+/* Make sure the SMBus host is ready to start transmitting.
+   Return 0 if it is, -EBUSY if it is not. */
+static int i801_check_pre(void)
 {
-        int temp;
-        int result = 0;
-        int timeout = 0;
+        int status;
 
-        dev_dbg(&I801_dev->dev, "Transaction (pre): CNT=%02x, CMD=%02x, "
-                "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT),
-                inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0),
-                inb_p(SMBHSTDAT1));
-
-        /* Make sure the SMBus host is ready to start transmitting */
-        /* 0x1f = Failed, Bus_Err, Dev_Err, Intr, Host_Busy */
-        if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
-                dev_dbg(&I801_dev->dev, "SMBus busy (%02x). Resetting...\n",
-                        temp);
-                outb_p(temp, SMBHSTSTS);
-                if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
-                        dev_dbg(&I801_dev->dev, "Failed! (%02x)\n", temp);
-                        return -1;
-                } else {
-                        dev_dbg(&I801_dev->dev, "Successful!\n");
+        status = inb_p(SMBHSTSTS);
+        if (status & SMBHSTSTS_HOST_BUSY) {
+                dev_err(&I801_dev->dev, "SMBus is busy, can't use it!\n");
+                return -EBUSY;
+        }
+
+        status &= STATUS_FLAGS;
+        if (status) {
+                dev_dbg(&I801_dev->dev, "Clearing status flags (%02x)\n",
+                        status);
+                outb_p(status, SMBHSTSTS);
+                status = inb_p(SMBHSTSTS) & STATUS_FLAGS;
+                if (status) {
+                        dev_err(&I801_dev->dev,
+                                "Failed clearing status flags (%02x)\n",
+                                status);
+                        return -EBUSY;
                 }
         }
 
-        /* the current contents of SMBHSTCNT can be overwritten, since PEC,
-         * INTREN, SMBSCMD are passed in xact */
-        outb_p(xact | I801_START, SMBHSTCNT);
+        return 0;
+}
 
-        /* We will always wait for a fraction of a second! */
-        do {
-                msleep(1);
-                temp = inb_p(SMBHSTSTS);
-        } while ((temp & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_TIMEOUT));
+/* Convert the status register to an error code, and clear it. */
+static int i801_check_post(int status, int timeout)
+{
+        int result = 0;
 
         /* If the SMBus is still busy, we give up */
-        if (timeout >= MAX_TIMEOUT) {
-                dev_dbg(&I801_dev->dev, "SMBus Timeout!\n");
-                result = -1;
+        if (timeout) {
+                dev_err(&I801_dev->dev, "Transaction timeout\n");
                 /* try to stop the current command */
                 dev_dbg(&I801_dev->dev, "Terminating the current operation\n");
                 outb_p(inb_p(SMBHSTCNT) | SMBHSTCNT_KILL, SMBHSTCNT);
                 msleep(1);
                 outb_p(inb_p(SMBHSTCNT) & (~SMBHSTCNT_KILL), SMBHSTCNT);
-        }
 
-        if (temp & SMBHSTSTS_FAILED) {
-                result = -1;
-                dev_dbg(&I801_dev->dev, "Error: Failed bus transaction\n");
+                /* Check if it worked */
+                status = inb_p(SMBHSTSTS);
+                if ((status & SMBHSTSTS_HOST_BUSY) ||
+                    !(status & SMBHSTSTS_FAILED))
+                        dev_err(&I801_dev->dev,
+                                "Failed terminating the transaction\n");
+                outb_p(STATUS_FLAGS, SMBHSTSTS);
+                return -ETIMEDOUT;
         }
 
-        if (temp & SMBHSTSTS_BUS_ERR) {
-                result = -1;
-                dev_err(&I801_dev->dev, "Bus collision! SMBus may be locked "
-                        "until next hard reset. (sorry!)\n");
-                /* Clock stops and slave is stuck in mid-transmission */
+        if (status & SMBHSTSTS_FAILED) {
+                result = -EIO;
+                dev_err(&I801_dev->dev, "Transaction failed\n");
         }
-
-        if (temp & SMBHSTSTS_DEV_ERR) {
-                result = -1;
-                dev_dbg(&I801_dev->dev, "Error: no response!\n");
+        if (status & SMBHSTSTS_DEV_ERR) {
+                result = -ENXIO;
+                dev_dbg(&I801_dev->dev, "No response\n");
+        }
+        if (status & SMBHSTSTS_BUS_ERR) {
+                result = -EAGAIN;
+                dev_dbg(&I801_dev->dev, "Lost arbitration\n");
         }
 
-        if ((inb_p(SMBHSTSTS) & 0x1f) != 0x00)
-                outb_p(inb(SMBHSTSTS), SMBHSTSTS);
-
-        if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) {
-                dev_dbg(&I801_dev->dev, "Failed reset at end of transaction "
-                        "(%02x)\n", temp);
+        if (result) {
+                /* Clear error flags */
+                outb_p(status & STATUS_FLAGS, SMBHSTSTS);
+                status = inb_p(SMBHSTSTS) & STATUS_FLAGS;
+                if (status) {
+                        dev_warn(&I801_dev->dev, "Failed clearing status "
+                                 "flags at end of transaction (%02x)\n",
+                                 status);
+                }
         }
-        dev_dbg(&I801_dev->dev, "Transaction (post): CNT=%02x, CMD=%02x, "
-                "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT),
-                inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0),
-                inb_p(SMBHSTDAT1));
+
         return result;
 }
 
+static int i801_transaction(int xact)
+{
+        int status;
+        int result;
+        int timeout = 0;
+
+        result = i801_check_pre();
+        if (result < 0)
+                return result;
+
+        /* the current contents of SMBHSTCNT can be overwritten, since PEC,
+         * INTREN, SMBSCMD are passed in xact */
+        outb_p(xact | I801_START, SMBHSTCNT);
+
+        /* We will always wait for a fraction of a second! */
+        do {
+                msleep(1);
+                status = inb_p(SMBHSTSTS);
+        } while ((status & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_TIMEOUT));
+
+        result = i801_check_post(status, timeout >= MAX_TIMEOUT);
+        if (result < 0)
+                return result;
+
+        outb_p(SMBHSTSTS_INTR, SMBHSTSTS);
+        return 0;
+}
+
 /* wait for INTR bit as advised by Intel */
 static void i801_wait_hwpec(void)
 {
         int timeout = 0;
-        int temp;
+        int status;
 
         do {
                 msleep(1);
-                temp = inb_p(SMBHSTSTS);
-        } while ((!(temp & SMBHSTSTS_INTR))
+                status = inb_p(SMBHSTSTS);
+        } while ((!(status & SMBHSTSTS_INTR))
                  && (timeout++ < MAX_TIMEOUT));
 
         if (timeout >= MAX_TIMEOUT) {
                 dev_dbg(&I801_dev->dev, "PEC Timeout!\n");
         }
-        outb_p(temp, SMBHSTSTS);
+        outb_p(status, SMBHSTSTS);
 }
 
 static int i801_block_transaction_by_block(union i2c_smbus_data *data,
                                            char read_write, int hwpec)
 {
         int i, len;
+        int status;
 
         inb_p(SMBHSTCNT); /* reset the data buffer index */
 
@@ -242,14 +277,15 @@ static int i801_block_transaction_by_block(union i2c_smbus_data *data,
                         outb_p(data->block[i+1], SMBBLKDAT);
         }
 
-        if (i801_transaction(I801_BLOCK_DATA | ENABLE_INT9 |
-                             I801_PEC_EN * hwpec))
-                return -1;
+        status = i801_transaction(I801_BLOCK_DATA | ENABLE_INT9 |
+                                  I801_PEC_EN * hwpec);
+        if (status)
+                return status;
 
         if (read_write == I2C_SMBUS_READ) {
                 len = inb_p(SMBHSTDAT0);
                 if (len < 1 || len > I2C_SMBUS_BLOCK_MAX)
-                        return -1;
+                        return -EPROTO;
 
                 data->block[0] = len;
                 for (i = 0; i < len; i++)
@@ -264,10 +300,13 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
 {
         int i, len;
         int smbcmd;
-        int temp;
-        int result = 0;
+        int status;
+        int result;
         int timeout;
-        unsigned char errmask;
+
+        result = i801_check_pre();
+        if (result < 0)
+                return result;
 
         len = data->block[0];
 
@@ -291,36 +330,6 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
                 }
                 outb_p(smbcmd | ENABLE_INT9, SMBHSTCNT);
 
-                dev_dbg(&I801_dev->dev, "Block (pre %d): CNT=%02x, CMD=%02x, "
-                        "ADD=%02x, DAT0=%02x, DAT1=%02x, BLKDAT=%02x\n", i,
-                        inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD),
-                        inb_p(SMBHSTDAT0), inb_p(SMBHSTDAT1), inb_p(SMBBLKDAT));
-
-                /* Make sure the SMBus host is ready to start transmitting */
-                temp = inb_p(SMBHSTSTS);
-                if (i == 1) {
-                        /* Erroneous conditions before transaction:
-                         * Byte_Done, Failed, Bus_Err, Dev_Err, Intr, Host_Busy */
-                        errmask = 0x9f;
-                } else {
-                        /* Erroneous conditions during transaction:
-                         * Failed, Bus_Err, Dev_Err, Intr */
-                        errmask = 0x1e;
-                }
-                if (temp & errmask) {
-                        dev_dbg(&I801_dev->dev, "SMBus busy (%02x). "
-                                "Resetting...\n", temp);
-                        outb_p(temp, SMBHSTSTS);
-                        if (((temp = inb_p(SMBHSTSTS)) & errmask) != 0x00) {
-                                dev_err(&I801_dev->dev,
-                                        "Reset failed! (%02x)\n", temp);
-                                return -1;
-                        }
-                        if (i != 1)
-                                /* if die in middle of block transaction, fail */
-                                return -1;
-                }
-
                 if (i == 1)
                         outb_p(inb(SMBHSTCNT) | I801_START, SMBHSTCNT);
 
@@ -328,41 +337,28 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
                 timeout = 0;
                 do {
                         msleep(1);
-                        temp = inb_p(SMBHSTSTS);
+                        status = inb_p(SMBHSTSTS);
                 }
-                while ((!(temp & SMBHSTSTS_BYTE_DONE))
+                while ((!(status & SMBHSTSTS_BYTE_DONE))
                        && (timeout++ < MAX_TIMEOUT));
 
-                /* If the SMBus is still busy, we give up */
-                if (timeout >= MAX_TIMEOUT) {
-                        /* try to stop the current command */
-                        dev_dbg(&I801_dev->dev, "Terminating the current "
-                                                "operation\n");
-                        outb_p(inb_p(SMBHSTCNT) | SMBHSTCNT_KILL, SMBHSTCNT);
-                        msleep(1);
-                        outb_p(inb_p(SMBHSTCNT) & (~SMBHSTCNT_KILL),
-                                SMBHSTCNT);
-                        result = -1;
-                        dev_dbg(&I801_dev->dev, "SMBus Timeout!\n");
-                }
-
-                if (temp & SMBHSTSTS_FAILED) {
-                        result = -1;
-                        dev_dbg(&I801_dev->dev,
-                                "Error: Failed bus transaction\n");
-                } else if (temp & SMBHSTSTS_BUS_ERR) {
-                        result = -1;
-                        dev_err(&I801_dev->dev, "Bus collision!\n");
-                } else if (temp & SMBHSTSTS_DEV_ERR) {
-                        result = -1;
-                        dev_dbg(&I801_dev->dev, "Error: no response!\n");
-                }
+                result = i801_check_post(status, timeout >= MAX_TIMEOUT);
+                if (result < 0)
+                        return result;
 
                 if (i == 1 && read_write == I2C_SMBUS_READ
                  && command != I2C_SMBUS_I2C_BLOCK_DATA) {
                         len = inb_p(SMBHSTDAT0);
-                        if (len < 1 || len > I2C_SMBUS_BLOCK_MAX)
-                                return -1;
+                        if (len < 1 || len > I2C_SMBUS_BLOCK_MAX) {
+                                dev_err(&I801_dev->dev,
+                                        "Illegal SMBus block read size %d\n",
+                                        len);
+                                /* Recover */
+                                while (inb_p(SMBHSTSTS) & SMBHSTSTS_HOST_BUSY)
+                                        outb_p(SMBHSTSTS_BYTE_DONE, SMBHSTSTS);
+                                outb_p(SMBHSTSTS_INTR, SMBHSTSTS);
+                                return -EPROTO;
+                        }
                         data->block[0] = len;
                 }
 
@@ -371,30 +367,19 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data,
                         data->block[i] = inb_p(SMBBLKDAT);
                 if (read_write == I2C_SMBUS_WRITE && i+1 <= len)
                         outb_p(data->block[i+1], SMBBLKDAT);
-                if ((temp & 0x9e) != 0x00)
-                        outb_p(temp, SMBHSTSTS);  /* signals SMBBLKDAT ready */
-
-                if ((temp = (0x1e & inb_p(SMBHSTSTS))) != 0x00) {
-                        dev_dbg(&I801_dev->dev,
-                                "Bad status (%02x) at end of transaction\n",
-                                temp);
-                }
-                dev_dbg(&I801_dev->dev, "Block (post %d): CNT=%02x, CMD=%02x, "
-                        "ADD=%02x, DAT0=%02x, DAT1=%02x, BLKDAT=%02x\n", i,
-                        inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD),
-                        inb_p(SMBHSTDAT0), inb_p(SMBHSTDAT1), inb_p(SMBBLKDAT));
 
-                if (result < 0)
-                        return result;
+                /* signals SMBBLKDAT ready */
+                outb_p(SMBHSTSTS_BYTE_DONE | SMBHSTSTS_INTR, SMBHSTSTS);
         }
-        return result;
+
+        return 0;
 }
 
 static int i801_set_block_buffer_mode(void)
 {
         outb_p(inb_p(SMBAUXCTL) | SMBAUXCTL_E32B, SMBAUXCTL);
         if ((inb_p(SMBAUXCTL) & SMBAUXCTL_E32B) == 0)
-                return -1;
+                return -EIO;
         return 0;
 }
 
@@ -414,7 +399,7 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
                 } else if (!(i801_features & FEATURE_I2C_BLOCK_READ)) {
                         dev_err(&I801_dev->dev,
                                 "I2C block read is unsupported!\n");
-                        return -1;
+                        return -EOPNOTSUPP;
                 }
         }
 
@@ -449,7 +434,7 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
         return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 i801_access(struct i2c_adapter * adap, u16 addr,
                        unsigned short flags, char read_write, u8 command,
                        int size, union i2c_smbus_data * data)
@@ -511,10 +496,9 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
                         outb_p(command, SMBHSTCMD);
                 block = 1;
                 break;
-        case I2C_SMBUS_PROC_CALL:
         default:
                 dev_err(&I801_dev->dev, "Unsupported transaction %d\n", size);
-                return -1;
+                return -EOPNOTSUPP;
         }
 
         if (hwpec)      /* enable/disable hardware PEC */
@@ -537,7 +521,7 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
         if(block)
                 return ret;
         if(ret)
-                return -1;
+                return ret;
         if ((read_write == I2C_SMBUS_WRITE) || (xact == I801_QUICK))
                 return 0;
 
@@ -572,7 +556,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter i801_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_I801,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
@@ -639,6 +623,10 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id
                 goto exit;
         }
 
+        err = acpi_check_resource_conflict(&dev->resource[SMBBAR]);
+        if (err)
+                goto exit;
+
         err = pci_request_region(dev, SMBBAR, i801_driver.name);
         if (err) {
                 dev_err(&dev->dev, "Failed to request SMBus region "
diff --git a/drivers/i2c/busses/i2c-i810.c b/drivers/i2c/busses/i2c-i810.c
deleted file mode 100644
index 42e8d94c276..00000000000
--- a/drivers/i2c/busses/i2c-i810.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
-    i2c-i810.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-    Copyright (c) 1998, 1999, 2000  Frodo Looijaard <frodol@dds.nl>,
-    Philip Edelbrock <phil@netroedge.com>,
-    Ralph Metzler <rjkm@thp.uni-koeln.de>, and
-    Mark D. Studebaker <mdsxyz123@yahoo.com>
-    
-    Based on code written by Ralph Metzler <rjkm@thp.uni-koeln.de> and
-    Simon Vogl
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-/*
-   This interfaces to the I810/I815 to provide access to
-   the DDC Bus and the I2C Bus.
-
-   SUPPORTED DEVICES    PCI ID
-   i810AA               7121           
-   i810AB               7123           
-   i810E                7125           
-   i815                 1132           
-   i845G                2562
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include <asm/io.h>
-
-/* GPIO register locations */
-#define I810_IOCONTROL_OFFSET   0x5000
-#define I810_HVSYNC             0x00    /* not used */
-#define I810_GPIOA              0x10
-#define I810_GPIOB              0x14
-
-/* bit locations in the registers */
-#define SCL_DIR_MASK            0x0001
-#define SCL_DIR                 0x0002
-#define SCL_VAL_MASK            0x0004
-#define SCL_VAL_OUT             0x0008
-#define SCL_VAL_IN              0x0010
-#define SDA_DIR_MASK            0x0100
-#define SDA_DIR                 0x0200
-#define SDA_VAL_MASK            0x0400
-#define SDA_VAL_OUT             0x0800
-#define SDA_VAL_IN              0x1000
-
-/* initialization states */
-#define INIT1                   0x1
-#define INIT2                   0x2
-#define INIT3                   0x4
-
-/* delays */
-#define CYCLE_DELAY             10
-#define TIMEOUT                 (HZ / 2)
-
-static void __iomem *ioaddr;
-
-/* The i810 GPIO registers have individual masks for each bit
-   so we never have to read before writing. Nice. */
-
-static void bit_i810i2c_setscl(void *data, int val)
-{
-        writel((val ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK,
-             ioaddr + I810_GPIOB);
-        readl(ioaddr + I810_GPIOB);     /* flush posted write */
-}
-
-static void bit_i810i2c_setsda(void *data, int val)
-{
-        writel((val ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK,
-             ioaddr + I810_GPIOB);
-        readl(ioaddr + I810_GPIOB);     /* flush posted write */
-}
-
-/* The GPIO pins are open drain, so the pins could always remain outputs.
-   However, some chip versions don't latch the inputs unless they
-   are set as inputs.
-   We rely on the i2c-algo-bit routines to set the pins high before
-   reading the input from other chips. Following guidance in the 815
-   prog. ref. guide, we do a "dummy write" of 0 to the register before
-   reading which forces the input value to be latched. We presume this
-   applies to the 810 as well; shouldn't hurt anyway. This is necessary to get
-   i2c_algo_bit bit_test=1 to pass. */
-
-static int bit_i810i2c_getscl(void *data)
-{
-        writel(SCL_DIR_MASK, ioaddr + I810_GPIOB);
-        writel(0, ioaddr + I810_GPIOB);
-        return (0 != (readl(ioaddr + I810_GPIOB) & SCL_VAL_IN));
-}
-
-static int bit_i810i2c_getsda(void *data)
-{
-        writel(SDA_DIR_MASK, ioaddr + I810_GPIOB);
-        writel(0, ioaddr + I810_GPIOB);
-        return (0 != (readl(ioaddr + I810_GPIOB) & SDA_VAL_IN));
-}
-
-static void bit_i810ddc_setscl(void *data, int val)
-{
-        writel((val ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK,
-             ioaddr + I810_GPIOA);
-        readl(ioaddr + I810_GPIOA);     /* flush posted write */
-}
-
-static void bit_i810ddc_setsda(void *data, int val)
-{
-        writel((val ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK,
-             ioaddr + I810_GPIOA);
-        readl(ioaddr + I810_GPIOA);     /* flush posted write */
-}
-
-static int bit_i810ddc_getscl(void *data)
-{
-        writel(SCL_DIR_MASK, ioaddr + I810_GPIOA);
-        writel(0, ioaddr + I810_GPIOA);
-        return (0 != (readl(ioaddr + I810_GPIOA) & SCL_VAL_IN));
-}
-
-static int bit_i810ddc_getsda(void *data)
-{
-        writel(SDA_DIR_MASK, ioaddr + I810_GPIOA);
-        writel(0, ioaddr + I810_GPIOA);
-        return (0 != (readl(ioaddr + I810_GPIOA) & SDA_VAL_IN));
-}
-
-static int config_i810(struct pci_dev *dev)
-{
-        unsigned long cadr;
-
-        /* map I810 memory */
-        cadr = dev->resource[1].start;
-        cadr += I810_IOCONTROL_OFFSET;
-        cadr &= PCI_BASE_ADDRESS_MEM_MASK;
-        ioaddr = ioremap_nocache(cadr, 0x1000);
-        if (ioaddr) {
-                bit_i810i2c_setscl(NULL, 1);
-                bit_i810i2c_setsda(NULL, 1);
-                bit_i810ddc_setscl(NULL, 1);
-                bit_i810ddc_setsda(NULL, 1);
-                return 0;
-        }
-        return -ENODEV;
-}
-
-static struct i2c_algo_bit_data i810_i2c_bit_data = {
-        .setsda         = bit_i810i2c_setsda,
-        .setscl         = bit_i810i2c_setscl,
-        .getsda         = bit_i810i2c_getsda,
-        .getscl         = bit_i810i2c_getscl,
-        .udelay         = CYCLE_DELAY,
-        .timeout        = TIMEOUT,
-};
-
-static struct i2c_adapter i810_i2c_adapter = {
-        .owner          = THIS_MODULE,
-        .id             = I2C_HW_B_I810,
-        .name           = "I810/I815 I2C Adapter",
-        .algo_data      = &i810_i2c_bit_data,
-};
-
-static struct i2c_algo_bit_data i810_ddc_bit_data = {
-        .setsda         = bit_i810ddc_setsda,
-        .setscl         = bit_i810ddc_setscl,
-        .getsda         = bit_i810ddc_getsda,
-        .getscl         = bit_i810ddc_getscl,
-        .udelay         = CYCLE_DELAY,
-        .timeout        = TIMEOUT,
-};
-
-static struct i2c_adapter i810_ddc_adapter = {
-        .owner          = THIS_MODULE,
-        .id             = I2C_HW_B_I810,
-        .name           = "I810/I815 DDC Adapter",
-        .algo_data      = &i810_ddc_bit_data,
-};
-
-static struct pci_device_id i810_ids[] __devinitdata = {
-        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG1) },
-        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3) },
-        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810E_IG) },
-        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC) },
-        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_IG) },
-        { 0, },
-};
-
-MODULE_DEVICE_TABLE (pci, i810_ids);
-
-static int __devinit i810_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-        int retval;
-
-        retval = config_i810(dev);
-        if (retval)
-                return retval;
-        dev_info(&dev->dev, "i810/i815 i2c device found.\n");
-
-        /* set up the sysfs linkage to our parent device */
-        i810_i2c_adapter.dev.parent = &dev->dev;
-        i810_ddc_adapter.dev.parent = &dev->dev;
-
-        retval = i2c_bit_add_bus(&i810_i2c_adapter);
-        if (retval)
-                return retval;
-        retval = i2c_bit_add_bus(&i810_ddc_adapter);
-        if (retval)
-                i2c_del_adapter(&i810_i2c_adapter);
-        return retval;
-}
-
-static void __devexit i810_remove(struct pci_dev *dev)
-{
-        i2c_del_adapter(&i810_ddc_adapter);
-        i2c_del_adapter(&i810_i2c_adapter);
-        iounmap(ioaddr);
-}
-
-static struct pci_driver i810_driver = {
-        .name           = "i810_smbus",
-        .id_table       = i810_ids,
-        .probe          = i810_probe,
-        .remove         = __devexit_p(i810_remove),
-};
-
-static int __init i2c_i810_init(void)
-{
-        return pci_register_driver(&i810_driver);
-}
-
-static void __exit i2c_i810_exit(void)
-{
-        pci_unregister_driver(&i810_driver);
-}
-
-MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
-                "Philip Edelbrock <phil@netroedge.com>, "
-                "Ralph Metzler <rjkm@thp.uni-koeln.de>, "
-                "and Mark D. Studebaker <mdsxyz123@yahoo.com>");
-MODULE_DESCRIPTION("I810/I815 I2C/DDC driver");
-MODULE_LICENSE("GPL");
-
-module_init(i2c_i810_init);
-module_exit(i2c_i810_exit);
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 85dbf34382e..651f2f1ae5b 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -42,13 +42,8 @@
 #include <asm/io.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
-
-#ifdef CONFIG_IBM_OCP
-#include <asm/ocp.h>
-#include <asm/ibm4xx.h>
-#else
 #include <linux/of_platform.h>
-#endif
+#include <linux/of_i2c.h>
 
 #include "i2c-ibm_iic.h"
 
@@ -665,180 +660,6 @@ static inline u8 iic_clckdiv(unsigned int opb)
         return (u8)((opb + 9) / 10 - 1);
 }
 
-#ifdef CONFIG_IBM_OCP
-/*
- * Register single IIC interface
- */
-static int __devinit iic_probe(struct ocp_device *ocp){
-
-        struct ibm_iic_private* dev;
-        struct i2c_adapter* adap;
-        struct ocp_func_iic_data* iic_data = ocp->def->additions;
-        int ret;
-
-        if (!iic_data)
-                printk(KERN_WARNING"ibm-iic%d: missing additional data!\n",
-                        ocp->def->index);
-
-        if (!(dev = kzalloc(sizeof(*dev), GFP_KERNEL))) {
-                printk(KERN_ERR "ibm-iic%d: failed to allocate device data\n",
-                        ocp->def->index);
-                return -ENOMEM;
-        }
-
-        dev->idx = ocp->def->index;
-        ocp_set_drvdata(ocp, dev);
-
-        if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs),
-                                "ibm_iic")) {
-                ret = -EBUSY;
-                goto fail1;
-        }
-
-        if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){
-                printk(KERN_ERR "ibm-iic%d: failed to ioremap device registers\n",
-                        dev->idx);
-                ret = -ENXIO;
-                goto fail2;
-        }
-
-        init_waitqueue_head(&dev->wq);
-
-        dev->irq = iic_force_poll ? -1 : ocp->def->irq;
-        if (dev->irq >= 0){
-                /* Disable interrupts until we finish initialization,
-                   assumes level-sensitive IRQ setup...
-                 */
-                iic_interrupt_mode(dev, 0);
-                if (request_irq(dev->irq, iic_handler, 0, "IBM IIC", dev)){
-                        printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n",
-                                dev->idx, dev->irq);
-                        /* Fallback to the polling mode */
-                        dev->irq = -1;
-                }
-        }
-
-        if (dev->irq < 0)
-                printk(KERN_WARNING "ibm-iic%d: using polling mode\n",
-                        dev->idx);
-
-        /* Board specific settings */
-        dev->fast_mode = iic_force_fast ? 1 : (iic_data ? iic_data->fast_mode : 0);
-
-        /* clckdiv is the same for *all* IIC interfaces,
-         * but I'd rather make a copy than introduce another global. --ebs
-         */
-        dev->clckdiv = iic_clckdiv(ocp_sys_info.opb_bus_freq);
-        DBG("%d: clckdiv = %d\n", dev->idx, dev->clckdiv);
-
-        /* Initialize IIC interface */
-        iic_dev_init(dev);
-
-        /* Register it with i2c layer */
-        adap = &dev->adap;
-        adap->dev.parent = &ocp->dev;
-        strcpy(adap->name, "IBM IIC");
-        i2c_set_adapdata(adap, dev);
-        adap->id = I2C_HW_OCP;
-        adap->class = I2C_CLASS_HWMON;
-        adap->algo = &iic_algo;
-        adap->client_register = NULL;
-        adap->client_unregister = NULL;
-        adap->timeout = 1;
-
-        /*
-         * If "dev->idx" is negative we consider it as zero.
-         * The reason to do so is to avoid sysfs names that only make
-         * sense when there are multiple adapters.
-         */
-        adap->nr = dev->idx >= 0 ? dev->idx : 0;
-
-        if ((ret = i2c_add_numbered_adapter(adap)) < 0) {
-                printk(KERN_ERR "ibm-iic%d: failed to register i2c adapter\n",
-                        dev->idx);
-                goto fail;
-        }
-
-        printk(KERN_INFO "ibm-iic%d: using %s mode\n", dev->idx,
-                dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
-
-        return 0;
-
-fail:
-        if (dev->irq >= 0){
-                iic_interrupt_mode(dev, 0);
-                free_irq(dev->irq, dev);
-        }
-
-        iounmap(dev->vaddr);
-fail2:
-        release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
-fail1:
-        ocp_set_drvdata(ocp, NULL);
-        kfree(dev);
-        return ret;
-}
-
-/*
- * Cleanup initialized IIC interface
- */
-static void __devexit iic_remove(struct ocp_device *ocp)
-{
-        struct ibm_iic_private* dev = (struct ibm_iic_private*)ocp_get_drvdata(ocp);
-        BUG_ON(dev == NULL);
-        if (i2c_del_adapter(&dev->adap)){
-                printk(KERN_ERR "ibm-iic%d: failed to delete i2c adapter :(\n",
-                        dev->idx);
-                /* That's *very* bad, just shutdown IRQ ... */
-                if (dev->irq >= 0){
-                    iic_interrupt_mode(dev, 0);
-                    free_irq(dev->irq, dev);
-                    dev->irq = -1;
-                }
-        } else {
-                if (dev->irq >= 0){
-                    iic_interrupt_mode(dev, 0);
-                    free_irq(dev->irq, dev);
-                }
-                iounmap(dev->vaddr);
-                release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
-                kfree(dev);
-        }
-}
-
-static struct ocp_device_id ibm_iic_ids[] __devinitdata =
-{
-        { .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_IIC },
-        { .vendor = OCP_VENDOR_INVALID }
-};
-
-MODULE_DEVICE_TABLE(ocp, ibm_iic_ids);
-
-static struct ocp_driver ibm_iic_driver =
-{
-        .name           = "iic",
-        .id_table       = ibm_iic_ids,
-        .probe          = iic_probe,
-        .remove         = __devexit_p(iic_remove),
-#if defined(CONFIG_PM)
-        .suspend        = NULL,
-        .resume         = NULL,
-#endif
-};
-
-static int __init iic_init(void)
-{
-        printk(KERN_INFO "IBM IIC driver v" DRIVER_VERSION "\n");
-        return ocp_register_driver(&ibm_iic_driver);
-}
-
-static void __exit iic_exit(void)
-{
-        ocp_unregister_driver(&ibm_iic_driver);
-}
-
-#else  /* !CONFIG_IBM_OCP */
-
 static int __devinit iic_request_irq(struct of_device *ofdev,
                                      struct ibm_iic_private *dev)
 {
@@ -876,7 +697,7 @@ static int __devinit iic_probe(struct of_device *ofdev,
         struct device_node *np = ofdev->node;
         struct ibm_iic_private *dev;
         struct i2c_adapter *adap;
-        const u32 *indexp, *freq;
+        const u32 *freq;
         int ret;
 
         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
@@ -887,14 +708,6 @@ static int __devinit iic_probe(struct of_device *ofdev,
 
         dev_set_drvdata(&ofdev->dev, dev);
 
-        indexp = of_get_property(np, "index", NULL);
-        if (!indexp) {
-                dev_err(&ofdev->dev, "no index specified\n");
-                ret = -EINVAL;
-                goto error_cleanup;
-        }
-        dev->idx = *indexp;
-
         dev->vaddr = of_iomap(np, 0);
         if (dev->vaddr == NULL) {
                 dev_err(&ofdev->dev, "failed to iomap device\n");
@@ -934,17 +747,19 @@ static int __devinit iic_probe(struct of_device *ofdev,
         strlcpy(adap->name, "IBM IIC", sizeof(adap->name));
         i2c_set_adapdata(adap, dev);
         adap->id = I2C_HW_OCP;
-        adap->class = I2C_CLASS_HWMON;
+        adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         adap->algo = &iic_algo;
         adap->timeout = 1;
-        adap->nr = dev->idx;
 
-        ret = i2c_add_numbered_adapter(adap);
+        ret = i2c_add_adapter(adap);
         if (ret  < 0) {
                 dev_err(&ofdev->dev, "failed to register i2c adapter\n");
                 goto error_cleanup;
         }
 
+        /* Now register all the child nodes */
+        of_register_i2c_devices(adap, np);
+
         dev_info(&ofdev->dev, "using %s mode\n",
                  dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
 
@@ -987,11 +802,7 @@ static int __devexit iic_remove(struct of_device *ofdev)
 }
 
 static const struct of_device_id ibm_iic_match[] = {
-        { .compatible = "ibm,iic-405ex", },
-        { .compatible = "ibm,iic-405gp", },
-        { .compatible = "ibm,iic-440gp", },
-        { .compatible = "ibm,iic-440gpx", },
-        { .compatible = "ibm,iic-440grx", },
+        { .compatible = "ibm,iic", },
         {}
 };
 
@@ -1011,7 +822,6 @@ static void __exit iic_exit(void)
 {
         of_unregister_platform_driver(&ibm_iic_driver);
 }
-#endif /* CONFIG_IBM_OCP */
 
 module_init(iic_init);
 module_exit(iic_exit);
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index 39884e79759..fc2714ac0c0 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -482,7 +482,7 @@ iop3xx_i2c_probe(struct platform_device *pdev)
         memcpy(new_adapter->name, pdev->name, strlen(pdev->name));
         new_adapter->id = I2C_HW_IOP3XX;
         new_adapter->owner = THIS_MODULE;
-        new_adapter->class = I2C_CLASS_HWMON;
+        new_adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         new_adapter->dev.parent = &pdev->dev;
         new_adapter->nr = pdev->id;
 
diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c
new file mode 100644
index 00000000000..b9c01aa9003
--- /dev/null
+++ b/drivers/i2c/busses/i2c-isch.c
@@ -0,0 +1,339 @@
+/*
+    i2c-isch.c - Linux kernel driver for Intel SCH chipset SMBus
+    - Based on i2c-piix4.c
+    Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl> and
+    Philip Edelbrock <phil@netroedge.com>
+    - Intel SCH support
+    Copyright (c) 2007 - 2008 Jacob Jun Pan <jacob.jun.pan@intel.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License version 2 as
+    published by the Free Software Foundation.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+   Supports:
+        Intel SCH chipsets (AF82US15W, AF82US15L, AF82UL11L)
+   Note: we assume there can only be one device, with one SMBus interface.
+*/
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/stddef.h>
+#include <linux/ioport.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/acpi.h>
+
+/* SCH SMBus address offsets */
+#define SMBHSTCNT       (0 + sch_smba)
+#define SMBHSTSTS       (1 + sch_smba)
+#define SMBHSTADD       (4 + sch_smba) /* TSA */
+#define SMBHSTCMD       (5 + sch_smba)
+#define SMBHSTDAT0      (6 + sch_smba)
+#define SMBHSTDAT1      (7 + sch_smba)
+#define SMBBLKDAT       (0x20 + sch_smba)
+
+/* count for request_region */
+#define SMBIOSIZE       64
+
+/* PCI Address Constants */
+#define SMBBA_SCH       0x40
+
+/* Other settings */
+#define MAX_TIMEOUT     500
+
+/* I2C constants */
+#define SCH_QUICK               0x00
+#define SCH_BYTE                0x01
+#define SCH_BYTE_DATA           0x02
+#define SCH_WORD_DATA           0x03
+#define SCH_BLOCK_DATA          0x05
+
+static unsigned short sch_smba;
+static struct pci_driver sch_driver;
+static struct i2c_adapter sch_adapter;
+
+/*
+ * Start the i2c transaction -- the i2c_access will prepare the transaction
+ * and this function will execute it.
+ * return 0 for success and others for failure.
+ */
+static int sch_transaction(void)
+{
+        int temp;
+        int result = 0;
+        int timeout = 0;
+
+        dev_dbg(&sch_adapter.dev, "Transaction (pre): CNT=%02x, CMD=%02x, "
+                "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb(SMBHSTCNT),
+                inb(SMBHSTCMD), inb(SMBHSTADD), inb(SMBHSTDAT0),
+                inb(SMBHSTDAT1));
+
+        /* Make sure the SMBus host is ready to start transmitting */
+        temp = inb(SMBHSTSTS) & 0x0f;
+        if (temp) {
+                /* Can not be busy since we checked it in sch_access */
+                if (temp & 0x01) {
+                        dev_dbg(&sch_adapter.dev, "Completion (%02x). "
+                                "Clear...\n", temp);
+                }
+                if (temp & 0x06) {
+                        dev_dbg(&sch_adapter.dev, "SMBus error (%02x). "
+                                "Resetting...\n", temp);
+                }
+                outb(temp, SMBHSTSTS);
+                temp = inb(SMBHSTSTS) & 0x0f;
+                if (temp) {
+                        dev_err(&sch_adapter.dev,
+                                "SMBus is not ready: (%02x)\n", temp);
+                        return -EAGAIN;
+                }
+        }
+
+        /* start the transaction by setting bit 4 */
+        outb(inb(SMBHSTCNT) | 0x10, SMBHSTCNT);
+
+        do {
+                msleep(1);
+                temp = inb(SMBHSTSTS) & 0x0f;
+        } while ((temp & 0x08) && (timeout++ < MAX_TIMEOUT));
+
+        /* If the SMBus is still busy, we give up */
+        if (timeout >= MAX_TIMEOUT) {
+                dev_err(&sch_adapter.dev, "SMBus Timeout!\n");
+                result = -ETIMEDOUT;
+        }
+        if (temp & 0x04) {
+                result = -EIO;
+                dev_dbg(&sch_adapter.dev, "Bus collision! SMBus may be "
+                        "locked until next hard reset. (sorry!)\n");
+                /* Clock stops and slave is stuck in mid-transmission */
+        } else if (temp & 0x02) {
+                result = -EIO;
+                dev_err(&sch_adapter.dev, "Error: no response!\n");
+        } else if (temp & 0x01) {
+                dev_dbg(&sch_adapter.dev, "Post complete!\n");
+                outb(temp, SMBHSTSTS);
+                temp = inb(SMBHSTSTS) & 0x07;
+                if (temp & 0x06) {
+                        /* Completion clear failed */
+                        dev_dbg(&sch_adapter.dev, "Failed reset at end of "
+                                "transaction (%02x), Bus error!\n", temp);
+                }
+        } else {
+                result = -ENXIO;
+                dev_dbg(&sch_adapter.dev, "No such address.\n");
+        }
+        dev_dbg(&sch_adapter.dev, "Transaction (post): CNT=%02x, CMD=%02x, "
+                "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb(SMBHSTCNT),
+                inb(SMBHSTCMD), inb(SMBHSTADD), inb(SMBHSTDAT0),
+                inb(SMBHSTDAT1));
+        return result;
+}
+
+/*
+ * This is the main access entry for i2c-sch access
+ * adap is i2c_adapter pointer, addr is the i2c device bus address, read_write
+ * (0 for read and 1 for write), size is i2c transaction type and data is the
+ * union of transaction for data to be transfered or data read from bus.
+ * return 0 for success and others for failure.
+ */
+static s32 sch_access(struct i2c_adapter *adap, u16 addr,
+                 unsigned short flags, char read_write,
+                 u8 command, int size, union i2c_smbus_data *data)
+{
+        int i, len, temp, rc;
+
+        /* Make sure the SMBus host is not busy */
+        temp = inb(SMBHSTSTS) & 0x0f;
+        if (temp & 0x08) {
+                dev_dbg(&sch_adapter.dev, "SMBus busy (%02x)\n", temp);
+                return -EAGAIN;
+        }
+        dev_dbg(&sch_adapter.dev, "access size: %d %s\n", size,
+                (read_write)?"READ":"WRITE");
+        switch (size) {
+        case I2C_SMBUS_QUICK:
+                outb((addr << 1) | read_write, SMBHSTADD);
+                size = SCH_QUICK;
+                break;
+        case I2C_SMBUS_BYTE:
+                outb((addr << 1) | read_write, SMBHSTADD);
+                if (read_write == I2C_SMBUS_WRITE)
+                        outb(command, SMBHSTCMD);
+                size = SCH_BYTE;
+                break;
+        case I2C_SMBUS_BYTE_DATA:
+                outb((addr << 1) | read_write, SMBHSTADD);
+                outb(command, SMBHSTCMD);
+                if (read_write == I2C_SMBUS_WRITE)
+                        outb(data->byte, SMBHSTDAT0);
+                size = SCH_BYTE_DATA;
+                break;
+        case I2C_SMBUS_WORD_DATA:
+                outb((addr << 1) | read_write, SMBHSTADD);
+                outb(command, SMBHSTCMD);
+                if (read_write == I2C_SMBUS_WRITE) {
+                        outb(data->word & 0xff, SMBHSTDAT0);
+                        outb((data->word & 0xff00) >> 8, SMBHSTDAT1);
+                }
+                size = SCH_WORD_DATA;
+                break;
+        case I2C_SMBUS_BLOCK_DATA:
+                outb((addr << 1) | read_write, SMBHSTADD);
+                outb(command, SMBHSTCMD);
+                if (read_write == I2C_SMBUS_WRITE) {
+                        len = data->block[0];
+                        if (len == 0 || len > I2C_SMBUS_BLOCK_MAX)
+                                return -EINVAL;
+                        outb(len, SMBHSTDAT0);
+                        for (i = 1; i <= len; i++)
+                                outb(data->block[i], SMBBLKDAT+i-1);
+                }
+                size = SCH_BLOCK_DATA;
+                break;
+        default:
+                dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+                return -EOPNOTSUPP;
+        }
+        dev_dbg(&sch_adapter.dev, "write size %d to 0x%04x\n", size, SMBHSTCNT);
+        outb((inb(SMBHSTCNT) & 0xb0) | (size & 0x7), SMBHSTCNT);
+
+        rc = sch_transaction();
+        if (rc) /* Error in transaction */
+                return rc;
+
+        if ((read_write == I2C_SMBUS_WRITE) || (size == SCH_QUICK))
+                return 0;
+
+        switch (size) {
+        case SCH_BYTE:
+        case SCH_BYTE_DATA:
+                data->byte = inb(SMBHSTDAT0);
+                break;
+        case SCH_WORD_DATA:
+                data->word = inb(SMBHSTDAT0) + (inb(SMBHSTDAT1) << 8);
+                break;
+        case SCH_BLOCK_DATA:
+                data->block[0] = inb(SMBHSTDAT0);
+                if (data->block[0] == 0 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
+                        return -EPROTO;
+                for (i = 1; i <= data->block[0]; i++)
+                        data->block[i] = inb(SMBBLKDAT+i-1);
+                break;
+        }
+        return 0;
+}
+
+static u32 sch_func(struct i2c_adapter *adapter)
+{
+        return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
+            I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
+            I2C_FUNC_SMBUS_BLOCK_DATA;
+}
+
+static const struct i2c_algorithm smbus_algorithm = {
+        .smbus_xfer     = sch_access,
+        .functionality  = sch_func,
+};
+
+static struct i2c_adapter sch_adapter = {
+        .owner          = THIS_MODULE,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
+        .algo           = &smbus_algorithm,
+};
+
+static struct pci_device_id sch_ids[] = {
+        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
+        { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, sch_ids);
+
+static int __devinit sch_probe(struct pci_dev *dev,
+                                const struct pci_device_id *id)
+{
+        int retval;
+        unsigned int smba;
+
+        pci_read_config_dword(dev, SMBBA_SCH, &smba);
+        if (!(smba & (1 << 31))) {
+                dev_err(&dev->dev, "SMBus I/O space disabled!\n");
+                return -ENODEV;
+        }
+
+        sch_smba = (unsigned short)smba;
+        if (sch_smba == 0) {
+                dev_err(&dev->dev, "SMBus base address uninitialized!\n");
+                return -ENODEV;
+        }
+        if (acpi_check_region(sch_smba, SMBIOSIZE, sch_driver.name))
+                return -EBUSY;
+        if (!request_region(sch_smba, SMBIOSIZE, sch_driver.name)) {
+                dev_err(&dev->dev, "SMBus region 0x%x already in use!\n",
+                        sch_smba);
+                return -EBUSY;
+        }
+        dev_dbg(&dev->dev, "SMBA = 0x%X\n", sch_smba);
+
+        /* set up the sysfs linkage to our parent device */
+        sch_adapter.dev.parent = &dev->dev;
+
+        snprintf(sch_adapter.name, sizeof(sch_adapter.name),
+                "SMBus SCH adapter at %04x", sch_smba);
+
+        retval = i2c_add_adapter(&sch_adapter);
+        if (retval) {
+                dev_err(&dev->dev, "Couldn't register adapter!\n");
+                release_region(sch_smba, SMBIOSIZE);
+                sch_smba = 0;
+        }
+
+        return retval;
+}
+
+static void __devexit sch_remove(struct pci_dev *dev)
+{
+        if (sch_smba) {
+                i2c_del_adapter(&sch_adapter);
+                release_region(sch_smba, SMBIOSIZE);
+                sch_smba = 0;
+        }
+}
+
+static struct pci_driver sch_driver = {
+        .name           = "isch_smbus",
+        .id_table       = sch_ids,
+        .probe          = sch_probe,
+        .remove         = __devexit_p(sch_remove),
+};
+
+static int __init i2c_sch_init(void)
+{
+        return pci_register_driver(&sch_driver);
+}
+
+static void __exit i2c_sch_exit(void)
+{
+        pci_unregister_driver(&sch_driver);
+}
+
+MODULE_AUTHOR("Jacob Pan <jacob.jun.pan@intel.com>");
+MODULE_DESCRIPTION("Intel SCH SMBus driver");
+MODULE_LICENSE("GPL");
+
+module_init(i2c_sch_init);
+module_exit(i2c_sch_exit);
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index a076129de7e..10b9342a36c 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -311,7 +311,7 @@ static struct i2c_adapter mpc_ops = {
         .name = "MPC adapter",
         .id = I2C_HW_MPC107,
         .algo = &mpc_algo,
-        .class = I2C_CLASS_HWMON,
+        .class = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .timeout = 1,
 };
 
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 036e6a883e6..9e8118d2fe6 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -530,7 +530,7 @@ mv64xxx_i2c_probe(struct platform_device *pd)
         drv_data->adapter.id = I2C_HW_MV64XXX;
         drv_data->adapter.algo = &mv64xxx_i2c_algo;
         drv_data->adapter.owner = THIS_MODULE;
-        drv_data->adapter.class = I2C_CLASS_HWMON;
+        drv_data->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         drv_data->adapter.timeout = pdata->timeout;
         drv_data->adapter.nr = pd->id;
         platform_set_drvdata(pd, drv_data);
diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
new file mode 100644
index 00000000000..6a8995dfd0b
--- /dev/null
+++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
@@ -0,0 +1,257 @@
+/*
+ * i2c-nforce2-s4985.c - i2c-nforce2 extras for the Tyan S4985 motherboard
+ *
+ * Copyright (C) 2008 Jean Delvare <khali@linux-fr.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * We select the channels by sending commands to the Philips
+ * PCA9556 chip at I2C address 0x18. The main adapter is used for
+ * the non-multiplexed part of the bus, and 4 virtual adapters
+ * are defined for the multiplexed addresses: 0x50-0x53 (memory
+ * module EEPROM) located on channels 1-4. We define one virtual
+ * adapter per CPU, which corresponds to one multiplexed channel:
+ *   CPU0: virtual adapter 1, channel 1
+ *   CPU1: virtual adapter 2, channel 2
+ *   CPU2: virtual adapter 3, channel 3
+ *   CPU3: virtual adapter 4, channel 4
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+
+extern struct i2c_adapter *nforce2_smbus;
+
+static struct i2c_adapter *s4985_adapter;
+static struct i2c_algorithm *s4985_algo;
+
+/* Wrapper access functions for multiplexed SMBus */
+static DEFINE_MUTEX(nforce2_lock);
+
+static s32 nforce2_access_virt0(struct i2c_adapter *adap, u16 addr,
+                                unsigned short flags, char read_write,
+                                u8 command, int size,
+                                union i2c_smbus_data *data)
+{
+        int error;
+
+        /* We exclude the multiplexed addresses */
+        if ((addr & 0xfc) == 0x50 || (addr & 0xfc) == 0x30
+         || addr == 0x18)
+                return -ENXIO;
+
+        mutex_lock(&nforce2_lock);
+        error = nforce2_smbus->algo->smbus_xfer(adap, addr, flags, read_write,
+                                                command, size, data);
+        mutex_unlock(&nforce2_lock);
+
+        return error;
+}
+
+/* We remember the last used channels combination so as to only switch
+   channels when it is really needed. This greatly reduces the SMBus
+   overhead, but also assumes that nobody will be writing to the PCA9556
+   in our back. */
+static u8 last_channels;
+
+static inline s32 nforce2_access_channel(struct i2c_adapter *adap, u16 addr,
+                                         unsigned short flags, char read_write,
+                                         u8 command, int size,
+                                         union i2c_smbus_data *data,
+                                         u8 channels)
+{
+        int error;
+
+        /* We exclude the non-multiplexed addresses */
+        if ((addr & 0xfc) != 0x50 && (addr & 0xfc) != 0x30)
+                return -ENXIO;
+
+        mutex_lock(&nforce2_lock);
+        if (last_channels != channels) {
+                union i2c_smbus_data mplxdata;
+                mplxdata.byte = channels;
+
+                error = nforce2_smbus->algo->smbus_xfer(adap, 0x18, 0,
+                                                        I2C_SMBUS_WRITE, 0x01,
+                                                        I2C_SMBUS_BYTE_DATA,
+                                                        &mplxdata);
+                if (error)
+                        goto UNLOCK;
+                last_channels = channels;
+        }
+        error = nforce2_smbus->algo->smbus_xfer(adap, addr, flags, read_write,
+                                                command, size, data);
+
+UNLOCK:
+        mutex_unlock(&nforce2_lock);
+        return error;
+}
+
+static s32 nforce2_access_virt1(struct i2c_adapter *adap, u16 addr,
+                                unsigned short flags, char read_write,
+                                u8 command, int size,
+                                union i2c_smbus_data *data)
+{
+        /* CPU0: channel 1 enabled */
+        return nforce2_access_channel(adap, addr, flags, read_write, command,
+                                      size, data, 0x02);
+}
+
+static s32 nforce2_access_virt2(struct i2c_adapter *adap, u16 addr,
+                                unsigned short flags, char read_write,
+                                u8 command, int size,
+                                union i2c_smbus_data *data)
+{
+        /* CPU1: channel 2 enabled */
+        return nforce2_access_channel(adap, addr, flags, read_write, command,
+                                      size, data, 0x04);
+}
+
+static s32 nforce2_access_virt3(struct i2c_adapter *adap, u16 addr,
+                                unsigned short flags, char read_write,
+                                u8 command, int size,
+                                union i2c_smbus_data *data)
+{
+        /* CPU2: channel 3 enabled */
+        return nforce2_access_channel(adap, addr, flags, read_write, command,
+                                      size, data, 0x08);
+}
+
+static s32 nforce2_access_virt4(struct i2c_adapter *adap, u16 addr,
+                                unsigned short flags, char read_write,
+                                u8 command, int size,
+                                union i2c_smbus_data *data)
+{
+        /* CPU3: channel 4 enabled */
+        return nforce2_access_channel(adap, addr, flags, read_write, command,
+                                      size, data, 0x10);
+}
+
+static int __init nforce2_s4985_init(void)
+{
+        int i, error;
+        union i2c_smbus_data ioconfig;
+
+        /* Unregister physical bus */
+        if (!nforce2_smbus)
+                return -ENODEV;
+        error = i2c_del_adapter(nforce2_smbus);
+        if (error) {
+                dev_err(&nforce2_smbus->dev, "Physical bus removal failed\n");
+                goto ERROR0;
+        }
+
+        printk(KERN_INFO "Enabling SMBus multiplexing for Tyan S4985\n");
+        /* Define the 5 virtual adapters and algorithms structures */
+        s4985_adapter = kzalloc(5 * sizeof(struct i2c_adapter), GFP_KERNEL);
+        if (!s4985_adapter) {
+                error = -ENOMEM;
+                goto ERROR1;
+        }
+        s4985_algo = kzalloc(5 * sizeof(struct i2c_algorithm), GFP_KERNEL);
+        if (!s4985_algo) {
+                error = -ENOMEM;
+                goto ERROR2;
+        }
+
+        /* Fill in the new structures */
+        s4985_algo[0] = *(nforce2_smbus->algo);
+        s4985_algo[0].smbus_xfer = nforce2_access_virt0;
+        s4985_adapter[0] = *nforce2_smbus;
+        s4985_adapter[0].algo = s4985_algo;
+        s4985_adapter[0].dev.parent = nforce2_smbus->dev.parent;
+        for (i = 1; i < 5; i++) {
+                s4985_algo[i] = *(nforce2_smbus->algo);
+                s4985_adapter[i] = *nforce2_smbus;
+                snprintf(s4985_adapter[i].name, sizeof(s4985_adapter[i].name),
+                         "SMBus nForce2 adapter (CPU%d)", i - 1);
+                s4985_adapter[i].algo = s4985_algo + i;
+                s4985_adapter[i].dev.parent = nforce2_smbus->dev.parent;
+        }
+        s4985_algo[1].smbus_xfer = nforce2_access_virt1;
+        s4985_algo[2].smbus_xfer = nforce2_access_virt2;
+        s4985_algo[3].smbus_xfer = nforce2_access_virt3;
+        s4985_algo[4].smbus_xfer = nforce2_access_virt4;
+
+        /* Configure the PCA9556 multiplexer */
+        ioconfig.byte = 0x00; /* All I/O to output mode */
+        error = nforce2_smbus->algo->smbus_xfer(nforce2_smbus, 0x18, 0,
+                                                I2C_SMBUS_WRITE, 0x03,
+                                                I2C_SMBUS_BYTE_DATA, &ioconfig);
+        if (error) {
+                dev_err(&nforce2_smbus->dev, "PCA9556 configuration failed\n");
+                error = -EIO;
+                goto ERROR3;
+        }
+
+        /* Register virtual adapters */
+        for (i = 0; i < 5; i++) {
+                error = i2c_add_adapter(s4985_adapter + i);
+                if (error) {
+                        dev_err(&nforce2_smbus->dev,
+                                "Virtual adapter %d registration "
+                                "failed, module not inserted\n", i);
+                        for (i--; i >= 0; i--)
+                                i2c_del_adapter(s4985_adapter + i);
+                        goto ERROR3;
+                }
+        }
+
+        return 0;
+
+ERROR3:
+        kfree(s4985_algo);
+        s4985_algo = NULL;
+ERROR2:
+        kfree(s4985_adapter);
+        s4985_adapter = NULL;
+ERROR1:
+        /* Restore physical bus */
+        i2c_add_adapter(nforce2_smbus);
+ERROR0:
+        return error;
+}
+
+static void __exit nforce2_s4985_exit(void)
+{
+        if (s4985_adapter) {
+                int i;
+
+                for (i = 0; i < 5; i++)
+                        i2c_del_adapter(s4985_adapter+i);
+                kfree(s4985_adapter);
+                s4985_adapter = NULL;
+        }
+        kfree(s4985_algo);
+        s4985_algo = NULL;
+
+        /* Restore physical bus */
+        if (i2c_add_adapter(nforce2_smbus))
+                dev_err(&nforce2_smbus->dev, "Physical bus restoration "
+                        "failed\n");
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("S4985 SMBus multiplexing");
+MODULE_LICENSE("GPL");
+
+module_init(nforce2_s4985_init);
+module_exit(nforce2_s4985_exit);
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 43c9f8df950..3b19bc41a60 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -51,6 +51,7 @@
 #include <linux/i2c.h>
 #include <linux/delay.h>
 #include <linux/dmi.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 MODULE_LICENSE("GPL");
@@ -124,6 +125,20 @@ static struct dmi_system_id __devinitdata nforce2_dmi_blacklist2[] = {
 
 static struct pci_driver nforce2_driver;
 
+/* For multiplexing support, we need a global reference to the 1st
+   SMBus channel */
+#if defined CONFIG_I2C_NFORCE2_S4985 || defined CONFIG_I2C_NFORCE2_S4985_MODULE
+struct i2c_adapter *nforce2_smbus;
+EXPORT_SYMBOL_GPL(nforce2_smbus);
+
+static void nforce2_set_reference(struct i2c_adapter *adap)
+{
+        nforce2_smbus = adap;
+}
+#else
+static inline void nforce2_set_reference(struct i2c_adapter *adap) { }
+#endif
+
 static void nforce2_abort(struct i2c_adapter *adap)
 {
         struct nforce2_smbus *smbus = adap->algo_data;
@@ -158,16 +173,16 @@ static int nforce2_check_status(struct i2c_adapter *adap)
                 dev_dbg(&adap->dev, "SMBus Timeout!\n");
                 if (smbus->can_abort)
                         nforce2_abort(adap);
-                return -1;
+                return -ETIMEDOUT;
         }
         if (!(temp & NVIDIA_SMB_STS_DONE) || (temp & NVIDIA_SMB_STS_STATUS)) {
                 dev_dbg(&adap->dev, "Transaction failed (0x%02x)!\n", temp);
-                return -1;
+                return -EIO;
         }
         return 0;
 }
 
-/* Return -1 on error */
+/* Return negative errno on error */
 static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
                 unsigned short flags, char read_write,
                 u8 command, int size, union i2c_smbus_data * data)
@@ -175,7 +190,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
         struct nforce2_smbus *smbus = adap->algo_data;
         unsigned char protocol, pec;
         u8 len;
-        int i;
+        int i, status;
 
         protocol = (read_write == I2C_SMBUS_READ) ? NVIDIA_SMB_PRTCL_READ :
                 NVIDIA_SMB_PRTCL_WRITE;
@@ -219,7 +234,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
                                                 "Transaction failed "
                                                 "(requested block size: %d)\n",
                                                 len);
-                                        return -1;
+                                        return -EINVAL;
                                 }
                                 outb_p(len, NVIDIA_SMB_BCNT);
                                 for (i = 0; i < I2C_SMBUS_BLOCK_MAX; i++)
@@ -231,14 +246,15 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 
                 default:
                         dev_err(&adap->dev, "Unsupported transaction %d\n", size);
-                        return -1;
+                        return -EOPNOTSUPP;
         }
 
         outb_p((addr & 0x7f) << 1, NVIDIA_SMB_ADDR);
         outb_p(protocol, NVIDIA_SMB_PRTCL);
 
-        if (nforce2_check_status(adap))
-                return -1;
+        status = nforce2_check_status(adap);
+        if (status)
+                return status;
 
         if (read_write == I2C_SMBUS_WRITE)
                 return 0;
@@ -260,7 +276,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
                                 dev_err(&adap->dev, "Transaction failed "
                                         "(received block size: 0x%02x)\n",
                                         len);
-                                return -1;
+                                return -EPROTO;
                         }
                         for (i = 0; i < len; i++)
                                 data->block[i+1] = inb_p(NVIDIA_SMB_DATA + i);
@@ -321,21 +337,26 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
                     != PCIBIOS_SUCCESSFUL) {
                         dev_err(&dev->dev, "Error reading PCI config for %s\n",
                                 name);
-                        return -1;
+                        return -EIO;
                 }
 
                 smbus->base = iobase & PCI_BASE_ADDRESS_IO_MASK;
                 smbus->size = 64;
         }
 
+        error = acpi_check_region(smbus->base, smbus->size,
+                                  nforce2_driver.name);
+        if (error)
+                return -1;
+
         if (!request_region(smbus->base, smbus->size, nforce2_driver.name)) {
                 dev_err(&smbus->adapter.dev, "Error requesting region %02x .. %02X for %s\n",
                         smbus->base, smbus->base+smbus->size-1, name);
-                return -1;
+                return -EBUSY;
         }
         smbus->adapter.owner = THIS_MODULE;
         smbus->adapter.id = I2C_HW_SMBUS_NFORCE2;
-        smbus->adapter.class = I2C_CLASS_HWMON;
+        smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         smbus->adapter.algo = &smbus_algorithm;
         smbus->adapter.algo_data = smbus;
         smbus->adapter.dev.parent = &dev->dev;
@@ -346,7 +367,7 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
         if (error) {
                 dev_err(&smbus->adapter.dev, "Failed to register adapter.\n");
                 release_region(smbus->base, smbus->size);
-                return -1;
+                return error;
         }
         dev_info(&smbus->adapter.dev, "nForce2 SMBus adapter at %#x\n", smbus->base);
         return 0;
@@ -398,6 +419,7 @@ static int __devinit nforce2_probe(struct pci_dev *dev, const struct pci_device_
                 return -ENODEV;
         }
 
+        nforce2_set_reference(&smbuses[0].adapter);
         return 0;
 }
 
@@ -406,6 +428,7 @@ static void __devexit nforce2_remove(struct pci_dev *dev)
 {
         struct nforce2_smbus *smbuses = (void*) pci_get_drvdata(dev);
 
+        nforce2_set_reference(NULL);
         if (smbuses[0].base) {
                 i2c_del_adapter(&smbuses[0].adapter);
                 release_region(smbuses[0].base, smbuses[0].size);
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index f145692cbb7..e5193bf7548 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -29,6 +29,7 @@ struct ocores_i2c {
         int pos;
         int nmsgs;
         int state; /* see STATE_ */
+        int clock_khz;
 };
 
 /* registers */
@@ -173,8 +174,7 @@ static int ocores_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
                 return -ETIMEDOUT;
 }
 
-static void ocores_init(struct ocores_i2c *i2c,
-                        struct ocores_i2c_platform_data *pdata)
+static void ocores_init(struct ocores_i2c *i2c)
 {
         int prescale;
         u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL);
@@ -182,7 +182,7 @@ static void ocores_init(struct ocores_i2c *i2c,
         /* make sure the device is disabled */
         oc_setreg(i2c, OCI2C_CONTROL, ctrl & ~(OCI2C_CTRL_EN|OCI2C_CTRL_IEN));
 
-        prescale = (pdata->clock_khz / (5*100)) - 1;
+        prescale = (i2c->clock_khz / (5*100)) - 1;
         oc_setreg(i2c, OCI2C_PRELOW, prescale & 0xff);
         oc_setreg(i2c, OCI2C_PREHIGH, prescale >> 8);
 
@@ -205,7 +205,7 @@ static const struct i2c_algorithm ocores_algorithm = {
 static struct i2c_adapter ocores_adapter = {
         .owner          = THIS_MODULE,
         .name           = "i2c-ocores",
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &ocores_algorithm,
 };
 
@@ -248,7 +248,8 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
         }
 
         i2c->regstep = pdata->regstep;
-        ocores_init(i2c, pdata);
+        i2c->clock_khz = pdata->clock_khz;
+        ocores_init(i2c);
 
         init_waitqueue_head(&i2c->wait);
         ret = request_irq(res2->start, ocores_isr, 0, pdev->name, i2c);
@@ -312,13 +313,40 @@ static int __devexit ocores_i2c_remove(struct platform_device* pdev)
         return 0;
 }
 
+#ifdef CONFIG_PM
+static int ocores_i2c_suspend(struct platform_device *pdev, pm_message_t state)
+{
+        struct ocores_i2c *i2c = platform_get_drvdata(pdev);
+        u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL);
+
+        /* make sure the device is disabled */
+        oc_setreg(i2c, OCI2C_CONTROL, ctrl & ~(OCI2C_CTRL_EN|OCI2C_CTRL_IEN));
+
+        return 0;
+}
+
+static int ocores_i2c_resume(struct platform_device *pdev)
+{
+        struct ocores_i2c *i2c = platform_get_drvdata(pdev);
+
+        ocores_init(i2c);
+
+        return 0;
+}
+#else
+#define ocores_i2c_suspend      NULL
+#define ocores_i2c_resume       NULL
+#endif
+
 /* work with hotplug and coldplug */
 MODULE_ALIAS("platform:ocores-i2c");
 
 static struct platform_driver ocores_i2c_driver = {
-        .probe  = ocores_i2c_probe,
-        .remove = __devexit_p(ocores_i2c_remove),
-        .driver = {
+        .probe   = ocores_i2c_probe,
+        .remove  = __devexit_p(ocores_i2c_remove),
+        .suspend = ocores_i2c_suspend,
+        .resume  = ocores_i2c_resume,
+        .driver  = {
                 .owner = THIS_MODULE,
                 .name = "ocores-i2c",
         },
diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c
index 1603c81e39d..adf0fbb902f 100644
--- a/drivers/i2c/busses/i2c-pasemi.c
+++ b/drivers/i2c/busses/i2c-pasemi.c
@@ -365,7 +365,7 @@ static int __devinit pasemi_smb_probe(struct pci_dev *dev,
         smbus->adapter.owner = THIS_MODULE;
         snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
                  "PA Semi SMBus adapter at 0x%lx", smbus->base);
-        smbus->adapter.class = I2C_CLASS_HWMON;
+        smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         smbus->adapter.algo = &smbus_algorithm;
         smbus->adapter.algo_data = smbus;
         smbus->adapter.nr = PCI_FUNC(dev->devfn);
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index 9d75f51e8f0..6bb15ad0a6b 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -163,7 +163,7 @@ static int __devinit i2c_pca_pf_probe(struct platform_device *pdev)
 
         i2c->reg_base = ioremap(res->start, res_len(res));
         if (!i2c->reg_base) {
-                ret = -EIO;
+                ret = -ENOMEM;
                 goto e_remap;
         }
         i2c->io_base = res->start;
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index ac916596858..eaa9b387543 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -1,6 +1,4 @@
 /*
-    piix4.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl> and
     Philip Edelbrock <phil@netroedge.com>
 
@@ -39,16 +37,10 @@
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/dmi.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 
-struct sd {
-        const unsigned short mfr;
-        const unsigned short dev;
-        const unsigned char fn;
-        const char *name;
-};
-
 /* PIIX4 SMBus address offsets */
 #define SMBHSTSTS       (0 + piix4_smba)
 #define SMBHSLVSTS      (1 + piix4_smba)
@@ -101,8 +93,6 @@ MODULE_PARM_DESC(force_addr,
                  "Forcibly enable the PIIX4 at the given address. "
                  "EXTREMELY DANGEROUS!");
 
-static int piix4_transaction(void);
-
 static unsigned short piix4_smba;
 static int srvrworks_csb5_delay;
 static struct pci_driver piix4_driver;
@@ -141,8 +131,6 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
 {
         unsigned char temp;
 
-        dev_info(&PIIX4_dev->dev, "Found %s device\n", pci_name(PIIX4_dev));
-
         if ((PIIX4_dev->vendor == PCI_VENDOR_ID_SERVERWORKS) &&
             (PIIX4_dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5))
                 srvrworks_csb5_delay = 1;
@@ -172,17 +160,20 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
                 pci_read_config_word(PIIX4_dev, SMBBA, &piix4_smba);
                 piix4_smba &= 0xfff0;
                 if(piix4_smba == 0) {
-                        dev_err(&PIIX4_dev->dev, "SMB base address "
+                        dev_err(&PIIX4_dev->dev, "SMBus base address "
                                 "uninitialized - upgrade BIOS or use "
                                 "force_addr=0xaddr\n");
                         return -ENODEV;
                 }
         }
 
+        if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name))
+                return -EBUSY;
+
         if (!request_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) {
-                dev_err(&PIIX4_dev->dev, "SMB region 0x%x already in use!\n",
+                dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n",
                         piix4_smba);
-                return -ENODEV;
+                return -EBUSY;
         }
 
         pci_read_config_byte(PIIX4_dev, SMBHSTCFG, &temp);
@@ -228,13 +219,13 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
                         "(or code out of date)!\n");
 
         pci_read_config_byte(PIIX4_dev, SMBREV, &temp);
-        dev_dbg(&PIIX4_dev->dev, "SMBREV = 0x%X\n", temp);
-        dev_dbg(&PIIX4_dev->dev, "SMBA = 0x%X\n", piix4_smba);
+        dev_info(&PIIX4_dev->dev,
+                 "SMBus Host Controller at 0x%x, revision %d\n",
+                 piix4_smba, temp);
 
         return 0;
 }
 
-/* Another internally used function */
 static int piix4_transaction(void)
 {
         int temp;
@@ -253,7 +244,7 @@ static int piix4_transaction(void)
                 outb_p(temp, SMBHSTSTS);
                 if ((temp = inb_p(SMBHSTSTS)) != 0x00) {
                         dev_err(&piix4_adapter.dev, "Failed! (%02x)\n", temp);
-                        return -1;
+                        return -EBUSY;
                 } else {
                         dev_dbg(&piix4_adapter.dev, "Successful!\n");
                 }
@@ -275,23 +266,23 @@ static int piix4_transaction(void)
         /* If the SMBus is still busy, we give up */
         if (timeout >= MAX_TIMEOUT) {
                 dev_err(&piix4_adapter.dev, "SMBus Timeout!\n");
-                result = -1;
+                result = -ETIMEDOUT;
         }
 
         if (temp & 0x10) {
-                result = -1;
+                result = -EIO;
                 dev_err(&piix4_adapter.dev, "Error: Failed bus transaction\n");
         }
 
         if (temp & 0x08) {
-                result = -1;
+                result = -EIO;
                 dev_dbg(&piix4_adapter.dev, "Bus collision! SMBus may be "
                         "locked until next hard reset. (sorry!)\n");
                 /* Clock stops and slave is stuck in mid-transmission */
         }
 
         if (temp & 0x04) {
-                result = -1;
+                result = -ENXIO;
                 dev_dbg(&piix4_adapter.dev, "Error: no response!\n");
         }
 
@@ -309,31 +300,29 @@ static int piix4_transaction(void)
         return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
                  unsigned short flags, char read_write,
                  u8 command, int size, union i2c_smbus_data * data)
 {
         int i, len;
+        int status;
 
         switch (size) {
-        case I2C_SMBUS_PROC_CALL:
-                dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-                return -1;
         case I2C_SMBUS_QUICK:
-                outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+                outb_p((addr << 1) | read_write,
                        SMBHSTADD);
                 size = PIIX4_QUICK;
                 break;
         case I2C_SMBUS_BYTE:
-                outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+                outb_p((addr << 1) | read_write,
                        SMBHSTADD);
                 if (read_write == I2C_SMBUS_WRITE)
                         outb_p(command, SMBHSTCMD);
                 size = PIIX4_BYTE;
                 break;
         case I2C_SMBUS_BYTE_DATA:
-                outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+                outb_p((addr << 1) | read_write,
                        SMBHSTADD);
                 outb_p(command, SMBHSTCMD);
                 if (read_write == I2C_SMBUS_WRITE)
@@ -341,7 +330,7 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
                 size = PIIX4_BYTE_DATA;
                 break;
         case I2C_SMBUS_WORD_DATA:
-                outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+                outb_p((addr << 1) | read_write,
                        SMBHSTADD);
                 outb_p(command, SMBHSTCMD);
                 if (read_write == I2C_SMBUS_WRITE) {
@@ -351,15 +340,13 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
                 size = PIIX4_WORD_DATA;
                 break;
         case I2C_SMBUS_BLOCK_DATA:
-                outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
+                outb_p((addr << 1) | read_write,
                        SMBHSTADD);
                 outb_p(command, SMBHSTCMD);
                 if (read_write == I2C_SMBUS_WRITE) {
                         len = data->block[0];
-                        if (len < 0)
-                                len = 0;
-                        if (len > 32)
-                                len = 32;
+                        if (len == 0 || len > I2C_SMBUS_BLOCK_MAX)
+                                return -EINVAL;
                         outb_p(len, SMBHSTDAT0);
                         i = inb_p(SMBHSTCNT);   /* Reset SMBBLKDAT */
                         for (i = 1; i <= len; i++)
@@ -367,12 +354,16 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
                 }
                 size = PIIX4_BLOCK_DATA;
                 break;
+        default:
+                dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+                return -EOPNOTSUPP;
         }
 
         outb_p((size & 0x1C) + (ENABLE_INT9 & 1), SMBHSTCNT);
 
-        if (piix4_transaction())        /* Error in transaction */
-                return -1;
+        status = piix4_transaction();
+        if (status)
+                return status;
 
         if ((read_write == I2C_SMBUS_WRITE) || (size == PIIX4_QUICK))
                 return 0;
@@ -388,6 +379,8 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
                 break;
         case PIIX4_BLOCK_DATA:
                 data->block[0] = inb_p(SMBHSTDAT0);
+                if (data->block[0] == 0 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
+                        return -EPROTO;
                 i = inb_p(SMBHSTCNT);   /* Reset SMBBLKDAT */
                 for (i = 1; i <= data->block[0]; i++)
                         data->block[i] = inb_p(SMBBLKDAT);
@@ -411,7 +404,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter piix4_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_PIIX4,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-pmcmsp.c b/drivers/i2c/busses/i2c-pmcmsp.c
index 63b3e2c11cf..dcf2045b522 100644
--- a/drivers/i2c/busses/i2c-pmcmsp.c
+++ b/drivers/i2c/busses/i2c-pmcmsp.c
@@ -622,7 +622,7 @@ static struct i2c_algorithm pmcmsptwi_algo = {
 
 static struct i2c_adapter pmcmsptwi_adapter = {
         .owner          = THIS_MODULE,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &pmcmsptwi_algo,
         .name           = DRV_NAME,
 };
diff --git a/drivers/i2c/busses/i2c-prosavage.c b/drivers/i2c/busses/i2c-prosavage.c
deleted file mode 100644
index 07c1f1e27df..00000000000
--- a/drivers/i2c/busses/i2c-prosavage.c
+++ /dev/null
@@ -1,325 +0,0 @@
-/*
- *    kernel/busses/i2c-prosavage.c
- *
- *    i2c bus driver for S3/VIA 8365/8375 graphics processor.
- *    Copyright (c) 2003 Henk Vergonet <henk@god.dyndns.org>
- *    Based on code written by:
- *      Frodo Looijaard <frodol@dds.nl>,
- *      Philip Edelbrock <phil@netroedge.com>,
- *      Ralph Metzler <rjkm@thp.uni-koeln.de>, and
- *      Mark D. Studebaker <mdsxyz123@yahoo.com>
- *      Simon Vogl
- *      and others
- *
- *    Please read the lm_sensors documentation for details on use.
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-/*  18-05-2003 HVE - created
- *  14-06-2003 HVE - adapted for lm_sensors2
- *  17-06-2003 HVE - linux 2.5.xx compatible
- *  18-06-2003 HVE - codingstyle
- *  21-06-2003 HVE - compatibility lm_sensors2 and linux 2.5.xx
- *                   codingstyle, mmio enabled
- *
- *  This driver interfaces to the I2C bus of the VIA north bridge embedded
- *  ProSavage4/8 devices. Usefull for gaining access to the TV Encoder chips.
- *
- *  Graphics cores:
- *   S3/VIA KM266/VT8375 aka ProSavage8
- *   S3/VIA KM133/VT8365 aka Savage4
- *
- *  Two serial busses are implemented:
- *   SERIAL1 - I2C serial communications interface
- *   SERIAL2 - DDC2 monitor communications interface
- *
- *  Tested on a FX41 mainboard, see http://www.shuttle.com
- * 
- *
- *  TODO:
- *  - integration with prosavage framebuffer device
- *    (Additional documentation needed :(
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include <asm/io.h>
-
-/*
- * driver configuration
- */
-#define MAX_BUSSES      2
-
-struct s_i2c_bus {
-        void __iomem *mmvga;
-        int     i2c_reg;
-        int     adap_ok;
-        struct i2c_adapter              adap;
-        struct i2c_algo_bit_data        algo;
-};
-
-struct s_i2c_chip {
-        void __iomem *mmio;
-        struct s_i2c_bus        i2c_bus[MAX_BUSSES];
-};
-
-
-/*
- * i2c configuration
- */
-#define CYCLE_DELAY     10
-#define TIMEOUT         (HZ / 2)
-
-
-/* 
- * S3/VIA 8365/8375 registers
- */
-#define VGA_CR_IX       0x3d4
-#define VGA_CR_DATA     0x3d5
-
-#define CR_SERIAL1      0xa0    /* I2C serial communications interface */
-#define MM_SERIAL1      0xff20
-#define CR_SERIAL2      0xb1    /* DDC2 monitor communications interface */
-
-/* based on vt8365 documentation */
-#define I2C_ENAB        0x10
-#define I2C_SCL_OUT     0x01
-#define I2C_SDA_OUT     0x02
-#define I2C_SCL_IN      0x04
-#define I2C_SDA_IN      0x08
-
-#define SET_CR_IX(p, val)       writeb((val), (p)->mmvga + VGA_CR_IX)
-#define SET_CR_DATA(p, val)     writeb((val), (p)->mmvga + VGA_CR_DATA)
-#define GET_CR_DATA(p)          readb((p)->mmvga + VGA_CR_DATA)
-
-
-/*
- * Serial bus line handling
- *
- * serial communications register as parameter in private data
- *
- * TODO: locks with other code sections accessing video registers?
- */
-static void bit_s3via_setscl(void *bus, int val)
-{
-        struct s_i2c_bus *p = (struct s_i2c_bus *)bus;
-        unsigned int r;
-
-        SET_CR_IX(p, p->i2c_reg);
-        r = GET_CR_DATA(p);
-        r |= I2C_ENAB;
-        if (val) {
-                r |= I2C_SCL_OUT;
-        } else {
-                r &= ~I2C_SCL_OUT;
-        }
-        SET_CR_DATA(p, r);
-}
-
-static void bit_s3via_setsda(void *bus, int val)
-{
-        struct s_i2c_bus *p = (struct s_i2c_bus *)bus;
-        unsigned int r;
-        
-        SET_CR_IX(p, p->i2c_reg);
-        r = GET_CR_DATA(p);
-        r |= I2C_ENAB;
-        if (val) {
-                r |= I2C_SDA_OUT;
-        } else {
-                r &= ~I2C_SDA_OUT;
-        }
-        SET_CR_DATA(p, r);
-}
-
-static int bit_s3via_getscl(void *bus)
-{
-        struct s_i2c_bus *p = (struct s_i2c_bus *)bus;
-
-        SET_CR_IX(p, p->i2c_reg);
-        return (0 != (GET_CR_DATA(p) & I2C_SCL_IN));
-}
-
-static int bit_s3via_getsda(void *bus)
-{
-        struct s_i2c_bus *p = (struct s_i2c_bus *)bus;
-
-        SET_CR_IX(p, p->i2c_reg);
-        return (0 != (GET_CR_DATA(p) & I2C_SDA_IN));
-}
-
-
-/*
- * adapter initialisation
- */
-static int i2c_register_bus(struct pci_dev *dev, struct s_i2c_bus *p, void __iomem *mmvga, u32 i2c_reg)
-{
-        int ret;
-        p->adap.owner     = THIS_MODULE;
-        p->adap.id        = I2C_HW_B_S3VIA;
-        p->adap.algo_data = &p->algo;
-        p->adap.dev.parent = &dev->dev;
-        p->algo.setsda    = bit_s3via_setsda;
-        p->algo.setscl    = bit_s3via_setscl;
-        p->algo.getsda    = bit_s3via_getsda;
-        p->algo.getscl    = bit_s3via_getscl;
-        p->algo.udelay    = CYCLE_DELAY;
-        p->algo.timeout   = TIMEOUT;
-        p->algo.data      = p;
-        p->mmvga          = mmvga;
-        p->i2c_reg        = i2c_reg;
-    
-        ret = i2c_bit_add_bus(&p->adap);
-        if (ret) {
-                return ret;
-        }
-
-        p->adap_ok = 1;
-        return 0;
-}
-
-
-/*
- * Cleanup stuff
- */
-static void prosavage_remove(struct pci_dev *dev)
-{
-        struct s_i2c_chip *chip;
-        int i, ret;
-
-        chip = (struct s_i2c_chip *)pci_get_drvdata(dev);
-
-        if (!chip) {
-                return;
-        }
-        for (i = MAX_BUSSES - 1; i >= 0; i--) {
-                if (chip->i2c_bus[i].adap_ok == 0)
-                        continue;
-
-                ret = i2c_del_adapter(&chip->i2c_bus[i].adap);
-                if (ret) {
-                        dev_err(&dev->dev, "%s not removed\n",
-                                chip->i2c_bus[i].adap.name);
-                }
-        }
-        if (chip->mmio) {
-                iounmap(chip->mmio);
-        }
-        kfree(chip);
-}
-
-
-/*
- * Detect chip and initialize it
- */
-static int __devinit prosavage_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-        int ret;
-        unsigned long base, len;
-        struct s_i2c_chip *chip;
-        struct s_i2c_bus  *bus;
-
-        pci_set_drvdata(dev, kzalloc(sizeof(struct s_i2c_chip), GFP_KERNEL));
-        chip = (struct s_i2c_chip *)pci_get_drvdata(dev);
-        if (chip == NULL) {
-                return -ENOMEM;
-        }
-
-        base = dev->resource[0].start & PCI_BASE_ADDRESS_MEM_MASK;
-        len  = dev->resource[0].end - base + 1;
-        chip->mmio = ioremap_nocache(base, len);
-
-        if (chip->mmio == NULL) {
-                dev_err(&dev->dev, "ioremap failed\n");
-                prosavage_remove(dev);
-                return -ENODEV;
-        }
-
-
-        /*
-         * Chip initialisation
-         */
-        /* Unlock Extended IO Space ??? */
-
-
-        /*
-         * i2c bus registration
-         */
-        bus = &chip->i2c_bus[0];
-        snprintf(bus->adap.name, sizeof(bus->adap.name),
-                "ProSavage I2C bus at %02x:%02x.%x",
-                dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-        ret = i2c_register_bus(dev, bus, chip->mmio + 0x8000, CR_SERIAL1);
-        if (ret) {
-                goto err_adap;
-        }
-        /*
-         * ddc bus registration
-         */
-        bus = &chip->i2c_bus[1];
-        snprintf(bus->adap.name, sizeof(bus->adap.name),
-                "ProSavage DDC bus at %02x:%02x.%x",
-                dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-        ret = i2c_register_bus(dev, bus, chip->mmio + 0x8000, CR_SERIAL2);
-        if (ret) {
-                goto err_adap;
-        }
-        return 0;
-err_adap:
-        dev_err(&dev->dev, "%s failed\n", bus->adap.name);
-        prosavage_remove(dev);
-        return ret;
-}
-
-
-/*
- * Data for PCI driver interface
- */
-static struct pci_device_id prosavage_pci_tbl[] = {
-        { PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_SAVAGE4) },
-        { PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_PROSAVAGE8) },
-        { 0, },
-};
-
-MODULE_DEVICE_TABLE (pci, prosavage_pci_tbl);
-
-static struct pci_driver prosavage_driver = {
-        .name           =       "prosavage_smbus",
-        .id_table       =       prosavage_pci_tbl,
-        .probe          =       prosavage_probe,
-        .remove         =       prosavage_remove,
-};
-
-static int __init i2c_prosavage_init(void)
-{
-        return pci_register_driver(&prosavage_driver);
-}
-
-static void __exit i2c_prosavage_exit(void)
-{
-        pci_unregister_driver(&prosavage_driver);
-}
-
-MODULE_DEVICE_TABLE(pci, prosavage_pci_tbl);
-MODULE_AUTHOR("Henk Vergonet");
-MODULE_DESCRIPTION("ProSavage VIA 8365/8375 smbus driver");
-MODULE_LICENSE("GPL");
-
-module_init (i2c_prosavage_init);
-module_exit (i2c_prosavage_exit);
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index dde6ce963a1..af9e6034d7f 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -1104,5 +1104,5 @@ static void __exit i2c_adap_pxa_exit(void)
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:pxa2xx-i2c");
 
-module_init(i2c_adap_pxa_init);
+subsys_initcall(i2c_adap_pxa_init);
 module_exit(i2c_adap_pxa_exit);
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 9e8c875437b..007390ad981 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -590,7 +590,7 @@ static struct s3c24xx_i2c s3c24xx_i2c = {
                 .owner                  = THIS_MODULE,
                 .algo                   = &s3c24xx_i2c_algorithm,
                 .retries                = 2,
-                .class                  = I2C_CLASS_HWMON,
+                .class                  = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         },
 };
 
diff --git a/drivers/i2c/busses/i2c-savage4.c b/drivers/i2c/busses/i2c-savage4.c
deleted file mode 100644
index 8adf4abaa03..00000000000
--- a/drivers/i2c/busses/i2c-savage4.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
-    i2c-savage4.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-    Copyright (C) 1998-2003  The LM Sensors Team
-    Alexander Wold <awold@bigfoot.com>
-    Mark D. Studebaker <mdsxyz123@yahoo.com>
-    
-    Based on i2c-voodoo3.c.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-/* This interfaces to the I2C bus of the Savage4 to gain access to
-   the BT869 and possibly other I2C devices. The DDC bus is not
-   yet supported because its register is not memory-mapped.
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include <asm/io.h>
-
-/* device IDs */
-#define PCI_CHIP_SAVAGE4        0x8A22
-#define PCI_CHIP_SAVAGE2000     0x9102
-
-#define REG                     0xff20  /* Serial Port 1 Register */
-
-/* bit locations in the register */
-#define I2C_ENAB                0x00000020
-#define I2C_SCL_OUT             0x00000001
-#define I2C_SDA_OUT             0x00000002
-#define I2C_SCL_IN              0x00000008
-#define I2C_SDA_IN              0x00000010
-
-/* delays */
-#define CYCLE_DELAY             10
-#define TIMEOUT                 (HZ / 2)
-
-
-static void __iomem *ioaddr;
-
-/* The sav GPIO registers don't have individual masks for each bit
-   so we always have to read before writing. */
-
-static void bit_savi2c_setscl(void *data, int val)
-{
-        unsigned int r;
-        r = readl(ioaddr + REG);
-        if(val)
-                r |= I2C_SCL_OUT;
-        else
-                r &= ~I2C_SCL_OUT;
-        writel(r, ioaddr + REG);
-        readl(ioaddr + REG);    /* flush posted write */
-}
-
-static void bit_savi2c_setsda(void *data, int val)
-{
-        unsigned int r;
-        r = readl(ioaddr + REG);
-        if(val)
-                r |= I2C_SDA_OUT;
-        else
-                r &= ~I2C_SDA_OUT;
-        writel(r, ioaddr + REG);
-        readl(ioaddr + REG);    /* flush posted write */
-}
-
-/* The GPIO pins are open drain, so the pins always remain outputs.
-   We rely on the i2c-algo-bit routines to set the pins high before
-   reading the input from other chips. */
-
-static int bit_savi2c_getscl(void *data)
-{
-        return (0 != (readl(ioaddr + REG) & I2C_SCL_IN));
-}
-
-static int bit_savi2c_getsda(void *data)
-{
-        return (0 != (readl(ioaddr + REG) & I2C_SDA_IN));
-}
-
-/* Configures the chip */
-
-static int config_s4(struct pci_dev *dev)
-{
-        unsigned long cadr;
-
-        /* map memory */
-        cadr = dev->resource[0].start;
-        cadr &= PCI_BASE_ADDRESS_MEM_MASK;
-        ioaddr = ioremap_nocache(cadr, 0x0080000);
-        if (ioaddr) {
-                /* writel(0x8160, ioaddr + REG2); */
-                writel(0x00000020, ioaddr + REG);
-                dev_info(&dev->dev, "Using Savage4 at %p\n", ioaddr);
-                return 0;
-        }
-        return -ENODEV;
-}
-
-static struct i2c_algo_bit_data sav_i2c_bit_data = {
-        .setsda         = bit_savi2c_setsda,
-        .setscl         = bit_savi2c_setscl,
-        .getsda         = bit_savi2c_getsda,
-        .getscl         = bit_savi2c_getscl,
-        .udelay         = CYCLE_DELAY,
-        .timeout        = TIMEOUT
-};
-
-static struct i2c_adapter savage4_i2c_adapter = {
-        .owner          = THIS_MODULE,
-        .id             = I2C_HW_B_SAVAGE,
-        .name           = "I2C Savage4 adapter",
-        .algo_data      = &sav_i2c_bit_data,
-};
-
-static struct pci_device_id savage4_ids[] __devinitdata = {
-        { PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4) },
-        { PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000) },
-        { 0, }
-};
-
-MODULE_DEVICE_TABLE (pci, savage4_ids);
-
-static int __devinit savage4_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-        int retval;
-
-        retval = config_s4(dev);
-        if (retval)
-                return retval;
-
-        /* set up the sysfs linkage to our parent device */
-        savage4_i2c_adapter.dev.parent = &dev->dev;
-
-        return i2c_bit_add_bus(&savage4_i2c_adapter);
-}
-
-static void __devexit savage4_remove(struct pci_dev *dev)
-{
-        i2c_del_adapter(&savage4_i2c_adapter);
-        iounmap(ioaddr);
-}
-
-static struct pci_driver savage4_driver = {
-        .name           = "savage4_smbus",
-        .id_table       = savage4_ids,
-        .probe          = savage4_probe,
-        .remove         = __devexit_p(savage4_remove),
-};
-
-static int __init i2c_savage4_init(void)
-{
-        return pci_register_driver(&savage4_driver);
-}
-
-static void __exit i2c_savage4_exit(void)
-{
-        pci_unregister_driver(&savage4_driver);
-}
-
-MODULE_AUTHOR("Alexander Wold <awold@bigfoot.com> "
-                "and Mark D. Studebaker <mdsxyz123@yahoo.com>");
-MODULE_DESCRIPTION("Savage4 I2C/SMBus driver");
-MODULE_LICENSE("GPL");
-
-module_init(i2c_savage4_init);
-module_exit(i2c_savage4_exit);
diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c
index 114634da6c6..4ddefbf238e 100644
--- a/drivers/i2c/busses/i2c-sibyte.c
+++ b/drivers/i2c/busses/i2c-sibyte.c
@@ -143,7 +143,7 @@ static int __init i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed)
         csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ));
         csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL));
 
-        return i2c_add_adapter(i2c_adap);
+        return i2c_add_numbered_adapter(i2c_adap);
 }
 
 
@@ -156,17 +156,19 @@ static struct i2c_adapter sibyte_board_adapter[2] = {
         {
                 .owner          = THIS_MODULE,
                 .id             = I2C_HW_SIBYTE,
-                .class          = I2C_CLASS_HWMON,
+                .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
                 .algo           = NULL,
                 .algo_data      = &sibyte_board_data[0],
+                .nr             = 0,
                 .name           = "SiByte SMBus 0",
         },
         {
                 .owner          = THIS_MODULE,
                 .id             = I2C_HW_SIBYTE,
-                .class          = I2C_CLASS_HWMON,
+                .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
                 .algo           = NULL,
                 .algo_data      = &sibyte_board_data[1],
+                .nr             = 1,
                 .name           = "SiByte SMBus 1",
         },
 };
diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c
index 9ca8f9155f9..dfc2d5eb6a6 100644
--- a/drivers/i2c/busses/i2c-sis5595.c
+++ b/drivers/i2c/busses/i2c-sis5595.c
@@ -1,6 +1,4 @@
 /*
-    sis5595.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl> and
     Philip Edelbrock <phil@netroedge.com>
 
@@ -62,6 +60,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static int blacklist[] = {
@@ -174,6 +173,11 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev)
 
         /* NB: We grab just the two SMBus registers here, but this may still
          * interfere with ACPI :-(  */
+        retval = acpi_check_region(sis5595_base + SMB_INDEX, 2,
+                                   sis5595_driver.name);
+        if (retval)
+                return retval;
+
         if (!request_region(sis5595_base + SMB_INDEX, 2,
                             sis5595_driver.name)) {
                 dev_err(&SIS5595_dev->dev, "SMBus registers 0x%04x-0x%04x already in use!\n",
@@ -236,7 +240,7 @@ static int sis5595_transaction(struct i2c_adapter *adap)
                 sis5595_write(SMB_STS_HI, temp >> 8);
                 if ((temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8)) != 0x00) {
                         dev_dbg(&adap->dev, "Failed! (%02x)\n", temp);
-                        return -1;
+                        return -EBUSY;
                 } else {
                         dev_dbg(&adap->dev, "Successful!\n");
                 }
@@ -254,19 +258,19 @@ static int sis5595_transaction(struct i2c_adapter *adap)
         /* If the SMBus is still busy, we give up */
         if (timeout >= MAX_TIMEOUT) {
                 dev_dbg(&adap->dev, "SMBus Timeout!\n");
-                result = -1;
+                result = -ETIMEDOUT;
         }
 
         if (temp & 0x10) {
                 dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
-                result = -1;
+                result = -ENXIO;
         }
 
         if (temp & 0x20) {
                 dev_err(&adap->dev, "Bus collision! SMBus may be locked until "
                         "next hard reset (or not...)\n");
                 /* Clock stops and slave is stuck in mid-transmission */
-                result = -1;
+                result = -EIO;
         }
 
         temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8);
@@ -282,11 +286,13 @@ static int sis5595_transaction(struct i2c_adapter *adap)
         return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 sis5595_access(struct i2c_adapter *adap, u16 addr,
                           unsigned short flags, char read_write,
                           u8 command, int size, union i2c_smbus_data *data)
 {
+        int status;
+
         switch (size) {
         case I2C_SMBUS_QUICK:
                 sis5595_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
@@ -318,13 +324,14 @@ static s32 sis5595_access(struct i2c_adapter *adap, u16 addr,
                 break;
         default:
                 dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
-                return -1;
+                return -EOPNOTSUPP;
         }
 
         sis5595_write(SMB_CTL_LO, ((size & 0x0E)));
 
-        if (sis5595_transaction(adap))
-                return -1;
+        status = sis5595_transaction(adap);
+        if (status)
+                return status;
 
         if ((size != SIS5595_PROC_CALL) &&
             ((read_write == I2C_SMBUS_WRITE) || (size == SIS5595_QUICK)))
@@ -359,7 +366,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter sis5595_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_SIS5595,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c
index 3765dd7f450..e7c4b790da5 100644
--- a/drivers/i2c/busses/i2c-sis630.c
+++ b/drivers/i2c/busses/i2c-sis630.c
@@ -1,7 +1,4 @@
 /*
-    i2c-sis630.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-
     Copyright (c) 2002,2003 Alexander Malysh <amalysh@web.de>
 
     This program is free software; you can redistribute it and/or modify
@@ -55,6 +52,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* SIS630 SMBus registers */
@@ -134,7 +132,7 @@ static int sis630_transaction_start(struct i2c_adapter *adap, int size, u8 *oldc
 
                 if ((temp = sis630_read(SMB_CNT) & 0x03) != 0x00) {
                         dev_dbg(&adap->dev, "Failed! (%02x)\n", temp);
-                        return -1;
+                        return -EBUSY;
                 } else {
                         dev_dbg(&adap->dev, "Successful!\n");
                 }
@@ -177,17 +175,17 @@ static int sis630_transaction_wait(struct i2c_adapter *adap, int size)
         /* If the SMBus is still busy, we give up */
         if (timeout >= MAX_TIMEOUT) {
                 dev_dbg(&adap->dev, "SMBus Timeout!\n");
-                result = -1;
+                result = -ETIMEDOUT;
         }
 
         if (temp & 0x02) {
                 dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
-                result = -1;
+                result = -ENXIO;
         }
 
         if (temp & 0x04) {
                 dev_err(&adap->dev, "Bus collision!\n");
-                result = -1;
+                result = -EIO;
                 /*
                   TBD: Datasheet say:
                   the software should clear this bit and restart SMBUS operation.
@@ -250,8 +248,10 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat
                         if (i==8 || (len<8 && i==len)) {
                                 dev_dbg(&adap->dev, "start trans len=%d i=%d\n",len ,i);
                                 /* first transaction */
-                                if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock))
-                                        return -1;
+                                rc = sis630_transaction_start(adap,
+                                                SIS630_BLOCK_DATA, &oldclock);
+                                if (rc)
+                                        return rc;
                         }
                         else if ((i-1)%8 == 7 || i==len) {
                                 dev_dbg(&adap->dev, "trans_wait len=%d i=%d\n",len,i);
@@ -264,9 +264,10 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat
                                         */
                                         sis630_write(SMB_STS,0x10);
                                 }
-                                if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) {
+                                rc = sis630_transaction_wait(adap,
+                                                SIS630_BLOCK_DATA);
+                                if (rc) {
                                         dev_dbg(&adap->dev, "trans_wait failed\n");
-                                        rc = -1;
                                         break;
                                 }
                         }
@@ -275,13 +276,14 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat
         else {
                 /* read request */
                 data->block[0] = len = 0;
-                if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock)) {
-                        return -1;
-                }
+                rc = sis630_transaction_start(adap,
+                                SIS630_BLOCK_DATA, &oldclock);
+                if (rc)
+                        return rc;
                 do {
-                        if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) {
+                        rc = sis630_transaction_wait(adap, SIS630_BLOCK_DATA);
+                        if (rc) {
                                 dev_dbg(&adap->dev, "trans_wait failed\n");
-                                rc = -1;
                                 break;
                         }
                         /* if this first transaction then read byte count */
@@ -311,11 +313,13 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat
         return rc;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 sis630_access(struct i2c_adapter *adap, u16 addr,
                          unsigned short flags, char read_write,
                          u8 command, int size, union i2c_smbus_data *data)
 {
+        int status;
+
         switch (size) {
                 case I2C_SMBUS_QUICK:
                         sis630_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
@@ -350,13 +354,14 @@ static s32 sis630_access(struct i2c_adapter *adap, u16 addr,
                         size = SIS630_BLOCK_DATA;
                         return sis630_block_data(adap, data, read_write);
                 default:
-                        printk("Unsupported I2C size\n");
-                        return -1;
-                        break;
+                        dev_warn(&adap->dev, "Unsupported transaction %d\n",
+                                 size);
+                        return -EOPNOTSUPP;
         }
 
-        if (sis630_transaction(adap, size))
-                return -1;
+        status = sis630_transaction(adap, size);
+        if (status)
+                return status;
 
         if ((size != SIS630_PCALL) &&
                 ((read_write == I2C_SMBUS_WRITE) || (size == SIS630_QUICK))) {
@@ -372,9 +377,6 @@ static s32 sis630_access(struct i2c_adapter *adap, u16 addr,
                 case SIS630_WORD_DATA:
                         data->word = sis630_read(SMB_BYTE) + (sis630_read(SMB_BYTE + 1) << 8);
                         break;
-                default:
-                        return -1;
-                        break;
         }
 
         return 0;
@@ -433,6 +435,11 @@ static int sis630_setup(struct pci_dev *sis630_dev)
 
         dev_dbg(&sis630_dev->dev, "ACPI base at 0x%04x\n", acpi_base);
 
+        retval = acpi_check_region(acpi_base + SMB_STS, SIS630_SMB_IOREGION,
+                                   sis630_driver.name);
+        if (retval)
+                goto exit;
+
         /* Everything is happy, let's grab the memory and set things up. */
         if (!request_region(acpi_base + SMB_STS, SIS630_SMB_IOREGION,
                             sis630_driver.name)) {
@@ -458,7 +465,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter sis630_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_SIS630,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
diff --git a/drivers/i2c/busses/i2c-sis96x.c b/drivers/i2c/busses/i2c-sis96x.c
index dc235bb8e24..f1bba639664 100644
--- a/drivers/i2c/busses/i2c-sis96x.c
+++ b/drivers/i2c/busses/i2c-sis96x.c
@@ -1,7 +1,4 @@
 /*
-    sis96x.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
-
     Copyright (c) 2003 Mark M. Hoffman <mhoffman@lightlink.com>
 
     This program is free software; you can redistribute it and/or modify
@@ -40,6 +37,7 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 /* base address register in PCI config space */
@@ -111,7 +109,7 @@ static int sis96x_transaction(int size)
                 /* check it again */
                 if (((temp = sis96x_read(SMB_CNT)) & 0x03) != 0x00) {
                         dev_dbg(&sis96x_adapter.dev, "Failed (0x%02x)\n", temp);
-                        return -1;
+                        return -EBUSY;
                 } else {
                         dev_dbg(&sis96x_adapter.dev, "Successful\n");
                 }
@@ -136,19 +134,19 @@ static int sis96x_transaction(int size)
         /* If the SMBus is still busy, we give up */
         if (timeout >= MAX_TIMEOUT) {
                 dev_dbg(&sis96x_adapter.dev, "SMBus Timeout! (0x%02x)\n", temp);
-                result = -1;
+                result = -ETIMEDOUT;
         }
 
         /* device error - probably missing ACK */
         if (temp & 0x02) {
                 dev_dbg(&sis96x_adapter.dev, "Failed bus transaction!\n");
-                result = -1;
+                result = -ENXIO;
         }
 
         /* bus collision */
         if (temp & 0x04) {
                 dev_dbg(&sis96x_adapter.dev, "Bus collision!\n");
-                result = -1;
+                result = -EIO;
         }
 
         /* Finish up by resetting the bus */
@@ -161,11 +159,12 @@ static int sis96x_transaction(int size)
         return result;
 }
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 sis96x_access(struct i2c_adapter * adap, u16 addr,
                          unsigned short flags, char read_write,
                          u8 command, int size, union i2c_smbus_data * data)
 {
+        int status;
 
         switch (size) {
         case I2C_SMBUS_QUICK:
@@ -200,20 +199,14 @@ static s32 sis96x_access(struct i2c_adapter * adap, u16 addr,
                         SIS96x_PROC_CALL : SIS96x_WORD_DATA);
                 break;
 
-        case I2C_SMBUS_BLOCK_DATA:
-                /* TO DO: */
-                dev_info(&adap->dev, "SMBus block not implemented!\n");
-                return -1;
-                break;
-
         default:
-                dev_info(&adap->dev, "Unsupported I2C size\n");
-                return -1;
-                break;
+                dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
+                return -EOPNOTSUPP;
         }
 
-        if (sis96x_transaction(size))
-                return -1;
+        status = sis96x_transaction(size);
+        if (status)
+                return status;
 
         if ((size != SIS96x_PROC_CALL) &&
                 ((read_write == I2C_SMBUS_WRITE) || (size == SIS96x_QUICK)))
@@ -249,7 +242,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter sis96x_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_SIS96X,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
@@ -286,6 +279,10 @@ static int __devinit sis96x_probe(struct pci_dev *dev,
         dev_info(&dev->dev, "SiS96x SMBus base address: 0x%04x\n",
                         sis96x_smbus_base);
 
+        retval = acpi_check_resource_conflict(&dev->resource[SIS96x_BAR]);
+        if (retval)
+                return retval;
+
         /* Everything is happy, let's grab the memory and set things up. */
         if (!request_region(sis96x_smbus_base, SMB_IOSIZE,
                             sis96x_driver.name)) {
diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c
index d08eeec5391..1b7b2af9403 100644
--- a/drivers/i2c/busses/i2c-stub.c
+++ b/drivers/i2c/busses/i2c-stub.c
@@ -43,7 +43,7 @@ struct stub_chip {
 
 static struct stub_chip *stub_chips;
 
-/* Return -1 on error. */
+/* Return negative errno on error. */
 static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
         char read_write, u8 command, int size, union i2c_smbus_data * data)
 {
@@ -120,7 +120,7 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
 
         default:
                 dev_dbg(&adap->dev, "Unsupported I2C/SMBus command\n");
-                ret = -1;
+                ret = -EOPNOTSUPP;
                 break;
         } /* switch (size) */
 
@@ -140,7 +140,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 
 static struct i2c_adapter stub_adapter = {
         .owner          = THIS_MODULE,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
         .name           = "SMBus stub driver",
 };
diff --git a/drivers/i2c/busses/i2c-taos-evm.c b/drivers/i2c/busses/i2c-taos-evm.c
index de9db49e54d..224aa12ee7c 100644
--- a/drivers/i2c/busses/i2c-taos-evm.c
+++ b/drivers/i2c/busses/i2c-taos-evm.c
@@ -96,9 +96,8 @@ static int taos_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
                         sprintf(p, "$%02X", command);
                 break;
         default:
-                dev_dbg(&adapter->dev, "Unsupported transaction size %d\n",
-                        size);
-                return -EINVAL;
+                dev_warn(&adapter->dev, "Unsupported transaction %d\n", size);
+                return -EOPNOTSUPP;
         }
 
         /* Send the transaction to the TAOS EVM */
diff --git a/drivers/i2c/busses/i2c-via.c b/drivers/i2c/busses/i2c-via.c
index 61716f6b14d..29cef0433f3 100644
--- a/drivers/i2c/busses/i2c-via.c
+++ b/drivers/i2c/busses/i2c-via.c
@@ -1,7 +1,4 @@
 /*
-    i2c-via.c - Part of lm_sensors,  Linux kernel modules
-                for hardware monitoring
-
     i2c Support for Via Technologies 82C586B South Bridge
 
     Copyright (c) 1998, 1999 Kyösti Mälkki <kmalkki@cc.hut.fi>
@@ -87,7 +84,7 @@ static struct i2c_algo_bit_data bit_data = {
 static struct i2c_adapter vt586b_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_B_VIA,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .name           = "VIA i2c",
         .algo_data      = &bit_data,
 };
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 77b13d027f8..862eb352a2d 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -1,6 +1,4 @@
 /*
-    i2c-viapro.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998 - 2002  Frodo Looijaard <frodol@dds.nl>,
     Philip Edelbrock <phil@netroedge.com>, Kyösti Mälkki <kmalkki@cc.hut.fi>,
     Mark D. Studebaker <mdsxyz123@yahoo.com>
@@ -50,6 +48,7 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static struct pci_dev *vt596_pdev;
@@ -152,7 +151,7 @@ static int vt596_transaction(u8 size)
                 if ((temp = inb_p(SMBHSTSTS)) & 0x1F) {
                         dev_err(&vt596_adapter.dev, "SMBus reset failed! "
                                 "(0x%02x)\n", temp);
-                        return -1;
+                        return -EBUSY;
                 }
         }
 
@@ -167,24 +166,24 @@ static int vt596_transaction(u8 size)
 
         /* If the SMBus is still busy, we give up */
         if (timeout >= MAX_TIMEOUT) {
-                result = -1;
+                result = -ETIMEDOUT;
                 dev_err(&vt596_adapter.dev, "SMBus timeout!\n");
         }
 
         if (temp & 0x10) {
-                result = -1;
+                result = -EIO;
                 dev_err(&vt596_adapter.dev, "Transaction failed (0x%02x)\n",
                         size);
         }
 
         if (temp & 0x08) {
-                result = -1;
+                result = -EIO;
                 dev_err(&vt596_adapter.dev, "SMBus collision!\n");
         }
 
         if (temp & 0x04) {
                 int read = inb_p(SMBHSTADD) & 0x01;
-                result = -1;
+                result = -ENXIO;
                 /* The quick and receive byte commands are used to probe
                    for chips, so errors are expected, and we don't want
                    to frighten the user. */
@@ -202,12 +201,13 @@ static int vt596_transaction(u8 size)
         return result;
 }
 
-/* Return -1 on error, 0 on success */
+/* Return negative errno on error, 0 on success */
 static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
                 unsigned short flags, char read_write, u8 command,
                 int size, union i2c_smbus_data *data)
 {
         int i;
+        int status;
 
         switch (size) {
         case I2C_SMBUS_QUICK:
@@ -258,8 +258,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
 
         outb_p(((addr & 0x7f) << 1) | read_write, SMBHSTADD);
 
-        if (vt596_transaction(size)) /* Error in transaction */
-                return -1;
+        status = vt596_transaction(size);
+        if (status)
+                return status;
 
         if ((read_write == I2C_SMBUS_WRITE) || (size == VT596_QUICK))
                 return 0;
@@ -285,9 +286,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
         return 0;
 
 exit_unsupported:
-        dev_warn(&vt596_adapter.dev, "Unsupported command invoked! (0x%02x)\n",
+        dev_warn(&vt596_adapter.dev, "Unsupported transaction %d\n",
                  size);
-        return -1;
+        return -EOPNOTSUPP;
 }
 
 static u32 vt596_func(struct i2c_adapter *adapter)
@@ -309,7 +310,7 @@ static const struct i2c_algorithm smbus_algorithm = {
 static struct i2c_adapter vt596_adapter = {
         .owner          = THIS_MODULE,
         .id             = I2C_HW_SMBUS_VIA2,
-        .class          = I2C_CLASS_HWMON,
+        .class          = I2C_CLASS_HWMON | I2C_CLASS_SPD,
         .algo           = &smbus_algorithm,
 };
 
@@ -354,6 +355,10 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
         }
 
 found:
+        error = acpi_check_region(vt596_smba, 8, vt596_driver.name);
+        if (error)
+                return error;
+
         if (!request_region(vt596_smba, 8, vt596_driver.name)) {
                 dev_err(&pdev->dev, "SMBus region 0x%x already in use!\n",
                         vt596_smba);
diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c
index 88a3447e11e..1d4ae26ba73 100644
--- a/drivers/i2c/busses/i2c-voodoo3.c
+++ b/drivers/i2c/busses/i2c-voodoo3.c
@@ -1,6 +1,4 @@
 /*
-    voodoo3.c - Part of lm_sensors, Linux kernel modules for hardware
-              monitoring
     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>,
     Philip Edelbrock <phil@netroedge.com>,
     Ralph Metzler <rjkm@thp.uni-koeln.de>, and
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index 61abe0f3325..ed794b145a1 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -442,7 +442,7 @@ static __init struct scx200_acb_iface *scx200_create_iface(const char *text,
         adapter->owner = THIS_MODULE;
         adapter->id = I2C_HW_SMBUS_SCX200;
         adapter->algo = &scx200_acb_algorithm;
-        adapter->class = I2C_CLASS_HWMON;
+        adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
         adapter->dev.parent = dev;
 
         mutex_init(&iface->mutex);
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 2da2edfa68e..50e0a465374 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -14,6 +14,32 @@ config DS1682
           This driver can also be built as a module.  If so, the module
           will be called ds1682.
 
+config AT24
+        tristate "EEPROMs from most vendors"
+        depends on SYSFS && EXPERIMENTAL
+        help
+          Enable this driver to get read/write support to most I2C EEPROMs,
+          after you configure the driver to know about each EEPROM on
+          your target board.  Use these generic chip names, instead of
+          vendor-specific ones like at24c64 or 24lc02:
+
+             24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
+             24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
+
+          Unless you like data loss puzzles, always be sure that any chip
+          you configure as a 24c32 (32 kbit) or larger is NOT really a
+          24c16 (16 kbit) or smaller, and vice versa. Marking the chip
+          as read-only won't help recover from this. Also, if your chip
+          has any software write-protect mechanism you may want to review the
+          code to make sure this driver won't turn it on by accident.
+
+          If you use this with an SMBus adapter instead of an I2C adapter,
+          full functionality is not available.  Only smaller devices are
+          supported (24c16 and below, max 4 kByte).
+
+          This driver can also be built as a module.  If so, the module
+          will be called at24.
+
 config SENSORS_EEPROM
         tristate "EEPROM reader"
         depends on EXPERIMENTAL
@@ -26,8 +52,8 @@ config SENSORS_EEPROM
           will be called eeprom.
 
 config SENSORS_PCF8574
-        tristate "Philips PCF8574 and PCF8574A"
-        depends on EXPERIMENTAL
+        tristate "Philips PCF8574 and PCF8574A (DEPRECATED)"
+        depends on EXPERIMENTAL && GPIO_PCF857X = "n"
         default n
         help
           If you say yes here you get support for Philips PCF8574 and 
@@ -36,12 +62,16 @@ config SENSORS_PCF8574
           This driver can also be built as a module.  If so, the module
           will be called pcf8574.
 
+          This driver is deprecated and will be dropped soon. Use
+          drivers/gpio/pcf857x.c instead.
+
           These devices are hard to detect and rarely found on mainstream
           hardware.  If unsure, say N.
 
 config PCF8575
-        tristate "Philips PCF8575"
+        tristate "Philips PCF8575 (DEPRECATED)"
         default n
+        depends on GPIO_PCF857X = "n"
         help
           If you say yes here you get support for Philips PCF8575 chip.
           This chip is a 16-bit I/O expander for the I2C bus.  Several other
@@ -50,12 +80,15 @@ config PCF8575
           This driver can also be built as a module.  If so, the module
           will be called pcf8575.
 
+          This driver is deprecated and will be dropped soon. Use
+          drivers/gpio/pcf857x.c instead.
+
           This device is hard to detect and is rarely found on mainstream
           hardware.  If unsure, say N.
 
 config SENSORS_PCA9539
         tristate "Philips PCA9539 16-bit I/O port (DEPRECATED)"
-        depends on EXPERIMENTAL && GPIO_PCA9539 = "n"
+        depends on EXPERIMENTAL && GPIO_PCA953X = "n"
         help
           If you say yes here you get support for the Philips PCA9539
           16-bit I/O port.
@@ -64,7 +97,7 @@ config SENSORS_PCA9539
           will be called pca9539.
 
           This driver is deprecated and will be dropped soon. Use
-          drivers/gpio/pca9539.c instead.
+          drivers/gpio/pca953x.c instead.
 
 config SENSORS_PCF8591
         tristate "Philips PCF8591"
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index e47aca0ca5a..39e3e69ed12 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -10,6 +10,7 @@
 #
 
 obj-$(CONFIG_DS1682)            += ds1682.o
+obj-$(CONFIG_AT24)              += at24.o
 obj-$(CONFIG_SENSORS_EEPROM)    += eeprom.o
 obj-$(CONFIG_SENSORS_MAX6875)   += max6875.o
 obj-$(CONFIG_SENSORS_PCA9539)   += pca9539.o
diff --git a/drivers/i2c/chips/at24.c b/drivers/i2c/chips/at24.c
new file mode 100644
index 00000000000..e764c94f3e3
--- /dev/null
+++ b/drivers/i2c/chips/at24.c
@@ -0,0 +1,583 @@
+/*
+ * at24.c - handle most I2C EEPROMs
+ *
+ * Copyright (C) 2005-2007 David Brownell
+ * Copyright (C) 2008 Wolfram Sang, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/mod_devicetable.h>
+#include <linux/log2.h>
+#include <linux/bitops.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+
+/*
+ * I2C EEPROMs from most vendors are inexpensive and mostly interchangeable.
+ * Differences between different vendor product lines (like Atmel AT24C or
+ * MicroChip 24LC, etc) won't much matter for typical read/write access.
+ * There are also I2C RAM chips, likewise interchangeable. One example
+ * would be the PCF8570, which acts like a 24c02 EEPROM (256 bytes).
+ *
+ * However, misconfiguration can lose data. "Set 16-bit memory address"
+ * to a part with 8-bit addressing will overwrite data. Writing with too
+ * big a page size also loses data. And it's not safe to assume that the
+ * conventional addresses 0x50..0x57 only hold eeproms; a PCF8563 RTC
+ * uses 0x51, for just one example.
+ *
+ * Accordingly, explicit board-specific configuration data should be used
+ * in almost all cases. (One partial exception is an SMBus used to access
+ * "SPD" data for DRAM sticks. Those only use 24c02 EEPROMs.)
+ *
+ * So this driver uses "new style" I2C driver binding, expecting to be
+ * told what devices exist. That may be in arch/X/mach-Y/board-Z.c or
+ * similar kernel-resident tables; or, configuration data coming from
+ * a bootloader.
+ *
+ * Other than binding model, current differences from "eeprom" driver are
+ * that this one handles write access and isn't restricted to 24c02 devices.
+ * It also handles larger devices (32 kbit and up) with two-byte addresses,
+ * which won't work on pure SMBus systems.
+ */
+
+struct at24_data {
+        struct at24_platform_data chip;
+        bool use_smbus;
+
+        /*
+         * Lock protects against activities from other Linux tasks,
+         * but not from changes by other I2C masters.
+         */
+        struct mutex lock;
+        struct bin_attribute bin;
+
+        u8 *writebuf;
+        unsigned write_max;
+        unsigned num_addresses;
+
+        /*
+         * Some chips tie up multiple I2C addresses; dummy devices reserve
+         * them for us, and we'll use them with SMBus calls.
+         */
+        struct i2c_client *client[];
+};
+
+/*
+ * This parameter is to help this driver avoid blocking other drivers out
+ * of I2C for potentially troublesome amounts of time. With a 100 kHz I2C
+ * clock, one 256 byte read takes about 1/43 second which is excessive;
+ * but the 1/170 second it takes at 400 kHz may be quite reasonable; and
+ * at 1 MHz (Fm+) a 1/430 second delay could easily be invisible.
+ *
+ * This value is forced to be a power of two so that writes align on pages.
+ */
+static unsigned io_limit = 128;
+module_param(io_limit, uint, 0);
+MODULE_PARM_DESC(io_limit, "Maximum bytes per I/O (default 128)");
+
+/*
+ * Specs often allow 5 msec for a page write, sometimes 20 msec;
+ * it's important to recover from write timeouts.
+ */
+static unsigned write_timeout = 25;
+module_param(write_timeout, uint, 0);
+MODULE_PARM_DESC(write_timeout, "Time (in ms) to try writes (default 25)");
+
+#define AT24_SIZE_BYTELEN 5
+#define AT24_SIZE_FLAGS 8
+
+#define AT24_BITMASK(x) (BIT(x) - 1)
+
+/* create non-zero magic value for given eeprom parameters */
+#define AT24_DEVICE_MAGIC(_len, _flags)                 \
+        ((1 << AT24_SIZE_FLAGS | (_flags))              \
+            << AT24_SIZE_BYTELEN | ilog2(_len))
+
+static const struct i2c_device_id at24_ids[] = {
+        /* needs 8 addresses as A0-A2 are ignored */
+        { "24c00", AT24_DEVICE_MAGIC(128 / 8, AT24_FLAG_TAKE8ADDR) },
+        /* old variants can't be handled with this generic entry! */
+        { "24c01", AT24_DEVICE_MAGIC(1024 / 8, 0) },
+        { "24c02", AT24_DEVICE_MAGIC(2048 / 8, 0) },
+        /* spd is a 24c02 in memory DIMMs */
+        { "spd", AT24_DEVICE_MAGIC(2048 / 8,
+                AT24_FLAG_READONLY | AT24_FLAG_IRUGO) },
+        { "24c04", AT24_DEVICE_MAGIC(4096 / 8, 0) },
+        /* 24rf08 quirk is handled at i2c-core */
+        { "24c08", AT24_DEVICE_MAGIC(8192 / 8, 0) },
+        { "24c16", AT24_DEVICE_MAGIC(16384 / 8, 0) },
+        { "24c32", AT24_DEVICE_MAGIC(32768 / 8, AT24_FLAG_ADDR16) },
+        { "24c64", AT24_DEVICE_MAGIC(65536 / 8, AT24_FLAG_ADDR16) },
+        { "24c128", AT24_DEVICE_MAGIC(131072 / 8, AT24_FLAG_ADDR16) },
+        { "24c256", AT24_DEVICE_MAGIC(262144 / 8, AT24_FLAG_ADDR16) },
+        { "24c512", AT24_DEVICE_MAGIC(524288 / 8, AT24_FLAG_ADDR16) },
+        { "24c1024", AT24_DEVICE_MAGIC(1048576 / 8, AT24_FLAG_ADDR16) },
+        { "at24", 0 },
+        { /* END OF LIST */ }
+};
+MODULE_DEVICE_TABLE(i2c, at24_ids);
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * This routine supports chips which consume multiple I2C addresses. It
+ * computes the addressing information to be used for a given r/w request.
+ * Assumes that sanity checks for offset happened at sysfs-layer.
+ */
+static struct i2c_client *at24_translate_offset(struct at24_data *at24,
+                unsigned *offset)
+{
+        unsigned i;
+
+        if (at24->chip.flags & AT24_FLAG_ADDR16) {
+                i = *offset >> 16;
+                *offset &= 0xffff;
+        } else {
+                i = *offset >> 8;
+                *offset &= 0xff;
+        }
+
+        return at24->client[i];
+}
+
+static ssize_t at24_eeprom_read(struct at24_data *at24, char *buf,
+                unsigned offset, size_t count)
+{
+        struct i2c_msg msg[2];
+        u8 msgbuf[2];
+        struct i2c_client *client;
+        int status, i;
+
+        memset(msg, 0, sizeof(msg));
+
+        /*
+         * REVISIT some multi-address chips don't rollover page reads to
+         * the next slave address, so we may need to truncate the count.
+         * Those chips might need another quirk flag.
+         *
+         * If the real hardware used four adjacent 24c02 chips and that
+         * were misconfigured as one 24c08, that would be a similar effect:
+         * one "eeprom" file not four, but larger reads would fail when
+         * they crossed certain pages.
+         */
+
+        /*
+         * Slave address and byte offset derive from the offset. Always
+         * set the byte address; on a multi-master board, another master
+         * may have changed the chip's "current" address pointer.
+         */
+        client = at24_translate_offset(at24, &offset);
+
+        if (count > io_limit)
+                count = io_limit;
+
+        /* Smaller eeproms can work given some SMBus extension calls */
+        if (at24->use_smbus) {
+                if (count > I2C_SMBUS_BLOCK_MAX)
+                        count = I2C_SMBUS_BLOCK_MAX;
+                status = i2c_smbus_read_i2c_block_data(client, offset,
+                                count, buf);
+                dev_dbg(&client->dev, "smbus read %zd@%d --> %d\n",
+                                count, offset, status);
+                return (status < 0) ? -EIO : status;
+        }
+
+        /*
+         * When we have a better choice than SMBus calls, use a combined
+         * I2C message. Write address; then read up to io_limit data bytes.
+         * Note that read page rollover helps us here (unlike writes).
+         * msgbuf is u8 and will cast to our needs.
+         */
+        i = 0;
+        if (at24->chip.flags & AT24_FLAG_ADDR16)
+                msgbuf[i++] = offset >> 8;
+        msgbuf[i++] = offset;
+
+        msg[0].addr = client->addr;
+        msg[0].buf = msgbuf;
+        msg[0].len = i;
+
+        msg[1].addr = client->addr;
+        msg[1].flags = I2C_M_RD;
+        msg[1].buf = buf;
+        msg[1].len = count;
+
+        status = i2c_transfer(client->adapter, msg, 2);
+        dev_dbg(&client->dev, "i2c read %zd@%d --> %d\n",
+                        count, offset, status);
+
+        if (status == 2)
+                return count;
+        else if (status >= 0)
+                return -EIO;
+        else
+                return status;
+}
+
+static ssize_t at24_bin_read(struct kobject *kobj, struct bin_attribute *attr,
+                char *buf, loff_t off, size_t count)
+{
+        struct at24_data *at24;
+        ssize_t retval = 0;
+
+        at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+
+        if (unlikely(!count))
+                return count;
+
+        /*
+         * Read data from chip, protecting against concurrent updates
+         * from this host, but not from other I2C masters.
+         */
+        mutex_lock(&at24->lock);
+
+        while (count) {
+                ssize_t status;
+
+                status = at24_eeprom_read(at24, buf, off, count);
+                if (status <= 0) {
+                        if (retval == 0)
+                                retval = status;
+                        break;
+                }
+                buf += status;
+                off += status;
+                count -= status;
+                retval += status;
+        }
+
+        mutex_unlock(&at24->lock);
+
+        return retval;
+}
+
+
+/*
+ * REVISIT: export at24_bin{read,write}() to let other kernel code use
+ * eeprom data. For example, it might hold a board's Ethernet address, or
+ * board-specific calibration data generated on the manufacturing floor.
+ */
+
+
+/*
+ * Note that if the hardware write-protect pin is pulled high, the whole
+ * chip is normally write protected. But there are plenty of product
+ * variants here, including OTP fuses and partial chip protect.
+ *
+ * We only use page mode writes; the alternative is sloooow. This routine
+ * writes at most one page.
+ */
+static ssize_t at24_eeprom_write(struct at24_data *at24, char *buf,
+                unsigned offset, size_t count)
+{
+        struct i2c_client *client;
+        struct i2c_msg msg;
+        ssize_t status;
+        unsigned long timeout, write_time;
+        unsigned next_page;
+
+        /* Get corresponding I2C address and adjust offset */
+        client = at24_translate_offset(at24, &offset);
+
+        /* write_max is at most a page */
+        if (count > at24->write_max)
+                count = at24->write_max;
+
+        /* Never roll over backwards, to the start of this page */
+        next_page = roundup(offset + 1, at24->chip.page_size);
+        if (offset + count > next_page)
+                count = next_page - offset;
+
+        /* If we'll use I2C calls for I/O, set up the message */
+        if (!at24->use_smbus) {
+                int i = 0;
+
+                msg.addr = client->addr;
+                msg.flags = 0;
+
+                /* msg.buf is u8 and casts will mask the values */
+                msg.buf = at24->writebuf;
+                if (at24->chip.flags & AT24_FLAG_ADDR16)
+                        msg.buf[i++] = offset >> 8;
+
+                msg.buf[i++] = offset;
+                memcpy(&msg.buf[i], buf, count);
+                msg.len = i + count;
+        }
+
+        /*
+         * Writes fail if the previous one didn't complete yet. We may
+         * loop a few times until this one succeeds, waiting at least
+         * long enough for one entire page write to work.
+         */
+        timeout = jiffies + msecs_to_jiffies(write_timeout);
+        do {
+                write_time = jiffies;
+                if (at24->use_smbus) {
+                        status = i2c_smbus_write_i2c_block_data(client,
+                                        offset, count, buf);
+                        if (status == 0)
+                                status = count;
+                } else {
+                        status = i2c_transfer(client->adapter, &msg, 1);
+                        if (status == 1)
+                                status = count;
+                }
+                dev_dbg(&client->dev, "write %zd@%d --> %zd (%ld)\n",
+                                count, offset, status, jiffies);
+
+                if (status == count)
+                        return count;
+
+                /* REVISIT: at HZ=100, this is sloooow */
+                msleep(1);
+        } while (time_before(write_time, timeout));
+
+        return -ETIMEDOUT;
+}
+
+static ssize_t at24_bin_write(struct kobject *kobj, struct bin_attribute *attr,
+                char *buf, loff_t off, size_t count)
+{
+        struct at24_data *at24;
+        ssize_t retval = 0;
+
+        at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+
+        if (unlikely(!count))
+                return count;
+
+        /*
+         * Write data to chip, protecting against concurrent updates
+         * from this host, but not from other I2C masters.
+         */
+        mutex_lock(&at24->lock);
+
+        while (count) {
+                ssize_t status;
+
+                status = at24_eeprom_write(at24, buf, off, count);
+                if (status <= 0) {
+                        if (retval == 0)
+                                retval = status;
+                        break;
+                }
+                buf += status;
+                off += status;
+                count -= status;
+                retval += status;
+        }
+
+        mutex_unlock(&at24->lock);
+
+        return retval;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+        struct at24_platform_data chip;
+        bool writable;
+        bool use_smbus = false;
+        struct at24_data *at24;
+        int err;
+        unsigned i, num_addresses;
+        kernel_ulong_t magic;
+
+        if (client->dev.platform_data) {
+                chip = *(struct at24_platform_data *)client->dev.platform_data;
+        } else {
+                if (!id->driver_data) {
+                        err = -ENODEV;
+                        goto err_out;
+                }
+                magic = id->driver_data;
+                chip.byte_len = BIT(magic & AT24_BITMASK(AT24_SIZE_BYTELEN));
+                magic >>= AT24_SIZE_BYTELEN;
+                chip.flags = magic & AT24_BITMASK(AT24_SIZE_FLAGS);
+                /*
+                 * This is slow, but we can't know all eeproms, so we better
+                 * play safe. Specifying custom eeprom-types via platform_data
+                 * is recommended anyhow.
+                 */
+                chip.page_size = 1;
+        }
+
+        if (!is_power_of_2(chip.byte_len))
+                dev_warn(&client->dev,
+                        "byte_len looks suspicious (no power of 2)!\n");
+        if (!is_power_of_2(chip.page_size))
+                dev_warn(&client->dev,
+                        "page_size looks suspicious (no power of 2)!\n");
+
+        /* Use I2C operations unless we're stuck with SMBus extensions. */
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+                if (chip.flags & AT24_FLAG_ADDR16) {
+                        err = -EPFNOSUPPORT;
+                        goto err_out;
+                }
+                if (!i2c_check_functionality(client->adapter,
+                                I2C_FUNC_SMBUS_READ_I2C_BLOCK)) {
+                        err = -EPFNOSUPPORT;
+                        goto err_out;
+                }
+                use_smbus = true;
+        }
+
+        if (chip.flags & AT24_FLAG_TAKE8ADDR)
+                num_addresses = 8;
+        else
+                num_addresses = DIV_ROUND_UP(chip.byte_len,
+                        (chip.flags & AT24_FLAG_ADDR16) ? 65536 : 256);
+
+        at24 = kzalloc(sizeof(struct at24_data) +
+                num_addresses * sizeof(struct i2c_client *), GFP_KERNEL);
+        if (!at24) {
+                err = -ENOMEM;
+                goto err_out;
+        }
+
+        mutex_init(&at24->lock);
+        at24->use_smbus = use_smbus;
+        at24->chip = chip;
+        at24->num_addresses = num_addresses;
+
+        /*
+         * Export the EEPROM bytes through sysfs, since that's convenient.
+         * By default, only root should see the data (maybe passwords etc)
+         */
+        at24->bin.attr.name = "eeprom";
+        at24->bin.attr.mode = chip.flags & AT24_FLAG_IRUGO ? S_IRUGO : S_IRUSR;
+        at24->bin.attr.owner = THIS_MODULE;
+        at24->bin.read = at24_bin_read;
+        at24->bin.size = chip.byte_len;
+
+        writable = !(chip.flags & AT24_FLAG_READONLY);
+        if (writable) {
+                if (!use_smbus || i2c_check_functionality(client->adapter,
+                                I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)) {
+
+                        unsigned write_max = chip.page_size;
+
+                        at24->bin.write = at24_bin_write;
+                        at24->bin.attr.mode |= S_IWUSR;
+
+                        if (write_max > io_limit)
+                                write_max = io_limit;
+                        if (use_smbus && write_max > I2C_SMBUS_BLOCK_MAX)
+                                write_max = I2C_SMBUS_BLOCK_MAX;
+                        at24->write_max = write_max;
+
+                        /* buffer (data + address at the beginning) */
+                        at24->writebuf = kmalloc(write_max + 2, GFP_KERNEL);
+                        if (!at24->writebuf) {
+                                err = -ENOMEM;
+                                goto err_struct;
+                        }
+                } else {
+                        dev_warn(&client->dev,
+                                "cannot write due to controller restrictions.");
+                }
+        }
+
+        at24->client[0] = client;
+
+        /* use dummy devices for multiple-address chips */
+        for (i = 1; i < num_addresses; i++) {
+                at24->client[i] = i2c_new_dummy(client->adapter,
+                                        client->addr + i);
+                if (!at24->client[i]) {
+                        dev_err(&client->dev, "address 0x%02x unavailable\n",
+                                        client->addr + i);
+                        err = -EADDRINUSE;
+                        goto err_clients;
+                }
+        }
+
+        err = sysfs_create_bin_file(&client->dev.kobj, &at24->bin);
+        if (err)
+                goto err_clients;
+
+        i2c_set_clientdata(client, at24);
+
+        dev_info(&client->dev, "%Zd byte %s EEPROM %s\n",
+                at24->bin.size, client->name,
+                writable ? "(writable)" : "(read-only)");
+        dev_dbg(&client->dev,
+                "page_size %d, num_addresses %d, write_max %d%s\n",
+                chip.page_size, num_addresses,
+                at24->write_max,
+                use_smbus ? ", use_smbus" : "");
+
+        return 0;
+
+err_clients:
+        for (i = 1; i < num_addresses; i++)
+                if (at24->client[i])
+                        i2c_unregister_device(at24->client[i]);
+
+        kfree(at24->writebuf);
+err_struct:
+        kfree(at24);
+err_out:
+        dev_dbg(&client->dev, "probe error %d\n", err);
+        return err;
+}
+
+static int __devexit at24_remove(struct i2c_client *client)
+{
+        struct at24_data *at24;
+        int i;
+
+        at24 = i2c_get_clientdata(client);
+        sysfs_remove_bin_file(&client->dev.kobj, &at24->bin);
+
+        for (i = 1; i < at24->num_addresses; i++)
+                i2c_unregister_device(at24->client[i]);
+
+        kfree(at24->writebuf);
+        kfree(at24);
+        i2c_set_clientdata(client, NULL);
+        return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static struct i2c_driver at24_driver = {
+        .driver = {
+                .name = "at24",
+                .owner = THIS_MODULE,
+        },
+        .probe = at24_probe,
+        .remove = __devexit_p(at24_remove),
+        .id_table = at24_ids,
+};
+
+static int __init at24_init(void)
+{
+        io_limit = rounddown_pow_of_two(io_limit);
+        return i2c_add_driver(&at24_driver);
+}
+module_init(at24_init);
+
+static void __exit at24_exit(void)
+{
+        i2c_del_driver(&at24_driver);
+}
+module_exit(at24_exit);
+
+MODULE_DESCRIPTION("Driver for most I2C EEPROMs");
+MODULE_AUTHOR("David Brownell and Wolfram Sang");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
index 7dee001e513..373ea8d8fe8 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/i2c/chips/eeprom.c
@@ -1,15 +1,9 @@
 /*
-    eeprom.c - Part of lm_sensors, Linux kernel modules for hardware
-               monitoring
     Copyright (C) 1998, 1999  Frodo Looijaard <frodol@dds.nl> and
                                Philip Edelbrock <phil@netroedge.com>
     Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
     Copyright (C) 2003 IBM Corp.
-
-    2004-01-16  Jean Delvare <khali@linux-fr.org>
-    Divide the eeprom in 32-byte (arbitrary) slices. This significantly
-    speeds sensors up, as well as various scripts using the eeprom
-    module.
+    Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -78,7 +72,7 @@ static struct i2c_driver eeprom_driver = {
 static void eeprom_update_client(struct i2c_client *client, u8 slice)
 {
         struct eeprom_data *data = i2c_get_clientdata(client);
-        int i, j;
+        int i;
 
         mutex_lock(&data->update_lock);
 
@@ -93,15 +87,12 @@ static void eeprom_update_client(struct i2c_client *client, u8 slice)
                                                         != 32)
                                         goto exit;
                 } else {
-                        if (i2c_smbus_write_byte(client, slice << 5)) {
-                                dev_dbg(&client->dev, "eeprom read start has failed!\n");
-                                goto exit;
-                        }
-                        for (i = slice << 5; i < (slice + 1) << 5; i++) {
-                                j = i2c_smbus_read_byte(client);
-                                if (j < 0)
+                        for (i = slice << 5; i < (slice + 1) << 5; i += 2) {
+                                int word = i2c_smbus_read_word_data(client, i);
+                                if (word < 0)
                                         goto exit;
-                                data->data[i] = (u8) j;
+                                data->data[i] = word & 0xff;
+                                data->data[i + 1] = word >> 8;
                         }
                 }
                 data->last_updated[slice] = jiffies;
@@ -159,24 +150,33 @@ static struct bin_attribute eeprom_attr = {
 
 static int eeprom_attach_adapter(struct i2c_adapter *adapter)
 {
+        if (!(adapter->class & (I2C_CLASS_DDC | I2C_CLASS_SPD)))
+                return 0;
         return i2c_probe(adapter, &addr_data, eeprom_detect);
 }
 
 /* This function is called by i2c_probe */
 static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
 {
-        struct i2c_client *new_client;
+        struct i2c_client *client;
         struct eeprom_data *data;
         int err = 0;
 
-        /* There are three ways we can read the EEPROM data:
+        /* EDID EEPROMs are often 24C00 EEPROMs, which answer to all
+           addresses 0x50-0x57, but we only care about 0x50. So decline
+           attaching to addresses >= 0x51 on DDC buses */
+        if (!(adapter->class & I2C_CLASS_SPD) && address >= 0x51)
+                goto exit;
+
+        /* There are four ways we can read the EEPROM data:
            (1) I2C block reads (faster, but unsupported by most adapters)
-           (2) Consecutive byte reads (100% overhead)
-           (3) Regular byte data reads (200% overhead)
-           The third method is not implemented by this driver because all
-           known adapters support at least the second. */
-        if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA
-                                            | I2C_FUNC_SMBUS_BYTE))
+           (2) Word reads (128% overhead)
+           (3) Consecutive byte reads (88% overhead, unsafe)
+           (4) Regular byte data reads (265% overhead)
+           The third and fourth methods are not implemented by this driver
+           because all known adapters support one of the first two. */
+        if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_WORD_DATA)
+         && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK))
                 goto exit;
 
         if (!(data = kzalloc(sizeof(struct eeprom_data), GFP_KERNEL))) {
@@ -184,50 +184,49 @@ static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
                 goto exit;
         }
 
-        new_client = &data->client;
+        client = &data->client;
         memset(data->data, 0xff, EEPROM_SIZE);
-        i2c_set_clientdata(new_client, data);
-        new_client->addr = address;
-        new_client->adapter = adapter;
-        new_client->driver = &eeprom_driver;
-        new_client->flags = 0;
+        i2c_set_clientdata(client, data);
+        client->addr = address;
+        client->adapter = adapter;
+        client->driver = &eeprom_driver;
 
         /* Fill in the remaining client fields */
-        strlcpy(new_client->name, "eeprom", I2C_NAME_SIZE);
-        data->valid = 0;
+        strlcpy(client->name, "eeprom", I2C_NAME_SIZE);
         mutex_init(&data->update_lock);
         data->nature = UNKNOWN;
 
         /* Tell the I2C layer a new client has arrived */
-        if ((err = i2c_attach_client(new_client)))
+        if ((err = i2c_attach_client(client)))
                 goto exit_kfree;
 
         /* Detect the Vaio nature of EEPROMs.
            We use the "PCG-" or "VGN-" prefix as the signature. */
-        if (address == 0x57) {
+        if (address == 0x57
+         && i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA)) {
                 char name[4];
 
-                name[0] = i2c_smbus_read_byte_data(new_client, 0x80);
-                name[1] = i2c_smbus_read_byte(new_client);
-                name[2] = i2c_smbus_read_byte(new_client);
-                name[3] = i2c_smbus_read_byte(new_client);
+                name[0] = i2c_smbus_read_byte_data(client, 0x80);
+                name[1] = i2c_smbus_read_byte_data(client, 0x81);
+                name[2] = i2c_smbus_read_byte_data(client, 0x82);
+                name[3] = i2c_smbus_read_byte_data(client, 0x83);
 
                 if (!memcmp(name, "PCG-", 4) || !memcmp(name, "VGN-", 4)) {
-                        dev_info(&new_client->dev, "Vaio EEPROM detected, "
+                        dev_info(&client->dev, "Vaio EEPROM detected, "
                                  "enabling privacy protection\n");
                         data->nature = VAIO;
                 }
         }
 
         /* create the sysfs eeprom file */
-        err = sysfs_create_bin_file(&new_client->dev.kobj, &eeprom_attr);
+        err = sysfs_create_bin_file(&client->dev.kobj, &eeprom_attr);
         if (err)
                 goto exit_detach;
 
         return 0;
 
 exit_detach:
-        i2c_detach_client(new_client);
+        i2c_detach_client(client);
 exit_kfree:
         kfree(data);
 exit:
diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c
index cf507b3f60f..5a0285d8b6f 100644
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/i2c/chips/max6875.c
@@ -170,7 +170,7 @@ static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
         struct i2c_client *real_client;
         struct i2c_client *fake_client;
         struct max6875_data *data;
-        int err = 0;
+        int err;
 
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_BYTE_DATA
                                      | I2C_FUNC_SMBUS_READ_BYTE))
@@ -195,7 +195,6 @@ static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
         real_client->addr = address;
         real_client->adapter = adapter;
         real_client->driver = &max6875_driver;
-        real_client->flags = 0;
         strlcpy(real_client->name, "max6875", I2C_NAME_SIZE);
         mutex_init(&data->update_lock);
 
@@ -204,7 +203,6 @@ static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
         fake_client->addr = address | 1;
         fake_client->adapter = adapter;
         fake_client->driver = &max6875_driver;
-        fake_client->flags = 0;
         strlcpy(fake_client->name, "max6875 subclient", I2C_NAME_SIZE);
 
         if ((err = i2c_attach_client(real_client)) != 0)
diff --git a/drivers/i2c/chips/pca9539.c b/drivers/i2c/chips/pca9539.c
index f43c4e79b55..58ab7f26be2 100644
--- a/drivers/i2c/chips/pca9539.c
+++ b/drivers/i2c/chips/pca9539.c
@@ -113,7 +113,7 @@ static int pca9539_attach_adapter(struct i2c_adapter *adapter)
 /* This function is called by i2c_probe */
 static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind)
 {
-        struct i2c_client *new_client;
+        struct i2c_client *client;
         struct pca9539_data *data;
         int err = 0;
 
@@ -127,29 +127,28 @@ static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind)
                 goto exit;
         }
 
-        new_client = &data->client;
-        i2c_set_clientdata(new_client, data);
-        new_client->addr = address;
-        new_client->adapter = adapter;
-        new_client->driver = &pca9539_driver;
-        new_client->flags = 0;
+        client = &data->client;
+        i2c_set_clientdata(client, data);
+        client->addr = address;
+        client->adapter = adapter;
+        client->driver = &pca9539_driver;
 
         if (kind < 0) {
                 /* Detection: the pca9539 only has 8 registers (0-7).
                    A read of 7 should succeed, but a read of 8 should fail. */
-                if ((i2c_smbus_read_byte_data(new_client, 7) < 0) ||
-                    (i2c_smbus_read_byte_data(new_client, 8) >= 0))
+                if ((i2c_smbus_read_byte_data(client, 7) < 0) ||
+                    (i2c_smbus_read_byte_data(client, 8) >= 0))
                         goto exit_kfree;
         }
 
-        strlcpy(new_client->name, "pca9539", I2C_NAME_SIZE);
+        strlcpy(client->name, "pca9539", I2C_NAME_SIZE);
 
         /* Tell the I2C layer a new client has arrived */
-        if ((err = i2c_attach_client(new_client)))
+        if ((err = i2c_attach_client(client)))
                 goto exit_kfree;
 
         /* Register sysfs hooks */
-        err = sysfs_create_group(&new_client->dev.kobj,
+        err = sysfs_create_group(&client->dev.kobj,
                                  &pca9539_defattr_group);
         if (err)
                 goto exit_detach;
@@ -157,7 +156,7 @@ static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind)
         return 0;
 
 exit_detach:
-        i2c_detach_client(new_client);
+        i2c_detach_client(client);
 exit_kfree:
         kfree(data);
 exit:
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c
index e5b31329b56..1b3db2b3ada 100644
--- a/drivers/i2c/chips/pcf8574.c
+++ b/drivers/i2c/chips/pcf8574.c
@@ -1,6 +1,4 @@
 /*
-    pcf8574.c - Part of lm_sensors, Linux kernel modules for hardware
-             monitoring
     Copyright (c) 2000  Frodo Looijaard <frodol@dds.nl>, 
                         Philip Edelbrock <phil@netroedge.com>,
                         Dan Eaton <dan.eaton@rocketlogix.com>
@@ -129,7 +127,7 @@ static int pcf8574_attach_adapter(struct i2c_adapter *adapter)
 /* This function is called by i2c_probe */
 static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
 {
-        struct i2c_client *new_client;
+        struct i2c_client *client;
         struct pcf8574_data *data;
         int err = 0;
         const char *client_name = "";
@@ -144,12 +142,11 @@ static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
                 goto exit;
         }
 
-        new_client = &data->client;
-        i2c_set_clientdata(new_client, data);
-        new_client->addr = address;
-        new_client->adapter = adapter;
-        new_client->driver = &pcf8574_driver;
-        new_client->flags = 0;
+        client = &data->client;
+        i2c_set_clientdata(client, data);
+        client->addr = address;
+        client->adapter = adapter;
+        client->driver = &pcf8574_driver;
 
         /* Now, we would do the remaining detection. But the PCF8574 is plainly
            impossible to detect! Stupid chip. */
@@ -168,23 +165,23 @@ static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
                 client_name = "pcf8574";
 
         /* Fill in the remaining client fields and put it into the global list */
-        strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
+        strlcpy(client->name, client_name, I2C_NAME_SIZE);
 
         /* Tell the I2C layer a new client has arrived */
-        if ((err = i2c_attach_client(new_client)))
+        if ((err = i2c_attach_client(client)))
                 goto exit_free;
         
         /* Initialize the PCF8574 chip */
-        pcf8574_init_client(new_client);
+        pcf8574_init_client(client);
 
         /* Register sysfs hooks */
-        err = sysfs_create_group(&new_client->dev.kobj, &pcf8574_attr_group);
+        err = sysfs_create_group(&client->dev.kobj, &pcf8574_attr_group);
         if (err)
                 goto exit_detach;
         return 0;
 
       exit_detach:
-        i2c_detach_client(new_client);
+        i2c_detach_client(client);
       exit_free:
         kfree(data);
       exit:
diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c
index 66c7c3bb942..db735379f22 100644
--- a/drivers/i2c/chips/pcf8591.c
+++ b/drivers/i2c/chips/pcf8591.c
@@ -1,6 +1,4 @@
 /*
-    pcf8591.c - Part of lm_sensors, Linux kernel modules for hardware
-                monitoring
     Copyright (C) 2001-2004 Aurelien Jarno <aurelien@aurel32.net>
     Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with 
     the help of Jean Delvare <khali@linux-fr.org>
@@ -190,7 +188,7 @@ static int pcf8591_attach_adapter(struct i2c_adapter *adapter)
 /* This function is called by i2c_probe */
 static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
 {
-        struct i2c_client *new_client;
+        struct i2c_client *client;
         struct pcf8591_data *data;
         int err = 0;
 
@@ -205,12 +203,11 @@ static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
                 goto exit;
         }
         
-        new_client = &data->client;
-        i2c_set_clientdata(new_client, data);
-        new_client->addr = address;
-        new_client->adapter = adapter;
-        new_client->driver = &pcf8591_driver;
-        new_client->flags = 0;
+        client = &data->client;
+        i2c_set_clientdata(client, data);
+        client->addr = address;
+        client->adapter = adapter;
+        client->driver = &pcf8591_driver;
 
         /* Now, we would do the remaining detection. But the PCF8591 is plainly
            impossible to detect! Stupid chip. */
@@ -221,31 +218,31 @@ static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
 
         /* Fill in the remaining client fields and put it into the global 
            list */
-        strlcpy(new_client->name, "pcf8591", I2C_NAME_SIZE);
+        strlcpy(client->name, "pcf8591", I2C_NAME_SIZE);
         mutex_init(&data->update_lock);
 
         /* Tell the I2C layer a new client has arrived */
-        if ((err = i2c_attach_client(new_client)))
+        if ((err = i2c_attach_client(client)))
                 goto exit_kfree;
 
         /* Initialize the PCF8591 chip */
-        pcf8591_init_client(new_client);
+        pcf8591_init_client(client);
 
         /* Register sysfs hooks */
-        err = sysfs_create_group(&new_client->dev.kobj, &pcf8591_attr_group);
+        err = sysfs_create_group(&client->dev.kobj, &pcf8591_attr_group);
         if (err)
                 goto exit_detach;
 
         /* Register input2 if not in "two differential inputs" mode */
         if (input_mode != 3) {
-                if ((err = device_create_file(&new_client->dev,
+                if ((err = device_create_file(&client->dev,
                                               &dev_attr_in2_input)))
                         goto exit_sysfs_remove;
         }
 
         /* Register input3 only in "four single ended inputs" mode */
         if (input_mode == 0) {
-                if ((err = device_create_file(&new_client->dev,
+                if ((err = device_create_file(&client->dev,
                                               &dev_attr_in3_input)))
                         goto exit_sysfs_remove;
         }
@@ -253,10 +250,10 @@ static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
         return 0;
 
 exit_sysfs_remove:
-        sysfs_remove_group(&new_client->dev.kobj, &pcf8591_attr_group_opt);
-        sysfs_remove_group(&new_client->dev.kobj, &pcf8591_attr_group);
+        sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt);
+        sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group);
 exit_detach:
-        i2c_detach_client(new_client);
+        i2c_detach_client(client);
 exit_kfree:
         kfree(data);
 exit:
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index d0175f4f8fc..0a79f766101 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -29,13 +29,11 @@
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/idr.h>
-#include <linux/seq_file.h>
 #include <linux/platform_device.h>
 #include <linux/mutex.h>
 #include <linux/completion.h>
 #include <linux/hardirq.h>
 #include <linux/irqflags.h>
-#include <linux/semaphore.h>
 #include <asm/uaccess.h>
 
 #include "i2c-core.h"
@@ -44,7 +42,9 @@
 static DEFINE_MUTEX(core_lock);
 static DEFINE_IDR(i2c_adapter_idr);
 
-#define is_newstyle_driver(d) ((d)->probe || (d)->remove)
+#define is_newstyle_driver(d) ((d)->probe || (d)->remove || (d)->detect)
+
+static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver);
 
 /* ------------------------------------------------------------------------- */
 
@@ -103,19 +103,14 @@ static int i2c_device_probe(struct device *dev)
 {
         struct i2c_client       *client = to_i2c_client(dev);
         struct i2c_driver       *driver = to_i2c_driver(dev->driver);
-        const struct i2c_device_id *id;
         int status;
 
-        if (!driver->probe)
+        if (!driver->probe || !driver->id_table)
                 return -ENODEV;
         client->driver = driver;
         dev_dbg(dev, "probe\n");
 
-        if (driver->id_table)
-                id = i2c_match_id(driver->id_table, client);
-        else
-                id = NULL;
-        status = driver->probe(client, id);
+        status = driver->probe(client, i2c_match_id(driver->id_table, client));
         if (status)
                 client->driver = NULL;
         return status;
@@ -208,7 +203,7 @@ static struct device_attribute i2c_dev_attrs[] = {
         { },
 };
 
-static struct bus_type i2c_bus_type = {
+struct bus_type i2c_bus_type = {
         .name           = "i2c",
         .dev_attrs      = i2c_dev_attrs,
         .match          = i2c_device_match,
@@ -219,6 +214,7 @@ static struct bus_type i2c_bus_type = {
         .suspend        = i2c_device_suspend,
         .resume         = i2c_device_resume,
 };
+EXPORT_SYMBOL_GPL(i2c_bus_type);
 
 
 /**
@@ -306,6 +302,14 @@ void i2c_unregister_device(struct i2c_client *client)
                 return;
         }
 
+        if (adapter->client_unregister) {
+                if (adapter->client_unregister(client)) {
+                        dev_warn(&client->dev,
+                                 "client_unregister [%s] failed\n",
+                                 client->name);
+                }
+        }
+
         mutex_lock(&adapter->clist_lock);
         list_del(&client->list);
         mutex_unlock(&adapter->clist_lock);
@@ -416,6 +420,10 @@ static int i2c_do_add_adapter(struct device_driver *d, void *data)
         struct i2c_driver *driver = to_i2c_driver(d);
         struct i2c_adapter *adap = data;
 
+        /* Detect supported devices on that bus, and instantiate them */
+        i2c_detect(adap, driver);
+
+        /* Let legacy drivers scan this bus for matching devices */
         if (driver->attach_adapter) {
                 /* We ignore the return code; if it fails, too bad */
                 driver->attach_adapter(adap);
@@ -455,7 +463,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
         if (adap->nr < __i2c_first_dynamic_bus_num)
                 i2c_scan_static_board_info(adap);
 
-        /* let legacy drivers scan this bus for matching devices */
+        /* Notify drivers */
         dummy = bus_for_each_drv(&i2c_bus_type, NULL, adap,
                                  i2c_do_add_adapter);
 
@@ -561,8 +569,19 @@ static int i2c_do_del_adapter(struct device_driver *d, void *data)
 {
         struct i2c_driver *driver = to_i2c_driver(d);
         struct i2c_adapter *adapter = data;
+        struct i2c_client *client, *_n;
         int res;
 
+        /* Remove the devices we created ourselves */
+        list_for_each_entry_safe(client, _n, &driver->clients, detected) {
+                if (client->adapter == adapter) {
+                        dev_dbg(&adapter->dev, "Removing %s at 0x%x\n",
+                                client->name, client->addr);
+                        list_del(&client->detected);
+                        i2c_unregister_device(client);
+                }
+        }
+
         if (!driver->detach_adapter)
                 return 0;
         res = driver->detach_adapter(adapter);
@@ -582,8 +601,7 @@ static int i2c_do_del_adapter(struct device_driver *d, void *data)
  */
 int i2c_del_adapter(struct i2c_adapter *adap)
 {
-        struct list_head  *item, *_n;
-        struct i2c_client *client;
+        struct i2c_client *client, *_n;
         int res = 0;
 
         mutex_lock(&core_lock);
@@ -604,10 +622,9 @@ int i2c_del_adapter(struct i2c_adapter *adap)
 
         /* detach any active clients. This must be done first, because
          * it can fail; in which case we give up. */
-        list_for_each_safe(item, _n, &adap->clients) {
+        list_for_each_entry_safe(client, _n, &adap->clients, list) {
                 struct i2c_driver       *driver;
 
-                client = list_entry(item, struct i2c_client, list);
                 driver = client->driver;
 
                 /* new style, follow standard driver model */
@@ -646,6 +663,20 @@ EXPORT_SYMBOL(i2c_del_adapter);
 
 /* ------------------------------------------------------------------------- */
 
+static int __attach_adapter(struct device *dev, void *data)
+{
+        struct i2c_adapter *adapter = to_i2c_adapter(dev);
+        struct i2c_driver *driver = data;
+
+        i2c_detect(adapter, driver);
+
+        /* Legacy drivers scan i2c busses directly */
+        if (driver->attach_adapter)
+                driver->attach_adapter(adapter);
+
+        return 0;
+}
+
 /*
  * An i2c_driver is used with one or more i2c_client (device) nodes to access
  * i2c slave chips, on a bus instance associated with some i2c_adapter.  There
@@ -685,72 +716,70 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
 
         pr_debug("i2c-core: driver [%s] registered\n", driver->driver.name);
 
-        /* legacy drivers scan i2c busses directly */
-        if (driver->attach_adapter) {
-                struct i2c_adapter *adapter;
-
-                down(&i2c_adapter_class.sem);
-                list_for_each_entry(adapter, &i2c_adapter_class.devices,
-                                    dev.node) {
-                        driver->attach_adapter(adapter);
-                }
-                up(&i2c_adapter_class.sem);
-        }
+        INIT_LIST_HEAD(&driver->clients);
+        /* Walk the adapters that are already present */
+        class_for_each_device(&i2c_adapter_class, driver, __attach_adapter);
 
         mutex_unlock(&core_lock);
         return 0;
 }
 EXPORT_SYMBOL(i2c_register_driver);
 
-/**
- * i2c_del_driver - unregister I2C driver
- * @driver: the driver being unregistered
- * Context: can sleep
- */
-void i2c_del_driver(struct i2c_driver *driver)
+static int __detach_adapter(struct device *dev, void *data)
 {
-        struct list_head   *item2, *_n;
-        struct i2c_client  *client;
-        struct i2c_adapter *adap;
+        struct i2c_adapter *adapter = to_i2c_adapter(dev);
+        struct i2c_driver *driver = data;
+        struct i2c_client *client, *_n;
 
-        mutex_lock(&core_lock);
+        list_for_each_entry_safe(client, _n, &driver->clients, detected) {
+                dev_dbg(&adapter->dev, "Removing %s at 0x%x\n",
+                        client->name, client->addr);
+                list_del(&client->detected);
+                i2c_unregister_device(client);
+        }
 
-        /* new-style driver? */
         if (is_newstyle_driver(driver))
-                goto unregister;
+                return 0;
 
         /* Have a look at each adapter, if clients of this driver are still
          * attached. If so, detach them to be able to kill the driver
          * afterwards.
          */
-        down(&i2c_adapter_class.sem);
-        list_for_each_entry(adap, &i2c_adapter_class.devices, dev.node) {
-                if (driver->detach_adapter) {
-                        if (driver->detach_adapter(adap)) {
-                                dev_err(&adap->dev, "detach_adapter failed "
-                                        "for driver [%s]\n",
-                                        driver->driver.name);
-                        }
-                } else {
-                        list_for_each_safe(item2, _n, &adap->clients) {
-                                client = list_entry(item2, struct i2c_client, list);
-                                if (client->driver != driver)
-                                        continue;
-                                dev_dbg(&adap->dev, "detaching client [%s] "
-                                        "at 0x%02x\n", client->name,
-                                        client->addr);
-                                if (driver->detach_client(client)) {
-                                        dev_err(&adap->dev, "detach_client "
-                                                "failed for client [%s] at "
-                                                "0x%02x\n", client->name,
-                                                client->addr);
-                                }
-                        }
+        if (driver->detach_adapter) {
+                if (driver->detach_adapter(adapter))
+                        dev_err(&adapter->dev,
+                                "detach_adapter failed for driver [%s]\n",
+                                driver->driver.name);
+        } else {
+                struct i2c_client *client, *_n;
+
+                list_for_each_entry_safe(client, _n, &adapter->clients, list) {
+                        if (client->driver != driver)
+                                continue;
+                        dev_dbg(&adapter->dev,
+                                "detaching client [%s] at 0x%02x\n",
+                                client->name, client->addr);
+                        if (driver->detach_client(client))
+                                dev_err(&adapter->dev, "detach_client "
+                                        "failed for client [%s] at 0x%02x\n",
+                                        client->name, client->addr);
                 }
         }
-        up(&i2c_adapter_class.sem);
 
- unregister:
+        return 0;
+}
+
+/**
+ * i2c_del_driver - unregister I2C driver
+ * @driver: the driver being unregistered
+ * Context: can sleep
+ */
+void i2c_del_driver(struct i2c_driver *driver)
+{
+        mutex_lock(&core_lock);
+
+        class_for_each_device(&i2c_adapter_class, driver, __detach_adapter);
+
         driver_unregister(&driver->driver);
         pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name);
 
@@ -863,8 +892,9 @@ EXPORT_SYMBOL(i2c_detach_client);
  */
 struct i2c_client *i2c_use_client(struct i2c_client *client)
 {
-        get_device(&client->dev);
-        return client;
+        if (client && get_device(&client->dev))
+                return client;
+        return NULL;
 }
 EXPORT_SYMBOL(i2c_use_client);
 
@@ -876,7 +906,8 @@ EXPORT_SYMBOL(i2c_use_client);
  */
 void i2c_release_client(struct i2c_client *client)
 {
-        put_device(&client->dev);
+        if (client)
+                put_device(&client->dev);
 }
 EXPORT_SYMBOL(i2c_release_client);
 
@@ -942,10 +973,39 @@ module_exit(i2c_exit);
  * ----------------------------------------------------
  */
 
+/**
+ * i2c_transfer - execute a single or combined I2C message
+ * @adap: Handle to I2C bus
+ * @msgs: One or more messages to execute before STOP is issued to
+ *      terminate the operation; each message begins with a START.
+ * @num: Number of messages to be executed.
+ *
+ * Returns negative errno, else the number of messages executed.
+ *
+ * Note that there is no requirement that each message be sent to
+ * the same slave address, although that is the most common model.
+ */
 int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num)
 {
         int ret;
 
+        /* REVISIT the fault reporting model here is weak:
+         *
+         *  - When we get an error after receiving N bytes from a slave,
+         *    there is no way to report "N".
+         *
+         *  - When we get a NAK after transmitting N bytes to a slave,
+         *    there is no way to report "N" ... or to let the master
+         *    continue executing the rest of this combined message, if
+         *    that's the appropriate response.
+         *
+         *  - When for example "num" is two and we successfully complete
+         *    the first message but get an error part way through the
+         *    second, it's unclear whether that should be reported as
+         *    one (discarding status on the second message) or errno
+         *    (discarding status on the first one).
+         */
+
         if (adap->algo->master_xfer) {
 #ifdef DEBUG
                 for (ret = 0; ret < num; ret++) {
@@ -971,11 +1031,19 @@ int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num)
                 return ret;
         } else {
                 dev_dbg(&adap->dev, "I2C level transfers not supported\n");
-                return -ENOSYS;
+                return -EOPNOTSUPP;
         }
 }
 EXPORT_SYMBOL(i2c_transfer);
 
+/**
+ * i2c_master_send - issue a single I2C message in master transmit mode
+ * @client: Handle to slave device
+ * @buf: Data that will be written to the slave
+ * @count: How many bytes to write
+ *
+ * Returns negative errno, or else the number of bytes written.
+ */
 int i2c_master_send(struct i2c_client *client,const char *buf ,int count)
 {
         int ret;
@@ -995,6 +1063,14 @@ int i2c_master_send(struct i2c_client *client,const char *buf ,int count)
 }
 EXPORT_SYMBOL(i2c_master_send);
 
+/**
+ * i2c_master_recv - issue a single I2C message in master receive mode
+ * @client: Handle to slave device
+ * @buf: Where to store data read from slave
+ * @count: How many bytes to read
+ *
+ * Returns negative errno, or else the number of bytes read.
+ */
 int i2c_master_recv(struct i2c_client *client, char *buf ,int count)
 {
         struct i2c_adapter *adap=client->adapter;
@@ -1103,7 +1179,7 @@ int i2c_probe(struct i2c_adapter *adapter,
 
                 dev_warn(&adapter->dev, "SMBus Quick command not supported, "
                          "can't probe for chips\n");
-                return -1;
+                return -EOPNOTSUPP;
         }
 
         /* Probe entries are done second, and are not affected by ignore
@@ -1157,6 +1233,179 @@ int i2c_probe(struct i2c_adapter *adapter,
 }
 EXPORT_SYMBOL(i2c_probe);
 
+/* Separate detection function for new-style drivers */
+static int i2c_detect_address(struct i2c_client *temp_client, int kind,
+                              struct i2c_driver *driver)
+{
+        struct i2c_board_info info;
+        struct i2c_adapter *adapter = temp_client->adapter;
+        int addr = temp_client->addr;
+        int err;
+
+        /* Make sure the address is valid */
+        if (addr < 0x03 || addr > 0x77) {
+                dev_warn(&adapter->dev, "Invalid probe address 0x%02x\n",
+                         addr);
+                return -EINVAL;
+        }
+
+        /* Skip if already in use */
+        if (i2c_check_addr(adapter, addr))
+                return 0;
+
+        /* Make sure there is something at this address, unless forced */
+        if (kind < 0) {
+                if (i2c_smbus_xfer(adapter, addr, 0, 0, 0,
+                                   I2C_SMBUS_QUICK, NULL) < 0)
+                        return 0;
+
+                /* prevent 24RF08 corruption */
+                if ((addr & ~0x0f) == 0x50)
+                        i2c_smbus_xfer(adapter, addr, 0, 0, 0,
+                                       I2C_SMBUS_QUICK, NULL);
+        }
+
+        /* Finally call the custom detection function */
+        memset(&info, 0, sizeof(struct i2c_board_info));
+        info.addr = addr;
+        err = driver->detect(temp_client, kind, &info);
+        if (err) {
+                /* -ENODEV is returned if the detection fails. We catch it
+                   here as this isn't an error. */
+                return err == -ENODEV ? 0 : err;
+        }
+
+        /* Consistency check */
+        if (info.type[0] == '\0') {
+                dev_err(&adapter->dev, "%s detection function provided "
+                        "no name for 0x%x\n", driver->driver.name,
+                        addr);
+        } else {
+                struct i2c_client *client;
+
+                /* Detection succeeded, instantiate the device */
+                dev_dbg(&adapter->dev, "Creating %s at 0x%02x\n",
+                        info.type, info.addr);
+                client = i2c_new_device(adapter, &info);
+                if (client)
+                        list_add_tail(&client->detected, &driver->clients);
+                else
+                        dev_err(&adapter->dev, "Failed creating %s at 0x%02x\n",
+                                info.type, info.addr);
+        }
+        return 0;
+}
+
+static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
+{
+        const struct i2c_client_address_data *address_data;
+        struct i2c_client *temp_client;
+        int i, err = 0;
+        int adap_id = i2c_adapter_id(adapter);
+
+        address_data = driver->address_data;
+        if (!driver->detect || !address_data)
+                return 0;
+
+        /* Set up a temporary client to help detect callback */
+        temp_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
+        if (!temp_client)
+                return -ENOMEM;
+        temp_client->adapter = adapter;
+
+        /* Force entries are done first, and are not affected by ignore
+           entries */
+        if (address_data->forces) {
+                const unsigned short * const *forces = address_data->forces;
+                int kind;
+
+                for (kind = 0; forces[kind]; kind++) {
+                        for (i = 0; forces[kind][i] != I2C_CLIENT_END;
+                             i += 2) {
+                                if (forces[kind][i] == adap_id
+                                 || forces[kind][i] == ANY_I2C_BUS) {
+                                        dev_dbg(&adapter->dev, "found force "
+                                                "parameter for adapter %d, "
+                                                "addr 0x%02x, kind %d\n",
+                                                adap_id, forces[kind][i + 1],
+                                                kind);
+                                        temp_client->addr = forces[kind][i + 1];
+                                        err = i2c_detect_address(temp_client,
+                                                kind, driver);
+                                        if (err)
+                                                goto exit_free;
+                                }
+                        }
+                }
+        }
+
+        /* Stop here if we can't use SMBUS_QUICK */
+        if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) {
+                if (address_data->probe[0] == I2C_CLIENT_END
+                 && address_data->normal_i2c[0] == I2C_CLIENT_END)
+                        goto exit_free;
+
+                dev_warn(&adapter->dev, "SMBus Quick command not supported, "
+                         "can't probe for chips\n");
+                err = -EOPNOTSUPP;
+                goto exit_free;
+        }
+
+        /* Stop here if the classes do not match */
+        if (!(adapter->class & driver->class))
+                goto exit_free;
+
+        /* Probe entries are done second, and are not affected by ignore
+           entries either */
+        for (i = 0; address_data->probe[i] != I2C_CLIENT_END; i += 2) {
+                if (address_data->probe[i] == adap_id
+                 || address_data->probe[i] == ANY_I2C_BUS) {
+                        dev_dbg(&adapter->dev, "found probe parameter for "
+                                "adapter %d, addr 0x%02x\n", adap_id,
+                                address_data->probe[i + 1]);
+                        temp_client->addr = address_data->probe[i + 1];
+                        err = i2c_detect_address(temp_client, -1, driver);
+                        if (err)
+                                goto exit_free;
+                }
+        }
+
+        /* Normal entries are done last, unless shadowed by an ignore entry */
+        for (i = 0; address_data->normal_i2c[i] != I2C_CLIENT_END; i += 1) {
+                int j, ignore;
+
+                ignore = 0;
+                for (j = 0; address_data->ignore[j] != I2C_CLIENT_END;
+                     j += 2) {
+                        if ((address_data->ignore[j] == adap_id ||
+                             address_data->ignore[j] == ANY_I2C_BUS)
+                         && address_data->ignore[j + 1]
+                            == address_data->normal_i2c[i]) {
+                                dev_dbg(&adapter->dev, "found ignore "
+                                        "parameter for adapter %d, "
+                                        "addr 0x%02x\n", adap_id,
+                                        address_data->ignore[j + 1]);
+                                ignore = 1;
+                                break;
+                        }
+                }
+                if (ignore)
+                        continue;
+
+                dev_dbg(&adapter->dev, "found normal entry for adapter %d, "
+                        "addr 0x%02x\n", adap_id,
+                        address_data->normal_i2c[i]);
+                temp_client->addr = address_data->normal_i2c[i];
+                err = i2c_detect_address(temp_client, -1, driver);
+                if (err)
+                        goto exit_free;
+        }
+
+ exit_free:
+        kfree(temp_client);
+        return err;
+}
+
 struct i2c_client *
 i2c_new_probed_device(struct i2c_adapter *adap,
                       struct i2c_board_info *info,
@@ -1295,29 +1544,38 @@ static int i2c_smbus_check_pec(u8 cpec, struct i2c_msg *msg)
         if (rpec != cpec) {
                 pr_debug("i2c-core: Bad PEC 0x%02x vs. 0x%02x\n",
                         rpec, cpec);
-                return -1;
+                return -EBADMSG;
         }
         return 0;
 }
 
-s32 i2c_smbus_write_quick(struct i2c_client *client, u8 value)
-{
-        return i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-                              value,0,I2C_SMBUS_QUICK,NULL);
-}
-EXPORT_SYMBOL(i2c_smbus_write_quick);
-
+/**
+ * i2c_smbus_read_byte - SMBus "receive byte" protocol
+ * @client: Handle to slave device
+ *
+ * This executes the SMBus "receive byte" protocol, returning negative errno
+ * else the byte received from the device.
+ */
 s32 i2c_smbus_read_byte(struct i2c_client *client)
 {
         union i2c_smbus_data data;
-        if (i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-                           I2C_SMBUS_READ,0,I2C_SMBUS_BYTE, &data))
-                return -1;
-        else
-                return data.byte;
+        int status;
+
+        status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+                                I2C_SMBUS_READ, 0,
+                                I2C_SMBUS_BYTE, &data);
+        return (status < 0) ? status : data.byte;
 }
 EXPORT_SYMBOL(i2c_smbus_read_byte);
 
+/**
+ * i2c_smbus_write_byte - SMBus "send byte" protocol
+ * @client: Handle to slave device
+ * @value: Byte to be sent
+ *
+ * This executes the SMBus "send byte" protocol, returning negative errno
+ * else zero on success.
+ */
 s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value)
 {
         return i2c_smbus_xfer(client->adapter,client->addr,client->flags,
@@ -1325,17 +1583,35 @@ s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value)
 }
 EXPORT_SYMBOL(i2c_smbus_write_byte);
 
+/**
+ * i2c_smbus_read_byte_data - SMBus "read byte" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ *
+ * This executes the SMBus "read byte" protocol, returning negative errno
+ * else a data byte received from the device.
+ */
 s32 i2c_smbus_read_byte_data(struct i2c_client *client, u8 command)
 {
         union i2c_smbus_data data;
-        if (i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-                           I2C_SMBUS_READ,command, I2C_SMBUS_BYTE_DATA,&data))
-                return -1;
-        else
-                return data.byte;
+        int status;
+
+        status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+                                I2C_SMBUS_READ, command,
+                                I2C_SMBUS_BYTE_DATA, &data);
+        return (status < 0) ? status : data.byte;
 }
 EXPORT_SYMBOL(i2c_smbus_read_byte_data);
 
+/**
+ * i2c_smbus_write_byte_data - SMBus "write byte" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @value: Byte being written
+ *
+ * This executes the SMBus "write byte" protocol, returning negative errno
+ * else zero on success.
+ */
 s32 i2c_smbus_write_byte_data(struct i2c_client *client, u8 command, u8 value)
 {
         union i2c_smbus_data data;
@@ -1346,17 +1622,35 @@ s32 i2c_smbus_write_byte_data(struct i2c_client *client, u8 command, u8 value)
 }
 EXPORT_SYMBOL(i2c_smbus_write_byte_data);
 
+/**
+ * i2c_smbus_read_word_data - SMBus "read word" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ *
+ * This executes the SMBus "read word" protocol, returning negative errno
+ * else a 16-bit unsigned "word" received from the device.
+ */
 s32 i2c_smbus_read_word_data(struct i2c_client *client, u8 command)
 {
         union i2c_smbus_data data;
-        if (i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-                           I2C_SMBUS_READ,command, I2C_SMBUS_WORD_DATA, &data))
-                return -1;
-        else
-                return data.word;
+        int status;
+
+        status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+                                I2C_SMBUS_READ, command,
+                                I2C_SMBUS_WORD_DATA, &data);
+        return (status < 0) ? status : data.word;
 }
 EXPORT_SYMBOL(i2c_smbus_read_word_data);
 
+/**
+ * i2c_smbus_write_word_data - SMBus "write word" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @value: 16-bit "word" being written
+ *
+ * This executes the SMBus "write word" protocol, returning negative errno
+ * else zero on success.
+ */
 s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value)
 {
         union i2c_smbus_data data;
@@ -1368,15 +1662,14 @@ s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value)
 EXPORT_SYMBOL(i2c_smbus_write_word_data);
 
 /**
- * i2c_smbus_read_block_data - SMBus block read request
+ * i2c_smbus_read_block_data - SMBus "block read" protocol
  * @client: Handle to slave device
- * @command: Command byte issued to let the slave know what data should
- *      be returned
+ * @command: Byte interpreted by slave
  * @values: Byte array into which data will be read; big enough to hold
  *      the data returned by the slave.  SMBus allows at most 32 bytes.
  *
- * Returns the number of bytes read in the slave's response, else a
- * negative number to indicate some kind of error.
+ * This executes the SMBus "block read" protocol, returning negative errno
+ * else the number of data bytes in the slave's response.
  *
  * Note that using this function requires that the client's adapter support
  * the I2C_FUNC_SMBUS_READ_BLOCK_DATA functionality.  Not all adapter drivers
@@ -1387,17 +1680,29 @@ s32 i2c_smbus_read_block_data(struct i2c_client *client, u8 command,
                               u8 *values)
 {
         union i2c_smbus_data data;
+        int status;
 
-        if (i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-                           I2C_SMBUS_READ, command,
-                           I2C_SMBUS_BLOCK_DATA, &data))
-                return -1;
+        status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+                                I2C_SMBUS_READ, command,
+                                I2C_SMBUS_BLOCK_DATA, &data);
+        if (status)
+                return status;
 
         memcpy(values, &data.block[1], data.block[0]);
         return data.block[0];
 }
 EXPORT_SYMBOL(i2c_smbus_read_block_data);
 
+/**
+ * i2c_smbus_write_block_data - SMBus "block write" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @length: Size of data block; SMBus allows at most 32 bytes
+ * @values: Byte array which will be written.
+ *
+ * This executes the SMBus "block write" protocol, returning negative errno
+ * else zero on success.
+ */
 s32 i2c_smbus_write_block_data(struct i2c_client *client, u8 command,
                                u8 length, const u8 *values)
 {
@@ -1418,14 +1723,16 @@ s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, u8 command,
                                   u8 length, u8 *values)
 {
         union i2c_smbus_data data;
+        int status;
 
         if (length > I2C_SMBUS_BLOCK_MAX)
                 length = I2C_SMBUS_BLOCK_MAX;
         data.block[0] = length;
-        if (i2c_smbus_xfer(client->adapter,client->addr,client->flags,
-                              I2C_SMBUS_READ,command,
-                              I2C_SMBUS_I2C_BLOCK_DATA,&data))
-                return -1;
+        status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+                                I2C_SMBUS_READ, command,
+                                I2C_SMBUS_I2C_BLOCK_DATA, &data);
+        if (status < 0)
+                return status;
 
         memcpy(values, &data.block[1], data.block[0]);
         return data.block[0];
@@ -1466,6 +1773,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
                                 };
         int i;
         u8 partial_pec = 0;
+        int status;
 
         msgbuf0[0] = command;
         switch(size) {
@@ -1515,10 +1823,10 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
                 } else {
                         msg[0].len = data->block[0] + 2;
                         if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 2) {
-                                dev_err(&adapter->dev, "smbus_access called with "
-                                       "invalid block write size (%d)\n",
-                                       data->block[0]);
-                                return -1;
+                                dev_err(&adapter->dev,
+                                        "Invalid block write size %d\n",
+                                        data->block[0]);
+                                return -EINVAL;
                         }
                         for (i = 1; i < msg[0].len; i++)
                                 msgbuf0[i] = data->block[i-1];
@@ -1528,10 +1836,10 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
                 num = 2; /* Another special case */
                 read_write = I2C_SMBUS_READ;
                 if (data->block[0] > I2C_SMBUS_BLOCK_MAX) {
-                        dev_err(&adapter->dev, "%s called with invalid "
-                                "block proc call size (%d)\n", __func__,
+                        dev_err(&adapter->dev,
+                                "Invalid block write size %d\n",
                                 data->block[0]);
-                        return -1;
+                        return -EINVAL;
                 }
                 msg[0].len = data->block[0] + 2;
                 for (i = 1; i < msg[0].len; i++)
@@ -1546,19 +1854,18 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
                 } else {
                         msg[0].len = data->block[0] + 1;
                         if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) {
-                                dev_err(&adapter->dev, "i2c_smbus_xfer_emulated called with "
-                                       "invalid block write size (%d)\n",
-                                       data->block[0]);
-                                return -1;
+                                dev_err(&adapter->dev,
+                                        "Invalid block write size %d\n",
+                                        data->block[0]);
+                                return -EINVAL;
                         }
                         for (i = 1; i <= data->block[0]; i++)
                                 msgbuf0[i] = data->block[i];
                 }
                 break;
         default:
-                dev_err(&adapter->dev, "smbus_access called with invalid size (%d)\n",
-                       size);
-                return -1;
+                dev_err(&adapter->dev, "Unsupported transaction %d\n", size);
+                return -EOPNOTSUPP;
         }
 
         i = ((flags & I2C_CLIENT_PEC) && size != I2C_SMBUS_QUICK
@@ -1576,13 +1883,15 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
                         msg[num-1].len++;
         }
 
-        if (i2c_transfer(adapter, msg, num) < 0)
-                return -1;
+        status = i2c_transfer(adapter, msg, num);
+        if (status < 0)
+                return status;
 
         /* Check PEC if last message is a read */
         if (i && (msg[num-1].flags & I2C_M_RD)) {
-                if (i2c_smbus_check_pec(partial_pec, &msg[num-1]) < 0)
-                        return -1;
+                status = i2c_smbus_check_pec(partial_pec, &msg[num-1]);
+                if (status < 0)
+                        return status;
         }
 
         if (read_write == I2C_SMBUS_READ)
@@ -1610,9 +1919,21 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
         return 0;
 }
 
-
+/**
+ * i2c_smbus_xfer - execute SMBus protocol operations
+ * @adapter: Handle to I2C bus
+ * @addr: Address of SMBus slave on that bus
+ * @flags: I2C_CLIENT_* flags (usually zero or I2C_CLIENT_PEC)
+ * @read_write: I2C_SMBUS_READ or I2C_SMBUS_WRITE
+ * @command: Byte interpreted by slave, for protocols which use such bytes
+ * @protocol: SMBus protocol operation to execute, such as I2C_SMBUS_PROC_CALL
+ * @data: Data to be read or written
+ *
+ * This executes an SMBus protocol operation, and returns a negative
+ * errno code else zero on success.
+ */
 s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags,
-                   char read_write, u8 command, int size,
+                   char read_write, u8 command, int protocol,
                    union i2c_smbus_data * data)
 {
         s32 res;
@@ -1622,11 +1943,11 @@ s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags,
         if (adapter->algo->smbus_xfer) {
                 mutex_lock(&adapter->bus_lock);
                 res = adapter->algo->smbus_xfer(adapter,addr,flags,read_write,
-                                                command,size,data);
+                                                command, protocol, data);
                 mutex_unlock(&adapter->bus_lock);
         } else
                 res = i2c_smbus_xfer_emulated(adapter,addr,flags,read_write,
-                                              command,size,data);
+                                              command, protocol, data);
 
         return res;
 }
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 006a5857256..86727fa8858 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -367,8 +367,7 @@ static noinline int i2cdev_ioctl_smbus(struct i2c_client *client,
         return res;
 }
 
-static int i2cdev_ioctl(struct inode *inode, struct file *file,
-                unsigned int cmd, unsigned long arg)
+static long i2cdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
         struct i2c_client *client = (struct i2c_client *)file->private_data;
         unsigned long funcs;
@@ -497,7 +496,7 @@ static const struct file_operations i2cdev_fops = {
         .llseek         = no_llseek,
         .read           = i2cdev_read,
         .write          = i2cdev_write,
-        .ioctl          = i2cdev_ioctl,
+        .unlocked_ioctl = i2cdev_ioctl,
         .open           = i2cdev_open,
         .release        = i2cdev_release,
 };
@@ -559,19 +558,12 @@ static int i2cdev_detach_adapter(struct i2c_adapter *adap)
         return 0;
 }
 
-static int i2cdev_detach_client(struct i2c_client *client)
-{
-        return 0;
-}
-
 static struct i2c_driver i2cdev_driver = {
         .driver = {
                 .name   = "dev_driver",
         },
-        .id             = I2C_DRIVERID_I2CDEV,
         .attach_adapter = i2cdev_attach_adapter,
         .detach_adapter = i2cdev_detach_adapter,
-        .detach_client  = i2cdev_detach_client,
 };
 
 /* ------------------------------------------------------------------------- */
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 1607536ff5f..cf707c8f08d 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -98,6 +98,9 @@ if BLK_DEV_IDE
 
 comment "Please see Documentation/ide/ide.txt for help/info on IDE drives"
 
+config IDE_ATAPI
+        bool
+
 config BLK_DEV_IDE_SATA
         bool "Support for SATA (deprecated; conflicts with libata SATA driver)"
         default n
@@ -201,6 +204,7 @@ config BLK_DEV_IDECD_VERBOSE_ERRORS
 
 config BLK_DEV_IDETAPE
         tristate "Include IDE/ATAPI TAPE support"
+        select IDE_ATAPI
         help
           If you have an IDE tape drive using the ATAPI protocol, say Y.
           ATAPI is a newer protocol used by IDE tape and CD-ROM drives,
@@ -223,6 +227,7 @@ config BLK_DEV_IDETAPE
 
 config BLK_DEV_IDEFLOPPY
         tristate "Include IDE/ATAPI FLOPPY support"
+        select IDE_ATAPI
         ---help---
           If you have an IDE floppy drive which uses the ATAPI protocol,
           answer Y.  ATAPI is a newer protocol used by IDE CD-ROM/tape/floppy
@@ -246,6 +251,7 @@ config BLK_DEV_IDEFLOPPY
 config BLK_DEV_IDESCSI
         tristate "SCSI emulation support"
         depends on SCSI
+        select IDE_ATAPI
         ---help---
           WARNING: ide-scsi is no longer needed for cd writing applications!
           The 2.6 kernel supports direct writing to ide-cd, which eliminates
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index f94b679b611..a2b3f84d710 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -14,6 +14,7 @@ EXTRA_CFLAGS				+= -Idrivers/ide
 ide-core-y += ide.o ide-io.o ide-iops.o ide-lib.o ide-probe.o ide-taskfile.o
 
 # core IDE code
+ide-core-$(CONFIG_IDE_ATAPI)            += ide-atapi.o
 ide-core-$(CONFIG_BLK_DEV_IDEPCI)       += setup-pci.o
 ide-core-$(CONFIG_BLK_DEV_IDEDMA)       += ide-dma.o
 ide-core-$(CONFIG_IDE_PROC_FS)          += ide-proc.o
diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c
index 2f2b4f4cf22..3839f572298 100644
--- a/drivers/ide/arm/palm_bk3710.c
+++ b/drivers/ide/arm/palm_bk3710.c
@@ -83,7 +83,7 @@ static const struct palm_bk3710_udmatiming palm_bk3710_udmatimings[6] = {
         {125, 160},             /* UDMA Mode 1 */
         {100, 120},             /* UDMA Mode 2 */
         {100, 90},              /* UDMA Mode 3 */
-        {85,  60},              /* UDMA Mode 4 */
+        {100, 60},              /* UDMA Mode 4 */
 };
 
 static void palm_bk3710_setudmamode(void __iomem *base, unsigned int dev,
@@ -405,7 +405,6 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev)
         ide_init_port_data(hwif, i);
         ide_init_port_hw(hwif, &hw);
 
-        hwif->mmio = 1;
         default_hwif_mmiops(hwif);
 
         idx[0] = i;
diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index ecf53bb0d2a..ae37ee58bae 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -52,8 +52,6 @@ static void h8300_tf_load(ide_drive_t *drive, ide_task_t *task)
         if (task->tf_flags & IDE_TFLAG_FLAGGED)
                 HIHI = 0xFF;
 
-        ide_set_irq(drive, 1);
-
         if (task->tf_flags & IDE_TFLAG_OUT_DATA)
                 mm_outw((tf->hob_data << 8) | tf->data, io_ports->data_addr);
 
@@ -98,7 +96,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task)
         }
 
         /* be sure we're looking at the low order bits */
-        outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+        outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
         if (task->tf_flags & IDE_TFLAG_IN_NSECT)
                 tf->nsect  = inb(io_ports->nsect_addr);
@@ -112,7 +110,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task)
                 tf->device = inb(io_ports->device_addr);
 
         if (task->tf_flags & IDE_TFLAG_LBA48) {
-                outb(drive->ctl | 0x80, io_ports->ctl_addr);
+                outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
                 if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
                         tf->hob_feature = inb(io_ports->feature_addr);
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 9d3601fa568..6f704628c27 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -60,15 +60,15 @@ struct ide_acpi_hwif_link {
 #define DEBPRINT(fmt, args...)  do {} while (0)
 #endif  /* DEBUGGING */
 
-int ide_noacpi;
+static int ide_noacpi;
 module_param_named(noacpi, ide_noacpi, bool, 0);
 MODULE_PARM_DESC(noacpi, "disable IDE ACPI support");
 
-int ide_acpigtf;
+static int ide_acpigtf;
 module_param_named(acpigtf, ide_acpigtf, bool, 0);
 MODULE_PARM_DESC(acpigtf, "enable IDE ACPI _GTF support");
 
-int ide_acpionboot;
+static int ide_acpionboot;
 module_param_named(acpionboot, ide_acpionboot, bool, 0);
 MODULE_PARM_DESC(acpionboot, "call IDE ACPI methods on boot");
 
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
new file mode 100644
index 00000000000..2802031de67
--- /dev/null
+++ b/drivers/ide/ide-atapi.c
@@ -0,0 +1,296 @@
+/*
+ * ATAPI support.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <scsi/scsi.h>
+
+#ifdef DEBUG
+#define debug_log(fmt, args...) \
+        printk(KERN_INFO "ide: " fmt, ## args)
+#else
+#define debug_log(fmt, args...) do {} while (0)
+#endif
+
+/* TODO: unify the code thus making some arguments go away */
+ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc,
+        ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry,
+        void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
+        void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *),
+        void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int))
+{
+        ide_hwif_t *hwif = drive->hwif;
+        xfer_func_t *xferfunc;
+        unsigned int temp;
+        u16 bcount;
+        u8 stat, ireason, scsi = drive->scsi;
+
+        debug_log("Enter %s - interrupt handler\n", __func__);
+
+        if (pc->flags & PC_FLAG_TIMEDOUT) {
+                pc->callback(drive);
+                return ide_stopped;
+        }
+
+        /* Clear the interrupt */
+        stat = ide_read_status(drive);
+
+        if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
+                if (hwif->dma_ops->dma_end(drive) ||
+                    (drive->media == ide_tape && !scsi && (stat & ERR_STAT))) {
+                        if (drive->media == ide_floppy && !scsi)
+                                printk(KERN_ERR "%s: DMA %s error\n",
+                                        drive->name, rq_data_dir(pc->rq)
+                                                     ? "write" : "read");
+                        pc->flags |= PC_FLAG_DMA_ERROR;
+                } else {
+                        pc->xferred = pc->req_xfer;
+                        if (update_buffers)
+                                update_buffers(drive, pc);
+                }
+                debug_log("%s: DMA finished\n", drive->name);
+        }
+
+        /* No more interrupts */
+        if ((stat & DRQ_STAT) == 0) {
+                debug_log("Packet command completed, %d bytes transferred\n",
+                          pc->xferred);
+
+                pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
+
+                local_irq_enable_in_hardirq();
+
+                if (drive->media == ide_tape && !scsi &&
+                    (stat & ERR_STAT) && pc->c[0] == REQUEST_SENSE)
+                        stat &= ~ERR_STAT;
+                if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) {
+                        /* Error detected */
+                        debug_log("%s: I/O error\n", drive->name);
+
+                        if (drive->media != ide_tape || scsi) {
+                                pc->rq->errors++;
+                                if (scsi)
+                                        goto cmd_finished;
+                        }
+
+                        if (pc->c[0] == REQUEST_SENSE) {
+                                printk(KERN_ERR "%s: I/O error in request sense"
+                                                " command\n", drive->name);
+                                return ide_do_reset(drive);
+                        }
+
+                        debug_log("[cmd %x]: check condition\n", pc->c[0]);
+
+                        /* Retry operation */
+                        retry_pc(drive);
+                        /* queued, but not started */
+                        return ide_stopped;
+                }
+cmd_finished:
+                pc->error = 0;
+                if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) &&
+                    (stat & SEEK_STAT) == 0) {
+                        dsc_handle(drive);
+                        return ide_stopped;
+                }
+                /* Command finished - Call the callback function */
+                pc->callback(drive);
+                return ide_stopped;
+        }
+
+        if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
+                pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
+                printk(KERN_ERR "%s: The device wants to issue more interrupts "
+                                "in DMA mode\n", drive->name);
+                ide_dma_off(drive);
+                return ide_do_reset(drive);
+        }
+        /* Get the number of bytes to transfer on this interrupt. */
+        bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) |
+                  hwif->INB(hwif->io_ports.lbam_addr);
+
+        ireason = hwif->INB(hwif->io_ports.nsect_addr);
+
+        if (ireason & CD) {
+                printk(KERN_ERR "%s: CoD != 0 in %s\n", drive->name, __func__);
+                return ide_do_reset(drive);
+        }
+        if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) {
+                /* Hopefully, we will never get here */
+                printk(KERN_ERR "%s: We wanted to %s, but the device wants us "
+                                "to %s!\n", drive->name,
+                                (ireason & IO) ? "Write" : "Read",
+                                (ireason & IO) ? "Read" : "Write");
+                return ide_do_reset(drive);
+        }
+        if (!(pc->flags & PC_FLAG_WRITING)) {
+                /* Reading - Check that we have enough space */
+                temp = pc->xferred + bcount;
+                if (temp > pc->req_xfer) {
+                        if (temp > pc->buf_size) {
+                                printk(KERN_ERR "%s: The device wants to send "
+                                                "us more data than expected - "
+                                                "discarding data\n",
+                                                drive->name);
+                                if (scsi)
+                                        temp = pc->buf_size - pc->xferred;
+                                else
+                                        temp = 0;
+                                if (temp) {
+                                        if (pc->sg)
+                                                io_buffers(drive, pc, temp, 0);
+                                        else
+                                                hwif->input_data(drive, NULL,
+                                                        pc->cur_pos, temp);
+                                        printk(KERN_ERR "%s: transferred %d of "
+                                                        "%d bytes\n",
+                                                        drive->name,
+                                                        temp, bcount);
+                                }
+                                pc->xferred += temp;
+                                pc->cur_pos += temp;
+                                ide_pad_transfer(drive, 0, bcount - temp);
+                                ide_set_handler(drive, handler, timeout,
+                                                expiry);
+                                return ide_started;
+                        }
+                        debug_log("The device wants to send us more data than "
+                                  "expected - allowing transfer\n");
+                }
+                xferfunc = hwif->input_data;
+        } else
+                xferfunc = hwif->output_data;
+
+        if ((drive->media == ide_floppy && !scsi && !pc->buf) ||
+            (drive->media == ide_tape && !scsi && pc->bh) ||
+            (scsi && pc->sg))
+                io_buffers(drive, pc, bcount, !!(pc->flags & PC_FLAG_WRITING));
+        else
+                xferfunc(drive, NULL, pc->cur_pos, bcount);
+
+        /* Update the current position */
+        pc->xferred += bcount;
+        pc->cur_pos += bcount;
+
+        debug_log("[cmd %x] transferred %d bytes on that intr.\n",
+                  pc->c[0], bcount);
+
+        /* And set the interrupt handler again */
+        ide_set_handler(drive, handler, timeout, expiry);
+        return ide_started;
+}
+EXPORT_SYMBOL_GPL(ide_pc_intr);
+
+static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason)
+{
+        ide_hwif_t *hwif = drive->hwif;
+        int retries = 100;
+
+        while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) {
+                printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing "
+                                "a packet command, retrying\n", drive->name);
+                udelay(100);
+                ireason = hwif->INB(hwif->io_ports.nsect_addr);
+                if (retries == 0) {
+                        printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing "
+                                        "a packet command, ignoring\n",
+                                        drive->name);
+                        ireason |= CD;
+                        ireason &= ~IO;
+                }
+        }
+
+        return ireason;
+}
+
+ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc,
+                                ide_handler_t *handler, unsigned int timeout,
+                                ide_expiry_t *expiry)
+{
+        ide_hwif_t *hwif = drive->hwif;
+        ide_startstop_t startstop;
+        u8 ireason;
+
+        if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) {
+                printk(KERN_ERR "%s: Strange, packet command initiated yet "
+                                "DRQ isn't asserted\n", drive->name);
+                return startstop;
+        }
+
+        ireason = hwif->INB(hwif->io_ports.nsect_addr);
+        if (drive->media == ide_tape && !drive->scsi)
+                ireason = ide_wait_ireason(drive, ireason);
+
+        if ((ireason & CD) == 0 || (ireason & IO)) {
+                printk(KERN_ERR "%s: (IO,CoD) != (0,1) while issuing "
+                                "a packet command\n", drive->name);
+                return ide_do_reset(drive);
+        }
+
+        /* Set the interrupt routine */
+        ide_set_handler(drive, handler, timeout, expiry);
+
+        /* Begin DMA, if necessary */
+        if (pc->flags & PC_FLAG_DMA_OK) {
+                pc->flags |= PC_FLAG_DMA_IN_PROGRESS;
+                hwif->dma_ops->dma_start(drive);
+        }
+
+        /* Send the actual packet */
+        if ((pc->flags & PC_FLAG_ZIP_DRIVE) == 0)
+                hwif->output_data(drive, NULL, pc->c, 12);
+
+        return ide_started;
+}
+EXPORT_SYMBOL_GPL(ide_transfer_pc);
+
+ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc,
+                             ide_handler_t *handler, unsigned int timeout,
+                             ide_expiry_t *expiry)
+{
+        ide_hwif_t *hwif = drive->hwif;
+        u16 bcount;
+        u8 dma = 0;
+
+        /* We haven't transferred any data yet */
+        pc->xferred = 0;
+        pc->cur_pos = pc->buf;
+
+        /* Request to transfer the entire buffer at once */
+        if (drive->media == ide_tape && !drive->scsi)
+                bcount = pc->req_xfer;
+        else
+                bcount = min(pc->req_xfer, 63 * 1024);
+
+        if (pc->flags & PC_FLAG_DMA_ERROR) {
+                pc->flags &= ~PC_FLAG_DMA_ERROR;
+                ide_dma_off(drive);
+        }
+
+        if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) {
+                if (drive->scsi)
+                        hwif->sg_mapped = 1;
+                dma = !hwif->dma_ops->dma_setup(drive);
+                if (drive->scsi)
+                        hwif->sg_mapped = 0;
+        }
+
+        if (!dma)
+                pc->flags &= ~PC_FLAG_DMA_OK;
+
+        ide_pktcmd_tf_load(drive, drive->scsi ? 0 : IDE_TFLAG_OUT_DEVICE,
+                           bcount, dma);
+
+        /* Issue the packet command */
+        if (pc->flags & PC_FLAG_DRQ_INTERRUPT) {
+                ide_execute_command(drive, WIN_PACKETCMD, handler,
+                                    timeout, NULL);
+                return ide_started;
+        } else {
+                ide_execute_pkt_cmd(drive);
+                return (*handler)(drive);
+        }
+}
+EXPORT_SYMBOL_GPL(ide_issue_pc);
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 68e7f19dc03..d9984715718 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -188,16 +188,6 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive,
         ide_cd_log_error(drive->name, failed_command, sense);
 }
 
-/* Initialize a ide-cd packet command request */
-void ide_cd_init_rq(ide_drive_t *drive, struct request *rq)
-{
-        struct cdrom_info *cd = drive->driver_data;
-
-        ide_init_drive_cmd(rq);
-        rq->cmd_type = REQ_TYPE_ATA_PC;
-        rq->rq_disk = cd->disk;
-}
-
 static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
                                       struct request *failed_command)
 {
@@ -208,7 +198,9 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
                 sense = &info->sense_data;
 
         /* stuff the sense request in front of our current request */
-        ide_cd_init_rq(drive, rq);
+        blk_rq_init(NULL, rq);
+        rq->cmd_type = REQ_TYPE_ATA_PC;
+        rq->rq_disk = info->disk;
 
         rq->data = sense;
         rq->cmd[0] = GPCMD_REQUEST_SENSE;
@@ -216,11 +208,12 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
         rq->data_len = 18;
 
         rq->cmd_type = REQ_TYPE_SENSE;
+        rq->cmd_flags |= REQ_PREEMPT;
 
         /* NOTE! Save the failed command in "rq->buffer" */
         rq->buffer = (void *) failed_command;
 
-        (void) ide_do_drive_cmd(drive, rq, ide_preempt);
+        ide_do_drive_cmd(drive, rq);
 }
 
 static void cdrom_end_request(ide_drive_t *drive, int uptodate)
@@ -537,8 +530,8 @@ static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive,
                 info->dma = !hwif->dma_ops->dma_setup(drive);
 
         /* set up the controller registers */
-        ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL |
-                           IDE_TFLAG_NO_SELECT_MASK, xferlen, info->dma);
+        ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL,
+                           xferlen, info->dma);
 
         if (info->cd_flags & IDE_CD_FLAG_DRQ_INTERRUPT) {
                 /* waiting for CDB interrupt, not DMA yet. */
@@ -838,34 +831,54 @@ static void ide_cd_request_sense_fixup(struct request *rq)
                 }
 }
 
-int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq)
+int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
+                    int write, void *buffer, unsigned *bufflen,
+                    struct request_sense *sense, int timeout,
+                    unsigned int cmd_flags)
 {
-        struct request_sense sense;
+        struct cdrom_info *info = drive->driver_data;
+        struct request_sense local_sense;
         int retries = 10;
-        unsigned int flags = rq->cmd_flags;
+        unsigned int flags = 0;
 
-        if (rq->sense == NULL)
-                rq->sense = &sense;
+        if (!sense)
+                sense = &local_sense;
 
         /* start of retry loop */
         do {
+                struct request *rq;
                 int error;
-                unsigned long time = jiffies;
-                rq->cmd_flags = flags;
 
-                error = ide_do_drive_cmd(drive, rq, ide_wait);
-                time = jiffies - time;
+                rq = blk_get_request(drive->queue, write, __GFP_WAIT);
+
+                memcpy(rq->cmd, cmd, BLK_MAX_CDB);
+                rq->cmd_type = REQ_TYPE_ATA_PC;
+                rq->sense = sense;
+                rq->cmd_flags |= cmd_flags;
+                rq->timeout = timeout;
+                if (buffer) {
+                        rq->data = buffer;
+                        rq->data_len = *bufflen;
+                }
+
+                error = blk_execute_rq(drive->queue, info->disk, rq, 0);
+
+                if (buffer)
+                        *bufflen = rq->data_len;
+
+                flags = rq->cmd_flags;
+                blk_put_request(rq);
 
                 /*
                  * FIXME: we should probably abort/retry or something in case of
                  * failure.
                  */
-                if (rq->cmd_flags & REQ_FAILED) {
+                if (flags & REQ_FAILED) {
                         /*
                          * The request failed.  Retry if it was due to a unit
                          * attention status (usually means media was changed).
                          */
-                        struct request_sense *reqbuf = rq->sense;
+                        struct request_sense *reqbuf = sense;
 
                         if (reqbuf->sense_key == UNIT_ATTENTION)
                                 cdrom_saw_media_change(drive);
@@ -885,10 +898,10 @@ int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq)
                 }
 
                 /* end of retry loop */
-        } while ((rq->cmd_flags & REQ_FAILED) && retries >= 0);
+        } while ((flags & REQ_FAILED) && retries >= 0);
 
         /* return an error if the command failed */
-        return (rq->cmd_flags & REQ_FAILED) ? -EIO : 0;
+        return (flags & REQ_FAILED) ? -EIO : 0;
 }
 
 /*
@@ -1268,23 +1281,20 @@ static void msf_from_bcd(struct atapi_msf *msf)
 
 int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
 {
-        struct request req;
         struct cdrom_info *info = drive->driver_data;
         struct cdrom_device_info *cdi = &info->devinfo;
+        unsigned char cmd[BLK_MAX_CDB];
 
-        ide_cd_init_rq(drive, &req);
-
-        req.sense = sense;
-        req.cmd[0] = GPCMD_TEST_UNIT_READY;
-        req.cmd_flags |= REQ_QUIET;
+        memset(cmd, 0, BLK_MAX_CDB);
+        cmd[0] = GPCMD_TEST_UNIT_READY;
 
         /*
          * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs
          * instead of supporting the LOAD_UNLOAD opcode.
          */
-        req.cmd[7] = cdi->sanyo_slot % 3;
+        cmd[7] = cdi->sanyo_slot % 3;
 
-        return ide_cd_queue_pc(drive, &req);
+        return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, REQ_QUIET);
 }
 
 static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
@@ -1297,17 +1307,14 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
         } capbuf;
 
         int stat;
-        struct request req;
-
-        ide_cd_init_rq(drive, &req);
+        unsigned char cmd[BLK_MAX_CDB];
+        unsigned len = sizeof(capbuf);
 
-        req.sense = sense;
-        req.cmd[0] = GPCMD_READ_CDVD_CAPACITY;
-        req.data = (char *)&capbuf;
-        req.data_len = sizeof(capbuf);
-        req.cmd_flags |= REQ_QUIET;
+        memset(cmd, 0, BLK_MAX_CDB);
+        cmd[0] = GPCMD_READ_CDVD_CAPACITY;
 
-        stat = ide_cd_queue_pc(drive, &req);
+        stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0,
+                               REQ_QUIET);
         if (stat == 0) {
                 *capacity = 1 + be32_to_cpu(capbuf.lba);
                 *sectors_per_frame =
@@ -1321,24 +1328,20 @@ static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
                                 int format, char *buf, int buflen,
                                 struct request_sense *sense)
 {
-        struct request req;
+        unsigned char cmd[BLK_MAX_CDB];
 
-        ide_cd_init_rq(drive, &req);
+        memset(cmd, 0, BLK_MAX_CDB);
 
-        req.sense = sense;
-        req.data =  buf;
-        req.data_len = buflen;
-        req.cmd_flags |= REQ_QUIET;
-        req.cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
-        req.cmd[6] = trackno;
-        req.cmd[7] = (buflen >> 8);
-        req.cmd[8] = (buflen & 0xff);
-        req.cmd[9] = (format << 6);
+        cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
+        cmd[6] = trackno;
+        cmd[7] = (buflen >> 8);
+        cmd[8] = (buflen & 0xff);
+        cmd[9] = (format << 6);
 
         if (msf_flag)
-                req.cmd[1] = 2;
+                cmd[1] = 2;
 
-        return ide_cd_queue_pc(drive, &req);
+        return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET);
 }
 
 /* Try to read the entire TOC for the disk into our internal buffer. */
@@ -2103,11 +2106,6 @@ static int ide_cd_probe(ide_drive_t *drive)
                         goto failed;
                 }
         }
-        if (drive->scsi) {
-                printk(KERN_INFO "ide-cd: passing drive %s to ide-scsi "
-                                 "emulation.\n", drive->name);
-                goto failed;
-        }
         info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
         if (info == NULL) {
                 printk(KERN_ERR "%s: Can't allocate a cdrom structure\n",
diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h
index a58801c4484..fe0ea36e412 100644
--- a/drivers/ide/ide-cd.h
+++ b/drivers/ide/ide-cd.h
@@ -143,8 +143,8 @@ struct cdrom_info {
 void ide_cd_log_error(const char *, struct request *, struct request_sense *);
 
 /* ide-cd.c functions used by ide-cd_ioctl.c */
-void ide_cd_init_rq(ide_drive_t *, struct request *);
-int ide_cd_queue_pc(ide_drive_t *, struct request *);
+int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *,
+                    unsigned *, struct request_sense *, int, unsigned int);
 int ide_cd_read_toc(ide_drive_t *, struct request_sense *);
 int ide_cdrom_get_capabilities(ide_drive_t *, u8 *);
 void ide_cdrom_update_speed(ide_drive_t *, u8 *);
diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c
index 6d147ce6782..24d002addf7 100644
--- a/drivers/ide/ide-cd_ioctl.c
+++ b/drivers/ide/ide-cd_ioctl.c
@@ -104,8 +104,8 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag,
 {
         struct cdrom_info *cd = drive->driver_data;
         struct cdrom_device_info *cdi = &cd->devinfo;
-        struct request req;
         char loej = 0x02;
+        unsigned char cmd[BLK_MAX_CDB];
 
         if ((cd->cd_flags & IDE_CD_FLAG_NO_EJECT) && !ejectflag)
                 return -EDRIVE_CANT_DO_THIS;
@@ -114,17 +114,16 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag,
         if ((cd->cd_flags & IDE_CD_FLAG_DOOR_LOCKED) && ejectflag)
                 return 0;
 
-        ide_cd_init_rq(drive, &req);
-
         /* only tell drive to close tray if open, if it can do that */
         if (ejectflag && (cdi->mask & CDC_CLOSE_TRAY))
                 loej = 0;
 
-        req.sense = sense;
-        req.cmd[0] = GPCMD_START_STOP_UNIT;
-        req.cmd[4] = loej | (ejectflag != 0);
+        memset(cmd, 0, BLK_MAX_CDB);
+
+        cmd[0] = GPCMD_START_STOP_UNIT;
+        cmd[4] = loej | (ejectflag != 0);
 
-        return ide_cd_queue_pc(drive, &req);
+        return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, 0);
 }
 
 /* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */
@@ -134,7 +133,6 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag,
 {
         struct cdrom_info *cd = drive->driver_data;
         struct request_sense my_sense;
-        struct request req;
         int stat;
 
         if (sense == NULL)
@@ -144,11 +142,15 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag,
         if (cd->cd_flags & IDE_CD_FLAG_NO_DOORLOCK) {
                 stat = 0;
         } else {
-                ide_cd_init_rq(drive, &req);
-                req.sense = sense;
-                req.cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL;
-                req.cmd[4] = lockflag ? 1 : 0;
-                stat = ide_cd_queue_pc(drive, &req);
+                unsigned char cmd[BLK_MAX_CDB];
+
+                memset(cmd, 0, BLK_MAX_CDB);
+
+                cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL;
+                cmd[4] = lockflag ? 1 : 0;
+
+                stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0,
+                                       sense, 0, 0);
         }
 
         /* If we got an illegal field error, the drive
@@ -206,32 +208,30 @@ int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed)
 {
         ide_drive_t *drive = cdi->handle;
         struct cdrom_info *cd = drive->driver_data;
-        struct request rq;
         struct request_sense sense;
         u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE];
         int stat;
-
-        ide_cd_init_rq(drive, &rq);
-
-        rq.sense = &sense;
+        unsigned char cmd[BLK_MAX_CDB];
 
         if (speed == 0)
                 speed = 0xffff; /* set to max */
         else
                 speed *= 177;   /* Nx to kbytes/s */
 
-        rq.cmd[0] = GPCMD_SET_SPEED;
+        memset(cmd, 0, BLK_MAX_CDB);
+
+        cmd[0] = GPCMD_SET_SPEED;
         /* Read Drive speed in kbytes/second MSB/LSB */
-        rq.cmd[2] = (speed >> 8) & 0xff;
-        rq.cmd[3] = speed & 0xff;
+        cmd[2] = (speed >> 8) & 0xff;
+        cmd[3] = speed & 0xff;
         if ((cdi->mask & (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) !=
             (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) {
                 /* Write Drive speed in kbytes/second MSB/LSB */
-                rq.cmd[4] = (speed >> 8) & 0xff;
-                rq.cmd[5] = speed & 0xff;
+                cmd[4] = (speed >> 8) & 0xff;
+                cmd[5] = speed & 0xff;
         }
 
-        stat = ide_cd_queue_pc(drive, &rq);
+        stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0);
 
         if (!ide_cdrom_get_capabilities(drive, buf)) {
                 ide_cdrom_update_speed(drive, buf);
@@ -268,21 +268,19 @@ int ide_cdrom_get_mcn(struct cdrom_device_info *cdi,
 {
         ide_drive_t *drive = cdi->handle;
         int stat, mcnlen;
-        struct request rq;
         char buf[24];
+        unsigned char cmd[BLK_MAX_CDB];
+        unsigned len = sizeof(buf);
 
-        ide_cd_init_rq(drive, &rq);
+        memset(cmd, 0, BLK_MAX_CDB);
 
-        rq.data = buf;
-        rq.data_len = sizeof(buf);
+        cmd[0] = GPCMD_READ_SUBCHANNEL;
+        cmd[1] = 2;             /* MSF addressing */
+        cmd[2] = 0x40;  /* request subQ data */
+        cmd[3] = 2;             /* format */
+        cmd[8] = len;
 
-        rq.cmd[0] = GPCMD_READ_SUBCHANNEL;
-        rq.cmd[1] = 2;          /* MSF addressing */
-        rq.cmd[2] = 0x40;       /* request subQ data */
-        rq.cmd[3] = 2;          /* format */
-        rq.cmd[8] = sizeof(buf);
-
-        stat = ide_cd_queue_pc(drive, &rq);
+        stat = ide_cd_queue_pc(drive, cmd, 0, buf, &len, NULL, 0, 0);
         if (stat)
                 return stat;
 
@@ -298,14 +296,14 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi)
         ide_drive_t *drive = cdi->handle;
         struct cdrom_info *cd = drive->driver_data;
         struct request_sense sense;
-        struct request req;
+        struct request *rq;
         int ret;
 
-        ide_cd_init_rq(drive, &req);
-        req.cmd_type = REQ_TYPE_SPECIAL;
-        req.cmd_flags = REQ_QUIET;
-        ret = ide_do_drive_cmd(drive, &req, ide_wait);
-
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->cmd_type = REQ_TYPE_SPECIAL;
+        rq->cmd_flags = REQ_QUIET;
+        ret = blk_execute_rq(drive->queue, cd->disk, rq, 0);
+        blk_put_request(rq);
         /*
          * A reset will unlock the door. If it was previously locked,
          * lock it again.
@@ -351,8 +349,8 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg)
         struct atapi_toc_entry *first_toc, *last_toc;
         unsigned long lba_start, lba_end;
         int stat;
-        struct request rq;
         struct request_sense sense;
+        unsigned char cmd[BLK_MAX_CDB];
 
         stat = ide_cd_get_toc_entry(drive, ti->cdti_trk0, &first_toc);
         if (stat)
@@ -370,14 +368,13 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg)
         if (lba_end <= lba_start)
                 return -EINVAL;
 
-        ide_cd_init_rq(drive, &rq);
+        memset(cmd, 0, BLK_MAX_CDB);
 
-        rq.sense = &sense;
-        rq.cmd[0] = GPCMD_PLAY_AUDIO_MSF;
-        lba_to_msf(lba_start,   &rq.cmd[3], &rq.cmd[4], &rq.cmd[5]);
-        lba_to_msf(lba_end - 1, &rq.cmd[6], &rq.cmd[7], &rq.cmd[8]);
+        cmd[0] = GPCMD_PLAY_AUDIO_MSF;
+        lba_to_msf(lba_start,   &cmd[3], &cmd[4], &cmd[5]);
+        lba_to_msf(lba_end - 1, &cmd[6], &cmd[7], &cmd[8]);
 
-        return ide_cd_queue_pc(drive, &rq);
+        return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0);
 }
 
 static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg)
@@ -447,8 +444,9 @@ int ide_cdrom_audio_ioctl(struct cdrom_device_info *cdi,
 int ide_cdrom_packet(struct cdrom_device_info *cdi,
                             struct packet_command *cgc)
 {
-        struct request req;
         ide_drive_t *drive = cdi->handle;
+        unsigned int flags = 0;
+        unsigned len = cgc->buflen;
 
         if (cgc->timeout <= 0)
                 cgc->timeout = ATAPI_WAIT_PC;
@@ -456,24 +454,21 @@ int ide_cdrom_packet(struct cdrom_device_info *cdi,
         /* here we queue the commands from the uniform CD-ROM
            layer. the packet must be complete, as we do not
            touch it at all. */
-        ide_cd_init_rq(drive, &req);
 
         if (cgc->data_direction == CGC_DATA_WRITE)
-                req.cmd_flags |= REQ_RW;
+                flags |= REQ_RW;
 
-        memcpy(req.cmd, cgc->cmd, CDROM_PACKET_SIZE);
         if (cgc->sense)
                 memset(cgc->sense, 0, sizeof(struct request_sense));
-        req.data = cgc->buffer;
-        req.data_len = cgc->buflen;
-        req.timeout = cgc->timeout;
 
         if (cgc->quiet)
-                req.cmd_flags |= REQ_QUIET;
+                flags |= REQ_QUIET;
 
-        req.sense = cgc->sense;
-        cgc->stat = ide_cd_queue_pc(drive, &req);
+        cgc->stat = ide_cd_queue_pc(drive, cgc->cmd,
+                                    cgc->data_direction == CGC_DATA_WRITE,
+                                    cgc->buffer, &len,
+                                    cgc->sense, cgc->timeout, flags);
         if (!cgc->stat)
-                cgc->buflen -= req.data_len;
+                cgc->buflen -= len;
         return cgc->stat;
 }
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 8e08d083fce..5f49a4ae9dd 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -198,8 +198,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
         }
 
         memset(&task, 0, sizeof(task));
-        task.tf_flags = IDE_TFLAG_NO_SELECT_MASK;  /* FIXME? */
-        task.tf_flags |= (IDE_TFLAG_TF | IDE_TFLAG_DEVICE);
+        task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
 
         if (drive->select.b.lba) {
                 if (lba48) {
@@ -617,7 +616,8 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq)
  */
 static int set_multcount(ide_drive_t *drive, int arg)
 {
-        struct request rq;
+        struct request *rq;
+        int error;
 
         if (arg < 0 || arg > drive->id->max_multsect)
                 return -EINVAL;
@@ -625,12 +625,13 @@ static int set_multcount(ide_drive_t *drive, int arg)
         if (drive->special.b.set_multmode)
                 return -EBUSY;
 
-        ide_init_drive_cmd(&rq);
-        rq.cmd_type = REQ_TYPE_ATA_TASKFILE;
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
 
         drive->mult_req = arg;
         drive->special.b.set_multmode = 1;
-        (void)ide_do_drive_cmd(drive, &rq, ide_wait);
+        error = blk_execute_rq(drive->queue, NULL, rq, 0);
+        blk_put_request(rq);
 
         return (drive->mult_count == arg) ? 0 : -EIO;
 }
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 653b1ade13d..7ee44f86bc5 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -463,7 +463,7 @@ int ide_dma_setup(ide_drive_t *drive)
         }
 
         /* PRD table */
-        if (hwif->mmio)
+        if (hwif->host_flags & IDE_HFLAG_MMIO)
                 writel(hwif->dmatable_dma,
                        (void __iomem *)(hwif->dma_base + ATA_DMA_TABLE_OFS));
         else
@@ -692,7 +692,7 @@ static int ide_tune_dma(ide_drive_t *drive)
         ide_hwif_t *hwif = drive->hwif;
         u8 speed;
 
-        if (noautodma || drive->nodma || (drive->id->capability & 1) == 0)
+        if (drive->nodma || (drive->id->capability & 1) == 0)
                 return 0;
 
         /* consult the list of known "bad" drives */
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index f05fbc2bd7a..b3689437269 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -286,11 +286,12 @@ static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc,
 {
         struct ide_floppy_obj *floppy = drive->driver_data;
 
-        ide_init_drive_cmd(rq);
+        blk_rq_init(NULL, rq);
         rq->buffer = (char *) pc;
         rq->cmd_type = REQ_TYPE_SPECIAL;
+        rq->cmd_flags |= REQ_PREEMPT;
         rq->rq_disk = floppy->disk;
-        (void) ide_do_drive_cmd(drive, rq, ide_preempt);
+        ide_do_drive_cmd(drive, rq);
 }
 
 static struct ide_atapi_pc *idefloppy_next_pc_storage(ide_drive_t *drive)
@@ -311,50 +312,41 @@ static struct request *idefloppy_next_rq_storage(ide_drive_t *drive)
         return (&floppy->rq_stack[floppy->rq_stack_index++]);
 }
 
-static void idefloppy_request_sense_callback(ide_drive_t *drive)
+static void ide_floppy_callback(ide_drive_t *drive)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
-        u8 *buf = floppy->pc->buf;
+        struct ide_atapi_pc *pc = floppy->pc;
+        int uptodate = pc->error ? 0 : 1;
 
         debug_log("Reached %s\n", __func__);
 
-        if (!floppy->pc->error) {
-                floppy->sense_key = buf[2] & 0x0F;
-                floppy->asc = buf[12];
-                floppy->ascq = buf[13];
-                floppy->progress_indication = buf[15] & 0x80 ?
-                        (u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
+        if (floppy->failed_pc == pc)
+                floppy->failed_pc = NULL;
 
-                if (floppy->failed_pc)
-                        debug_log("pc = %x, sense key = %x, asc = %x,"
-                                        " ascq = %x\n",
-                                        floppy->failed_pc->c[0],
-                                        floppy->sense_key,
-                                        floppy->asc,
-                                        floppy->ascq);
-                else
-                        debug_log("sense key = %x, asc = %x, ascq = %x\n",
-                                        floppy->sense_key,
-                                        floppy->asc,
-                                        floppy->ascq);
+        if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 ||
+            (pc->rq && blk_pc_request(pc->rq)))
+                uptodate = 1; /* FIXME */
+        else if (pc->c[0] == GPCMD_REQUEST_SENSE) {
+                u8 *buf = floppy->pc->buf;
 
+                if (!pc->error) {
+                        floppy->sense_key = buf[2] & 0x0F;
+                        floppy->asc = buf[12];
+                        floppy->ascq = buf[13];
+                        floppy->progress_indication = buf[15] & 0x80 ?
+                                (u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
 
-                idefloppy_end_request(drive, 1, 0);
-        } else {
-                printk(KERN_ERR "Error in REQUEST SENSE itself - Aborting"
-                                " request!\n");
-                idefloppy_end_request(drive, 0, 0);
-        }
-}
+                        if (floppy->failed_pc)
+                                debug_log("pc = %x, ", floppy->failed_pc->c[0]);
 
-/* General packet command callback function. */
-static void idefloppy_pc_callback(ide_drive_t *drive)
-{
-        idefloppy_floppy_t *floppy = drive->driver_data;
-
-        debug_log("Reached %s\n", __func__);
+                        debug_log("sense key = %x, asc = %x, ascq = %x\n",
+                                  floppy->sense_key, floppy->asc, floppy->ascq);
+                } else
+                        printk(KERN_ERR "Error in REQUEST SENSE itself - "
+                                        "Aborting request!\n");
+        }
 
-        idefloppy_end_request(drive, floppy->pc->error ? 0 : 1, 0);
+        idefloppy_end_request(drive, uptodate, 0);
 }
 
 static void idefloppy_init_pc(struct ide_atapi_pc *pc)
@@ -365,7 +357,7 @@ static void idefloppy_init_pc(struct ide_atapi_pc *pc)
         pc->req_xfer = 0;
         pc->buf = pc->pc_buf;
         pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE;
-        pc->idefloppy_callback = &idefloppy_pc_callback;
+        pc->callback = ide_floppy_callback;
 }
 
 static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
@@ -374,7 +366,6 @@ static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
         pc->c[0] = GPCMD_REQUEST_SENSE;
         pc->c[4] = 255;
         pc->req_xfer = 18;
-        pc->idefloppy_callback = &idefloppy_request_sense_callback;
 }
 
 /*
@@ -397,174 +388,19 @@ static void idefloppy_retry_pc(ide_drive_t *drive)
 static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
-        ide_hwif_t *hwif = drive->hwif;
-        struct ide_atapi_pc *pc = floppy->pc;
-        struct request *rq = pc->rq;
-        xfer_func_t *xferfunc;
-        unsigned int temp;
-        int dma_error = 0;
-        u16 bcount;
-        u8 stat, ireason;
-
-        debug_log("Reached %s interrupt handler\n", __func__);
-
-        if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
-                dma_error = hwif->dma_ops->dma_end(drive);
-                if (dma_error) {
-                        printk(KERN_ERR "%s: DMA %s error\n", drive->name,
-                                        rq_data_dir(rq) ? "write" : "read");
-                        pc->flags |= PC_FLAG_DMA_ERROR;
-                } else {
-                        pc->xferred = pc->req_xfer;
-                        idefloppy_update_buffers(drive, pc);
-                }
-                debug_log("DMA finished\n");
-        }
-
-        /* Clear the interrupt */
-        stat = ide_read_status(drive);
-
-        /* No more interrupts */
-        if ((stat & DRQ_STAT) == 0) {
-                debug_log("Packet command completed, %d bytes transferred\n",
-                                pc->xferred);
-                pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
-
-                local_irq_enable_in_hardirq();
-
-                if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) {
-                        /* Error detected */
-                        debug_log("%s: I/O error\n", drive->name);
-                        rq->errors++;
-                        if (pc->c[0] == GPCMD_REQUEST_SENSE) {
-                                printk(KERN_ERR "ide-floppy: I/O error in "
-                                        "request sense command\n");
-                                return ide_do_reset(drive);
-                        }
-                        /* Retry operation */
-                        idefloppy_retry_pc(drive);
-                        /* queued, but not started */
-                        return ide_stopped;
-                }
-                pc->error = 0;
-                if (floppy->failed_pc == pc)
-                        floppy->failed_pc = NULL;
-                /* Command finished - Call the callback function */
-                pc->idefloppy_callback(drive);
-                return ide_stopped;
-        }
-
-        if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
-                pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
-                printk(KERN_ERR "ide-floppy: The floppy wants to issue "
-                        "more interrupts in DMA mode\n");
-                ide_dma_off(drive);
-                return ide_do_reset(drive);
-        }
-
-        /* Get the number of bytes to transfer */
-        bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) |
-                  hwif->INB(hwif->io_ports.lbam_addr);
-        /* on this interrupt */
-        ireason = hwif->INB(hwif->io_ports.nsect_addr);
-
-        if (ireason & CD) {
-                printk(KERN_ERR "ide-floppy: CoD != 0 in %s\n", __func__);
-                return ide_do_reset(drive);
-        }
-        if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) {
-                /* Hopefully, we will never get here */
-                printk(KERN_ERR "ide-floppy: We wanted to %s, ",
-                                (ireason & IO) ? "Write" : "Read");
-                printk(KERN_ERR "but the floppy wants us to %s !\n",
-                                (ireason & IO) ? "Read" : "Write");
-                return ide_do_reset(drive);
-        }
-        if (!(pc->flags & PC_FLAG_WRITING)) {
-                /* Reading - Check that we have enough space */
-                temp = pc->xferred + bcount;
-                if (temp > pc->req_xfer) {
-                        if (temp > pc->buf_size) {
-                                printk(KERN_ERR "ide-floppy: The floppy wants "
-                                        "to send us more data than expected "
-                                        "- discarding data\n");
-                                ide_pad_transfer(drive, 0, bcount);
-
-                                ide_set_handler(drive,
-                                                &idefloppy_pc_intr,
-                                                IDEFLOPPY_WAIT_CMD,
-                                                NULL);
-                                return ide_started;
-                        }
-                        debug_log("The floppy wants to send us more data than"
-                                        " expected - allowing transfer\n");
-                }
-        }
-        if (pc->flags & PC_FLAG_WRITING)
-                xferfunc = hwif->output_data;
-        else
-                xferfunc = hwif->input_data;
-
-        if (pc->buf)
-                xferfunc(drive, NULL, pc->cur_pos, bcount);
-        else
-                ide_floppy_io_buffers(drive, pc, bcount,
-                                      !!(pc->flags & PC_FLAG_WRITING));
-
-        /* Update the current position */
-        pc->xferred += bcount;
-        pc->cur_pos += bcount;
-
-        /* And set the interrupt handler again */
-        ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL);
-        return ide_started;
-}
-
-/*
- * This is the original routine that did the packet transfer.
- * It fails at high speeds on the Iomega ZIP drive, so there's a slower version
- * for that drive below. The algorithm is chosen based on drive type
- */
-static ide_startstop_t idefloppy_transfer_pc(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        ide_startstop_t startstop;
-        idefloppy_floppy_t *floppy = drive->driver_data;
-        u8 ireason;
-
-        if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) {
-                printk(KERN_ERR "ide-floppy: Strange, packet command "
-                                "initiated yet DRQ isn't asserted\n");
-                return startstop;
-        }
-        ireason = hwif->INB(hwif->io_ports.nsect_addr);
-        if ((ireason & CD) == 0 || (ireason & IO)) {
-                printk(KERN_ERR "ide-floppy: (IO,CoD) != (0,1) while "
-                                "issuing a packet command\n");
-                return ide_do_reset(drive);
-        }
 
-        /* Set the interrupt routine */
-        ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL);
-
-        /* Send the actual packet */
-        hwif->output_data(drive, NULL, floppy->pc->c, 12);
-
-        return ide_started;
+        return ide_pc_intr(drive, floppy->pc, idefloppy_pc_intr,
+                           IDEFLOPPY_WAIT_CMD, NULL, idefloppy_update_buffers,
+                           idefloppy_retry_pc, NULL, ide_floppy_io_buffers);
 }
 
-
 /*
  * What we have here is a classic case of a top half / bottom half interrupt
  * service routine. In interrupt mode, the device sends an interrupt to signal
  * that it is ready to receive a packet. However, we need to delay about 2-3
  * ticks before issuing the packet or we gets in trouble.
- *
- * So, follow carefully. transfer_pc1 is called as an interrupt (or directly).
- * In either case, when the device says it's ready for a packet, we schedule
- * the packet transfer to occur about 2-3 ticks later in transfer_pc2.
  */
-static int idefloppy_transfer_pc2(ide_drive_t *drive)
+static int idefloppy_transfer_pc(ide_drive_t *drive)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
 
@@ -575,24 +411,19 @@ static int idefloppy_transfer_pc2(ide_drive_t *drive)
         return IDEFLOPPY_WAIT_CMD;
 }
 
-static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive)
+
+/*
+ * Called as an interrupt (or directly). When the device says it's ready for a
+ * packet, we schedule the packet transfer to occur about 2-3 ticks later in
+ * transfer_pc.
+ */
+static ide_startstop_t idefloppy_start_pc_transfer(ide_drive_t *drive)
 {
-        ide_hwif_t *hwif = drive->hwif;
         idefloppy_floppy_t *floppy = drive->driver_data;
-        ide_startstop_t startstop;
-        u8 ireason;
+        struct ide_atapi_pc *pc = floppy->pc;
+        ide_expiry_t *expiry;
+        unsigned int timeout;
 
-        if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) {
-                printk(KERN_ERR "ide-floppy: Strange, packet command "
-                                "initiated yet DRQ isn't asserted\n");
-                return startstop;
-        }
-        ireason = hwif->INB(hwif->io_ports.nsect_addr);
-        if ((ireason & CD) == 0 || (ireason & IO)) {
-                printk(KERN_ERR "ide-floppy: (IO,CoD) != (0,1) "
-                                "while issuing a packet command\n");
-                return ide_do_reset(drive);
-        }
         /*
          * The following delay solves a problem with ATAPI Zip 100 drives
          * where the Busy flag was apparently being deasserted before the
@@ -601,10 +432,15 @@ static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive)
          * 40 and 50msec work well. idefloppy_pc_intr will not be actually
          * used until after the packet is moved in about 50 msec.
          */
+        if (pc->flags & PC_FLAG_ZIP_DRIVE) {
+                timeout = floppy->ticks;
+                expiry = &idefloppy_transfer_pc;
+        } else {
+                timeout = IDEFLOPPY_WAIT_CMD;
+                expiry = NULL;
+        }
 
-        ide_set_handler(drive, &idefloppy_pc_intr, floppy->ticks,
-                        &idefloppy_transfer_pc2);
-        return ide_started;
+        return ide_transfer_pc(drive, pc, idefloppy_pc_intr, timeout, expiry);
 }
 
 static void ide_floppy_report_error(idefloppy_floppy_t *floppy,
@@ -627,10 +463,6 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
                 struct ide_atapi_pc *pc)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
-        ide_hwif_t *hwif = drive->hwif;
-        ide_handler_t *pkt_xfer_routine;
-        u16 bcount;
-        u8 dma;
 
         if (floppy->failed_pc == NULL &&
             pc->c[0] != GPCMD_REQUEST_SENSE)
@@ -645,65 +477,16 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
                 pc->error = IDEFLOPPY_ERROR_GENERAL;
 
                 floppy->failed_pc = NULL;
-                pc->idefloppy_callback(drive);
+                pc->callback(drive);
                 return ide_stopped;
         }
 
         debug_log("Retry number - %d\n", pc->retries);
 
         pc->retries++;
-        /* We haven't transferred any data yet */
-        pc->xferred = 0;
-        pc->cur_pos = pc->buf;
-        bcount = min(pc->req_xfer, 63 * 1024);
-
-        if (pc->flags & PC_FLAG_DMA_ERROR) {
-                pc->flags &= ~PC_FLAG_DMA_ERROR;
-                ide_dma_off(drive);
-        }
-        dma = 0;
-
-        if ((pc->flags & PC_FLAG_DMA_RECOMMENDED) && drive->using_dma)
-                dma = !hwif->dma_ops->dma_setup(drive);
 
-        ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK |
-                           IDE_TFLAG_OUT_DEVICE, bcount, dma);
-
-        if (dma) {
-                /* Begin DMA, if necessary */
-                pc->flags |= PC_FLAG_DMA_IN_PROGRESS;
-                hwif->dma_ops->dma_start(drive);
-        }
-
-        /* Can we transfer the packet when we get the interrupt or wait? */
-        if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) {
-                /* wait */
-                pkt_xfer_routine = &idefloppy_transfer_pc1;
-        } else {
-                /* immediate */
-                pkt_xfer_routine = &idefloppy_transfer_pc;
-        }
-
-        if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) {
-                /* Issue the packet command */
-                ide_execute_command(drive, WIN_PACKETCMD,
-                                pkt_xfer_routine,
-                                IDEFLOPPY_WAIT_CMD,
-                                NULL);
-                return ide_started;
-        } else {
-                /* Issue the packet command */
-                ide_execute_pkt_cmd(drive);
-                return (*pkt_xfer_routine) (drive);
-        }
-}
-
-static void idefloppy_rw_callback(ide_drive_t *drive)
-{
-        debug_log("Reached %s\n", __func__);
-
-        idefloppy_end_request(drive, 1, 0);
-        return;
+        return ide_issue_pc(drive, pc, idefloppy_start_pc_transfer,
+                            IDEFLOPPY_WAIT_CMD, NULL);
 }
 
 static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent)
@@ -800,21 +583,19 @@ static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy,
         put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]);
         put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]);
 
-        pc->idefloppy_callback = &idefloppy_rw_callback;
         pc->rq = rq;
         pc->b_count = cmd == READ ? 0 : rq->bio->bi_size;
         if (rq->cmd_flags & REQ_RW)
                 pc->flags |= PC_FLAG_WRITING;
         pc->buf = NULL;
         pc->req_xfer = pc->buf_size = blocks * floppy->block_size;
-        pc->flags |= PC_FLAG_DMA_RECOMMENDED;
+        pc->flags |= PC_FLAG_DMA_OK;
 }
 
 static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy,
                 struct ide_atapi_pc *pc, struct request *rq)
 {
         idefloppy_init_pc(pc);
-        pc->idefloppy_callback = &idefloppy_rw_callback;
         memcpy(pc->c, rq->cmd, sizeof(pc->c));
         pc->rq = rq;
         pc->b_count = rq->data_len;
@@ -822,7 +603,7 @@ static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy,
                 pc->flags |= PC_FLAG_WRITING;
         pc->buf = rq->data;
         if (rq->bio)
-                pc->flags |= PC_FLAG_DMA_RECOMMENDED;
+                pc->flags |= PC_FLAG_DMA_OK;
         /*
          * possibly problematic, doesn't look like ide-floppy correctly
          * handled scattered requests if dma fails...
@@ -875,7 +656,14 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
                 return ide_stopped;
         }
 
+        if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT)
+                pc->flags |= PC_FLAG_DRQ_INTERRUPT;
+
+        if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE)
+                pc->flags |= PC_FLAG_ZIP_DRIVE;
+
         pc->rq = rq;
+
         return idefloppy_issue_pc(drive, pc);
 }
 
@@ -886,14 +674,16 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
 static int idefloppy_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc)
 {
         struct ide_floppy_obj *floppy = drive->driver_data;
-        struct request rq;
+        struct request *rq;
+        int error;
 
-        ide_init_drive_cmd(&rq);
-        rq.buffer = (char *) pc;
-        rq.cmd_type = REQ_TYPE_SPECIAL;
-        rq.rq_disk = floppy->disk;
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->buffer = (char *) pc;
+        rq->cmd_type = REQ_TYPE_SPECIAL;
+        error = blk_execute_rq(drive->queue, floppy->disk, rq, 0);
+        blk_put_request(rq);
 
-        return ide_do_drive_cmd(drive, &rq, ide_wait);
+        return error;
 }
 
 /*
@@ -1622,11 +1412,6 @@ static int ide_floppy_probe(ide_drive_t *drive)
                                 " of ide-floppy\n", drive->name);
                 goto failed;
         }
-        if (drive->scsi) {
-                printk(KERN_INFO "ide-floppy: passing drive %s to ide-scsi"
-                                " emulation.\n", drive->name);
-                goto failed;
-        }
         floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL);
         if (!floppy) {
                 printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy"
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 696525342e9..28057747c1f 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -358,31 +358,6 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
 
 EXPORT_SYMBOL(ide_end_drive_cmd);
 
-/**
- *      try_to_flush_leftover_data      -       flush junk
- *      @drive: drive to flush
- *
- *      try_to_flush_leftover_data() is invoked in response to a drive
- *      unexpectedly having its DRQ_STAT bit set.  As an alternative to
- *      resetting the drive, this routine tries to clear the condition
- *      by read a sector's worth of data from the drive.  Of course,
- *      this may not help if the drive is *waiting* for data from *us*.
- */
-static void try_to_flush_leftover_data (ide_drive_t *drive)
-{
-        int i = (drive->mult_count ? drive->mult_count : 1) * SECTOR_WORDS;
-
-        if (drive->media != ide_disk)
-                return;
-        while (i > 0) {
-                u32 buffer[16];
-                u32 wcount = (i > 16) ? 16 : i;
-
-                i -= wcount;
-                drive->hwif->input_data(drive, NULL, buffer, wcount * 4);
-        }
-}
-
 static void ide_kill_rq(ide_drive_t *drive, struct request *rq)
 {
         if (rq->rq_disk) {
@@ -422,8 +397,11 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8
         }
 
         if ((stat & DRQ_STAT) && rq_data_dir(rq) == READ &&
-            (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0)
-                try_to_flush_leftover_data(drive);
+            (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) {
+                int nsect = drive->mult_count ? drive->mult_count : 1;
+
+                ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE);
+        }
 
         if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) {
                 ide_kill_rq(drive, rq);
@@ -459,7 +437,7 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u
 
         if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT))
                 /* force an abort */
-                hwif->OUTBSYNC(drive, WIN_IDLEIMMEDIATE,
+                hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE,
                                hwif->io_ports.command_addr);
 
         if (rq->errors >= ERROR_MAX) {
@@ -1539,88 +1517,30 @@ irqreturn_t ide_intr (int irq, void *dev_id)
 }
 
 /**
- *      ide_init_drive_cmd      -       initialize a drive command request
- *      @rq: request object
- *
- *      Initialize a request before we fill it in and send it down to
- *      ide_do_drive_cmd. Commands must be set up by this function. Right
- *      now it doesn't do a lot, but if that changes abusers will have a
- *      nasty surprise.
- */
-
-void ide_init_drive_cmd (struct request *rq)
-{
-        blk_rq_init(NULL, rq);
-}
-
-EXPORT_SYMBOL(ide_init_drive_cmd);
-
-/**
  *      ide_do_drive_cmd        -       issue IDE special command
  *      @drive: device to issue command
  *      @rq: request to issue
- *      @action: action for processing
  *
  *      This function issues a special IDE device request
  *      onto the request queue.
  *
- *      If action is ide_wait, then the rq is queued at the end of the
- *      request queue, and the function sleeps until it has been processed.
- *      This is for use when invoked from an ioctl handler.
- *
- *      If action is ide_preempt, then the rq is queued at the head of
- *      the request queue, displacing the currently-being-processed
- *      request and this function returns immediately without waiting
- *      for the new rq to be completed.  This is VERY DANGEROUS, and is
- *      intended for careful use by the ATAPI tape/cdrom driver code.
- *
- *      If action is ide_end, then the rq is queued at the end of the
- *      request queue, and the function returns immediately without waiting
- *      for the new rq to be completed. This is again intended for careful
- *      use by the ATAPI tape/cdrom driver code.
+ *      the rq is queued at the head of the request queue, displacing
+ *      the currently-being-processed request and this function
+ *      returns immediately without waiting for the new rq to be
+ *      completed.  This is VERY DANGEROUS, and is intended for
+ *      careful use by the ATAPI tape/cdrom driver code.
  */
- 
-int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t action)
+
+void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq)
 {
         unsigned long flags;
         ide_hwgroup_t *hwgroup = HWGROUP(drive);
-        DECLARE_COMPLETION_ONSTACK(wait);
-        int where = ELEVATOR_INSERT_BACK, err;
-        int must_wait = (action == ide_wait || action == ide_head_wait);
-
-        rq->errors = 0;
-
-        /*
-         * we need to hold an extra reference to request for safe inspection
-         * after completion
-         */
-        if (must_wait) {
-                rq->ref_count++;
-                rq->end_io_data = &wait;
-                rq->end_io = blk_end_sync_rq;
-        }
 
         spin_lock_irqsave(&ide_lock, flags);
-        if (action == ide_preempt)
-                hwgroup->rq = NULL;
-        if (action == ide_preempt || action == ide_head_wait) {
-                where = ELEVATOR_INSERT_FRONT;
-                rq->cmd_flags |= REQ_PREEMPT;
-        }
-        __elv_add_request(drive->queue, rq, where, 0);
-        ide_do_request(hwgroup, IDE_NO_IRQ);
+        hwgroup->rq = NULL;
+        __elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 1);
+        __generic_unplug_device(drive->queue);
         spin_unlock_irqrestore(&ide_lock, flags);
-
-        err = 0;
-        if (must_wait) {
-                wait_for_completion(&wait);
-                if (rq->errors)
-                        err = -EIO;
-
-                blk_put_request(rq);
-        }
-
-        return err;
 }
 
 EXPORT_SYMBOL(ide_do_drive_cmd);
@@ -1637,6 +1557,8 @@ void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma)
         task.tf.lbah    = (bcount >> 8) & 0xff;
 
         ide_tf_dump(drive->name, &task.tf);
+        ide_set_irq(drive, 1);
+        SELECT_MASK(drive, 0);
         drive->hwif->tf_load(drive, &task);
 }
 
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 0daf923541f..80ad4f234f3 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -42,7 +42,7 @@ static void ide_outb (u8 val, unsigned long port)
         outb(val, port);
 }
 
-static void ide_outbsync (ide_drive_t *drive, u8 addr, unsigned long port)
+static void ide_outbsync(ide_hwif_t *hwif, u8 addr, unsigned long port)
 {
         outb(addr, port);
 }
@@ -68,7 +68,7 @@ static void ide_mm_outb (u8 value, unsigned long port)
         writeb(value, (void __iomem *) port);
 }
 
-static void ide_mm_outbsync (ide_drive_t *drive, u8 value, unsigned long port)
+static void ide_mm_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port)
 {
         writeb(value, (void __iomem *) port);
 }
@@ -95,7 +95,7 @@ void SELECT_DRIVE (ide_drive_t *drive)
         hwif->OUTB(drive->select.all, hwif->io_ports.device_addr);
 }
 
-static void SELECT_MASK(ide_drive_t *drive, int mask)
+void SELECT_MASK(ide_drive_t *drive, int mask)
 {
         const struct ide_port_ops *port_ops = drive->hwif->port_ops;
 
@@ -120,11 +120,6 @@ static void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
         if (task->tf_flags & IDE_TFLAG_FLAGGED)
                 HIHI = 0xFF;
 
-        ide_set_irq(drive, 1);
-
-        if ((task->tf_flags & IDE_TFLAG_NO_SELECT_MASK) == 0)
-                SELECT_MASK(drive, 0);
-
         if (task->tf_flags & IDE_TFLAG_OUT_DATA) {
                 u16 data = (tf->hob_data << 8) | tf->data;
 
@@ -191,7 +186,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
         }
 
         /* be sure we're looking at the low order bits */
-        tf_outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+        tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
         if (task->tf_flags & IDE_TFLAG_IN_NSECT)
                 tf->nsect  = tf_inb(io_ports->nsect_addr);
@@ -205,7 +200,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
                 tf->device = tf_inb(io_ports->device_addr);
 
         if (task->tf_flags & IDE_TFLAG_LBA48) {
-                tf_outb(drive->ctl | 0x80, io_ports->ctl_addr);
+                tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
                 if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
                         tf->hob_feature = tf_inb(io_ports->feature_addr);
@@ -689,9 +684,9 @@ int ide_driveid_update(ide_drive_t *drive)
          */
 
         SELECT_MASK(drive, 1);
-        ide_set_irq(drive, 1);
+        ide_set_irq(drive, 0);
         msleep(50);
-        hwif->OUTBSYNC(drive, WIN_IDENTIFY, hwif->io_ports.command_addr);
+        hwif->OUTBSYNC(hwif, WIN_IDENTIFY, hwif->io_ports.command_addr);
         timeout = jiffies + WAIT_WORSTCASE;
         do {
                 if (time_after(jiffies, timeout)) {
@@ -744,9 +739,6 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
         int error = 0;
         u8 stat;
 
-//      while (HWGROUP(drive)->busy)
-//              msleep(50);
-
 #ifdef CONFIG_BLK_DEV_IDEDMA
         if (hwif->dma_ops)      /* check if host supports DMA */
                 hwif->dma_ops->dma_host_set(drive, 0);
@@ -781,7 +773,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
         ide_set_irq(drive, 0);
         hwif->OUTB(speed, io_ports->nsect_addr);
         hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr);
-        hwif->OUTBSYNC(drive, WIN_SETFEATURES, io_ports->command_addr);
+        hwif->OUTBSYNC(hwif, WIN_SETFEATURES, io_ports->command_addr);
         if (drive->quirk_list == 2)
                 ide_set_irq(drive, 1);
 
@@ -889,7 +881,7 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
 
         spin_lock_irqsave(&ide_lock, flags);
         __ide_set_handler(drive, handler, timeout, expiry);
-        hwif->OUTBSYNC(drive, cmd, hwif->io_ports.command_addr);
+        hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr);
         /*
          * Drive takes 400nS to respond, we must avoid the IRQ being
          * serviced before that.
@@ -907,7 +899,7 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
         unsigned long flags;
 
         spin_lock_irqsave(&ide_lock, flags);
-        hwif->OUTBSYNC(drive, WIN_PACKETCMD, hwif->io_ports.command_addr);
+        hwif->OUTBSYNC(hwif, WIN_PACKETCMD, hwif->io_ports.command_addr);
         ndelay(400);
         spin_unlock_irqrestore(&ide_lock, flags);
 }
@@ -1102,7 +1094,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
                 pre_reset(drive);
                 SELECT_DRIVE(drive);
                 udelay (20);
-                hwif->OUTBSYNC(drive, WIN_SRST, io_ports->command_addr);
+                hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr);
                 ndelay(400);
                 hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
                 hwgroup->polling = 1;
@@ -1133,14 +1125,14 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
          * recover from reset very quickly, saving us the first 50ms wait time.
          */
         /* set SRST and nIEN */
-        hwif->OUTBSYNC(drive, drive->ctl|6, io_ports->ctl_addr);
+        hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | 6, io_ports->ctl_addr);
         /* more than enough time */
         udelay(10);
         if (drive->quirk_list == 2)
-                ctl = drive->ctl;       /* clear SRST and nIEN */
+                ctl = ATA_DEVCTL_OBS;           /* clear SRST and nIEN */
         else
-                ctl = drive->ctl | 2;   /* clear SRST, leave nIEN */
-        hwif->OUTBSYNC(drive, ctl, io_ports->ctl_addr);
+                ctl = ATA_DEVCTL_OBS | 2;       /* clear SRST, leave nIEN */
+        hwif->OUTBSYNC(hwif, ctl, io_ports->ctl_addr);
         /* more than enough time */
         udelay(10);
         hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 26e68b65b7c..d21e51a02c3 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -293,7 +293,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
                 hwif->OUTB(0, io_ports->feature_addr);
 
         /* ask drive for ID */
-        hwif->OUTBSYNC(drive, cmd, io_ports->command_addr);
+        hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr);
 
         timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2;
         timeout += jiffies;
@@ -478,9 +478,9 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
                         printk(KERN_ERR "%s: no response (status = 0x%02x), "
                                         "resetting drive\n", drive->name, stat);
                         msleep(50);
-                        hwif->OUTB(drive->select.all, io_ports->device_addr);
+                        SELECT_DRIVE(drive);
                         msleep(50);
-                        hwif->OUTBSYNC(drive, WIN_SRST, io_ports->command_addr);
+                        hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr);
                         (void)ide_busy_sleep(hwif);
                         rc = try_to_identify(drive, cmd);
                 }
@@ -516,7 +516,7 @@ static void enable_nest (ide_drive_t *drive)
         printk("%s: enabling %s -- ", hwif->name, drive->id->model);
         SELECT_DRIVE(drive);
         msleep(50);
-        hwif->OUTBSYNC(drive, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr);
+        hwif->OUTBSYNC(hwif, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr);
 
         if (ide_busy_sleep(hwif)) {
                 printk(KERN_CONT "failed (timeout)\n");
@@ -1065,7 +1065,7 @@ static int init_irq (ide_hwif_t *hwif)
 
                 if (io_ports->ctl_addr)
                         /* clear nIEN */
-                        hwif->OUTB(0x08, io_ports->ctl_addr);
+                        hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS, io_ports->ctl_addr);
 
                 if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup))
                         goto out_unlink;
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index a3d228302d2..f9cf1670e4e 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -144,9 +144,6 @@ enum {
 
 /*************************** End of tunable parameters ***********************/
 
-/* Read/Write error simulation */
-#define SIMULATE_ERRORS                 0
-
 /* tape directions */
 enum {
         IDETAPE_DIR_NONE  = (1 << 0),
@@ -442,7 +439,7 @@ static void idetape_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
         }
 }
 
-static void idetape_update_buffers(struct ide_atapi_pc *pc)
+static void idetape_update_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc)
 {
         struct idetape_bh *bh = pc->bh;
         int count;
@@ -506,18 +503,6 @@ static struct request *idetape_next_rq_storage(ide_drive_t *drive)
         return (&tape->rq_stack[tape->rq_stack_index++]);
 }
 
-static void idetape_init_pc(struct ide_atapi_pc *pc)
-{
-        memset(pc->c, 0, 12);
-        pc->retries = 0;
-        pc->flags = 0;
-        pc->req_xfer = 0;
-        pc->buf = pc->pc_buf;
-        pc->buf_size = IDETAPE_PC_BUFFER_SIZE;
-        pc->bh = NULL;
-        pc->b_data = NULL;
-}
-
 /*
  * called on each failed packet command retry to analyze the request sense. We
  * currently do not utilize this information.
@@ -538,8 +523,8 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
         if (pc->flags & PC_FLAG_DMA_ERROR) {
                 pc->xferred = pc->req_xfer -
                         tape->blk_size *
-                        be32_to_cpu(get_unaligned((u32 *)&sense[3]));
-                idetape_update_buffers(pc);
+                        get_unaligned_be32(&sense[3]);
+                idetape_update_buffers(drive, pc);
         }
 
         /*
@@ -634,21 +619,78 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects)
         return 0;
 }
 
-static ide_startstop_t idetape_request_sense_callback(ide_drive_t *drive)
+static void ide_tape_callback(ide_drive_t *drive)
 {
         idetape_tape_t *tape = drive->driver_data;
+        struct ide_atapi_pc *pc = tape->pc;
+        int uptodate = pc->error ? 0 : 1;
 
         debug_log(DBG_PROCS, "Enter %s\n", __func__);
 
-        if (!tape->pc->error) {
-                idetape_analyze_error(drive, tape->pc->buf);
-                idetape_end_request(drive, 1, 0);
-        } else {
-                printk(KERN_ERR "ide-tape: Error in REQUEST SENSE itself - "
-                                "Aborting request!\n");
-                idetape_end_request(drive, 0, 0);
+        if (tape->failed_pc == pc)
+                tape->failed_pc = NULL;
+
+        if (pc->c[0] == REQUEST_SENSE) {
+                if (uptodate)
+                        idetape_analyze_error(drive, pc->buf);
+                else
+                        printk(KERN_ERR "ide-tape: Error in REQUEST SENSE "
+                                        "itself - Aborting request!\n");
+        } else if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) {
+                struct request *rq = drive->hwif->hwgroup->rq;
+                int blocks = pc->xferred / tape->blk_size;
+
+                tape->avg_size += blocks * tape->blk_size;
+
+                if (time_after_eq(jiffies, tape->avg_time + HZ)) {
+                        tape->avg_speed = tape->avg_size * HZ /
+                                (jiffies - tape->avg_time) / 1024;
+                        tape->avg_size = 0;
+                        tape->avg_time = jiffies;
+                }
+
+                tape->first_frame += blocks;
+                rq->current_nr_sectors -= blocks;
+
+                if (pc->error)
+                        uptodate = pc->error;
+        } else if (pc->c[0] == READ_POSITION && uptodate) {
+                u8 *readpos = tape->pc->buf;
+
+                debug_log(DBG_SENSE, "BOP - %s\n",
+                                (readpos[0] & 0x80) ? "Yes" : "No");
+                debug_log(DBG_SENSE, "EOP - %s\n",
+                                (readpos[0] & 0x40) ? "Yes" : "No");
+
+                if (readpos[0] & 0x4) {
+                        printk(KERN_INFO "ide-tape: Block location is unknown"
+                                         "to the tape\n");
+                        clear_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags);
+                        uptodate = 0;
+                } else {
+                        debug_log(DBG_SENSE, "Block Location - %u\n",
+                                        be32_to_cpu(*(u32 *)&readpos[4]));
+
+                        tape->partition = readpos[1];
+                        tape->first_frame = be32_to_cpu(*(u32 *)&readpos[4]);
+                        set_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags);
+                }
         }
-        return ide_stopped;
+
+        idetape_end_request(drive, uptodate, 0);
+}
+
+static void idetape_init_pc(struct ide_atapi_pc *pc)
+{
+        memset(pc->c, 0, 12);
+        pc->retries = 0;
+        pc->flags = 0;
+        pc->req_xfer = 0;
+        pc->buf = pc->pc_buf;
+        pc->buf_size = IDETAPE_PC_BUFFER_SIZE;
+        pc->bh = NULL;
+        pc->b_data = NULL;
+        pc->callback = ide_tape_callback;
 }
 
 static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc)
@@ -657,7 +699,6 @@ static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc)
         pc->c[0] = REQUEST_SENSE;
         pc->c[4] = 20;
         pc->req_xfer = 20;
-        pc->idetape_callback = &idetape_request_sense_callback;
 }
 
 static void idetape_init_rq(struct request *rq, u8 cmd)
@@ -688,9 +729,10 @@ static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc,
         struct ide_tape_obj *tape = drive->driver_data;
 
         idetape_init_rq(rq, REQ_IDETAPE_PC1);
+        rq->cmd_flags |= REQ_PREEMPT;
         rq->buffer = (char *) pc;
         rq->rq_disk = tape->disk;
-        (void) ide_do_drive_cmd(drive, rq, ide_preempt);
+        ide_do_drive_cmd(drive, rq);
 }
 
 /*
@@ -698,7 +740,7 @@ static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc,
  *      last packet command. We queue a request sense packet command in
  *      the head of the request list.
  */
-static ide_startstop_t idetape_retry_pc (ide_drive_t *drive)
+static void idetape_retry_pc(ide_drive_t *drive)
 {
         idetape_tape_t *tape = drive->driver_data;
         struct ide_atapi_pc *pc;
@@ -710,7 +752,6 @@ static ide_startstop_t idetape_retry_pc (ide_drive_t *drive)
         idetape_create_request_sense_cmd(pc);
         set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags);
         idetape_queue_pc_head(drive, pc, rq);
-        return ide_stopped;
 }
 
 /*
@@ -727,7 +768,26 @@ static void idetape_postpone_request(ide_drive_t *drive)
         ide_stall_queue(drive, tape->dsc_poll_freq);
 }
 
-typedef void idetape_io_buf(ide_drive_t *, struct ide_atapi_pc *, unsigned int);
+static void ide_tape_handle_dsc(ide_drive_t *drive)
+{
+        idetape_tape_t *tape = drive->driver_data;
+
+        /* Media access command */
+        tape->dsc_polling_start = jiffies;
+        tape->dsc_poll_freq = IDETAPE_DSC_MA_FAST;
+        tape->dsc_timeout = jiffies + IDETAPE_DSC_MA_TIMEOUT;
+        /* Allow ide.c to handle other requests */
+        idetape_postpone_request(drive);
+}
+
+static void ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
+                                unsigned int bcount, int write)
+{
+        if (write)
+                idetape_output_buffers(drive, pc, bcount);
+        else
+                idetape_input_buffers(drive, pc, bcount);
+}
 
 /*
  * This is the usual interrupt handler which will be called during a packet
@@ -738,169 +798,11 @@ typedef void idetape_io_buf(ide_drive_t *, struct ide_atapi_pc *, unsigned int);
  */
 static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
 {
-        ide_hwif_t *hwif = drive->hwif;
         idetape_tape_t *tape = drive->driver_data;
-        struct ide_atapi_pc *pc = tape->pc;
-        xfer_func_t *xferfunc;
-        idetape_io_buf *iobuf;
-        unsigned int temp;
-#if SIMULATE_ERRORS
-        static int error_sim_count;
-#endif
-        u16 bcount;
-        u8 stat, ireason;
-
-        debug_log(DBG_PROCS, "Enter %s - interrupt handler\n", __func__);
-
-        /* Clear the interrupt */
-        stat = ide_read_status(drive);
-
-        if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
-                if (hwif->dma_ops->dma_end(drive) || (stat & ERR_STAT)) {
-                        /*
-                         * A DMA error is sometimes expected. For example,
-                         * if the tape is crossing a filemark during a
-                         * READ command, it will issue an irq and position
-                         * itself before the filemark, so that only a partial
-                         * data transfer will occur (which causes the DMA
-                         * error). In that case, we will later ask the tape
-                         * how much bytes of the original request were
-                         * actually transferred (we can't receive that
-                         * information from the DMA engine on most chipsets).
-                         */
-
-                        /*
-                         * On the contrary, a DMA error is never expected;
-                         * it usually indicates a hardware error or abort.
-                         * If the tape crosses a filemark during a READ
-                         * command, it will issue an irq and position itself
-                         * after the filemark (not before). Only a partial
-                         * data transfer will occur, but no DMA error.
-                         * (AS, 19 Apr 2001)
-                         */
-                        pc->flags |= PC_FLAG_DMA_ERROR;
-                } else {
-                        pc->xferred = pc->req_xfer;
-                        idetape_update_buffers(pc);
-                }
-                debug_log(DBG_PROCS, "DMA finished\n");
-
-        }
-
-        /* No more interrupts */
-        if ((stat & DRQ_STAT) == 0) {
-                debug_log(DBG_SENSE, "Packet command completed, %d bytes"
-                                " transferred\n", pc->xferred);
-
-                pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
-                local_irq_enable();
-
-#if SIMULATE_ERRORS
-                if ((pc->c[0] == WRITE_6 || pc->c[0] == READ_6) &&
-                    (++error_sim_count % 100) == 0) {
-                        printk(KERN_INFO "ide-tape: %s: simulating error\n",
-                                tape->name);
-                        stat |= ERR_STAT;
-                }
-#endif
-                if ((stat & ERR_STAT) && pc->c[0] == REQUEST_SENSE)
-                        stat &= ~ERR_STAT;
-                if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) {
-                        /* Error detected */
-                        debug_log(DBG_ERR, "%s: I/O error\n", tape->name);
-
-                        if (pc->c[0] == REQUEST_SENSE) {
-                                printk(KERN_ERR "ide-tape: I/O error in request"
-                                                " sense command\n");
-                                return ide_do_reset(drive);
-                        }
-                        debug_log(DBG_ERR, "[cmd %x]: check condition\n",
-                                        pc->c[0]);
-
-                        /* Retry operation */
-                        return idetape_retry_pc(drive);
-                }
-                pc->error = 0;
-                if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) &&
-                    (stat & SEEK_STAT) == 0) {
-                        /* Media access command */
-                        tape->dsc_polling_start = jiffies;
-                        tape->dsc_poll_freq = IDETAPE_DSC_MA_FAST;
-                        tape->dsc_timeout = jiffies + IDETAPE_DSC_MA_TIMEOUT;
-                        /* Allow ide.c to handle other requests */
-                        idetape_postpone_request(drive);
-                        return ide_stopped;
-                }
-                if (tape->failed_pc == pc)
-                        tape->failed_pc = NULL;
-                /* Command finished - Call the callback function */
-                return pc->idetape_callback(drive);
-        }
-
-        if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
-                pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
-                printk(KERN_ERR "ide-tape: The tape wants to issue more "
-                                "interrupts in DMA mode\n");
-                printk(KERN_ERR "ide-tape: DMA disabled, reverting to PIO\n");
-                ide_dma_off(drive);
-                return ide_do_reset(drive);
-        }
-        /* Get the number of bytes to transfer on this interrupt. */
-        bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) |
-                  hwif->INB(hwif->io_ports.lbam_addr);
-
-        ireason = hwif->INB(hwif->io_ports.nsect_addr);
-
-        if (ireason & CD) {
-                printk(KERN_ERR "ide-tape: CoD != 0 in %s\n", __func__);
-                return ide_do_reset(drive);
-        }
-        if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) {
-                /* Hopefully, we will never get here */
-                printk(KERN_ERR "ide-tape: We wanted to %s, ",
-                                (ireason & IO) ? "Write" : "Read");
-                printk(KERN_ERR "ide-tape: but the tape wants us to %s !\n",
-                                (ireason & IO) ? "Read" : "Write");
-                return ide_do_reset(drive);
-        }
-        if (!(pc->flags & PC_FLAG_WRITING)) {
-                /* Reading - Check that we have enough space */
-                temp = pc->xferred + bcount;
-                if (temp > pc->req_xfer) {
-                        if (temp > pc->buf_size) {
-                                printk(KERN_ERR "ide-tape: The tape wants to "
-                                        "send us more data than expected "
-                                        "- discarding data\n");
-                                ide_pad_transfer(drive, 0, bcount);
-                                ide_set_handler(drive, &idetape_pc_intr,
-                                                IDETAPE_WAIT_CMD, NULL);
-                                return ide_started;
-                        }
-                        debug_log(DBG_SENSE, "The tape wants to send us more "
-                                "data than expected - allowing transfer\n");
-                }
-                iobuf = &idetape_input_buffers;
-                xferfunc = hwif->input_data;
-        } else {
-                iobuf = &idetape_output_buffers;
-                xferfunc = hwif->output_data;
-        }
-
-        if (pc->bh)
-                iobuf(drive, pc, bcount);
-        else
-                xferfunc(drive, NULL, pc->cur_pos, bcount);
-
-        /* Update the current position */
-        pc->xferred += bcount;
-        pc->cur_pos += bcount;
-
-        debug_log(DBG_SENSE, "[cmd %x] transferred %d bytes on that intr.\n",
-                        pc->c[0], bcount);
 
-        /* And set the interrupt handler again */
-        ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL);
-        return ide_started;
+        return ide_pc_intr(drive, tape->pc, idetape_pc_intr, IDETAPE_WAIT_CMD,
+                           NULL, idetape_update_buffers, idetape_retry_pc,
+                           ide_tape_handle_dsc, ide_tape_io_buffers);
 }
 
 /*
@@ -941,56 +843,16 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
  */
 static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive)
 {
-        ide_hwif_t *hwif = drive->hwif;
         idetape_tape_t *tape = drive->driver_data;
-        struct ide_atapi_pc *pc = tape->pc;
-        int retries = 100;
-        ide_startstop_t startstop;
-        u8 ireason;
-
-        if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) {
-                printk(KERN_ERR "ide-tape: Strange, packet command initiated "
-                                "yet DRQ isn't asserted\n");
-                return startstop;
-        }
-        ireason = hwif->INB(hwif->io_ports.nsect_addr);
-        while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) {
-                printk(KERN_ERR "ide-tape: (IO,CoD != (0,1) while issuing "
-                                "a packet command, retrying\n");
-                udelay(100);
-                ireason = hwif->INB(hwif->io_ports.nsect_addr);
-                if (retries == 0) {
-                        printk(KERN_ERR "ide-tape: (IO,CoD != (0,1) while "
-                                        "issuing a packet command, ignoring\n");
-                        ireason |= CD;
-                        ireason &= ~IO;
-                }
-        }
-        if ((ireason & CD) == 0 || (ireason & IO)) {
-                printk(KERN_ERR "ide-tape: (IO,CoD) != (0,1) while issuing "
-                                "a packet command\n");
-                return ide_do_reset(drive);
-        }
-        /* Set the interrupt routine */
-        ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL);
-#ifdef CONFIG_BLK_DEV_IDEDMA
-        /* Begin DMA, if necessary */
-        if (pc->flags & PC_FLAG_DMA_IN_PROGRESS)
-                hwif->dma_ops->dma_start(drive);
-#endif
-        /* Send the actual packet */
-        hwif->output_data(drive, NULL, pc->c, 12);
 
-        return ide_started;
+        return ide_transfer_pc(drive, tape->pc, idetape_pc_intr,
+                               IDETAPE_WAIT_CMD, NULL);
 }
 
 static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
                 struct ide_atapi_pc *pc)
 {
-        ide_hwif_t *hwif = drive->hwif;
         idetape_tape_t *tape = drive->driver_data;
-        int dma_ok = 0;
-        u16 bcount;
 
         if (tape->pc->c[0] == REQUEST_SENSE &&
             pc->c[0] == REQUEST_SENSE) {
@@ -1025,50 +887,15 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
                         pc->error = IDETAPE_ERROR_GENERAL;
                 }
                 tape->failed_pc = NULL;
-                return pc->idetape_callback(drive);
+                pc->callback(drive);
+                return ide_stopped;
         }
         debug_log(DBG_SENSE, "Retry #%d, cmd = %02X\n", pc->retries, pc->c[0]);
 
         pc->retries++;
-        /* We haven't transferred any data yet */
-        pc->xferred = 0;
-        pc->cur_pos = pc->buf;
-        /* Request to transfer the entire buffer at once */
-        bcount = pc->req_xfer;
 
-        if (pc->flags & PC_FLAG_DMA_ERROR) {
-                pc->flags &= ~PC_FLAG_DMA_ERROR;
-                printk(KERN_WARNING "ide-tape: DMA disabled, "
-                                "reverting to PIO\n");
-                ide_dma_off(drive);
-        }
-        if ((pc->flags & PC_FLAG_DMA_RECOMMENDED) && drive->using_dma)
-                dma_ok = !hwif->dma_ops->dma_setup(drive);
-
-        ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK |
-                           IDE_TFLAG_OUT_DEVICE, bcount, dma_ok);
-
-        if (dma_ok)
-                /* Will begin DMA later */
-                pc->flags |= PC_FLAG_DMA_IN_PROGRESS;
-        if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) {
-                ide_execute_command(drive, WIN_PACKETCMD, &idetape_transfer_pc,
-                                    IDETAPE_WAIT_CMD, NULL);
-                return ide_started;
-        } else {
-                ide_execute_pkt_cmd(drive);
-                return idetape_transfer_pc(drive);
-        }
-}
-
-static ide_startstop_t idetape_pc_callback(ide_drive_t *drive)
-{
-        idetape_tape_t *tape = drive->driver_data;
-
-        debug_log(DBG_PROCS, "Enter %s\n", __func__);
-
-        idetape_end_request(drive, tape->pc->error ? 0 : 1, 0);
-        return ide_stopped;
+        return ide_issue_pc(drive, pc, idetape_transfer_pc,
+                            IDETAPE_WAIT_CMD, NULL);
 }
 
 /* A mode sense command is used to "sense" tape parameters. */
@@ -1096,7 +923,6 @@ static void idetape_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code)
                 pc->req_xfer = 24;
         else
                 pc->req_xfer = 50;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
@@ -1114,80 +940,41 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
                                 printk(KERN_ERR "ide-tape: %s: I/O error, ",
                                                 tape->name);
                         /* Retry operation */
-                        return idetape_retry_pc(drive);
+                        idetape_retry_pc(drive);
+                        return ide_stopped;
                 }
                 pc->error = 0;
-                if (tape->failed_pc == pc)
-                        tape->failed_pc = NULL;
         } else {
                 pc->error = IDETAPE_ERROR_GENERAL;
                 tape->failed_pc = NULL;
         }
-        return pc->idetape_callback(drive);
-}
-
-static ide_startstop_t idetape_rw_callback(ide_drive_t *drive)
-{
-        idetape_tape_t *tape = drive->driver_data;
-        struct request *rq = HWGROUP(drive)->rq;
-        int blocks = tape->pc->xferred / tape->blk_size;
-
-        tape->avg_size += blocks * tape->blk_size;
-
-        if (time_after_eq(jiffies, tape->avg_time + HZ)) {
-                tape->avg_speed = tape->avg_size * HZ /
-                                (jiffies - tape->avg_time) / 1024;
-                tape->avg_size = 0;
-                tape->avg_time = jiffies;
-        }
-        debug_log(DBG_PROCS, "Enter %s\n", __func__);
-
-        tape->first_frame += blocks;
-        rq->current_nr_sectors -= blocks;
-
-        if (!tape->pc->error)
-                idetape_end_request(drive, 1, 0);
-        else
-                idetape_end_request(drive, tape->pc->error, 0);
+        pc->callback(drive);
         return ide_stopped;
 }
 
-static void idetape_create_read_cmd(idetape_tape_t *tape,
-                struct ide_atapi_pc *pc,
-                unsigned int length, struct idetape_bh *bh)
+static void ide_tape_create_rw_cmd(idetape_tape_t *tape,
+                struct ide_atapi_pc *pc, unsigned int length,
+                struct idetape_bh *bh, u8 opcode)
 {
         idetape_init_pc(pc);
-        pc->c[0] = READ_6;
         put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]);
         pc->c[1] = 1;
-        pc->idetape_callback = &idetape_rw_callback;
         pc->bh = bh;
-        atomic_set(&bh->b_count, 0);
         pc->buf = NULL;
         pc->buf_size = length * tape->blk_size;
         pc->req_xfer = pc->buf_size;
         if (pc->req_xfer == tape->buffer_size)
-                pc->flags |= PC_FLAG_DMA_RECOMMENDED;
-}
+                pc->flags |= PC_FLAG_DMA_OK;
 
-static void idetape_create_write_cmd(idetape_tape_t *tape,
-                struct ide_atapi_pc *pc,
-                unsigned int length, struct idetape_bh *bh)
-{
-        idetape_init_pc(pc);
-        pc->c[0] = WRITE_6;
-        put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]);
-        pc->c[1] = 1;
-        pc->idetape_callback = &idetape_rw_callback;
-        pc->flags |= PC_FLAG_WRITING;
-        pc->bh = bh;
-        pc->b_data = bh->b_data;
-        pc->b_count = atomic_read(&bh->b_count);
-        pc->buf = NULL;
-        pc->buf_size = length * tape->blk_size;
-        pc->req_xfer = pc->buf_size;
-        if (pc->req_xfer == tape->buffer_size)
-                pc->flags |= PC_FLAG_DMA_RECOMMENDED;
+        if (opcode == READ_6) {
+                pc->c[0] = READ_6;
+                atomic_set(&bh->b_count, 0);
+        } else if (opcode == WRITE_6) {
+                pc->c[0] = WRITE_6;
+                pc->flags |= PC_FLAG_WRITING;
+                pc->b_data = bh->b_data;
+                pc->b_count = atomic_read(&bh->b_count);
+        }
 }
 
 static ide_startstop_t idetape_do_request(ide_drive_t *drive,
@@ -1211,8 +998,10 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
         }
 
         /* Retry a failed packet command */
-        if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE)
-                return idetape_issue_pc(drive, tape->failed_pc);
+        if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE) {
+                pc = tape->failed_pc;
+                goto out;
+        }
 
         if (postponed_rq != NULL)
                 if (rq != postponed_rq) {
@@ -1262,14 +1051,16 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
         }
         if (rq->cmd[0] & REQ_IDETAPE_READ) {
                 pc = idetape_next_pc_storage(drive);
-                idetape_create_read_cmd(tape, pc, rq->current_nr_sectors,
-                                        (struct idetape_bh *)rq->special);
+                ide_tape_create_rw_cmd(tape, pc, rq->current_nr_sectors,
+                                        (struct idetape_bh *)rq->special,
+                                        READ_6);
                 goto out;
         }
         if (rq->cmd[0] & REQ_IDETAPE_WRITE) {
                 pc = idetape_next_pc_storage(drive);
-                idetape_create_write_cmd(tape, pc, rq->current_nr_sectors,
-                                         (struct idetape_bh *)rq->special);
+                ide_tape_create_rw_cmd(tape, pc, rq->current_nr_sectors,
+                                         (struct idetape_bh *)rq->special,
+                                         WRITE_6);
                 goto out;
         }
         if (rq->cmd[0] & REQ_IDETAPE_PC1) {
@@ -1284,6 +1075,9 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
         }
         BUG();
 out:
+        if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags))
+                pc->flags |= PC_FLAG_DRQ_INTERRUPT;
+
         return idetape_issue_pc(drive, pc);
 }
 
@@ -1447,40 +1241,6 @@ static void idetape_init_merge_buffer(idetape_tape_t *tape)
         }
 }
 
-static ide_startstop_t idetape_read_position_callback(ide_drive_t *drive)
-{
-        idetape_tape_t *tape = drive->driver_data;
-        u8 *readpos = tape->pc->buf;
-
-        debug_log(DBG_PROCS, "Enter %s\n", __func__);
-
-        if (!tape->pc->error) {
-                debug_log(DBG_SENSE, "BOP - %s\n",
-                                (readpos[0] & 0x80) ? "Yes" : "No");
-                debug_log(DBG_SENSE, "EOP - %s\n",
-                                (readpos[0] & 0x40) ? "Yes" : "No");
-
-                if (readpos[0] & 0x4) {
-                        printk(KERN_INFO "ide-tape: Block location is unknown"
-                                         "to the tape\n");
-                        clear_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags);
-                        idetape_end_request(drive, 0, 0);
-                } else {
-                        debug_log(DBG_SENSE, "Block Location - %u\n",
-                                        be32_to_cpu(*(u32 *)&readpos[4]));
-
-                        tape->partition = readpos[1];
-                        tape->first_frame =
-                                be32_to_cpu(*(u32 *)&readpos[4]);
-                        set_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags);
-                        idetape_end_request(drive, 1, 0);
-                }
-        } else {
-                idetape_end_request(drive, 0, 0);
-        }
-        return ide_stopped;
-}
-
 /*
  * Write a filemark if write_filemark=1. Flush the device buffers without
  * writing a filemark otherwise.
@@ -1492,14 +1252,12 @@ static void idetape_create_write_filemark_cmd(ide_drive_t *drive,
         pc->c[0] = WRITE_FILEMARKS;
         pc->c[4] = write_filemark;
         pc->flags |= PC_FLAG_WAIT_FOR_DSC;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 static void idetape_create_test_unit_ready_cmd(struct ide_atapi_pc *pc)
 {
         idetape_init_pc(pc);
         pc->c[0] = TEST_UNIT_READY;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 /*
@@ -1518,12 +1276,16 @@ static void idetape_create_test_unit_ready_cmd(struct ide_atapi_pc *pc)
 static int idetape_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc)
 {
         struct ide_tape_obj *tape = drive->driver_data;
-        struct request rq;
+        struct request *rq;
+        int error;
 
-        idetape_init_rq(&rq, REQ_IDETAPE_PC1);
-        rq.buffer = (char *) pc;
-        rq.rq_disk = tape->disk;
-        return ide_do_drive_cmd(drive, &rq, ide_wait);
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->cmd_type = REQ_TYPE_SPECIAL;
+        rq->cmd[0] = REQ_IDETAPE_PC1;
+        rq->buffer = (char *)pc;
+        error = blk_execute_rq(drive->queue, tape->disk, rq, 0);
+        blk_put_request(rq);
+        return error;
 }
 
 static void idetape_create_load_unload_cmd(ide_drive_t *drive,
@@ -1533,7 +1295,6 @@ static void idetape_create_load_unload_cmd(ide_drive_t *drive,
         pc->c[0] = START_STOP;
         pc->c[4] = cmd;
         pc->flags |= PC_FLAG_WAIT_FOR_DSC;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout)
@@ -1585,7 +1346,6 @@ static void idetape_create_read_position_cmd(struct ide_atapi_pc *pc)
         idetape_init_pc(pc);
         pc->c[0] = READ_POSITION;
         pc->req_xfer = 20;
-        pc->idetape_callback = &idetape_read_position_callback;
 }
 
 static int idetape_read_position(ide_drive_t *drive)
@@ -1613,7 +1373,6 @@ static void idetape_create_locate_cmd(ide_drive_t *drive,
         put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[3]);
         pc->c[8] = partition;
         pc->flags |= PC_FLAG_WAIT_FOR_DSC;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 static int idetape_create_prevent_cmd(ide_drive_t *drive,
@@ -1628,7 +1387,6 @@ static int idetape_create_prevent_cmd(ide_drive_t *drive,
         idetape_init_pc(pc);
         pc->c[0] = ALLOW_MEDIUM_REMOVAL;
         pc->c[4] = prevent;
-        pc->idetape_callback = &idetape_pc_callback;
         return 1;
 }
 
@@ -1700,26 +1458,33 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int blocks,
                                  struct idetape_bh *bh)
 {
         idetape_tape_t *tape = drive->driver_data;
-        struct request rq;
+        struct request *rq;
+        int ret, errors;
 
         debug_log(DBG_SENSE, "%s: cmd=%d\n", __func__, cmd);
 
-        idetape_init_rq(&rq, cmd);
-        rq.rq_disk = tape->disk;
-        rq.special = (void *)bh;
-        rq.sector = tape->first_frame;
-        rq.nr_sectors           = blocks;
-        rq.current_nr_sectors   = blocks;
-        (void) ide_do_drive_cmd(drive, &rq, ide_wait);
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->cmd_type = REQ_TYPE_SPECIAL;
+        rq->cmd[0] = cmd;
+        rq->rq_disk = tape->disk;
+        rq->special = (void *)bh;
+        rq->sector = tape->first_frame;
+        rq->nr_sectors = blocks;
+        rq->current_nr_sectors = blocks;
+        blk_execute_rq(drive->queue, tape->disk, rq, 0);
+
+        errors = rq->errors;
+        ret = tape->blk_size * (blocks - rq->current_nr_sectors);
+        blk_put_request(rq);
 
         if ((cmd & (REQ_IDETAPE_READ | REQ_IDETAPE_WRITE)) == 0)
                 return 0;
 
         if (tape->merge_bh)
                 idetape_init_merge_buffer(tape);
-        if (rq.errors == IDETAPE_ERROR_GENERAL)
+        if (errors == IDETAPE_ERROR_GENERAL)
                 return -EIO;
-        return (tape->blk_size * (blocks-rq.current_nr_sectors));
+        return ret;
 }
 
 static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc)
@@ -1728,7 +1493,6 @@ static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc)
         pc->c[0] = INQUIRY;
         pc->c[4] = 254;
         pc->req_xfer = 254;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 static void idetape_create_rewind_cmd(ide_drive_t *drive,
@@ -1737,7 +1501,6 @@ static void idetape_create_rewind_cmd(ide_drive_t *drive,
         idetape_init_pc(pc);
         pc->c[0] = REZERO_UNIT;
         pc->flags |= PC_FLAG_WAIT_FOR_DSC;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 static void idetape_create_erase_cmd(struct ide_atapi_pc *pc)
@@ -1746,7 +1509,6 @@ static void idetape_create_erase_cmd(struct ide_atapi_pc *pc)
         pc->c[0] = ERASE;
         pc->c[1] = 1;
         pc->flags |= PC_FLAG_WAIT_FOR_DSC;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd)
@@ -1756,7 +1518,6 @@ static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd)
         put_unaligned(cpu_to_be32(count), (unsigned int *) &pc->c[1]);
         pc->c[1] = cmd;
         pc->flags |= PC_FLAG_WAIT_FOR_DSC;
-        pc->idetape_callback = &idetape_pc_callback;
 }
 
 /* Queue up a character device originated write request. */
@@ -2751,9 +2512,8 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor)
          * Ensure that the number we got makes sense; limit it within
          * IDETAPE_DSC_RW_MIN and IDETAPE_DSC_RW_MAX.
          */
-        tape->best_dsc_rw_freq = max_t(unsigned long,
-                                min_t(unsigned long, t, IDETAPE_DSC_RW_MAX),
-                                IDETAPE_DSC_RW_MIN);
+        tape->best_dsc_rw_freq = clamp_t(unsigned long, t, IDETAPE_DSC_RW_MIN,
+                                         IDETAPE_DSC_RW_MAX);
         printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, "
                 "%lums tDSC%s\n",
                 drive->name, tape->name, *(u16 *)&tape->caps[14],
@@ -2905,11 +2665,6 @@ static int ide_tape_probe(ide_drive_t *drive)
                                 " the driver\n", drive->name);
                 goto failed;
         }
-        if (drive->scsi) {
-                printk(KERN_INFO "ide-tape: passing drive %s to ide-scsi"
-                                 " emulation.\n", drive->name);
-                goto failed;
-        }
         tape = kzalloc(sizeof(idetape_tape_t), GFP_KERNEL);
         if (tape == NULL) {
                 printk(KERN_ERR "ide-tape: %s: Can't allocate a tape struct\n",
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index ab545ffa154..cf55a48a7dd 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -109,13 +109,15 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
 
         if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
                 ide_tf_dump(drive->name, tf);
+                ide_set_irq(drive, 1);
+                SELECT_MASK(drive, 0);
                 hwif->tf_load(drive, task);
         }
 
         switch (task->data_phase) {
         case TASKFILE_MULTI_OUT:
         case TASKFILE_OUT:
-                hwif->OUTBSYNC(drive, tf->command, hwif->io_ports.command_addr);
+                hwif->OUTBSYNC(hwif, tf->command, hwif->io_ports.command_addr);
                 ndelay(400);    /* FIXME */
                 return pre_task_out_intr(drive, task->rq);
         case TASKFILE_MULTI_IN:
@@ -492,11 +494,12 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
 
 int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect)
 {
-        struct request rq;
+        struct request *rq;
+        int error;
 
-        blk_rq_init(NULL, &rq);
-        rq.cmd_type = REQ_TYPE_ATA_TASKFILE;
-        rq.buffer = buf;
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
+        rq->buffer = buf;
 
         /*
          * (ks) We transfer currently only whole sectors.
@@ -504,16 +507,19 @@ int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect)
          * if we would find a solution to transfer any size.
          * To support special commands like READ LONG.
          */
-        rq.hard_nr_sectors = rq.nr_sectors = nsect;
-        rq.hard_cur_sectors = rq.current_nr_sectors = nsect;
+        rq->hard_nr_sectors = rq->nr_sectors = nsect;
+        rq->hard_cur_sectors = rq->current_nr_sectors = nsect;
 
         if (task->tf_flags & IDE_TFLAG_WRITE)
-                rq.cmd_flags |= REQ_RW;
+                rq->cmd_flags |= REQ_RW;
 
-        rq.special = task;
-        task->rq = &rq;
+        rq->special = task;
+        task->rq = rq;
 
-        return ide_do_drive_cmd(drive, &rq, ide_wait);
+        error = blk_execute_rq(drive->queue, NULL, rq, 0);
+        blk_put_request(rq);
+
+        return error;
 }
 
 EXPORT_SYMBOL(ide_raw_taskfile);
@@ -739,12 +745,14 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
         struct hd_driveid *id = drive->id;
 
         if (NULL == (void *) arg) {
-                struct request rq;
+                struct request *rq;
 
-                ide_init_drive_cmd(&rq);
-                rq.cmd_type = REQ_TYPE_ATA_TASKFILE;
+                rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+                rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
+                err = blk_execute_rq(drive->queue, NULL, rq, 0);
+                blk_put_request(rq);
 
-                return ide_do_drive_cmd(drive, &rq, ide_wait);
+                return err;
         }
 
         if (copy_from_user(args, (void __user *)arg, 4))
diff --git a/drivers/ide/ide-timing.h b/drivers/ide/ide-timing.h
index 3b12ffe7707..2e91c5870b4 100644
--- a/drivers/ide/ide-timing.h
+++ b/drivers/ide/ide-timing.h
@@ -95,7 +95,6 @@ static struct ide_timing ide_timing[] = {
 #define IDE_TIMING_UDMA         0x80
 #define IDE_TIMING_ALL          0xff
 
-#define FIT(v,vmin,vmax)        max_t(short,min_t(short,v,vmax),vmin)
 #define ENOUGH(v,unit)          (((v)-1)/(unit)+1)
 #define EZ(v,unit)              ((v)?ENOUGH(v,unit):0)
 
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 300431d080a..2b8453510e0 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -86,13 +86,10 @@ static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
                                         IDE6_MAJOR, IDE7_MAJOR,
                                         IDE8_MAJOR, IDE9_MAJOR };
 
-static int idebus_parameter;    /* holds the "idebus=" parameter */
-static int system_bus_speed;    /* holds what we think is VESA/PCI bus speed */
-
 DEFINE_MUTEX(ide_cfg_mtx);
- __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
 
-int noautodma = 0;
+__cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
+EXPORT_SYMBOL(ide_lock);
 
 ide_hwif_t ide_hwifs[MAX_HWIFS];        /* master data repository */
 
@@ -139,7 +136,6 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif)
                 drive->media                    = ide_disk;
                 drive->select.all               = (unit<<4)|0xa0;
                 drive->hwif                     = hwif;
-                drive->ctl                      = 0x08;
                 drive->ready_stat               = READY_STAT;
                 drive->bad_wstat                = BAD_W_STAT;
                 drive->special.b.recalibrate    = 1;
@@ -154,32 +150,9 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif)
         }
 }
 
-/*
- * init_ide_data() sets reasonable default values into all fields
- * of all instances of the hwifs and drives, but only on the first call.
- * Subsequent calls have no effect (they don't wipe out anything).
- *
- * This routine is normally called at driver initialization time,
- * but may also be called MUCH earlier during kernel "command-line"
- * parameter processing.  As such, we cannot depend on any other parts
- * of the kernel (such as memory allocation) to be functioning yet.
- *
- * This is too bad, as otherwise we could dynamically allocate the
- * ide_drive_t structs as needed, rather than always consuming memory
- * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them.
- *
- * FIXME: We should stuff the setup data into __init and copy the
- * relevant hwifs/allocate them properly during boot.
- */
-#define MAGIC_COOKIE 0x12345678
 static void __init init_ide_data (void)
 {
         unsigned int index;
-        static unsigned long magic_cookie = MAGIC_COOKIE;
-
-        if (magic_cookie != MAGIC_COOKIE)
-                return;         /* already initialized */
-        magic_cookie = 0;
 
         /* Initialise all interface structures */
         for (index = 0; index < MAX_HWIFS; ++index) {
@@ -189,38 +162,6 @@ static void __init init_ide_data (void)
         }
 }
 
-/**
- *      ide_system_bus_speed    -       guess bus speed
- *
- *      ide_system_bus_speed() returns what we think is the system VESA/PCI
- *      bus speed (in MHz). This is used for calculating interface PIO timings.
- *      The default is 40 for known PCI systems, 50 otherwise.
- *      The "idebus=xx" parameter can be used to override this value.
- *      The actual value to be used is computed/displayed the first time
- *      through. Drivers should only use this as a last resort.
- *
- *      Returns a guessed speed in MHz.
- */
-
-static int ide_system_bus_speed(void)
-{
-#ifdef CONFIG_PCI
-        static struct pci_device_id pci_default[] = {
-                { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) },
-                { }
-        };
-#else
-#define pci_default 0
-#endif /* CONFIG_PCI */
-
-        /* user supplied value */
-        if (idebus_parameter)
-                return idebus_parameter;
-
-        /* safe default value for PCI or VESA and PCI*/
-        return pci_dev_present(pci_default) ? 33 : 50;
-}
-
 void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
 {
         ide_hwgroup_t *hwgroup = hwif->hwgroup;
@@ -498,7 +439,7 @@ out:
 
 int set_pio_mode(ide_drive_t *drive, int arg)
 {
-        struct request rq;
+        struct request *rq;
         ide_hwif_t *hwif = drive->hwif;
         const struct ide_port_ops *port_ops = hwif->port_ops;
 
@@ -512,12 +453,15 @@ int set_pio_mode(ide_drive_t *drive, int arg)
         if (drive->special.b.set_tune)
                 return -EBUSY;
 
-        ide_init_drive_cmd(&rq);
-        rq.cmd_type = REQ_TYPE_ATA_TASKFILE;
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
 
         drive->tune_req = (u8) arg;
         drive->special.b.set_tune = 1;
-        (void) ide_do_drive_cmd(drive, &rq, ide_wait);
+
+        blk_execute_rq(drive->queue, NULL, rq, 0);
+        blk_put_request(rq);
+
         return 0;
 }
 
@@ -537,25 +481,11 @@ static int set_unmaskirq(ide_drive_t *drive, int arg)
         return 0;
 }
 
-/**
- *      system_bus_clock        -       clock guess
- *
- *      External version of the bus clock guess used by very old IDE drivers
- *      for things like VLB timings. Should not be used.
- */
-
-int system_bus_clock (void)
-{
-        return system_bus_speed;
-}
-
-EXPORT_SYMBOL(system_bus_clock);
-
 static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 {
         ide_drive_t *drive = dev->driver_data;
         ide_hwif_t *hwif = HWIF(drive);
-        struct request rq;
+        struct request *rq;
         struct request_pm_state rqpm;
         ide_task_t args;
         int ret;
@@ -564,18 +494,19 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
         if (!(drive->dn % 2))
                 ide_acpi_get_timing(hwif);
 
-        blk_rq_init(NULL, &rq);
         memset(&rqpm, 0, sizeof(rqpm));
         memset(&args, 0, sizeof(args));
-        rq.cmd_type = REQ_TYPE_PM_SUSPEND;
-        rq.special = &args;
-        rq.data = &rqpm;
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->cmd_type = REQ_TYPE_PM_SUSPEND;
+        rq->special = &args;
+        rq->data = &rqpm;
         rqpm.pm_step = ide_pm_state_start_suspend;
         if (mesg.event == PM_EVENT_PRETHAW)
                 mesg.event = PM_EVENT_FREEZE;
         rqpm.pm_state = mesg.event;
 
-        ret = ide_do_drive_cmd(drive, &rq, ide_wait);
+        ret = blk_execute_rq(drive->queue, NULL, rq, 0);
+        blk_put_request(rq);
         /* only call ACPI _PS3 after both drivers are suspended */
         if (!ret && (((drive->dn % 2) && hwif->drives[0].present
                  && hwif->drives[1].present)
@@ -589,7 +520,7 @@ static int generic_ide_resume(struct device *dev)
 {
         ide_drive_t *drive = dev->driver_data;
         ide_hwif_t *hwif = HWIF(drive);
-        struct request rq;
+        struct request *rq;
         struct request_pm_state rqpm;
         ide_task_t args;
         int err;
@@ -602,16 +533,18 @@ static int generic_ide_resume(struct device *dev)
 
         ide_acpi_exec_tfs(drive);
 
-        blk_rq_init(NULL, &rq);
         memset(&rqpm, 0, sizeof(rqpm));
         memset(&args, 0, sizeof(args));
-        rq.cmd_type = REQ_TYPE_PM_RESUME;
-        rq.special = &args;
-        rq.data = &rqpm;
+        rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+        rq->cmd_type = REQ_TYPE_PM_RESUME;
+        rq->cmd_flags |= REQ_PREEMPT;
+        rq->special = &args;
+        rq->data = &rqpm;
         rqpm.pm_step = ide_pm_state_start_resume;
         rqpm.pm_state = PM_EVENT_ON;
 
-        err = ide_do_drive_cmd(drive, &rq, ide_head_wait);
+        err = blk_execute_rq(drive->queue, NULL, rq, 1);
+        blk_put_request(rq);
 
         if (err == 0 && dev->driver) {
                 ide_driver_t *drv = to_ide_driver(dev->driver);
@@ -764,212 +697,6 @@ set_val:
 
 EXPORT_SYMBOL(generic_ide_ioctl);
 
-/*
- * stridx() returns the offset of c within s,
- * or -1 if c is '\0' or not found within s.
- */
-static int __init stridx (const char *s, char c)
-{
-        char *i = strchr(s, c);
-        return (i && c) ? i - s : -1;
-}
-
-/*
- * match_parm() does parsing for ide_setup():
- *
- * 1. the first char of s must be '='.
- * 2. if the remainder matches one of the supplied keywords,
- *     the index (1 based) of the keyword is negated and returned.
- * 3. if the remainder is a series of no more than max_vals numbers
- *     separated by commas, the numbers are saved in vals[] and a
- *     count of how many were saved is returned.  Base10 is assumed,
- *     and base16 is allowed when prefixed with "0x".
- * 4. otherwise, zero is returned.
- */
-static int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals)
-{
-        static const char *decimal = "0123456789";
-        static const char *hex = "0123456789abcdef";
-        int i, n;
-
-        if (*s++ == '=') {
-                /*
-                 * Try matching against the supplied keywords,
-                 * and return -(index+1) if we match one
-                 */
-                if (keywords != NULL) {
-                        for (i = 0; *keywords != NULL; ++i) {
-                                if (!strcmp(s, *keywords++))
-                                        return -(i+1);
-                        }
-                }
-                /*
-                 * Look for a series of no more than "max_vals"
-                 * numeric values separated by commas, in base10,
-                 * or base16 when prefixed with "0x".
-                 * Return a count of how many were found.
-                 */
-                for (n = 0; (i = stridx(decimal, *s)) >= 0;) {
-                        vals[n] = i;
-                        while ((i = stridx(decimal, *++s)) >= 0)
-                                vals[n] = (vals[n] * 10) + i;
-                        if (*s == 'x' && !vals[n]) {
-                                while ((i = stridx(hex, *++s)) >= 0)
-                                        vals[n] = (vals[n] * 0x10) + i;
-                        }
-                        if (++n == max_vals)
-                                break;
-                        if (*s == ',' || *s == ';')
-                                ++s;
-                }
-                if (!*s)
-                        return n;
-        }
-        return 0;       /* zero = nothing matched */
-}
-
-/*
- * ide_setup() gets called VERY EARLY during initialization,
- * to handle kernel "command line" strings beginning with "hdx=" or "ide".
- *
- * Remember to update Documentation/ide/ide.txt if you change something here.
- */
-static int __init ide_setup(char *s)
-{
-        ide_hwif_t *hwif;
-        ide_drive_t *drive;
-        unsigned int hw, unit;
-        int vals[3];
-        const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1);
-
-        if (strncmp(s,"hd",2) == 0 && s[2] == '=')      /* hd= is for hd.c   */
-                return 0;                               /* driver and not us */
-
-        if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2))
-                return 0;
-
-        printk(KERN_INFO "ide_setup: %s", s);
-        init_ide_data ();
-
-#ifdef CONFIG_BLK_DEV_IDEDOUBLER
-        if (!strcmp(s, "ide=doubler")) {
-                extern int ide_doubler;
-
-                printk(" : Enabled support for IDE doublers\n");
-                ide_doubler = 1;
-                goto obsolete_option;
-        }
-#endif /* CONFIG_BLK_DEV_IDEDOUBLER */
-
-        if (!strcmp(s, "ide=nodma")) {
-                printk(" : Prevented DMA\n");
-                noautodma = 1;
-                goto obsolete_option;
-        }
-
-#ifdef CONFIG_BLK_DEV_IDEACPI
-        if (!strcmp(s, "ide=noacpi")) {
-                //printk(" : Disable IDE ACPI support.\n");
-                ide_noacpi = 1;
-                goto obsolete_option;
-        }
-        if (!strcmp(s, "ide=acpigtf")) {
-                //printk(" : Enable IDE ACPI _GTF support.\n");
-                ide_acpigtf = 1;
-                goto obsolete_option;
-        }
-        if (!strcmp(s, "ide=acpionboot")) {
-                //printk(" : Call IDE ACPI methods on boot.\n");
-                ide_acpionboot = 1;
-                goto obsolete_option;
-        }
-#endif /* CONFIG_BLK_DEV_IDEACPI */
-
-        /*
-         * Look for drive options:  "hdx="
-         */
-        if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) {
-                const char *hd_words[] = {
-                        "none", "noprobe", "nowerr", "cdrom", "nodma",
-                        "-6", "-7", "-8", "-9", "-10",
-                        "noflush", "remap", "remap63", "scsi", NULL };
-                unit = s[2] - 'a';
-                hw   = unit / MAX_DRIVES;
-                unit = unit % MAX_DRIVES;
-                hwif = &ide_hwifs[hw];
-                drive = &hwif->drives[unit];
-                if (strncmp(s + 4, "ide-", 4) == 0) {
-                        strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req));
-                        goto obsolete_option;
-                }
-                switch (match_parm(&s[3], hd_words, vals, 3)) {
-                        case -1: /* "none" */
-                        case -2: /* "noprobe" */
-                                drive->noprobe = 1;
-                                goto obsolete_option;
-                        case -3: /* "nowerr" */
-                                drive->bad_wstat = BAD_R_STAT;
-                                goto obsolete_option;
-                        case -4: /* "cdrom" */
-                                drive->present = 1;
-                                drive->media = ide_cdrom;
-                                /* an ATAPI device ignores DRDY */
-                                drive->ready_stat = 0;
-                                goto obsolete_option;
-                        case -5: /* nodma */
-                                drive->nodma = 1;
-                                goto obsolete_option;
-                        case -11: /* noflush */
-                                drive->noflush = 1;
-                                goto obsolete_option;
-                        case -12: /* "remap" */
-                                drive->remap_0_to_1 = 1;
-                                goto obsolete_option;
-                        case -13: /* "remap63" */
-                                drive->sect0 = 63;
-                                goto obsolete_option;
-                        case -14: /* "scsi" */
-                                drive->scsi = 1;
-                                goto obsolete_option;
-                        case 3: /* cyl,head,sect */
-                                drive->media    = ide_disk;
-                                drive->ready_stat = READY_STAT;
-                                drive->cyl      = drive->bios_cyl  = vals[0];
-                                drive->head     = drive->bios_head = vals[1];
-                                drive->sect     = drive->bios_sect = vals[2];
-                                drive->present  = 1;
-                                drive->forced_geom = 1;
-                                goto obsolete_option;
-                        default:
-                                goto bad_option;
-                }
-        }
-
-        if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e')
-                goto bad_option;
-        /*
-         * Look for bus speed option:  "idebus="
-         */
-        if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') {
-                if (match_parm(&s[6], NULL, vals, 1) != 1)
-                        goto bad_option;
-                if (vals[0] >= 20 && vals[0] <= 66) {
-                        idebus_parameter = vals[0];
-                } else
-                        printk(" -- BAD BUS SPEED! Expected value from 20 to 66");
-                goto obsolete_option;
-        }
-
-bad_option:
-        printk(" -- BAD OPTION\n");
-        return 1;
-obsolete_option:
-        printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n");
-        return 1;
-}
-
-EXPORT_SYMBOL(ide_lock);
-
 static int ide_bus_match(struct device *dev, struct device_driver *drv)
 {
         return 1;
@@ -1281,11 +1008,6 @@ static int __init ide_init(void)
         int ret;
 
         printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n");
-        system_bus_speed = ide_system_bus_speed();
-
-        printk(KERN_INFO "ide: Assuming %dMHz system bus speed "
-                         "for PIO modes%s\n", system_bus_speed,
-                        idebus_parameter ? "" : "; override with idebus=xx");
 
         ret = bus_register(&ide_bus_type);
         if (ret < 0) {
@@ -1311,32 +1033,7 @@ out_port_class:
         return ret;
 }
 
-#ifdef MODULE
-static char *options = NULL;
-module_param(options, charp, 0);
-MODULE_LICENSE("GPL");
-
-static void __init parse_options (char *line)
-{
-        char *next = line;
-
-        if (line == NULL || !*line)
-                return;
-        while ((line = next) != NULL) {
-                if ((next = strchr(line,' ')) != NULL)
-                        *next++ = 0;
-                if (!ide_setup(line))
-                        printk (KERN_INFO "Unknown option '%s'\n", line);
-        }
-}
-
-int __init init_module (void)
-{
-        parse_options(options);
-        return ide_init();
-}
-
-void __exit cleanup_module (void)
+static void __exit ide_exit(void)
 {
         proc_ide_destroy();
 
@@ -1345,10 +1042,7 @@ void __exit cleanup_module (void)
         bus_unregister(&ide_bus_type);
 }
 
-#else /* !MODULE */
-
-__setup("", ide_setup);
-
 module_init(ide_init);
+module_exit(ide_exit);
 
-#endif /* MODULE */
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c
index 90c65cf9744..052125fafcf 100644
--- a/drivers/ide/legacy/ali14xx.c
+++ b/drivers/ide/legacy/ali14xx.c
@@ -116,7 +116,7 @@ static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
         int time1, time2;
         u8 param1, param2, param3, param4;
         unsigned long flags;
-        int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock();
+        int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50;
 
         /* calculate timing, according to PIO mode */
         time1 = ide_pio_cycle_time(drive, pio);
diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c
index fed7d812761..b78941680c3 100644
--- a/drivers/ide/legacy/gayle.c
+++ b/drivers/ide/legacy/gayle.c
@@ -64,9 +64,7 @@
 #define GAYLE_HAS_CONTROL_REG   (!ide_doubler)
 #define GAYLE_IDEREG_SIZE       (ide_doubler ? 0x1000 : 0x2000)
 
-int ide_doubler = 0;    /* support IDE doublers? */
-EXPORT_SYMBOL_GPL(ide_doubler);
-
+static int ide_doubler;
 module_param_named(doubler, ide_doubler, bool, 0);
 MODULE_PARM_DESC(doubler, "enable support for IDE doublers");
 #endif /* CONFIG_BLK_DEV_IDEDOUBLER */
diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c
index 4fe516df9f7..dd6dfb32e85 100644
--- a/drivers/ide/legacy/ht6560b.c
+++ b/drivers/ide/legacy/ht6560b.c
@@ -212,7 +212,7 @@ static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio)
 {
         int active_time, recovery_time;
         int active_cycles, recovery_cycles;
-        int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock();
+        int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50;
 
         if (pio) {
                 unsigned int cycle_time;
diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c
index 6424af15432..51dba82f881 100644
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -110,7 +110,7 @@ static void qd65xx_select(ide_drive_t *drive)
 
 static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time)
 {
-        int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock();
+        int clk = ide_vlb_clk ? ide_vlb_clk : 50;
         u8 act_cyc, rec_cyc;
 
         if (clk <= 33) {
@@ -132,7 +132,7 @@ static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery
 
 static u8 qd6580_compute_timing (int active_time, int recovery_time)
 {
-        int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock();
+        int clk = ide_vlb_clk ? ide_vlb_clk : 50;
         u8 act_cyc, rec_cyc;
 
         act_cyc = 17 - IDE_IN(active_time   * clk / 1000 + 1, 2, 17);
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index 7f46c224b7c..ae7a4329a58 100644
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -140,7 +140,7 @@ static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
 
 static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
 {
-        int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock();
+        int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
 
         if (bus_speed <= 33)
                 pci_set_drvdata(dev, (void *) aec6xxx_33_base);
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index f2129d5e07f..f2de00adf14 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -72,7 +72,7 @@ static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio)
         int s_time, a_time, c_time;
         u8 s_clc, a_clc, r_clc;
         unsigned long flags;
-        int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock();
+        int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
         int port = hwif->channel ? 0x5c : 0x58;
         int portFIFO = hwif->channel ? 0x55 : 0x54;
         u8 cd_dma_fifo = 0;
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index efcf54338be..ad222206a42 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -53,20 +53,20 @@ static void amd_set_speed(struct pci_dev *dev, u8 dn, u8 udma_mask,
         u8 t = 0, offset = amd_offset(dev);
 
         pci_read_config_byte(dev, AMD_ADDRESS_SETUP + offset, &t);
-        t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
+        t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
         pci_write_config_byte(dev, AMD_ADDRESS_SETUP + offset, t);
 
         pci_write_config_byte(dev, AMD_8BIT_TIMING + offset + (1 - (dn >> 1)),
-                ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1));
+                ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1));
 
         pci_write_config_byte(dev, AMD_DRIVE_TIMING + offset + (3 - dn),
-                ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1));
+                ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1));
 
         switch (udma_mask) {
-        case ATA_UDMA2: t = timing->udma ? (0xc0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break;
-        case ATA_UDMA4: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 2, 10)]) : 0x03; break;
-        case ATA_UDMA5: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 1, 10)]) : 0x03; break;
-        case ATA_UDMA6: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 1, 15)]) : 0x03; break;
+        case ATA_UDMA2: t = timing->udma ? (0xc0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break;
+        case ATA_UDMA4: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 2, 10)]) : 0x03; break;
+        case ATA_UDMA5: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 10)]) : 0x03; break;
+        case ATA_UDMA6: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 15)]) : 0x03; break;
         default: return;
         }
 
@@ -179,7 +179,7 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev,
  * Determine the system bus clock.
  */
 
-        amd_clock = (ide_pci_clk ? ide_pci_clk : system_bus_clock()) * 1000;
+        amd_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000;
 
         switch (amd_clock) {
                 case 33000: amd_clock = 33333; break;
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
index b38a1980dcd..cd1ba14984a 100644
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -525,12 +525,10 @@ static void cmd640_set_mode(ide_drive_t *drive, unsigned int index,
         u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count;
         int bus_speed;
 
-        if (cmd640_vlb && ide_vlb_clk)
-                bus_speed = ide_vlb_clk;
-        else if (!cmd640_vlb && ide_pci_clk)
-                bus_speed = ide_pci_clk;
+        if (cmd640_vlb)
+                bus_speed = ide_vlb_clk ? ide_vlb_clk : 50;
         else
-                bus_speed = system_bus_clock();
+                bus_speed = ide_pci_clk ? ide_pci_clk : 33;
 
         if (pio_mode > 5)
                 pio_mode = 5;
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 08674711d08..ca4774aa27e 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -69,7 +69,7 @@ static u8 quantize_timing(int timing, int quant)
 static void program_cycle_times (ide_drive_t *drive, int cycle_time, int active_time)
 {
         struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
-        int clock_time = 1000 / (ide_pci_clk ? ide_pci_clk : system_bus_clock());
+        int clock_time = 1000 / (ide_pci_clk ? ide_pci_clk : 33);
         u8  cycle_count, active_count, recovery_count, drwtim;
         static const u8 recovery_values[] =
                 {15, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0};
@@ -128,7 +128,7 @@ static void cmd64x_tune_pio(ide_drive_t *drive, const u8 pio)
                             ide_pio_timings[pio].active_time);
 
         setup_count = quantize_timing(ide_pio_timings[pio].setup_time,
-                        1000 / (ide_pci_clk ? ide_pci_clk : system_bus_clock()));
+                        1000 / (ide_pci_clk ? ide_pci_clk : 33));
 
         /*
          * The primary channel has individual address setup timing registers
diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c
index 77cc22c2ad4..8c534afcb6c 100644
--- a/drivers/ide/pci/cy82c693.c
+++ b/drivers/ide/pci/cy82c693.c
@@ -134,7 +134,7 @@ static int calc_clk(int time, int bus_speed)
 static void compute_clocks(u8 pio, pio_clocks_t *p_pclk)
 {
         int clk1, clk2;
-        int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock();
+        int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
 
         /* we don't check against CY82C693's min and max speed,
          * so you can play with the idebus=xx parameter
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index c929dadaaaf..397c6cbe953 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -759,8 +759,7 @@ static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
                                 enable_irq (hwif->irq);
                 }
         } else
-                outb(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
-                     hwif->io_ports.ctl_addr);
+                outb(ATA_DEVCTL_OBS | (mask ? 2 : 0), hwif->io_ports.ctl_addr);
 }
 
 /*
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
index a7a41bb8277..45ba71a7182 100644
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -76,7 +76,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
         }
 
         /* be sure we're looking at the low order bits */
-        outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+        outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
         if (task->tf_flags & IDE_TFLAG_IN_NSECT)
                 tf->nsect  = inb(io_ports->nsect_addr);
@@ -90,7 +90,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
                 tf->device = superio_ide_inb(io_ports->device_addr);
 
         if (task->tf_flags & IDE_TFLAG_LBA48) {
-                outb(drive->ctl | 0x80, io_ports->ctl_addr);
+                outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
                 if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
                         tf->hob_feature = inb(io_ports->feature_addr);
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 910fb00deb7..1584ebb6a18 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -148,11 +148,8 @@ static void scc_ide_outb(u8 addr, unsigned long port)
         out_be32((void*)port, addr);
 }
 
-static void
-scc_ide_outbsync(ide_drive_t * drive, u8 addr, unsigned long port)
+static void scc_ide_outbsync(ide_hwif_t *hwif, u8 addr, unsigned long port)
 {
-        ide_hwif_t *hwif = HWIF(drive);
-
         out_be32((void*)port, addr);
         eieio();
         in_be32((void*)(hwif->dma_base + 0x01c));
@@ -662,8 +659,6 @@ static void scc_tf_load(ide_drive_t *drive, ide_task_t *task)
         if (task->tf_flags & IDE_TFLAG_FLAGGED)
                 HIHI = 0xFF;
 
-        ide_set_irq(drive, 1);
-
         if (task->tf_flags & IDE_TFLAG_OUT_DATA)
                 out_be32((void *)io_ports->data_addr,
                          (tf->hob_data << 8) | tf->data);
@@ -708,7 +703,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task)
         }
 
         /* be sure we're looking at the low order bits */
-        scc_ide_outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+        scc_ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
         if (task->tf_flags & IDE_TFLAG_IN_NSECT)
                 tf->nsect  = scc_ide_inb(io_ports->nsect_addr);
@@ -722,7 +717,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task)
                 tf->device = scc_ide_inb(io_ports->device_addr);
 
         if (task->tf_flags & IDE_TFLAG_LBA48) {
-                scc_ide_outb(drive->ctl | 0x80, io_ports->ctl_addr);
+                scc_ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
                 if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
                         tf->hob_feature = scc_ide_inb(io_ports->feature_addr);
@@ -795,7 +790,6 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif)
 
         hwif->dma_base = dma_base;
         hwif->config_data = ports->ctl;
-        hwif->mmio = 1;
 }
 
 /**
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index 16a0bce17d6..24513e3dcd6 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -111,7 +111,7 @@ sgiioc4_init_hwif_ports(hw_regs_t * hw, unsigned long data_port,
 static void
 sgiioc4_maskproc(ide_drive_t * drive, int mask)
 {
-        writeb(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
+        writeb(ATA_DEVCTL_OBS | (mask ? 2 : 0),
                (void __iomem *)drive->hwif->io_ports.ctl_addr);
 }
 
@@ -369,8 +369,7 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d)
         hwif->sg_max_nents = IOC4_PRD_ENTRIES;
 
         pad = pci_alloc_consistent(dev, IOC4_IDE_CACHELINE_SIZE,
-                                   (dma_addr_t *) &(hwif->dma_status));
-
+                                   (dma_addr_t *)&hwif->extra_base);
         if (pad) {
                 ide_set_hwifdata(hwif, pad);
                 return 0;
@@ -439,7 +438,7 @@ sgiioc4_configure_for_dma(int dma_direction, ide_drive_t * drive)
 
         /* Address of the Ending DMA */
         memset(ide_get_hwifdata(hwif), 0, IOC4_IDE_CACHELINE_SIZE);
-        ending_dma_addr = cpu_to_le32(hwif->dma_status);
+        ending_dma_addr = cpu_to_le32(hwif->extra_base);
         writel(ending_dma_addr, (void __iomem *)(dma_base + IOC4_DMA_END_ADDR * 4));
 
         writel(dma_direction, (void __iomem *)ioc4_dma_addr);
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 0006b9e5856..b75e9bb390a 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -94,7 +94,7 @@ static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
         unsigned long base = (unsigned long)hwif->hwif_data;
 
         base += 0xA0 + r;
-        if (hwif->mmio)
+        if (hwif->host_flags & IDE_HFLAG_MMIO)
                 base += hwif->channel << 6;
         else
                 base += hwif->channel << 4;
@@ -117,7 +117,7 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
         unsigned long base      = (unsigned long)hwif->hwif_data;
 
         base += 0xA0 + r;
-        if (hwif->mmio)
+        if (hwif->host_flags & IDE_HFLAG_MMIO)
                 base += hwif->channel << 6;
         else
                 base += hwif->channel << 4;
@@ -190,7 +190,9 @@ static u8 sil_pata_udma_filter(ide_drive_t *drive)
         unsigned long base      = (unsigned long)hwif->hwif_data;
         u8 scsc, mask           = 0;
 
-        scsc = sil_ioread8(dev, base + (hwif->mmio ? 0x4A : 0x8A));
+        base += (hwif->host_flags & IDE_HFLAG_MMIO) ? 0x4A : 0x8A;
+
+        scsc = sil_ioread8(dev, base);
 
         switch (scsc & 0x30) {
         case 0x10:      /* 133 */
@@ -238,8 +240,9 @@ static void sil_set_pio_mode(ide_drive_t *drive, u8 pio)
         unsigned long tfaddr    = siimage_selreg(hwif,  0x02);
         unsigned long base      = (unsigned long)hwif->hwif_data;
         u8 tf_pio               = pio;
-        u8 addr_mask            = hwif->channel ? (hwif->mmio ? 0xF4 : 0x84)
-                                                : (hwif->mmio ? 0xB4 : 0x80);
+        u8 mmio                 = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+        u8 addr_mask            = hwif->channel ? (mmio ? 0xF4 : 0x84)
+                                                : (mmio ? 0xB4 : 0x80);
         u8 mode                 = 0;
         u8 unit                 = drive->select.b.unit;
 
@@ -290,13 +293,13 @@ static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed)
         u16 ultra = 0, multi    = 0;
         u8 mode = 0, unit       = drive->select.b.unit;
         unsigned long base      = (unsigned long)hwif->hwif_data;
-        u8 scsc = 0, addr_mask  = hwif->channel ?
-                                        (hwif->mmio ? 0xF4 : 0x84) :
-                                        (hwif->mmio ? 0xB4 : 0x80);
+        u8 mmio                 = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
+        u8 scsc = 0, addr_mask  = hwif->channel ? (mmio ? 0xF4 : 0x84)
+                                                : (mmio ? 0xB4 : 0x80);
         unsigned long ma        = siimage_seldev(drive, 0x08);
         unsigned long ua        = siimage_seldev(drive, 0x0C);
 
-        scsc  = sil_ioread8 (dev, base + (hwif->mmio ? 0x4A : 0x8A));
+        scsc  = sil_ioread8 (dev, base + (mmio ? 0x4A : 0x8A));
         mode  = sil_ioread8 (dev, base + addr_mask);
         multi = sil_ioread16(dev, ma);
         ultra = sil_ioread16(dev, ua);
@@ -391,7 +394,7 @@ static int siimage_mmio_dma_test_irq(ide_drive_t *drive)
 
 static int siimage_dma_test_irq(ide_drive_t *drive)
 {
-        if (drive->hwif->mmio)
+        if (drive->hwif->host_flags & IDE_HFLAG_MMIO)
                 return siimage_mmio_dma_test_irq(drive);
         else
                 return siimage_io_dma_test_irq(drive);
@@ -640,8 +643,6 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
         hwif->irq = dev->irq;
 
         hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00);
-
-        hwif->mmio = 1;
 }
 
 static int is_dev_seagate_sata(ide_drive_t *drive)
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index 566e0ecb8db..3ed9728abd2 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -120,21 +120,21 @@ static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing)
 
         if (~vdev->via_config->flags & VIA_BAD_AST) {
                 pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t);
-                t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
+                t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
                 pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t);
         }
 
         pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)),
-                ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1));
+                ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1));
 
         pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn),
-                ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1));
+                ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1));
 
         switch (vdev->via_config->udma_mask) {
-        case ATA_UDMA2: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break;
-        case ATA_UDMA4: t = timing->udma ? (0xe8 | (FIT(timing->udma, 2, 9) - 2)) : 0x0f; break;
-        case ATA_UDMA5: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
-        case ATA_UDMA6: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
+        case ATA_UDMA2: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break;
+        case ATA_UDMA4: t = timing->udma ? (0xe8 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x0f; break;
+        case ATA_UDMA5: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break;
+        case ATA_UDMA6: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break;
         default: return;
         }
 
@@ -340,7 +340,7 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const
          * Determine system bus clock.
          */
 
-        via_clock = (ide_pci_clk ? ide_pci_clk : system_bus_clock()) * 1000;
+        via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000;
 
         switch (via_clock) {
                 case 33000: via_clock = 33333; break;
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index ba2d5872796..dcb2c466bb9 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -480,13 +480,13 @@ pmac_ide_do_update_timings(ide_drive_t *drive)
                 pmac_ide_selectproc(drive);
 }
 
-static void
-pmac_outbsync(ide_drive_t *drive, u8 value, unsigned long port)
+static void pmac_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port)
 {
         u32 tmp;
         
         writeb(value, (void __iomem *) port);
-        tmp = readl(PMAC_IDE_REG(IDE_TIMING_CONFIG));
+        tmp = readl((void __iomem *)(hwif->io_ports.data_addr
+                                     + IDE_TIMING_CONFIG));
 }
 
 /*
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 5171601fb25..abcfb1739d4 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -87,7 +87,7 @@ unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d)
         unsigned long dma_base = 0;
         u8 dma_stat = 0;
 
-        if (hwif->mmio)
+        if (hwif->host_flags & IDE_HFLAG_MMIO)
                 return hwif->dma_base;
 
         if (hwif->mate && hwif->mate->dma_base) {
@@ -374,7 +374,7 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
                 if (base == 0 || ide_pci_set_master(dev, d->name) < 0)
                         return -1;
 
-                if (hwif->mmio)
+                if (hwif->host_flags & IDE_HFLAG_MMIO)
                         printk(KERN_INFO "    %s: MMIO-DMA\n", hwif->name);
                 else
                         printk(KERN_INFO "    %s: BM-DMA at 0x%04lx-0x%04lx\n",
diff --git a/drivers/ieee1394/csr1212.c b/drivers/ieee1394/csr1212.c
index e8122def164..9f95337139e 100644
--- a/drivers/ieee1394/csr1212.c
+++ b/drivers/ieee1394/csr1212.c
@@ -1049,6 +1049,24 @@ int csr1212_read(struct csr1212_csr *csr, u32 offset, void *buffer, u32 len)
         return -ENOENT;
 }
 
+/*
+ * Apparently there are many different wrong implementations of the CRC
+ * algorithm.  We don't fail, we just warn... approximately once per GUID.
+ */
+static void
+csr1212_check_crc(const u32 *buffer, size_t length, u16 crc, __be32 *guid)
+{
+        static u64 last_bad_eui64;
+        u64 eui64 = ((u64)be32_to_cpu(guid[0]) << 32) | be32_to_cpu(guid[1]);
+
+        if (csr1212_crc16(buffer, length) == crc ||
+            csr1212_msft_crc16(buffer, length) == crc ||
+            eui64 == last_bad_eui64)
+                return;
+
+        printk(KERN_DEBUG "ieee1394: config ROM CRC error\n");
+        last_bad_eui64 = eui64;
+}
 
 /* Parse a chunk of data as a Config ROM */
 
@@ -1092,11 +1110,8 @@ static int csr1212_parse_bus_info_block(struct csr1212_csr *csr)
                         return ret;
         }
 
-        /* Apparently there are many different wrong implementations of the CRC
-         * algorithm.  We don't fail, we just warn. */
-        if ((csr1212_crc16(bi->data, bi->crc_length) != bi->crc) &&
-            (csr1212_msft_crc16(bi->data, bi->crc_length) != bi->crc))
-                printk(KERN_DEBUG "IEEE 1394 device has ROM CRC error\n");
+        csr1212_check_crc(bi->data, bi->crc_length, bi->crc,
+                          &csr->bus_info_data[3]);
 
         cr = CSR1212_MALLOC(sizeof(*cr));
         if (!cr)
@@ -1205,11 +1220,8 @@ int csr1212_parse_keyval(struct csr1212_keyval *kv,
                 &cache->data[bytes_to_quads(kv->offset - cache->offset)];
         kvi_len = be16_to_cpu(kvi->length);
 
-        /* Apparently there are many different wrong implementations of the CRC
-         * algorithm.  We don't fail, we just warn. */
-        if ((csr1212_crc16(kvi->data, kvi_len) != kvi->crc) &&
-            (csr1212_msft_crc16(kvi->data, kvi_len) != kvi->crc))
-                printk(KERN_DEBUG "IEEE 1394 device has ROM CRC error\n");
+        /* GUID is wrong in here in case of extended ROM.  We don't care. */
+        csr1212_check_crc(kvi->data, kvi_len, kvi->crc, &cache->data[3]);
 
         switch (kv->key.type) {
         case CSR1212_KV_TYPE_DIRECTORY:
diff --git a/drivers/ieee1394/dma.c b/drivers/ieee1394/dma.c
index 73685e7dc7e..1aba8c13fe8 100644
--- a/drivers/ieee1394/dma.c
+++ b/drivers/ieee1394/dma.c
@@ -274,7 +274,7 @@ int dma_region_mmap(struct dma_region *dma, struct file *file,
         vma->vm_ops = &dma_region_vm_ops;
         vma->vm_private_data = dma;
         vma->vm_file = file;
-        vma->vm_flags |= VM_RESERVED;
+        vma->vm_flags |= VM_RESERVED | VM_ALWAYSDUMP;
 
         return 0;
 }
diff --git a/drivers/ieee1394/highlevel.c b/drivers/ieee1394/highlevel.c
index fa2bfec0fca..918ffc4fc8a 100644
--- a/drivers/ieee1394/highlevel.c
+++ b/drivers/ieee1394/highlevel.c
@@ -228,10 +228,8 @@ void hpsb_register_highlevel(struct hpsb_highlevel *hl)
 {
         unsigned long flags;
 
+        hpsb_init_highlevel(hl);
         INIT_LIST_HEAD(&hl->addr_list);
-        INIT_LIST_HEAD(&hl->host_info_list);
-
-        rwlock_init(&hl->host_info_lock);
 
         down_write(&hl_drivers_sem);
         list_add_tail(&hl->hl_list, &hl_drivers);
diff --git a/drivers/ieee1394/highlevel.h b/drivers/ieee1394/highlevel.h
index eb9fe321e09..bc5d0854c17 100644
--- a/drivers/ieee1394/highlevel.h
+++ b/drivers/ieee1394/highlevel.h
@@ -2,7 +2,7 @@
 #define IEEE1394_HIGHLEVEL_H
 
 #include <linux/list.h>
-#include <linux/spinlock_types.h>
+#include <linux/spinlock.h>
 #include <linux/types.h>
 
 struct module;
@@ -103,6 +103,17 @@ int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store,
 void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
                            void *data, size_t length);
 
+/**
+ * hpsb_init_highlevel - initialize a struct hpsb_highlevel
+ *
+ * This is only necessary if hpsb_get_hostinfo_bykey can be called
+ * before hpsb_register_highlevel.
+ */
+static inline void hpsb_init_highlevel(struct hpsb_highlevel *hl)
+{
+        rwlock_init(&hl->host_info_lock);
+        INIT_LIST_HEAD(&hl->host_info_list);
+}
 void hpsb_register_highlevel(struct hpsb_highlevel *hl);
 void hpsb_unregister_highlevel(struct hpsb_highlevel *hl);
 
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index ec2a0adbedb..96f2847b040 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -2549,8 +2549,8 @@ static int raw1394_mmap(struct file *file, struct vm_area_struct *vma)
 }
 
 /* ioctl is only used for rawiso operations */
-static int raw1394_ioctl(struct inode *inode, struct file *file,
-                         unsigned int cmd, unsigned long arg)
+static long do_raw1394_ioctl(struct file *file, unsigned int cmd,
+                                                        unsigned long arg)
 {
         struct file_info *fi = file->private_data;
         void __user *argp = (void __user *)arg;
@@ -2656,6 +2656,16 @@ static int raw1394_ioctl(struct inode *inode, struct file *file,
         return -EINVAL;
 }
 
+static long raw1394_ioctl(struct file *file, unsigned int cmd,
+                                                        unsigned long arg)
+{
+        long ret;
+        lock_kernel();
+        ret = do_raw1394_ioctl(file, cmd, arg);
+        unlock_kernel();
+        return ret;
+}
+
 #ifdef CONFIG_COMPAT
 struct raw1394_iso_packets32 {
         __u32 n_packets;
@@ -2690,7 +2700,7 @@ static long raw1394_iso_xmit_recv_packets32(struct file *file, unsigned int cmd,
             !copy_from_user(&infos32, &arg->infos, sizeof infos32)) {
                 infos = compat_ptr(infos32);
                 if (!copy_to_user(&dst->infos, &infos, sizeof infos))
-                        err = raw1394_ioctl(NULL, file, cmd, (unsigned long)dst);
+                        err = do_raw1394_ioctl(file, cmd, (unsigned long)dst);
         }
         return err;
 }
@@ -2731,7 +2741,7 @@ static long raw1394_compat_ioctl(struct file *file,
         case RAW1394_IOC_ISO_GET_STATUS:
         case RAW1394_IOC_ISO_SHUTDOWN:
         case RAW1394_IOC_ISO_QUEUE_ACTIVITY:
-                err = raw1394_ioctl(NULL, file, cmd, arg);
+                err = do_raw1394_ioctl(file, cmd, arg);
                 break;
         /* These request have different format. */
         case RAW1394_IOC_ISO_RECV_PACKETS32:
@@ -2984,7 +2994,7 @@ static const struct file_operations raw1394_fops = {
         .read = raw1394_read,
         .write = raw1394_write,
         .mmap = raw1394_mmap,
-        .ioctl = raw1394_ioctl,
+        .unlocked_ioctl = raw1394_ioctl,
 #ifdef CONFIG_COMPAT
         .compat_ioctl = raw1394_compat_ioctl,
 #endif
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index a5ceff287a2..9cbf3154d24 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -186,6 +186,11 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
  * - delay inquiry
  *   Wait extra SBP2_INQUIRY_DELAY seconds after login before SCSI inquiry.
  *
+ * - power condition
+ *   Set the power condition field in the START STOP UNIT commands sent by
+ *   sd_mod on suspend, resume, and shutdown (if manage_start_stop is on).
+ *   Some disks need this to spin down or to resume properly.
+ *
  * - override internal blacklist
  *   Instead of adding to the built-in blacklist, use only the workarounds
  *   specified in the module load parameter.
@@ -199,6 +204,8 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
         ", skip mode page 8 = "   __stringify(SBP2_WORKAROUND_MODE_SENSE_8)
         ", fix capacity = "       __stringify(SBP2_WORKAROUND_FIX_CAPACITY)
         ", delay inquiry = "      __stringify(SBP2_WORKAROUND_DELAY_INQUIRY)
+        ", set power condition in start stop unit = "
+                                  __stringify(SBP2_WORKAROUND_POWER_CONDITION)
         ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
         ", or a combination)");
 
@@ -359,18 +366,25 @@ static const struct {
                 .firmware_revision      = 0x002800,
                 .model_id               = 0x001010,
                 .workarounds            = SBP2_WORKAROUND_INQUIRY_36 |
-                                          SBP2_WORKAROUND_MODE_SENSE_8,
+                                          SBP2_WORKAROUND_MODE_SENSE_8 |
+                                          SBP2_WORKAROUND_POWER_CONDITION,
         },
         /* DViCO Momobay FX-3A with TSB42AA9A bridge */ {
                 .firmware_revision      = 0x002800,
                 .model_id               = 0x000000,
-                .workarounds            = SBP2_WORKAROUND_DELAY_INQUIRY,
+                .workarounds            = SBP2_WORKAROUND_DELAY_INQUIRY |
+                                          SBP2_WORKAROUND_POWER_CONDITION,
         },
         /* Initio bridges, actually only needed for some older ones */ {
                 .firmware_revision      = 0x000200,
                 .model_id               = SBP2_ROM_VALUE_WILDCARD,
                 .workarounds            = SBP2_WORKAROUND_INQUIRY_36,
         },
+        /* PL-3507 bridge with Prolific firmware */ {
+                .firmware_revision      = 0x012800,
+                .model_id               = SBP2_ROM_VALUE_WILDCARD,
+                .workarounds            = SBP2_WORKAROUND_POWER_CONDITION,
+        },
         /* Symbios bridge */ {
                 .firmware_revision      = 0xa0b800,
                 .model_id               = SBP2_ROM_VALUE_WILDCARD,
@@ -1995,6 +2009,8 @@ static int sbp2scsi_slave_configure(struct scsi_device *sdev)
 
         sdev->use_10_for_rw = 1;
 
+        if (sbp2_exclusive_login)
+                sdev->manage_start_stop = 1;
         if (sdev->type == TYPE_ROM)
                 sdev->use_10_for_ms = 1;
         if (sdev->type == TYPE_DISK &&
@@ -2002,6 +2018,8 @@ static int sbp2scsi_slave_configure(struct scsi_device *sdev)
                 sdev->skip_ms_page_8 = 1;
         if (lu->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
                 sdev->fix_capacity = 1;
+        if (lu->workarounds & SBP2_WORKAROUND_POWER_CONDITION)
+                sdev->start_stop_pwr_cond = 1;
         if (lu->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
                 blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512);
         return 0;
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index 80d8e097b06..875428bc8d2 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -345,6 +345,7 @@ enum sbp2lu_state_types {
 #define SBP2_WORKAROUND_FIX_CAPACITY    0x8
 #define SBP2_WORKAROUND_DELAY_INQUIRY   0x10
 #define SBP2_INQUIRY_DELAY              12
+#define SBP2_WORKAROUND_POWER_CONDITION 0x20
 #define SBP2_WORKAROUND_OVERRIDE        0x100
 
 #endif /* SBP2_H */
diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c
index e24772d336e..069b9f6bf16 100644
--- a/drivers/ieee1394/video1394.c
+++ b/drivers/ieee1394/video1394.c
@@ -1503,6 +1503,8 @@ static int __init video1394_init_module (void)
 {
         int ret;
 
+        hpsb_init_highlevel(&video1394_highlevel);
+
         cdev_init(&video1394_cdev, &video1394_fops);
         video1394_cdev.owner = THIS_MODULE;
         ret = cdev_add(&video1394_cdev, IEEE1394_VIDEO1394_DEV, 16);
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index 781ea595037..09a2bec7fd3 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -4,28 +4,33 @@
  * Copyright (c) 1999-2005, Mellanox Technologies, Inc. All rights reserved.
  * Copyright (c) 2005 Intel Corporation.  All rights reserved.
  *
- * This Software is licensed under one of the following licenses:
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
  *
- * 1) under the terms of the "Common Public License 1.0" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/cpl.php.
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
  *
- * 2) under the terms of the "The BSD License" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/bsd-license.php.
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
  *
- * 3) under the terms of the "GNU General Public License (GPL) Version 2" a
- *    copy of which is available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/gpl-license.php.
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
- * Licensee has the right to choose one of the above licenses.
- *
- * Redistributions of source code must retain the above copyright
- * notice and one of the license notices.
- *
- * Redistributions in binary form must reproduce both the above copyright
- * notice, one of the license notices in the documentation
- * and/or other materials provided with the distribution.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #include <linux/mutex.h>
@@ -100,6 +105,7 @@ int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev,
         memcpy(dev_addr->broadcast, dev->broadcast, MAX_ADDR_LEN);
         if (dst_dev_addr)
                 memcpy(dev_addr->dst_dev_addr, dst_dev_addr, MAX_ADDR_LEN);
+        dev_addr->src_dev = dev;
         return 0;
 }
 EXPORT_SYMBOL(rdma_copy_addr);
diff --git a/drivers/infiniband/core/agent.h b/drivers/infiniband/core/agent.h
index fb9ed1489f9..6669287009c 100644
--- a/drivers/infiniband/core/agent.h
+++ b/drivers/infiniband/core/agent.h
@@ -32,8 +32,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: agent.h 1389 2004-12-27 22:56:47Z roland $
  */
 
 #ifndef __AGENT_H_
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index e85f7013de5..68883565b72 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -31,8 +31,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: cache.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/module.h>
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index a47fe64e5c3..55738eead3b 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -31,8 +31,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: cm.c 4311 2005-12-05 18:42:01Z sean.hefty $
  */
 
 #include <linux/completion.h>
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 671f1373805..ae11d5cc74d 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -4,29 +4,33 @@
  * Copyright (c) 1999-2005, Mellanox Technologies, Inc. All rights reserved.
  * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
  *
- * This Software is licensed under one of the following licenses:
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
  *
- * 1) under the terms of the "Common Public License 1.0" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/cpl.php.
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
  *
- * 2) under the terms of the "The BSD License" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/bsd-license.php.
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
  *
- * 3) under the terms of the "GNU General Public License (GPL) Version 2" a
- *    copy of which is available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/gpl-license.php.
- *
- * Licensee has the right to choose one of the above licenses.
- *
- * Redistributions of source code must retain the above copyright
- * notice and one of the license notices.
- *
- * Redistributions in binary form must reproduce both the above copyright
- * notice, one of the license notices in the documentation
- * and/or other materials provided with the distribution.
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #include <linux/completion.h>
@@ -126,8 +130,7 @@ struct rdma_id_private {
 
         struct completion       comp;
         atomic_t                refcount;
-        wait_queue_head_t       wait_remove;
-        atomic_t                dev_remove;
+        struct mutex            handler_mutex;
 
         int                     backlog;
         int                     timeout_ms;
@@ -351,26 +354,15 @@ static void cma_deref_id(struct rdma_id_private *id_priv)
                 complete(&id_priv->comp);
 }
 
-static int cma_disable_remove(struct rdma_id_private *id_priv,
+static int cma_disable_callback(struct rdma_id_private *id_priv,
                               enum cma_state state)
 {
-        unsigned long flags;
-        int ret;
-
-        spin_lock_irqsave(&id_priv->lock, flags);
-        if (id_priv->state == state) {
-                atomic_inc(&id_priv->dev_remove);
-                ret = 0;
-        } else
-                ret = -EINVAL;
-        spin_unlock_irqrestore(&id_priv->lock, flags);
-        return ret;
-}
-
-static void cma_enable_remove(struct rdma_id_private *id_priv)
-{
-        if (atomic_dec_and_test(&id_priv->dev_remove))
-                wake_up(&id_priv->wait_remove);
+        mutex_lock(&id_priv->handler_mutex);
+        if (id_priv->state != state) {
+                mutex_unlock(&id_priv->handler_mutex);
+                return -EINVAL;
+        }
+        return 0;
 }
 
 static int cma_has_cm_dev(struct rdma_id_private *id_priv)
@@ -395,8 +387,7 @@ struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler event_handler,
         mutex_init(&id_priv->qp_mutex);
         init_completion(&id_priv->comp);
         atomic_set(&id_priv->refcount, 1);
-        init_waitqueue_head(&id_priv->wait_remove);
-        atomic_set(&id_priv->dev_remove, 0);
+        mutex_init(&id_priv->handler_mutex);
         INIT_LIST_HEAD(&id_priv->listen_list);
         INIT_LIST_HEAD(&id_priv->mc_list);
         get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num);
@@ -923,7 +914,7 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
         struct rdma_cm_event event;
         int ret = 0;
 
-        if (cma_disable_remove(id_priv, CMA_CONNECT))
+        if (cma_disable_callback(id_priv, CMA_CONNECT))
                 return 0;
 
         memset(&event, 0, sizeof event);
@@ -970,7 +961,7 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
                 event.param.conn.private_data_len = IB_CM_REJ_PRIVATE_DATA_SIZE;
                 break;
         default:
-                printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d",
+                printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d\n",
                        ib_event->event);
                 goto out;
         }
@@ -980,12 +971,12 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
                 /* Destroy the CM ID by returning a non-zero value. */
                 id_priv->cm_id.ib = NULL;
                 cma_exch(id_priv, CMA_DESTROYING);
-                cma_enable_remove(id_priv);
+                mutex_unlock(&id_priv->handler_mutex);
                 rdma_destroy_id(&id_priv->id);
                 return ret;
         }
 out:
-        cma_enable_remove(id_priv);
+        mutex_unlock(&id_priv->handler_mutex);
         return ret;
 }
 
@@ -998,6 +989,7 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
         union cma_ip_addr *src, *dst;
         __be16 port;
         u8 ip_ver;
+        int ret;
 
         if (cma_get_net_info(ib_event->private_data, listen_id->ps,
                              &ip_ver, &port, &src, &dst))
@@ -1022,10 +1014,11 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
         if (rt->num_paths == 2)
                 rt->path_rec[1] = *ib_event->param.req_rcvd.alternate_path;
 
-        ib_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid);
         ib_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid);
-        ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey));
-        rt->addr.dev_addr.dev_type = RDMA_NODE_IB_CA;
+        ret = rdma_translate_ip(&id->route.addr.src_addr,
+                                &id->route.addr.dev_addr);
+        if (ret)
+                goto destroy_id;
 
         id_priv = container_of(id, struct rdma_id_private, id);
         id_priv->state = CMA_CONNECT;
@@ -1095,7 +1088,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
         int offset, ret;
 
         listen_id = cm_id->context;
-        if (cma_disable_remove(listen_id, CMA_LISTEN))
+        if (cma_disable_callback(listen_id, CMA_LISTEN))
                 return -ECONNABORTED;
 
         memset(&event, 0, sizeof event);
@@ -1116,7 +1109,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
                 goto out;
         }
 
-        atomic_inc(&conn_id->dev_remove);
+        mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
         mutex_lock(&lock);
         ret = cma_acquire_dev(conn_id);
         mutex_unlock(&lock);
@@ -1138,7 +1131,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
                     !cma_is_ud_ps(conn_id->id.ps))
                         ib_send_cm_mra(cm_id, CMA_CM_MRA_SETTING, NULL, 0);
                 mutex_unlock(&lock);
-                cma_enable_remove(conn_id);
+                mutex_unlock(&conn_id->handler_mutex);
                 goto out;
         }
 
@@ -1147,11 +1140,11 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 
 release_conn_id:
         cma_exch(conn_id, CMA_DESTROYING);
-        cma_enable_remove(conn_id);
+        mutex_unlock(&conn_id->handler_mutex);
         rdma_destroy_id(&conn_id->id);
 
 out:
-        cma_enable_remove(listen_id);
+        mutex_unlock(&listen_id->handler_mutex);
         return ret;
 }
 
@@ -1217,7 +1210,7 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
         struct sockaddr_in *sin;
         int ret = 0;
 
-        if (cma_disable_remove(id_priv, CMA_CONNECT))
+        if (cma_disable_callback(id_priv, CMA_CONNECT))
                 return 0;
 
         memset(&event, 0, sizeof event);
@@ -1261,12 +1254,12 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
                 /* Destroy the CM ID by returning a non-zero value. */
                 id_priv->cm_id.iw = NULL;
                 cma_exch(id_priv, CMA_DESTROYING);
-                cma_enable_remove(id_priv);
+                mutex_unlock(&id_priv->handler_mutex);
                 rdma_destroy_id(&id_priv->id);
                 return ret;
         }
 
-        cma_enable_remove(id_priv);
+        mutex_unlock(&id_priv->handler_mutex);
         return ret;
 }
 
@@ -1282,7 +1275,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
         struct ib_device_attr attr;
 
         listen_id = cm_id->context;
-        if (cma_disable_remove(listen_id, CMA_LISTEN))
+        if (cma_disable_callback(listen_id, CMA_LISTEN))
                 return -ECONNABORTED;
 
         /* Create a new RDMA id for the new IW CM ID */
@@ -1294,19 +1287,19 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
                 goto out;
         }
         conn_id = container_of(new_cm_id, struct rdma_id_private, id);
-        atomic_inc(&conn_id->dev_remove);
+        mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
         conn_id->state = CMA_CONNECT;
 
         dev = ip_dev_find(&init_net, iw_event->local_addr.sin_addr.s_addr);
         if (!dev) {
                 ret = -EADDRNOTAVAIL;
-                cma_enable_remove(conn_id);
+                mutex_unlock(&conn_id->handler_mutex);
                 rdma_destroy_id(new_cm_id);
                 goto out;
         }
         ret = rdma_copy_addr(&conn_id->id.route.addr.dev_addr, dev, NULL);
         if (ret) {
-                cma_enable_remove(conn_id);
+                mutex_unlock(&conn_id->handler_mutex);
                 rdma_destroy_id(new_cm_id);
                 goto out;
         }
@@ -1315,7 +1308,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
         ret = cma_acquire_dev(conn_id);
         mutex_unlock(&lock);
         if (ret) {
-                cma_enable_remove(conn_id);
+                mutex_unlock(&conn_id->handler_mutex);
                 rdma_destroy_id(new_cm_id);
                 goto out;
         }
@@ -1331,7 +1324,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 
         ret = ib_query_device(conn_id->id.device, &attr);
         if (ret) {
-                cma_enable_remove(conn_id);
+                mutex_unlock(&conn_id->handler_mutex);
                 rdma_destroy_id(new_cm_id);
                 goto out;
         }
@@ -1347,14 +1340,17 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
                 /* User wants to destroy the CM ID */
                 conn_id->cm_id.iw = NULL;
                 cma_exch(conn_id, CMA_DESTROYING);
-                cma_enable_remove(conn_id);
+                mutex_unlock(&conn_id->handler_mutex);
                 rdma_destroy_id(&conn_id->id);
+                goto out;
         }
 
+        mutex_unlock(&conn_id->handler_mutex);
+
 out:
         if (dev)
                 dev_put(dev);
-        cma_enable_remove(listen_id);
+        mutex_unlock(&listen_id->handler_mutex);
         return ret;
 }
 
@@ -1446,7 +1442,7 @@ static void cma_listen_on_dev(struct rdma_id_private *id_priv,
         ret = rdma_listen(id, id_priv->backlog);
         if (ret)
                 printk(KERN_WARNING "RDMA CMA: cma_listen_on_dev, error %d, "
-                       "listening on device %s", ret, cma_dev->device->name);
+                       "listening on device %s\n", ret, cma_dev->device->name);
 }
 
 static void cma_listen_on_all(struct rdma_id_private *id_priv)
@@ -1586,7 +1582,7 @@ static void cma_work_handler(struct work_struct *_work)
         struct rdma_id_private *id_priv = work->id;
         int destroy = 0;
 
-        atomic_inc(&id_priv->dev_remove);
+        mutex_lock(&id_priv->handler_mutex);
         if (!cma_comp_exch(id_priv, work->old_state, work->new_state))
                 goto out;
 
@@ -1595,7 +1591,7 @@ static void cma_work_handler(struct work_struct *_work)
                 destroy = 1;
         }
 out:
-        cma_enable_remove(id_priv);
+        mutex_unlock(&id_priv->handler_mutex);
         cma_deref_id(id_priv);
         if (destroy)
                 rdma_destroy_id(&id_priv->id);
@@ -1758,7 +1754,7 @@ static void addr_handler(int status, struct sockaddr *src_addr,
         struct rdma_cm_event event;
 
         memset(&event, 0, sizeof event);
-        atomic_inc(&id_priv->dev_remove);
+        mutex_lock(&id_priv->handler_mutex);
 
         /*
          * Grab mutex to block rdma_destroy_id() from removing the device while
@@ -1787,13 +1783,13 @@ static void addr_handler(int status, struct sockaddr *src_addr,
 
         if (id_priv->id.event_handler(&id_priv->id, &event)) {
                 cma_exch(id_priv, CMA_DESTROYING);
-                cma_enable_remove(id_priv);
+                mutex_unlock(&id_priv->handler_mutex);
                 cma_deref_id(id_priv);
                 rdma_destroy_id(&id_priv->id);
                 return;
         }
 out:
-        cma_enable_remove(id_priv);
+        mutex_unlock(&id_priv->handler_mutex);
         cma_deref_id(id_priv);
 }
 
@@ -2120,7 +2116,7 @@ static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
         struct ib_cm_sidr_rep_event_param *rep = &ib_event->param.sidr_rep_rcvd;
         int ret = 0;
 
-        if (cma_disable_remove(id_priv, CMA_CONNECT))
+        if (cma_disable_callback(id_priv, CMA_CONNECT))
                 return 0;
 
         memset(&event, 0, sizeof event);
@@ -2151,7 +2147,7 @@ static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
                 event.status = 0;
                 break;
         default:
-                printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d",
+                printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d\n",
                        ib_event->event);
                 goto out;
         }
@@ -2161,12 +2157,12 @@ static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
                 /* Destroy the CM ID by returning a non-zero value. */
                 id_priv->cm_id.ib = NULL;
                 cma_exch(id_priv, CMA_DESTROYING);
-                cma_enable_remove(id_priv);
+                mutex_unlock(&id_priv->handler_mutex);
                 rdma_destroy_id(&id_priv->id);
                 return ret;
         }
 out:
-        cma_enable_remove(id_priv);
+        mutex_unlock(&id_priv->handler_mutex);
         return ret;
 }
 
@@ -2564,8 +2560,8 @@ static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
         int ret;
 
         id_priv = mc->id_priv;
-        if (cma_disable_remove(id_priv, CMA_ADDR_BOUND) &&
-            cma_disable_remove(id_priv, CMA_ADDR_RESOLVED))
+        if (cma_disable_callback(id_priv, CMA_ADDR_BOUND) &&
+            cma_disable_callback(id_priv, CMA_ADDR_RESOLVED))
                 return 0;
 
         mutex_lock(&id_priv->qp_mutex);
@@ -2590,12 +2586,12 @@ static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
         ret = id_priv->id.event_handler(&id_priv->id, &event);
         if (ret) {
                 cma_exch(id_priv, CMA_DESTROYING);
-                cma_enable_remove(id_priv);
+                mutex_unlock(&id_priv->handler_mutex);
                 rdma_destroy_id(&id_priv->id);
                 return 0;
         }
 
-        cma_enable_remove(id_priv);
+        mutex_unlock(&id_priv->handler_mutex);
         return 0;
 }
 
@@ -2754,6 +2750,7 @@ static int cma_remove_id_dev(struct rdma_id_private *id_priv)
 {
         struct rdma_cm_event event;
         enum cma_state state;
+        int ret = 0;
 
         /* Record that we want to remove the device */
         state = cma_exch(id_priv, CMA_DEVICE_REMOVAL);
@@ -2761,15 +2758,18 @@ static int cma_remove_id_dev(struct rdma_id_private *id_priv)
                 return 0;
 
         cma_cancel_operation(id_priv, state);
-        wait_event(id_priv->wait_remove, !atomic_read(&id_priv->dev_remove));
+        mutex_lock(&id_priv->handler_mutex);
 
         /* Check for destruction from another callback. */
         if (!cma_comp(id_priv, CMA_DEVICE_REMOVAL))
-                return 0;
+                goto out;
 
         memset(&event, 0, sizeof event);
         event.event = RDMA_CM_EVENT_DEVICE_REMOVAL;
-        return id_priv->id.event_handler(&id_priv->id, &event);
+        ret = id_priv->id.event_handler(&id_priv->id, &event);
+out:
+        mutex_unlock(&id_priv->handler_mutex);
+        return ret;
 }
 
 static void cma_process_remove(struct cma_device *cma_dev)
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h
index 7ad47a4b166..05ac36e6acd 100644
--- a/drivers/infiniband/core/core_priv.h
+++ b/drivers/infiniband/core/core_priv.h
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: core_priv.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #ifndef _CORE_PRIV_H
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 5ac5ffee05c..7913b804311 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: device.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/module.h>
diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
index 1286dc1b98b..4507043d24c 100644
--- a/drivers/infiniband/core/fmr_pool.c
+++ b/drivers/infiniband/core/fmr_pool.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: fmr_pool.c 2730 2005-06-28 16:43:03Z sean.hefty $
  */
 
 #include <linux/errno.h>
diff --git a/drivers/infiniband/core/mad_priv.h b/drivers/infiniband/core/mad_priv.h
index 8b75010016e..05ce331733b 100644
--- a/drivers/infiniband/core/mad_priv.h
+++ b/drivers/infiniband/core/mad_priv.h
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mad_priv.h 5596 2006-03-03 01:00:07Z sean.hefty $
  */
 
 #ifndef __IB_MAD_PRIV_H__
diff --git a/drivers/infiniband/core/mad_rmpp.c b/drivers/infiniband/core/mad_rmpp.c
index a5e2a310f31..d0ef7d61c03 100644
--- a/drivers/infiniband/core/mad_rmpp.c
+++ b/drivers/infiniband/core/mad_rmpp.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mad_rmpp.c 1921 2005-03-02 22:58:44Z sean.hefty $
  */
 
 #include "mad_priv.h"
diff --git a/drivers/infiniband/core/mad_rmpp.h b/drivers/infiniband/core/mad_rmpp.h
index f0616fd2249..3d336bff114 100644
--- a/drivers/infiniband/core/mad_rmpp.h
+++ b/drivers/infiniband/core/mad_rmpp.h
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mad_rmpp.h 1921 2005-02-25 22:58:44Z sean.hefty $
  */
 
 #ifndef __MAD_RMPP_H__
diff --git a/drivers/infiniband/core/packer.c b/drivers/infiniband/core/packer.c
index c972d723576..019bd4b0863 100644
--- a/drivers/infiniband/core/packer.c
+++ b/drivers/infiniband/core/packer.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: packer.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/string.h>
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index cf474ec2707..1341de793e5 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: sa_query.c 2811 2005-07-06 18:11:43Z halr $
  */
 
 #include <linux/module.h>
@@ -361,7 +359,7 @@ static void update_sm_ah(struct work_struct *work)
 {
         struct ib_sa_port *port =
                 container_of(work, struct ib_sa_port, update_task);
-        struct ib_sa_sm_ah *new_ah, *old_ah;
+        struct ib_sa_sm_ah *new_ah;
         struct ib_port_attr port_attr;
         struct ib_ah_attr   ah_attr;
 
@@ -397,12 +395,9 @@ static void update_sm_ah(struct work_struct *work)
         }
 
         spin_lock_irq(&port->ah_lock);
-        old_ah = port->sm_ah;
         port->sm_ah = new_ah;
         spin_unlock_irq(&port->ah_lock);
 
-        if (old_ah)
-                kref_put(&old_ah->ref, free_sm_ah);
 }
 
 static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event)
@@ -413,8 +408,17 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event
             event->event == IB_EVENT_PKEY_CHANGE ||
             event->event == IB_EVENT_SM_CHANGE   ||
             event->event == IB_EVENT_CLIENT_REREGISTER) {
-                struct ib_sa_device *sa_dev;
-                sa_dev = container_of(handler, typeof(*sa_dev), event_handler);
+                unsigned long flags;
+                struct ib_sa_device *sa_dev =
+                        container_of(handler, typeof(*sa_dev), event_handler);
+                struct ib_sa_port *port =
+                        &sa_dev->port[event->element.port_num - sa_dev->start_port];
+
+                spin_lock_irqsave(&port->ah_lock, flags);
+                if (port->sm_ah)
+                        kref_put(&port->sm_ah->ref, free_sm_ah);
+                port->sm_ah = NULL;
+                spin_unlock_irqrestore(&port->ah_lock, flags);
 
                 schedule_work(&sa_dev->port[event->element.port_num -
                                             sa_dev->start_port].update_task);
@@ -519,6 +523,10 @@ static int alloc_mad(struct ib_sa_query *query, gfp_t gfp_mask)
         unsigned long flags;
 
         spin_lock_irqsave(&query->port->ah_lock, flags);
+        if (!query->port->sm_ah) {
+                spin_unlock_irqrestore(&query->port->ah_lock, flags);
+                return -EAGAIN;
+        }
         kref_get(&query->port->sm_ah->ref);
         query->sm_ah = query->port->sm_ah;
         spin_unlock_irqrestore(&query->port->ah_lock, flags);
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 95756551cf7..4d104211559 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: sysfs.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include "core_priv.h"
@@ -665,6 +663,120 @@ static struct class ib_class = {
         .dev_uevent = ib_device_uevent,
 };
 
+/* Show a given an attribute in the statistics group */
+static ssize_t show_protocol_stat(const struct device *device,
+                            struct device_attribute *attr, char *buf,
+                            unsigned offset)
+{
+        struct ib_device *dev = container_of(device, struct ib_device, dev);
+        union rdma_protocol_stats stats;
+        ssize_t ret;
+
+        ret = dev->get_protocol_stats(dev, &stats);
+        if (ret)
+                return ret;
+
+        return sprintf(buf, "%llu\n",
+                       (unsigned long long) ((u64 *) &stats)[offset]);
+}
+
+/* generate a read-only iwarp statistics attribute */
+#define IW_STATS_ENTRY(name)                                            \
+static ssize_t show_##name(struct device *device,                       \
+                           struct device_attribute *attr, char *buf)    \
+{                                                                       \
+        return show_protocol_stat(device, attr, buf,                    \
+                                  offsetof(struct iw_protocol_stats, name) / \
+                                  sizeof (u64));                        \
+}                                                                       \
+static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
+
+IW_STATS_ENTRY(ipInReceives);
+IW_STATS_ENTRY(ipInHdrErrors);
+IW_STATS_ENTRY(ipInTooBigErrors);
+IW_STATS_ENTRY(ipInNoRoutes);
+IW_STATS_ENTRY(ipInAddrErrors);
+IW_STATS_ENTRY(ipInUnknownProtos);
+IW_STATS_ENTRY(ipInTruncatedPkts);
+IW_STATS_ENTRY(ipInDiscards);
+IW_STATS_ENTRY(ipInDelivers);
+IW_STATS_ENTRY(ipOutForwDatagrams);
+IW_STATS_ENTRY(ipOutRequests);
+IW_STATS_ENTRY(ipOutDiscards);
+IW_STATS_ENTRY(ipOutNoRoutes);
+IW_STATS_ENTRY(ipReasmTimeout);
+IW_STATS_ENTRY(ipReasmReqds);
+IW_STATS_ENTRY(ipReasmOKs);
+IW_STATS_ENTRY(ipReasmFails);
+IW_STATS_ENTRY(ipFragOKs);
+IW_STATS_ENTRY(ipFragFails);
+IW_STATS_ENTRY(ipFragCreates);
+IW_STATS_ENTRY(ipInMcastPkts);
+IW_STATS_ENTRY(ipOutMcastPkts);
+IW_STATS_ENTRY(ipInBcastPkts);
+IW_STATS_ENTRY(ipOutBcastPkts);
+IW_STATS_ENTRY(tcpRtoAlgorithm);
+IW_STATS_ENTRY(tcpRtoMin);
+IW_STATS_ENTRY(tcpRtoMax);
+IW_STATS_ENTRY(tcpMaxConn);
+IW_STATS_ENTRY(tcpActiveOpens);
+IW_STATS_ENTRY(tcpPassiveOpens);
+IW_STATS_ENTRY(tcpAttemptFails);
+IW_STATS_ENTRY(tcpEstabResets);
+IW_STATS_ENTRY(tcpCurrEstab);
+IW_STATS_ENTRY(tcpInSegs);
+IW_STATS_ENTRY(tcpOutSegs);
+IW_STATS_ENTRY(tcpRetransSegs);
+IW_STATS_ENTRY(tcpInErrs);
+IW_STATS_ENTRY(tcpOutRsts);
+
+static struct attribute *iw_proto_stats_attrs[] = {
+        &dev_attr_ipInReceives.attr,
+        &dev_attr_ipInHdrErrors.attr,
+        &dev_attr_ipInTooBigErrors.attr,
+        &dev_attr_ipInNoRoutes.attr,
+        &dev_attr_ipInAddrErrors.attr,
+        &dev_attr_ipInUnknownProtos.attr,
+        &dev_attr_ipInTruncatedPkts.attr,
+        &dev_attr_ipInDiscards.attr,
+        &dev_attr_ipInDelivers.attr,
+        &dev_attr_ipOutForwDatagrams.attr,
+        &dev_attr_ipOutRequests.attr,
+        &dev_attr_ipOutDiscards.attr,
+        &dev_attr_ipOutNoRoutes.attr,
+        &dev_attr_ipReasmTimeout.attr,
+        &dev_attr_ipReasmReqds.attr,
+        &dev_attr_ipReasmOKs.attr,
+        &dev_attr_ipReasmFails.attr,
+        &dev_attr_ipFragOKs.attr,
+        &dev_attr_ipFragFails.attr,
+        &dev_attr_ipFragCreates.attr,
+        &dev_attr_ipInMcastPkts.attr,
+        &dev_attr_ipOutMcastPkts.attr,
+        &dev_attr_ipInBcastPkts.attr,
+        &dev_attr_ipOutBcastPkts.attr,
+        &dev_attr_tcpRtoAlgorithm.attr,
+        &dev_attr_tcpRtoMin.attr,
+        &dev_attr_tcpRtoMax.attr,
+        &dev_attr_tcpMaxConn.attr,
+        &dev_attr_tcpActiveOpens.attr,
+        &dev_attr_tcpPassiveOpens.attr,
+        &dev_attr_tcpAttemptFails.attr,
+        &dev_attr_tcpEstabResets.attr,
+        &dev_attr_tcpCurrEstab.attr,
+        &dev_attr_tcpInSegs.attr,
+        &dev_attr_tcpOutSegs.attr,
+        &dev_attr_tcpRetransSegs.attr,
+        &dev_attr_tcpInErrs.attr,
+        &dev_attr_tcpOutRsts.attr,
+        NULL
+};
+
+static struct attribute_group iw_stats_group = {
+        .name   = "proto_stats",
+        .attrs  = iw_proto_stats_attrs,
+};
+
 int ib_device_register_sysfs(struct ib_device *device)
 {
         struct device *class_dev = &device->dev;
@@ -707,6 +819,12 @@ int ib_device_register_sysfs(struct ib_device *device)
                 }
         }
 
+        if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) {
+                ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group);
+                if (ret)
+                        goto err_put;
+        }
+
         return 0;
 
 err_put:
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index b25675faaaf..9494005d1c9 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ucm.c 4311 2005-12-05 18:42:01Z sean.hefty $
  */
 
 #include <linux/completion.h>
diff --git a/drivers/infiniband/core/ud_header.c b/drivers/infiniband/core/ud_header.c
index 997c07db6d8..8ec7876bedc 100644
--- a/drivers/infiniband/core/ud_header.c
+++ b/drivers/infiniband/core/ud_header.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ud_header.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/errno.h>
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index a1768dbb072..6f7c096abf1 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: uverbs_mem.c 2743 2005-06-28 22:27:59Z roland $
  */
 
 #include <linux/mm.h>
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 208c7f34323..268a2d23b7c 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -31,8 +31,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: user_mad.c 5596 2006-03-03 01:00:07Z sean.hefty $
  */
 
 #include <linux/module.h>
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 376a57ce1b4..b3ea9587dc8 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -32,8 +32,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: uverbs.h 2559 2005-06-06 19:43:16Z roland $
  */
 
 #ifndef UVERBS_H
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 2c3bff5fe86..56feab6c251 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -31,8 +31,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: uverbs_cmd.c 2708 2005-06-24 17:27:21Z roland $
  */
 
 #include <linux/file.h>
@@ -919,7 +917,7 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file,
                 resp->wc[i].opcode         = wc[i].opcode;
                 resp->wc[i].vendor_err     = wc[i].vendor_err;
                 resp->wc[i].byte_len       = wc[i].byte_len;
-                resp->wc[i].imm_data       = (__u32 __force) wc[i].imm_data;
+                resp->wc[i].ex.imm_data    = (__u32 __force) wc[i].ex.imm_data;
                 resp->wc[i].qp_num         = wc[i].qp->qp_num;
                 resp->wc[i].src_qp         = wc[i].src_qp;
                 resp->wc[i].wc_flags       = wc[i].wc_flags;
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 0f34858e31e..aeee856c406 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -32,8 +32,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: uverbs_main.c 2733 2005-06-28 19:14:34Z roland $
  */
 
 #include <linux/module.h>
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 05042089de6..a7da9be43e6 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -34,8 +34,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: verbs.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/errno.h>
@@ -317,7 +315,6 @@ static const struct {
 } qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
         [IB_QPS_RESET] = {
                 [IB_QPS_RESET] = { .valid = 1 },
-                [IB_QPS_ERR]   = { .valid = 1 },
                 [IB_QPS_INIT]  = {
                         .valid = 1,
                         .req_param = {
@@ -755,6 +752,52 @@ int ib_dereg_mr(struct ib_mr *mr)
 }
 EXPORT_SYMBOL(ib_dereg_mr);
 
+struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len)
+{
+        struct ib_mr *mr;
+
+        if (!pd->device->alloc_fast_reg_mr)
+                return ERR_PTR(-ENOSYS);
+
+        mr = pd->device->alloc_fast_reg_mr(pd, max_page_list_len);
+
+        if (!IS_ERR(mr)) {
+                mr->device  = pd->device;
+                mr->pd      = pd;
+                mr->uobject = NULL;
+                atomic_inc(&pd->usecnt);
+                atomic_set(&mr->usecnt, 0);
+        }
+
+        return mr;
+}
+EXPORT_SYMBOL(ib_alloc_fast_reg_mr);
+
+struct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list(struct ib_device *device,
+                                                          int max_page_list_len)
+{
+        struct ib_fast_reg_page_list *page_list;
+
+        if (!device->alloc_fast_reg_page_list)
+                return ERR_PTR(-ENOSYS);
+
+        page_list = device->alloc_fast_reg_page_list(device, max_page_list_len);
+
+        if (!IS_ERR(page_list)) {
+                page_list->device = device;
+                page_list->max_page_list_len = max_page_list_len;
+        }
+
+        return page_list;
+}
+EXPORT_SYMBOL(ib_alloc_fast_reg_page_list);
+
+void ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list)
+{
+        page_list->device->free_fast_reg_page_list(page_list);
+}
+EXPORT_SYMBOL(ib_free_fast_reg_page_list);
+
 /* Memory windows */
 
 struct ib_mw *ib_alloc_mw(struct ib_pd *pd)
diff --git a/drivers/infiniband/hw/amso1100/c2_rnic.c b/drivers/infiniband/hw/amso1100/c2_rnic.c
index b1441aeb60c..dd05c483564 100644
--- a/drivers/infiniband/hw/amso1100/c2_rnic.c
+++ b/drivers/infiniband/hw/amso1100/c2_rnic.c
@@ -454,7 +454,7 @@ int __devinit c2_rnic_init(struct c2_dev *c2dev)
             (IB_DEVICE_RESIZE_MAX_WR |
              IB_DEVICE_CURR_QP_STATE_MOD |
              IB_DEVICE_SYS_IMAGE_GUID |
-             IB_DEVICE_ZERO_STAG |
+             IB_DEVICE_LOCAL_DMA_LKEY |
              IB_DEVICE_MEM_WINDOW);
 
         /* Allocate the qptr_array */
diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index 3f441fc57c1..f6d5747153a 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -145,7 +145,9 @@ static int cxio_hal_clear_qp_ctx(struct cxio_rdev *rdev_p, u32 qpid)
         }
         wqe = (struct t3_modify_qp_wr *) skb_put(skb, sizeof(*wqe));
         memset(wqe, 0, sizeof(*wqe));
-        build_fw_riwrh((struct fw_riwrh *) wqe, T3_WR_QP_MOD, 3, 0, qpid, 7);
+        build_fw_riwrh((struct fw_riwrh *) wqe, T3_WR_QP_MOD,
+                       T3_COMPLETION_FLAG | T3_NOTIFY_FLAG, 0, qpid, 7,
+                       T3_SOPEOP);
         wqe->flags = cpu_to_be32(MODQP_WRITE_EC);
         sge_cmd = qpid << 8 | 3;
         wqe->sge_cmd = cpu_to_be64(sge_cmd);
@@ -276,7 +278,7 @@ int cxio_create_qp(struct cxio_rdev *rdev_p, u32 kernel_domain,
         if (!wq->qpid)
                 return -ENOMEM;
 
-        wq->rq = kzalloc(depth * sizeof(u64), GFP_KERNEL);
+        wq->rq = kzalloc(depth * sizeof(struct t3_swrq), GFP_KERNEL);
         if (!wq->rq)
                 goto err1;
 
@@ -300,6 +302,7 @@ int cxio_create_qp(struct cxio_rdev *rdev_p, u32 kernel_domain,
         if (!kernel_domain)
                 wq->udb = (u64)rdev_p->rnic_info.udbell_physbase +
                                         (wq->qpid << rdev_p->qpshift);
+        wq->rdev = rdev_p;
         PDBG("%s qpid 0x%x doorbell 0x%p udb 0x%llx\n", __func__,
              wq->qpid, wq->doorbell, (unsigned long long) wq->udb);
         return 0;
@@ -558,7 +561,7 @@ static int cxio_hal_init_ctrl_qp(struct cxio_rdev *rdev_p)
         wqe = (struct t3_modify_qp_wr *) skb_put(skb, sizeof(*wqe));
         memset(wqe, 0, sizeof(*wqe));
         build_fw_riwrh((struct fw_riwrh *) wqe, T3_WR_QP_MOD, 0, 0,
-                       T3_CTL_QP_TID, 7);
+                       T3_CTL_QP_TID, 7, T3_SOPEOP);
         wqe->flags = cpu_to_be32(MODQP_WRITE_EC);
         sge_cmd = (3ULL << 56) | FW_RI_SGEEC_START << 8 | 3;
         wqe->sge_cmd = cpu_to_be64(sge_cmd);
@@ -674,7 +677,7 @@ static int cxio_hal_ctrl_qp_write_mem(struct cxio_rdev *rdev_p, u32 addr,
                 build_fw_riwrh((struct fw_riwrh *) wqe, T3_WR_BP, flag,
                                Q_GENBIT(rdev_p->ctrl_qp.wptr,
                                         T3_CTRL_QP_SIZE_LOG2), T3_CTRL_QP_ID,
-                               wr_len);
+                               wr_len, T3_SOPEOP);
                 if (flag == T3_COMPLETION_FLAG)
                         ring_doorbell(rdev_p->ctrl_qp.doorbell, T3_CTRL_QP_ID);
                 len -= 96;
@@ -816,6 +819,13 @@ int cxio_deallocate_window(struct cxio_rdev *rdev_p, u32 stag)
                              0, 0);
 }
 
+int cxio_allocate_stag(struct cxio_rdev *rdev_p, u32 *stag, u32 pdid, u32 pbl_size, u32 pbl_addr)
+{
+        *stag = T3_STAG_UNSET;
+        return __cxio_tpt_op(rdev_p, 0, stag, 0, pdid, TPT_NON_SHARED_MR,
+                             0, 0, 0ULL, 0, 0, pbl_size, pbl_addr);
+}
+
 int cxio_rdma_init(struct cxio_rdev *rdev_p, struct t3_rdma_init_attr *attr)
 {
         struct t3_rdma_init_wr *wqe;
@@ -1257,13 +1267,16 @@ proc_cqe:
                 wq->sq_rptr = CQE_WRID_SQ_WPTR(*hw_cqe);
                 PDBG("%s completing sq idx %ld\n", __func__,
                      Q_PTR2IDX(wq->sq_rptr, wq->sq_size_log2));
-                *cookie = (wq->sq +
-                           Q_PTR2IDX(wq->sq_rptr, wq->sq_size_log2))->wr_id;
+                *cookie = wq->sq[Q_PTR2IDX(wq->sq_rptr, wq->sq_size_log2)].wr_id;
                 wq->sq_rptr++;
         } else {
                 PDBG("%s completing rq idx %ld\n", __func__,
                      Q_PTR2IDX(wq->rq_rptr, wq->rq_size_log2));
-                *cookie = *(wq->rq + Q_PTR2IDX(wq->rq_rptr, wq->rq_size_log2));
+                *cookie = wq->rq[Q_PTR2IDX(wq->rq_rptr, wq->rq_size_log2)].wr_id;
+                if (wq->rq[Q_PTR2IDX(wq->rq_rptr, wq->rq_size_log2)].pbl_addr)
+                        cxio_hal_pblpool_free(wq->rdev,
+                                wq->rq[Q_PTR2IDX(wq->rq_rptr,
+                                wq->rq_size_log2)].pbl_addr, T3_STAG0_PBL_SIZE);
                 wq->rq_rptr++;
         }
 
diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.h b/drivers/infiniband/hw/cxgb3/cxio_hal.h
index 6e128f6bab0..656fe47bc84 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.h
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.h
@@ -45,15 +45,17 @@
 #define T3_CTRL_QP_SIZE_LOG2  8
 #define T3_CTRL_CQ_ID    0
 
-/* TBD */
 #define T3_MAX_NUM_RI (1<<15)
 #define T3_MAX_NUM_QP (1<<15)
 #define T3_MAX_NUM_CQ (1<<15)
 #define T3_MAX_NUM_PD (1<<15)
 #define T3_MAX_PBL_SIZE 256
 #define T3_MAX_RQ_SIZE 1024
+#define T3_MAX_QP_DEPTH (T3_MAX_RQ_SIZE-1)
+#define T3_MAX_CQ_DEPTH 8192
 #define T3_MAX_NUM_STAG (1<<15)
 #define T3_MAX_MR_SIZE 0x100000000ULL
+#define T3_PAGESIZE_MASK 0xffff000  /* 4KB-128MB */
 
 #define T3_STAG_UNSET 0xffffffff
 
@@ -165,6 +167,7 @@ int cxio_reregister_phys_mem(struct cxio_rdev *rdev, u32 * stag, u32 pdid,
 int cxio_dereg_mem(struct cxio_rdev *rdev, u32 stag, u32 pbl_size,
                    u32 pbl_addr);
 int cxio_allocate_window(struct cxio_rdev *rdev, u32 * stag, u32 pdid);
+int cxio_allocate_stag(struct cxio_rdev *rdev, u32 *stag, u32 pdid, u32 pbl_size, u32 pbl_addr);
 int cxio_deallocate_window(struct cxio_rdev *rdev, u32 stag);
 int cxio_rdma_init(struct cxio_rdev *rdev, struct t3_rdma_init_attr *attr);
 void cxio_register_ev_cb(cxio_hal_ev_callback_func_t ev_cb);
diff --git a/drivers/infiniband/hw/cxgb3/cxio_wr.h b/drivers/infiniband/hw/cxgb3/cxio_wr.h
index f1a25a821a4..04618f7bfbb 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_wr.h
+++ b/drivers/infiniband/hw/cxgb3/cxio_wr.h
@@ -39,6 +39,9 @@
 
 #define T3_MAX_SGE      4
 #define T3_MAX_INLINE   64
+#define T3_STAG0_PBL_SIZE (2 * T3_MAX_SGE << 3)
+#define T3_STAG0_MAX_PBE_LEN (128 * 1024 * 1024)
+#define T3_STAG0_PAGE_SHIFT 15
 
 #define Q_EMPTY(rptr,wptr) ((rptr)==(wptr))
 #define Q_FULL(rptr,wptr,size_log2)  ( (((wptr)-(rptr))>>(size_log2)) && \
@@ -72,7 +75,8 @@ enum t3_wr_opcode {
         T3_WR_BIND = FW_WROPCODE_RI_BIND_MW,
         T3_WR_RCV = FW_WROPCODE_RI_RECEIVE,
         T3_WR_INIT = FW_WROPCODE_RI_RDMA_INIT,
-        T3_WR_QP_MOD = FW_WROPCODE_RI_MODIFY_QP
+        T3_WR_QP_MOD = FW_WROPCODE_RI_MODIFY_QP,
+        T3_WR_FASTREG = FW_WROPCODE_RI_FASTREGISTER_MR
 } __attribute__ ((packed));
 
 enum t3_rdma_opcode {
@@ -89,7 +93,8 @@ enum t3_rdma_opcode {
         T3_FAST_REGISTER,
         T3_LOCAL_INV,
         T3_QP_MOD,
-        T3_BYPASS
+        T3_BYPASS,
+        T3_RDMA_READ_REQ_WITH_INV,
 } __attribute__ ((packed));
 
 static inline enum t3_rdma_opcode wr2opcode(enum t3_wr_opcode wrop)
@@ -103,6 +108,7 @@ static inline enum t3_rdma_opcode wr2opcode(enum t3_wr_opcode wrop)
                 case T3_WR_BIND: return T3_BIND_MW;
                 case T3_WR_INIT: return T3_RDMA_INIT;
                 case T3_WR_QP_MOD: return T3_QP_MOD;
+                case T3_WR_FASTREG: return T3_FAST_REGISTER;
                 default: break;
         }
         return -1;
@@ -170,11 +176,54 @@ struct t3_send_wr {
         struct t3_sge sgl[T3_MAX_SGE];  /* 4+ */
 };
 
+#define T3_MAX_FASTREG_DEPTH 24
+#define T3_MAX_FASTREG_FRAG 10
+
+struct t3_fastreg_wr {
+        struct fw_riwrh wrh;    /* 0 */
+        union t3_wrid wrid;     /* 1 */
+        __be32 stag;            /* 2 */
+        __be32 len;
+        __be32 va_base_hi;      /* 3 */
+        __be32 va_base_lo_fbo;
+        __be32 page_type_perms; /* 4 */
+        __be32 reserved1;
+        __be64 pbl_addrs[0];    /* 5+ */
+};
+
+/*
+ * If a fastreg wr spans multiple wqes, then the 2nd fragment look like this.
+ */
+struct t3_pbl_frag {
+        struct fw_riwrh wrh;    /* 0 */
+        __be64 pbl_addrs[14];   /* 1..14 */
+};
+
+#define S_FR_PAGE_COUNT         24
+#define M_FR_PAGE_COUNT         0xff
+#define V_FR_PAGE_COUNT(x)      ((x) << S_FR_PAGE_COUNT)
+#define G_FR_PAGE_COUNT(x)      ((((x) >> S_FR_PAGE_COUNT)) & M_FR_PAGE_COUNT)
+
+#define S_FR_PAGE_SIZE          16
+#define M_FR_PAGE_SIZE          0x1f
+#define V_FR_PAGE_SIZE(x)       ((x) << S_FR_PAGE_SIZE)
+#define G_FR_PAGE_SIZE(x)       ((((x) >> S_FR_PAGE_SIZE)) & M_FR_PAGE_SIZE)
+
+#define S_FR_TYPE               8
+#define M_FR_TYPE               0x1
+#define V_FR_TYPE(x)            ((x) << S_FR_TYPE)
+#define G_FR_TYPE(x)            ((((x) >> S_FR_TYPE)) & M_FR_TYPE)
+
+#define S_FR_PERMS              0
+#define M_FR_PERMS              0xff
+#define V_FR_PERMS(x)           ((x) << S_FR_PERMS)
+#define G_FR_PERMS(x)           ((((x) >> S_FR_PERMS)) & M_FR_PERMS)
+
 struct t3_local_inv_wr {
         struct fw_riwrh wrh;    /* 0 */
         union t3_wrid wrid;     /* 1 */
         __be32 stag;            /* 2 */
-        __be32 reserved3;
+        __be32 reserved;
 };
 
 struct t3_rdma_write_wr {
@@ -193,7 +242,8 @@ struct t3_rdma_read_wr {
         struct fw_riwrh wrh;    /* 0 */
         union t3_wrid wrid;     /* 1 */
         u8 rdmaop;              /* 2 */
-        u8 reserved[3];
+        u8 local_inv;
+        u8 reserved[2];
         __be32 rem_stag;
         __be64 rem_to;          /* 3 */
         __be32 local_stag;      /* 4 */
@@ -201,18 +251,6 @@ struct t3_rdma_read_wr {
         __be64 local_to;        /* 5 */
 };
 
-enum t3_addr_type {
-        T3_VA_BASED_TO = 0x0,
-        T3_ZERO_BASED_TO = 0x1
-} __attribute__ ((packed));
-
-enum t3_mem_perms {
-        T3_MEM_ACCESS_LOCAL_READ = 0x1,
-        T3_MEM_ACCESS_LOCAL_WRITE = 0x2,
-        T3_MEM_ACCESS_REM_READ = 0x4,
-        T3_MEM_ACCESS_REM_WRITE = 0x8
-} __attribute__ ((packed));
-
 struct t3_bind_mw_wr {
         struct fw_riwrh wrh;    /* 0 */
         union t3_wrid wrid;     /* 1 */
@@ -336,6 +374,11 @@ struct t3_genbit {
         __be64 genbit;
 };
 
+struct t3_wq_in_err {
+        u64 flit[13];
+        u64 err;
+};
+
 enum rdma_init_wr_flags {
         MPA_INITIATOR = (1<<0),
         PRIV_QP = (1<<1),
@@ -346,13 +389,16 @@ union t3_wr {
         struct t3_rdma_write_wr write;
         struct t3_rdma_read_wr read;
         struct t3_receive_wr recv;
+        struct t3_fastreg_wr fastreg;
+        struct t3_pbl_frag pbl_frag;
         struct t3_local_inv_wr local_inv;
         struct t3_bind_mw_wr bind;
         struct t3_bypass_wr bypass;
         struct t3_rdma_init_wr init;
         struct t3_modify_qp_wr qp_mod;
         struct t3_genbit genbit;
-        u64 flit[16];
+        struct t3_wq_in_err wq_in_err;
+        __be64 flit[16];
 };
 
 #define T3_SQ_CQE_FLIT    13
@@ -366,12 +412,18 @@ static inline enum t3_wr_opcode fw_riwrh_opcode(struct fw_riwrh *wqe)
         return G_FW_RIWR_OP(be32_to_cpu(wqe->op_seop_flags));
 }
 
+enum t3_wr_hdr_bits {
+        T3_EOP = 1,
+        T3_SOP = 2,
+        T3_SOPEOP = T3_EOP|T3_SOP,
+};
+
 static inline void build_fw_riwrh(struct fw_riwrh *wqe, enum t3_wr_opcode op,
                                   enum t3_wr_flags flags, u8 genbit, u32 tid,
-                                  u8 len)
+                                  u8 len, u8 sopeop)
 {
         wqe->op_seop_flags = cpu_to_be32(V_FW_RIWR_OP(op) |
-                                         V_FW_RIWR_SOPEOP(M_FW_RIWR_SOPEOP) |
+                                         V_FW_RIWR_SOPEOP(sopeop) |
                                          V_FW_RIWR_FLAGS(flags));
         wmb();
         wqe->gen_tid_len = cpu_to_be32(V_FW_RIWR_GEN(genbit) |
@@ -404,6 +456,7 @@ enum tpt_addr_type {
 };
 
 enum tpt_mem_perm {
+        TPT_MW_BIND = 0x10,
         TPT_LOCAL_READ = 0x8,
         TPT_LOCAL_WRITE = 0x4,
         TPT_REMOTE_READ = 0x2,
@@ -615,6 +668,11 @@ struct t3_swsq {
         int                     signaled;
 };
 
+struct t3_swrq {
+        __u64                   wr_id;
+        __u32                   pbl_addr;
+};
+
 /*
  * A T3 WQ implements both the SQ and RQ.
  */
@@ -631,14 +689,15 @@ struct t3_wq {
         u32 sq_wptr;                    /* sq_wptr - sq_rptr == count of */
         u32 sq_rptr;                    /* pending wrs */
         u32 sq_size_log2;               /* sq size */
-        u64 *rq;                        /* SW RQ (holds consumer wr_ids */
+        struct t3_swrq *rq;             /* SW RQ (holds consumer wr_ids */
         u32 rq_wptr;                    /* rq_wptr - rq_rptr == count of */
         u32 rq_rptr;                    /* pending wrs */
-        u64 *rq_oldest_wr;              /* oldest wr on the SW RQ */
+        struct t3_swrq *rq_oldest_wr;   /* oldest wr on the SW RQ */
         u32 rq_size_log2;               /* rq size */
         u32 rq_addr;                    /* rq adapter address */
         void __iomem *doorbell;         /* kernel db */
         u64 udb;                        /* user db if any */
+        struct cxio_rdev *rdev;
 };
 
 struct t3_cq {
@@ -659,7 +718,7 @@ struct t3_cq {
 
 static inline void cxio_set_wq_in_error(struct t3_wq *wq)
 {
-        wq->queue->flit[13] = 1;
+        wq->queue->wq_in_err.err = 1;
 }
 
 static inline struct t3_cqe *cxio_next_hw_cqe(struct t3_cq *cq)
diff --git a/drivers/infiniband/hw/cxgb3/iwch.c b/drivers/infiniband/hw/cxgb3/iwch.c
index 71554eacb13..4489c89d671 100644
--- a/drivers/infiniband/hw/cxgb3/iwch.c
+++ b/drivers/infiniband/hw/cxgb3/iwch.c
@@ -71,18 +71,16 @@ static void rnic_init(struct iwch_dev *rnicp)
         idr_init(&rnicp->mmidr);
         spin_lock_init(&rnicp->lock);
 
-        rnicp->attr.vendor_id = 0x168;
-        rnicp->attr.vendor_part_id = 7;
         rnicp->attr.max_qps = T3_MAX_NUM_QP - 32;
-        rnicp->attr.max_wrs = (1UL << 24) - 1;
+        rnicp->attr.max_wrs = T3_MAX_QP_DEPTH;
         rnicp->attr.max_sge_per_wr = T3_MAX_SGE;
         rnicp->attr.max_sge_per_rdma_write_wr = T3_MAX_SGE;
         rnicp->attr.max_cqs = T3_MAX_NUM_CQ - 1;
-        rnicp->attr.max_cqes_per_cq = (1UL << 24) - 1;
+        rnicp->attr.max_cqes_per_cq = T3_MAX_CQ_DEPTH;
         rnicp->attr.max_mem_regs = cxio_num_stags(&rnicp->rdev);
         rnicp->attr.max_phys_buf_entries = T3_MAX_PBL_SIZE;
         rnicp->attr.max_pds = T3_MAX_NUM_PD - 1;
-        rnicp->attr.mem_pgsizes_bitmask = 0x7FFF;       /* 4KB-128MB */
+        rnicp->attr.mem_pgsizes_bitmask = T3_PAGESIZE_MASK;
         rnicp->attr.max_mr_size = T3_MAX_MR_SIZE;
         rnicp->attr.can_resize_wq = 0;
         rnicp->attr.max_rdma_reads_per_qp = 8;
diff --git a/drivers/infiniband/hw/cxgb3/iwch.h b/drivers/infiniband/hw/cxgb3/iwch.h
index d2409a505e8..3773453b2cf 100644
--- a/drivers/infiniband/hw/cxgb3/iwch.h
+++ b/drivers/infiniband/hw/cxgb3/iwch.h
@@ -48,8 +48,6 @@ struct iwch_qp;
 struct iwch_mr;
 
 struct iwch_rnic_attributes {
-        u32 vendor_id;
-        u32 vendor_part_id;
         u32 max_qps;
         u32 max_wrs;                            /* Max for any SQ/RQ */
         u32 max_sge_per_wr;
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cq.c b/drivers/infiniband/hw/cxgb3/iwch_cq.c
index 4ee8ccd0a9e..cf5474ae68f 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cq.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cq.c
@@ -81,6 +81,7 @@ static int iwch_poll_cq_one(struct iwch_dev *rhp, struct iwch_cq *chp,
         wc->wr_id = cookie;
         wc->qp = &qhp->ibqp;
         wc->vendor_err = CQE_STATUS(cqe);
+        wc->wc_flags = 0;
 
         PDBG("%s qpid 0x%x type %d opcode %d status 0x%x wrid hi 0x%x "
              "lo 0x%x cookie 0x%llx\n", __func__,
@@ -94,6 +95,11 @@ static int iwch_poll_cq_one(struct iwch_dev *rhp, struct iwch_cq *chp,
                 else
                         wc->byte_len = 0;
                 wc->opcode = IB_WC_RECV;
+                if (CQE_OPCODE(cqe) == T3_SEND_WITH_INV ||
+                    CQE_OPCODE(cqe) == T3_SEND_WITH_SE_INV) {
+                        wc->ex.invalidate_rkey = CQE_WRID_STAG(cqe);
+                        wc->wc_flags |= IB_WC_WITH_INVALIDATE;
+                }
         } else {
                 switch (CQE_OPCODE(cqe)) {
                 case T3_RDMA_WRITE:
@@ -105,17 +111,20 @@ static int iwch_poll_cq_one(struct iwch_dev *rhp, struct iwch_cq *chp,
                         break;
                 case T3_SEND:
                 case T3_SEND_WITH_SE:
+                case T3_SEND_WITH_INV:
+                case T3_SEND_WITH_SE_INV:
                         wc->opcode = IB_WC_SEND;
                         break;
                 case T3_BIND_MW:
                         wc->opcode = IB_WC_BIND_MW;
                         break;
 
-                /* these aren't supported yet */
-                case T3_SEND_WITH_INV:
-                case T3_SEND_WITH_SE_INV:
                 case T3_LOCAL_INV:
+                        wc->opcode = IB_WC_LOCAL_INV;
+                        break;
                 case T3_FAST_REGISTER:
+                        wc->opcode = IB_WC_FAST_REG_MR;
+                        break;
                 default:
                         printk(KERN_ERR MOD "Unexpected opcode %d "
                                "in the CQE received for QPID=0x%0x\n",
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 95f82cfb6c5..b89640aa6e1 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -56,6 +56,7 @@
 #include "iwch_provider.h"
 #include "iwch_cm.h"
 #include "iwch_user.h"
+#include "common.h"
 
 static int iwch_modify_port(struct ib_device *ibdev,
                             u8 port, int port_modify_mask,
@@ -747,6 +748,7 @@ static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
         mhp->attr.type = TPT_MW;
         mhp->attr.stag = stag;
         mmid = (stag) >> 8;
+        mhp->ibmw.rkey = stag;
         insert_handle(rhp, &rhp->mmidr, mhp, mmid);
         PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
         return &(mhp->ibmw);
@@ -768,6 +770,68 @@ static int iwch_dealloc_mw(struct ib_mw *mw)
         return 0;
 }
 
+static struct ib_mr *iwch_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth)
+{
+        struct iwch_dev *rhp;
+        struct iwch_pd *php;
+        struct iwch_mr *mhp;
+        u32 mmid;
+        u32 stag = 0;
+        int ret;
+
+        php = to_iwch_pd(pd);
+        rhp = php->rhp;
+        mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
+        if (!mhp)
+                return ERR_PTR(-ENOMEM);
+
+        mhp->rhp = rhp;
+        ret = iwch_alloc_pbl(mhp, pbl_depth);
+        if (ret) {
+                kfree(mhp);
+                return ERR_PTR(ret);
+        }
+        mhp->attr.pbl_size = pbl_depth;
+        ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid,
+                                 mhp->attr.pbl_size, mhp->attr.pbl_addr);
+        if (ret) {
+                iwch_free_pbl(mhp);
+                kfree(mhp);
+                return ERR_PTR(ret);
+        }
+        mhp->attr.pdid = php->pdid;
+        mhp->attr.type = TPT_NON_SHARED_MR;
+        mhp->attr.stag = stag;
+        mhp->attr.state = 1;
+        mmid = (stag) >> 8;
+        mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
+        insert_handle(rhp, &rhp->mmidr, mhp, mmid);
+        PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
+        return &(mhp->ibmr);
+}
+
+static struct ib_fast_reg_page_list *iwch_alloc_fastreg_pbl(
+                                        struct ib_device *device,
+                                        int page_list_len)
+{
+        struct ib_fast_reg_page_list *page_list;
+
+        page_list = kmalloc(sizeof *page_list + page_list_len * sizeof(u64),
+                            GFP_KERNEL);
+        if (!page_list)
+                return ERR_PTR(-ENOMEM);
+
+        page_list->page_list = (u64 *)(page_list + 1);
+        page_list->max_page_list_len = page_list_len;
+
+        return page_list;
+}
+
+static void iwch_free_fastreg_pbl(struct ib_fast_reg_page_list *page_list)
+{
+        kfree(page_list);
+}
+
 static int iwch_destroy_qp(struct ib_qp *ib_qp)
 {
         struct iwch_dev *rhp;
@@ -843,6 +907,15 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
          */
         sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
         wqsize = roundup_pow_of_two(rqsize + sqsize);
+
+        /*
+         * Kernel users need more wq space for fastreg WRs which can take
+         * 2 WR fragments.
+         */
+        ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
+        if (!ucontext && wqsize < (rqsize + (2 * sqsize)))
+                wqsize = roundup_pow_of_two(rqsize +
+                                roundup_pow_of_two(attrs->cap.max_send_wr * 2));
         PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__,
              wqsize, sqsize, rqsize);
         qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
@@ -851,7 +924,6 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
         qhp->wq.size_log2 = ilog2(wqsize);
         qhp->wq.rq_size_log2 = ilog2(rqsize);
         qhp->wq.sq_size_log2 = ilog2(sqsize);
-        ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
         if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
                            ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
                 kfree(qhp);
@@ -935,10 +1007,10 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
         qhp->ibqp.qp_num = qhp->wq.qpid;
         init_timer(&(qhp->timer));
         PDBG("%s sq_num_entries %d, rq_num_entries %d "
-             "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n",
+             "qpid 0x%0x qhp %p dma_addr 0x%llx size %d rq_addr 0x%x\n",
              __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
              qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
-             1 << qhp->wq.size_log2);
+             1 << qhp->wq.size_log2, qhp->wq.rq_addr);
         return &qhp->ibqp;
 }
 
@@ -1023,6 +1095,29 @@ static int iwch_query_gid(struct ib_device *ibdev, u8 port,
         return 0;
 }
 
+static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev)
+{
+        struct ethtool_drvinfo info;
+        struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
+        char *cp, *next;
+        unsigned fw_maj, fw_min, fw_mic;
+
+        rtnl_lock();
+        lldev->ethtool_ops->get_drvinfo(lldev, &info);
+        rtnl_unlock();
+
+        next = info.fw_version + 1;
+        cp = strsep(&next, ".");
+        sscanf(cp, "%i", &fw_maj);
+        cp = strsep(&next, ".");
+        sscanf(cp, "%i", &fw_min);
+        cp = strsep(&next, ".");
+        sscanf(cp, "%i", &fw_mic);
+
+        return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) |
+               (fw_mic & 0xffff);
+}
+
 static int iwch_query_device(struct ib_device *ibdev,
                              struct ib_device_attr *props)
 {
@@ -1033,7 +1128,10 @@ static int iwch_query_device(struct ib_device *ibdev,
         dev = to_iwch_dev(ibdev);
         memset(props, 0, sizeof *props);
         memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
+        props->hw_ver = dev->rdev.t3cdev_p->type;
+        props->fw_ver = fw_vers_string_to_u64(dev);
         props->device_cap_flags = dev->device_cap_flags;
+        props->page_size_cap = dev->attr.mem_pgsizes_bitmask;
         props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
         props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
         props->max_mr_size = dev->attr.max_mr_size;
@@ -1048,6 +1146,7 @@ static int iwch_query_device(struct ib_device *ibdev,
         props->max_mr = dev->attr.max_mem_regs;
         props->max_pd = dev->attr.max_pds;
         props->local_ca_ack_delay = 0;
+        props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH;
 
         return 0;
 }
@@ -1088,6 +1187,28 @@ static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
         return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
 }
 
+static int fw_supports_fastreg(struct iwch_dev *iwch_dev)
+{
+        struct ethtool_drvinfo info;
+        struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
+        char *cp, *next;
+        unsigned fw_maj, fw_min;
+
+        rtnl_lock();
+        lldev->ethtool_ops->get_drvinfo(lldev, &info);
+        rtnl_unlock();
+
+        next = info.fw_version+1;
+        cp = strsep(&next, ".");
+        sscanf(cp, "%i", &fw_maj);
+        cp = strsep(&next, ".");
+        sscanf(cp, "%i", &fw_min);
+
+        PDBG("%s maj %u min %u\n", __func__, fw_maj, fw_min);
+
+        return fw_maj > 6 || (fw_maj == 6 && fw_min > 0);
+}
+
 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf)
 {
         struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
@@ -1127,6 +1248,61 @@ static ssize_t show_board(struct device *dev, struct device_attribute *attr,
                        iwch_dev->rdev.rnic_info.pdev->device);
 }
 
+static int iwch_get_mib(struct ib_device *ibdev,
+                        union rdma_protocol_stats *stats)
+{
+        struct iwch_dev *dev;
+        struct tp_mib_stats m;
+        int ret;
+
+        PDBG("%s ibdev %p\n", __func__, ibdev);
+        dev = to_iwch_dev(ibdev);
+        ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m);
+        if (ret)
+                return -ENOSYS;
+
+        memset(stats, 0, sizeof *stats);
+        stats->iw.ipInReceives = ((u64) m.ipInReceive_hi << 32) +
+                                m.ipInReceive_lo;
+        stats->iw.ipInHdrErrors = ((u64) m.ipInHdrErrors_hi << 32) +
+                                  m.ipInHdrErrors_lo;
+        stats->iw.ipInAddrErrors = ((u64) m.ipInAddrErrors_hi << 32) +
+                                   m.ipInAddrErrors_lo;
+        stats->iw.ipInUnknownProtos = ((u64) m.ipInUnknownProtos_hi << 32) +
+                                      m.ipInUnknownProtos_lo;
+        stats->iw.ipInDiscards = ((u64) m.ipInDiscards_hi << 32) +
+                                 m.ipInDiscards_lo;
+        stats->iw.ipInDelivers = ((u64) m.ipInDelivers_hi << 32) +
+                                 m.ipInDelivers_lo;
+        stats->iw.ipOutRequests = ((u64) m.ipOutRequests_hi << 32) +
+                                  m.ipOutRequests_lo;
+        stats->iw.ipOutDiscards = ((u64) m.ipOutDiscards_hi << 32) +
+                                  m.ipOutDiscards_lo;
+        stats->iw.ipOutNoRoutes = ((u64) m.ipOutNoRoutes_hi << 32) +
+                                  m.ipOutNoRoutes_lo;
+        stats->iw.ipReasmTimeout = (u64) m.ipReasmTimeout;
+        stats->iw.ipReasmReqds = (u64) m.ipReasmReqds;
+        stats->iw.ipReasmOKs = (u64) m.ipReasmOKs;
+        stats->iw.ipReasmFails = (u64) m.ipReasmFails;
+        stats->iw.tcpActiveOpens = (u64) m.tcpActiveOpens;
+        stats->iw.tcpPassiveOpens = (u64) m.tcpPassiveOpens;
+        stats->iw.tcpAttemptFails = (u64) m.tcpAttemptFails;
+        stats->iw.tcpEstabResets = (u64) m.tcpEstabResets;
+        stats->iw.tcpOutRsts = (u64) m.tcpOutRsts;
+        stats->iw.tcpCurrEstab = (u64) m.tcpCurrEstab;
+        stats->iw.tcpInSegs = ((u64) m.tcpInSegs_hi << 32) +
+                              m.tcpInSegs_lo;
+        stats->iw.tcpOutSegs = ((u64) m.tcpOutSegs_hi << 32) +
+                               m.tcpOutSegs_lo;
+        stats->iw.tcpRetransSegs = ((u64) m.tcpRetransSeg_hi << 32) +
+                                  m.tcpRetransSeg_lo;
+        stats->iw.tcpInErrs = ((u64) m.tcpInErrs_hi << 32) +
+                              m.tcpInErrs_lo;
+        stats->iw.tcpRtoMin = (u64) m.tcpRtoMin;
+        stats->iw.tcpRtoMax = (u64) m.tcpRtoMax;
+        return 0;
+}
+
 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
@@ -1136,7 +1312,7 @@ static struct device_attribute *iwch_class_attributes[] = {
         &dev_attr_hw_rev,
         &dev_attr_fw_ver,
         &dev_attr_hca_type,
-        &dev_attr_board_id
+        &dev_attr_board_id,
 };
 
 int iwch_register_device(struct iwch_dev *dev)
@@ -1149,8 +1325,12 @@ int iwch_register_device(struct iwch_dev *dev)
         memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
         memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
         dev->ibdev.owner = THIS_MODULE;
-        dev->device_cap_flags =
-            (IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW);
+        dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
+
+        /* cxgb3 supports STag 0. */
+        dev->ibdev.local_dma_lkey = 0;
+        if (fw_supports_fastreg(dev))
+                dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
 
         dev->ibdev.uverbs_cmd_mask =
             (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
@@ -1202,15 +1382,16 @@ int iwch_register_device(struct iwch_dev *dev)
         dev->ibdev.alloc_mw = iwch_alloc_mw;
         dev->ibdev.bind_mw = iwch_bind_mw;
         dev->ibdev.dealloc_mw = iwch_dealloc_mw;
-
+        dev->ibdev.alloc_fast_reg_mr = iwch_alloc_fast_reg_mr;
+        dev->ibdev.alloc_fast_reg_page_list = iwch_alloc_fastreg_pbl;
+        dev->ibdev.free_fast_reg_page_list = iwch_free_fastreg_pbl;
         dev->ibdev.attach_mcast = iwch_multicast_attach;
         dev->ibdev.detach_mcast = iwch_multicast_detach;
         dev->ibdev.process_mad = iwch_process_mad;
-
         dev->ibdev.req_notify_cq = iwch_arm_cq;
         dev->ibdev.post_send = iwch_post_send;
         dev->ibdev.post_recv = iwch_post_receive;
-
+        dev->ibdev.get_protocol_stats = iwch_get_mib;
 
         dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
         if (!dev->ibdev.iwcm)
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.h b/drivers/infiniband/hw/cxgb3/iwch_provider.h
index 836163fc542..f5ceca05c43 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.h
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.h
@@ -296,14 +296,6 @@ static inline u32 iwch_ib_to_tpt_access(int acc)
                TPT_LOCAL_READ;
 }
 
-static inline u32 iwch_ib_to_mwbind_access(int acc)
-{
-        return (acc & IB_ACCESS_REMOTE_WRITE ? T3_MEM_ACCESS_REM_WRITE : 0) |
-               (acc & IB_ACCESS_REMOTE_READ ? T3_MEM_ACCESS_REM_READ : 0) |
-               (acc & IB_ACCESS_LOCAL_WRITE ? T3_MEM_ACCESS_LOCAL_WRITE : 0) |
-               T3_MEM_ACCESS_LOCAL_READ;
-}
-
 enum iwch_mmid_state {
         IWCH_STAG_STATE_VALID,
         IWCH_STAG_STATE_INVALID
diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index 99261379922..9a3be3a9d5d 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -33,10 +33,11 @@
 #include "iwch.h"
 #include "iwch_cm.h"
 #include "cxio_hal.h"
+#include "cxio_resource.h"
 
 #define NO_SUPPORT -1
 
-static int iwch_build_rdma_send(union t3_wr *wqe, struct ib_send_wr *wr,
+static int build_rdma_send(union t3_wr *wqe, struct ib_send_wr *wr,
                                 u8 * flit_cnt)
 {
         int i;
@@ -44,59 +45,44 @@ static int iwch_build_rdma_send(union t3_wr *wqe, struct ib_send_wr *wr,
 
         switch (wr->opcode) {
         case IB_WR_SEND:
-        case IB_WR_SEND_WITH_IMM:
                 if (wr->send_flags & IB_SEND_SOLICITED)
                         wqe->send.rdmaop = T3_SEND_WITH_SE;
                 else
                         wqe->send.rdmaop = T3_SEND;
                 wqe->send.rem_stag = 0;
                 break;
-#if 0                           /* Not currently supported */
-        case TYPE_SEND_INVALIDATE:
-        case TYPE_SEND_INVALIDATE_IMMEDIATE:
-                wqe->send.rdmaop = T3_SEND_WITH_INV;
-                wqe->send.rem_stag = cpu_to_be32(wr->wr.rdma.rkey);
-                break;
-        case TYPE_SEND_SE_INVALIDATE:
-                wqe->send.rdmaop = T3_SEND_WITH_SE_INV;
-                wqe->send.rem_stag = cpu_to_be32(wr->wr.rdma.rkey);
+        case IB_WR_SEND_WITH_INV:
+                if (wr->send_flags & IB_SEND_SOLICITED)
+                        wqe->send.rdmaop = T3_SEND_WITH_SE_INV;
+                else
+                        wqe->send.rdmaop = T3_SEND_WITH_INV;
+                wqe->send.rem_stag = cpu_to_be32(wr->ex.invalidate_rkey);
                 break;
-#endif
         default:
-                break;
+                return -EINVAL;
         }
         if (wr->num_sge > T3_MAX_SGE)
                 return -EINVAL;
         wqe->send.reserved[0] = 0;
         wqe->send.reserved[1] = 0;
         wqe->send.reserved[2] = 0;
-        if (wr->opcode == IB_WR_SEND_WITH_IMM) {
-                plen = 4;
-                wqe->send.sgl[0].stag = wr->ex.imm_data;
-                wqe->send.sgl[0].len = __constant_cpu_to_be32(0);
-                wqe->send.num_sgle = __constant_cpu_to_be32(0);
-                *flit_cnt = 5;
-        } else {
-                plen = 0;
-                for (i = 0; i < wr->num_sge; i++) {
-                        if ((plen + wr->sg_list[i].length) < plen) {
-                                return -EMSGSIZE;
-                        }
-                        plen += wr->sg_list[i].length;
-                        wqe->send.sgl[i].stag =
-                            cpu_to_be32(wr->sg_list[i].lkey);
-                        wqe->send.sgl[i].len =
-                            cpu_to_be32(wr->sg_list[i].length);
-                        wqe->send.sgl[i].to = cpu_to_be64(wr->sg_list[i].addr);
-                }
-                wqe->send.num_sgle = cpu_to_be32(wr->num_sge);
-                *flit_cnt = 4 + ((wr->num_sge) << 1);
+        plen = 0;
+        for (i = 0; i < wr->num_sge; i++) {
+                if ((plen + wr->sg_list[i].length) < plen)
+                        return -EMSGSIZE;
+
+                plen += wr->sg_list[i].length;
+                wqe->send.sgl[i].stag = cpu_to_be32(wr->sg_list[i].lkey);
+                wqe->send.sgl[i].len = cpu_to_be32(wr->sg_list[i].length);
+                wqe->send.sgl[i].to = cpu_to_be64(wr->sg_list[i].addr);
         }
+        wqe->send.num_sgle = cpu_to_be32(wr->num_sge);
+        *flit_cnt = 4 + ((wr->num_sge) << 1);
         wqe->send.plen = cpu_to_be32(plen);
         return 0;
 }
 
-static int iwch_build_rdma_write(union t3_wr *wqe, struct ib_send_wr *wr,
+static int build_rdma_write(union t3_wr *wqe, struct ib_send_wr *wr,
                                  u8 *flit_cnt)
 {
         int i;
@@ -137,15 +123,18 @@ static int iwch_build_rdma_write(union t3_wr *wqe, struct ib_send_wr *wr,
         return 0;
 }
 
-static int iwch_build_rdma_read(union t3_wr *wqe, struct ib_send_wr *wr,
+static int build_rdma_read(union t3_wr *wqe, struct ib_send_wr *wr,
                                 u8 *flit_cnt)
 {
         if (wr->num_sge > 1)
                 return -EINVAL;
         wqe->read.rdmaop = T3_READ_REQ;
+        if (wr->opcode == IB_WR_RDMA_READ_WITH_INV)
+                wqe->read.local_inv = 1;
+        else
+                wqe->read.local_inv = 0;
         wqe->read.reserved[0] = 0;
         wqe->read.reserved[1] = 0;
-        wqe->read.reserved[2] = 0;
         wqe->read.rem_stag = cpu_to_be32(wr->wr.rdma.rkey);
         wqe->read.rem_to = cpu_to_be64(wr->wr.rdma.remote_addr);
         wqe->read.local_stag = cpu_to_be32(wr->sg_list[0].lkey);
@@ -155,6 +144,57 @@ static int iwch_build_rdma_read(union t3_wr *wqe, struct ib_send_wr *wr,
         return 0;
 }
 
+static int build_fastreg(union t3_wr *wqe, struct ib_send_wr *wr,
+                                u8 *flit_cnt, int *wr_cnt, struct t3_wq *wq)
+{
+        int i;
+        __be64 *p;
+
+        if (wr->wr.fast_reg.page_list_len > T3_MAX_FASTREG_DEPTH)
+                return -EINVAL;
+        *wr_cnt = 1;
+        wqe->fastreg.stag = cpu_to_be32(wr->wr.fast_reg.rkey);
+        wqe->fastreg.len = cpu_to_be32(wr->wr.fast_reg.length);
+        wqe->fastreg.va_base_hi = cpu_to_be32(wr->wr.fast_reg.iova_start >> 32);
+        wqe->fastreg.va_base_lo_fbo =
+                                cpu_to_be32(wr->wr.fast_reg.iova_start & 0xffffffff);
+        wqe->fastreg.page_type_perms = cpu_to_be32(
+                V_FR_PAGE_COUNT(wr->wr.fast_reg.page_list_len) |
+                V_FR_PAGE_SIZE(wr->wr.fast_reg.page_shift-12) |
+                V_FR_TYPE(TPT_VATO) |
+                V_FR_PERMS(iwch_ib_to_tpt_access(wr->wr.fast_reg.access_flags)));
+        p = &wqe->fastreg.pbl_addrs[0];
+        for (i = 0; i < wr->wr.fast_reg.page_list_len; i++, p++) {
+
+                /* If we need a 2nd WR, then set it up */
+                if (i == T3_MAX_FASTREG_FRAG) {
+                        *wr_cnt = 2;
+                        wqe = (union t3_wr *)(wq->queue +
+                                Q_PTR2IDX((wq->wptr+1), wq->size_log2));
+                        build_fw_riwrh((void *)wqe, T3_WR_FASTREG, 0,
+                               Q_GENBIT(wq->wptr + 1, wq->size_log2),
+                               0, 1 + wr->wr.fast_reg.page_list_len - T3_MAX_FASTREG_FRAG,
+                               T3_EOP);
+
+                        p = &wqe->pbl_frag.pbl_addrs[0];
+                }
+                *p = cpu_to_be64((u64)wr->wr.fast_reg.page_list->page_list[i]);
+        }
+        *flit_cnt = 5 + wr->wr.fast_reg.page_list_len;
+        if (*flit_cnt > 15)
+                *flit_cnt = 15;
+        return 0;
+}
+
+static int build_inv_stag(union t3_wr *wqe, struct ib_send_wr *wr,
+                                u8 *flit_cnt)
+{
+        wqe->local_inv.stag = cpu_to_be32(wr->ex.invalidate_rkey);
+        wqe->local_inv.reserved = 0;
+        *flit_cnt = sizeof(struct t3_local_inv_wr) >> 3;
+        return 0;
+}
+
 /*
  * TBD: this is going to be moved to firmware. Missing pdid/qpid check for now.
  */
@@ -205,23 +245,106 @@ static int iwch_sgl2pbl_map(struct iwch_dev *rhp, struct ib_sge *sg_list,
         return 0;
 }
 
-static int iwch_build_rdma_recv(struct iwch_dev *rhp, union t3_wr *wqe,
+static int build_rdma_recv(struct iwch_qp *qhp, union t3_wr *wqe,
                                 struct ib_recv_wr *wr)
 {
-        int i;
-        if (wr->num_sge > T3_MAX_SGE)
-                return -EINVAL;
+        int i, err = 0;
+        u32 pbl_addr[T3_MAX_SGE];
+        u8 page_size[T3_MAX_SGE];
+
+        err = iwch_sgl2pbl_map(qhp->rhp, wr->sg_list, wr->num_sge, pbl_addr,
+                               page_size);
+        if (err)
+                return err;
+        wqe->recv.pagesz[0] = page_size[0];
+        wqe->recv.pagesz[1] = page_size[1];
+        wqe->recv.pagesz[2] = page_size[2];
+        wqe->recv.pagesz[3] = page_size[3];
         wqe->recv.num_sgle = cpu_to_be32(wr->num_sge);
         for (i = 0; i < wr->num_sge; i++) {
                 wqe->recv.sgl[i].stag = cpu_to_be32(wr->sg_list[i].lkey);
                 wqe->recv.sgl[i].len = cpu_to_be32(wr->sg_list[i].length);
+
+                /* to in the WQE == the offset into the page */
+                wqe->recv.sgl[i].to = cpu_to_be64(((u32) wr->sg_list[i].addr) %
+                                (1UL << (12 + page_size[i])));
+
+                /* pbl_addr is the adapters address in the PBL */
+                wqe->recv.pbl_addr[i] = cpu_to_be32(pbl_addr[i]);
+        }
+        for (; i < T3_MAX_SGE; i++) {
+                wqe->recv.sgl[i].stag = 0;
+                wqe->recv.sgl[i].len = 0;
+                wqe->recv.sgl[i].to = 0;
+                wqe->recv.pbl_addr[i] = 0;
+        }
+        qhp->wq.rq[Q_PTR2IDX(qhp->wq.rq_wptr,
+                             qhp->wq.rq_size_log2)].wr_id = wr->wr_id;
+        qhp->wq.rq[Q_PTR2IDX(qhp->wq.rq_wptr,
+                             qhp->wq.rq_size_log2)].pbl_addr = 0;
+        return 0;
+}
+
+static int build_zero_stag_recv(struct iwch_qp *qhp, union t3_wr *wqe,
+                                struct ib_recv_wr *wr)
+{
+        int i;
+        u32 pbl_addr;
+        u32 pbl_offset;
+
+
+        /*
+         * The T3 HW requires the PBL in the HW recv descriptor to reference
+         * a PBL entry.  So we allocate the max needed PBL memory here and pass
+         * it to the uP in the recv WR.  The uP will build the PBL and setup
+         * the HW recv descriptor.
+         */
+        pbl_addr = cxio_hal_pblpool_alloc(&qhp->rhp->rdev, T3_STAG0_PBL_SIZE);
+        if (!pbl_addr)
+                return -ENOMEM;
+
+        /*
+         * Compute the 8B aligned offset.
+         */
+        pbl_offset = (pbl_addr - qhp->rhp->rdev.rnic_info.pbl_base) >> 3;
+
+        wqe->recv.num_sgle = cpu_to_be32(wr->num_sge);
+
+        for (i = 0; i < wr->num_sge; i++) {
+
+                /*
+                 * Use a 128MB page size. This and an imposed 128MB
+                 * sge length limit allows us to require only a 2-entry HW
+                 * PBL for each SGE.  This restriction is acceptable since
+                 * since it is not possible to allocate 128MB of contiguous
+                 * DMA coherent memory!
+                 */
+                if (wr->sg_list[i].length > T3_STAG0_MAX_PBE_LEN)
+                        return -EINVAL;
+                wqe->recv.pagesz[i] = T3_STAG0_PAGE_SHIFT;
+
+                /*
+                 * T3 restricts a recv to all zero-stag or all non-zero-stag.
+                 */
+                if (wr->sg_list[i].lkey != 0)
+                        return -EINVAL;
+                wqe->recv.sgl[i].stag = 0;
+                wqe->recv.sgl[i].len = cpu_to_be32(wr->sg_list[i].length);
                 wqe->recv.sgl[i].to = cpu_to_be64(wr->sg_list[i].addr);
+                wqe->recv.pbl_addr[i] = cpu_to_be32(pbl_offset);
+                pbl_offset += 2;
         }
         for (; i < T3_MAX_SGE; i++) {
+                wqe->recv.pagesz[i] = 0;
                 wqe->recv.sgl[i].stag = 0;
                 wqe->recv.sgl[i].len = 0;
                 wqe->recv.sgl[i].to = 0;
+                wqe->recv.pbl_addr[i] = 0;
         }
+        qhp->wq.rq[Q_PTR2IDX(qhp->wq.rq_wptr,
+                             qhp->wq.rq_size_log2)].wr_id = wr->wr_id;
+        qhp->wq.rq[Q_PTR2IDX(qhp->wq.rq_wptr,
+                             qhp->wq.rq_size_log2)].pbl_addr = pbl_addr;
         return 0;
 }
 
@@ -238,6 +361,7 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
         u32 num_wrs;
         unsigned long flag;
         struct t3_swsq *sqp;
+        int wr_cnt = 1;
 
         qhp = to_iwch_qp(ibqp);
         spin_lock_irqsave(&qhp->lock, flag);
@@ -262,33 +386,45 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                 t3_wr_flags = 0;
                 if (wr->send_flags & IB_SEND_SOLICITED)
                         t3_wr_flags |= T3_SOLICITED_EVENT_FLAG;
-                if (wr->send_flags & IB_SEND_FENCE)
-                        t3_wr_flags |= T3_READ_FENCE_FLAG;
                 if (wr->send_flags & IB_SEND_SIGNALED)
                         t3_wr_flags |= T3_COMPLETION_FLAG;
                 sqp = qhp->wq.sq +
                       Q_PTR2IDX(qhp->wq.sq_wptr, qhp->wq.sq_size_log2);
                 switch (wr->opcode) {
                 case IB_WR_SEND:
-                case IB_WR_SEND_WITH_IMM:
+                case IB_WR_SEND_WITH_INV:
+                        if (wr->send_flags & IB_SEND_FENCE)
+                                t3_wr_flags |= T3_READ_FENCE_FLAG;
                         t3_wr_opcode = T3_WR_SEND;
-                        err = iwch_build_rdma_send(wqe, wr, &t3_wr_flit_cnt);
+                        err = build_rdma_send(wqe, wr, &t3_wr_flit_cnt);
                         break;
                 case IB_WR_RDMA_WRITE:
                 case IB_WR_RDMA_WRITE_WITH_IMM:
                         t3_wr_opcode = T3_WR_WRITE;
-                        err = iwch_build_rdma_write(wqe, wr, &t3_wr_flit_cnt);
+                        err = build_rdma_write(wqe, wr, &t3_wr_flit_cnt);
                         break;
                 case IB_WR_RDMA_READ:
+                case IB_WR_RDMA_READ_WITH_INV:
                         t3_wr_opcode = T3_WR_READ;
                         t3_wr_flags = 0; /* T3 reads are always signaled */
-                        err = iwch_build_rdma_read(wqe, wr, &t3_wr_flit_cnt);
+                        err = build_rdma_read(wqe, wr, &t3_wr_flit_cnt);
                         if (err)
                                 break;
                         sqp->read_len = wqe->read.local_len;
                         if (!qhp->wq.oldest_read)
                                 qhp->wq.oldest_read = sqp;
                         break;
+                case IB_WR_FAST_REG_MR:
+                        t3_wr_opcode = T3_WR_FASTREG;
+                        err = build_fastreg(wqe, wr, &t3_wr_flit_cnt,
+                                                 &wr_cnt, &qhp->wq);
+                        break;
+                case IB_WR_LOCAL_INV:
+                        if (wr->send_flags & IB_SEND_FENCE)
+                                t3_wr_flags |= T3_LOCAL_FENCE_FLAG;
+                        t3_wr_opcode = T3_WR_INV_STAG;
+                        err = build_inv_stag(wqe, wr, &t3_wr_flit_cnt);
+                        break;
                 default:
                         PDBG("%s post of type=%d TBD!\n", __func__,
                              wr->opcode);
@@ -307,14 +443,15 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 
                 build_fw_riwrh((void *) wqe, t3_wr_opcode, t3_wr_flags,
                                Q_GENBIT(qhp->wq.wptr, qhp->wq.size_log2),
-                               0, t3_wr_flit_cnt);
+                               0, t3_wr_flit_cnt,
+                               (wr_cnt == 1) ? T3_SOPEOP : T3_SOP);
                 PDBG("%s cookie 0x%llx wq idx 0x%x swsq idx %ld opcode %d\n",
                      __func__, (unsigned long long) wr->wr_id, idx,
                      Q_PTR2IDX(qhp->wq.sq_wptr, qhp->wq.sq_size_log2),
                      sqp->opcode);
                 wr = wr->next;
                 num_wrs--;
-                ++(qhp->wq.wptr);
+                qhp->wq.wptr += wr_cnt;
                 ++(qhp->wq.sq_wptr);
         }
         spin_unlock_irqrestore(&qhp->lock, flag);
@@ -345,21 +482,27 @@ int iwch_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
                 return -EINVAL;
         }
         while (wr) {
+                if (wr->num_sge > T3_MAX_SGE) {
+                        err = -EINVAL;
+                        *bad_wr = wr;
+                        break;
+                }
                 idx = Q_PTR2IDX(qhp->wq.wptr, qhp->wq.size_log2);
                 wqe = (union t3_wr *) (qhp->wq.queue + idx);
                 if (num_wrs)
-                        err = iwch_build_rdma_recv(qhp->rhp, wqe, wr);
+                        if (wr->sg_list[0].lkey)
+                                err = build_rdma_recv(qhp, wqe, wr);
+                        else
+                                err = build_zero_stag_recv(qhp, wqe, wr);
                 else
                         err = -ENOMEM;
                 if (err) {
                         *bad_wr = wr;
                         break;
                 }
-                qhp->wq.rq[Q_PTR2IDX(qhp->wq.rq_wptr, qhp->wq.rq_size_log2)] =
-                        wr->wr_id;
                 build_fw_riwrh((void *) wqe, T3_WR_RCV, T3_COMPLETION_FLAG,
                                Q_GENBIT(qhp->wq.wptr, qhp->wq.size_log2),
-                               0, sizeof(struct t3_receive_wr) >> 3);
+                               0, sizeof(struct t3_receive_wr) >> 3, T3_SOPEOP);
                 PDBG("%s cookie 0x%llx idx 0x%x rq_wptr 0x%x rw_rptr 0x%x "
                      "wqe %p \n", __func__, (unsigned long long) wr->wr_id,
                      idx, qhp->wq.rq_wptr, qhp->wq.rq_rptr, wqe);
@@ -419,10 +562,10 @@ int iwch_bind_mw(struct ib_qp *qp,
         sgl.lkey = mw_bind->mr->lkey;
         sgl.length = mw_bind->length;
         wqe->bind.reserved = 0;
-        wqe->bind.type = T3_VA_BASED_TO;
+        wqe->bind.type = TPT_VATO;
 
         /* TBD: check perms */
-        wqe->bind.perms = iwch_ib_to_mwbind_access(mw_bind->mw_access_flags);
+        wqe->bind.perms = iwch_ib_to_tpt_access(mw_bind->mw_access_flags);
         wqe->bind.mr_stag = cpu_to_be32(mw_bind->mr->lkey);
         wqe->bind.mw_stag = cpu_to_be32(mw->rkey);
         wqe->bind.mw_len = cpu_to_be32(mw_bind->length);
@@ -430,7 +573,7 @@ int iwch_bind_mw(struct ib_qp *qp,
         err = iwch_sgl2pbl_map(rhp, &sgl, 1, &pbl_addr, &page_size);
         if (err) {
                 spin_unlock_irqrestore(&qhp->lock, flag);
-                return err;
+                return err;
         }
         wqe->send.wrid.id0.hi = qhp->wq.sq_wptr;
         sqp = qhp->wq.sq + Q_PTR2IDX(qhp->wq.sq_wptr, qhp->wq.sq_size_log2);
@@ -441,10 +584,9 @@ int iwch_bind_mw(struct ib_qp *qp,
         sqp->signaled = (mw_bind->send_flags & IB_SEND_SIGNALED);
         wqe->bind.mr_pbl_addr = cpu_to_be32(pbl_addr);
         wqe->bind.mr_pagesz = page_size;
-        wqe->flit[T3_SQ_COOKIE_FLIT] = mw_bind->wr_id;
         build_fw_riwrh((void *)wqe, T3_WR_BIND, t3_wr_flags,
                        Q_GENBIT(qhp->wq.wptr, qhp->wq.size_log2), 0,
-                                sizeof(struct t3_bind_mw_wr) >> 3);
+                       sizeof(struct t3_bind_mw_wr) >> 3, T3_SOPEOP);
         ++(qhp->wq.wptr);
         ++(qhp->wq.sq_wptr);
         spin_unlock_irqrestore(&qhp->lock, flag);
@@ -758,7 +900,8 @@ static int rdma_init(struct iwch_dev *rhp, struct iwch_qp *qhp,
         init_attr.qp_dma_size = (1UL << qhp->wq.size_log2);
         init_attr.rqe_count = iwch_rqes_posted(qhp);
         init_attr.flags = qhp->attr.mpa_attr.initiator ? MPA_INITIATOR : 0;
-        init_attr.flags |= capable(CAP_NET_BIND_SERVICE) ? PRIV_QP : 0;
+        if (!qhp->ibqp.uobject)
+                init_attr.flags |= PRIV_QP;
         if (peer2peer) {
                 init_attr.rtr_type = RTR_READ;
                 if (init_attr.ord == 0 && qhp->attr.mpa_attr.initiator)
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index ce1ab0571be..0792d930c48 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -531,7 +531,7 @@ void ehca_process_eq(struct ehca_shca *shca, int is_irq)
 {
         struct ehca_eq *eq = &shca->eq;
         struct ehca_eqe_cache_entry *eqe_cache = eq->eqe_cache;
-        u64 eqe_value;
+        u64 eqe_value, ret;
         unsigned long flags;
         int eqe_cnt, i;
         int eq_empty = 0;
@@ -583,8 +583,13 @@ void ehca_process_eq(struct ehca_shca *shca, int is_irq)
                         ehca_dbg(&shca->ib_device,
                                  "No eqe found for irq event");
                 goto unlock_irq_spinlock;
-        } else if (!is_irq)
+        } else if (!is_irq) {
+                ret = hipz_h_eoi(eq->ist);
+                if (ret != H_SUCCESS)
+                        ehca_err(&shca->ib_device,
+                                 "bad return code EOI -rc = %ld\n", ret);
                 ehca_dbg(&shca->ib_device, "deadman found %x eqe", eqe_cnt);
+        }
         if (unlikely(eqe_cnt == EHCA_EQE_CACHE_SIZE))
                 ehca_dbg(&shca->ib_device, "too many eqes for one irq event");
         /* enable irq for new packets */
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
index 482103eb6ea..598844d2edc 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -923,6 +923,7 @@ static struct of_device_id ehca_device_table[] =
         },
         {},
 };
+MODULE_DEVICE_TABLE(of, ehca_device_table);
 
 static struct of_platform_driver ehca_driver = {
         .name        = "ehca",
diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c
index f093b0033da..dd9bc68f1c7 100644
--- a/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ b/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -544,8 +544,16 @@ int ehca_post_recv(struct ib_qp *qp,
                    struct ib_recv_wr *recv_wr,
                    struct ib_recv_wr **bad_recv_wr)
 {
-        return internal_post_recv(container_of(qp, struct ehca_qp, ib_qp),
-                                  qp->device, recv_wr, bad_recv_wr);
+        struct ehca_qp *my_qp = container_of(qp, struct ehca_qp, ib_qp);
+
+        /* Reject WR if QP is in RESET state */
+        if (unlikely(my_qp->state == IB_QPS_RESET)) {
+                ehca_err(qp->device, "Invalid QP state  qp_state=%d qpn=%x",
+                         my_qp->state, qp->qp_num);
+                return -EINVAL;
+        }
+
+        return internal_post_recv(my_qp, qp->device, recv_wr, bad_recv_wr);
 }
 
 int ehca_post_srq_recv(struct ib_srq *srq,
@@ -681,7 +689,7 @@ poll_cq_one_read_cqe:
         wc->dlid_path_bits = cqe->dlid;
         wc->src_qp = cqe->remote_qp_number;
         wc->wc_flags = cqe->w_completion_flags;
-        wc->imm_data = cpu_to_be32(cqe->immediate_data);
+        wc->ex.imm_data = cpu_to_be32(cqe->immediate_data);
         wc->sl = cqe->service_level;
 
 poll_cq_one_exit0:
diff --git a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/infiniband/hw/ehca/hcp_if.c
index 5245e13c3a3..415d3a465de 100644
--- a/drivers/infiniband/hw/ehca/hcp_if.c
+++ b/drivers/infiniband/hw/ehca/hcp_if.c
@@ -933,3 +933,13 @@ u64 hipz_h_error_data(const struct ipz_adapter_handle adapter_handle,
                                        r_cb,
                                        0, 0, 0, 0);
 }
+
+u64 hipz_h_eoi(int irq)
+{
+        unsigned long xirr;
+
+        iosync();
+        xirr = (0xffULL << 24) | irq;
+
+        return plpar_hcall_norets(H_EOI, xirr);
+}
diff --git a/drivers/infiniband/hw/ehca/hcp_if.h b/drivers/infiniband/hw/ehca/hcp_if.h
index 60ce02b7066..2c3c6e0ea5c 100644
--- a/drivers/infiniband/hw/ehca/hcp_if.h
+++ b/drivers/infiniband/hw/ehca/hcp_if.h
@@ -260,5 +260,6 @@ u64 hipz_h_error_data(const struct ipz_adapter_handle adapter_handle,
                       const u64 ressource_handle,
                       void *rblock,
                       unsigned long *byte_count);
+u64 hipz_h_eoi(int irq);
 
 #endif /* __HCP_IF_H__ */
diff --git a/drivers/infiniband/hw/ipath/ipath_cq.c b/drivers/infiniband/hw/ipath/ipath_cq.c
index a03bd28d9b4..d385e4168c9 100644
--- a/drivers/infiniband/hw/ipath/ipath_cq.c
+++ b/drivers/infiniband/hw/ipath/ipath_cq.c
@@ -82,7 +82,7 @@ void ipath_cq_enter(struct ipath_cq *cq, struct ib_wc *entry, int solicited)
                 wc->uqueue[head].opcode = entry->opcode;
                 wc->uqueue[head].vendor_err = entry->vendor_err;
                 wc->uqueue[head].byte_len = entry->byte_len;
-                wc->uqueue[head].imm_data = (__u32 __force)entry->imm_data;
+                wc->uqueue[head].ex.imm_data = (__u32 __force) entry->ex.imm_data;
                 wc->uqueue[head].qp_num = entry->qp->qp_num;
                 wc->uqueue[head].src_qp = entry->src_qp;
                 wc->uqueue[head].wc_flags = entry->wc_flags;
diff --git a/drivers/infiniband/hw/ipath/ipath_iba7220.c b/drivers/infiniband/hw/ipath/ipath_iba7220.c
index 8eee7830f04..fb70712ac85 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba7220.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba7220.c
@@ -2228,8 +2228,8 @@ static void ipath_autoneg_send(struct ipath_devdata *dd, int which)
                 0xffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
                 0x40000001, 0x1388, 0x15e, /* rest 0's */
                 };
-        dcnt = sizeof(madpayload_start)/sizeof(madpayload_start[0]);
-        hcnt = sizeof(hdr)/sizeof(hdr[0]);
+        dcnt = ARRAY_SIZE(madpayload_start);
+        hcnt = ARRAY_SIZE(hdr);
         if (!swapped) {
                 /* for maintainability, do it at runtime */
                 for (i = 0; i < hcnt; i++) {
diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c b/drivers/infiniband/hw/ipath/ipath_mad.c
index 5f9315d77a4..be4fc9ada8e 100644
--- a/drivers/infiniband/hw/ipath/ipath_mad.c
+++ b/drivers/infiniband/hw/ipath/ipath_mad.c
@@ -111,9 +111,9 @@ static int recv_subn_get_nodeinfo(struct ib_smp *smp,
         nip->revision = cpu_to_be32((majrev << 16) | minrev);
         nip->local_port_num = port;
         vendor = dd->ipath_vendorid;
-        nip->vendor_id[0] = 0;
-        nip->vendor_id[1] = vendor >> 8;
-        nip->vendor_id[2] = vendor;
+        nip->vendor_id[0] = IPATH_SRC_OUI_1;
+        nip->vendor_id[1] = IPATH_SRC_OUI_2;
+        nip->vendor_id[2] = IPATH_SRC_OUI_3;
 
         return reply(smp);
 }
diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
index 108df667d2e..97710522624 100644
--- a/drivers/infiniband/hw/ipath/ipath_rc.c
+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
@@ -1703,11 +1703,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
         case OP(SEND_LAST_WITH_IMMEDIATE):
         send_last_imm:
                 if (header_in_data) {
-                        wc.imm_data = *(__be32 *) data;
+                        wc.ex.imm_data = *(__be32 *) data;
                         data += sizeof(__be32);
                 } else {
                         /* Immediate data comes after BTH */
-                        wc.imm_data = ohdr->u.imm_data;
+                        wc.ex.imm_data = ohdr->u.imm_data;
                 }
                 hdrsize += 4;
                 wc.wc_flags = IB_WC_WITH_IMM;
diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
index a4b5521567f..af051f75766 100644
--- a/drivers/infiniband/hw/ipath/ipath_ruc.c
+++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
@@ -331,7 +331,7 @@ again:
         switch (wqe->wr.opcode) {
         case IB_WR_SEND_WITH_IMM:
                 wc.wc_flags = IB_WC_WITH_IMM;
-                wc.imm_data = wqe->wr.ex.imm_data;
+                wc.ex.imm_data = wqe->wr.ex.imm_data;
                 /* FALLTHROUGH */
         case IB_WR_SEND:
                 if (!ipath_get_rwqe(qp, 0))
@@ -342,7 +342,7 @@ again:
                 if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_WRITE)))
                         goto inv_err;
                 wc.wc_flags = IB_WC_WITH_IMM;
-                wc.imm_data = wqe->wr.ex.imm_data;
+                wc.ex.imm_data = wqe->wr.ex.imm_data;
                 if (!ipath_get_rwqe(qp, 1))
                         goto rnr_nak;
                 /* FALLTHROUGH */
diff --git a/drivers/infiniband/hw/ipath/ipath_uc.c b/drivers/infiniband/hw/ipath/ipath_uc.c
index 0596ec16fcb..82cc588b8bf 100644
--- a/drivers/infiniband/hw/ipath/ipath_uc.c
+++ b/drivers/infiniband/hw/ipath/ipath_uc.c
@@ -379,11 +379,11 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
         case OP(SEND_LAST_WITH_IMMEDIATE):
         send_last_imm:
                 if (header_in_data) {
-                        wc.imm_data = *(__be32 *) data;
+                        wc.ex.imm_data = *(__be32 *) data;
                         data += sizeof(__be32);
                 } else {
                         /* Immediate data comes after BTH */
-                        wc.imm_data = ohdr->u.imm_data;
+                        wc.ex.imm_data = ohdr->u.imm_data;
                 }
                 hdrsize += 4;
                 wc.wc_flags = IB_WC_WITH_IMM;
@@ -483,11 +483,11 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
         case OP(RDMA_WRITE_LAST_WITH_IMMEDIATE):
         rdma_last_imm:
                 if (header_in_data) {
-                        wc.imm_data = *(__be32 *) data;
+                        wc.ex.imm_data = *(__be32 *) data;
                         data += sizeof(__be32);
                 } else {
                         /* Immediate data comes after BTH */
-                        wc.imm_data = ohdr->u.imm_data;
+                        wc.ex.imm_data = ohdr->u.imm_data;
                 }
                 hdrsize += 4;
                 wc.wc_flags = IB_WC_WITH_IMM;
diff --git a/drivers/infiniband/hw/ipath/ipath_ud.c b/drivers/infiniband/hw/ipath/ipath_ud.c
index 77ca8ca74e7..36aa242c487 100644
--- a/drivers/infiniband/hw/ipath/ipath_ud.c
+++ b/drivers/infiniband/hw/ipath/ipath_ud.c
@@ -96,7 +96,7 @@ static void ipath_ud_loopback(struct ipath_qp *sqp, struct ipath_swqe *swqe)
 
         if (swqe->wr.opcode == IB_WR_SEND_WITH_IMM) {
                 wc.wc_flags = IB_WC_WITH_IMM;
-                wc.imm_data = swqe->wr.ex.imm_data;
+                wc.ex.imm_data = swqe->wr.ex.imm_data;
         }
 
         /*
@@ -492,14 +492,14 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
         if (qp->ibqp.qp_num > 1 &&
             opcode == IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE) {
                 if (header_in_data) {
-                        wc.imm_data = *(__be32 *) data;
+                        wc.ex.imm_data = *(__be32 *) data;
                         data += sizeof(__be32);
                 } else
-                        wc.imm_data = ohdr->u.ud.imm_data;
+                        wc.ex.imm_data = ohdr->u.ud.imm_data;
                 wc.wc_flags = IB_WC_WITH_IMM;
                 hdrsize += sizeof(u32);
         } else if (opcode == IB_OPCODE_UD_SEND_ONLY) {
-                wc.imm_data = 0;
+                wc.ex.imm_data = 0;
                 wc.wc_flags = 0;
         } else {
                 dev->n_pkt_drops++;
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index 7779165b2c2..55c71882882 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -35,6 +35,7 @@
 #include <rdma/ib_user_verbs.h>
 #include <linux/io.h>
 #include <linux/utsname.h>
+#include <linux/rculist.h>
 
 #include "ipath_kernel.h"
 #include "ipath_verbs.h"
@@ -1497,7 +1498,8 @@ static int ipath_query_device(struct ib_device *ibdev,
                 IB_DEVICE_SYS_IMAGE_GUID | IB_DEVICE_RC_RNR_NAK_GEN |
                 IB_DEVICE_PORT_ACTIVE_EVENT | IB_DEVICE_SRQ_RESIZE;
         props->page_size_cap = PAGE_SIZE;
-        props->vendor_id = dev->dd->ipath_vendorid;
+        props->vendor_id =
+                IPATH_SRC_OUI_1 << 16 | IPATH_SRC_OUI_2 << 8 | IPATH_SRC_OUI_3;
         props->vendor_part_id = dev->dd->ipath_deviceid;
         props->hw_ver = dev->dd->ipath_pcirev;
 
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
index 9e5abf9c309..d73e3223287 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
@@ -31,8 +31,7 @@
  * SOFTWARE.
  */
 
-#include <linux/list.h>
-#include <linux/rcupdate.h>
+#include <linux/rculist.h>
 
 #include "ipath_verbs.h"
 
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 4521319b140..299f20832ab 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -663,18 +663,18 @@ repoll:
 
                 switch (cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) {
                 case MLX4_RECV_OPCODE_RDMA_WRITE_IMM:
-                        wc->opcode   = IB_WC_RECV_RDMA_WITH_IMM;
-                        wc->wc_flags = IB_WC_WITH_IMM;
-                        wc->imm_data = cqe->immed_rss_invalid;
+                        wc->opcode      = IB_WC_RECV_RDMA_WITH_IMM;
+                        wc->wc_flags    = IB_WC_WITH_IMM;
+                        wc->ex.imm_data = cqe->immed_rss_invalid;
                         break;
                 case MLX4_RECV_OPCODE_SEND:
                         wc->opcode   = IB_WC_RECV;
                         wc->wc_flags = 0;
                         break;
                 case MLX4_RECV_OPCODE_SEND_IMM:
-                        wc->opcode   = IB_WC_RECV;
-                        wc->wc_flags = IB_WC_WITH_IMM;
-                        wc->imm_data = cqe->immed_rss_invalid;
+                        wc->opcode      = IB_WC_RECV;
+                        wc->wc_flags    = IB_WC_WITH_IMM;
+                        wc->ex.imm_data = cqe->immed_rss_invalid;
                         break;
                 }
 
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 4c1e72fc8f5..cdca3a511e1 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -255,7 +255,8 @@ int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags,	u8 port_num,
                         return IB_MAD_RESULT_SUCCESS;
         } else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT ||
                    in_mad->mad_hdr.mgmt_class == MLX4_IB_VENDOR_CLASS1   ||
-                   in_mad->mad_hdr.mgmt_class == MLX4_IB_VENDOR_CLASS2) {
+                   in_mad->mad_hdr.mgmt_class == MLX4_IB_VENDOR_CLASS2   ||
+                   in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_CONG_MGMT) {
                 if (in_mad->mad_hdr.method  != IB_MGMT_METHOD_GET &&
                     in_mad->mad_hdr.method  != IB_MGMT_METHOD_SET)
                         return IB_MAD_RESULT_SUCCESS;
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 4d61e32866c..bcf50648fa1 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -90,7 +90,8 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
         props->device_cap_flags    = IB_DEVICE_CHANGE_PHY_PORT |
                 IB_DEVICE_PORT_ACTIVE_EVENT             |
                 IB_DEVICE_SYS_IMAGE_GUID                |
-                IB_DEVICE_RC_RNR_NAK_GEN;
+                IB_DEVICE_RC_RNR_NAK_GEN                |
+                IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
                 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
@@ -437,7 +438,9 @@ static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
 {
         return mlx4_multicast_attach(to_mdev(ibqp->device)->dev,
-                                     &to_mqp(ibqp)->mqp, gid->raw);
+                                     &to_mqp(ibqp)->mqp, gid->raw,
+                                     !!(to_mqp(ibqp)->flags &
+                                        MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK));
 }
 
 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 5cf994794d2..c4cf5b69eef 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -101,7 +101,8 @@ struct mlx4_ib_wq {
 };
 
 enum mlx4_ib_qp_flags {
-        MLX4_IB_QP_LSO          = 1 << 0
+        MLX4_IB_QP_LSO                          = 1 << 0,
+        MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK     = 1 << 1,
 };
 
 struct mlx4_ib_qp {
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index a80df22deae..89eb6cbe592 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -129,9 +129,10 @@ static void stamp_send_wqe(struct mlx4_ib_qp *qp, int n, int size)
         int ind;
         void *buf;
         __be32 stamp;
+        struct mlx4_wqe_ctrl_seg *ctrl;
 
-        s = roundup(size, 1U << qp->sq.wqe_shift);
         if (qp->sq_max_wqes_per_wr > 1) {
+                s = roundup(size, 1U << qp->sq.wqe_shift);
                 for (i = 0; i < s; i += 64) {
                         ind = (i >> qp->sq.wqe_shift) + n;
                         stamp = ind & qp->sq.wqe_cnt ? cpu_to_be32(0x7fffffff) :
@@ -141,7 +142,8 @@ static void stamp_send_wqe(struct mlx4_ib_qp *qp, int n, int size)
                         *wqe = stamp;
                 }
         } else {
-                buf = get_send_wqe(qp, n & (qp->sq.wqe_cnt - 1));
+                ctrl = buf = get_send_wqe(qp, n & (qp->sq.wqe_cnt - 1));
+                s = (ctrl->fence_size & 0x3f) << 4;
                 for (i = 64; i < s; i += 64) {
                         wqe = buf + i;
                         *wqe = cpu_to_be32(0xffffffff);
@@ -452,19 +454,8 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
         spin_lock_init(&qp->rq.lock);
 
         qp->state        = IB_QPS_RESET;
-        qp->atomic_rd_en = 0;
-        qp->resp_depth   = 0;
-
-        qp->rq.head         = 0;
-        qp->rq.tail         = 0;
-        qp->sq.head         = 0;
-        qp->sq.tail         = 0;
-        qp->sq_next_wqe     = 0;
-
         if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
                 qp->sq_signal_bits = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE);
-        else
-                qp->sq_signal_bits = 0;
 
         err = set_rq_size(dev, &init_attr->cap, !!pd->uobject, !!init_attr->srq, qp);
         if (err)
@@ -509,6 +500,9 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
         } else {
                 qp->sq_no_prefetch = 0;
 
+                if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)
+                        qp->flags |= MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK;
+
                 if (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO)
                         qp->flags |= MLX4_IB_QP_LSO;
 
@@ -682,10 +676,15 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
         struct mlx4_ib_qp *qp;
         int err;
 
-        /* We only support LSO, and only for kernel UD QPs. */
-        if (init_attr->create_flags & ~IB_QP_CREATE_IPOIB_UD_LSO)
+        /*
+         * We only support LSO and multicast loopback blocking, and
+         * only for kernel UD QPs.
+         */
+        if (init_attr->create_flags & ~(IB_QP_CREATE_IPOIB_UD_LSO |
+                                        IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK))
                 return ERR_PTR(-EINVAL);
-        if (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO &&
+
+        if (init_attr->create_flags &&
             (pd->uobject || init_attr->qp_type != IB_QPT_UD))
                 return ERR_PTR(-EINVAL);
 
@@ -694,7 +693,7 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
         case IB_QPT_UC:
         case IB_QPT_UD:
         {
-                qp = kmalloc(sizeof *qp, GFP_KERNEL);
+                qp = kzalloc(sizeof *qp, GFP_KERNEL);
                 if (!qp)
                         return ERR_PTR(-ENOMEM);
 
@@ -715,7 +714,7 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
                 if (pd->uobject)
                         return ERR_PTR(-EINVAL);
 
-                sqp = kmalloc(sizeof *sqp, GFP_KERNEL);
+                sqp = kzalloc(sizeof *sqp, GFP_KERNEL);
                 if (!sqp)
                         return ERR_PTR(-ENOMEM);
 
@@ -906,7 +905,8 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
                                attr->path_mtu);
                         goto out;
                 }
-                context->mtu_msgmax = (attr->path_mtu << 5) | 31;
+                context->mtu_msgmax = (attr->path_mtu << 5) |
+                        ilog2(dev->dev->caps.max_msg_sz);
         }
 
         if (qp->rq.wqe_cnt)
@@ -1063,6 +1063,8 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
                 for (i = 0; i < qp->sq.wqe_cnt; ++i) {
                         ctrl = get_send_wqe(qp, i);
                         ctrl->owner_opcode = cpu_to_be32(1 << 31);
+                        if (qp->sq_max_wqes_per_wr == 1)
+                                ctrl->fence_size = 1 << (qp->sq.wqe_shift - 4);
 
                         stamp_send_wqe(qp, i, 1 << qp->sq.wqe_shift);
                 }
@@ -1127,23 +1129,6 @@ out:
         return err;
 }
 
-static const struct ib_qp_attr mlx4_ib_qp_attr = { .port_num = 1 };
-static const int mlx4_ib_qp_attr_mask_table[IB_QPT_UD + 1] = {
-                [IB_QPT_UD]  = (IB_QP_PKEY_INDEX                |
-                                IB_QP_PORT                      |
-                                IB_QP_QKEY),
-                [IB_QPT_UC]  = (IB_QP_PKEY_INDEX                |
-                                IB_QP_PORT                      |
-                                IB_QP_ACCESS_FLAGS),
-                [IB_QPT_RC]  = (IB_QP_PKEY_INDEX                |
-                                IB_QP_PORT                      |
-                                IB_QP_ACCESS_FLAGS),
-                [IB_QPT_SMI] = (IB_QP_PKEY_INDEX                |
-                                IB_QP_QKEY),
-                [IB_QPT_GSI] = (IB_QP_PKEY_INDEX                |
-                                IB_QP_QKEY),
-};
-
 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
                       int attr_mask, struct ib_udata *udata)
 {
@@ -1186,15 +1171,6 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
                 goto out;
         }
 
-        if (cur_state == IB_QPS_RESET && new_state == IB_QPS_ERR) {
-                err = __mlx4_ib_modify_qp(ibqp, &mlx4_ib_qp_attr,
-                                          mlx4_ib_qp_attr_mask_table[ibqp->qp_type],
-                                          IB_QPS_RESET, IB_QPS_INIT);
-                if (err)
-                        goto out;
-                cur_state = IB_QPS_INIT;
-        }
-
         err = __mlx4_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state);
 
 out:
@@ -1865,6 +1841,13 @@ done:
 
         qp_init_attr->cap            = qp_attr->cap;
 
+        qp_init_attr->create_flags = 0;
+        if (qp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK)
+                qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK;
+
+        if (qp->flags & MLX4_IB_QP_LSO)
+                qp_init_attr->create_flags |= IB_QP_CREATE_IPOIB_UD_LSO;
+
 out:
         mutex_unlock(&qp->mutex);
         return err;
diff --git a/drivers/infiniband/hw/mthca/mthca_allocator.c b/drivers/infiniband/hw/mthca/mthca_allocator.c
index a7630670961..c5ccc2daab6 100644
--- a/drivers/infiniband/hw/mthca/mthca_allocator.c
+++ b/drivers/infiniband/hw/mthca/mthca_allocator.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_allocator.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/errno.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_av.c b/drivers/infiniband/hw/mthca/mthca_av.c
index 4b111a852ff..32f6c631545 100644
--- a/drivers/infiniband/hw/mthca/mthca_av.c
+++ b/drivers/infiniband/hw/mthca/mthca_av.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_av.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/string.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_catas.c b/drivers/infiniband/hw/mthca/mthca_catas.c
index e948158a28d..cc440f90000 100644
--- a/drivers/infiniband/hw/mthca/mthca_catas.c
+++ b/drivers/infiniband/hw/mthca/mthca_catas.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id$
  */
 
 #include <linux/jiffies.h>
@@ -128,7 +126,6 @@ static void handle_catas(struct mthca_dev *dev)
 static void poll_catas(unsigned long dev_ptr)
 {
         struct mthca_dev *dev = (struct mthca_dev *) dev_ptr;
-        unsigned long flags;
         int i;
 
         for (i = 0; i < dev->catas_err.size; ++i)
@@ -137,13 +134,8 @@ static void poll_catas(unsigned long dev_ptr)
                         return;
                 }
 
-        spin_lock_irqsave(&catas_lock, flags);
-        if (!dev->catas_err.stop)
-                mod_timer(&dev->catas_err.timer,
-                          jiffies + MTHCA_CATAS_POLL_INTERVAL);
-        spin_unlock_irqrestore(&catas_lock, flags);
-
-        return;
+        mod_timer(&dev->catas_err.timer,
+                  round_jiffies(jiffies + MTHCA_CATAS_POLL_INTERVAL));
 }
 
 void mthca_start_catas_poll(struct mthca_dev *dev)
@@ -151,7 +143,6 @@ void mthca_start_catas_poll(struct mthca_dev *dev)
         unsigned long addr;
 
         init_timer(&dev->catas_err.timer);
-        dev->catas_err.stop = 0;
         dev->catas_err.map  = NULL;
 
         addr = pci_resource_start(dev->pdev, 0) +
@@ -182,10 +173,6 @@ void mthca_start_catas_poll(struct mthca_dev *dev)
 
 void mthca_stop_catas_poll(struct mthca_dev *dev)
 {
-        spin_lock_irq(&catas_lock);
-        dev->catas_err.stop = 1;
-        spin_unlock_irq(&catas_lock);
-
         del_timer_sync(&dev->catas_err.timer);
 
         if (dev->catas_err.map) {
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index 54d230ee7d6..c33e1c53c79 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_cmd.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/completion.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.h b/drivers/infiniband/hw/mthca/mthca_cmd.h
index 8928ca4a932..6efd3265f24 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.h
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.h
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_cmd.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #ifndef MTHCA_CMD_H
diff --git a/drivers/infiniband/hw/mthca/mthca_config_reg.h b/drivers/infiniband/hw/mthca/mthca_config_reg.h
index afa56bfaab2..75671f75cac 100644
--- a/drivers/infiniband/hw/mthca/mthca_config_reg.h
+++ b/drivers/infiniband/hw/mthca/mthca_config_reg.h
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_config_reg.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #ifndef MTHCA_CONFIG_REG_H
diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c
index 20401d2ba6b..d9f4735c2b3 100644
--- a/drivers/infiniband/hw/mthca/mthca_cq.c
+++ b/drivers/infiniband/hw/mthca/mthca_cq.c
@@ -32,8 +32,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_cq.c 1369 2004-12-20 16:17:07Z roland $
  */
 
 #include <linux/hardirq.h>
@@ -622,13 +620,13 @@ static inline int mthca_poll_one(struct mthca_dev *dev,
                 case IB_OPCODE_SEND_LAST_WITH_IMMEDIATE:
                 case IB_OPCODE_SEND_ONLY_WITH_IMMEDIATE:
                         entry->wc_flags = IB_WC_WITH_IMM;
-                        entry->imm_data = cqe->imm_etype_pkey_eec;
+                        entry->ex.imm_data = cqe->imm_etype_pkey_eec;
                         entry->opcode = IB_WC_RECV;
                         break;
                 case IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE:
                 case IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE:
                         entry->wc_flags = IB_WC_WITH_IMM;
-                        entry->imm_data = cqe->imm_etype_pkey_eec;
+                        entry->ex.imm_data = cqe->imm_etype_pkey_eec;
                         entry->opcode = IB_WC_RECV_RDMA_WITH_IMM;
                         break;
                 default:
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h
index 7bc32f8e377..ee4d073c889 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -32,8 +32,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_dev.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #ifndef MTHCA_DEV_H
@@ -279,7 +277,6 @@ struct mthca_mcg_table {
 struct mthca_catas_err {
         u64                     addr;
         u32 __iomem            *map;
-        unsigned long           stop;
         u32                     size;
         struct timer_list       timer;
         struct list_head        list;
diff --git a/drivers/infiniband/hw/mthca/mthca_doorbell.h b/drivers/infiniband/hw/mthca/mthca_doorbell.h
index b374dc395be..14f51ef97d7 100644
--- a/drivers/infiniband/hw/mthca/mthca_doorbell.h
+++ b/drivers/infiniband/hw/mthca/mthca_doorbell.h
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_doorbell.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/types.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c
index 8bde7f98e58..4e36aa7cb3d 100644
--- a/drivers/infiniband/hw/mthca/mthca_eq.c
+++ b/drivers/infiniband/hw/mthca/mthca_eq.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_eq.c 1382 2004-12-24 02:21:02Z roland $
  */
 
 #include <linux/errno.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_mad.c b/drivers/infiniband/hw/mthca/mthca_mad.c
index 8b7e83e6e88..640449582ab 100644
--- a/drivers/infiniband/hw/mthca/mthca_mad.c
+++ b/drivers/infiniband/hw/mthca/mthca_mad.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_mad.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/string.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 200cf13fc9b..fb9f91b60f3 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
  */
 
 #include <linux/module.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_mcg.c b/drivers/infiniband/hw/mthca/mthca_mcg.c
index a8ad072be07..3f5f9487920 100644
--- a/drivers/infiniband/hw/mthca/mthca_mcg.c
+++ b/drivers/infiniband/hw/mthca/mthca_mcg.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_mcg.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/string.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index d5862e5d99a..1f7d1a29d2a 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id$
  */
 
 #include <linux/mm.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.h b/drivers/infiniband/hw/mthca/mthca_memfree.h
index a1ab06847b7..da9b8f9b884 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.h
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.h
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id$
  */
 
 #ifndef MTHCA_MEMFREE_H
diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
index 820205dec56..8489b1e81c0 100644
--- a/drivers/infiniband/hw/mthca/mthca_mr.c
+++ b/drivers/infiniband/hw/mthca/mthca_mr.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_mr.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/slab.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_pd.c b/drivers/infiniband/hw/mthca/mthca_pd.c
index c1e950764bd..266f14e4740 100644
--- a/drivers/infiniband/hw/mthca/mthca_pd.c
+++ b/drivers/infiniband/hw/mthca/mthca_pd.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_pd.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/errno.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_profile.c b/drivers/infiniband/hw/mthca/mthca_profile.c
index 605a8d57fac..d168c254061 100644
--- a/drivers/infiniband/hw/mthca/mthca_profile.c
+++ b/drivers/infiniband/hw/mthca/mthca_profile.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_profile.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/module.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_profile.h b/drivers/infiniband/hw/mthca/mthca_profile.h
index e76cb62d8e3..62b009cc873 100644
--- a/drivers/infiniband/hw/mthca/mthca_profile.h
+++ b/drivers/infiniband/hw/mthca/mthca_profile.h
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_profile.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #ifndef MTHCA_PROFILE_H
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index be34f99ca62..87ad889e367 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -32,8 +32,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_provider.c 4859 2006-01-09 21:55:10Z roland $
  */
 
 #include <rdma/ib_smi.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h
index 934bf954403..c621f8794b8 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.h
+++ b/drivers/infiniband/hw/mthca/mthca_provider.h
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_provider.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #ifndef MTHCA_PROVIDER_H
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index 09dc3614cf2..f5081bfde6d 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -31,8 +31,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_qp.c 1355 2004-12-17 15:23:43Z roland $
  */
 
 #include <linux/string.h>
@@ -850,23 +848,6 @@ out:
         return err;
 }
 
-static const struct ib_qp_attr dummy_init_attr = { .port_num = 1 };
-static const int dummy_init_attr_mask[] = {
-        [IB_QPT_UD]  = (IB_QP_PKEY_INDEX                |
-                        IB_QP_PORT                      |
-                        IB_QP_QKEY),
-        [IB_QPT_UC]  = (IB_QP_PKEY_INDEX                |
-                        IB_QP_PORT                      |
-                        IB_QP_ACCESS_FLAGS),
-        [IB_QPT_RC]  = (IB_QP_PKEY_INDEX                |
-                        IB_QP_PORT                      |
-                        IB_QP_ACCESS_FLAGS),
-        [IB_QPT_SMI] = (IB_QP_PKEY_INDEX                |
-                        IB_QP_QKEY),
-        [IB_QPT_GSI] = (IB_QP_PKEY_INDEX                |
-                        IB_QP_QKEY),
-};
-
 int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
                     struct ib_udata *udata)
 {
@@ -928,15 +909,6 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
                 goto out;
         }
 
-        if (cur_state == IB_QPS_RESET && new_state == IB_QPS_ERR) {
-                err = __mthca_modify_qp(ibqp, &dummy_init_attr,
-                                        dummy_init_attr_mask[ibqp->qp_type],
-                                        IB_QPS_RESET, IB_QPS_INIT);
-                if (err)
-                        goto out;
-                cur_state = IB_QPS_INIT;
-        }
-
         err = __mthca_modify_qp(ibqp, attr, attr_mask, cur_state, new_state);
 
 out:
@@ -1277,10 +1249,10 @@ static int mthca_set_qp_size(struct mthca_dev *dev, struct ib_qp_cap *cap,
                 return -EINVAL;
 
         /*
-         * For MLX transport we need 2 extra S/G entries:
+         * For MLX transport we need 2 extra send gather entries:
          * one for the header and one for the checksum at the end
          */
-        if (qp->transport == MLX && cap->max_recv_sge + 2 > dev->limits.max_sg)
+        if (qp->transport == MLX && cap->max_send_sge + 2 > dev->limits.max_sg)
                 return -EINVAL;
 
         if (mthca_is_memfree(dev)) {
diff --git a/drivers/infiniband/hw/mthca/mthca_reset.c b/drivers/infiniband/hw/mthca/mthca_reset.c
index 91934f2d9db..acb6817f606 100644
--- a/drivers/infiniband/hw/mthca/mthca_reset.c
+++ b/drivers/infiniband/hw/mthca/mthca_reset.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_reset.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/init.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c
index a5ffff6e102..4fabe62aab8 100644
--- a/drivers/infiniband/hw/mthca/mthca_srq.c
+++ b/drivers/infiniband/hw/mthca/mthca_srq.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_srq.c 3047 2005-08-10 03:59:35Z roland $
  */
 
 #include <linux/slab.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_uar.c b/drivers/infiniband/hw/mthca/mthca_uar.c
index 8b728486410..ca5900c96fc 100644
--- a/drivers/infiniband/hw/mthca/mthca_uar.c
+++ b/drivers/infiniband/hw/mthca/mthca_uar.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id$
  */
 
 #include <asm/page.h>           /* PAGE_SHIFT */
diff --git a/drivers/infiniband/hw/mthca/mthca_user.h b/drivers/infiniband/hw/mthca/mthca_user.h
index e1262c942db..5fe56e81073 100644
--- a/drivers/infiniband/hw/mthca/mthca_user.h
+++ b/drivers/infiniband/hw/mthca/mthca_user.h
@@ -29,7 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
  */
 
 #ifndef MTHCA_USER_H
diff --git a/drivers/infiniband/hw/mthca/mthca_wqe.h b/drivers/infiniband/hw/mthca/mthca_wqe.h
index b3551a8dea1..341a5ae881c 100644
--- a/drivers/infiniband/hw/mthca/mthca_wqe.h
+++ b/drivers/infiniband/hw/mthca/mthca_wqe.h
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: mthca_wqe.h 3047 2005-08-10 03:59:35Z roland $
  */
 
 #ifndef MTHCA_WQE_H
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
index a4e9269a29b..d2884e77809 100644
--- a/drivers/infiniband/hw/nes/nes.c
+++ b/drivers/infiniband/hw/nes/nes.c
@@ -328,7 +328,7 @@ void nes_rem_ref(struct ib_qp *ibqp)
                 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id);
                 u64temp = (u64)nesqp->nesqp_context_pbase;
                 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
-                nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+                nes_post_cqp_request(nesdev, cqp_request);
         }
 }
 
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index 61b46e9c7d2..39bd897b40c 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -94,9 +94,6 @@
 
 #define MAX_DPC_ITERATIONS               128
 
-#define NES_CQP_REQUEST_NO_DOORBELL_RING 0
-#define NES_CQP_REQUEST_RING_DOORBELL    1
-
 #define NES_DRV_OPT_ENABLE_MPA_VER_0     0x00000001
 #define NES_DRV_OPT_DISABLE_MPA_CRC      0x00000002
 #define NES_DRV_OPT_DISABLE_FIRST_WRITE  0x00000004
@@ -538,7 +535,11 @@ void nes_read_1G_phy_reg(struct nes_device *, u8, u8, u16 *);
 void nes_write_10G_phy_reg(struct nes_device *, u16, u8, u16, u16);
 void nes_read_10G_phy_reg(struct nes_device *, u8, u8, u16);
 struct nes_cqp_request *nes_get_cqp_request(struct nes_device *);
-void nes_post_cqp_request(struct nes_device *, struct nes_cqp_request *, int);
+void nes_free_cqp_request(struct nes_device *nesdev,
+                          struct nes_cqp_request *cqp_request);
+void nes_put_cqp_request(struct nes_device *nesdev,
+                         struct nes_cqp_request *cqp_request);
+void nes_post_cqp_request(struct nes_device *, struct nes_cqp_request *);
 int nes_arp_table(struct nes_device *, u32, u8 *, u32);
 void nes_mh_fix(unsigned long);
 void nes_clc(unsigned long);
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 9a4b40fae40..6aa531d5276 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -1603,7 +1603,6 @@ static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *cm_core,
                         return NULL;
                 }
 
-                memset(listener, 0, sizeof(struct nes_cm_listener));
                 listener->loc_addr = htonl(cm_info->loc_addr);
                 listener->loc_port = htons(cm_info->loc_port);
                 listener->reused_node = 0;
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index d3278f111ca..85f26d19a32 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -398,7 +398,7 @@ struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) {
         nesadapter->base_pd = 1;
 
         nesadapter->device_cap_flags =
-                IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW;
+                IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
 
         nesadapter->allocated_qps = (unsigned long *)&(((unsigned char *)nesadapter)
                         [(sizeof(struct nes_adapter)+(sizeof(unsigned long)-1))&(~(sizeof(unsigned long)-1))]);
@@ -2710,39 +2710,11 @@ static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
                                         barrier();
                                         cqp_request->request_done = 1;
                                         wake_up(&cqp_request->waitq);
-                                        if (atomic_dec_and_test(&cqp_request->refcount)) {
-                                                nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) freed.\n",
-                                                                cqp_request,
-                                                                le32_to_cpu(cqp_request->cqp_wqe.wqe_words[NES_CQP_WQE_OPCODE_IDX])&0x3f);
-                                                if (cqp_request->dynamic) {
-                                                        kfree(cqp_request);
-                                                } else {
-                                                        spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                                        list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                                        spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                                                }
-                                        }
-                                } else if (cqp_request->callback) {
-                                        /* Envoke the callback routine */
-                                        cqp_request->cqp_callback(nesdev, cqp_request);
-                                        if (cqp_request->dynamic) {
-                                                kfree(cqp_request);
-                                        } else {
-                                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                                        }
+                                        nes_put_cqp_request(nesdev, cqp_request);
                                 } else {
-                                        nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) freed.\n",
-                                                        cqp_request,
-                                                        le32_to_cpu(cqp_request->cqp_wqe.wqe_words[NES_CQP_WQE_OPCODE_IDX]) & 0x3f);
-                                        if (cqp_request->dynamic) {
-                                                kfree(cqp_request);
-                                        } else {
-                                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                                        }
+                                        if (cqp_request->callback)
+                                                cqp_request->cqp_callback(nesdev, cqp_request);
+                                        nes_free_cqp_request(nesdev, cqp_request);
                                 }
                         } else {
                                 wake_up(&nesdev->cqp.waitq);
@@ -3149,7 +3121,6 @@ int nes_manage_apbvt(struct nes_vnic *nesvnic, u32 accel_local_port,
 {
         struct nes_device *nesdev = nesvnic->nesdev;
         struct nes_hw_cqp_wqe *cqp_wqe;
-        unsigned long flags;
         struct nes_cqp_request *cqp_request;
         int ret = 0;
         u16 major_code;
@@ -3176,7 +3147,7 @@ int nes_manage_apbvt(struct nes_vnic *nesvnic, u32 accel_local_port,
         nes_debug(NES_DBG_QP, "Waiting for CQP completion for APBVT.\n");
 
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         if (add_port == NES_MANAGE_APBVT_ADD)
                 ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
@@ -3184,15 +3155,9 @@ int nes_manage_apbvt(struct nes_vnic *nesvnic, u32 accel_local_port,
         nes_debug(NES_DBG_QP, "Completed, ret=%u,  CQP Major:Minor codes = 0x%04X:0x%04X\n",
                         ret, cqp_request->major_code, cqp_request->minor_code);
         major_code = cqp_request->major_code;
-        if (atomic_dec_and_test(&cqp_request->refcount)) {
-                if (cqp_request->dynamic) {
-                        kfree(cqp_request);
-                } else {
-                        spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                        list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                        spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                }
-        }
+
+        nes_put_cqp_request(nesdev, cqp_request);
+
         if (!ret)
                 return -ETIME;
         else if (major_code)
@@ -3252,7 +3217,7 @@ void nes_manage_arp_cache(struct net_device *netdev, unsigned char *mac_addr,
                         nesdev->cqp.sq_head, nesdev->cqp.sq_tail);
 
         atomic_set(&cqp_request->refcount, 1);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 }
 
 
@@ -3262,7 +3227,6 @@ void nes_manage_arp_cache(struct net_device *netdev, unsigned char *mac_addr,
 void flush_wqes(struct nes_device *nesdev, struct nes_qp *nesqp,
                 u32 which_wq, u32 wait_completion)
 {
-        unsigned long flags;
         struct nes_cqp_request *cqp_request;
         struct nes_hw_cqp_wqe *cqp_wqe;
         int ret;
@@ -3285,7 +3249,7 @@ void flush_wqes(struct nes_device *nesdev, struct nes_qp *nesqp,
                         cpu_to_le32(NES_CQP_FLUSH_WQES | which_wq);
         cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesqp->hwqp.qp_id);
 
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         if (wait_completion) {
                 /* Wait for CQP */
@@ -3294,14 +3258,6 @@ void flush_wqes(struct nes_device *nesdev, struct nes_qp *nesqp,
                 nes_debug(NES_DBG_QP, "Flush SQ QP WQEs completed, ret=%u,"
                                 " CQP Major:Minor codes = 0x%04X:0x%04X\n",
                                 ret, cqp_request->major_code, cqp_request->minor_code);
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
+                nes_put_cqp_request(nesdev, cqp_request);
         }
 }
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index 745bf94f3f0..7b81e0ae007 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -1172,7 +1172,7 @@ struct nes_vnic {
         u32    mcrq_qp_id;
         struct nes_ucontext *mcrq_ucontext;
         struct nes_cqp_request* (*get_cqp_request)(struct nes_device *nesdev);
-        void (*post_cqp_request)(struct nes_device*, struct nes_cqp_request *, int);
+        void (*post_cqp_request)(struct nes_device*, struct nes_cqp_request *);
         int (*mcrq_mcast_filter)( struct nes_vnic* nesvnic, __u8* dmi_addr );
         struct net_device_stats netstats;
         /* used to put the netdev on the adapters logical port list */
diff --git a/drivers/infiniband/hw/nes/nes_utils.c b/drivers/infiniband/hw/nes/nes_utils.c
index fe83d1b2b17..fb8cbd71a2e 100644
--- a/drivers/infiniband/hw/nes/nes_utils.c
+++ b/drivers/infiniband/hw/nes/nes_utils.c
@@ -567,12 +567,36 @@ struct nes_cqp_request *nes_get_cqp_request(struct nes_device *nesdev)
         return cqp_request;
 }
 
+void nes_free_cqp_request(struct nes_device *nesdev,
+                          struct nes_cqp_request *cqp_request)
+{
+        unsigned long flags;
+
+        nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) freed.\n",
+                  cqp_request,
+                  le32_to_cpu(cqp_request->cqp_wqe.wqe_words[NES_CQP_WQE_OPCODE_IDX]) & 0x3f);
+
+        if (cqp_request->dynamic) {
+                kfree(cqp_request);
+        } else {
+                spin_lock_irqsave(&nesdev->cqp.lock, flags);
+                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
+                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
+        }
+}
+
+void nes_put_cqp_request(struct nes_device *nesdev,
+                         struct nes_cqp_request *cqp_request)
+{
+        if (atomic_dec_and_test(&cqp_request->refcount))
+                nes_free_cqp_request(nesdev, cqp_request);
+}
 
 /**
  * nes_post_cqp_request
  */
 void nes_post_cqp_request(struct nes_device *nesdev,
-                struct nes_cqp_request *cqp_request, int ring_doorbell)
+                          struct nes_cqp_request *cqp_request)
 {
         struct nes_hw_cqp_wqe *cqp_wqe;
         unsigned long flags;
@@ -600,10 +624,9 @@ void nes_post_cqp_request(struct nes_device *nesdev,
                                 nesdev->cqp.sq_head, nesdev->cqp.sq_tail, nesdev->cqp.sq_size,
                                 cqp_request->waiting, atomic_read(&cqp_request->refcount));
                 barrier();
-                if (ring_doorbell) {
-                        /* Ring doorbell (1 WQEs) */
-                        nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x01800000 | nesdev->cqp.qp_id);
-                }
+
+                /* Ring doorbell (1 WQEs) */
+                nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x01800000 | nesdev->cqp.qp_id);
 
                 barrier();
         } else {
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index d617da9bd35..e3939d13484 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -55,7 +55,6 @@ static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
  * nes_alloc_mw
  */
 static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) {
-        unsigned long flags;
         struct nes_pd *nespd = to_nespd(ibpd);
         struct nes_vnic *nesvnic = to_nesvnic(ibpd->device);
         struct nes_device *nesdev = nesvnic->nesdev;
@@ -119,7 +118,7 @@ static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) {
         set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag);
 
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         /* Wait for CQP */
         ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
@@ -128,15 +127,7 @@ static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) {
                         " CQP Major:Minor codes = 0x%04X:0x%04X.\n",
                         stag, ret, cqp_request->major_code, cqp_request->minor_code);
         if ((!ret) || (cqp_request->major_code)) {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
+                nes_put_cqp_request(nesdev, cqp_request);
                 kfree(nesmr);
                 nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index);
                 if (!ret) {
@@ -144,17 +135,8 @@ static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) {
                 } else {
                         return ERR_PTR(-ENOMEM);
                 }
-        } else {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
         }
+        nes_put_cqp_request(nesdev, cqp_request);
 
         nesmr->ibmw.rkey = stag;
         nesmr->mode = IWNES_MEMREG_TYPE_MW;
@@ -178,7 +160,6 @@ static int nes_dealloc_mw(struct ib_mw *ibmw)
         struct nes_hw_cqp_wqe *cqp_wqe;
         struct nes_cqp_request *cqp_request;
         int err = 0;
-        unsigned long flags;
         int ret;
 
         /* Deallocate the window with the adapter */
@@ -194,7 +175,7 @@ static int nes_dealloc_mw(struct ib_mw *ibmw)
         set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ibmw->rkey);
 
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         /* Wait for CQP */
         nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X to complete.\n",
@@ -204,32 +185,12 @@ static int nes_dealloc_mw(struct ib_mw *ibmw)
         nes_debug(NES_DBG_MR, "Deallocate STag completed, wait_event_timeout ret = %u,"
                         " CQP Major:Minor codes = 0x%04X:0x%04X.\n",
                         ret, cqp_request->major_code, cqp_request->minor_code);
-        if ((!ret) || (cqp_request->major_code)) {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
-                if (!ret) {
-                        err = -ETIME;
-                } else {
-                        err = -EIO;
-                }
-        } else {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
-        }
+        if (!ret)
+                err = -ETIME;
+        else if (cqp_request->major_code)
+                err = -EIO;
+
+        nes_put_cqp_request(nesdev, cqp_request);
 
         nes_free_resource(nesadapter, nesadapter->allocated_mrs,
                         (ibmw->rkey & 0x0fffff00) >> 8);
@@ -516,7 +477,7 @@ static struct ib_fmr *nes_alloc_fmr(struct ib_pd *ibpd,
                         (nesfmr->nesmr.pbls_used-1) : nesfmr->nesmr.pbls_used);
 
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         /* Wait for CQP */
         ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
@@ -526,29 +487,11 @@ static struct ib_fmr *nes_alloc_fmr(struct ib_pd *ibpd,
                         stag, ret, cqp_request->major_code, cqp_request->minor_code);
 
         if ((!ret) || (cqp_request->major_code)) {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
+                nes_put_cqp_request(nesdev, cqp_request);
                 ret = (!ret) ? -ETIME : -EIO;
                 goto failed_leaf_vpbl_pages_alloc;
-        } else {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
         }
-
+        nes_put_cqp_request(nesdev, cqp_request);
         nesfmr->nesmr.ibfmr.lkey = stag;
         nesfmr->nesmr.ibfmr.rkey = stag;
         nesfmr->attr = *ibfmr_attr;
@@ -1474,7 +1417,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
                         set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
 
                         atomic_set(&cqp_request->refcount, 2);
-                        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+                        nes_post_cqp_request(nesdev, cqp_request);
 
                         /* Wait for CQP */
                         nes_debug(NES_DBG_QP, "Waiting for create iWARP QP%u to complete.\n",
@@ -1487,15 +1430,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
                                         nesqp->hwqp.qp_id, ret, nesdev->cqp.sq_head, nesdev->cqp.sq_tail,
                                         cqp_request->major_code, cqp_request->minor_code);
                         if ((!ret) || (cqp_request->major_code)) {
-                                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                                        if (cqp_request->dynamic) {
-                                                kfree(cqp_request);
-                                        } else {
-                                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                                        }
-                                }
+                                nes_put_cqp_request(nesdev, cqp_request);
                                 nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num);
                                 nes_free_qp_mem(nesdev, nesqp,virt_wqs);
                                 kfree(nesqp->allocated_buffer);
@@ -1504,18 +1439,10 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
                                 } else {
                                         return ERR_PTR(-EIO);
                                 }
-                        } else {
-                                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                                        if (cqp_request->dynamic) {
-                                                kfree(cqp_request);
-                                        } else {
-                                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                                        }
-                                }
                         }
 
+                        nes_put_cqp_request(nesdev, cqp_request);
+
                         if (ibpd->uobject) {
                                 uresp.mmap_sq_db_index = nesqp->mmap_sq_db_index;
                                 uresp.actual_sq_size = sq_size;
@@ -1817,7 +1744,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries,
                         cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
 
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         /* Wait for CQP */
         nes_debug(NES_DBG_CQ, "Waiting for create iWARP CQ%u to complete.\n",
@@ -1827,32 +1754,15 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries,
         nes_debug(NES_DBG_CQ, "Create iWARP CQ%u completed, wait_event_timeout ret = %d.\n",
                         nescq->hw_cq.cq_number, ret);
         if ((!ret) || (cqp_request->major_code)) {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
+                nes_put_cqp_request(nesdev, cqp_request);
                 if (!context)
                         pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem,
                                         nescq->hw_cq.cq_pbase);
                 nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num);
                 kfree(nescq);
                 return ERR_PTR(-EIO);
-        } else {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
         }
+        nes_put_cqp_request(nesdev, cqp_request);
 
         if (context) {
                 /* free the nespbl */
@@ -1931,7 +1841,7 @@ static int nes_destroy_cq(struct ib_cq *ib_cq)
                 (nescq->hw_cq.cq_number | ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 16)));
         nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number);
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         /* Wait for CQP */
         nes_debug(NES_DBG_CQ, "Waiting for destroy iWARP CQ%u to complete.\n",
@@ -1942,37 +1852,18 @@ static int nes_destroy_cq(struct ib_cq *ib_cq)
                         " CQP Major:Minor codes = 0x%04X:0x%04X.\n",
                         nescq->hw_cq.cq_number, ret, cqp_request->major_code,
                         cqp_request->minor_code);
-        if ((!ret) || (cqp_request->major_code)) {
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
-                if (!ret) {
-                        nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy timeout expired\n",
+        if (!ret) {
+                nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy timeout expired\n",
                                         nescq->hw_cq.cq_number);
-                        ret = -ETIME;
-                } else {
-                        nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy failed\n",
+                ret = -ETIME;
+        } else if (cqp_request->major_code) {
+                nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy failed\n",
                                         nescq->hw_cq.cq_number);
-                        ret = -EIO;
-                }
+                ret = -EIO;
         } else {
                 ret = 0;
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
         }
+        nes_put_cqp_request(nesdev, cqp_request);
 
         if (nescq->cq_mem_size)
                 pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size,
@@ -2096,7 +1987,7 @@ static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd,
         barrier();
 
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         /* Wait for CQP */
         ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done),
@@ -2105,15 +1996,8 @@ static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd,
                         " CQP Major:Minor codes = 0x%04X:0x%04X.\n",
                         stag, ret, cqp_request->major_code, cqp_request->minor_code);
         major_code = cqp_request->major_code;
-        if (atomic_dec_and_test(&cqp_request->refcount)) {
-                if (cqp_request->dynamic) {
-                        kfree(cqp_request);
-                } else {
-                        spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                        list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                        spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                }
-        }
+        nes_put_cqp_request(nesdev, cqp_request);
+
         if (!ret)
                 return -ETIME;
         else if (major_code)
@@ -2754,7 +2638,7 @@ static int nes_dereg_mr(struct ib_mr *ib_mr)
         set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ib_mr->rkey);
 
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         /* Wait for CQP */
         nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X completed\n", ib_mr->rkey);
@@ -2771,15 +2655,9 @@ static int nes_dereg_mr(struct ib_mr *ib_mr)
 
         major_code = cqp_request->major_code;
         minor_code = cqp_request->minor_code;
-        if (atomic_dec_and_test(&cqp_request->refcount)) {
-                if (cqp_request->dynamic) {
-                        kfree(cqp_request);
-                } else {
-                        spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                        list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                        spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                }
-        }
+
+        nes_put_cqp_request(nesdev, cqp_request);
+
         if (!ret) {
                 nes_debug(NES_DBG_MR, "Timeout waiting to destroy STag,"
                                 " ib_mr=%p, rkey = 0x%08X\n",
@@ -2904,7 +2782,6 @@ int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp,
         /* struct iw_cm_id *cm_id = nesqp->cm_id; */
         /* struct iw_cm_event cm_event; */
         struct nes_cqp_request *cqp_request;
-        unsigned long flags;
         int ret;
         u16 major_code;
 
@@ -2932,7 +2809,7 @@ int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp,
         set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, (u64)nesqp->nesqp_context_pbase);
 
         atomic_set(&cqp_request->refcount, 2);
-        nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL);
+        nes_post_cqp_request(nesdev, cqp_request);
 
         /* Wait for CQP */
         if (wait_completion) {
@@ -2950,15 +2827,9 @@ int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp,
                                         nesqp->hwqp.qp_id, cqp_request->major_code,
                                         cqp_request->minor_code, next_iwarp_state);
                 }
-                if (atomic_dec_and_test(&cqp_request->refcount)) {
-                        if (cqp_request->dynamic) {
-                                kfree(cqp_request);
-                        } else {
-                                spin_lock_irqsave(&nesdev->cqp.lock, flags);
-                                list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs);
-                                spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
-                        }
-                }
+
+                nes_put_cqp_request(nesdev, cqp_request);
+
                 if (!ret)
                         return -ETIME;
                 else if (major_code)
diff --git a/drivers/infiniband/ulp/ipoib/Kconfig b/drivers/infiniband/ulp/ipoib/Kconfig
index 1f76bad020f..691525cf394 100644
--- a/drivers/infiniband/ulp/ipoib/Kconfig
+++ b/drivers/infiniband/ulp/ipoib/Kconfig
@@ -1,6 +1,7 @@
 config INFINIBAND_IPOIB
         tristate "IP-over-InfiniBand"
         depends on NETDEVICES && INET && (IPV6 || IPV6=n)
+        select INET_LRO
         ---help---
           Support for the IP-over-InfiniBand protocol (IPoIB). This
           transports IP packets over InfiniBand so you can use your IB
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index ca126fc2b85..b0ffc9abe8c 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ipoib.h 1358 2004-12-17 22:00:11Z roland $
  */
 
 #ifndef _IPOIB_H
@@ -52,9 +50,16 @@
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_pack.h>
 #include <rdma/ib_sa.h>
+#include <linux/inet_lro.h>
 
 /* constants */
 
+enum ipoib_flush_level {
+        IPOIB_FLUSH_LIGHT,
+        IPOIB_FLUSH_NORMAL,
+        IPOIB_FLUSH_HEAVY
+};
+
 enum {
         IPOIB_ENCAP_LEN           = 4,
 
@@ -65,8 +70,8 @@ enum {
         IPOIB_CM_BUF_SIZE         = IPOIB_CM_MTU  + IPOIB_ENCAP_LEN,
         IPOIB_CM_HEAD_SIZE        = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
         IPOIB_CM_RX_SG            = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
-        IPOIB_RX_RING_SIZE        = 128,
-        IPOIB_TX_RING_SIZE        = 64,
+        IPOIB_RX_RING_SIZE        = 256,
+        IPOIB_TX_RING_SIZE        = 128,
         IPOIB_MAX_QUEUE_SIZE      = 8192,
         IPOIB_MIN_QUEUE_SIZE      = 2,
         IPOIB_CM_MAX_CONN_QP      = 4096,
@@ -84,7 +89,6 @@ enum {
         IPOIB_FLAG_SUBINTERFACE   = 5,
         IPOIB_MCAST_RUN           = 6,
         IPOIB_STOP_REAPER         = 7,
-        IPOIB_MCAST_STARTED       = 8,
         IPOIB_FLAG_ADMIN_CM       = 9,
         IPOIB_FLAG_UMCAST         = 10,
         IPOIB_FLAG_CSUM           = 11,
@@ -96,7 +100,11 @@ enum {
         IPOIB_MCAST_FLAG_BUSY     = 2,  /* joining or already joined */
         IPOIB_MCAST_FLAG_ATTACHED = 3,
 
+        IPOIB_MAX_LRO_DESCRIPTORS = 8,
+        IPOIB_LRO_MAX_AGGR        = 64,
+
         MAX_SEND_CQE              = 16,
+        IPOIB_CM_COPYBREAK        = 256,
 };
 
 #define IPOIB_OP_RECV   (1ul << 31)
@@ -149,6 +157,11 @@ struct ipoib_tx_buf {
         u64             mapping[MAX_SKB_FRAGS + 1];
 };
 
+struct ipoib_cm_tx_buf {
+        struct sk_buff *skb;
+        u64             mapping;
+};
+
 struct ib_cm_id;
 
 struct ipoib_cm_data {
@@ -207,7 +220,7 @@ struct ipoib_cm_tx {
         struct net_device   *dev;
         struct ipoib_neigh  *neigh;
         struct ipoib_path   *path;
-        struct ipoib_tx_buf *tx_ring;
+        struct ipoib_cm_tx_buf *tx_ring;
         unsigned             tx_head;
         unsigned             tx_tail;
         unsigned long        flags;
@@ -249,6 +262,11 @@ struct ipoib_ethtool_st {
         u16     max_coalesced_frames;
 };
 
+struct ipoib_lro {
+        struct net_lro_mgr lro_mgr;
+        struct net_lro_desc lro_desc[IPOIB_MAX_LRO_DESCRIPTORS];
+};
+
 /*
  * Device private locking: tx_lock protects members used in TX fast
  * path (and we use LLTX so upper layers don't do extra locking).
@@ -264,7 +282,6 @@ struct ipoib_dev_priv {
 
         unsigned long flags;
 
-        struct mutex mcast_mutex;
         struct mutex vlan_mutex;
 
         struct rb_root  path_tree;
@@ -276,10 +293,11 @@ struct ipoib_dev_priv {
 
         struct delayed_work pkey_poll_task;
         struct delayed_work mcast_task;
-        struct work_struct flush_task;
+        struct work_struct flush_light;
+        struct work_struct flush_normal;
+        struct work_struct flush_heavy;
         struct work_struct restart_task;
         struct delayed_work ah_reap_task;
-        struct work_struct pkey_event_task;
 
         struct ib_device *ca;
         u8                port;
@@ -335,6 +353,8 @@ struct ipoib_dev_priv {
         int     hca_caps;
         struct ipoib_ethtool_st ethtool;
         struct timer_list poll_timer;
+
+        struct ipoib_lro lro;
 };
 
 struct ipoib_ah {
@@ -359,6 +379,7 @@ struct ipoib_path {
 
         struct rb_node        rb_node;
         struct list_head      list;
+        int                   valid;
 };
 
 struct ipoib_neigh {
@@ -423,11 +444,14 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
                 struct ipoib_ah *address, u32 qpn);
 void ipoib_reap_ah(struct work_struct *work);
 
+void ipoib_mark_paths_invalid(struct net_device *dev);
 void ipoib_flush_paths(struct net_device *dev);
 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
 
 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
-void ipoib_ib_dev_flush(struct work_struct *work);
+void ipoib_ib_dev_flush_light(struct work_struct *work);
+void ipoib_ib_dev_flush_normal(struct work_struct *work);
+void ipoib_ib_dev_flush_heavy(struct work_struct *work);
 void ipoib_pkey_event(struct work_struct *work);
 void ipoib_ib_dev_cleanup(struct net_device *dev);
 
@@ -466,9 +490,7 @@ void ipoib_path_iter_read(struct ipoib_path_iter *iter,
 #endif
 
 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
-                       union ib_gid *mgid);
-int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
-                       union ib_gid *mgid);
+                       union ib_gid *mgid, int set_qkey);
 
 int ipoib_init_qp(struct net_device *dev);
 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 97e67d36378..0f2d3045061 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id$
  */
 
 #include <rdma/ib_cm.h>
@@ -113,18 +111,20 @@ static int ipoib_cm_post_receive_srq(struct net_device *dev, int id)
 }
 
 static int ipoib_cm_post_receive_nonsrq(struct net_device *dev,
-                                        struct ipoib_cm_rx *rx, int id)
+                                        struct ipoib_cm_rx *rx,
+                                        struct ib_recv_wr *wr,
+                                        struct ib_sge *sge, int id)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         struct ib_recv_wr *bad_wr;
         int i, ret;
 
-        priv->cm.rx_wr.wr_id = id | IPOIB_OP_CM | IPOIB_OP_RECV;
+        wr->wr_id = id | IPOIB_OP_CM | IPOIB_OP_RECV;
 
         for (i = 0; i < IPOIB_CM_RX_SG; ++i)
-                priv->cm.rx_sge[i].addr = rx->rx_ring[id].mapping[i];
+                sge[i].addr = rx->rx_ring[id].mapping[i];
 
-        ret = ib_post_recv(rx->qp, &priv->cm.rx_wr, &bad_wr);
+        ret = ib_post_recv(rx->qp, wr, &bad_wr);
         if (unlikely(ret)) {
                 ipoib_warn(priv, "post recv failed for buf %d (%d)\n", id, ret);
                 ipoib_cm_dma_unmap_rx(priv, IPOIB_CM_RX_SG - 1,
@@ -322,10 +322,33 @@ static int ipoib_cm_modify_rx_qp(struct net_device *dev,
         return 0;
 }
 
+static void ipoib_cm_init_rx_wr(struct net_device *dev,
+                                struct ib_recv_wr *wr,
+                                struct ib_sge *sge)
+{
+        struct ipoib_dev_priv *priv = netdev_priv(dev);
+        int i;
+
+        for (i = 0; i < priv->cm.num_frags; ++i)
+                sge[i].lkey = priv->mr->lkey;
+
+        sge[0].length = IPOIB_CM_HEAD_SIZE;
+        for (i = 1; i < priv->cm.num_frags; ++i)
+                sge[i].length = PAGE_SIZE;
+
+        wr->next    = NULL;
+        wr->sg_list = priv->cm.rx_sge;
+        wr->num_sge = priv->cm.num_frags;
+}
+
 static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_id,
                                    struct ipoib_cm_rx *rx)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
+        struct {
+                struct ib_recv_wr wr;
+                struct ib_sge sge[IPOIB_CM_RX_SG];
+        } *t;
         int ret;
         int i;
 
@@ -333,6 +356,14 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i
         if (!rx->rx_ring)
                 return -ENOMEM;
 
+        t = kmalloc(sizeof *t, GFP_KERNEL);
+        if (!t) {
+                ret = -ENOMEM;
+                goto err_free;
+        }
+
+        ipoib_cm_init_rx_wr(dev, &t->wr, t->sge);
+
         spin_lock_irq(&priv->lock);
 
         if (priv->cm.nonsrq_conn_qp >= ipoib_max_conn_qp) {
@@ -351,8 +382,8 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i
                         ipoib_warn(priv, "failed to allocate receive buffer %d\n", i);
                                 ret = -ENOMEM;
                                 goto err_count;
-                        }
-                ret = ipoib_cm_post_receive_nonsrq(dev, rx, i);
+                }
+                ret = ipoib_cm_post_receive_nonsrq(dev, rx, &t->wr, t->sge, i);
                 if (ret) {
                         ipoib_warn(priv, "ipoib_cm_post_receive_nonsrq "
                                    "failed for buf %d\n", i);
@@ -363,6 +394,8 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i
 
         rx->recv_count = ipoib_recvq_size;
 
+        kfree(t);
+
         return 0;
 
 err_count:
@@ -371,6 +404,7 @@ err_count:
         spin_unlock_irq(&priv->lock);
 
 err_free:
+        kfree(t);
         ipoib_cm_free_rx_ring(dev, rx->rx_ring);
 
         return ret;
@@ -525,6 +559,7 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
         u64 mapping[IPOIB_CM_RX_SG];
         int frags;
         int has_srq;
+        struct sk_buff *small_skb;
 
         ipoib_dbg_data(priv, "cm recv completion: id %d, status: %d\n",
                        wr_id, wc->status);
@@ -579,6 +614,23 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
                 }
         }
 
+        if (wc->byte_len < IPOIB_CM_COPYBREAK) {
+                int dlen = wc->byte_len;
+
+                small_skb = dev_alloc_skb(dlen + 12);
+                if (small_skb) {
+                        skb_reserve(small_skb, 12);
+                        ib_dma_sync_single_for_cpu(priv->ca, rx_ring[wr_id].mapping[0],
+                                                   dlen, DMA_FROM_DEVICE);
+                        skb_copy_from_linear_data(skb, small_skb->data, dlen);
+                        ib_dma_sync_single_for_device(priv->ca, rx_ring[wr_id].mapping[0],
+                                                      dlen, DMA_FROM_DEVICE);
+                        skb_put(small_skb, dlen);
+                        skb = small_skb;
+                        goto copied;
+                }
+        }
+
         frags = PAGE_ALIGN(wc->byte_len - min(wc->byte_len,
                                               (unsigned)IPOIB_CM_HEAD_SIZE)) / PAGE_SIZE;
 
@@ -601,6 +653,7 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 
         skb_put_frags(skb, IPOIB_CM_HEAD_SIZE, wc->byte_len, newskb);
 
+copied:
         skb->protocol = ((struct ipoib_header *) skb->data)->proto;
         skb_reset_mac_header(skb);
         skb_pull(skb, IPOIB_ENCAP_LEN);
@@ -620,7 +673,10 @@ repost:
                         ipoib_warn(priv, "ipoib_cm_post_receive_srq failed "
                                    "for buf %d\n", wr_id);
         } else {
-                if (unlikely(ipoib_cm_post_receive_nonsrq(dev, p, wr_id))) {
+                if (unlikely(ipoib_cm_post_receive_nonsrq(dev, p,
+                                                          &priv->cm.rx_wr,
+                                                          priv->cm.rx_sge,
+                                                          wr_id))) {
                         --p->recv_count;
                         ipoib_warn(priv, "ipoib_cm_post_receive_nonsrq failed "
                                    "for buf %d\n", wr_id);
@@ -647,7 +703,7 @@ static inline int post_send(struct ipoib_dev_priv *priv,
 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
-        struct ipoib_tx_buf *tx_req;
+        struct ipoib_cm_tx_buf *tx_req;
         u64 addr;
 
         if (unlikely(skb->len > tx->mtu)) {
@@ -678,7 +734,7 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_
                 return;
         }
 
-        tx_req->mapping[0] = addr;
+        tx_req->mapping = addr;
 
         if (unlikely(post_send(priv, tx, tx->tx_head & (ipoib_sendq_size - 1),
                                addr, skb->len))) {
@@ -703,7 +759,7 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         struct ipoib_cm_tx *tx = wc->qp->qp_context;
         unsigned int wr_id = wc->wr_id & ~IPOIB_OP_CM;
-        struct ipoib_tx_buf *tx_req;
+        struct ipoib_cm_tx_buf *tx_req;
         unsigned long flags;
 
         ipoib_dbg_data(priv, "cm send completion: id %d, status: %d\n",
@@ -717,7 +773,7 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
 
         tx_req = &tx->tx_ring[wr_id];
 
-        ib_dma_unmap_single(priv->ca, tx_req->mapping[0], tx_req->skb->len, DMA_TO_DEVICE);
+        ib_dma_unmap_single(priv->ca, tx_req->mapping, tx_req->skb->len, DMA_TO_DEVICE);
 
         /* FIXME: is this right? Shouldn't we only increment on success? */
         ++dev->stats.tx_packets;
@@ -1087,7 +1143,7 @@ err_tx:
 static void ipoib_cm_tx_destroy(struct ipoib_cm_tx *p)
 {
         struct ipoib_dev_priv *priv = netdev_priv(p->dev);
-        struct ipoib_tx_buf *tx_req;
+        struct ipoib_cm_tx_buf *tx_req;
         unsigned long flags;
         unsigned long begin;
 
@@ -1115,7 +1171,7 @@ timeout:
 
         while ((int) p->tx_tail - (int) p->tx_head < 0) {
                 tx_req = &p->tx_ring[p->tx_tail & (ipoib_sendq_size - 1)];
-                ib_dma_unmap_single(priv->ca, tx_req->mapping[0], tx_req->skb->len,
+                ib_dma_unmap_single(priv->ca, tx_req->mapping, tx_req->skb->len,
                                     DMA_TO_DEVICE);
                 dev_kfree_skb_any(tx_req->skb);
                 ++p->tx_tail;
@@ -1384,7 +1440,9 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr,
                 ipoib_warn(priv, "enabling connected mode "
                            "will cause multicast packet drops\n");
 
+                rtnl_lock();
                 dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_TSO);
+                rtnl_unlock();
                 priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM;
 
                 ipoib_flush_paths(dev);
@@ -1393,14 +1451,16 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr,
 
         if (!strcmp(buf, "datagram\n")) {
                 clear_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
-                dev->mtu = min(priv->mcast_mtu, dev->mtu);
-                ipoib_flush_paths(dev);
 
+                rtnl_lock();
                 if (test_bit(IPOIB_FLAG_CSUM, &priv->flags)) {
                         dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
                         if (priv->hca_caps & IB_DEVICE_UD_TSO)
                                 dev->features |= NETIF_F_TSO;
                 }
+                dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));
+                rtnl_unlock();
+                ipoib_flush_paths(dev);
 
                 return count;
         }
@@ -1485,15 +1545,7 @@ int ipoib_cm_dev_init(struct net_device *dev)
                 priv->cm.num_frags  = IPOIB_CM_RX_SG;
         }
 
-        for (i = 0; i < priv->cm.num_frags; ++i)
-                priv->cm.rx_sge[i].lkey = priv->mr->lkey;
-
-        priv->cm.rx_sge[0].length = IPOIB_CM_HEAD_SIZE;
-        for (i = 1; i < priv->cm.num_frags; ++i)
-                priv->cm.rx_sge[i].length = PAGE_SIZE;
-        priv->cm.rx_wr.next = NULL;
-        priv->cm.rx_wr.sg_list = priv->cm.rx_sge;
-        priv->cm.rx_wr.num_sge = priv->cm.num_frags;
+        ipoib_cm_init_rx_wr(dev, &priv->cm.rx_wr, priv->cm.rx_sge);
 
         if (ipoib_cm_has_srq(dev)) {
                 for (i = 0; i < ipoib_recvq_size; ++i) {
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
index 10279b79c44..66af5c1a76e 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -86,11 +86,57 @@ static int ipoib_set_coalesce(struct net_device *dev,
         return 0;
 }
 
+static const char ipoib_stats_keys[][ETH_GSTRING_LEN] = {
+        "LRO aggregated", "LRO flushed",
+        "LRO avg aggr", "LRO no desc"
+};
+
+static void ipoib_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
+{
+        switch (stringset) {
+        case ETH_SS_STATS:
+                memcpy(data, *ipoib_stats_keys, sizeof(ipoib_stats_keys));
+                break;
+        }
+}
+
+static int ipoib_get_sset_count(struct net_device *dev, int sset)
+{
+        switch (sset) {
+        case ETH_SS_STATS:
+                return ARRAY_SIZE(ipoib_stats_keys);
+        default:
+                return -EOPNOTSUPP;
+        }
+}
+
+static void ipoib_get_ethtool_stats(struct net_device *dev,
+                                struct ethtool_stats *stats, uint64_t *data)
+{
+        struct ipoib_dev_priv *priv = netdev_priv(dev);
+        int index = 0;
+
+        /* Get LRO statistics */
+        data[index++] = priv->lro.lro_mgr.stats.aggregated;
+        data[index++] = priv->lro.lro_mgr.stats.flushed;
+        if (priv->lro.lro_mgr.stats.flushed)
+                data[index++] = priv->lro.lro_mgr.stats.aggregated /
+                                priv->lro.lro_mgr.stats.flushed;
+        else
+                data[index++] = 0;
+        data[index++] = priv->lro.lro_mgr.stats.no_desc;
+}
+
 static const struct ethtool_ops ipoib_ethtool_ops = {
         .get_drvinfo            = ipoib_get_drvinfo,
         .get_tso                = ethtool_op_get_tso,
         .get_coalesce           = ipoib_get_coalesce,
         .set_coalesce           = ipoib_set_coalesce,
+        .get_flags              = ethtool_op_get_flags,
+        .set_flags              = ethtool_op_set_flags,
+        .get_strings            = ipoib_get_strings,
+        .get_sset_count         = ipoib_get_sset_count,
+        .get_ethtool_stats      = ipoib_get_ethtool_stats,
 };
 
 void ipoib_set_ethtool_ops(struct net_device *dev)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_fs.c b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
index 8b882bbd1d0..961c585da21 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_fs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ipoib_fs.c 1389 2004-12-27 22:56:47Z roland $
  */
 
 #include <linux/err.h>
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index f429bce24c2..66cafa20c24 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -31,8 +31,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ipoib_ib.c 1386 2004-12-27 16:23:17Z roland $
  */
 
 #include <linux/delay.h>
@@ -290,7 +288,10 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
         if (test_bit(IPOIB_FLAG_CSUM, &priv->flags) && likely(wc->csum_ok))
                 skb->ip_summed = CHECKSUM_UNNECESSARY;
 
-        netif_receive_skb(skb);
+        if (dev->features & NETIF_F_LRO)
+                lro_receive_skb(&priv->lro.lro_mgr, skb, NULL);
+        else
+                netif_receive_skb(skb);
 
 repost:
         if (unlikely(ipoib_ib_post_receive(dev, wr_id)))
@@ -442,6 +443,9 @@ poll_more:
         }
 
         if (done < budget) {
+                if (dev->features & NETIF_F_LRO)
+                        lro_flush_all(&priv->lro.lro_mgr);
+
                 netif_rx_complete(dev, napi);
                 if (unlikely(ib_req_notify_cq(priv->recv_cq,
                                               IB_CQ_NEXT_COMP |
@@ -898,7 +902,8 @@ int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port)
         return 0;
 }
 
-static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv, int pkey_event)
+static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv,
+                                enum ipoib_flush_level level)
 {
         struct ipoib_dev_priv *cpriv;
         struct net_device *dev = priv->dev;
@@ -911,7 +916,7 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv, int pkey_event)
          * the parent is down.
          */
         list_for_each_entry(cpriv, &priv->child_intfs, list)
-                __ipoib_ib_dev_flush(cpriv, pkey_event);
+                __ipoib_ib_dev_flush(cpriv, level);
 
         mutex_unlock(&priv->vlan_mutex);
 
@@ -925,7 +930,7 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv, int pkey_event)
                 return;
         }
 
-        if (pkey_event) {
+        if (level == IPOIB_FLUSH_HEAVY) {
                 if (ib_find_pkey(priv->ca, priv->port, priv->pkey, &new_index)) {
                         clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
                         ipoib_ib_dev_down(dev, 0);
@@ -943,11 +948,15 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv, int pkey_event)
                 priv->pkey_index = new_index;
         }
 
-        ipoib_dbg(priv, "flushing\n");
+        if (level == IPOIB_FLUSH_LIGHT) {
+                ipoib_mark_paths_invalid(dev);
+                ipoib_mcast_dev_flush(dev);
+        }
 
-        ipoib_ib_dev_down(dev, 0);
+        if (level >= IPOIB_FLUSH_NORMAL)
+                ipoib_ib_dev_down(dev, 0);
 
-        if (pkey_event) {
+        if (level == IPOIB_FLUSH_HEAVY) {
                 ipoib_ib_dev_stop(dev, 0);
                 ipoib_ib_dev_open(dev);
         }
@@ -957,27 +966,34 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv, int pkey_event)
          * we get here, don't bring it back up if it's not configured up
          */
         if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) {
-                ipoib_ib_dev_up(dev);
+                if (level >= IPOIB_FLUSH_NORMAL)
+                        ipoib_ib_dev_up(dev);
                 ipoib_mcast_restart_task(&priv->restart_task);
         }
 }
 
-void ipoib_ib_dev_flush(struct work_struct *work)
+void ipoib_ib_dev_flush_light(struct work_struct *work)
+{
+        struct ipoib_dev_priv *priv =
+                container_of(work, struct ipoib_dev_priv, flush_light);
+
+        __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_LIGHT);
+}
+
+void ipoib_ib_dev_flush_normal(struct work_struct *work)
 {
         struct ipoib_dev_priv *priv =
-                container_of(work, struct ipoib_dev_priv, flush_task);
+                container_of(work, struct ipoib_dev_priv, flush_normal);
 
-        ipoib_dbg(priv, "Flushing %s\n", priv->dev->name);
-        __ipoib_ib_dev_flush(priv, 0);
+        __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_NORMAL);
 }
 
-void ipoib_pkey_event(struct work_struct *work)
+void ipoib_ib_dev_flush_heavy(struct work_struct *work)
 {
         struct ipoib_dev_priv *priv =
-                container_of(work, struct ipoib_dev_priv, pkey_event_task);
+                container_of(work, struct ipoib_dev_priv, flush_heavy);
 
-        ipoib_dbg(priv, "Flushing %s and restarting its QP\n", priv->dev->name);
-        __ipoib_ib_dev_flush(priv, 1);
+        __ipoib_ib_dev_flush(priv, IPOIB_FLUSH_HEAVY);
 }
 
 void ipoib_ib_dev_cleanup(struct net_device *dev)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 2442090ac8d..8be9ea0436e 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ipoib_main.c 1377 2004-12-23 19:57:12Z roland $
  */
 
 #include "ipoib.h"
@@ -62,6 +60,15 @@ MODULE_PARM_DESC(send_queue_size, "Number of descriptors in send queue");
 module_param_named(recv_queue_size, ipoib_recvq_size, int, 0444);
 MODULE_PARM_DESC(recv_queue_size, "Number of descriptors in receive queue");
 
+static int lro;
+module_param(lro, bool, 0444);
+MODULE_PARM_DESC(lro,  "Enable LRO (Large Receive Offload)");
+
+static int lro_max_aggr = IPOIB_LRO_MAX_AGGR;
+module_param(lro_max_aggr, int, 0644);
+MODULE_PARM_DESC(lro_max_aggr, "LRO: Max packets to be aggregated "
+                "(default = 64)");
+
 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 int ipoib_debug_level;
 
@@ -350,6 +357,23 @@ void ipoib_path_iter_read(struct ipoib_path_iter *iter,
 
 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
 
+void ipoib_mark_paths_invalid(struct net_device *dev)
+{
+        struct ipoib_dev_priv *priv = netdev_priv(dev);
+        struct ipoib_path *path, *tp;
+
+        spin_lock_irq(&priv->lock);
+
+        list_for_each_entry_safe(path, tp, &priv->path_list, list) {
+                ipoib_dbg(priv, "mark path LID 0x%04x GID " IPOIB_GID_FMT " invalid\n",
+                        be16_to_cpu(path->pathrec.dlid),
+                        IPOIB_GID_ARG(path->pathrec.dgid));
+                path->valid =  0;
+        }
+
+        spin_unlock_irq(&priv->lock);
+}
+
 void ipoib_flush_paths(struct net_device *dev)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -386,6 +410,7 @@ static void path_rec_completion(int status,
         struct net_device *dev = path->dev;
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         struct ipoib_ah *ah = NULL;
+        struct ipoib_ah *old_ah;
         struct ipoib_neigh *neigh, *tn;
         struct sk_buff_head skqueue;
         struct sk_buff *skb;
@@ -409,6 +434,7 @@ static void path_rec_completion(int status,
 
         spin_lock_irqsave(&priv->lock, flags);
 
+        old_ah   = path->ah;
         path->ah = ah;
 
         if (ah) {
@@ -421,6 +447,17 @@ static void path_rec_completion(int status,
                         __skb_queue_tail(&skqueue, skb);
 
                 list_for_each_entry_safe(neigh, tn, &path->neigh_list, list) {
+                        if (neigh->ah) {
+                                WARN_ON(neigh->ah != old_ah);
+                                /*
+                                 * Dropping the ah reference inside
+                                 * priv->lock is safe here, because we
+                                 * will hold one more reference from
+                                 * the original value of path->ah (ie
+                                 * old_ah).
+                                 */
+                                ipoib_put_ah(neigh->ah);
+                        }
                         kref_get(&path->ah->ref);
                         neigh->ah = path->ah;
                         memcpy(&neigh->dgid.raw, &path->pathrec.dgid.raw,
@@ -443,6 +480,7 @@ static void path_rec_completion(int status,
                         while ((skb = __skb_dequeue(&neigh->queue)))
                                 __skb_queue_tail(&skqueue, skb);
                 }
+                path->valid = 1;
         }
 
         path->query = NULL;
@@ -450,6 +488,9 @@ static void path_rec_completion(int status,
 
         spin_unlock_irqrestore(&priv->lock, flags);
 
+        if (old_ah)
+                ipoib_put_ah(old_ah);
+
         while ((skb = __skb_dequeue(&skqueue))) {
                 skb->dev = dev;
                 if (dev_queue_xmit(skb))
@@ -623,8 +664,9 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev,
         spin_lock(&priv->lock);
 
         path = __path_find(dev, phdr->hwaddr + 4);
-        if (!path) {
-                path = path_rec_create(dev, phdr->hwaddr + 4);
+        if (!path || !path->valid) {
+                if (!path)
+                        path = path_rec_create(dev, phdr->hwaddr + 4);
                 if (path) {
                         /* put pseudoheader back on for next time */
                         skb_push(skb, sizeof *phdr);
@@ -938,6 +980,54 @@ static const struct header_ops ipoib_header_ops = {
         .create = ipoib_hard_header,
 };
 
+static int get_skb_hdr(struct sk_buff *skb, void **iphdr,
+                       void **tcph, u64 *hdr_flags, void *priv)
+{
+        unsigned int ip_len;
+        struct iphdr *iph;
+
+        if (unlikely(skb->protocol != htons(ETH_P_IP)))
+                return -1;
+
+        /*
+         * In the future we may add an else clause that verifies the
+         * checksum and allows devices which do not calculate checksum
+         * to use LRO.
+         */
+        if (unlikely(skb->ip_summed != CHECKSUM_UNNECESSARY))
+                return -1;
+
+        /* Check for non-TCP packet */
+        skb_reset_network_header(skb);
+        iph = ip_hdr(skb);
+        if (iph->protocol != IPPROTO_TCP)
+                return -1;
+
+        ip_len = ip_hdrlen(skb);
+        skb_set_transport_header(skb, ip_len);
+        *tcph = tcp_hdr(skb);
+
+        /* check if IP header and TCP header are complete */
+        if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb))
+                return -1;
+
+        *hdr_flags = LRO_IPV4 | LRO_TCP;
+        *iphdr = iph;
+
+        return 0;
+}
+
+static void ipoib_lro_setup(struct ipoib_dev_priv *priv)
+{
+        priv->lro.lro_mgr.max_aggr       = lro_max_aggr;
+        priv->lro.lro_mgr.max_desc       = IPOIB_MAX_LRO_DESCRIPTORS;
+        priv->lro.lro_mgr.lro_arr        = priv->lro.lro_desc;
+        priv->lro.lro_mgr.get_skb_header = get_skb_hdr;
+        priv->lro.lro_mgr.features       = LRO_F_NAPI;
+        priv->lro.lro_mgr.dev            = priv->dev;
+        priv->lro.lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
+}
+
 static void ipoib_setup(struct net_device *dev)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -977,10 +1067,11 @@ static void ipoib_setup(struct net_device *dev)
 
         priv->dev = dev;
 
+        ipoib_lro_setup(priv);
+
         spin_lock_init(&priv->lock);
         spin_lock_init(&priv->tx_lock);
 
-        mutex_init(&priv->mcast_mutex);
         mutex_init(&priv->vlan_mutex);
 
         INIT_LIST_HEAD(&priv->path_list);
@@ -989,9 +1080,10 @@ static void ipoib_setup(struct net_device *dev)
         INIT_LIST_HEAD(&priv->multicast_list);
 
         INIT_DELAYED_WORK(&priv->pkey_poll_task, ipoib_pkey_poll);
-        INIT_WORK(&priv->pkey_event_task, ipoib_pkey_event);
         INIT_DELAYED_WORK(&priv->mcast_task,   ipoib_mcast_join_task);
-        INIT_WORK(&priv->flush_task,   ipoib_ib_dev_flush);
+        INIT_WORK(&priv->flush_light,   ipoib_ib_dev_flush_light);
+        INIT_WORK(&priv->flush_normal,   ipoib_ib_dev_flush_normal);
+        INIT_WORK(&priv->flush_heavy,   ipoib_ib_dev_flush_heavy);
         INIT_WORK(&priv->restart_task, ipoib_mcast_restart_task);
         INIT_DELAYED_WORK(&priv->ah_reap_task, ipoib_reap_ah);
 }
@@ -1154,6 +1246,9 @@ static struct net_device *ipoib_add_port(const char *format,
                 priv->dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
         }
 
+        if (lro)
+                priv->dev->features |= NETIF_F_LRO;
+
         /*
          * Set the full membership bit, so that we join the right
          * broadcast group, etc.
@@ -1304,6 +1399,12 @@ static int __init ipoib_init_module(void)
         ipoib_max_conn_qp = min(ipoib_max_conn_qp, IPOIB_CM_MAX_CONN_QP);
 #endif
 
+        /*
+         * When copying small received packets, we only copy from the
+         * linear data part of the SKB, so we rely on this condition.
+         */
+        BUILD_BUG_ON(IPOIB_CM_COPYBREAK > IPOIB_CM_HEAD_SIZE);
+
         ret = ipoib_register_debugfs();
         if (ret)
                 return ret;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 3f663fb852c..1fcc9a898d8 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ipoib_multicast.c 1362 2004-12-18 15:56:29Z roland $
  */
 
 #include <linux/skbuff.h>
@@ -188,6 +186,7 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast,
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         struct ipoib_ah *ah;
         int ret;
+        int set_qkey = 0;
 
         mcast->mcmember = *mcmember;
 
@@ -202,6 +201,7 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast,
                 priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey);
                 spin_unlock_irq(&priv->lock);
                 priv->tx_wr.wr.ud.remote_qkey = priv->qkey;
+                set_qkey = 1;
         }
 
         if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) {
@@ -214,7 +214,7 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast,
                 }
 
                 ret = ipoib_mcast_attach(dev, be16_to_cpu(mcast->mcmember.mlid),
-                                         &mcast->mcmember.mgid);
+                                         &mcast->mcmember.mgid, set_qkey);
                 if (ret < 0) {
                         ipoib_warn(priv, "couldn't attach QP to multicast group "
                                    IPOIB_GID_FMT "\n",
@@ -575,8 +575,11 @@ void ipoib_mcast_join_task(struct work_struct *work)
 
         priv->mcast_mtu = IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
 
-        if (!ipoib_cm_admin_enabled(dev))
-                dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);
+        if (!ipoib_cm_admin_enabled(dev)) {
+                rtnl_lock();
+                dev_set_mtu(dev, min(priv->mcast_mtu, priv->admin_mtu));
+                rtnl_unlock();
+        }
 
         ipoib_dbg_mcast(priv, "successfully joined all multicast groups\n");
 
@@ -594,10 +597,6 @@ int ipoib_mcast_start_thread(struct net_device *dev)
                 queue_delayed_work(ipoib_workqueue, &priv->mcast_task, 0);
         mutex_unlock(&mcast_mutex);
 
-        spin_lock_irq(&priv->lock);
-        set_bit(IPOIB_MCAST_STARTED, &priv->flags);
-        spin_unlock_irq(&priv->lock);
-
         return 0;
 }
 
@@ -607,10 +606,6 @@ int ipoib_mcast_stop_thread(struct net_device *dev, int flush)
 
         ipoib_dbg_mcast(priv, "stopping multicast thread\n");
 
-        spin_lock_irq(&priv->lock);
-        clear_bit(IPOIB_MCAST_STARTED, &priv->flags);
-        spin_unlock_irq(&priv->lock);
-
         mutex_lock(&mcast_mutex);
         clear_bit(IPOIB_MCAST_RUN, &priv->flags);
         cancel_delayed_work(&priv->mcast_task);
@@ -635,10 +630,10 @@ static int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast)
                                 IPOIB_GID_ARG(mcast->mcmember.mgid));
 
                 /* Remove ourselves from the multicast group */
-                ret = ipoib_mcast_detach(dev, be16_to_cpu(mcast->mcmember.mlid),
-                                         &mcast->mcmember.mgid);
+                ret = ib_detach_mcast(priv->qp, &mcast->mcmember.mgid,
+                                      be16_to_cpu(mcast->mcmember.mlid));
                 if (ret)
-                        ipoib_warn(priv, "ipoib_mcast_detach failed (result = %d)\n", ret);
+                        ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret);
         }
 
         return 0;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
index 8766d29ce3b..68325119f74 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
@@ -29,24 +29,17 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ipoib_verbs.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include "ipoib.h"
 
-int ipoib_mcast_attach(struct net_device *dev, u16 mlid, union ib_gid *mgid)
+int ipoib_mcast_attach(struct net_device *dev, u16 mlid, union ib_gid *mgid, int set_qkey)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
-        struct ib_qp_attr *qp_attr;
+        struct ib_qp_attr *qp_attr = NULL;
         int ret;
         u16 pkey_index;
 
-        ret = -ENOMEM;
-        qp_attr = kmalloc(sizeof *qp_attr, GFP_KERNEL);
-        if (!qp_attr)
-                goto out;
-
         if (ib_find_pkey(priv->ca, priv->port, priv->pkey, &pkey_index)) {
                 clear_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
                 ret = -ENXIO;
@@ -54,18 +47,23 @@ int ipoib_mcast_attach(struct net_device *dev, u16 mlid, union ib_gid *mgid)
         }
         set_bit(IPOIB_PKEY_ASSIGNED, &priv->flags);
 
-        /* set correct QKey for QP */
-        qp_attr->qkey = priv->qkey;
-        ret = ib_modify_qp(priv->qp, qp_attr, IB_QP_QKEY);
-        if (ret) {
-                ipoib_warn(priv, "failed to modify QP, ret = %d\n", ret);
-                goto out;
+        if (set_qkey) {
+                ret = -ENOMEM;
+                qp_attr = kmalloc(sizeof *qp_attr, GFP_KERNEL);
+                if (!qp_attr)
+                        goto out;
+
+                /* set correct QKey for QP */
+                qp_attr->qkey = priv->qkey;
+                ret = ib_modify_qp(priv->qp, qp_attr, IB_QP_QKEY);
+                if (ret) {
+                        ipoib_warn(priv, "failed to modify QP, ret = %d\n", ret);
+                        goto out;
+                }
         }
 
         /* attach QP to multicast group */
-        mutex_lock(&priv->mcast_mutex);
         ret = ib_attach_mcast(priv->qp, mgid, mlid);
-        mutex_unlock(&priv->mcast_mutex);
         if (ret)
                 ipoib_warn(priv, "failed to attach to multicast group, ret = %d\n", ret);
 
@@ -74,20 +72,6 @@ out:
         return ret;
 }
 
-int ipoib_mcast_detach(struct net_device *dev, u16 mlid, union ib_gid *mgid)
-{
-        struct ipoib_dev_priv *priv = netdev_priv(dev);
-        int ret;
-
-        mutex_lock(&priv->mcast_mutex);
-        ret = ib_detach_mcast(priv->qp, mgid, mlid);
-        mutex_unlock(&priv->mcast_mutex);
-        if (ret)
-                ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret);
-
-        return ret;
-}
-
 int ipoib_init_qp(struct net_device *dev)
 {
         struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -201,7 +185,10 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
         init_attr.recv_cq = priv->recv_cq;
 
         if (priv->hca_caps & IB_DEVICE_UD_TSO)
-                init_attr.create_flags = IB_QP_CREATE_IPOIB_UD_LSO;
+                init_attr.create_flags |= IB_QP_CREATE_IPOIB_UD_LSO;
+
+        if (priv->hca_caps & IB_DEVICE_BLOCK_MULTICAST_LOOPBACK)
+                init_attr.create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK;
 
         if (dev->features & NETIF_F_SG)
                 init_attr.cap.max_send_sge = MAX_SKB_FRAGS + 1;
@@ -289,15 +276,17 @@ void ipoib_event(struct ib_event_handler *handler,
         if (record->element.port_num != priv->port)
                 return;
 
-        if (record->event == IB_EVENT_PORT_ERR    ||
-            record->event == IB_EVENT_PORT_ACTIVE ||
-            record->event == IB_EVENT_LID_CHANGE  ||
-            record->event == IB_EVENT_SM_CHANGE   ||
+        ipoib_dbg(priv, "Event %d on device %s port %d\n", record->event,
+                  record->device->name, record->element.port_num);
+
+        if (record->event == IB_EVENT_SM_CHANGE ||
             record->event == IB_EVENT_CLIENT_REREGISTER) {
-                ipoib_dbg(priv, "Port state change event\n");
-                queue_work(ipoib_workqueue, &priv->flush_task);
+                queue_work(ipoib_workqueue, &priv->flush_light);
+        } else if (record->event == IB_EVENT_PORT_ERR ||
+                   record->event == IB_EVENT_PORT_ACTIVE ||
+                   record->event == IB_EVENT_LID_CHANGE) {
+                queue_work(ipoib_workqueue, &priv->flush_normal);
         } else if (record->event == IB_EVENT_PKEY_CHANGE) {
-                ipoib_dbg(priv, "P_Key change event on port:%d\n", priv->port);
-                queue_work(ipoib_workqueue, &priv->pkey_event_task);
+                queue_work(ipoib_workqueue, &priv->flush_heavy);
         }
 }
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 1cdb5cfb0ff..b08eb56196d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ipoib_vlan.c 1349 2004-12-16 21:09:43Z roland $
  */
 
 #include <linux/module.h>
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index aeb58cae9a3..356fac6d105 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -42,9 +42,6 @@
  *      Zhenyu Wang
  * Modified by:
  *      Erez Zilber
- *
- *
- * $Id: iscsi_iser.c 6965 2006-05-07 11:36:20Z ogerlitz $
  */
 
 #include <linux/types.h>
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h
index a8c1b300e34..0e10703cf59 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -36,8 +36,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: iscsi_iser.h 7051 2006-05-10 12:29:11Z ogerlitz $
  */
 #ifndef __ISCSI_ISER_H__
 #define __ISCSI_ISER_H__
diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c b/drivers/infiniband/ulp/iser/iser_initiator.c
index 08dc81c46f4..31ad498bdc5 100644
--- a/drivers/infiniband/ulp/iser/iser_initiator.c
+++ b/drivers/infiniband/ulp/iser/iser_initiator.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: iser_initiator.c 6964 2006-05-07 11:11:43Z ogerlitz $
  */
 #include <linux/kernel.h>
 #include <linux/slab.h>
diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c
index cac50c4dc15..81e49cb10ed 100644
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: iser_memory.c 6964 2006-05-07 11:11:43Z ogerlitz $
  */
 #include <linux/module.h>
 #include <linux/kernel.h>
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index d19cfe605eb..77cabee7cc0 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: iser_verbs.c 7051 2006-05-10 12:29:11Z ogerlitz $
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 435145709dd..ed7c5f72cb8 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_srp.c 3932 2005-11-01 17:19:29Z roland $
  */
 
 #include <linux/module.h>
@@ -49,8 +47,6 @@
 #include <scsi/srp.h>
 #include <scsi/scsi_transport_srp.h>
 
-#include <rdma/ib_cache.h>
-
 #include "ib_srp.h"
 
 #define DRV_NAME        "ib_srp"
@@ -183,10 +179,10 @@ static int srp_init_qp(struct srp_target_port *target,
         if (!attr)
                 return -ENOMEM;
 
-        ret = ib_find_cached_pkey(target->srp_host->srp_dev->dev,
-                                  target->srp_host->port,
-                                  be16_to_cpu(target->path.pkey),
-                                  &attr->pkey_index);
+        ret = ib_find_pkey(target->srp_host->srp_dev->dev,
+                           target->srp_host->port,
+                           be16_to_cpu(target->path.pkey),
+                           &attr->pkey_index);
         if (ret)
                 goto out;
 
@@ -1883,8 +1879,7 @@ static ssize_t srp_create_target(struct device *dev,
         if (ret)
                 goto err;
 
-        ib_get_cached_gid(host->srp_dev->dev, host->port, 0,
-                          &target->path.sgid);
+        ib_query_gid(host->srp_dev->dev, host->port, 0, &target->path.sgid);
 
         shost_printk(KERN_DEBUG, target->scsi_host, PFX
                      "new target: id_ext %016llx ioc_guid %016llx pkey %04x "
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index 63d2ae72406..e185b907fc1 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_srp.h 3932 2005-11-01 17:19:29Z roland $
  */
 
 #ifndef IB_SRP_H
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 2e554a4ab33..95dfda52b4f 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -478,7 +478,7 @@ void __init lguest_arch_host_init(void)
                 cpu_had_pge = 1;
                 /* adjust_pge is a helper function which sets or unsets the PGE
                  * bit on its CPU, depending on the argument (0 == unset). */
-                on_each_cpu(adjust_pge, (void *)0, 0, 1);
+                on_each_cpu(adjust_pge, (void *)0, 1);
                 /* Turn off the feature in the global feature set. */
                 clear_bit(X86_FEATURE_PGE, boot_cpu_data.x86_capability);
         }
@@ -493,7 +493,7 @@ void __exit lguest_arch_host_fini(void)
         if (cpu_had_pge) {
                 set_bit(X86_FEATURE_PGE, boot_cpu_data.x86_capability);
                 /* adjust_pge's argument "1" means set PGE. */
-                on_each_cpu(adjust_pge, (void *)1, 0, 1);
+                on_each_cpu(adjust_pge, (void *)1, 1);
         }
         put_online_cpus();
 }
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 17bc87a43ff..d2fbc296452 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -258,13 +258,6 @@ config MTD_ALCHEMY
         help
           Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards
 
-config MTD_MTX1
-        tristate "4G Systems MTX-1 Flash device"
-        depends on MIPS_MTX1 && MTD_CFI
-        help
-          Flash memory access on 4G Systems MTX-1 Board. If you have one of
-          these boards and would like to use the flash chips on it, say 'Y'.
-
 config MTD_DILNETPC
         tristate "CFI Flash device mapped on DIL/Net PC"
         depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 957fb5f70f5..c6ce8673dab 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -65,5 +65,4 @@ obj-$(CONFIG_MTD_DMV182)	+= dmv182.o
 obj-$(CONFIG_MTD_SHARP_SL)      += sharpsl-flash.o
 obj-$(CONFIG_MTD_PLATRAM)       += plat-ram.o
 obj-$(CONFIG_MTD_OMAP_NOR)      += omap_nor.o
-obj-$(CONFIG_MTD_MTX1)          += mtx-1_flash.o
 obj-$(CONFIG_MTD_INTEL_VR_NOR)  += intel_vr_nor.o
diff --git a/drivers/mtd/maps/mtx-1_flash.c b/drivers/mtd/maps/mtx-1_flash.c
deleted file mode 100644
index 2a8fde9b92f..00000000000
--- a/drivers/mtd/maps/mtx-1_flash.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Flash memory access on 4G Systems MTX-1 boards
- *
- * $Id: mtx-1_flash.c,v 1.2 2005/11/07 11:14:27 gleixner Exp $
- *
- * (C) 2005 Bruno Randolf <bruno.randolf@4g-systems.biz>
- * (C) 2005 Joern Engel <joern@wohnheim.fh-wedel.de>
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-
-static struct map_info mtx1_map = {
-        .name = "MTX-1 flash",
-        .bankwidth = 4,
-        .size = 0x2000000,
-        .phys = 0x1E000000,
-};
-
-static struct mtd_partition mtx1_partitions[] = {
-        {
-                .name = "filesystem",
-                .size = 0x01C00000,
-                .offset = 0,
-        },{
-                .name = "yamon",
-                .size = 0x00100000,
-                .offset = MTDPART_OFS_APPEND,
-                .mask_flags = MTD_WRITEABLE,
-        },{
-                .name = "kernel",
-                .size = 0x002c0000,
-                .offset = MTDPART_OFS_APPEND,
-        },{
-                .name = "yamon env",
-                .size = 0x00040000,
-                .offset = MTDPART_OFS_APPEND,
-        }
-};
-
-static struct mtd_info *mtx1_mtd;
-
-int __init mtx1_mtd_init(void)
-{
-        int ret = -ENXIO;
-
-        simple_map_init(&mtx1_map);
-
-        mtx1_map.virt = ioremap(mtx1_map.phys, mtx1_map.size);
-        if (!mtx1_map.virt)
-                return -EIO;
-
-        mtx1_mtd = do_map_probe("cfi_probe", &mtx1_map);
-        if (!mtx1_mtd)
-                goto err;
-
-        mtx1_mtd->owner = THIS_MODULE;
-
-        ret = add_mtd_partitions(mtx1_mtd, mtx1_partitions,
-                        ARRAY_SIZE(mtx1_partitions));
-        if (ret)
-                goto err;
-
-        return 0;
-
-err:
-       iounmap(mtx1_map.virt);
-       return ret;
-}
-
-static void __exit mtx1_mtd_cleanup(void)
-{
-        if (mtx1_mtd) {
-                del_mtd_partitions(mtx1_mtd);
-                map_destroy(mtx1_mtd);
-        }
-        if (mtx1_map.virt)
-                iounmap(mtx1_map.virt);
-}
-
-module_init(mtx1_mtd_init);
-module_exit(mtx1_mtd_cleanup);
-
-MODULE_AUTHOR("Bruno Randolf <bruno.randolf@4g-systems.biz>");
-MODULE_DESCRIPTION("MTX-1 flash map");
-MODULE_LICENSE("GPL");
diff --git a/drivers/net/cxgb3/cxgb3_ctl_defs.h b/drivers/net/cxgb3/cxgb3_ctl_defs.h
index 6c4f3206691..ed0ecd9679c 100644
--- a/drivers/net/cxgb3/cxgb3_ctl_defs.h
+++ b/drivers/net/cxgb3/cxgb3_ctl_defs.h
@@ -54,6 +54,7 @@ enum {
         RDMA_CQ_DISABLE         = 16,
         RDMA_CTRL_QP_SETUP      = 17,
         RDMA_GET_MEM            = 18,
+        RDMA_GET_MIB            = 19,
 
         GET_RX_PAGE_INFO        = 50,
 };
diff --git a/drivers/net/cxgb3/cxgb3_offload.c b/drivers/net/cxgb3/cxgb3_offload.c
index ff9c013ce53..cf269687379 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -303,6 +303,12 @@ static int cxgb_rdma_ctl(struct adapter *adapter, unsigned int req, void *data)
                 spin_unlock_irq(&adapter->sge.reg_lock);
                 break;
         }
+        case RDMA_GET_MIB: {
+                spin_lock(&adapter->stats_lock);
+                t3_tp_get_mib_stats(adapter, (struct tp_mib_stats *)data);
+                spin_unlock(&adapter->stats_lock);
+                break;
+        }
         default:
                 ret = -EOPNOTSUPP;
         }
@@ -381,6 +387,7 @@ static int cxgb_offload_ctl(struct t3cdev *tdev, unsigned int req, void *data)
         case RDMA_CQ_DISABLE:
         case RDMA_CTRL_QP_SETUP:
         case RDMA_GET_MEM:
+        case RDMA_GET_MIB:
                 if (!offload_running(adapter))
                         return -EAGAIN;
                 return cxgb_rdma_ctl(adapter, req, data);
diff --git a/drivers/net/cxgb3/version.h b/drivers/net/cxgb3/version.h
index a0177fc55e2..29db711303b 100644
--- a/drivers/net/cxgb3/version.h
+++ b/drivers/net/cxgb3/version.h
@@ -38,7 +38,7 @@
 #define DRV_VERSION "1.0-ko"
 
 /* Firmware version */
-#define FW_VERSION_MAJOR 6
+#define FW_VERSION_MAJOR 7
 #define FW_VERSION_MINOR 0
 #define FW_VERSION_MICRO 0
 #endif                          /* __CHELSIO_VERSION_H */
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index c36a03ae9bf..860d75d81f8 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -20,7 +20,7 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/string.h>
-#include <linux/list.h>
+#include <linux/rculist.h>
 #include <linux/notifier.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
index d82f2751d2c..2b5006b9be6 100644
--- a/drivers/net/mlx4/fw.c
+++ b/drivers/net/mlx4/fw.c
@@ -101,6 +101,34 @@ static void dump_dev_cap_flags(struct mlx4_dev *dev, u32 flags)
                         mlx4_dbg(dev, "    %s\n", fname[i]);
 }
 
+int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        u32 *inbox;
+        int err = 0;
+
+#define MOD_STAT_CFG_IN_SIZE            0x100
+
+#define MOD_STAT_CFG_PG_SZ_M_OFFSET     0x002
+#define MOD_STAT_CFG_PG_SZ_OFFSET       0x003
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        inbox = mailbox->buf;
+
+        memset(inbox, 0, MOD_STAT_CFG_IN_SIZE);
+
+        MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
+        MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
+
+        err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_MOD_STAT_CFG,
+                        MLX4_CMD_TIME_CLASS_A);
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return err;
+}
+
 int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 {
         struct mlx4_cmd_mailbox *mailbox;
diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h
index 306cb9b0242..a0e046c149b 100644
--- a/drivers/net/mlx4/fw.h
+++ b/drivers/net/mlx4/fw.h
@@ -38,6 +38,11 @@
 #include "mlx4.h"
 #include "icm.h"
 
+struct mlx4_mod_stat_cfg {
+        u8 log_pg_sz;
+        u8 log_pg_sz_m;
+};
+
 struct mlx4_dev_cap {
         int max_srq_sz;
         int max_qp_sz;
@@ -162,5 +167,6 @@ int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages);
 int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm);
 int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev);
 int mlx4_NOP(struct mlx4_dev *dev);
+int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg);
 
 #endif /* MLX4_FW_H */
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index a6aa49fc1d6..d3736013fe9 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -485,6 +485,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
         struct mlx4_priv          *priv = mlx4_priv(dev);
         struct mlx4_adapter        adapter;
         struct mlx4_dev_cap        dev_cap;
+        struct mlx4_mod_stat_cfg   mlx4_cfg;
         struct mlx4_profile        profile;
         struct mlx4_init_hca_param init_hca;
         u64 icm_size;
@@ -502,6 +503,12 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
                 return err;
         }
 
+        mlx4_cfg.log_pg_sz_m = 1;
+        mlx4_cfg.log_pg_sz = 0;
+        err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
+        if (err)
+                mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
+
         err = mlx4_dev_cap(dev, &dev_cap);
         if (err) {
                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
index 57f7f1f0d4e..b4b57870ddf 100644
--- a/drivers/net/mlx4/mcg.c
+++ b/drivers/net/mlx4/mcg.c
@@ -38,6 +38,9 @@
 
 #include "mlx4.h"
 
+#define MGM_QPN_MASK       0x00FFFFFF
+#define MGM_BLCK_LB_BIT    30
+
 struct mlx4_mgm {
         __be32                  next_gid_index;
         __be32                  members_count;
@@ -153,7 +156,8 @@ static int find_mgm(struct mlx4_dev *dev,
         return err;
 }
 
-int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
+int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+                          int block_mcast_loopback)
 {
         struct mlx4_priv *priv = mlx4_priv(dev);
         struct mlx4_cmd_mailbox *mailbox;
@@ -202,13 +206,18 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
         }
 
         for (i = 0; i < members_count; ++i)
-                if (mgm->qp[i] == cpu_to_be32(qp->qpn)) {
+                if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) {
                         mlx4_dbg(dev, "QP %06x already a member of MGM\n", qp->qpn);
                         err = 0;
                         goto out;
                 }
 
-        mgm->qp[members_count++] = cpu_to_be32(qp->qpn);
+        if (block_mcast_loopback)
+                mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
+                                                       (1 << MGM_BLCK_LB_BIT));
+        else
+                mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
+
         mgm->members_count       = cpu_to_be32(members_count);
 
         err = mlx4_WRITE_MCG(dev, index, mailbox);
@@ -283,7 +292,7 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
 
         members_count = be32_to_cpu(mgm->members_count);
         for (loc = -1, i = 0; i < members_count; ++i)
-                if (mgm->qp[i] == cpu_to_be32(qp->qpn))
+                if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn)
                         loc = i;
 
         if (loc == -1) {
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index ced3eebe252..84bb6162837 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -389,7 +389,7 @@ static u8 orc_load_firmware(struct orc_host * host)
 
         outb(PRGMRST | DOWNLOAD, host->base + ORC_RISCCTL);     /* Enable SRAM programming */
         data32_ptr = (u8 *) & data32;
-        data32 = 0;             /* Initial FW address to 0 */
+        data32 = cpu_to_le32(0);                /* Initial FW address to 0 */
         outw(0x0010, host->base + ORC_EBIOSADR0);
         *data32_ptr = inb(host->base + ORC_EBIOSDATA);          /* Read from BIOS */
         outw(0x0011, host->base + ORC_EBIOSADR0);
@@ -397,18 +397,19 @@ static u8 orc_load_firmware(struct orc_host * host)
         outw(0x0012, host->base + ORC_EBIOSADR0);
         *(data32_ptr + 2) = inb(host->base + ORC_EBIOSDATA);    /* Read from BIOS */
         outw(*(data32_ptr + 2), host->base + ORC_EBIOSADR2);
-        outl(data32, host->base + ORC_FWBASEADR);               /* Write FW address */
+        outl(le32_to_cpu(data32), host->base + ORC_FWBASEADR);          /* Write FW address */
 
         /* Copy the code from the BIOS to the SRAM */
 
-        bios_addr = (u16) data32;       /* FW code locate at BIOS address + ? */
+        udelay(500);    /* Required on Sun Ultra 5 ... 350 -> failures */
+        bios_addr = (u16) le32_to_cpu(data32);  /* FW code locate at BIOS address + ? */
         for (i = 0, data32_ptr = (u8 *) & data32;       /* Download the code    */
              i < 0x1000;        /* Firmware code size = 4K      */
              i++, bios_addr++) {
                 outw(bios_addr, host->base + ORC_EBIOSADR0);
                 *data32_ptr++ = inb(host->base + ORC_EBIOSDATA);        /* Read from BIOS */
                 if ((i % 4) == 3) {
-                        outl(data32, host->base + ORC_RISCRAM); /* Write every 4 bytes */
+                        outl(le32_to_cpu(data32), host->base + ORC_RISCRAM);    /* Write every 4 bytes */
                         data32_ptr = (u8 *) & data32;
                 }
         }
@@ -423,7 +424,7 @@ static u8 orc_load_firmware(struct orc_host * host)
                 outw(bios_addr, host->base + ORC_EBIOSADR0);
                 *data32_ptr++ = inb(host->base + ORC_EBIOSDATA);        /* Read from BIOS */
                 if ((i % 4) == 3) {
-                        if (inl(host->base + ORC_RISCRAM) != data32) {
+                        if (inl(host->base + ORC_RISCRAM) != le32_to_cpu(data32)) {
                                 outb(PRGMRST, host->base + ORC_RISCCTL);        /* Reset program to 0 */
                                 outb(data, host->base + ORC_GCFG);      /*Disable EEPROM programming */
                                 return 0;
@@ -459,8 +460,8 @@ static void setup_SCBs(struct orc_host * host)
 
         for (i = 0; i < ORC_MAXQUEUE; i++) {
                 escb_phys = (host->escb_phys + (sizeof(struct orc_extended_scb) * i));
-                scb->sg_addr = (u32) escb_phys;
-                scb->sense_addr = (u32) escb_phys;
+                scb->sg_addr = cpu_to_le32((u32) escb_phys);
+                scb->sense_addr = cpu_to_le32((u32) escb_phys);
                 scb->escb = escb;
                 scb->scbidx = i;
                 scb++;
@@ -642,8 +643,8 @@ static int orc_device_reset(struct orc_host * host, struct scsi_cmnd *cmd, unsig
         scb->link = 0xFF;
         scb->reserved0 = 0;
         scb->reserved1 = 0;
-        scb->xferlen = 0;
-        scb->sg_len = 0;
+        scb->xferlen = cpu_to_le32(0);
+        scb->sg_len = cpu_to_le32(0);
 
         escb->srb = NULL;
         escb->srb = cmd;
@@ -839,7 +840,7 @@ static irqreturn_t orc_interrupt(struct orc_host * host)
  *      Build a host adapter control block from the SCSI mid layer command
  */
 
-static void inia100_build_scb(struct orc_host * host, struct orc_scb * scb, struct scsi_cmnd * cmd)
+static int inia100_build_scb(struct orc_host * host, struct orc_scb * scb, struct scsi_cmnd * cmd)
 {                               /* Create corresponding SCB     */
         struct scatterlist *sg;
         struct orc_sgent *sgent;                /* Pointer to SG list           */
@@ -858,28 +859,30 @@ static void inia100_build_scb(struct orc_host * host, struct orc_scb * scb, stru
         scb->lun = cmd->device->lun;
         scb->reserved0 = 0;
         scb->reserved1 = 0;
-        scb->sg_len = 0;
+        scb->sg_len = cpu_to_le32(0);
 
-        scb->xferlen = (u32) scsi_bufflen(cmd);
+        scb->xferlen = cpu_to_le32((u32) scsi_bufflen(cmd));
         sgent = (struct orc_sgent *) & escb->sglist[0];
 
         count_sg = scsi_dma_map(cmd);
-        BUG_ON(count_sg < 0);
+        if (count_sg < 0)
+                return count_sg;
+        BUG_ON(count_sg > TOTAL_SG_ENTRY);
 
         /* Build the scatter gather lists */
         if (count_sg) {
-                scb->sg_len = (u32) (count_sg * 8);
+                scb->sg_len = cpu_to_le32((u32) (count_sg * 8));
                 scsi_for_each_sg(cmd, sg, count_sg, i) {
-                        sgent->base = (u32) sg_dma_address(sg);
-                        sgent->length = (u32) sg_dma_len(sg);
+                        sgent->base = cpu_to_le32((u32) sg_dma_address(sg));
+                        sgent->length = cpu_to_le32((u32) sg_dma_len(sg));
                         sgent++;
                 }
         } else {
-                scb->sg_len = 0;
-                sgent->base = 0;
-                sgent->length = 0;
+                scb->sg_len = cpu_to_le32(0);
+                sgent->base = cpu_to_le32(0);
+                sgent->length = cpu_to_le32(0);
         }
-        scb->sg_addr = (u32) scb->sense_addr;
+        scb->sg_addr = (u32) scb->sense_addr;   /* sense_addr is already little endian */
         scb->hastat = 0;
         scb->tastat = 0;
         scb->link = 0xFF;
@@ -896,6 +899,7 @@ static void inia100_build_scb(struct orc_host * host, struct orc_scb * scb, stru
                 scb->tag_msg = 0;       /* No tag support               */
         }
         memcpy(scb->cdb, cmd->cmnd, scb->cdb_len);
+        return 0;
 }
 
 /**
@@ -919,7 +923,10 @@ static int inia100_queue(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd
         if ((scb = orc_alloc_scb(host)) == NULL)
                 return SCSI_MLQUEUE_HOST_BUSY;
 
-        inia100_build_scb(host, scb, cmd);
+        if (inia100_build_scb(host, scb, cmd)) {
+                orc_release_scb(host, scb);
+                return SCSI_MLQUEUE_HOST_BUSY;
+        }
         orc_exec_scb(host, scb);        /* Start execute SCB            */
         return 0;
 }
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 44d8d5163a1..683bce375c7 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -60,6 +60,13 @@
 
 #define IDESCSI_DEBUG_LOG               0
 
+#if IDESCSI_DEBUG_LOG
+#define debug_log(fmt, args...) \
+        printk(KERN_INFO "ide-scsi: " fmt, ## args)
+#else
+#define debug_log(fmt, args...) do {} while (0)
+#endif
+
 /*
  *      SCSI command transformation layer
  */
@@ -129,14 +136,15 @@ static inline idescsi_scsi_t *drive_to_idescsi(ide_drive_t *ide_drive)
 #define IDESCSI_PC_RQ                   90
 
 /*
- *      PIO data transfer routines using the scatter gather table.
+ *      PIO data transfer routine using the scatter gather table.
  */
-static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
-                unsigned int bcount)
+static void ide_scsi_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
+                                unsigned int bcount, int write)
 {
         ide_hwif_t *hwif = drive->hwif;
-        int count;
+        xfer_func_t *xf = write ? hwif->output_data : hwif->input_data;
         char *buf;
+        int count;
 
         while (bcount) {
                 count = min(pc->sg->length - pc->b_count, bcount);
@@ -145,13 +153,13 @@ static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
 
                         local_irq_save(flags);
                         buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) +
-                                        pc->sg->offset;
-                        hwif->input_data(drive, NULL, buf + pc->b_count, count);
+                                          pc->sg->offset;
+                        xf(drive, NULL, buf + pc->b_count, count);
                         kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
                         local_irq_restore(flags);
                 } else {
                         buf = sg_virt(pc->sg);
-                        hwif->input_data(drive, NULL, buf + pc->b_count, count);
+                        xf(drive, NULL, buf + pc->b_count, count);
                 }
                 bcount -= count; pc->b_count += count;
                 if (pc->b_count == pc->sg->length) {
@@ -163,51 +171,34 @@ static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
         }
 
         if (bcount) {
-                printk (KERN_ERR "ide-scsi: scatter gather table too small, discarding data\n");
-                ide_pad_transfer(drive, 0, bcount);
+                printk(KERN_ERR "%s: scatter gather table too small, %s\n",
+                                drive->name, write ? "padding with zeros"
+                                                   : "discarding data");
+                ide_pad_transfer(drive, write, bcount);
         }
 }
 
-static void idescsi_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
-                unsigned int bcount)
+static void ide_scsi_hex_dump(u8 *data, int len)
 {
-        ide_hwif_t *hwif = drive->hwif;
-        int count;
-        char *buf;
+        print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, data, len, 0);
+}
 
-        while (bcount) {
-                count = min(pc->sg->length - pc->b_count, bcount);
-                if (PageHighMem(sg_page(pc->sg))) {
-                        unsigned long flags;
+static int idescsi_end_request(ide_drive_t *, int, int);
 
-                        local_irq_save(flags);
-                        buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) +
-                                                pc->sg->offset;
-                        hwif->output_data(drive, NULL, buf + pc->b_count, count);
-                        kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
-                        local_irq_restore(flags);
-                } else {
-                        buf = sg_virt(pc->sg);
-                        hwif->output_data(drive, NULL, buf + pc->b_count, count);
-                }
-                bcount -= count; pc->b_count += count;
-                if (pc->b_count == pc->sg->length) {
-                        if (!--pc->sg_cnt)
-                                break;
-                        pc->sg = sg_next(pc->sg);
-                        pc->b_count = 0;
-                }
-        }
+static void ide_scsi_callback(ide_drive_t *drive)
+{
+        idescsi_scsi_t *scsi = drive_to_idescsi(drive);
+        struct ide_atapi_pc *pc = scsi->pc;
 
-        if (bcount) {
-                printk (KERN_ERR "ide-scsi: scatter gather table too small, padding with zeros\n");
-                ide_pad_transfer(drive, 1, bcount);
-        }
-}
+        if (pc->flags & PC_FLAG_TIMEDOUT)
+                debug_log("%s: got timed out packet %lu at %lu\n", __func__,
+                          pc->scsi_cmd->serial_number, jiffies);
+                /* end this request now - scsi should retry it*/
+        else if (test_bit(IDESCSI_LOG_CMD, &scsi->log))
+                printk(KERN_INFO "Packet command completed, %d bytes"
+                                 " transferred\n", pc->xferred);
 
-static void ide_scsi_hex_dump(u8 *data, int len)
-{
-        print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, data, len, 0);
+        idescsi_end_request(drive, 1, 0);
 }
 
 static int idescsi_check_condition(ide_drive_t *drive,
@@ -228,14 +219,16 @@ static int idescsi_check_condition(ide_drive_t *drive,
                 kfree(pc);
                 return -ENOMEM;
         }
-        ide_init_drive_cmd(rq);
+        blk_rq_init(NULL, rq);
         rq->special = (char *) pc;
         pc->rq = rq;
         pc->buf = buf;
         pc->c[0] = REQUEST_SENSE;
         pc->c[4] = pc->req_xfer = pc->buf_size = SCSI_SENSE_BUFFERSIZE;
         rq->cmd_type = REQ_TYPE_SENSE;
+        rq->cmd_flags |= REQ_PREEMPT;
         pc->timeout = jiffies + WAIT_READY;
+        pc->callback = ide_scsi_callback;
         /* NOTE! Save the failed packet command in "rq->buffer" */
         rq->buffer = (void *) failed_cmd->special;
         pc->scsi_cmd = ((struct ide_atapi_pc *) failed_cmd->special)->scsi_cmd;
@@ -244,11 +237,10 @@ static int idescsi_check_condition(ide_drive_t *drive,
                 ide_scsi_hex_dump(pc->c, 6);
         }
         rq->rq_disk = scsi->disk;
-        return ide_do_drive_cmd(drive, rq, ide_preempt);
+        ide_do_drive_cmd(drive, rq);
+        return 0;
 }
 
-static int idescsi_end_request(ide_drive_t *, int, int);
-
 static ide_startstop_t
 idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
 {
@@ -256,7 +248,7 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
 
         if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT))
                 /* force an abort */
-                hwif->OUTBSYNC(drive, WIN_IDLEIMMEDIATE,
+                hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE,
                                hwif->io_ports.command_addr);
 
         rq->errors++;
@@ -269,10 +261,9 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
 static ide_startstop_t
 idescsi_atapi_abort(ide_drive_t *drive, struct request *rq)
 {
-#if IDESCSI_DEBUG_LOG
-        printk(KERN_WARNING "idescsi_atapi_abort called for %lu\n",
+        debug_log("%s called for %lu\n", __func__,
                 ((struct ide_atapi_pc *) rq->special)->scsi_cmd->serial_number);
-#endif
+
         rq->errors |= ERROR_MAX;
 
         idescsi_end_request(drive, 0, 0);
@@ -351,9 +342,9 @@ static int idescsi_expiry(ide_drive_t *drive)
         idescsi_scsi_t *scsi = drive_to_idescsi(drive);
         struct ide_atapi_pc   *pc   = scsi->pc;
 
-#if IDESCSI_DEBUG_LOG
-        printk(KERN_WARNING "idescsi_expiry called for %lu at %lu\n", pc->scsi_cmd->serial_number, jiffies);
-#endif
+        debug_log("%s called for %lu at %lu\n", __func__,
+                  pc->scsi_cmd->serial_number, jiffies);
+
         pc->flags |= PC_FLAG_TIMEDOUT;
 
         return 0;                                       /* we do not want the ide subsystem to retry */
@@ -365,141 +356,19 @@ static int idescsi_expiry(ide_drive_t *drive)
 static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
 {
         idescsi_scsi_t *scsi = drive_to_idescsi(drive);
-        ide_hwif_t *hwif = drive->hwif;
         struct ide_atapi_pc *pc = scsi->pc;
-        struct request *rq = pc->rq;
-        unsigned int temp;
-        u16 bcount;
-        u8 stat, ireason;
-
-#if IDESCSI_DEBUG_LOG
-        printk (KERN_INFO "ide-scsi: Reached idescsi_pc_intr interrupt handler\n");
-#endif /* IDESCSI_DEBUG_LOG */
-
-        if (pc->flags & PC_FLAG_TIMEDOUT) {
-#if IDESCSI_DEBUG_LOG
-                printk(KERN_WARNING "idescsi_pc_intr: got timed out packet  %lu at %lu\n",
-                                pc->scsi_cmd->serial_number, jiffies);
-#endif
-                /* end this request now - scsi should retry it*/
-                idescsi_end_request (drive, 1, 0);
-                return ide_stopped;
-        }
-        if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
-                pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
-#if IDESCSI_DEBUG_LOG
-                printk ("ide-scsi: %s: DMA complete\n", drive->name);
-#endif /* IDESCSI_DEBUG_LOG */
-                pc->xferred = pc->req_xfer;
-                (void)hwif->dma_ops->dma_end(drive);
-        }
-
-        /* Clear the interrupt */
-        stat = ide_read_status(drive);
-
-        if ((stat & DRQ_STAT) == 0) {
-                /* No more interrupts */
-                if (test_bit(IDESCSI_LOG_CMD, &scsi->log))
-                        printk(KERN_INFO "Packet command completed, %d bytes"
-                                        " transferred\n", pc->xferred);
-                local_irq_enable_in_hardirq();
-                if (stat & ERR_STAT)
-                        rq->errors++;
-                idescsi_end_request (drive, 1, 0);
-                return ide_stopped;
-        }
-        bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) |
-                  hwif->INB(hwif->io_ports.lbam_addr);
-        ireason = hwif->INB(hwif->io_ports.nsect_addr);
-
-        if (ireason & CD) {
-                printk(KERN_ERR "ide-scsi: CoD != 0 in idescsi_pc_intr\n");
-                return ide_do_reset (drive);
-        }
-        if (ireason & IO) {
-                temp = pc->xferred + bcount;
-                if (temp > pc->req_xfer) {
-                        if (temp > pc->buf_size) {
-                                printk(KERN_ERR "ide-scsi: The scsi wants to "
-                                        "send us more data than expected "
-                                        "- discarding data\n");
-                                temp = pc->buf_size - pc->xferred;
-                                if (temp) {
-                                        pc->flags &= ~PC_FLAG_WRITING;
-                                        if (pc->sg)
-                                                idescsi_input_buffers(drive, pc,
-                                                                        temp);
-                                        else
-                                                hwif->input_data(drive, NULL,
-                                                        pc->cur_pos, temp);
-                                        printk(KERN_ERR "ide-scsi: transferred"
-                                                        " %d of %d bytes\n",
-                                                        temp, bcount);
-                                }
-                                pc->xferred += temp;
-                                pc->cur_pos += temp;
-                                ide_pad_transfer(drive, 0, bcount - temp);
-                                ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry);
-                                return ide_started;
-                        }
-#if IDESCSI_DEBUG_LOG
-                        printk (KERN_NOTICE "ide-scsi: The scsi wants to send us more data than expected - allowing transfer\n");
-#endif /* IDESCSI_DEBUG_LOG */
-                }
-        }
-        if (ireason & IO) {
-                pc->flags &= ~PC_FLAG_WRITING;
-                if (pc->sg)
-                        idescsi_input_buffers(drive, pc, bcount);
-                else
-                        hwif->input_data(drive, NULL, pc->cur_pos, bcount);
-        } else {
-                pc->flags |= PC_FLAG_WRITING;
-                if (pc->sg)
-                        idescsi_output_buffers(drive, pc, bcount);
-                else
-                        hwif->output_data(drive, NULL, pc->cur_pos, bcount);
-        }
-        /* Update the current position */
-        pc->xferred += bcount;
-        pc->cur_pos += bcount;
 
-        /* And set the interrupt handler again */
-        ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry);
-        return ide_started;
+        return ide_pc_intr(drive, pc, idescsi_pc_intr, get_timeout(pc),
+                           idescsi_expiry, NULL, NULL, NULL,
+                           ide_scsi_io_buffers);
 }
 
 static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive)
 {
-        ide_hwif_t *hwif = drive->hwif;
         idescsi_scsi_t *scsi = drive_to_idescsi(drive);
-        struct ide_atapi_pc *pc = scsi->pc;
-        ide_startstop_t startstop;
-        u8 ireason;
 
-        if (ide_wait_stat(&startstop,drive,DRQ_STAT,BUSY_STAT,WAIT_READY)) {
-                printk(KERN_ERR "ide-scsi: Strange, packet command "
-                        "initiated yet DRQ isn't asserted\n");
-                return startstop;
-        }
-        ireason = hwif->INB(hwif->io_ports.nsect_addr);
-        if ((ireason & CD) == 0 || (ireason & IO)) {
-                printk(KERN_ERR "ide-scsi: (IO,CoD) != (0,1) while "
-                                "issuing a packet command\n");
-                return ide_do_reset (drive);
-        }
-        BUG_ON(HWGROUP(drive)->handler != NULL);
-        /* Set the interrupt routine */
-        ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry);
-
-        /* Send the actual packet */
-        hwif->output_data(drive, NULL, scsi->pc->c, 12);
-
-        if (pc->flags & PC_FLAG_DMA_OK) {
-                pc->flags |= PC_FLAG_DMA_IN_PROGRESS;
-                hwif->dma_ops->dma_start(drive);
-        }
-        return ide_started;
+        return ide_transfer_pc(drive, scsi->pc, idescsi_pc_intr,
+                               get_timeout(scsi->pc), idescsi_expiry);
 }
 
 static inline int idescsi_set_direction(struct ide_atapi_pc *pc)
@@ -545,38 +414,12 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive,
                 struct ide_atapi_pc *pc)
 {
         idescsi_scsi_t *scsi = drive_to_idescsi(drive);
-        ide_hwif_t *hwif = drive->hwif;
-        u16 bcount;
-        u8 dma = 0;
 
         /* Set the current packet command */
         scsi->pc = pc;
-        /* We haven't transferred any data yet */
-        pc->xferred = 0;
-        pc->cur_pos = pc->buf;
-        /* Request to transfer the entire buffer at once */
-        bcount = min(pc->req_xfer, 63 * 1024);
-
-        if (drive->using_dma && !idescsi_map_sg(drive, pc)) {
-                hwif->sg_mapped = 1;
-                dma = !hwif->dma_ops->dma_setup(drive);
-                hwif->sg_mapped = 0;
-        }
-
-        ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK, bcount, dma);
 
-        if (dma)
-                pc->flags |= PC_FLAG_DMA_OK;
-
-        if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags)) {
-                ide_execute_command(drive, WIN_PACKETCMD, &idescsi_transfer_pc,
-                                    get_timeout(pc), idescsi_expiry);
-                return ide_started;
-        } else {
-                /* Issue the packet command */
-                ide_execute_pkt_cmd(drive);
-                return idescsi_transfer_pc(drive);
-        }
+        return ide_issue_pc(drive, pc, idescsi_transfer_pc,
+                            get_timeout(pc), idescsi_expiry);
 }
 
 /*
@@ -584,14 +427,22 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive,
  */
 static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *rq, sector_t block)
 {
-#if IDESCSI_DEBUG_LOG
-        printk (KERN_INFO "dev: %s, cmd: %x, errors: %d\n", rq->rq_disk->disk_name,rq->cmd[0],rq->errors);
-        printk (KERN_INFO "sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n",rq->sector,rq->nr_sectors,rq->current_nr_sectors);
-#endif /* IDESCSI_DEBUG_LOG */
+        debug_log("dev: %s, cmd: %x, errors: %d\n", rq->rq_disk->disk_name,
+                  rq->cmd[0], rq->errors);
+        debug_log("sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n",
+                  rq->sector, rq->nr_sectors, rq->current_nr_sectors);
 
         if (blk_sense_request(rq) || blk_special_request(rq)) {
-                return idescsi_issue_pc(drive,
-                                (struct ide_atapi_pc *) rq->special);
+                struct ide_atapi_pc *pc = (struct ide_atapi_pc *)rq->special;
+                idescsi_scsi_t *scsi = drive_to_idescsi(drive);
+
+                if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags))
+                        pc->flags |= PC_FLAG_DRQ_INTERRUPT;
+
+                if (drive->using_dma && !idescsi_map_sg(drive, pc))
+                        pc->flags |= PC_FLAG_DMA_OK;
+
+                return idescsi_issue_pc(drive, pc);
         }
         blk_dump_rq_flags(rq, "ide-scsi: unsup command");
         idescsi_end_request (drive, 0, 0);
@@ -646,6 +497,8 @@ static void ide_scsi_remove(ide_drive_t *drive)
         put_disk(g);
 
         ide_scsi_put(scsi);
+
+        drive->scsi = 0;
 }
 
 static int ide_scsi_probe(ide_drive_t *);
@@ -765,6 +618,8 @@ static int idescsi_queue (struct scsi_cmnd *cmd,
 
         memset (pc->c, 0, 12);
         pc->flags = 0;
+        if (cmd->sc_data_direction == DMA_TO_DEVICE)
+                pc->flags |= PC_FLAG_WRITING;
         pc->rq = rq;
         memcpy (pc->c, cmd->cmnd, cmd->cmd_len);
         pc->buf = NULL;
@@ -775,6 +630,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd,
         pc->scsi_cmd = cmd;
         pc->done = done;
         pc->timeout = jiffies + cmd->timeout_per_command;
+        pc->callback = ide_scsi_callback;
 
         if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) {
                 printk ("ide-scsi: %s: que %lu, cmd = ", drive->name, cmd->serial_number);
@@ -785,12 +641,11 @@ static int idescsi_queue (struct scsi_cmnd *cmd,
                 }
         }
 
-        ide_init_drive_cmd (rq);
+        blk_rq_init(NULL, rq);
         rq->special = (char *) pc;
         rq->cmd_type = REQ_TYPE_SPECIAL;
         spin_unlock_irq(host->host_lock);
-        rq->rq_disk = scsi->disk;
-        (void) ide_do_drive_cmd (drive, rq, ide_end);
+        blk_execute_rq_nowait(drive->queue, scsi->disk, rq, 0, NULL);
         spin_lock_irq(host->host_lock);
         return 0;
 abort:
@@ -985,6 +840,8 @@ static int ide_scsi_probe(ide_drive_t *drive)
             !(host = scsi_host_alloc(&idescsi_template,sizeof(idescsi_scsi_t))))
                 return -ENODEV;
 
+        drive->scsi = 1;
+
         g = alloc_disk(1 << PARTN_BITS);
         if (!g)
                 goto out_host_put;
@@ -993,10 +850,10 @@ static int ide_scsi_probe(ide_drive_t *drive)
 
         host->max_id = 1;
 
-#if IDESCSI_DEBUG_LOG
         if (drive->id->last_lun)
-                printk(KERN_NOTICE "%s: id->last_lun=%u\n", drive->name, drive->id->last_lun);
-#endif
+                debug_log("%s: id->last_lun=%u\n", drive->name,
+                          drive->id->last_lun);
+
         if ((drive->id->last_lun & 0x7) != 7)
                 host->max_lun = (drive->id->last_lun & 0x7) + 1;
         else
@@ -1025,6 +882,7 @@ static int ide_scsi_probe(ide_drive_t *drive)
 
         put_disk(g);
 out_host_put:
+        drive->scsi = 0;
         scsi_host_put(host);
         return err;
 }
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 01cefbb2d53..d53312c4254 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1124,6 +1124,8 @@ sd_spinup_disk(struct scsi_disk *sdkp)
                                 cmd[1] = 1;     /* Return immediately */
                                 memset((void *) &cmd[2], 0, 8);
                                 cmd[4] = 1;     /* Start spin cycle */
+                                if (sdkp->device->start_stop_pwr_cond)
+                                        cmd[4] |= 1 << 4;
                                 scsi_execute_req(sdkp->device, cmd, DMA_NONE,
                                                  NULL, 0, &sshdr,
                                                  SD_TIMEOUT, SD_MAX_RETRIES);
@@ -1790,6 +1792,9 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
         if (start)
                 cmd[4] |= 1;    /* START */
 
+        if (sdp->start_stop_pwr_cond)
+                cmd[4] |= start ? 1 << 4 : 3 << 4;      /* Active or Standby */
+
         if (!scsi_device_online(sdp))
                 return -ENODEV;
 
diff --git a/drivers/video/fb_ddc.c b/drivers/video/fb_ddc.c
index a0df63289b5..0cf96eb8a60 100644
--- a/drivers/video/fb_ddc.c
+++ b/drivers/video/fb_ddc.c
@@ -106,6 +106,7 @@ unsigned char *fb_ddc_read(struct i2c_adapter *adapter)
         algo_data->setsda(algo_data->data, 1);
         algo_data->setscl(algo_data->data, 1);
 
+        adapter->class |= I2C_CLASS_DDC;
         return edid;
 }
 
diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index ca95f09d8b4..fcf9fadbf57 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -100,7 +100,8 @@ static int intelfb_gpio_getsda(void *data)
 
 static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo,
                                  struct intelfb_i2c_chan *chan,
-                                 const u32 reg, const char *name)
+                                 const u32 reg, const char *name,
+                                 int class)
 {
         int rc;
 
@@ -108,6 +109,7 @@ static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo,
         chan->reg                       = reg;
         snprintf(chan->adapter.name, sizeof(chan->adapter.name),
                  "intelfb %s", name);
+        chan->adapter.class             = class;
         chan->adapter.owner             = THIS_MODULE;
         chan->adapter.id                = I2C_HW_B_INTELFB;
         chan->adapter.algo_data         = &chan->algo;
@@ -145,7 +147,7 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
 
         /* setup the DDC bus for analog output */
         intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus, GPIOA,
-                              "CRTDDC_A");
+                              "CRTDDC_A", I2C_CLASS_DDC);
         i++;
 
         /* need to add the output busses for each device
@@ -159,9 +161,9 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
         case INTEL_865G:
                 dinfo->output[i].type = INTELFB_OUTPUT_DVO;
                 intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus,
-                                      GPIOD, "DVODDC_D");
+                                      GPIOD, "DVODDC_D", I2C_CLASS_DDC);
                 intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus,
-                                      GPIOE, "DVOI2C_E");
+                                      GPIOE, "DVOI2C_E", 0);
                 i++;
                 break;
         case INTEL_915G:
@@ -174,7 +176,7 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
                 /* SDVO ports have a single control bus - 2 devices */
                 dinfo->output[i].type = INTELFB_OUTPUT_SDVO;
                 intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus,
-                                      GPIOE, "SDVOCTRL_E");
+                                      GPIOE, "SDVOCTRL_E", 0);
                 /* TODO: initialize the SDVO */
                 /* I830SDVOInit(pScrn, i, DVOB); */
                 i++;
diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c
index 4baab7be58d..75ee5a12e54 100644
--- a/drivers/video/matrox/i2c-matroxfb.c
+++ b/drivers/video/matrox/i2c-matroxfb.c
@@ -104,7 +104,9 @@ static struct i2c_algo_bit_data matrox_i2c_algo_template =
 };
 
 static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo, 
-                unsigned int data, unsigned int clock, const char* name) {
+                unsigned int data, unsigned int clock, const char *name,
+                int class)
+{
         int err;
 
         b->minfo = minfo;
@@ -114,6 +116,7 @@ static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo,
         snprintf(b->adapter.name, sizeof(b->adapter.name), name,
                 minfo->fbcon.node);
         i2c_set_adapdata(&b->adapter, b);
+        b->adapter.class = class;
         b->adapter.algo_data = &b->bac;
         b->adapter.dev.parent = &ACCESS_FBINFO(pcidev)->dev;
         b->bac = matrox_i2c_algo_template;
@@ -159,22 +162,29 @@ static void* i2c_matroxfb_probe(struct matrox_fb_info* minfo) {
         switch (ACCESS_FBINFO(chip)) {
                 case MGA_2064:
                 case MGA_2164:
-                        err = i2c_bus_reg(&m2info->ddc1, minfo, DDC1B_DATA, DDC1B_CLK, "DDC:fb%u #0");
+                        err = i2c_bus_reg(&m2info->ddc1, minfo,
+                                          DDC1B_DATA, DDC1B_CLK,
+                                          "DDC:fb%u #0", I2C_CLASS_DDC);
                         break;
                 default:
-                        err = i2c_bus_reg(&m2info->ddc1, minfo, DDC1_DATA, DDC1_CLK, "DDC:fb%u #0");
+                        err = i2c_bus_reg(&m2info->ddc1, minfo,
+                                          DDC1_DATA, DDC1_CLK,
+                                          "DDC:fb%u #0", I2C_CLASS_DDC);
                         break;
         }
         if (err)
                 goto fail_ddc1;
         if (ACCESS_FBINFO(devflags.dualhead)) {
-                err = i2c_bus_reg(&m2info->ddc2, minfo, DDC2_DATA, DDC2_CLK, "DDC:fb%u #1");
+                err = i2c_bus_reg(&m2info->ddc2, minfo,
+                                  DDC2_DATA, DDC2_CLK,
+                                  "DDC:fb%u #1", I2C_CLASS_DDC);
                 if (err == -ENODEV) {
                         printk(KERN_INFO "i2c-matroxfb: VGA->TV plug detected, DDC unavailable.\n");
                 } else if (err)
                         printk(KERN_INFO "i2c-matroxfb: Could not register secondary output i2c bus. Continuing anyway.\n");
                 /* Register maven bus even on G450/G550 */
-                err = i2c_bus_reg(&m2info->maven, minfo, MAT_DATA, MAT_CLK, "MAVEN:fb%u");
+                err = i2c_bus_reg(&m2info->maven, minfo,
+                                  MAT_DATA, MAT_CLK, "MAVEN:fb%u", 0);
                 if (err)
                         printk(KERN_INFO "i2c-matroxfb: Could not register Maven i2c bus. Continuing anyway.\n");
         }
diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index c1ba0db4850..770824458d4 100644
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -55,7 +55,7 @@ static void __booke_wdt_ping(void *data)
 
 static void booke_wdt_ping(void)
 {
-        on_each_cpu(__booke_wdt_ping, NULL, 0, 0);
+        on_each_cpu(__booke_wdt_ping, NULL, 0);
 }
 
 static void __booke_wdt_enable(void *data)
@@ -131,7 +131,7 @@ static int booke_wdt_open(struct inode *inode, struct file *file)
         spin_lock(&booke_wdt_lock);
         if (booke_wdt_enabled == 0) {
                 booke_wdt_enabled = 1;
-                on_each_cpu(__booke_wdt_enable, NULL, 0, 0);
+                on_each_cpu(__booke_wdt_enable, NULL, 0);
                 printk(KERN_INFO "PowerPC Book-E Watchdog Timer Enabled "
                                 "(wdt_period=%d)\n", booke_wdt_period);
         }
@@ -177,7 +177,7 @@ static int __init booke_wdt_init(void)
         if (booke_wdt_enabled == 1) {
                 printk(KERN_INFO "PowerPC Book-E Watchdog Timer Enabled "
                                 "(wdt_period=%d)\n", booke_wdt_period);
-                on_each_cpu(__booke_wdt_enable, NULL, 0, 0);
+                on_each_cpu(__booke_wdt_enable, NULL, 0);
         }
         spin_unlock(&booke_wdt_lock);
 
diff --git a/firmware/Makefile b/firmware/Makefile
index 10028ace2de..e4f2fb3d191 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -34,8 +34,6 @@ fw-shipped-$(CONFIG_SND_SB16_CSP) += sb16/mulaw_main.csp sb16/alaw_main.csp \
                                      sb16/ima_adpcm_capture.csp
 fw-shipped-$(CONFIG_SND_YMFPCI) += yamaha/ds1_ctrl.fw yamaha/ds1_dsp.fw \
                                    yamaha/ds1e_ctrl.fw
-fw-shipped-$(CONFIG_TIGON3) += tigon/tg3.bin tigon/tg3_tso.bin \
-                               tigon/tg3_tso5.bin
 fw-shipped-$(CONFIG_USB_DABUSB) += dabusb/firmware.fw dabusb/bitstream.bin
 fw-shipped-$(CONFIG_USB_EMI26) += emi26/loader.fw emi26/firmware.fw \
                                   emi26/bitstream.fw
@@ -136,7 +134,7 @@ $(patsubst %,$(obj)/%.gen.S, $(fw-shipped-y)): %: $(wordsize_deps) \
                 | $(objtree)/$$(dir %)
         $(call cmd,fwbin,$(patsubst %.gen.S,%,$@))
 $(patsubst %,$(obj)/%.gen.S, $(fw-external-y)): %: $(wordsize_deps) \
-                include/config/builtin/firmware/dir.h | $(objtree)/$$(dir %)
+                include/config/extra/firmware/dir.h | $(objtree)/$$(dir %)
         $(call cmd,fwbin,$(fwabs)/$(patsubst $(obj)/%.gen.S,%,$@))
 
 # The .o files depend on the binaries directly; the .S files don't.
diff --git a/fs/buffer.c b/fs/buffer.c
index 0f51c0f7c26..d48caee12e2 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1464,7 +1464,7 @@ static void invalidate_bh_lru(void *arg)
         
 void invalidate_bh_lrus(void)
 {
-        on_each_cpu(invalidate_bh_lru, NULL, 1, 1);
+        on_each_cpu(invalidate_bh_lru, NULL, 1);
 }
 EXPORT_SYMBOL_GPL(invalidate_bh_lrus);
 
@@ -1691,11 +1691,13 @@ static int __block_write_full_page(struct inode *inode, struct page *page,
                          */
                         clear_buffer_dirty(bh);
                         set_buffer_uptodate(bh);
-                } else if (!buffer_mapped(bh) && buffer_dirty(bh)) {
+                } else if ((!buffer_mapped(bh) || buffer_delay(bh)) &&
+                           buffer_dirty(bh)) {
                         WARN_ON(bh->b_size != blocksize);
                         err = get_block(inode, block, bh, 1);
                         if (err)
                                 goto recover;
+                        clear_buffer_delay(bh);
                         if (buffer_new(bh)) {
                                 /* blockdev mappings never come here */
                                 clear_buffer_new(bh);
@@ -1774,7 +1776,8 @@ recover:
         bh = head;
         /* Recovery: lock and submit the mapped buffers */
         do {
-                if (buffer_mapped(bh) && buffer_dirty(bh)) {
+                if (buffer_mapped(bh) && buffer_dirty(bh) &&
+                    !buffer_delay(bh)) {
                         lock_buffer(bh);
                         mark_buffer_async_write(bh);
                 } else {
@@ -2061,6 +2064,7 @@ int generic_write_end(struct file *file, struct address_space *mapping,
                         struct page *page, void *fsdata)
 {
         struct inode *inode = mapping->host;
+        int i_size_changed = 0;
 
         copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
 
@@ -2073,12 +2077,21 @@ int generic_write_end(struct file *file, struct address_space *mapping,
          */
         if (pos+copied > inode->i_size) {
                 i_size_write(inode, pos+copied);
-                mark_inode_dirty(inode);
+                i_size_changed = 1;
         }
 
         unlock_page(page);
         page_cache_release(page);
 
+        /*
+         * Don't mark the inode dirty under page lock. First, it unnecessarily
+         * makes the holding time of page lock longer. Second, it forces lock
+         * ordering of page lock and transaction start for journaling
+         * filesystems.
+         */
+        if (i_size_changed)
+                mark_inode_dirty(inode);
+
         return copied;
 }
 EXPORT_SYMBOL(generic_write_end);
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 9cc80b9cc8d..495ab21b983 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -47,7 +47,7 @@ static int ext4_block_in_group(struct super_block *sb, ext4_fsblk_t block,
                         ext4_group_t block_group)
 {
         ext4_group_t actual_group;
-        ext4_get_group_no_and_offset(sb, block, &actual_group, 0);
+        ext4_get_group_no_and_offset(sb, block, &actual_group, NULL);
         if (actual_group == block_group)
                 return 1;
         return 0;
@@ -121,12 +121,7 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
                                 le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks);
                 }
         } else { /* For META_BG_BLOCK_GROUPS */
-                int group_rel = (block_group -
-                                 le32_to_cpu(sbi->s_es->s_first_meta_bg)) %
-                                EXT4_DESC_PER_BLOCK(sb);
-                if (group_rel == 0 || group_rel == 1 ||
-                    (group_rel == EXT4_DESC_PER_BLOCK(sb) - 1))
-                        bit_max += 1;
+                bit_max += ext4_bg_num_gdb(sb, block_group);
         }
 
         if (block_group == sbi->s_groups_count - 1) {
@@ -295,7 +290,7 @@ err_out:
         return 0;
 }
 /**
- * read_block_bitmap()
+ * ext4_read_block_bitmap()
  * @sb:                 super block
  * @block_group:        given block group
  *
@@ -305,7 +300,7 @@ err_out:
  * Return buffer_head on success or NULL in case of failure.
  */
 struct buffer_head *
-read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
+ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
 {
         struct ext4_group_desc * desc;
         struct buffer_head * bh = NULL;
@@ -409,8 +404,7 @@ restart:
                 prev = rsv;
         }
         printk("Window map complete.\n");
-        if (bad)
-                BUG();
+        BUG_ON(bad);
 }
 #define rsv_window_dump(root, verbose) \
         __rsv_window_dump((root), (verbose), __func__)
@@ -694,7 +688,7 @@ do_more:
                 count -= overflow;
         }
         brelse(bitmap_bh);
-        bitmap_bh = read_block_bitmap(sb, block_group);
+        bitmap_bh = ext4_read_block_bitmap(sb, block_group);
         if (!bitmap_bh)
                 goto error_return;
         desc = ext4_get_group_desc (sb, block_group, &gd_bh);
@@ -810,6 +804,13 @@ do_more:
         spin_unlock(sb_bgl_lock(sbi, block_group));
         percpu_counter_add(&sbi->s_freeblocks_counter, count);
 
+        if (sbi->s_log_groups_per_flex) {
+                ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
+                spin_lock(sb_bgl_lock(sbi, flex_group));
+                sbi->s_flex_groups[flex_group].free_blocks += count;
+                spin_unlock(sb_bgl_lock(sbi, flex_group));
+        }
+
         /* We dirtied the bitmap block */
         BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
         err = ext4_journal_dirty_metadata(handle, bitmap_bh);
@@ -1598,23 +1599,35 @@ out:
 
 /**
  * ext4_has_free_blocks()
- * @sbi:                in-core super block structure.
+ * @sbi:        in-core super block structure.
+ * @nblocks:    number of neeed blocks
  *
- * Check if filesystem has at least 1 free block available for allocation.
+ * Check if filesystem has free blocks available for allocation.
+ * Return the number of blocks avaible for allocation for this request
+ * On success, return nblocks
  */
-static int ext4_has_free_blocks(struct ext4_sb_info *sbi)
+ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi,
+                                                ext4_fsblk_t nblocks)
 {
-        ext4_fsblk_t free_blocks, root_blocks;
+        ext4_fsblk_t free_blocks;
+        ext4_fsblk_t root_blocks = 0;
 
         free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
-        root_blocks = ext4_r_blocks_count(sbi->s_es);
-        if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
+
+        if (!capable(CAP_SYS_RESOURCE) &&
                 sbi->s_resuid != current->fsuid &&
-                (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
-                return 0;
-        }
-        return 1;
-}
+                (sbi->s_resgid == 0 || !in_group_p(sbi->s_resgid)))
+                root_blocks = ext4_r_blocks_count(sbi->s_es);
+#ifdef CONFIG_SMP
+        if (free_blocks - root_blocks < FBC_BATCH)
+                free_blocks =
+                        percpu_counter_sum_and_set(&sbi->s_freeblocks_counter);
+#endif
+        if (free_blocks - root_blocks < nblocks)
+                return free_blocks - root_blocks;
+        return nblocks;
+ }
+
 
 /**
  * ext4_should_retry_alloc()
@@ -1630,7 +1643,7 @@ static int ext4_has_free_blocks(struct ext4_sb_info *sbi)
  */
 int ext4_should_retry_alloc(struct super_block *sb, int *retries)
 {
-        if (!ext4_has_free_blocks(EXT4_SB(sb)) || (*retries)++ > 3)
+        if (!ext4_has_free_blocks(EXT4_SB(sb), 1) || (*retries)++ > 3)
                 return 0;
 
         jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
@@ -1639,20 +1652,24 @@ int ext4_should_retry_alloc(struct super_block *sb, int *retries)
 }
 
 /**
- * ext4_new_blocks_old() -- core block(s) allocation function
+ * ext4_old_new_blocks() -- core block bitmap based block allocation function
+ *
  * @handle:             handle to this transaction
  * @inode:              file inode
  * @goal:               given target block(filesystem wide)
  * @count:              target number of blocks to allocate
  * @errp:               error code
  *
- * ext4_new_blocks uses a goal block to assist allocation.  It tries to
- * allocate block(s) from the block group contains the goal block first. If that
- * fails, it will try to allocate block(s) from other block groups without
- * any specific goal block.
+ * ext4_old_new_blocks uses a goal block to assist allocation and look up
+ * the block bitmap directly to do block allocation.  It tries to
+ * allocate block(s) from the block group contains the goal block first. If
+ * that fails, it will try to allocate block(s) from other block groups
+ * without any specific goal block.
+ *
+ * This function is called when -o nomballoc mount option is enabled
  *
  */
-ext4_fsblk_t ext4_new_blocks_old(handle_t *handle, struct inode *inode,
+ext4_fsblk_t ext4_old_new_blocks(handle_t *handle, struct inode *inode,
                         ext4_fsblk_t goal, unsigned long *count, int *errp)
 {
         struct buffer_head *bitmap_bh = NULL;
@@ -1676,13 +1693,26 @@ ext4_fsblk_t ext4_new_blocks_old(handle_t *handle, struct inode *inode,
         ext4_group_t ngroups;
         unsigned long num = *count;
 
-        *errp = -ENOSPC;
         sb = inode->i_sb;
         if (!sb) {
+                *errp = -ENODEV;
                 printk("ext4_new_block: nonexistent device");
                 return 0;
         }
 
+        sbi = EXT4_SB(sb);
+        if (!EXT4_I(inode)->i_delalloc_reserved_flag) {
+                /*
+                 * With delalloc we already reserved the blocks
+                 */
+                *count = ext4_has_free_blocks(sbi, *count);
+        }
+        if (*count == 0) {
+                *errp = -ENOSPC;
+                return 0;       /*return with ENOSPC error */
+        }
+        num = *count;
+
         /*
          * Check quota for allocation of this block.
          */
@@ -1706,11 +1736,6 @@ ext4_fsblk_t ext4_new_blocks_old(handle_t *handle, struct inode *inode,
         if (block_i && ((windowsz = block_i->rsv_window_node.rsv_goal_size) > 0))
                 my_rsv = &block_i->rsv_window_node;
 
-        if (!ext4_has_free_blocks(sbi)) {
-                *errp = -ENOSPC;
-                goto out;
-        }
-
         /*
          * First, test whether the goal block is free.
          */
@@ -1734,7 +1759,7 @@ retry_alloc:
                 my_rsv = NULL;
 
         if (free_blocks > 0) {
-                bitmap_bh = read_block_bitmap(sb, group_no);
+                bitmap_bh = ext4_read_block_bitmap(sb, group_no);
                 if (!bitmap_bh)
                         goto io_error;
                 grp_alloc_blk = ext4_try_to_allocate_with_rsv(sb, handle,
@@ -1770,7 +1795,7 @@ retry_alloc:
                         continue;
 
                 brelse(bitmap_bh);
-                bitmap_bh = read_block_bitmap(sb, group_no);
+                bitmap_bh = ext4_read_block_bitmap(sb, group_no);
                 if (!bitmap_bh)
                         goto io_error;
                 /*
@@ -1882,7 +1907,15 @@ allocated:
         le16_add_cpu(&gdp->bg_free_blocks_count, -num);
         gdp->bg_checksum = ext4_group_desc_csum(sbi, group_no, gdp);
         spin_unlock(sb_bgl_lock(sbi, group_no));
-        percpu_counter_sub(&sbi->s_freeblocks_counter, num);
+        if (!EXT4_I(inode)->i_delalloc_reserved_flag)
+                percpu_counter_sub(&sbi->s_freeblocks_counter, num);
+
+        if (sbi->s_log_groups_per_flex) {
+                ext4_group_t flex_group = ext4_flex_group(sbi, group_no);
+                spin_lock(sb_bgl_lock(sbi, flex_group));
+                sbi->s_flex_groups[flex_group].free_blocks -= num;
+                spin_unlock(sb_bgl_lock(sbi, flex_group));
+        }
 
         BUFFER_TRACE(gdp_bh, "journal_dirty_metadata for group descriptor");
         err = ext4_journal_dirty_metadata(handle, gdp_bh);
@@ -1915,46 +1948,104 @@ out:
         return 0;
 }
 
-ext4_fsblk_t ext4_new_block(handle_t *handle, struct inode *inode,
-                ext4_fsblk_t goal, int *errp)
+#define EXT4_META_BLOCK 0x1
+
+static ext4_fsblk_t do_blk_alloc(handle_t *handle, struct inode *inode,
+                                ext4_lblk_t iblock, ext4_fsblk_t goal,
+                                unsigned long *count, int *errp, int flags)
 {
         struct ext4_allocation_request ar;
         ext4_fsblk_t ret;
 
         if (!test_opt(inode->i_sb, MBALLOC)) {
-                unsigned long count = 1;
-                ret = ext4_new_blocks_old(handle, inode, goal, &count, errp);
-                return ret;
+                return ext4_old_new_blocks(handle, inode, goal, count, errp);
         }
 
         memset(&ar, 0, sizeof(ar));
+        /* Fill with neighbour allocated blocks */
+
         ar.inode = inode;
         ar.goal = goal;
-        ar.len = 1;
+        ar.len = *count;
+        ar.logical = iblock;
+
+        if (S_ISREG(inode->i_mode) && !(flags & EXT4_META_BLOCK))
+                /* enable in-core preallocation for data block allocation */
+                ar.flags = EXT4_MB_HINT_DATA;
+        else
+                /* disable in-core preallocation for non-regular files */
+                ar.flags = 0;
+
         ret = ext4_mb_new_blocks(handle, &ar, errp);
+        *count = ar.len;
         return ret;
 }
 
-ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode,
+/*
+ * ext4_new_meta_blocks() -- allocate block for meta data (indexing) blocks
+ *
+ * @handle:             handle to this transaction
+ * @inode:              file inode
+ * @goal:               given target block(filesystem wide)
+ * @count:              total number of blocks need
+ * @errp:               error code
+ *
+ * Return 1st allocated block numberon success, *count stores total account
+ * error stores in errp pointer
+ */
+ext4_fsblk_t ext4_new_meta_blocks(handle_t *handle, struct inode *inode,
                 ext4_fsblk_t goal, unsigned long *count, int *errp)
 {
-        struct ext4_allocation_request ar;
         ext4_fsblk_t ret;
-
-        if (!test_opt(inode->i_sb, MBALLOC)) {
-                ret = ext4_new_blocks_old(handle, inode, goal, count, errp);
-                return ret;
+        ret = do_blk_alloc(handle, inode, 0, goal,
+                                count, errp, EXT4_META_BLOCK);
+        /*
+         * Account for the allocated meta blocks
+         */
+        if (!(*errp)) {
+                spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
+                EXT4_I(inode)->i_allocated_meta_blocks += *count;
+                spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
         }
-
-        memset(&ar, 0, sizeof(ar));
-        ar.inode = inode;
-        ar.goal = goal;
-        ar.len = *count;
-        ret = ext4_mb_new_blocks(handle, &ar, errp);
-        *count = ar.len;
         return ret;
 }
 
+/*
+ * ext4_new_meta_block() -- allocate block for meta data (indexing) blocks
+ *
+ * @handle:             handle to this transaction
+ * @inode:              file inode
+ * @goal:               given target block(filesystem wide)
+ * @errp:               error code
+ *
+ * Return allocated block number on success
+ */
+ext4_fsblk_t ext4_new_meta_block(handle_t *handle, struct inode *inode,
+                ext4_fsblk_t goal, int *errp)
+{
+        unsigned long count = 1;
+        return ext4_new_meta_blocks(handle, inode, goal, &count, errp);
+}
+
+/*
+ * ext4_new_blocks() -- allocate data blocks
+ *
+ * @handle:             handle to this transaction
+ * @inode:              file inode
+ * @goal:               given target block(filesystem wide)
+ * @count:              total number of blocks need
+ * @errp:               error code
+ *
+ * Return 1st allocated block numberon success, *count stores total account
+ * error stores in errp pointer
+ */
+
+ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode,
+                                ext4_lblk_t iblock, ext4_fsblk_t goal,
+                                unsigned long *count, int *errp)
+{
+        return do_blk_alloc(handle, inode, iblock, goal, count, errp, 0);
+}
 
 /**
  * ext4_count_free_blocks() -- count filesystem free blocks
@@ -1986,7 +2077,7 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
                         continue;
                 desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
                 brelse(bitmap_bh);
-                bitmap_bh = read_block_bitmap(sb, i);
+                bitmap_bh = ext4_read_block_bitmap(sb, i);
                 if (bitmap_bh == NULL)
                         continue;
 
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 2bf0331ea19..d3d23d73c08 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -129,7 +129,8 @@ static int ext4_readdir(struct file * filp,
                 struct buffer_head *bh = NULL;
 
                 map_bh.b_state = 0;
-                err = ext4_get_blocks_wrap(NULL, inode, blk, 1, &map_bh, 0, 0);
+                err = ext4_get_blocks_wrap(NULL, inode, blk, 1, &map_bh,
+                                                0, 0, 0);
                 if (err > 0) {
                         pgoff_t index = map_bh.b_blocknr >>
                                         (PAGE_CACHE_SHIFT - inode->i_blkbits);
@@ -272,7 +273,7 @@ static void free_rb_tree_fname(struct rb_root *root)
 
         while (n) {
                 /* Do the node's children first */
-                if ((n)->rb_left) {
+                if (n->rb_left) {
                         n = n->rb_left;
                         continue;
                 }
@@ -301,24 +302,18 @@ static void free_rb_tree_fname(struct rb_root *root)
                         parent->rb_right = NULL;
                 n = parent;
         }
-        root->rb_node = NULL;
 }
 
 
-static struct dir_private_info *create_dir_info(loff_t pos)
+static struct dir_private_info *ext4_htree_create_dir_info(loff_t pos)
 {
         struct dir_private_info *p;
 
-        p = kmalloc(sizeof(struct dir_private_info), GFP_KERNEL);
+        p = kzalloc(sizeof(struct dir_private_info), GFP_KERNEL);
         if (!p)
                 return NULL;
-        p->root.rb_node = NULL;
-        p->curr_node = NULL;
-        p->extra_fname = NULL;
-        p->last_pos = 0;
         p->curr_hash = pos2maj_hash(pos);
         p->curr_minor_hash = pos2min_hash(pos);
-        p->next_hash = 0;
         return p;
 }
 
@@ -433,7 +428,7 @@ static int ext4_dx_readdir(struct file * filp,
         int     ret;
 
         if (!info) {
-                info = create_dir_info(filp->f_pos);
+                info = ext4_htree_create_dir_info(filp->f_pos);
                 if (!info)
                         return -ENOMEM;
                 filp->private_data = info;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 8158083f7ac..303e41cf7b1 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -22,7 +22,7 @@
 #include "ext4_i.h"
 
 /*
- * The second extended filesystem constants/structures
+ * The fourth extended filesystem constants/structures
  */
 
 /*
@@ -45,7 +45,7 @@
 #define ext4_debug(f, a...)                                             \
         do {                                                            \
                 printk (KERN_DEBUG "EXT4-fs DEBUG (%s, %d): %s:",       \
-                        __FILE__, __LINE__, __FUNCTION__);              \
+                        __FILE__, __LINE__, __func__);                  \
                 printk (KERN_DEBUG f, ## a);                            \
         } while (0)
 #else
@@ -74,6 +74,9 @@
 #define EXT4_MB_HINT_GOAL_ONLY          256
 /* goal is meaningful */
 #define EXT4_MB_HINT_TRY_GOAL           512
+/* blocks already pre-reserved by delayed allocation */
+#define EXT4_MB_DELALLOC_RESERVED      1024
+
 
 struct ext4_allocation_request {
         /* target inode for block we're allocating */
@@ -170,6 +173,15 @@ struct ext4_group_desc
         __u32   bg_reserved2[3];
 };
 
+/*
+ * Structure of a flex block group info
+ */
+
+struct flex_groups {
+        __u32 free_inodes;
+        __u32 free_blocks;
+};
+
 #define EXT4_BG_INODE_UNINIT    0x0001 /* Inode table/bitmap not in use */
 #define EXT4_BG_BLOCK_UNINIT    0x0002 /* Block bitmap not in use */
 #define EXT4_BG_INODE_ZEROED    0x0004 /* On-disk itable initialized to zero */
@@ -527,6 +539,7 @@ do {									       \
 #define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */
 #define EXT4_MOUNT_I_VERSION            0x2000000 /* i_version support */
 #define EXT4_MOUNT_MBALLOC              0x4000000 /* Buddy allocation support */
+#define EXT4_MOUNT_DELALLOC             0x8000000 /* Delalloc support */
 /* Compatibility, for having both ext2_fs.h and ext4_fs.h included at once */
 #ifndef _LINUX_EXT2_FS_H
 #define clear_opt(o, opt)               o &= ~EXT4_MOUNT_##opt
@@ -647,7 +660,10 @@ struct ext4_super_block {
         __le16  s_mmp_interval;         /* # seconds to wait in MMP checking */
         __le64  s_mmp_block;            /* Block for multi-mount protection */
         __le32  s_raid_stripe_width;    /* blocks on all data disks (N*stride)*/
-        __u32   s_reserved[163];        /* Padding to the end of the block */
+        __u8    s_log_groups_per_flex;  /* FLEX_BG group size */
+        __u8    s_reserved_char_pad2;
+        __le16  s_reserved_pad;
+        __u32   s_reserved[162];        /* Padding to the end of the block */
 };
 
 #ifdef __KERNEL__
@@ -958,12 +974,17 @@ extern ext4_grpblk_t ext4_block_group_offset(struct super_block *sb,
 extern int ext4_bg_has_super(struct super_block *sb, ext4_group_t group);
 extern unsigned long ext4_bg_num_gdb(struct super_block *sb,
                         ext4_group_t group);
-extern ext4_fsblk_t ext4_new_block (handle_t *handle, struct inode *inode,
+extern ext4_fsblk_t ext4_new_meta_block(handle_t *handle, struct inode *inode,
                         ext4_fsblk_t goal, int *errp);
-extern ext4_fsblk_t ext4_new_blocks (handle_t *handle, struct inode *inode,
+extern ext4_fsblk_t ext4_new_meta_blocks(handle_t *handle, struct inode *inode,
                         ext4_fsblk_t goal, unsigned long *count, int *errp);
-extern ext4_fsblk_t ext4_new_blocks_old(handle_t *handle, struct inode *inode,
+extern ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode,
+                                        ext4_lblk_t iblock, ext4_fsblk_t goal,
+                                        unsigned long *count, int *errp);
+extern ext4_fsblk_t ext4_old_new_blocks(handle_t *handle, struct inode *inode,
                         ext4_fsblk_t goal, unsigned long *count, int *errp);
+extern ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi,
+                                                ext4_fsblk_t nblocks);
 extern void ext4_free_blocks (handle_t *handle, struct inode *inode,
                         ext4_fsblk_t block, unsigned long count, int metadata);
 extern void ext4_free_blocks_sb (handle_t *handle, struct super_block *sb,
@@ -1016,9 +1037,14 @@ extern int __init init_ext4_mballoc(void);
 extern void exit_ext4_mballoc(void);
 extern void ext4_mb_free_blocks(handle_t *, struct inode *,
                 unsigned long, unsigned long, int, unsigned long *);
+extern int ext4_mb_add_more_groupinfo(struct super_block *sb,
+                ext4_group_t i, struct ext4_group_desc *desc);
+extern void ext4_mb_update_group_info(struct ext4_group_info *grp,
+                ext4_grpblk_t add);
 
 
 /* inode.c */
+void ext4_da_release_space(struct inode *inode, int used, int to_free);
 int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
                 struct buffer_head *bh, ext4_fsblk_t blocknr);
 struct buffer_head *ext4_getblk(handle_t *, struct inode *,
@@ -1033,19 +1059,23 @@ int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
 extern struct inode *ext4_iget(struct super_block *, unsigned long);
 extern int  ext4_write_inode (struct inode *, int);
 extern int  ext4_setattr (struct dentry *, struct iattr *);
+extern int  ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
+                                struct kstat *stat);
 extern void ext4_delete_inode (struct inode *);
 extern int  ext4_sync_inode (handle_t *, struct inode *);
 extern void ext4_discard_reservation (struct inode *);
 extern void ext4_dirty_inode(struct inode *);
 extern int ext4_change_inode_journal_flag(struct inode *, int);
 extern int ext4_get_inode_loc(struct inode *, struct ext4_iloc *);
+extern int ext4_can_truncate(struct inode *inode);
 extern void ext4_truncate (struct inode *);
 extern void ext4_set_inode_flags(struct inode *);
 extern void ext4_get_inode_flags(struct ext4_inode_info *);
 extern void ext4_set_aops(struct inode *inode);
 extern int ext4_writepage_trans_blocks(struct inode *);
-extern int ext4_block_truncate_page(handle_t *handle, struct page *page,
+extern int ext4_block_truncate_page(handle_t *handle,
                 struct address_space *mapping, loff_t from);
+extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct page *page);
 
 /* ioctl.c */
 extern long ext4_ioctl(struct file *, unsigned int, unsigned long);
@@ -1159,10 +1189,21 @@ struct ext4_group_info *ext4_get_group_info(struct super_block *sb,
 }
 
 
+static inline ext4_group_t ext4_flex_group(struct ext4_sb_info *sbi,
+                                             ext4_group_t block_group)
+{
+        return block_group >> sbi->s_log_groups_per_flex;
+}
+
+static inline unsigned int ext4_flex_bg_size(struct ext4_sb_info *sbi)
+{
+        return 1 << sbi->s_log_groups_per_flex;
+}
+
 #define ext4_std_error(sb, errno)                               \
 do {                                                            \
         if ((errno))                                            \
-                __ext4_std_error((sb), __FUNCTION__, (errno));  \
+                __ext4_std_error((sb), __func__, (errno));      \
 } while (0)
 
 /*
@@ -1191,7 +1232,7 @@ extern int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
                         ext4_lblk_t iblock,
                         unsigned long max_blocks, struct buffer_head *bh_result,
                         int create, int extend_disksize);
-extern void ext4_ext_truncate(struct inode *, struct page *);
+extern void ext4_ext_truncate(struct inode *);
 extern void ext4_ext_init(struct super_block *);
 extern void ext4_ext_release(struct super_block *);
 extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset,
@@ -1199,7 +1240,7 @@ extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset,
 extern int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode,
                         sector_t block, unsigned long max_blocks,
                         struct buffer_head *bh, int create,
-                        int extend_disksize);
+                        int extend_disksize, int flag);
 #endif  /* __KERNEL__ */
 
 #endif  /* _EXT4_H */
diff --git a/fs/ext4/ext4_extents.h b/fs/ext4/ext4_extents.h
index 75333b595fa..6c166c0a54b 100644
--- a/fs/ext4/ext4_extents.h
+++ b/fs/ext4/ext4_extents.h
@@ -212,6 +212,7 @@ static inline int ext4_ext_get_actual_len(struct ext4_extent *ext)
                 (le16_to_cpu(ext->ee_len) - EXT_INIT_MAX_LEN));
 }
 
+extern int ext4_ext_calc_metadata_amount(struct inode *inode, int blocks);
 extern ext4_fsblk_t idx_pblock(struct ext4_extent_idx *);
 extern void ext4_ext_store_pblock(struct ext4_extent *, ext4_fsblk_t);
 extern int ext4_extent_tree_init(handle_t *, struct inode *);
diff --git a/fs/ext4/ext4_i.h b/fs/ext4/ext4_i.h
index 26a4ae255d7..ef7409f0e7e 100644
--- a/fs/ext4/ext4_i.h
+++ b/fs/ext4/ext4_i.h
@@ -79,7 +79,7 @@ struct ext4_ext_cache {
 };
 
 /*
- * third extended file system inode data in memory
+ * fourth extended file system inode data in memory
  */
 struct ext4_inode_info {
         __le32  i_data[15];     /* unconverted */
@@ -150,6 +150,7 @@ struct ext4_inode_info {
          */
         struct rw_semaphore i_data_sem;
         struct inode vfs_inode;
+        struct jbd2_inode jinode;
 
         unsigned long i_ext_generation;
         struct ext4_ext_cache i_cached_extent;
@@ -162,6 +163,13 @@ struct ext4_inode_info {
         /* mballoc */
         struct list_head i_prealloc_list;
         spinlock_t i_prealloc_lock;
+
+        /* allocation reservation info for delalloc */
+        unsigned long i_reserved_data_blocks;
+        unsigned long i_reserved_meta_blocks;
+        unsigned long i_allocated_meta_blocks;
+        unsigned short i_delalloc_reserved_flag;
+        spinlock_t i_block_reservation_lock;
 };
 
 #endif  /* _EXT4_I */
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index 9255a7d28b2..eb8bc3afe6e 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -142,19 +142,17 @@ int __ext4_journal_dirty_metadata(const char *where,
                                 handle_t *handle, struct buffer_head *bh);
 
 #define ext4_journal_get_undo_access(handle, bh) \
-        __ext4_journal_get_undo_access(__FUNCTION__, (handle), (bh))
+        __ext4_journal_get_undo_access(__func__, (handle), (bh))
 #define ext4_journal_get_write_access(handle, bh) \
-        __ext4_journal_get_write_access(__FUNCTION__, (handle), (bh))
+        __ext4_journal_get_write_access(__func__, (handle), (bh))
 #define ext4_journal_revoke(handle, blocknr, bh) \
-        __ext4_journal_revoke(__FUNCTION__, (handle), (blocknr), (bh))
+        __ext4_journal_revoke(__func__, (handle), (blocknr), (bh))
 #define ext4_journal_get_create_access(handle, bh) \
-        __ext4_journal_get_create_access(__FUNCTION__, (handle), (bh))
+        __ext4_journal_get_create_access(__func__, (handle), (bh))
 #define ext4_journal_dirty_metadata(handle, bh) \
-        __ext4_journal_dirty_metadata(__FUNCTION__, (handle), (bh))
+        __ext4_journal_dirty_metadata(__func__, (handle), (bh))
 #define ext4_journal_forget(handle, bh) \
-        __ext4_journal_forget(__FUNCTION__, (handle), (bh))
-
-int ext4_journal_dirty_data(handle_t *handle, struct buffer_head *bh);
+        __ext4_journal_forget(__func__, (handle), (bh))
 
 handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks);
 int __ext4_journal_stop(const char *where, handle_t *handle);
@@ -165,7 +163,7 @@ static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks)
 }
 
 #define ext4_journal_stop(handle) \
-        __ext4_journal_stop(__FUNCTION__, (handle))
+        __ext4_journal_stop(__func__, (handle))
 
 static inline handle_t *ext4_journal_current_handle(void)
 {
@@ -192,6 +190,11 @@ static inline int ext4_journal_force_commit(journal_t *journal)
         return jbd2_journal_force_commit(journal);
 }
 
+static inline int ext4_jbd2_file_inode(handle_t *handle, struct inode *inode)
+{
+        return jbd2_journal_file_inode(handle, &EXT4_I(inode)->jinode);
+}
+
 /* super.c */
 int ext4_force_commit(struct super_block *sb);
 
diff --git a/fs/ext4/ext4_sb.h b/fs/ext4/ext4_sb.h
index 5802e69f219..6300226d553 100644
--- a/fs/ext4/ext4_sb.h
+++ b/fs/ext4/ext4_sb.h
@@ -25,7 +25,7 @@
 #include <linux/rbtree.h>
 
 /*
- * third extended-fs super-block data in memory
+ * fourth extended-fs super-block data in memory
  */
 struct ext4_sb_info {
         unsigned long s_desc_size;      /* Size of a group descriptor in bytes */
@@ -143,6 +143,9 @@ struct ext4_sb_info {
 
         /* locality groups */
         struct ext4_locality_group *s_locality_groups;
+
+        unsigned int s_log_groups_per_flex;
+        struct flex_groups *s_flex_groups;
 };
 
 #endif  /* _EXT4_SB */
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 47929c4e3da..42c4c0c892e 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -92,17 +92,16 @@ static void ext4_idx_store_pblock(struct ext4_extent_idx *ix, ext4_fsblk_t pb)
         ix->ei_leaf_hi = cpu_to_le16((unsigned long) ((pb >> 31) >> 1) & 0xffff);
 }
 
-static handle_t *ext4_ext_journal_restart(handle_t *handle, int needed)
+static int ext4_ext_journal_restart(handle_t *handle, int needed)
 {
         int err;
 
         if (handle->h_buffer_credits > needed)
-                return handle;
-        if (!ext4_journal_extend(handle, needed))
-                return handle;
-        err = ext4_journal_restart(handle, needed);
-
-        return handle;
+                return 0;
+        err = ext4_journal_extend(handle, needed);
+        if (err)
+                return err;
+        return ext4_journal_restart(handle, needed);
 }
 
 /*
@@ -180,15 +179,18 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
         return bg_start + colour + block;
 }
 
+/*
+ * Allocation for a meta data block
+ */
 static ext4_fsblk_t
-ext4_ext_new_block(handle_t *handle, struct inode *inode,
+ext4_ext_new_meta_block(handle_t *handle, struct inode *inode,
                         struct ext4_ext_path *path,
                         struct ext4_extent *ex, int *err)
 {
         ext4_fsblk_t goal, newblock;
 
         goal = ext4_ext_find_goal(inode, path, le32_to_cpu(ex->ee_block));
-        newblock = ext4_new_block(handle, inode, goal, err);
+        newblock = ext4_new_meta_block(handle, inode, goal, err);
         return newblock;
 }
 
@@ -246,6 +248,36 @@ static int ext4_ext_space_root_idx(struct inode *inode)
         return size;
 }
 
+/*
+ * Calculate the number of metadata blocks needed
+ * to allocate @blocks
+ * Worse case is one block per extent
+ */
+int ext4_ext_calc_metadata_amount(struct inode *inode, int blocks)
+{
+        int lcap, icap, rcap, leafs, idxs, num;
+        int newextents = blocks;
+
+        rcap = ext4_ext_space_root_idx(inode);
+        lcap = ext4_ext_space_block(inode);
+        icap = ext4_ext_space_block_idx(inode);
+
+        /* number of new leaf blocks needed */
+        num = leafs = (newextents + lcap - 1) / lcap;
+
+        /*
+         * Worse case, we need separate index block(s)
+         * to link all new leaf blocks
+         */
+        idxs = (leafs + icap - 1) / icap;
+        do {
+                num += idxs;
+                idxs = (idxs + icap - 1) / icap;
+        } while (idxs > rcap);
+
+        return num;
+}
+
 static int
 ext4_ext_max_entries(struct inode *inode, int depth)
 {
@@ -524,6 +556,7 @@ ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block,
                 alloc = 1;
         }
         path[0].p_hdr = eh;
+        path[0].p_bh = NULL;
 
         i = depth;
         /* walk through the tree */
@@ -552,12 +585,14 @@ ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block,
         }
 
         path[ppos].p_depth = i;
-        path[ppos].p_hdr = eh;
         path[ppos].p_ext = NULL;
         path[ppos].p_idx = NULL;
 
         /* find extent */
         ext4_ext_binsearch(inode, path + ppos, block);
+        /* if not an empty leaf */
+        if (path[ppos].p_ext)
+                path[ppos].p_block = ext_pblock(path[ppos].p_ext);
 
         ext4_ext_show_path(inode, path);
 
@@ -688,7 +723,8 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
         /* allocate all needed blocks */
         ext_debug("allocate %d blocks for indexes/leaf\n", depth - at);
         for (a = 0; a < depth - at; a++) {
-                newblock = ext4_ext_new_block(handle, inode, path, newext, &err);
+                newblock = ext4_ext_new_meta_block(handle, inode, path,
+                                                   newext, &err);
                 if (newblock == 0)
                         goto cleanup;
                 ablocks[a] = newblock;
@@ -884,7 +920,7 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
         ext4_fsblk_t newblock;
         int err = 0;
 
-        newblock = ext4_ext_new_block(handle, inode, path, newext, &err);
+        newblock = ext4_ext_new_meta_block(handle, inode, path, newext, &err);
         if (newblock == 0)
                 return err;
 
@@ -981,6 +1017,8 @@ repeat:
                 /* if we found index with free entry, then use that
                  * entry: create all needed subtree and add new leaf */
                 err = ext4_ext_split(handle, inode, path, newext, i);
+                if (err)
+                        goto out;
 
                 /* refill path */
                 ext4_ext_drop_refs(path);
@@ -1883,11 +1921,9 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
                 credits += 2 * EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
 #endif
 
-                handle = ext4_ext_journal_restart(handle, credits);
-                if (IS_ERR(handle)) {
-                        err = PTR_ERR(handle);
+                err = ext4_ext_journal_restart(handle, credits);
+                if (err)
                         goto out;
-                }
 
                 err = ext4_ext_get_access(handle, inode, path + depth);
                 if (err)
@@ -2529,6 +2565,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
         int err = 0, depth, ret;
         unsigned long allocated = 0;
         struct ext4_allocation_request ar;
+        loff_t disksize;
 
         __clear_bit(BH_New, &bh_result->b_state);
         ext_debug("blocks %u/%lu requested for inode %u\n",
@@ -2616,8 +2653,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
                                  */
                                 if (allocated > max_blocks)
                                         allocated = max_blocks;
-                                /* mark the buffer unwritten */
-                                __set_bit(BH_Unwritten, &bh_result->b_state);
+                                set_buffer_unwritten(bh_result);
                                 goto out2;
                         }
 
@@ -2716,14 +2752,19 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
                 goto out2;
         }
 
-        if (extend_disksize && inode->i_size > EXT4_I(inode)->i_disksize)
-                EXT4_I(inode)->i_disksize = inode->i_size;
-
         /* previous routine could use block we allocated */
         newblock = ext_pblock(&newex);
         allocated = ext4_ext_get_actual_len(&newex);
 outnew:
-        __set_bit(BH_New, &bh_result->b_state);
+        if (extend_disksize) {
+                disksize = ((loff_t) iblock + ar.len) << inode->i_blkbits;
+                if (disksize > i_size_read(inode))
+                        disksize = i_size_read(inode);
+                if (disksize > EXT4_I(inode)->i_disksize)
+                        EXT4_I(inode)->i_disksize = disksize;
+        }
+
+        set_buffer_new(bh_result);
 
         /* Cache only when it is _not_ an uninitialized extent */
         if (create != EXT4_CREATE_UNINITIALIZED_EXT)
@@ -2733,7 +2774,7 @@ out:
         if (allocated > max_blocks)
                 allocated = max_blocks;
         ext4_ext_show_leaf(inode, path);
-        __set_bit(BH_Mapped, &bh_result->b_state);
+        set_buffer_mapped(bh_result);
         bh_result->b_bdev = inode->i_sb->s_bdev;
         bh_result->b_blocknr = newblock;
 out2:
@@ -2744,7 +2785,7 @@ out2:
         return err ? err : allocated;
 }
 
-void ext4_ext_truncate(struct inode * inode, struct page *page)
+void ext4_ext_truncate(struct inode *inode)
 {
         struct address_space *mapping = inode->i_mapping;
         struct super_block *sb = inode->i_sb;
@@ -2757,18 +2798,14 @@ void ext4_ext_truncate(struct inode * inode, struct page *page)
          */
         err = ext4_writepage_trans_blocks(inode) + 3;
         handle = ext4_journal_start(inode, err);
-        if (IS_ERR(handle)) {
-                if (page) {
-                        clear_highpage(page);
-                        flush_dcache_page(page);
-                        unlock_page(page);
-                        page_cache_release(page);
-                }
+        if (IS_ERR(handle))
                 return;
-        }
 
-        if (page)
-                ext4_block_truncate_page(handle, page, mapping, inode->i_size);
+        if (inode->i_size & (sb->s_blocksize - 1))
+                ext4_block_truncate_page(handle, mapping, inode->i_size);
+
+        if (ext4_orphan_add(handle, inode))
+                goto out_stop;
 
         down_write(&EXT4_I(inode)->i_data_sem);
         ext4_ext_invalidate_cache(inode);
@@ -2780,8 +2817,6 @@ void ext4_ext_truncate(struct inode * inode, struct page *page)
          * Probably we need not scan at all,
          * because page truncation is enough.
          */
-        if (ext4_orphan_add(handle, inode))
-                goto out_stop;
 
         /* we have to know where to truncate from in crash case */
         EXT4_I(inode)->i_disksize = inode->i_size;
@@ -2798,6 +2833,7 @@ void ext4_ext_truncate(struct inode * inode, struct page *page)
                 handle->h_sync = 1;
 
 out_stop:
+        up_write(&EXT4_I(inode)->i_data_sem);
         /*
          * If this was a simple ftruncate() and the file will remain alive,
          * then we need to clear up the orphan record which we created above.
@@ -2808,7 +2844,6 @@ out_stop:
         if (inode->i_nlink)
                 ext4_orphan_del(handle, inode);
 
-        up_write(&EXT4_I(inode)->i_data_sem);
         inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
         ext4_mark_inode_dirty(handle, inode);
         ext4_journal_stop(handle);
@@ -2911,7 +2946,7 @@ retry:
                 }
                 ret = ext4_get_blocks_wrap(handle, inode, block,
                                           max_blocks, &map_bh,
-                                          EXT4_CREATE_UNINITIALIZED_EXT, 0);
+                                          EXT4_CREATE_UNINITIALIZED_EXT, 0, 0);
                 if (ret <= 0) {
 #ifdef EXT4FS_DEBUG
                         WARN_ON(ret <= 0);
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 4159be6366a..430eb7978db 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -123,6 +123,23 @@ force_commit:
         return ret;
 }
 
+static struct vm_operations_struct ext4_file_vm_ops = {
+        .fault          = filemap_fault,
+        .page_mkwrite   = ext4_page_mkwrite,
+};
+
+static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma)
+{
+        struct address_space *mapping = file->f_mapping;
+
+        if (!mapping->a_ops->readpage)
+                return -ENOEXEC;
+        file_accessed(file);
+        vma->vm_ops = &ext4_file_vm_ops;
+        vma->vm_flags |= VM_CAN_NONLINEAR;
+        return 0;
+}
+
 const struct file_operations ext4_file_operations = {
         .llseek         = generic_file_llseek,
         .read           = do_sync_read,
@@ -133,7 +150,7 @@ const struct file_operations ext4_file_operations = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = ext4_compat_ioctl,
 #endif
-        .mmap           = generic_file_mmap,
+        .mmap           = ext4_file_mmap,
         .open           = generic_file_open,
         .release        = ext4_release_file,
         .fsync          = ext4_sync_file,
@@ -144,6 +161,7 @@ const struct file_operations ext4_file_operations = {
 const struct inode_operations ext4_file_inode_operations = {
         .truncate       = ext4_truncate,
         .setattr        = ext4_setattr,
+        .getattr        = ext4_getattr,
 #ifdef CONFIG_EXT4DEV_FS_XATTR
         .setxattr       = generic_setxattr,
         .getxattr       = generic_getxattr,
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index 1c8ba48d4f8..a45c3737ad3 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -27,6 +27,7 @@
 #include <linux/sched.h>
 #include <linux/writeback.h>
 #include <linux/jbd2.h>
+#include <linux/blkdev.h>
 #include "ext4.h"
 #include "ext4_jbd2.h"
 
@@ -45,6 +46,7 @@
 int ext4_sync_file(struct file * file, struct dentry *dentry, int datasync)
 {
         struct inode *inode = dentry->d_inode;
+        journal_t *journal = EXT4_SB(inode->i_sb)->s_journal;
         int ret = 0;
 
         J_ASSERT(ext4_journal_current_handle() == NULL);
@@ -85,6 +87,8 @@ int ext4_sync_file(struct file * file, struct dentry *dentry, int datasync)
                         .nr_to_write = 0, /* sys_fsync did this */
                 };
                 ret = sync_inode(inode, &wbc);
+                if (journal && (journal->j_flags & JBD2_BARRIER))
+                        blkdev_issue_flush(inode->i_sb->s_bdev, NULL);
         }
 out:
         return ret;
diff --git a/fs/ext4/group.h b/fs/ext4/group.h
index 7eb0604e7ee..c2c0a8d06d0 100644
--- a/fs/ext4/group.h
+++ b/fs/ext4/group.h
@@ -13,7 +13,7 @@ extern __le16 ext4_group_desc_csum(struct ext4_sb_info *sbi, __u32 group,
                                    struct ext4_group_desc *gdp);
 extern int ext4_group_desc_csum_verify(struct ext4_sb_info *sbi, __u32 group,
                                        struct ext4_group_desc *gdp);
-struct buffer_head *read_block_bitmap(struct super_block *sb,
+struct buffer_head *ext4_read_block_bitmap(struct super_block *sb,
                                       ext4_group_t block_group);
 extern unsigned ext4_init_block_bitmap(struct super_block *sb,
                                        struct buffer_head *bh,
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index c6efbab0c80..a92eb305344 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -157,6 +157,7 @@ void ext4_free_inode (handle_t *handle, struct inode * inode)
         struct ext4_super_block * es;
         struct ext4_sb_info *sbi;
         int fatal = 0, err;
+        ext4_group_t flex_group;
 
         if (atomic_read(&inode->i_count) > 1) {
                 printk ("ext4_free_inode: inode has count=%d\n",
@@ -232,6 +233,12 @@ void ext4_free_inode (handle_t *handle, struct inode * inode)
                         if (is_directory)
                                 percpu_counter_dec(&sbi->s_dirs_counter);
 
+                        if (sbi->s_log_groups_per_flex) {
+                                flex_group = ext4_flex_group(sbi, block_group);
+                                spin_lock(sb_bgl_lock(sbi, flex_group));
+                                sbi->s_flex_groups[flex_group].free_inodes++;
+                                spin_unlock(sb_bgl_lock(sbi, flex_group));
+                        }
                 }
                 BUFFER_TRACE(bh2, "call ext4_journal_dirty_metadata");
                 err = ext4_journal_dirty_metadata(handle, bh2);
@@ -286,6 +293,80 @@ static int find_group_dir(struct super_block *sb, struct inode *parent,
         return ret;
 }
 
+#define free_block_ratio 10
+
+static int find_group_flex(struct super_block *sb, struct inode *parent,
+                           ext4_group_t *best_group)
+{
+        struct ext4_sb_info *sbi = EXT4_SB(sb);
+        struct ext4_group_desc *desc;
+        struct buffer_head *bh;
+        struct flex_groups *flex_group = sbi->s_flex_groups;
+        ext4_group_t parent_group = EXT4_I(parent)->i_block_group;
+        ext4_group_t parent_fbg_group = ext4_flex_group(sbi, parent_group);
+        ext4_group_t ngroups = sbi->s_groups_count;
+        int flex_size = ext4_flex_bg_size(sbi);
+        ext4_group_t best_flex = parent_fbg_group;
+        int blocks_per_flex = sbi->s_blocks_per_group * flex_size;
+        int flexbg_free_blocks;
+        int flex_freeb_ratio;
+        ext4_group_t n_fbg_groups;
+        ext4_group_t i;
+
+        n_fbg_groups = (sbi->s_groups_count + flex_size - 1) >>
+                sbi->s_log_groups_per_flex;
+
+find_close_to_parent:
+        flexbg_free_blocks = flex_group[best_flex].free_blocks;
+        flex_freeb_ratio = flexbg_free_blocks * 100 / blocks_per_flex;
+        if (flex_group[best_flex].free_inodes &&
+            flex_freeb_ratio > free_block_ratio)
+                goto found_flexbg;
+
+        if (best_flex && best_flex == parent_fbg_group) {
+                best_flex--;
+                goto find_close_to_parent;
+        }
+
+        for (i = 0; i < n_fbg_groups; i++) {
+                if (i == parent_fbg_group || i == parent_fbg_group - 1)
+                        continue;
+
+                flexbg_free_blocks = flex_group[i].free_blocks;
+                flex_freeb_ratio = flexbg_free_blocks * 100 / blocks_per_flex;
+
+                if (flex_freeb_ratio > free_block_ratio &&
+                    flex_group[i].free_inodes) {
+                        best_flex = i;
+                        goto found_flexbg;
+                }
+
+                if (best_flex < 0 ||
+                    (flex_group[i].free_blocks >
+                     flex_group[best_flex].free_blocks &&
+                     flex_group[i].free_inodes))
+                        best_flex = i;
+        }
+
+        if (!flex_group[best_flex].free_inodes ||
+            !flex_group[best_flex].free_blocks)
+                return -1;
+
+found_flexbg:
+        for (i = best_flex * flex_size; i < ngroups &&
+                     i < (best_flex + 1) * flex_size; i++) {
+                desc = ext4_get_group_desc(sb, i, &bh);
+                if (le16_to_cpu(desc->bg_free_inodes_count)) {
+                        *best_group = i;
+                        goto out;
+                }
+        }
+
+        return -1;
+out:
+        return 0;
+}
+
 /*
  * Orlov's allocator for directories.
  *
@@ -501,6 +582,7 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode * dir, int mode)
         struct inode *ret;
         ext4_group_t i;
         int free = 0;
+        ext4_group_t flex_group;
 
         /* Cannot create files in a deleted directory */
         if (!dir || !dir->i_nlink)
@@ -514,6 +596,12 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode * dir, int mode)
 
         sbi = EXT4_SB(sb);
         es = sbi->s_es;
+
+        if (sbi->s_log_groups_per_flex) {
+                ret2 = find_group_flex(sb, dir, &group);
+                goto got_group;
+        }
+
         if (S_ISDIR(mode)) {
                 if (test_opt (sb, OLDALLOC))
                         ret2 = find_group_dir(sb, dir, &group);
@@ -522,6 +610,7 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode * dir, int mode)
         } else
                 ret2 = find_group_other(sb, dir, &group);
 
+got_group:
         err = -ENOSPC;
         if (ret2 == -1)
                 goto out;
@@ -600,7 +689,7 @@ got:
         /* We may have to initialize the block bitmap if it isn't already */
         if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM) &&
             gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
-                struct buffer_head *block_bh = read_block_bitmap(sb, group);
+                struct buffer_head *block_bh = ext4_read_block_bitmap(sb, group);
 
                 BUFFER_TRACE(block_bh, "get block bitmap access");
                 err = ext4_journal_get_write_access(handle, block_bh);
@@ -676,6 +765,13 @@ got:
                 percpu_counter_inc(&sbi->s_dirs_counter);
         sb->s_dirt = 1;
 
+        if (sbi->s_log_groups_per_flex) {
+                flex_group = ext4_flex_group(sbi, group);
+                spin_lock(sb_bgl_lock(sbi, flex_group));
+                sbi->s_flex_groups[flex_group].free_inodes--;
+                spin_unlock(sb_bgl_lock(sbi, flex_group));
+        }
+
         inode->i_uid = current->fsuid;
         if (test_opt (sb, GRPID))
                 inode->i_gid = dir->i_gid;
@@ -740,14 +836,10 @@ got:
                 goto fail_free_drop;
 
         if (test_opt(sb, EXTENTS)) {
-                /* set extent flag only for diretory, file and normal symlink*/
+                /* set extent flag only for directory, file and normal symlink*/
                 if (S_ISDIR(mode) || S_ISREG(mode) || S_ISLNK(mode)) {
                         EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL;
                         ext4_ext_tree_init(handle, inode);
-                        err = ext4_update_incompat_feature(handle, sb,
-                                        EXT4_FEATURE_INCOMPAT_EXTENTS);
-                        if (err)
-                                goto fail_free_drop;
                 }
         }
 
@@ -817,6 +909,14 @@ struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
         if (IS_ERR(inode))
                 goto iget_failed;
 
+        /*
+         * If the orphans has i_nlinks > 0 then it should be able to be
+         * truncated, otherwise it won't be removed from the orphan list
+         * during processing and an infinite loop will result.
+         */
+        if (inode->i_nlink && !ext4_can_truncate(inode))
+                goto bad_orphan;
+
         if (NEXT_ORPHAN(inode) > max_ino)
                 goto bad_orphan;
         brelse(bitmap_bh);
@@ -838,6 +938,7 @@ bad_orphan:
                 printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
                        NEXT_ORPHAN(inode));
                 printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
+                printk(KERN_NOTICE "i_nlink=%u\n", inode->i_nlink);
                 /* Avoid freeing blocks if we got a bad deleted inode */
                 if (inode->i_nlink == 0)
                         inode->i_blocks = 0;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 8d970774641..8ca2763df09 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -32,12 +32,23 @@
 #include <linux/string.h>
 #include <linux/buffer_head.h>
 #include <linux/writeback.h>
+#include <linux/pagevec.h>
 #include <linux/mpage.h>
 #include <linux/uio.h>
 #include <linux/bio.h>
 #include "ext4_jbd2.h"
 #include "xattr.h"
 #include "acl.h"
+#include "ext4_extents.h"
+
+static inline int ext4_begin_ordered_truncate(struct inode *inode,
+                                              loff_t new_size)
+{
+        return jbd2_journal_begin_ordered_truncate(&EXT4_I(inode)->jinode,
+                                                   new_size);
+}
+
+static void ext4_invalidatepage(struct page *page, unsigned long offset);
 
 /*
  * Test whether an inode is a fast symlink.
@@ -181,6 +192,8 @@ void ext4_delete_inode (struct inode * inode)
 {
         handle_t *handle;
 
+        if (ext4_should_order_data(inode))
+                ext4_begin_ordered_truncate(inode, 0);
         truncate_inode_pages(&inode->i_data, 0);
 
         if (is_bad_inode(inode))
@@ -508,11 +521,12 @@ static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
  *              direct blocks
  */
 static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
-                        ext4_fsblk_t goal, int indirect_blks, int blks,
-                        ext4_fsblk_t new_blocks[4], int *err)
+                                ext4_lblk_t iblock, ext4_fsblk_t goal,
+                                int indirect_blks, int blks,
+                                ext4_fsblk_t new_blocks[4], int *err)
 {
         int target, i;
-        unsigned long count = 0;
+        unsigned long count = 0, blk_allocated = 0;
         int index = 0;
         ext4_fsblk_t current_block = 0;
         int ret = 0;
@@ -525,12 +539,13 @@ static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
          * the first direct block of this branch.  That's the
          * minimum number of blocks need to allocate(required)
          */
-        target = blks + indirect_blks;
-
-        while (1) {
+        /* first we try to allocate the indirect blocks */
+        target = indirect_blks;
+        while (target > 0) {
                 count = target;
                 /* allocating blocks for indirect blocks and direct blocks */
-                current_block = ext4_new_blocks(handle,inode,goal,&count,err);
+                current_block = ext4_new_meta_blocks(handle, inode,
+                                                        goal, &count, err);
                 if (*err)
                         goto failed_out;
 
@@ -540,16 +555,48 @@ static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
                         new_blocks[index++] = current_block++;
                         count--;
                 }
-
-                if (count > 0)
+                if (count > 0) {
+                        /*
+                         * save the new block number
+                         * for the first direct block
+                         */
+                        new_blocks[index] = current_block;
+                        printk(KERN_INFO "%s returned more blocks than "
+                                                "requested\n", __func__);
+                        WARN_ON(1);
                         break;
+                }
         }
 
-        /* save the new block number for the first direct block */
-        new_blocks[index] = current_block;
-
+        target = blks - count ;
+        blk_allocated = count;
+        if (!target)
+                goto allocated;
+        /* Now allocate data blocks */
+        count = target;
+        /* allocating blocks for data blocks */
+        current_block = ext4_new_blocks(handle, inode, iblock,
+                                                goal, &count, err);
+        if (*err && (target == blks)) {
+                /*
+                 * if the allocation failed and we didn't allocate
+                 * any blocks before
+                 */
+                goto failed_out;
+        }
+        if (!*err) {
+                if (target == blks) {
+                /*
+                 * save the new block number
+                 * for the first direct block
+                 */
+                        new_blocks[index] = current_block;
+                }
+                blk_allocated += count;
+        }
+allocated:
         /* total number of blocks allocated for direct blocks */
-        ret = count;
+        ret = blk_allocated;
         *err = 0;
         return ret;
 failed_out:
@@ -584,8 +631,9 @@ failed_out:
  *      as described above and return 0.
  */
 static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
-                        int indirect_blks, int *blks, ext4_fsblk_t goal,
-                        ext4_lblk_t *offsets, Indirect *branch)
+                                ext4_lblk_t iblock, int indirect_blks,
+                                int *blks, ext4_fsblk_t goal,
+                                ext4_lblk_t *offsets, Indirect *branch)
 {
         int blocksize = inode->i_sb->s_blocksize;
         int i, n = 0;
@@ -595,7 +643,7 @@ static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
         ext4_fsblk_t new_blocks[4];
         ext4_fsblk_t current_block;
 
-        num = ext4_alloc_blocks(handle, inode, goal, indirect_blks,
+        num = ext4_alloc_blocks(handle, inode, iblock, goal, indirect_blks,
                                 *blks, new_blocks, &err);
         if (err)
                 return err;
@@ -799,6 +847,7 @@ int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
         struct ext4_inode_info *ei = EXT4_I(inode);
         int count = 0;
         ext4_fsblk_t first_block = 0;
+        loff_t disksize;
 
 
         J_ASSERT(!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL));
@@ -855,8 +904,9 @@ int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
         /*
          * Block out ext4_truncate while we alter the tree
          */
-        err = ext4_alloc_branch(handle, inode, indirect_blks, &count, goal,
-                                offsets + (partial - chain), partial);
+        err = ext4_alloc_branch(handle, inode, iblock, indirect_blks,
+                                        &count, goal,
+                                        offsets + (partial - chain), partial);
 
         /*
          * The ext4_splice_branch call will free and forget any buffers
@@ -873,8 +923,13 @@ int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
          * protect it if you're about to implement concurrent
          * ext4_get_block() -bzzz
         */
-        if (!err && extend_disksize && inode->i_size > ei->i_disksize)
-                ei->i_disksize = inode->i_size;
+        if (!err && extend_disksize) {
+                disksize = ((loff_t) iblock + count) << inode->i_blkbits;
+                if (disksize > i_size_read(inode))
+                        disksize = i_size_read(inode);
+                if (disksize > ei->i_disksize)
+                        ei->i_disksize = disksize;
+        }
         if (err)
                 goto cleanup;
 
@@ -934,7 +989,7 @@ out:
  */
 int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
                         unsigned long max_blocks, struct buffer_head *bh,
-                        int create, int extend_disksize)
+                        int create, int extend_disksize, int flag)
 {
         int retval;
 
@@ -975,6 +1030,15 @@ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
          * with create == 1 flag.
          */
         down_write((&EXT4_I(inode)->i_data_sem));
+
+        /*
+         * if the caller is from delayed allocation writeout path
+         * we have already reserved fs blocks for allocation
+         * let the underlying get_block() function know to
+         * avoid double accounting
+         */
+        if (flag)
+                EXT4_I(inode)->i_delalloc_reserved_flag = 1;
         /*
          * We need to check for EXT4 here because migrate
          * could have changed the inode type in between
@@ -996,6 +1060,18 @@ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
                                                         ~EXT4_EXT_MIGRATE;
                 }
         }
+
+        if (flag) {
+                EXT4_I(inode)->i_delalloc_reserved_flag = 0;
+                /*
+                 * Update reserved blocks/metadata blocks
+                 * after successful block allocation
+                 * which were deferred till now
+                 */
+                if ((retval > 0) && buffer_delay(bh))
+                        ext4_da_release_space(inode, retval, 0);
+        }
+
         up_write((&EXT4_I(inode)->i_data_sem));
         return retval;
 }
@@ -1021,7 +1097,7 @@ static int ext4_get_block(struct inode *inode, sector_t iblock,
         }
 
         ret = ext4_get_blocks_wrap(handle, inode, iblock,
-                                        max_blocks, bh_result, create, 0);
+                                        max_blocks, bh_result, create, 0, 0);
         if (ret > 0) {
                 bh_result->b_size = (ret << inode->i_blkbits);
                 ret = 0;
@@ -1047,7 +1123,7 @@ struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,
         dummy.b_blocknr = -1000;
         buffer_trace_init(&dummy.b_history);
         err = ext4_get_blocks_wrap(handle, inode, block, 1,
-                                        &dummy, create, 1);
+                                        &dummy, create, 1, 0);
         /*
          * ext4_get_blocks_handle() returns number of blocks
          * mapped. 0 in case of a HOLE.
@@ -1203,19 +1279,20 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
         to = from + len;
 
 retry:
-        page = __grab_cache_page(mapping, index);
-        if (!page)
-                return -ENOMEM;
-        *pagep = page;
-
         handle = ext4_journal_start(inode, needed_blocks);
         if (IS_ERR(handle)) {
-                unlock_page(page);
-                page_cache_release(page);
                 ret = PTR_ERR(handle);
                 goto out;
         }
 
+        page = __grab_cache_page(mapping, index);
+        if (!page) {
+                ext4_journal_stop(handle);
+                ret = -ENOMEM;
+                goto out;
+        }
+        *pagep = page;
+
         ret = block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
                                                         ext4_get_block);
 
@@ -1225,8 +1302,8 @@ retry:
         }
 
         if (ret) {
-                ext4_journal_stop(handle);
                 unlock_page(page);
+                ext4_journal_stop(handle);
                 page_cache_release(page);
         }
 
@@ -1236,15 +1313,6 @@ out:
         return ret;
 }
 
-int ext4_journal_dirty_data(handle_t *handle, struct buffer_head *bh)
-{
-        int err = jbd2_journal_dirty_data(handle, bh);
-        if (err)
-                ext4_journal_abort_handle(__func__, __func__,
-                                                bh, handle, err);
-        return err;
-}
-
 /* For write_end() in data=journal mode */
 static int write_end_fn(handle_t *handle, struct buffer_head *bh)
 {
@@ -1255,29 +1323,6 @@ static int write_end_fn(handle_t *handle, struct buffer_head *bh)
 }
 
 /*
- * Generic write_end handler for ordered and writeback ext4 journal modes.
- * We can't use generic_write_end, because that unlocks the page and we need to
- * unlock the page after ext4_journal_stop, but ext4_journal_stop must run
- * after block_write_end.
- */
-static int ext4_generic_write_end(struct file *file,
-                                struct address_space *mapping,
-                                loff_t pos, unsigned len, unsigned copied,
-                                struct page *page, void *fsdata)
-{
-        struct inode *inode = file->f_mapping->host;
-
-        copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
-
-        if (pos+copied > inode->i_size) {
-                i_size_write(inode, pos+copied);
-                mark_inode_dirty(inode);
-        }
-
-        return copied;
-}
-
-/*
  * We need to pick up the new inode size which generic_commit_write gave us
  * `file' can be NULL - eg, when called from page_symlink().
  *
@@ -1290,15 +1335,14 @@ static int ext4_ordered_write_end(struct file *file,
                                 struct page *page, void *fsdata)
 {
         handle_t *handle = ext4_journal_current_handle();
-        struct inode *inode = file->f_mapping->host;
+        struct inode *inode = mapping->host;
         unsigned from, to;
         int ret = 0, ret2;
 
         from = pos & (PAGE_CACHE_SIZE - 1);
         to = from + len;
 
-        ret = walk_page_buffers(handle, page_buffers(page),
-                from, to, NULL, ext4_journal_dirty_data);
+        ret = ext4_jbd2_file_inode(handle, inode);
 
         if (ret == 0) {
                 /*
@@ -1311,7 +1355,7 @@ static int ext4_ordered_write_end(struct file *file,
                 new_i_size = pos + copied;
                 if (new_i_size > EXT4_I(inode)->i_disksize)
                         EXT4_I(inode)->i_disksize = new_i_size;
-                ret2 = ext4_generic_write_end(file, mapping, pos, len, copied,
+                ret2 = generic_write_end(file, mapping, pos, len, copied,
                                                         page, fsdata);
                 copied = ret2;
                 if (ret2 < 0)
@@ -1320,8 +1364,6 @@ static int ext4_ordered_write_end(struct file *file,
         ret2 = ext4_journal_stop(handle);
         if (!ret)
                 ret = ret2;
-        unlock_page(page);
-        page_cache_release(page);
 
         return ret ? ret : copied;
 }
@@ -1332,7 +1374,7 @@ static int ext4_writeback_write_end(struct file *file,
                                 struct page *page, void *fsdata)
 {
         handle_t *handle = ext4_journal_current_handle();
-        struct inode *inode = file->f_mapping->host;
+        struct inode *inode = mapping->host;
         int ret = 0, ret2;
         loff_t new_i_size;
 
@@ -1340,7 +1382,7 @@ static int ext4_writeback_write_end(struct file *file,
         if (new_i_size > EXT4_I(inode)->i_disksize)
                 EXT4_I(inode)->i_disksize = new_i_size;
 
-        ret2 = ext4_generic_write_end(file, mapping, pos, len, copied,
+        ret2 = generic_write_end(file, mapping, pos, len, copied,
                                                         page, fsdata);
         copied = ret2;
         if (ret2 < 0)
@@ -1349,8 +1391,6 @@ static int ext4_writeback_write_end(struct file *file,
         ret2 = ext4_journal_stop(handle);
         if (!ret)
                 ret = ret2;
-        unlock_page(page);
-        page_cache_release(page);
 
         return ret ? ret : copied;
 }
@@ -1389,14 +1429,965 @@ static int ext4_journalled_write_end(struct file *file,
                         ret = ret2;
         }
 
+        unlock_page(page);
         ret2 = ext4_journal_stop(handle);
         if (!ret)
                 ret = ret2;
-        unlock_page(page);
         page_cache_release(page);
 
         return ret ? ret : copied;
 }
+/*
+ * Calculate the number of metadata blocks need to reserve
+ * to allocate @blocks for non extent file based file
+ */
+static int ext4_indirect_calc_metadata_amount(struct inode *inode, int blocks)
+{
+        int icap = EXT4_ADDR_PER_BLOCK(inode->i_sb);
+        int ind_blks, dind_blks, tind_blks;
+
+        /* number of new indirect blocks needed */
+        ind_blks = (blocks + icap - 1) / icap;
+
+        dind_blks = (ind_blks + icap - 1) / icap;
+
+        tind_blks = 1;
+
+        return ind_blks + dind_blks + tind_blks;
+}
+
+/*
+ * Calculate the number of metadata blocks need to reserve
+ * to allocate given number of blocks
+ */
+static int ext4_calc_metadata_amount(struct inode *inode, int blocks)
+{
+        if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)
+                return ext4_ext_calc_metadata_amount(inode, blocks);
+
+        return ext4_indirect_calc_metadata_amount(inode, blocks);
+}
+
+static int ext4_da_reserve_space(struct inode *inode, int nrblocks)
+{
+       struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+       unsigned long md_needed, mdblocks, total = 0;
+
+        /*
+         * recalculate the amount of metadata blocks to reserve
+         * in order to allocate nrblocks
+         * worse case is one extent per block
+         */
+        spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
+        total = EXT4_I(inode)->i_reserved_data_blocks + nrblocks;
+        mdblocks = ext4_calc_metadata_amount(inode, total);
+        BUG_ON(mdblocks < EXT4_I(inode)->i_reserved_meta_blocks);
+
+        md_needed = mdblocks - EXT4_I(inode)->i_reserved_meta_blocks;
+        total = md_needed + nrblocks;
+
+        if (ext4_has_free_blocks(sbi, total) < total) {
+                spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+                return -ENOSPC;
+        }
+
+        /* reduce fs free blocks counter */
+        percpu_counter_sub(&sbi->s_freeblocks_counter, total);
+
+        EXT4_I(inode)->i_reserved_data_blocks += nrblocks;
+        EXT4_I(inode)->i_reserved_meta_blocks = mdblocks;
+
+        spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+        return 0;       /* success */
+}
+
+void ext4_da_release_space(struct inode *inode, int used, int to_free)
+{
+        struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+        int total, mdb, mdb_free, release;
+
+        spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
+        /* recalculate the number of metablocks still need to be reserved */
+        total = EXT4_I(inode)->i_reserved_data_blocks - used - to_free;
+        mdb = ext4_calc_metadata_amount(inode, total);
+
+        /* figure out how many metablocks to release */
+        BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks);
+        mdb_free = EXT4_I(inode)->i_reserved_meta_blocks - mdb;
+
+        /* Account for allocated meta_blocks */
+        mdb_free -= EXT4_I(inode)->i_allocated_meta_blocks;
+
+        release = to_free + mdb_free;
+
+        /* update fs free blocks counter for truncate case */
+        percpu_counter_add(&sbi->s_freeblocks_counter, release);
+
+        /* update per-inode reservations */
+        BUG_ON(used + to_free > EXT4_I(inode)->i_reserved_data_blocks);
+        EXT4_I(inode)->i_reserved_data_blocks -= (used + to_free);
+
+        BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks);
+        EXT4_I(inode)->i_reserved_meta_blocks = mdb;
+        EXT4_I(inode)->i_allocated_meta_blocks = 0;
+        spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+}
+
+static void ext4_da_page_release_reservation(struct page *page,
+                                                unsigned long offset)
+{
+        int to_release = 0;
+        struct buffer_head *head, *bh;
+        unsigned int curr_off = 0;
+
+        head = page_buffers(page);
+        bh = head;
+        do {
+                unsigned int next_off = curr_off + bh->b_size;
+
+                if ((offset <= curr_off) && (buffer_delay(bh))) {
+                        to_release++;
+                        clear_buffer_delay(bh);
+                }
+                curr_off = next_off;
+        } while ((bh = bh->b_this_page) != head);
+        ext4_da_release_space(page->mapping->host, 0, to_release);
+}
+
+/*
+ * Delayed allocation stuff
+ */
+
+struct mpage_da_data {
+        struct inode *inode;
+        struct buffer_head lbh;                 /* extent of blocks */
+        unsigned long first_page, next_page;    /* extent of pages */
+        get_block_t *get_block;
+        struct writeback_control *wbc;
+};
+
+/*
+ * mpage_da_submit_io - walks through extent of pages and try to write
+ * them with __mpage_writepage()
+ *
+ * @mpd->inode: inode
+ * @mpd->first_page: first page of the extent
+ * @mpd->next_page: page after the last page of the extent
+ * @mpd->get_block: the filesystem's block mapper function
+ *
+ * By the time mpage_da_submit_io() is called we expect all blocks
+ * to be allocated. this may be wrong if allocation failed.
+ *
+ * As pages are already locked by write_cache_pages(), we can't use it
+ */
+static int mpage_da_submit_io(struct mpage_da_data *mpd)
+{
+        struct address_space *mapping = mpd->inode->i_mapping;
+        struct mpage_data mpd_pp = {
+                .bio = NULL,
+                .last_block_in_bio = 0,
+                .get_block = mpd->get_block,
+                .use_writepage = 1,
+        };
+        int ret = 0, err, nr_pages, i;
+        unsigned long index, end;
+        struct pagevec pvec;
+
+        BUG_ON(mpd->next_page <= mpd->first_page);
+
+        pagevec_init(&pvec, 0);
+        index = mpd->first_page;
+        end = mpd->next_page - 1;
+
+        while (index <= end) {
+                /* XXX: optimize tail */
+                nr_pages = pagevec_lookup(&pvec, mapping, index, PAGEVEC_SIZE);
+                if (nr_pages == 0)
+                        break;
+                for (i = 0; i < nr_pages; i++) {
+                        struct page *page = pvec.pages[i];
+
+                        index = page->index;
+                        if (index > end)
+                                break;
+                        index++;
+
+                        err = __mpage_writepage(page, mpd->wbc, &mpd_pp);
+
+                        /*
+                         * In error case, we have to continue because
+                         * remaining pages are still locked
+                         * XXX: unlock and re-dirty them?
+                         */
+                        if (ret == 0)
+                                ret = err;
+                }
+                pagevec_release(&pvec);
+        }
+        if (mpd_pp.bio)
+                mpage_bio_submit(WRITE, mpd_pp.bio);
+
+        return ret;
+}
+
+/*
+ * mpage_put_bnr_to_bhs - walk blocks and assign them actual numbers
+ *
+ * @mpd->inode - inode to walk through
+ * @exbh->b_blocknr - first block on a disk
+ * @exbh->b_size - amount of space in bytes
+ * @logical - first logical block to start assignment with
+ *
+ * the function goes through all passed space and put actual disk
+ * block numbers into buffer heads, dropping BH_Delay
+ */
+static void mpage_put_bnr_to_bhs(struct mpage_da_data *mpd, sector_t logical,
+                                 struct buffer_head *exbh)
+{
+        struct inode *inode = mpd->inode;
+        struct address_space *mapping = inode->i_mapping;
+        int blocks = exbh->b_size >> inode->i_blkbits;
+        sector_t pblock = exbh->b_blocknr, cur_logical;
+        struct buffer_head *head, *bh;
+        unsigned long index, end;
+        struct pagevec pvec;
+        int nr_pages, i;
+
+        index = logical >> (PAGE_CACHE_SHIFT - inode->i_blkbits);
+        end = (logical + blocks - 1) >> (PAGE_CACHE_SHIFT - inode->i_blkbits);
+        cur_logical = index << (PAGE_CACHE_SHIFT - inode->i_blkbits);
+
+        pagevec_init(&pvec, 0);
+
+        while (index <= end) {
+                /* XXX: optimize tail */
+                nr_pages = pagevec_lookup(&pvec, mapping, index, PAGEVEC_SIZE);
+                if (nr_pages == 0)
+                        break;
+                for (i = 0; i < nr_pages; i++) {
+                        struct page *page = pvec.pages[i];
+
+                        index = page->index;
+                        if (index > end)
+                                break;
+                        index++;
+
+                        BUG_ON(!PageLocked(page));
+                        BUG_ON(PageWriteback(page));
+                        BUG_ON(!page_has_buffers(page));
+
+                        bh = page_buffers(page);
+                        head = bh;
+
+                        /* skip blocks out of the range */
+                        do {
+                                if (cur_logical >= logical)
+                                        break;
+                                cur_logical++;
+                        } while ((bh = bh->b_this_page) != head);
+
+                        do {
+                                if (cur_logical >= logical + blocks)
+                                        break;
+                                if (buffer_delay(bh)) {
+                                        bh->b_blocknr = pblock;
+                                        clear_buffer_delay(bh);
+                                } else if (buffer_mapped(bh))
+                                        BUG_ON(bh->b_blocknr != pblock);
+
+                                cur_logical++;
+                                pblock++;
+                        } while ((bh = bh->b_this_page) != head);
+                }
+                pagevec_release(&pvec);
+        }
+}
+
+
+/*
+ * __unmap_underlying_blocks - just a helper function to unmap
+ * set of blocks described by @bh
+ */
+static inline void __unmap_underlying_blocks(struct inode *inode,
+                                             struct buffer_head *bh)
+{
+        struct block_device *bdev = inode->i_sb->s_bdev;
+        int blocks, i;
+
+        blocks = bh->b_size >> inode->i_blkbits;
+        for (i = 0; i < blocks; i++)
+                unmap_underlying_metadata(bdev, bh->b_blocknr + i);
+}
+
+/*
+ * mpage_da_map_blocks - go through given space
+ *
+ * @mpd->lbh - bh describing space
+ * @mpd->get_block - the filesystem's block mapper function
+ *
+ * The function skips space we know is already mapped to disk blocks.
+ *
+ * The function ignores errors ->get_block() returns, thus real
+ * error handling is postponed to __mpage_writepage()
+ */
+static void mpage_da_map_blocks(struct mpage_da_data *mpd)
+{
+        struct buffer_head *lbh = &mpd->lbh;
+        int err = 0, remain = lbh->b_size;
+        sector_t next = lbh->b_blocknr;
+        struct buffer_head new;
+
+        /*
+         * We consider only non-mapped and non-allocated blocks
+         */
+        if (buffer_mapped(lbh) && !buffer_delay(lbh))
+                return;
+
+        while (remain) {
+                new.b_state = lbh->b_state;
+                new.b_blocknr = 0;
+                new.b_size = remain;
+                err = mpd->get_block(mpd->inode, next, &new, 1);
+                if (err) {
+                        /*
+                         * Rather than implement own error handling
+                         * here, we just leave remaining blocks
+                         * unallocated and try again with ->writepage()
+                         */
+                        break;
+                }
+                BUG_ON(new.b_size == 0);
+
+                if (buffer_new(&new))
+                        __unmap_underlying_blocks(mpd->inode, &new);
+
+                /*
+                 * If blocks are delayed marked, we need to
+                 * put actual blocknr and drop delayed bit
+                 */
+                if (buffer_delay(lbh))
+                        mpage_put_bnr_to_bhs(mpd, next, &new);
+
+                /* go for the remaining blocks */
+                next += new.b_size >> mpd->inode->i_blkbits;
+                remain -= new.b_size;
+        }
+}
+
+#define BH_FLAGS ((1 << BH_Uptodate) | (1 << BH_Mapped) | (1 << BH_Delay))
+
+/*
+ * mpage_add_bh_to_extent - try to add one more block to extent of blocks
+ *
+ * @mpd->lbh - extent of blocks
+ * @logical - logical number of the block in the file
+ * @bh - bh of the block (used to access block's state)
+ *
+ * the function is used to collect contig. blocks in same state
+ */
+static void mpage_add_bh_to_extent(struct mpage_da_data *mpd,
+                                   sector_t logical, struct buffer_head *bh)
+{
+        struct buffer_head *lbh = &mpd->lbh;
+        sector_t next;
+
+        next = lbh->b_blocknr + (lbh->b_size >> mpd->inode->i_blkbits);
+
+        /*
+         * First block in the extent
+         */
+        if (lbh->b_size == 0) {
+                lbh->b_blocknr = logical;
+                lbh->b_size = bh->b_size;
+                lbh->b_state = bh->b_state & BH_FLAGS;
+                return;
+        }
+
+        /*
+         * Can we merge the block to our big extent?
+         */
+        if (logical == next && (bh->b_state & BH_FLAGS) == lbh->b_state) {
+                lbh->b_size += bh->b_size;
+                return;
+        }
+
+        /*
+         * We couldn't merge the block to our extent, so we
+         * need to flush current  extent and start new one
+         */
+        mpage_da_map_blocks(mpd);
+
+        /*
+         * Now start a new extent
+         */
+        lbh->b_size = bh->b_size;
+        lbh->b_state = bh->b_state & BH_FLAGS;
+        lbh->b_blocknr = logical;
+}
+
+/*
+ * __mpage_da_writepage - finds extent of pages and blocks
+ *
+ * @page: page to consider
+ * @wbc: not used, we just follow rules
+ * @data: context
+ *
+ * The function finds extents of pages and scan them for all blocks.
+ */
+static int __mpage_da_writepage(struct page *page,
+                                struct writeback_control *wbc, void *data)
+{
+        struct mpage_da_data *mpd = data;
+        struct inode *inode = mpd->inode;
+        struct buffer_head *bh, *head, fake;
+        sector_t logical;
+
+        /*
+         * Can we merge this page to current extent?
+         */
+        if (mpd->next_page != page->index) {
+                /*
+                 * Nope, we can't. So, we map non-allocated blocks
+                 * and start IO on them using __mpage_writepage()
+                 */
+                if (mpd->next_page != mpd->first_page) {
+                        mpage_da_map_blocks(mpd);
+                        mpage_da_submit_io(mpd);
+                }
+
+                /*
+                 * Start next extent of pages ...
+                 */
+                mpd->first_page = page->index;
+
+                /*
+                 * ... and blocks
+                 */
+                mpd->lbh.b_size = 0;
+                mpd->lbh.b_state = 0;
+                mpd->lbh.b_blocknr = 0;
+        }
+
+        mpd->next_page = page->index + 1;
+        logical = (sector_t) page->index <<
+                  (PAGE_CACHE_SHIFT - inode->i_blkbits);
+
+        if (!page_has_buffers(page)) {
+                /*
+                 * There is no attached buffer heads yet (mmap?)
+                 * we treat the page asfull of dirty blocks
+                 */
+                bh = &fake;
+                bh->b_size = PAGE_CACHE_SIZE;
+                bh->b_state = 0;
+                set_buffer_dirty(bh);
+                set_buffer_uptodate(bh);
+                mpage_add_bh_to_extent(mpd, logical, bh);
+        } else {
+                /*
+                 * Page with regular buffer heads, just add all dirty ones
+                 */
+                head = page_buffers(page);
+                bh = head;
+                do {
+                        BUG_ON(buffer_locked(bh));
+                        if (buffer_dirty(bh))
+                                mpage_add_bh_to_extent(mpd, logical, bh);
+                        logical++;
+                } while ((bh = bh->b_this_page) != head);
+        }
+
+        return 0;
+}
+
+/*
+ * mpage_da_writepages - walk the list of dirty pages of the given
+ * address space, allocates non-allocated blocks, maps newly-allocated
+ * blocks to existing bhs and issue IO them
+ *
+ * @mapping: address space structure to write
+ * @wbc: subtract the number of written pages from *@wbc->nr_to_write
+ * @get_block: the filesystem's block mapper function.
+ *
+ * This is a library function, which implements the writepages()
+ * address_space_operation.
+ *
+ * In order to avoid duplication of logic that deals with partial pages,
+ * multiple bio per page, etc, we find non-allocated blocks, allocate
+ * them with minimal calls to ->get_block() and re-use __mpage_writepage()
+ *
+ * It's important that we call __mpage_writepage() only once for each
+ * involved page, otherwise we'd have to implement more complicated logic
+ * to deal with pages w/o PG_lock or w/ PG_writeback and so on.
+ *
+ * See comments to mpage_writepages()
+ */
+static int mpage_da_writepages(struct address_space *mapping,
+                               struct writeback_control *wbc,
+                               get_block_t get_block)
+{
+        struct mpage_da_data mpd;
+        int ret;
+
+        if (!get_block)
+                return generic_writepages(mapping, wbc);
+
+        mpd.wbc = wbc;
+        mpd.inode = mapping->host;
+        mpd.lbh.b_size = 0;
+        mpd.lbh.b_state = 0;
+        mpd.lbh.b_blocknr = 0;
+        mpd.first_page = 0;
+        mpd.next_page = 0;
+        mpd.get_block = get_block;
+
+        ret = write_cache_pages(mapping, wbc, __mpage_da_writepage, &mpd);
+
+        /*
+         * Handle last extent of pages
+         */
+        if (mpd.next_page != mpd.first_page) {
+                mpage_da_map_blocks(&mpd);
+                mpage_da_submit_io(&mpd);
+        }
+
+        return ret;
+}
+
+/*
+ * this is a special callback for ->write_begin() only
+ * it's intention is to return mapped block or reserve space
+ */
+static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
+                                  struct buffer_head *bh_result, int create)
+{
+        int ret = 0;
+
+        BUG_ON(create == 0);
+        BUG_ON(bh_result->b_size != inode->i_sb->s_blocksize);
+
+        /*
+         * first, we need to know whether the block is allocated already
+         * preallocated blocks are unmapped but should treated
+         * the same as allocated blocks.
+         */
+        ret = ext4_get_blocks_wrap(NULL, inode, iblock, 1,  bh_result, 0, 0, 0);
+        if ((ret == 0) && !buffer_delay(bh_result)) {
+                /* the block isn't (pre)allocated yet, let's reserve space */
+                /*
+                 * XXX: __block_prepare_write() unmaps passed block,
+                 * is it OK?
+                 */
+                ret = ext4_da_reserve_space(inode, 1);
+                if (ret)
+                        /* not enough space to reserve */
+                        return ret;
+
+                map_bh(bh_result, inode->i_sb, 0);
+                set_buffer_new(bh_result);
+                set_buffer_delay(bh_result);
+        } else if (ret > 0) {
+                bh_result->b_size = (ret << inode->i_blkbits);
+                ret = 0;
+        }
+
+        return ret;
+}
+#define         EXT4_DELALLOC_RSVED     1
+static int ext4_da_get_block_write(struct inode *inode, sector_t iblock,
+                                   struct buffer_head *bh_result, int create)
+{
+        int ret;
+        unsigned max_blocks = bh_result->b_size >> inode->i_blkbits;
+        loff_t disksize = EXT4_I(inode)->i_disksize;
+        handle_t *handle = NULL;
+
+        handle = ext4_journal_current_handle();
+        if (!handle) {
+                ret = ext4_get_blocks_wrap(handle, inode, iblock, max_blocks,
+                                   bh_result, 0, 0, 0);
+                BUG_ON(!ret);
+        } else {
+                ret = ext4_get_blocks_wrap(handle, inode, iblock, max_blocks,
+                                   bh_result, create, 0, EXT4_DELALLOC_RSVED);
+        }
+
+        if (ret > 0) {
+                bh_result->b_size = (ret << inode->i_blkbits);
+
+                /*
+                 * Update on-disk size along with block allocation
+                 * we don't use 'extend_disksize' as size may change
+                 * within already allocated block -bzzz
+                 */
+                disksize = ((loff_t) iblock + ret) << inode->i_blkbits;
+                if (disksize > i_size_read(inode))
+                        disksize = i_size_read(inode);
+                if (disksize > EXT4_I(inode)->i_disksize) {
+                        /*
+                         * XXX: replace with spinlock if seen contended -bzzz
+                         */
+                        down_write(&EXT4_I(inode)->i_data_sem);
+                        if (disksize > EXT4_I(inode)->i_disksize)
+                                EXT4_I(inode)->i_disksize = disksize;
+                        up_write(&EXT4_I(inode)->i_data_sem);
+
+                        if (EXT4_I(inode)->i_disksize == disksize) {
+                                ret = ext4_mark_inode_dirty(handle, inode);
+                                return ret;
+                        }
+                }
+                ret = 0;
+        }
+        return ret;
+}
+
+static int ext4_bh_unmapped_or_delay(handle_t *handle, struct buffer_head *bh)
+{
+        /*
+         * unmapped buffer is possible for holes.
+         * delay buffer is possible with delayed allocation
+         */
+        return ((!buffer_mapped(bh) || buffer_delay(bh)) && buffer_dirty(bh));
+}
+
+static int ext4_normal_get_block_write(struct inode *inode, sector_t iblock,
+                                   struct buffer_head *bh_result, int create)
+{
+        int ret = 0;
+        unsigned max_blocks = bh_result->b_size >> inode->i_blkbits;
+
+        /*
+         * we don't want to do block allocation in writepage
+         * so call get_block_wrap with create = 0
+         */
+        ret = ext4_get_blocks_wrap(NULL, inode, iblock, max_blocks,
+                                   bh_result, 0, 0, 0);
+        if (ret > 0) {
+                bh_result->b_size = (ret << inode->i_blkbits);
+                ret = 0;
+        }
+        return ret;
+}
+
+/*
+ * get called vi ext4_da_writepages after taking page lock (have journal handle)
+ * get called via journal_submit_inode_data_buffers (no journal handle)
+ * get called via shrink_page_list via pdflush (no journal handle)
+ * or grab_page_cache when doing write_begin (have journal handle)
+ */
+static int ext4_da_writepage(struct page *page,
+                                struct writeback_control *wbc)
+{
+        int ret = 0;
+        loff_t size;
+        unsigned long len;
+        struct buffer_head *page_bufs;
+        struct inode *inode = page->mapping->host;
+
+        size = i_size_read(inode);
+        if (page->index == size >> PAGE_CACHE_SHIFT)
+                len = size & ~PAGE_CACHE_MASK;
+        else
+                len = PAGE_CACHE_SIZE;
+
+        if (page_has_buffers(page)) {
+                page_bufs = page_buffers(page);
+                if (walk_page_buffers(NULL, page_bufs, 0, len, NULL,
+                                        ext4_bh_unmapped_or_delay)) {
+                        /*
+                         * We don't want to do  block allocation
+                         * So redirty the page and return
+                         * We may reach here when we do a journal commit
+                         * via journal_submit_inode_data_buffers.
+                         * If we don't have mapping block we just ignore
+                         * them. We can also reach here via shrink_page_list
+                         */
+                        redirty_page_for_writepage(wbc, page);
+                        unlock_page(page);
+                        return 0;
+                }
+        } else {
+                /*
+                 * The test for page_has_buffers() is subtle:
+                 * We know the page is dirty but it lost buffers. That means
+                 * that at some moment in time after write_begin()/write_end()
+                 * has been called all buffers have been clean and thus they
+                 * must have been written at least once. So they are all
+                 * mapped and we can happily proceed with mapping them
+                 * and writing the page.
+                 *
+                 * Try to initialize the buffer_heads and check whether
+                 * all are mapped and non delay. We don't want to
+                 * do block allocation here.
+                 */
+                ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE,
+                                                ext4_normal_get_block_write);
+                if (!ret) {
+                        page_bufs = page_buffers(page);
+                        /* check whether all are mapped and non delay */
+                        if (walk_page_buffers(NULL, page_bufs, 0, len, NULL,
+                                                ext4_bh_unmapped_or_delay)) {
+                                redirty_page_for_writepage(wbc, page);
+                                unlock_page(page);
+                                return 0;
+                        }
+                } else {
+                        /*
+                         * We can't do block allocation here
+                         * so just redity the page and unlock
+                         * and return
+                         */
+                        redirty_page_for_writepage(wbc, page);
+                        unlock_page(page);
+                        return 0;
+                }
+        }
+
+        if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
+                ret = nobh_writepage(page, ext4_normal_get_block_write, wbc);
+        else
+                ret = block_write_full_page(page,
+                                                ext4_normal_get_block_write,
+                                                wbc);
+
+        return ret;
+}
+
+/*
+ * For now just follow the DIO way to estimate the max credits
+ * needed to write out EXT4_MAX_WRITEBACK_PAGES.
+ * todo: need to calculate the max credits need for
+ * extent based files, currently the DIO credits is based on
+ * indirect-blocks mapping way.
+ *
+ * Probably should have a generic way to calculate credits
+ * for DIO, writepages, and truncate
+ */
+#define EXT4_MAX_WRITEBACK_PAGES      DIO_MAX_BLOCKS
+#define EXT4_MAX_WRITEBACK_CREDITS    DIO_CREDITS
+
+static int ext4_da_writepages(struct address_space *mapping,
+                                struct writeback_control *wbc)
+{
+        struct inode *inode = mapping->host;
+        handle_t *handle = NULL;
+        int needed_blocks;
+        int ret = 0;
+        long to_write;
+        loff_t range_start = 0;
+
+        /*
+         * No pages to write? This is mainly a kludge to avoid starting
+         * a transaction for special inodes like journal inode on last iput()
+         * because that could violate lock ordering on umount
+         */
+        if (!mapping->nrpages)
+                return 0;
+
+        /*
+         * Estimate the worse case needed credits to write out
+         * EXT4_MAX_BUF_BLOCKS pages
+         */
+        needed_blocks = EXT4_MAX_WRITEBACK_CREDITS;
+
+        to_write = wbc->nr_to_write;
+        if (!wbc->range_cyclic) {
+                /*
+                 * If range_cyclic is not set force range_cont
+                 * and save the old writeback_index
+                 */
+                wbc->range_cont = 1;
+                range_start =  wbc->range_start;
+        }
+
+        while (!ret && to_write) {
+                /* start a new transaction*/
+                handle = ext4_journal_start(inode, needed_blocks);
+                if (IS_ERR(handle)) {
+                        ret = PTR_ERR(handle);
+                        goto out_writepages;
+                }
+                if (ext4_should_order_data(inode)) {
+                        /*
+                         * With ordered mode we need to add
+                         * the inode to the journal handle
+                         * when we do block allocation.
+                         */
+                        ret = ext4_jbd2_file_inode(handle, inode);
+                        if (ret) {
+                                ext4_journal_stop(handle);
+                                goto out_writepages;
+                        }
+
+                }
+                /*
+                 * set the max dirty pages could be write at a time
+                 * to fit into the reserved transaction credits
+                 */
+                if (wbc->nr_to_write > EXT4_MAX_WRITEBACK_PAGES)
+                        wbc->nr_to_write = EXT4_MAX_WRITEBACK_PAGES;
+
+                to_write -= wbc->nr_to_write;
+                ret = mpage_da_writepages(mapping, wbc,
+                                                ext4_da_get_block_write);
+                ext4_journal_stop(handle);
+                if (wbc->nr_to_write) {
+                        /*
+                         * There is no more writeout needed
+                         * or we requested for a noblocking writeout
+                         * and we found the device congested
+                         */
+                        to_write += wbc->nr_to_write;
+                        break;
+                }
+                wbc->nr_to_write = to_write;
+        }
+
+out_writepages:
+        wbc->nr_to_write = to_write;
+        if (range_start)
+                wbc->range_start = range_start;
+        return ret;
+}
+
+static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
+                                loff_t pos, unsigned len, unsigned flags,
+                                struct page **pagep, void **fsdata)
+{
+        int ret, retries = 0;
+        struct page *page;
+        pgoff_t index;
+        unsigned from, to;
+        struct inode *inode = mapping->host;
+        handle_t *handle;
+
+        index = pos >> PAGE_CACHE_SHIFT;
+        from = pos & (PAGE_CACHE_SIZE - 1);
+        to = from + len;
+
+retry:
+        /*
+         * With delayed allocation, we don't log the i_disksize update
+         * if there is delayed block allocation. But we still need
+         * to journalling the i_disksize update if writes to the end
+         * of file which has an already mapped buffer.
+         */
+        handle = ext4_journal_start(inode, 1);
+        if (IS_ERR(handle)) {
+                ret = PTR_ERR(handle);
+                goto out;
+        }
+
+        page = __grab_cache_page(mapping, index);
+        if (!page)
+                return -ENOMEM;
+        *pagep = page;
+
+        ret = block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+                                                        ext4_da_get_block_prep);
+        if (ret < 0) {
+                unlock_page(page);
+                ext4_journal_stop(handle);
+                page_cache_release(page);
+        }
+
+        if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
+                goto retry;
+out:
+        return ret;
+}
+
+/*
+ * Check if we should update i_disksize
+ * when write to the end of file but not require block allocation
+ */
+static int ext4_da_should_update_i_disksize(struct page *page,
+                                         unsigned long offset)
+{
+        struct buffer_head *bh;
+        struct inode *inode = page->mapping->host;
+        unsigned int idx;
+        int i;
+
+        bh = page_buffers(page);
+        idx = offset >> inode->i_blkbits;
+
+        for (i=0; i < idx; i++)
+                bh = bh->b_this_page;
+
+        if (!buffer_mapped(bh) || (buffer_delay(bh)))
+                return 0;
+        return 1;
+}
+
+static int ext4_da_write_end(struct file *file,
+                                struct address_space *mapping,
+                                loff_t pos, unsigned len, unsigned copied,
+                                struct page *page, void *fsdata)
+{
+        struct inode *inode = mapping->host;
+        int ret = 0, ret2;
+        handle_t *handle = ext4_journal_current_handle();
+        loff_t new_i_size;
+        unsigned long start, end;
+
+        start = pos & (PAGE_CACHE_SIZE - 1);
+        end = start + copied -1;
+
+        /*
+         * generic_write_end() will run mark_inode_dirty() if i_size
+         * changes.  So let's piggyback the i_disksize mark_inode_dirty
+         * into that.
+         */
+
+        new_i_size = pos + copied;
+        if (new_i_size > EXT4_I(inode)->i_disksize) {
+                if (ext4_da_should_update_i_disksize(page, end)) {
+                        down_write(&EXT4_I(inode)->i_data_sem);
+                        if (new_i_size > EXT4_I(inode)->i_disksize) {
+                                /*
+                                 * Updating i_disksize when extending file
+                                 * without needing block allocation
+                                 */
+                                if (ext4_should_order_data(inode))
+                                        ret = ext4_jbd2_file_inode(handle,
+                                                                   inode);
+
+                                EXT4_I(inode)->i_disksize = new_i_size;
+                        }
+                        up_write(&EXT4_I(inode)->i_data_sem);
+                }
+        }
+        ret2 = generic_write_end(file, mapping, pos, len, copied,
+                                                        page, fsdata);
+        copied = ret2;
+        if (ret2 < 0)
+                ret = ret2;
+        ret2 = ext4_journal_stop(handle);
+        if (!ret)
+                ret = ret2;
+
+        return ret ? ret : copied;
+}
+
+static void ext4_da_invalidatepage(struct page *page, unsigned long offset)
+{
+        /*
+         * Drop reserved blocks
+         */
+        BUG_ON(!PageLocked(page));
+        if (!page_has_buffers(page))
+                goto out;
+
+        ext4_da_page_release_reservation(page, offset);
+
+out:
+        ext4_invalidatepage(page, offset);
+
+        return;
+}
+
 
 /*
  * bmap() is special.  It gets used by applications such as lilo and by
@@ -1418,6 +2409,16 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
         journal_t *journal;
         int err;
 
+        if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY) &&
+                        test_opt(inode->i_sb, DELALLOC)) {
+                /*
+                 * With delalloc we want to sync the file
+                 * so that we can make sure we allocate
+                 * blocks for file
+                 */
+                filemap_write_and_wait(mapping);
+        }
+
         if (EXT4_I(inode)->i_state & EXT4_STATE_JDATA) {
                 /*
                  * This is a REALLY heavyweight approach, but the use of
@@ -1462,21 +2463,17 @@ static int bput_one(handle_t *handle, struct buffer_head *bh)
         return 0;
 }
 
-static int jbd2_journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
-{
-        if (buffer_mapped(bh))
-                return ext4_journal_dirty_data(handle, bh);
-        return 0;
-}
-
 /*
- * Note that we always start a transaction even if we're not journalling
- * data.  This is to preserve ordering: any hole instantiation within
- * __block_write_full_page -> ext4_get_block() should be journalled
- * along with the data so we don't crash and then get metadata which
- * refers to old data.
+ * Note that we don't need to start a transaction unless we're journaling data
+ * because we should have holes filled from ext4_page_mkwrite(). We even don't
+ * need to file the inode to the transaction's list in ordered mode because if
+ * we are writing back data added by write(), the inode is already there and if
+ * we are writing back data modified via mmap(), noone guarantees in which
+ * transaction the data will hit the disk. In case we are journaling data, we
+ * cannot start transaction directly because transaction start ranks above page
+ * lock so we have to do some magic.
  *
- * In all journalling modes block_write_full_page() will start the I/O.
+ * In all journaling modes block_write_full_page() will start the I/O.
  *
  * Problem:
  *
@@ -1518,105 +2515,103 @@ static int jbd2_journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
  * disastrous.  Any write() or metadata operation will sync the fs for
  * us.
  *
- * AKPM2: if all the page's buffers are mapped to disk and !data=journal,
- * we don't need to open a transaction here.
  */
-static int ext4_ordered_writepage(struct page *page,
+static int __ext4_normal_writepage(struct page *page,
                                 struct writeback_control *wbc)
 {
         struct inode *inode = page->mapping->host;
-        struct buffer_head *page_bufs;
-        handle_t *handle = NULL;
-        int ret = 0;
-        int err;
-
-        J_ASSERT(PageLocked(page));
-
-        /*
-         * We give up here if we're reentered, because it might be for a
-         * different filesystem.
-         */
-        if (ext4_journal_current_handle())
-                goto out_fail;
 
-        handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
+        if (test_opt(inode->i_sb, NOBH))
+                return nobh_writepage(page,
+                                        ext4_normal_get_block_write, wbc);
+        else
+                return block_write_full_page(page,
+                                                ext4_normal_get_block_write,
+                                                wbc);
+}
 
-        if (IS_ERR(handle)) {
-                ret = PTR_ERR(handle);
-                goto out_fail;
-        }
+static int ext4_normal_writepage(struct page *page,
+                                struct writeback_control *wbc)
+{
+        struct inode *inode = page->mapping->host;
+        loff_t size = i_size_read(inode);
+        loff_t len;
 
-        if (!page_has_buffers(page)) {
-                create_empty_buffers(page, inode->i_sb->s_blocksize,
-                                (1 << BH_Dirty)|(1 << BH_Uptodate));
+        J_ASSERT(PageLocked(page));
+        if (page->index == size >> PAGE_CACHE_SHIFT)
+                len = size & ~PAGE_CACHE_MASK;
+        else
+                len = PAGE_CACHE_SIZE;
+
+        if (page_has_buffers(page)) {
+                /* if page has buffers it should all be mapped
+                 * and allocated. If there are not buffers attached
+                 * to the page we know the page is dirty but it lost
+                 * buffers. That means that at some moment in time
+                 * after write_begin() / write_end() has been called
+                 * all buffers have been clean and thus they must have been
+                 * written at least once. So they are all mapped and we can
+                 * happily proceed with mapping them and writing the page.
+                 */
+                BUG_ON(walk_page_buffers(NULL, page_buffers(page), 0, len, NULL,
+                                        ext4_bh_unmapped_or_delay));
         }
-        page_bufs = page_buffers(page);
-        walk_page_buffers(handle, page_bufs, 0,
-                        PAGE_CACHE_SIZE, NULL, bget_one);
-
-        ret = block_write_full_page(page, ext4_get_block, wbc);
 
-        /*
-         * The page can become unlocked at any point now, and
-         * truncate can then come in and change things.  So we
-         * can't touch *page from now on.  But *page_bufs is
-         * safe due to elevated refcount.
-         */
+        if (!ext4_journal_current_handle())
+                return __ext4_normal_writepage(page, wbc);
 
-        /*
-         * And attach them to the current transaction.  But only if
-         * block_write_full_page() succeeded.  Otherwise they are unmapped,
-         * and generally junk.
-         */
-        if (ret == 0) {
-                err = walk_page_buffers(handle, page_bufs, 0, PAGE_CACHE_SIZE,
-                                        NULL, jbd2_journal_dirty_data_fn);
-                if (!ret)
-                        ret = err;
-        }
-        walk_page_buffers(handle, page_bufs, 0,
-                        PAGE_CACHE_SIZE, NULL, bput_one);
-        err = ext4_journal_stop(handle);
-        if (!ret)
-                ret = err;
-        return ret;
-
-out_fail:
         redirty_page_for_writepage(wbc, page);
         unlock_page(page);
-        return ret;
+        return 0;
 }
 
-static int ext4_writeback_writepage(struct page *page,
+static int __ext4_journalled_writepage(struct page *page,
                                 struct writeback_control *wbc)
 {
-        struct inode *inode = page->mapping->host;
+        struct address_space *mapping = page->mapping;
+        struct inode *inode = mapping->host;
+        struct buffer_head *page_bufs;
         handle_t *handle = NULL;
         int ret = 0;
         int err;
 
-        if (ext4_journal_current_handle())
-                goto out_fail;
+        ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE,
+                                        ext4_normal_get_block_write);
+        if (ret != 0)
+                goto out_unlock;
+
+        page_bufs = page_buffers(page);
+        walk_page_buffers(handle, page_bufs, 0, PAGE_CACHE_SIZE, NULL,
+                                                                bget_one);
+        /* As soon as we unlock the page, it can go away, but we have
+         * references to buffers so we are safe */
+        unlock_page(page);
 
         handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
         if (IS_ERR(handle)) {
                 ret = PTR_ERR(handle);
-                goto out_fail;
+                goto out;
         }
 
-        if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
-                ret = nobh_writepage(page, ext4_get_block, wbc);
-        else
-                ret = block_write_full_page(page, ext4_get_block, wbc);
+        ret = walk_page_buffers(handle, page_bufs, 0,
+                        PAGE_CACHE_SIZE, NULL, do_journal_get_write_access);
 
+        err = walk_page_buffers(handle, page_bufs, 0,
+                                PAGE_CACHE_SIZE, NULL, write_end_fn);
+        if (ret == 0)
+                ret = err;
         err = ext4_journal_stop(handle);
         if (!ret)
                 ret = err;
-        return ret;
 
-out_fail:
-        redirty_page_for_writepage(wbc, page);
+        walk_page_buffers(handle, page_bufs, 0,
+                                PAGE_CACHE_SIZE, NULL, bput_one);
+        EXT4_I(inode)->i_state |= EXT4_STATE_JDATA;
+        goto out;
+
+out_unlock:
         unlock_page(page);
+out:
         return ret;
 }
 
@@ -1624,59 +2619,53 @@ static int ext4_journalled_writepage(struct page *page,
                                 struct writeback_control *wbc)
 {
         struct inode *inode = page->mapping->host;
-        handle_t *handle = NULL;
-        int ret = 0;
-        int err;
+        loff_t size = i_size_read(inode);
+        loff_t len;
 
-        if (ext4_journal_current_handle())
-                goto no_write;
+        J_ASSERT(PageLocked(page));
+        if (page->index == size >> PAGE_CACHE_SHIFT)
+                len = size & ~PAGE_CACHE_MASK;
+        else
+                len = PAGE_CACHE_SIZE;
+
+        if (page_has_buffers(page)) {
+                /* if page has buffers it should all be mapped
+                 * and allocated. If there are not buffers attached
+                 * to the page we know the page is dirty but it lost
+                 * buffers. That means that at some moment in time
+                 * after write_begin() / write_end() has been called
+                 * all buffers have been clean and thus they must have been
+                 * written at least once. So they are all mapped and we can
+                 * happily proceed with mapping them and writing the page.
+                 */
+                BUG_ON(walk_page_buffers(NULL, page_buffers(page), 0, len, NULL,
+                                        ext4_bh_unmapped_or_delay));
+        }
 
-        handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
-        if (IS_ERR(handle)) {
-                ret = PTR_ERR(handle);
+        if (ext4_journal_current_handle())
                 goto no_write;
-        }
 
-        if (!page_has_buffers(page) || PageChecked(page)) {
+        if (PageChecked(page)) {
                 /*
                  * It's mmapped pagecache.  Add buffers and journal it.  There
                  * doesn't seem much point in redirtying the page here.
                  */
                 ClearPageChecked(page);
-                ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE,
-                                        ext4_get_block);
-                if (ret != 0) {
-                        ext4_journal_stop(handle);
-                        goto out_unlock;
-                }
-                ret = walk_page_buffers(handle, page_buffers(page), 0,
-                        PAGE_CACHE_SIZE, NULL, do_journal_get_write_access);
-
-                err = walk_page_buffers(handle, page_buffers(page), 0,
-                                PAGE_CACHE_SIZE, NULL, write_end_fn);
-                if (ret == 0)
-                        ret = err;
-                EXT4_I(inode)->i_state |= EXT4_STATE_JDATA;
-                unlock_page(page);
+                return __ext4_journalled_writepage(page, wbc);
         } else {
                 /*
                  * It may be a page full of checkpoint-mode buffers.  We don't
                  * really know unless we go poke around in the buffer_heads.
                  * But block_write_full_page will do the right thing.
                  */
-                ret = block_write_full_page(page, ext4_get_block, wbc);
+                return block_write_full_page(page,
+                                                ext4_normal_get_block_write,
+                                                wbc);
         }
-        err = ext4_journal_stop(handle);
-        if (!ret)
-                ret = err;
-out:
-        return ret;
-
 no_write:
         redirty_page_for_writepage(wbc, page);
-out_unlock:
         unlock_page(page);
-        goto out;
+        return 0;
 }
 
 static int ext4_readpage(struct file *file, struct page *page)
@@ -1819,7 +2808,7 @@ static int ext4_journalled_set_page_dirty(struct page *page)
 static const struct address_space_operations ext4_ordered_aops = {
         .readpage       = ext4_readpage,
         .readpages      = ext4_readpages,
-        .writepage      = ext4_ordered_writepage,
+        .writepage      = ext4_normal_writepage,
         .sync_page      = block_sync_page,
         .write_begin    = ext4_write_begin,
         .write_end      = ext4_ordered_write_end,
@@ -1833,7 +2822,7 @@ static const struct address_space_operations ext4_ordered_aops = {
 static const struct address_space_operations ext4_writeback_aops = {
         .readpage       = ext4_readpage,
         .readpages      = ext4_readpages,
-        .writepage      = ext4_writeback_writepage,
+        .writepage      = ext4_normal_writepage,
         .sync_page      = block_sync_page,
         .write_begin    = ext4_write_begin,
         .write_end      = ext4_writeback_write_end,
@@ -1857,10 +2846,31 @@ static const struct address_space_operations ext4_journalled_aops = {
         .releasepage    = ext4_releasepage,
 };
 
+static const struct address_space_operations ext4_da_aops = {
+        .readpage       = ext4_readpage,
+        .readpages      = ext4_readpages,
+        .writepage      = ext4_da_writepage,
+        .writepages     = ext4_da_writepages,
+        .sync_page      = block_sync_page,
+        .write_begin    = ext4_da_write_begin,
+        .write_end      = ext4_da_write_end,
+        .bmap           = ext4_bmap,
+        .invalidatepage = ext4_da_invalidatepage,
+        .releasepage    = ext4_releasepage,
+        .direct_IO      = ext4_direct_IO,
+        .migratepage    = buffer_migrate_page,
+};
+
 void ext4_set_aops(struct inode *inode)
 {
-        if (ext4_should_order_data(inode))
+        if (ext4_should_order_data(inode) &&
+                test_opt(inode->i_sb, DELALLOC))
+                inode->i_mapping->a_ops = &ext4_da_aops;
+        else if (ext4_should_order_data(inode))
                 inode->i_mapping->a_ops = &ext4_ordered_aops;
+        else if (ext4_should_writeback_data(inode) &&
+                 test_opt(inode->i_sb, DELALLOC))
+                inode->i_mapping->a_ops = &ext4_da_aops;
         else if (ext4_should_writeback_data(inode))
                 inode->i_mapping->a_ops = &ext4_writeback_aops;
         else
@@ -1873,7 +2883,7 @@ void ext4_set_aops(struct inode *inode)
  * This required during truncate. We need to physically zero the tail end
  * of that block so it doesn't yield old data if the file is later grown.
  */
-int ext4_block_truncate_page(handle_t *handle, struct page *page,
+int ext4_block_truncate_page(handle_t *handle,
                 struct address_space *mapping, loff_t from)
 {
         ext4_fsblk_t index = from >> PAGE_CACHE_SHIFT;
@@ -1882,8 +2892,13 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page,
         ext4_lblk_t iblock;
         struct inode *inode = mapping->host;
         struct buffer_head *bh;
+        struct page *page;
         int err = 0;
 
+        page = grab_cache_page(mapping, from >> PAGE_CACHE_SHIFT);
+        if (!page)
+                return -EINVAL;
+
         blocksize = inode->i_sb->s_blocksize;
         length = blocksize - (offset & (blocksize - 1));
         iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
@@ -1956,7 +2971,7 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page,
                 err = ext4_journal_dirty_metadata(handle, bh);
         } else {
                 if (ext4_should_order_data(inode))
-                        err = ext4_journal_dirty_data(handle, bh);
+                        err = ext4_jbd2_file_inode(handle, inode);
                 mark_buffer_dirty(bh);
         }
 
@@ -2179,7 +3194,21 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
 
         if (this_bh) {
                 BUFFER_TRACE(this_bh, "call ext4_journal_dirty_metadata");
-                ext4_journal_dirty_metadata(handle, this_bh);
+
+                /*
+                 * The buffer head should have an attached journal head at this
+                 * point. However, if the data is corrupted and an indirect
+                 * block pointed to itself, it would have been detached when
+                 * the block was cleared. Check for this instead of OOPSing.
+                 */
+                if (bh2jh(this_bh))
+                        ext4_journal_dirty_metadata(handle, this_bh);
+                else
+                        ext4_error(inode->i_sb, __func__,
+                                   "circular indirect block detected, "
+                                   "inode=%lu, block=%llu",
+                                   inode->i_ino,
+                                   (unsigned long long) this_bh->b_blocknr);
         }
 }
 
@@ -2305,6 +3334,19 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
         }
 }
 
+int ext4_can_truncate(struct inode *inode)
+{
+        if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+                return 0;
+        if (S_ISREG(inode->i_mode))
+                return 1;
+        if (S_ISDIR(inode->i_mode))
+                return 1;
+        if (S_ISLNK(inode->i_mode))
+                return !ext4_inode_is_fast_symlink(inode);
+        return 0;
+}
+
 /*
  * ext4_truncate()
  *
@@ -2347,51 +3389,25 @@ void ext4_truncate(struct inode *inode)
         int n;
         ext4_lblk_t last_block;
         unsigned blocksize = inode->i_sb->s_blocksize;
-        struct page *page;
 
-        if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
-            S_ISLNK(inode->i_mode)))
-                return;
-        if (ext4_inode_is_fast_symlink(inode))
-                return;
-        if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+        if (!ext4_can_truncate(inode))
                 return;
 
-        /*
-         * We have to lock the EOF page here, because lock_page() nests
-         * outside jbd2_journal_start().
-         */
-        if ((inode->i_size & (blocksize - 1)) == 0) {
-                /* Block boundary? Nothing to do */
-                page = NULL;
-        } else {
-                page = grab_cache_page(mapping,
-                                inode->i_size >> PAGE_CACHE_SHIFT);
-                if (!page)
-                        return;
-        }
-
         if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
-                ext4_ext_truncate(inode, page);
+                ext4_ext_truncate(inode);
                 return;
         }
 
         handle = start_transaction(inode);
-        if (IS_ERR(handle)) {
-                if (page) {
-                        clear_highpage(page);
-                        flush_dcache_page(page);
-                        unlock_page(page);
-                        page_cache_release(page);
-                }
+        if (IS_ERR(handle))
                 return;         /* AKPM: return what? */
-        }
 
         last_block = (inode->i_size + blocksize-1)
                                         >> EXT4_BLOCK_SIZE_BITS(inode->i_sb);
 
-        if (page)
-                ext4_block_truncate_page(handle, page, mapping, inode->i_size);
+        if (inode->i_size & (blocksize - 1))
+                if (ext4_block_truncate_page(handle, mapping, inode->i_size))
+                        goto out_stop;
 
         n = ext4_block_to_path(inode, last_block, offsets, NULL);
         if (n == 0)
@@ -2410,6 +3426,11 @@ void ext4_truncate(struct inode *inode)
                 goto out_stop;
 
         /*
+         * From here we block out all ext4_get_block() callers who want to
+         * modify the block allocation tree.
+         */
+        down_write(&ei->i_data_sem);
+        /*
          * The orphan list entry will now protect us from any crash which
          * occurs before the truncate completes, so it is now safe to propagate
          * the new, shorter inode size (held for now in i_size) into the
@@ -2418,12 +3439,6 @@ void ext4_truncate(struct inode *inode)
          */
         ei->i_disksize = inode->i_size;
 
-        /*
-         * From here we block out all ext4_get_block() callers who want to
-         * modify the block allocation tree.
-         */
-        down_write(&ei->i_data_sem);
-
         if (n == 1) {           /* direct blocks */
                 ext4_free_data(handle, inode, NULL, i_data+offsets[0],
                                i_data + EXT4_NDIR_BLOCKS);
@@ -3107,7 +4122,14 @@ int ext4_write_inode(struct inode *inode, int wait)
  * be freed, so we have a strong guarantee that no future commit will
  * leave these blocks visible to the user.)
  *
- * Called with inode->sem down.
+ * Another thing we have to assure is that if we are in ordered mode
+ * and inode is still attached to the committing transaction, we must
+ * we start writeout of all the dirty pages which are being truncated.
+ * This way we are sure that all the data written in the previous
+ * transaction are already on disk (truncate waits for pages under
+ * writeback).
+ *
+ * Called with inode->i_mutex down.
  */
 int ext4_setattr(struct dentry *dentry, struct iattr *attr)
 {
@@ -3173,6 +4195,22 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
                 if (!error)
                         error = rc;
                 ext4_journal_stop(handle);
+
+                if (ext4_should_order_data(inode)) {
+                        error = ext4_begin_ordered_truncate(inode,
+                                                            attr->ia_size);
+                        if (error) {
+                                /* Do as much error cleanup as possible */
+                                handle = ext4_journal_start(inode, 3);
+                                if (IS_ERR(handle)) {
+                                        ext4_orphan_del(NULL, inode);
+                                        goto err_out;
+                                }
+                                ext4_orphan_del(handle, inode);
+                                ext4_journal_stop(handle);
+                                goto err_out;
+                        }
+                }
         }
 
         rc = inode_setattr(inode, attr);
@@ -3193,6 +4231,32 @@ err_out:
         return error;
 }
 
+int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
+                 struct kstat *stat)
+{
+        struct inode *inode;
+        unsigned long delalloc_blocks;
+
+        inode = dentry->d_inode;
+        generic_fillattr(inode, stat);
+
+        /*
+         * We can't update i_blocks if the block allocation is delayed
+         * otherwise in the case of system crash before the real block
+         * allocation is done, we will have i_blocks inconsistent with
+         * on-disk file blocks.
+         * We always keep i_blocks updated together with real
+         * allocation. But to not confuse with user, stat
+         * will return the blocks that include the delayed allocation
+         * blocks for this file.
+         */
+        spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
+        delalloc_blocks = EXT4_I(inode)->i_reserved_data_blocks;
+        spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+
+        stat->blocks += (delalloc_blocks << inode->i_sb->s_blocksize_bits)>>9;
+        return 0;
+}
 
 /*
  * How many blocks doth make a writepage()?
@@ -3506,3 +4570,64 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val)
 
         return err;
 }
+
+static int ext4_bh_unmapped(handle_t *handle, struct buffer_head *bh)
+{
+        return !buffer_mapped(bh);
+}
+
+int ext4_page_mkwrite(struct vm_area_struct *vma, struct page *page)
+{
+        loff_t size;
+        unsigned long len;
+        int ret = -EINVAL;
+        struct file *file = vma->vm_file;
+        struct inode *inode = file->f_path.dentry->d_inode;
+        struct address_space *mapping = inode->i_mapping;
+
+        /*
+         * Get i_alloc_sem to stop truncates messing with the inode. We cannot
+         * get i_mutex because we are already holding mmap_sem.
+         */
+        down_read(&inode->i_alloc_sem);
+        size = i_size_read(inode);
+        if (page->mapping != mapping || size <= page_offset(page)
+            || !PageUptodate(page)) {
+                /* page got truncated from under us? */
+                goto out_unlock;
+        }
+        ret = 0;
+        if (PageMappedToDisk(page))
+                goto out_unlock;
+
+        if (page->index == size >> PAGE_CACHE_SHIFT)
+                len = size & ~PAGE_CACHE_MASK;
+        else
+                len = PAGE_CACHE_SIZE;
+
+        if (page_has_buffers(page)) {
+                /* return if we have all the buffers mapped */
+                if (!walk_page_buffers(NULL, page_buffers(page), 0, len, NULL,
+                                       ext4_bh_unmapped))
+                        goto out_unlock;
+        }
+        /*
+         * OK, we need to fill the hole... Do write_begin write_end
+         * to do block allocation/reservation.We are not holding
+         * inode.i__mutex here. That allow * parallel write_begin,
+         * write_end call. lock_page prevent this from happening
+         * on the same page though
+         */
+        ret = mapping->a_ops->write_begin(file, mapping, page_offset(page),
+                        len, AOP_FLAG_UNINTERRUPTIBLE, &page, NULL);
+        if (ret < 0)
+                goto out_unlock;
+        ret = mapping->a_ops->write_end(file, mapping, page_offset(page),
+                        len, len, page, NULL);
+        if (ret < 0)
+                goto out_unlock;
+        ret = 0;
+out_unlock:
+        up_read(&inode->i_alloc_sem);
+        return ret;
+}
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index c9900aade15..8d141a25bbe 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -381,22 +381,28 @@ static inline void mb_clear_bit_atomic(spinlock_t *lock, int bit, void *addr)
 
 static inline int mb_find_next_zero_bit(void *addr, int max, int start)
 {
-        int fix = 0;
+        int fix = 0, ret, tmpmax;
         addr = mb_correct_addr_and_bit(&fix, addr);
-        max += fix;
+        tmpmax = max + fix;
         start += fix;
 
-        return ext4_find_next_zero_bit(addr, max, start) - fix;
+        ret = ext4_find_next_zero_bit(addr, tmpmax, start) - fix;
+        if (ret > max)
+                return max;
+        return ret;
 }
 
 static inline int mb_find_next_bit(void *addr, int max, int start)
 {
-        int fix = 0;
+        int fix = 0, ret, tmpmax;
         addr = mb_correct_addr_and_bit(&fix, addr);
-        max += fix;
+        tmpmax = max + fix;
         start += fix;
 
-        return ext4_find_next_bit(addr, max, start) - fix;
+        ret = ext4_find_next_bit(addr, tmpmax, start) - fix;
+        if (ret > max)
+                return max;
+        return ret;
 }
 
 static void *mb_find_buddy(struct ext4_buddy *e4b, int order, int *max)
@@ -803,6 +809,7 @@ static int ext4_mb_init_cache(struct page *page, char *incore)
                 if (!buffer_uptodate(bh[i]))
                         goto out;
 
+        err = 0;
         first_block = page->index * blocks_per_page;
         for (i = 0; i < blocks_per_page; i++) {
                 int group;
@@ -883,6 +890,7 @@ ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
         int pnum;
         int poff;
         struct page *page;
+        int ret;
 
         mb_debug("load group %lu\n", group);
 
@@ -914,15 +922,21 @@ ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
                 if (page) {
                         BUG_ON(page->mapping != inode->i_mapping);
                         if (!PageUptodate(page)) {
-                                ext4_mb_init_cache(page, NULL);
+                                ret = ext4_mb_init_cache(page, NULL);
+                                if (ret) {
+                                        unlock_page(page);
+                                        goto err;
+                                }
                                 mb_cmp_bitmaps(e4b, page_address(page) +
                                                (poff * sb->s_blocksize));
                         }
                         unlock_page(page);
                 }
         }
-        if (page == NULL || !PageUptodate(page))
+        if (page == NULL || !PageUptodate(page)) {
+                ret = -EIO;
                 goto err;
+        }
         e4b->bd_bitmap_page = page;
         e4b->bd_bitmap = page_address(page) + (poff * sb->s_blocksize);
         mark_page_accessed(page);
@@ -938,14 +952,20 @@ ext4_mb_load_buddy(struct super_block *sb, ext4_group_t group,
                 page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
                 if (page) {
                         BUG_ON(page->mapping != inode->i_mapping);
-                        if (!PageUptodate(page))
-                                ext4_mb_init_cache(page, e4b->bd_bitmap);
-
+                        if (!PageUptodate(page)) {
+                                ret = ext4_mb_init_cache(page, e4b->bd_bitmap);
+                                if (ret) {
+                                        unlock_page(page);
+                                        goto err;
+                                }
+                        }
                         unlock_page(page);
                 }
         }
-        if (page == NULL || !PageUptodate(page))
+        if (page == NULL || !PageUptodate(page)) {
+                ret = -EIO;
                 goto err;
+        }
         e4b->bd_buddy_page = page;
         e4b->bd_buddy = page_address(page) + (poff * sb->s_blocksize);
         mark_page_accessed(page);
@@ -962,7 +982,7 @@ err:
                 page_cache_release(e4b->bd_buddy_page);
         e4b->bd_buddy = NULL;
         e4b->bd_bitmap = NULL;
-        return -EIO;
+        return ret;
 }
 
 static void ext4_mb_release_desc(struct ext4_buddy *e4b)
@@ -1031,7 +1051,7 @@ static void mb_set_bits(spinlock_t *lock, void *bm, int cur, int len)
         }
 }
 
-static int mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b,
+static void mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b,
                           int first, int count)
 {
         int block = 0;
@@ -1071,11 +1091,12 @@ static int mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b,
                         blocknr += block;
                         blocknr +=
                             le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block);
-
+                        ext4_unlock_group(sb, e4b->bd_group);
                         ext4_error(sb, __func__, "double-free of inode"
                                    " %lu's block %llu(bit %u in group %lu)\n",
                                    inode ? inode->i_ino : 0, blocknr, block,
                                    e4b->bd_group);
+                        ext4_lock_group(sb, e4b->bd_group);
                 }
                 mb_clear_bit(block, EXT4_MB_BITMAP(e4b));
                 e4b->bd_info->bb_counters[order]++;
@@ -1113,8 +1134,6 @@ static int mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b,
                 } while (1);
         }
         mb_check_buddy(e4b);
-
-        return 0;
 }
 
 static int mb_find_extent(struct ext4_buddy *e4b, int order, int block,
@@ -1730,10 +1749,6 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
                 ac->ac_g_ex.fe_start = sbi->s_mb_last_start;
                 spin_unlock(&sbi->s_md_lock);
         }
-
-        /* searching for the right group start from the goal value specified */
-        group = ac->ac_g_ex.fe_group;
-
         /* Let's just scan groups to find more-less suitable blocks */
         cr = ac->ac_2order ? 0 : 1;
         /*
@@ -1743,6 +1758,12 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
 repeat:
         for (; cr < 4 && ac->ac_status == AC_STATUS_CONTINUE; cr++) {
                 ac->ac_criteria = cr;
+                /*
+                 * searching for the right group start
+                 * from the goal value specified
+                 */
+                group = ac->ac_g_ex.fe_group;
+
                 for (i = 0; i < EXT4_SB(sb)->s_groups_count; group++, i++) {
                         struct ext4_group_info *grp;
                         struct ext4_group_desc *desc;
@@ -1963,6 +1984,8 @@ static int ext4_mb_seq_history_open(struct inode *inode, struct file *file)
         int rc;
         int size;
 
+        if (unlikely(sbi->s_mb_history == NULL))
+                return -ENOMEM;
         s = kmalloc(sizeof(*s), GFP_KERNEL);
         if (s == NULL)
                 return -ENOMEM;
@@ -2165,9 +2188,7 @@ static void ext4_mb_history_init(struct super_block *sb)
         sbi->s_mb_history_cur = 0;
         spin_lock_init(&sbi->s_mb_history_lock);
         i = sbi->s_mb_history_max * sizeof(struct ext4_mb_history);
-        sbi->s_mb_history = kmalloc(i, GFP_KERNEL);
-        if (likely(sbi->s_mb_history != NULL))
-                memset(sbi->s_mb_history, 0, i);
+        sbi->s_mb_history = kzalloc(i, GFP_KERNEL);
         /* if we can't allocate history, then we simple won't use it */
 }
 
@@ -2215,21 +2236,192 @@ ext4_mb_store_history(struct ext4_allocation_context *ac)
 #define ext4_mb_history_init(sb)
 #endif
 
+
+/* Create and initialize ext4_group_info data for the given group. */
+int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
+                          struct ext4_group_desc *desc)
+{
+        int i, len;
+        int metalen = 0;
+        struct ext4_sb_info *sbi = EXT4_SB(sb);
+        struct ext4_group_info **meta_group_info;
+
+        /*
+         * First check if this group is the first of a reserved block.
+         * If it's true, we have to allocate a new table of pointers
+         * to ext4_group_info structures
+         */
+        if (group % EXT4_DESC_PER_BLOCK(sb) == 0) {
+                metalen = sizeof(*meta_group_info) <<
+                        EXT4_DESC_PER_BLOCK_BITS(sb);
+                meta_group_info = kmalloc(metalen, GFP_KERNEL);
+                if (meta_group_info == NULL) {
+                        printk(KERN_ERR "EXT4-fs: can't allocate mem for a "
+                               "buddy group\n");
+                        goto exit_meta_group_info;
+                }
+                sbi->s_group_info[group >> EXT4_DESC_PER_BLOCK_BITS(sb)] =
+                        meta_group_info;
+        }
+
+        /*
+         * calculate needed size. if change bb_counters size,
+         * don't forget about ext4_mb_generate_buddy()
+         */
+        len = offsetof(typeof(**meta_group_info),
+                       bb_counters[sb->s_blocksize_bits + 2]);
+
+        meta_group_info =
+                sbi->s_group_info[group >> EXT4_DESC_PER_BLOCK_BITS(sb)];
+        i = group & (EXT4_DESC_PER_BLOCK(sb) - 1);
+
+        meta_group_info[i] = kzalloc(len, GFP_KERNEL);
+        if (meta_group_info[i] == NULL) {
+                printk(KERN_ERR "EXT4-fs: can't allocate buddy mem\n");
+                goto exit_group_info;
+        }
+        set_bit(EXT4_GROUP_INFO_NEED_INIT_BIT,
+                &(meta_group_info[i]->bb_state));
+
+        /*
+         * initialize bb_free to be able to skip
+         * empty groups without initialization
+         */
+        if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
+                meta_group_info[i]->bb_free =
+                        ext4_free_blocks_after_init(sb, group, desc);
+        } else {
+                meta_group_info[i]->bb_free =
+                        le16_to_cpu(desc->bg_free_blocks_count);
+        }
+
+        INIT_LIST_HEAD(&meta_group_info[i]->bb_prealloc_list);
+
+#ifdef DOUBLE_CHECK
+        {
+                struct buffer_head *bh;
+                meta_group_info[i]->bb_bitmap =
+                        kmalloc(sb->s_blocksize, GFP_KERNEL);
+                BUG_ON(meta_group_info[i]->bb_bitmap == NULL);
+                bh = ext4_read_block_bitmap(sb, group);
+                BUG_ON(bh == NULL);
+                memcpy(meta_group_info[i]->bb_bitmap, bh->b_data,
+                        sb->s_blocksize);
+                put_bh(bh);
+        }
+#endif
+
+        return 0;
+
+exit_group_info:
+        /* If a meta_group_info table has been allocated, release it now */
+        if (group % EXT4_DESC_PER_BLOCK(sb) == 0)
+                kfree(sbi->s_group_info[group >> EXT4_DESC_PER_BLOCK_BITS(sb)]);
+exit_meta_group_info:
+        return -ENOMEM;
+} /* ext4_mb_add_groupinfo */
+
+/*
+ * Add a group to the existing groups.
+ * This function is used for online resize
+ */
+int ext4_mb_add_more_groupinfo(struct super_block *sb, ext4_group_t group,
+                               struct ext4_group_desc *desc)
+{
+        struct ext4_sb_info *sbi = EXT4_SB(sb);
+        struct inode *inode = sbi->s_buddy_cache;
+        int blocks_per_page;
+        int block;
+        int pnum;
+        struct page *page;
+        int err;
+
+        /* Add group based on group descriptor*/
+        err = ext4_mb_add_groupinfo(sb, group, desc);
+        if (err)
+                return err;
+
+        /*
+         * Cache pages containing dynamic mb_alloc datas (buddy and bitmap
+         * datas) are set not up to date so that they will be re-initilaized
+         * during the next call to ext4_mb_load_buddy
+         */
+
+        /* Set buddy page as not up to date */
+        blocks_per_page = PAGE_CACHE_SIZE / sb->s_blocksize;
+        block = group * 2;
+        pnum = block / blocks_per_page;
+        page = find_get_page(inode->i_mapping, pnum);
+        if (page != NULL) {
+                ClearPageUptodate(page);
+                page_cache_release(page);
+        }
+
+        /* Set bitmap page as not up to date */
+        block++;
+        pnum = block / blocks_per_page;
+        page = find_get_page(inode->i_mapping, pnum);
+        if (page != NULL) {
+                ClearPageUptodate(page);
+                page_cache_release(page);
+        }
+
+        return 0;
+}
+
+/*
+ * Update an existing group.
+ * This function is used for online resize
+ */
+void ext4_mb_update_group_info(struct ext4_group_info *grp, ext4_grpblk_t add)
+{
+        grp->bb_free += add;
+}
+
 static int ext4_mb_init_backend(struct super_block *sb)
 {
         ext4_group_t i;
-        int j, len, metalen;
+        int metalen;
         struct ext4_sb_info *sbi = EXT4_SB(sb);
-        int num_meta_group_infos =
-                (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) >>
-                        EXT4_DESC_PER_BLOCK_BITS(sb);
+        struct ext4_super_block *es = sbi->s_es;
+        int num_meta_group_infos;
+        int num_meta_group_infos_max;
+        int array_size;
         struct ext4_group_info **meta_group_info;
+        struct ext4_group_desc *desc;
+
+        /* This is the number of blocks used by GDT */
+        num_meta_group_infos = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) -
+                                1) >> EXT4_DESC_PER_BLOCK_BITS(sb);
+
+        /*
+         * This is the total number of blocks used by GDT including
+         * the number of reserved blocks for GDT.
+         * The s_group_info array is allocated with this value
+         * to allow a clean online resize without a complex
+         * manipulation of pointer.
+         * The drawback is the unused memory when no resize
+         * occurs but it's very low in terms of pages
+         * (see comments below)
+         * Need to handle this properly when META_BG resizing is allowed
+         */
+        num_meta_group_infos_max = num_meta_group_infos +
+                                le16_to_cpu(es->s_reserved_gdt_blocks);
 
+        /*
+         * array_size is the size of s_group_info array. We round it
+         * to the next power of two because this approximation is done
+         * internally by kmalloc so we can have some more memory
+         * for free here (e.g. may be used for META_BG resize).
+         */
+        array_size = 1;
+        while (array_size < sizeof(*sbi->s_group_info) *
+               num_meta_group_infos_max)
+                array_size = array_size << 1;
         /* An 8TB filesystem with 64-bit pointers requires a 4096 byte
          * kmalloc. A 128kb malloc should suffice for a 256TB filesystem.
          * So a two level scheme suffices for now. */
-        sbi->s_group_info = kmalloc(sizeof(*sbi->s_group_info) *
-                                    num_meta_group_infos, GFP_KERNEL);
+        sbi->s_group_info = kmalloc(array_size, GFP_KERNEL);
         if (sbi->s_group_info == NULL) {
                 printk(KERN_ERR "EXT4-fs: can't allocate buddy meta group\n");
                 return -ENOMEM;
@@ -2256,63 +2448,15 @@ static int ext4_mb_init_backend(struct super_block *sb)
                 sbi->s_group_info[i] = meta_group_info;
         }
 
-        /*
-         * calculate needed size. if change bb_counters size,
-         * don't forget about ext4_mb_generate_buddy()
-         */
-        len = sizeof(struct ext4_group_info);
-        len += sizeof(unsigned short) * (sb->s_blocksize_bits + 2);
         for (i = 0; i < sbi->s_groups_count; i++) {
-                struct ext4_group_desc *desc;
-
-                meta_group_info =
-                        sbi->s_group_info[i >> EXT4_DESC_PER_BLOCK_BITS(sb)];
-                j = i & (EXT4_DESC_PER_BLOCK(sb) - 1);
-
-                meta_group_info[j] = kzalloc(len, GFP_KERNEL);
-                if (meta_group_info[j] == NULL) {
-                        printk(KERN_ERR "EXT4-fs: can't allocate buddy mem\n");
-                        goto err_freebuddy;
-                }
                 desc = ext4_get_group_desc(sb, i, NULL);
                 if (desc == NULL) {
                         printk(KERN_ERR
                                 "EXT4-fs: can't read descriptor %lu\n", i);
-                        i++;
                         goto err_freebuddy;
                 }
-                memset(meta_group_info[j], 0, len);
-                set_bit(EXT4_GROUP_INFO_NEED_INIT_BIT,
-                        &(meta_group_info[j]->bb_state));
-
-                /*
-                 * initialize bb_free to be able to skip
-                 * empty groups without initialization
-                 */
-                if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
-                        meta_group_info[j]->bb_free =
-                                ext4_free_blocks_after_init(sb, i, desc);
-                } else {
-                        meta_group_info[j]->bb_free =
-                                le16_to_cpu(desc->bg_free_blocks_count);
-                }
-
-                INIT_LIST_HEAD(&meta_group_info[j]->bb_prealloc_list);
-
-#ifdef DOUBLE_CHECK
-                {
-                        struct buffer_head *bh;
-                        meta_group_info[j]->bb_bitmap =
-                                kmalloc(sb->s_blocksize, GFP_KERNEL);
-                        BUG_ON(meta_group_info[j]->bb_bitmap == NULL);
-                        bh = read_block_bitmap(sb, i);
-                        BUG_ON(bh == NULL);
-                        memcpy(meta_group_info[j]->bb_bitmap, bh->b_data,
-                                        sb->s_blocksize);
-                        put_bh(bh);
-                }
-#endif
-
+                if (ext4_mb_add_groupinfo(sb, i, desc) != 0)
+                        goto err_freebuddy;
         }
 
         return 0;
@@ -2336,6 +2480,7 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery)
         unsigned i;
         unsigned offset;
         unsigned max;
+        int ret;
 
         if (!test_opt(sb, MBALLOC))
                 return 0;
@@ -2370,12 +2515,12 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery)
         } while (i <= sb->s_blocksize_bits + 1);
 
         /* init file for buddy data */
-        i = ext4_mb_init_backend(sb);
-        if (i) {
+        ret = ext4_mb_init_backend(sb);
+        if (ret != 0) {
                 clear_opt(sbi->s_mount_opt, MBALLOC);
                 kfree(sbi->s_mb_offsets);
                 kfree(sbi->s_mb_maxs);
-                return i;
+                return ret;
         }
 
         spin_lock_init(&sbi->s_md_lock);
@@ -2548,8 +2693,7 @@ ext4_mb_free_committed_blocks(struct super_block *sb)
                 ext4_lock_group(sb, md->group);
                 for (i = 0; i < md->num; i++) {
                         mb_debug(" %u", md->blocks[i]);
-                        err = mb_free_blocks(NULL, &e4b, md->blocks[i], 1);
-                        BUG_ON(err != 0);
+                        mb_free_blocks(NULL, &e4b, md->blocks[i], 1);
                 }
                 mb_debug("\n");
                 ext4_unlock_group(sb, md->group);
@@ -2575,25 +2719,24 @@ ext4_mb_free_committed_blocks(struct super_block *sb)
 
 
 
-#define MB_PROC_VALUE_READ(name)                                \
-static int ext4_mb_read_##name(char *page, char **start,        \
-                off_t off, int count, int *eof, void *data)     \
+#define MB_PROC_FOPS(name)                                      \
+static int ext4_mb_##name##_proc_show(struct seq_file *m, void *v)      \
 {                                                               \
-        struct ext4_sb_info *sbi = data;                        \
-        int len;                                                \
-        *eof = 1;                                               \
-        if (off != 0)                                           \
-                return 0;                                       \
-        len = sprintf(page, "%ld\n", sbi->s_mb_##name);         \
-        *start = page;                                          \
-        return len;                                             \
-}
-
-#define MB_PROC_VALUE_WRITE(name)                               \
-static int ext4_mb_write_##name(struct file *file,              \
-                const char __user *buf, unsigned long cnt, void *data)  \
+        struct ext4_sb_info *sbi = m->private;                  \
+                                                                \
+        seq_printf(m, "%ld\n", sbi->s_mb_##name);               \
+        return 0;                                               \
+}                                                               \
+                                                                \
+static int ext4_mb_##name##_proc_open(struct inode *inode, struct file *file)\
+{                                                               \
+        return single_open(file, ext4_mb_##name##_proc_show, PDE(inode)->data);\
+}                                                               \
+                                                                \
+static ssize_t ext4_mb_##name##_proc_write(struct file *file,   \
+                const char __user *buf, size_t cnt, loff_t *ppos)       \
 {                                                               \
-        struct ext4_sb_info *sbi = data;                        \
+        struct ext4_sb_info *sbi = PDE(file->f_path.dentry->d_inode)->data;\
         char str[32];                                           \
         long value;                                             \
         if (cnt >= sizeof(str))                                 \
@@ -2605,31 +2748,32 @@ static int ext4_mb_write_##name(struct file *file,		\
                 return -ERANGE;                                 \
         sbi->s_mb_##name = value;                               \
         return cnt;                                             \
-}
+}                                                               \
+                                                                \
+static const struct file_operations ext4_mb_##name##_proc_fops = {      \
+        .owner          = THIS_MODULE,                          \
+        .open           = ext4_mb_##name##_proc_open,           \
+        .read           = seq_read,                             \
+        .llseek         = seq_lseek,                            \
+        .release        = single_release,                       \
+        .write          = ext4_mb_##name##_proc_write,          \
+};
 
-MB_PROC_VALUE_READ(stats);
-MB_PROC_VALUE_WRITE(stats);
-MB_PROC_VALUE_READ(max_to_scan);
-MB_PROC_VALUE_WRITE(max_to_scan);
-MB_PROC_VALUE_READ(min_to_scan);
-MB_PROC_VALUE_WRITE(min_to_scan);
-MB_PROC_VALUE_READ(order2_reqs);
-MB_PROC_VALUE_WRITE(order2_reqs);
-MB_PROC_VALUE_READ(stream_request);
-MB_PROC_VALUE_WRITE(stream_request);
-MB_PROC_VALUE_READ(group_prealloc);
-MB_PROC_VALUE_WRITE(group_prealloc);
+MB_PROC_FOPS(stats);
+MB_PROC_FOPS(max_to_scan);
+MB_PROC_FOPS(min_to_scan);
+MB_PROC_FOPS(order2_reqs);
+MB_PROC_FOPS(stream_request);
+MB_PROC_FOPS(group_prealloc);
 
 #define MB_PROC_HANDLER(name, var)                                      \
 do {                                                                    \
-        proc = create_proc_entry(name, mode, sbi->s_mb_proc);           \
+        proc = proc_create_data(name, mode, sbi->s_mb_proc,             \
+                                &ext4_mb_##var##_proc_fops, sbi);       \
         if (proc == NULL) {                                             \
                 printk(KERN_ERR "EXT4-fs: can't to create %s\n", name); \
                 goto err_out;                                           \
         }                                                               \
-        proc->data = sbi;                                               \
-        proc->read_proc  = ext4_mb_read_##var ;                         \
-        proc->write_proc = ext4_mb_write_##var;                         \
 } while (0)
 
 static int ext4_mb_init_per_dev_proc(struct super_block *sb)
@@ -2639,6 +2783,10 @@ static int ext4_mb_init_per_dev_proc(struct super_block *sb)
         struct proc_dir_entry *proc;
         char devname[64];
 
+        if (proc_root_ext4 == NULL) {
+                sbi->s_mb_proc = NULL;
+                return -EINVAL;
+        }
         bdevname(sb->s_bdev, devname);
         sbi->s_mb_proc = proc_mkdir(devname, proc_root_ext4);
 
@@ -2747,7 +2895,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 
 
         err = -EIO;
-        bitmap_bh = read_block_bitmap(sb, ac->ac_b_ex.fe_group);
+        bitmap_bh = ext4_read_block_bitmap(sb, ac->ac_b_ex.fe_group);
         if (!bitmap_bh)
                 goto out_err;
 
@@ -2816,7 +2964,23 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
         le16_add_cpu(&gdp->bg_free_blocks_count, -ac->ac_b_ex.fe_len);
         gdp->bg_checksum = ext4_group_desc_csum(sbi, ac->ac_b_ex.fe_group, gdp);
         spin_unlock(sb_bgl_lock(sbi, ac->ac_b_ex.fe_group));
-        percpu_counter_sub(&sbi->s_freeblocks_counter, ac->ac_b_ex.fe_len);
+
+        /*
+         * free blocks account has already be reduced/reserved
+         * at write_begin() time for delayed allocation
+         * do not double accounting
+         */
+        if (!(ac->ac_flags & EXT4_MB_DELALLOC_RESERVED))
+                percpu_counter_sub(&sbi->s_freeblocks_counter,
+                                        ac->ac_b_ex.fe_len);
+
+        if (sbi->s_log_groups_per_flex) {
+                ext4_group_t flex_group = ext4_flex_group(sbi,
+                                                          ac->ac_b_ex.fe_group);
+                spin_lock(sb_bgl_lock(sbi, flex_group));
+                sbi->s_flex_groups[flex_group].free_blocks -= ac->ac_b_ex.fe_len;
+                spin_unlock(sb_bgl_lock(sbi, flex_group));
+        }
 
         err = ext4_journal_dirty_metadata(handle, bitmap_bh);
         if (err)
@@ -3473,8 +3637,6 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
                 if (bit >= end)
                         break;
                 next = mb_find_next_bit(bitmap_bh->b_data, end, bit);
-                if (next > end)
-                        next = end;
                 start = group * EXT4_BLOCKS_PER_GROUP(sb) + bit +
                                 le32_to_cpu(sbi->s_es->s_first_data_block);
                 mb_debug("    free preallocated %u/%u in group %u\n",
@@ -3569,7 +3731,7 @@ ext4_mb_discard_group_preallocations(struct super_block *sb,
         if (list_empty(&grp->bb_prealloc_list))
                 return 0;
 
-        bitmap_bh = read_block_bitmap(sb, group);
+        bitmap_bh = ext4_read_block_bitmap(sb, group);
         if (bitmap_bh == NULL) {
                 /* error handling here */
                 ext4_mb_release_desc(&e4b);
@@ -3743,7 +3905,7 @@ repeat:
                 err = ext4_mb_load_buddy(sb, group, &e4b);
                 BUG_ON(err != 0); /* error handling here */
 
-                bitmap_bh = read_block_bitmap(sb, group);
+                bitmap_bh = ext4_read_block_bitmap(sb, group);
                 if (bitmap_bh == NULL) {
                         /* error handling here */
                         ext4_mb_release_desc(&e4b);
@@ -4011,10 +4173,21 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
         sbi = EXT4_SB(sb);
 
         if (!test_opt(sb, MBALLOC)) {
-                block = ext4_new_blocks_old(handle, ar->inode, ar->goal,
+                block = ext4_old_new_blocks(handle, ar->inode, ar->goal,
                                             &(ar->len), errp);
                 return block;
         }
+        if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag) {
+                /*
+                 * With delalloc we already reserved the blocks
+                 */
+                ar->len = ext4_has_free_blocks(sbi, ar->len);
+        }
+
+        if (ar->len == 0) {
+                *errp = -ENOSPC;
+                return 0;
+        }
 
         while (ar->len && DQUOT_ALLOC_BLOCK(ar->inode, ar->len)) {
                 ar->flags |= EXT4_MB_HINT_NOPREALLOC;
@@ -4026,10 +4199,14 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
         }
         inquota = ar->len;
 
+        if (EXT4_I(ar->inode)->i_delalloc_reserved_flag)
+                ar->flags |= EXT4_MB_DELALLOC_RESERVED;
+
         ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
         if (!ac) {
+                ar->len = 0;
                 *errp = -ENOMEM;
-                return 0;
+                goto out1;
         }
 
         ext4_mb_poll_new_transaction(sb, handle);
@@ -4037,12 +4214,11 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
         *errp = ext4_mb_initialize_context(ac, ar);
         if (*errp) {
                 ar->len = 0;
-                goto out;
+                goto out2;
         }
 
         ac->ac_op = EXT4_MB_HISTORY_PREALLOC;
         if (!ext4_mb_use_preallocated(ac)) {
-
                 ac->ac_op = EXT4_MB_HISTORY_ALLOC;
                 ext4_mb_normalize_request(ac, ar);
 repeat:
@@ -4085,11 +4261,12 @@ repeat:
 
         ext4_mb_release_context(ac);
 
-out:
+out2:
+        kmem_cache_free(ext4_ac_cachep, ac);
+out1:
         if (ar->len < inquota)
                 DQUOT_FREE_BLOCK(ar->inode, inquota - ar->len);
 
-        kmem_cache_free(ext4_ac_cachep, ac);
         return block;
 }
 static void ext4_mb_poll_new_transaction(struct super_block *sb,
@@ -4242,7 +4419,7 @@ do_more:
                 overflow = bit + count - EXT4_BLOCKS_PER_GROUP(sb);
                 count -= overflow;
         }
-        bitmap_bh = read_block_bitmap(sb, block_group);
+        bitmap_bh = ext4_read_block_bitmap(sb, block_group);
         if (!bitmap_bh)
                 goto error_return;
         gdp = ext4_get_group_desc(sb, block_group, &gd_bh);
@@ -4309,10 +4486,9 @@ do_more:
                 ext4_mb_free_metadata(handle, &e4b, block_group, bit, count);
         } else {
                 ext4_lock_group(sb, block_group);
-                err = mb_free_blocks(inode, &e4b, bit, count);
+                mb_free_blocks(inode, &e4b, bit, count);
                 ext4_mb_return_to_preallocation(inode, &e4b, block, count);
                 ext4_unlock_group(sb, block_group);
-                BUG_ON(err != 0);
         }
 
         spin_lock(sb_bgl_lock(sbi, block_group));
@@ -4321,6 +4497,13 @@ do_more:
         spin_unlock(sb_bgl_lock(sbi, block_group));
         percpu_counter_add(&sbi->s_freeblocks_counter, count);
 
+        if (sbi->s_log_groups_per_flex) {
+                ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
+                spin_lock(sb_bgl_lock(sbi, flex_group));
+                sbi->s_flex_groups[flex_group].free_blocks += count;
+                spin_unlock(sb_bgl_lock(sbi, flex_group));
+        }
+
         ext4_mb_release_desc(&e4b);
 
         *freed += count;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index ab16beaa830..387ad98350c 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -183,6 +183,16 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
                              struct inode *inode);
 
 /*
+ * p is at least 6 bytes before the end of page
+ */
+static inline struct ext4_dir_entry_2 *
+ext4_next_entry(struct ext4_dir_entry_2 *p)
+{
+        return (struct ext4_dir_entry_2 *)((char *)p +
+                ext4_rec_len_from_disk(p->rec_len));
+}
+
+/*
  * Future: use high four bits of block for coalesce-on-delete flags
  * Mask them off for now.
  */
@@ -231,13 +241,13 @@ static inline unsigned dx_root_limit (struct inode *dir, unsigned infosize)
 {
         unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(1) -
                 EXT4_DIR_REC_LEN(2) - infosize;
-        return 0? 20: entry_space / sizeof(struct dx_entry);
+        return entry_space / sizeof(struct dx_entry);
 }
 
 static inline unsigned dx_node_limit (struct inode *dir)
 {
         unsigned entry_space = dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(0);
-        return 0? 22: entry_space / sizeof(struct dx_entry);
+        return entry_space / sizeof(struct dx_entry);
 }
 
 /*
@@ -554,15 +564,6 @@ static int ext4_htree_next_block(struct inode *dir, __u32 hash,
 
 
 /*
- * p is at least 6 bytes before the end of page
- */
-static inline struct ext4_dir_entry_2 *ext4_next_entry(struct ext4_dir_entry_2 *p)
-{
-        return (struct ext4_dir_entry_2 *)((char *)p +
-                ext4_rec_len_from_disk(p->rec_len));
-}
-
-/*
  * This function fills a red-black tree with information from a
  * directory block.  It returns the number directory entries loaded
  * into the tree.  If there is an error it is returned in err.
@@ -993,19 +994,21 @@ static struct buffer_head * ext4_dx_find_entry(struct dentry *dentry,
                 de = (struct ext4_dir_entry_2 *) bh->b_data;
                 top = (struct ext4_dir_entry_2 *) ((char *) de + sb->s_blocksize -
                                        EXT4_DIR_REC_LEN(0));
-                for (; de < top; de = ext4_next_entry(de))
-                if (ext4_match (namelen, name, de)) {
-                        if (!ext4_check_dir_entry("ext4_find_entry",
-                                                  dir, de, bh,
-                                  (block<<EXT4_BLOCK_SIZE_BITS(sb))
-                                          +((char *)de - bh->b_data))) {
-                                brelse (bh);
+                for (; de < top; de = ext4_next_entry(de)) {
+                        int off = (block << EXT4_BLOCK_SIZE_BITS(sb))
+                                  + ((char *) de - bh->b_data);
+
+                        if (!ext4_check_dir_entry(__func__, dir, de, bh, off)) {
+                                brelse(bh);
                                 *err = ERR_BAD_DX_DIR;
                                 goto errout;
                         }
-                        *res_dir = de;
-                        dx_release (frames);
-                        return bh;
+
+                        if (ext4_match(namelen, name, de)) {
+                                *res_dir = de;
+                                dx_release(frames);
+                                return bh;
+                        }
                 }
                 brelse (bh);
                 /* Check to see if we should continue to search */
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 9ff7b1c0423..f000fbe2cd9 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -866,6 +866,15 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
         gdp->bg_checksum = ext4_group_desc_csum(sbi, input->group, gdp);
 
         /*
+         * We can allocate memory for mb_alloc based on the new group
+         * descriptor
+         */
+        if (test_opt(sb, MBALLOC)) {
+                err = ext4_mb_add_more_groupinfo(sb, input->group, gdp);
+                if (err)
+                        goto exit_journal;
+        }
+        /*
          * Make the new blocks and inodes valid next.  We do this before
          * increasing the group count so that once the group is enabled,
          * all of its blocks and inodes are already valid.
@@ -957,6 +966,8 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
         handle_t *handle;
         int err;
         unsigned long freed_blocks;
+        ext4_group_t group;
+        struct ext4_group_info *grp;
 
         /* We don't need to worry about locking wrt other resizers just
          * yet: we're going to revalidate es->s_blocks_count after
@@ -988,7 +999,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
         }
 
         /* Handle the remaining blocks in the last group only. */
-        ext4_get_group_no_and_offset(sb, o_blocks_count, NULL, &last);
+        ext4_get_group_no_and_offset(sb, o_blocks_count, &group, &last);
 
         if (last == 0) {
                 ext4_warning(sb, __func__,
@@ -1060,6 +1071,45 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
                    o_blocks_count + add);
         if ((err = ext4_journal_stop(handle)))
                 goto exit_put;
+
+        /*
+         * Mark mballoc pages as not up to date so that they will be updated
+         * next time they are loaded by ext4_mb_load_buddy.
+         */
+        if (test_opt(sb, MBALLOC)) {
+                struct ext4_sb_info *sbi = EXT4_SB(sb);
+                struct inode *inode = sbi->s_buddy_cache;
+                int blocks_per_page;
+                int block;
+                int pnum;
+                struct page *page;
+
+                /* Set buddy page as not up to date */
+                blocks_per_page = PAGE_CACHE_SIZE / sb->s_blocksize;
+                block = group * 2;
+                pnum = block / blocks_per_page;
+                page = find_get_page(inode->i_mapping, pnum);
+                if (page != NULL) {
+                        ClearPageUptodate(page);
+                        page_cache_release(page);
+                }
+
+                /* Set bitmap page as not up to date */
+                block++;
+                pnum = block / blocks_per_page;
+                page = find_get_page(inode->i_mapping, pnum);
+                if (page != NULL) {
+                        ClearPageUptodate(page);
+                        page_cache_release(page);
+                }
+
+                /* Get the info on the last group */
+                grp = ext4_get_group_info(sb, group);
+
+                /* Update free blocks in group info */
+                ext4_mb_update_group_info(grp, add);
+        }
+
         if (test_opt(sb, DEBUG))
                 printk(KERN_DEBUG "EXT4-fs: extended group to %llu blocks\n",
                        ext4_blocks_count(es));
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 02bf2434397..1cb371dcd60 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -506,6 +506,7 @@ static void ext4_put_super (struct super_block * sb)
         ext4_ext_release(sb);
         ext4_xattr_put_super(sb);
         jbd2_journal_destroy(sbi->s_journal);
+        sbi->s_journal = NULL;
         if (!(sb->s_flags & MS_RDONLY)) {
                 EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
                 es->s_state = cpu_to_le16(sbi->s_mount_state);
@@ -517,6 +518,7 @@ static void ext4_put_super (struct super_block * sb)
         for (i = 0; i < sbi->s_gdb_count; i++)
                 brelse(sbi->s_group_desc[i]);
         kfree(sbi->s_group_desc);
+        kfree(sbi->s_flex_groups);
         percpu_counter_destroy(&sbi->s_freeblocks_counter);
         percpu_counter_destroy(&sbi->s_freeinodes_counter);
         percpu_counter_destroy(&sbi->s_dirs_counter);
@@ -571,6 +573,12 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
         memset(&ei->i_cached_extent, 0, sizeof(struct ext4_ext_cache));
         INIT_LIST_HEAD(&ei->i_prealloc_list);
         spin_lock_init(&ei->i_prealloc_lock);
+        jbd2_journal_init_jbd_inode(&ei->jinode, &ei->vfs_inode);
+        ei->i_reserved_data_blocks = 0;
+        ei->i_reserved_meta_blocks = 0;
+        ei->i_allocated_meta_blocks = 0;
+        ei->i_delalloc_reserved_flag = 0;
+        spin_lock_init(&(ei->i_block_reservation_lock));
         return &ei->vfs_inode;
 }
 
@@ -635,6 +643,8 @@ static void ext4_clear_inode(struct inode *inode)
         EXT4_I(inode)->i_block_alloc_info = NULL;
         if (unlikely(rsv))
                 kfree(rsv);
+        jbd2_journal_release_jbd_inode(EXT4_SB(inode->i_sb)->s_journal,
+                                       &EXT4_I(inode)->jinode);
 }
 
 static inline void ext4_show_quota_options(struct seq_file *seq, struct super_block *sb)
@@ -671,7 +681,6 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
         unsigned long def_mount_opts;
         struct super_block *sb = vfs->mnt_sb;
         struct ext4_sb_info *sbi = EXT4_SB(sb);
-        journal_t *journal = sbi->s_journal;
         struct ext4_super_block *es = sbi->s_es;
 
         def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
@@ -747,6 +756,9 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
                 seq_puts(seq, ",nomballoc");
         if (test_opt(sb, I_VERSION))
                 seq_puts(seq, ",i_version");
+        if (!test_opt(sb, DELALLOC))
+                seq_puts(seq, ",nodelalloc");
+
 
         if (sbi->s_stripe)
                 seq_printf(seq, ",stripe=%lu", sbi->s_stripe);
@@ -894,7 +906,7 @@ enum {
         Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
         Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
         Opt_grpquota, Opt_extents, Opt_noextents, Opt_i_version,
-        Opt_mballoc, Opt_nomballoc, Opt_stripe,
+        Opt_mballoc, Opt_nomballoc, Opt_stripe, Opt_delalloc, Opt_nodelalloc,
 };
 
 static match_table_t tokens = {
@@ -953,6 +965,8 @@ static match_table_t tokens = {
         {Opt_nomballoc, "nomballoc"},
         {Opt_stripe, "stripe=%u"},
         {Opt_resize, "resize"},
+        {Opt_delalloc, "delalloc"},
+        {Opt_nodelalloc, "nodelalloc"},
         {Opt_err, NULL},
 };
 
@@ -990,6 +1004,7 @@ static int parse_options (char *options, struct super_block *sb,
         int qtype, qfmt;
         char *qname;
 #endif
+        ext4_fsblk_t last_block;
 
         if (!options)
                 return 1;
@@ -1309,15 +1324,39 @@ set_qf_format:
                         clear_opt(sbi->s_mount_opt, NOBH);
                         break;
                 case Opt_extents:
+                        if (!EXT4_HAS_INCOMPAT_FEATURE(sb,
+                                        EXT4_FEATURE_INCOMPAT_EXTENTS)) {
+                                ext4_warning(sb, __func__,
+                                        "extents feature not enabled "
+                                        "on this filesystem, use tune2fs\n");
+                                return 0;
+                        }
                         set_opt (sbi->s_mount_opt, EXTENTS);
                         break;
                 case Opt_noextents:
+                        /*
+                         * When e2fsprogs support resizing an already existing
+                         * ext3 file system to greater than 2**32 we need to
+                         * add support to block allocator to handle growing
+                         * already existing block  mapped inode so that blocks
+                         * allocated for them fall within 2**32
+                         */
+                        last_block = ext4_blocks_count(sbi->s_es) - 1;
+                        if (last_block  > 0xffffffffULL) {
+                                printk(KERN_ERR "EXT4-fs: Filesystem too "
+                                                "large to mount with "
+                                                "-o noextents options\n");
+                                return 0;
+                        }
                         clear_opt (sbi->s_mount_opt, EXTENTS);
                         break;
                 case Opt_i_version:
                         set_opt(sbi->s_mount_opt, I_VERSION);
                         sb->s_flags |= MS_I_VERSION;
                         break;
+                case Opt_nodelalloc:
+                        clear_opt(sbi->s_mount_opt, DELALLOC);
+                        break;
                 case Opt_mballoc:
                         set_opt(sbi->s_mount_opt, MBALLOC);
                         break;
@@ -1331,6 +1370,9 @@ set_qf_format:
                                 return 0;
                         sbi->s_stripe = option;
                         break;
+                case Opt_delalloc:
+                        set_opt(sbi->s_mount_opt, DELALLOC);
+                        break;
                 default:
                         printk (KERN_ERR
                                 "EXT4-fs: Unrecognized mount option \"%s\" "
@@ -1443,6 +1485,54 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
         return res;
 }
 
+static int ext4_fill_flex_info(struct super_block *sb)
+{
+        struct ext4_sb_info *sbi = EXT4_SB(sb);
+        struct ext4_group_desc *gdp = NULL;
+        struct buffer_head *bh;
+        ext4_group_t flex_group_count;
+        ext4_group_t flex_group;
+        int groups_per_flex = 0;
+        __u64 block_bitmap = 0;
+        int i;
+
+        if (!sbi->s_es->s_log_groups_per_flex) {
+                sbi->s_log_groups_per_flex = 0;
+                return 1;
+        }
+
+        sbi->s_log_groups_per_flex = sbi->s_es->s_log_groups_per_flex;
+        groups_per_flex = 1 << sbi->s_log_groups_per_flex;
+
+        flex_group_count = (sbi->s_groups_count + groups_per_flex - 1) /
+                groups_per_flex;
+        sbi->s_flex_groups = kmalloc(flex_group_count *
+                                     sizeof(struct flex_groups), GFP_KERNEL);
+        if (sbi->s_flex_groups == NULL) {
+                printk(KERN_ERR "EXT4-fs: not enough memory\n");
+                goto failed;
+        }
+        memset(sbi->s_flex_groups, 0, flex_group_count *
+               sizeof(struct flex_groups));
+
+        gdp = ext4_get_group_desc(sb, 1, &bh);
+        block_bitmap = ext4_block_bitmap(sb, gdp) - 1;
+
+        for (i = 0; i < sbi->s_groups_count; i++) {
+                gdp = ext4_get_group_desc(sb, i, &bh);
+
+                flex_group = ext4_flex_group(sbi, i);
+                sbi->s_flex_groups[flex_group].free_inodes +=
+                        le16_to_cpu(gdp->bg_free_inodes_count);
+                sbi->s_flex_groups[flex_group].free_blocks +=
+                        le16_to_cpu(gdp->bg_free_blocks_count);
+        }
+
+        return 1;
+failed:
+        return 0;
+}
+
 __le16 ext4_group_desc_csum(struct ext4_sb_info *sbi, __u32 block_group,
                             struct ext4_group_desc *gdp)
 {
@@ -1810,8 +1900,8 @@ static unsigned long ext4_get_stripe_size(struct ext4_sb_info *sbi)
 }
 
 static int ext4_fill_super (struct super_block *sb, void *data, int silent)
-                                __releases(kernel_sem)
-                                __acquires(kernel_sem)
+                                __releases(kernel_lock)
+                                __acquires(kernel_lock)
 
 {
         struct buffer_head * bh;
@@ -1851,11 +1941,6 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
                 goto out_fail;
         }
 
-        if (!sb_set_blocksize(sb, blocksize)) {
-                printk(KERN_ERR "EXT4-fs: bad blocksize %d.\n", blocksize);
-                goto out_fail;
-        }
-
         /*
          * The ext4 superblock will not be buffer aligned for other than 1kB
          * block sizes.  We need to calculate the offset from buffer start.
@@ -1919,15 +2004,28 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 
         /*
          * turn on extents feature by default in ext4 filesystem
-         * User -o noextents to turn it off
+         * only if feature flag already set by mkfs or tune2fs.
+         * Use -o noextents to turn it off
          */
-        set_opt(sbi->s_mount_opt, EXTENTS);
+        if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_EXTENTS))
+                set_opt(sbi->s_mount_opt, EXTENTS);
+        else
+                ext4_warning(sb, __func__,
+                        "extents feature not enabled on this filesystem, "
+                        "use tune2fs.\n");
         /*
-         * turn on mballoc feature by default in ext4 filesystem
-         * User -o nomballoc to turn it off
+         * turn on mballoc code by default in ext4 filesystem
+         * Use -o nomballoc to turn it off
          */
         set_opt(sbi->s_mount_opt, MBALLOC);
 
+        /*
+         * enable delayed allocation by default
+         * Use -o nodelalloc to turn it off
+         */
+        set_opt(sbi->s_mount_opt, DELALLOC);
+
+
         if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum,
                             NULL, 0))
                 goto failed_mount;
@@ -2138,6 +2236,14 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
                 printk(KERN_ERR "EXT4-fs: group descriptors corrupted!\n");
                 goto failed_mount2;
         }
+        if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG))
+                if (!ext4_fill_flex_info(sb)) {
+                        printk(KERN_ERR
+                               "EXT4-fs: unable to initialize "
+                               "flex_bg meta info!\n");
+                        goto failed_mount2;
+                }
+
         sbi->s_gdb_count = db_count;
         get_random_bytes(&sbi->s_next_generation, sizeof(u32));
         spin_lock_init(&sbi->s_next_gen_lock);
@@ -2358,6 +2464,13 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
                 test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA ? "ordered":
                 "writeback");
 
+        if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
+                printk(KERN_WARNING "EXT4-fs: Ignoring delalloc option - "
+                                "requested data journaling mode\n");
+                clear_opt(sbi->s_mount_opt, DELALLOC);
+        } else if (test_opt(sb, DELALLOC))
+                printk(KERN_INFO "EXT4-fs: delayed allocation enabled\n");
+
         ext4_ext_init(sb);
         ext4_mb_init(sb, needs_recovery);
 
@@ -2372,6 +2485,7 @@ cantfind_ext4:
 
 failed_mount4:
         jbd2_journal_destroy(sbi->s_journal);
+        sbi->s_journal = NULL;
 failed_mount3:
         percpu_counter_destroy(&sbi->s_freeblocks_counter);
         percpu_counter_destroy(&sbi->s_freeinodes_counter);
@@ -3325,7 +3439,7 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
                         err = ext4_journal_dirty_metadata(handle, bh);
                 else {
                         /* Always do at least ordered writes for quotas */
-                        err = ext4_journal_dirty_data(handle, bh);
+                        err = ext4_jbd2_file_inode(handle, inode);
                         mark_buffer_dirty(bh);
                 }
                 brelse(bh);
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index ff08633f398..93c5fdcdad2 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -810,7 +810,7 @@ inserted:
                         /* We need to allocate a new block */
                         ext4_fsblk_t goal = ext4_group_first_block_no(sb,
                                                 EXT4_I(inode)->i_block_group);
-                        ext4_fsblk_t block = ext4_new_block(handle, inode,
+                        ext4_fsblk_t block = ext4_new_meta_block(handle, inode,
                                                         goal, &error);
                         if (error)
                                 goto cleanup;
diff --git a/fs/ext4/xattr_trusted.c b/fs/ext4/xattr_trusted.c
index fff33382cad..ac1a52cf2a3 100644
--- a/fs/ext4/xattr_trusted.c
+++ b/fs/ext4/xattr_trusted.c
@@ -13,13 +13,11 @@
 #include "ext4.h"
 #include "xattr.h"
 
-#define XATTR_TRUSTED_PREFIX "trusted."
-
 static size_t
 ext4_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
                         const char *name, size_t name_len)
 {
-        const size_t prefix_len = sizeof(XATTR_TRUSTED_PREFIX)-1;
+        const size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
         const size_t total_len = prefix_len + name_len + 1;
 
         if (!capable(CAP_SYS_ADMIN))
diff --git a/fs/ext4/xattr_user.c b/fs/ext4/xattr_user.c
index 67be723fcc4..d91aa61b42a 100644
--- a/fs/ext4/xattr_user.c
+++ b/fs/ext4/xattr_user.c
@@ -12,13 +12,11 @@
 #include "ext4.h"
 #include "xattr.h"
 
-#define XATTR_USER_PREFIX "user."
-
 static size_t
 ext4_xattr_user_list(struct inode *inode, char *list, size_t list_size,
                      const char *name, size_t name_len)
 {
-        const size_t prefix_len = sizeof(XATTR_USER_PREFIX)-1;
+        const size_t prefix_len = XATTR_USER_PREFIX_LEN;
         const size_t total_len = prefix_len + name_len + 1;
 
         if (!test_opt(inode->i_sb, XATTR_USER))
diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index 7f7947e3dfb..ab2f57e3fb8 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -14,23 +14,11 @@ config GFS2_FS
           GFS is perfect consistency -- changes made to the filesystem on one
           machine show up immediately on all other machines in the cluster.
 
-          To use the GFS2 filesystem, you will need to enable one or more of
-          the below locking modules. Documentation and utilities for GFS2 can
+          To use the GFS2 filesystem in a cluster, you will need to enable
+          the locking module below. Documentation and utilities for GFS2 can
           be found here: http://sources.redhat.com/cluster
 
-config GFS2_FS_LOCKING_NOLOCK
-        tristate "GFS2 \"nolock\" locking module"
-        depends on GFS2_FS
-        help
-          Single node locking module for GFS2.
-
-          Use this module if you want to use GFS2 on a single node without
-          its clustering features. You can still take advantage of the
-          large file support, and upgrade to running a full cluster later on
-          if required.
-
-          If you will only be using GFS2 in cluster mode, you do not need this
-          module.
+          The "nolock" lock module is now built in to GFS2 by default.
 
 config GFS2_FS_LOCKING_DLM
         tristate "GFS2 DLM locking module"
diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile
index e2350df02a0..ec65851ec80 100644
--- a/fs/gfs2/Makefile
+++ b/fs/gfs2/Makefile
@@ -5,6 +5,5 @@ gfs2-y := acl.o bmap.o daemon.o dir.o eaops.o eattr.o glock.o \
         ops_fstype.o ops_inode.o ops_super.o quota.o \
         recovery.o rgrp.o super.o sys.o trans.o util.o
 
-obj-$(CONFIG_GFS2_FS_LOCKING_NOLOCK) += locking/nolock/
 obj-$(CONFIG_GFS2_FS_LOCKING_DLM) += locking/dlm/
 
diff --git a/fs/gfs2/gfs2.h b/fs/gfs2/gfs2.h
index 3bb11c0f8b5..ef606e3a5cf 100644
--- a/fs/gfs2/gfs2.h
+++ b/fs/gfs2/gfs2.h
@@ -16,11 +16,6 @@ enum {
 };
 
 enum {
-        NO_WAIT = 0,
-        WAIT = 1,
-};
-
-enum {
         NO_FORCE = 0,
         FORCE = 1,
 };
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index d636b3e80f5..13391e54661 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -45,21 +45,19 @@ struct gfs2_gl_hash_bucket {
         struct hlist_head hb_list;
 };
 
-struct glock_iter {
-        int hash;                     /* hash bucket index         */
-        struct gfs2_sbd *sdp;         /* incore superblock         */
-        struct gfs2_glock *gl;        /* current glock struct      */
-        struct seq_file *seq;         /* sequence file for debugfs */
-        char string[512];             /* scratch space             */
+struct gfs2_glock_iter {
+        int hash;                       /* hash bucket index         */
+        struct gfs2_sbd *sdp;           /* incore superblock         */
+        struct gfs2_glock *gl;          /* current glock struct      */
+        char string[512];               /* scratch space             */
 };
 
 typedef void (*glock_examiner) (struct gfs2_glock * gl);
 
 static int gfs2_dump_lockstate(struct gfs2_sbd *sdp);
-static int dump_glock(struct glock_iter *gi, struct gfs2_glock *gl);
-static void gfs2_glock_xmote_th(struct gfs2_glock *gl, struct gfs2_holder *gh);
-static void gfs2_glock_drop_th(struct gfs2_glock *gl);
-static void run_queue(struct gfs2_glock *gl);
+static int __dump_glock(struct seq_file *seq, const struct gfs2_glock *gl);
+#define GLOCK_BUG_ON(gl,x) do { if (unlikely(x)) { __dump_glock(NULL, gl); BUG(); } } while(0)
+static void do_xmote(struct gfs2_glock *gl, struct gfs2_holder *gh, unsigned int target);
 
 static DECLARE_RWSEM(gfs2_umount_flush_sem);
 static struct dentry *gfs2_root;
@@ -123,33 +121,6 @@ static inline rwlock_t *gl_lock_addr(unsigned int x)
 #endif
 
 /**
- * relaxed_state_ok - is a requested lock compatible with the current lock mode?
- * @actual: the current state of the lock
- * @requested: the lock state that was requested by the caller
- * @flags: the modifier flags passed in by the caller
- *
- * Returns: 1 if the locks are compatible, 0 otherwise
- */
-
-static inline int relaxed_state_ok(unsigned int actual, unsigned requested,
-                                   int flags)
-{
-        if (actual == requested)
-                return 1;
-
-        if (flags & GL_EXACT)
-                return 0;
-
-        if (actual == LM_ST_EXCLUSIVE && requested == LM_ST_SHARED)
-                return 1;
-
-        if (actual != LM_ST_UNLOCKED && (flags & LM_FLAG_ANY))
-                return 1;
-
-        return 0;
-}
-
-/**
  * gl_hash() - Turn glock number into hash bucket number
  * @lock: The glock number
  *
@@ -182,7 +153,7 @@ static void glock_free(struct gfs2_glock *gl)
         struct gfs2_sbd *sdp = gl->gl_sbd;
         struct inode *aspace = gl->gl_aspace;
 
-        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+        if (sdp->sd_lockstruct.ls_ops->lm_put_lock)
                 sdp->sd_lockstruct.ls_ops->lm_put_lock(gl->gl_lock);
 
         if (aspace)
@@ -211,17 +182,14 @@ static void gfs2_glock_hold(struct gfs2_glock *gl)
 int gfs2_glock_put(struct gfs2_glock *gl)
 {
         int rv = 0;
-        struct gfs2_sbd *sdp = gl->gl_sbd;
 
         write_lock(gl_lock_addr(gl->gl_hash));
         if (atomic_dec_and_test(&gl->gl_ref)) {
                 hlist_del(&gl->gl_list);
                 write_unlock(gl_lock_addr(gl->gl_hash));
-                gfs2_assert(sdp, gl->gl_state == LM_ST_UNLOCKED);
-                gfs2_assert(sdp, list_empty(&gl->gl_reclaim));
-                gfs2_assert(sdp, list_empty(&gl->gl_holders));
-                gfs2_assert(sdp, list_empty(&gl->gl_waiters1));
-                gfs2_assert(sdp, list_empty(&gl->gl_waiters3));
+                GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_UNLOCKED);
+                GLOCK_BUG_ON(gl, !list_empty(&gl->gl_reclaim));
+                GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
                 glock_free(gl);
                 rv = 1;
                 goto out;
@@ -281,22 +249,401 @@ static struct gfs2_glock *gfs2_glock_find(const struct gfs2_sbd *sdp,
         return gl;
 }
 
+/**
+ * may_grant - check if its ok to grant a new lock
+ * @gl: The glock
+ * @gh: The lock request which we wish to grant
+ *
+ * Returns: true if its ok to grant the lock
+ */
+
+static inline int may_grant(const struct gfs2_glock *gl, const struct gfs2_holder *gh)
+{
+        const struct gfs2_holder *gh_head = list_entry(gl->gl_holders.next, const struct gfs2_holder, gh_list);
+        if ((gh->gh_state == LM_ST_EXCLUSIVE ||
+             gh_head->gh_state == LM_ST_EXCLUSIVE) && gh != gh_head)
+                return 0;
+        if (gl->gl_state == gh->gh_state)
+                return 1;
+        if (gh->gh_flags & GL_EXACT)
+                return 0;
+        if (gl->gl_state == LM_ST_EXCLUSIVE) {
+                if (gh->gh_state == LM_ST_SHARED && gh_head->gh_state == LM_ST_SHARED)
+                        return 1;
+                if (gh->gh_state == LM_ST_DEFERRED && gh_head->gh_state == LM_ST_DEFERRED)
+                        return 1;
+        }
+        if (gl->gl_state != LM_ST_UNLOCKED && (gh->gh_flags & LM_FLAG_ANY))
+                return 1;
+        return 0;
+}
+
+static void gfs2_holder_wake(struct gfs2_holder *gh)
+{
+        clear_bit(HIF_WAIT, &gh->gh_iflags);
+        smp_mb__after_clear_bit();
+        wake_up_bit(&gh->gh_iflags, HIF_WAIT);
+}
+
+/**
+ * do_promote - promote as many requests as possible on the current queue
+ * @gl: The glock
+ * 
+ * Returns: true if there is a blocked holder at the head of the list
+ */
+
+static int do_promote(struct gfs2_glock *gl)
+{
+        const struct gfs2_glock_operations *glops = gl->gl_ops;
+        struct gfs2_holder *gh, *tmp;
+        int ret;
+
+restart:
+        list_for_each_entry_safe(gh, tmp, &gl->gl_holders, gh_list) {
+                if (test_bit(HIF_HOLDER, &gh->gh_iflags))
+                        continue;
+                if (may_grant(gl, gh)) {
+                        if (gh->gh_list.prev == &gl->gl_holders &&
+                            glops->go_lock) {
+                                spin_unlock(&gl->gl_spin);
+                                /* FIXME: eliminate this eventually */
+                                ret = glops->go_lock(gh);
+                                spin_lock(&gl->gl_spin);
+                                if (ret) {
+                                        gh->gh_error = ret;
+                                        list_del_init(&gh->gh_list);
+                                        gfs2_holder_wake(gh);
+                                        goto restart;
+                                }
+                                set_bit(HIF_HOLDER, &gh->gh_iflags);
+                                gfs2_holder_wake(gh);
+                                goto restart;
+                        }
+                        set_bit(HIF_HOLDER, &gh->gh_iflags);
+                        gfs2_holder_wake(gh);
+                        continue;
+                }
+                if (gh->gh_list.prev == &gl->gl_holders)
+                        return 1;
+                break;
+        }
+        return 0;
+}
+
+/**
+ * do_error - Something unexpected has happened during a lock request
+ *
+ */
+
+static inline void do_error(struct gfs2_glock *gl, const int ret)
+{
+        struct gfs2_holder *gh, *tmp;
+
+        list_for_each_entry_safe(gh, tmp, &gl->gl_holders, gh_list) {
+                if (test_bit(HIF_HOLDER, &gh->gh_iflags))
+                        continue;
+                if (ret & LM_OUT_ERROR)
+                        gh->gh_error = -EIO;
+                else if (gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB))
+                        gh->gh_error = GLR_TRYFAILED;
+                else
+                        continue;
+                list_del_init(&gh->gh_list);
+                gfs2_holder_wake(gh);
+        }
+}
+
+/**
+ * find_first_waiter - find the first gh that's waiting for the glock
+ * @gl: the glock
+ */
+
+static inline struct gfs2_holder *find_first_waiter(const struct gfs2_glock *gl)
+{
+        struct gfs2_holder *gh;
+
+        list_for_each_entry(gh, &gl->gl_holders, gh_list) {
+                if (!test_bit(HIF_HOLDER, &gh->gh_iflags))
+                        return gh;
+        }
+        return NULL;
+}
+
+/**
+ * state_change - record that the glock is now in a different state
+ * @gl: the glock
+ * @new_state the new state
+ *
+ */
+
+static void state_change(struct gfs2_glock *gl, unsigned int new_state)
+{
+        int held1, held2;
+
+        held1 = (gl->gl_state != LM_ST_UNLOCKED);
+        held2 = (new_state != LM_ST_UNLOCKED);
+
+        if (held1 != held2) {
+                if (held2)
+                        gfs2_glock_hold(gl);
+                else
+                        gfs2_glock_put(gl);
+        }
+
+        gl->gl_state = new_state;
+        gl->gl_tchange = jiffies;
+}
+
+static void gfs2_demote_wake(struct gfs2_glock *gl)
+{
+        gl->gl_demote_state = LM_ST_EXCLUSIVE;
+        clear_bit(GLF_DEMOTE, &gl->gl_flags);
+        smp_mb__after_clear_bit();
+        wake_up_bit(&gl->gl_flags, GLF_DEMOTE);
+}
+
+/**
+ * finish_xmote - The DLM has replied to one of our lock requests
+ * @gl: The glock
+ * @ret: The status from the DLM
+ *
+ */
+
+static void finish_xmote(struct gfs2_glock *gl, unsigned int ret)
+{
+        const struct gfs2_glock_operations *glops = gl->gl_ops;
+        struct gfs2_holder *gh;
+        unsigned state = ret & LM_OUT_ST_MASK;
+
+        spin_lock(&gl->gl_spin);
+        state_change(gl, state);
+        gh = find_first_waiter(gl);
+
+        /* Demote to UN request arrived during demote to SH or DF */
+        if (test_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags) &&
+            state != LM_ST_UNLOCKED && gl->gl_demote_state == LM_ST_UNLOCKED)
+                gl->gl_target = LM_ST_UNLOCKED;
+
+        /* Check for state != intended state */
+        if (unlikely(state != gl->gl_target)) {
+                if (gh && !test_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags)) {
+                        /* move to back of queue and try next entry */
+                        if (ret & LM_OUT_CANCELED) {
+                                if ((gh->gh_flags & LM_FLAG_PRIORITY) == 0)
+                                        list_move_tail(&gh->gh_list, &gl->gl_holders);
+                                gh = find_first_waiter(gl);
+                                gl->gl_target = gh->gh_state;
+                                goto retry;
+                        }
+                        /* Some error or failed "try lock" - report it */
+                        if ((ret & LM_OUT_ERROR) ||
+                            (gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB))) {
+                                gl->gl_target = gl->gl_state;
+                                do_error(gl, ret);
+                                goto out;
+                        }
+                }
+                switch(state) {
+                /* Unlocked due to conversion deadlock, try again */
+                case LM_ST_UNLOCKED:
+retry:
+                        do_xmote(gl, gh, gl->gl_target);
+                        break;
+                /* Conversion fails, unlock and try again */
+                case LM_ST_SHARED:
+                case LM_ST_DEFERRED:
+                        do_xmote(gl, gh, LM_ST_UNLOCKED);
+                        break;
+                default: /* Everything else */
+                        printk(KERN_ERR "GFS2: wanted %u got %u\n", gl->gl_target, state);
+                        GLOCK_BUG_ON(gl, 1);
+                }
+                spin_unlock(&gl->gl_spin);
+                gfs2_glock_put(gl);
+                return;
+        }
+
+        /* Fast path - we got what we asked for */
+        if (test_and_clear_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags))
+                gfs2_demote_wake(gl);
+        if (state != LM_ST_UNLOCKED) {
+                if (glops->go_xmote_bh) {
+                        int rv;
+                        spin_unlock(&gl->gl_spin);
+                        rv = glops->go_xmote_bh(gl, gh);
+                        if (rv == -EAGAIN)
+                                return;
+                        spin_lock(&gl->gl_spin);
+                        if (rv) {
+                                do_error(gl, rv);
+                                goto out;
+                        }
+                }
+                do_promote(gl);
+        }
+out:
+        clear_bit(GLF_LOCK, &gl->gl_flags);
+        spin_unlock(&gl->gl_spin);
+        gfs2_glock_put(gl);
+}
+
+static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
+                                 unsigned int cur_state, unsigned int req_state,
+                                 unsigned int flags)
+{
+        int ret = LM_OUT_ERROR;
+
+        if (!sdp->sd_lockstruct.ls_ops->lm_lock)
+                return req_state == LM_ST_UNLOCKED ? 0 : req_state;
+
+        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock, cur_state,
+                                                         req_state, flags);
+        return ret;
+}
+
+/**
+ * do_xmote - Calls the DLM to change the state of a lock
+ * @gl: The lock state
+ * @gh: The holder (only for promotes)
+ * @target: The target lock state
+ *
+ */
+
+static void do_xmote(struct gfs2_glock *gl, struct gfs2_holder *gh, unsigned int target)
+{
+        const struct gfs2_glock_operations *glops = gl->gl_ops;
+        struct gfs2_sbd *sdp = gl->gl_sbd;
+        unsigned int lck_flags = gh ? gh->gh_flags : 0;
+        int ret;
+
+        lck_flags &= (LM_FLAG_TRY | LM_FLAG_TRY_1CB | LM_FLAG_NOEXP |
+                      LM_FLAG_PRIORITY);
+        BUG_ON(gl->gl_state == target);
+        BUG_ON(gl->gl_state == gl->gl_target);
+        if ((target == LM_ST_UNLOCKED || target == LM_ST_DEFERRED) &&
+            glops->go_inval) {
+                set_bit(GLF_INVALIDATE_IN_PROGRESS, &gl->gl_flags);
+                do_error(gl, 0); /* Fail queued try locks */
+        }
+        spin_unlock(&gl->gl_spin);
+        if (glops->go_xmote_th)
+                glops->go_xmote_th(gl);
+        if (test_bit(GLF_INVALIDATE_IN_PROGRESS, &gl->gl_flags))
+                glops->go_inval(gl, target == LM_ST_DEFERRED ? 0 : DIO_METADATA);
+        clear_bit(GLF_INVALIDATE_IN_PROGRESS, &gl->gl_flags);
+
+        gfs2_glock_hold(gl);
+        if (target != LM_ST_UNLOCKED && (gl->gl_state == LM_ST_SHARED ||
+            gl->gl_state == LM_ST_DEFERRED) &&
+            !(lck_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)))
+                lck_flags |= LM_FLAG_TRY_1CB;
+        ret = gfs2_lm_lock(sdp, gl->gl_lock, gl->gl_state, target, lck_flags);
+
+        if (!(ret & LM_OUT_ASYNC)) {
+                finish_xmote(gl, ret);
+                gfs2_glock_hold(gl);
+                if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
+                        gfs2_glock_put(gl);
+        } else {
+                GLOCK_BUG_ON(gl, ret != LM_OUT_ASYNC);
+        }
+        spin_lock(&gl->gl_spin);
+}
+
+/**
+ * find_first_holder - find the first "holder" gh
+ * @gl: the glock
+ */
+
+static inline struct gfs2_holder *find_first_holder(const struct gfs2_glock *gl)
+{
+        struct gfs2_holder *gh;
+
+        if (!list_empty(&gl->gl_holders)) {
+                gh = list_entry(gl->gl_holders.next, struct gfs2_holder, gh_list);
+                if (test_bit(HIF_HOLDER, &gh->gh_iflags))
+                        return gh;
+        }
+        return NULL;
+}
+
+/**
+ * run_queue - do all outstanding tasks related to a glock
+ * @gl: The glock in question
+ * @nonblock: True if we must not block in run_queue
+ *
+ */
+
+static void run_queue(struct gfs2_glock *gl, const int nonblock)
+{
+        struct gfs2_holder *gh = NULL;
+
+        if (test_and_set_bit(GLF_LOCK, &gl->gl_flags))
+                return;
+
+        GLOCK_BUG_ON(gl, test_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags));
+
+        if (test_bit(GLF_DEMOTE, &gl->gl_flags) &&
+            gl->gl_demote_state != gl->gl_state) {
+                if (find_first_holder(gl))
+                        goto out;
+                if (nonblock)
+                        goto out_sched;
+                set_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags);
+                GLOCK_BUG_ON(gl, gl->gl_demote_state == LM_ST_EXCLUSIVE);
+                gl->gl_target = gl->gl_demote_state;
+        } else {
+                if (test_bit(GLF_DEMOTE, &gl->gl_flags))
+                        gfs2_demote_wake(gl);
+                if (do_promote(gl) == 0)
+                        goto out;
+                gh = find_first_waiter(gl);
+                gl->gl_target = gh->gh_state;
+                if (!(gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)))
+                        do_error(gl, 0); /* Fail queued try locks */
+        }
+        do_xmote(gl, gh, gl->gl_target);
+        return;
+
+out_sched:
+        gfs2_glock_hold(gl);
+        if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
+                gfs2_glock_put(gl);
+out:
+        clear_bit(GLF_LOCK, &gl->gl_flags);
+}
+
 static void glock_work_func(struct work_struct *work)
 {
+        unsigned long delay = 0;
         struct gfs2_glock *gl = container_of(work, struct gfs2_glock, gl_work.work);
 
+        if (test_and_clear_bit(GLF_REPLY_PENDING, &gl->gl_flags))
+                finish_xmote(gl, gl->gl_reply);
         spin_lock(&gl->gl_spin);
-        if (test_and_clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags))
-                set_bit(GLF_DEMOTE, &gl->gl_flags);
-        run_queue(gl);
+        if (test_and_clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
+            gl->gl_state != LM_ST_UNLOCKED &&
+            gl->gl_demote_state != LM_ST_EXCLUSIVE) {
+                unsigned long holdtime, now = jiffies;
+                holdtime = gl->gl_tchange + gl->gl_ops->go_min_hold_time;
+                if (time_before(now, holdtime))
+                        delay = holdtime - now;
+                set_bit(delay ? GLF_PENDING_DEMOTE : GLF_DEMOTE, &gl->gl_flags);
+        }
+        run_queue(gl, 0);
         spin_unlock(&gl->gl_spin);
-        gfs2_glock_put(gl);
+        if (!delay ||
+            queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
+                gfs2_glock_put(gl);
 }
 
 static int gfs2_lm_get_lock(struct gfs2_sbd *sdp, struct lm_lockname *name,
                      void **lockp)
 {
         int error = -EIO;
+        if (!sdp->sd_lockstruct.ls_ops->lm_get_lock)
+                return 0;
         if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
                 error = sdp->sd_lockstruct.ls_ops->lm_get_lock(
                                 sdp->sd_lockstruct.ls_lockspace, name, lockp);
@@ -342,12 +689,10 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
         gl->gl_name = name;
         atomic_set(&gl->gl_ref, 1);
         gl->gl_state = LM_ST_UNLOCKED;
+        gl->gl_target = LM_ST_UNLOCKED;
         gl->gl_demote_state = LM_ST_EXCLUSIVE;
         gl->gl_hash = hash;
-        gl->gl_owner_pid = NULL;
-        gl->gl_ip = 0;
         gl->gl_ops = glops;
-        gl->gl_req_gh = NULL;
         gl->gl_stamp = jiffies;
         gl->gl_tchange = jiffies;
         gl->gl_object = NULL;
@@ -447,13 +792,6 @@ void gfs2_holder_uninit(struct gfs2_holder *gh)
         gh->gh_ip = 0;
 }
 
-static void gfs2_holder_wake(struct gfs2_holder *gh)
-{
-        clear_bit(HIF_WAIT, &gh->gh_iflags);
-        smp_mb__after_clear_bit();
-        wake_up_bit(&gh->gh_iflags, HIF_WAIT);
-}
-
 static int just_schedule(void *word)
 {
         schedule();
@@ -466,14 +804,6 @@ static void wait_on_holder(struct gfs2_holder *gh)
         wait_on_bit(&gh->gh_iflags, HIF_WAIT, just_schedule, TASK_UNINTERRUPTIBLE);
 }
 
-static void gfs2_demote_wake(struct gfs2_glock *gl)
-{
-        gl->gl_demote_state = LM_ST_EXCLUSIVE;
-        clear_bit(GLF_DEMOTE, &gl->gl_flags);
-        smp_mb__after_clear_bit();
-        wake_up_bit(&gl->gl_flags, GLF_DEMOTE);
-}
-
 static void wait_on_demote(struct gfs2_glock *gl)
 {
         might_sleep();
@@ -481,217 +811,6 @@ static void wait_on_demote(struct gfs2_glock *gl)
 }
 
 /**
- * rq_mutex - process a mutex request in the queue
- * @gh: the glock holder
- *
- * Returns: 1 if the queue is blocked
- */
-
-static int rq_mutex(struct gfs2_holder *gh)
-{
-        struct gfs2_glock *gl = gh->gh_gl;
-
-        list_del_init(&gh->gh_list);
-        /*  gh->gh_error never examined.  */
-        set_bit(GLF_LOCK, &gl->gl_flags);
-        clear_bit(HIF_WAIT, &gh->gh_iflags);
-        smp_mb();
-        wake_up_bit(&gh->gh_iflags, HIF_WAIT);
-
-        return 1;
-}
-
-/**
- * rq_promote - process a promote request in the queue
- * @gh: the glock holder
- *
- * Acquire a new inter-node lock, or change a lock state to more restrictive.
- *
- * Returns: 1 if the queue is blocked
- */
-
-static int rq_promote(struct gfs2_holder *gh)
-{
-        struct gfs2_glock *gl = gh->gh_gl;
-
-        if (!relaxed_state_ok(gl->gl_state, gh->gh_state, gh->gh_flags)) {
-                if (list_empty(&gl->gl_holders)) {
-                        gl->gl_req_gh = gh;
-                        set_bit(GLF_LOCK, &gl->gl_flags);
-                        spin_unlock(&gl->gl_spin);
-                        gfs2_glock_xmote_th(gh->gh_gl, gh);
-                        spin_lock(&gl->gl_spin);
-                }
-                return 1;
-        }
-
-        if (list_empty(&gl->gl_holders)) {
-                set_bit(HIF_FIRST, &gh->gh_iflags);
-                set_bit(GLF_LOCK, &gl->gl_flags);
-        } else {
-                struct gfs2_holder *next_gh;
-                if (gh->gh_state == LM_ST_EXCLUSIVE)
-                        return 1;
-                next_gh = list_entry(gl->gl_holders.next, struct gfs2_holder,
-                                     gh_list);
-                if (next_gh->gh_state == LM_ST_EXCLUSIVE)
-                         return 1;
-        }
-
-        list_move_tail(&gh->gh_list, &gl->gl_holders);
-        gh->gh_error = 0;
-        set_bit(HIF_HOLDER, &gh->gh_iflags);
-
-        gfs2_holder_wake(gh);
-
-        return 0;
-}
-
-/**
- * rq_demote - process a demote request in the queue
- * @gh: the glock holder
- *
- * Returns: 1 if the queue is blocked
- */
-
-static int rq_demote(struct gfs2_glock *gl)
-{
-        if (!list_empty(&gl->gl_holders))
-                return 1;
-
-        if (gl->gl_state == gl->gl_demote_state ||
-            gl->gl_state == LM_ST_UNLOCKED) {
-                gfs2_demote_wake(gl);
-                return 0;
-        }
-
-        set_bit(GLF_LOCK, &gl->gl_flags);
-        set_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags);
-
-        if (gl->gl_demote_state == LM_ST_UNLOCKED ||
-            gl->gl_state != LM_ST_EXCLUSIVE) {
-                spin_unlock(&gl->gl_spin);
-                gfs2_glock_drop_th(gl);
-        } else {
-                spin_unlock(&gl->gl_spin);
-                gfs2_glock_xmote_th(gl, NULL);
-        }
-
-        spin_lock(&gl->gl_spin);
-        clear_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags);
-
-        return 0;
-}
-
-/**
- * run_queue - process holder structures on a glock
- * @gl: the glock
- *
- */
-static void run_queue(struct gfs2_glock *gl)
-{
-        struct gfs2_holder *gh;
-        int blocked = 1;
-
-        for (;;) {
-                if (test_bit(GLF_LOCK, &gl->gl_flags))
-                        break;
-
-                if (!list_empty(&gl->gl_waiters1)) {
-                        gh = list_entry(gl->gl_waiters1.next,
-                                        struct gfs2_holder, gh_list);
-                        blocked = rq_mutex(gh);
-                } else if (test_bit(GLF_DEMOTE, &gl->gl_flags)) {
-                        blocked = rq_demote(gl);
-                        if (test_bit(GLF_WAITERS2, &gl->gl_flags) &&
-                                     !blocked) {
-                                set_bit(GLF_DEMOTE, &gl->gl_flags);
-                                gl->gl_demote_state = LM_ST_UNLOCKED;
-                        }
-                        clear_bit(GLF_WAITERS2, &gl->gl_flags);
-                } else if (!list_empty(&gl->gl_waiters3)) {
-                        gh = list_entry(gl->gl_waiters3.next,
-                                        struct gfs2_holder, gh_list);
-                        blocked = rq_promote(gh);
-                } else
-                        break;
-
-                if (blocked)
-                        break;
-        }
-}
-
-/**
- * gfs2_glmutex_lock - acquire a local lock on a glock
- * @gl: the glock
- *
- * Gives caller exclusive access to manipulate a glock structure.
- */
-
-static void gfs2_glmutex_lock(struct gfs2_glock *gl)
-{
-        spin_lock(&gl->gl_spin);
-        if (test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
-                struct gfs2_holder gh;
-
-                gfs2_holder_init(gl, 0, 0, &gh);
-                set_bit(HIF_WAIT, &gh.gh_iflags);
-                list_add_tail(&gh.gh_list, &gl->gl_waiters1);
-                spin_unlock(&gl->gl_spin);
-                wait_on_holder(&gh);
-                gfs2_holder_uninit(&gh);
-        } else {
-                gl->gl_owner_pid = get_pid(task_pid(current));
-                gl->gl_ip = (unsigned long)__builtin_return_address(0);
-                spin_unlock(&gl->gl_spin);
-        }
-}
-
-/**
- * gfs2_glmutex_trylock - try to acquire a local lock on a glock
- * @gl: the glock
- *
- * Returns: 1 if the glock is acquired
- */
-
-static int gfs2_glmutex_trylock(struct gfs2_glock *gl)
-{
-        int acquired = 1;
-
-        spin_lock(&gl->gl_spin);
-        if (test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
-                acquired = 0;
-        } else {
-                gl->gl_owner_pid = get_pid(task_pid(current));
-                gl->gl_ip = (unsigned long)__builtin_return_address(0);
-        }
-        spin_unlock(&gl->gl_spin);
-
-        return acquired;
-}
-
-/**
- * gfs2_glmutex_unlock - release a local lock on a glock
- * @gl: the glock
- *
- */
-
-static void gfs2_glmutex_unlock(struct gfs2_glock *gl)
-{
-        struct pid *pid;
-
-        spin_lock(&gl->gl_spin);
-        clear_bit(GLF_LOCK, &gl->gl_flags);
-        pid = gl->gl_owner_pid;
-        gl->gl_owner_pid = NULL;
-        gl->gl_ip = 0;
-        run_queue(gl);
-        spin_unlock(&gl->gl_spin);
-
-        put_pid(pid);
-}
-
-/**
  * handle_callback - process a demote request
  * @gl: the glock
  * @state: the state the caller wants us to change to
@@ -705,398 +824,45 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state,
 {
         int bit = delay ? GLF_PENDING_DEMOTE : GLF_DEMOTE;
 
-        spin_lock(&gl->gl_spin);
         set_bit(bit, &gl->gl_flags);
         if (gl->gl_demote_state == LM_ST_EXCLUSIVE) {
                 gl->gl_demote_state = state;
                 gl->gl_demote_time = jiffies;
                 if (remote && gl->gl_ops->go_type == LM_TYPE_IOPEN &&
-                    gl->gl_object) {
+                    gl->gl_object)
                         gfs2_glock_schedule_for_reclaim(gl);
-                        spin_unlock(&gl->gl_spin);
-                        return;
-                }
         } else if (gl->gl_demote_state != LM_ST_UNLOCKED &&
                         gl->gl_demote_state != state) {
-                if (test_bit(GLF_DEMOTE_IN_PROGRESS,  &gl->gl_flags)) 
-                        set_bit(GLF_WAITERS2, &gl->gl_flags);
-                else 
-                        gl->gl_demote_state = LM_ST_UNLOCKED;
-        }
-        spin_unlock(&gl->gl_spin);
-}
-
-/**
- * state_change - record that the glock is now in a different state
- * @gl: the glock
- * @new_state the new state
- *
- */
-
-static void state_change(struct gfs2_glock *gl, unsigned int new_state)
-{
-        int held1, held2;
-
-        held1 = (gl->gl_state != LM_ST_UNLOCKED);
-        held2 = (new_state != LM_ST_UNLOCKED);
-
-        if (held1 != held2) {
-                if (held2)
-                        gfs2_glock_hold(gl);
-                else
-                        gfs2_glock_put(gl);
+                gl->gl_demote_state = LM_ST_UNLOCKED;
         }
-
-        gl->gl_state = new_state;
-        gl->gl_tchange = jiffies;
 }
 
 /**
- * drop_bh - Called after a lock module unlock completes
- * @gl: the glock
- * @ret: the return status
- *
- * Doesn't wake up the process waiting on the struct gfs2_holder (if any)
- * Doesn't drop the reference on the glock the top half took out
- *
- */
-
-static void drop_bh(struct gfs2_glock *gl, unsigned int ret)
-{
-        struct gfs2_sbd *sdp = gl->gl_sbd;
-        struct gfs2_holder *gh = gl->gl_req_gh;
-
-        gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
-        gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
-        gfs2_assert_warn(sdp, !ret);
-
-        state_change(gl, LM_ST_UNLOCKED);
-
-        if (test_and_clear_bit(GLF_CONV_DEADLK, &gl->gl_flags)) {
-                spin_lock(&gl->gl_spin);
-                gh->gh_error = 0;
-                spin_unlock(&gl->gl_spin);
-                gfs2_glock_xmote_th(gl, gl->gl_req_gh);
-                gfs2_glock_put(gl);
-                return;
-        }
-
-        spin_lock(&gl->gl_spin);
-        gfs2_demote_wake(gl);
-        clear_bit(GLF_LOCK, &gl->gl_flags);
-        spin_unlock(&gl->gl_spin);
-        gfs2_glock_put(gl);
-}
-
-/**
- * xmote_bh - Called after the lock module is done acquiring a lock
- * @gl: The glock in question
- * @ret: the int returned from the lock module
- *
- */
-
-static void xmote_bh(struct gfs2_glock *gl, unsigned int ret)
-{
-        struct gfs2_sbd *sdp = gl->gl_sbd;
-        const struct gfs2_glock_operations *glops = gl->gl_ops;
-        struct gfs2_holder *gh = gl->gl_req_gh;
-        int op_done = 1;
-
-        if (!gh && (ret & LM_OUT_ST_MASK) == LM_ST_UNLOCKED) {
-                drop_bh(gl, ret);
-                return;
-        }
-
-        gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
-        gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
-        gfs2_assert_warn(sdp, !(ret & LM_OUT_ASYNC));
-
-        state_change(gl, ret & LM_OUT_ST_MASK);
-
-        /*  Deal with each possible exit condition  */
-
-        if (!gh) {
-                gl->gl_stamp = jiffies;
-                if (ret & LM_OUT_CANCELED) {
-                        op_done = 0;
-                } else {
-                        spin_lock(&gl->gl_spin);
-                        if (gl->gl_state != gl->gl_demote_state) {
-                                spin_unlock(&gl->gl_spin);
-                                gfs2_glock_drop_th(gl);
-                                gfs2_glock_put(gl);
-                                return;
-                        }
-                        gfs2_demote_wake(gl);
-                        spin_unlock(&gl->gl_spin);
-                }
-        } else {
-                spin_lock(&gl->gl_spin);
-                if (ret & LM_OUT_CONV_DEADLK) {
-                        gh->gh_error = 0;
-                        set_bit(GLF_CONV_DEADLK, &gl->gl_flags);
-                        spin_unlock(&gl->gl_spin);
-                        gfs2_glock_drop_th(gl);
-                        gfs2_glock_put(gl);
-                        return;
-                }
-                list_del_init(&gh->gh_list);
-                gh->gh_error = -EIO;
-                if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags))) 
-                        goto out;
-                gh->gh_error = GLR_CANCELED;
-                if (ret & LM_OUT_CANCELED) 
-                        goto out;
-                if (relaxed_state_ok(gl->gl_state, gh->gh_state, gh->gh_flags)) {
-                        list_add_tail(&gh->gh_list, &gl->gl_holders);
-                        gh->gh_error = 0;
-                        set_bit(HIF_HOLDER, &gh->gh_iflags);
-                        set_bit(HIF_FIRST, &gh->gh_iflags);
-                        op_done = 0;
-                        goto out;
-                }
-                gh->gh_error = GLR_TRYFAILED;
-                if (gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB))
-                        goto out;
-                gh->gh_error = -EINVAL;
-                if (gfs2_assert_withdraw(sdp, 0) == -1)
-                        fs_err(sdp, "ret = 0x%.8X\n", ret);
-out:
-                spin_unlock(&gl->gl_spin);
-        }
-
-        if (glops->go_xmote_bh)
-                glops->go_xmote_bh(gl);
-
-        if (op_done) {
-                spin_lock(&gl->gl_spin);
-                gl->gl_req_gh = NULL;
-                clear_bit(GLF_LOCK, &gl->gl_flags);
-                spin_unlock(&gl->gl_spin);
-        }
-
-        gfs2_glock_put(gl);
-
-        if (gh)
-                gfs2_holder_wake(gh);
-}
-
-static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
-                                 unsigned int cur_state, unsigned int req_state,
-                                 unsigned int flags)
-{
-        int ret = 0;
-        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-                ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock, cur_state,
-                                                         req_state, flags);
-        return ret;
-}
-
-/**
- * gfs2_glock_xmote_th - Call into the lock module to acquire or change a glock
- * @gl: The glock in question
- * @state: the requested state
- * @flags: modifier flags to the lock call
- *
- */
-
-static void gfs2_glock_xmote_th(struct gfs2_glock *gl, struct gfs2_holder *gh)
-{
-        struct gfs2_sbd *sdp = gl->gl_sbd;
-        int flags = gh ? gh->gh_flags : 0;
-        unsigned state = gh ? gh->gh_state : gl->gl_demote_state;
-        const struct gfs2_glock_operations *glops = gl->gl_ops;
-        int lck_flags = flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB |
-                                 LM_FLAG_NOEXP | LM_FLAG_ANY |
-                                 LM_FLAG_PRIORITY);
-        unsigned int lck_ret;
-
-        if (glops->go_xmote_th)
-                glops->go_xmote_th(gl);
-        if (state == LM_ST_DEFERRED && glops->go_inval)
-                glops->go_inval(gl, DIO_METADATA);
-
-        gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
-        gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
-        gfs2_assert_warn(sdp, state != LM_ST_UNLOCKED);
-        gfs2_assert_warn(sdp, state != gl->gl_state);
-
-        gfs2_glock_hold(gl);
-
-        lck_ret = gfs2_lm_lock(sdp, gl->gl_lock, gl->gl_state, state, lck_flags);
-
-        if (gfs2_assert_withdraw(sdp, !(lck_ret & LM_OUT_ERROR)))
-                return;
-
-        if (lck_ret & LM_OUT_ASYNC)
-                gfs2_assert_warn(sdp, lck_ret == LM_OUT_ASYNC);
-        else
-                xmote_bh(gl, lck_ret);
-}
-
-static unsigned int gfs2_lm_unlock(struct gfs2_sbd *sdp, void *lock,
-                                   unsigned int cur_state)
-{
-        int ret = 0;
-        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-                ret =  sdp->sd_lockstruct.ls_ops->lm_unlock(lock, cur_state);
-        return ret;
-}
-
-/**
- * gfs2_glock_drop_th - call into the lock module to unlock a lock
- * @gl: the glock
- *
- */
-
-static void gfs2_glock_drop_th(struct gfs2_glock *gl)
-{
-        struct gfs2_sbd *sdp = gl->gl_sbd;
-        const struct gfs2_glock_operations *glops = gl->gl_ops;
-        unsigned int ret;
-
-        if (glops->go_xmote_th)
-                glops->go_xmote_th(gl);
-        if (glops->go_inval)
-                glops->go_inval(gl, DIO_METADATA);
-
-        gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
-        gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
-        gfs2_assert_warn(sdp, gl->gl_state != LM_ST_UNLOCKED);
-
-        gfs2_glock_hold(gl);
-
-        ret = gfs2_lm_unlock(sdp, gl->gl_lock, gl->gl_state);
-
-        if (gfs2_assert_withdraw(sdp, !(ret & LM_OUT_ERROR)))
-                return;
-
-        if (!ret)
-                drop_bh(gl, ret);
-        else
-                gfs2_assert_warn(sdp, ret == LM_OUT_ASYNC);
-}
-
-/**
- * do_cancels - cancel requests for locks stuck waiting on an expire flag
- * @gh: the LM_FLAG_PRIORITY holder waiting to acquire the lock
- *
- * Don't cancel GL_NOCANCEL requests.
- */
-
-static void do_cancels(struct gfs2_holder *gh)
-{
-        struct gfs2_glock *gl = gh->gh_gl;
-        struct gfs2_sbd *sdp = gl->gl_sbd;
-
-        spin_lock(&gl->gl_spin);
-
-        while (gl->gl_req_gh != gh &&
-               !test_bit(HIF_HOLDER, &gh->gh_iflags) &&
-               !list_empty(&gh->gh_list)) {
-                if (!(gl->gl_req_gh && (gl->gl_req_gh->gh_flags & GL_NOCANCEL))) {
-                        spin_unlock(&gl->gl_spin);
-                        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-                                sdp->sd_lockstruct.ls_ops->lm_cancel(gl->gl_lock);
-                        msleep(100);
-                        spin_lock(&gl->gl_spin);
-                } else {
-                        spin_unlock(&gl->gl_spin);
-                        msleep(100);
-                        spin_lock(&gl->gl_spin);
-                }
-        }
-
-        spin_unlock(&gl->gl_spin);
-}
-
-/**
- * glock_wait_internal - wait on a glock acquisition
+ * gfs2_glock_wait - wait on a glock acquisition
  * @gh: the glock holder
  *
  * Returns: 0 on success
  */
 
-static int glock_wait_internal(struct gfs2_holder *gh)
+int gfs2_glock_wait(struct gfs2_holder *gh)
 {
-        struct gfs2_glock *gl = gh->gh_gl;
-        struct gfs2_sbd *sdp = gl->gl_sbd;
-        const struct gfs2_glock_operations *glops = gl->gl_ops;
-
-        if (test_bit(HIF_ABORTED, &gh->gh_iflags))
-                return -EIO;
-
-        if (gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)) {
-                spin_lock(&gl->gl_spin);
-                if (gl->gl_req_gh != gh &&
-                    !test_bit(HIF_HOLDER, &gh->gh_iflags) &&
-                    !list_empty(&gh->gh_list)) {
-                        list_del_init(&gh->gh_list);
-                        gh->gh_error = GLR_TRYFAILED;
-                        run_queue(gl);
-                        spin_unlock(&gl->gl_spin);
-                        return gh->gh_error;
-                }
-                spin_unlock(&gl->gl_spin);
-        }
-
-        if (gh->gh_flags & LM_FLAG_PRIORITY)
-                do_cancels(gh);
-
         wait_on_holder(gh);
-        if (gh->gh_error)
-                return gh->gh_error;
-
-        gfs2_assert_withdraw(sdp, test_bit(HIF_HOLDER, &gh->gh_iflags));
-        gfs2_assert_withdraw(sdp, relaxed_state_ok(gl->gl_state, gh->gh_state,
-                                                   gh->gh_flags));
-
-        if (test_bit(HIF_FIRST, &gh->gh_iflags)) {
-                gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
-
-                if (glops->go_lock) {
-                        gh->gh_error = glops->go_lock(gh);
-                        if (gh->gh_error) {
-                                spin_lock(&gl->gl_spin);
-                                list_del_init(&gh->gh_list);
-                                spin_unlock(&gl->gl_spin);
-                        }
-                }
-
-                spin_lock(&gl->gl_spin);
-                gl->gl_req_gh = NULL;
-                clear_bit(GLF_LOCK, &gl->gl_flags);
-                run_queue(gl);
-                spin_unlock(&gl->gl_spin);
-        }
-
         return gh->gh_error;
 }
 
-static inline struct gfs2_holder *
-find_holder_by_owner(struct list_head *head, struct pid *pid)
-{
-        struct gfs2_holder *gh;
-
-        list_for_each_entry(gh, head, gh_list) {
-                if (gh->gh_owner_pid == pid)
-                        return gh;
-        }
-
-        return NULL;
-}
-
-static void print_dbg(struct glock_iter *gi, const char *fmt, ...)
+void gfs2_print_dbg(struct seq_file *seq, const char *fmt, ...)
 {
         va_list args;
 
         va_start(args, fmt);
-        if (gi) {
+        if (seq) {
+                struct gfs2_glock_iter *gi = seq->private;
                 vsprintf(gi->string, fmt, args);
-                seq_printf(gi->seq, gi->string);
-        }
-        else
+                seq_printf(seq, gi->string);
+        } else {
+                printk(KERN_ERR " ");
                 vprintk(fmt, args);
+        }
         va_end(args);
 }
 
@@ -1104,50 +870,76 @@ static void print_dbg(struct glock_iter *gi, const char *fmt, ...)
  * add_to_queue - Add a holder to the wait queue (but look for recursion)
  * @gh: the holder structure to add
  *
+ * Eventually we should move the recursive locking trap to a
+ * debugging option or something like that. This is the fast
+ * path and needs to have the minimum number of distractions.
+ * 
  */
 
-static void add_to_queue(struct gfs2_holder *gh)
+static inline void add_to_queue(struct gfs2_holder *gh)
 {
         struct gfs2_glock *gl = gh->gh_gl;
-        struct gfs2_holder *existing;
+        struct gfs2_sbd *sdp = gl->gl_sbd;
+        struct list_head *insert_pt = NULL;
+        struct gfs2_holder *gh2;
+        int try_lock = 0;
 
         BUG_ON(gh->gh_owner_pid == NULL);
         if (test_and_set_bit(HIF_WAIT, &gh->gh_iflags))
                 BUG();
 
-        if (!(gh->gh_flags & GL_FLOCK)) {
-                existing = find_holder_by_owner(&gl->gl_holders, 
-                                                gh->gh_owner_pid);
-                if (existing) {
-                        print_symbol(KERN_WARNING "original: %s\n", 
-                                     existing->gh_ip);
-                        printk(KERN_INFO "pid : %d\n",
-                                        pid_nr(existing->gh_owner_pid));
-                        printk(KERN_INFO "lock type : %d lock state : %d\n",
-                               existing->gh_gl->gl_name.ln_type, 
-                               existing->gh_gl->gl_state);
-                        print_symbol(KERN_WARNING "new: %s\n", gh->gh_ip);
-                        printk(KERN_INFO "pid : %d\n",
-                                        pid_nr(gh->gh_owner_pid));
-                        printk(KERN_INFO "lock type : %d lock state : %d\n",
-                               gl->gl_name.ln_type, gl->gl_state);
-                        BUG();
-                }
-                
-                existing = find_holder_by_owner(&gl->gl_waiters3, 
-                                                gh->gh_owner_pid);
-                if (existing) {
-                        print_symbol(KERN_WARNING "original: %s\n", 
-                                     existing->gh_ip);
-                        print_symbol(KERN_WARNING "new: %s\n", gh->gh_ip);
-                        BUG();
+        if (gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)) {
+                if (test_bit(GLF_LOCK, &gl->gl_flags))
+                        try_lock = 1;
+                if (test_bit(GLF_INVALIDATE_IN_PROGRESS, &gl->gl_flags))
+                        goto fail;
+        }
+
+        list_for_each_entry(gh2, &gl->gl_holders, gh_list) {
+                if (unlikely(gh2->gh_owner_pid == gh->gh_owner_pid &&
+                    (gh->gh_gl->gl_ops->go_type != LM_TYPE_FLOCK)))
+                        goto trap_recursive;
+                if (try_lock &&
+                    !(gh2->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)) &&
+                    !may_grant(gl, gh)) {
+fail:
+                        gh->gh_error = GLR_TRYFAILED;
+                        gfs2_holder_wake(gh);
+                        return;
                 }
+                if (test_bit(HIF_HOLDER, &gh2->gh_iflags))
+                        continue;
+                if (unlikely((gh->gh_flags & LM_FLAG_PRIORITY) && !insert_pt))
+                        insert_pt = &gh2->gh_list;
+        }
+        if (likely(insert_pt == NULL)) {
+                list_add_tail(&gh->gh_list, &gl->gl_holders);
+                if (unlikely(gh->gh_flags & LM_FLAG_PRIORITY))
+                        goto do_cancel;
+                return;
+        }
+        list_add_tail(&gh->gh_list, insert_pt);
+do_cancel:
+        gh = list_entry(gl->gl_holders.next, struct gfs2_holder, gh_list);
+        if (!(gh->gh_flags & LM_FLAG_PRIORITY)) {
+                spin_unlock(&gl->gl_spin);
+                if (sdp->sd_lockstruct.ls_ops->lm_cancel)
+                        sdp->sd_lockstruct.ls_ops->lm_cancel(gl->gl_lock);
+                spin_lock(&gl->gl_spin);
         }
+        return;
 
-        if (gh->gh_flags & LM_FLAG_PRIORITY)
-                list_add(&gh->gh_list, &gl->gl_waiters3);
-        else
-                list_add_tail(&gh->gh_list, &gl->gl_waiters3);
+trap_recursive:
+        print_symbol(KERN_ERR "original: %s\n", gh2->gh_ip);
+        printk(KERN_ERR "pid: %d\n", pid_nr(gh2->gh_owner_pid));
+        printk(KERN_ERR "lock type: %d req lock state : %d\n",
+               gh2->gh_gl->gl_name.ln_type, gh2->gh_state);
+        print_symbol(KERN_ERR "new: %s\n", gh->gh_ip);
+        printk(KERN_ERR "pid: %d\n", pid_nr(gh->gh_owner_pid));
+        printk(KERN_ERR "lock type: %d req lock state : %d\n",
+               gh->gh_gl->gl_name.ln_type, gh->gh_state);
+        __dump_glock(NULL, gl);
+        BUG();
 }
 
 /**
@@ -1165,24 +957,16 @@ int gfs2_glock_nq(struct gfs2_holder *gh)
         struct gfs2_sbd *sdp = gl->gl_sbd;
         int error = 0;
 
-restart:
-        if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags))) {
-                set_bit(HIF_ABORTED, &gh->gh_iflags);
+        if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
                 return -EIO;
-        }
 
         spin_lock(&gl->gl_spin);
         add_to_queue(gh);
-        run_queue(gl);
+        run_queue(gl, 1);
         spin_unlock(&gl->gl_spin);
 
-        if (!(gh->gh_flags & GL_ASYNC)) {
-                error = glock_wait_internal(gh);
-                if (error == GLR_CANCELED) {
-                        msleep(100);
-                        goto restart;
-                }
-        }
+        if (!(gh->gh_flags & GL_ASYNC))
+                error = gfs2_glock_wait(gh);
 
         return error;
 }
@@ -1196,48 +980,7 @@ restart:
 
 int gfs2_glock_poll(struct gfs2_holder *gh)
 {
-        struct gfs2_glock *gl = gh->gh_gl;
-        int ready = 0;
-
-        spin_lock(&gl->gl_spin);
-
-        if (test_bit(HIF_HOLDER, &gh->gh_iflags))
-                ready = 1;
-        else if (list_empty(&gh->gh_list)) {
-                if (gh->gh_error == GLR_CANCELED) {
-                        spin_unlock(&gl->gl_spin);
-                        msleep(100);
-                        if (gfs2_glock_nq(gh))
-                                return 1;
-                        return 0;
-                } else
-                        ready = 1;
-        }
-
-        spin_unlock(&gl->gl_spin);
-
-        return ready;
-}
-
-/**
- * gfs2_glock_wait - wait for a lock acquisition that ended in a GLR_ASYNC
- * @gh: the holder structure
- *
- * Returns: 0, GLR_TRYFAILED, or errno on failure
- */
-
-int gfs2_glock_wait(struct gfs2_holder *gh)
-{
-        int error;
-
-        error = glock_wait_internal(gh);
-        if (error == GLR_CANCELED) {
-                msleep(100);
-                gh->gh_flags &= ~GL_ASYNC;
-                error = gfs2_glock_nq(gh);
-        }
-
-        return error;
+        return test_bit(HIF_WAIT, &gh->gh_iflags) ? 0 : 1;
 }
 
 /**
@@ -1251,26 +994,30 @@ void gfs2_glock_dq(struct gfs2_holder *gh)
         struct gfs2_glock *gl = gh->gh_gl;
         const struct gfs2_glock_operations *glops = gl->gl_ops;
         unsigned delay = 0;
+        int fast_path = 0;
 
+        spin_lock(&gl->gl_spin);
         if (gh->gh_flags & GL_NOCACHE)
                 handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
 
-        gfs2_glmutex_lock(gl);
-
-        spin_lock(&gl->gl_spin);
         list_del_init(&gh->gh_list);
-
-        if (list_empty(&gl->gl_holders)) {
+        if (find_first_holder(gl) == NULL) {
                 if (glops->go_unlock) {
+                        GLOCK_BUG_ON(gl, test_and_set_bit(GLF_LOCK, &gl->gl_flags));
                         spin_unlock(&gl->gl_spin);
                         glops->go_unlock(gh);
                         spin_lock(&gl->gl_spin);
+                        clear_bit(GLF_LOCK, &gl->gl_flags);
                 }
                 gl->gl_stamp = jiffies;
+                if (list_empty(&gl->gl_holders) &&
+                    !test_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
+                    !test_bit(GLF_DEMOTE, &gl->gl_flags))
+                        fast_path = 1;
         }
-
-        clear_bit(GLF_LOCK, &gl->gl_flags);
         spin_unlock(&gl->gl_spin);
+        if (likely(fast_path))
+                return;
 
         gfs2_glock_hold(gl);
         if (test_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
@@ -1454,6 +1201,8 @@ void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs)
 static int gfs2_lm_hold_lvb(struct gfs2_sbd *sdp, void *lock, char **lvbp)
 {
         int error = -EIO;
+        if (!sdp->sd_lockstruct.ls_ops->lm_hold_lvb)
+                return 0;
         if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
                 error = sdp->sd_lockstruct.ls_ops->lm_hold_lvb(lock, lvbp);
         return error;
@@ -1469,20 +1218,14 @@ int gfs2_lvb_hold(struct gfs2_glock *gl)
 {
         int error;
 
-        gfs2_glmutex_lock(gl);
-
         if (!atomic_read(&gl->gl_lvb_count)) {
                 error = gfs2_lm_hold_lvb(gl->gl_sbd, gl->gl_lock, &gl->gl_lvb);
-                if (error) {
-                        gfs2_glmutex_unlock(gl);
+                if (error) 
                         return error;
-                }
                 gfs2_glock_hold(gl);
         }
         atomic_inc(&gl->gl_lvb_count);
 
-        gfs2_glmutex_unlock(gl);
-
         return 0;
 }
 
@@ -1497,17 +1240,13 @@ void gfs2_lvb_unhold(struct gfs2_glock *gl)
         struct gfs2_sbd *sdp = gl->gl_sbd;
 
         gfs2_glock_hold(gl);
-        gfs2_glmutex_lock(gl);
-
         gfs2_assert(gl->gl_sbd, atomic_read(&gl->gl_lvb_count) > 0);
         if (atomic_dec_and_test(&gl->gl_lvb_count)) {
-                if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                if (sdp->sd_lockstruct.ls_ops->lm_unhold_lvb)
                         sdp->sd_lockstruct.ls_ops->lm_unhold_lvb(gl->gl_lock, gl->gl_lvb);
                 gl->gl_lvb = NULL;
                 gfs2_glock_put(gl);
         }
-
-        gfs2_glmutex_unlock(gl);
         gfs2_glock_put(gl);
 }
 
@@ -1527,7 +1266,9 @@ static void blocking_cb(struct gfs2_sbd *sdp, struct lm_lockname *name,
         if (time_before(now, holdtime))
                 delay = holdtime - now;
 
+        spin_lock(&gl->gl_spin);
         handle_callback(gl, state, 1, delay);
+        spin_unlock(&gl->gl_spin);
         if (queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
                 gfs2_glock_put(gl);
 }
@@ -1568,7 +1309,8 @@ void gfs2_glock_cb(void *cb_data, unsigned int type, void *data)
                 gl = gfs2_glock_find(sdp, &async->lc_name);
                 if (gfs2_assert_warn(sdp, gl))
                         return;
-                xmote_bh(gl, async->lc_ret);
+                gl->gl_reply = async->lc_ret;
+                set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
                 if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
                         gfs2_glock_put(gl);
                 up_read(&gfs2_umount_flush_sem);
@@ -1581,11 +1323,6 @@ void gfs2_glock_cb(void *cb_data, unsigned int type, void *data)
                         wake_up_process(sdp->sd_recoverd_process);
                 return;
 
-        case LM_CB_DROPLOCKS:
-                gfs2_gl_hash_clear(sdp, NO_WAIT);
-                gfs2_quota_scan(sdp);
-                return;
-
         default:
                 gfs2_assert_warn(sdp, 0);
                 return;
@@ -1646,6 +1383,7 @@ void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl)
 void gfs2_reclaim_glock(struct gfs2_sbd *sdp)
 {
         struct gfs2_glock *gl;
+        int done_callback = 0;
 
         spin_lock(&sdp->sd_reclaim_lock);
         if (list_empty(&sdp->sd_reclaim_list)) {
@@ -1660,14 +1398,16 @@ void gfs2_reclaim_glock(struct gfs2_sbd *sdp)
         atomic_dec(&sdp->sd_reclaim_count);
         atomic_inc(&sdp->sd_reclaimed);
 
-        if (gfs2_glmutex_trylock(gl)) {
-                if (list_empty(&gl->gl_holders) &&
-                    gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl))
-                        handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
-                gfs2_glmutex_unlock(gl);
+        spin_lock(&gl->gl_spin);
+        if (find_first_holder(gl) == NULL &&
+            gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl)) {
+                handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
+                done_callback = 1;
         }
-
-        gfs2_glock_put(gl);
+        spin_unlock(&gl->gl_spin);
+        if (!done_callback ||
+            queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
+                gfs2_glock_put(gl);
 }
 
 /**
@@ -1724,18 +1464,14 @@ static void scan_glock(struct gfs2_glock *gl)
 {
         if (gl->gl_ops == &gfs2_inode_glops && gl->gl_object)
                 return;
+        if (test_bit(GLF_LOCK, &gl->gl_flags))
+                return;
 
-        if (gfs2_glmutex_trylock(gl)) {
-                if (list_empty(&gl->gl_holders) &&
-                    gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl))
-                        goto out_schedule;
-                gfs2_glmutex_unlock(gl);
-        }
-        return;
-
-out_schedule:
-        gfs2_glmutex_unlock(gl);
-        gfs2_glock_schedule_for_reclaim(gl);
+        spin_lock(&gl->gl_spin);
+        if (find_first_holder(gl) == NULL &&
+            gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl))
+                gfs2_glock_schedule_for_reclaim(gl);
+        spin_unlock(&gl->gl_spin);
 }
 
 /**
@@ -1760,12 +1496,13 @@ static void clear_glock(struct gfs2_glock *gl)
                 spin_unlock(&sdp->sd_reclaim_lock);
         }
 
-        if (gfs2_glmutex_trylock(gl)) {
-                if (list_empty(&gl->gl_holders) &&
-                    gl->gl_state != LM_ST_UNLOCKED)
-                        handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
-                gfs2_glmutex_unlock(gl);
-        }
+        spin_lock(&gl->gl_spin);
+        if (find_first_holder(gl) == NULL && gl->gl_state != LM_ST_UNLOCKED)
+                handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
+        spin_unlock(&gl->gl_spin);
+        gfs2_glock_hold(gl);
+        if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
+                gfs2_glock_put(gl);
 }
 
 /**
@@ -1773,11 +1510,10 @@ static void clear_glock(struct gfs2_glock *gl)
  * @sdp: the filesystem
  * @wait: wait until it's all gone
  *
- * Called when unmounting the filesystem, or when inter-node lock manager
- * requests DROPLOCKS because it is running out of capacity.
+ * Called when unmounting the filesystem.
  */
 
-void gfs2_gl_hash_clear(struct gfs2_sbd *sdp, int wait)
+void gfs2_gl_hash_clear(struct gfs2_sbd *sdp)
 {
         unsigned long t;
         unsigned int x;
@@ -1792,7 +1528,7 @@ void gfs2_gl_hash_clear(struct gfs2_sbd *sdp, int wait)
                                 cont = 1;
                 }
 
-                if (!wait || !cont)
+                if (!cont)
                         break;
 
                 if (time_after_eq(jiffies,
@@ -1810,180 +1546,164 @@ void gfs2_gl_hash_clear(struct gfs2_sbd *sdp, int wait)
         }
 }
 
-/*
- *  Diagnostic routines to help debug distributed deadlock
- */
-
-static void gfs2_print_symbol(struct glock_iter *gi, const char *fmt,
-                              unsigned long address)
+static const char *state2str(unsigned state)
 {
-        char buffer[KSYM_SYMBOL_LEN];
-
-        sprint_symbol(buffer, address);
-        print_dbg(gi, fmt, buffer);
+        switch(state) {
+        case LM_ST_UNLOCKED:
+                return "UN";
+        case LM_ST_SHARED:
+                return "SH";
+        case LM_ST_DEFERRED:
+                return "DF";
+        case LM_ST_EXCLUSIVE:
+                return "EX";
+        }
+        return "??";
+}
+
+static const char *hflags2str(char *buf, unsigned flags, unsigned long iflags)
+{
+        char *p = buf;
+        if (flags & LM_FLAG_TRY)
+                *p++ = 't';
+        if (flags & LM_FLAG_TRY_1CB)
+                *p++ = 'T';
+        if (flags & LM_FLAG_NOEXP)
+                *p++ = 'e';
+        if (flags & LM_FLAG_ANY)
+                *p++ = 'a';
+        if (flags & LM_FLAG_PRIORITY)
+                *p++ = 'p';
+        if (flags & GL_ASYNC)
+                *p++ = 'a';
+        if (flags & GL_EXACT)
+                *p++ = 'E';
+        if (flags & GL_ATIME)
+                *p++ = 'a';
+        if (flags & GL_NOCACHE)
+                *p++ = 'c';
+        if (test_bit(HIF_HOLDER, &iflags))
+                *p++ = 'H';
+        if (test_bit(HIF_WAIT, &iflags))
+                *p++ = 'W';
+        if (test_bit(HIF_FIRST, &iflags))
+                *p++ = 'F';
+        *p = 0;
+        return buf;
 }
 
 /**
  * dump_holder - print information about a glock holder
- * @str: a string naming the type of holder
+ * @seq: the seq_file struct
  * @gh: the glock holder
  *
  * Returns: 0 on success, -ENOBUFS when we run out of space
  */
 
-static int dump_holder(struct glock_iter *gi, char *str,
-                       struct gfs2_holder *gh)
+static int dump_holder(struct seq_file *seq, const struct gfs2_holder *gh)
 {
-        unsigned int x;
-        struct task_struct *gh_owner;
+        struct task_struct *gh_owner = NULL;
+        char buffer[KSYM_SYMBOL_LEN];
+        char flags_buf[32];
 
-        print_dbg(gi, "  %s\n", str);
-        if (gh->gh_owner_pid) {
-                print_dbg(gi, "    owner = %ld ",
-                                (long)pid_nr(gh->gh_owner_pid));
+        sprint_symbol(buffer, gh->gh_ip);
+        if (gh->gh_owner_pid)
                 gh_owner = pid_task(gh->gh_owner_pid, PIDTYPE_PID);
-                if (gh_owner)
-                        print_dbg(gi, "(%s)\n", gh_owner->comm);
-                else
-                        print_dbg(gi, "(ended)\n");
-        } else
-                print_dbg(gi, "    owner = -1\n");
-        print_dbg(gi, "    gh_state = %u\n", gh->gh_state);
-        print_dbg(gi, "    gh_flags =");
-        for (x = 0; x < 32; x++)
-                if (gh->gh_flags & (1 << x))
-                        print_dbg(gi, " %u", x);
-        print_dbg(gi, " \n");
-        print_dbg(gi, "    error = %d\n", gh->gh_error);
-        print_dbg(gi, "    gh_iflags =");
-        for (x = 0; x < 32; x++)
-                if (test_bit(x, &gh->gh_iflags))
-                        print_dbg(gi, " %u", x);
-        print_dbg(gi, " \n");
-        gfs2_print_symbol(gi, "    initialized at: %s\n", gh->gh_ip);
-
+        gfs2_print_dbg(seq, " H: s:%s f:%s e:%d p:%ld [%s] %s\n",
+                  state2str(gh->gh_state),
+                  hflags2str(flags_buf, gh->gh_flags, gh->gh_iflags),
+                  gh->gh_error, 
+                  gh->gh_owner_pid ? (long)pid_nr(gh->gh_owner_pid) : -1,
+                  gh_owner ? gh_owner->comm : "(ended)", buffer);
         return 0;
 }
 
-/**
- * dump_inode - print information about an inode
- * @ip: the inode
- *
- * Returns: 0 on success, -ENOBUFS when we run out of space
- */
-
-static int dump_inode(struct glock_iter *gi, struct gfs2_inode *ip)
-{
-        unsigned int x;
-
-        print_dbg(gi, "  Inode:\n");
-        print_dbg(gi, "    num = %llu/%llu\n",
-                  (unsigned long long)ip->i_no_formal_ino,
-                  (unsigned long long)ip->i_no_addr);
-        print_dbg(gi, "    type = %u\n", IF2DT(ip->i_inode.i_mode));
-        print_dbg(gi, "    i_flags =");
-        for (x = 0; x < 32; x++)
-                if (test_bit(x, &ip->i_flags))
-                        print_dbg(gi, " %u", x);
-        print_dbg(gi, " \n");
-        return 0;
+static const char *gflags2str(char *buf, const unsigned long *gflags)
+{
+        char *p = buf;
+        if (test_bit(GLF_LOCK, gflags))
+                *p++ = 'l';
+        if (test_bit(GLF_STICKY, gflags))
+                *p++ = 's';
+        if (test_bit(GLF_DEMOTE, gflags))
+                *p++ = 'D';
+        if (test_bit(GLF_PENDING_DEMOTE, gflags))
+                *p++ = 'd';
+        if (test_bit(GLF_DEMOTE_IN_PROGRESS, gflags))
+                *p++ = 'p';
+        if (test_bit(GLF_DIRTY, gflags))
+                *p++ = 'y';
+        if (test_bit(GLF_LFLUSH, gflags))
+                *p++ = 'f';
+        if (test_bit(GLF_INVALIDATE_IN_PROGRESS, gflags))
+                *p++ = 'i';
+        if (test_bit(GLF_REPLY_PENDING, gflags))
+                *p++ = 'r';
+        *p = 0;
+        return buf;
 }
 
 /**
- * dump_glock - print information about a glock
+ * __dump_glock - print information about a glock
+ * @seq: The seq_file struct
  * @gl: the glock
- * @count: where we are in the buffer
+ *
+ * The file format is as follows:
+ * One line per object, capital letters are used to indicate objects
+ * G = glock, I = Inode, R = rgrp, H = holder. Glocks are not indented,
+ * other objects are indented by a single space and follow the glock to
+ * which they are related. Fields are indicated by lower case letters
+ * followed by a colon and the field value, except for strings which are in
+ * [] so that its possible to see if they are composed of spaces for
+ * example. The field's are n = number (id of the object), f = flags,
+ * t = type, s = state, r = refcount, e = error, p = pid.
  *
  * Returns: 0 on success, -ENOBUFS when we run out of space
  */
 
-static int dump_glock(struct glock_iter *gi, struct gfs2_glock *gl)
+static int __dump_glock(struct seq_file *seq, const struct gfs2_glock *gl)
 {
-        struct gfs2_holder *gh;
-        unsigned int x;
-        int error = -ENOBUFS;
-        struct task_struct *gl_owner;
+        const struct gfs2_glock_operations *glops = gl->gl_ops;
+        unsigned long long dtime;
+        const struct gfs2_holder *gh;
+        char gflags_buf[32];
+        int error = 0;
 
-        spin_lock(&gl->gl_spin);
+        dtime = jiffies - gl->gl_demote_time;
+        dtime *= 1000000/HZ; /* demote time in uSec */
+        if (!test_bit(GLF_DEMOTE, &gl->gl_flags))
+                dtime = 0;
+        gfs2_print_dbg(seq, "G:  s:%s n:%u/%llu f:%s t:%s d:%s/%llu l:%d a:%d r:%d\n",
+                  state2str(gl->gl_state),
+                  gl->gl_name.ln_type,
+                  (unsigned long long)gl->gl_name.ln_number,
+                  gflags2str(gflags_buf, &gl->gl_flags),
+                  state2str(gl->gl_target),
+                  state2str(gl->gl_demote_state), dtime,
+                  atomic_read(&gl->gl_lvb_count),
+                  atomic_read(&gl->gl_ail_count),
+                  atomic_read(&gl->gl_ref));
 
-        print_dbg(gi, "Glock 0x%p (%u, 0x%llx)\n", gl, gl->gl_name.ln_type,
-                   (unsigned long long)gl->gl_name.ln_number);
-        print_dbg(gi, "  gl_flags =");
-        for (x = 0; x < 32; x++) {
-                if (test_bit(x, &gl->gl_flags))
-                        print_dbg(gi, " %u", x);
-        }
-        if (!test_bit(GLF_LOCK, &gl->gl_flags))
-                print_dbg(gi, " (unlocked)");
-        print_dbg(gi, " \n");
-        print_dbg(gi, "  gl_ref = %d\n", atomic_read(&gl->gl_ref));
-        print_dbg(gi, "  gl_state = %u\n", gl->gl_state);
-        if (gl->gl_owner_pid) {
-                gl_owner = pid_task(gl->gl_owner_pid, PIDTYPE_PID);
-                if (gl_owner)
-                        print_dbg(gi, "  gl_owner = pid %d (%s)\n",
-                                  pid_nr(gl->gl_owner_pid), gl_owner->comm);
-                else
-                        print_dbg(gi, "  gl_owner = %d (ended)\n",
-                                  pid_nr(gl->gl_owner_pid));
-        } else
-                print_dbg(gi, "  gl_owner = -1\n");
-        print_dbg(gi, "  gl_ip = %lu\n", gl->gl_ip);
-        print_dbg(gi, "  req_gh = %s\n", (gl->gl_req_gh) ? "yes" : "no");
-        print_dbg(gi, "  lvb_count = %d\n", atomic_read(&gl->gl_lvb_count));
-        print_dbg(gi, "  object = %s\n", (gl->gl_object) ? "yes" : "no");
-        print_dbg(gi, "  reclaim = %s\n",
-                   (list_empty(&gl->gl_reclaim)) ? "no" : "yes");
-        if (gl->gl_aspace)
-                print_dbg(gi, "  aspace = 0x%p nrpages = %lu\n", gl->gl_aspace,
-                           gl->gl_aspace->i_mapping->nrpages);
-        else
-                print_dbg(gi, "  aspace = no\n");
-        print_dbg(gi, "  ail = %d\n", atomic_read(&gl->gl_ail_count));
-        if (gl->gl_req_gh) {
-                error = dump_holder(gi, "Request", gl->gl_req_gh);
-                if (error)
-                        goto out;
-        }
         list_for_each_entry(gh, &gl->gl_holders, gh_list) {
-                error = dump_holder(gi, "Holder", gh);
+                error = dump_holder(seq, gh);
                 if (error)
                         goto out;
         }
-        list_for_each_entry(gh, &gl->gl_waiters1, gh_list) {
-                error = dump_holder(gi, "Waiter1", gh);
-                if (error)
-                        goto out;
-        }
-        list_for_each_entry(gh, &gl->gl_waiters3, gh_list) {
-                error = dump_holder(gi, "Waiter3", gh);
-                if (error)
-                        goto out;
-        }
-        if (test_bit(GLF_DEMOTE, &gl->gl_flags)) {
-                print_dbg(gi, "  Demotion req to state %u (%llu uS ago)\n",
-                          gl->gl_demote_state, (unsigned long long)
-                          (jiffies - gl->gl_demote_time)*(1000000/HZ));
-        }
-        if (gl->gl_ops == &gfs2_inode_glops && gl->gl_object) {
-                if (!test_bit(GLF_LOCK, &gl->gl_flags) &&
-                        list_empty(&gl->gl_holders)) {
-                        error = dump_inode(gi, gl->gl_object);
-                        if (error)
-                                goto out;
-                } else {
-                        error = -ENOBUFS;
-                        print_dbg(gi, "  Inode: busy\n");
-                }
-        }
-
-        error = 0;
-
+        if (gl->gl_state != LM_ST_UNLOCKED && glops->go_dump)
+                error = glops->go_dump(seq, gl);
 out:
-        spin_unlock(&gl->gl_spin);
         return error;
 }
 
+static int dump_glock(struct seq_file *seq, struct gfs2_glock *gl)
+{
+        int ret;
+        spin_lock(&gl->gl_spin);
+        ret = __dump_glock(seq, gl);
+        spin_unlock(&gl->gl_spin);
+        return ret;
+}
+
 /**
  * gfs2_dump_lockstate - print out the current lockstate
  * @sdp: the filesystem
@@ -2086,7 +1806,7 @@ void gfs2_glock_exit(void)
 module_param(scand_secs, uint, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(scand_secs, "The number of seconds between scand runs");
 
-static int gfs2_glock_iter_next(struct glock_iter *gi)
+static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
 {
         struct gfs2_glock *gl;
 
@@ -2104,7 +1824,7 @@ restart:
                 gfs2_glock_put(gl);
         if (gl && gi->gl == NULL)
                 gi->hash++;
-        while(gi->gl == NULL) {
+        while (gi->gl == NULL) {
                 if (gi->hash >= GFS2_GL_HASH_SIZE)
                         return 1;
                 read_lock(gl_lock_addr(gi->hash));
@@ -2122,58 +1842,34 @@ restart:
         return 0;
 }
 
-static void gfs2_glock_iter_free(struct glock_iter *gi)
+static void gfs2_glock_iter_free(struct gfs2_glock_iter *gi)
 {
         if (gi->gl)
                 gfs2_glock_put(gi->gl);
-        kfree(gi);
-}
-
-static struct glock_iter *gfs2_glock_iter_init(struct gfs2_sbd *sdp)
-{
-        struct glock_iter *gi;
-
-        gi = kmalloc(sizeof (*gi), GFP_KERNEL);
-        if (!gi)
-                return NULL;
-
-        gi->sdp = sdp;
-        gi->hash = 0;
-        gi->seq = NULL;
         gi->gl = NULL;
-        memset(gi->string, 0, sizeof(gi->string));
-
-        if (gfs2_glock_iter_next(gi)) {
-                gfs2_glock_iter_free(gi);
-                return NULL;
-        }
-
-        return gi;
 }
 
-static void *gfs2_glock_seq_start(struct seq_file *file, loff_t *pos)
+static void *gfs2_glock_seq_start(struct seq_file *seq, loff_t *pos)
 {
-        struct glock_iter *gi;
+        struct gfs2_glock_iter *gi = seq->private;
         loff_t n = *pos;
 
-        gi = gfs2_glock_iter_init(file->private);
-        if (!gi)
-                return NULL;
+        gi->hash = 0;
 
-        while(n--) {
+        do {
                 if (gfs2_glock_iter_next(gi)) {
                         gfs2_glock_iter_free(gi);
                         return NULL;
                 }
-        }
+        } while (n--);
 
-        return gi;
+        return gi->gl;
 }
 
-static void *gfs2_glock_seq_next(struct seq_file *file, void *iter_ptr,
+static void *gfs2_glock_seq_next(struct seq_file *seq, void *iter_ptr,
                                  loff_t *pos)
 {
-        struct glock_iter *gi = iter_ptr;
+        struct gfs2_glock_iter *gi = seq->private;
 
         (*pos)++;
 
@@ -2182,24 +1878,18 @@ static void *gfs2_glock_seq_next(struct seq_file *file, void *iter_ptr,
                 return NULL;
         }
 
-        return gi;
+        return gi->gl;
 }
 
-static void gfs2_glock_seq_stop(struct seq_file *file, void *iter_ptr)
+static void gfs2_glock_seq_stop(struct seq_file *seq, void *iter_ptr)
 {
-        struct glock_iter *gi = iter_ptr;
-        if (gi)
-                gfs2_glock_iter_free(gi);
+        struct gfs2_glock_iter *gi = seq->private;
+        gfs2_glock_iter_free(gi);
 }
 
-static int gfs2_glock_seq_show(struct seq_file *file, void *iter_ptr)
+static int gfs2_glock_seq_show(struct seq_file *seq, void *iter_ptr)
 {
-        struct glock_iter *gi = iter_ptr;
-
-        gi->seq = file;
-        dump_glock(gi, gi->gl);
-
-        return 0;
+        return dump_glock(seq, iter_ptr);
 }
 
 static const struct seq_operations gfs2_glock_seq_ops = {
@@ -2211,17 +1901,14 @@ static const struct seq_operations gfs2_glock_seq_ops = {
 
 static int gfs2_debugfs_open(struct inode *inode, struct file *file)
 {
-        struct seq_file *seq;
-        int ret;
-
-        ret = seq_open(file, &gfs2_glock_seq_ops);
-        if (ret)
-                return ret;
-
-        seq = file->private_data;
-        seq->private = inode->i_private;
-
-        return 0;
+        int ret = seq_open_private(file, &gfs2_glock_seq_ops,
+                                   sizeof(struct gfs2_glock_iter));
+        if (ret == 0) {
+                struct seq_file *seq = file->private_data;
+                struct gfs2_glock_iter *gi = seq->private;
+                gi->sdp = inode->i_private;
+        }
+        return ret;
 }
 
 static const struct file_operations gfs2_debug_fops = {
@@ -2229,7 +1916,7 @@ static const struct file_operations gfs2_debug_fops = {
         .open    = gfs2_debugfs_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = seq_release
+        .release = seq_release_private,
 };
 
 int gfs2_create_debugfs_file(struct gfs2_sbd *sdp)
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index cdad3e6f815..971d92af70f 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -26,11 +26,8 @@
 #define GL_SKIP                 0x00000100
 #define GL_ATIME                0x00000200
 #define GL_NOCACHE              0x00000400
-#define GL_FLOCK                0x00000800
-#define GL_NOCANCEL             0x00001000
 
 #define GLR_TRYFAILED           13
-#define GLR_CANCELED            14
 
 static inline struct gfs2_holder *gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
 {
@@ -41,6 +38,8 @@ static inline struct gfs2_holder *gfs2_glock_is_locked_by_me(struct gfs2_glock *
         spin_lock(&gl->gl_spin);
         pid = task_pid(current);
         list_for_each_entry(gh, &gl->gl_holders, gh_list) {
+                if (!test_bit(HIF_HOLDER, &gh->gh_iflags))
+                        break;
                 if (gh->gh_owner_pid == pid)
                         goto out;
         }
@@ -70,7 +69,7 @@ static inline int gfs2_glock_is_blocking(struct gfs2_glock *gl)
 {
         int ret;
         spin_lock(&gl->gl_spin);
-        ret = test_bit(GLF_DEMOTE, &gl->gl_flags) || !list_empty(&gl->gl_waiters3);
+        ret = test_bit(GLF_DEMOTE, &gl->gl_flags);
         spin_unlock(&gl->gl_spin);
         return ret;
 }
@@ -98,6 +97,7 @@ int gfs2_glock_nq_num(struct gfs2_sbd *sdp,
 int gfs2_glock_nq_m(unsigned int num_gh, struct gfs2_holder *ghs);
 void gfs2_glock_dq_m(unsigned int num_gh, struct gfs2_holder *ghs);
 void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs);
+void gfs2_print_dbg(struct seq_file *seq, const char *fmt, ...);
 
 /**
  * gfs2_glock_nq_init - intialize a holder and enqueue it on a glock
@@ -130,10 +130,9 @@ int gfs2_lvb_hold(struct gfs2_glock *gl);
 void gfs2_lvb_unhold(struct gfs2_glock *gl);
 
 void gfs2_glock_cb(void *cb_data, unsigned int type, void *data);
-
 void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl);
 void gfs2_reclaim_glock(struct gfs2_sbd *sdp);
-void gfs2_gl_hash_clear(struct gfs2_sbd *sdp, int wait);
+void gfs2_gl_hash_clear(struct gfs2_sbd *sdp);
 
 int __init gfs2_glock_init(void);
 void gfs2_glock_exit(void);
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 07d84d16cda..c6c318c2a0f 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -13,6 +13,7 @@
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/lm_interface.h>
+#include <linux/bio.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -172,26 +173,6 @@ static void inode_go_sync(struct gfs2_glock *gl)
 }
 
 /**
- * inode_go_xmote_bh - After promoting/demoting a glock
- * @gl: the glock
- *
- */
-
-static void inode_go_xmote_bh(struct gfs2_glock *gl)
-{
-        struct gfs2_holder *gh = gl->gl_req_gh;
-        struct buffer_head *bh;
-        int error;
-
-        if (gl->gl_state != LM_ST_UNLOCKED &&
-            (!gh || !(gh->gh_flags & GL_SKIP))) {
-                error = gfs2_meta_read(gl, gl->gl_name.ln_number, 0, &bh);
-                if (!error)
-                        brelse(bh);
-        }
-}
-
-/**
  * inode_go_inval - prepare a inode glock to be released
  * @gl: the glock
  * @flags:
@@ -267,6 +248,26 @@ static int inode_go_lock(struct gfs2_holder *gh)
 }
 
 /**
+ * inode_go_dump - print information about an inode
+ * @seq: The iterator
+ * @ip: the inode
+ *
+ * Returns: 0 on success, -ENOBUFS when we run out of space
+ */
+
+static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
+{
+        const struct gfs2_inode *ip = gl->gl_object;
+        if (ip == NULL)
+                return 0;
+        gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%08lx\n",
+                  (unsigned long long)ip->i_no_formal_ino,
+                  (unsigned long long)ip->i_no_addr,
+                  IF2DT(ip->i_inode.i_mode), ip->i_flags);
+        return 0;
+}
+
+/**
  * rgrp_go_demote_ok - Check to see if it's ok to unlock a RG's glock
  * @gl: the glock
  *
@@ -306,6 +307,22 @@ static void rgrp_go_unlock(struct gfs2_holder *gh)
 }
 
 /**
+ * rgrp_go_dump - print out an rgrp
+ * @seq: The iterator
+ * @gl: The glock in question
+ *
+ */
+
+static int rgrp_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
+{
+        const struct gfs2_rgrpd *rgd = gl->gl_object;
+        if (rgd == NULL)
+                return 0;
+        gfs2_print_dbg(seq, " R: n:%llu\n", (unsigned long long)rgd->rd_addr);
+        return 0;
+}
+
+/**
  * trans_go_sync - promote/demote the transaction glock
  * @gl: the glock
  * @state: the requested state
@@ -330,7 +347,7 @@ static void trans_go_sync(struct gfs2_glock *gl)
  *
  */
 
-static void trans_go_xmote_bh(struct gfs2_glock *gl)
+static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh)
 {
         struct gfs2_sbd *sdp = gl->gl_sbd;
         struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);
@@ -338,8 +355,7 @@ static void trans_go_xmote_bh(struct gfs2_glock *gl)
         struct gfs2_log_header_host head;
         int error;
 
-        if (gl->gl_state != LM_ST_UNLOCKED &&
-            test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
+        if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
                 j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
 
                 error = gfs2_find_jhead(sdp->sd_jdesc, &head);
@@ -354,6 +370,7 @@ static void trans_go_xmote_bh(struct gfs2_glock *gl)
                         gfs2_log_pointers_init(sdp, head.lh_blkno);
                 }
         }
+        return 0;
 }
 
 /**
@@ -375,12 +392,12 @@ const struct gfs2_glock_operations gfs2_meta_glops = {
 
 const struct gfs2_glock_operations gfs2_inode_glops = {
         .go_xmote_th = inode_go_sync,
-        .go_xmote_bh = inode_go_xmote_bh,
         .go_inval = inode_go_inval,
         .go_demote_ok = inode_go_demote_ok,
         .go_lock = inode_go_lock,
+        .go_dump = inode_go_dump,
         .go_type = LM_TYPE_INODE,
-        .go_min_hold_time = HZ / 10,
+        .go_min_hold_time = HZ / 5,
 };
 
 const struct gfs2_glock_operations gfs2_rgrp_glops = {
@@ -389,8 +406,9 @@ const struct gfs2_glock_operations gfs2_rgrp_glops = {
         .go_demote_ok = rgrp_go_demote_ok,
         .go_lock = rgrp_go_lock,
         .go_unlock = rgrp_go_unlock,
+        .go_dump = rgrp_go_dump,
         .go_type = LM_TYPE_RGRP,
-        .go_min_hold_time = HZ / 10,
+        .go_min_hold_time = HZ / 5,
 };
 
 const struct gfs2_glock_operations gfs2_trans_glops = {
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index eabe5eac41d..448697a5c46 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -77,7 +77,6 @@ struct gfs2_rgrp_host {
 struct gfs2_rgrpd {
         struct list_head rd_list;       /* Link with superblock */
         struct list_head rd_list_mru;
-        struct list_head rd_recent;     /* Recently used rgrps */
         struct gfs2_glock *rd_gl;       /* Glock for this rgrp */
         u64 rd_addr;                    /* grp block disk address */
         u64 rd_data0;                   /* first data location */
@@ -128,20 +127,20 @@ struct gfs2_bufdata {
 
 struct gfs2_glock_operations {
         void (*go_xmote_th) (struct gfs2_glock *gl);
-        void (*go_xmote_bh) (struct gfs2_glock *gl);
+        int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh);
         void (*go_inval) (struct gfs2_glock *gl, int flags);
         int (*go_demote_ok) (struct gfs2_glock *gl);
         int (*go_lock) (struct gfs2_holder *gh);
         void (*go_unlock) (struct gfs2_holder *gh);
+        int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl);
         const int go_type;
         const unsigned long go_min_hold_time;
 };
 
 enum {
         /* States */
-        HIF_HOLDER              = 6,
+        HIF_HOLDER              = 6,  /* Set for gh that "holds" the glock */
         HIF_FIRST               = 7,
-        HIF_ABORTED             = 9,
         HIF_WAIT                = 10,
 };
 
@@ -154,20 +153,20 @@ struct gfs2_holder {
         unsigned gh_flags;
 
         int gh_error;
-        unsigned long gh_iflags;
+        unsigned long gh_iflags; /* HIF_... */
         unsigned long gh_ip;
 };
 
 enum {
-        GLF_LOCK                = 1,
-        GLF_STICKY              = 2,
-        GLF_DEMOTE              = 3,
-        GLF_PENDING_DEMOTE      = 4,
-        GLF_DIRTY               = 5,
-        GLF_DEMOTE_IN_PROGRESS  = 6,
-        GLF_LFLUSH              = 7,
-        GLF_WAITERS2            = 8,
-        GLF_CONV_DEADLK         = 9,
+        GLF_LOCK                        = 1,
+        GLF_STICKY                      = 2,
+        GLF_DEMOTE                      = 3,
+        GLF_PENDING_DEMOTE              = 4,
+        GLF_DEMOTE_IN_PROGRESS          = 5,
+        GLF_DIRTY                       = 6,
+        GLF_LFLUSH                      = 7,
+        GLF_INVALIDATE_IN_PROGRESS      = 8,
+        GLF_REPLY_PENDING               = 9,
 };
 
 struct gfs2_glock {
@@ -179,19 +178,14 @@ struct gfs2_glock {
         spinlock_t gl_spin;
 
         unsigned int gl_state;
+        unsigned int gl_target;
+        unsigned int gl_reply;
         unsigned int gl_hash;
         unsigned int gl_demote_state; /* state requested by remote node */
         unsigned long gl_demote_time; /* time of first demote request */
-        struct pid *gl_owner_pid;
-        unsigned long gl_ip;
         struct list_head gl_holders;
-        struct list_head gl_waiters1;   /* HIF_MUTEX */
-        struct list_head gl_waiters3;   /* HIF_PROMOTE */
 
         const struct gfs2_glock_operations *gl_ops;
-
-        struct gfs2_holder *gl_req_gh;
-
         void *gl_lock;
         char *gl_lvb;
         atomic_t gl_lvb_count;
@@ -427,7 +421,6 @@ struct gfs2_tune {
         unsigned int gt_quota_quantum; /* Secs between syncs to quota file */
         unsigned int gt_atime_quantum; /* Min secs between atime updates */
         unsigned int gt_new_files_jdata;
-        unsigned int gt_new_files_directio;
         unsigned int gt_max_readahead; /* Max bytes to read-ahead from disk */
         unsigned int gt_stall_secs; /* Detects trouble! */
         unsigned int gt_complain_secs;
@@ -534,7 +527,6 @@ struct gfs2_sbd {
         struct mutex sd_rindex_mutex;
         struct list_head sd_rindex_list;
         struct list_head sd_rindex_mru_list;
-        struct list_head sd_rindex_recent_list;
         struct gfs2_rgrpd *sd_rindex_forward;
         unsigned int sd_rgrps;
 
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 09453d057e4..6da0ab355b8 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -504,7 +504,7 @@ struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
         }
 
         if (!is_root) {
-                error = permission(dir, MAY_EXEC, NULL);
+                error = gfs2_permission(dir, MAY_EXEC);
                 if (error)
                         goto out;
         }
@@ -667,7 +667,7 @@ static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
 {
         int error;
 
-        error = permission(&dip->i_inode, MAY_WRITE | MAY_EXEC, NULL);
+        error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
         if (error)
                 return error;
 
@@ -789,13 +789,8 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
                 if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_JDATA) ||
                     gfs2_tune_get(sdp, gt_new_files_jdata))
                         di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
-                if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_DIRECTIO) ||
-                    gfs2_tune_get(sdp, gt_new_files_directio))
-                        di->di_flags |= cpu_to_be32(GFS2_DIF_DIRECTIO);
         } else if (S_ISDIR(mode)) {
                 di->di_flags |= cpu_to_be32(dip->i_di.di_flags &
-                                            GFS2_DIF_INHERIT_DIRECTIO);
-                di->di_flags |= cpu_to_be32(dip->i_di.di_flags &
                                             GFS2_DIF_INHERIT_JDATA);
         }
 
@@ -1134,7 +1129,7 @@ int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
         if (IS_APPEND(&dip->i_inode))
                 return -EPERM;
 
-        error = permission(&dip->i_inode, MAY_WRITE | MAY_EXEC, NULL);
+        error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
         if (error)
                 return error;
 
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 580da454b38..6074c2506f7 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -72,7 +72,6 @@ static inline void gfs2_inum_out(const struct gfs2_inode *ip,
 }
 
 
-void gfs2_inode_attr_in(struct gfs2_inode *ip);
 void gfs2_set_iop(struct inode *inode);
 struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type, 
                                 u64 no_addr, u64 no_formal_ino,
@@ -91,6 +90,7 @@ int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
                 struct gfs2_inode *ip);
 int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
                    const struct gfs2_inode *ip);
+int gfs2_permission(struct inode *inode, int mask);
 int gfs2_ok_to_move(struct gfs2_inode *this, struct gfs2_inode *to);
 int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len);
 int gfs2_glock_nq_atime(struct gfs2_holder *gh);
diff --git a/fs/gfs2/locking.c b/fs/gfs2/locking.c
index 663fee72878..523243a13a2 100644
--- a/fs/gfs2/locking.c
+++ b/fs/gfs2/locking.c
@@ -23,12 +23,54 @@ struct lmh_wrapper {
         const struct lm_lockops *lw_ops;
 };
 
+static int nolock_mount(char *table_name, char *host_data,
+                        lm_callback_t cb, void *cb_data,
+                        unsigned int min_lvb_size, int flags,
+                        struct lm_lockstruct *lockstruct,
+                        struct kobject *fskobj);
+
 /* List of registered low-level locking protocols.  A file system selects one
    of them by name at mount time, e.g. lock_nolock, lock_dlm. */
 
+static const struct lm_lockops nolock_ops = {
+        .lm_proto_name = "lock_nolock",
+        .lm_mount = nolock_mount,
+};
+
+static struct lmh_wrapper nolock_proto  = {
+        .lw_list = LIST_HEAD_INIT(nolock_proto.lw_list),
+        .lw_ops = &nolock_ops,
+};
+
 static LIST_HEAD(lmh_list);
 static DEFINE_MUTEX(lmh_lock);
 
+static int nolock_mount(char *table_name, char *host_data,
+                        lm_callback_t cb, void *cb_data,
+                        unsigned int min_lvb_size, int flags,
+                        struct lm_lockstruct *lockstruct,
+                        struct kobject *fskobj)
+{
+        char *c;
+        unsigned int jid;
+
+        c = strstr(host_data, "jid=");
+        if (!c)
+                jid = 0;
+        else {
+                c += 4;
+                sscanf(c, "%u", &jid);
+        }
+
+        lockstruct->ls_jid = jid;
+        lockstruct->ls_first = 1;
+        lockstruct->ls_lvb_size = min_lvb_size;
+        lockstruct->ls_ops = &nolock_ops;
+        lockstruct->ls_flags = LM_LSFLAG_LOCAL;
+
+        return 0;
+}
+
 /**
  * gfs2_register_lockproto - Register a low-level locking protocol
  * @proto: the protocol definition
@@ -116,9 +158,13 @@ int gfs2_mount_lockproto(char *proto_name, char *table_name, char *host_data,
         int try = 0;
         int error, found;
 
+
 retry:
         mutex_lock(&lmh_lock);
 
+        if (list_empty(&nolock_proto.lw_list))
+                list_add(&nolock_proto.lw_list, &lmh_list);
+
         found = 0;
         list_for_each_entry(lw, &lmh_list, lw_list) {
                 if (!strcmp(lw->lw_ops->lm_proto_name, proto_name)) {
@@ -139,7 +185,8 @@ retry:
                 goto out;
         }
 
-        if (!try_module_get(lw->lw_ops->lm_owner)) {
+        if (lw->lw_ops->lm_owner &&
+            !try_module_get(lw->lw_ops->lm_owner)) {
                 try = 0;
                 mutex_unlock(&lmh_lock);
                 msleep(1000);
@@ -158,7 +205,8 @@ out:
 void gfs2_unmount_lockproto(struct lm_lockstruct *lockstruct)
 {
         mutex_lock(&lmh_lock);
-        lockstruct->ls_ops->lm_unmount(lockstruct->ls_lockspace);
+        if (lockstruct->ls_ops->lm_unmount)
+                lockstruct->ls_ops->lm_unmount(lockstruct->ls_lockspace);
         if (lockstruct->ls_ops->lm_owner)
                 module_put(lockstruct->ls_ops->lm_owner);
         mutex_unlock(&lmh_lock);
diff --git a/fs/gfs2/locking/dlm/lock.c b/fs/gfs2/locking/dlm/lock.c
index cf7ea8abec8..2482c904750 100644
--- a/fs/gfs2/locking/dlm/lock.c
+++ b/fs/gfs2/locking/dlm/lock.c
@@ -11,46 +11,60 @@
 
 static char junk_lvb[GDLM_LVB_SIZE];
 
-static void queue_complete(struct gdlm_lock *lp)
+
+/* convert dlm lock-mode to gfs lock-state */
+
+static s16 gdlm_make_lmstate(s16 dlmmode)
 {
-        struct gdlm_ls *ls = lp->ls;
+        switch (dlmmode) {
+        case DLM_LOCK_IV:
+        case DLM_LOCK_NL:
+                return LM_ST_UNLOCKED;
+        case DLM_LOCK_EX:
+                return LM_ST_EXCLUSIVE;
+        case DLM_LOCK_CW:
+                return LM_ST_DEFERRED;
+        case DLM_LOCK_PR:
+                return LM_ST_SHARED;
+        }
+        gdlm_assert(0, "unknown DLM mode %d", dlmmode);
+        return -1;
+}
 
-        clear_bit(LFL_ACTIVE, &lp->flags);
+/* A lock placed on this queue is re-submitted to DLM as soon as the lock_dlm
+   thread gets to it. */
+
+static void queue_submit(struct gdlm_lock *lp)
+{
+        struct gdlm_ls *ls = lp->ls;
 
         spin_lock(&ls->async_lock);
-        list_add_tail(&lp->clist, &ls->complete);
+        list_add_tail(&lp->delay_list, &ls->submit);
         spin_unlock(&ls->async_lock);
         wake_up(&ls->thread_wait);
 }
 
-static inline void gdlm_ast(void *astarg)
+static void wake_up_ast(struct gdlm_lock *lp)
 {
-        queue_complete(astarg);
+        clear_bit(LFL_AST_WAIT, &lp->flags);
+        smp_mb__after_clear_bit();
+        wake_up_bit(&lp->flags, LFL_AST_WAIT);
 }
 
-static inline void gdlm_bast(void *astarg, int mode)
+static void gdlm_delete_lp(struct gdlm_lock *lp)
 {
-        struct gdlm_lock *lp = astarg;
         struct gdlm_ls *ls = lp->ls;
 
-        if (!mode) {
-                printk(KERN_INFO "lock_dlm: bast mode zero %x,%llx\n",
-                        lp->lockname.ln_type,
-                        (unsigned long long)lp->lockname.ln_number);
-                return;
-        }
-
         spin_lock(&ls->async_lock);
-        if (!lp->bast_mode) {
-                list_add_tail(&lp->blist, &ls->blocking);
-                lp->bast_mode = mode;
-        } else if (lp->bast_mode < mode)
-                lp->bast_mode = mode;
+        if (!list_empty(&lp->delay_list))
+                list_del_init(&lp->delay_list);
+        ls->all_locks_count--;
         spin_unlock(&ls->async_lock);
-        wake_up(&ls->thread_wait);
+
+        kfree(lp);
 }
 
-void gdlm_queue_delayed(struct gdlm_lock *lp)
+static void gdlm_queue_delayed(struct gdlm_lock *lp)
 {
         struct gdlm_ls *ls = lp->ls;
 
@@ -59,6 +73,236 @@ void gdlm_queue_delayed(struct gdlm_lock *lp)
         spin_unlock(&ls->async_lock);
 }
 
+static void process_complete(struct gdlm_lock *lp)
+{
+        struct gdlm_ls *ls = lp->ls;
+        struct lm_async_cb acb;
+
+        memset(&acb, 0, sizeof(acb));
+
+        if (lp->lksb.sb_status == -DLM_ECANCEL) {
+                log_info("complete dlm cancel %x,%llx flags %lx",
+                         lp->lockname.ln_type,
+                         (unsigned long long)lp->lockname.ln_number,
+                         lp->flags);
+
+                lp->req = lp->cur;
+                acb.lc_ret |= LM_OUT_CANCELED;
+                if (lp->cur == DLM_LOCK_IV)
+                        lp->lksb.sb_lkid = 0;
+                goto out;
+        }
+
+        if (test_and_clear_bit(LFL_DLM_UNLOCK, &lp->flags)) {
+                if (lp->lksb.sb_status != -DLM_EUNLOCK) {
+                        log_info("unlock sb_status %d %x,%llx flags %lx",
+                                 lp->lksb.sb_status, lp->lockname.ln_type,
+                                 (unsigned long long)lp->lockname.ln_number,
+                                 lp->flags);
+                        return;
+                }
+
+                lp->cur = DLM_LOCK_IV;
+                lp->req = DLM_LOCK_IV;
+                lp->lksb.sb_lkid = 0;
+
+                if (test_and_clear_bit(LFL_UNLOCK_DELETE, &lp->flags)) {
+                        gdlm_delete_lp(lp);
+                        return;
+                }
+                goto out;
+        }
+
+        if (lp->lksb.sb_flags & DLM_SBF_VALNOTVALID)
+                memset(lp->lksb.sb_lvbptr, 0, GDLM_LVB_SIZE);
+
+        if (lp->lksb.sb_flags & DLM_SBF_ALTMODE) {
+                if (lp->req == DLM_LOCK_PR)
+                        lp->req = DLM_LOCK_CW;
+                else if (lp->req == DLM_LOCK_CW)
+                        lp->req = DLM_LOCK_PR;
+        }
+
+        /*
+         * A canceled lock request.  The lock was just taken off the delayed
+         * list and was never even submitted to dlm.
+         */
+
+        if (test_and_clear_bit(LFL_CANCEL, &lp->flags)) {
+                log_info("complete internal cancel %x,%llx",
+                         lp->lockname.ln_type,
+                         (unsigned long long)lp->lockname.ln_number);
+                lp->req = lp->cur;
+                acb.lc_ret |= LM_OUT_CANCELED;
+                goto out;
+        }
+
+        /*
+         * An error occured.
+         */
+
+        if (lp->lksb.sb_status) {
+                /* a "normal" error */
+                if ((lp->lksb.sb_status == -EAGAIN) &&
+                    (lp->lkf & DLM_LKF_NOQUEUE)) {
+                        lp->req = lp->cur;
+                        if (lp->cur == DLM_LOCK_IV)
+                                lp->lksb.sb_lkid = 0;
+                        goto out;
+                }
+
+                /* this could only happen with cancels I think */
+                log_info("ast sb_status %d %x,%llx flags %lx",
+                         lp->lksb.sb_status, lp->lockname.ln_type,
+                         (unsigned long long)lp->lockname.ln_number,
+                         lp->flags);
+                return;
+        }
+
+        /*
+         * This is an AST for an EX->EX conversion for sync_lvb from GFS.
+         */
+
+        if (test_and_clear_bit(LFL_SYNC_LVB, &lp->flags)) {
+                wake_up_ast(lp);
+                return;
+        }
+
+        /*
+         * A lock has been demoted to NL because it initially completed during
+         * BLOCK_LOCKS.  Now it must be requested in the originally requested
+         * mode.
+         */
+
+        if (test_and_clear_bit(LFL_REREQUEST, &lp->flags)) {
+                gdlm_assert(lp->req == DLM_LOCK_NL, "%x,%llx",
+                            lp->lockname.ln_type,
+                            (unsigned long long)lp->lockname.ln_number);
+                gdlm_assert(lp->prev_req > DLM_LOCK_NL, "%x,%llx",
+                            lp->lockname.ln_type,
+                            (unsigned long long)lp->lockname.ln_number);
+
+                lp->cur = DLM_LOCK_NL;
+                lp->req = lp->prev_req;
+                lp->prev_req = DLM_LOCK_IV;
+                lp->lkf &= ~DLM_LKF_CONVDEADLK;
+
+                set_bit(LFL_NOCACHE, &lp->flags);
+
+                if (test_bit(DFL_BLOCK_LOCKS, &ls->flags) &&
+                    !test_bit(LFL_NOBLOCK, &lp->flags))
+                        gdlm_queue_delayed(lp);
+                else
+                        queue_submit(lp);
+                return;
+        }
+
+        /*
+         * A request is granted during dlm recovery.  It may be granted
+         * because the locks of a failed node were cleared.  In that case,
+         * there may be inconsistent data beneath this lock and we must wait
+         * for recovery to complete to use it.  When gfs recovery is done this
+         * granted lock will be converted to NL and then reacquired in this
+         * granted state.
+         */
+
+        if (test_bit(DFL_BLOCK_LOCKS, &ls->flags) &&
+            !test_bit(LFL_NOBLOCK, &lp->flags) &&
+            lp->req != DLM_LOCK_NL) {
+
+                lp->cur = lp->req;
+                lp->prev_req = lp->req;
+                lp->req = DLM_LOCK_NL;
+                lp->lkf |= DLM_LKF_CONVERT;
+                lp->lkf &= ~DLM_LKF_CONVDEADLK;
+
+                log_debug("rereq %x,%llx id %x %d,%d",
+                          lp->lockname.ln_type,
+                          (unsigned long long)lp->lockname.ln_number,
+                          lp->lksb.sb_lkid, lp->cur, lp->req);
+
+                set_bit(LFL_REREQUEST, &lp->flags);
+                queue_submit(lp);
+                return;
+        }
+
+        /*
+         * DLM demoted the lock to NL before it was granted so GFS must be
+         * told it cannot cache data for this lock.
+         */
+
+        if (lp->lksb.sb_flags & DLM_SBF_DEMOTED)
+                set_bit(LFL_NOCACHE, &lp->flags);
+
+out:
+        /*
+         * This is an internal lock_dlm lock
+         */
+
+        if (test_bit(LFL_INLOCK, &lp->flags)) {
+                clear_bit(LFL_NOBLOCK, &lp->flags);
+                lp->cur = lp->req;
+                wake_up_ast(lp);
+                return;
+        }
+
+        /*
+         * Normal completion of a lock request.  Tell GFS it now has the lock.
+         */
+
+        clear_bit(LFL_NOBLOCK, &lp->flags);
+        lp->cur = lp->req;
+
+        acb.lc_name = lp->lockname;
+        acb.lc_ret |= gdlm_make_lmstate(lp->cur);
+
+        ls->fscb(ls->sdp, LM_CB_ASYNC, &acb);
+}
+
+static void gdlm_ast(void *astarg)
+{
+        struct gdlm_lock *lp = astarg;
+        clear_bit(LFL_ACTIVE, &lp->flags);
+        process_complete(lp);
+}
+
+static void process_blocking(struct gdlm_lock *lp, int bast_mode)
+{
+        struct gdlm_ls *ls = lp->ls;
+        unsigned int cb = 0;
+
+        switch (gdlm_make_lmstate(bast_mode)) {
+        case LM_ST_EXCLUSIVE:
+                cb = LM_CB_NEED_E;
+                break;
+        case LM_ST_DEFERRED:
+                cb = LM_CB_NEED_D;
+                break;
+        case LM_ST_SHARED:
+                cb = LM_CB_NEED_S;
+                break;
+        default:
+                gdlm_assert(0, "unknown bast mode %u", bast_mode);
+        }
+
+        ls->fscb(ls->sdp, cb, &lp->lockname);
+}
+
+
+static void gdlm_bast(void *astarg, int mode)
+{
+        struct gdlm_lock *lp = astarg;
+
+        if (!mode) {
+                printk(KERN_INFO "lock_dlm: bast mode zero %x,%llx\n",
+                        lp->lockname.ln_type,
+                        (unsigned long long)lp->lockname.ln_number);
+                return;
+        }
+
+        process_blocking(lp, mode);
+}
+
 /* convert gfs lock-state to dlm lock-mode */
 
 static s16 make_mode(s16 lmstate)
@@ -77,24 +321,6 @@ static s16 make_mode(s16 lmstate)
         return -1;
 }
 
-/* convert dlm lock-mode to gfs lock-state */
-
-s16 gdlm_make_lmstate(s16 dlmmode)
-{
-        switch (dlmmode) {
-        case DLM_LOCK_IV:
-        case DLM_LOCK_NL:
-                return LM_ST_UNLOCKED;
-        case DLM_LOCK_EX:
-                return LM_ST_EXCLUSIVE;
-        case DLM_LOCK_CW:
-                return LM_ST_DEFERRED;
-        case DLM_LOCK_PR:
-                return LM_ST_SHARED;
-        }
-        gdlm_assert(0, "unknown DLM mode %d", dlmmode);
-        return -1;
-}
 
 /* verify agreement with GFS on the current lock state, NB: DLM_LOCK_NL and
    DLM_LOCK_IV are both considered LM_ST_UNLOCKED by GFS. */
@@ -134,14 +360,6 @@ static inline unsigned int make_flags(struct gdlm_lock *lp,
 
         if (lp->lksb.sb_lkid != 0) {
                 lkf |= DLM_LKF_CONVERT;
-
-                /* Conversion deadlock avoidance by DLM */
-
-                if (!(lp->ls->fsflags & LM_MFLAG_CONV_NODROP) &&
-                    !test_bit(LFL_FORCE_PROMOTE, &lp->flags) &&
-                    !(lkf & DLM_LKF_NOQUEUE) &&
-                    cur > DLM_LOCK_NL && req > DLM_LOCK_NL && cur != req)
-                        lkf |= DLM_LKF_CONVDEADLK;
         }
 
         if (lp->lvb)
@@ -173,14 +391,9 @@ static int gdlm_create_lp(struct gdlm_ls *ls, struct lm_lockname *name,
         make_strname(name, &lp->strname);
         lp->ls = ls;
         lp->cur = DLM_LOCK_IV;
-        lp->lvb = NULL;
-        lp->hold_null = NULL;
-        INIT_LIST_HEAD(&lp->clist);
-        INIT_LIST_HEAD(&lp->blist);
         INIT_LIST_HEAD(&lp->delay_list);
 
         spin_lock(&ls->async_lock);
-        list_add(&lp->all_list, &ls->all_locks);
         ls->all_locks_count++;
         spin_unlock(&ls->async_lock);
 
@@ -188,26 +401,6 @@ static int gdlm_create_lp(struct gdlm_ls *ls, struct lm_lockname *name,
         return 0;
 }
 
-void gdlm_delete_lp(struct gdlm_lock *lp)
-{
-        struct gdlm_ls *ls = lp->ls;
-
-        spin_lock(&ls->async_lock);
-        if (!list_empty(&lp->clist))
-                list_del_init(&lp->clist);
-        if (!list_empty(&lp->blist))
-                list_del_init(&lp->blist);
-        if (!list_empty(&lp->delay_list))
-                list_del_init(&lp->delay_list);
-        gdlm_assert(!list_empty(&lp->all_list), "%x,%llx", lp->lockname.ln_type,
-                    (unsigned long long)lp->lockname.ln_number);
-        list_del_init(&lp->all_list);
-        ls->all_locks_count--;
-        spin_unlock(&ls->async_lock);
-
-        kfree(lp);
-}
-
 int gdlm_get_lock(void *lockspace, struct lm_lockname *name,
                   void **lockp)
 {
@@ -261,7 +454,7 @@ unsigned int gdlm_do_lock(struct gdlm_lock *lp)
 
         if ((error == -EAGAIN) && (lp->lkf & DLM_LKF_NOQUEUE)) {
                 lp->lksb.sb_status = -EAGAIN;
-                queue_complete(lp);
+                gdlm_ast(lp);
                 error = 0;
         }
 
@@ -308,6 +501,12 @@ unsigned int gdlm_lock(void *lock, unsigned int cur_state,
 {
         struct gdlm_lock *lp = lock;
 
+        if (req_state == LM_ST_UNLOCKED)
+                return gdlm_unlock(lock, cur_state);
+
+        if (req_state == LM_ST_UNLOCKED)
+                return gdlm_unlock(lock, cur_state);
+
         clear_bit(LFL_DLM_CANCEL, &lp->flags);
         if (flags & LM_FLAG_NOEXP)
                 set_bit(LFL_NOBLOCK, &lp->flags);
@@ -351,7 +550,7 @@ void gdlm_cancel(void *lock)
         if (delay_list) {
                 set_bit(LFL_CANCEL, &lp->flags);
                 set_bit(LFL_ACTIVE, &lp->flags);
-                queue_complete(lp);
+                gdlm_ast(lp);
                 return;
         }
 
@@ -507,22 +706,3 @@ void gdlm_submit_delayed(struct gdlm_ls *ls)
         wake_up(&ls->thread_wait);
 }
 
-int gdlm_release_all_locks(struct gdlm_ls *ls)
-{
-        struct gdlm_lock *lp, *safe;
-        int count = 0;
-
-        spin_lock(&ls->async_lock);
-        list_for_each_entry_safe(lp, safe, &ls->all_locks, all_list) {
-                list_del_init(&lp->all_list);
-
-                if (lp->lvb && lp->lvb != junk_lvb)
-                        kfree(lp->lvb);
-                kfree(lp);
-                count++;
-        }
-        spin_unlock(&ls->async_lock);
-
-        return count;
-}
-
diff --git a/fs/gfs2/locking/dlm/lock_dlm.h b/fs/gfs2/locking/dlm/lock_dlm.h
index a243cf69c54..3c98e7c6f93 100644
--- a/fs/gfs2/locking/dlm/lock_dlm.h
+++ b/fs/gfs2/locking/dlm/lock_dlm.h
@@ -72,19 +72,12 @@ struct gdlm_ls {
         int                     recover_jid_done;
         int                     recover_jid_status;
         spinlock_t              async_lock;
-        struct list_head        complete;
-        struct list_head        blocking;
         struct list_head        delayed;
         struct list_head        submit;
-        struct list_head        all_locks;
         u32             all_locks_count;
         wait_queue_head_t       wait_control;
-        struct task_struct      *thread1;
-        struct task_struct      *thread2;
+        struct task_struct      *thread;
         wait_queue_head_t       thread_wait;
-        unsigned long           drop_time;
-        int                     drop_locks_count;
-        int                     drop_locks_period;
 };
 
 enum {
@@ -117,12 +110,7 @@ struct gdlm_lock {
         u32                     lkf;            /* dlm flags DLM_LKF_ */
         unsigned long           flags;          /* lock_dlm flags LFL_ */
 
-        int                     bast_mode;      /* protected by async_lock */
-
-        struct list_head        clist;          /* complete */
-        struct list_head        blist;          /* blocking */
         struct list_head        delay_list;     /* delayed */
-        struct list_head        all_list;       /* all locks for the fs */
         struct gdlm_lock        *hold_null;     /* NL lock for hold_lvb */
 };
 
@@ -159,11 +147,7 @@ void gdlm_release_threads(struct gdlm_ls *);
 
 /* lock.c */
 
-s16 gdlm_make_lmstate(s16);
-void gdlm_queue_delayed(struct gdlm_lock *);
 void gdlm_submit_delayed(struct gdlm_ls *);
-int gdlm_release_all_locks(struct gdlm_ls *);
-void gdlm_delete_lp(struct gdlm_lock *);
 unsigned int gdlm_do_lock(struct gdlm_lock *);
 
 int gdlm_get_lock(void *, struct lm_lockname *, void **);
diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c
index 470bdf650b5..09d78c216f4 100644
--- a/fs/gfs2/locking/dlm/mount.c
+++ b/fs/gfs2/locking/dlm/mount.c
@@ -22,22 +22,14 @@ static struct gdlm_ls *init_gdlm(lm_callback_t cb, struct gfs2_sbd *sdp,
         if (!ls)
                 return NULL;
 
-        ls->drop_locks_count = GDLM_DROP_COUNT;
-        ls->drop_locks_period = GDLM_DROP_PERIOD;
         ls->fscb = cb;
         ls->sdp = sdp;
         ls->fsflags = flags;
         spin_lock_init(&ls->async_lock);
-        INIT_LIST_HEAD(&ls->complete);
-        INIT_LIST_HEAD(&ls->blocking);
         INIT_LIST_HEAD(&ls->delayed);
         INIT_LIST_HEAD(&ls->submit);
-        INIT_LIST_HEAD(&ls->all_locks);
         init_waitqueue_head(&ls->thread_wait);
         init_waitqueue_head(&ls->wait_control);
-        ls->thread1 = NULL;
-        ls->thread2 = NULL;
-        ls->drop_time = jiffies;
         ls->jid = -1;
 
         strncpy(buf, table_name, 256);
@@ -180,7 +172,6 @@ out:
 static void gdlm_unmount(void *lockspace)
 {
         struct gdlm_ls *ls = lockspace;
-        int rv;
 
         log_debug("unmount flags %lx", ls->flags);
 
@@ -194,9 +185,7 @@ static void gdlm_unmount(void *lockspace)
         gdlm_kobject_release(ls);
         dlm_release_lockspace(ls->dlm_lockspace, 2);
         gdlm_release_threads(ls);
-        rv = gdlm_release_all_locks(ls);
-        if (rv)
-                log_info("gdlm_unmount: %d stray locks freed", rv);
+        BUG_ON(ls->all_locks_count);
 out:
         kfree(ls);
 }
@@ -232,7 +221,6 @@ static void gdlm_withdraw(void *lockspace)
 
         dlm_release_lockspace(ls->dlm_lockspace, 2);
         gdlm_release_threads(ls);
-        gdlm_release_all_locks(ls);
         gdlm_kobject_release(ls);
 }
 
diff --git a/fs/gfs2/locking/dlm/sysfs.c b/fs/gfs2/locking/dlm/sysfs.c
index a4ff271df9e..4ec571c3d8a 100644
--- a/fs/gfs2/locking/dlm/sysfs.c
+++ b/fs/gfs2/locking/dlm/sysfs.c
@@ -114,17 +114,6 @@ static ssize_t recover_status_show(struct gdlm_ls *ls, char *buf)
         return sprintf(buf, "%d\n", ls->recover_jid_status);
 }
 
-static ssize_t drop_count_show(struct gdlm_ls *ls, char *buf)
-{
-        return sprintf(buf, "%d\n", ls->drop_locks_count);
-}
-
-static ssize_t drop_count_store(struct gdlm_ls *ls, const char *buf, size_t len)
-{
-        ls->drop_locks_count = simple_strtol(buf, NULL, 0);
-        return len;
-}
-
 struct gdlm_attr {
         struct attribute attr;
         ssize_t (*show)(struct gdlm_ls *, char *);
@@ -144,7 +133,6 @@ GDLM_ATTR(first_done,     0444, first_done_show,     NULL);
 GDLM_ATTR(recover,        0644, recover_show,        recover_store);
 GDLM_ATTR(recover_done,   0444, recover_done_show,   NULL);
 GDLM_ATTR(recover_status, 0444, recover_status_show, NULL);
-GDLM_ATTR(drop_count,     0644, drop_count_show,     drop_count_store);
 
 static struct attribute *gdlm_attrs[] = {
         &gdlm_attr_proto_name.attr,
@@ -157,7 +145,6 @@ static struct attribute *gdlm_attrs[] = {
         &gdlm_attr_recover.attr,
         &gdlm_attr_recover_done.attr,
         &gdlm_attr_recover_status.attr,
-        &gdlm_attr_drop_count.attr,
         NULL,
 };
 
diff --git a/fs/gfs2/locking/dlm/thread.c b/fs/gfs2/locking/dlm/thread.c
index e53db6fd28a..38823efd698 100644
--- a/fs/gfs2/locking/dlm/thread.c
+++ b/fs/gfs2/locking/dlm/thread.c
@@ -9,367 +9,60 @@
 
 #include "lock_dlm.h"
 
-/* A lock placed on this queue is re-submitted to DLM as soon as the lock_dlm
-   thread gets to it. */
-
-static void queue_submit(struct gdlm_lock *lp)
-{
-        struct gdlm_ls *ls = lp->ls;
-
-        spin_lock(&ls->async_lock);
-        list_add_tail(&lp->delay_list, &ls->submit);
-        spin_unlock(&ls->async_lock);
-        wake_up(&ls->thread_wait);
-}
-
-static void process_blocking(struct gdlm_lock *lp, int bast_mode)
-{
-        struct gdlm_ls *ls = lp->ls;
-        unsigned int cb = 0;
-
-        switch (gdlm_make_lmstate(bast_mode)) {
-        case LM_ST_EXCLUSIVE:
-                cb = LM_CB_NEED_E;
-                break;
-        case LM_ST_DEFERRED:
-                cb = LM_CB_NEED_D;
-                break;
-        case LM_ST_SHARED:
-                cb = LM_CB_NEED_S;
-                break;
-        default:
-                gdlm_assert(0, "unknown bast mode %u", lp->bast_mode);
-        }
-
-        ls->fscb(ls->sdp, cb, &lp->lockname);
-}
-
-static void wake_up_ast(struct gdlm_lock *lp)
-{
-        clear_bit(LFL_AST_WAIT, &lp->flags);
-        smp_mb__after_clear_bit();
-        wake_up_bit(&lp->flags, LFL_AST_WAIT);
-}
-
-static void process_complete(struct gdlm_lock *lp)
-{
-        struct gdlm_ls *ls = lp->ls;
-        struct lm_async_cb acb;
-        s16 prev_mode = lp->cur;
-
-        memset(&acb, 0, sizeof(acb));
-
-        if (lp->lksb.sb_status == -DLM_ECANCEL) {
-                log_info("complete dlm cancel %x,%llx flags %lx",
-                         lp->lockname.ln_type,
-                         (unsigned long long)lp->lockname.ln_number,
-                         lp->flags);
-
-                lp->req = lp->cur;
-                acb.lc_ret |= LM_OUT_CANCELED;
-                if (lp->cur == DLM_LOCK_IV)
-                        lp->lksb.sb_lkid = 0;
-                goto out;
-        }
-
-        if (test_and_clear_bit(LFL_DLM_UNLOCK, &lp->flags)) {
-                if (lp->lksb.sb_status != -DLM_EUNLOCK) {
-                        log_info("unlock sb_status %d %x,%llx flags %lx",
-                                 lp->lksb.sb_status, lp->lockname.ln_type,
-                                 (unsigned long long)lp->lockname.ln_number,
-                                 lp->flags);
-                        return;
-                }
-
-                lp->cur = DLM_LOCK_IV;
-                lp->req = DLM_LOCK_IV;
-                lp->lksb.sb_lkid = 0;
-
-                if (test_and_clear_bit(LFL_UNLOCK_DELETE, &lp->flags)) {
-                        gdlm_delete_lp(lp);
-                        return;
-                }
-                goto out;
-        }
-
-        if (lp->lksb.sb_flags & DLM_SBF_VALNOTVALID)
-                memset(lp->lksb.sb_lvbptr, 0, GDLM_LVB_SIZE);
-
-        if (lp->lksb.sb_flags & DLM_SBF_ALTMODE) {
-                if (lp->req == DLM_LOCK_PR)
-                        lp->req = DLM_LOCK_CW;
-                else if (lp->req == DLM_LOCK_CW)
-                        lp->req = DLM_LOCK_PR;
-        }
-
-        /*
-         * A canceled lock request.  The lock was just taken off the delayed
-         * list and was never even submitted to dlm.
-         */
-
-        if (test_and_clear_bit(LFL_CANCEL, &lp->flags)) {
-                log_info("complete internal cancel %x,%llx",
-                         lp->lockname.ln_type,
-                         (unsigned long long)lp->lockname.ln_number);
-                lp->req = lp->cur;
-                acb.lc_ret |= LM_OUT_CANCELED;
-                goto out;
-        }
-
-        /*
-         * An error occured.
-         */
-
-        if (lp->lksb.sb_status) {
-                /* a "normal" error */
-                if ((lp->lksb.sb_status == -EAGAIN) &&
-                    (lp->lkf & DLM_LKF_NOQUEUE)) {
-                        lp->req = lp->cur;
-                        if (lp->cur == DLM_LOCK_IV)
-                                lp->lksb.sb_lkid = 0;
-                        goto out;
-                }
-
-                /* this could only happen with cancels I think */
-                log_info("ast sb_status %d %x,%llx flags %lx",
-                         lp->lksb.sb_status, lp->lockname.ln_type,
-                         (unsigned long long)lp->lockname.ln_number,
-                         lp->flags);
-                if (lp->lksb.sb_status == -EDEADLOCK &&
-                    lp->ls->fsflags & LM_MFLAG_CONV_NODROP) {
-                        lp->req = lp->cur;
-                        acb.lc_ret |= LM_OUT_CONV_DEADLK;
-                        if (lp->cur == DLM_LOCK_IV)
-                                lp->lksb.sb_lkid = 0;
-                        goto out;
-                } else
-                        return;
-        }
-
-        /*
-         * This is an AST for an EX->EX conversion for sync_lvb from GFS.
-         */
-
-        if (test_and_clear_bit(LFL_SYNC_LVB, &lp->flags)) {
-                wake_up_ast(lp);
-                return;
-        }
-
-        /*
-         * A lock has been demoted to NL because it initially completed during
-         * BLOCK_LOCKS.  Now it must be requested in the originally requested
-         * mode.
-         */
-
-        if (test_and_clear_bit(LFL_REREQUEST, &lp->flags)) {
-                gdlm_assert(lp->req == DLM_LOCK_NL, "%x,%llx",
-                            lp->lockname.ln_type,
-                            (unsigned long long)lp->lockname.ln_number);
-                gdlm_assert(lp->prev_req > DLM_LOCK_NL, "%x,%llx",
-                            lp->lockname.ln_type,
-                            (unsigned long long)lp->lockname.ln_number);
-
-                lp->cur = DLM_LOCK_NL;
-                lp->req = lp->prev_req;
-                lp->prev_req = DLM_LOCK_IV;
-                lp->lkf &= ~DLM_LKF_CONVDEADLK;
-
-                set_bit(LFL_NOCACHE, &lp->flags);
-
-                if (test_bit(DFL_BLOCK_LOCKS, &ls->flags) &&
-                    !test_bit(LFL_NOBLOCK, &lp->flags))
-                        gdlm_queue_delayed(lp);
-                else
-                        queue_submit(lp);
-                return;
-        }
-
-        /*
-         * A request is granted during dlm recovery.  It may be granted
-         * because the locks of a failed node were cleared.  In that case,
-         * there may be inconsistent data beneath this lock and we must wait
-         * for recovery to complete to use it.  When gfs recovery is done this
-         * granted lock will be converted to NL and then reacquired in this
-         * granted state.
-         */
-
-        if (test_bit(DFL_BLOCK_LOCKS, &ls->flags) &&
-            !test_bit(LFL_NOBLOCK, &lp->flags) &&
-            lp->req != DLM_LOCK_NL) {
-
-                lp->cur = lp->req;
-                lp->prev_req = lp->req;
-                lp->req = DLM_LOCK_NL;
-                lp->lkf |= DLM_LKF_CONVERT;
-                lp->lkf &= ~DLM_LKF_CONVDEADLK;
-
-                log_debug("rereq %x,%llx id %x %d,%d",
-                          lp->lockname.ln_type,
-                          (unsigned long long)lp->lockname.ln_number,
-                          lp->lksb.sb_lkid, lp->cur, lp->req);
-
-                set_bit(LFL_REREQUEST, &lp->flags);
-                queue_submit(lp);
-                return;
-        }
-
-        /*
-         * DLM demoted the lock to NL before it was granted so GFS must be
-         * told it cannot cache data for this lock.
-         */
-
-        if (lp->lksb.sb_flags & DLM_SBF_DEMOTED)
-                set_bit(LFL_NOCACHE, &lp->flags);
-
-out:
-        /*
-         * This is an internal lock_dlm lock
-         */
-
-        if (test_bit(LFL_INLOCK, &lp->flags)) {
-                clear_bit(LFL_NOBLOCK, &lp->flags);
-                lp->cur = lp->req;
-                wake_up_ast(lp);
-                return;
-        }
-
-        /*
-         * Normal completion of a lock request.  Tell GFS it now has the lock.
-         */
-
-        clear_bit(LFL_NOBLOCK, &lp->flags);
-        lp->cur = lp->req;
-
-        acb.lc_name = lp->lockname;
-        acb.lc_ret |= gdlm_make_lmstate(lp->cur);
-
-        if (!test_and_clear_bit(LFL_NOCACHE, &lp->flags) &&
-            (lp->cur > DLM_LOCK_NL) && (prev_mode > DLM_LOCK_NL))
-                acb.lc_ret |= LM_OUT_CACHEABLE;
-
-        ls->fscb(ls->sdp, LM_CB_ASYNC, &acb);
-}
-
-static inline int no_work(struct gdlm_ls *ls, int blocking)
+static inline int no_work(struct gdlm_ls *ls)
 {
         int ret;
 
         spin_lock(&ls->async_lock);
-        ret = list_empty(&ls->complete) && list_empty(&ls->submit);
-        if (ret && blocking)
-                ret = list_empty(&ls->blocking);
+        ret = list_empty(&ls->submit);
         spin_unlock(&ls->async_lock);
 
         return ret;
 }
 
-static inline int check_drop(struct gdlm_ls *ls)
-{
-        if (!ls->drop_locks_count)
-                return 0;
-
-        if (time_after(jiffies, ls->drop_time + ls->drop_locks_period * HZ)) {
-                ls->drop_time = jiffies;
-                if (ls->all_locks_count >= ls->drop_locks_count)
-                        return 1;
-        }
-        return 0;
-}
-
-static int gdlm_thread(void *data, int blist)
+static int gdlm_thread(void *data)
 {
         struct gdlm_ls *ls = (struct gdlm_ls *) data;
         struct gdlm_lock *lp = NULL;
-        uint8_t complete, blocking, submit, drop;
-
-        /* Only thread1 is allowed to do blocking callbacks since gfs
-           may wait for a completion callback within a blocking cb. */
 
         while (!kthread_should_stop()) {
                 wait_event_interruptible(ls->thread_wait,
-                                !no_work(ls, blist) || kthread_should_stop());
-
-                complete = blocking = submit = drop = 0;
+                                !no_work(ls) || kthread_should_stop());
 
                 spin_lock(&ls->async_lock);
 
-                if (blist && !list_empty(&ls->blocking)) {
-                        lp = list_entry(ls->blocking.next, struct gdlm_lock,
-                                        blist);
-                        list_del_init(&lp->blist);
-                        blocking = lp->bast_mode;
-                        lp->bast_mode = 0;
-                } else if (!list_empty(&ls->complete)) {
-                        lp = list_entry(ls->complete.next, struct gdlm_lock,
-                                        clist);
-                        list_del_init(&lp->clist);
-                        complete = 1;
-                } else if (!list_empty(&ls->submit)) {
+                if (!list_empty(&ls->submit)) {
                         lp = list_entry(ls->submit.next, struct gdlm_lock,
                                         delay_list);
                         list_del_init(&lp->delay_list);
-                        submit = 1;
+                        spin_unlock(&ls->async_lock);
+                        gdlm_do_lock(lp);
+                        spin_lock(&ls->async_lock);
                 }
-
-                drop = check_drop(ls);
                 spin_unlock(&ls->async_lock);
-
-                if (complete)
-                        process_complete(lp);
-
-                else if (blocking)
-                        process_blocking(lp, blocking);
-
-                else if (submit)
-                        gdlm_do_lock(lp);
-
-                if (drop)
-                        ls->fscb(ls->sdp, LM_CB_DROPLOCKS, NULL);
-
-                schedule();
         }
 
         return 0;
 }
 
-static int gdlm_thread1(void *data)
-{
-        return gdlm_thread(data, 1);
-}
-
-static int gdlm_thread2(void *data)
-{
-        return gdlm_thread(data, 0);
-}
-
 int gdlm_init_threads(struct gdlm_ls *ls)
 {
         struct task_struct *p;
         int error;
 
-        p = kthread_run(gdlm_thread1, ls, "lock_dlm1");
-        error = IS_ERR(p);
-        if (error) {
-                log_error("can't start lock_dlm1 thread %d", error);
-                return error;
-        }
-        ls->thread1 = p;
-
-        p = kthread_run(gdlm_thread2, ls, "lock_dlm2");
+        p = kthread_run(gdlm_thread, ls, "lock_dlm");
         error = IS_ERR(p);
         if (error) {
-                log_error("can't start lock_dlm2 thread %d", error);
-                kthread_stop(ls->thread1);
+                log_error("can't start lock_dlm thread %d", error);
                 return error;
         }
-        ls->thread2 = p;
+        ls->thread = p;
 
         return 0;
 }
 
 void gdlm_release_threads(struct gdlm_ls *ls)
 {
-        kthread_stop(ls->thread1);
-        kthread_stop(ls->thread2);
+        kthread_stop(ls->thread);
 }
 
diff --git a/fs/gfs2/locking/nolock/Makefile b/fs/gfs2/locking/nolock/Makefile
deleted file mode 100644
index 35e9730bc3a..00000000000
--- a/fs/gfs2/locking/nolock/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_GFS2_FS_LOCKING_NOLOCK) += lock_nolock.o
-lock_nolock-y := main.o
-
diff --git a/fs/gfs2/locking/nolock/main.c b/fs/gfs2/locking/nolock/main.c
deleted file mode 100644
index 284a5ece8d9..00000000000
--- a/fs/gfs2/locking/nolock/main.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/fs.h>
-#include <linux/lm_interface.h>
-
-struct nolock_lockspace {
-        unsigned int nl_lvb_size;
-};
-
-static const struct lm_lockops nolock_ops;
-
-static int nolock_mount(char *table_name, char *host_data,
-                        lm_callback_t cb, void *cb_data,
-                        unsigned int min_lvb_size, int flags,
-                        struct lm_lockstruct *lockstruct,
-                        struct kobject *fskobj)
-{
-        char *c;
-        unsigned int jid;
-        struct nolock_lockspace *nl;
-
-        c = strstr(host_data, "jid=");
-        if (!c)
-                jid = 0;
-        else {
-                c += 4;
-                sscanf(c, "%u", &jid);
-        }
-
-        nl = kzalloc(sizeof(struct nolock_lockspace), GFP_KERNEL);
-        if (!nl)
-                return -ENOMEM;
-
-        nl->nl_lvb_size = min_lvb_size;
-
-        lockstruct->ls_jid = jid;
-        lockstruct->ls_first = 1;
-        lockstruct->ls_lvb_size = min_lvb_size;
-        lockstruct->ls_lockspace = nl;
-        lockstruct->ls_ops = &nolock_ops;
-        lockstruct->ls_flags = LM_LSFLAG_LOCAL;
-
-        return 0;
-}
-
-static void nolock_others_may_mount(void *lockspace)
-{
-}
-
-static void nolock_unmount(void *lockspace)
-{
-        struct nolock_lockspace *nl = lockspace;
-        kfree(nl);
-}
-
-static void nolock_withdraw(void *lockspace)
-{
-}
-
-/**
- * nolock_get_lock - get a lm_lock_t given a descripton of the lock
- * @lockspace: the lockspace the lock lives in
- * @name: the name of the lock
- * @lockp: return the lm_lock_t here
- *
- * Returns: 0 on success, -EXXX on failure
- */
-
-static int nolock_get_lock(void *lockspace, struct lm_lockname *name,
-                           void **lockp)
-{
-        *lockp = lockspace;
-        return 0;
-}
-
-/**
- * nolock_put_lock - get rid of a lock structure
- * @lock: the lock to throw away
- *
- */
-
-static void nolock_put_lock(void *lock)
-{
-}
-
-/**
- * nolock_lock - acquire a lock
- * @lock: the lock to manipulate
- * @cur_state: the current state
- * @req_state: the requested state
- * @flags: modifier flags
- *
- * Returns: A bitmap of LM_OUT_*
- */
-
-static unsigned int nolock_lock(void *lock, unsigned int cur_state,
-                                unsigned int req_state, unsigned int flags)
-{
-        return req_state | LM_OUT_CACHEABLE;
-}
-
-/**
- * nolock_unlock - unlock a lock
- * @lock: the lock to manipulate
- * @cur_state: the current state
- *
- * Returns: 0
- */
-
-static unsigned int nolock_unlock(void *lock, unsigned int cur_state)
-{
-        return 0;
-}
-
-static void nolock_cancel(void *lock)
-{
-}
-
-/**
- * nolock_hold_lvb - hold on to a lock value block
- * @lock: the lock the LVB is associated with
- * @lvbp: return the lm_lvb_t here
- *
- * Returns: 0 on success, -EXXX on failure
- */
-
-static int nolock_hold_lvb(void *lock, char **lvbp)
-{
-        struct nolock_lockspace *nl = lock;
-        int error = 0;
-
-        *lvbp = kzalloc(nl->nl_lvb_size, GFP_NOFS);
-        if (!*lvbp)
-                error = -ENOMEM;
-
-        return error;
-}
-
-/**
- * nolock_unhold_lvb - release a LVB
- * @lock: the lock the LVB is associated with
- * @lvb: the lock value block
- *
- */
-
-static void nolock_unhold_lvb(void *lock, char *lvb)
-{
-        kfree(lvb);
-}
-
-static int nolock_plock_get(void *lockspace, struct lm_lockname *name,
-                            struct file *file, struct file_lock *fl)
-{
-        posix_test_lock(file, fl);
-
-        return 0;
-}
-
-static int nolock_plock(void *lockspace, struct lm_lockname *name,
-                        struct file *file, int cmd, struct file_lock *fl)
-{
-        int error;
-        error = posix_lock_file_wait(file, fl);
-        return error;
-}
-
-static int nolock_punlock(void *lockspace, struct lm_lockname *name,
-                          struct file *file, struct file_lock *fl)
-{
-        int error;
-        error = posix_lock_file_wait(file, fl);
-        return error;
-}
-
-static void nolock_recovery_done(void *lockspace, unsigned int jid,
-                                 unsigned int message)
-{
-}
-
-static const struct lm_lockops nolock_ops = {
-        .lm_proto_name = "lock_nolock",
-        .lm_mount = nolock_mount,
-        .lm_others_may_mount = nolock_others_may_mount,
-        .lm_unmount = nolock_unmount,
-        .lm_withdraw = nolock_withdraw,
-        .lm_get_lock = nolock_get_lock,
-        .lm_put_lock = nolock_put_lock,
-        .lm_lock = nolock_lock,
-        .lm_unlock = nolock_unlock,
-        .lm_cancel = nolock_cancel,
-        .lm_hold_lvb = nolock_hold_lvb,
-        .lm_unhold_lvb = nolock_unhold_lvb,
-        .lm_plock_get = nolock_plock_get,
-        .lm_plock = nolock_plock,
-        .lm_punlock = nolock_punlock,
-        .lm_recovery_done = nolock_recovery_done,
-        .lm_owner = THIS_MODULE,
-};
-
-static int __init init_nolock(void)
-{
-        int error;
-
-        error = gfs2_register_lockproto(&nolock_ops);
-        if (error) {
-                printk(KERN_WARNING
-                       "lock_nolock: can't register protocol: %d\n", error);
-                return error;
-        }
-
-        printk(KERN_INFO
-               "Lock_Nolock (built %s %s) installed\n", __DATE__, __TIME__);
-        return 0;
-}
-
-static void __exit exit_nolock(void)
-{
-        gfs2_unregister_lockproto(&nolock_ops);
-}
-
-module_init(init_nolock);
-module_exit(exit_nolock);
-
-MODULE_DESCRIPTION("GFS Nolock Locking Module");
-MODULE_AUTHOR("Red Hat, Inc.");
-MODULE_LICENSE("GPL");
-
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 548264b1836..6c6af9f5e3a 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -87,6 +87,8 @@ void gfs2_remove_from_ail(struct gfs2_bufdata *bd)
  */
 
 static void gfs2_ail1_start_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
+__releases(&sdp->sd_log_lock)
+__acquires(&sdp->sd_log_lock)
 {
         struct gfs2_bufdata *bd, *s;
         struct buffer_head *bh;
diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h
index 77115281650..7c64510ccfd 100644
--- a/fs/gfs2/log.h
+++ b/fs/gfs2/log.h
@@ -21,6 +21,7 @@
  */
 
 static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
+__acquires(&sdp->sd_log_lock)
 {
         spin_lock(&sdp->sd_log_lock);
 }
@@ -32,6 +33,7 @@ static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
  */
 
 static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
+__releases(&sdp->sd_log_lock)
 {
         spin_unlock(&sdp->sd_log_lock);
 }
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 053e2ebbbd5..bcc668d0fad 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -40,8 +40,6 @@ static void gfs2_init_glock_once(struct kmem_cache *cachep, void *foo)
         INIT_HLIST_NODE(&gl->gl_list);
         spin_lock_init(&gl->gl_spin);
         INIT_LIST_HEAD(&gl->gl_holders);
-        INIT_LIST_HEAD(&gl->gl_waiters1);
-        INIT_LIST_HEAD(&gl->gl_waiters3);
         gl->gl_lvb = NULL;
         atomic_set(&gl->gl_lvb_count, 0);
         INIT_LIST_HEAD(&gl->gl_reclaim);
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index 78d75f892f8..09853620c95 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -129,7 +129,7 @@ void gfs2_meta_sync(struct gfs2_glock *gl)
 }
 
 /**
- * getbuf - Get a buffer with a given address space
+ * gfs2_getbuf - Get a buffer with a given address space
  * @gl: the glock
  * @blkno: the block number (filesystem scope)
  * @create: 1 if the buffer should be created
@@ -137,7 +137,7 @@ void gfs2_meta_sync(struct gfs2_glock *gl)
  * Returns: the buffer
  */
 
-static struct buffer_head *getbuf(struct gfs2_glock *gl, u64 blkno, int create)
+struct buffer_head *gfs2_getbuf(struct gfs2_glock *gl, u64 blkno, int create)
 {
         struct address_space *mapping = gl->gl_aspace->i_mapping;
         struct gfs2_sbd *sdp = gl->gl_sbd;
@@ -205,7 +205,7 @@ static void meta_prep_new(struct buffer_head *bh)
 struct buffer_head *gfs2_meta_new(struct gfs2_glock *gl, u64 blkno)
 {
         struct buffer_head *bh;
-        bh = getbuf(gl, blkno, CREATE);
+        bh = gfs2_getbuf(gl, blkno, CREATE);
         meta_prep_new(bh);
         return bh;
 }
@@ -223,7 +223,7 @@ struct buffer_head *gfs2_meta_new(struct gfs2_glock *gl, u64 blkno)
 int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags,
                    struct buffer_head **bhp)
 {
-        *bhp = getbuf(gl, blkno, CREATE);
+        *bhp = gfs2_getbuf(gl, blkno, CREATE);
         if (!buffer_uptodate(*bhp)) {
                 ll_rw_block(READ_META, 1, bhp);
                 if (flags & DIO_WAIT) {
@@ -346,7 +346,7 @@ void gfs2_meta_wipe(struct gfs2_inode *ip, u64 bstart, u32 blen)
         struct buffer_head *bh;
 
         while (blen) {
-                bh = getbuf(ip->i_gl, bstart, NO_CREATE);
+                bh = gfs2_getbuf(ip->i_gl, bstart, NO_CREATE);
                 if (bh) {
                         lock_buffer(bh);
                         gfs2_log_lock(sdp);
@@ -421,7 +421,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen)
         if (extlen > max_ra)
                 extlen = max_ra;
 
-        first_bh = getbuf(gl, dblock, CREATE);
+        first_bh = gfs2_getbuf(gl, dblock, CREATE);
 
         if (buffer_uptodate(first_bh))
                 goto out;
@@ -432,7 +432,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen)
         extlen--;
 
         while (extlen) {
-                bh = getbuf(gl, dblock, CREATE);
+                bh = gfs2_getbuf(gl, dblock, CREATE);
 
                 if (!buffer_uptodate(bh) && !buffer_locked(bh))
                         ll_rw_block(READA, 1, &bh);
diff --git a/fs/gfs2/meta_io.h b/fs/gfs2/meta_io.h
index 73e3b1c76fe..b1a5f3674d4 100644
--- a/fs/gfs2/meta_io.h
+++ b/fs/gfs2/meta_io.h
@@ -47,6 +47,7 @@ struct buffer_head *gfs2_meta_new(struct gfs2_glock *gl, u64 blkno);
 int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno,
                    int flags, struct buffer_head **bhp);
 int gfs2_meta_wait(struct gfs2_sbd *sdp, struct buffer_head *bh);
+struct buffer_head *gfs2_getbuf(struct gfs2_glock *gl, u64 blkno, int create);
 
 void gfs2_attach_bufdata(struct gfs2_glock *gl, struct buffer_head *bh,
                          int meta);
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index f55394e57cb..e64a1b04117 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -499,34 +499,34 @@ static int __gfs2_readpage(void *file, struct page *page)
  * @file: The file to read
  * @page: The page of the file
  *
- * This deals with the locking required. We use a trylock in order to
- * avoid the page lock / glock ordering problems returning AOP_TRUNCATED_PAGE
- * in the event that we are unable to get the lock.
+ * This deals with the locking required. We have to unlock and
+ * relock the page in order to get the locking in the right
+ * order.
  */
 
 static int gfs2_readpage(struct file *file, struct page *page)
 {
-        struct gfs2_inode *ip = GFS2_I(page->mapping->host);
-        struct gfs2_holder *gh;
+        struct address_space *mapping = page->mapping;
+        struct gfs2_inode *ip = GFS2_I(mapping->host);
+        struct gfs2_holder gh;
         int error;
 
-        gh = gfs2_glock_is_locked_by_me(ip->i_gl);
-        if (!gh) {
-                gh = kmalloc(sizeof(struct gfs2_holder), GFP_NOFS);
-                if (!gh)
-                        return -ENOBUFS;
-                gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME, gh);
+        unlock_page(page);
+        gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME, &gh);
+        error = gfs2_glock_nq_atime(&gh);
+        if (unlikely(error))
+                goto out;
+        error = AOP_TRUNCATED_PAGE;
+        lock_page(page);
+        if (page->mapping == mapping && !PageUptodate(page))
+                error = __gfs2_readpage(file, page);
+        else
                 unlock_page(page);
-                error = gfs2_glock_nq_atime(gh);
-                if (likely(error != 0))
-                        goto out;
-                return AOP_TRUNCATED_PAGE;
-        }
-        error = __gfs2_readpage(file, page);
-        gfs2_glock_dq(gh);
+        gfs2_glock_dq(&gh);
 out:
-        gfs2_holder_uninit(gh);
-        kfree(gh);
+        gfs2_holder_uninit(&gh);
+        if (error && error != AOP_TRUNCATED_PAGE)
+                lock_page(page);
         return error;
 }
 
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index 24dd5945008..e9a366d4411 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -15,6 +15,7 @@
 #include <linux/uio.h>
 #include <linux/blkdev.h>
 #include <linux/mm.h>
+#include <linux/mount.h>
 #include <linux/fs.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/ext2_fs.h>
@@ -133,7 +134,6 @@ static const u32 fsflags_to_gfs2[32] = {
         [7] = GFS2_DIF_NOATIME,
         [12] = GFS2_DIF_EXHASH,
         [14] = GFS2_DIF_INHERIT_JDATA,
-        [20] = GFS2_DIF_INHERIT_DIRECTIO,
 };
 
 static const u32 gfs2_to_fsflags[32] = {
@@ -142,7 +142,6 @@ static const u32 gfs2_to_fsflags[32] = {
         [gfs2fl_AppendOnly] = FS_APPEND_FL,
         [gfs2fl_NoAtime] = FS_NOATIME_FL,
         [gfs2fl_ExHash] = FS_INDEX_FL,
-        [gfs2fl_InheritDirectio] = FS_DIRECTIO_FL,
         [gfs2fl_InheritJdata] = FS_JOURNAL_DATA_FL,
 };
 
@@ -160,12 +159,8 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
                 return error;
 
         fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_di.di_flags);
-        if (!S_ISDIR(inode->i_mode)) {
-                if (ip->i_di.di_flags & GFS2_DIF_JDATA)
-                        fsflags |= FS_JOURNAL_DATA_FL;
-                if (ip->i_di.di_flags & GFS2_DIF_DIRECTIO)
-                        fsflags |= FS_DIRECTIO_FL;
-        }
+        if (!S_ISDIR(inode->i_mode) && ip->i_di.di_flags & GFS2_DIF_JDATA)
+                fsflags |= FS_JOURNAL_DATA_FL;
         if (put_user(fsflags, ptr))
                 error = -EFAULT;
 
@@ -194,13 +189,11 @@ void gfs2_set_inode_flags(struct inode *inode)
 
 /* Flags that can be set by user space */
 #define GFS2_FLAGS_USER_SET (GFS2_DIF_JDATA|                    \
-                             GFS2_DIF_DIRECTIO|                 \
                              GFS2_DIF_IMMUTABLE|                \
                              GFS2_DIF_APPENDONLY|               \
                              GFS2_DIF_NOATIME|                  \
                              GFS2_DIF_SYNC|                     \
                              GFS2_DIF_SYSTEM|                   \
-                             GFS2_DIF_INHERIT_DIRECTIO|         \
                              GFS2_DIF_INHERIT_JDATA)
 
 /**
@@ -220,10 +213,14 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
         int error;
         u32 new_flags, flags;
 
-        error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
+        error = mnt_want_write(filp->f_path.mnt);
         if (error)
                 return error;
 
+        error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
+        if (error)
+                goto out_drop_write;
+
         flags = ip->i_di.di_flags;
         new_flags = (flags & ~mask) | (reqflags & mask);
         if ((new_flags ^ flags) == 0)
@@ -242,7 +239,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
             !capable(CAP_LINUX_IMMUTABLE))
                 goto out;
         if (!IS_IMMUTABLE(inode)) {
-                error = permission(inode, MAY_WRITE, NULL);
+                error = gfs2_permission(inode, MAY_WRITE);
                 if (error)
                         goto out;
         }
@@ -272,6 +269,8 @@ out_trans_end:
         gfs2_trans_end(sdp);
 out:
         gfs2_glock_dq_uninit(&gh);
+out_drop_write:
+        mnt_drop_write(filp->f_path.mnt);
         return error;
 }
 
@@ -285,8 +284,6 @@ static int gfs2_set_flags(struct file *filp, u32 __user *ptr)
         if (!S_ISDIR(inode->i_mode)) {
                 if (gfsflags & GFS2_DIF_INHERIT_JDATA)
                         gfsflags ^= (GFS2_DIF_JDATA | GFS2_DIF_INHERIT_JDATA);
-                if (gfsflags & GFS2_DIF_INHERIT_DIRECTIO)
-                        gfsflags ^= (GFS2_DIF_DIRECTIO | GFS2_DIF_INHERIT_DIRECTIO);
                 return do_gfs2_set_flags(filp, gfsflags, ~0);
         }
         return do_gfs2_set_flags(filp, gfsflags, ~GFS2_DIF_JDATA);
@@ -487,11 +484,6 @@ static int gfs2_open(struct inode *inode, struct file *file)
                         goto fail_gunlock;
                 }
 
-                /* Listen to the Direct I/O flag */
-
-                if (ip->i_di.di_flags & GFS2_DIF_DIRECTIO)
-                        file->f_flags |= O_DIRECT;
-
                 gfs2_glock_dq_uninit(&i_gh);
         }
 
@@ -669,8 +661,7 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl)
         int error = 0;
 
         state = (fl->fl_type == F_WRLCK) ? LM_ST_EXCLUSIVE : LM_ST_SHARED;
-        flags = (IS_SETLKW(cmd) ? 0 : LM_FLAG_TRY) | GL_EXACT | GL_NOCACHE 
-                | GL_FLOCK;
+        flags = (IS_SETLKW(cmd) ? 0 : LM_FLAG_TRY) | GL_EXACT | GL_NOCACHE;
 
         mutex_lock(&fp->f_fl_mutex);
 
@@ -683,9 +674,8 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl)
                 gfs2_glock_dq_wait(fl_gh);
                 gfs2_holder_reinit(state, flags, fl_gh);
         } else {
-                error = gfs2_glock_get(GFS2_SB(&ip->i_inode),
-                                      ip->i_no_addr, &gfs2_flock_glops,
-                                      CREATE, &gl);
+                error = gfs2_glock_get(GFS2_SB(&ip->i_inode), ip->i_no_addr,
+                                       &gfs2_flock_glops, CREATE, &gl);
                 if (error)
                         goto out;
                 gfs2_holder_init(gl, state, flags, fl_gh);
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index b2028c82e8d..b4d1d649063 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -64,7 +64,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
         mutex_init(&sdp->sd_rindex_mutex);
         INIT_LIST_HEAD(&sdp->sd_rindex_list);
         INIT_LIST_HEAD(&sdp->sd_rindex_mru_list);
-        INIT_LIST_HEAD(&sdp->sd_rindex_recent_list);
 
         INIT_LIST_HEAD(&sdp->sd_jindex_list);
         spin_lock_init(&sdp->sd_jindex_spin);
@@ -364,6 +363,8 @@ static int map_journal_extents(struct gfs2_sbd *sdp)
 
 static void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp)
 {
+        if (!sdp->sd_lockstruct.ls_ops->lm_others_may_mount)
+                return;
         if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
                 sdp->sd_lockstruct.ls_ops->lm_others_may_mount(
                                         sdp->sd_lockstruct.ls_lockspace);
@@ -741,8 +742,7 @@ static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
                 goto out;
         }
 
-        if (gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lockspace) ||
-            gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_ops) ||
+        if (gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_ops) ||
             gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lvb_size >=
                                   GFS2_MIN_LVB_SIZE)) {
                 gfs2_unmount_lockproto(&sdp->sd_lockstruct);
@@ -873,7 +873,7 @@ fail_sb:
 fail_locking:
         init_locking(sdp, &mount_gh, UNDO);
 fail_lm:
-        gfs2_gl_hash_clear(sdp, WAIT);
+        gfs2_gl_hash_clear(sdp);
         gfs2_lm_unmount(sdp);
         while (invalidate_inodes(sb))
                 yield();
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 2686ad4c002..1e252dfc529 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -163,7 +163,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
         if (error)
                 goto out;
 
-        error = permission(dir, MAY_WRITE | MAY_EXEC, NULL);
+        error = gfs2_permission(dir, MAY_WRITE | MAY_EXEC);
         if (error)
                 goto out_gunlock;
 
@@ -669,7 +669,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
                         }
                 }
         } else {
-                error = permission(ndir, MAY_WRITE | MAY_EXEC, NULL);
+                error = gfs2_permission(ndir, MAY_WRITE | MAY_EXEC);
                 if (error)
                         goto out_gunlock;
 
@@ -704,7 +704,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
         /* Check out the dir to be renamed */
 
         if (dir_rename) {
-                error = permission(odentry->d_inode, MAY_WRITE, NULL);
+                error = gfs2_permission(odentry->d_inode, MAY_WRITE);
                 if (error)
                         goto out_gunlock;
         }
@@ -891,7 +891,7 @@ static void *gfs2_follow_link(struct dentry *dentry, struct nameidata *nd)
  * Returns: errno
  */
 
-static int gfs2_permission(struct inode *inode, int mask, struct nameidata *nd)
+int gfs2_permission(struct inode *inode, int mask)
 {
         struct gfs2_inode *ip = GFS2_I(inode);
         struct gfs2_holder i_gh;
@@ -905,13 +905,22 @@ static int gfs2_permission(struct inode *inode, int mask, struct nameidata *nd)
                 unlock = 1;
         }
 
-        error = generic_permission(inode, mask, gfs2_check_acl);
+        if ((mask & MAY_WRITE) && IS_IMMUTABLE(inode))
+                error = -EACCES;
+        else
+                error = generic_permission(inode, mask, gfs2_check_acl);
         if (unlock)
                 gfs2_glock_dq_uninit(&i_gh);
 
         return error;
 }
 
+static int gfs2_iop_permission(struct inode *inode, int mask,
+                               struct nameidata *nd)
+{
+        return gfs2_permission(inode, mask);
+}
+
 static int setattr_size(struct inode *inode, struct iattr *attr)
 {
         struct gfs2_inode *ip = GFS2_I(inode);
@@ -1141,7 +1150,7 @@ static int gfs2_removexattr(struct dentry *dentry, const char *name)
 }
 
 const struct inode_operations gfs2_file_iops = {
-        .permission = gfs2_permission,
+        .permission = gfs2_iop_permission,
         .setattr = gfs2_setattr,
         .getattr = gfs2_getattr,
         .setxattr = gfs2_setxattr,
@@ -1160,7 +1169,7 @@ const struct inode_operations gfs2_dir_iops = {
         .rmdir = gfs2_rmdir,
         .mknod = gfs2_mknod,
         .rename = gfs2_rename,
-        .permission = gfs2_permission,
+        .permission = gfs2_iop_permission,
         .setattr = gfs2_setattr,
         .getattr = gfs2_getattr,
         .setxattr = gfs2_setxattr,
@@ -1172,7 +1181,7 @@ const struct inode_operations gfs2_dir_iops = {
 const struct inode_operations gfs2_symlink_iops = {
         .readlink = gfs2_readlink,
         .follow_link = gfs2_follow_link,
-        .permission = gfs2_permission,
+        .permission = gfs2_iop_permission,
         .setattr = gfs2_setattr,
         .getattr = gfs2_getattr,
         .setxattr = gfs2_setxattr,
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index 0b7cc920eb8..f66ea0f7a35 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -126,7 +126,7 @@ static void gfs2_put_super(struct super_block *sb)
         gfs2_clear_rgrpd(sdp);
         gfs2_jindex_free(sdp);
         /*  Take apart glock structures and buffer lists  */
-        gfs2_gl_hash_clear(sdp, WAIT);
+        gfs2_gl_hash_clear(sdp);
         /*  Unmount the locking protocol  */
         gfs2_lm_unmount(sdp);
 
@@ -155,7 +155,7 @@ static void gfs2_write_super(struct super_block *sb)
 static int gfs2_sync_fs(struct super_block *sb, int wait)
 {
         sb->s_dirt = 0;
-        if (wait)
+        if (wait && sb->s_fs_info)
                 gfs2_log_flush(sb->s_fs_info, NULL);
         return 0;
 }
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 56aaf915c59..3e073f5144f 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -904,7 +904,7 @@ static int need_sync(struct gfs2_quota_data *qd)
                 do_sync = 0;
         else {
                 value *= gfs2_jindex_size(sdp) * num;
-                do_div(value, den);
+                value = div_s64(value, den);
                 value += (s64)be64_to_cpu(qd->qd_qb.qb_value);
                 if (value < (s64)be64_to_cpu(qd->qd_qb.qb_limit))
                         do_sync = 0;
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 2888e4b4b1c..d5e91f4f6a0 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -428,6 +428,9 @@ static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header_host *hea
 static void gfs2_lm_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
                                   unsigned int message)
 {
+        if (!sdp->sd_lockstruct.ls_ops->lm_recovery_done)
+                return;
+
         if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
                 sdp->sd_lockstruct.ls_ops->lm_recovery_done(
                         sdp->sd_lockstruct.ls_lockspace, jid, message);
@@ -505,7 +508,7 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
 
                 error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED,
                                            LM_FLAG_NOEXP | LM_FLAG_PRIORITY |
-                                           GL_NOCANCEL | GL_NOCACHE, &t_gh);
+                                           GL_NOCACHE, &t_gh);
                 if (error)
                         goto fail_gunlock_ji;
 
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 3401628d742..2d90fb25350 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -371,11 +371,6 @@ static void clear_rgrpdi(struct gfs2_sbd *sdp)
 
         spin_lock(&sdp->sd_rindex_spin);
         sdp->sd_rindex_forward = NULL;
-        head = &sdp->sd_rindex_recent_list;
-        while (!list_empty(head)) {
-                rgd = list_entry(head->next, struct gfs2_rgrpd, rd_recent);
-                list_del(&rgd->rd_recent);
-        }
         spin_unlock(&sdp->sd_rindex_spin);
 
         head = &sdp->sd_rindex_list;
@@ -945,107 +940,30 @@ static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked)
 }
 
 /**
- * recent_rgrp_first - get first RG from "recent" list
- * @sdp: The GFS2 superblock
- * @rglast: address of the rgrp used last
- *
- * Returns: The first rgrp in the recent list
- */
-
-static struct gfs2_rgrpd *recent_rgrp_first(struct gfs2_sbd *sdp,
-                                            u64 rglast)
-{
-        struct gfs2_rgrpd *rgd;
-
-        spin_lock(&sdp->sd_rindex_spin);
-
-        if (rglast) {
-                list_for_each_entry(rgd, &sdp->sd_rindex_recent_list, rd_recent) {
-                        if (rgrp_contains_block(rgd, rglast))
-                                goto out;
-                }
-        }
-        rgd = NULL;
-        if (!list_empty(&sdp->sd_rindex_recent_list))
-                rgd = list_entry(sdp->sd_rindex_recent_list.next,
-                                 struct gfs2_rgrpd, rd_recent);
-out:
-        spin_unlock(&sdp->sd_rindex_spin);
-        return rgd;
-}
-
-/**
  * recent_rgrp_next - get next RG from "recent" list
  * @cur_rgd: current rgrp
- * @remove:
  *
  * Returns: The next rgrp in the recent list
  */
 
-static struct gfs2_rgrpd *recent_rgrp_next(struct gfs2_rgrpd *cur_rgd,
-                                           int remove)
+static struct gfs2_rgrpd *recent_rgrp_next(struct gfs2_rgrpd *cur_rgd)
 {
         struct gfs2_sbd *sdp = cur_rgd->rd_sbd;
         struct list_head *head;
         struct gfs2_rgrpd *rgd;
 
         spin_lock(&sdp->sd_rindex_spin);
-
-        head = &sdp->sd_rindex_recent_list;
-
-        list_for_each_entry(rgd, head, rd_recent) {
-                if (rgd == cur_rgd) {
-                        if (cur_rgd->rd_recent.next != head)
-                                rgd = list_entry(cur_rgd->rd_recent.next,
-                                                 struct gfs2_rgrpd, rd_recent);
-                        else
-                                rgd = NULL;
-
-                        if (remove)
-                                list_del(&cur_rgd->rd_recent);
-
-                        goto out;
-                }
+        head = &sdp->sd_rindex_mru_list;
+        if (unlikely(cur_rgd->rd_list_mru.next == head)) {
+                spin_unlock(&sdp->sd_rindex_spin);
+                return NULL;
         }
-
-        rgd = NULL;
-        if (!list_empty(head))
-                rgd = list_entry(head->next, struct gfs2_rgrpd, rd_recent);
-
-out:
+        rgd = list_entry(cur_rgd->rd_list_mru.next, struct gfs2_rgrpd, rd_list_mru);
         spin_unlock(&sdp->sd_rindex_spin);
         return rgd;
 }
 
 /**
- * recent_rgrp_add - add an RG to tail of "recent" list
- * @new_rgd: The rgrp to add
- *
- */
-
-static void recent_rgrp_add(struct gfs2_rgrpd *new_rgd)
-{
-        struct gfs2_sbd *sdp = new_rgd->rd_sbd;
-        struct gfs2_rgrpd *rgd;
-        unsigned int count = 0;
-        unsigned int max = sdp->sd_rgrps / gfs2_jindex_size(sdp);
-
-        spin_lock(&sdp->sd_rindex_spin);
-
-        list_for_each_entry(rgd, &sdp->sd_rindex_recent_list, rd_recent) {
-                if (rgd == new_rgd)
-                        goto out;
-
-                if (++count >= max)
-                        goto out;
-        }
-        list_add_tail(&new_rgd->rd_recent, &sdp->sd_rindex_recent_list);
-
-out:
-        spin_unlock(&sdp->sd_rindex_spin);
-}
-
-/**
  * forward_rgrp_get - get an rgrp to try next from full list
  * @sdp: The GFS2 superblock
  *
@@ -1112,9 +1030,7 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
         int loops = 0;
         int error, rg_locked;
 
-        /* Try recently successful rgrps */
-
-        rgd = recent_rgrp_first(sdp, ip->i_goal);
+        rgd = gfs2_blk2rgrpd(sdp, ip->i_goal);
 
         while (rgd) {
                 rg_locked = 0;
@@ -1136,11 +1052,9 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
                                 gfs2_glock_dq_uninit(&al->al_rgd_gh);
                         if (inode)
                                 return inode;
-                        rgd = recent_rgrp_next(rgd, 1);
-                        break;
-
+                        /* fall through */
                 case GLR_TRYFAILED:
-                        rgd = recent_rgrp_next(rgd, 0);
+                        rgd = recent_rgrp_next(rgd);
                         break;
 
                 default:
@@ -1199,7 +1113,9 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
 
 out:
         if (begin) {
-                recent_rgrp_add(rgd);
+                spin_lock(&sdp->sd_rindex_spin);
+                list_move(&rgd->rd_list_mru, &sdp->sd_rindex_mru_list);
+                spin_unlock(&sdp->sd_rindex_spin);
                 rgd = gfs2_rgrpd_get_next(rgd);
                 if (!rgd)
                         rgd = gfs2_rgrpd_get_first(sdp);
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 7aeacbc65f3..63a8a902d9d 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -65,7 +65,6 @@ void gfs2_tune_init(struct gfs2_tune *gt)
         gt->gt_quota_quantum = 60;
         gt->gt_atime_quantum = 3600;
         gt->gt_new_files_jdata = 0;
-        gt->gt_new_files_directio = 0;
         gt->gt_max_readahead = 1 << 18;
         gt->gt_stall_secs = 600;
         gt->gt_complain_secs = 10;
@@ -941,8 +940,7 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp,
         }
 
         error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_DEFERRED,
-                               LM_FLAG_PRIORITY | GL_NOCACHE,
-                               t_gh);
+                                   GL_NOCACHE, t_gh);
 
         list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
                 error = gfs2_jdesc_check(jd);
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 9ab9fc85ecd..74846559fc3 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -110,18 +110,6 @@ static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf,
         return len;
 }
 
-static ssize_t shrink_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
-{
-        if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
-
-        if (simple_strtol(buf, NULL, 0) != 1)
-                return -EINVAL;
-
-        gfs2_gl_hash_clear(sdp, NO_WAIT);
-        return len;
-}
-
 static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf,
                                 size_t len)
 {
@@ -175,7 +163,6 @@ static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store)
 GFS2_ATTR(id,                  0444, id_show,       NULL);
 GFS2_ATTR(fsname,              0444, fsname_show,   NULL);
 GFS2_ATTR(freeze,              0644, freeze_show,   freeze_store);
-GFS2_ATTR(shrink,              0200, NULL,          shrink_store);
 GFS2_ATTR(withdraw,            0644, withdraw_show, withdraw_store);
 GFS2_ATTR(statfs_sync,         0200, NULL,          statfs_sync_store);
 GFS2_ATTR(quota_sync,          0200, NULL,          quota_sync_store);
@@ -186,7 +173,6 @@ static struct attribute *gfs2_attrs[] = {
         &gfs2_attr_id.attr,
         &gfs2_attr_fsname.attr,
         &gfs2_attr_freeze.attr,
-        &gfs2_attr_shrink.attr,
         &gfs2_attr_withdraw.attr,
         &gfs2_attr_statfs_sync.attr,
         &gfs2_attr_quota_sync.attr,
@@ -426,7 +412,6 @@ TUNE_ATTR(max_readahead, 0);
 TUNE_ATTR(complain_secs, 0);
 TUNE_ATTR(statfs_slow, 0);
 TUNE_ATTR(new_files_jdata, 0);
-TUNE_ATTR(new_files_directio, 0);
 TUNE_ATTR(quota_simul_sync, 1);
 TUNE_ATTR(quota_cache_secs, 1);
 TUNE_ATTR(stall_secs, 1);
@@ -455,7 +440,6 @@ static struct attribute *tune_attrs[] = {
         &tune_attr_quotad_secs.attr,
         &tune_attr_quota_scale.attr,
         &tune_attr_new_files_jdata.attr,
-        &tune_attr_new_files_directio.attr,
         NULL,
 };
 
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 6914598022c..91389c8aee8 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -688,7 +688,6 @@ void __jbd2_journal_drop_transaction(journal_t *journal, transaction_t *transact
 
         J_ASSERT(transaction->t_state == T_FINISHED);
         J_ASSERT(transaction->t_buffers == NULL);
-        J_ASSERT(transaction->t_sync_datalist == NULL);
         J_ASSERT(transaction->t_forget == NULL);
         J_ASSERT(transaction->t_iobuf_list == NULL);
         J_ASSERT(transaction->t_shadow_list == NULL);
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index a2ed72f7cee..f8b3be87322 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -22,6 +22,8 @@
 #include <linux/pagemap.h>
 #include <linux/jiffies.h>
 #include <linux/crc32.h>
+#include <linux/writeback.h>
+#include <linux/backing-dev.h>
 
 /*
  * Default IO end handler for temporary BJ_IO buffer_heads.
@@ -37,8 +39,8 @@ static void journal_end_buffer_io_sync(struct buffer_head *bh, int uptodate)
 }
 
 /*
- * When an ext3-ordered file is truncated, it is possible that many pages are
- * not sucessfully freed, because they are attached to a committing transaction.
+ * When an ext4 file is truncated, it is possible that some pages are not
+ * successfully freed, because they are attached to a committing transaction.
  * After the transaction commits, these pages are left on the LRU, with no
  * ->mapping, and with attached buffers.  These pages are trivially reclaimable
  * by the VM, but their apparent absence upsets the VM accounting, and it makes
@@ -80,21 +82,6 @@ nope:
 }
 
 /*
- * Try to acquire jbd_lock_bh_state() against the buffer, when j_list_lock is
- * held.  For ranking reasons we must trylock.  If we lose, schedule away and
- * return 0.  j_list_lock is dropped in this case.
- */
-static int inverted_lock(journal_t *journal, struct buffer_head *bh)
-{
-        if (!jbd_trylock_bh_state(bh)) {
-                spin_unlock(&journal->j_list_lock);
-                schedule();
-                return 0;
-        }
-        return 1;
-}
-
-/*
  * Done it all: now submit the commit record.  We should have
  * cleaned up our previous buffers by now, so if we are in abort
  * mode we can now just skip the rest of the journal write
@@ -112,6 +99,7 @@ static int journal_submit_commit_record(journal_t *journal,
         struct buffer_head *bh;
         int ret;
         int barrier_done = 0;
+        struct timespec now = current_kernel_time();
 
         if (is_journal_aborted(journal))
                 return 0;
@@ -126,6 +114,8 @@ static int journal_submit_commit_record(journal_t *journal,
         tmp->h_magic = cpu_to_be32(JBD2_MAGIC_NUMBER);
         tmp->h_blocktype = cpu_to_be32(JBD2_COMMIT_BLOCK);
         tmp->h_sequence = cpu_to_be32(commit_transaction->t_tid);
+        tmp->h_commit_sec = cpu_to_be64(now.tv_sec);
+        tmp->h_commit_nsec = cpu_to_be32(now.tv_nsec);
 
         if (JBD2_HAS_COMPAT_FEATURE(journal,
                                     JBD2_FEATURE_COMPAT_CHECKSUM)) {
@@ -197,159 +187,104 @@ static int journal_wait_on_commit_record(struct buffer_head *bh)
 }
 
 /*
- * Wait for all submitted IO to complete.
+ * write the filemap data using writepage() address_space_operations.
+ * We don't do block allocation here even for delalloc. We don't
+ * use writepages() because with dealyed allocation we may be doing
+ * block allocation in writepages().
  */
-static int journal_wait_on_locked_list(journal_t *journal,
-                                       transaction_t *commit_transaction)
+static int journal_submit_inode_data_buffers(struct address_space *mapping)
 {
-        int ret = 0;
-        struct journal_head *jh;
-
-        while (commit_transaction->t_locked_list) {
-                struct buffer_head *bh;
-
-                jh = commit_transaction->t_locked_list->b_tprev;
-                bh = jh2bh(jh);
-                get_bh(bh);
-                if (buffer_locked(bh)) {
-                        spin_unlock(&journal->j_list_lock);
-                        wait_on_buffer(bh);
-                        if (unlikely(!buffer_uptodate(bh)))
-                                ret = -EIO;
-                        spin_lock(&journal->j_list_lock);
-                }
-                if (!inverted_lock(journal, bh)) {
-                        put_bh(bh);
-                        spin_lock(&journal->j_list_lock);
-                        continue;
-                }
-                if (buffer_jbd(bh) && jh->b_jlist == BJ_Locked) {
-                        __jbd2_journal_unfile_buffer(jh);
-                        jbd_unlock_bh_state(bh);
-                        jbd2_journal_remove_journal_head(bh);
-                        put_bh(bh);
-                } else {
-                        jbd_unlock_bh_state(bh);
-                }
-                put_bh(bh);
-                cond_resched_lock(&journal->j_list_lock);
-        }
+        int ret;
+        struct writeback_control wbc = {
+                .sync_mode =  WB_SYNC_ALL,
+                .nr_to_write = mapping->nrpages * 2,
+                .range_start = 0,
+                .range_end = i_size_read(mapping->host),
+                .for_writepages = 1,
+        };
+
+        ret = generic_writepages(mapping, &wbc);
         return ret;
-  }
+}
 
-static void journal_do_submit_data(struct buffer_head **wbuf, int bufs)
+/*
+ * Submit all the data buffers of inode associated with the transaction to
+ * disk.
+ *
+ * We are in a committing transaction. Therefore no new inode can be added to
+ * our inode list. We use JI_COMMIT_RUNNING flag to protect inode we currently
+ * operate on from being released while we write out pages.
+ */
+static int journal_submit_data_buffers(journal_t *journal,
+                transaction_t *commit_transaction)
 {
-        int i;
+        struct jbd2_inode *jinode;
+        int err, ret = 0;
+        struct address_space *mapping;
 
-        for (i = 0; i < bufs; i++) {
-                wbuf[i]->b_end_io = end_buffer_write_sync;
-                /* We use-up our safety reference in submit_bh() */
-                submit_bh(WRITE, wbuf[i]);
+        spin_lock(&journal->j_list_lock);
+        list_for_each_entry(jinode, &commit_transaction->t_inode_list, i_list) {
+                mapping = jinode->i_vfs_inode->i_mapping;
+                jinode->i_flags |= JI_COMMIT_RUNNING;
+                spin_unlock(&journal->j_list_lock);
+                /*
+                 * submit the inode data buffers. We use writepage
+                 * instead of writepages. Because writepages can do
+                 * block allocation  with delalloc. We need to write
+                 * only allocated blocks here.
+                 */
+                err = journal_submit_inode_data_buffers(mapping);
+                if (!ret)
+                        ret = err;
+                spin_lock(&journal->j_list_lock);
+                J_ASSERT(jinode->i_transaction == commit_transaction);
+                jinode->i_flags &= ~JI_COMMIT_RUNNING;
+                wake_up_bit(&jinode->i_flags, __JI_COMMIT_RUNNING);
         }
+        spin_unlock(&journal->j_list_lock);
+        return ret;
 }
 
 /*
- *  Submit all the data buffers to disk
+ * Wait for data submitted for writeout, refile inodes to proper
+ * transaction if needed.
+ *
  */
-static void journal_submit_data_buffers(journal_t *journal,
-                                transaction_t *commit_transaction)
+static int journal_finish_inode_data_buffers(journal_t *journal,
+                transaction_t *commit_transaction)
 {
-        struct journal_head *jh;
-        struct buffer_head *bh;
-        int locked;
-        int bufs = 0;
-        struct buffer_head **wbuf = journal->j_wbuf;
+        struct jbd2_inode *jinode, *next_i;
+        int err, ret = 0;
 
-        /*
-         * Whenever we unlock the journal and sleep, things can get added
-         * onto ->t_sync_datalist, so we have to keep looping back to
-         * write_out_data until we *know* that the list is empty.
-         *
-         * Cleanup any flushed data buffers from the data list.  Even in
-         * abort mode, we want to flush this out as soon as possible.
-         */
-write_out_data:
-        cond_resched();
+        /* For locking, see the comment in journal_submit_data_buffers() */
         spin_lock(&journal->j_list_lock);
+        list_for_each_entry(jinode, &commit_transaction->t_inode_list, i_list) {
+                jinode->i_flags |= JI_COMMIT_RUNNING;
+                spin_unlock(&journal->j_list_lock);
+                err = filemap_fdatawait(jinode->i_vfs_inode->i_mapping);
+                if (!ret)
+                        ret = err;
+                spin_lock(&journal->j_list_lock);
+                jinode->i_flags &= ~JI_COMMIT_RUNNING;
+                wake_up_bit(&jinode->i_flags, __JI_COMMIT_RUNNING);
+        }
 
-        while (commit_transaction->t_sync_datalist) {
-                jh = commit_transaction->t_sync_datalist;
-                bh = jh2bh(jh);
-                locked = 0;
-
-                /* Get reference just to make sure buffer does not disappear
-                 * when we are forced to drop various locks */
-                get_bh(bh);
-                /* If the buffer is dirty, we need to submit IO and hence
-                 * we need the buffer lock. We try to lock the buffer without
-                 * blocking. If we fail, we need to drop j_list_lock and do
-                 * blocking lock_buffer().
-                 */
-                if (buffer_dirty(bh)) {
-                        if (test_set_buffer_locked(bh)) {
-                                BUFFER_TRACE(bh, "needs blocking lock");
-                                spin_unlock(&journal->j_list_lock);
-                                /* Write out all data to prevent deadlocks */
-                                journal_do_submit_data(wbuf, bufs);
-                                bufs = 0;
-                                lock_buffer(bh);
-                                spin_lock(&journal->j_list_lock);
-                        }
-                        locked = 1;
-                }
-                /* We have to get bh_state lock. Again out of order, sigh. */
-                if (!inverted_lock(journal, bh)) {
-                        jbd_lock_bh_state(bh);
-                        spin_lock(&journal->j_list_lock);
-                }
-                /* Someone already cleaned up the buffer? */
-                if (!buffer_jbd(bh)
-                        || jh->b_transaction != commit_transaction
-                        || jh->b_jlist != BJ_SyncData) {
-                        jbd_unlock_bh_state(bh);
-                        if (locked)
-                                unlock_buffer(bh);
-                        BUFFER_TRACE(bh, "already cleaned up");
-                        put_bh(bh);
-                        continue;
-                }
-                if (locked && test_clear_buffer_dirty(bh)) {
-                        BUFFER_TRACE(bh, "needs writeout, adding to array");
-                        wbuf[bufs++] = bh;
-                        __jbd2_journal_file_buffer(jh, commit_transaction,
-                                                BJ_Locked);
-                        jbd_unlock_bh_state(bh);
-                        if (bufs == journal->j_wbufsize) {
-                                spin_unlock(&journal->j_list_lock);
-                                journal_do_submit_data(wbuf, bufs);
-                                bufs = 0;
-                                goto write_out_data;
-                        }
-                } else if (!locked && buffer_locked(bh)) {
-                        __jbd2_journal_file_buffer(jh, commit_transaction,
-                                                BJ_Locked);
-                        jbd_unlock_bh_state(bh);
-                        put_bh(bh);
+        /* Now refile inode to proper lists */
+        list_for_each_entry_safe(jinode, next_i,
+                                 &commit_transaction->t_inode_list, i_list) {
+                list_del(&jinode->i_list);
+                if (jinode->i_next_transaction) {
+                        jinode->i_transaction = jinode->i_next_transaction;
+                        jinode->i_next_transaction = NULL;
+                        list_add(&jinode->i_list,
+                                &jinode->i_transaction->t_inode_list);
                 } else {
-                        BUFFER_TRACE(bh, "writeout complete: unfile");
-                        __jbd2_journal_unfile_buffer(jh);
-                        jbd_unlock_bh_state(bh);
-                        if (locked)
-                                unlock_buffer(bh);
-                        jbd2_journal_remove_journal_head(bh);
-                        /* Once for our safety reference, once for
-                         * jbd2_journal_remove_journal_head() */
-                        put_bh(bh);
-                        put_bh(bh);
-                }
-
-                if (need_resched() || spin_needbreak(&journal->j_list_lock)) {
-                        spin_unlock(&journal->j_list_lock);
-                        goto write_out_data;
+                        jinode->i_transaction = NULL;
                 }
         }
         spin_unlock(&journal->j_list_lock);
-        journal_do_submit_data(wbuf, bufs);
+
+        return ret;
 }
 
 static __u32 jbd2_checksum_data(__u32 crc32_sum, struct buffer_head *bh)
@@ -524,21 +459,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
          * Now start flushing things to disk, in the order they appear
          * on the transaction lists.  Data blocks go first.
          */
-        err = 0;
-        journal_submit_data_buffers(journal, commit_transaction);
-
-        /*
-         * Wait for all previously submitted IO to complete if commit
-         * record is to be written synchronously.
-         */
-        spin_lock(&journal->j_list_lock);
-        if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
-                JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT))
-                err = journal_wait_on_locked_list(journal,
-                                                commit_transaction);
-
-        spin_unlock(&journal->j_list_lock);
-
+        err = journal_submit_data_buffers(journal, commit_transaction);
         if (err)
                 jbd2_journal_abort(journal, err);
 
@@ -547,16 +468,6 @@ void jbd2_journal_commit_transaction(journal_t *journal)
         jbd_debug(3, "JBD: commit phase 2\n");
 
         /*
-         * If we found any dirty or locked buffers, then we should have
-         * looped back up to the write_out_data label.  If there weren't
-         * any then journal_clean_data_list should have wiped the list
-         * clean by now, so check that it is in fact empty.
-         */
-        J_ASSERT (commit_transaction->t_sync_datalist == NULL);
-
-        jbd_debug (3, "JBD: commit phase 3\n");
-
-        /*
          * Way to go: we have now written out all of the data for a
          * transaction!  Now comes the tricky part: we need to write out
          * metadata.  Loop over the transaction's entire buffer list:
@@ -574,6 +485,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
         J_ASSERT(commit_transaction->t_nr_buffers <=
                  commit_transaction->t_outstanding_credits);
 
+        err = 0;
         descriptor = NULL;
         bufs = 0;
         while (commit_transaction->t_buffers) {
@@ -748,15 +660,19 @@ start_journal_io:
                                                  &cbh, crc32_sum);
                 if (err)
                         __jbd2_journal_abort_hard(journal);
-
-                spin_lock(&journal->j_list_lock);
-                err = journal_wait_on_locked_list(journal,
-                                                commit_transaction);
-                spin_unlock(&journal->j_list_lock);
-                if (err)
-                        __jbd2_journal_abort_hard(journal);
         }
 
+        /*
+         * This is the right place to wait for data buffers both for ASYNC
+         * and !ASYNC commit. If commit is ASYNC, we need to wait only after
+         * the commit block went to disk (which happens above). If commit is
+         * SYNC, we need to wait for data buffers before we start writing
+         * commit block, which happens below in such setting.
+         */
+        err = journal_finish_inode_data_buffers(journal, commit_transaction);
+        if (err)
+                jbd2_journal_abort(journal, err);
+
         /* Lo and behold: we have just managed to send a transaction to
            the log.  Before we can commit it, wait for the IO so far to
            complete.  Control buffers being written are on the
@@ -768,7 +684,7 @@ start_journal_io:
            so we incur less scheduling load.
         */
 
-        jbd_debug(3, "JBD: commit phase 4\n");
+        jbd_debug(3, "JBD: commit phase 3\n");
 
         /*
          * akpm: these are BJ_IO, and j_list_lock is not needed.
@@ -827,7 +743,7 @@ wait_for_iobuf:
 
         J_ASSERT (commit_transaction->t_shadow_list == NULL);
 
-        jbd_debug(3, "JBD: commit phase 5\n");
+        jbd_debug(3, "JBD: commit phase 4\n");
 
         /* Here we wait for the revoke record and descriptor record buffers */
  wait_for_ctlbuf:
@@ -854,7 +770,7 @@ wait_for_iobuf:
                 /* AKPM: bforget here */
         }
 
-        jbd_debug(3, "JBD: commit phase 6\n");
+        jbd_debug(3, "JBD: commit phase 5\n");
 
         if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
                 JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)) {
@@ -874,9 +790,9 @@ wait_for_iobuf:
            transaction can be removed from any checkpoint list it was on
            before. */
 
-        jbd_debug(3, "JBD: commit phase 7\n");
+        jbd_debug(3, "JBD: commit phase 6\n");
 
-        J_ASSERT(commit_transaction->t_sync_datalist == NULL);
+        J_ASSERT(list_empty(&commit_transaction->t_inode_list));
         J_ASSERT(commit_transaction->t_buffers == NULL);
         J_ASSERT(commit_transaction->t_checkpoint_list == NULL);
         J_ASSERT(commit_transaction->t_iobuf_list == NULL);
@@ -997,7 +913,7 @@ restart_loop:
 
         /* Done with this transaction! */
 
-        jbd_debug(3, "JBD: commit phase 8\n");
+        jbd_debug(3, "JBD: commit phase 7\n");
 
         J_ASSERT(commit_transaction->t_state == T_COMMIT);
 
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 2e24567c4a7..b26c6d9fe6a 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -50,7 +50,6 @@ EXPORT_SYMBOL(jbd2_journal_unlock_updates);
 EXPORT_SYMBOL(jbd2_journal_get_write_access);
 EXPORT_SYMBOL(jbd2_journal_get_create_access);
 EXPORT_SYMBOL(jbd2_journal_get_undo_access);
-EXPORT_SYMBOL(jbd2_journal_dirty_data);
 EXPORT_SYMBOL(jbd2_journal_dirty_metadata);
 EXPORT_SYMBOL(jbd2_journal_release_buffer);
 EXPORT_SYMBOL(jbd2_journal_forget);
@@ -82,6 +81,10 @@ EXPORT_SYMBOL(jbd2_journal_blocks_per_page);
 EXPORT_SYMBOL(jbd2_journal_invalidatepage);
 EXPORT_SYMBOL(jbd2_journal_try_to_free_buffers);
 EXPORT_SYMBOL(jbd2_journal_force_commit);
+EXPORT_SYMBOL(jbd2_journal_file_inode);
+EXPORT_SYMBOL(jbd2_journal_init_jbd_inode);
+EXPORT_SYMBOL(jbd2_journal_release_jbd_inode);
+EXPORT_SYMBOL(jbd2_journal_begin_ordered_truncate);
 
 static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *);
 static void __journal_abort_soft (journal_t *journal, int errno);
@@ -2195,6 +2198,54 @@ void jbd2_journal_put_journal_head(struct journal_head *jh)
 }
 
 /*
+ * Initialize jbd inode head
+ */
+void jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode)
+{
+        jinode->i_transaction = NULL;
+        jinode->i_next_transaction = NULL;
+        jinode->i_vfs_inode = inode;
+        jinode->i_flags = 0;
+        INIT_LIST_HEAD(&jinode->i_list);
+}
+
+/*
+ * Function to be called before we start removing inode from memory (i.e.,
+ * clear_inode() is a fine place to be called from). It removes inode from
+ * transaction's lists.
+ */
+void jbd2_journal_release_jbd_inode(journal_t *journal,
+                                    struct jbd2_inode *jinode)
+{
+        int writeout = 0;
+
+        if (!journal)
+                return;
+restart:
+        spin_lock(&journal->j_list_lock);
+        /* Is commit writing out inode - we have to wait */
+        if (jinode->i_flags & JI_COMMIT_RUNNING) {
+                wait_queue_head_t *wq;
+                DEFINE_WAIT_BIT(wait, &jinode->i_flags, __JI_COMMIT_RUNNING);
+                wq = bit_waitqueue(&jinode->i_flags, __JI_COMMIT_RUNNING);
+                prepare_to_wait(wq, &wait.wait, TASK_UNINTERRUPTIBLE);
+                spin_unlock(&journal->j_list_lock);
+                schedule();
+                finish_wait(wq, &wait.wait);
+                goto restart;
+        }
+
+        /* Do we need to wait for data writeback? */
+        if (journal->j_committing_transaction == jinode->i_transaction)
+                writeout = 1;
+        if (jinode->i_transaction) {
+                list_del(&jinode->i_list);
+                jinode->i_transaction = NULL;
+        }
+        spin_unlock(&journal->j_list_lock);
+}
+
+/*
  * debugfs tunables
  */
 #ifdef CONFIG_JBD2_DEBUG
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index d6e006e6780..4f7cadbb19f 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -41,7 +41,6 @@ static void __jbd2_journal_temp_unlink_buffer(struct journal_head *jh);
  *      new transaction and we can't block without protecting against other
  *      processes trying to touch the journal while it is in transition.
  *
- * Called under j_state_lock
  */
 
 static transaction_t *
@@ -52,6 +51,7 @@ jbd2_get_transaction(journal_t *journal, transaction_t *transaction)
         transaction->t_tid = journal->j_transaction_sequence++;
         transaction->t_expires = jiffies + journal->j_commit_interval;
         spin_lock_init(&transaction->t_handle_lock);
+        INIT_LIST_HEAD(&transaction->t_inode_list);
 
         /* Set up the commit timer for the new transaction. */
         journal->j_commit_timer.expires = round_jiffies(transaction->t_expires);
@@ -943,183 +943,6 @@ out:
 }
 
 /**
- * int jbd2_journal_dirty_data() -  mark a buffer as containing dirty data which
- *                             needs to be flushed before we can commit the
- *                             current transaction.
- * @handle: transaction
- * @bh: bufferhead to mark
- *
- * The buffer is placed on the transaction's data list and is marked as
- * belonging to the transaction.
- *
- * Returns error number or 0 on success.
- *
- * jbd2_journal_dirty_data() can be called via page_launder->ext3_writepage
- * by kswapd.
- */
-int jbd2_journal_dirty_data(handle_t *handle, struct buffer_head *bh)
-{
-        journal_t *journal = handle->h_transaction->t_journal;
-        int need_brelse = 0;
-        struct journal_head *jh;
-
-        if (is_handle_aborted(handle))
-                return 0;
-
-        jh = jbd2_journal_add_journal_head(bh);
-        JBUFFER_TRACE(jh, "entry");
-
-        /*
-         * The buffer could *already* be dirty.  Writeout can start
-         * at any time.
-         */
-        jbd_debug(4, "jh: %p, tid:%d\n", jh, handle->h_transaction->t_tid);
-
-        /*
-         * What if the buffer is already part of a running transaction?
-         *
-         * There are two cases:
-         * 1) It is part of the current running transaction.  Refile it,
-         *    just in case we have allocated it as metadata, deallocated
-         *    it, then reallocated it as data.
-         * 2) It is part of the previous, still-committing transaction.
-         *    If all we want to do is to guarantee that the buffer will be
-         *    written to disk before this new transaction commits, then
-         *    being sure that the *previous* transaction has this same
-         *    property is sufficient for us!  Just leave it on its old
-         *    transaction.
-         *
-         * In case (2), the buffer must not already exist as metadata
-         * --- that would violate write ordering (a transaction is free
-         * to write its data at any point, even before the previous
-         * committing transaction has committed).  The caller must
-         * never, ever allow this to happen: there's nothing we can do
-         * about it in this layer.
-         */
-        jbd_lock_bh_state(bh);
-        spin_lock(&journal->j_list_lock);
-
-        /* Now that we have bh_state locked, are we really still mapped? */
-        if (!buffer_mapped(bh)) {
-                JBUFFER_TRACE(jh, "unmapped buffer, bailing out");
-                goto no_journal;
-        }
-
-        if (jh->b_transaction) {
-                JBUFFER_TRACE(jh, "has transaction");
-                if (jh->b_transaction != handle->h_transaction) {
-                        JBUFFER_TRACE(jh, "belongs to older transaction");
-                        J_ASSERT_JH(jh, jh->b_transaction ==
-                                        journal->j_committing_transaction);
-
-                        /* @@@ IS THIS TRUE  ? */
-                        /*
-                         * Not any more.  Scenario: someone does a write()
-                         * in data=journal mode.  The buffer's transaction has
-                         * moved into commit.  Then someone does another
-                         * write() to the file.  We do the frozen data copyout
-                         * and set b_next_transaction to point to j_running_t.
-                         * And while we're in that state, someone does a
-                         * writepage() in an attempt to pageout the same area
-                         * of the file via a shared mapping.  At present that
-                         * calls jbd2_journal_dirty_data(), and we get right here.
-                         * It may be too late to journal the data.  Simply
-                         * falling through to the next test will suffice: the
-                         * data will be dirty and wil be checkpointed.  The
-                         * ordering comments in the next comment block still
-                         * apply.
-                         */
-                        //J_ASSERT_JH(jh, jh->b_next_transaction == NULL);
-
-                        /*
-                         * If we're journalling data, and this buffer was
-                         * subject to a write(), it could be metadata, forget
-                         * or shadow against the committing transaction.  Now,
-                         * someone has dirtied the same darn page via a mapping
-                         * and it is being writepage()'d.
-                         * We *could* just steal the page from commit, with some
-                         * fancy locking there.  Instead, we just skip it -
-                         * don't tie the page's buffers to the new transaction
-                         * at all.
-                         * Implication: if we crash before the writepage() data
-                         * is written into the filesystem, recovery will replay
-                         * the write() data.
-                         */
-                        if (jh->b_jlist != BJ_None &&
-                                        jh->b_jlist != BJ_SyncData &&
-                                        jh->b_jlist != BJ_Locked) {
-                                JBUFFER_TRACE(jh, "Not stealing");
-                                goto no_journal;
-                        }
-
-                        /*
-                         * This buffer may be undergoing writeout in commit.  We
-                         * can't return from here and let the caller dirty it
-                         * again because that can cause the write-out loop in
-                         * commit to never terminate.
-                         */
-                        if (buffer_dirty(bh)) {
-                                get_bh(bh);
-                                spin_unlock(&journal->j_list_lock);
-                                jbd_unlock_bh_state(bh);
-                                need_brelse = 1;
-                                sync_dirty_buffer(bh);
-                                jbd_lock_bh_state(bh);
-                                spin_lock(&journal->j_list_lock);
-                                /* Since we dropped the lock... */
-                                if (!buffer_mapped(bh)) {
-                                        JBUFFER_TRACE(jh, "buffer got unmapped");
-                                        goto no_journal;
-                                }
-                                /* The buffer may become locked again at any
-                                   time if it is redirtied */
-                        }
-
-                        /* journal_clean_data_list() may have got there first */
-                        if (jh->b_transaction != NULL) {
-                                JBUFFER_TRACE(jh, "unfile from commit");
-                                __jbd2_journal_temp_unlink_buffer(jh);
-                                /* It still points to the committing
-                                 * transaction; move it to this one so
-                                 * that the refile assert checks are
-                                 * happy. */
-                                jh->b_transaction = handle->h_transaction;
-                        }
-                        /* The buffer will be refiled below */
-
-                }
-                /*
-                 * Special case --- the buffer might actually have been
-                 * allocated and then immediately deallocated in the previous,
-                 * committing transaction, so might still be left on that
-                 * transaction's metadata lists.
-                 */
-                if (jh->b_jlist != BJ_SyncData && jh->b_jlist != BJ_Locked) {
-                        JBUFFER_TRACE(jh, "not on correct data list: unfile");
-                        J_ASSERT_JH(jh, jh->b_jlist != BJ_Shadow);
-                        __jbd2_journal_temp_unlink_buffer(jh);
-                        jh->b_transaction = handle->h_transaction;
-                        JBUFFER_TRACE(jh, "file as data");
-                        __jbd2_journal_file_buffer(jh, handle->h_transaction,
-                                                BJ_SyncData);
-                }
-        } else {
-                JBUFFER_TRACE(jh, "not on a transaction");
-                __jbd2_journal_file_buffer(jh, handle->h_transaction, BJ_SyncData);
-        }
-no_journal:
-        spin_unlock(&journal->j_list_lock);
-        jbd_unlock_bh_state(bh);
-        if (need_brelse) {
-                BUFFER_TRACE(bh, "brelse");
-                __brelse(bh);
-        }
-        JBUFFER_TRACE(jh, "exit");
-        jbd2_journal_put_journal_head(jh);
-        return 0;
-}
-
-/**
  * int jbd2_journal_dirty_metadata() -  mark a buffer as containing dirty metadata
  * @handle: transaction to add buffer to.
  * @bh: buffer to mark
@@ -1541,10 +1364,10 @@ __blist_del_buffer(struct journal_head **list, struct journal_head *jh)
  * Remove a buffer from the appropriate transaction list.
  *
  * Note that this function can *change* the value of
- * bh->b_transaction->t_sync_datalist, t_buffers, t_forget,
- * t_iobuf_list, t_shadow_list, t_log_list or t_reserved_list.  If the caller
- * is holding onto a copy of one of thee pointers, it could go bad.
- * Generally the caller needs to re-read the pointer from the transaction_t.
+ * bh->b_transaction->t_buffers, t_forget, t_iobuf_list, t_shadow_list,
+ * t_log_list or t_reserved_list.  If the caller is holding onto a copy of one
+ * of these pointers, it could go bad.  Generally the caller needs to re-read
+ * the pointer from the transaction_t.
  *
  * Called under j_list_lock.  The journal may not be locked.
  */
@@ -1566,9 +1389,6 @@ void __jbd2_journal_temp_unlink_buffer(struct journal_head *jh)
         switch (jh->b_jlist) {
         case BJ_None:
                 return;
-        case BJ_SyncData:
-                list = &transaction->t_sync_datalist;
-                break;
         case BJ_Metadata:
                 transaction->t_nr_buffers--;
                 J_ASSERT_JH(jh, transaction->t_nr_buffers >= 0);
@@ -1589,9 +1409,6 @@ void __jbd2_journal_temp_unlink_buffer(struct journal_head *jh)
         case BJ_Reserved:
                 list = &transaction->t_reserved_list;
                 break;
-        case BJ_Locked:
-                list = &transaction->t_locked_list;
-                break;
         }
 
         __blist_del_buffer(list, jh);
@@ -1634,15 +1451,7 @@ __journal_try_to_free_buffer(journal_t *journal, struct buffer_head *bh)
                 goto out;
 
         spin_lock(&journal->j_list_lock);
-        if (jh->b_transaction != NULL && jh->b_cp_transaction == NULL) {
-                if (jh->b_jlist == BJ_SyncData || jh->b_jlist == BJ_Locked) {
-                        /* A written-back ordered data buffer */
-                        JBUFFER_TRACE(jh, "release data");
-                        __jbd2_journal_unfile_buffer(jh);
-                        jbd2_journal_remove_journal_head(bh);
-                        __brelse(bh);
-                }
-        } else if (jh->b_cp_transaction != NULL && jh->b_transaction == NULL) {
+        if (jh->b_cp_transaction != NULL && jh->b_transaction == NULL) {
                 /* written-back checkpointed metadata buffer */
                 if (jh->b_jlist == BJ_None) {
                         JBUFFER_TRACE(jh, "remove from checkpoint list");
@@ -1656,12 +1465,43 @@ out:
         return;
 }
 
+/*
+ * jbd2_journal_try_to_free_buffers() could race with
+ * jbd2_journal_commit_transaction(). The later might still hold the
+ * reference count to the buffers when inspecting them on
+ * t_syncdata_list or t_locked_list.
+ *
+ * jbd2_journal_try_to_free_buffers() will call this function to
+ * wait for the current transaction to finish syncing data buffers, before
+ * try to free that buffer.
+ *
+ * Called with journal->j_state_lock hold.
+ */
+static void jbd2_journal_wait_for_transaction_sync_data(journal_t *journal)
+{
+        transaction_t *transaction;
+        tid_t tid;
+
+        spin_lock(&journal->j_state_lock);
+        transaction = journal->j_committing_transaction;
+
+        if (!transaction) {
+                spin_unlock(&journal->j_state_lock);
+                return;
+        }
+
+        tid = transaction->t_tid;
+        spin_unlock(&journal->j_state_lock);
+        jbd2_log_wait_commit(journal, tid);
+}
 
 /**
  * int jbd2_journal_try_to_free_buffers() - try to free page buffers.
  * @journal: journal for operation
  * @page: to try and free
- * @unused_gfp_mask: unused
+ * @gfp_mask: we use the mask to detect how hard should we try to release
+ * buffers. If __GFP_WAIT and __GFP_FS is set, we wait for commit code to
+ * release the buffers.
  *
  *
  * For all the buffers on this page,
@@ -1690,9 +1530,11 @@ out:
  * journal_try_to_free_buffer() is changing its state.  But that
  * cannot happen because we never reallocate freed data as metadata
  * while the data is part of a transaction.  Yes?
+ *
+ * Return 0 on failure, 1 on success
  */
 int jbd2_journal_try_to_free_buffers(journal_t *journal,
-                                struct page *page, gfp_t unused_gfp_mask)
+                                struct page *page, gfp_t gfp_mask)
 {
         struct buffer_head *head;
         struct buffer_head *bh;
@@ -1708,7 +1550,8 @@ int jbd2_journal_try_to_free_buffers(journal_t *journal,
                 /*
                  * We take our own ref against the journal_head here to avoid
                  * having to add tons of locking around each instance of
-                 * jbd2_journal_remove_journal_head() and jbd2_journal_put_journal_head().
+                 * jbd2_journal_remove_journal_head() and
+                 * jbd2_journal_put_journal_head().
                  */
                 jh = jbd2_journal_grab_journal_head(bh);
                 if (!jh)
@@ -1721,7 +1564,28 @@ int jbd2_journal_try_to_free_buffers(journal_t *journal,
                 if (buffer_jbd(bh))
                         goto busy;
         } while ((bh = bh->b_this_page) != head);
+
         ret = try_to_free_buffers(page);
+
+        /*
+         * There are a number of places where jbd2_journal_try_to_free_buffers()
+         * could race with jbd2_journal_commit_transaction(), the later still
+         * holds the reference to the buffers to free while processing them.
+         * try_to_free_buffers() failed to free those buffers. Some of the
+         * caller of releasepage() request page buffers to be dropped, otherwise
+         * treat the fail-to-free as errors (such as generic_file_direct_IO())
+         *
+         * So, if the caller of try_to_release_page() wants the synchronous
+         * behaviour(i.e make sure buffers are dropped upon return),
+         * let's wait for the current transaction to finish flush of
+         * dirty data buffers, then try to free those buffers again,
+         * with the journal locked.
+         */
+        if (ret == 0 && (gfp_mask & __GFP_WAIT) && (gfp_mask & __GFP_FS)) {
+                jbd2_journal_wait_for_transaction_sync_data(journal);
+                ret = try_to_free_buffers(page);
+        }
+
 busy:
         return ret;
 }
@@ -1823,6 +1687,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh)
         if (!buffer_jbd(bh))
                 goto zap_buffer_unlocked;
 
+        /* OK, we have data buffer in journaled mode */
         spin_lock(&journal->j_state_lock);
         jbd_lock_bh_state(bh);
         spin_lock(&journal->j_list_lock);
@@ -1886,15 +1751,6 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh)
                 }
         } else if (transaction == journal->j_committing_transaction) {
                 JBUFFER_TRACE(jh, "on committing transaction");
-                if (jh->b_jlist == BJ_Locked) {
-                        /*
-                         * The buffer is on the committing transaction's locked
-                         * list.  We have the buffer locked, so I/O has
-                         * completed.  So we can nail the buffer now.
-                         */
-                        may_free = __dispose_buffer(jh, transaction);
-                        goto zap_buffer;
-                }
                 /*
                  * If it is committing, we simply cannot touch it.  We
                  * can remove it's next_transaction pointer from the
@@ -2027,9 +1883,6 @@ void __jbd2_journal_file_buffer(struct journal_head *jh,
                 J_ASSERT_JH(jh, !jh->b_committed_data);
                 J_ASSERT_JH(jh, !jh->b_frozen_data);
                 return;
-        case BJ_SyncData:
-                list = &transaction->t_sync_datalist;
-                break;
         case BJ_Metadata:
                 transaction->t_nr_buffers++;
                 list = &transaction->t_buffers;
@@ -2049,9 +1902,6 @@ void __jbd2_journal_file_buffer(struct journal_head *jh,
         case BJ_Reserved:
                 list = &transaction->t_reserved_list;
                 break;
-        case BJ_Locked:
-                list =  &transaction->t_locked_list;
-                break;
         }
 
         __blist_add_buffer(list, jh);
@@ -2141,3 +1991,88 @@ void jbd2_journal_refile_buffer(journal_t *journal, struct journal_head *jh)
         spin_unlock(&journal->j_list_lock);
         __brelse(bh);
 }
+
+/*
+ * File inode in the inode list of the handle's transaction
+ */
+int jbd2_journal_file_inode(handle_t *handle, struct jbd2_inode *jinode)
+{
+        transaction_t *transaction = handle->h_transaction;
+        journal_t *journal = transaction->t_journal;
+
+        if (is_handle_aborted(handle))
+                return -EIO;
+
+        jbd_debug(4, "Adding inode %lu, tid:%d\n", jinode->i_vfs_inode->i_ino,
+                        transaction->t_tid);
+
+        /*
+         * First check whether inode isn't already on the transaction's
+         * lists without taking the lock. Note that this check is safe
+         * without the lock as we cannot race with somebody removing inode
+         * from the transaction. The reason is that we remove inode from the
+         * transaction only in journal_release_jbd_inode() and when we commit
+         * the transaction. We are guarded from the first case by holding
+         * a reference to the inode. We are safe against the second case
+         * because if jinode->i_transaction == transaction, commit code
+         * cannot touch the transaction because we hold reference to it,
+         * and if jinode->i_next_transaction == transaction, commit code
+         * will only file the inode where we want it.
+         */
+        if (jinode->i_transaction == transaction ||
+            jinode->i_next_transaction == transaction)
+                return 0;
+
+        spin_lock(&journal->j_list_lock);
+
+        if (jinode->i_transaction == transaction ||
+            jinode->i_next_transaction == transaction)
+                goto done;
+
+        /* On some different transaction's list - should be
+         * the committing one */
+        if (jinode->i_transaction) {
+                J_ASSERT(jinode->i_next_transaction == NULL);
+                J_ASSERT(jinode->i_transaction ==
+                                        journal->j_committing_transaction);
+                jinode->i_next_transaction = transaction;
+                goto done;
+        }
+        /* Not on any transaction list... */
+        J_ASSERT(!jinode->i_next_transaction);
+        jinode->i_transaction = transaction;
+        list_add(&jinode->i_list, &transaction->t_inode_list);
+done:
+        spin_unlock(&journal->j_list_lock);
+
+        return 0;
+}
+
+/*
+ * This function must be called when inode is journaled in ordered mode
+ * before truncation happens. It starts writeout of truncated part in
+ * case it is in the committing transaction so that we stand to ordered
+ * mode consistency guarantees.
+ */
+int jbd2_journal_begin_ordered_truncate(struct jbd2_inode *inode,
+                                        loff_t new_size)
+{
+        journal_t *journal;
+        transaction_t *commit_trans;
+        int ret = 0;
+
+        if (!inode->i_transaction && !inode->i_next_transaction)
+                goto out;
+        journal = inode->i_transaction->t_journal;
+        spin_lock(&journal->j_state_lock);
+        commit_trans = journal->j_committing_transaction;
+        spin_unlock(&journal->j_state_lock);
+        if (inode->i_transaction == commit_trans) {
+                ret = filemap_fdatawrite_range(inode->i_vfs_inode->i_mapping,
+                        new_size, LLONG_MAX);
+                if (ret)
+                        jbd2_journal_abort(journal, ret);
+        }
+out:
+        return ret;
+}
diff --git a/fs/jfs/jfs_debug.c b/fs/jfs/jfs_debug.c
index bf6ab19b86e..6a73de84bce 100644
--- a/fs/jfs/jfs_debug.c
+++ b/fs/jfs/jfs_debug.c
@@ -21,6 +21,7 @@
 #include <linux/ctype.h>
 #include <linux/module.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <asm/uaccess.h>
 #include "jfs_incore.h"
 #include "jfs_filsys.h"
@@ -30,29 +31,19 @@
 
 static struct proc_dir_entry *base;
 #ifdef CONFIG_JFS_DEBUG
-static int loglevel_read(char *page, char **start, off_t off,
-                         int count, int *eof, void *data)
+static int jfs_loglevel_proc_show(struct seq_file *m, void *v)
 {
-        int len;
-
-        len = sprintf(page, "%d\n", jfsloglevel);
-
-        len -= off;
-        *start = page + off;
-
-        if (len > count)
-                len = count;
-        else
-                *eof = 1;
-
-        if (len < 0)
-                len = 0;
+        seq_printf(m, "%d\n", jfsloglevel);
+        return 0;
+}
 
-        return len;
+static int jfs_loglevel_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, jfs_loglevel_proc_show, NULL);
 }
 
-static int loglevel_write(struct file *file, const char __user *buffer,
-                        unsigned long count, void *data)
+static ssize_t jfs_loglevel_proc_write(struct file *file,
+                const char __user *buffer, size_t count, loff_t *ppos)
 {
         char c;
 
@@ -65,22 +56,30 @@ static int loglevel_write(struct file *file, const char __user *buffer,
         jfsloglevel = c - '0';
         return count;
 }
+
+static const struct file_operations jfs_loglevel_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = jfs_loglevel_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+        .write          = jfs_loglevel_proc_write,
+};
 #endif
 
 static struct {
         const char      *name;
-        read_proc_t     *read_fn;
-        write_proc_t    *write_fn;
+        const struct file_operations *proc_fops;
 } Entries[] = {
 #ifdef CONFIG_JFS_STATISTICS
-        { "lmstats",    jfs_lmstats_read, },
-        { "txstats",    jfs_txstats_read, },
-        { "xtstat",     jfs_xtstat_read, },
-        { "mpstat",     jfs_mpstat_read, },
+        { "lmstats",    &jfs_lmstats_proc_fops, },
+        { "txstats",    &jfs_txstats_proc_fops, },
+        { "xtstat",     &jfs_xtstat_proc_fops, },
+        { "mpstat",     &jfs_mpstat_proc_fops, },
 #endif
 #ifdef CONFIG_JFS_DEBUG
-        { "TxAnchor",   jfs_txanchor_read, },
-        { "loglevel",   loglevel_read, loglevel_write }
+        { "TxAnchor",   &jfs_txanchor_proc_fops, },
+        { "loglevel",   &jfs_loglevel_proc_fops }
 #endif
 };
 #define NPROCENT        ARRAY_SIZE(Entries)
@@ -93,13 +92,8 @@ void jfs_proc_init(void)
                 return;
         base->owner = THIS_MODULE;
 
-        for (i = 0; i < NPROCENT; i++) {
-                struct proc_dir_entry *p;
-                if ((p = create_proc_entry(Entries[i].name, 0, base))) {
-                        p->read_proc = Entries[i].read_fn;
-                        p->write_proc = Entries[i].write_fn;
-                }
-        }
+        for (i = 0; i < NPROCENT; i++)
+                proc_create(Entries[i].name, 0, base, Entries[i].proc_fops);
 }
 
 void jfs_proc_clean(void)
diff --git a/fs/jfs/jfs_debug.h b/fs/jfs/jfs_debug.h
index 044c1e654cc..eafd1300a00 100644
--- a/fs/jfs/jfs_debug.h
+++ b/fs/jfs/jfs_debug.h
@@ -62,7 +62,7 @@ extern void jfs_proc_clean(void);
 
 extern int jfsloglevel;
 
-extern int jfs_txanchor_read(char *, char **, off_t, int, int *, void *);
+extern const struct file_operations jfs_txanchor_proc_fops;
 
 /* information message: e.g., configuration, major event */
 #define jfs_info(fmt, arg...) do {                      \
@@ -105,10 +105,10 @@ extern int jfs_txanchor_read(char *, char **, off_t, int, int *, void *);
  *      ----------
  */
 #ifdef  CONFIG_JFS_STATISTICS
-extern int jfs_lmstats_read(char *, char **, off_t, int, int *, void *);
-extern int jfs_txstats_read(char *, char **, off_t, int, int *, void *);
-extern int jfs_mpstat_read(char *, char **, off_t, int, int *, void *);
-extern int jfs_xtstat_read(char *, char **, off_t, int, int *, void *);
+extern const struct file_operations jfs_lmstats_proc_fops;
+extern const struct file_operations jfs_txstats_proc_fops;
+extern const struct file_operations jfs_mpstat_proc_fops;
+extern const struct file_operations jfs_xtstat_proc_fops;
 
 #define INCREMENT(x)            ((x)++)
 #define DECREMENT(x)            ((x)--)
diff --git a/fs/jfs/jfs_dtree.h b/fs/jfs/jfs_dtree.h
index cdac2d5bafe..2545bb31723 100644
--- a/fs/jfs/jfs_dtree.h
+++ b/fs/jfs/jfs_dtree.h
@@ -243,9 +243,6 @@ typedef union {
 #define JFS_REMOVE 3
 #define JFS_RENAME 4
 
-#define DIRENTSIZ(namlen) \
-    ( (sizeof(struct dirent) - 2*(JFS_NAME_MAX+1) + 2*((namlen)+1) + 3) &~ 3 )
-
 /*
  * Maximum file offset for directories.
  */
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 734ec916bea..d6363d8309d 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -1520,7 +1520,7 @@ int diAlloc(struct inode *pip, bool dir, struct inode *ip)
                                         jfs_error(ip->i_sb,
                                                   "diAlloc: can't find free bit "
                                                   "in wmap");
-                                        return EIO;
+                                        return -EIO;
                                 }
 
                                 /* determine the inode number within the
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 325a9679b95..cd2ec2988b5 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -69,6 +69,7 @@
 #include <linux/freezer.h>
 #include <linux/delay.h>
 #include <linux/mutex.h>
+#include <linux/seq_file.h>
 #include "jfs_incore.h"
 #include "jfs_filsys.h"
 #include "jfs_metapage.h"
@@ -2503,13 +2504,9 @@ exit:
 }
 
 #ifdef CONFIG_JFS_STATISTICS
-int jfs_lmstats_read(char *buffer, char **start, off_t offset, int length,
-                      int *eof, void *data)
+static int jfs_lmstats_proc_show(struct seq_file *m, void *v)
 {
-        int len = 0;
-        off_t begin;
-
-        len += sprintf(buffer,
+        seq_printf(m,
                        "JFS Logmgr stats\n"
                        "================\n"
                        "commits = %d\n"
@@ -2522,19 +2519,19 @@ int jfs_lmstats_read(char *buffer, char **start, off_t offset, int length,
                        lmStat.pagedone,
                        lmStat.full_page,
                        lmStat.partial_page);
+        return 0;
+}
 
-        begin = offset;
-        *start = buffer + begin;
-        len -= begin;
-
-        if (len > length)
-                len = length;
-        else
-                *eof = 1;
-
-        if (len < 0)
-                len = 0;
-
-        return len;
+static int jfs_lmstats_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, jfs_lmstats_proc_show, NULL);
 }
+
+const struct file_operations jfs_lmstats_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = jfs_lmstats_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
 #endif /* CONFIG_JFS_STATISTICS */
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index d1e64f2f2fc..854ff0ec574 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -19,10 +19,12 @@
 
 #include <linux/fs.h>
 #include <linux/mm.h>
+#include <linux/module.h>
 #include <linux/bio.h>
 #include <linux/init.h>
 #include <linux/buffer_head.h>
 #include <linux/mempool.h>
+#include <linux/seq_file.h>
 #include "jfs_incore.h"
 #include "jfs_superblock.h"
 #include "jfs_filsys.h"
@@ -804,13 +806,9 @@ void __invalidate_metapages(struct inode *ip, s64 addr, int len)
 }
 
 #ifdef CONFIG_JFS_STATISTICS
-int jfs_mpstat_read(char *buffer, char **start, off_t offset, int length,
-                    int *eof, void *data)
+static int jfs_mpstat_proc_show(struct seq_file *m, void *v)
 {
-        int len = 0;
-        off_t begin;
-
-        len += sprintf(buffer,
+        seq_printf(m,
                        "JFS Metapage statistics\n"
                        "=======================\n"
                        "page allocations = %d\n"
@@ -819,19 +817,19 @@ int jfs_mpstat_read(char *buffer, char **start, off_t offset, int length,
                        mpStat.pagealloc,
                        mpStat.pagefree,
                        mpStat.lockwait);
+        return 0;
+}
 
-        begin = offset;
-        *start = buffer + begin;
-        len -= begin;
-
-        if (len > length)
-                len = length;
-        else
-                *eof = 1;
-
-        if (len < 0)
-                len = 0;
-
-        return len;
+static int jfs_mpstat_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, jfs_mpstat_proc_show, NULL);
 }
+
+const struct file_operations jfs_mpstat_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = jfs_mpstat_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
 #endif
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index e7c60ae6b5b..f26e4d03ada 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -49,6 +49,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/kthread.h>
+#include <linux/seq_file.h>
 #include "jfs_incore.h"
 #include "jfs_inode.h"
 #include "jfs_filsys.h"
@@ -3009,11 +3010,8 @@ int jfs_sync(void *arg)
 }
 
 #if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_DEBUG)
-int jfs_txanchor_read(char *buffer, char **start, off_t offset, int length,
-                      int *eof, void *data)
+static int jfs_txanchor_proc_show(struct seq_file *m, void *v)
 {
-        int len = 0;
-        off_t begin;
         char *freewait;
         char *freelockwait;
         char *lowlockwait;
@@ -3025,7 +3023,7 @@ int jfs_txanchor_read(char *buffer, char **start, off_t offset, int length,
         lowlockwait =
             waitqueue_active(&TxAnchor.lowlockwait) ? "active" : "empty";
 
-        len += sprintf(buffer,
+        seq_printf(m,
                        "JFS TxAnchor\n"
                        "============\n"
                        "freetid = %d\n"
@@ -3044,31 +3042,27 @@ int jfs_txanchor_read(char *buffer, char **start, off_t offset, int length,
                        TxAnchor.tlocksInUse,
                        jfs_tlocks_low,
                        list_empty(&TxAnchor.unlock_queue) ? "" : "not ");
+        return 0;
+}
 
-        begin = offset;
-        *start = buffer + begin;
-        len -= begin;
-
-        if (len > length)
-                len = length;
-        else
-                *eof = 1;
-
-        if (len < 0)
-                len = 0;
-
-        return len;
+static int jfs_txanchor_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, jfs_txanchor_proc_show, NULL);
 }
+
+const struct file_operations jfs_txanchor_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = jfs_txanchor_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
 #endif
 
 #if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_STATISTICS)
-int jfs_txstats_read(char *buffer, char **start, off_t offset, int length,
-                     int *eof, void *data)
+static int jfs_txstats_proc_show(struct seq_file *m, void *v)
 {
-        int len = 0;
-        off_t begin;
-
-        len += sprintf(buffer,
+        seq_printf(m,
                        "JFS TxStats\n"
                        "===========\n"
                        "calls to txBegin = %d\n"
@@ -3089,19 +3083,19 @@ int jfs_txstats_read(char *buffer, char **start, off_t offset, int length,
                        TxStat.txBeginAnon_lockslow,
                        TxStat.txLockAlloc,
                        TxStat.txLockAlloc_freelock);
+        return 0;
+}
 
-        begin = offset;
-        *start = buffer + begin;
-        len -= begin;
-
-        if (len > length)
-                len = length;
-        else
-                *eof = 1;
-
-        if (len < 0)
-                len = 0;
-
-        return len;
+static int jfs_txstats_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, jfs_txstats_proc_show, NULL);
 }
+
+const struct file_operations jfs_txstats_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = jfs_txstats_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
 #endif
diff --git a/fs/jfs/jfs_xtree.c b/fs/jfs/jfs_xtree.c
index 5a61ebf2cbc..ae3acafb447 100644
--- a/fs/jfs/jfs_xtree.c
+++ b/fs/jfs/jfs_xtree.c
@@ -20,7 +20,9 @@
  */
 
 #include <linux/fs.h>
+#include <linux/module.h>
 #include <linux/quotaops.h>
+#include <linux/seq_file.h>
 #include "jfs_incore.h"
 #include "jfs_filsys.h"
 #include "jfs_metapage.h"
@@ -4134,13 +4136,9 @@ s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
 }
 
 #ifdef CONFIG_JFS_STATISTICS
-int jfs_xtstat_read(char *buffer, char **start, off_t offset, int length,
-                    int *eof, void *data)
+static int jfs_xtstat_proc_show(struct seq_file *m, void *v)
 {
-        int len = 0;
-        off_t begin;
-
-        len += sprintf(buffer,
+        seq_printf(m,
                        "JFS Xtree statistics\n"
                        "====================\n"
                        "searches = %d\n"
@@ -4149,19 +4147,19 @@ int jfs_xtstat_read(char *buffer, char **start, off_t offset, int length,
                        xtStat.search,
                        xtStat.fastSearch,
                        xtStat.split);
+        return 0;
+}
 
-        begin = offset;
-        *start = buffer + begin;
-        len -= begin;
-
-        if (len > length)
-                len = length;
-        else
-                *eof = 1;
-
-        if (len < 0)
-                len = 0;
-
-        return len;
+static int jfs_xtstat_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, jfs_xtstat_proc_show, NULL);
 }
+
+const struct file_operations jfs_xtstat_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = jfs_xtstat_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
 #endif
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 0ba6778edaa..2aba8238681 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1455,7 +1455,7 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
                 free_UCSname(&key);
                 if (rc == -ENOENT) {
                         d_add(dentry, NULL);
-                        return ERR_PTR(0);
+                        return NULL;
                 } else if (rc) {
                         jfs_err("jfs_lookup: dtSearch returned %d", rc);
                         return ERR_PTR(rc);
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 50ea6545173..0288e6d7936 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -499,7 +499,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
         inode = jfs_iget(sb, ROOT_I);
         if (IS_ERR(inode)) {
                 ret = PTR_ERR(inode);
-                goto out_no_root;
+                goto out_no_rw;
         }
         sb->s_root = d_alloc_root(inode);
         if (!sb->s_root)
@@ -521,9 +521,8 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
         return 0;
 
 out_no_root:
-        jfs_err("jfs_read_super: get root inode failed");
-        if (inode)
-                iput(inode);
+        jfs_err("jfs_read_super: get root dentry failed");
+        iput(inode);
 
 out_no_rw:
         rc = jfs_umount(sb);
diff --git a/fs/mpage.c b/fs/mpage.c
index 235e4d3873a..dbcc7af76a1 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -82,7 +82,7 @@ static void mpage_end_io_write(struct bio *bio, int err)
         bio_put(bio);
 }
 
-static struct bio *mpage_bio_submit(int rw, struct bio *bio)
+struct bio *mpage_bio_submit(int rw, struct bio *bio)
 {
         bio->bi_end_io = mpage_end_io_read;
         if (rw == WRITE)
@@ -90,6 +90,7 @@ static struct bio *mpage_bio_submit(int rw, struct bio *bio)
         submit_bio(rw, bio);
         return NULL;
 }
+EXPORT_SYMBOL(mpage_bio_submit);
 
 static struct bio *
 mpage_alloc(struct block_device *bdev,
@@ -435,15 +436,9 @@ EXPORT_SYMBOL(mpage_readpage);
  * written, so it can intelligently allocate a suitably-sized BIO.  For now,
  * just allocate full-size (16-page) BIOs.
  */
-struct mpage_data {
-        struct bio *bio;
-        sector_t last_block_in_bio;
-        get_block_t *get_block;
-        unsigned use_writepage;
-};
 
-static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
-                             void *data)
+int __mpage_writepage(struct page *page, struct writeback_control *wbc,
+                      void *data)
 {
         struct mpage_data *mpd = data;
         struct bio *bio = mpd->bio;
@@ -651,6 +646,7 @@ out:
         mpd->bio = bio;
         return ret;
 }
+EXPORT_SYMBOL(__mpage_writepage);
 
 /**
  * mpage_writepages - walk the list of dirty pages of the given address space & writepage() all of them
diff --git a/include/asm-alpha/smp.h b/include/asm-alpha/smp.h
index 286e1d844f6..544c69af816 100644
--- a/include/asm-alpha/smp.h
+++ b/include/asm-alpha/smp.h
@@ -47,12 +47,13 @@ extern struct cpuinfo_alpha cpu_data[NR_CPUS];
 extern int smp_num_cpus;
 #define cpu_possible_map        cpu_present_map
 
-int smp_call_function_on_cpu(void (*func) (void *info), void *info,int retry, int wait, cpumask_t cpu);
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
 
 #else /* CONFIG_SMP */
 
 #define hard_smp_processor_id()         0
-#define smp_call_function_on_cpu(func,info,retry,wait,cpu)    ({ 0; })
+#define smp_call_function_on_cpu(func,info,wait,cpu)    ({ 0; })
 
 #endif /* CONFIG_SMP */
 
diff --git a/include/asm-arm/smp.h b/include/asm-arm/smp.h
index af99636db40..7fffa2404b8 100644
--- a/include/asm-arm/smp.h
+++ b/include/asm-arm/smp.h
@@ -101,6 +101,9 @@ extern void platform_cpu_die(unsigned int cpu);
 extern int platform_cpu_kill(unsigned int cpu);
 extern void platform_cpu_enable(unsigned int cpu);
 
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
 /*
  * Local timer interrupt handling function (can be IPI'ed).
  */
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 4fce3db2cec..ef87f889ef6 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -195,7 +195,6 @@ static inline int pmd_none_or_clear_bad(pmd_t *pmd)
         }
         return 0;
 }
-#endif /* CONFIG_MMU */
 
 static inline pte_t __ptep_modify_prot_start(struct mm_struct *mm,
                                              unsigned long addr,
@@ -253,6 +252,7 @@ static inline void ptep_modify_prot_commit(struct mm_struct *mm,
         __ptep_modify_prot_commit(mm, addr, ptep, pte);
 }
 #endif /* __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION */
+#endif /* CONFIG_MMU */
 
 /*
  * A facility to provide lazy MMU batching.  This allows PTE updates and
diff --git a/include/asm-ia64/smp.h b/include/asm-ia64/smp.h
index ec5f355fb7e..27731e032ee 100644
--- a/include/asm-ia64/smp.h
+++ b/include/asm-ia64/smp.h
@@ -38,9 +38,6 @@ ia64_get_lid (void)
         return lid.f.id << 8 | lid.f.eid;
 }
 
-extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
-                                  void *info, int wait);
-
 #define hard_smp_processor_id()         ia64_get_lid()
 
 #ifdef CONFIG_SMP
@@ -124,11 +121,12 @@ extern void __init init_smp_config (void);
 extern void smp_do_timer (struct pt_regs *regs);
 
 extern void smp_send_reschedule (int cpu);
-extern void lock_ipi_calllock(void);
-extern void unlock_ipi_calllock(void);
 extern void identify_siblings (struct cpuinfo_ia64 *);
 extern int is_multithreading_enabled(void);
 
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
 #else /* CONFIG_SMP */
 
 #define cpu_logical_id(i)               0
diff --git a/include/asm-m32r/smp.h b/include/asm-m32r/smp.h
index 078e1a51a04..c5dd6691669 100644
--- a/include/asm-m32r/smp.h
+++ b/include/asm-m32r/smp.h
@@ -89,6 +89,9 @@ static __inline__ unsigned int num_booting_cpus(void)
 extern void smp_send_timer(void);
 extern unsigned long send_IPI_mask_phys(cpumask_t, int, int);
 
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
 #endif  /* not __ASSEMBLY__ */
 
 #define NO_PROC_ID (0xff)       /* No processor magic marker */
@@ -104,6 +107,7 @@ extern unsigned long send_IPI_mask_phys(cpumask_t, int, int);
 #define LOCAL_TIMER_IPI         (M32R_IRQ_IPI3-M32R_IRQ_IPI0)
 #define INVALIDATE_CACHE_IPI    (M32R_IRQ_IPI4-M32R_IRQ_IPI0)
 #define CPU_BOOT_IPI            (M32R_IRQ_IPI5-M32R_IRQ_IPI0)
+#define CALL_FUNC_SINGLE_IPI    (M32R_IRQ_IPI6-M32R_IRQ_IPI0)
 
 #define IPI_SHIFT       (0)
 #define NR_IPIS         (8)
diff --git a/include/asm-mips/barrier.h b/include/asm-mips/barrier.h
index 9d8cfbb5e79..8e9ac313ca3 100644
--- a/include/asm-mips/barrier.h
+++ b/include/asm-mips/barrier.h
@@ -92,11 +92,25 @@
 #define fast_wmb()      __sync()
 #define fast_rmb()      __sync()
 #define fast_mb()       __sync()
+#ifdef CONFIG_SGI_IP28
+#define fast_iob()                              \
+        __asm__ __volatile__(                   \
+                ".set   push\n\t"               \
+                ".set   noreorder\n\t"          \
+                "lw     $0,%0\n\t"              \
+                "sync\n\t"                      \
+                "lw     $0,%0\n\t"              \
+                ".set   pop"                    \
+                : /* no output */               \
+                : "m" (*(int *)CKSEG1ADDR(0x1fa00004)) \
+                : "memory")
+#else
 #define fast_iob()                              \
         do {                                    \
                 __sync();                       \
                 __fast_iob();                   \
         } while (0)
+#endif
 
 #ifdef CONFIG_CPU_HAS_WB
 
diff --git a/include/asm-mips/bitops.h b/include/asm-mips/bitops.h
index 642724734eb..9a7274ba6a0 100644
--- a/include/asm-mips/bitops.h
+++ b/include/asm-mips/bitops.h
@@ -82,7 +82,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
                 "2:     b       1b                                      \n"
                 "       .previous                                       \n"
                 : "=&r" (temp), "=m" (*m)
-                : "ir" (bit), "m" (*m), "r" (~0));
+                : "i" (bit), "m" (*m), "r" (~0));
 #endif /* CONFIG_CPU_MIPSR2 */
         } else if (cpu_has_llsc) {
                 __asm__ __volatile__(
@@ -147,7 +147,7 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
                 "2:     b       1b                                      \n"
                 "       .previous                                       \n"
                 : "=&r" (temp), "=m" (*m)
-                : "ir" (bit), "m" (*m));
+                : "i" (bit), "m" (*m));
 #endif /* CONFIG_CPU_MIPSR2 */
         } else if (cpu_has_llsc) {
                 __asm__ __volatile__(
@@ -428,7 +428,7 @@ static inline int test_and_clear_bit(unsigned long nr,
                 "2:     b       1b                                      \n"
                 "       .previous                                       \n"
                 : "=&r" (temp), "=m" (*m), "=&r" (res)
-                : "ri" (bit), "m" (*m)
+                : "i" (bit), "m" (*m)
                 : "memory");
 #endif
         } else if (cpu_has_llsc) {
diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h
index e031bdff992..d39e143b4a3 100644
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -26,13 +26,6 @@
 #define  MACH_UNKNOWN           0       /* whatever...                  */
 
 /*
- * Valid machtype values for group JAZZ
- */
-#define  MACH_ACER_PICA_61      0       /* Acer PICA-61 (PICA1)         */
-#define  MACH_MIPS_MAGNUM_4000  1       /* Mips Magnum 4000 "RC4030"    */
-#define  MACH_OLIVETTI_M700     2       /* Olivetti M700-10 (-15 ??)    */
-
-/*
  * Valid machtype for group DEC
  */
 #define  MACH_DSUNKNOWN         0
@@ -48,42 +41,6 @@
 #define  MACH_DS5900            10      /* DECsystem 5900               */
 
 /*
- * Valid machtype for group SNI_RM
- */
-#define  MACH_SNI_RM200_PCI     0       /* RM200/RM300/RM400 PCI series */
-
-/*
- * Valid machtype for group SGI
- */
-#define  MACH_SGI_IP22          0       /* Indy, Indigo2, Challenge S   */
-#define  MACH_SGI_IP27          1       /* Origin 200, Origin 2000, Onyx 2 */
-#define  MACH_SGI_IP28          2       /* Indigo2 Impact               */
-#define  MACH_SGI_IP32          3       /* O2                           */
-#define  MACH_SGI_IP30          4       /* Octane, Octane2              */
-
-/*
- * Valid machtypes for group Toshiba
- */
-#define  MACH_PALLAS            0
-#define  MACH_TOPAS             1
-#define  MACH_JMR               2
-#define  MACH_TOSHIBA_JMR3927   3       /* JMR-TX3927 CPU/IO board */
-#define  MACH_TOSHIBA_RBTX4927  4
-#define  MACH_TOSHIBA_RBTX4937  5
-#define  MACH_TOSHIBA_RBTX4938  6
-
-/*
- * Valid machtype for group LASAT
- */
-#define  MACH_LASAT_100         0       /* Masquerade II/SP100/SP50/SP25 */
-#define  MACH_LASAT_200         1       /* Masquerade PRO/SP200 */
-
-/*
- * Valid machtype for group NEC EMMA2RH
- */
-#define  MACH_NEC_MARKEINS      0       /* NEC EMMA2RH Mark-eins        */
-
-/*
  * Valid machtype for group PMC-MSP
  */
 #define MACH_MSP4200_EVAL       0       /* PMC-Sierra MSP4200 Evaluation */
diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h
index 1c35cac6f35..229a786101d 100644
--- a/include/asm-mips/cpu.h
+++ b/include/asm-mips/cpu.h
@@ -66,8 +66,10 @@
 #define PRID_IMP_RM7000         0x2700
 #define PRID_IMP_NEVADA         0x2800          /* RM5260 ??? */
 #define PRID_IMP_RM9000         0x3400
+#define PRID_IMP_LOONGSON1      0x4200
 #define PRID_IMP_R5432          0x5400
 #define PRID_IMP_R5500          0x5500
+#define PRID_IMP_LOONGSON2      0x6300
 
 #define PRID_IMP_UNKNOWN        0xff00
 
@@ -90,8 +92,6 @@
 #define PRID_IMP_24KE           0x9600
 #define PRID_IMP_74K            0x9700
 #define PRID_IMP_1004K          0x9900
-#define PRID_IMP_LOONGSON1      0x4200
-#define PRID_IMP_LOONGSON2      0x6300
 
 /*
  * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
diff --git a/include/asm-mips/dec/kn05.h b/include/asm-mips/dec/kn05.h
index 15fe8f881e6..56d22dc8803 100644
--- a/include/asm-mips/dec/kn05.h
+++ b/include/asm-mips/dec/kn05.h
@@ -6,7 +6,7 @@
  *      KN04-CA) and DECsystem 5900/260 (KN05) R4k CPU card MB ASIC
  *      definitions.
  *
- *      Copyright (C) 2002, 2003, 2005  Maciej W. Rozycki
+ *      Copyright (C) 2002, 2003, 2005, 2008  Maciej W. Rozycki
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
@@ -54,11 +54,11 @@
  */
 #define KN4K_MB_INT_TC          (1<<0)          /* TURBOchannel? */
 #define KN4K_MB_INT_RTC         (1<<1)          /* RTC? */
-#define KN4K_MB_INT_MT          (1<<3)          /* ??? */
+#define KN4K_MB_INT_MT          (1<<3)          /* I/O ASIC cascade */
 
 /*
  * Bits for the MB control & status register.
- * Set to 0x00bf8001 on my system by the ROM.
+ * Set to 0x00bf8001 for KN05 and to 0x003f8000 for KN04 by the firmware.
  */
 #define KN4K_MB_CSR_PF          (1<<0)          /* PreFetching enable? */
 #define KN4K_MB_CSR_F           (1<<1)          /* ??? */
@@ -69,7 +69,8 @@
 #define KN4K_MB_CSR_IM          (1<<13)         /* ??? */
 #define KN4K_MB_CSR_NC          (1<<14)         /* ??? */
 #define KN4K_MB_CSR_EE          (1<<15)         /* (bus) Exception Enable? */
-#define KN4K_MB_CSR_MSK         (0x1f<<16)      /* ??? */
+#define KN4K_MB_CSR_MSK         (0x1f<<16)      /* CPU Int[4:0] mask */
 #define KN4K_MB_CSR_FW          (1<<21)         /* ??? */
+#define KN4K_MB_CSR_W           (1<<31)         /* ??? */
 
 #endif /* __ASM_MIPS_DEC_KN05_H */
diff --git a/include/asm-mips/inventory.h b/include/asm-mips/inventory.h
deleted file mode 100644
index cc88aed23f0..00000000000
--- a/include/asm-mips/inventory.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Miguel de Icaza
- */
-#ifndef __ASM_INVENTORY_H
-#define __ASM_INVENTORY_H
-
-#include <linux/compiler.h>
-
-typedef struct inventory_s {
-        struct inventory_s *inv_next;
-        int    inv_class;
-        int    inv_type;
-        int    inv_controller;
-        int    inv_unit;
-        int    inv_state;
-} inventory_t;
-
-extern int inventory_items;
-
-extern void add_to_inventory(int class, int type, int controller, int unit, int state);
-extern int dump_inventory_to_user(void __user *userbuf, int size);
-extern int __init init_inventory(void);
-
-#endif /* __ASM_INVENTORY_H */
diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
index f18d2816cbe..501a40b9f18 100644
--- a/include/asm-mips/io.h
+++ b/include/asm-mips/io.h
@@ -161,13 +161,6 @@ static inline void * isa_bus_to_virt(unsigned long address)
 #define bus_to_virt phys_to_virt
 
 /*
- * isa_slot_offset is the address where E(ISA) busaddress 0 is mapped
- * for the processor.  This implies the assumption that there is only
- * one of these busses.
- */
-extern unsigned long isa_slot_offset;
-
-/*
  * Change "struct page" to physical address.
  */
 #define page_to_phys(page)      ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
@@ -528,16 +521,6 @@ static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int
 }
 
 /*
- * ISA space is 'always mapped' on currently supported MIPS systems, no need
- * to explicitly ioremap() it. The fact that the ISA IO space is mapped
- * to PAGE_OFFSET is pure coincidence - it does not mean ISA values
- * are physical addresses. The following constant pointer can be
- * used as the IO-area pointer (it can be iounmapped as well, so the
- * analogy with PCI is quite large):
- */
-#define __ISA_IO_base ((char *)(isa_slot_offset))
-
-/*
  * The caches on some architectures aren't dma-coherent and have need to
  * handle this in software.  There are three types of operations that
  * can be applied to dma buffers.
diff --git a/include/asm-mips/lasat/lasat.h b/include/asm-mips/lasat/lasat.h
index ea04d9262ed..caeba1e302a 100644
--- a/include/asm-mips/lasat/lasat.h
+++ b/include/asm-mips/lasat/lasat.h
@@ -240,6 +240,8 @@ static inline void lasat_ndelay(unsigned int ns)
         __delay(ns / lasat_ndelay_divider);
 }
 
+#define IS_LASAT_200()     (current_cpu_data.cputype == CPU_R5000)
+
 #endif /* !defined (_LANGUAGE_ASSEMBLY) */
 
 #define LASAT_SERVICEMODE_MAGIC_1     0xdeadbeef
diff --git a/include/asm-mips/mach-atlas/mc146818rtc.h b/include/asm-mips/mach-atlas/mc146818rtc.h
deleted file mode 100644
index 51d337e1bbd..00000000000
--- a/include/asm-mips/mach-atlas/mc146818rtc.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 1999, 2000, 2005  MIPS Technologies, Inc.
- *      All rights reserved.
- *      Authors: Carsten Langgaard <carstenl@mips.com>
- *               Maciej W. Rozycki <macro@mips.com>
- * Copyright (C) 2003, 05 Ralf Baechle (ralf@linux-mips.org)
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- */
-#ifndef __ASM_MACH_ATLAS_MC146818RTC_H
-#define __ASM_MACH_ATLAS_MC146818RTC_H
-
-#include <linux/types.h>
-
-#include <asm/addrspace.h>
-
-#include <asm/mips-boards/atlas.h>
-#include <asm/mips-boards/atlasint.h>
-
-#define ARCH_RTC_LOCATION
-
-#define RTC_PORT(x)     (ATLAS_RTC_ADR_REG + (x) * 8)
-#define RTC_IO_EXTENT   0x100
-#define RTC_IOMAPPED    0
-#define RTC_IRQ         ATLAS_INT_RTC
-
-static inline unsigned char CMOS_READ(unsigned long addr)
-{
-        volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0));
-        volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1));
-
-        *ireg = addr;
-        return *dreg;
-}
-
-static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
-{
-        volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0));
-        volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1));
-
-        *ireg = addr;
-        *dreg = data;
-}
-
-#define RTC_ALWAYS_BCD  0
-
-#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
-
-#endif /* __ASM_MACH_ATLAS_MC146818RTC_H */
diff --git a/include/asm-mips/mach-db1x00/db1x00.h b/include/asm-mips/mach-db1x00/db1x00.h
index 612ae90dbcb..1a515b8c870 100644
--- a/include/asm-mips/mach-db1x00/db1x00.h
+++ b/include/asm-mips/mach-db1x00/db1x00.h
@@ -146,51 +146,6 @@ typedef volatile struct
         ((((VCC) << 2) | ((VPP) << 0)) << ((SLOT) * 8))
 
 /*
- * SD controller macros
- */
-
-/* Detect card. */
-#define mmc_card_inserted(_n_, _res_) \
-        do { \
-                BCSR * const bcsr = (BCSR *)0xAE000000; \
-                unsigned long mmc_wp, board_specific; \
-                if ((_n_)) { \
-                        mmc_wp = BCSR_BOARD_SD1_WP; \
-                } else { \
-                        mmc_wp = BCSR_BOARD_SD0_WP; \
-                } \
-                board_specific = au_readl((unsigned long)(&bcsr->specific)); \
-                if (!(board_specific & mmc_wp)) {/* low means card present */ \
-                        *(int *)(_res_) = 1; \
-                } else { \
-                        *(int *)(_res_) = 0; \
-                } \
-        } while (0)
-
-/*
- * Apply power to card slot(s).
- */
-#define mmc_power_on(_n_) \
-        do { \
-                BCSR * const bcsr = (BCSR *)0xAE000000; \
-                unsigned long mmc_pwr, mmc_wp, board_specific; \
-                if ((_n_)) { \
-                        mmc_pwr = BCSR_BOARD_SD1_PWR; \
-                        mmc_wp  = BCSR_BOARD_SD1_WP; \
-                } else { \
-                        mmc_pwr = BCSR_BOARD_SD0_PWR; \
-                        mmc_wp  = BCSR_BOARD_SD0_WP; \
-                } \
-                board_specific = au_readl((unsigned long)(&bcsr->specific)); \
-                if (!(board_specific & mmc_wp)) {/* low means card present */ \
-                        board_specific |= mmc_pwr; \
-                        au_writel(board_specific, (int)(&bcsr->specific)); \
-                        au_sync(); \
-                } \
-        } while (0)
-
-
-/*
  * NAND defines
  *
  * Timing values as described in databook, * ns value stripped of the
diff --git a/include/asm-mips/mach-mips/cpu-feature-overrides.h b/include/asm-mips/mach-malta/cpu-feature-overrides.h
index 7f3e3f9bd23..7f3e3f9bd23 100644
--- a/include/asm-mips/mach-mips/cpu-feature-overrides.h
+++ b/include/asm-mips/mach-malta/cpu-feature-overrides.h
diff --git a/include/asm-mips/mach-mips/irq.h b/include/asm-mips/mach-malta/irq.h
index 9b9da26683c..9b9da26683c 100644
--- a/include/asm-mips/mach-mips/irq.h
+++ b/include/asm-mips/mach-malta/irq.h
diff --git a/include/asm-mips/mach-mips/kernel-entry-init.h b/include/asm-mips/mach-malta/kernel-entry-init.h
index 0b793e7bf67..0b793e7bf67 100644
--- a/include/asm-mips/mach-mips/kernel-entry-init.h
+++ b/include/asm-mips/mach-malta/kernel-entry-init.h
diff --git a/include/asm-mips/mach-mips/mach-gt64120.h b/include/asm-mips/mach-malta/mach-gt64120.h
index 0f863148f3b..0f863148f3b 100644
--- a/include/asm-mips/mach-mips/mach-gt64120.h
+++ b/include/asm-mips/mach-malta/mach-gt64120.h
diff --git a/include/asm-mips/mach-mips/mc146818rtc.h b/include/asm-mips/mach-malta/mc146818rtc.h
index ea612f37f61..ea612f37f61 100644
--- a/include/asm-mips/mach-mips/mc146818rtc.h
+++ b/include/asm-mips/mach-malta/mc146818rtc.h
diff --git a/include/asm-mips/mach-mips/war.h b/include/asm-mips/mach-malta/war.h
index 7c6931d5f45..7c6931d5f45 100644
--- a/include/asm-mips/mach-mips/war.h
+++ b/include/asm-mips/mach-malta/war.h
diff --git a/include/asm-mips/mach-jmr3927/ioremap.h b/include/asm-mips/mach-tx39xx/ioremap.h
index 29989ff10d6..93c6c04ffda 100644
--- a/include/asm-mips/mach-jmr3927/ioremap.h
+++ b/include/asm-mips/mach-tx39xx/ioremap.h
@@ -1,13 +1,13 @@
 /*
- *      include/asm-mips/mach-jmr3927/ioremap.h
+ *      include/asm-mips/mach-tx39xx/ioremap.h
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
  *      as published by the Free Software Foundation; either version
  *      2 of the License, or (at your option) any later version.
  */
-#ifndef __ASM_MACH_JMR3927_IOREMAP_H
-#define __ASM_MACH_JMR3927_IOREMAP_H
+#ifndef __ASM_MACH_TX39XX_IOREMAP_H
+#define __ASM_MACH_TX39XX_IOREMAP_H
 
 #include <linux/types.h>
 
@@ -35,4 +35,4 @@ static inline int plat_iounmap(const volatile void __iomem *addr)
         return (unsigned long)addr >= TXX9_DIRECTMAP_BASE;
 }
 
-#endif /* __ASM_MACH_JMR3927_IOREMAP_H */
+#endif /* __ASM_MACH_TX39XX_IOREMAP_H */
diff --git a/include/asm-mips/mach-jmr3927/mangle-port.h b/include/asm-mips/mach-tx39xx/mangle-port.h
index 11bffcd1043..ef0b502fd8b 100644
--- a/include/asm-mips/mach-jmr3927/mangle-port.h
+++ b/include/asm-mips/mach-tx39xx/mangle-port.h
@@ -1,7 +1,12 @@
-#ifndef __ASM_MACH_JMR3927_MANGLE_PORT_H
-#define __ASM_MACH_JMR3927_MANGLE_PORT_H
+#ifndef __ASM_MACH_TX39XX_MANGLE_PORT_H
+#define __ASM_MACH_TX39XX_MANGLE_PORT_H
 
-extern unsigned long __swizzle_addr_b(unsigned long port);
+#if defined(CONFIG_TOSHIBA_JMR3927)
+extern unsigned long (*__swizzle_addr_b)(unsigned long port);
+#define NEEDS_TXX9_SWIZZLE_ADDR_B
+#else
+#define __swizzle_addr_b(port)  (port)
+#endif
 #define __swizzle_addr_w(port)  (port)
 #define __swizzle_addr_l(port)  (port)
 #define __swizzle_addr_q(port)  (port)
@@ -15,4 +20,4 @@ extern unsigned long __swizzle_addr_b(unsigned long port);
 #define ioswabq(a, x)           le64_to_cpu(x)
 #define __mem_ioswabq(a, x)     (x)
 
-#endif /* __ASM_MACH_JMR3927_MANGLE_PORT_H */
+#endif /* __ASM_MACH_TX39XX_MANGLE_PORT_H */
diff --git a/include/asm-mips/mach-jmr3927/war.h b/include/asm-mips/mach-tx39xx/war.h
index 1ff55fb3fbc..43381461635 100644
--- a/include/asm-mips/mach-jmr3927/war.h
+++ b/include/asm-mips/mach-tx39xx/war.h
@@ -5,8 +5,8 @@
  *
  * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
  */
-#ifndef __ASM_MIPS_MACH_JMR3927_WAR_H
-#define __ASM_MIPS_MACH_JMR3927_WAR_H
+#ifndef __ASM_MIPS_MACH_TX39XX_WAR_H
+#define __ASM_MIPS_MACH_TX39XX_WAR_H
 
 #define R4600_V1_INDEX_ICACHEOP_WAR     0
 #define R4600_V1_HIT_CACHEOP_WAR        0
@@ -22,4 +22,4 @@
 #define R10000_LLSC_WAR                 0
 #define MIPS34K_MISSED_ITLB_WAR         0
 
-#endif /* __ASM_MIPS_MACH_JMR3927_WAR_H */
+#endif /* __ASM_MIPS_MACH_TX39XX_WAR_H */
diff --git a/include/asm-mips/mach-vr41xx/irq.h b/include/asm-mips/mach-vr41xx/irq.h
index 84881229605..862058d3f81 100644
--- a/include/asm-mips/mach-vr41xx/irq.h
+++ b/include/asm-mips/mach-vr41xx/irq.h
@@ -2,9 +2,6 @@
 #define __ASM_MACH_VR41XX_IRQ_H
 
 #include <asm/vr41xx/irq.h> /* for MIPS_CPU_IRQ_BASE */
-#ifdef CONFIG_NEC_CMBVR4133
-#include <asm/vr41xx/cmbvr4133.h> /* for I8259A_IRQ_BASE */
-#endif
 
 #include_next <irq.h>
 
diff --git a/include/asm-mips/mips-boards/generic.h b/include/asm-mips/mips-boards/generic.h
index 33407bee4e7..7f0b034dd9a 100644
--- a/include/asm-mips/mips-boards/generic.h
+++ b/include/asm-mips/mips-boards/generic.h
@@ -27,12 +27,8 @@
 /*
  * Display register base.
  */
-#ifdef CONFIG_MIPS_SEAD
-#define ASCII_DISPLAY_POS_BASE     0x1f0005c0
-#else
 #define ASCII_DISPLAY_WORD_BASE    0x1f000410
 #define ASCII_DISPLAY_POS_BASE     0x1f000418
-#endif
 
 
 /*
@@ -44,13 +40,8 @@
 /*
  * Reset register.
  */
-#ifdef CONFIG_MIPS_SEAD
-#define SOFTRES_REG       0x1e800050
-#define GORESET           0x4d
-#else
 #define SOFTRES_REG       0x1f000500
 #define GORESET           0x42
-#endif
 
 /*
  * Revision register.
diff --git a/include/asm-mips/namei.h b/include/asm-mips/namei.h
index c94d12d1f86..a6605a75246 100644
--- a/include/asm-mips/namei.h
+++ b/include/asm-mips/namei.h
@@ -1,26 +1,11 @@
 #ifndef _ASM_NAMEI_H
 #define _ASM_NAMEI_H
 
-#include <linux/personality.h>
-#include <linux/stddef.h>
+/*
+ * This dummy routine maybe changed to something useful
+ * for /usr/gnemul/ emulation stuff.
+ */
 
-#define IRIX_EMUL       "/usr/gnemul/irix/"
-#define RISCOS_EMUL     "/usr/gnemul/riscos/"
-
-static inline char *__emul_prefix(void)
-{
-        switch (current->personality) {
-        case PER_IRIX32:
-        case PER_IRIXN32:
-        case PER_IRIX64:
-                return IRIX_EMUL;
-
-        case PER_RISCOS:
-                return RISCOS_EMUL;
-
-        default:
-                return NULL;
-        }
-}
+#define __emul_prefix() NULL
 
 #endif /* _ASM_NAMEI_H */
diff --git a/include/asm-mips/pci.h b/include/asm-mips/pci.h
index 301ff2f2801..d3be8343607 100644
--- a/include/asm-mips/pci.h
+++ b/include/asm-mips/pci.h
@@ -172,4 +172,7 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
         return channel ? 15 : 14;
 }
 
+extern int pci_probe_only;
+extern unsigned int pcibios_max_latency;
+
 #endif /* _ASM_PCI_H */
diff --git a/include/asm-mips/prctl.h b/include/asm-mips/prctl.h
deleted file mode 100644
index 8121a9a75bf..00000000000
--- a/include/asm-mips/prctl.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * IRIX prctl interface
- *
- * The IRIX kernel maps a page at PRDA_ADDRESS with the
- * contents of prda and fills it the bits on prda_sys.
- */
-
-#ifndef __PRCTL_H__
-#define __PRCTL_H__
-
-#define PRDA_ADDRESS 0x200000L
-#define PRDA ((struct prda *) PRDA_ADDRESS)
-
-struct prda_sys {
-        pid_t t_pid;
-        u32   t_hint;
-        u32   t_dlactseq;
-        u32   t_fpflags;
-        u32   t_prid;           /* processor type, $prid CP0 register */
-        u32   t_dlendseq;
-        u64   t_unused1[5];
-        pid_t t_rpid;
-        s32   t_resched;
-        u32   t_unused[8];
-        u32   t_cpu;            /* current/last cpu */
-
-        /* FIXME: The signal information, not supported by Linux now */
-        u32   t_flags;          /* if true, then the sigprocmask is in userspace */
-        u32   t_sigprocmask [1]; /* the sigprocmask */
-};
-
-struct prda {
-        char fill [0xe00];
-        struct prda_sys prda_sys;
-};
-
-#define t_sys           prda_sys
-
-ptrdiff_t prctl(int op, int v1, int v2);
-
-#endif
diff --git a/include/asm-mips/setup.h b/include/asm-mips/setup.h
index 70009a90263..883f59bfa09 100644
--- a/include/asm-mips/setup.h
+++ b/include/asm-mips/setup.h
@@ -3,4 +3,6 @@
 
 #define COMMAND_LINE_SIZE       256
 
+extern void setup_early_printk(void);
+
 #endif /* __SETUP_H */
diff --git a/include/asm-mips/signal.h b/include/asm-mips/signal.h
index 7a28989f7ee..bee5153aca4 100644
--- a/include/asm-mips/signal.h
+++ b/include/asm-mips/signal.h
@@ -119,9 +119,6 @@ struct sigaction {
 
 struct k_sigaction {
         struct sigaction sa;
-#ifdef CONFIG_BINFMT_IRIX
-        void            (*sa_restorer)(void);
-#endif
 };
 
 /* IRIX compatible stack_t  */
diff --git a/include/asm-mips/smp.h b/include/asm-mips/smp.h
index 84fef1aeec0..0ff5b523ea7 100644
--- a/include/asm-mips/smp.h
+++ b/include/asm-mips/smp.h
@@ -35,16 +35,6 @@ extern int __cpu_logical_map[NR_CPUS];
 
 #define NO_PROC_ID      (-1)
 
-struct call_data_struct {
-        void            (*func)(void *);
-        void            *info;
-        atomic_t        started;
-        atomic_t        finished;
-        int             wait;
-};
-
-extern struct call_data_struct *call_data;
-
 #define SMP_RESCHEDULE_YOURSELF 0x1     /* XXX braindead */
 #define SMP_CALL_FUNCTION       0x2
 
@@ -67,4 +57,7 @@ static inline void smp_send_reschedule(int cpu)
 
 extern asmlinkage void smp_call_function_interrupt(void);
 
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
 #endif /* __ASM_SMP_H */
diff --git a/include/asm-mips/traps.h b/include/asm-mips/traps.h
index e5dbde625ec..90ff2f497c5 100644
--- a/include/asm-mips/traps.h
+++ b/include/asm-mips/traps.h
@@ -24,6 +24,5 @@ extern int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
 extern void (*board_nmi_handler_setup)(void);
 extern void (*board_ejtag_handler_setup)(void);
 extern void (*board_bind_eic_interrupt)(int irq, int regset);
-extern void (*board_watchpoint_handler)(struct pt_regs *regs);
 
 #endif /* _ASM_TRAPS_H */
diff --git a/include/asm-mips/tx4927/tx4927.h b/include/asm-mips/tx4927/tx4927.h
deleted file mode 100644
index 193e80a17c1..00000000000
--- a/include/asm-mips/tx4927/tx4927.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Author: MontaVista Software, Inc.
- *         source@mvista.com
- *
- * Copyright 2001-2006 MontaVista Software Inc.
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the
- *  Free Software Foundation; either version 2 of the License, or (at your
- *  option) any later version.
- *
- *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#ifndef __ASM_TX4927_TX4927_H
-#define __ASM_TX4927_TX4927_H
-
-#include <asm/txx9irq.h>
-
-#define TX4927_IRQ_CP0_BEG  MIPS_CPU_IRQ_BASE
-#define TX4927_IRQ_CP0_END  (MIPS_CPU_IRQ_BASE + 8 - 1)
-
-#define TX4927_IRQ_PIC_BEG  TXX9_IRQ_BASE
-#define TX4927_IRQ_PIC_END  (TXX9_IRQ_BASE + TXx9_MAX_IR - 1)
-
-
-#define TX4927_IRQ_USER0            (TX4927_IRQ_CP0_BEG+0)
-#define TX4927_IRQ_USER1            (TX4927_IRQ_CP0_BEG+1)
-#define TX4927_IRQ_NEST_PIC_ON_CP0  (TX4927_IRQ_CP0_BEG+2)
-#define TX4927_IRQ_CPU_TIMER        (TX4927_IRQ_CP0_BEG+7)
-
-#define TX4927_IRQ_NEST_EXT_ON_PIC  (TX4927_IRQ_PIC_BEG+3)
-
-#endif /* __ASM_TX4927_TX4927_H */
diff --git a/include/asm-mips/tx4927/tx4927_pci.h b/include/asm-mips/tx4927/tx4927_pci.h
deleted file mode 100644
index 0be77df70f2..00000000000
--- a/include/asm-mips/tx4927/tx4927_pci.h
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2000-2001 Toshiba Corporation
- */
-#ifndef __ASM_TX4927_TX4927_PCI_H
-#define __ASM_TX4927_TX4927_PCI_H
-
-#define TX4927_CCFG_TOE 0x00004000
-#define TX4927_CCFG_WR  0x00008000
-#define TX4927_CCFG_TINTDIS     0x01000000
-
-#define TX4927_PCIMEM      0x08000000
-#define TX4927_PCIMEM_SIZE 0x08000000
-#define TX4927_PCIIO       0x16000000
-#define TX4927_PCIIO_SIZE  0x01000000
-
-#define TX4927_SDRAMC_REG       0xff1f8000
-#define TX4927_EBUSC_REG        0xff1f9000
-#define TX4927_PCIC_REG         0xff1fd000
-#define TX4927_CCFG_REG         0xff1fe000
-#define TX4927_IRC_REG          0xff1ff600
-#define TX4927_NR_TMR   3
-#define TX4927_TMR_REG(ch)      (0xff1ff000 + (ch) * 0x100)
-#define TX4927_CE3      0x17f00000      /* 1M */
-#define TX4927_PCIRESET_ADDR    0xbc00f006
-#define TX4927_PCI_CLK_ADDR     (KSEG1 + TX4927_CE3 + 0x00040020)
-
-#define TX4927_IMSTAT_ADDR(n)   (KSEG1 + TX4927_CE3 + 0x0004001a + (n))
-#define tx4927_imstat_ptr(n)    \
-        ((volatile unsigned char *)TX4927_IMSTAT_ADDR(n))
-
-/* bits for ISTAT3/IMASK3/IMSTAT3 */
-#define TX4927_INT3B_PCID       0
-#define TX4927_INT3B_PCIC       1
-#define TX4927_INT3B_PCIB       2
-#define TX4927_INT3B_PCIA       3
-#define TX4927_INT3F_PCID       (1 << TX4927_INT3B_PCID)
-#define TX4927_INT3F_PCIC       (1 << TX4927_INT3B_PCIC)
-#define TX4927_INT3F_PCIB       (1 << TX4927_INT3B_PCIB)
-#define TX4927_INT3F_PCIA       (1 << TX4927_INT3B_PCIA)
-
-/* bits for PCI_CLK (S6) */
-#define TX4927_PCI_CLK_HOST     0x80
-#define TX4927_PCI_CLK_MASK     (0x0f << 3)
-#define TX4927_PCI_CLK_33       (0x01 << 3)
-#define TX4927_PCI_CLK_25       (0x04 << 3)
-#define TX4927_PCI_CLK_66       (0x09 << 3)
-#define TX4927_PCI_CLK_50       (0x0c << 3)
-#define TX4927_PCI_CLK_ACK      0x04
-#define TX4927_PCI_CLK_ACE      0x02
-#define TX4927_PCI_CLK_ENDIAN   0x01
-#define TX4927_NR_IRQ_LOCAL     TX4927_IRQ_PIC_BEG
-#define TX4927_NR_IRQ_IRC       32      /* On-Chip IRC */
-
-#define TX4927_IR_PCIC          16
-#define TX4927_IR_PCIERR        22
-#define TX4927_IR_PCIPMA        23
-#define TX4927_IRQ_IRC_PCIC     (TX4927_NR_IRQ_LOCAL + TX4927_IR_PCIC)
-#define TX4927_IRQ_IRC_PCIERR   (TX4927_NR_IRQ_LOCAL + TX4927_IR_PCIERR)
-#define TX4927_IRQ_IOC1         (TX4927_NR_IRQ_LOCAL + TX4927_NR_IRQ_IRC)
-#define TX4927_IRQ_IOC_PCID     (TX4927_IRQ_IOC1 + TX4927_INT3B_PCID)
-#define TX4927_IRQ_IOC_PCIC     (TX4927_IRQ_IOC1 + TX4927_INT3B_PCIC)
-#define TX4927_IRQ_IOC_PCIB     (TX4927_IRQ_IOC1 + TX4927_INT3B_PCIB)
-#define TX4927_IRQ_IOC_PCIA     (TX4927_IRQ_IOC1 + TX4927_INT3B_PCIA)
-
-#ifdef _LANGUAGE_ASSEMBLY
-#define _CONST64(c)     c
-#else
-#define _CONST64(c)     c##ull
-
-#include <asm/byteorder.h>
-
-#define tx4927_pcireset_ptr     \
-        ((volatile unsigned char *)TX4927_PCIRESET_ADDR)
-#define tx4927_pci_clk_ptr      \
-        ((volatile unsigned char *)TX4927_PCI_CLK_ADDR)
-
-struct tx4927_sdramc_reg {
-        volatile unsigned long long cr[4];
-        volatile unsigned long long unused0[4];
-        volatile unsigned long long tr;
-        volatile unsigned long long unused1[2];
-        volatile unsigned long long cmd;
-};
-
-struct tx4927_ebusc_reg {
-        volatile unsigned long long cr[8];
-};
-
-struct tx4927_ccfg_reg {
-        volatile unsigned long long ccfg;
-        volatile unsigned long long crir;
-        volatile unsigned long long pcfg;
-        volatile unsigned long long tear;
-        volatile unsigned long long clkctr;
-        volatile unsigned long long unused0;
-        volatile unsigned long long garbc;
-        volatile unsigned long long unused1;
-        volatile unsigned long long unused2;
-        volatile unsigned long long ramp;
-};
-
-struct tx4927_pcic_reg {
-        volatile unsigned long pciid;
-        volatile unsigned long pcistatus;
-        volatile unsigned long pciccrev;
-        volatile unsigned long pcicfg1;
-        volatile unsigned long p2gm0plbase;             /* +10 */
-        volatile unsigned long p2gm0pubase;
-        volatile unsigned long p2gm1plbase;
-        volatile unsigned long p2gm1pubase;
-        volatile unsigned long p2gm2pbase;              /* +20 */
-        volatile unsigned long p2giopbase;
-        volatile unsigned long unused0;
-        volatile unsigned long pcisid;
-        volatile unsigned long unused1;         /* +30 */
-        volatile unsigned long pcicapptr;
-        volatile unsigned long unused2;
-        volatile unsigned long pcicfg2;
-        volatile unsigned long g2ptocnt;                /* +40 */
-        volatile unsigned long unused3[15];
-        volatile unsigned long g2pstatus;               /* +80 */
-        volatile unsigned long g2pmask;
-        volatile unsigned long pcisstatus;
-        volatile unsigned long pcimask;
-        volatile unsigned long p2gcfg;          /* +90 */
-        volatile unsigned long p2gstatus;
-        volatile unsigned long p2gmask;
-        volatile unsigned long p2gccmd;
-        volatile unsigned long unused4[24];             /* +a0 */
-        volatile unsigned long pbareqport;              /* +100 */
-        volatile unsigned long pbacfg;
-        volatile unsigned long pbastatus;
-        volatile unsigned long pbamask;
-        volatile unsigned long pbabm;           /* +110 */
-        volatile unsigned long pbacreq;
-        volatile unsigned long pbacgnt;
-        volatile unsigned long pbacstate;
-        volatile unsigned long long g2pmgbase[3];               /* +120 */
-        volatile unsigned long long g2piogbase;
-        volatile unsigned long g2pmmask[3];             /* +140 */
-        volatile unsigned long g2piomask;
-        volatile unsigned long long g2pmpbase[3];               /* +150 */
-        volatile unsigned long long g2piopbase;
-        volatile unsigned long pciccfg;         /* +170 */
-        volatile unsigned long pcicstatus;
-        volatile unsigned long pcicmask;
-        volatile unsigned long unused5;
-        volatile unsigned long long p2gmgbase[3];               /* +180 */
-        volatile unsigned long long p2giogbase;
-        volatile unsigned long g2pcfgadrs;              /* +1a0 */
-        volatile unsigned long g2pcfgdata;
-        volatile unsigned long unused6[8];
-        volatile unsigned long g2pintack;
-        volatile unsigned long g2pspc;
-        volatile unsigned long unused7[12];             /* +1d0 */
-        volatile unsigned long long pdmca;              /* +200 */
-        volatile unsigned long long pdmga;
-        volatile unsigned long long pdmpa;
-        volatile unsigned long long pdmcut;
-        volatile unsigned long long pdmcnt;             /* +220 */
-        volatile unsigned long long pdmsts;
-        volatile unsigned long long unused8[2];
-        volatile unsigned long long pdmdb[4];           /* +240 */
-        volatile unsigned long long pdmtdh;             /* +260 */
-        volatile unsigned long long pdmdms;
-};
-
-#endif /* _LANGUAGE_ASSEMBLY */
-
-/*
- * PCIC
- */
-
-/* bits for G2PSTATUS/G2PMASK */
-#define TX4927_PCIC_G2PSTATUS_ALL       0x00000003
-#define TX4927_PCIC_G2PSTATUS_TTOE      0x00000002
-#define TX4927_PCIC_G2PSTATUS_RTOE      0x00000001
-
-/* bits for PCIMASK (see also PCI_STATUS_XXX in linux/pci.h */
-#define TX4927_PCIC_PCISTATUS_ALL       0x0000f900
-
-/* bits for PBACFG */
-#define TX4927_PCIC_PBACFG_RPBA 0x00000004
-#define TX4927_PCIC_PBACFG_PBAEN        0x00000002
-#define TX4927_PCIC_PBACFG_BMCEN        0x00000001
-
-/* bits for G2PMnGBASE */
-#define TX4927_PCIC_G2PMnGBASE_BSDIS    _CONST64(0x0000002000000000)
-#define TX4927_PCIC_G2PMnGBASE_ECHG     _CONST64(0x0000001000000000)
-
-/* bits for G2PIOGBASE */
-#define TX4927_PCIC_G2PIOGBASE_BSDIS    _CONST64(0x0000002000000000)
-#define TX4927_PCIC_G2PIOGBASE_ECHG     _CONST64(0x0000001000000000)
-
-/* bits for PCICSTATUS/PCICMASK */
-#define TX4927_PCIC_PCICSTATUS_ALL      0x000007dc
-
-/* bits for PCICCFG */
-#define TX4927_PCIC_PCICCFG_LBWC_MASK   0x0fff0000
-#define TX4927_PCIC_PCICCFG_HRST        0x00000800
-#define TX4927_PCIC_PCICCFG_SRST        0x00000400
-#define TX4927_PCIC_PCICCFG_IRBER       0x00000200
-#define TX4927_PCIC_PCICCFG_IMSE0       0x00000100
-#define TX4927_PCIC_PCICCFG_IMSE1       0x00000080
-#define TX4927_PCIC_PCICCFG_IMSE2       0x00000040
-#define TX4927_PCIC_PCICCFG_IISE        0x00000020
-#define TX4927_PCIC_PCICCFG_ATR 0x00000010
-#define TX4927_PCIC_PCICCFG_ICAE        0x00000008
-
-/* bits for P2GMnGBASE */
-#define TX4927_PCIC_P2GMnGBASE_TMEMEN   _CONST64(0x0000004000000000)
-#define TX4927_PCIC_P2GMnGBASE_TBSDIS   _CONST64(0x0000002000000000)
-#define TX4927_PCIC_P2GMnGBASE_TECHG    _CONST64(0x0000001000000000)
-
-/* bits for P2GIOGBASE */
-#define TX4927_PCIC_P2GIOGBASE_TIOEN    _CONST64(0x0000004000000000)
-#define TX4927_PCIC_P2GIOGBASE_TBSDIS   _CONST64(0x0000002000000000)
-#define TX4927_PCIC_P2GIOGBASE_TECHG    _CONST64(0x0000001000000000)
-
-#define TX4927_PCIC_IDSEL_AD_TO_SLOT(ad)        ((ad) - 11)
-#define TX4927_PCIC_MAX_DEVNU   TX4927_PCIC_IDSEL_AD_TO_SLOT(32)
-
-/*
- * CCFG
- */
-/* CCFG : Chip Configuration */
-#define TX4927_CCFG_PCI66       0x00800000
-#define TX4927_CCFG_PCIMIDE     0x00400000
-#define TX4927_CCFG_PCIXARB     0x00002000
-#define TX4927_CCFG_PCIDIVMODE_MASK     0x00001800
-#define TX4927_CCFG_PCIDIVMODE_2_5      0x00000000
-#define TX4927_CCFG_PCIDIVMODE_3        0x00000800
-#define TX4927_CCFG_PCIDIVMODE_5        0x00001000
-#define TX4927_CCFG_PCIDIVMODE_6        0x00001800
-
-#define TX4937_CCFG_PCIDIVMODE_MASK     0x00001c00
-#define TX4937_CCFG_PCIDIVMODE_8        0x00000000
-#define TX4937_CCFG_PCIDIVMODE_4        0x00000400
-#define TX4937_CCFG_PCIDIVMODE_9        0x00000800
-#define TX4937_CCFG_PCIDIVMODE_4_5      0x00000c00
-#define TX4937_CCFG_PCIDIVMODE_10       0x00001000
-#define TX4937_CCFG_PCIDIVMODE_5        0x00001400
-#define TX4937_CCFG_PCIDIVMODE_11       0x00001800
-#define TX4937_CCFG_PCIDIVMODE_5_5      0x00001c00
-
-/* PCFG : Pin Configuration */
-#define TX4927_PCFG_PCICLKEN_ALL        0x003f0000
-#define TX4927_PCFG_PCICLKEN(ch)        (0x00010000<<(ch))
-
-/* CLKCTR : Clock Control */
-#define TX4927_CLKCTR_PCICKD    0x00400000
-#define TX4927_CLKCTR_PCIRST    0x00000040
-
-
-#ifndef _LANGUAGE_ASSEMBLY
-
-#define tx4927_sdramcptr        ((struct tx4927_sdramc_reg *)TX4927_SDRAMC_REG)
-#define tx4927_pcicptr          ((struct tx4927_pcic_reg *)TX4927_PCIC_REG)
-#define tx4927_ccfgptr          ((struct tx4927_ccfg_reg *)TX4927_CCFG_REG)
-#define tx4927_ebuscptr         ((struct tx4927_ebusc_reg *)TX4927_EBUSC_REG)
-
-#endif /* _LANGUAGE_ASSEMBLY */
-
-#endif /* __ASM_TX4927_TX4927_PCI_H */
diff --git a/include/asm-mips/txx9/generic.h b/include/asm-mips/txx9/generic.h
new file mode 100644
index 00000000000..d8756660523
--- /dev/null
+++ b/include/asm-mips/txx9/generic.h
@@ -0,0 +1,41 @@
+/*
+ * linux/include/asm-mips/txx9/generic.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_TXX9_GENERIC_H
+#define __ASM_TXX9_GENERIC_H
+
+#include <linux/init.h>
+#include <linux/ioport.h>       /* for struct resource */
+
+extern struct resource txx9_ce_res[];
+extern char txx9_pcode_str[8];
+void txx9_reg_res_init(unsigned int pcode, unsigned long base,
+                       unsigned long size);
+
+extern unsigned int txx9_master_clock;
+extern unsigned int txx9_cpu_clock;
+extern unsigned int txx9_gbus_clock;
+
+struct pci_dev;
+struct txx9_board_vec {
+        const char *system;
+        void (*prom_init)(void);
+        void (*mem_setup)(void);
+        void (*irq_setup)(void);
+        void (*time_init)(void);
+        void (*arch_init)(void);
+        void (*device_init)(void);
+#ifdef CONFIG_PCI
+        int (*pci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
+#endif
+};
+extern struct txx9_board_vec *txx9_board_vec;
+extern int (*txx9_irq_dispatch)(int pending);
+void prom_init_cmdline(void);
+char *prom_getcmdline(void);
+
+#endif /* __ASM_TXX9_GENERIC_H */
diff --git a/include/asm-mips/jmr3927/jmr3927.h b/include/asm-mips/txx9/jmr3927.h
index a162268f17d..d6eb1b6a54e 100644
--- a/include/asm-mips/jmr3927/jmr3927.h
+++ b/include/asm-mips/txx9/jmr3927.h
@@ -7,10 +7,10 @@
  *
  * Copyright (C) 2000-2001 Toshiba Corporation
  */
-#ifndef __ASM_TX3927_JMR3927_H
-#define __ASM_TX3927_JMR3927_H
+#ifndef __ASM_TXX9_JMR3927_H
+#define __ASM_TXX9_JMR3927_H
 
-#include <asm/jmr3927/tx3927.h>
+#include <asm/txx9/tx3927.h>
 #include <asm/addrspace.h>
 #include <asm/system.h>
 #include <asm/txx9irq.h>
@@ -174,4 +174,9 @@
  *      INT[3:0]
  */
 
-#endif /* __ASM_TX3927_JMR3927_H */
+void jmr3927_prom_init(void);
+void jmr3927_irq_setup(void);
+struct pci_dev;
+int jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
+#endif /* __ASM_TXX9_JMR3927_H */
diff --git a/include/asm-mips/txx9/pci.h b/include/asm-mips/txx9/pci.h
new file mode 100644
index 00000000000..d89a45091e2
--- /dev/null
+++ b/include/asm-mips/txx9/pci.h
@@ -0,0 +1,36 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_TXX9_PCI_H
+#define __ASM_TXX9_PCI_H
+
+#include <linux/pci.h>
+
+extern struct pci_controller txx9_primary_pcic;
+struct pci_controller *
+txx9_alloc_pci_controller(struct pci_controller *pcic,
+                          unsigned long mem_base, unsigned long mem_size,
+                          unsigned long io_base, unsigned long io_size);
+
+int txx9_pci66_check(struct pci_controller *hose, int top_bus,
+                        int current_bus);
+extern int txx9_pci_mem_high __initdata;
+
+extern int txx9_pci_option;
+#define TXX9_PCI_OPT_PICMG      0x0002
+#define TXX9_PCI_OPT_CLK_33     0x0008
+#define TXX9_PCI_OPT_CLK_66     0x0010
+#define TXX9_PCI_OPT_CLK_MASK   \
+        (TXX9_PCI_OPT_CLK_33 | TXX9_PCI_OPT_CLK_66)
+#define TXX9_PCI_OPT_CLK_AUTO   TXX9_PCI_OPT_CLK_MASK
+
+enum txx9_pci_err_action {
+        TXX9_PCI_ERR_REPORT,
+        TXX9_PCI_ERR_IGNORE,
+        TXX9_PCI_ERR_PANIC,
+};
+extern enum txx9_pci_err_action txx9_pci_err_action;
+
+#endif /* __ASM_TXX9_PCI_H */
diff --git a/include/asm-mips/tx4927/toshiba_rbtx4927.h b/include/asm-mips/txx9/rbtx4927.h
index b188a659ce0..bf194589216 100644
--- a/include/asm-mips/tx4927/toshiba_rbtx4927.h
+++ b/include/asm-mips/txx9/rbtx4927.h
@@ -24,18 +24,42 @@
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
-#ifndef __ASM_TX4927_TOSHIBA_RBTX4927_H
-#define __ASM_TX4927_TOSHIBA_RBTX4927_H
+#ifndef __ASM_TXX9_RBTX4927_H
+#define __ASM_TXX9_RBTX4927_H
 
-#include <asm/tx4927/tx4927.h>
-#ifdef CONFIG_PCI
-#include <asm/tx4927/tx4927_pci.h>
-#endif
+#include <asm/txx9/tx4927.h>
+
+#define RBTX4927_PCIMEM         0x08000000
+#define RBTX4927_PCIMEM_SIZE    0x08000000
+#define RBTX4927_PCIIO          0x16000000
+#define RBTX4927_PCIIO_SIZE     0x01000000
+
+#define rbtx4927_pcireset_addr  ((__u8 __iomem *)0xbc00f006UL)
+
+/* bits for ISTAT/IMASK/IMSTAT */
+#define RBTX4927_INTB_PCID      0
+#define RBTX4927_INTB_PCIC      1
+#define RBTX4927_INTB_PCIB      2
+#define RBTX4927_INTB_PCIA      3
+#define RBTX4927_INTF_PCID      (1 << RBTX4927_INTB_PCID)
+#define RBTX4927_INTF_PCIC      (1 << RBTX4927_INTB_PCIC)
+#define RBTX4927_INTF_PCIB      (1 << RBTX4927_INTB_PCIB)
+#define RBTX4927_INTF_PCIA      (1 << RBTX4927_INTB_PCIA)
+
+#define RBTX4927_NR_IRQ_IOC     8       /* IOC */
+
+#define RBTX4927_IRQ_IOC        (TXX9_IRQ_BASE + TX4927_NUM_IR)
+#define RBTX4927_IRQ_IOC_PCID   (RBTX4927_IRQ_IOC + RBTX4927_INTB_PCID)
+#define RBTX4927_IRQ_IOC_PCIC   (RBTX4927_IRQ_IOC + RBTX4927_INTB_PCIC)
+#define RBTX4927_IRQ_IOC_PCIB   (RBTX4927_IRQ_IOC + RBTX4927_INTB_PCIB)
+#define RBTX4927_IRQ_IOC_PCIA   (RBTX4927_IRQ_IOC + RBTX4927_INTB_PCIA)
+
+#define RBTX4927_IRQ_IOCINT     (TXX9_IRQ_BASE + TX4927_IR_INT(1))
 
 #ifdef CONFIG_PCI
-#define TBTX4927_ISA_IO_OFFSET TX4927_PCIIO
+#define RBTX4927_ISA_IO_OFFSET RBTX4927_PCIIO
 #else
-#define TBTX4927_ISA_IO_OFFSET 0
+#define RBTX4927_ISA_IO_OFFSET 0
 #endif
 
 #define RBTX4927_SW_RESET_DO         (void __iomem *)0xbc00f000UL
@@ -44,10 +68,12 @@
 #define RBTX4927_SW_RESET_ENABLE     (void __iomem *)0xbc00f002UL
 #define RBTX4927_SW_RESET_ENABLE_SET            0x01
 
+#define RBTX4927_RTL_8019_BASE (0x1c020280 - RBTX4927_ISA_IO_OFFSET)
+#define RBTX4927_RTL_8019_IRQ  (TXX9_IRQ_BASE + TX4927_IR_INT(3))
 
-#define RBTX4927_RTL_8019_BASE (0x1c020280-TBTX4927_ISA_IO_OFFSET)
-#define RBTX4927_RTL_8019_IRQ  (TX4927_IRQ_PIC_BEG + 5)
-
-int toshiba_rbtx4927_irq_nested(int sw_irq);
+void rbtx4927_prom_init(void);
+void rbtx4927_irq_setup(void);
+struct pci_dev;
+int rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 
-#endif /* __ASM_TX4927_TOSHIBA_RBTX4927_H */
+#endif /* __ASM_TXX9_RBTX4927_H */
diff --git a/include/asm-mips/tx4938/rbtx4938.h b/include/asm-mips/txx9/rbtx4938.h
index dfed7beb533..2f5d5e705a4 100644
--- a/include/asm-mips/tx4938/rbtx4938.h
+++ b/include/asm-mips/txx9/rbtx4938.h
@@ -1,5 +1,4 @@
 /*
- * linux/include/asm-mips/tx4938/rbtx4938.h
  * Definitions for TX4937/TX4938
  *
  * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
@@ -9,12 +8,12 @@
  *
  * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
  */
-#ifndef __ASM_TX_BOARDS_RBTX4938_H
-#define __ASM_TX_BOARDS_RBTX4938_H
+#ifndef __ASM_TXX9_RBTX4938_H
+#define __ASM_TXX9_RBTX4938_H
 
 #include <asm/addrspace.h>
-#include <asm/tx4938/tx4938.h>
 #include <asm/txx9irq.h>
+#include <asm/txx9/tx4938.h>
 
 /* CS */
 #define RBTX4938_CE0    0x1c000000      /* 64M */
@@ -102,35 +101,12 @@
  * that particular IRQ on an RBTX4938 machine.  Add new 'spaces' as new
  * IRQ hardware is supported.
  */
-#define RBTX4938_NR_IRQ_LOCAL   8
-#define RBTX4938_NR_IRQ_IRC     32      /* On-Chip IRC */
 #define RBTX4938_NR_IRQ_IOC     8
 
-#define TX4938_IRQ_CP0_BEG  MIPS_CPU_IRQ_BASE
-#define TX4938_IRQ_CP0_END  (MIPS_CPU_IRQ_BASE + 8 - 1)
-
-#define TX4938_IRQ_PIC_BEG  TXX9_IRQ_BASE
-#define TX4938_IRQ_PIC_END  (TXX9_IRQ_BASE + TXx9_MAX_IR - 1)
-#define TX4938_IRQ_NEST_EXT_ON_PIC  (TX4938_IRQ_PIC_BEG+2)
-#define TX4938_IRQ_NEST_PIC_ON_CP0  (TX4938_IRQ_CP0_BEG+2)
-#define TX4938_IRQ_USER0            (TX4938_IRQ_CP0_BEG+0)
-#define TX4938_IRQ_USER1            (TX4938_IRQ_CP0_BEG+1)
-#define TX4938_IRQ_CPU_TIMER        (TX4938_IRQ_CP0_BEG+7)
-
-#define TOSHIBA_RBTX4938_IRQ_IOC_RAW_BEG   0
-#define TOSHIBA_RBTX4938_IRQ_IOC_RAW_END   7
-
-#define TOSHIBA_RBTX4938_IRQ_IOC_BEG  ((TX4938_IRQ_PIC_END+1)+TOSHIBA_RBTX4938_IRQ_IOC_RAW_BEG) /* 56 */
-#define TOSHIBA_RBTX4938_IRQ_IOC_END  ((TX4938_IRQ_PIC_END+1)+TOSHIBA_RBTX4938_IRQ_IOC_RAW_END) /* 63 */
-#define RBTX4938_IRQ_LOCAL      TX4938_IRQ_CP0_BEG
-#define RBTX4938_IRQ_IRC        (RBTX4938_IRQ_LOCAL + RBTX4938_NR_IRQ_LOCAL)
-#define RBTX4938_IRQ_IOC        (RBTX4938_IRQ_IRC + RBTX4938_NR_IRQ_IRC)
+#define RBTX4938_IRQ_IRC        TXX9_IRQ_BASE
+#define RBTX4938_IRQ_IOC        (TXX9_IRQ_BASE + TX4938_NUM_IR)
 #define RBTX4938_IRQ_END        (RBTX4938_IRQ_IOC + RBTX4938_NR_IRQ_IOC)
 
-#define RBTX4938_IRQ_LOCAL_SOFT0        (RBTX4938_IRQ_LOCAL + RBTX4938_SOFT_INT0)
-#define RBTX4938_IRQ_LOCAL_SOFT1        (RBTX4938_IRQ_LOCAL + RBTX4938_SOFT_INT1)
-#define RBTX4938_IRQ_LOCAL_IRC  (RBTX4938_IRQ_LOCAL + RBTX4938_IRC_INT)
-#define RBTX4938_IRQ_LOCAL_TIMER        (RBTX4938_IRQ_LOCAL + RBTX4938_TIMER_INT)
 #define RBTX4938_IRQ_IRC_ECCERR (RBTX4938_IRQ_IRC + TX4938_IR_ECCERR)
 #define RBTX4938_IRQ_IRC_WTOERR (RBTX4938_IRQ_IRC + TX4938_IR_WTOERR)
 #define RBTX4938_IRQ_IRC_INT(n) (RBTX4938_IRQ_IRC + TX4938_IR_INT(n))
@@ -158,11 +134,16 @@
 
 
 /* IOC (PCI, etc) */
-#define RBTX4938_IRQ_IOCINT     (TX4938_IRQ_NEST_EXT_ON_PIC)
+#define RBTX4938_IRQ_IOCINT     (TXX9_IRQ_BASE + TX4938_IR_INT(0))
 /* Onboard 10M Ether */
-#define RBTX4938_IRQ_ETHER      (TX4938_IRQ_NEST_EXT_ON_PIC + 1)
+#define RBTX4938_IRQ_ETHER      (TXX9_IRQ_BASE + TX4938_IR_INT(1))
 
 #define RBTX4938_RTL_8019_BASE (RBTX4938_ETHER_ADDR - mips_io_port_base)
 #define RBTX4938_RTL_8019_IRQ  (RBTX4938_IRQ_ETHER)
 
-#endif /* __ASM_TX_BOARDS_RBTX4938_H */
+void rbtx4938_prom_init(void);
+void rbtx4938_irq_setup(void);
+struct pci_dev;
+int rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
+#endif /* __ASM_TXX9_RBTX4938_H */
diff --git a/include/asm-mips/tx4927/smsc_fdc37m81x.h b/include/asm-mips/txx9/smsc_fdc37m81x.h
index 5d93bab5125..9375e4fc228 100644
--- a/include/asm-mips/tx4927/smsc_fdc37m81x.h
+++ b/include/asm-mips/txx9/smsc_fdc37m81x.h
@@ -1,6 +1,4 @@
 /*
- * linux/include/asm-mips/tx4927/smsc_fdc37m81x.h
- *
  * Interface for smsc fdc48m81x Super IO chip
  *
  * Author: MontaVista Software, Inc. source@mvista.com
diff --git a/include/asm-mips/tx4938/spi.h b/include/asm-mips/txx9/spi.h
index 6a60c83e152..ddfb2a0dc43 100644
--- a/include/asm-mips/tx4938/spi.h
+++ b/include/asm-mips/txx9/spi.h
@@ -1,5 +1,4 @@
 /*
- * linux/include/asm-mips/tx4938/spi.h
  * Definitions for TX4937/TX4938 SPI
  *
  * Copyright (C) 2000-2001 Toshiba Corporation
@@ -11,10 +10,10 @@
  *
  * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
  */
-#ifndef __ASM_TX_BOARDS_TX4938_SPI_H
-#define __ASM_TX_BOARDS_TX4938_SPI_H
+#ifndef __ASM_TXX9_SPI_H
+#define __ASM_TXX9_SPI_H
 
 extern int spi_eeprom_register(int chipid);
 extern int spi_eeprom_read(int chipid, int address, unsigned char *buf, int len);
 
-#endif /* __ASM_TX_BOARDS_TX4938_SPI_H */
+#endif /* __ASM_TXX9_SPI_H */
diff --git a/include/asm-mips/jmr3927/tx3927.h b/include/asm-mips/txx9/tx3927.h
index fb580333c10..ca414c7624e 100644
--- a/include/asm-mips/jmr3927/tx3927.h
+++ b/include/asm-mips/txx9/tx3927.h
@@ -5,10 +5,10 @@
  *
  * Copyright (C) 2000 Toshiba Corporation
  */
-#ifndef __ASM_TX3927_H
-#define __ASM_TX3927_H
+#ifndef __ASM_TXX9_TX3927_H
+#define __ASM_TXX9_TX3927_H
 
-#include <asm/jmr3927/txx927.h>
+#include <asm/txx9/txx927.h>
 
 #define TX3927_SDRAMC_REG       0xfffe8000
 #define TX3927_ROMC_REG         0xfffe9000
@@ -316,4 +316,8 @@ struct tx3927_ccfg_reg {
 #define tx3927_sioptr(ch)       ((struct txx927_sio_reg *)TX3927_SIO_REG(ch))
 #define tx3927_pioptr           ((struct txx9_pio_reg __iomem *)TX3927_PIO_REG)
 
-#endif /* __ASM_TX3927_H */
+struct pci_controller;
+void __init tx3927_pcic_setup(struct pci_controller *channel,
+                              unsigned long sdram_size, int extarb);
+
+#endif /* __ASM_TXX9_TX3927_H */
diff --git a/include/asm-mips/txx9/tx4927.h b/include/asm-mips/txx9/tx4927.h
new file mode 100644
index 00000000000..46d60afc038
--- /dev/null
+++ b/include/asm-mips/txx9/tx4927.h
@@ -0,0 +1,219 @@
+/*
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2006 MontaVista Software Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#ifndef __ASM_TXX9_TX4927_H
+#define __ASM_TXX9_TX4927_H
+
+#include <linux/types.h>
+#include <linux/io.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9/tx4927pcic.h>
+
+#define TX4927_SDRAMC_REG       0xff1f8000
+#define TX4927_EBUSC_REG        0xff1f9000
+#define TX4927_PCIC_REG         0xff1fd000
+#define TX4927_CCFG_REG         0xff1fe000
+#define TX4927_IRC_REG          0xff1ff600
+#define TX4927_NR_TMR   3
+#define TX4927_TMR_REG(ch)      (0xff1ff000 + (ch) * 0x100)
+
+#define TX4927_IR_INT(n)        (2 + (n))
+#define TX4927_IR_SIO(n)        (8 + (n))
+#define TX4927_IR_PCIC          16
+#define TX4927_IR_PCIERR        22
+#define TX4927_NUM_IR   32
+
+#define TX4927_IRC_INT  2       /* IP[2] in Status register */
+
+struct tx4927_sdramc_reg {
+        volatile unsigned long long cr[4];
+        volatile unsigned long long unused0[4];
+        volatile unsigned long long tr;
+        volatile unsigned long long unused1[2];
+        volatile unsigned long long cmd;
+};
+
+struct tx4927_ebusc_reg {
+        volatile unsigned long long cr[8];
+};
+
+struct tx4927_ccfg_reg {
+        u64 ccfg;
+        u64 crir;
+        u64 pcfg;
+        u64 toea;
+        u64 clkctr;
+        u64 unused0;
+        u64 garbc;
+        u64 unused1;
+        u64 unused2;
+        u64 ramp;
+};
+
+/*
+ * CCFG
+ */
+/* CCFG : Chip Configuration */
+#define TX4927_CCFG_WDRST       0x0000020000000000ULL
+#define TX4927_CCFG_WDREXEN     0x0000010000000000ULL
+#define TX4927_CCFG_BCFG_MASK   0x000000ff00000000ULL
+#define TX4927_CCFG_TINTDIS     0x01000000
+#define TX4927_CCFG_PCI66       0x00800000
+#define TX4927_CCFG_PCIMODE     0x00400000
+#define TX4927_CCFG_DIVMODE_MASK        0x000e0000
+#define TX4927_CCFG_DIVMODE_8   (0x0 << 17)
+#define TX4927_CCFG_DIVMODE_12  (0x1 << 17)
+#define TX4927_CCFG_DIVMODE_16  (0x2 << 17)
+#define TX4927_CCFG_DIVMODE_10  (0x3 << 17)
+#define TX4927_CCFG_DIVMODE_2   (0x4 << 17)
+#define TX4927_CCFG_DIVMODE_3   (0x5 << 17)
+#define TX4927_CCFG_DIVMODE_4   (0x6 << 17)
+#define TX4927_CCFG_DIVMODE_2_5 (0x7 << 17)
+#define TX4927_CCFG_BEOW        0x00010000
+#define TX4927_CCFG_WR  0x00008000
+#define TX4927_CCFG_TOE 0x00004000
+#define TX4927_CCFG_PCIARB      0x00002000
+#define TX4927_CCFG_PCIDIVMODE_MASK     0x00001800
+#define TX4927_CCFG_PCIDIVMODE_2_5      0x00000000
+#define TX4927_CCFG_PCIDIVMODE_3        0x00000800
+#define TX4927_CCFG_PCIDIVMODE_5        0x00001000
+#define TX4927_CCFG_PCIDIVMODE_6        0x00001800
+#define TX4927_CCFG_SYSSP_MASK  0x000000c0
+#define TX4927_CCFG_ENDIAN      0x00000004
+#define TX4927_CCFG_HALT        0x00000002
+#define TX4927_CCFG_ACEHOLD     0x00000001
+#define TX4927_CCFG_W1CBITS     (TX4927_CCFG_WDRST | TX4927_CCFG_BEOW)
+
+/* PCFG : Pin Configuration */
+#define TX4927_PCFG_SDCLKDLY_MASK       0x30000000
+#define TX4927_PCFG_SDCLKDLY(d) ((d)<<28)
+#define TX4927_PCFG_SYSCLKEN    0x08000000
+#define TX4927_PCFG_SDCLKEN_ALL 0x07800000
+#define TX4927_PCFG_SDCLKEN(ch) (0x00800000<<(ch))
+#define TX4927_PCFG_PCICLKEN_ALL        0x003f0000
+#define TX4927_PCFG_PCICLKEN(ch)        (0x00010000<<(ch))
+#define TX4927_PCFG_SEL2        0x00000200
+#define TX4927_PCFG_SEL1        0x00000100
+#define TX4927_PCFG_DMASEL_ALL  0x000000ff
+#define TX4927_PCFG_DMASEL0_MASK        0x00000003
+#define TX4927_PCFG_DMASEL1_MASK        0x0000000c
+#define TX4927_PCFG_DMASEL2_MASK        0x00000030
+#define TX4927_PCFG_DMASEL3_MASK        0x000000c0
+#define TX4927_PCFG_DMASEL0_DRQ0        0x00000000
+#define TX4927_PCFG_DMASEL0_SIO1        0x00000001
+#define TX4927_PCFG_DMASEL0_ACL0        0x00000002
+#define TX4927_PCFG_DMASEL0_ACL2        0x00000003
+#define TX4927_PCFG_DMASEL1_DRQ1        0x00000000
+#define TX4927_PCFG_DMASEL1_SIO1        0x00000004
+#define TX4927_PCFG_DMASEL1_ACL1        0x00000008
+#define TX4927_PCFG_DMASEL1_ACL3        0x0000000c
+#define TX4927_PCFG_DMASEL2_DRQ2        0x00000000      /* SEL2=0 */
+#define TX4927_PCFG_DMASEL2_SIO0        0x00000010      /* SEL2=0 */
+#define TX4927_PCFG_DMASEL2_ACL1        0x00000000      /* SEL2=1 */
+#define TX4927_PCFG_DMASEL2_ACL2        0x00000020      /* SEL2=1 */
+#define TX4927_PCFG_DMASEL2_ACL0        0x00000030      /* SEL2=1 */
+#define TX4927_PCFG_DMASEL3_DRQ3        0x00000000
+#define TX4927_PCFG_DMASEL3_SIO0        0x00000040
+#define TX4927_PCFG_DMASEL3_ACL3        0x00000080
+#define TX4927_PCFG_DMASEL3_ACL1        0x000000c0
+
+/* CLKCTR : Clock Control */
+#define TX4927_CLKCTR_ACLCKD    0x02000000
+#define TX4927_CLKCTR_PIOCKD    0x01000000
+#define TX4927_CLKCTR_DMACKD    0x00800000
+#define TX4927_CLKCTR_PCICKD    0x00400000
+#define TX4927_CLKCTR_TM0CKD    0x00100000
+#define TX4927_CLKCTR_TM1CKD    0x00080000
+#define TX4927_CLKCTR_TM2CKD    0x00040000
+#define TX4927_CLKCTR_SIO0CKD   0x00020000
+#define TX4927_CLKCTR_SIO1CKD   0x00010000
+#define TX4927_CLKCTR_ACLRST    0x00000200
+#define TX4927_CLKCTR_PIORST    0x00000100
+#define TX4927_CLKCTR_DMARST    0x00000080
+#define TX4927_CLKCTR_PCIRST    0x00000040
+#define TX4927_CLKCTR_TM0RST    0x00000010
+#define TX4927_CLKCTR_TM1RST    0x00000008
+#define TX4927_CLKCTR_TM2RST    0x00000004
+#define TX4927_CLKCTR_SIO0RST   0x00000002
+#define TX4927_CLKCTR_SIO1RST   0x00000001
+
+#define tx4927_sdramcptr        ((struct tx4927_sdramc_reg *)TX4927_SDRAMC_REG)
+#define tx4927_pcicptr \
+                ((struct tx4927_pcic_reg __iomem *)TX4927_PCIC_REG)
+#define tx4927_ccfgptr \
+                ((struct tx4927_ccfg_reg __iomem *)TX4927_CCFG_REG)
+#define tx4927_ebuscptr         ((struct tx4927_ebusc_reg *)TX4927_EBUSC_REG)
+
+/* utilities */
+static inline void txx9_clear64(__u64 __iomem *adr, __u64 bits)
+{
+#ifdef CONFIG_32BIT
+        unsigned long flags;
+        local_irq_save(flags);
+#endif
+        ____raw_writeq(____raw_readq(adr) & ~bits, adr);
+#ifdef CONFIG_32BIT
+        local_irq_restore(flags);
+#endif
+}
+static inline void txx9_set64(__u64 __iomem *adr, __u64 bits)
+{
+#ifdef CONFIG_32BIT
+        unsigned long flags;
+        local_irq_save(flags);
+#endif
+        ____raw_writeq(____raw_readq(adr) | bits, adr);
+#ifdef CONFIG_32BIT
+        local_irq_restore(flags);
+#endif
+}
+
+/* These functions are not interrupt safe. */
+static inline void tx4927_ccfg_clear(__u64 bits)
+{
+        ____raw_writeq(____raw_readq(&tx4927_ccfgptr->ccfg)
+                       & ~(TX4927_CCFG_W1CBITS | bits),
+                       &tx4927_ccfgptr->ccfg);
+}
+static inline void tx4927_ccfg_set(__u64 bits)
+{
+        ____raw_writeq((____raw_readq(&tx4927_ccfgptr->ccfg)
+                        & ~TX4927_CCFG_W1CBITS) | bits,
+                       &tx4927_ccfgptr->ccfg);
+}
+static inline void tx4927_ccfg_change(__u64 change, __u64 new)
+{
+        ____raw_writeq((____raw_readq(&tx4927_ccfgptr->ccfg)
+                        & ~(TX4927_CCFG_W1CBITS | change)) |
+                       new,
+                       &tx4927_ccfgptr->ccfg);
+}
+
+int tx4927_report_pciclk(void);
+int tx4927_pciclk66_setup(void);
+void tx4927_irq_init(void);
+
+#endif /* __ASM_TXX9_TX4927_H */
diff --git a/include/asm-mips/txx9/tx4927pcic.h b/include/asm-mips/txx9/tx4927pcic.h
new file mode 100644
index 00000000000..d61c3d09c4a
--- /dev/null
+++ b/include/asm-mips/txx9/tx4927pcic.h
@@ -0,0 +1,199 @@
+/*
+ * include/asm-mips/txx9/tx4927pcic.h
+ * TX4927 PCI controller definitions.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_TXX9_TX4927PCIC_H
+#define __ASM_TXX9_TX4927PCIC_H
+
+#include <linux/pci.h>
+
+struct tx4927_pcic_reg {
+        u32 pciid;
+        u32 pcistatus;
+        u32 pciccrev;
+        u32 pcicfg1;
+        u32 p2gm0plbase;                /* +10 */
+        u32 p2gm0pubase;
+        u32 p2gm1plbase;
+        u32 p2gm1pubase;
+        u32 p2gm2pbase;         /* +20 */
+        u32 p2giopbase;
+        u32 unused0;
+        u32 pcisid;
+        u32 unused1;            /* +30 */
+        u32 pcicapptr;
+        u32 unused2;
+        u32 pcicfg2;
+        u32 g2ptocnt;           /* +40 */
+        u32 unused3[15];
+        u32 g2pstatus;          /* +80 */
+        u32 g2pmask;
+        u32 pcisstatus;
+        u32 pcimask;
+        u32 p2gcfg;             /* +90 */
+        u32 p2gstatus;
+        u32 p2gmask;
+        u32 p2gccmd;
+        u32 unused4[24];                /* +a0 */
+        u32 pbareqport;         /* +100 */
+        u32 pbacfg;
+        u32 pbastatus;
+        u32 pbamask;
+        u32 pbabm;              /* +110 */
+        u32 pbacreq;
+        u32 pbacgnt;
+        u32 pbacstate;
+        u64 g2pmgbase[3];               /* +120 */
+        u64 g2piogbase;
+        u32 g2pmmask[3];                /* +140 */
+        u32 g2piomask;
+        u64 g2pmpbase[3];               /* +150 */
+        u64 g2piopbase;
+        u32 pciccfg;            /* +170 */
+        u32 pcicstatus;
+        u32 pcicmask;
+        u32 unused5;
+        u64 p2gmgbase[3];               /* +180 */
+        u64 p2giogbase;
+        u32 g2pcfgadrs;         /* +1a0 */
+        u32 g2pcfgdata;
+        u32 unused6[8];
+        u32 g2pintack;
+        u32 g2pspc;
+        u32 unused7[12];                /* +1d0 */
+        u64 pdmca;              /* +200 */
+        u64 pdmga;
+        u64 pdmpa;
+        u64 pdmctr;
+        u64 pdmcfg;             /* +220 */
+        u64 pdmsts;
+};
+
+/* bits for PCICMD */
+/* see PCI_COMMAND_XXX in linux/pci_regs.h */
+
+/* bits for PCISTAT */
+/* see PCI_STATUS_XXX in linux/pci_regs.h */
+
+/* bits for IOBA/MBA */
+/* see PCI_BASE_ADDRESS_XXX in linux/pci_regs.h */
+
+/* bits for G2PSTATUS/G2PMASK */
+#define TX4927_PCIC_G2PSTATUS_ALL       0x00000003
+#define TX4927_PCIC_G2PSTATUS_TTOE      0x00000002
+#define TX4927_PCIC_G2PSTATUS_RTOE      0x00000001
+
+/* bits for PCIMASK (see also PCI_STATUS_XXX in linux/pci_regs.h */
+#define TX4927_PCIC_PCISTATUS_ALL       0x0000f900
+
+/* bits for PBACFG */
+#define TX4927_PCIC_PBACFG_FIXPA        0x00000008
+#define TX4927_PCIC_PBACFG_RPBA 0x00000004
+#define TX4927_PCIC_PBACFG_PBAEN        0x00000002
+#define TX4927_PCIC_PBACFG_BMCEN        0x00000001
+
+/* bits for PBASTATUS/PBAMASK */
+#define TX4927_PCIC_PBASTATUS_ALL       0x00000001
+#define TX4927_PCIC_PBASTATUS_BM        0x00000001
+
+/* bits for G2PMnGBASE */
+#define TX4927_PCIC_G2PMnGBASE_BSDIS    0x0000002000000000ULL
+#define TX4927_PCIC_G2PMnGBASE_ECHG     0x0000001000000000ULL
+
+/* bits for G2PIOGBASE */
+#define TX4927_PCIC_G2PIOGBASE_BSDIS    0x0000002000000000ULL
+#define TX4927_PCIC_G2PIOGBASE_ECHG     0x0000001000000000ULL
+
+/* bits for PCICSTATUS/PCICMASK */
+#define TX4927_PCIC_PCICSTATUS_ALL      0x000007b8
+#define TX4927_PCIC_PCICSTATUS_PME      0x00000400
+#define TX4927_PCIC_PCICSTATUS_TLB      0x00000200
+#define TX4927_PCIC_PCICSTATUS_NIB      0x00000100
+#define TX4927_PCIC_PCICSTATUS_ZIB      0x00000080
+#define TX4927_PCIC_PCICSTATUS_PERR     0x00000020
+#define TX4927_PCIC_PCICSTATUS_SERR     0x00000010
+#define TX4927_PCIC_PCICSTATUS_GBE      0x00000008
+#define TX4927_PCIC_PCICSTATUS_IWB      0x00000002
+#define TX4927_PCIC_PCICSTATUS_E2PDONE  0x00000001
+
+/* bits for PCICCFG */
+#define TX4927_PCIC_PCICCFG_GBWC_MASK   0x0fff0000
+#define TX4927_PCIC_PCICCFG_HRST        0x00000800
+#define TX4927_PCIC_PCICCFG_SRST        0x00000400
+#define TX4927_PCIC_PCICCFG_IRBER       0x00000200
+#define TX4927_PCIC_PCICCFG_G2PMEN(ch)  (0x00000100>>(ch))
+#define TX4927_PCIC_PCICCFG_G2PM0EN     0x00000100
+#define TX4927_PCIC_PCICCFG_G2PM1EN     0x00000080
+#define TX4927_PCIC_PCICCFG_G2PM2EN     0x00000040
+#define TX4927_PCIC_PCICCFG_G2PIOEN     0x00000020
+#define TX4927_PCIC_PCICCFG_TCAR        0x00000010
+#define TX4927_PCIC_PCICCFG_ICAEN       0x00000008
+
+/* bits for P2GMnGBASE */
+#define TX4927_PCIC_P2GMnGBASE_TMEMEN   0x0000004000000000ULL
+#define TX4927_PCIC_P2GMnGBASE_TBSDIS   0x0000002000000000ULL
+#define TX4927_PCIC_P2GMnGBASE_TECHG    0x0000001000000000ULL
+
+/* bits for P2GIOGBASE */
+#define TX4927_PCIC_P2GIOGBASE_TIOEN    0x0000004000000000ULL
+#define TX4927_PCIC_P2GIOGBASE_TBSDIS   0x0000002000000000ULL
+#define TX4927_PCIC_P2GIOGBASE_TECHG    0x0000001000000000ULL
+
+#define TX4927_PCIC_IDSEL_AD_TO_SLOT(ad)        ((ad) - 11)
+#define TX4927_PCIC_MAX_DEVNU   TX4927_PCIC_IDSEL_AD_TO_SLOT(32)
+
+/* bits for PDMCFG */
+#define TX4927_PCIC_PDMCFG_RSTFIFO      0x00200000
+#define TX4927_PCIC_PDMCFG_EXFER        0x00100000
+#define TX4927_PCIC_PDMCFG_REQDLY_MASK  0x00003800
+#define TX4927_PCIC_PDMCFG_REQDLY_NONE  (0 << 11)
+#define TX4927_PCIC_PDMCFG_REQDLY_16    (1 << 11)
+#define TX4927_PCIC_PDMCFG_REQDLY_32    (2 << 11)
+#define TX4927_PCIC_PDMCFG_REQDLY_64    (3 << 11)
+#define TX4927_PCIC_PDMCFG_REQDLY_128   (4 << 11)
+#define TX4927_PCIC_PDMCFG_REQDLY_256   (5 << 11)
+#define TX4927_PCIC_PDMCFG_REQDLY_512   (6 << 11)
+#define TX4927_PCIC_PDMCFG_REQDLY_1024  (7 << 11)
+#define TX4927_PCIC_PDMCFG_ERRIE        0x00000400
+#define TX4927_PCIC_PDMCFG_NCCMPIE      0x00000200
+#define TX4927_PCIC_PDMCFG_NTCMPIE      0x00000100
+#define TX4927_PCIC_PDMCFG_CHNEN        0x00000080
+#define TX4927_PCIC_PDMCFG_XFRACT       0x00000040
+#define TX4927_PCIC_PDMCFG_BSWAP        0x00000020
+#define TX4927_PCIC_PDMCFG_XFRSIZE_MASK 0x0000000c
+#define TX4927_PCIC_PDMCFG_XFRSIZE_1DW  0x00000000
+#define TX4927_PCIC_PDMCFG_XFRSIZE_1QW  0x00000004
+#define TX4927_PCIC_PDMCFG_XFRSIZE_4QW  0x00000008
+#define TX4927_PCIC_PDMCFG_XFRDIRC      0x00000002
+#define TX4927_PCIC_PDMCFG_CHRST        0x00000001
+
+/* bits for PDMSTS */
+#define TX4927_PCIC_PDMSTS_REQCNT_MASK  0x3f000000
+#define TX4927_PCIC_PDMSTS_FIFOCNT_MASK 0x00f00000
+#define TX4927_PCIC_PDMSTS_FIFOWP_MASK  0x000c0000
+#define TX4927_PCIC_PDMSTS_FIFORP_MASK  0x00030000
+#define TX4927_PCIC_PDMSTS_ERRINT       0x00000800
+#define TX4927_PCIC_PDMSTS_DONEINT      0x00000400
+#define TX4927_PCIC_PDMSTS_CHNEN        0x00000200
+#define TX4927_PCIC_PDMSTS_XFRACT       0x00000100
+#define TX4927_PCIC_PDMSTS_ACCMP        0x00000080
+#define TX4927_PCIC_PDMSTS_NCCMP        0x00000040
+#define TX4927_PCIC_PDMSTS_NTCMP        0x00000020
+#define TX4927_PCIC_PDMSTS_CFGERR       0x00000008
+#define TX4927_PCIC_PDMSTS_PCIERR       0x00000004
+#define TX4927_PCIC_PDMSTS_CHNERR       0x00000002
+#define TX4927_PCIC_PDMSTS_DATAERR      0x00000001
+#define TX4927_PCIC_PDMSTS_ALL_CMP      0x000000e0
+#define TX4927_PCIC_PDMSTS_ALL_ERR      0x0000000f
+
+struct tx4927_pcic_reg __iomem *get_tx4927_pcicptr(
+        struct pci_controller *channel);
+void __init tx4927_pcic_setup(struct tx4927_pcic_reg __iomem *pcicptr,
+                              struct pci_controller *channel, int extarb);
+void tx4927_report_pcic_status(void);
+
+#endif /* __ASM_TXX9_TX4927PCIC_H */
diff --git a/include/asm-mips/tx4938/tx4938.h b/include/asm-mips/txx9/tx4938.h
index e8807f5c61e..12de68a4c10 100644
--- a/include/asm-mips/tx4938/tx4938.h
+++ b/include/asm-mips/txx9/tx4938.h
@@ -1,5 +1,4 @@
 /*
- * linux/include/asm-mips/tx4938/tx4938.h
  * Definitions for TX4937/TX4938
  * Copyright (C) 2000-2001 Toshiba Corporation
  *
@@ -10,17 +9,15 @@
  *
  * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
  */
-#ifndef __ASM_TX_BOARDS_TX4938_H
-#define __ASM_TX_BOARDS_TX4938_H
+#ifndef __ASM_TXX9_TX4938_H
+#define __ASM_TXX9_TX4938_H
+
+/* some controllers are compatible with 4927 */
+#include <asm/txx9/tx4927.h>
 
 #define tx4938_read_nfmc(addr) (*(volatile unsigned int *)(addr))
 #define tx4938_write_nfmc(b, addr) (*(volatile unsigned int *)(addr)) = (b)
 
-#define TX4938_NR_IRQ_LOCAL     TX4938_IRQ_PIC_BEG
-
-#define TX4938_IRQ_IRC_PCIC     (TX4938_NR_IRQ_LOCAL + TX4938_IR_PCIC)
-#define TX4938_IRQ_IRC_PCIERR   (TX4938_NR_IRQ_LOCAL + TX4938_IR_PCIERR)
-
 #define TX4938_PCIIO_0 0x10000000
 #define TX4938_PCIIO_1 0x01010000
 #define TX4938_PCIMEM_0 0x08000000
@@ -52,9 +49,6 @@
 #define TX4938_ACLC_REG         (TX4938_REG_BASE + 0xf700)
 #define TX4938_SPI_REG          (TX4938_REG_BASE + 0xf800)
 
-#ifdef __ASSEMBLY__
-#define _CONST64(c)     c
-#else
 #define _CONST64(c)     c##ull
 
 #include <asm/byteorder.h>
@@ -114,68 +108,6 @@ struct tx4938_dma_reg {
         endian_def_l2(unused0, mcr);
 };
 
-struct tx4938_pcic_reg {
-        volatile unsigned long pciid;
-        volatile unsigned long pcistatus;
-        volatile unsigned long pciccrev;
-        volatile unsigned long pcicfg1;
-        volatile unsigned long p2gm0plbase;             /* +10 */
-        volatile unsigned long p2gm0pubase;
-        volatile unsigned long p2gm1plbase;
-        volatile unsigned long p2gm1pubase;
-        volatile unsigned long p2gm2pbase;              /* +20 */
-        volatile unsigned long p2giopbase;
-        volatile unsigned long unused0;
-        volatile unsigned long pcisid;
-        volatile unsigned long unused1;         /* +30 */
-        volatile unsigned long pcicapptr;
-        volatile unsigned long unused2;
-        volatile unsigned long pcicfg2;
-        volatile unsigned long g2ptocnt;                /* +40 */
-        volatile unsigned long unused3[15];
-        volatile unsigned long g2pstatus;               /* +80 */
-        volatile unsigned long g2pmask;
-        volatile unsigned long pcisstatus;
-        volatile unsigned long pcimask;
-        volatile unsigned long p2gcfg;          /* +90 */
-        volatile unsigned long p2gstatus;
-        volatile unsigned long p2gmask;
-        volatile unsigned long p2gccmd;
-        volatile unsigned long unused4[24];             /* +a0 */
-        volatile unsigned long pbareqport;              /* +100 */
-        volatile unsigned long pbacfg;
-        volatile unsigned long pbastatus;
-        volatile unsigned long pbamask;
-        volatile unsigned long pbabm;           /* +110 */
-        volatile unsigned long pbacreq;
-        volatile unsigned long pbacgnt;
-        volatile unsigned long pbacstate;
-        volatile unsigned long long g2pmgbase[3];               /* +120 */
-        volatile unsigned long long g2piogbase;
-        volatile unsigned long g2pmmask[3];             /* +140 */
-        volatile unsigned long g2piomask;
-        volatile unsigned long long g2pmpbase[3];               /* +150 */
-        volatile unsigned long long g2piopbase;
-        volatile unsigned long pciccfg;         /* +170 */
-        volatile unsigned long pcicstatus;
-        volatile unsigned long pcicmask;
-        volatile unsigned long unused5;
-        volatile unsigned long long p2gmgbase[3];               /* +180 */
-        volatile unsigned long long p2giogbase;
-        volatile unsigned long g2pcfgadrs;              /* +1a0 */
-        volatile unsigned long g2pcfgdata;
-        volatile unsigned long unused6[8];
-        volatile unsigned long g2pintack;
-        volatile unsigned long g2pspc;
-        volatile unsigned long unused7[12];             /* +1d0 */
-        volatile unsigned long long pdmca;              /* +200 */
-        volatile unsigned long long pdmga;
-        volatile unsigned long long pdmpa;
-        volatile unsigned long long pdmctr;
-        volatile unsigned long long pdmcfg;             /* +220 */
-        volatile unsigned long long pdmsts;
-};
-
 struct tx4938_aclc_reg {
         volatile unsigned long acctlen;
         volatile unsigned long acctldis;
@@ -263,18 +195,18 @@ struct tx4938_sramc_reg {
 };
 
 struct tx4938_ccfg_reg {
-        volatile unsigned long long ccfg;
-        volatile unsigned long long crir;
-        volatile unsigned long long pcfg;
-        volatile unsigned long long tear;
-        volatile unsigned long long clkctr;
-        volatile unsigned long long unused0;
-        volatile unsigned long long garbc;
-        volatile unsigned long long unused1;
-        volatile unsigned long long unused2;
-        volatile unsigned long long ramp;
-        volatile unsigned long long unused3;
-        volatile unsigned long long jmpadr;
+        u64 ccfg;
+        u64 crir;
+        u64 pcfg;
+        u64 toea;
+        u64 clkctr;
+        u64 unused0;
+        u64 garbc;
+        u64 unused1;
+        u64 unused2;
+        u64 ramp;
+        u64 unused3;
+        u64 jmpadr;
 };
 
 #undef endian_def_l2
@@ -283,8 +215,6 @@ struct tx4938_ccfg_reg {
 #undef endian_def_b2s
 #undef endian_def_b4
 
-#endif /* __ASSEMBLY__ */
-
 /*
  * NDFMC
  */
@@ -336,6 +266,8 @@ struct tx4938_ccfg_reg {
 #define TX4938_IR_ETH0  TX4938_IR_INT(4)
 #define TX4938_IR_ETH1  TX4938_IR_INT(3)
 
+#define TX4938_IRC_INT  2       /* IP[2] in Status register */
+
 /*
  * CCFG
  */
@@ -361,7 +293,7 @@ struct tx4938_ccfg_reg {
 #define TX4938_CCFG_BEOW        0x00010000
 #define TX4938_CCFG_WR  0x00008000
 #define TX4938_CCFG_TOE 0x00004000
-#define TX4938_CCFG_PCIXARB     0x00002000
+#define TX4938_CCFG_PCIARB      0x00002000
 #define TX4938_CCFG_PCIDIVMODE_MASK     0x00001c00
 #define TX4938_CCFG_PCIDIVMODE_4        (0x1 << 10)
 #define TX4938_CCFG_PCIDIVMODE_4_5      (0x3 << 10)
@@ -437,110 +369,6 @@ struct tx4938_ccfg_reg {
 #define TX4938_CLKCTR_SIO0RST   0x00000002
 #define TX4938_CLKCTR_SIO1RST   0x00000001
 
-/* bits for G2PSTATUS/G2PMASK */
-#define TX4938_PCIC_G2PSTATUS_ALL       0x00000003
-#define TX4938_PCIC_G2PSTATUS_TTOE      0x00000002
-#define TX4938_PCIC_G2PSTATUS_RTOE      0x00000001
-
-/* bits for PCIMASK (see also PCI_STATUS_XXX in linux/pci.h */
-#define TX4938_PCIC_PCISTATUS_ALL       0x0000f900
-
-/* bits for PBACFG */
-#define TX4938_PCIC_PBACFG_FIXPA        0x00000008
-#define TX4938_PCIC_PBACFG_RPBA 0x00000004
-#define TX4938_PCIC_PBACFG_PBAEN        0x00000002
-#define TX4938_PCIC_PBACFG_BMCEN        0x00000001
-
-/* bits for G2PMnGBASE */
-#define TX4938_PCIC_G2PMnGBASE_BSDIS    _CONST64(0x0000002000000000)
-#define TX4938_PCIC_G2PMnGBASE_ECHG     _CONST64(0x0000001000000000)
-
-/* bits for G2PIOGBASE */
-#define TX4938_PCIC_G2PIOGBASE_BSDIS    _CONST64(0x0000002000000000)
-#define TX4938_PCIC_G2PIOGBASE_ECHG     _CONST64(0x0000001000000000)
-
-/* bits for PCICSTATUS/PCICMASK */
-#define TX4938_PCIC_PCICSTATUS_ALL      0x000007b8
-#define TX4938_PCIC_PCICSTATUS_PME      0x00000400
-#define TX4938_PCIC_PCICSTATUS_TLB      0x00000200
-#define TX4938_PCIC_PCICSTATUS_NIB      0x00000100
-#define TX4938_PCIC_PCICSTATUS_ZIB      0x00000080
-#define TX4938_PCIC_PCICSTATUS_PERR     0x00000020
-#define TX4938_PCIC_PCICSTATUS_SERR     0x00000010
-#define TX4938_PCIC_PCICSTATUS_GBE      0x00000008
-#define TX4938_PCIC_PCICSTATUS_IWB      0x00000002
-#define TX4938_PCIC_PCICSTATUS_E2PDONE  0x00000001
-
-/* bits for PCICCFG */
-#define TX4938_PCIC_PCICCFG_GBWC_MASK   0x0fff0000
-#define TX4938_PCIC_PCICCFG_HRST        0x00000800
-#define TX4938_PCIC_PCICCFG_SRST        0x00000400
-#define TX4938_PCIC_PCICCFG_IRBER       0x00000200
-#define TX4938_PCIC_PCICCFG_G2PMEN(ch)  (0x00000100>>(ch))
-#define TX4938_PCIC_PCICCFG_G2PM0EN     0x00000100
-#define TX4938_PCIC_PCICCFG_G2PM1EN     0x00000080
-#define TX4938_PCIC_PCICCFG_G2PM2EN     0x00000040
-#define TX4938_PCIC_PCICCFG_G2PIOEN     0x00000020
-#define TX4938_PCIC_PCICCFG_TCAR        0x00000010
-#define TX4938_PCIC_PCICCFG_ICAEN       0x00000008
-
-/* bits for P2GMnGBASE */
-#define TX4938_PCIC_P2GMnGBASE_TMEMEN   _CONST64(0x0000004000000000)
-#define TX4938_PCIC_P2GMnGBASE_TBSDIS   _CONST64(0x0000002000000000)
-#define TX4938_PCIC_P2GMnGBASE_TECHG    _CONST64(0x0000001000000000)
-
-/* bits for P2GIOGBASE */
-#define TX4938_PCIC_P2GIOGBASE_TIOEN    _CONST64(0x0000004000000000)
-#define TX4938_PCIC_P2GIOGBASE_TBSDIS   _CONST64(0x0000002000000000)
-#define TX4938_PCIC_P2GIOGBASE_TECHG    _CONST64(0x0000001000000000)
-
-#define TX4938_PCIC_IDSEL_AD_TO_SLOT(ad)        ((ad) - 11)
-#define TX4938_PCIC_MAX_DEVNU   TX4938_PCIC_IDSEL_AD_TO_SLOT(32)
-
-/* bits for PDMCFG */
-#define TX4938_PCIC_PDMCFG_RSTFIFO      0x00200000
-#define TX4938_PCIC_PDMCFG_EXFER        0x00100000
-#define TX4938_PCIC_PDMCFG_REQDLY_MASK  0x00003800
-#define TX4938_PCIC_PDMCFG_REQDLY_NONE  (0 << 11)
-#define TX4938_PCIC_PDMCFG_REQDLY_16    (1 << 11)
-#define TX4938_PCIC_PDMCFG_REQDLY_32    (2 << 11)
-#define TX4938_PCIC_PDMCFG_REQDLY_64    (3 << 11)
-#define TX4938_PCIC_PDMCFG_REQDLY_128   (4 << 11)
-#define TX4938_PCIC_PDMCFG_REQDLY_256   (5 << 11)
-#define TX4938_PCIC_PDMCFG_REQDLY_512   (6 << 11)
-#define TX4938_PCIC_PDMCFG_REQDLY_1024  (7 << 11)
-#define TX4938_PCIC_PDMCFG_ERRIE        0x00000400
-#define TX4938_PCIC_PDMCFG_NCCMPIE      0x00000200
-#define TX4938_PCIC_PDMCFG_NTCMPIE      0x00000100
-#define TX4938_PCIC_PDMCFG_CHNEN        0x00000080
-#define TX4938_PCIC_PDMCFG_XFRACT       0x00000040
-#define TX4938_PCIC_PDMCFG_BSWAP        0x00000020
-#define TX4938_PCIC_PDMCFG_XFRSIZE_MASK 0x0000000c
-#define TX4938_PCIC_PDMCFG_XFRSIZE_1DW  0x00000000
-#define TX4938_PCIC_PDMCFG_XFRSIZE_1QW  0x00000004
-#define TX4938_PCIC_PDMCFG_XFRSIZE_4QW  0x00000008
-#define TX4938_PCIC_PDMCFG_XFRDIRC      0x00000002
-#define TX4938_PCIC_PDMCFG_CHRST        0x00000001
-
-/* bits for PDMSTS */
-#define TX4938_PCIC_PDMSTS_REQCNT_MASK  0x3f000000
-#define TX4938_PCIC_PDMSTS_FIFOCNT_MASK 0x00f00000
-#define TX4938_PCIC_PDMSTS_FIFOWP_MASK  0x000c0000
-#define TX4938_PCIC_PDMSTS_FIFORP_MASK  0x00030000
-#define TX4938_PCIC_PDMSTS_ERRINT       0x00000800
-#define TX4938_PCIC_PDMSTS_DONEINT      0x00000400
-#define TX4938_PCIC_PDMSTS_CHNEN        0x00000200
-#define TX4938_PCIC_PDMSTS_XFRACT       0x00000100
-#define TX4938_PCIC_PDMSTS_ACCMP        0x00000080
-#define TX4938_PCIC_PDMSTS_NCCMP        0x00000040
-#define TX4938_PCIC_PDMSTS_NTCMP        0x00000020
-#define TX4938_PCIC_PDMSTS_CFGERR       0x00000008
-#define TX4938_PCIC_PDMSTS_PCIERR       0x00000004
-#define TX4938_PCIC_PDMSTS_CHNERR       0x00000002
-#define TX4938_PCIC_PDMSTS_DATAERR      0x00000001
-#define TX4938_PCIC_PDMSTS_ALL_CMP      0x000000e0
-#define TX4938_PCIC_PDMSTS_ALL_ERR      0x0000000f
-
 /*
  * DMA
  */
@@ -596,15 +424,15 @@ struct tx4938_ccfg_reg {
 #define TX4938_DMA_CSR_DESERR   0x00000002
 #define TX4938_DMA_CSR_SORERR   0x00000001
 
-#ifndef __ASSEMBLY__
-
 #define tx4938_sdramcptr        ((struct tx4938_sdramc_reg *)TX4938_SDRAMC_REG)
 #define tx4938_ebuscptr         ((struct tx4938_ebusc_reg *)TX4938_EBUSC_REG)
 #define tx4938_dmaptr(ch)       ((struct tx4938_dma_reg *)TX4938_DMA_REG(ch))
 #define tx4938_ndfmcptr         ((struct tx4938_ndfmc_reg *)TX4938_NDFMC_REG)
-#define tx4938_pcicptr          ((struct tx4938_pcic_reg *)TX4938_PCIC_REG)
-#define tx4938_pcic1ptr         ((struct tx4938_pcic_reg *)TX4938_PCIC1_REG)
-#define tx4938_ccfgptr          ((struct tx4938_ccfg_reg *)TX4938_CCFG_REG)
+#define tx4938_pcicptr          tx4927_pcicptr
+#define tx4938_pcic1ptr \
+                ((struct tx4927_pcic_reg __iomem *)TX4938_PCIC1_REG)
+#define tx4938_ccfgptr \
+                ((struct tx4938_ccfg_reg __iomem *)TX4938_CCFG_REG)
 #define tx4938_sioptr(ch)       ((struct tx4938_sio_reg *)TX4938_SIO_REG(ch))
 #define tx4938_pioptr           ((struct txx9_pio_reg __iomem *)TX4938_PIO_REG)
 #define tx4938_aclcptr          ((struct tx4938_aclc_reg *)TX4938_ACLC_REG)
@@ -612,17 +440,26 @@ struct tx4938_ccfg_reg {
 #define tx4938_sramcptr         ((struct tx4938_sramc_reg *)TX4938_SRAMC_REG)
 
 
-#define TX4938_REV_MAJ_MIN()    ((unsigned long)tx4938_ccfgptr->crir & 0x00ff)
-#define TX4938_REV_PCODE()      ((unsigned long)tx4938_ccfgptr->crir >> 16)
+#define TX4938_REV_PCODE()      \
+        ((__u32)__raw_readq(&tx4938_ccfgptr->crir) >> 16)
+
+#define tx4938_ccfg_clear(bits) tx4927_ccfg_clear(bits)
+#define tx4938_ccfg_set(bits)   tx4927_ccfg_set(bits)
+#define tx4938_ccfg_change(change, new) tx4927_ccfg_change(change, new)
 
 #define TX4938_SDRAMC_BA(ch)    ((tx4938_sdramcptr->cr[ch] >> 49) << 21)
 #define TX4938_SDRAMC_SIZE(ch)  (((tx4938_sdramcptr->cr[ch] >> 33) + 1) << 21)
 
+#define TX4938_EBUSC_CR(ch)     __raw_readq(&tx4938_ebuscptr->cr[(ch)])
 #define TX4938_EBUSC_BA(ch)     ((tx4938_ebuscptr->cr[ch] >> 48) << 20)
 #define TX4938_EBUSC_SIZE(ch)   \
         (0x00100000 << ((unsigned long)(tx4938_ebuscptr->cr[ch] >> 8) & 0xf))
 
-
-#endif /* !__ASSEMBLY__ */
+int tx4938_report_pciclk(void);
+void tx4938_report_pci1clk(void);
+int tx4938_pciclk66_setup(void);
+struct pci_dev;
+int tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot);
+void tx4938_irq_init(void);
 
 #endif
diff --git a/include/asm-mips/jmr3927/txx927.h b/include/asm-mips/txx9/txx927.h
index 25dcf2feb09..97dd7ad1a89 100644
--- a/include/asm-mips/jmr3927/txx927.h
+++ b/include/asm-mips/txx9/txx927.h
@@ -7,8 +7,8 @@
  *
  * Copyright (C) 2000 Toshiba Corporation
  */
-#ifndef __ASM_TXX927_H
-#define __ASM_TXX927_H
+#ifndef __ASM_TXX9_TXX927_H
+#define __ASM_TXX9_TXX927_H
 
 struct txx927_sio_reg {
         volatile unsigned long lcr;
@@ -118,4 +118,4 @@ struct txx927_sio_reg {
  * PIO
  */
 
-#endif /* __ASM_TXX927_H */
+#endif /* __ASM_TXX9_TXX927_H */
diff --git a/include/asm-mips/vr41xx/cmbvr4133.h b/include/asm-mips/vr41xx/cmbvr4133.h
deleted file mode 100644
index 42300037d59..00000000000
--- a/include/asm-mips/vr41xx/cmbvr4133.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * include/asm-mips/vr41xx/cmbvr4133.h
- *
- * Include file for NEC CMB-VR4133.
- *
- * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
- *         Jun Sun <jsun@mvista.com, or source@mvista.com> and
- *         Alex Sapkov <asapkov@ru.mvista.com>
- *
- * 2002-2004 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-#ifndef __NEC_CMBVR4133_H
-#define __NEC_CMBVR4133_H
-
-#include <asm/vr41xx/irq.h>
-
-/*
- * General-Purpose I/O Pin Number
- */
-#define CMBVR41XX_INTA_PIN              1
-#define CMBVR41XX_INTB_PIN              1
-#define CMBVR41XX_INTC_PIN              3
-#define CMBVR41XX_INTD_PIN              1
-#define CMBVR41XX_INTE_PIN              1
-
-/*
- * Interrupt Number
- */
-#define CMBVR41XX_INTA_IRQ              GIU_IRQ(CMBVR41XX_INTA_PIN)
-#define CMBVR41XX_INTB_IRQ              GIU_IRQ(CMBVR41XX_INTB_PIN)
-#define CMBVR41XX_INTC_IRQ              GIU_IRQ(CMBVR41XX_INTC_PIN)
-#define CMBVR41XX_INTD_IRQ              GIU_IRQ(CMBVR41XX_INTD_PIN)
-#define CMBVR41XX_INTE_IRQ              GIU_IRQ(CMBVR41XX_INTE_PIN)
-
-#define I8259A_IRQ_BASE                 72
-#define I8259_IRQ(x)                    (I8259A_IRQ_BASE + (x))
-#define TIMER_IRQ                       I8259_IRQ(0)
-#define KEYBOARD_IRQ                    I8259_IRQ(1)
-#define I8259_SLAVE_IRQ                 I8259_IRQ(2)
-#define UART3_IRQ                       I8259_IRQ(3)
-#define UART1_IRQ                       I8259_IRQ(4)
-#define UART2_IRQ                       I8259_IRQ(5)
-#define FDC_IRQ                         I8259_IRQ(6)
-#define PARPORT_IRQ                     I8259_IRQ(7)
-#define RTC_IRQ                         I8259_IRQ(8)
-#define USB_IRQ                         I8259_IRQ(9)
-#define I8259_INTA_IRQ                  I8259_IRQ(10)
-#define AUDIO_IRQ                       I8259_IRQ(11)
-#define AUX_IRQ                         I8259_IRQ(12)
-#define IDE_PRIMARY_IRQ                 I8259_IRQ(14)
-#define IDE_SECONDARY_IRQ               I8259_IRQ(15)
-
-#endif /* __NEC_CMBVR4133_H */
diff --git a/include/asm-parisc/smp.h b/include/asm-parisc/smp.h
index 306f4950e32..398cdbaf4e5 100644
--- a/include/asm-parisc/smp.h
+++ b/include/asm-parisc/smp.h
@@ -30,6 +30,9 @@ extern cpumask_t cpu_online_map;
 extern void smp_send_reschedule(int cpu);
 extern void smp_send_all_nop(void);
 
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
 #endif /* !ASSEMBLY */
 
 /*
diff --git a/include/asm-powerpc/smp.h b/include/asm-powerpc/smp.h
index 505f35bacaa..c663a1fa77c 100644
--- a/include/asm-powerpc/smp.h
+++ b/include/asm-powerpc/smp.h
@@ -67,10 +67,7 @@ DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
  * in /proc/interrupts will be wrong!!! --Troy */
 #define PPC_MSG_CALL_FUNCTION   0
 #define PPC_MSG_RESCHEDULE      1
-/* This is unused now */
-#if 0
-#define PPC_MSG_MIGRATE_TASK    2
-#endif
+#define PPC_MSG_CALL_FUNC_SINGLE        2
 #define PPC_MSG_DEBUGGER_BREAK  3
 
 void smp_init_iSeries(void);
@@ -117,6 +114,9 @@ extern void smp_generic_take_timebase(void);
 
 extern struct smp_ops_t *smp_ops;
 
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
diff --git a/include/asm-sh/smp.h b/include/asm-sh/smp.h
index 9c8d34b07eb..593343cd26e 100644
--- a/include/asm-sh/smp.h
+++ b/include/asm-sh/smp.h
@@ -26,18 +26,10 @@ extern int __cpu_logical_map[NR_CPUS];
 
 #define NO_PROC_ID      (-1)
 
-struct smp_fn_call_struct {
-        spinlock_t lock;
-        atomic_t   finished;
-        void (*fn)(void *);
-        void *data;
-};
-
-extern struct smp_fn_call_struct smp_fn_call;
-
 #define SMP_MSG_FUNCTION        0
 #define SMP_MSG_RESCHEDULE      1
-#define SMP_MSG_NR              2
+#define SMP_MSG_FUNCTION_SINGLE 2
+#define SMP_MSG_NR              3
 
 void plat_smp_setup(void);
 void plat_prepare_cpus(unsigned int max_cpus);
@@ -46,6 +38,8 @@ void plat_start_cpu(unsigned int cpu, unsigned long entry_point);
 void plat_send_ipi(unsigned int cpu, unsigned int message);
 int plat_register_ipi_handler(unsigned int message,
                               void (*handler)(void *), void *arg);
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi(cpumask_t mask);
 
 #else
 
diff --git a/include/asm-sparc/smp.h b/include/asm-sparc/smp.h
index e6d56159972..b61e74bea06 100644
--- a/include/asm-sparc/smp.h
+++ b/include/asm-sparc/smp.h
@@ -72,7 +72,7 @@ static inline void xc5(smpfunc_t func, unsigned long arg1, unsigned long arg2,
                            unsigned long arg3, unsigned long arg4, unsigned long arg5)
 { smp_cross_call(func, arg1, arg2, arg3, arg4, arg5); }
 
-static inline int smp_call_function(void (*func)(void *info), void *info, int nonatomic, int wait)
+static inline int smp_call_function(void (*func)(void *info), void *info, int wait)
 {
         xc1((smpfunc_t)func, (unsigned long)info);
         return 0;
diff --git a/include/asm-x86/dwarf2.h b/include/asm-x86/dwarf2.h
index 0bfe250894f..738bb9fb3e5 100644
--- a/include/asm-x86/dwarf2.h
+++ b/include/asm-x86/dwarf2.h
@@ -38,23 +38,23 @@
 
 /* Due to the structure of pre-exisiting code, don't use assembler line
    comment character # to ignore the arguments. Instead, use a dummy macro. */
-.macro ignore a=0, b=0, c=0, d=0
+.macro cfi_ignore a=0, b=0, c=0, d=0
 .endm
 
-#define CFI_STARTPROC   ignore
-#define CFI_ENDPROC     ignore
-#define CFI_DEF_CFA     ignore
-#define CFI_DEF_CFA_REGISTER    ignore
-#define CFI_DEF_CFA_OFFSET      ignore
-#define CFI_ADJUST_CFA_OFFSET   ignore
-#define CFI_OFFSET      ignore
-#define CFI_REL_OFFSET  ignore
-#define CFI_REGISTER    ignore
-#define CFI_RESTORE     ignore
-#define CFI_REMEMBER_STATE ignore
-#define CFI_RESTORE_STATE ignore
-#define CFI_UNDEFINED ignore
-#define CFI_SIGNAL_FRAME ignore
+#define CFI_STARTPROC   cfi_ignore
+#define CFI_ENDPROC     cfi_ignore
+#define CFI_DEF_CFA     cfi_ignore
+#define CFI_DEF_CFA_REGISTER    cfi_ignore
+#define CFI_DEF_CFA_OFFSET      cfi_ignore
+#define CFI_ADJUST_CFA_OFFSET   cfi_ignore
+#define CFI_OFFSET      cfi_ignore
+#define CFI_REL_OFFSET  cfi_ignore
+#define CFI_REGISTER    cfi_ignore
+#define CFI_RESTORE     cfi_ignore
+#define CFI_REMEMBER_STATE cfi_ignore
+#define CFI_RESTORE_STATE cfi_ignore
+#define CFI_UNDEFINED cfi_ignore
+#define CFI_SIGNAL_FRAME cfi_ignore
 
 #endif
 
diff --git a/include/asm-x86/hw_irq.h b/include/asm-x86/hw_irq.h
index 18f067c310f..77ba51df566 100644
--- a/include/asm-x86/hw_irq.h
+++ b/include/asm-x86/hw_irq.h
@@ -48,6 +48,7 @@ extern void irq_move_cleanup_interrupt(void);
 extern void threshold_interrupt(void);
 
 extern void call_function_interrupt(void);
+extern void call_function_single_interrupt(void);
 
 /* PIC specific functions */
 extern void disable_8259A_irq(unsigned int irq);
diff --git a/include/asm-x86/irq_vectors.h b/include/asm-x86/irq_vectors.h
index 0ac864ef3cd..90b1d1f12f0 100644
--- a/include/asm-x86/irq_vectors.h
+++ b/include/asm-x86/irq_vectors.h
@@ -64,6 +64,7 @@
 # define INVALIDATE_TLB_VECTOR          0xfd
 # define RESCHEDULE_VECTOR              0xfc
 # define CALL_FUNCTION_VECTOR           0xfb
+# define CALL_FUNCTION_SINGLE_VECTOR    0xfa
 # define THERMAL_APIC_VECTOR            0xf0
 
 #else
@@ -72,6 +73,7 @@
 #define ERROR_APIC_VECTOR               0xfe
 #define RESCHEDULE_VECTOR               0xfd
 #define CALL_FUNCTION_VECTOR            0xfc
+#define CALL_FUNCTION_SINGLE_VECTOR     0xfb
 #define THERMAL_APIC_VECTOR             0xfa
 #define THRESHOLD_APIC_VECTOR           0xf9
 #define INVALIDATE_TLB_VECTOR_END       0xf7
@@ -143,6 +145,7 @@
 #define VIC_RESCHEDULE_CPI              4
 #define VIC_ENABLE_IRQ_CPI              5
 #define VIC_CALL_FUNCTION_CPI           6
+#define VIC_CALL_FUNCTION_SINGLE_CPI    7
 
 /* Now the QIC CPIs:  Since we don't need the two initial levels,
  * these are 2 less than the VIC CPIs */
@@ -152,9 +155,10 @@
 #define QIC_RESCHEDULE_CPI              (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET)
 #define QIC_ENABLE_IRQ_CPI              (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET)
 #define QIC_CALL_FUNCTION_CPI           (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET)
+#define QIC_CALL_FUNCTION_SINGLE_CPI    (VIC_CALL_FUNCTION_SINGLE_CPI - QIC_CPI_OFFSET)
 
 #define VIC_START_FAKE_CPI              VIC_TIMER_CPI
-#define VIC_END_FAKE_CPI                VIC_CALL_FUNCTION_CPI
+#define VIC_END_FAKE_CPI                VIC_CALL_FUNCTION_SINGLE_CPI
 
 /* this is the SYS_INT CPI. */
 #define VIC_SYS_INT                     8
diff --git a/include/asm-x86/mach-default/entry_arch.h b/include/asm-x86/mach-default/entry_arch.h
index bc861469bdb..9283b60a1dd 100644
--- a/include/asm-x86/mach-default/entry_arch.h
+++ b/include/asm-x86/mach-default/entry_arch.h
@@ -13,6 +13,7 @@
 BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
 BUILD_INTERRUPT(invalidate_interrupt,INVALIDATE_TLB_VECTOR)
 BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
+BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR)
 #endif
 
 /*
diff --git a/include/asm-x86/mach-visws/entry_arch.h b/include/asm-x86/mach-visws/entry_arch.h
index b183fa6d83d..86be554342d 100644
--- a/include/asm-x86/mach-visws/entry_arch.h
+++ b/include/asm-x86/mach-visws/entry_arch.h
@@ -1,23 +1,5 @@
 /*
- * The following vectors are part of the Linux architecture, there
- * is no hardware IRQ pin equivalent for them, they are triggered
- * through the ICC by us (IPIs)
+ * VISWS uses the standard Linux entry points:
  */
-#ifdef CONFIG_X86_SMP
-BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
-BUILD_INTERRUPT(invalidate_interrupt,INVALIDATE_TLB_VECTOR)
-BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
-#endif
 
-/*
- * every pentium local APIC has two 'local interrupts', with a
- * soft-definable vector attached to both interrupts, one of
- * which is a timer interrupt, the other one is error counter
- * overflow. Linux uses the local APIC timer interrupt to get
- * a much simpler SMP time architecture:
- */
-#ifdef CONFIG_X86_LOCAL_APIC
-BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
-BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
-BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
-#endif
+#include "../mach-default/entry_arch.h"
diff --git a/include/asm-x86/mach-voyager/entry_arch.h b/include/asm-x86/mach-voyager/entry_arch.h
index 4a1e1e8c10b..ae52624b593 100644
--- a/include/asm-x86/mach-voyager/entry_arch.h
+++ b/include/asm-x86/mach-voyager/entry_arch.h
@@ -23,4 +23,4 @@ BUILD_INTERRUPT(qic_invalidate_interrupt, QIC_INVALIDATE_CPI);
 BUILD_INTERRUPT(qic_reschedule_interrupt, QIC_RESCHEDULE_CPI);
 BUILD_INTERRUPT(qic_enable_irq_interrupt, QIC_ENABLE_IRQ_CPI);
 BUILD_INTERRUPT(qic_call_function_interrupt, QIC_CALL_FUNCTION_CPI);
-
+BUILD_INTERRUPT(qic_call_function_single_interrupt, QIC_CALL_FUNCTION_SINGLE_CPI);
diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h
index 2e221f1ce0b..c2784b3e0b7 100644
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@ -50,9 +50,9 @@ struct smp_ops {
 
         void (*smp_send_stop)(void);
         void (*smp_send_reschedule)(int cpu);
-        int (*smp_call_function_mask)(cpumask_t mask,
-                                      void (*func)(void *info), void *info,
-                                      int wait);
+
+        void (*send_call_func_ipi)(cpumask_t mask);
+        void (*send_call_func_single_ipi)(int cpu);
 };
 
 /* Globals due to paravirt */
@@ -94,17 +94,22 @@ static inline void smp_send_reschedule(int cpu)
         smp_ops.smp_send_reschedule(cpu);
 }
 
-static inline int smp_call_function_mask(cpumask_t mask,
-                                         void (*func) (void *info), void *info,
-                                         int wait)
+static inline void arch_send_call_function_single_ipi(int cpu)
+{
+        smp_ops.send_call_func_single_ipi(cpu);
+}
+
+static inline void arch_send_call_function_ipi(cpumask_t mask)
 {
-        return smp_ops.smp_call_function_mask(mask, func, info, wait);
+        smp_ops.send_call_func_ipi(mask);
 }
 
 void native_smp_prepare_boot_cpu(void);
 void native_smp_prepare_cpus(unsigned int max_cpus);
 void native_smp_cpus_done(unsigned int max_cpus);
 int native_cpu_up(unsigned int cpunum);
+void native_send_call_func_ipi(cpumask_t mask);
+void native_send_call_func_single_ipi(int cpu);
 
 extern int __cpu_disable(void);
 extern void __cpu_die(unsigned int cpu);
@@ -197,7 +202,5 @@ static inline int hard_smp_processor_id(void)
 extern void cpu_uninit(void);
 #endif
 
-extern void lock_ipi_call_lock(void);
-extern void unlock_ipi_call_lock(void);
 #endif /* __ASSEMBLY__ */
 #endif
diff --git a/include/asm-x86/xen/events.h b/include/asm-x86/xen/events.h
index 596312a7bfc..f8d57ea1f05 100644
--- a/include/asm-x86/xen/events.h
+++ b/include/asm-x86/xen/events.h
@@ -4,6 +4,7 @@
 enum ipi_vector {
         XEN_RESCHEDULE_VECTOR,
         XEN_CALL_FUNCTION_VECTOR,
+        XEN_CALL_FUNCTION_SINGLE_VECTOR,
 
         XEN_NR_IPIS,
 };
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 0764b662b33..1c1b13e2922 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1089,6 +1089,7 @@ extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size);
 extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size);
 
 extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
+extern void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev);
 extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);
 
 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 1ffd8bfdc4c..32a441b05fd 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -651,7 +651,6 @@ extern void generic_make_request(struct bio *bio);
 extern void blk_rq_init(struct request_queue *q, struct request *rq);
 extern void blk_put_request(struct request *);
 extern void __blk_put_request(struct request_queue *, struct request *);
-extern void blk_end_sync_rq(struct request *rq, int error);
 extern struct request *blk_get_request(struct request_queue *, int, gfp_t);
 extern void blk_insert_request(struct request_queue *, struct request *, int, void *);
 extern void blk_requeue_request(struct request_queue *, struct request *);
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index d982eb89c77..98202c672fd 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -3,6 +3,7 @@
 
 #include <asm/atomic.h>
 #include <linux/list.h>
+#include <linux/rculist.h>
 #include <linux/spinlock.h>
 #include <linux/cache.h>
 #include <linux/rcupdate.h>
diff --git a/include/linux/fs.h b/include/linux/fs.h
index faac13e2cc5..52e510a0aec 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1740,6 +1740,8 @@ extern int wait_on_page_writeback_range(struct address_space *mapping,
                                 pgoff_t start, pgoff_t end);
 extern int __filemap_fdatawrite_range(struct address_space *mapping,
                                 loff_t start, loff_t end, int sync_mode);
+extern int filemap_fdatawrite_range(struct address_space *mapping,
+                                loff_t start, loff_t end);
 
 extern long do_fsync(struct file *file, int datasync);
 extern void sync_supers(void);
diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h
index 77afbb60fd1..0177d280f73 100644
--- a/include/linux/i2c-algo-pcf.h
+++ b/include/linux/i2c-algo-pcf.h
@@ -33,9 +33,11 @@ struct i2c_algo_pcf_data {
         int  (*getclock) (void *data);
         void (*waitforpin) (void);
 
-        /* local settings */
-        int udelay;
-        int timeout;
+        /* Multi-master lost arbitration back-off delay (msecs)
+         * This should be set by the bus adapter or knowledgable client
+         * if bus is multi-mastered, else zero
+         */
+        unsigned long lab_mdelay;
 };
 
 int i2c_pcf_add_bus(struct i2c_adapter *);
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 580acc93903..ef13b7c66df 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -91,8 +91,6 @@
 #define I2C_DRIVERID_M52790     95      /* Mitsubishi M52790SP/FP AV switch */
 #define I2C_DRIVERID_CS5345     96      /* cs5345 audio processor       */
 
-#define I2C_DRIVERID_I2CDEV     900
-
 #define I2C_DRIVERID_OV7670 1048        /* Omnivision 7670 camera */
 
 /*
@@ -111,7 +109,6 @@
 #define I2C_HW_B_RIVA           0x010010 /* Riva based graphics cards */
 #define I2C_HW_B_IOC            0x010011 /* IOC bit-wiggling */
 #define I2C_HW_B_IXP2000        0x010016 /* GPIO on IXP2000 systems */
-#define I2C_HW_B_S3VIA          0x010018 /* S3Via ProSavage adapter */
 #define I2C_HW_B_ZR36067        0x010019 /* Zoran-36057/36067 based boards */
 #define I2C_HW_B_PCILYNX        0x01001a /* TI PCILynx I2C adapter */
 #define I2C_HW_B_CX2388x        0x01001b /* connexant 2388x based tv cards */
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 8dc73013219..08be0d21864 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -35,6 +35,8 @@
 #include <linux/sched.h>        /* for completion */
 #include <linux/mutex.h>
 
+extern struct bus_type i2c_bus_type;
+
 /* --- General options ------------------------------------------------ */
 
 struct i2c_msg;
@@ -43,6 +45,7 @@ struct i2c_adapter;
 struct i2c_client;
 struct i2c_driver;
 union i2c_smbus_data;
+struct i2c_board_info;
 
 /*
  * The master routines are the ones normally used to transmit data to devices
@@ -69,9 +72,8 @@ extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr,
                            union i2c_smbus_data * data);
 
 /* Now follow the 'nice' access routines. These also document the calling
-   conventions of smbus_access. */
+   conventions of i2c_smbus_xfer. */
 
-extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
 extern s32 i2c_smbus_read_byte(struct i2c_client * client);
 extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value);
 extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command);
@@ -93,15 +95,33 @@ extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client,
                                           u8 command, u8 length,
                                           const u8 *values);
 
-/*
- * A driver is capable of handling one or more physical devices present on
- * I2C adapters. This information is used to inform the driver of adapter
- * events.
+/**
+ * struct i2c_driver - represent an I2C device driver
+ * @class: What kind of i2c device we instantiate (for detect)
+ * @detect: Callback for device detection
+ * @address_data: The I2C addresses to probe, ignore or force (for detect)
+ * @clients: List of detected clients we created (for i2c-core use only)
  *
  * The driver.owner field should be set to the module owner of this driver.
  * The driver.name field should be set to the name of this driver.
+ *
+ * For automatic device detection, both @detect and @address_data must
+ * be defined. @class should also be set, otherwise only devices forced
+ * with module parameters will be created. The detect function must
+ * fill at least the name field of the i2c_board_info structure it is
+ * handed upon successful detection, and possibly also the flags field.
+ *
+ * If @detect is missing, the driver will still work fine for enumerated
+ * devices. Detected devices simply won't be supported. This is expected
+ * for the many I2C/SMBus devices which can't be detected reliably, and
+ * the ones which can always be enumerated in practice.
+ *
+ * The i2c_client structure which is handed to the @detect callback is
+ * not a real i2c_client. It is initialized just enough so that you can
+ * call i2c_smbus_read_byte_data and friends on it. Don't do anything
+ * else with it. In particular, calling dev_dbg and friends on it is
+ * not allowed.
  */
-
 struct i2c_driver {
         int id;
         unsigned int class;
@@ -141,6 +161,11 @@ struct i2c_driver {
 
         struct device_driver driver;
         const struct i2c_device_id *id_table;
+
+        /* Device detection callback for automatic device creation */
+        int (*detect)(struct i2c_client *, int kind, struct i2c_board_info *);
+        const struct i2c_client_address_data *address_data;
+        struct list_head clients;
 };
 #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
 
@@ -156,6 +181,7 @@ struct i2c_driver {
  * @dev: Driver model device node for the slave.
  * @irq: indicates the IRQ generated by this device (if any)
  * @list: list of active/busy clients (DEPRECATED)
+ * @detected: member of an i2c_driver.clients list
  * @released: used to synchronize client releases & detaches and references
  *
  * An i2c_client identifies a single device (i.e. chip) connected to an
@@ -173,6 +199,7 @@ struct i2c_client {
         struct device dev;              /* the device structure         */
         int irq;                        /* irq issued by device         */
         struct list_head list;          /* DEPRECATED */
+        struct list_head detected;
         struct completion released;
 };
 #define to_i2c_client(d) container_of(d, struct i2c_client, dev)
@@ -350,10 +377,11 @@ static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
 #define I2C_CLASS_HWMON         (1<<0)  /* lm_sensors, ... */
 #define I2C_CLASS_TV_ANALOG     (1<<1)  /* bttv + friends */
 #define I2C_CLASS_TV_DIGITAL    (1<<2)  /* dvb cards */
-#define I2C_CLASS_DDC           (1<<3)  /* i2c-matroxfb ? */
+#define I2C_CLASS_DDC           (1<<3)  /* DDC bus on graphics adapters */
 #define I2C_CLASS_CAM_ANALOG    (1<<4)  /* camera with analog CCD */
 #define I2C_CLASS_CAM_DIGITAL   (1<<5)  /* most webcams */
 #define I2C_CLASS_SOUND         (1<<6)  /* sound devices */
+#define I2C_CLASS_SPD           (1<<7)  /* SPD EEPROMs and similar */
 #define I2C_CLASS_ALL           (UINT_MAX) /* all of the above */
 
 /* i2c_client_address_data is the struct for holding default client
@@ -537,7 +565,7 @@ union i2c_smbus_data {
                                /* and one more for user-space compatibility */
 };
 
-/* smbus_access read or write markers */
+/* i2c_smbus_xfer read or write markers */
 #define I2C_SMBUS_READ  1
 #define I2C_SMBUS_WRITE 0
 
diff --git a/include/linux/i2c/at24.h b/include/linux/i2c/at24.h
new file mode 100644
index 00000000000..f6edd522a92
--- /dev/null
+++ b/include/linux/i2c/at24.h
@@ -0,0 +1,28 @@
+#ifndef _LINUX_AT24_H
+#define _LINUX_AT24_H
+
+#include <linux/types.h>
+
+/*
+ * As seen through Linux I2C, differences between the most common types of I2C
+ * memory include:
+ * - How much memory is available (usually specified in bit)?
+ * - What write page size does it support?
+ * - Special flags (16 bit addresses, read_only, world readable...)?
+ *
+ * If you set up a custom eeprom type, please double-check the parameters.
+ * Especially page_size needs extra care, as you risk data loss if your value
+ * is bigger than what the chip actually supports!
+ */
+
+struct at24_platform_data {
+        u32             byte_len;               /* size (sum of all addr) */
+        u16             page_size;              /* for writes */
+        u8              flags;
+#define AT24_FLAG_ADDR16        0x80    /* address pointer is 16 bit */
+#define AT24_FLAG_READONLY      0x40    /* sysfs-entry will be read-only */
+#define AT24_FLAG_IRUGO         0x20    /* sysfs-entry will be world-readable */
+#define AT24_FLAG_TAKE8ADDR     0x10    /* take always 8 addresses (24c00) */
+};
+
+#endif /* _LINUX_AT24_H */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index eddb6daadf4..ac4eeb2932e 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -364,7 +364,6 @@ typedef struct ide_drive_s {
         u8      wcache;         /* status of write cache */
         u8      acoustic;       /* acoustic management */
         u8      media;          /* disk, cdrom, tape, floppy, ... */
-        u8      ctl;            /* "normal" value for Control register */
         u8      ready_stat;     /* min status value for drive ready */
         u8      mult_count;     /* current multiple sector setting */
         u8      mult_req;       /* requested multiple sector setting */
@@ -493,7 +492,7 @@ typedef struct hwif_s {
         void (*ide_dma_clear_irq)(ide_drive_t *drive);
 
         void (*OUTB)(u8 addr, unsigned long port);
-        void (*OUTBSYNC)(ide_drive_t *drive, u8 addr, unsigned long port);
+        void (*OUTBSYNC)(struct hwif_s *hwif, u8 addr, unsigned long port);
 
         u8  (*INB)(unsigned long port);
 
@@ -532,7 +531,6 @@ typedef struct hwif_s {
         unsigned        serialized : 1; /* serialized all channel operation */
         unsigned        sharing_irq: 1; /* 1 = sharing irq with another hwif */
         unsigned        sg_mapped  : 1; /* sg_table and sg_nents are ready */
-        unsigned        mmio       : 1; /* host uses MMIO */
 
         struct device           gendev;
         struct device           *portdev;
@@ -604,12 +602,13 @@ enum {
         PC_FLAG_SUPPRESS_ERROR          = (1 << 1),
         PC_FLAG_WAIT_FOR_DSC            = (1 << 2),
         PC_FLAG_DMA_OK                  = (1 << 3),
-        PC_FLAG_DMA_RECOMMENDED         = (1 << 4),
-        PC_FLAG_DMA_IN_PROGRESS         = (1 << 5),
-        PC_FLAG_DMA_ERROR               = (1 << 6),
-        PC_FLAG_WRITING                 = (1 << 7),
+        PC_FLAG_DMA_IN_PROGRESS         = (1 << 4),
+        PC_FLAG_DMA_ERROR               = (1 << 5),
+        PC_FLAG_WRITING                 = (1 << 6),
         /* command timed out */
-        PC_FLAG_TIMEDOUT                = (1 << 8),
+        PC_FLAG_TIMEDOUT                = (1 << 7),
+        PC_FLAG_ZIP_DRIVE               = (1 << 8),
+        PC_FLAG_DRQ_INTERRUPT           = (1 << 9),
 };
 
 struct ide_atapi_pc {
@@ -642,8 +641,8 @@ struct ide_atapi_pc {
          * to change/removal later.
          */
         u8 pc_buf[256];
-        void (*idefloppy_callback) (ide_drive_t *);
-        ide_startstop_t (*idetape_callback) (ide_drive_t *);
+
+        void (*callback)(ide_drive_t *);
 
         /* idetape only */
         struct idetape_bh *bh;
@@ -813,10 +812,6 @@ int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsig
 #ifndef _IDE_C
 extern  ide_hwif_t      ide_hwifs[];            /* master data repository */
 #endif
-extern int ide_noacpi;
-extern int ide_acpigtf;
-extern int ide_acpionboot;
-extern int noautodma;
 
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
@@ -857,25 +852,12 @@ int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
 
 extern ide_startstop_t ide_do_reset (ide_drive_t *);
 
-extern void ide_init_drive_cmd (struct request *rq);
-
-/*
- * "action" parameter type for ide_do_drive_cmd() below.
- */
-typedef enum {
-        ide_wait,       /* insert rq at end of list, and wait for it */
-        ide_preempt,    /* insert rq in front of current request */
-        ide_head_wait,  /* insert rq in front of current request and wait for it */
-        ide_end         /* insert rq at end of list, but don't wait for it */
-} ide_action_t;
-
-extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t);
+extern void ide_do_drive_cmd(ide_drive_t *, struct request *);
 
 extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
 
 enum {
         IDE_TFLAG_LBA48                 = (1 << 0),
-        IDE_TFLAG_NO_SELECT_MASK        = (1 << 1),
         IDE_TFLAG_FLAGGED               = (1 << 2),
         IDE_TFLAG_OUT_DATA              = (1 << 3),
         IDE_TFLAG_OUT_HOB_FEATURE       = (1 << 4),
@@ -980,11 +962,23 @@ typedef struct ide_task_s {
 void ide_tf_dump(const char *, struct ide_taskfile *);
 
 extern void SELECT_DRIVE(ide_drive_t *);
+void SELECT_MASK(ide_drive_t *, int);
 
 extern int drive_is_ready(ide_drive_t *);
 
 void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
 
+ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc,
+        ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry,
+        void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
+        void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *),
+        void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned int,
+                           int));
+ide_startstop_t ide_transfer_pc(ide_drive_t *, struct ide_atapi_pc *,
+                                ide_handler_t *, unsigned int, ide_expiry_t *);
+ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_atapi_pc *,
+                             ide_handler_t *, unsigned int, ide_expiry_t *);
+
 ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *);
 
 void task_end_request(ide_drive_t *, struct request *, u8);
@@ -996,8 +990,6 @@ int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
 int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long);
 int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long);
 
-extern int system_bus_clock(void);
-
 extern int ide_driveid_update(ide_drive_t *);
 extern int ide_config_drive_speed(ide_drive_t *, u8);
 extern u8 eighty_ninty_three (ide_drive_t *);
@@ -1349,7 +1341,8 @@ static inline void ide_set_irq(ide_drive_t *drive, int on)
 {
         ide_hwif_t *hwif = drive->hwif;
 
-        hwif->OUTB(drive->ctl | (on ? 0 : 2), hwif->io_ports.ctl_addr);
+        hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | (on ? 0 : 2),
+                       hwif->io_ports.ctl_addr);
 }
 
 static inline u8 ide_read_status(ide_drive_t *drive)
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index a86186dd047..62aa4f895ab 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -104,8 +104,11 @@ extern void enable_irq(unsigned int irq);
 
 #if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
 
+extern cpumask_t irq_default_affinity;
+
 extern int irq_set_affinity(unsigned int irq, cpumask_t cpumask);
 extern int irq_can_set_affinity(unsigned int irq);
+extern int irq_select_affinity(unsigned int irq);
 
 #else /* CONFIG_SMP */
 
@@ -119,6 +122,8 @@ static inline int irq_can_set_affinity(unsigned int irq)
         return 0;
 }
 
+static inline int irq_select_affinity(unsigned int irq)  { return 0; }
+
 #endif /* CONFIG_SMP && CONFIG_GENERIC_HARDIRQS */
 
 #ifdef CONFIG_GENERIC_HARDIRQS
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 552e0ec269c..8ccb462ea42 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -244,15 +244,6 @@ static inline void set_balance_irq_affinity(unsigned int irq, cpumask_t mask)
 }
 #endif
 
-#ifdef CONFIG_AUTO_IRQ_AFFINITY
-extern int select_smp_affinity(unsigned int irq);
-#else
-static inline int select_smp_affinity(unsigned int irq)
-{
-        return 1;
-}
-#endif
-
 extern int no_irq_affinity;
 
 static inline int irq_balancing_disabled(unsigned int irq)
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index d147f0f9036..3dd20900709 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -168,6 +168,8 @@ struct commit_header {
         unsigned char   h_chksum_size;
         unsigned char   h_padding[2];
         __be32          h_chksum[JBD2_CHECKSUM_BYTES];
+        __be64          h_commit_sec;
+        __be32          h_commit_nsec;
 };
 
 /*
@@ -379,6 +381,38 @@ static inline void jbd_unlock_bh_journal_head(struct buffer_head *bh)
         bit_spin_unlock(BH_JournalHead, &bh->b_state);
 }
 
+/* Flags in jbd_inode->i_flags */
+#define __JI_COMMIT_RUNNING 0
+/* Commit of the inode data in progress. We use this flag to protect us from
+ * concurrent deletion of inode. We cannot use reference to inode for this
+ * since we cannot afford doing last iput() on behalf of kjournald
+ */
+#define JI_COMMIT_RUNNING (1 << __JI_COMMIT_RUNNING)
+
+/**
+ * struct jbd_inode is the structure linking inodes in ordered mode
+ *   present in a transaction so that we can sync them during commit.
+ */
+struct jbd2_inode {
+        /* Which transaction does this inode belong to? Either the running
+         * transaction or the committing one. [j_list_lock] */
+        transaction_t *i_transaction;
+
+        /* Pointer to the running transaction modifying inode's data in case
+         * there is already a committing transaction touching it. [j_list_lock] */
+        transaction_t *i_next_transaction;
+
+        /* List of inodes in the i_transaction [j_list_lock] */
+        struct list_head i_list;
+
+        /* VFS inode this inode belongs to [constant during the lifetime
+         * of the structure] */
+        struct inode *i_vfs_inode;
+
+        /* Flags of inode [j_list_lock] */
+        unsigned int i_flags;
+};
+
 struct jbd2_revoke_table_s;
 
 /**
@@ -509,24 +543,12 @@ struct transaction_s
         struct journal_head     *t_reserved_list;
 
         /*
-         * Doubly-linked circular list of all buffers under writeout during
-         * commit [j_list_lock]
-         */
-        struct journal_head     *t_locked_list;
-
-        /*
          * Doubly-linked circular list of all metadata buffers owned by this
          * transaction [j_list_lock]
          */
         struct journal_head     *t_buffers;
 
         /*
-         * Doubly-linked circular list of all data buffers still to be
-         * flushed before this transaction can be committed [j_list_lock]
-         */
-        struct journal_head     *t_sync_datalist;
-
-        /*
          * Doubly-linked circular list of all forget buffers (superseded
          * buffers which we can un-checkpoint once this transaction commits)
          * [j_list_lock]
@@ -565,6 +587,12 @@ struct transaction_s
         struct journal_head     *t_log_list;
 
         /*
+         * List of inodes whose data we've modified in data=ordered mode.
+         * [j_list_lock]
+         */
+        struct list_head        t_inode_list;
+
+        /*
          * Protects info related to handles
          */
         spinlock_t              t_handle_lock;
@@ -1004,7 +1032,6 @@ extern int	 jbd2_journal_extend (handle_t *, int nblocks);
 extern int       jbd2_journal_get_write_access(handle_t *, struct buffer_head *);
 extern int       jbd2_journal_get_create_access (handle_t *, struct buffer_head *);
 extern int       jbd2_journal_get_undo_access(handle_t *, struct buffer_head *);
-extern int       jbd2_journal_dirty_data (handle_t *, struct buffer_head *);
 extern int       jbd2_journal_dirty_metadata (handle_t *, struct buffer_head *);
 extern void      jbd2_journal_release_buffer (handle_t *, struct buffer_head *);
 extern int       jbd2_journal_forget (handle_t *, struct buffer_head *);
@@ -1044,6 +1071,10 @@ extern void	   jbd2_journal_ack_err    (journal_t *);
 extern int         jbd2_journal_clear_err  (journal_t *);
 extern int         jbd2_journal_bmap(journal_t *, unsigned long, unsigned long long *);
 extern int         jbd2_journal_force_commit(journal_t *);
+extern int         jbd2_journal_file_inode(handle_t *handle, struct jbd2_inode *inode);
+extern int         jbd2_journal_begin_ordered_truncate(struct jbd2_inode *inode, loff_t new_size);
+extern void        jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode);
+extern void        jbd2_journal_release_jbd_inode(journal_t *journal, struct jbd2_inode *jinode);
 
 /*
  * journal_head management
@@ -1179,15 +1210,13 @@ static inline int jbd_space_needed(journal_t *journal)
 
 /* journaling buffer types */
 #define BJ_None         0       /* Not journaled */
-#define BJ_SyncData     1       /* Normal data: flush before commit */
-#define BJ_Metadata     2       /* Normal journaled metadata */
-#define BJ_Forget       3       /* Buffer superseded by this transaction */
-#define BJ_IO           4       /* Buffer is for temporary IO use */
-#define BJ_Shadow       5       /* Buffer contents being shadowed to the log */
-#define BJ_LogCtl       6       /* Buffer contains log descriptors */
-#define BJ_Reserved     7       /* Buffer is reserved for access by journal */
-#define BJ_Locked       8       /* Locked for I/O during commit */
-#define BJ_Types        9
+#define BJ_Metadata     1       /* Normal journaled metadata */
+#define BJ_Forget       2       /* Buffer superseded by this transaction */
+#define BJ_IO           3       /* Buffer is for temporary IO use */
+#define BJ_Shadow       4       /* Buffer contents being shadowed to the log */
+#define BJ_LogCtl       5       /* Buffer contains log descriptors */
+#define BJ_Reserved     6       /* Buffer is reserved for access by journal */
+#define BJ_Types        7
 
 extern int jbd_blocks_per_page(struct inode *inode);
 
diff --git a/include/linux/libata.h b/include/linux/libata.h
index e57e5d08312..5b247b8a6b3 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -27,6 +27,7 @@
 #define __LINUX_LIBATA_H__
 
 #include <linux/delay.h>
+#include <linux/jiffies.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
 #include <linux/scatterlist.h>
@@ -115,7 +116,7 @@ enum {
         /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */
         ATA_MAX_QUEUE           = 32,
         ATA_TAG_INTERNAL        = ATA_MAX_QUEUE - 1,
-        ATA_SHORT_PAUSE         = (HZ >> 6) + 1,
+        ATA_SHORT_PAUSE         = 16,
 
         ATAPI_MAX_DRAIN         = 16 << 10,
 
@@ -168,6 +169,7 @@ enum {
         ATA_LFLAG_ASSUME_CLASS  = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB,
         ATA_LFLAG_NO_RETRY      = (1 << 5), /* don't retry this link */
         ATA_LFLAG_DISABLED      = (1 << 6), /* link is disabled */
+        ATA_LFLAG_SW_ACTIVITY   = (1 << 7), /* keep activity stats */
 
         /* struct ata_port flags */
         ATA_FLAG_SLAVE_POSS     = (1 << 0), /* host supports slave dev */
@@ -190,6 +192,10 @@ enum {
         ATA_FLAG_AN             = (1 << 18), /* controller supports AN */
         ATA_FLAG_PMP            = (1 << 19), /* controller supports PMP */
         ATA_FLAG_IPM            = (1 << 20), /* driver can handle IPM */
+        ATA_FLAG_EM             = (1 << 21), /* driver supports enclosure
+                                              * management */
+        ATA_FLAG_SW_ACTIVITY    = (1 << 22), /* driver supports sw activity
+                                              * led */
 
         /* The following flag belongs to ap->pflags but is kept in
          * ap->flags because it's referenced in many LLDs and will be
@@ -234,17 +240,16 @@ enum {
         /* bits 24:31 of host->flags are reserved for LLD specific flags */
 
         /* various lengths of time */
-        ATA_TMOUT_BOOT          = 30 * HZ,      /* heuristic */
-        ATA_TMOUT_BOOT_QUICK    = 7 * HZ,       /* heuristic */
-        ATA_TMOUT_INTERNAL      = 30 * HZ,
-        ATA_TMOUT_INTERNAL_QUICK = 5 * HZ,
+        ATA_TMOUT_BOOT          = 30000,        /* heuristic */
+        ATA_TMOUT_BOOT_QUICK    =  7000,        /* heuristic */
+        ATA_TMOUT_INTERNAL_QUICK = 5000,
 
         /* FIXME: GoVault needs 2s but we can't afford that without
          * parallel probing.  800ms is enough for iVDR disk
          * HHD424020F7SV00.  Increase to 2secs when parallel probing
          * is in place.
          */
-        ATA_TMOUT_FF_WAIT       = 4 * HZ / 5,
+        ATA_TMOUT_FF_WAIT       =  800,
 
         /* Spec mandates to wait for ">= 2ms" before checking status
          * after reset.  We wait 150ms, because that was the magic
@@ -256,14 +261,14 @@ enum {
          *
          * Old drivers/ide uses the 2mS rule and then waits for ready.
          */
-        ATA_WAIT_AFTER_RESET_MSECS = 150,
+        ATA_WAIT_AFTER_RESET    =  150,
 
         /* If PMP is supported, we have to do follow-up SRST.  As some
          * PMPs don't send D2H Reg FIS after hardreset, LLDs are
          * advised to wait only for the following duration before
          * doing SRST.
          */
-        ATA_TMOUT_PMP_SRST_WAIT = 1 * HZ,
+        ATA_TMOUT_PMP_SRST_WAIT = 1000,
 
         /* ATA bus states */
         BUS_UNKNOWN             = 0,
@@ -340,6 +345,11 @@ enum {
 
         SATA_PMP_RW_TIMEOUT     = 3000,         /* PMP read/write timeout */
 
+        /* This should match the actual table size of
+         * ata_eh_cmd_timeout_table in libata-eh.c.
+         */
+        ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 5,
+
         /* Horkage types. May be set by libata or controller on drives
            (some horkage may be drive/controller pair dependant */
 
@@ -441,6 +451,15 @@ enum link_pm {
         MEDIUM_POWER,
 };
 extern struct device_attribute dev_attr_link_power_management_policy;
+extern struct device_attribute dev_attr_em_message_type;
+extern struct device_attribute dev_attr_em_message;
+extern struct device_attribute dev_attr_sw_activity;
+
+enum sw_activity {
+        OFF,
+        BLINK_ON,
+        BLINK_OFF,
+};
 
 #ifdef CONFIG_ATA_SFF
 struct ata_ioports {
@@ -597,10 +616,14 @@ struct ata_eh_info {
 struct ata_eh_context {
         struct ata_eh_info      i;
         int                     tries[ATA_MAX_DEVICES];
+        int                     cmd_timeout_idx[ATA_MAX_DEVICES]
+                                               [ATA_EH_CMD_TIMEOUT_TABLE_SIZE];
         unsigned int            classes[ATA_MAX_DEVICES];
         unsigned int            did_probe_mask;
         unsigned int            saved_ncq_enabled;
         u8                      saved_xfer_mode[ATA_MAX_DEVICES];
+        /* timestamp for the last reset attempt or success */
+        unsigned long           last_reset;
 };
 
 struct ata_acpi_drive
@@ -692,6 +715,7 @@ struct ata_port {
         struct timer_list       fastdrain_timer;
         unsigned long           fastdrain_cnt;
 
+        int                     em_message_type;
         void                    *private_data;
 
 #ifdef CONFIG_ATA_ACPI
@@ -783,6 +807,12 @@ struct ata_port_operations {
         u8   (*bmdma_status)(struct ata_port *ap);
 #endif /* CONFIG_ATA_SFF */
 
+        ssize_t (*em_show)(struct ata_port *ap, char *buf);
+        ssize_t (*em_store)(struct ata_port *ap, const char *message,
+                            size_t size);
+        ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf);
+        ssize_t (*sw_activity_store)(struct ata_device *dev,
+                                     enum sw_activity val);
         /*
          * Obsolete
          */
@@ -895,8 +925,7 @@ extern void ata_host_resume(struct ata_host *host);
 #endif
 extern int ata_ratelimit(void);
 extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
-                             unsigned long interval_msec,
-                             unsigned long timeout_msec);
+                             unsigned long interval, unsigned long timeout);
 extern int atapi_cmd_type(u8 opcode);
 extern void ata_tf_to_fis(const struct ata_taskfile *tf,
                           u8 pmp, int is_cmd, u8 *fis);
@@ -1389,6 +1418,12 @@ static inline int ata_check_ready(u8 status)
         return 0;
 }
 
+static inline unsigned long ata_deadline(unsigned long from_jiffies,
+                                         unsigned long timeout_msecs)
+{
+        return from_jiffies + msecs_to_jiffies(timeout_msecs);
+}
+
 
 /**************************************************************************
  * PMP - drivers/ata/libata-pmp.c
diff --git a/include/linux/list.h b/include/linux/list.h
index 08cf4f65188..139ec41d9c2 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -85,65 +85,6 @@ static inline void list_add_tail(struct list_head *new, struct list_head *head)
 }
 
 /*
- * Insert a new entry between two known consecutive entries.
- *
- * This is only for internal list manipulation where we know
- * the prev/next entries already!
- */
-static inline void __list_add_rcu(struct list_head * new,
-                struct list_head * prev, struct list_head * next)
-{
-        new->next = next;
-        new->prev = prev;
-        smp_wmb();
-        next->prev = new;
-        prev->next = new;
-}
-
-/**
- * list_add_rcu - add a new entry to rcu-protected list
- * @new: new entry to be added
- * @head: list head to add it after
- *
- * Insert a new entry after the specified head.
- * This is good for implementing stacks.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as list_add_rcu()
- * or list_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * list_for_each_entry_rcu().
- */
-static inline void list_add_rcu(struct list_head *new, struct list_head *head)
-{
-        __list_add_rcu(new, head, head->next);
-}
-
-/**
- * list_add_tail_rcu - add a new entry to rcu-protected list
- * @new: new entry to be added
- * @head: list head to add it before
- *
- * Insert a new entry before the specified head.
- * This is useful for implementing queues.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as list_add_tail_rcu()
- * or list_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * list_for_each_entry_rcu().
- */
-static inline void list_add_tail_rcu(struct list_head *new,
-                                        struct list_head *head)
-{
-        __list_add_rcu(new, head->prev, head);
-}
-
-/*
  * Delete a list entry by making the prev/next entries
  * point to each other.
  *
@@ -174,36 +115,6 @@ extern void list_del(struct list_head *entry);
 #endif
 
 /**
- * list_del_rcu - deletes entry from list without re-initialization
- * @entry: the element to delete from the list.
- *
- * Note: list_empty() on entry does not return true after this,
- * the entry is in an undefined state. It is useful for RCU based
- * lockfree traversal.
- *
- * In particular, it means that we can not poison the forward
- * pointers that may still be used for walking the list.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as list_del_rcu()
- * or list_add_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * list_for_each_entry_rcu().
- *
- * Note that the caller is not permitted to immediately free
- * the newly deleted entry.  Instead, either synchronize_rcu()
- * or call_rcu() must be used to defer freeing until an RCU
- * grace period has elapsed.
- */
-static inline void list_del_rcu(struct list_head *entry)
-{
-        __list_del(entry->prev, entry->next);
-        entry->prev = LIST_POISON2;
-}
-
-/**
  * list_replace - replace old entry by new one
  * @old : the element to be replaced
  * @new : the new element to insert
@@ -227,25 +138,6 @@ static inline void list_replace_init(struct list_head *old,
 }
 
 /**
- * list_replace_rcu - replace old entry by new one
- * @old : the element to be replaced
- * @new : the new element to insert
- *
- * The @old entry will be replaced with the @new entry atomically.
- * Note: @old should not be empty.
- */
-static inline void list_replace_rcu(struct list_head *old,
-                                struct list_head *new)
-{
-        new->next = old->next;
-        new->prev = old->prev;
-        smp_wmb();
-        new->next->prev = new;
-        new->prev->next = new;
-        old->prev = LIST_POISON2;
-}
-
-/**
  * list_del_init - deletes entry from list and reinitialize it.
  * @entry: the element to delete from the list.
  */
@@ -369,62 +261,6 @@ static inline void list_splice_init(struct list_head *list,
 }
 
 /**
- * list_splice_init_rcu - splice an RCU-protected list into an existing list.
- * @list:       the RCU-protected list to splice
- * @head:       the place in the list to splice the first list into
- * @sync:       function to sync: synchronize_rcu(), synchronize_sched(), ...
- *
- * @head can be RCU-read traversed concurrently with this function.
- *
- * Note that this function blocks.
- *
- * Important note: the caller must take whatever action is necessary to
- *      prevent any other updates to @head.  In principle, it is possible
- *      to modify the list as soon as sync() begins execution.
- *      If this sort of thing becomes necessary, an alternative version
- *      based on call_rcu() could be created.  But only if -really-
- *      needed -- there is no shortage of RCU API members.
- */
-static inline void list_splice_init_rcu(struct list_head *list,
-                                        struct list_head *head,
-                                        void (*sync)(void))
-{
-        struct list_head *first = list->next;
-        struct list_head *last = list->prev;
-        struct list_head *at = head->next;
-
-        if (list_empty(head))
-                return;
-
-        /* "first" and "last" tracking list, so initialize it. */
-
-        INIT_LIST_HEAD(list);
-
-        /*
-         * At this point, the list body still points to the source list.
-         * Wait for any readers to finish using the list before splicing
-         * the list body into the new list.  Any new readers will see
-         * an empty list.
-         */
-
-        sync();
-
-        /*
-         * Readers are finished with the source list, so perform splice.
-         * The order is important if the new list is global and accessible
-         * to concurrent RCU readers.  Note that RCU readers are not
-         * permitted to traverse the prev pointers without excluding
-         * this function.
-         */
-
-        last->next = at;
-        smp_wmb();
-        head->next = first;
-        first->prev = head;
-        at->prev = last;
-}
-
-/**
  * list_entry - get the struct for this entry
  * @ptr:        the &struct list_head pointer.
  * @type:       the type of the struct this is embedded in.
@@ -629,57 +465,6 @@ static inline void list_splice_init_rcu(struct list_head *list,
              &pos->member != (head);                                    \
              pos = n, n = list_entry(n->member.prev, typeof(*n), member))
 
-/**
- * list_for_each_rcu    -       iterate over an rcu-protected list
- * @pos:        the &struct list_head to use as a loop cursor.
- * @head:       the head for your list.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as list_add_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define list_for_each_rcu(pos, head) \
-        for (pos = rcu_dereference((head)->next); \
-                prefetch(pos->next), pos != (head); \
-                pos = rcu_dereference(pos->next))
-
-#define __list_for_each_rcu(pos, head) \
-        for (pos = rcu_dereference((head)->next); \
-                pos != (head); \
-                pos = rcu_dereference(pos->next))
-
-/**
- * list_for_each_entry_rcu      -       iterate over rcu list of given type
- * @pos:        the type * to use as a loop cursor.
- * @head:       the head for your list.
- * @member:     the name of the list_struct within the struct.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as list_add_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define list_for_each_entry_rcu(pos, head, member) \
-        for (pos = list_entry(rcu_dereference((head)->next), typeof(*pos), member); \
-                prefetch(pos->member.next), &pos->member != (head); \
-                pos = list_entry(rcu_dereference(pos->member.next), typeof(*pos), member))
-
-
-/**
- * list_for_each_continue_rcu
- * @pos:        the &struct list_head to use as a loop cursor.
- * @head:       the head for your list.
- *
- * Iterate over an rcu-protected list, continuing after current point.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as list_add_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define list_for_each_continue_rcu(pos, head) \
-        for ((pos) = rcu_dereference((pos)->next); \
-                prefetch((pos)->next), (pos) != (head); \
-                (pos) = rcu_dereference((pos)->next))
-
 /*
  * Double linked lists with a single pointer list head.
  * Mostly useful for hash tables where the two pointer list head is
@@ -730,31 +515,6 @@ static inline void hlist_del(struct hlist_node *n)
         n->pprev = LIST_POISON2;
 }
 
-/**
- * hlist_del_rcu - deletes entry from hash list without re-initialization
- * @n: the element to delete from the hash list.
- *
- * Note: list_unhashed() on entry does not return true after this,
- * the entry is in an undefined state. It is useful for RCU based
- * lockfree traversal.
- *
- * In particular, it means that we can not poison the forward
- * pointers that may still be used for walking the hash list.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as hlist_add_head_rcu()
- * or hlist_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * hlist_for_each_entry().
- */
-static inline void hlist_del_rcu(struct hlist_node *n)
-{
-        __hlist_del(n);
-        n->pprev = LIST_POISON2;
-}
-
 static inline void hlist_del_init(struct hlist_node *n)
 {
         if (!hlist_unhashed(n)) {
@@ -763,27 +523,6 @@ static inline void hlist_del_init(struct hlist_node *n)
         }
 }
 
-/**
- * hlist_replace_rcu - replace old entry by new one
- * @old : the element to be replaced
- * @new : the new element to insert
- *
- * The @old entry will be replaced with the @new entry atomically.
- */
-static inline void hlist_replace_rcu(struct hlist_node *old,
-                                        struct hlist_node *new)
-{
-        struct hlist_node *next = old->next;
-
-        new->next = next;
-        new->pprev = old->pprev;
-        smp_wmb();
-        if (next)
-                new->next->pprev = &new->next;
-        *new->pprev = new;
-        old->pprev = LIST_POISON2;
-}
-
 static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
 {
         struct hlist_node *first = h->first;
@@ -794,38 +533,6 @@ static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
         n->pprev = &h->first;
 }
 
-
-/**
- * hlist_add_head_rcu
- * @n: the element to add to the hash list.
- * @h: the list to add to.
- *
- * Description:
- * Adds the specified element to the specified hlist,
- * while permitting racing traversals.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as hlist_add_head_rcu()
- * or hlist_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * hlist_for_each_entry_rcu(), used to prevent memory-consistency
- * problems on Alpha CPUs.  Regardless of the type of CPU, the
- * list-traversal primitive must be guarded by rcu_read_lock().
- */
-static inline void hlist_add_head_rcu(struct hlist_node *n,
-                                        struct hlist_head *h)
-{
-        struct hlist_node *first = h->first;
-        n->next = first;
-        n->pprev = &h->first;
-        smp_wmb();
-        if (first)
-                first->pprev = &n->next;
-        h->first = n;
-}
-
 /* next must be != NULL */
 static inline void hlist_add_before(struct hlist_node *n,
                                         struct hlist_node *next)
@@ -847,63 +554,6 @@ static inline void hlist_add_after(struct hlist_node *n,
                 next->next->pprev  = &next->next;
 }
 
-/**
- * hlist_add_before_rcu
- * @n: the new element to add to the hash list.
- * @next: the existing element to add the new element before.
- *
- * Description:
- * Adds the specified element to the specified hlist
- * before the specified node while permitting racing traversals.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as hlist_add_head_rcu()
- * or hlist_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * hlist_for_each_entry_rcu(), used to prevent memory-consistency
- * problems on Alpha CPUs.
- */
-static inline void hlist_add_before_rcu(struct hlist_node *n,
-                                        struct hlist_node *next)
-{
-        n->pprev = next->pprev;
-        n->next = next;
-        smp_wmb();
-        next->pprev = &n->next;
-        *(n->pprev) = n;
-}
-
-/**
- * hlist_add_after_rcu
- * @prev: the existing element to add the new element after.
- * @n: the new element to add to the hash list.
- *
- * Description:
- * Adds the specified element to the specified hlist
- * after the specified node while permitting racing traversals.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as hlist_add_head_rcu()
- * or hlist_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * hlist_for_each_entry_rcu(), used to prevent memory-consistency
- * problems on Alpha CPUs.
- */
-static inline void hlist_add_after_rcu(struct hlist_node *prev,
-                                       struct hlist_node *n)
-{
-        n->next = prev->next;
-        n->pprev = &prev->next;
-        smp_wmb();
-        prev->next = n;
-        if (n->next)
-                n->next->pprev = &n->next;
-}
-
 #define hlist_entry(ptr, type, member) container_of(ptr,type,member)
 
 #define hlist_for_each(pos, head) \
@@ -964,21 +614,4 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
                 ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
              pos = n)
 
-/**
- * hlist_for_each_entry_rcu - iterate over rcu list of given type
- * @tpos:       the type * to use as a loop cursor.
- * @pos:        the &struct hlist_node to use as a loop cursor.
- * @head:       the head for your list.
- * @member:     the name of the hlist_node within the struct.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as hlist_add_head_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define hlist_for_each_entry_rcu(tpos, pos, head, member)                \
-        for (pos = rcu_dereference((head)->first);                       \
-                pos && ({ prefetch(pos->next); 1;}) &&                   \
-                ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
-             pos = rcu_dereference(pos->next))
-
 #endif
diff --git a/include/linux/lm_interface.h b/include/linux/lm_interface.h
index f274997bc28..2ed8fa1b762 100644
--- a/include/linux/lm_interface.h
+++ b/include/linux/lm_interface.h
@@ -122,11 +122,9 @@ typedef void (*lm_callback_t) (void *ptr, unsigned int type, void *data);
  */
 
 #define LM_OUT_ST_MASK          0x00000003
-#define LM_OUT_CACHEABLE        0x00000004
 #define LM_OUT_CANCELED         0x00000008
 #define LM_OUT_ASYNC            0x00000080
 #define LM_OUT_ERROR            0x00000100
-#define LM_OUT_CONV_DEADLK      0x00000200
 
 /*
  * lm_callback_t types
@@ -138,9 +136,6 @@ typedef void (*lm_callback_t) (void *ptr, unsigned int type, void *data);
  * LM_CB_NEED_RECOVERY
  * The given journal needs to be recovered.
  *
- * LM_CB_DROPLOCKS
- * Reduce the number of cached locks.
- *
  * LM_CB_ASYNC
  * The given lock has been granted.
  */
@@ -149,7 +144,6 @@ typedef void (*lm_callback_t) (void *ptr, unsigned int type, void *data);
 #define LM_CB_NEED_D            258
 #define LM_CB_NEED_S            259
 #define LM_CB_NEED_RECOVERY     260
-#define LM_CB_DROPLOCKS         261
 #define LM_CB_ASYNC             262
 
 /*
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index a744383d16e..81b3dd5206e 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -398,7 +398,8 @@ int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_waterm
 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
 
-int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
+int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+                          int block_mcast_loopback);
 int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
 
 int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
diff --git a/include/linux/mpage.h b/include/linux/mpage.h
index 068a0c9946a..5c42821da2d 100644
--- a/include/linux/mpage.h
+++ b/include/linux/mpage.h
@@ -11,11 +11,21 @@
  */
 #ifdef CONFIG_BLOCK
 
+struct mpage_data {
+        struct bio *bio;
+        sector_t last_block_in_bio;
+        get_block_t *get_block;
+        unsigned use_writepage;
+};
+
 struct writeback_control;
 
+struct bio *mpage_bio_submit(int rw, struct bio *bio);
 int mpage_readpages(struct address_space *mapping, struct list_head *pages,
                                 unsigned nr_pages, get_block_t get_block);
 int mpage_readpage(struct page *page, get_block_t get_block);
+int __mpage_writepage(struct page *page, struct writeback_control *wbc,
+                      void *data);
 int mpage_writepages(struct address_space *mapping,
                 struct writeback_control *wbc, get_block_t get_block);
 int mpage_writepage(struct page *page, get_block_t *get_block,
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index 9007ccdfc11..20838883535 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -35,7 +35,7 @@ int percpu_counter_init_irq(struct percpu_counter *fbc, s64 amount);
 void percpu_counter_destroy(struct percpu_counter *fbc);
 void percpu_counter_set(struct percpu_counter *fbc, s64 amount);
 void __percpu_counter_add(struct percpu_counter *fbc, s64 amount, s32 batch);
-s64 __percpu_counter_sum(struct percpu_counter *fbc);
+s64 __percpu_counter_sum(struct percpu_counter *fbc, int set);
 
 static inline void percpu_counter_add(struct percpu_counter *fbc, s64 amount)
 {
@@ -44,13 +44,19 @@ static inline void percpu_counter_add(struct percpu_counter *fbc, s64 amount)
 
 static inline s64 percpu_counter_sum_positive(struct percpu_counter *fbc)
 {
-        s64 ret = __percpu_counter_sum(fbc);
+        s64 ret = __percpu_counter_sum(fbc, 0);
         return ret < 0 ? 0 : ret;
 }
 
+static inline s64 percpu_counter_sum_and_set(struct percpu_counter *fbc)
+{
+        return __percpu_counter_sum(fbc, 1);
+}
+
+
 static inline s64 percpu_counter_sum(struct percpu_counter *fbc)
 {
-        return __percpu_counter_sum(fbc);
+        return __percpu_counter_sum(fbc, 0);
 }
 
 static inline s64 percpu_counter_read(struct percpu_counter *fbc)
diff --git a/include/linux/rcuclassic.h b/include/linux/rcuclassic.h
index b3aa05baab8..8c774905dcf 100644
--- a/include/linux/rcuclassic.h
+++ b/include/linux/rcuclassic.h
@@ -151,7 +151,10 @@ extern struct lockdep_map rcu_lock_map;
 
 #define __synchronize_sched() synchronize_rcu()
 
+#define call_rcu_sched(head, func) call_rcu(head, func)
+
 extern void __rcu_init(void);
+#define rcu_init_sched()        do { } while (0)
 extern void rcu_check_callbacks(int cpu, int user);
 extern void rcu_restart_cpu(int cpu);
 
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index bde4586f438..b0f39be08b6 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -1,6 +1,373 @@
 #ifndef _LINUX_RCULIST_H
 #define _LINUX_RCULIST_H
 
+#ifdef __KERNEL__
+
+/*
+ * RCU-protected list version
+ */
 #include <linux/list.h>
+#include <linux/rcupdate.h>
+
+/*
+ * Insert a new entry between two known consecutive entries.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_add_rcu(struct list_head *new,
+                struct list_head *prev, struct list_head *next)
+{
+        new->next = next;
+        new->prev = prev;
+        rcu_assign_pointer(prev->next, new);
+        next->prev = new;
+}
+
+/**
+ * list_add_rcu - add a new entry to rcu-protected list
+ * @new: new entry to be added
+ * @head: list head to add it after
+ *
+ * Insert a new entry after the specified head.
+ * This is good for implementing stacks.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as list_add_rcu()
+ * or list_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * list_for_each_entry_rcu().
+ */
+static inline void list_add_rcu(struct list_head *new, struct list_head *head)
+{
+        __list_add_rcu(new, head, head->next);
+}
+
+/**
+ * list_add_tail_rcu - add a new entry to rcu-protected list
+ * @new: new entry to be added
+ * @head: list head to add it before
+ *
+ * Insert a new entry before the specified head.
+ * This is useful for implementing queues.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as list_add_tail_rcu()
+ * or list_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * list_for_each_entry_rcu().
+ */
+static inline void list_add_tail_rcu(struct list_head *new,
+                                        struct list_head *head)
+{
+        __list_add_rcu(new, head->prev, head);
+}
+
+/**
+ * list_del_rcu - deletes entry from list without re-initialization
+ * @entry: the element to delete from the list.
+ *
+ * Note: list_empty() on entry does not return true after this,
+ * the entry is in an undefined state. It is useful for RCU based
+ * lockfree traversal.
+ *
+ * In particular, it means that we can not poison the forward
+ * pointers that may still be used for walking the list.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as list_del_rcu()
+ * or list_add_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * list_for_each_entry_rcu().
+ *
+ * Note that the caller is not permitted to immediately free
+ * the newly deleted entry.  Instead, either synchronize_rcu()
+ * or call_rcu() must be used to defer freeing until an RCU
+ * grace period has elapsed.
+ */
+static inline void list_del_rcu(struct list_head *entry)
+{
+        __list_del(entry->prev, entry->next);
+        entry->prev = LIST_POISON2;
+}
+
+/**
+ * list_replace_rcu - replace old entry by new one
+ * @old : the element to be replaced
+ * @new : the new element to insert
+ *
+ * The @old entry will be replaced with the @new entry atomically.
+ * Note: @old should not be empty.
+ */
+static inline void list_replace_rcu(struct list_head *old,
+                                struct list_head *new)
+{
+        new->next = old->next;
+        new->prev = old->prev;
+        rcu_assign_pointer(new->prev->next, new);
+        new->next->prev = new;
+        old->prev = LIST_POISON2;
+}
+
+/**
+ * list_splice_init_rcu - splice an RCU-protected list into an existing list.
+ * @list:       the RCU-protected list to splice
+ * @head:       the place in the list to splice the first list into
+ * @sync:       function to sync: synchronize_rcu(), synchronize_sched(), ...
+ *
+ * @head can be RCU-read traversed concurrently with this function.
+ *
+ * Note that this function blocks.
+ *
+ * Important note: the caller must take whatever action is necessary to
+ *      prevent any other updates to @head.  In principle, it is possible
+ *      to modify the list as soon as sync() begins execution.
+ *      If this sort of thing becomes necessary, an alternative version
+ *      based on call_rcu() could be created.  But only if -really-
+ *      needed -- there is no shortage of RCU API members.
+ */
+static inline void list_splice_init_rcu(struct list_head *list,
+                                        struct list_head *head,
+                                        void (*sync)(void))
+{
+        struct list_head *first = list->next;
+        struct list_head *last = list->prev;
+        struct list_head *at = head->next;
+
+        if (list_empty(head))
+                return;
+
+        /* "first" and "last" tracking list, so initialize it. */
+
+        INIT_LIST_HEAD(list);
+
+        /*
+         * At this point, the list body still points to the source list.
+         * Wait for any readers to finish using the list before splicing
+         * the list body into the new list.  Any new readers will see
+         * an empty list.
+         */
+
+        sync();
+
+        /*
+         * Readers are finished with the source list, so perform splice.
+         * The order is important if the new list is global and accessible
+         * to concurrent RCU readers.  Note that RCU readers are not
+         * permitted to traverse the prev pointers without excluding
+         * this function.
+         */
+
+        last->next = at;
+        rcu_assign_pointer(head->next, first);
+        first->prev = head;
+        at->prev = last;
+}
+
+/**
+ * list_for_each_rcu    -       iterate over an rcu-protected list
+ * @pos:        the &struct list_head to use as a loop cursor.
+ * @head:       the head for your list.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as list_add_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+#define list_for_each_rcu(pos, head) \
+        for (pos = rcu_dereference((head)->next); \
+                prefetch(pos->next), pos != (head); \
+                pos = rcu_dereference(pos->next))
+
+#define __list_for_each_rcu(pos, head) \
+        for (pos = rcu_dereference((head)->next); \
+                pos != (head); \
+                pos = rcu_dereference(pos->next))
+
+/**
+ * list_for_each_entry_rcu      -       iterate over rcu list of given type
+ * @pos:        the type * to use as a loop cursor.
+ * @head:       the head for your list.
+ * @member:     the name of the list_struct within the struct.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as list_add_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+#define list_for_each_entry_rcu(pos, head, member) \
+        for (pos = list_entry(rcu_dereference((head)->next), typeof(*pos), member); \
+                prefetch(pos->member.next), &pos->member != (head); \
+                pos = list_entry(rcu_dereference(pos->member.next), typeof(*pos), member))
+
+
+/**
+ * list_for_each_continue_rcu
+ * @pos:        the &struct list_head to use as a loop cursor.
+ * @head:       the head for your list.
+ *
+ * Iterate over an rcu-protected list, continuing after current point.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as list_add_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+#define list_for_each_continue_rcu(pos, head) \
+        for ((pos) = rcu_dereference((pos)->next); \
+                prefetch((pos)->next), (pos) != (head); \
+                (pos) = rcu_dereference((pos)->next))
+
+/**
+ * hlist_del_rcu - deletes entry from hash list without re-initialization
+ * @n: the element to delete from the hash list.
+ *
+ * Note: list_unhashed() on entry does not return true after this,
+ * the entry is in an undefined state. It is useful for RCU based
+ * lockfree traversal.
+ *
+ * In particular, it means that we can not poison the forward
+ * pointers that may still be used for walking the hash list.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as hlist_add_head_rcu()
+ * or hlist_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * hlist_for_each_entry().
+ */
+static inline void hlist_del_rcu(struct hlist_node *n)
+{
+        __hlist_del(n);
+        n->pprev = LIST_POISON2;
+}
+
+/**
+ * hlist_replace_rcu - replace old entry by new one
+ * @old : the element to be replaced
+ * @new : the new element to insert
+ *
+ * The @old entry will be replaced with the @new entry atomically.
+ */
+static inline void hlist_replace_rcu(struct hlist_node *old,
+                                        struct hlist_node *new)
+{
+        struct hlist_node *next = old->next;
+
+        new->next = next;
+        new->pprev = old->pprev;
+        rcu_assign_pointer(*new->pprev, new);
+        if (next)
+                new->next->pprev = &new->next;
+        old->pprev = LIST_POISON2;
+}
+
+/**
+ * hlist_add_head_rcu
+ * @n: the element to add to the hash list.
+ * @h: the list to add to.
+ *
+ * Description:
+ * Adds the specified element to the specified hlist,
+ * while permitting racing traversals.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as hlist_add_head_rcu()
+ * or hlist_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * hlist_for_each_entry_rcu(), used to prevent memory-consistency
+ * problems on Alpha CPUs.  Regardless of the type of CPU, the
+ * list-traversal primitive must be guarded by rcu_read_lock().
+ */
+static inline void hlist_add_head_rcu(struct hlist_node *n,
+                                        struct hlist_head *h)
+{
+        struct hlist_node *first = h->first;
+
+        n->next = first;
+        n->pprev = &h->first;
+        rcu_assign_pointer(h->first, n);
+        if (first)
+                first->pprev = &n->next;
+}
+
+/**
+ * hlist_add_before_rcu
+ * @n: the new element to add to the hash list.
+ * @next: the existing element to add the new element before.
+ *
+ * Description:
+ * Adds the specified element to the specified hlist
+ * before the specified node while permitting racing traversals.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as hlist_add_head_rcu()
+ * or hlist_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * hlist_for_each_entry_rcu(), used to prevent memory-consistency
+ * problems on Alpha CPUs.
+ */
+static inline void hlist_add_before_rcu(struct hlist_node *n,
+                                        struct hlist_node *next)
+{
+        n->pprev = next->pprev;
+        n->next = next;
+        rcu_assign_pointer(*(n->pprev), n);
+        next->pprev = &n->next;
+}
+
+/**
+ * hlist_add_after_rcu
+ * @prev: the existing element to add the new element after.
+ * @n: the new element to add to the hash list.
+ *
+ * Description:
+ * Adds the specified element to the specified hlist
+ * after the specified node while permitting racing traversals.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as hlist_add_head_rcu()
+ * or hlist_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * hlist_for_each_entry_rcu(), used to prevent memory-consistency
+ * problems on Alpha CPUs.
+ */
+static inline void hlist_add_after_rcu(struct hlist_node *prev,
+                                       struct hlist_node *n)
+{
+        n->next = prev->next;
+        n->pprev = &prev->next;
+        rcu_assign_pointer(prev->next, n);
+        if (n->next)
+                n->next->pprev = &n->next;
+}
+
+/**
+ * hlist_for_each_entry_rcu - iterate over rcu list of given type
+ * @tpos:       the type * to use as a loop cursor.
+ * @pos:        the &struct hlist_node to use as a loop cursor.
+ * @head:       the head for your list.
+ * @member:     the name of the hlist_node within the struct.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+#define hlist_for_each_entry_rcu(tpos, pos, head, member)                \
+        for (pos = rcu_dereference((head)->first);                       \
+                pos && ({ prefetch(pos->next); 1; }) &&                  \
+                ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; }); \
+                pos = rcu_dereference(pos->next))
 
-#endif  /* _LINUX_RCULIST_H */
+#endif  /* __KERNEL__ */
+#endif
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index d42dbec0608..e8b4039cfb2 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -40,6 +40,7 @@
 #include <linux/cpumask.h>
 #include <linux/seqlock.h>
 #include <linux/lockdep.h>
+#include <linux/completion.h>
 
 /**
  * struct rcu_head - callback structure for use with RCU
@@ -168,6 +169,27 @@ struct rcu_head {
                 (p) = (v); \
         })
 
+/* Infrastructure to implement the synchronize_() primitives. */
+
+struct rcu_synchronize {
+        struct rcu_head head;
+        struct completion completion;
+};
+
+extern void wakeme_after_rcu(struct rcu_head  *head);
+
+#define synchronize_rcu_xxx(name, func) \
+void name(void) \
+{ \
+        struct rcu_synchronize rcu; \
+        \
+        init_completion(&rcu.completion); \
+        /* Will wake me after RCU finished. */ \
+        func(&rcu.head, wakeme_after_rcu); \
+        /* Wait for it. */ \
+        wait_for_completion(&rcu.completion); \
+}
+
 /**
  * synchronize_sched - block until all CPUs have exited any non-preemptive
  * kernel code sequences.
@@ -224,8 +246,8 @@ extern void call_rcu_bh(struct rcu_head *head,
 /* Exported common interfaces */
 extern void synchronize_rcu(void);
 extern void rcu_barrier(void);
-extern long rcu_batches_completed(void);
-extern long rcu_batches_completed_bh(void);
+extern void rcu_barrier_bh(void);
+extern void rcu_barrier_sched(void);
 
 /* Internal to kernel */
 extern void rcu_init(void);
diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h
index 8a05c7e20bc..f04b64eca63 100644
--- a/include/linux/rcupreempt.h
+++ b/include/linux/rcupreempt.h
@@ -40,10 +40,39 @@
 #include <linux/cpumask.h>
 #include <linux/seqlock.h>
 
-#define rcu_qsctr_inc(cpu)
+struct rcu_dyntick_sched {
+        int dynticks;
+        int dynticks_snap;
+        int sched_qs;
+        int sched_qs_snap;
+        int sched_dynticks_snap;
+};
+
+DECLARE_PER_CPU(struct rcu_dyntick_sched, rcu_dyntick_sched);
+
+static inline void rcu_qsctr_inc(int cpu)
+{
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
+
+        rdssp->sched_qs++;
+}
 #define rcu_bh_qsctr_inc(cpu)
 #define call_rcu_bh(head, rcu) call_rcu(head, rcu)
 
+/**
+ * call_rcu_sched - Queue RCU callback for invocation after sched grace period.
+ * @head: structure to be used for queueing the RCU updates.
+ * @func: actual update function to be invoked after the grace period
+ *
+ * The update function will be invoked some time after a full
+ * synchronize_sched()-style grace period elapses, in other words after
+ * all currently executing preempt-disabled sections of code (including
+ * hardirq handlers, NMI handlers, and local_irq_save() blocks) have
+ * completed.
+ */
+extern void call_rcu_sched(struct rcu_head *head,
+                           void (*func)(struct rcu_head *head));
+
 extern void __rcu_read_lock(void)       __acquires(RCU);
 extern void __rcu_read_unlock(void)     __releases(RCU);
 extern int rcu_pending(int cpu);
@@ -55,6 +84,7 @@ extern int rcu_needs_cpu(int cpu);
 extern void __synchronize_sched(void);
 
 extern void __rcu_init(void);
+extern void rcu_init_sched(void);
 extern void rcu_check_callbacks(int cpu, int user);
 extern void rcu_restart_cpu(int cpu);
 extern long rcu_batches_completed(void);
@@ -81,20 +111,20 @@ extern struct rcupreempt_trace *rcupreempt_trace_cpu(int cpu);
 struct softirq_action;
 
 #ifdef CONFIG_NO_HZ
-DECLARE_PER_CPU(long, dynticks_progress_counter);
+DECLARE_PER_CPU(struct rcu_dyntick_sched, rcu_dyntick_sched);
 
 static inline void rcu_enter_nohz(void)
 {
         smp_mb(); /* CPUs seeing ++ must see prior RCU read-side crit sects */
-        __get_cpu_var(dynticks_progress_counter)++;
-        WARN_ON(__get_cpu_var(dynticks_progress_counter) & 0x1);
+        __get_cpu_var(rcu_dyntick_sched).dynticks++;
+        WARN_ON(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1);
 }
 
 static inline void rcu_exit_nohz(void)
 {
-        __get_cpu_var(dynticks_progress_counter)++;
         smp_mb(); /* CPUs seeing ++ must see later RCU read-side crit sects */
-        WARN_ON(!(__get_cpu_var(dynticks_progress_counter) & 0x1));
+        __get_cpu_var(rcu_dyntick_sched).dynticks++;
+        WARN_ON(!(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1));
 }
 
 #else /* CONFIG_NO_HZ */
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 55232ccf9cf..48262f86c96 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -7,9 +7,18 @@
  */
 
 #include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/cpumask.h>
 
 extern void cpu_idle(void);
 
+struct call_single_data {
+        struct list_head list;
+        void (*func) (void *info);
+        void *info;
+        unsigned int flags;
+};
+
 #ifdef CONFIG_SMP
 
 #include <linux/preempt.h>
@@ -52,15 +61,34 @@ extern void smp_cpus_done(unsigned int max_cpus);
 /*
  * Call a function on all other processors
  */
-int smp_call_function(void(*func)(void *info), void *info, int retry, int wait);
-
+int smp_call_function(void(*func)(void *info), void *info, int wait);
+int smp_call_function_mask(cpumask_t mask, void(*func)(void *info), void *info,
+                                int wait);
 int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
-                                int retry, int wait);
+                                int wait);
+void __smp_call_function_single(int cpuid, struct call_single_data *data);
+
+/*
+ * Generic and arch helpers
+ */
+#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
+void generic_smp_call_function_single_interrupt(void);
+void generic_smp_call_function_interrupt(void);
+void init_call_single_data(void);
+void ipi_call_lock(void);
+void ipi_call_unlock(void);
+void ipi_call_lock_irq(void);
+void ipi_call_unlock_irq(void);
+#else
+static inline void init_call_single_data(void)
+{
+}
+#endif
 
 /*
  * Call a function on all processors
  */
-int on_each_cpu(void (*func) (void *info), void *info, int retry, int wait);
+int on_each_cpu(void (*func) (void *info), void *info, int wait);
 
 #define MSG_ALL_BUT_SELF        0x8000  /* Assume <32768 CPU's */
 #define MSG_ALL                 0x8001
@@ -90,9 +118,9 @@ static inline int up_smp_call_function(void (*func)(void *), void *info)
 {
         return 0;
 }
-#define smp_call_function(func, info, retry, wait) \
+#define smp_call_function(func, info, wait) \
                         (up_smp_call_function(func, info))
-#define on_each_cpu(func,info,retry,wait)       \
+#define on_each_cpu(func,info,wait)             \
         ({                                      \
                 local_irq_disable();            \
                 func(info);                     \
@@ -102,7 +130,7 @@ static inline int up_smp_call_function(void (*func)(void *), void *info)
 static inline void smp_send_reschedule(int cpu) { }
 #define num_booting_cpus()                      1
 #define smp_prepare_boot_cpu()                  do {} while (0)
-#define smp_call_function_single(cpuid, func, info, retry, wait) \
+#define smp_call_function_single(cpuid, func, info, wait) \
 ({ \
         WARN_ON(cpuid != 0);    \
         local_irq_disable();    \
@@ -112,7 +140,9 @@ static inline void smp_send_reschedule(int cpu) { }
 })
 #define smp_call_function_mask(mask, func, info, wait) \
                         (up_smp_call_function(func, info))
-
+static inline void init_call_single_data(void)
+{
+}
 #endif /* !SMP */
 
 /*
diff --git a/include/linux/topology.h b/include/linux/topology.h
index 24f3d2282e1..2158fc0d5a5 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -179,4 +179,17 @@ void arch_update_cpu_topology(void);
 #endif
 #endif /* CONFIG_NUMA */
 
+#ifndef topology_physical_package_id
+#define topology_physical_package_id(cpu)       ((void)(cpu), -1)
+#endif
+#ifndef topology_core_id
+#define topology_core_id(cpu)                   ((void)(cpu), 0)
+#endif
+#ifndef topology_thread_siblings
+#define topology_thread_siblings(cpu)           cpumask_of_cpu(cpu)
+#endif
+#ifndef topology_core_siblings
+#define topology_core_siblings(cpu)             cpumask_of_cpu(cpu)
+#endif
+
 #endif /* _LINUX_TOPOLOGY_H */
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index bd91987c065..12b15c561a1 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -63,6 +63,7 @@ struct writeback_control {
         unsigned for_writepages:1;      /* This is a writepages() call */
         unsigned range_cyclic:1;        /* range_start is cyclic */
         unsigned more_io:1;             /* more io to be dispatched */
+        unsigned range_cont:1;
 };
 
 /*
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index c36750ff6ae..483057b2f4b 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -2,29 +2,33 @@
  * Copyright (c) 2005 Voltaire Inc.  All rights reserved.
  * Copyright (c) 2005 Intel Corporation.  All rights reserved.
  *
- * This Software is licensed under one of the following licenses:
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
  *
- * 1) under the terms of the "Common Public License 1.0" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/cpl.php.
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
  *
- * 2) under the terms of the "The BSD License" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/bsd-license.php.
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
  *
- * 3) under the terms of the "GNU General Public License (GPL) Version 2" a
- *    copy of which is available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/gpl-license.php.
- *
- * Licensee has the right to choose one of the above licenses.
- *
- * Redistributions of source code must retain the above copyright
- * notice and one of the license notices.
- *
- * Redistributions in binary form must reproduce both the above copyright
- * notice, one of the license notices in the documentation
- * and/or other materials provided with the distribution.
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #if !defined(IB_ADDR_H)
@@ -57,6 +61,7 @@ struct rdma_dev_addr {
         unsigned char dst_dev_addr[MAX_ADDR_LEN];
         unsigned char broadcast[MAX_ADDR_LEN];
         enum rdma_node_type dev_type;
+        struct net_device *src_dev;
 };
 
 /**
diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
index f179d233ffc..00a2b8ec327 100644
--- a/include/rdma/ib_cache.h
+++ b/include/rdma/ib_cache.h
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_cache.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #ifndef _IB_CACHE_H
diff --git a/include/rdma/ib_cm.h b/include/rdma/ib_cm.h
index a627c8682d2..ec7c6d99ed3 100644
--- a/include/rdma/ib_cm.h
+++ b/include/rdma/ib_cm.h
@@ -31,8 +31,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_cm.h 4311 2005-12-05 18:42:01Z sean.hefty $
  */
 #if !defined(IB_CM_H)
 #define IB_CM_H
diff --git a/include/rdma/ib_fmr_pool.h b/include/rdma/ib_fmr_pool.h
index 00dadbf94e1..f62b842e659 100644
--- a/include/rdma/ib_fmr_pool.h
+++ b/include/rdma/ib_fmr_pool.h
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_fmr_pool.h 2730 2005-06-28 16:43:03Z sean.hefty $
  */
 
 #if !defined(IB_FMR_POOL_H)
@@ -61,7 +59,7 @@ struct ib_fmr_pool_param {
         int                     pool_size;
         int                     dirty_watermark;
         void                  (*flush_function)(struct ib_fmr_pool *pool,
-                                                void *              arg);
+                                                void               *arg);
         void                   *flush_arg;
         unsigned                cache:1;
 };
diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index 7228c056b9e..5f6c40fffcf 100644
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -32,11 +32,9 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_mad.h 5596 2006-03-03 01:00:07Z sean.hefty $
  */
 
-#if !defined( IB_MAD_H )
+#if !defined(IB_MAD_H)
 #define IB_MAD_H
 
 #include <linux/list.h>
@@ -194,8 +192,7 @@ struct ib_vendor_mad {
         u8                      data[IB_MGMT_VENDOR_DATA];
 };
 
-struct ib_class_port_info
-{
+struct ib_class_port_info {
         u8                      base_version;
         u8                      class_version;
         __be16                  capability_mask;
@@ -614,11 +611,11 @@ int ib_process_mad_wc(struct ib_mad_agent *mad_agent,
  * any class specific header, and MAD data area.
  * If @rmpp_active is set, the RMPP header will be initialized for sending.
  */
-struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent,
-                                            u32 remote_qpn, u16 pkey_index,
-                                            int rmpp_active,
-                                            int hdr_len, int data_len,
-                                            gfp_t gfp_mask);
+struct ib_mad_send_buf *ib_create_send_mad(struct ib_mad_agent *mad_agent,
+                                           u32 remote_qpn, u16 pkey_index,
+                                           int rmpp_active,
+                                           int hdr_len, int data_len,
+                                           gfp_t gfp_mask);
 
 /**
  * ib_is_mad_class_rmpp - returns whether given management class
diff --git a/include/rdma/ib_pack.h b/include/rdma/ib_pack.h
index f926020d633..d7fc45c4eba 100644
--- a/include/rdma/ib_pack.h
+++ b/include/rdma/ib_pack.h
@@ -28,8 +28,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_pack.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #ifndef IB_PACK_H
diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h
index 942692b0b92..3841c1aff69 100644
--- a/include/rdma/ib_sa.h
+++ b/include/rdma/ib_sa.h
@@ -30,8 +30,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_sa.h 2811 2005-07-06 18:11:43Z halr $
  */
 
 #ifndef IB_SA_H
diff --git a/include/rdma/ib_smi.h b/include/rdma/ib_smi.h
index f29af135ba8..aaca0878668 100644
--- a/include/rdma/ib_smi.h
+++ b/include/rdma/ib_smi.h
@@ -32,11 +32,9 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_smi.h 1389 2004-12-27 22:56:47Z roland $
  */
 
-#if !defined( IB_SMI_H )
+#if !defined(IB_SMI_H)
 #define IB_SMI_H
 
 #include <rdma/ib_mad.h>
diff --git a/include/rdma/ib_user_cm.h b/include/rdma/ib_user_cm.h
index 37650afb982..bd3d380781e 100644
--- a/include/rdma/ib_user_cm.h
+++ b/include/rdma/ib_user_cm.h
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_user_cm.h 4019 2005-11-11 00:33:09Z sean.hefty $
  */
 
 #ifndef IB_USER_CM_H
diff --git a/include/rdma/ib_user_mad.h b/include/rdma/ib_user_mad.h
index 29d2c7205a9..d6fce1cbdb9 100644
--- a/include/rdma/ib_user_mad.h
+++ b/include/rdma/ib_user_mad.h
@@ -29,8 +29,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_user_mad.h 2814 2005-07-06 19:14:09Z halr $
  */
 
 #ifndef IB_USER_MAD_H
diff --git a/include/rdma/ib_user_verbs.h b/include/rdma/ib_user_verbs.h
index 8d65bf0a625..a17f7710614 100644
--- a/include/rdma/ib_user_verbs.h
+++ b/include/rdma/ib_user_verbs.h
@@ -31,8 +31,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_user_verbs.h 4019 2005-11-11 00:33:09Z sean.hefty $
  */
 
 #ifndef IB_USER_VERBS_H
@@ -291,7 +289,10 @@ struct ib_uverbs_wc {
         __u32 opcode;
         __u32 vendor_err;
         __u32 byte_len;
-        __u32 imm_data;
+        union {
+                __u32 imm_data;
+                __u32 invalidate_rkey;
+        } ex;
         __u32 qp_num;
         __u32 src_qp;
         __u32 wc_flags;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 31d30b1852e..90b529f7a15 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -34,8 +34,6 @@
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
- *
- * $Id: ib_verbs.h 1349 2004-12-16 21:09:43Z roland $
  */
 
 #if !defined(IB_VERBS_H)
@@ -93,7 +91,7 @@ enum ib_device_cap_flags {
         IB_DEVICE_RC_RNR_NAK_GEN        = (1<<12),
         IB_DEVICE_SRQ_RESIZE            = (1<<13),
         IB_DEVICE_N_NOTIFY_CQ           = (1<<14),
-        IB_DEVICE_ZERO_STAG             = (1<<15),
+        IB_DEVICE_LOCAL_DMA_LKEY        = (1<<15),
         IB_DEVICE_RESERVED              = (1<<16), /* old SEND_W_INV */
         IB_DEVICE_MEM_WINDOW            = (1<<17),
         /*
@@ -105,6 +103,8 @@ enum ib_device_cap_flags {
          */
         IB_DEVICE_UD_IP_CSUM            = (1<<18),
         IB_DEVICE_UD_TSO                = (1<<19),
+        IB_DEVICE_MEM_MGT_EXTENSIONS    = (1<<21),
+        IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22),
 };
 
 enum ib_atomic_cap {
@@ -150,6 +150,7 @@ struct ib_device_attr {
         int                     max_srq;
         int                     max_srq_wr;
         int                     max_srq_sge;
+        unsigned int            max_fast_reg_page_list_len;
         u16                     max_pkeys;
         u8                      local_ca_ack_delay;
 };
@@ -226,6 +227,57 @@ static inline int ib_width_enum_to_int(enum ib_port_width width)
         }
 }
 
+struct ib_protocol_stats {
+        /* TBD... */
+};
+
+struct iw_protocol_stats {
+        u64     ipInReceives;
+        u64     ipInHdrErrors;
+        u64     ipInTooBigErrors;
+        u64     ipInNoRoutes;
+        u64     ipInAddrErrors;
+        u64     ipInUnknownProtos;
+        u64     ipInTruncatedPkts;
+        u64     ipInDiscards;
+        u64     ipInDelivers;
+        u64     ipOutForwDatagrams;
+        u64     ipOutRequests;
+        u64     ipOutDiscards;
+        u64     ipOutNoRoutes;
+        u64     ipReasmTimeout;
+        u64     ipReasmReqds;
+        u64     ipReasmOKs;
+        u64     ipReasmFails;
+        u64     ipFragOKs;
+        u64     ipFragFails;
+        u64     ipFragCreates;
+        u64     ipInMcastPkts;
+        u64     ipOutMcastPkts;
+        u64     ipInBcastPkts;
+        u64     ipOutBcastPkts;
+
+        u64     tcpRtoAlgorithm;
+        u64     tcpRtoMin;
+        u64     tcpRtoMax;
+        u64     tcpMaxConn;
+        u64     tcpActiveOpens;
+        u64     tcpPassiveOpens;
+        u64     tcpAttemptFails;
+        u64     tcpEstabResets;
+        u64     tcpCurrEstab;
+        u64     tcpInSegs;
+        u64     tcpOutSegs;
+        u64     tcpRetransSegs;
+        u64     tcpInErrs;
+        u64     tcpOutRsts;
+};
+
+union rdma_protocol_stats {
+        struct ib_protocol_stats        ib;
+        struct iw_protocol_stats        iw;
+};
+
 struct ib_port_attr {
         enum ib_port_state      state;
         enum ib_mtu             max_mtu;
@@ -413,6 +465,8 @@ enum ib_wc_opcode {
         IB_WC_FETCH_ADD,
         IB_WC_BIND_MW,
         IB_WC_LSO,
+        IB_WC_LOCAL_INV,
+        IB_WC_FAST_REG_MR,
 /*
  * Set value of IB_WC_RECV so consumers can test if a completion is a
  * receive by testing (opcode & IB_WC_RECV).
@@ -423,7 +477,8 @@ enum ib_wc_opcode {
 
 enum ib_wc_flags {
         IB_WC_GRH               = 1,
-        IB_WC_WITH_IMM          = (1<<1)
+        IB_WC_WITH_IMM          = (1<<1),
+        IB_WC_WITH_INVALIDATE   = (1<<2),
 };
 
 struct ib_wc {
@@ -433,7 +488,10 @@ struct ib_wc {
         u32                     vendor_err;
         u32                     byte_len;
         struct ib_qp           *qp;
-        __be32                  imm_data;
+        union {
+                __be32          imm_data;
+                u32             invalidate_rkey;
+        } ex;
         u32                     src_qp;
         int                     wc_flags;
         u16                     pkey_index;
@@ -498,7 +556,8 @@ enum ib_qp_type {
 };
 
 enum ib_qp_create_flags {
-        IB_QP_CREATE_IPOIB_UD_LSO       = 1 << 0,
+        IB_QP_CREATE_IPOIB_UD_LSO               = 1 << 0,
+        IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK   = 1 << 1,
 };
 
 struct ib_qp_init_attr {
@@ -627,6 +686,9 @@ enum ib_wr_opcode {
         IB_WR_ATOMIC_FETCH_AND_ADD,
         IB_WR_LSO,
         IB_WR_SEND_WITH_INV,
+        IB_WR_RDMA_READ_WITH_INV,
+        IB_WR_LOCAL_INV,
+        IB_WR_FAST_REG_MR,
 };
 
 enum ib_send_flags {
@@ -643,6 +705,12 @@ struct ib_sge {
         u32     lkey;
 };
 
+struct ib_fast_reg_page_list {
+        struct ib_device       *device;
+        u64                    *page_list;
+        unsigned int            max_page_list_len;
+};
+
 struct ib_send_wr {
         struct ib_send_wr      *next;
         u64                     wr_id;
@@ -675,6 +743,15 @@ struct ib_send_wr {
                         u16     pkey_index; /* valid for GSI only */
                         u8      port_num;   /* valid for DR SMPs on switch only */
                 } ud;
+                struct {
+                        u64                             iova_start;
+                        struct ib_fast_reg_page_list   *page_list;
+                        unsigned int                    page_shift;
+                        unsigned int                    page_list_len;
+                        u32                             length;
+                        int                             access_flags;
+                        u32                             rkey;
+                } fast_reg;
         } wr;
 };
 
@@ -777,7 +854,7 @@ struct ib_cq {
         struct ib_uobject      *uobject;
         ib_comp_handler         comp_handler;
         void                  (*event_handler)(struct ib_event *, void *);
-        void *                  cq_context;
+        void                   *cq_context;
         int                     cqe;
         atomic_t                usecnt; /* count number of work queues */
 };
@@ -883,7 +960,7 @@ struct ib_dma_mapping_ops {
         void            (*sync_single_for_cpu)(struct ib_device *dev,
                                                u64 dma_handle,
                                                size_t size,
-                                               enum dma_data_direction dir);
+                                               enum dma_data_direction dir);
         void            (*sync_single_for_device)(struct ib_device *dev,
                                                   u64 dma_handle,
                                                   size_t size,
@@ -919,6 +996,8 @@ struct ib_device {
 
         struct iw_cm_verbs           *iwcm;
 
+        int                        (*get_protocol_stats)(struct ib_device *device,
+                                                         union rdma_protocol_stats *stats);
         int                        (*query_device)(struct ib_device *device,
                                                    struct ib_device_attr *device_attr);
         int                        (*query_port)(struct ib_device *device,
@@ -1013,6 +1092,11 @@ struct ib_device {
         int                        (*query_mr)(struct ib_mr *mr,
                                                struct ib_mr_attr *mr_attr);
         int                        (*dereg_mr)(struct ib_mr *mr);
+        struct ib_mr *             (*alloc_fast_reg_mr)(struct ib_pd *pd,
+                                               int max_page_list_len);
+        struct ib_fast_reg_page_list * (*alloc_fast_reg_page_list)(struct ib_device *device,
+                                                                   int page_list_len);
+        void                       (*free_fast_reg_page_list)(struct ib_fast_reg_page_list *page_list);
         int                        (*rereg_phys_mr)(struct ib_mr *mr,
                                                     int mr_rereg_mask,
                                                     struct ib_pd *pd,
@@ -1065,6 +1149,7 @@ struct ib_device {
 
         char                         node_desc[64];
         __be64                       node_guid;
+        u32                          local_dma_lkey;
         u8                           node_type;
         u8                           phys_port_cnt;
 };
@@ -1807,6 +1892,54 @@ int ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr);
 int ib_dereg_mr(struct ib_mr *mr);
 
 /**
+ * ib_alloc_fast_reg_mr - Allocates memory region usable with the
+ *   IB_WR_FAST_REG_MR send work request.
+ * @pd: The protection domain associated with the region.
+ * @max_page_list_len: requested max physical buffer list length to be
+ *   used with fast register work requests for this MR.
+ */
+struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len);
+
+/**
+ * ib_alloc_fast_reg_page_list - Allocates a page list array
+ * @device - ib device pointer.
+ * @page_list_len - size of the page list array to be allocated.
+ *
+ * This allocates and returns a struct ib_fast_reg_page_list * and a
+ * page_list array that is at least page_list_len in size.  The actual
+ * size is returned in max_page_list_len.  The caller is responsible
+ * for initializing the contents of the page_list array before posting
+ * a send work request with the IB_WC_FAST_REG_MR opcode.
+ *
+ * The page_list array entries must be translated using one of the
+ * ib_dma_*() functions just like the addresses passed to
+ * ib_map_phys_fmr().  Once the ib_post_send() is issued, the struct
+ * ib_fast_reg_page_list must not be modified by the caller until the
+ * IB_WC_FAST_REG_MR work request completes.
+ */
+struct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list(
+                                struct ib_device *device, int page_list_len);
+
+/**
+ * ib_free_fast_reg_page_list - Deallocates a previously allocated
+ *   page list array.
+ * @page_list - struct ib_fast_reg_page_list pointer to be deallocated.
+ */
+void ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list);
+
+/**
+ * ib_update_fast_reg_key - updates the key portion of the fast_reg MR
+ *   R_Key and L_Key.
+ * @mr - struct ib_mr pointer to be updated.
+ * @newkey - new key to be used.
+ */
+static inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey)
+{
+        mr->lkey = (mr->lkey & 0xffffff00) | newkey;
+        mr->rkey = (mr->rkey & 0xffffff00) | newkey;
+}
+
+/**
  * ib_alloc_mw - Allocates a memory window.
  * @pd: The protection domain associated with the memory window.
  */
diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
index aeefa9b740d..cbb822e8d79 100644
--- a/include/rdma/iw_cm.h
+++ b/include/rdma/iw_cm.h
@@ -62,7 +62,7 @@ struct iw_cm_event {
         struct sockaddr_in remote_addr;
         void *private_data;
         u8 private_data_len;
-        void* provider_data;
+        void *provider_data;
 };
 
 /**
diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h
index 010f876f41d..22bb2e7bab1 100644
--- a/include/rdma/rdma_cm.h
+++ b/include/rdma/rdma_cm.h
@@ -2,29 +2,33 @@
  * Copyright (c) 2005 Voltaire Inc.  All rights reserved.
  * Copyright (c) 2005 Intel Corporation.  All rights reserved.
  *
- * This Software is licensed under one of the following licenses:
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
  *
- * 1) under the terms of the "Common Public License 1.0" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/cpl.php.
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
  *
- * 2) under the terms of the "The BSD License" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/bsd-license.php.
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
  *
- * 3) under the terms of the "GNU General Public License (GPL) Version 2" a
- *    copy of which is available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/gpl-license.php.
- *
- * Licensee has the right to choose one of the above licenses.
- *
- * Redistributions of source code must retain the above copyright
- * notice and one of the license notices.
- *
- * Redistributions in binary form must reproduce both the above copyright
- * notice, one of the license notices in the documentation
- * and/or other materials provided with the distribution.
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
  *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #if !defined(RDMA_CM_H)
@@ -57,11 +61,11 @@ enum rdma_cm_event_type {
 };
 
 enum rdma_port_space {
-        RDMA_PS_SDP  = 0x0001,
-        RDMA_PS_IPOIB= 0x0002,
-        RDMA_PS_TCP  = 0x0106,
-        RDMA_PS_UDP  = 0x0111,
-        RDMA_PS_SCTP = 0x0183
+        RDMA_PS_SDP   = 0x0001,
+        RDMA_PS_IPOIB = 0x0002,
+        RDMA_PS_TCP   = 0x0106,
+        RDMA_PS_UDP   = 0x0111,
+        RDMA_PS_SCTP  = 0x0183
 };
 
 struct rdma_addr {
diff --git a/include/rdma/rdma_cm_ib.h b/include/rdma/rdma_cm_ib.h
index 950424b38f1..2389c3b4540 100644
--- a/include/rdma/rdma_cm_ib.h
+++ b/include/rdma/rdma_cm_ib.h
@@ -1,29 +1,33 @@
 /*
  * Copyright (c) 2006 Intel Corporation.  All rights reserved.
  *
- * This Software is licensed under one of the following licenses:
- *
- * 1) under the terms of the "Common Public License 1.0" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/cpl.php.
- *
- * 2) under the terms of the "The BSD License" a copy of which is
- *    available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/bsd-license.php.
- *
- * 3) under the terms of the "GNU General Public License (GPL) Version 2" a
- *    copy of which is available from the Open Source Initiative, see
- *    http://www.opensource.org/licenses/gpl-license.php.
- *
- * Licensee has the right to choose one of the above licenses.
- *
- * Redistributions of source code must retain the above copyright
- * notice and one of the license notices.
- *
- * Redistributions in binary form must reproduce both the above copyright
- * notice, one of the license notices in the documentation
- * and/or other materials provided with the distribution.
- *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #if !defined(RDMA_CM_IB_H)
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index f6a9fe0ef09..00b78763a1b 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -134,6 +134,7 @@ struct scsi_device {
         unsigned no_start_on_add:1;     /* do not issue start on add */
         unsigned allow_restart:1; /* issue START_UNIT in error handler */
         unsigned manage_start_stop:1;   /* Let HLD (sd) manage start/stop */
+        unsigned start_stop_pwr_cond:1; /* Set power cond. in START_STOP_UNIT */
         unsigned no_uld_attach:1; /* disable connecting to upper level drivers */
         unsigned select_no_atn:1;
         unsigned fix_capacity:1;        /* READ_CAPACITY is too high by 1 */
diff --git a/init/main.c b/init/main.c
index f7fb20021d4..edeace036fd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -31,6 +31,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/start_kernel.h>
 #include <linux/security.h>
+#include <linux/smp.h>
 #include <linux/workqueue.h>
 #include <linux/profile.h>
 #include <linux/rcupdate.h>
@@ -758,6 +759,7 @@ static void __init do_initcalls(void)
  */
 static void __init do_basic_setup(void)
 {
+        rcu_init_sched(); /* needed by module_init stage. */
         /* drivers will send hotplug events */
         init_workqueues();
         usermodehelper_init();
@@ -779,6 +781,7 @@ static void __init do_pre_smp_initcalls(void)
 {
         extern int spawn_ksoftirqd(void);
 
+        init_call_single_data();
         migration_init();
         spawn_ksoftirqd();
         if (!nosoftlockup)
diff --git a/kernel/Makefile b/kernel/Makefile
index f6328e16dfd..0a7ed838984 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_RT_MUTEXES) += rtmutex.o
 obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o
 obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o
 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
+obj-$(CONFIG_USE_GENERIC_SMP_HELPERS) += smp.o
 obj-$(CONFIG_SMP) += spinlock.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
 obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
diff --git a/kernel/backtracetest.c b/kernel/backtracetest.c
index d1a7605c5b8..a5e026bc45c 100644
--- a/kernel/backtracetest.c
+++ b/kernel/backtracetest.c
@@ -10,30 +10,73 @@
  * of the License.
  */
 
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/sched.h>
-#include <linux/delay.h>
+#include <linux/stacktrace.h>
+
+static void backtrace_test_normal(void)
+{
+        printk("Testing a backtrace from process context.\n");
+        printk("The following trace is a kernel self test and not a bug!\n");
 
-static struct timer_list backtrace_timer;
+        dump_stack();
+}
 
-static void backtrace_test_timer(unsigned long data)
+static DECLARE_COMPLETION(backtrace_work);
+
+static void backtrace_test_irq_callback(unsigned long data)
+{
+        dump_stack();
+        complete(&backtrace_work);
+}
+
+static DECLARE_TASKLET(backtrace_tasklet, &backtrace_test_irq_callback, 0);
+
+static void backtrace_test_irq(void)
 {
         printk("Testing a backtrace from irq context.\n");
         printk("The following trace is a kernel self test and not a bug!\n");
-        dump_stack();
+
+        init_completion(&backtrace_work);
+        tasklet_schedule(&backtrace_tasklet);
+        wait_for_completion(&backtrace_work);
+}
+
+#ifdef CONFIG_STACKTRACE
+static void backtrace_test_saved(void)
+{
+        struct stack_trace trace;
+        unsigned long entries[8];
+
+        printk("Testing a saved backtrace.\n");
+        printk("The following trace is a kernel self test and not a bug!\n");
+
+        trace.nr_entries = 0;
+        trace.max_entries = ARRAY_SIZE(entries);
+        trace.entries = entries;
+        trace.skip = 0;
+
+        save_stack_trace(&trace);
+        print_stack_trace(&trace, 0);
+}
+#else
+static void backtrace_test_saved(void)
+{
+        printk("Saved backtrace test skipped.\n");
 }
+#endif
+
 static int backtrace_regression_test(void)
 {
         printk("====[ backtrace testing ]===========\n");
-        printk("Testing a backtrace from process context.\n");
-        printk("The following trace is a kernel self test and not a bug!\n");
-        dump_stack();
 
-        init_timer(&backtrace_timer);
-        backtrace_timer.function = backtrace_test_timer;
-        mod_timer(&backtrace_timer, jiffies + 10);
+        backtrace_test_normal();
+        backtrace_test_irq();
+        backtrace_test_saved();
 
-        msleep(10);
         printk("====[ end of backtrace testing ]====\n");
         return 0;
 }
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 27a83ee4144..b8e4dce80a7 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -300,11 +300,10 @@ EXPORT_SYMBOL_GPL(ktime_sub_ns);
  */
 u64 ktime_divns(const ktime_t kt, s64 div)
 {
-        u64 dclc, inc, dns;
+        u64 dclc;
         int sft = 0;
 
-        dclc = dns = ktime_to_ns(kt);
-        inc = div;
+        dclc = ktime_to_ns(kt);
         /* Make sure the divisor is less than 2^32: */
         while (div >> 32) {
                 sft++;
@@ -623,7 +622,7 @@ static void retrigger_next_event(void *arg)
 void clock_was_set(void)
 {
         /* Retrigger the CPU local events everywhere */
-        on_each_cpu(retrigger_next_event, NULL, 0, 1);
+        on_each_cpu(retrigger_next_event, NULL, 1);
 }
 
 /*
@@ -632,8 +631,6 @@ void clock_was_set(void)
  */
 void hres_timers_resume(void)
 {
-        WARN_ON_ONCE(num_online_cpus() > 1);
-
         /* Retrigger the CPU local events: */
         retrigger_next_event(NULL);
 }
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 46d6611a33b..77a51be3601 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -17,6 +17,8 @@
 
 #ifdef CONFIG_SMP
 
+cpumask_t irq_default_affinity = CPU_MASK_ALL;
+
 /**
  *      synchronize_irq - wait for pending IRQ handlers (on other CPUs)
  *      @irq: interrupt number to wait for
@@ -95,6 +97,27 @@ int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
         return 0;
 }
 
+#ifndef CONFIG_AUTO_IRQ_AFFINITY
+/*
+ * Generic version of the affinity autoselector.
+ */
+int irq_select_affinity(unsigned int irq)
+{
+        cpumask_t mask;
+
+        if (!irq_can_set_affinity(irq))
+                return 0;
+
+        cpus_and(mask, cpu_online_map, irq_default_affinity);
+
+        irq_desc[irq].affinity = mask;
+        irq_desc[irq].chip->set_affinity(irq, mask);
+
+        set_balance_irq_affinity(irq, mask);
+        return 0;
+}
+#endif
+
 #endif
 
 /**
@@ -354,7 +377,7 @@ int setup_irq(unsigned int irq, struct irqaction *new)
 
                 /* Setup the type (level, edge polarity) if configured: */
                 if (new->flags & IRQF_TRIGGER_MASK) {
-                        if (desc->chip && desc->chip->set_type)
+                        if (desc->chip->set_type)
                                 desc->chip->set_type(irq,
                                                 new->flags & IRQF_TRIGGER_MASK);
                         else
@@ -364,8 +387,7 @@ int setup_irq(unsigned int irq, struct irqaction *new)
                                  */
                                 printk(KERN_WARNING "No IRQF_TRIGGER set_type "
                                        "function for IRQ %d (%s)\n", irq,
-                                       desc->chip ? desc->chip->name :
-                                       "unknown");
+                                       desc->chip->name);
                 } else
                         compat_irq_chip_set_default_handler(desc);
 
@@ -382,6 +404,9 @@ int setup_irq(unsigned int irq, struct irqaction *new)
                 } else
                         /* Undo nested disables: */
                         desc->depth = 1;
+
+                /* Set default affinity mask once everything is setup */
+                irq_select_affinity(irq);
         }
         /* Reset broken irq detection when installing new handler */
         desc->irq_count = 0;
@@ -571,8 +596,6 @@ int request_irq(unsigned int irq, irq_handler_t handler,
         action->next = NULL;
         action->dev_id = dev_id;
 
-        select_smp_affinity(irq);
-
 #ifdef CONFIG_DEBUG_SHIRQ
         if (irqflags & IRQF_SHARED) {
                 /*
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index c2f2ccb0549..6c6d35d68ee 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -44,7 +44,7 @@ static int irq_affinity_write_proc(struct file *file, const char __user *buffer,
                                    unsigned long count, void *data)
 {
         unsigned int irq = (int)(long)data, full_count = count, err;
-        cpumask_t new_value, tmp;
+        cpumask_t new_value;
 
         if (!irq_desc[irq].chip->set_affinity || no_irq_affinity ||
             irq_balancing_disabled(irq))
@@ -62,17 +62,51 @@ static int irq_affinity_write_proc(struct file *file, const char __user *buffer,
          * way to make the system unusable accidentally :-) At least
          * one online CPU still has to be targeted.
          */
-        cpus_and(tmp, new_value, cpu_online_map);
-        if (cpus_empty(tmp))
+        if (!cpus_intersects(new_value, cpu_online_map))
                 /* Special case for empty set - allow the architecture
                    code to set default SMP affinity. */
-                return select_smp_affinity(irq) ? -EINVAL : full_count;
+                return irq_select_affinity(irq) ? -EINVAL : full_count;
 
         irq_set_affinity(irq, new_value);
 
         return full_count;
 }
 
+static int default_affinity_read(char *page, char **start, off_t off,
+                                  int count, int *eof, void *data)
+{
+        int len = cpumask_scnprintf(page, count, irq_default_affinity);
+        if (count - len < 2)
+                return -EINVAL;
+        len += sprintf(page + len, "\n");
+        return len;
+}
+
+static int default_affinity_write(struct file *file, const char __user *buffer,
+                                   unsigned long count, void *data)
+{
+        unsigned int full_count = count, err;
+        cpumask_t new_value;
+
+        err = cpumask_parse_user(buffer, count, new_value);
+        if (err)
+                return err;
+
+        if (!is_affinity_mask_valid(new_value))
+                return -EINVAL;
+
+        /*
+         * Do not allow disabling IRQs completely - it's a too easy
+         * way to make the system unusable accidentally :-) At least
+         * one online CPU still has to be targeted.
+         */
+        if (!cpus_intersects(new_value, cpu_online_map))
+                return -EINVAL;
+
+        irq_default_affinity = new_value;
+
+        return full_count;
+}
 #endif
 
 static int irq_spurious_read(char *page, char **start, off_t off,
@@ -171,6 +205,21 @@ void unregister_handler_proc(unsigned int irq, struct irqaction *action)
                 remove_proc_entry(action->dir->name, irq_desc[irq].dir);
 }
 
+void register_default_affinity_proc(void)
+{
+#ifdef CONFIG_SMP
+        struct proc_dir_entry *entry;
+
+        /* create /proc/irq/default_smp_affinity */
+        entry = create_proc_entry("default_smp_affinity", 0600, root_irq_dir);
+        if (entry) {
+                entry->data = NULL;
+                entry->read_proc  = default_affinity_read;
+                entry->write_proc = default_affinity_write;
+        }
+#endif
+}
+
 void init_irq_proc(void)
 {
         int i;
@@ -180,6 +229,8 @@ void init_irq_proc(void)
         if (!root_irq_dir)
                 return;
 
+        register_default_affinity_proc();
+
         /*
          * Create entries for all existing IRQs.
          */
diff --git a/kernel/pid.c b/kernel/pid.c
index 20d59fa2d49..30bd5d4b2ac 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -30,6 +30,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+#include <linux/rculist.h>
 #include <linux/bootmem.h>
 #include <linux/hash.h>
 #include <linux/pid_namespace.h>
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index f1525ad06cb..c42a03aef36 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -1037,6 +1037,9 @@ static void check_thread_timers(struct task_struct *tsk,
                                 sig->rlim[RLIMIT_RTTIME].rlim_cur +=
                                                                 USEC_PER_SEC;
                         }
+                        printk(KERN_INFO
+                                "RT Watchdog Timeout: %s[%d]\n",
+                                tsk->comm, task_pid_nr(tsk));
                         __group_send_sig_info(SIGXCPU, SEND_SIG_PRIV, tsk);
                 }
         }
diff --git a/kernel/profile.c b/kernel/profile.c
index ae7ead82cbc..58926411eb2 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -252,7 +252,7 @@ static void profile_flip_buffers(void)
         mutex_lock(&profile_flip_mutex);
         j = per_cpu(cpu_profile_flip, get_cpu());
         put_cpu();
-        on_each_cpu(__profile_flip_buffers, NULL, 0, 1);
+        on_each_cpu(__profile_flip_buffers, NULL, 1);
         for_each_online_cpu(cpu) {
                 struct profile_hit *hits = per_cpu(cpu_profile_hits, cpu)[j];
                 for (i = 0; i < NR_PROFILE_HIT; ++i) {
@@ -275,7 +275,7 @@ static void profile_discard_flip_buffers(void)
         mutex_lock(&profile_flip_mutex);
         i = per_cpu(cpu_profile_flip, get_cpu());
         put_cpu();
-        on_each_cpu(__profile_flip_buffers, NULL, 0, 1);
+        on_each_cpu(__profile_flip_buffers, NULL, 1);
         for_each_online_cpu(cpu) {
                 struct profile_hit *hits = per_cpu(cpu_profile_hits, cpu)[i];
                 memset(hits, 0, NR_PROFILE_HIT*sizeof(struct profile_hit));
@@ -558,7 +558,7 @@ static int __init create_hash_tables(void)
 out_cleanup:
         prof_on = 0;
         smp_mb();
-        on_each_cpu(profile_nop, NULL, 0, 1);
+        on_each_cpu(profile_nop, NULL, 1);
         for_each_online_cpu(cpu) {
                 struct page *page;
 
diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c
index 65c0906080e..16eeeaa9d61 100644
--- a/kernel/rcuclassic.c
+++ b/kernel/rcuclassic.c
@@ -387,6 +387,10 @@ static void __rcu_offline_cpu(struct rcu_data *this_rdp,
         rcu_move_batch(this_rdp, rdp->donelist, rdp->donetail);
         rcu_move_batch(this_rdp, rdp->curlist, rdp->curtail);
         rcu_move_batch(this_rdp, rdp->nxtlist, rdp->nxttail);
+
+        local_irq_disable();
+        this_rdp->qlen += rdp->qlen;
+        local_irq_enable();
 }
 
 static void rcu_offline_cpu(int cpu)
@@ -516,10 +520,38 @@ void rcu_check_callbacks(int cpu, int user)
         if (user ||
             (idle_cpu(cpu) && !in_softirq() &&
                                 hardirq_count() <= (1 << HARDIRQ_SHIFT))) {
+
+                /*
+                 * Get here if this CPU took its interrupt from user
+                 * mode or from the idle loop, and if this is not a
+                 * nested interrupt.  In this case, the CPU is in
+                 * a quiescent state, so count it.
+                 *
+                 * Also do a memory barrier.  This is needed to handle
+                 * the case where writes from a preempt-disable section
+                 * of code get reordered into schedule() by this CPU's
+                 * write buffer.  The memory barrier makes sure that
+                 * the rcu_qsctr_inc() and rcu_bh_qsctr_inc() are see
+                 * by other CPUs to happen after any such write.
+                 */
+
+                smp_mb();  /* See above block comment. */
                 rcu_qsctr_inc(cpu);
                 rcu_bh_qsctr_inc(cpu);
-        } else if (!in_softirq())
+
+        } else if (!in_softirq()) {
+
+                /*
+                 * Get here if this CPU did not take its interrupt from
+                 * softirq, in other words, if it is not interrupting
+                 * a rcu_bh read-side critical section.  This is an _bh
+                 * critical section, so count it.  The memory barrier
+                 * is needed for the same reason as is the above one.
+                 */
+
+                smp_mb();  /* See above block comment. */
                 rcu_bh_qsctr_inc(cpu);
+        }
         raise_rcu_softirq();
 }
 
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index c09605f8d16..f14f372cf6f 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -39,16 +39,16 @@
 #include <linux/sched.h>
 #include <asm/atomic.h>
 #include <linux/bitops.h>
-#include <linux/completion.h>
 #include <linux/percpu.h>
 #include <linux/notifier.h>
 #include <linux/cpu.h>
 #include <linux/mutex.h>
 #include <linux/module.h>
 
-struct rcu_synchronize {
-        struct rcu_head head;
-        struct completion completion;
+enum rcu_barrier {
+        RCU_BARRIER_STD,
+        RCU_BARRIER_BH,
+        RCU_BARRIER_SCHED,
 };
 
 static DEFINE_PER_CPU(struct rcu_head, rcu_barrier_head) = {NULL};
@@ -60,7 +60,7 @@ static struct completion rcu_barrier_completion;
  * Awaken the corresponding synchronize_rcu() instance now that a
  * grace period has elapsed.
  */
-static void wakeme_after_rcu(struct rcu_head  *head)
+void wakeme_after_rcu(struct rcu_head  *head)
 {
         struct rcu_synchronize *rcu;
 
@@ -77,17 +77,7 @@ static void wakeme_after_rcu(struct rcu_head  *head)
  * sections are delimited by rcu_read_lock() and rcu_read_unlock(),
  * and may be nested.
  */
-void synchronize_rcu(void)
-{
-        struct rcu_synchronize rcu;
-
-        init_completion(&rcu.completion);
-        /* Will wake me after RCU finished */
-        call_rcu(&rcu.head, wakeme_after_rcu);
-
-        /* Wait for it */
-        wait_for_completion(&rcu.completion);
-}
+synchronize_rcu_xxx(synchronize_rcu, call_rcu)
 EXPORT_SYMBOL_GPL(synchronize_rcu);
 
 static void rcu_barrier_callback(struct rcu_head *notused)
@@ -99,19 +89,30 @@ static void rcu_barrier_callback(struct rcu_head *notused)
 /*
  * Called with preemption disabled, and from cross-cpu IRQ context.
  */
-static void rcu_barrier_func(void *notused)
+static void rcu_barrier_func(void *type)
 {
         int cpu = smp_processor_id();
         struct rcu_head *head = &per_cpu(rcu_barrier_head, cpu);
 
         atomic_inc(&rcu_barrier_cpu_count);
-        call_rcu(head, rcu_barrier_callback);
+        switch ((enum rcu_barrier)type) {
+        case RCU_BARRIER_STD:
+                call_rcu(head, rcu_barrier_callback);
+                break;
+        case RCU_BARRIER_BH:
+                call_rcu_bh(head, rcu_barrier_callback);
+                break;
+        case RCU_BARRIER_SCHED:
+                call_rcu_sched(head, rcu_barrier_callback);
+                break;
+        }
 }
 
-/**
- * rcu_barrier - Wait until all the in-flight RCUs are complete.
+/*
+ * Orchestrate the specified type of RCU barrier, waiting for all
+ * RCU callbacks of the specified type to complete.
  */
-void rcu_barrier(void)
+static void _rcu_barrier(enum rcu_barrier type)
 {
         BUG_ON(in_interrupt());
         /* Take cpucontrol mutex to protect against CPU hotplug */
@@ -127,13 +128,39 @@ void rcu_barrier(void)
          * until all the callbacks are queued.
          */
         rcu_read_lock();
-        on_each_cpu(rcu_barrier_func, NULL, 0, 1);
+        on_each_cpu(rcu_barrier_func, (void *)type, 1);
         rcu_read_unlock();
         wait_for_completion(&rcu_barrier_completion);
         mutex_unlock(&rcu_barrier_mutex);
 }
+
+/**
+ * rcu_barrier - Wait until all in-flight call_rcu() callbacks complete.
+ */
+void rcu_barrier(void)
+{
+        _rcu_barrier(RCU_BARRIER_STD);
+}
 EXPORT_SYMBOL_GPL(rcu_barrier);
 
+/**
+ * rcu_barrier_bh - Wait until all in-flight call_rcu_bh() callbacks complete.
+ */
+void rcu_barrier_bh(void)
+{
+        _rcu_barrier(RCU_BARRIER_BH);
+}
+EXPORT_SYMBOL_GPL(rcu_barrier_bh);
+
+/**
+ * rcu_barrier_sched - Wait for in-flight call_rcu_sched() callbacks.
+ */
+void rcu_barrier_sched(void)
+{
+        _rcu_barrier(RCU_BARRIER_SCHED);
+}
+EXPORT_SYMBOL_GPL(rcu_barrier_sched);
+
 void __init rcu_init(void)
 {
         __rcu_init();
diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c
index 9bf44566445..6f62b77d93c 100644
--- a/kernel/rcupreempt.c
+++ b/kernel/rcupreempt.c
@@ -46,11 +46,11 @@
 #include <asm/atomic.h>
 #include <linux/bitops.h>
 #include <linux/module.h>
+#include <linux/kthread.h>
 #include <linux/completion.h>
 #include <linux/moduleparam.h>
 #include <linux/percpu.h>
 #include <linux/notifier.h>
-#include <linux/rcupdate.h>
 #include <linux/cpu.h>
 #include <linux/random.h>
 #include <linux/delay.h>
@@ -82,14 +82,18 @@ struct rcu_data {
         spinlock_t      lock;           /* Protect rcu_data fields. */
         long            completed;      /* Number of last completed batch. */
         int             waitlistcount;
-        struct tasklet_struct rcu_tasklet;
         struct rcu_head *nextlist;
         struct rcu_head **nexttail;
         struct rcu_head *waitlist[GP_STAGES];
         struct rcu_head **waittail[GP_STAGES];
-        struct rcu_head *donelist;
+        struct rcu_head *donelist;      /* from waitlist & waitschedlist */
         struct rcu_head **donetail;
         long rcu_flipctr[2];
+        struct rcu_head *nextschedlist;
+        struct rcu_head **nextschedtail;
+        struct rcu_head *waitschedlist;
+        struct rcu_head **waitschedtail;
+        int rcu_sched_sleeping;
 #ifdef CONFIG_RCU_TRACE
         struct rcupreempt_trace trace;
 #endif /* #ifdef CONFIG_RCU_TRACE */
@@ -131,11 +135,24 @@ enum rcu_try_flip_states {
         rcu_try_flip_waitmb_state,
 };
 
+/*
+ * States for rcu_ctrlblk.rcu_sched_sleep.
+ */
+
+enum rcu_sched_sleep_states {
+        rcu_sched_not_sleeping, /* Not sleeping, callbacks need GP.  */
+        rcu_sched_sleep_prep,   /* Thinking of sleeping, rechecking. */
+        rcu_sched_sleeping,     /* Sleeping, awaken if GP needed. */
+};
+
 struct rcu_ctrlblk {
         spinlock_t      fliplock;       /* Protect state-machine transitions. */
         long            completed;      /* Number of last completed batch. */
         enum rcu_try_flip_states rcu_try_flip_state; /* The current state of
                                                         the rcu state machine */
+        spinlock_t      schedlock;      /* Protect rcu_sched sleep state. */
+        enum rcu_sched_sleep_states sched_sleep; /* rcu_sched state. */
+        wait_queue_head_t sched_wq;     /* Place for rcu_sched to sleep. */
 };
 
 static DEFINE_PER_CPU(struct rcu_data, rcu_data);
@@ -143,8 +160,12 @@ static struct rcu_ctrlblk rcu_ctrlblk = {
         .fliplock = __SPIN_LOCK_UNLOCKED(rcu_ctrlblk.fliplock),
         .completed = 0,
         .rcu_try_flip_state = rcu_try_flip_idle_state,
+        .schedlock = __SPIN_LOCK_UNLOCKED(rcu_ctrlblk.schedlock),
+        .sched_sleep = rcu_sched_not_sleeping,
+        .sched_wq = __WAIT_QUEUE_HEAD_INITIALIZER(rcu_ctrlblk.sched_wq),
 };
 
+static struct task_struct *rcu_sched_grace_period_task;
 
 #ifdef CONFIG_RCU_TRACE
 static char *rcu_try_flip_state_names[] =
@@ -207,6 +228,8 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(enum rcu_mb_flag_values, rcu_mb_flag)
  */
 #define RCU_TRACE_RDP(f, rdp) RCU_TRACE(f, &((rdp)->trace));
 
+#define RCU_SCHED_BATCH_TIME (HZ / 50)
+
 /*
  * Return the number of RCU batches processed thus far.  Useful
  * for debug and statistics.
@@ -411,32 +434,34 @@ static void __rcu_advance_callbacks(struct rcu_data *rdp)
         }
 }
 
-#ifdef CONFIG_NO_HZ
+DEFINE_PER_CPU_SHARED_ALIGNED(struct rcu_dyntick_sched, rcu_dyntick_sched) = {
+        .dynticks = 1,
+};
 
-DEFINE_PER_CPU(long, dynticks_progress_counter) = 1;
-static DEFINE_PER_CPU(long, rcu_dyntick_snapshot);
+#ifdef CONFIG_NO_HZ
 static DEFINE_PER_CPU(int, rcu_update_flag);
 
 /**
  * rcu_irq_enter - Called from Hard irq handlers and NMI/SMI.
  *
  * If the CPU was idle with dynamic ticks active, this updates the
- * dynticks_progress_counter to let the RCU handling know that the
+ * rcu_dyntick_sched.dynticks to let the RCU handling know that the
  * CPU is active.
  */
 void rcu_irq_enter(void)
 {
         int cpu = smp_processor_id();
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
 
         if (per_cpu(rcu_update_flag, cpu))
                 per_cpu(rcu_update_flag, cpu)++;
 
         /*
          * Only update if we are coming from a stopped ticks mode
-         * (dynticks_progress_counter is even).
+         * (rcu_dyntick_sched.dynticks is even).
          */
         if (!in_interrupt() &&
-            (per_cpu(dynticks_progress_counter, cpu) & 0x1) == 0) {
+            (rdssp->dynticks & 0x1) == 0) {
                 /*
                  * The following might seem like we could have a race
                  * with NMI/SMIs. But this really isn't a problem.
@@ -459,12 +484,12 @@ void rcu_irq_enter(void)
                  * RCU read-side critical sections on this CPU would
                  * have already completed.
                  */
-                per_cpu(dynticks_progress_counter, cpu)++;
+                rdssp->dynticks++;
                 /*
                  * The following memory barrier ensures that any
                  * rcu_read_lock() primitives in the irq handler
                  * are seen by other CPUs to follow the above
-                 * increment to dynticks_progress_counter. This is
+                 * increment to rcu_dyntick_sched.dynticks. This is
                  * required in order for other CPUs to correctly
                  * determine when it is safe to advance the RCU
                  * grace-period state machine.
@@ -472,7 +497,7 @@ void rcu_irq_enter(void)
                 smp_mb(); /* see above block comment. */
                 /*
                  * Since we can't determine the dynamic tick mode from
-                 * the dynticks_progress_counter after this routine,
+                 * the rcu_dyntick_sched.dynticks after this routine,
                  * we use a second flag to acknowledge that we came
                  * from an idle state with ticks stopped.
                  */
@@ -480,7 +505,7 @@ void rcu_irq_enter(void)
                 /*
                  * If we take an NMI/SMI now, they will also increment
                  * the rcu_update_flag, and will not update the
-                 * dynticks_progress_counter on exit. That is for
+                 * rcu_dyntick_sched.dynticks on exit. That is for
                  * this IRQ to do.
                  */
         }
@@ -490,12 +515,13 @@ void rcu_irq_enter(void)
  * rcu_irq_exit - Called from exiting Hard irq context.
  *
  * If the CPU was idle with dynamic ticks active, update the
- * dynticks_progress_counter to put let the RCU handling be
+ * rcu_dyntick_sched.dynticks to put let the RCU handling be
  * aware that the CPU is going back to idle with no ticks.
  */
 void rcu_irq_exit(void)
 {
         int cpu = smp_processor_id();
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
 
         /*
          * rcu_update_flag is set if we interrupted the CPU
@@ -503,7 +529,7 @@ void rcu_irq_exit(void)
          * Once this occurs, we keep track of interrupt nesting
          * because a NMI/SMI could also come in, and we still
          * only want the IRQ that started the increment of the
-         * dynticks_progress_counter to be the one that modifies
+         * rcu_dyntick_sched.dynticks to be the one that modifies
          * it on exit.
          */
         if (per_cpu(rcu_update_flag, cpu)) {
@@ -515,28 +541,29 @@ void rcu_irq_exit(void)
 
                 /*
                  * If an NMI/SMI happens now we are still
-                 * protected by the dynticks_progress_counter being odd.
+                 * protected by the rcu_dyntick_sched.dynticks being odd.
                  */
 
                 /*
                  * The following memory barrier ensures that any
                  * rcu_read_unlock() primitives in the irq handler
                  * are seen by other CPUs to preceed the following
-                 * increment to dynticks_progress_counter. This
+                 * increment to rcu_dyntick_sched.dynticks. This
                  * is required in order for other CPUs to determine
                  * when it is safe to advance the RCU grace-period
                  * state machine.
                  */
                 smp_mb(); /* see above block comment. */
-                per_cpu(dynticks_progress_counter, cpu)++;
-                WARN_ON(per_cpu(dynticks_progress_counter, cpu) & 0x1);
+                rdssp->dynticks++;
+                WARN_ON(rdssp->dynticks & 0x1);
         }
 }
 
 static void dyntick_save_progress_counter(int cpu)
 {
-        per_cpu(rcu_dyntick_snapshot, cpu) =
-                per_cpu(dynticks_progress_counter, cpu);
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
+
+        rdssp->dynticks_snap = rdssp->dynticks;
 }
 
 static inline int
@@ -544,9 +571,10 @@ rcu_try_flip_waitack_needed(int cpu)
 {
         long curr;
         long snap;
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
 
-        curr = per_cpu(dynticks_progress_counter, cpu);
-        snap = per_cpu(rcu_dyntick_snapshot, cpu);
+        curr = rdssp->dynticks;
+        snap = rdssp->dynticks_snap;
         smp_mb(); /* force ordering with cpu entering/leaving dynticks. */
 
         /*
@@ -567,7 +595,7 @@ rcu_try_flip_waitack_needed(int cpu)
          * that this CPU already acknowledged the counter.
          */
 
-        if ((curr - snap) > 2 || (snap & 0x1) == 0)
+        if ((curr - snap) > 2 || (curr & 0x1) == 0)
                 return 0;
 
         /* We need this CPU to explicitly acknowledge the counter flip. */
@@ -580,9 +608,10 @@ rcu_try_flip_waitmb_needed(int cpu)
 {
         long curr;
         long snap;
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
 
-        curr = per_cpu(dynticks_progress_counter, cpu);
-        snap = per_cpu(rcu_dyntick_snapshot, cpu);
+        curr = rdssp->dynticks;
+        snap = rdssp->dynticks_snap;
         smp_mb(); /* force ordering with cpu entering/leaving dynticks. */
 
         /*
@@ -609,14 +638,86 @@ rcu_try_flip_waitmb_needed(int cpu)
         return 1;
 }
 
+static void dyntick_save_progress_counter_sched(int cpu)
+{
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
+
+        rdssp->sched_dynticks_snap = rdssp->dynticks;
+}
+
+static int rcu_qsctr_inc_needed_dyntick(int cpu)
+{
+        long curr;
+        long snap;
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
+
+        curr = rdssp->dynticks;
+        snap = rdssp->sched_dynticks_snap;
+        smp_mb(); /* force ordering with cpu entering/leaving dynticks. */
+
+        /*
+         * If the CPU remained in dynticks mode for the entire time
+         * and didn't take any interrupts, NMIs, SMIs, or whatever,
+         * then it cannot be in the middle of an rcu_read_lock(), so
+         * the next rcu_read_lock() it executes must use the new value
+         * of the counter.  Therefore, this CPU has been in a quiescent
+         * state the entire time, and we don't need to wait for it.
+         */
+
+        if ((curr == snap) && ((curr & 0x1) == 0))
+                return 0;
+
+        /*
+         * If the CPU passed through or entered a dynticks idle phase with
+         * no active irq handlers, then, as above, this CPU has already
+         * passed through a quiescent state.
+         */
+
+        if ((curr - snap) > 2 || (snap & 0x1) == 0)
+                return 0;
+
+        /* We need this CPU to go through a quiescent state. */
+
+        return 1;
+}
+
 #else /* !CONFIG_NO_HZ */
 
-# define dyntick_save_progress_counter(cpu)     do { } while (0)
-# define rcu_try_flip_waitack_needed(cpu)       (1)
-# define rcu_try_flip_waitmb_needed(cpu)        (1)
+# define dyntick_save_progress_counter(cpu)             do { } while (0)
+# define rcu_try_flip_waitack_needed(cpu)               (1)
+# define rcu_try_flip_waitmb_needed(cpu)                (1)
+
+# define dyntick_save_progress_counter_sched(cpu)       do { } while (0)
+# define rcu_qsctr_inc_needed_dyntick(cpu)              (1)
 
 #endif /* CONFIG_NO_HZ */
 
+static void save_qsctr_sched(int cpu)
+{
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
+
+        rdssp->sched_qs_snap = rdssp->sched_qs;
+}
+
+static inline int rcu_qsctr_inc_needed(int cpu)
+{
+        struct rcu_dyntick_sched *rdssp = &per_cpu(rcu_dyntick_sched, cpu);
+
+        /*
+         * If there has been a quiescent state, no more need to wait
+         * on this CPU.
+         */
+
+        if (rdssp->sched_qs != rdssp->sched_qs_snap) {
+                smp_mb(); /* force ordering with cpu entering schedule(). */
+                return 0;
+        }
+
+        /* We need this CPU to go through a quiescent state. */
+
+        return 1;
+}
+
 /*
  * Get here when RCU is idle.  Decide whether we need to
  * move out of idle state, and return non-zero if so.
@@ -819,6 +920,26 @@ void rcu_check_callbacks(int cpu, int user)
         unsigned long flags;
         struct rcu_data *rdp = RCU_DATA_CPU(cpu);
 
+        /*
+         * If this CPU took its interrupt from user mode or from the
+         * idle loop, and this is not a nested interrupt, then
+         * this CPU has to have exited all prior preept-disable
+         * sections of code.  So increment the counter to note this.
+         *
+         * The memory barrier is needed to handle the case where
+         * writes from a preempt-disable section of code get reordered
+         * into schedule() by this CPU's write buffer.  So the memory
+         * barrier makes sure that the rcu_qsctr_inc() is seen by other
+         * CPUs to happen after any such write.
+         */
+
+        if (user ||
+            (idle_cpu(cpu) && !in_softirq() &&
+             hardirq_count() <= (1 << HARDIRQ_SHIFT))) {
+                smp_mb();       /* Guard against aggressive schedule(). */
+                rcu_qsctr_inc(cpu);
+        }
+
         rcu_check_mb(cpu);
         if (rcu_ctrlblk.completed == rdp->completed)
                 rcu_try_flip();
@@ -869,6 +990,8 @@ void rcu_offline_cpu(int cpu)
         struct rcu_head *list = NULL;
         unsigned long flags;
         struct rcu_data *rdp = RCU_DATA_CPU(cpu);
+        struct rcu_head *schedlist = NULL;
+        struct rcu_head **schedtail = &schedlist;
         struct rcu_head **tail = &list;
 
         /*
@@ -882,6 +1005,11 @@ void rcu_offline_cpu(int cpu)
                 rcu_offline_cpu_enqueue(rdp->waitlist[i], rdp->waittail[i],
                                                 list, tail);
         rcu_offline_cpu_enqueue(rdp->nextlist, rdp->nexttail, list, tail);
+        rcu_offline_cpu_enqueue(rdp->waitschedlist, rdp->waitschedtail,
+                                schedlist, schedtail);
+        rcu_offline_cpu_enqueue(rdp->nextschedlist, rdp->nextschedtail,
+                                schedlist, schedtail);
+        rdp->rcu_sched_sleeping = 0;
         spin_unlock_irqrestore(&rdp->lock, flags);
         rdp->waitlistcount = 0;
 
@@ -916,12 +1044,15 @@ void rcu_offline_cpu(int cpu)
          * fix.
          */
 
-        local_irq_save(flags);
+        local_irq_save(flags);  /* disable preempt till we know what lock. */
         rdp = RCU_DATA_ME();
         spin_lock(&rdp->lock);
         *rdp->nexttail = list;
         if (list)
                 rdp->nexttail = tail;
+        *rdp->nextschedtail = schedlist;
+        if (schedlist)
+                rdp->nextschedtail = schedtail;
         spin_unlock_irqrestore(&rdp->lock, flags);
 }
 
@@ -936,10 +1067,25 @@ void rcu_offline_cpu(int cpu)
 void __cpuinit rcu_online_cpu(int cpu)
 {
         unsigned long flags;
+        struct rcu_data *rdp;
 
         spin_lock_irqsave(&rcu_ctrlblk.fliplock, flags);
         cpu_set(cpu, rcu_cpu_online_map);
         spin_unlock_irqrestore(&rcu_ctrlblk.fliplock, flags);
+
+        /*
+         * The rcu_sched grace-period processing might have bypassed
+         * this CPU, given that it was not in the rcu_cpu_online_map
+         * when the grace-period scan started.  This means that the
+         * grace-period task might sleep.  So make sure that if this
+         * should happen, the first callback posted to this CPU will
+         * wake up the grace-period task if need be.
+         */
+
+        rdp = RCU_DATA_CPU(cpu);
+        spin_lock_irqsave(&rdp->lock, flags);
+        rdp->rcu_sched_sleeping = 1;
+        spin_unlock_irqrestore(&rdp->lock, flags);
 }
 
 static void rcu_process_callbacks(struct softirq_action *unused)
@@ -982,31 +1128,196 @@ void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
         *rdp->nexttail = head;
         rdp->nexttail = &head->next;
         RCU_TRACE_RDP(rcupreempt_trace_next_add, rdp);
-        spin_unlock(&rdp->lock);
-        local_irq_restore(flags);
+        spin_unlock_irqrestore(&rdp->lock, flags);
 }
 EXPORT_SYMBOL_GPL(call_rcu);
 
+void call_rcu_sched(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
+{
+        unsigned long flags;
+        struct rcu_data *rdp;
+        int wake_gp = 0;
+
+        head->func = func;
+        head->next = NULL;
+        local_irq_save(flags);
+        rdp = RCU_DATA_ME();
+        spin_lock(&rdp->lock);
+        *rdp->nextschedtail = head;
+        rdp->nextschedtail = &head->next;
+        if (rdp->rcu_sched_sleeping) {
+
+                /* Grace-period processing might be sleeping... */
+
+                rdp->rcu_sched_sleeping = 0;
+                wake_gp = 1;
+        }
+        spin_unlock_irqrestore(&rdp->lock, flags);
+        if (wake_gp) {
+
+                /* Wake up grace-period processing, unless someone beat us. */
+
+                spin_lock_irqsave(&rcu_ctrlblk.schedlock, flags);
+                if (rcu_ctrlblk.sched_sleep != rcu_sched_sleeping)
+                        wake_gp = 0;
+                rcu_ctrlblk.sched_sleep = rcu_sched_not_sleeping;
+                spin_unlock_irqrestore(&rcu_ctrlblk.schedlock, flags);
+                if (wake_gp)
+                        wake_up_interruptible(&rcu_ctrlblk.sched_wq);
+        }
+}
+EXPORT_SYMBOL_GPL(call_rcu_sched);
+
 /*
  * Wait until all currently running preempt_disable() code segments
  * (including hardware-irq-disable segments) complete.  Note that
  * in -rt this does -not- necessarily result in all currently executing
  * interrupt -handlers- having completed.
  */
-void __synchronize_sched(void)
+synchronize_rcu_xxx(__synchronize_sched, call_rcu_sched)
+EXPORT_SYMBOL_GPL(__synchronize_sched);
+
+/*
+ * kthread function that manages call_rcu_sched grace periods.
+ */
+static int rcu_sched_grace_period(void *arg)
 {
-        cpumask_t oldmask;
+        int couldsleep;         /* might sleep after current pass. */
+        int couldsleepnext = 0; /* might sleep after next pass. */
         int cpu;
+        unsigned long flags;
+        struct rcu_data *rdp;
+        int ret;
 
-        if (sched_getaffinity(0, &oldmask) < 0)
-                oldmask = cpu_possible_map;
-        for_each_online_cpu(cpu) {
-                sched_setaffinity(0, &cpumask_of_cpu(cpu));
-                schedule();
-        }
-        sched_setaffinity(0, &oldmask);
+        /*
+         * Each pass through the following loop handles one
+         * rcu_sched grace period cycle.
+         */
+        do {
+                /* Save each CPU's current state. */
+
+                for_each_online_cpu(cpu) {
+                        dyntick_save_progress_counter_sched(cpu);
+                        save_qsctr_sched(cpu);
+                }
+
+                /*
+                 * Sleep for about an RCU grace-period's worth to
+                 * allow better batching and to consume less CPU.
+                 */
+                schedule_timeout_interruptible(RCU_SCHED_BATCH_TIME);
+
+                /*
+                 * If there was nothing to do last time, prepare to
+                 * sleep at the end of the current grace period cycle.
+                 */
+                couldsleep = couldsleepnext;
+                couldsleepnext = 1;
+                if (couldsleep) {
+                        spin_lock_irqsave(&rcu_ctrlblk.schedlock, flags);
+                        rcu_ctrlblk.sched_sleep = rcu_sched_sleep_prep;
+                        spin_unlock_irqrestore(&rcu_ctrlblk.schedlock, flags);
+                }
+
+                /*
+                 * Wait on each CPU in turn to have either visited
+                 * a quiescent state or been in dynticks-idle mode.
+                 */
+                for_each_online_cpu(cpu) {
+                        while (rcu_qsctr_inc_needed(cpu) &&
+                               rcu_qsctr_inc_needed_dyntick(cpu)) {
+                                /* resched_cpu(cpu); @@@ */
+                                schedule_timeout_interruptible(1);
+                        }
+                }
+
+                /* Advance callbacks for each CPU.  */
+
+                for_each_online_cpu(cpu) {
+
+                        rdp = RCU_DATA_CPU(cpu);
+                        spin_lock_irqsave(&rdp->lock, flags);
+
+                        /*
+                         * We are running on this CPU irq-disabled, so no
+                         * CPU can go offline until we re-enable irqs.
+                         * The current CPU might have already gone
+                         * offline (between the for_each_offline_cpu and
+                         * the spin_lock_irqsave), but in that case all its
+                         * callback lists will be empty, so no harm done.
+                         *
+                         * Advance the callbacks!  We share normal RCU's
+                         * donelist, since callbacks are invoked the
+                         * same way in either case.
+                         */
+                        if (rdp->waitschedlist != NULL) {
+                                *rdp->donetail = rdp->waitschedlist;
+                                rdp->donetail = rdp->waitschedtail;
+
+                                /*
+                                 * Next rcu_check_callbacks() will
+                                 * do the required raise_softirq().
+                                 */
+                        }
+                        if (rdp->nextschedlist != NULL) {
+                                rdp->waitschedlist = rdp->nextschedlist;
+                                rdp->waitschedtail = rdp->nextschedtail;
+                                couldsleep = 0;
+                                couldsleepnext = 0;
+                        } else {
+                                rdp->waitschedlist = NULL;
+                                rdp->waitschedtail = &rdp->waitschedlist;
+                        }
+                        rdp->nextschedlist = NULL;
+                        rdp->nextschedtail = &rdp->nextschedlist;
+
+                        /* Mark sleep intention. */
+
+                        rdp->rcu_sched_sleeping = couldsleep;
+
+                        spin_unlock_irqrestore(&rdp->lock, flags);
+                }
+
+                /* If we saw callbacks on the last scan, go deal with them. */
+
+                if (!couldsleep)
+                        continue;
+
+                /* Attempt to block... */
+
+                spin_lock_irqsave(&rcu_ctrlblk.schedlock, flags);
+                if (rcu_ctrlblk.sched_sleep != rcu_sched_sleep_prep) {
+
+                        /*
+                         * Someone posted a callback after we scanned.
+                         * Go take care of it.
+                         */
+                        spin_unlock_irqrestore(&rcu_ctrlblk.schedlock, flags);
+                        couldsleepnext = 0;
+                        continue;
+                }
+
+                /* Block until the next person posts a callback. */
+
+                rcu_ctrlblk.sched_sleep = rcu_sched_sleeping;
+                spin_unlock_irqrestore(&rcu_ctrlblk.schedlock, flags);
+                ret = 0;
+                __wait_event_interruptible(rcu_ctrlblk.sched_wq,
+                        rcu_ctrlblk.sched_sleep != rcu_sched_sleeping,
+                        ret);
+
+                /*
+                 * Signals would prevent us from sleeping, and we cannot
+                 * do much with them in any case.  So flush them.
+                 */
+                if (ret)
+                        flush_signals(current);
+                couldsleepnext = 0;
+
+        } while (!kthread_should_stop());
+
+        return (0);
 }
-EXPORT_SYMBOL_GPL(__synchronize_sched);
 
 /*
  * Check to see if any future RCU-related work will need to be done
@@ -1023,7 +1334,9 @@ int rcu_needs_cpu(int cpu)
 
         return (rdp->donelist != NULL ||
                 !!rdp->waitlistcount ||
-                rdp->nextlist != NULL);
+                rdp->nextlist != NULL ||
+                rdp->nextschedlist != NULL ||
+                rdp->waitschedlist != NULL);
 }
 
 int rcu_pending(int cpu)
@@ -1034,7 +1347,9 @@ int rcu_pending(int cpu)
 
         if (rdp->donelist != NULL ||
             !!rdp->waitlistcount ||
-            rdp->nextlist != NULL)
+            rdp->nextlist != NULL ||
+            rdp->nextschedlist != NULL ||
+            rdp->waitschedlist != NULL)
                 return 1;
 
         /* The RCU core needs an acknowledgement from this CPU. */
@@ -1101,6 +1416,11 @@ void __init __rcu_init(void)
                 rdp->donetail = &rdp->donelist;
                 rdp->rcu_flipctr[0] = 0;
                 rdp->rcu_flipctr[1] = 0;
+                rdp->nextschedlist = NULL;
+                rdp->nextschedtail = &rdp->nextschedlist;
+                rdp->waitschedlist = NULL;
+                rdp->waitschedtail = &rdp->waitschedlist;
+                rdp->rcu_sched_sleeping = 0;
         }
         register_cpu_notifier(&rcu_nb);
 
@@ -1123,11 +1443,15 @@ void __init __rcu_init(void)
 }
 
 /*
- * Deprecated, use synchronize_rcu() or synchronize_sched() instead.
+ * Late-boot-time RCU initialization that must wait until after scheduler
+ * has been initialized.
  */
-void synchronize_kernel(void)
+void __init rcu_init_sched(void)
 {
-        synchronize_rcu();
+        rcu_sched_grace_period_task = kthread_run(rcu_sched_grace_period,
+                                                  NULL,
+                                                  "rcu_sched_grace_period");
+        WARN_ON(IS_ERR(rcu_sched_grace_period_task));
 }
 
 #ifdef CONFIG_RCU_TRACE
diff --git a/kernel/rcupreempt_trace.c b/kernel/rcupreempt_trace.c
index 49ac4947af2..5edf82c34bb 100644
--- a/kernel/rcupreempt_trace.c
+++ b/kernel/rcupreempt_trace.c
@@ -38,7 +38,6 @@
 #include <linux/moduleparam.h>
 #include <linux/percpu.h>
 #include <linux/notifier.h>
-#include <linux/rcupdate.h>
 #include <linux/cpu.h>
 #include <linux/mutex.h>
 #include <linux/rcupreempt_trace.h>
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 33acc424667..90b5b123f7a 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -57,7 +57,9 @@ static int stat_interval;	/* Interval between stats, in seconds. */
                                 /*  Defaults to "only at end of test". */
 static int verbose;             /* Print more debug info. */
 static int test_no_idle_hz;     /* Test RCU's support for tickless idle CPUs. */
-static int shuffle_interval = 5; /* Interval between shuffles (in sec)*/
+static int shuffle_interval = 3; /* Interval between shuffles (in sec)*/
+static int stutter = 5;         /* Start/stop testing interval (in sec) */
+static int irqreader = 1;       /* RCU readers from irq (timers). */
 static char *torture_type = "rcu"; /* What RCU implementation to torture. */
 
 module_param(nreaders, int, 0444);
@@ -72,6 +74,10 @@ module_param(test_no_idle_hz, bool, 0444);
 MODULE_PARM_DESC(test_no_idle_hz, "Test support for tickless idle CPUs");
 module_param(shuffle_interval, int, 0444);
 MODULE_PARM_DESC(shuffle_interval, "Number of seconds between shuffles");
+module_param(stutter, int, 0444);
+MODULE_PARM_DESC(stutter, "Number of seconds to run/halt test");
+module_param(irqreader, int, 0444);
+MODULE_PARM_DESC(irqreader, "Allow RCU readers from irq handlers");
 module_param(torture_type, charp, 0444);
 MODULE_PARM_DESC(torture_type, "Type of RCU to torture (rcu, rcu_bh, srcu)");
 
@@ -91,6 +97,7 @@ static struct task_struct **fakewriter_tasks;
 static struct task_struct **reader_tasks;
 static struct task_struct *stats_task;
 static struct task_struct *shuffler_task;
+static struct task_struct *stutter_task;
 
 #define RCU_TORTURE_PIPE_LEN 10
 
@@ -117,8 +124,18 @@ static atomic_t n_rcu_torture_alloc_fail;
 static atomic_t n_rcu_torture_free;
 static atomic_t n_rcu_torture_mberror;
 static atomic_t n_rcu_torture_error;
+static long n_rcu_torture_timers = 0;
 static struct list_head rcu_torture_removed;
 
+static int stutter_pause_test = 0;
+
+#if defined(MODULE) || defined(CONFIG_RCU_TORTURE_TEST_RUNNABLE)
+#define RCUTORTURE_RUNNABLE_INIT 1
+#else
+#define RCUTORTURE_RUNNABLE_INIT 0
+#endif
+int rcutorture_runnable = RCUTORTURE_RUNNABLE_INIT;
+
 /*
  * Allocate an element from the rcu_tortures pool.
  */
@@ -179,6 +196,16 @@ rcu_random(struct rcu_random_state *rrsp)
         return swahw32(rrsp->rrs_state);
 }
 
+static void
+rcu_stutter_wait(void)
+{
+        while (stutter_pause_test || !rcutorture_runnable)
+                if (rcutorture_runnable)
+                        schedule_timeout_interruptible(1);
+                else
+                        schedule_timeout_interruptible(round_jiffies_relative(HZ));
+}
+
 /*
  * Operations vector for selecting different types of tests.
  */
@@ -192,7 +219,9 @@ struct rcu_torture_ops {
         int (*completed)(void);
         void (*deferredfree)(struct rcu_torture *p);
         void (*sync)(void);
+        void (*cb_barrier)(void);
         int (*stats)(char *page);
+        int irqcapable;
         char *name;
 };
 static struct rcu_torture_ops *cur_ops = NULL;
@@ -265,7 +294,9 @@ static struct rcu_torture_ops rcu_ops = {
         .completed = rcu_torture_completed,
         .deferredfree = rcu_torture_deferred_free,
         .sync = synchronize_rcu,
+        .cb_barrier = rcu_barrier,
         .stats = NULL,
+        .irqcapable = 1,
         .name = "rcu"
 };
 
@@ -304,7 +335,9 @@ static struct rcu_torture_ops rcu_sync_ops = {
         .completed = rcu_torture_completed,
         .deferredfree = rcu_sync_torture_deferred_free,
         .sync = synchronize_rcu,
+        .cb_barrier = NULL,
         .stats = NULL,
+        .irqcapable = 1,
         .name = "rcu_sync"
 };
 
@@ -364,7 +397,9 @@ static struct rcu_torture_ops rcu_bh_ops = {
         .completed = rcu_bh_torture_completed,
         .deferredfree = rcu_bh_torture_deferred_free,
         .sync = rcu_bh_torture_synchronize,
+        .cb_barrier = rcu_barrier_bh,
         .stats = NULL,
+        .irqcapable = 1,
         .name = "rcu_bh"
 };
 
@@ -377,7 +412,9 @@ static struct rcu_torture_ops rcu_bh_sync_ops = {
         .completed = rcu_bh_torture_completed,
         .deferredfree = rcu_sync_torture_deferred_free,
         .sync = rcu_bh_torture_synchronize,
+        .cb_barrier = NULL,
         .stats = NULL,
+        .irqcapable = 1,
         .name = "rcu_bh_sync"
 };
 
@@ -458,6 +495,7 @@ static struct rcu_torture_ops srcu_ops = {
         .completed = srcu_torture_completed,
         .deferredfree = rcu_sync_torture_deferred_free,
         .sync = srcu_torture_synchronize,
+        .cb_barrier = NULL,
         .stats = srcu_torture_stats,
         .name = "srcu"
 };
@@ -482,6 +520,11 @@ static int sched_torture_completed(void)
         return 0;
 }
 
+static void rcu_sched_torture_deferred_free(struct rcu_torture *p)
+{
+        call_rcu_sched(&p->rtort_rcu, rcu_torture_cb);
+}
+
 static void sched_torture_synchronize(void)
 {
         synchronize_sched();
@@ -494,12 +537,28 @@ static struct rcu_torture_ops sched_ops = {
         .readdelay = rcu_read_delay,  /* just reuse rcu's version. */
         .readunlock = sched_torture_read_unlock,
         .completed = sched_torture_completed,
-        .deferredfree = rcu_sync_torture_deferred_free,
+        .deferredfree = rcu_sched_torture_deferred_free,
         .sync = sched_torture_synchronize,
+        .cb_barrier = rcu_barrier_sched,
         .stats = NULL,
+        .irqcapable = 1,
         .name = "sched"
 };
 
+static struct rcu_torture_ops sched_ops_sync = {
+        .init = rcu_sync_torture_init,
+        .cleanup = NULL,
+        .readlock = sched_torture_read_lock,
+        .readdelay = rcu_read_delay,  /* just reuse rcu's version. */
+        .readunlock = sched_torture_read_unlock,
+        .completed = sched_torture_completed,
+        .deferredfree = rcu_sync_torture_deferred_free,
+        .sync = sched_torture_synchronize,
+        .cb_barrier = NULL,
+        .stats = NULL,
+        .name = "sched_sync"
+};
+
 /*
  * RCU torture writer kthread.  Repeatedly substitutes a new structure
  * for that pointed to by rcu_torture_current, freeing the old structure
@@ -537,6 +596,7 @@ rcu_torture_writer(void *arg)
                 }
                 rcu_torture_current_version++;
                 oldbatch = cur_ops->completed();
+                rcu_stutter_wait();
         } while (!kthread_should_stop() && !fullstop);
         VERBOSE_PRINTK_STRING("rcu_torture_writer task stopping");
         while (!kthread_should_stop())
@@ -560,6 +620,7 @@ rcu_torture_fakewriter(void *arg)
                 schedule_timeout_uninterruptible(1 + rcu_random(&rand)%10);
                 udelay(rcu_random(&rand) & 0x3ff);
                 cur_ops->sync();
+                rcu_stutter_wait();
         } while (!kthread_should_stop() && !fullstop);
 
         VERBOSE_PRINTK_STRING("rcu_torture_fakewriter task stopping");
@@ -569,6 +630,52 @@ rcu_torture_fakewriter(void *arg)
 }
 
 /*
+ * RCU torture reader from timer handler.  Dereferences rcu_torture_current,
+ * incrementing the corresponding element of the pipeline array.  The
+ * counter in the element should never be greater than 1, otherwise, the
+ * RCU implementation is broken.
+ */
+static void rcu_torture_timer(unsigned long unused)
+{
+        int idx;
+        int completed;
+        static DEFINE_RCU_RANDOM(rand);
+        static DEFINE_SPINLOCK(rand_lock);
+        struct rcu_torture *p;
+        int pipe_count;
+
+        idx = cur_ops->readlock();
+        completed = cur_ops->completed();
+        p = rcu_dereference(rcu_torture_current);
+        if (p == NULL) {
+                /* Leave because rcu_torture_writer is not yet underway */
+                cur_ops->readunlock(idx);
+                return;
+        }
+        if (p->rtort_mbtest == 0)
+                atomic_inc(&n_rcu_torture_mberror);
+        spin_lock(&rand_lock);
+        cur_ops->readdelay(&rand);
+        n_rcu_torture_timers++;
+        spin_unlock(&rand_lock);
+        preempt_disable();
+        pipe_count = p->rtort_pipe_count;
+        if (pipe_count > RCU_TORTURE_PIPE_LEN) {
+                /* Should not happen, but... */
+                pipe_count = RCU_TORTURE_PIPE_LEN;
+        }
+        ++__get_cpu_var(rcu_torture_count)[pipe_count];
+        completed = cur_ops->completed() - completed;
+        if (completed > RCU_TORTURE_PIPE_LEN) {
+                /* Should not happen, but... */
+                completed = RCU_TORTURE_PIPE_LEN;
+        }
+        ++__get_cpu_var(rcu_torture_batch)[completed];
+        preempt_enable();
+        cur_ops->readunlock(idx);
+}
+
+/*
  * RCU torture reader kthread.  Repeatedly dereferences rcu_torture_current,
  * incrementing the corresponding element of the pipeline array.  The
  * counter in the element should never be greater than 1, otherwise, the
@@ -582,11 +689,18 @@ rcu_torture_reader(void *arg)
         DEFINE_RCU_RANDOM(rand);
         struct rcu_torture *p;
         int pipe_count;
+        struct timer_list t;
 
         VERBOSE_PRINTK_STRING("rcu_torture_reader task started");
         set_user_nice(current, 19);
+        if (irqreader && cur_ops->irqcapable)
+                setup_timer_on_stack(&t, rcu_torture_timer, 0);
 
         do {
+                if (irqreader && cur_ops->irqcapable) {
+                        if (!timer_pending(&t))
+                                mod_timer(&t, 1);
+                }
                 idx = cur_ops->readlock();
                 completed = cur_ops->completed();
                 p = rcu_dereference(rcu_torture_current);
@@ -615,8 +729,11 @@ rcu_torture_reader(void *arg)
                 preempt_enable();
                 cur_ops->readunlock(idx);
                 schedule();
+                rcu_stutter_wait();
         } while (!kthread_should_stop() && !fullstop);
         VERBOSE_PRINTK_STRING("rcu_torture_reader task stopping");
+        if (irqreader && cur_ops->irqcapable)
+                del_timer_sync(&t);
         while (!kthread_should_stop())
                 schedule_timeout_uninterruptible(1);
         return 0;
@@ -647,20 +764,22 @@ rcu_torture_printk(char *page)
         cnt += sprintf(&page[cnt], "%s%s ", torture_type, TORTURE_FLAG);
         cnt += sprintf(&page[cnt],
                        "rtc: %p ver: %ld tfle: %d rta: %d rtaf: %d rtf: %d "
-                       "rtmbe: %d",
+                       "rtmbe: %d nt: %ld",
                        rcu_torture_current,
                        rcu_torture_current_version,
                        list_empty(&rcu_torture_freelist),
                        atomic_read(&n_rcu_torture_alloc),
                        atomic_read(&n_rcu_torture_alloc_fail),
                        atomic_read(&n_rcu_torture_free),
-                       atomic_read(&n_rcu_torture_mberror));
+                       atomic_read(&n_rcu_torture_mberror),
+                       n_rcu_torture_timers);
         if (atomic_read(&n_rcu_torture_mberror) != 0)
                 cnt += sprintf(&page[cnt], " !!!");
         cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
         if (i > 1) {
                 cnt += sprintf(&page[cnt], "!!! ");
                 atomic_inc(&n_rcu_torture_error);
+                WARN_ON_ONCE(1);
         }
         cnt += sprintf(&page[cnt], "Reader Pipe: ");
         for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
@@ -785,15 +904,34 @@ rcu_torture_shuffle(void *arg)
         return 0;
 }
 
+/* Cause the rcutorture test to "stutter", starting and stopping all
+ * threads periodically.
+ */
+static int
+rcu_torture_stutter(void *arg)
+{
+        VERBOSE_PRINTK_STRING("rcu_torture_stutter task started");
+        do {
+                schedule_timeout_interruptible(stutter * HZ);
+                stutter_pause_test = 1;
+                if (!kthread_should_stop())
+                        schedule_timeout_interruptible(stutter * HZ);
+                stutter_pause_test = 0;
+        } while (!kthread_should_stop());
+        VERBOSE_PRINTK_STRING("rcu_torture_stutter task stopping");
+        return 0;
+}
+
 static inline void
 rcu_torture_print_module_parms(char *tag)
 {
         printk(KERN_ALERT "%s" TORTURE_FLAG
                 "--- %s: nreaders=%d nfakewriters=%d "
                 "stat_interval=%d verbose=%d test_no_idle_hz=%d "
-                "shuffle_interval = %d\n",
+                "shuffle_interval=%d stutter=%d irqreader=%d\n",
                 torture_type, tag, nrealreaders, nfakewriters,
-                stat_interval, verbose, test_no_idle_hz, shuffle_interval);
+                stat_interval, verbose, test_no_idle_hz, shuffle_interval,
+                stutter, irqreader);
 }
 
 static void
@@ -802,6 +940,11 @@ rcu_torture_cleanup(void)
         int i;
 
         fullstop = 1;
+        if (stutter_task) {
+                VERBOSE_PRINTK_STRING("Stopping rcu_torture_stutter task");
+                kthread_stop(stutter_task);
+        }
+        stutter_task = NULL;
         if (shuffler_task) {
                 VERBOSE_PRINTK_STRING("Stopping rcu_torture_shuffle task");
                 kthread_stop(shuffler_task);
@@ -848,7 +991,9 @@ rcu_torture_cleanup(void)
         stats_task = NULL;
 
         /* Wait for all RCU callbacks to fire.  */
-        rcu_barrier();
+
+        if (cur_ops->cb_barrier != NULL)
+                cur_ops->cb_barrier();
 
         rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
 
@@ -868,7 +1013,7 @@ rcu_torture_init(void)
         int firsterr = 0;
         static struct rcu_torture_ops *torture_ops[] =
                 { &rcu_ops, &rcu_sync_ops, &rcu_bh_ops, &rcu_bh_sync_ops,
-                  &srcu_ops, &sched_ops, };
+                  &srcu_ops, &sched_ops, &sched_ops_sync, };
 
         /* Process args and tell the world that the torturer is on the job. */
         for (i = 0; i < ARRAY_SIZE(torture_ops); i++) {
@@ -988,6 +1133,19 @@ rcu_torture_init(void)
                         goto unwind;
                 }
         }
+        if (stutter < 0)
+                stutter = 0;
+        if (stutter) {
+                /* Create the stutter thread */
+                stutter_task = kthread_run(rcu_torture_stutter, NULL,
+                                          "rcu_torture_stutter");
+                if (IS_ERR(stutter_task)) {
+                        firsterr = PTR_ERR(stutter_task);
+                        VERBOSE_PRINTK_ERRSTRING("Failed to create stutter");
+                        stutter_task = NULL;
+                        goto unwind;
+                }
+        }
         return 0;
 
 unwind:
diff --git a/kernel/smp.c b/kernel/smp.c
new file mode 100644
index 00000000000..462c785ca1e
--- /dev/null
+++ b/kernel/smp.c
@@ -0,0 +1,383 @@
+/*
+ * Generic helpers for smp ipi calls
+ *
+ * (C) Jens Axboe <jens.axboe@oracle.com> 2008
+ *
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/percpu.h>
+#include <linux/rcupdate.h>
+#include <linux/rculist.h>
+#include <linux/smp.h>
+
+static DEFINE_PER_CPU(struct call_single_queue, call_single_queue);
+static LIST_HEAD(call_function_queue);
+__cacheline_aligned_in_smp DEFINE_SPINLOCK(call_function_lock);
+
+enum {
+        CSD_FLAG_WAIT           = 0x01,
+        CSD_FLAG_ALLOC          = 0x02,
+};
+
+struct call_function_data {
+        struct call_single_data csd;
+        spinlock_t lock;
+        unsigned int refs;
+        cpumask_t cpumask;
+        struct rcu_head rcu_head;
+};
+
+struct call_single_queue {
+        struct list_head list;
+        spinlock_t lock;
+};
+
+void __cpuinit init_call_single_data(void)
+{
+        int i;
+
+        for_each_possible_cpu(i) {
+                struct call_single_queue *q = &per_cpu(call_single_queue, i);
+
+                spin_lock_init(&q->lock);
+                INIT_LIST_HEAD(&q->list);
+        }
+}
+
+static void csd_flag_wait(struct call_single_data *data)
+{
+        /* Wait for response */
+        do {
+                /*
+                 * We need to see the flags store in the IPI handler
+                 */
+                smp_mb();
+                if (!(data->flags & CSD_FLAG_WAIT))
+                        break;
+                cpu_relax();
+        } while (1);
+}
+
+/*
+ * Insert a previously allocated call_single_data element for execution
+ * on the given CPU. data must already have ->func, ->info, and ->flags set.
+ */
+static void generic_exec_single(int cpu, struct call_single_data *data)
+{
+        struct call_single_queue *dst = &per_cpu(call_single_queue, cpu);
+        int wait = data->flags & CSD_FLAG_WAIT, ipi;
+        unsigned long flags;
+
+        spin_lock_irqsave(&dst->lock, flags);
+        ipi = list_empty(&dst->list);
+        list_add_tail(&data->list, &dst->list);
+        spin_unlock_irqrestore(&dst->lock, flags);
+
+        if (ipi)
+                arch_send_call_function_single_ipi(cpu);
+
+        if (wait)
+                csd_flag_wait(data);
+}
+
+static void rcu_free_call_data(struct rcu_head *head)
+{
+        struct call_function_data *data;
+
+        data = container_of(head, struct call_function_data, rcu_head);
+
+        kfree(data);
+}
+
+/*
+ * Invoked by arch to handle an IPI for call function. Must be called with
+ * interrupts disabled.
+ */
+void generic_smp_call_function_interrupt(void)
+{
+        struct call_function_data *data;
+        int cpu = get_cpu();
+
+        /*
+         * It's ok to use list_for_each_rcu() here even though we may delete
+         * 'pos', since list_del_rcu() doesn't clear ->next
+         */
+        rcu_read_lock();
+        list_for_each_entry_rcu(data, &call_function_queue, csd.list) {
+                int refs;
+
+                if (!cpu_isset(cpu, data->cpumask))
+                        continue;
+
+                data->csd.func(data->csd.info);
+
+                spin_lock(&data->lock);
+                cpu_clear(cpu, data->cpumask);
+                WARN_ON(data->refs == 0);
+                data->refs--;
+                refs = data->refs;
+                spin_unlock(&data->lock);
+
+                if (refs)
+                        continue;
+
+                spin_lock(&call_function_lock);
+                list_del_rcu(&data->csd.list);
+                spin_unlock(&call_function_lock);
+
+                if (data->csd.flags & CSD_FLAG_WAIT) {
+                        /*
+                         * serialize stores to data with the flag clear
+                         * and wakeup
+                         */
+                        smp_wmb();
+                        data->csd.flags &= ~CSD_FLAG_WAIT;
+                } else
+                        call_rcu(&data->rcu_head, rcu_free_call_data);
+        }
+        rcu_read_unlock();
+
+        put_cpu();
+}
+
+/*
+ * Invoked by arch to handle an IPI for call function single. Must be called
+ * from the arch with interrupts disabled.
+ */
+void generic_smp_call_function_single_interrupt(void)
+{
+        struct call_single_queue *q = &__get_cpu_var(call_single_queue);
+        LIST_HEAD(list);
+
+        /*
+         * Need to see other stores to list head for checking whether
+         * list is empty without holding q->lock
+         */
+        smp_mb();
+        while (!list_empty(&q->list)) {
+                unsigned int data_flags;
+
+                spin_lock(&q->lock);
+                list_replace_init(&q->list, &list);
+                spin_unlock(&q->lock);
+
+                while (!list_empty(&list)) {
+                        struct call_single_data *data;
+
+                        data = list_entry(list.next, struct call_single_data,
+                                                list);
+                        list_del(&data->list);
+
+                        /*
+                         * 'data' can be invalid after this call if
+                         * flags == 0 (when called through
+                         * generic_exec_single(), so save them away before
+                         * making the call.
+                         */
+                        data_flags = data->flags;
+
+                        data->func(data->info);
+
+                        if (data_flags & CSD_FLAG_WAIT) {
+                                smp_wmb();
+                                data->flags &= ~CSD_FLAG_WAIT;
+                        } else if (data_flags & CSD_FLAG_ALLOC)
+                                kfree(data);
+                }
+                /*
+                 * See comment on outer loop
+                 */
+                smp_mb();
+        }
+}
+
+/*
+ * smp_call_function_single - Run a function on a specific CPU
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @wait: If true, wait until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code. Note that @wait
+ * will be implicitly turned on in case of allocation failures, since
+ * we fall back to on-stack allocation.
+ */
+int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
+                             int wait)
+{
+        struct call_single_data d;
+        unsigned long flags;
+        /* prevent preemption and reschedule on another processor */
+        int me = get_cpu();
+
+        /* Can deadlock when called with interrupts disabled */
+        WARN_ON(irqs_disabled());
+
+        if (cpu == me) {
+                local_irq_save(flags);
+                func(info);
+                local_irq_restore(flags);
+        } else {
+                struct call_single_data *data = NULL;
+
+                if (!wait) {
+                        data = kmalloc(sizeof(*data), GFP_ATOMIC);
+                        if (data)
+                                data->flags = CSD_FLAG_ALLOC;
+                }
+                if (!data) {
+                        data = &d;
+                        data->flags = CSD_FLAG_WAIT;
+                }
+
+                data->func = func;
+                data->info = info;
+                generic_exec_single(cpu, data);
+        }
+
+        put_cpu();
+        return 0;
+}
+EXPORT_SYMBOL(smp_call_function_single);
+
+/**
+ * __smp_call_function_single(): Run a function on another CPU
+ * @cpu: The CPU to run on.
+ * @data: Pre-allocated and setup data structure
+ *
+ * Like smp_call_function_single(), but allow caller to pass in a pre-allocated
+ * data structure. Useful for embedding @data inside other structures, for
+ * instance.
+ *
+ */
+void __smp_call_function_single(int cpu, struct call_single_data *data)
+{
+        /* Can deadlock when called with interrupts disabled */
+        WARN_ON((data->flags & CSD_FLAG_WAIT) && irqs_disabled());
+
+        generic_exec_single(cpu, data);
+}
+
+/**
+ * smp_call_function_mask(): Run a function on a set of other CPUs.
+ * @mask: The set of cpus to run on.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned. Note that @wait
+ * will be implicitly turned on in case of allocation failures, since
+ * we fall back to on-stack allocation.
+ *
+ * You must not call this function with disabled interrupts or from a
+ * hardware interrupt handler or from a bottom half handler. Preemption
+ * must be disabled when calling this function.
+ */
+int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info,
+                           int wait)
+{
+        struct call_function_data d;
+        struct call_function_data *data = NULL;
+        cpumask_t allbutself;
+        unsigned long flags;
+        int cpu, num_cpus;
+
+        /* Can deadlock when called with interrupts disabled */
+        WARN_ON(irqs_disabled());
+
+        cpu = smp_processor_id();
+        allbutself = cpu_online_map;
+        cpu_clear(cpu, allbutself);
+        cpus_and(mask, mask, allbutself);
+        num_cpus = cpus_weight(mask);
+
+        /*
+         * If zero CPUs, return. If just a single CPU, turn this request
+         * into a targetted single call instead since it's faster.
+         */
+        if (!num_cpus)
+                return 0;
+        else if (num_cpus == 1) {
+                cpu = first_cpu(mask);
+                return smp_call_function_single(cpu, func, info, wait);
+        }
+
+        if (!wait) {
+                data = kmalloc(sizeof(*data), GFP_ATOMIC);
+                if (data)
+                        data->csd.flags = CSD_FLAG_ALLOC;
+        }
+        if (!data) {
+                data = &d;
+                data->csd.flags = CSD_FLAG_WAIT;
+                wait = 1;
+        }
+
+        spin_lock_init(&data->lock);
+        data->csd.func = func;
+        data->csd.info = info;
+        data->refs = num_cpus;
+        data->cpumask = mask;
+
+        spin_lock_irqsave(&call_function_lock, flags);
+        list_add_tail_rcu(&data->csd.list, &call_function_queue);
+        spin_unlock_irqrestore(&call_function_lock, flags);
+
+        /* Send a message to all CPUs in the map */
+        arch_send_call_function_ipi(mask);
+
+        /* optionally wait for the CPUs to complete */
+        if (wait)
+                csd_flag_wait(&data->csd);
+
+        return 0;
+}
+EXPORT_SYMBOL(smp_call_function_mask);
+
+/**
+ * smp_call_function(): Run a function on all other CPUs.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func. In case of allocation
+ * failure, @wait will be implicitly turned on.
+ *
+ * You must not call this function with disabled interrupts or from a
+ * hardware interrupt handler or from a bottom half handler.
+ */
+int smp_call_function(void (*func)(void *), void *info, int wait)
+{
+        int ret;
+
+        preempt_disable();
+        ret = smp_call_function_mask(cpu_online_map, func, info, wait);
+        preempt_enable();
+        return ret;
+}
+EXPORT_SYMBOL(smp_call_function);
+
+void ipi_call_lock(void)
+{
+        spin_lock(&call_function_lock);
+}
+
+void ipi_call_unlock(void)
+{
+        spin_unlock(&call_function_lock);
+}
+
+void ipi_call_lock_irq(void)
+{
+        spin_lock_irq(&call_function_lock);
+}
+
+void ipi_call_unlock_irq(void)
+{
+        spin_unlock_irq(&call_function_lock);
+}
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 3e9e896fdc5..81e2fe0f983 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -645,12 +645,12 @@ __init int spawn_ksoftirqd(void)
 /*
  * Call a function on all processors
  */
-int on_each_cpu(void (*func) (void *info), void *info, int retry, int wait)
+int on_each_cpu(void (*func) (void *info), void *info, int wait)
 {
         int ret = 0;
 
         preempt_disable();
-        ret = smp_call_function(func, info, retry, wait);
+        ret = smp_call_function(func, info, wait);
         local_irq_disable();
         func(info);
         local_irq_enable();
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index b71816e47a3..94b527ef1d1 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -6,19 +6,21 @@
  *  Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
  */
 #include <linux/sched.h>
+#include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/stacktrace.h>
 
 void print_stack_trace(struct stack_trace *trace, int spaces)
 {
-        int i, j;
+        int i;
 
-        for (i = 0; i < trace->nr_entries; i++) {
-                unsigned long ip = trace->entries[i];
+        if (WARN_ON(!trace->entries))
+                return;
 
-                for (j = 0; j < spaces + 1; j++)
-                        printk(" ");
-                print_ip_sym(ip);
+        for (i = 0; i < trace->nr_entries; i++) {
+                printk("%*c", 1 + spaces, ' ');
+                print_ip_sym(trace->entries[i]);
         }
 }
+EXPORT_SYMBOL_GPL(print_stack_trace);
 
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 0d562d6531e..6b16e16428d 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -83,6 +83,9 @@ extern int maps_protect;
 extern int sysctl_stat_interval;
 extern int latencytop_enabled;
 extern int sysctl_nr_open_min, sysctl_nr_open_max;
+#ifdef CONFIG_RCU_TORTURE_TEST
+extern int rcutorture_runnable;
+#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
 
 /* Constants used for minimum and  maximum */
 #if defined(CONFIG_DETECT_SOFTLOCKUP) || defined(CONFIG_HIGHMEM)
@@ -820,6 +823,16 @@ static struct ctl_table kern_table[] = {
                 .child          = key_sysctls,
         },
 #endif
+#ifdef CONFIG_RCU_TORTURE_TEST
+        {
+                .ctl_name       = CTL_UNNUMBERED,
+                .procname       = "rcutorture_runnable",
+                .data           = &rcutorture_runnable,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = &proc_dointvec,
+        },
+#endif
 /*
  * NOTE: do not add new entries to this table unless you have read
  * Documentation/sysctl/ctl_unnumbered.txt
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 67f80c26170..f48d0f09d32 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -268,7 +268,7 @@ void tick_broadcast_on_off(unsigned long reason, int *oncpu)
                        "offline CPU #%d\n", *oncpu);
         else
                 smp_call_function_single(*oncpu, tick_do_broadcast_on_off,
-                                         &reason, 1, 1);
+                                         &reason, 1);
 }
 
 /*
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index d63008b09a4..beef7ccdf84 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -48,6 +48,13 @@ static void tick_do_update_jiffies64(ktime_t now)
         unsigned long ticks = 0;
         ktime_t delta;
 
+        /*
+         * Do a quick check without holding xtime_lock:
+         */
+        delta = ktime_sub(now, last_jiffies_update);
+        if (delta.tv64 < tick_period.tv64)
+                return;
+
         /* Reevalute with xtime_lock held */
         write_seqlock(&xtime_lock);
 
@@ -228,6 +235,7 @@ void tick_nohz_stop_sched_tick(void)
                                local_softirq_pending());
                         ratelimit++;
                 }
+                goto end;
         }
 
         ts->idle_calls++;
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d8b6279a9b4..df27132a56f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -419,7 +419,6 @@ config DEBUG_LOCKING_API_SELFTESTS
 
 config STACKTRACE
         bool
-        depends on DEBUG_KERNEL
         depends on STACKTRACE_SUPPORT
 
 config DEBUG_KOBJECT
@@ -531,16 +530,34 @@ config BOOT_PRINTK_DELAY
 config RCU_TORTURE_TEST
         tristate "torture tests for RCU"
         depends on DEBUG_KERNEL
-        depends on m
         default n
         help
           This option provides a kernel module that runs torture tests
           on the RCU infrastructure.  The kernel module may be built
           after the fact on the running kernel to be tested, if desired.
 
+          Say Y here if you want RCU torture tests to be built into
+          the kernel.
           Say M if you want the RCU torture tests to build as a module.
           Say N if you are unsure.
 
+config RCU_TORTURE_TEST_RUNNABLE
+        bool "torture tests for RCU runnable by default"
+        depends on RCU_TORTURE_TEST = y
+        default n
+        help
+          This option provides a way to build the RCU torture tests
+          directly into the kernel without them starting up at boot
+          time.  You can use /proc/sys/kernel/rcutorture_runnable
+          to manually override this setting.  This /proc file is
+          available only when the RCU torture tests have been built
+          into the kernel.
+
+          Say Y here if you want the RCU torture tests to start during
+          boot (you probably don't).
+          Say N here if you want the RCU torture tests to start only
+          after being manually enabled via /proc.
+
 config KPROBES_SANITY_TEST
         bool "Kprobes sanity tests"
         depends on DEBUG_KERNEL
@@ -563,6 +580,9 @@ config BACKTRACE_SELF_TEST
           for distributions or general kernels, but only for kernel
           developers working on architecture code.
 
+          Note that if you want to also test saved backtraces, you will
+          have to enable STACKTRACE as well.
+
           Say N if you are unsure.
 
 config LKDTM
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index 119174494cb..4a8ba4bf5f6 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -52,7 +52,7 @@ EXPORT_SYMBOL(__percpu_counter_add);
  * Add up all the per-cpu counts, return the result.  This is a more accurate
  * but much slower version of percpu_counter_read_positive()
  */
-s64 __percpu_counter_sum(struct percpu_counter *fbc)
+s64 __percpu_counter_sum(struct percpu_counter *fbc, int set)
 {
         s64 ret;
         int cpu;
@@ -62,7 +62,12 @@ s64 __percpu_counter_sum(struct percpu_counter *fbc)
         for_each_online_cpu(cpu) {
                 s32 *pcount = per_cpu_ptr(fbc->counters, cpu);
                 ret += *pcount;
+                if (set)
+                        *pcount = 0;
         }
+        if (set)
+                fbc->count = ret;
+
         spin_unlock(&fbc->lock);
         return ret;
 }
diff --git a/lib/textsearch.c b/lib/textsearch.c
index be8bda3862f..a3e500ad51d 100644
--- a/lib/textsearch.c
+++ b/lib/textsearch.c
@@ -97,6 +97,7 @@
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/init.h>
+#include <linux/rculist.h>
 #include <linux/rcupdate.h>
 #include <linux/err.h>
 #include <linux/textsearch.h>
diff --git a/mm/filemap.c b/mm/filemap.c
index 1e6a7d34874..65d9d9e2b75 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -236,11 +236,12 @@ int filemap_fdatawrite(struct address_space *mapping)
 }
 EXPORT_SYMBOL(filemap_fdatawrite);
 
-static int filemap_fdatawrite_range(struct address_space *mapping, loff_t start,
+int filemap_fdatawrite_range(struct address_space *mapping, loff_t start,
                                 loff_t end)
 {
         return __filemap_fdatawrite_range(mapping, start, end, WB_SYNC_ALL);
 }
+EXPORT_SYMBOL(filemap_fdatawrite_range);
 
 /**
  * filemap_flush - mostly a non-blocking flush
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index b38f700825f..94c6d8988ab 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -960,6 +960,9 @@ retry:
         }
         if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
                 mapping->writeback_index = index;
+
+        if (wbc->range_cont)
+                wbc->range_start = index << PAGE_CACHE_SHIFT;
         return ret;
 }
 EXPORT_SYMBOL(write_cache_pages);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f024b9b3a2a..79ac4afc908 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -918,7 +918,7 @@ void drain_local_pages(void *arg)
  */
 void drain_all_pages(void)
 {
-        on_each_cpu(drain_local_pages, NULL, 0, 1);
+        on_each_cpu(drain_local_pages, NULL, 1);
 }
 
 #ifdef CONFIG_HIBERNATION
diff --git a/mm/slab.c b/mm/slab.c
index 046607f05f3..052e7d64537 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1901,15 +1901,7 @@ static void check_poison_obj(struct kmem_cache *cachep, void *objp)
 #endif
 
 #if DEBUG
-/**
- * slab_destroy_objs - destroy a slab and its objects
- * @cachep: cache pointer being destroyed
- * @slabp: slab pointer being destroyed
- *
- * Call the registered destructor for each object in a slab that is being
- * destroyed.
- */
-static void slab_destroy_objs(struct kmem_cache *cachep, struct slab *slabp)
+static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slabp)
 {
         int i;
         for (i = 0; i < cachep->num; i++) {
@@ -1938,7 +1930,7 @@ static void slab_destroy_objs(struct kmem_cache *cachep, struct slab *slabp)
         }
 }
 #else
-static void slab_destroy_objs(struct kmem_cache *cachep, struct slab *slabp)
+static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slabp)
 {
 }
 #endif
@@ -1956,7 +1948,7 @@ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
 {
         void *addr = slabp->s_mem - slabp->colouroff;
 
-        slab_destroy_objs(cachep, slabp);
+        slab_destroy_debugcheck(cachep, slabp);
         if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) {
                 struct slab_rcu *slab_rcu;
 
@@ -2454,7 +2446,7 @@ static void drain_cpu_caches(struct kmem_cache *cachep)
         struct kmem_list3 *l3;
         int node;
 
-        on_each_cpu(do_drain, cachep, 1, 1);
+        on_each_cpu(do_drain, cachep, 1);
         check_irq_on();
         for_each_online_node(node) {
                 l3 = cachep->nodelists[node];
@@ -3939,7 +3931,7 @@ static int do_tune_cpucache(struct kmem_cache *cachep, int limit,
         }
         new->cachep = cachep;
 
-        on_each_cpu(do_ccupdate_local, (void *)new, 1, 1);
+        on_each_cpu(do_ccupdate_local, (void *)new, 1);
 
         check_irq_on();
         cachep->batchcount = batchcount;
diff --git a/mm/slub.c b/mm/slub.c
index 5f6e2c4a2ba..35ab38a94b4 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -411,7 +411,7 @@ static void set_track(struct kmem_cache *s, void *object,
         if (addr) {
                 p->addr = addr;
                 p->cpu = smp_processor_id();
-                p->pid = current ? current->pid : -1;
+                p->pid = current->pid;
                 p->when = jiffies;
         } else
                 memset(p, 0, sizeof(struct track));
@@ -1496,7 +1496,7 @@ static void flush_cpu_slab(void *d)
 static void flush_all(struct kmem_cache *s)
 {
 #ifdef CONFIG_SMP
-        on_each_cpu(flush_cpu_slab, s, 1, 1);
+        on_each_cpu(flush_cpu_slab, s, 1);
 #else
         unsigned long flags;
 
@@ -2766,6 +2766,7 @@ void kfree(const void *x)
 
         page = virt_to_head_page(x);
         if (unlikely(!PageSlab(page))) {
+                BUG_ON(!PageCompound(page));
                 put_page(page);
                 return;
         }
diff --git a/net/802/psnap.c b/net/802/psnap.c
index 31128cb92a2..ea464393144 100644
--- a/net/802/psnap.c
+++ b/net/802/psnap.c
@@ -20,6 +20,7 @@
 #include <linux/mm.h>
 #include <linux/in.h>
 #include <linux/init.h>
+#include <linux/rculist.h>
 
 static LIST_HEAD(snap_list);
 static DEFINE_SPINLOCK(snap_lock);
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index ab2225da0ee..08f14f6c5fd 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -27,6 +27,7 @@
 #include <linux/mm.h>
 #include <linux/in.h>
 #include <linux/init.h>
+#include <linux/rculist.h>
 #include <net/p8022.h>
 #include <net/arp.h>
 #include <linux/rtnetlink.h>
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 72c5976a5ce..142060f0205 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -15,6 +15,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/rculist.h>
 #include <linux/spinlock.h>
 #include <linux/times.h>
 #include <linux/netdevice.h>
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index e38034aa56f..9e96ffcd29a 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -13,6 +13,7 @@
  *      2 of the License, or (at your option) any later version.
  */
 #include <linux/kernel.h>
+#include <linux/rculist.h>
 
 #include "br_private.h"
 #include "br_private_stp.h"
diff --git a/net/core/flow.c b/net/core/flow.c
index 19991175fde..5cf81052d04 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -298,7 +298,7 @@ void flow_cache_flush(void)
         init_completion(&info.completion);
 
         local_bh_disable();
-        smp_call_function(flow_cache_flush_per_cpu, &info, 1, 0);
+        smp_call_function(flow_cache_flush_per_cpu, &info, 0);
         flow_cache_flush_tasklet((unsigned long)&info);
         local_bh_enable();
 
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 7f82b761621..cc34ac769a3 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -480,7 +480,7 @@ static void iucv_setmask_mp(void)
                 if (cpu_isset(cpu, iucv_buffer_cpumask) &&
                     !cpu_isset(cpu, iucv_irq_cpumask))
                         smp_call_function_single(cpu, iucv_allow_cpu,
-                                                 NULL, 0, 1);
+                                                 NULL, 1);
         preempt_enable();
 }
 
@@ -498,7 +498,7 @@ static void iucv_setmask_up(void)
         cpumask = iucv_irq_cpumask;
         cpu_clear(first_cpu(iucv_irq_cpumask), cpumask);
         for_each_cpu_mask(cpu, cpumask)
-                smp_call_function_single(cpu, iucv_block_cpu, NULL, 0, 1);
+                smp_call_function_single(cpu, iucv_block_cpu, NULL, 1);
 }
 
 /**
@@ -523,7 +523,7 @@ static int iucv_enable(void)
         rc = -EIO;
         preempt_disable();
         for_each_online_cpu(cpu)
-                smp_call_function_single(cpu, iucv_declare_cpu, NULL, 0, 1);
+                smp_call_function_single(cpu, iucv_declare_cpu, NULL, 1);
         preempt_enable();
         if (cpus_empty(iucv_buffer_cpumask))
                 /* No cpu could declare an iucv buffer. */
@@ -545,7 +545,7 @@ out:
  */
 static void iucv_disable(void)
 {
-        on_each_cpu(iucv_retrieve_cpu, NULL, 0, 1);
+        on_each_cpu(iucv_retrieve_cpu, NULL, 1);
         kfree(iucv_path_table);
 }
 
@@ -580,7 +580,7 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
         case CPU_ONLINE_FROZEN:
         case CPU_DOWN_FAILED:
         case CPU_DOWN_FAILED_FROZEN:
-                smp_call_function_single(cpu, iucv_declare_cpu, NULL, 0, 1);
+                smp_call_function_single(cpu, iucv_declare_cpu, NULL, 1);
                 break;
         case CPU_DOWN_PREPARE:
         case CPU_DOWN_PREPARE_FROZEN:
@@ -589,10 +589,10 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
                 if (cpus_empty(cpumask))
                         /* Can't offline last IUCV enabled cpu. */
                         return NOTIFY_BAD;
-                smp_call_function_single(cpu, iucv_retrieve_cpu, NULL, 0, 1);
+                smp_call_function_single(cpu, iucv_retrieve_cpu, NULL, 1);
                 if (cpus_empty(iucv_irq_cpumask))
                         smp_call_function_single(first_cpu(iucv_buffer_cpumask),
-                                                 iucv_allow_cpu, NULL, 0, 1);
+                                                 iucv_allow_cpu, NULL, 1);
                 break;
         }
         return NOTIFY_OK;
@@ -652,7 +652,7 @@ static void iucv_cleanup_queue(void)
          * pending interrupts force them to the work queue by calling
          * an empty function on all cpus.
          */
-        smp_call_function(__iucv_cleanup_queue, NULL, 0, 1);
+        smp_call_function(__iucv_cleanup_queue, NULL, 1);
         spin_lock_irq(&iucv_queue_lock);
         list_for_each_entry_safe(p, n, &iucv_task_queue, list) {
                 /* Remove stale work items from the task queue. */
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 7d1b1170374..8e0b4c8f62a 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -20,6 +20,7 @@
 #include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
+#include <linux/rculist.h>
 
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_l3proto.h>
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 0edefcfc594..077bcd22879 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -18,6 +18,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/rculist.h>
 #include <linux/types.h>
 #include <linux/timer.h>
 #include <linux/skbuff.h>
diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c
index 02c2f7c0b25..643c032a3a5 100644
--- a/net/netlabel/netlabel_domainhash.c
+++ b/net/netlabel/netlabel_domainhash.c
@@ -30,8 +30,7 @@
  */
 
 #include <linux/types.h>
-#include <linux/rcupdate.h>
-#include <linux/list.h>
+#include <linux/rculist.h>
 #include <linux/skbuff.h>
 #include <linux/spinlock.h>
 #include <linux/string.h>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 91200feb3f9..63f131fc42e 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -555,15 +555,13 @@ static int selinux_set_mnt_opts(struct super_block *sb,
         struct task_security_struct *tsec = current->security;
         struct superblock_security_struct *sbsec = sb->s_security;
         const char *name = sb->s_type->name;
-        struct dentry *root = sb->s_root;
-        struct inode *root_inode = root->d_inode;
-        struct inode_security_struct *root_isec = root_inode->i_security;
+        struct inode *inode = sbsec->sb->s_root->d_inode;
+        struct inode_security_struct *root_isec = inode->i_security;
         u32 fscontext_sid = 0, context_sid = 0, rootcontext_sid = 0;
         u32 defcontext_sid = 0;
         char **mount_options = opts->mnt_opts;
         int *flags = opts->mnt_opts_flags;
         int num_opts = opts->num_mnt_opts;
-        bool can_xattr = false;
 
         mutex_lock(&sbsec->lock);
 
@@ -667,24 +665,14 @@ static int selinux_set_mnt_opts(struct super_block *sb,
                 goto out;
         }
 
-        if (strcmp(name, "proc") == 0)
+        if (strcmp(sb->s_type->name, "proc") == 0)
                 sbsec->proc = 1;
 
-        /*
-         * test if the fs supports xattrs, fs_use might make use of this if the
-         * fs has no definition in policy.
-         */
-        if (root_inode->i_op->getxattr) {
-                rc = root_inode->i_op->getxattr(root, XATTR_NAME_SELINUX, NULL, 0);
-                if (rc >= 0 || rc == -ENODATA)
-                        can_xattr = true;
-        }
-
         /* Determine the labeling behavior to use for this filesystem type. */
-        rc = security_fs_use(name, &sbsec->behavior, &sbsec->sid, can_xattr);
+        rc = security_fs_use(sb->s_type->name, &sbsec->behavior, &sbsec->sid);
         if (rc) {
                 printk(KERN_WARNING "%s: security_fs_use(%s) returned %d\n",
-                       __func__, name, rc);
+                       __func__, sb->s_type->name, rc);
                 goto out;
         }
 
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 44cba2e21dc..7c543003d65 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -136,7 +136,7 @@ int security_get_allow_unknown(void);
 #define SECURITY_FS_USE_MNTPOINT        6 /* use mountpoint labeling */
 
 int security_fs_use(const char *fstype, unsigned int *behavior,
-        u32 *sid, bool can_xattr);
+        u32 *sid);
 
 int security_genfs_sid(const char *fstype, char *name, u16 sclass,
         u32 *sid);
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 8e42da12010..b52f923ce68 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -1934,8 +1934,7 @@ out:
 int security_fs_use(
         const char *fstype,
         unsigned int *behavior,
-        u32 *sid,
-        bool can_xattr)
+        u32 *sid)
 {
         int rc = 0;
         struct ocontext *c;
@@ -1949,7 +1948,6 @@ int security_fs_use(
                 c = c->next;
         }
 
-        /* look for labeling behavior defined in policy */
         if (c) {
                 *behavior = c->v.behavior;
                 if (!c->sid[0]) {
@@ -1960,23 +1958,14 @@ int security_fs_use(
                                 goto out;
                 }
                 *sid = c->sid[0];
-                goto out;
-        }
-
-        /* labeling behavior not in policy, use xattrs if possible */
-        if (can_xattr) {
-                *behavior = SECURITY_FS_USE_XATTR;
-                *sid = SECINITSID_FS;
-                goto out;
-        }
-
-        /* no behavior in policy and can't use xattrs, try GENFS */
-        rc = security_genfs_sid(fstype, "/", SECCLASS_DIR, sid);
-        if (rc) {
-                *behavior = SECURITY_FS_USE_NONE;
-                rc = 0;
         } else {
-                *behavior = SECURITY_FS_USE_GENFS;
+                rc = security_genfs_sid(fstype, "/", SECCLASS_DIR, sid);
+                if (rc) {
+                        *behavior = SECURITY_FS_USE_NONE;
+                        rc = 0;
+                } else {
+                        *behavior = SECURITY_FS_USE_GENFS;
+                }
         }
 
 out:
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 2d29e260da3..d4eae6af073 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1266,12 +1266,12 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
         case CPU_UP_CANCELED:
                 printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
                        cpu);
-                smp_call_function_single(cpu, hardware_disable, NULL, 0, 1);
+                smp_call_function_single(cpu, hardware_disable, NULL, 1);
                 break;
         case CPU_ONLINE:
                 printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
                        cpu);
-                smp_call_function_single(cpu, hardware_enable, NULL, 0, 1);
+                smp_call_function_single(cpu, hardware_enable, NULL, 1);
                 break;
         }
         return NOTIFY_OK;
@@ -1286,7 +1286,7 @@ static int kvm_reboot(struct notifier_block *notifier, unsigned long val,
                  * in vmx root mode.
                  */
                 printk(KERN_INFO "kvm: exiting hardware virtualization\n");
-                on_each_cpu(hardware_disable, NULL, 0, 1);
+                on_each_cpu(hardware_disable, NULL, 1);
         }
         return NOTIFY_OK;
 }
@@ -1474,12 +1474,12 @@ int kvm_init(void *opaque, unsigned int vcpu_size,
         for_each_online_cpu(cpu) {
                 smp_call_function_single(cpu,
                                 kvm_arch_check_processor_compat,
-                                &r, 0, 1);
+                                &r, 1);
                 if (r < 0)
                         goto out_free_1;
         }
 
-        on_each_cpu(hardware_enable, NULL, 0, 1);
+        on_each_cpu(hardware_enable, NULL, 1);
         r = register_cpu_notifier(&kvm_cpu_notifier);
         if (r)
                 goto out_free_2;
@@ -1525,7 +1525,7 @@ out_free_3:
         unregister_reboot_notifier(&kvm_reboot_notifier);
         unregister_cpu_notifier(&kvm_cpu_notifier);
 out_free_2:
-        on_each_cpu(hardware_disable, NULL, 0, 1);
+        on_each_cpu(hardware_disable, NULL, 1);
 out_free_1:
         kvm_arch_hardware_unsetup();
 out_free_0:
@@ -1547,7 +1547,7 @@ void kvm_exit(void)
         sysdev_class_unregister(&kvm_sysdev_class);
         unregister_reboot_notifier(&kvm_reboot_notifier);
         unregister_cpu_notifier(&kvm_cpu_notifier);
-        on_each_cpu(hardware_disable, NULL, 0, 1);
+        on_each_cpu(hardware_disable, NULL, 1);
         kvm_arch_hardware_unsetup();
         kvm_arch_exit();
         kvm_exit_debug();