396 files changed, 9316 insertions, 4797 deletions

diff --git a/Documentation/RCU/checklist.txt b/Documentation/RCU/checklist.txt
index 5c8d74968090..fc103d7a0474 100644
--- a/Documentation/RCU/checklist.txt
+++ b/Documentation/RCU/checklist.txt
@@ -162,9 +162,9 @@ 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() or
-        call_rcu_sched(), is used, the callback function must be
-        written to be called from softirq context.  In particular,
+5.      If call_rcu(), or a related primitive such as call_rcu_bh(),
+        call_rcu_sched(), or call_srcu() 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
@@ -202,11 +202,12 @@ over a rather long period of time, but improvements are always welcome!
         updater uses call_rcu_sched() or synchronize_sched(), then
         the corresponding readers must disable preemption, possibly
         by calling rcu_read_lock_sched() and rcu_read_unlock_sched().
-        If the updater uses synchronize_srcu(), the the corresponding
-        readers must use srcu_read_lock() and srcu_read_unlock(),
-        and with the same srcu_struct.  The rules for the expedited
-        primitives are the same as for their non-expedited counterparts.
-        Mixing things up will result in confusion and broken kernels.
+        If the updater uses synchronize_srcu() or call_srcu(),
+        the the corresponding readers must use srcu_read_lock() and
+        srcu_read_unlock(), and with the same srcu_struct.  The rules for
+        the expedited primitives are the same as for their non-expedited
+        counterparts.  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()
@@ -333,14 +334,14 @@ over a rather long period of time, but improvements are always welcome!
         victim CPU from ever going offline.)
 
 14.     SRCU (srcu_read_lock(), srcu_read_unlock(), srcu_dereference(),
-        synchronize_srcu(), and synchronize_srcu_expedited()) may only
-        be invoked from process context.  Unlike other forms of RCU, it
-        -is- permissible to block in an SRCU read-side critical section
-        (demarked by srcu_read_lock() and srcu_read_unlock()), hence the
-        "SRCU": "sleepable RCU".  Please note that if you don't need
-        to sleep in read-side critical sections, you should be using
-        RCU rather than SRCU, because RCU is almost always faster and
-        easier to use than is SRCU.
+        synchronize_srcu(), synchronize_srcu_expedited(), and call_srcu())
+        may only be invoked from process context.  Unlike other forms of
+        RCU, it -is- permissible to block in an SRCU read-side critical
+        section (demarked by srcu_read_lock() and srcu_read_unlock()),
+        hence the "SRCU": "sleepable RCU".  Please note that if you
+        don't need to sleep in read-side critical sections, you should be
+        using RCU rather than SRCU, because RCU is almost always faster
+        and easier to use than is SRCU.
 
         If you need to enter your read-side critical section in a
         hardirq or exception handler, and then exit that same read-side
@@ -353,8 +354,8 @@ over a rather long period of time, but improvements are always welcome!
         cleanup_srcu_struct().  These are passed a "struct srcu_struct"
         that defines the scope of a given SRCU domain.  Once initialized,
         the srcu_struct is passed to srcu_read_lock(), srcu_read_unlock()
-        synchronize_srcu(), and synchronize_srcu_expedited().  A given
-        synchronize_srcu() waits only for SRCU read-side critical
+        synchronize_srcu(), synchronize_srcu_expedited(), and call_srcu().
+        A given synchronize_srcu() waits only for SRCU read-side critical
         sections governed by srcu_read_lock() and srcu_read_unlock()
         calls that have been passed the same srcu_struct.  This property
         is what makes sleeping read-side critical sections tolerable --
@@ -374,7 +375,7 @@ over a rather long period of time, but improvements are always welcome!
         requiring SRCU's read-side deadlock immunity or low read-side
         realtime latency.
 
-        Note that, rcu_assign_pointer() relates to SRCU just as they do
+        Note that, rcu_assign_pointer() relates to SRCU just as it does
         to other forms of RCU.
 
 15.     The whole point of call_rcu(), synchronize_rcu(), and friends
diff --git a/Documentation/RCU/rcubarrier.txt b/Documentation/RCU/rcubarrier.txt
index e439a0edee22..38428c125135 100644
--- a/Documentation/RCU/rcubarrier.txt
+++ b/Documentation/RCU/rcubarrier.txt
@@ -79,8 +79,6 @@ complete. Pseudo-code using rcu_barrier() is as follows:
    2. Execute rcu_barrier().
    3. Allow the module to be unloaded.
 
-Quick Quiz #1: Why is there no srcu_barrier()?
-
 The rcutorture module makes use of rcu_barrier in its exit function
 as follows:
 
@@ -162,7 +160,7 @@ for any pre-existing callbacks to complete.
 Then lines 55-62 print status and do operation-specific cleanup, and
 then return, permitting the module-unload operation to be completed.
 
-Quick Quiz #2: Is there any other situation where rcu_barrier() might
+Quick Quiz #1: Is there any other situation where rcu_barrier() might
         be required?
 
 Your module might have additional complications. For example, if your
@@ -242,7 +240,7 @@ reaches zero, as follows:
  4 complete(&rcu_barrier_completion);
  5 }
 
-Quick Quiz #3: What happens if CPU 0's rcu_barrier_func() executes
+Quick Quiz #2: What happens if CPU 0's rcu_barrier_func() executes
         immediately (thus incrementing rcu_barrier_cpu_count to the
         value one), but the other CPU's rcu_barrier_func() invocations
         are delayed for a full grace period? Couldn't this result in
@@ -259,12 +257,7 @@ so that your module may be safely unloaded.
 
 Answers to Quick Quizzes
 
-Quick Quiz #1: Why is there no srcu_barrier()?
-
-Answer: Since there is no call_srcu(), there can be no outstanding SRCU
-        callbacks. Therefore, there is no need to wait for them.
-
-Quick Quiz #2: Is there any other situation where rcu_barrier() might
+Quick Quiz #1: Is there any other situation where rcu_barrier() might
         be required?
 
 Answer: Interestingly enough, rcu_barrier() was not originally
@@ -278,7 +271,7 @@ Answer: Interestingly enough, rcu_barrier() was not originally
         implementing rcutorture, and found that rcu_barrier() solves
         this problem as well.
 
-Quick Quiz #3: What happens if CPU 0's rcu_barrier_func() executes
+Quick Quiz #2: What happens if CPU 0's rcu_barrier_func() executes
         immediately (thus incrementing rcu_barrier_cpu_count to the
         value one), but the other CPU's rcu_barrier_func() invocations
         are delayed for a full grace period? Couldn't this result in
diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
index 4ddf3913fd8c..7dce8a17eac2 100644
--- a/Documentation/RCU/torture.txt
+++ b/Documentation/RCU/torture.txt
@@ -174,11 +174,20 @@ torture_type	The type of RCU to test, with string values as follows:
                         and synchronize_rcu_bh_expedited().
 
                 "srcu": srcu_read_lock(), srcu_read_unlock() and
+                        call_srcu().
+
+                "srcu_sync": srcu_read_lock(), srcu_read_unlock() and
                         synchronize_srcu().
 
                 "srcu_expedited": srcu_read_lock(), srcu_read_unlock() and
                         synchronize_srcu_expedited().
 
+                "srcu_raw": srcu_read_lock_raw(), srcu_read_unlock_raw(),
+                        and call_srcu().
+
+                "srcu_raw_sync": srcu_read_lock_raw(), srcu_read_unlock_raw(),
+                        and synchronize_srcu().
+
                 "sched": preempt_disable(), preempt_enable(), and
                         call_rcu_sched().
 
diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.txt
index 6bbe8dcdc3da..69ee188515e7 100644
--- a/Documentation/RCU/whatisRCU.txt
+++ b/Documentation/RCU/whatisRCU.txt
@@ -833,9 +833,9 @@ sched:	Critical sections	Grace period		Barrier
 
 SRCU:   Critical sections       Grace period            Barrier
 
-        srcu_read_lock          synchronize_srcu        N/A
-        srcu_read_unlock        synchronize_srcu_expedited
-        srcu_read_lock_raw
+        srcu_read_lock          synchronize_srcu        srcu_barrier
+        srcu_read_unlock        call_srcu
+        srcu_read_lock_raw      synchronize_srcu_expedited
         srcu_read_unlock_raw
         srcu_dereference
 
diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx6q-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx6q-pinctrl.txt
index 82b43f915857..a4119f6422d9 100644
--- a/Documentation/devicetree/bindings/pinctrl/fsl,imx6q-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx6q-pinctrl.txt
@@ -1626,3 +1626,5 @@ MX6Q_PAD_SD2_DAT3__PCIE_CTRL_MUX_11		1587
 MX6Q_PAD_SD2_DAT3__GPIO_1_12                    1588
 MX6Q_PAD_SD2_DAT3__SJC_DONE                     1589
 MX6Q_PAD_SD2_DAT3__ANATOP_TESTO_3               1590
+MX6Q_PAD_ENET_RX_ER__ANATOP_USBOTG_ID           1591
+MX6Q_PAD_GPIO_1__ANATOP_USBOTG_ID               1592
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 506c7390c2b9..13f1aa09b938 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -86,7 +86,7 @@ There is also a gitweb interface available at
 http://www.kernel.org/git/?p=utils/kernel/kexec/kexec-tools.git
 
 More information about kexec-tools can be found at
-http://www.kernel.org/pub/linux/utils/kernel/kexec/README.html
+http://horms.net/projects/kexec/
 
 3) Unpack the tarball with the tar command, as follows:
 
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index a92c5ebf373e..12783fa833c3 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2367,6 +2367,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         Set maximum number of finished RCU callbacks to process
                         in one batch.
 
+        rcutree.fanout_leaf=    [KNL,BOOT]
+                        Increase the number of CPUs assigned to each
+                        leaf rcu_node structure.  Useful for very large
+                        systems.
+
         rcutree.qhimark=        [KNL,BOOT]
                         Set threshold of queued
                         RCU callbacks over which batch limiting is disabled.
diff --git a/MAINTAINERS b/MAINTAINERS
index 1b71f6ceae0a..fe643e7b9df6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3433,13 +3433,14 @@ S:	Supported
 F:      drivers/idle/i7300_idle.c
 
 IEEE 802.15.4 SUBSYSTEM
+M:      Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
 M:      Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
-M:      Sergey Lapin <slapin@ossfans.org>
 L:      linux-zigbee-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      http://apps.sourceforge.net/trac/linux-zigbee
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan.git
 S:      Maintained
 F:      net/ieee802154/
+F:      net/mac802154/
 F:      drivers/ieee802154/
 
 IIO SUBSYSTEM AND DRIVERS
@@ -5564,7 +5565,7 @@ F:	Documentation/networking/LICENSE.qla3xxx
 F:      drivers/net/ethernet/qlogic/qla3xxx.*
 
 QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
-M:      Anirban Chakraborty <anirban.chakraborty@qlogic.com>
+M:      Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
 M:      Sony Chacko <sony.chacko@qlogic.com>
 M:      linux-driver@qlogic.com
 L:      netdev@vger.kernel.org
@@ -5572,7 +5573,6 @@ S:	Supported
 F:      drivers/net/ethernet/qlogic/qlcnic/
 
 QLOGIC QLGE 10Gb ETHERNET DRIVER
-M:      Anirban Chakraborty <anirban.chakraborty@qlogic.com>
 M:      Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
 M:      Ron Mercer <ron.mercer@qlogic.com>
 M:      linux-driver@qlogic.com
diff --git a/Makefile b/Makefile
index aa8e315f26ef..4bb09e1b1230 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 5
 SUBLEVEL = 0
-EXTRAVERSION = -rc7
+EXTRAVERSION =
 NAME = Saber-toothed Squirrel
 
 # *DOCUMENTATION*
diff --git a/arch/arm/boot/dts/spear13xx.dtsi b/arch/arm/boot/dts/spear13xx.dtsi
index 10dcec7e7321..f7b84aced654 100644
--- a/arch/arm/boot/dts/spear13xx.dtsi
+++ b/arch/arm/boot/dts/spear13xx.dtsi
@@ -43,8 +43,8 @@
 
         pmu {
                 compatible = "arm,cortex-a9-pmu";
-                interrupts = <0 8 0x04
-                              0 9 0x04>;
+                interrupts = <0 6 0x04
+                              0 7 0x04>;
         };
 
         L2: l2-cache {
@@ -119,8 +119,8 @@
                 gmac0: eth@e2000000 {
                         compatible = "st,spear600-gmac";
                         reg = <0xe2000000 0x8000>;
-                        interrupts = <0 23 0x4
-                                      0 24 0x4>;
+                        interrupts = <0 33 0x4
+                                      0 34 0x4>;
                         interrupt-names = "macirq", "eth_wake_irq";
                         status = "disabled";
                 };
@@ -202,6 +202,7 @@
                         kbd@e0300000 {
                                 compatible = "st,spear300-kbd";
                                 reg = <0xe0300000 0x1000>;
+                                interrupts = <0 52 0x4>;
                                 status = "disabled";
                         };
 
@@ -224,7 +225,7 @@
                         serial@e0000000 {
                                 compatible = "arm,pl011", "arm,primecell";
                                 reg = <0xe0000000 0x1000>;
-                                interrupts = <0 36 0x4>;
+                                interrupts = <0 35 0x4>;
                                 status = "disabled";
                         };
 
diff --git a/arch/arm/boot/dts/spear320-evb.dts b/arch/arm/boot/dts/spear320-evb.dts
index c13fd1f3b09f..e4e912f95024 100644
--- a/arch/arm/boot/dts/spear320-evb.dts
+++ b/arch/arm/boot/dts/spear320-evb.dts
@@ -15,8 +15,8 @@
 /include/ "spear320.dtsi"
 
 / {
-        model = "ST SPEAr300 Evaluation Board";
-        compatible = "st,spear300-evb", "st,spear300";
+        model = "ST SPEAr320 Evaluation Board";
+        compatible = "st,spear320-evb", "st,spear320";
         #address-cells = <1>;
         #size-cells = <1>;
 
@@ -26,7 +26,7 @@
 
         ahb {
                 pinmux@b3000000 {
-                        st,pinmux-mode = <3>;
+                        st,pinmux-mode = <4>;
                         pinctrl-names = "default";
                         pinctrl-0 = <&state_default>;
 
diff --git a/arch/arm/boot/dts/spear600.dtsi b/arch/arm/boot/dts/spear600.dtsi
index 089f0a42c50e..a3c36e47d7ef 100644
--- a/arch/arm/boot/dts/spear600.dtsi
+++ b/arch/arm/boot/dts/spear600.dtsi
@@ -181,6 +181,7 @@
                         timer@f0000000 {
                                 compatible = "st,spear-timer";
                                 reg = <0xf0000000 0x400>;
+                                interrupt-parent = <&vic0>;
                                 interrupts = <16>;
                         };
                 };
diff --git a/arch/arm/mach-spear3xx/spear3xx.c b/arch/arm/mach-spear3xx/spear3xx.c
index 0f41bd1c47c3..66db5f13af84 100644
--- a/arch/arm/mach-spear3xx/spear3xx.c
+++ b/arch/arm/mach-spear3xx/spear3xx.c
@@ -87,7 +87,7 @@ void __init spear3xx_map_io(void)
 
 static void __init spear3xx_timer_init(void)
 {
-        char pclk_name[] = "pll3_48m_clk";
+        char pclk_name[] = "pll3_clk";
         struct clk *gpt_clk, *pclk;
 
         spear3xx_clk_init();
diff --git a/arch/arm/mach-spear6xx/spear6xx.c b/arch/arm/mach-spear6xx/spear6xx.c
index 2e2e3596583e..9af67d003c62 100644
--- a/arch/arm/mach-spear6xx/spear6xx.c
+++ b/arch/arm/mach-spear6xx/spear6xx.c
@@ -423,7 +423,7 @@ void __init spear6xx_map_io(void)
 
 static void __init spear6xx_timer_init(void)
 {
-        char pclk_name[] = "pll3_48m_clk";
+        char pclk_name[] = "pll3_clk";
         struct clk *gpt_clk, *pclk;
 
         spear6xx_clk_init();
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 4044abcf6f9d..655878bcc96d 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1091,7 +1091,7 @@ error:
         while (--i)
                 if (pages[i])
                         __free_pages(pages[i], 0);
-        if (array_size < PAGE_SIZE)
+        if (array_size <= PAGE_SIZE)
                 kfree(pages);
         else
                 vfree(pages);
@@ -1106,7 +1106,7 @@ static int __iommu_free_buffer(struct device *dev, struct page **pages, size_t s
         for (i = 0; i < count; i++)
                 if (pages[i])
                         __free_pages(pages[i], 0);
-        if (array_size < PAGE_SIZE)
+        if (array_size <= PAGE_SIZE)
                 kfree(pages);
         else
                 vfree(pages);
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index f7264621e58d..149fbefc1a4d 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -180,9 +180,7 @@ void __cpuinit start_secondary(void)
 
         notify_cpu_starting(cpu);
 
-        ipi_call_lock();
         set_cpu_online(cpu, true);
-        ipi_call_unlock();
 
         local_irq_enable();
 
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 1113b8aba07f..963d2db53bfa 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -382,7 +382,6 @@ smp_callin (void)
         set_numa_node(cpu_to_node_map[cpuid]);
         set_numa_mem(local_memory_node(cpu_to_node_map[cpuid]));
 
-        ipi_call_lock_irq();
         spin_lock(&vector_lock);
         /* Setup the per cpu irq handling data structures */
         __setup_vector_irq(cpuid);
@@ -390,7 +389,6 @@ smp_callin (void)
         set_cpu_online(cpuid, true);
         per_cpu(cpu_state, cpuid) = CPU_ONLINE;
         spin_unlock(&vector_lock);
-        ipi_call_unlock_irq();
 
         smp_setup_percpu_timer();
 
diff --git a/arch/m32r/boot/compressed/Makefile b/arch/m32r/boot/compressed/Makefile
index 177716b1d613..01729c2979ba 100644
--- a/arch/m32r/boot/compressed/Makefile
+++ b/arch/m32r/boot/compressed/Makefile
@@ -43,9 +43,9 @@ endif
 
 OBJCOPYFLAGS += -R .empty_zero_page
 
-suffix_$(CONFIG_KERNEL_GZIP)    = gz
-suffix_$(CONFIG_KERNEL_BZIP2)   = bz2
-suffix_$(CONFIG_KERNEL_LZMA)    = lzma
+suffix-$(CONFIG_KERNEL_GZIP)    = gz
+suffix-$(CONFIG_KERNEL_BZIP2)   = bz2
+suffix-$(CONFIG_KERNEL_LZMA)    = lzma
 
 $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
         $(call if_changed,ld)
diff --git a/arch/m32r/boot/compressed/misc.c b/arch/m32r/boot/compressed/misc.c
index 370d60881977..28a09529f206 100644
--- a/arch/m32r/boot/compressed/misc.c
+++ b/arch/m32r/boot/compressed/misc.c
@@ -28,7 +28,7 @@ static unsigned long free_mem_ptr;
 static unsigned long free_mem_end_ptr;
 
 #ifdef CONFIG_KERNEL_BZIP2
-static void *memset(void *s, int c, size_t n)
+void *memset(void *s, int c, size_t n)
 {
         char *ss = s;
 
@@ -39,6 +39,16 @@ static void *memset(void *s, int c, size_t n)
 #endif
 
 #ifdef CONFIG_KERNEL_GZIP
+void *memcpy(void *dest, const void *src, size_t n)
+{
+        char *d = dest;
+        const char *s = src;
+        while (n--)
+                *d++ = *s++;
+
+        return dest;
+}
+
 #define BOOT_HEAP_SIZE             0x10000
 #include "../../../../lib/decompress_inflate.c"
 #endif
diff --git a/arch/m32r/include/asm/ptrace.h b/arch/m32r/include/asm/ptrace.h
index 527527584dd0..4313aa62b51b 100644
--- a/arch/m32r/include/asm/ptrace.h
+++ b/arch/m32r/include/asm/ptrace.h
@@ -113,9 +113,6 @@ struct pt_regs {
 
 #define PTRACE_OLDSETOPTIONS    21
 
-/* options set using PTRACE_SETOPTIONS */
-#define PTRACE_O_TRACESYSGOOD   0x00000001
-
 #ifdef __KERNEL__
 
 #include <asm/m32r.h>           /* M32R_PSW_BSM, M32R_PSW_BPM */
diff --git a/arch/m32r/include/asm/smp.h b/arch/m32r/include/asm/smp.h
index cf7829a61551..c689b828dfe2 100644
--- a/arch/m32r/include/asm/smp.h
+++ b/arch/m32r/include/asm/smp.h
@@ -79,11 +79,6 @@ static __inline__ int cpu_number_map(int cpu)
         return cpu;
 }
 
-static __inline__ unsigned int num_booting_cpus(void)
-{
-        return cpumask_weight(&cpu_callout_map);
-}
-
 extern void smp_send_timer(void);
 extern unsigned long send_IPI_mask_phys(const cpumask_t*, int, int);
 
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 4c03361537aa..51f5e9aa4901 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -591,17 +591,16 @@ void user_enable_single_step(struct task_struct *child)
 
         if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
             != sizeof(insn))
-                return -EIO;
+                return;
 
         compute_next_pc(insn, pc, &next_pc, child);
         if (next_pc & 0x80000000)
-                return -EIO;
+                return;
 
         if (embed_debug_trap(child, next_pc))
-                return -EIO;
+                return;
 
         invalidate_cache();
-        return 0;
 }
 
 void user_disable_single_step(struct task_struct *child)
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index f3fb2c029cfc..d0f60b97bbc5 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -286,7 +286,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
                         case -ERESTARTNOINTR:
                                 regs->r0 = regs->orig_r0;
                                 if (prev_insn(regs) < 0)
-                                        return -EFAULT;
+                                        return;
                 }
         }
 
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 09ab87ee6fef..b3e10fdd3898 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -288,6 +288,7 @@ config MIPS_MALTA
         select SYS_HAS_CPU_MIPS32_R1
         select SYS_HAS_CPU_MIPS32_R2
         select SYS_HAS_CPU_MIPS64_R1
+        select SYS_HAS_CPU_MIPS64_R2
         select SYS_HAS_CPU_NEVADA
         select SYS_HAS_CPU_RM7000
         select SYS_HAS_EARLY_PRINTK
@@ -1423,6 +1424,7 @@ config CPU_SB1
 config CPU_CAVIUM_OCTEON
         bool "Cavium Octeon processor"
         depends on SYS_HAS_CPU_CAVIUM_OCTEON
+        select ARCH_SPARSEMEM_ENABLE
         select CPU_HAS_PREFETCH
         select CPU_SUPPORTS_64BIT_KERNEL
         select SYS_SUPPORTS_SMP
diff --git a/arch/mips/bcm47xx/Kconfig b/arch/mips/bcm47xx/Kconfig
index 6210b8d84109..b311be45a720 100644
--- a/arch/mips/bcm47xx/Kconfig
+++ b/arch/mips/bcm47xx/Kconfig
@@ -21,6 +21,7 @@ config BCM47XX_BCMA
         select BCMA
         select BCMA_HOST_SOC
         select BCMA_DRIVER_MIPS
+        select BCMA_HOST_PCI if PCI
         select BCMA_DRIVER_PCI_HOSTMODE if PCI
         default y
         help
diff --git a/arch/mips/bcm63xx/dev-pcmcia.c b/arch/mips/bcm63xx/dev-pcmcia.c
index de4d917fd54d..a551bab5ecb9 100644
--- a/arch/mips/bcm63xx/dev-pcmcia.c
+++ b/arch/mips/bcm63xx/dev-pcmcia.c
@@ -79,11 +79,11 @@ static int __init config_pcmcia_cs(unsigned int cs,
         return ret;
 }
 
-static const __initdata struct {
+static const struct {
         unsigned int    cs;
         unsigned int    base;
         unsigned int    size;
-} pcmcia_cs[3] = {
+} pcmcia_cs[3] __initconst = {
         {
                 .cs     = MPI_CS_PCMCIA_COMMON,
                 .base   = BCM_PCMCIA_COMMON_BASE_PA,
diff --git a/arch/mips/cavium-octeon/Kconfig b/arch/mips/cavium-octeon/Kconfig
index f9e275a50d98..2f4f6d5e05b6 100644
--- a/arch/mips/cavium-octeon/Kconfig
+++ b/arch/mips/cavium-octeon/Kconfig
@@ -82,10 +82,6 @@ config CAVIUM_OCTEON_LOCK_L2_MEMCPY
         help
           Lock the kernel's implementation of memcpy() into L2.
 
-config ARCH_SPARSEMEM_ENABLE
-        def_bool y
-        select SPARSEMEM_STATIC
-
 config IOMMU_HELPER
         bool
 
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index 4b93048044eb..ee1fb9f7f517 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -185,7 +185,6 @@ static void __cpuinit octeon_init_secondary(void)
         octeon_init_cvmcount();
 
         octeon_irq_setup_secondary();
-        raw_local_irq_enable();
 }
 
 /**
@@ -233,6 +232,7 @@ static void octeon_smp_finish(void)
 
         /* to generate the first CPU timer interrupt */
         write_c0_compare(read_c0_count() + mips_hpt_frequency / HZ);
+        local_irq_enable();
 }
 
 /**
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index 2e1ad4c652b7..82ad35ce2b45 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -17,7 +17,6 @@
 #include <linux/irqflags.h>
 #include <linux/types.h>
 #include <asm/barrier.h>
-#include <asm/bug.h>
 #include <asm/byteorder.h>              /* sigh ... */
 #include <asm/cpu-features.h>
 #include <asm/sgidefs.h>
diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h
index 285a41fa0b18..eee10dc07ac1 100644
--- a/arch/mips/include/asm/cmpxchg.h
+++ b/arch/mips/include/asm/cmpxchg.h
@@ -8,6 +8,7 @@
 #ifndef __ASM_CMPXCHG_H
 #define __ASM_CMPXCHG_H
 
+#include <linux/bug.h>
 #include <linux/irqflags.h>
 #include <asm/war.h>
 
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index f9fa2a479dd0..95e40c1e8ed1 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -94,6 +94,7 @@
 #define PRID_IMP_24KE           0x9600
 #define PRID_IMP_74K            0x9700
 #define PRID_IMP_1004K          0x9900
+#define PRID_IMP_M14KC          0x9c00
 
 /*
  * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
@@ -260,12 +261,12 @@ enum cpu_type_enum {
          */
         CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
         CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
-        CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC,
+        CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_M14KC,
 
         /*
          * MIPS64 class processors
          */
-        CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
+        CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
         CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS, CPU_CAVIUM_OCTEON2,
         CPU_XLR, CPU_XLP,
 
@@ -288,7 +289,7 @@ enum cpu_type_enum {
 #define MIPS_CPU_ISA_M64R2      0x00000100
 
 #define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_I | MIPS_CPU_ISA_II | \
-        MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 )
+        MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2)
 #define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
         MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)
 
diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h
index 86548da650e7..991b659e2548 100644
--- a/arch/mips/include/asm/gic.h
+++ b/arch/mips/include/asm/gic.h
@@ -206,7 +206,7 @@
 
 #define GIC_VPE_EIC_SHADOW_SET_BASE     0x0100
 #define GIC_VPE_EIC_SS(intr) \
-        (GIC_EIC_SHADOW_SET_BASE + (4 * intr))
+        (GIC_VPE_EIC_SHADOW_SET_BASE + (4 * intr))
 
 #define GIC_VPE_EIC_VEC_BASE            0x0800
 #define GIC_VPE_EIC_VEC(intr) \
@@ -330,6 +330,17 @@ struct gic_intr_map {
 #define GIC_FLAG_TRANSPARENT   0x02
 };
 
+/*
+ * This is only used in EIC mode. This helps to figure out which
+ * shared interrupts we need to process when we get a vector interrupt.
+ */
+#define GIC_MAX_SHARED_INTR  0x5
+struct gic_shared_intr_map {
+        unsigned int num_shared_intr;
+        unsigned int intr_list[GIC_MAX_SHARED_INTR];
+        unsigned int local_intr_mask;
+};
+
 extern void gic_init(unsigned long gic_base_addr,
         unsigned long gic_addrspace_size, struct gic_intr_map *intrmap,
         unsigned int intrmap_size, unsigned int irqbase);
@@ -338,5 +349,7 @@ extern unsigned int gic_get_int(void);
 extern void gic_send_ipi(unsigned int intr);
 extern unsigned int plat_ipi_call_int_xlate(unsigned int);
 extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
+extern void gic_bind_eic_interrupt(int irq, int set);
+extern unsigned int gic_get_timer_pending(void);
 
 #endif /* _ASM_GICREGS_H */
diff --git a/arch/mips/include/asm/inst.h b/arch/mips/include/asm/inst.h
index 7ebfc392e58d..ab84064283db 100644
--- a/arch/mips/include/asm/inst.h
+++ b/arch/mips/include/asm/inst.h
@@ -251,7 +251,7 @@ struct f_format {	/* FPU register format */
         unsigned int func : 6;
 };
 
-struct ma_format {      /* FPU multipy and add format (MIPS IV) */
+struct ma_format {      /* FPU multiply and add format (MIPS IV) */
         unsigned int opcode : 6;
         unsigned int fr : 5;
         unsigned int ft : 5;
@@ -324,7 +324,7 @@ struct f_format {	/* FPU register format */
         unsigned int opcode : 6;
 };
 
-struct ma_format {      /* FPU multipy and add format (MIPS IV) */
+struct ma_format {      /* FPU multiply and add format (MIPS IV) */
         unsigned int fmt : 2;
         unsigned int func : 4;
         unsigned int fd : 5;
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index a58f22998a86..29d9c23c20c7 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -17,6 +17,7 @@
 #include <linux/types.h>
 
 #include <asm/addrspace.h>
+#include <asm/bug.h>
 #include <asm/byteorder.h>
 #include <asm/cpu.h>
 #include <asm/cpu-features.h>
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index fb698dc09bc9..78dbb8a86da2 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -136,6 +136,7 @@ extern void free_irqno(unsigned int irq);
  * IE7.  Since R2 their number has to be read from the c0_intctl register.
  */
 #define CP0_LEGACY_COMPARE_IRQ 7
+#define CP0_LEGACY_PERFCNT_IRQ 7
 
 extern int cp0_compare_irq;
 extern int cp0_compare_irq_shift;
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 94d4faad29a1..fdcd78ca1b03 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -99,7 +99,7 @@
 #define CKCTL_6368_USBH_CLK_EN          (1 << 15)
 #define CKCTL_6368_DISABLE_GLESS_EN     (1 << 16)
 #define CKCTL_6368_NAND_CLK_EN          (1 << 17)
-#define CKCTL_6368_IPSEC_CLK_EN         (1 << 17)
+#define CKCTL_6368_IPSEC_CLK_EN         (1 << 18)
 
 #define CKCTL_6368_ALL_SAFE_EN          (CKCTL_6368_SWPKT_USB_EN |      \
                                         CKCTL_6368_SWPKT_SAR_EN |       \
diff --git a/arch/mips/include/asm/mips-boards/maltaint.h b/arch/mips/include/asm/mips-boards/maltaint.h
index d11aa02a956a..5447d9fc4219 100644
--- a/arch/mips/include/asm/mips-boards/maltaint.h
+++ b/arch/mips/include/asm/mips-boards/maltaint.h
@@ -86,6 +86,16 @@
 #define GIC_CPU_INT4            4 /* .                  */
 #define GIC_CPU_INT5            5 /* Core Interrupt 5   */
 
+/* MALTA GIC local interrupts */
+#define GIC_INT_TMR             (GIC_CPU_INT5)
+#define GIC_INT_PERFCTR         (GIC_CPU_INT5)
+
+/* GIC constants */
+/* Add 2 to convert non-eic hw int # to eic vector # */
+#define GIC_CPU_TO_VEC_OFFSET   (2)
+/* If we map an intr to pin X, GIC will actually generate vector X+1 */
+#define GIC_PIN_TO_VEC_OFFSET   (1)
+
 #define GIC_EXT_INTR(x)         x
 
 /* External Interrupts used for IPI */
diff --git a/arch/mips/include/asm/mipsmtregs.h b/arch/mips/include/asm/mipsmtregs.h
index c9420aa97e32..e71ff4c317f2 100644
--- a/arch/mips/include/asm/mipsmtregs.h
+++ b/arch/mips/include/asm/mipsmtregs.h
@@ -48,7 +48,7 @@
 #define CP0_VPECONF0            $1, 2
 #define CP0_VPECONF1            $1, 3
 #define CP0_YQMASK              $1, 4
-#define CP0_VPESCHEDULE $1, 5
+#define CP0_VPESCHEDULE         $1, 5
 #define CP0_VPESCHEFBK          $1, 6
 #define CP0_TCSTATUS            $2, 1
 #define CP0_TCBIND              $2, 2
diff --git a/arch/mips/include/asm/switch_to.h b/arch/mips/include/asm/switch_to.h
index 5d33621b5658..4f8ddba8c360 100644
--- a/arch/mips/include/asm/switch_to.h
+++ b/arch/mips/include/asm/switch_to.h
@@ -22,7 +22,7 @@ struct task_struct;
  * switch_to(n) should switch tasks to task nr n, first
  * checking that n isn't the current task, in which case it does nothing.
  */
-extern asmlinkage void *resume(void *last, void *next, void *next_ti);
+extern asmlinkage void *resume(void *last, void *next, void *next_ti, u32 __usedfpu);
 
 extern unsigned int ll_bit;
 extern struct task_struct *ll_task;
@@ -66,11 +66,13 @@ do {									\
 
 #define switch_to(prev, next, last)                                     \
 do {                                                                    \
+        u32 __usedfpu;                                                  \
         __mips_mt_fpaff_switch_to(prev);                                \
         if (cpu_has_dsp)                                                \
                 __save_dsp(prev);                                       \
         __clear_software_ll_bit();                                      \
-        (last) = resume(prev, next, task_thread_info(next));            \
+        __usedfpu = test_and_clear_tsk_thread_flag(prev, TIF_USEDFPU);  \
+        (last) = resume(prev, next, task_thread_info(next), __usedfpu); \
 } while (0)
 
 #define finish_arch_switch(prev)                                        \
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index e2eca7d10598..ca97e0ecb64b 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -60,6 +60,8 @@ struct thread_info {
 register struct thread_info *__current_thread_info __asm__("$28");
 #define current_thread_info()  __current_thread_info
 
+#endif /* !__ASSEMBLY__ */
+
 /* thread information allocation */
 #if defined(CONFIG_PAGE_SIZE_4KB) && defined(CONFIG_32BIT)
 #define THREAD_SIZE_ORDER (1)
@@ -85,8 +87,6 @@ register struct thread_info *__current_thread_info __asm__("$28");
 
 #define STACK_WARN      (THREAD_SIZE / 8)
 
-#endif /* !__ASSEMBLY__ */
-
 #define PREEMPT_ACTIVE          0x10000000
 
 /*
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 6ae7ce4ac63e..f4630e1082ab 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -4,7 +4,7 @@
  * Copyright (C) xxxx  the Anonymous
  * Copyright (C) 1994 - 2006 Ralf Baechle
  * Copyright (C) 2003, 2004  Maciej W. Rozycki
- * Copyright (C) 2001, 2004  MIPS Inc.
+ * Copyright (C) 2001, 2004, 2011, 2012  MIPS Technologies, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -199,6 +199,7 @@ void __init check_wait(void)
                 cpu_wait = rm7k_wait_irqoff;
                 break;
 
+        case CPU_M14KC:
         case CPU_24K:
         case CPU_34K:
         case CPU_1004K:
@@ -810,6 +811,10 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
                 c->cputype = CPU_5KC;
                 __cpu_name[cpu] = "MIPS 5Kc";
                 break;
+        case PRID_IMP_5KE:
+                c->cputype = CPU_5KE;
+                __cpu_name[cpu] = "MIPS 5KE";
+                break;
         case PRID_IMP_20KC:
                 c->cputype = CPU_20KC;
                 __cpu_name[cpu] = "MIPS 20Kc";
@@ -831,6 +836,10 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
                 c->cputype = CPU_74K;
                 __cpu_name[cpu] = "MIPS 74Kc";
                 break;
+        case PRID_IMP_M14KC:
+                c->cputype = CPU_M14KC;
+                __cpu_name[cpu] = "MIPS M14Kc";
+                break;
         case PRID_IMP_1004K:
                 c->cputype = CPU_1004K;
                 __cpu_name[cpu] = "MIPS 1004Kc";
diff --git a/arch/mips/kernel/mips_ksyms.c b/arch/mips/kernel/mips_ksyms.c
index 57ba13edb03a..3fc1691110dc 100644
--- a/arch/mips/kernel/mips_ksyms.c
+++ b/arch/mips/kernel/mips_ksyms.c
@@ -5,7 +5,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1996, 97, 98, 99, 2000, 01, 03, 04, 05 by Ralf Baechle
+ * Copyright (C) 1996, 97, 98, 99, 2000, 01, 03, 04, 05, 12 by Ralf Baechle
  * Copyright (C) 1999, 2000, 01 Silicon Graphics, Inc.
  */
 #include <linux/interrupt.h>
@@ -35,6 +35,12 @@ EXPORT_SYMBOL(memmove);
 EXPORT_SYMBOL(kernel_thread);
 
 /*
+ * Functions that operate on entire pages.  Mostly used by memory management.
+ */
+EXPORT_SYMBOL(clear_page);
+EXPORT_SYMBOL(copy_page);
+
+/*
  * Userspace access stuff.
  */
 EXPORT_SYMBOL(__copy_user);
diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S
index ce89c8061708..0441f54b2a6a 100644
--- a/arch/mips/kernel/octeon_switch.S
+++ b/arch/mips/kernel/octeon_switch.S
@@ -31,7 +31,7 @@
 
 /*
  * task_struct *resume(task_struct *prev, task_struct *next,
- *                     struct thread_info *next_ti)
+ *                     struct thread_info *next_ti, int usedfpu)
  */
         .align  7
         LEAF(resume)
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index f29099b104c4..eb5e394a4650 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -162,11 +162,6 @@ static unsigned int counters_total_to_per_cpu(unsigned int counters)
         return counters >> vpe_shift();
 }
 
-static unsigned int counters_per_cpu_to_total(unsigned int counters)
-{
-        return counters << vpe_shift();
-}
-
 #else /* !CONFIG_MIPS_MT_SMP */
 #define vpe_id()        0
 
diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S
index 293898391e67..9c51be5a163a 100644
--- a/arch/mips/kernel/r2300_switch.S
+++ b/arch/mips/kernel/r2300_switch.S
@@ -43,7 +43,7 @@
 
 /*
  * task_struct *resume(task_struct *prev, task_struct *next,
- *                     struct thread_info *next_ti) )
+ *                     struct thread_info *next_ti, int usedfpu)
  */
 LEAF(resume)
         mfc0    t1, CP0_STATUS
@@ -51,18 +51,9 @@ LEAF(resume)
         cpu_save_nonscratch a0
         sw      ra, THREAD_REG31(a0)
 
-        /*
-         * check if we need to save FPU registers
-         */
-        lw      t3, TASK_THREAD_INFO(a0)
-        lw      t0, TI_FLAGS(t3)
-        li      t1, _TIF_USEDFPU
-        and     t2, t0, t1
-        beqz    t2, 1f
-        nor     t1, zero, t1
+        beqz    a3, 1f
 
-        and     t0, t0, t1
-        sw      t0, TI_FLAGS(t3)
+        PTR_L   t3, TASK_THREAD_INFO(a0)
 
         /*
          * clear saved user stack CU1 bit
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
index 9414f9354469..42d2a3938420 100644
--- a/arch/mips/kernel/r4k_switch.S
+++ b/arch/mips/kernel/r4k_switch.S
@@ -41,7 +41,7 @@
 
 /*
  * task_struct *resume(task_struct *prev, task_struct *next,
- *                     struct thread_info *next_ti)
+ *                     struct thread_info *next_ti, int usedfpu)
  */
         .align  5
         LEAF(resume)
@@ -53,16 +53,10 @@
         /*
          * check if we need to save FPU registers
          */
-        PTR_L   t3, TASK_THREAD_INFO(a0)
-        LONG_L  t0, TI_FLAGS(t3)
-        li      t1, _TIF_USEDFPU
-        and     t2, t0, t1
-        beqz    t2, 1f
-        nor     t1, zero, t1
 
-        and     t0, t0, t1
-        LONG_S  t0, TI_FLAGS(t3)
+        beqz    a3, 1f
 
+        PTR_L   t3, TASK_THREAD_INFO(a0)
         /*
          * clear saved user stack CU1 bit
          */
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 3046e2986006..8e393b8443f7 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -15,7 +15,6 @@
 #include <linux/smp.h>
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
-#include <linux/init.h>
 #include <linux/cpu.h>
 #include <linux/cpumask.h>
 #include <linux/reboot.h>
@@ -197,13 +196,6 @@ static void bmips_init_secondary(void)
 
         write_c0_brcm_action(ACTION_CLR_IPI(smp_processor_id(), 0));
 #endif
-
-        /* make sure there won't be a timer interrupt for a little while */
-        write_c0_compare(read_c0_count() + mips_hpt_frequency / HZ);
-
-        irq_enable_hazard();
-        set_c0_status(IE_SW0 | IE_SW1 | IE_IRQ1 | IE_IRQ5 | ST0_IE);
-        irq_enable_hazard();
 }
 
 /*
@@ -212,6 +204,13 @@ static void bmips_init_secondary(void)
 static void bmips_smp_finish(void)
 {
         pr_info("SMP: CPU%d is running\n", smp_processor_id());
+
+        /* make sure there won't be a timer interrupt for a little while */
+        write_c0_compare(read_c0_count() + mips_hpt_frequency / HZ);
+
+        irq_enable_hazard();
+        set_c0_status(IE_SW0 | IE_SW1 | IE_IRQ1 | IE_IRQ5 | ST0_IE);
+        irq_enable_hazard();
 }
 
 /*
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 48650c818040..1268392f1d27 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -122,13 +122,21 @@ asmlinkage __cpuinit void start_secondary(void)
 
         notify_cpu_starting(cpu);
 
-        mp_ops->smp_finish();
+        set_cpu_online(cpu, true);
+
         set_cpu_sibling_map(cpu);
 
         cpu_set(cpu, cpu_callin_map);
 
         synchronise_count_slave();
 
+        /*
+         * irq will be enabled in ->smp_finish(), enabling it too early
+         * is dangerous.
+         */
+        WARN_ON_ONCE(!irqs_disabled());
+        mp_ops->smp_finish();
+
         cpu_idle();
 }
 
@@ -196,8 +204,6 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
         while (!cpu_isset(cpu, cpu_callin_map))
                 udelay(100);
 
-        set_cpu_online(cpu, true);
-
         return 0;
 }
 
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index f5dd38f1d015..15b5f3cfd20c 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -322,7 +322,7 @@ int __init smtc_build_cpu_map(int start_cpu_slot)
 
 /*
  * Common setup before any secondaries are started
- * Make sure all CPU's are in a sensible state before we boot any of the
+ * Make sure all CPUs are in a sensible state before we boot any of the
  * secondaries.
  *
  * For MIPS MT "SMTC" operation, we set up all TCs, spread as evenly
@@ -340,12 +340,12 @@ static void smtc_tc_setup(int vpe, int tc, int cpu)
         /*
          * TCContext gets an offset from the base of the IPIQ array
          * to be used in low-level code to detect the presence of
-         * an active IPI queue
+         * an active IPI queue.
          */
         write_tc_c0_tccontext((sizeof(struct smtc_ipi_q) * cpu) << 16);
         /* Bind tc to vpe */
         write_tc_c0_tcbind(vpe);
-        /* In general, all TCs should have the same cpu_data indications */
+        /* In general, all TCs should have the same cpu_data indications. */
         memcpy(&cpu_data[cpu], &cpu_data[0], sizeof(struct cpuinfo_mips));
         /* For 34Kf, start with TC/CPU 0 as sole owner of single FPU context */
         if (cpu_data[0].cputype == CPU_34K ||
@@ -358,8 +358,8 @@ static void smtc_tc_setup(int vpe, int tc, int cpu)
 }
 
 /*
- * Tweak to get Count registes in as close a sync as possible.
- * Value seems good for 34K-class cores.
+ * Tweak to get Count registes in as close a sync as possible.  The
+ * value seems good for 34K-class cores.
  */
 
 #define CP0_SKEW 8
@@ -615,7 +615,6 @@ void __cpuinit smtc_boot_secondary(int cpu, struct task_struct *idle)
 
 void smtc_init_secondary(void)
 {
-        local_irq_enable();
 }
 
 void smtc_smp_finish(void)
@@ -631,6 +630,8 @@ void smtc_smp_finish(void)
         if (cpu > 0 && (cpu_data[cpu].vpe_id != cpu_data[cpu - 1].vpe_id))
                 write_c0_compare(read_c0_count() + mips_hpt_frequency/HZ);
 
+        local_irq_enable();
+
         printk("TC %d going on-line as CPU %d\n",
                 cpu_data[smp_processor_id()].tc_id, smp_processor_id());
 }
diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c
index 99f913c8d7a6..842d55e411fd 100644
--- a/arch/mips/kernel/sync-r4k.c
+++ b/arch/mips/kernel/sync-r4k.c
@@ -111,7 +111,6 @@ void __cpuinit synchronise_count_master(void)
 void __cpuinit synchronise_count_slave(void)
 {
         int i;
-        unsigned long flags;
         unsigned int initcount;
         int ncpus;
 
@@ -123,8 +122,6 @@ void __cpuinit synchronise_count_slave(void)
         return;
 #endif
 
-        local_irq_save(flags);
-
         /*
          * Not every cpu is online at the time this gets called,
          * so we first wait for the master to say everyone is ready
@@ -154,7 +151,5 @@ void __cpuinit synchronise_count_slave(void)
         }
         /* Arrange for an interrupt in a short while */
         write_c0_compare(read_c0_count() + COUNTON);
-
-        local_irq_restore(flags);
 }
 #undef NR_LOOPS
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 2d0c2a277f52..c3c293543703 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -132,6 +132,9 @@ static void show_backtrace(struct task_struct *task, const struct pt_regs *regs)
         unsigned long ra = regs->regs[31];
         unsigned long pc = regs->cp0_epc;
 
+        if (!task)
+                task = current;
+
         if (raw_show_trace || !__kernel_text_address(pc)) {
                 show_raw_backtrace(sp);
                 return;
@@ -1249,6 +1252,7 @@ static inline void parity_protection_init(void)
                 break;
 
         case CPU_5KC:
+        case CPU_5KE:
                 write_c0_ecc(0x80000000);
                 back_to_back_c0_hazard();
                 /* Set the PE bit (bit 31) in the c0_errctl register. */
@@ -1498,6 +1502,7 @@ extern void flush_tlb_handlers(void);
  * Timer interrupt
  */
 int cp0_compare_irq;
+EXPORT_SYMBOL_GPL(cp0_compare_irq);
 int cp0_compare_irq_shift;
 
 /*
@@ -1597,7 +1602,7 @@ void __cpuinit per_cpu_trap_init(bool is_boot_cpu)
                         cp0_perfcount_irq = -1;
         } else {
                 cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
-                cp0_compare_irq_shift = cp0_compare_irq;
+                cp0_compare_irq_shift = CP0_LEGACY_PERFCNT_IRQ;
                 cp0_perfcount_irq = -1;
         }
 
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 924da5eb7031..df243a64f430 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -1,5 +1,6 @@
 #include <asm/asm-offsets.h>
 #include <asm/page.h>
+#include <asm/thread_info.h>
 #include <asm-generic/vmlinux.lds.h>
 
 #undef mips
@@ -72,7 +73,7 @@ SECTIONS
         .data : {       /* Data */
                 . = . + DATAOFFSET;             /* for CONFIG_MAPPED_KERNEL */
 
-                INIT_TASK_DATA(PAGE_SIZE)
+                INIT_TASK_DATA(THREAD_SIZE)
                 NOSAVE_DATA
                 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
                 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile
index 4aa20280613e..fd6203f14f1f 100644
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -3,8 +3,8 @@
 #
 
 obj-y                           += cache.o dma-default.o extable.o fault.o \
-                                   gup.o init.o mmap.o page.o tlbex.o \
-                                   tlbex-fault.o uasm.o
+                                   gup.o init.o mmap.o page.o page-funcs.o \
+                                   tlbex.o tlbex-fault.o uasm.o
 
 obj-$(CONFIG_32BIT)             += ioremap.o pgtable-32.o
 obj-$(CONFIG_64BIT)             += pgtable-64.o
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 5109be96d98d..f092c265dc63 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -977,7 +977,7 @@ static void __cpuinit probe_pcache(void)
                         c->icache.linesz = 2 << lsize;
                 else
                         c->icache.linesz = lsize;
-                c->icache.sets = 64 << ((config1 >> 22) & 7);
+                c->icache.sets = 32 << (((config1 >> 22) + 1) & 7);
                 c->icache.ways = 1 + ((config1 >> 16) & 7);
 
                 icache_size = c->icache.sets *
@@ -997,7 +997,7 @@ static void __cpuinit probe_pcache(void)
                         c->dcache.linesz = 2 << lsize;
                 else
                         c->dcache.linesz= lsize;
-                c->dcache.sets = 64 << ((config1 >> 13) & 7);
+                c->dcache.sets = 32 << (((config1 >> 13) + 1) & 7);
                 c->dcache.ways = 1 + ((config1 >> 7) & 7);
 
                 dcache_size = c->dcache.sets *
@@ -1051,6 +1051,7 @@ static void __cpuinit probe_pcache(void)
         case CPU_R14000:
                 break;
 
+        case CPU_M14KC:
         case CPU_24K:
         case CPU_34K:
         case CPU_74K:
diff --git a/arch/mips/mm/page-funcs.S b/arch/mips/mm/page-funcs.S
new file mode 100644
index 000000000000..48a6b38ff13e
--- /dev/null
+++ b/arch/mips/mm/page-funcs.S
@@ -0,0 +1,50 @@
+/*
+ * 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.
+ *
+ * Micro-assembler generated clear_page/copy_page functions.
+ *
+ * Copyright (C) 2012  MIPS Technologies, Inc.
+ * Copyright (C) 2012  Ralf Baechle <ralf@linux-mips.org>
+ */
+#include <asm/asm.h>
+#include <asm/regdef.h>
+
+#ifdef CONFIG_SIBYTE_DMA_PAGEOPS
+#define cpu_clear_page_function_name    clear_page_cpu
+#define cpu_copy_page_function_name     copy_page_cpu
+#else
+#define cpu_clear_page_function_name    clear_page
+#define cpu_copy_page_function_name     copy_page
+#endif
+
+/*
+ * Maximum sizes:
+ *
+ * R4000 128 bytes S-cache:             0x058 bytes
+ * R4600 v1.7:                          0x05c bytes
+ * R4600 v2.0:                          0x060 bytes
+ * With prefetching, 16 word strides    0x120 bytes
+ */
+EXPORT(__clear_page_start)
+LEAF(cpu_clear_page_function_name)
+1:      j       1b              /* Dummy, will be replaced. */
+        .space 288
+END(cpu_clear_page_function_name)
+EXPORT(__clear_page_end)
+
+/*
+ * Maximum sizes:
+ *
+ * R4000 128 bytes S-cache:             0x11c bytes
+ * R4600 v1.7:                          0x080 bytes
+ * R4600 v2.0:                          0x07c bytes
+ * With prefetching, 16 word strides    0x540 bytes
+ */
+EXPORT(__copy_page_start)
+LEAF(cpu_copy_page_function_name)
+1:      j       1b              /* Dummy, will be replaced. */
+        .space 1344
+END(cpu_copy_page_function_name)
+EXPORT(__copy_page_end)
diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c
index cc0b626858b3..98f530e18216 100644
--- a/arch/mips/mm/page.c
+++ b/arch/mips/mm/page.c
@@ -6,6 +6,7 @@
  * Copyright (C) 2003, 04, 05 Ralf Baechle (ralf@linux-mips.org)
  * Copyright (C) 2007  Maciej W. Rozycki
  * Copyright (C) 2008  Thiemo Seufer
+ * Copyright (C) 2012  MIPS Technologies, Inc.
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -71,45 +72,6 @@ static struct uasm_reloc __cpuinitdata relocs[5];
 #define cpu_is_r4600_v1_x()     ((read_c0_prid() & 0xfffffff0) == 0x00002010)
 #define cpu_is_r4600_v2_x()     ((read_c0_prid() & 0xfffffff0) == 0x00002020)
 
-/*
- * Maximum sizes:
- *
- * R4000 128 bytes S-cache:             0x058 bytes
- * R4600 v1.7:                          0x05c bytes
- * R4600 v2.0:                          0x060 bytes
- * With prefetching, 16 word strides    0x120 bytes
- */
-
-static u32 clear_page_array[0x120 / 4];
-
-#ifdef CONFIG_SIBYTE_DMA_PAGEOPS
-void clear_page_cpu(void *page) __attribute__((alias("clear_page_array")));
-#else
-void clear_page(void *page) __attribute__((alias("clear_page_array")));
-#endif
-
-EXPORT_SYMBOL(clear_page);
-
-/*
- * Maximum sizes:
- *
- * R4000 128 bytes S-cache:             0x11c bytes
- * R4600 v1.7:                          0x080 bytes
- * R4600 v2.0:                          0x07c bytes
- * With prefetching, 16 word strides    0x540 bytes
- */
-static u32 copy_page_array[0x540 / 4];
-
-#ifdef CONFIG_SIBYTE_DMA_PAGEOPS
-void
-copy_page_cpu(void *to, void *from) __attribute__((alias("copy_page_array")));
-#else
-void copy_page(void *to, void *from) __attribute__((alias("copy_page_array")));
-#endif
-
-EXPORT_SYMBOL(copy_page);
-
-
 static int pref_bias_clear_store __cpuinitdata;
 static int pref_bias_copy_load __cpuinitdata;
 static int pref_bias_copy_store __cpuinitdata;
@@ -282,10 +244,15 @@ static inline void __cpuinit build_clear_pref(u32 **buf, int off)
                 }
 }
 
+extern u32 __clear_page_start;
+extern u32 __clear_page_end;
+extern u32 __copy_page_start;
+extern u32 __copy_page_end;
+
 void __cpuinit build_clear_page(void)
 {
         int off;
-        u32 *buf = (u32 *)&clear_page_array;
+        u32 *buf = &__clear_page_start;
         struct uasm_label *l = labels;
         struct uasm_reloc *r = relocs;
         int i;
@@ -356,17 +323,17 @@ void __cpuinit build_clear_page(void)
         uasm_i_jr(&buf, RA);
         uasm_i_nop(&buf);
 
-        BUG_ON(buf > clear_page_array + ARRAY_SIZE(clear_page_array));
+        BUG_ON(buf > &__clear_page_end);
 
         uasm_resolve_relocs(relocs, labels);
 
         pr_debug("Synthesized clear page handler (%u instructions).\n",
-                 (u32)(buf - clear_page_array));
+                 (u32)(buf - &__clear_page_start));
 
         pr_debug("\t.set push\n");
         pr_debug("\t.set noreorder\n");
-        for (i = 0; i < (buf - clear_page_array); i++)
-                pr_debug("\t.word 0x%08x\n", clear_page_array[i]);
+        for (i = 0; i < (buf - &__clear_page_start); i++)
+                pr_debug("\t.word 0x%08x\n", (&__clear_page_start)[i]);
         pr_debug("\t.set pop\n");
 }
 
@@ -427,7 +394,7 @@ static inline void build_copy_store_pref(u32 **buf, int off)
 void __cpuinit build_copy_page(void)
 {
         int off;
-        u32 *buf = (u32 *)&copy_page_array;
+        u32 *buf = &__copy_page_start;
         struct uasm_label *l = labels;
         struct uasm_reloc *r = relocs;
         int i;
@@ -595,21 +562,23 @@ void __cpuinit build_copy_page(void)
         uasm_i_jr(&buf, RA);
         uasm_i_nop(&buf);
 
-        BUG_ON(buf > copy_page_array + ARRAY_SIZE(copy_page_array));
+        BUG_ON(buf > &__copy_page_end);
 
         uasm_resolve_relocs(relocs, labels);
 
         pr_debug("Synthesized copy page handler (%u instructions).\n",
-                 (u32)(buf - copy_page_array));
+                 (u32)(buf - &__copy_page_start));
 
         pr_debug("\t.set push\n");
         pr_debug("\t.set noreorder\n");
-        for (i = 0; i < (buf - copy_page_array); i++)
-                pr_debug("\t.word 0x%08x\n", copy_page_array[i]);
+        for (i = 0; i < (buf - &__copy_page_start); i++)
+                pr_debug("\t.word 0x%08x\n", (&__copy_page_start)[i]);
         pr_debug("\t.set pop\n");
 }
 
 #ifdef CONFIG_SIBYTE_DMA_PAGEOPS
+extern void clear_page_cpu(void *page);
+extern void copy_page_cpu(void *to, void *from);
 
 /*
  * Pad descriptors to cacheline, since each is exclusively owned by a
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 0bc485b3cd60..03eb0ef91580 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -9,6 +9,7 @@
  * Copyright (C) 2005, 2007, 2008, 2009  Maciej W. Rozycki
  * Copyright (C) 2006  Ralf Baechle (ralf@linux-mips.org)
  * Copyright (C) 2008, 2009 Cavium Networks, Inc.
+ * Copyright (C) 2011  MIPS Technologies, Inc.
  *
  * ... and the days got worse and worse and now you see
  * I've gone completly out of my mind.
@@ -494,6 +495,7 @@ static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l,
         case CPU_R14000:
         case CPU_4KC:
         case CPU_4KEC:
+        case CPU_M14KC:
         case CPU_SB1:
         case CPU_SB1A:
         case CPU_4KSC:
diff --git a/arch/mips/mti-malta/malta-pci.c b/arch/mips/mti-malta/malta-pci.c
index bf80921f2f56..284dea54faf5 100644
--- a/arch/mips/mti-malta/malta-pci.c
+++ b/arch/mips/mti-malta/malta-pci.c
@@ -241,8 +241,9 @@ void __init mips_pcibios_init(void)
                 return;
         }
 
-        if (controller->io_resource->start < 0x00001000UL)      /* FIXME */
-                controller->io_resource->start = 0x00001000UL;
+        /* Change start address to avoid conflicts with ACPI and SMB devices */
+        if (controller->io_resource->start < 0x00002000UL)
+                controller->io_resource->start = 0x00002000UL;
 
         iomem_resource.end &= 0xfffffffffULL;                   /* 64 GB */
         ioport_resource.end = controller->io_resource->end;
@@ -253,7 +254,7 @@ void __init mips_pcibios_init(void)
 }
 
 /* Enable PCI 2.1 compatibility in PIIX4 */
-static void __init quirk_dlcsetup(struct pci_dev *dev)
+static void __devinit quirk_dlcsetup(struct pci_dev *dev)
 {
         u8 odlc, ndlc;
         (void) pci_read_config_byte(dev, 0x82, &odlc);
diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
index b7f37d4982fa..2e28f653f66d 100644
--- a/arch/mips/mti-malta/malta-setup.c
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -111,7 +111,7 @@ static void __init pci_clock_check(void)
         unsigned int __iomem *jmpr_p =
                 (unsigned int *) ioremap(MALTA_JMPRS_REG, sizeof(unsigned int));
         int jmpr = (__raw_readl(jmpr_p) >> 2) & 0x07;
-        static const int pciclocks[] __initdata = {
+        static const int pciclocks[] __initconst = {
                 33, 20, 25, 30, 12, 16, 37, 10
         };
         int pciclock = pciclocks[jmpr];
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index acb677a1227c..b3df7c2aad1e 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -82,8 +82,10 @@ void __init prom_free_prom_memory(void)
 
 void xlp_mmu_init(void)
 {
+        /* enable extended TLB and Large Fixed TLB */
         write_c0_config6(read_c0_config6() | 0x24);
-        current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1;
+
+        /* set page mask of Fixed TLB in config7 */
         write_c0_config7(PM_DEFAULT_MASK >>
                 (13 + (ffz(PM_DEFAULT_MASK >> 13) / 2)));
 }
@@ -100,6 +102,10 @@ void __init prom_init(void)
         nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1));
 #ifdef CONFIG_SMP
         nlm_wakeup_secondary_cpus(0xffffffff);
+
+        /* update TLB size after waking up threads */
+        current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1;
+
         register_smp_ops(&nlm_smp_ops);
 #endif
 }
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index d1f2d4c52d42..b6e378211a2c 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -78,6 +78,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 
         switch (current_cpu_type()) {
         case CPU_5KC:
+        case CPU_M14KC:
         case CPU_20KC:
         case CPU_24K:
         case CPU_25KF:
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index baba3bcaa3c2..4d80a856048d 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -322,6 +322,10 @@ static int __init mipsxx_init(void)
 
         op_model_mipsxx_ops.num_counters = counters;
         switch (current_cpu_type()) {
+        case CPU_M14KC:
+                op_model_mipsxx_ops.cpu_type = "mips/M14Kc";
+                break;
+
         case CPU_20KC:
                 op_model_mipsxx_ops.cpu_type = "mips/20K";
                 break;
diff --git a/arch/mips/pci/fixup-fuloong2e.c b/arch/mips/pci/fixup-fuloong2e.c
index d5d4c018fb04..0857ab8c3919 100644
--- a/arch/mips/pci/fixup-fuloong2e.c
+++ b/arch/mips/pci/fixup-fuloong2e.c
@@ -48,7 +48,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
         return 0;
 }
 
-static void __init loongson2e_nec_fixup(struct pci_dev *pdev)
+static void __devinit loongson2e_nec_fixup(struct pci_dev *pdev)
 {
         unsigned int val;
 
@@ -60,7 +60,7 @@ static void __init loongson2e_nec_fixup(struct pci_dev *pdev)
         pci_write_config_dword(pdev, 0xe4, 1 << 5);
 }
 
-static void __init loongson2e_686b_func0_fixup(struct pci_dev *pdev)
+static void __devinit loongson2e_686b_func0_fixup(struct pci_dev *pdev)
 {
         unsigned char c;
 
@@ -135,7 +135,7 @@ static void __init loongson2e_686b_func0_fixup(struct pci_dev *pdev)
         printk(KERN_INFO"via686b fix: ISA bridge done\n");
 }
 
-static void __init loongson2e_686b_func1_fixup(struct pci_dev *pdev)
+static void __devinit loongson2e_686b_func1_fixup(struct pci_dev *pdev)
 {
         printk(KERN_INFO"via686b fix: IDE\n");
 
@@ -168,19 +168,19 @@ static void __init loongson2e_686b_func1_fixup(struct pci_dev *pdev)
         printk(KERN_INFO"via686b fix: IDE done\n");
 }
 
-static void __init loongson2e_686b_func2_fixup(struct pci_dev *pdev)
+static void __devinit loongson2e_686b_func2_fixup(struct pci_dev *pdev)
 {
         /* irq routing */
         pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, 10);
 }
 
-static void __init loongson2e_686b_func3_fixup(struct pci_dev *pdev)
+static void __devinit loongson2e_686b_func3_fixup(struct pci_dev *pdev)
 {
         /* irq routing */
         pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, 11);
 }
 
-static void __init loongson2e_686b_func5_fixup(struct pci_dev *pdev)
+static void __devinit loongson2e_686b_func5_fixup(struct pci_dev *pdev)
 {
         unsigned int val;
         unsigned char c;
diff --git a/arch/mips/pci/fixup-lemote2f.c b/arch/mips/pci/fixup-lemote2f.c
index 4b9768d5d729..a7b917dcf604 100644
--- a/arch/mips/pci/fixup-lemote2f.c
+++ b/arch/mips/pci/fixup-lemote2f.c
@@ -96,21 +96,21 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 }
 
 /* CS5536 SPEC. fixup */
-static void __init loongson_cs5536_isa_fixup(struct pci_dev *pdev)
+static void __devinit loongson_cs5536_isa_fixup(struct pci_dev *pdev)
 {
         /* the uart1 and uart2 interrupt in PIC is enabled as default */
         pci_write_config_dword(pdev, PCI_UART1_INT_REG, 1);
         pci_write_config_dword(pdev, PCI_UART2_INT_REG, 1);
 }
 
-static void __init loongson_cs5536_ide_fixup(struct pci_dev *pdev)
+static void __devinit loongson_cs5536_ide_fixup(struct pci_dev *pdev)
 {
         /* setting the mutex pin as IDE function */
         pci_write_config_dword(pdev, PCI_IDE_CFG_REG,
                                CS5536_IDE_FLASH_SIGNATURE);
 }
 
-static void __init loongson_cs5536_acc_fixup(struct pci_dev *pdev)
+static void __devinit loongson_cs5536_acc_fixup(struct pci_dev *pdev)
 {
         /* enable the AUDIO interrupt in PIC  */
         pci_write_config_dword(pdev, PCI_ACC_INT_REG, 1);
@@ -118,14 +118,14 @@ static void __init loongson_cs5536_acc_fixup(struct pci_dev *pdev)
         pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xc0);
 }
 
-static void __init loongson_cs5536_ohci_fixup(struct pci_dev *pdev)
+static void __devinit loongson_cs5536_ohci_fixup(struct pci_dev *pdev)
 {
         /* enable the OHCI interrupt in PIC */
         /* THE OHCI, EHCI, UDC, OTG are shared with interrupt in PIC */
         pci_write_config_dword(pdev, PCI_OHCI_INT_REG, 1);
 }
 
-static void __init loongson_cs5536_ehci_fixup(struct pci_dev *pdev)
+static void __devinit loongson_cs5536_ehci_fixup(struct pci_dev *pdev)
 {
         u32 hi, lo;
 
@@ -137,7 +137,7 @@ static void __init loongson_cs5536_ehci_fixup(struct pci_dev *pdev)
         pci_write_config_dword(pdev, PCI_EHCI_FLADJ_REG, 0x2000);
 }
 
-static void __init loongson_nec_fixup(struct pci_dev *pdev)
+static void __devinit loongson_nec_fixup(struct pci_dev *pdev)
 {
         unsigned int val;
 
diff --git a/arch/mips/pci/fixup-malta.c b/arch/mips/pci/fixup-malta.c
index 0f48498bc231..70073c98ed32 100644
--- a/arch/mips/pci/fixup-malta.c
+++ b/arch/mips/pci/fixup-malta.c
@@ -49,10 +49,10 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
         return 0;
 }
 
-static void __init malta_piix_func0_fixup(struct pci_dev *pdev)
+static void __devinit malta_piix_func0_fixup(struct pci_dev *pdev)
 {
         unsigned char reg_val;
-        static int piixirqmap[16] __initdata = {  /* PIIX PIRQC[A:D] irq mappings */
+        static int piixirqmap[16] __devinitdata = {  /* PIIX PIRQC[A:D] irq mappings */
                 0,  0,  0,  3,
                 4,  5,  6,  7,
                 0,  9, 10, 11,
@@ -83,7 +83,7 @@ static void __init malta_piix_func0_fixup(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_0,
          malta_piix_func0_fixup);
 
-static void __init malta_piix_func1_fixup(struct pci_dev *pdev)
+static void __devinit malta_piix_func1_fixup(struct pci_dev *pdev)
 {
         unsigned char reg_val;
 
diff --git a/arch/mips/pci/fixup-mpc30x.c b/arch/mips/pci/fixup-mpc30x.c
index e08f49cb6875..8e4f8288eca2 100644
--- a/arch/mips/pci/fixup-mpc30x.c
+++ b/arch/mips/pci/fixup-mpc30x.c
@@ -22,13 +22,13 @@
 
 #include <asm/vr41xx/mpc30x.h>
 
-static const int internal_func_irqs[] __initdata = {
+static const int internal_func_irqs[] __initconst = {
         VRC4173_CASCADE_IRQ,
         VRC4173_AC97_IRQ,
         VRC4173_USB_IRQ,
 };
 
-static const int irq_tab_mpc30x[] __initdata = {
+static const int irq_tab_mpc30x[] __initconst = {
  [12] = VRC4173_PCMCIA1_IRQ,
  [13] = VRC4173_PCMCIA2_IRQ,
  [29] = MQ200_IRQ,
diff --git a/arch/mips/pci/fixup-sb1250.c b/arch/mips/pci/fixup-sb1250.c
index f0bb9146e6c0..d02900a72916 100644
--- a/arch/mips/pci/fixup-sb1250.c
+++ b/arch/mips/pci/fixup-sb1250.c
@@ -15,7 +15,7 @@
  * Set the BCM1250, etc. PCI host bridge's TRDY timeout
  * to the finite max.
  */
-static void __init quirk_sb1250_pci(struct pci_dev *dev)
+static void __devinit quirk_sb1250_pci(struct pci_dev *dev)
 {
         pci_write_config_byte(dev, 0x40, 0xff);
 }
@@ -25,7 +25,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_PCI,
 /*
  * The BCM1250, etc. PCI/HT bridge reports as a host bridge.
  */
-static void __init quirk_sb1250_ht(struct pci_dev *dev)
+static void __devinit quirk_sb1250_ht(struct pci_dev *dev)
 {
         dev->class = PCI_CLASS_BRIDGE_PCI << 8;
 }
@@ -35,7 +35,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SIBYTE, PCI_DEVICE_ID_BCM1250_HT,
 /*
  * Set the SP1011 HT/PCI bridge's TRDY timeout to the finite max.
  */
-static void __init quirk_sp1011(struct pci_dev *dev)
+static void __devinit quirk_sp1011(struct pci_dev *dev)
 {
         pci_write_config_byte(dev, 0x64, 0xff);
 }
diff --git a/arch/mips/pci/ops-tx4927.c b/arch/mips/pci/ops-tx4927.c
index a1e7e6d80c8c..bc13e29d2bb3 100644
--- a/arch/mips/pci/ops-tx4927.c
+++ b/arch/mips/pci/ops-tx4927.c
@@ -495,7 +495,7 @@ irqreturn_t tx4927_pcierr_interrupt(int irq, void *dev_id)
 }
 
 #ifdef CONFIG_TOSHIBA_FPCIB0
-static void __init tx4927_quirk_slc90e66_bridge(struct pci_dev *dev)
+static void __devinit tx4927_quirk_slc90e66_bridge(struct pci_dev *dev)
 {
         struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(dev->bus);
 
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c
index 0fbe4c0c170a..fdc24440294c 100644
--- a/arch/mips/pci/pci-ip27.c
+++ b/arch/mips/pci/pci-ip27.c
@@ -212,7 +212,7 @@ static inline void pci_enable_swapping(struct pci_dev *dev)
         bridge->b_widget.w_tflush;      /* Flush */
 }
 
-static void __init pci_fixup_ioc3(struct pci_dev *d)
+static void __devinit pci_fixup_ioc3(struct pci_dev *d)
 {
         pci_disable_swapping(d);
 }
diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c
index 1644805a6730..172af1cd5867 100644
--- a/arch/mips/pci/pci-xlr.c
+++ b/arch/mips/pci/pci-xlr.c
@@ -41,6 +41,7 @@
 #include <linux/irq.h>
 #include <linux/irqdesc.h>
 #include <linux/console.h>
+#include <linux/pci_regs.h>
 
 #include <asm/io.h>
 
@@ -156,35 +157,55 @@ struct pci_controller nlm_pci_controller = {
         .io_offset      = 0x00000000UL,
 };
 
+/*
+ * The top level PCIe links on the XLS PCIe controller appear as
+ * bridges. Given a device, this function finds which link it is
+ * on.
+ */
+static struct pci_dev *xls_get_pcie_link(const struct pci_dev *dev)
+{
+        struct pci_bus *bus, *p;
+
+        /* Find the bridge on bus 0 */
+        bus = dev->bus;
+        for (p = bus->parent; p && p->number != 0; p = p->parent)
+                bus = p;
+
+        return p ? bus->self : NULL;
+}
+
 static int get_irq_vector(const struct pci_dev *dev)
 {
+        struct pci_dev *lnk;
+
         if (!nlm_chip_is_xls())
-                return  PIC_PCIX_IRQ;   /* for XLR just one IRQ*/
+                return  PIC_PCIX_IRQ;   /* for XLR just one IRQ */
 
         /*
          * For XLS PCIe, there is an IRQ per Link, find out which
          * link the device is on to assign interrupts
-        */
-        if (dev->bus->self == NULL)
+         */
+        lnk = xls_get_pcie_link(dev);
+        if (lnk == NULL)
                 return 0;
 
-        switch  (dev->bus->self->devfn) {
-        case 0x0:
+        switch  (PCI_SLOT(lnk->devfn)) {
+        case 0:
                 return PIC_PCIE_LINK0_IRQ;
-        case 0x8:
+        case 1:
                 return PIC_PCIE_LINK1_IRQ;
-        case 0x10:
+        case 2:
                 if (nlm_chip_is_xls_b())
                         return PIC_PCIE_XLSB0_LINK2_IRQ;
                 else
                         return PIC_PCIE_LINK2_IRQ;
-        case 0x18:
+        case 3:
                 if (nlm_chip_is_xls_b())
                         return PIC_PCIE_XLSB0_LINK3_IRQ;
                 else
                         return PIC_PCIE_LINK3_IRQ;
         }
-        WARN(1, "Unexpected devfn %d\n", dev->bus->self->devfn);
+        WARN(1, "Unexpected devfn %d\n", lnk->devfn);
         return 0;
 }
 
@@ -202,7 +223,27 @@ void arch_teardown_msi_irq(unsigned int irq)
 int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
 {
         struct msi_msg msg;
+        struct pci_dev *lnk;
         int irq, ret;
+        u16 val;
+
+        /* MSI not supported on XLR */
+        if (!nlm_chip_is_xls())
+                return 1;
+
+        /*
+         * Enable MSI on the XLS PCIe controller bridge which was disabled
+         * at enumeration, the bridge MSI capability is at 0x50
+         */
+        lnk = xls_get_pcie_link(dev);
+        if (lnk == NULL)
+                return 1;
+
+        pci_read_config_word(lnk, 0x50 + PCI_MSI_FLAGS, &val);
+        if ((val & PCI_MSI_FLAGS_ENABLE) == 0) {
+                val |= PCI_MSI_FLAGS_ENABLE;
+                pci_write_config_word(lnk, 0x50 + PCI_MSI_FLAGS, val);
+        }
 
         irq = get_irq_vector(dev);
         if (irq <= 0)
@@ -327,7 +368,7 @@ static int __init pcibios_init(void)
                 }
         } else {
                 /* XLR PCI controller ACK */
-                irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, xlr_pci_ack);
+                irq_set_handler_data(PIC_PCIX_IRQ, xlr_pci_ack);
         }
 
         return 0;
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index b71fae231049..5edab2bc6fc0 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -115,11 +115,11 @@ static void yos_send_ipi_mask(const struct cpumask *mask, unsigned int action)
  */
 static void __cpuinit yos_init_secondary(void)
 {
-        set_c0_status(ST0_CO | ST0_IE | ST0_IM);
 }
 
 static void __cpuinit yos_smp_finish(void)
 {
+        set_c0_status(ST0_CO | ST0_IM | ST0_IE);
 }
 
 /* Hook for after all CPUs are online */
diff --git a/arch/mips/powertv/asic/asic-calliope.c b/arch/mips/powertv/asic/asic-calliope.c
index 0a170e0ffeaa..7773f3d956b0 100644
--- a/arch/mips/powertv/asic/asic-calliope.c
+++ b/arch/mips/powertv/asic/asic-calliope.c
@@ -28,7 +28,7 @@
 
 #define CALLIOPE_ADDR(x)        (CALLIOPE_IO_BASE + (x))
 
-const struct register_map calliope_register_map __initdata = {
+const struct register_map calliope_register_map __initconst = {
         .eic_slow0_strt_add = {.phys = CALLIOPE_ADDR(0x800000)},
         .eic_cfg_bits = {.phys = CALLIOPE_ADDR(0x800038)},
         .eic_ready_status = {.phys = CALLIOPE_ADDR(0x80004c)},
diff --git a/arch/mips/powertv/asic/asic-cronus.c b/arch/mips/powertv/asic/asic-cronus.c
index bbc0c122be5e..da076db7b7ed 100644
--- a/arch/mips/powertv/asic/asic-cronus.c
+++ b/arch/mips/powertv/asic/asic-cronus.c
@@ -28,7 +28,7 @@
 
 #define CRONUS_ADDR(x)  (CRONUS_IO_BASE + (x))
 
-const struct register_map cronus_register_map __initdata = {
+const struct register_map cronus_register_map __initconst = {
         .eic_slow0_strt_add = {.phys = CRONUS_ADDR(0x000000)},
         .eic_cfg_bits = {.phys = CRONUS_ADDR(0x000038)},
         .eic_ready_status = {.phys = CRONUS_ADDR(0x00004C)},
diff --git a/arch/mips/powertv/asic/asic-gaia.c b/arch/mips/powertv/asic/asic-gaia.c
index 91dda682752c..47683b370e74 100644
--- a/arch/mips/powertv/asic/asic-gaia.c
+++ b/arch/mips/powertv/asic/asic-gaia.c
@@ -23,7 +23,7 @@
 #include <linux/init.h>
 #include <asm/mach-powertv/asic.h>
 
-const struct register_map gaia_register_map __initdata = {
+const struct register_map gaia_register_map __initconst = {
         .eic_slow0_strt_add = {.phys = GAIA_IO_BASE + 0x000000},
         .eic_cfg_bits = {.phys = GAIA_IO_BASE + 0x000038},
         .eic_ready_status = {.phys = GAIA_IO_BASE + 0x00004C},
diff --git a/arch/mips/powertv/asic/asic-zeus.c b/arch/mips/powertv/asic/asic-zeus.c
index 4a05bb096476..6ff4b10f09da 100644
--- a/arch/mips/powertv/asic/asic-zeus.c
+++ b/arch/mips/powertv/asic/asic-zeus.c
@@ -28,7 +28,7 @@
 
 #define ZEUS_ADDR(x)    (ZEUS_IO_BASE + (x))
 
-const struct register_map zeus_register_map __initdata = {
+const struct register_map zeus_register_map __initconst = {
         .eic_slow0_strt_add = {.phys = ZEUS_ADDR(0x000000)},
         .eic_cfg_bits = {.phys = ZEUS_ADDR(0x000038)},
         .eic_ready_status = {.phys = ZEUS_ADDR(0x00004c)},
diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c
index 682efb0c108d..64eb71b15280 100644
--- a/arch/mips/txx9/generic/pci.c
+++ b/arch/mips/txx9/generic/pci.c
@@ -269,7 +269,7 @@ txx9_i8259_irq_setup(int irq)
         return err;
 }
 
-static void __init quirk_slc90e66_bridge(struct pci_dev *dev)
+static void __devinit quirk_slc90e66_bridge(struct pci_dev *dev)
 {
         int irq;        /* PCI/ISA Bridge interrupt */
         u8 reg_64;
diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index 6ab0bee2a54f..4d584ae29ae1 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -459,10 +459,11 @@ static int handle_signal(int sig,
         else
                 ret = setup_frame(sig, ka, oldset, regs);
         if (ret)
-                return;
+                return ret;
 
         signal_delivered(sig, info, ka, regs,
-                                 test_thread_flag(TIF_SINGLESTEP));
+                         test_thread_flag(TIF_SINGLESTEP));
+        return 0;
 }
 
 /*
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 090d35d36973..e62c223e4c45 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -876,9 +876,7 @@ static void __init smp_online(void)
 
         notify_cpu_starting(cpu);
 
-        ipi_call_lock();
         set_cpu_online(cpu, true);
-        ipi_call_unlock();
 
         local_irq_enable();
 }
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index a47828d31fe6..6266730efd61 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -300,9 +300,7 @@ smp_cpu_init(int cpunum)
 
         notify_cpu_starting(cpunum);
 
-        ipi_call_lock();
         set_cpu_online(cpunum, true);
-        ipi_call_unlock();
 
         /* Initialise the idle task for this CPU */
         atomic_inc(&init_mm.mm_count);
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index e4cb34322de4..e1417c42155c 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -571,7 +571,6 @@ void __devinit start_secondary(void *unused)
         if (system_state == SYSTEM_RUNNING)
                 vdso_data->processorCount++;
 #endif
-        ipi_call_lock();
         notify_cpu_starting(cpu);
         set_cpu_online(cpu, true);
         /* Update sibling maps */
@@ -601,7 +600,6 @@ void __devinit start_secondary(void *unused)
                 of_node_put(np);
         }
         of_node_put(l2_cache);
-        ipi_call_unlock();
 
         local_irq_enable();
 
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 15cca26ccb6c..8dca9c248ac7 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -717,9 +717,7 @@ static void __cpuinit smp_start_secondary(void *cpuvoid)
         init_cpu_vtimer();
         pfault_init();
         notify_cpu_starting(smp_processor_id());
-        ipi_call_lock();
         set_cpu_online(smp_processor_id(), true);
-        ipi_call_unlock();
         local_irq_enable();
         /* cpu_idle will call schedule for us */
         cpu_idle();
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index f591598d92f6..781bcb10b8bd 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -103,8 +103,6 @@ void __cpuinit smp_callin(void)
         if (cheetah_pcache_forced_on)
                 cheetah_enable_pcache();
 
-        local_irq_enable();
-
         callin_flag = 1;
         __asm__ __volatile__("membar #Sync\n\t"
                              "flush  %%g6" : : : "memory");
@@ -124,9 +122,8 @@ void __cpuinit smp_callin(void)
         while (!cpumask_test_cpu(cpuid, &smp_commenced_mask))
                 rmb();
 
-        ipi_call_lock_irq();
         set_cpu_online(cpuid, true);
-        ipi_call_unlock_irq();
+        local_irq_enable();
 
         /* idle thread is expected to have preempt disabled */
         preempt_disable();
@@ -1308,9 +1305,7 @@ int __cpu_disable(void)
         mdelay(1);
         local_irq_disable();
 
-        ipi_call_lock();
         set_cpu_online(cpu, false);
-        ipi_call_unlock();
 
         cpu_map_rebuild();
 
diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c
index 84873fbe8f27..e686c5ac90be 100644
--- a/arch/tile/kernel/smpboot.c
+++ b/arch/tile/kernel/smpboot.c
@@ -198,17 +198,7 @@ void __cpuinit online_secondary(void)
 
         notify_cpu_starting(smp_processor_id());
 
-        /*
-         * We need to hold call_lock, so there is no inconsistency
-         * between the time smp_call_function() determines number of
-         * IPI recipients, and the time when the determination is made
-         * for which cpus receive the IPI. Holding this
-         * lock helps us to not include this cpu in a currently in progress
-         * smp_call_function().
-         */
-        ipi_call_lock();
         set_cpu_online(smp_processor_id(), 1);
-        ipi_call_unlock();
         __get_cpu_var(cpu_state) = CPU_ONLINE;
 
         /* Set up tile-specific state for this cpu. */
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 1f2521434554..b0c5276861ec 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -49,6 +49,9 @@ else
         KBUILD_AFLAGS += -m64
         KBUILD_CFLAGS += -m64
 
+        # Use -mpreferred-stack-boundary=3 if supported.
+        KBUILD_CFLAGS += $(call cc-option,-mno-sse -mpreferred-stack-boundary=3)
+
         # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
         cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
         cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 49331bedc158..70780689599a 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -75,23 +75,54 @@ static inline int alternatives_text_reserved(void *start, void *end)
 }
 #endif  /* CONFIG_SMP */
 
+#define OLDINSTR(oldinstr)      "661:\n\t" oldinstr "\n662:\n"
+
+#define b_replacement(number)   "663"#number
+#define e_replacement(number)   "664"#number
+
+#define alt_slen "662b-661b"
+#define alt_rlen(number) e_replacement(number)"f-"b_replacement(number)"f"
+
+#define ALTINSTR_ENTRY(feature, number)                                       \
+        " .long 661b - .\n"                             /* label           */ \
+        " .long " b_replacement(number)"f - .\n"        /* new instruction */ \
+        " .word " __stringify(feature) "\n"             /* feature bit     */ \
+        " .byte " alt_slen "\n"                         /* source len      */ \
+        " .byte " alt_rlen(number) "\n"                 /* replacement len */
+
+#define DISCARD_ENTRY(number)                           /* rlen <= slen */    \
+        " .byte 0xff + (" alt_rlen(number) ") - (" alt_slen ")\n"
+
+#define ALTINSTR_REPLACEMENT(newinstr, feature, number) /* replacement */     \
+        b_replacement(number)":\n\t" newinstr "\n" e_replacement(number) ":\n\t"
+
 /* alternative assembly primitive: */
 #define ALTERNATIVE(oldinstr, newinstr, feature)                        \
-                                                                        \
-      "661:\n\t" oldinstr "\n662:\n"                                    \
-      ".section .altinstructions,\"a\"\n"                               \
-      "  .long 661b - .\n"                      /* label           */   \
-      "  .long 663f - .\n"                      /* new instruction */   \
-      "  .word " __stringify(feature) "\n"      /* feature bit     */   \
-      "  .byte 662b-661b\n"                     /* sourcelen       */   \
-      "  .byte 664f-663f\n"                     /* replacementlen  */   \
-      ".previous\n"                                                     \
-      ".section .discard,\"aw\",@progbits\n"                            \
-      "  .byte 0xff + (664f-663f) - (662b-661b)\n" /* rlen <= slen */   \
-      ".previous\n"                                                     \
-      ".section .altinstr_replacement, \"ax\"\n"                        \
-      "663:\n\t" newinstr "\n664:\n"            /* replacement     */   \
-      ".previous"
+        OLDINSTR(oldinstr)                                              \
+        ".section .altinstructions,\"a\"\n"                             \
+        ALTINSTR_ENTRY(feature, 1)                                      \
+        ".previous\n"                                                   \
+        ".section .discard,\"aw\",@progbits\n"                          \
+        DISCARD_ENTRY(1)                                                \
+        ".previous\n"                                                   \
+        ".section .altinstr_replacement, \"ax\"\n"                      \
+        ALTINSTR_REPLACEMENT(newinstr, feature, 1)                      \
+        ".previous"
+
+#define ALTERNATIVE_2(oldinstr, newinstr1, feature1, newinstr2, feature2)\
+        OLDINSTR(oldinstr)                                              \
+        ".section .altinstructions,\"a\"\n"                             \
+        ALTINSTR_ENTRY(feature1, 1)                                     \
+        ALTINSTR_ENTRY(feature2, 2)                                     \
+        ".previous\n"                                                   \
+        ".section .discard,\"aw\",@progbits\n"                          \
+        DISCARD_ENTRY(1)                                                \
+        DISCARD_ENTRY(2)                                                \
+        ".previous\n"                                                   \
+        ".section .altinstr_replacement, \"ax\"\n"                      \
+        ALTINSTR_REPLACEMENT(newinstr1, feature1, 1)                    \
+        ALTINSTR_REPLACEMENT(newinstr2, feature2, 2)                    \
+        ".previous"
 
 /*
  * This must be included *after* the definition of ALTERNATIVE due to
@@ -140,6 +171,19 @@ static inline int alternatives_text_reserved(void *start, void *end)
                 : output : [old] "i" (oldfunc), [new] "i" (newfunc), ## input)
 
 /*
+ * Like alternative_call, but there are two features and respective functions.
+ * If CPU has feature2, function2 is used.
+ * Otherwise, if CPU has feature1, function1 is used.
+ * Otherwise, old function is used.
+ */
+#define alternative_call_2(oldfunc, newfunc1, feature1, newfunc2, feature2,   \
+                           output, input...)                                  \
+        asm volatile (ALTERNATIVE_2("call %P[old]", "call %P[new1]", feature1,\
+                "call %P[new2]", feature2)                                    \
+                : output : [old] "i" (oldfunc), [new1] "i" (newfunc1),        \
+                [new2] "i" (newfunc2), ## input)
+
+/*
  * use this macro(s) if you need more than one output parameter
  * in alternative_io
  */
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index eaff4790ed96..88093c1d44fd 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -306,7 +306,8 @@ struct apic {
         unsigned long (*check_apicid_used)(physid_mask_t *map, int apicid);
         unsigned long (*check_apicid_present)(int apicid);
 
-        void (*vector_allocation_domain)(int cpu, struct cpumask *retmask);
+        void (*vector_allocation_domain)(int cpu, struct cpumask *retmask,
+                                         const struct cpumask *mask);
         void (*init_apic_ldr)(void);
 
         void (*ioapic_phys_id_map)(physid_mask_t *phys_map, physid_mask_t *retmap);
@@ -331,9 +332,9 @@ struct apic {
         unsigned long (*set_apic_id)(unsigned int id);
         unsigned long apic_id_mask;
 
-        unsigned int (*cpu_mask_to_apicid)(const struct cpumask *cpumask);
-        unsigned int (*cpu_mask_to_apicid_and)(const struct cpumask *cpumask,
-                                               const struct cpumask *andmask);
+        int (*cpu_mask_to_apicid_and)(const struct cpumask *cpumask,
+                                      const struct cpumask *andmask,
+                                      unsigned int *apicid);
 
         /* ipi */
         void (*send_IPI_mask)(const struct cpumask *mask, int vector);
@@ -537,6 +538,11 @@ static inline const struct cpumask *default_target_cpus(void)
 #endif
 }
 
+static inline const struct cpumask *online_target_cpus(void)
+{
+        return cpu_online_mask;
+}
+
 DECLARE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid);
 
 
@@ -586,21 +592,50 @@ static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
 
 #endif
 
-static inline unsigned int
-default_cpu_mask_to_apicid(const struct cpumask *cpumask)
+static inline int
+flat_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+                            const struct cpumask *andmask,
+                            unsigned int *apicid)
 {
-        return cpumask_bits(cpumask)[0] & APIC_ALL_CPUS;
+        unsigned long cpu_mask = cpumask_bits(cpumask)[0] &
+                                 cpumask_bits(andmask)[0] &
+                                 cpumask_bits(cpu_online_mask)[0] &
+                                 APIC_ALL_CPUS;
+
+        if (likely(cpu_mask)) {
+                *apicid = (unsigned int)cpu_mask;
+                return 0;
+        } else {
+                return -EINVAL;
+        }
 }
 
-static inline unsigned int
+extern int
 default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-                               const struct cpumask *andmask)
+                               const struct cpumask *andmask,
+                               unsigned int *apicid);
+
+static inline void
+flat_vector_allocation_domain(int cpu, struct cpumask *retmask,
+                              const struct cpumask *mask)
 {
-        unsigned long mask1 = cpumask_bits(cpumask)[0];
-        unsigned long mask2 = cpumask_bits(andmask)[0];
-        unsigned long mask3 = cpumask_bits(cpu_online_mask)[0];
+        /* Careful. Some cpus do not strictly honor the set of cpus
+         * specified in the interrupt destination when using lowest
+         * priority interrupt delivery mode.
+         *
+         * In particular there was a hyperthreading cpu observed to
+         * deliver interrupts to the wrong hyperthread when only one
+         * hyperthread was specified in the interrupt desitination.
+         */
+        cpumask_clear(retmask);
+        cpumask_bits(retmask)[0] = APIC_ALL_CPUS;
+}
 
-        return (unsigned int)(mask1 & mask2 & mask3);
+static inline void
+default_vector_allocation_domain(int cpu, struct cpumask *retmask,
+                                 const struct cpumask *mask)
+{
+        cpumask_copy(retmask, cpumask_of(cpu));
 }
 
 static inline unsigned long default_check_apicid_used(physid_mask_t *map, int apicid)
diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
index cc70c1c78ca4..75ce3f47d204 100644
--- a/arch/x86/include/asm/emergency-restart.h
+++ b/arch/x86/include/asm/emergency-restart.h
@@ -4,9 +4,7 @@
 enum reboot_type {
         BOOT_TRIPLE = 't',
         BOOT_KBD = 'k',
-#ifdef CONFIG_X86_32
         BOOT_BIOS = 'b',
-#endif
         BOOT_ACPI = 'a',
         BOOT_EFI = 'e',
         BOOT_CF9 = 'p',
diff --git a/arch/x86/include/asm/floppy.h b/arch/x86/include/asm/floppy.h
index dbe82a5c5eac..d3d74698dce9 100644
--- a/arch/x86/include/asm/floppy.h
+++ b/arch/x86/include/asm/floppy.h
@@ -99,7 +99,7 @@ static irqreturn_t floppy_hardint(int irq, void *dev_id)
                 virtual_dma_residue += virtual_dma_count;
                 virtual_dma_count = 0;
 #ifdef TRACE_FLPY_INT
-                printk("count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
+                printk(KERN_DEBUG "count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
                        virtual_dma_count, virtual_dma_residue, calls, bytes,
                        dma_wait);
                 calls = 0;
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index db7c1f2709a2..2da88c0cda14 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -313,8 +313,8 @@ struct kvm_pmu {
         u64 counter_bitmask[2];
         u64 global_ctrl_mask;
         u8 version;
-        struct kvm_pmc gp_counters[X86_PMC_MAX_GENERIC];
-        struct kvm_pmc fixed_counters[X86_PMC_MAX_FIXED];
+        struct kvm_pmc gp_counters[INTEL_PMC_MAX_GENERIC];
+        struct kvm_pmc fixed_counters[INTEL_PMC_MAX_FIXED];
         struct irq_work irq_work;
         u64 reprogram_pmi;
 };
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 084ef95274cd..813ed103f45e 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -115,8 +115,8 @@ notrace static inline int native_write_msr_safe(unsigned int msr,
 
 extern unsigned long long native_read_tsc(void);
 
-extern int native_rdmsr_safe_regs(u32 regs[8]);
-extern int native_wrmsr_safe_regs(u32 regs[8]);
+extern int rdmsr_safe_regs(u32 regs[8]);
+extern int wrmsr_safe_regs(u32 regs[8]);
 
 static __always_inline unsigned long long __native_read_tsc(void)
 {
@@ -187,43 +187,6 @@ static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
         return err;
 }
 
-static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
-{
-        u32 gprs[8] = { 0 };
-        int err;
-
-        gprs[1] = msr;
-        gprs[7] = 0x9c5a203a;
-
-        err = native_rdmsr_safe_regs(gprs);
-
-        *p = gprs[0] | ((u64)gprs[2] << 32);
-
-        return err;
-}
-
-static inline int wrmsrl_amd_safe(unsigned msr, unsigned long long val)
-{
-        u32 gprs[8] = { 0 };
-
-        gprs[0] = (u32)val;
-        gprs[1] = msr;
-        gprs[2] = val >> 32;
-        gprs[7] = 0x9c5a203a;
-
-        return native_wrmsr_safe_regs(gprs);
-}
-
-static inline int rdmsr_safe_regs(u32 regs[8])
-{
-        return native_rdmsr_safe_regs(regs);
-}
-
-static inline int wrmsr_safe_regs(u32 regs[8])
-{
-        return native_wrmsr_safe_regs(regs);
-}
-
 #define rdtscl(low)                                             \
         ((low) = (u32)__native_read_tsc())
 
@@ -237,6 +200,8 @@ do {							\
         (high) = (u32)(_l >> 32);                       \
 } while (0)
 
+#define rdpmcl(counter, val) ((val) = native_read_pmc(counter))
+
 #define rdtscp(low, high, aux)                                  \
 do {                                                            \
         unsigned long long _val = native_read_tscp(&(aux));     \
@@ -248,8 +213,7 @@ do {                                                            \
 
 #endif  /* !CONFIG_PARAVIRT */
 
-
-#define checking_wrmsrl(msr, val) wrmsr_safe((msr), (u32)(val),         \
+#define wrmsrl_safe(msr, val) wrmsr_safe((msr), (u32)(val),             \
                                              (u32)((val) >> 32))
 
 #define write_tsc(val1, val2) wrmsr(MSR_IA32_TSC, (val1), (val2))
diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index dc580c42851c..c0fa356e90de 100644
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -44,28 +44,14 @@ struct nmiaction {
         const char              *name;
 };
 
-#define register_nmi_handler(t, fn, fg, n)              \
+#define register_nmi_handler(t, fn, fg, n, init...)     \
 ({                                                      \
-        static struct nmiaction fn##_na = {             \
+        static struct nmiaction init fn##_na = {        \
                 .handler = (fn),                        \
                 .name = (n),                            \
                 .flags = (fg),                          \
         };                                              \
-        __register_nmi_handler((t), &fn##_na);  \
-})
-
-/*
- * For special handlers that register/unregister in the
- * init section only.  This should be considered rare.
- */
-#define register_nmi_handler_initonly(t, fn, fg, n)             \
-({                                                      \
-        static struct nmiaction fn##_na __initdata = {          \
-                .handler = (fn),                        \
-                .name = (n),                            \
-                .flags = (fg),                          \
-        };                                              \
-        __register_nmi_handler((t), &fn##_na);  \
+        __register_nmi_handler((t), &fn##_na);          \
 })
 
 int __register_nmi_handler(unsigned int, struct nmiaction *);
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 6cbbabf52707..0b47ddb6f00b 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -128,21 +128,11 @@ static inline u64 paravirt_read_msr(unsigned msr, int *err)
         return PVOP_CALL2(u64, pv_cpu_ops.read_msr, msr, err);
 }
 
-static inline int paravirt_rdmsr_regs(u32 *regs)
-{
-        return PVOP_CALL1(int, pv_cpu_ops.rdmsr_regs, regs);
-}
-
 static inline int paravirt_write_msr(unsigned msr, unsigned low, unsigned high)
 {
         return PVOP_CALL3(int, pv_cpu_ops.write_msr, msr, low, high);
 }
 
-static inline int paravirt_wrmsr_regs(u32 *regs)
-{
-        return PVOP_CALL1(int, pv_cpu_ops.wrmsr_regs, regs);
-}
-
 /* These should all do BUG_ON(_err), but our headers are too tangled. */
 #define rdmsr(msr, val1, val2)                  \
 do {                                            \
@@ -176,9 +166,6 @@ do {						\
         _err;                                   \
 })
 
-#define rdmsr_safe_regs(regs)   paravirt_rdmsr_regs(regs)
-#define wrmsr_safe_regs(regs)   paravirt_wrmsr_regs(regs)
-
 static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
 {
         int err;
@@ -186,32 +173,6 @@ static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
         *p = paravirt_read_msr(msr, &err);
         return err;
 }
-static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
-{
-        u32 gprs[8] = { 0 };
-        int err;
-
-        gprs[1] = msr;
-        gprs[7] = 0x9c5a203a;
-
-        err = paravirt_rdmsr_regs(gprs);
-
-        *p = gprs[0] | ((u64)gprs[2] << 32);
-
-        return err;
-}
-
-static inline int wrmsrl_amd_safe(unsigned msr, unsigned long long val)
-{
-        u32 gprs[8] = { 0 };
-
-        gprs[0] = (u32)val;
-        gprs[1] = msr;
-        gprs[2] = val >> 32;
-        gprs[7] = 0x9c5a203a;
-
-        return paravirt_wrmsr_regs(gprs);
-}
 
 static inline u64 paravirt_read_tsc(void)
 {
@@ -252,6 +213,8 @@ do {						\
         high = _l >> 32;                        \
 } while (0)
 
+#define rdpmcl(counter, val) ((val) = paravirt_read_pmc(counter))
+
 static inline unsigned long long paravirt_rdtscp(unsigned int *aux)
 {
         return PVOP_CALL1(u64, pv_cpu_ops.read_tscp, aux);
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 8e8b9a4987ee..8613cbb7ba41 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -153,9 +153,7 @@ struct pv_cpu_ops {
         /* MSR, PMC and TSR operations.
            err = 0/-EFAULT.  wrmsr returns 0/-EFAULT. */
         u64 (*read_msr)(unsigned int msr, int *err);
-        int (*rdmsr_regs)(u32 *regs);
         int (*write_msr)(unsigned int msr, unsigned low, unsigned high);
-        int (*wrmsr_regs)(u32 *regs);
 
         u64 (*read_tsc)(void);
         u64 (*read_pmc)(int counter);
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index b3a531746026..5ad24a89b19b 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -7,9 +7,13 @@
 #undef DEBUG
 
 #ifdef DEBUG
-#define DBG(x...) printk(x)
+#define DBG(fmt, ...) printk(fmt, ##__VA_ARGS__)
 #else
-#define DBG(x...)
+#define DBG(fmt, ...)                           \
+do {                                            \
+        if (0)                                  \
+                printk(fmt, ##__VA_ARGS__);     \
+} while (0)
 #endif
 
 #define PCI_PROBE_BIOS          0x0001
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index 588f52ea810e..c78f14a0df00 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -5,11 +5,10 @@
  * Performance event hw details:
  */
 
-#define X86_PMC_MAX_GENERIC                                    32
-#define X86_PMC_MAX_FIXED                                       3
+#define INTEL_PMC_MAX_GENERIC                                  32
+#define INTEL_PMC_MAX_FIXED                                     3
+#define INTEL_PMC_IDX_FIXED                                    32
 
-#define X86_PMC_IDX_GENERIC                                     0
-#define X86_PMC_IDX_FIXED                                      32
 #define X86_PMC_IDX_MAX                                        64
 
 #define MSR_ARCH_PERFMON_PERFCTR0                             0xc1
@@ -48,8 +47,7 @@
         (X86_RAW_EVENT_MASK          |  \
          AMD64_EVENTSEL_EVENT)
 #define AMD64_NUM_COUNTERS                              4
-#define AMD64_NUM_COUNTERS_F15H                         6
-#define AMD64_NUM_COUNTERS_MAX                          AMD64_NUM_COUNTERS_F15H
+#define AMD64_NUM_COUNTERS_CORE                         6
 
 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL           0x3c
 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK         (0x00 << 8)
@@ -121,16 +119,16 @@ struct x86_pmu_capability {
 
 /* Instr_Retired.Any: */
 #define MSR_ARCH_PERFMON_FIXED_CTR0     0x309
-#define X86_PMC_IDX_FIXED_INSTRUCTIONS  (X86_PMC_IDX_FIXED + 0)
+#define INTEL_PMC_IDX_FIXED_INSTRUCTIONS        (INTEL_PMC_IDX_FIXED + 0)
 
 /* CPU_CLK_Unhalted.Core: */
 #define MSR_ARCH_PERFMON_FIXED_CTR1     0x30a
-#define X86_PMC_IDX_FIXED_CPU_CYCLES    (X86_PMC_IDX_FIXED + 1)
+#define INTEL_PMC_IDX_FIXED_CPU_CYCLES  (INTEL_PMC_IDX_FIXED + 1)
 
 /* CPU_CLK_Unhalted.Ref: */
 #define MSR_ARCH_PERFMON_FIXED_CTR2     0x30b
-#define X86_PMC_IDX_FIXED_REF_CYCLES    (X86_PMC_IDX_FIXED + 2)
-#define X86_PMC_MSK_FIXED_REF_CYCLES    (1ULL << X86_PMC_IDX_FIXED_REF_CYCLES)
+#define INTEL_PMC_IDX_FIXED_REF_CYCLES  (INTEL_PMC_IDX_FIXED + 2)
+#define INTEL_PMC_MSK_FIXED_REF_CYCLES  (1ULL << INTEL_PMC_IDX_FIXED_REF_CYCLES)
 
 /*
  * We model BTS tracing as another fixed-mode PMC.
@@ -139,7 +137,7 @@ struct x86_pmu_capability {
  * values are used by actual fixed events and higher values are used
  * to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr.
  */
-#define X86_PMC_IDX_FIXED_BTS                           (X86_PMC_IDX_FIXED + 16)
+#define INTEL_PMC_IDX_FIXED_BTS                         (INTEL_PMC_IDX_FIXED + 16)
 
 /*
  * IBS cpuid feature detection
@@ -234,6 +232,7 @@ struct perf_guest_switch_msr {
 
 extern struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr);
 extern void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap);
+extern void perf_check_microcode(void);
 #else
 static inline perf_guest_switch_msr *perf_guest_get_msrs(int *nr)
 {
@@ -247,6 +246,7 @@ static inline void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap)
 }
 
 static inline void perf_events_lapic_init(void) { }
+static inline void perf_check_microcode(void) { }
 #endif
 
 #if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_AMD)
diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
index 98391db840c6..f2b489cf1602 100644
--- a/arch/x86/include/asm/pgtable-2level.h
+++ b/arch/x86/include/asm/pgtable-2level.h
@@ -2,9 +2,9 @@
 #define _ASM_X86_PGTABLE_2LEVEL_H
 
 #define pte_ERROR(e) \
-        printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, (e).pte_low)
+        pr_err("%s:%d: bad pte %08lx\n", __FILE__, __LINE__, (e).pte_low)
 #define pgd_ERROR(e) \
-        printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
+        pr_err("%s:%d: bad pgd %08lx\n", __FILE__, __LINE__, pgd_val(e))
 
 /*
  * Certain architectures need to do special things when PTEs
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index cb00ccc7d571..4cc9f2b7cdc3 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -9,13 +9,13 @@
  */
 
 #define pte_ERROR(e)                                                    \
-        printk("%s:%d: bad pte %p(%08lx%08lx).\n",                      \
+        pr_err("%s:%d: bad pte %p(%08lx%08lx)\n",                       \
                __FILE__, __LINE__, &(e), (e).pte_high, (e).pte_low)
 #define pmd_ERROR(e)                                                    \
-        printk("%s:%d: bad pmd %p(%016Lx).\n",                          \
+        pr_err("%s:%d: bad pmd %p(%016Lx)\n",                           \
                __FILE__, __LINE__, &(e), pmd_val(e))
 #define pgd_ERROR(e)                                                    \
-        printk("%s:%d: bad pgd %p(%016Lx).\n",                          \
+        pr_err("%s:%d: bad pgd %p(%016Lx)\n",                           \
                __FILE__, __LINE__, &(e), pgd_val(e))
 
 /* Rules for using set_pte: the pte being assigned *must* be
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 975f709e09ae..8251be02301e 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -26,16 +26,16 @@ extern pgd_t init_level4_pgt[];
 extern void paging_init(void);
 
 #define pte_ERROR(e)                                    \
-        printk("%s:%d: bad pte %p(%016lx).\n",          \
+        pr_err("%s:%d: bad pte %p(%016lx)\n",           \
                __FILE__, __LINE__, &(e), pte_val(e))
 #define pmd_ERROR(e)                                    \
-        printk("%s:%d: bad pmd %p(%016lx).\n",          \
+        pr_err("%s:%d: bad pmd %p(%016lx)\n",           \
                __FILE__, __LINE__, &(e), pmd_val(e))
 #define pud_ERROR(e)                                    \
-        printk("%s:%d: bad pud %p(%016lx).\n",          \
+        pr_err("%s:%d: bad pud %p(%016lx)\n",           \
                __FILE__, __LINE__, &(e), pud_val(e))
 #define pgd_ERROR(e)                                    \
-        printk("%s:%d: bad pgd %p(%016lx).\n",          \
+        pr_err("%s:%d: bad pgd %p(%016lx)\n",           \
                __FILE__, __LINE__, &(e), pgd_val(e))
 
 struct mm_struct;
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index fce3f4ae5bd6..fe1ec5bcd846 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -21,8 +21,9 @@ struct real_mode_header {
         u32     wakeup_header;
 #endif
         /* APM/BIOS reboot */
-#ifdef CONFIG_X86_32
         u32     machine_real_restart_asm;
+#ifdef CONFIG_X86_64
+        u32     machine_real_restart_seg;
 #endif
 };
 
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index 92f297069e87..a82c4f1b4d83 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -18,8 +18,8 @@ extern struct machine_ops machine_ops;
 
 void native_machine_crash_shutdown(struct pt_regs *regs);
 void native_machine_shutdown(void);
-void machine_real_restart(unsigned int type);
-/* These must match dispatch_table in reboot_32.S */
+void __noreturn machine_real_restart(unsigned int type);
+/* These must match dispatch in arch/x86/realmore/rm/reboot.S */
 #define MRR_BIOS        0
 #define MRR_APM         1
 
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index f48394513c37..2ffa95dc2333 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -169,11 +169,6 @@ void x86_idle_thread_init(unsigned int cpu, struct task_struct *idle);
 void smp_store_cpu_info(int id);
 #define cpu_physical_id(cpu)    per_cpu(x86_cpu_to_apicid, cpu)
 
-/* We don't mark CPUs online until __cpu_up(), so we need another measure */
-static inline int num_booting_cpus(void)
-{
-        return cpumask_weight(cpu_callout_mask);
-}
 #else /* !CONFIG_SMP */
 #define wbinvd_on_cpu(cpu)     wbinvd()
 static inline int wbinvd_on_all_cpus(void)
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 8e796fbbf9c6..d8def8b3dba0 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -17,6 +17,8 @@
 
 /* Handles exceptions in both to and from, but doesn't do access_ok */
 __must_check unsigned long
+copy_user_enhanced_fast_string(void *to, const void *from, unsigned len);
+__must_check unsigned long
 copy_user_generic_string(void *to, const void *from, unsigned len);
 __must_check unsigned long
 copy_user_generic_unrolled(void *to, const void *from, unsigned len);
@@ -26,9 +28,16 @@ copy_user_generic(void *to, const void *from, unsigned len)
 {
         unsigned ret;
 
-        alternative_call(copy_user_generic_unrolled,
+        /*
+         * If CPU has ERMS feature, use copy_user_enhanced_fast_string.
+         * Otherwise, if CPU has rep_good feature, use copy_user_generic_string.
+         * Otherwise, use copy_user_generic_unrolled.
+         */
+        alternative_call_2(copy_user_generic_unrolled,
                          copy_user_generic_string,
                          X86_FEATURE_REP_GOOD,
+                         copy_user_enhanced_fast_string,
+                         X86_FEATURE_ERMS,
                          ASM_OUTPUT2("=a" (ret), "=D" (to), "=S" (from),
                                      "=d" (len)),
                          "1" (to), "2" (from), "3" (len)
diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h
index 1e9bed14f7ae..f3971bbcd1de 100644
--- a/arch/x86/include/asm/uprobes.h
+++ b/arch/x86/include/asm/uprobes.h
@@ -48,7 +48,7 @@ struct arch_uprobe_task {
 #endif
 };
 
-extern int  arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm);
+extern int  arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr);
 extern int  arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
 extern int  arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
 extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h
index 6149b476d9df..a06983cdc125 100644
--- a/arch/x86/include/asm/uv/uv_bau.h
+++ b/arch/x86/include/asm/uv/uv_bau.h
@@ -140,6 +140,9 @@
 #define IPI_RESET_LIMIT                 1
 /* after this # consecutive successes, bump up the throttle if it was lowered */
 #define COMPLETE_THRESHOLD              5
+/* after this # of giveups (fall back to kernel IPI's) disable the use of
+   the BAU for a period of time */
+#define GIVEUP_LIMIT                    100
 
 #define UV_LB_SUBNODEID                 0x10
 
@@ -166,7 +169,6 @@
 #define FLUSH_RETRY_TIMEOUT             2
 #define FLUSH_GIVEUP                    3
 #define FLUSH_COMPLETE                  4
-#define FLUSH_RETRY_BUSYBUG             5
 
 /*
  * tuning the action when the numalink network is extremely delayed
@@ -175,7 +177,7 @@
                                                    microseconds */
 #define CONGESTED_REPS                  10      /* long delays averaged over
                                                    this many broadcasts */
-#define CONGESTED_PERIOD                30      /* time for the bau to be
+#define DISABLED_PERIOD                 10      /* time for the bau to be
                                                    disabled, in seconds */
 /* see msg_type: */
 #define MSG_NOOP                        0
@@ -520,6 +522,12 @@ struct ptc_stats {
         unsigned long   s_uv2_wars;             /* uv2 workaround, perm. busy */
         unsigned long   s_uv2_wars_hw;          /* uv2 workaround, hiwater */
         unsigned long   s_uv2_war_waits;        /* uv2 workaround, long waits */
+        unsigned long   s_overipilimit;         /* over the ipi reset limit */
+        unsigned long   s_giveuplimit;          /* disables, over giveup limit*/
+        unsigned long   s_enters;               /* entries to the driver */
+        unsigned long   s_ipifordisabled;       /* fall back to IPI; disabled */
+        unsigned long   s_plugged;              /* plugged by h/w bug*/
+        unsigned long   s_congested;            /* giveup on long wait */
         /* destination statistics */
         unsigned long   d_alltlb;               /* times all tlb's on this
                                                    cpu were flushed */
@@ -586,8 +594,8 @@ struct bau_control {
         int                     timeout_tries;
         int                     ipi_attempts;
         int                     conseccompletes;
-        int                     baudisabled;
-        int                     set_bau_off;
+        short                   nobau;
+        short                   baudisabled;
         short                   cpu;
         short                   osnode;
         short                   uvhub_cpu;
@@ -596,14 +604,16 @@ struct bau_control {
         short                   cpus_in_socket;
         short                   cpus_in_uvhub;
         short                   partition_base_pnode;
-        short                   using_desc; /* an index, like uvhub_cpu */
-        unsigned int            inuse_map;
+        short                   busy;       /* all were busy (war) */
         unsigned short          message_number;
         unsigned short          uvhub_quiesce;
         short                   socket_acknowledge_count[DEST_Q_SIZE];
         cycles_t                send_message;
+        cycles_t                period_end;
+        cycles_t                period_time;
         spinlock_t              uvhub_lock;
         spinlock_t              queue_lock;
+        spinlock_t              disable_lock;
         /* tunables */
         int                     max_concurr;
         int                     max_concurr_const;
@@ -614,9 +624,9 @@ struct bau_control {
         int                     complete_threshold;
         int                     cong_response_us;
         int                     cong_reps;
-        int                     cong_period;
-        unsigned long           clocks_per_100_usec;
-        cycles_t                period_time;
+        cycles_t                disabled_period;
+        int                     period_giveups;
+        int                     giveup_limit;
         long                    period_requests;
         struct hub_and_pnode    *thp;
 };
diff --git a/arch/x86/include/asm/x2apic.h b/arch/x86/include/asm/x2apic.h
index 92e54abf89e0..f90f0a587c66 100644
--- a/arch/x86/include/asm/x2apic.h
+++ b/arch/x86/include/asm/x2apic.h
@@ -9,15 +9,6 @@
 #include <asm/ipi.h>
 #include <linux/cpumask.h>
 
-/*
- * Need to use more than cpu 0, because we need more vectors
- * when MSI-X are used.
- */
-static const struct cpumask *x2apic_target_cpus(void)
-{
-        return cpu_online_mask;
-}
-
 static int x2apic_apic_id_valid(int apicid)
 {
         return 1;
@@ -28,15 +19,6 @@ static int x2apic_apic_id_registered(void)
         return 1;
 }
 
-/*
- * For now each logical cpu is in its own vector allocation domain.
- */
-static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        cpumask_clear(retmask);
-        cpumask_set_cpu(cpu, retmask);
-}
-
 static void
 __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest)
 {
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index c090af10ac7d..38155f667144 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -156,7 +156,6 @@ struct x86_cpuinit_ops {
 /**
  * struct x86_platform_ops - platform specific runtime functions
  * @calibrate_tsc:              calibrate TSC
- * @wallclock_init:             init the wallclock device
  * @get_wallclock:              get time from HW clock like RTC etc.
  * @set_wallclock:              set time back to HW clock
  * @is_untracked_pat_range      exclude from PAT logic
@@ -164,10 +163,10 @@ struct x86_cpuinit_ops {
  * @i8042_detect                pre-detect if i8042 controller exists
  * @save_sched_clock_state:     save state for sched_clock() on suspend
  * @restore_sched_clock_state:  restore state for sched_clock() on resume
+ * @apic_post_init:             adjust apic if neeeded
  */
 struct x86_platform_ops {
         unsigned long (*calibrate_tsc)(void);
-        void (*wallclock_init)(void);
         unsigned long (*get_wallclock)(void);
         int (*set_wallclock)(unsigned long nowtime);
         void (*iommu_shutdown)(void);
@@ -177,6 +176,7 @@ struct x86_platform_ops {
         int (*i8042_detect)(void);
         void (*save_sched_clock_state)(void);
         void (*restore_sched_clock_state)(void);
+        void (*apic_post_init)(void);
 };
 
 struct pci_dev;
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 1f84794f0759..931280ff8299 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -1,3 +1,5 @@
+#define pr_fmt(fmt) "SMP alternatives: " fmt
+
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/mutex.h>
@@ -63,8 +65,11 @@ static int __init setup_noreplace_paravirt(char *str)
 __setup("noreplace-paravirt", setup_noreplace_paravirt);
 #endif
 
-#define DPRINTK(fmt, args...) if (debug_alternative) \
-        printk(KERN_DEBUG fmt, args)
+#define DPRINTK(fmt, ...)                               \
+do {                                                    \
+        if (debug_alternative)                          \
+                printk(KERN_DEBUG fmt, ##__VA_ARGS__);  \
+} while (0)
 
 /*
  * Each GENERIC_NOPX is of X bytes, and defined as an array of bytes
@@ -428,7 +433,7 @@ void alternatives_smp_switch(int smp)
          * If this still occurs then you should see a hang
          * or crash shortly after this line:
          */
-        printk("lockdep: fixing up alternatives.\n");
+        pr_info("lockdep: fixing up alternatives\n");
 #endif
 
         if (noreplace_smp || smp_alt_once || skip_smp_alternatives)
@@ -444,14 +449,14 @@ void alternatives_smp_switch(int smp)
         if (smp == smp_mode) {
                 /* nothing */
         } else if (smp) {
-                printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
+                pr_info("switching to SMP code\n");
                 clear_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
                 clear_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
                 list_for_each_entry(mod, &smp_alt_modules, next)
                         alternatives_smp_lock(mod->locks, mod->locks_end,
                                               mod->text, mod->text_end);
         } else {
-                printk(KERN_INFO "SMP alternatives: switching to UP code\n");
+                pr_info("switching to UP code\n");
                 set_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
                 set_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
                 list_for_each_entry(mod, &smp_alt_modules, next)
@@ -546,7 +551,7 @@ void __init alternative_instructions(void)
 #ifdef CONFIG_SMP
         if (smp_alt_once) {
                 if (1 == num_possible_cpus()) {
-                        printk(KERN_INFO "SMP alternatives: switching to UP code\n");
+                        pr_info("switching to UP code\n");
                         set_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
                         set_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
 
@@ -664,7 +669,7 @@ static int __kprobes stop_machine_text_poke(void *data)
         struct text_poke_param *p;
         int i;
 
-        if (atomic_dec_and_test(&stop_machine_first)) {
+        if (atomic_xchg(&stop_machine_first, 0)) {
                 for (i = 0; i < tpp->nparams; i++) {
                         p = &tpp->params[i];
                         text_poke(p->addr, p->opcode, p->len);
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index be16854591cc..f29f6dd6bc08 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -2,6 +2,9 @@
  * Shared support code for AMD K8 northbridges and derivates.
  * Copyright 2006 Andi Kleen, SUSE Labs. Subject to GPLv2.
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/init.h>
@@ -258,7 +261,7 @@ void amd_flush_garts(void)
         }
         spin_unlock_irqrestore(&gart_lock, flags);
         if (!flushed)
-                printk("nothing to flush?\n");
+                pr_notice("nothing to flush?\n");
 }
 EXPORT_SYMBOL_GPL(amd_flush_garts);
 
@@ -269,11 +272,10 @@ static __init int init_amd_nbs(void)
         err = amd_cache_northbridges();
 
         if (err < 0)
-                printk(KERN_NOTICE "AMD NB: Cannot enumerate AMD northbridges.\n");
+                pr_notice("Cannot enumerate AMD northbridges\n");
 
         if (amd_cache_gart() < 0)
-                printk(KERN_NOTICE "AMD NB: Cannot initialize GART flush words, "
-                       "GART support disabled.\n");
+                pr_notice("Cannot initialize GART flush words, GART support disabled\n");
 
         return err;
 }
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 39a222e094af..c421512ca5eb 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2123,6 +2123,25 @@ void default_init_apic_ldr(void)
         apic_write(APIC_LDR, val);
 }
 
+int default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+                                   const struct cpumask *andmask,
+                                   unsigned int *apicid)
+{
+        unsigned int cpu;
+
+        for_each_cpu_and(cpu, cpumask, andmask) {
+                if (cpumask_test_cpu(cpu, cpu_online_mask))
+                        break;
+        }
+
+        if (likely(cpu < nr_cpu_ids)) {
+                *apicid = per_cpu(x86_cpu_to_apicid, cpu);
+                return 0;
+        }
+
+        return -EINVAL;
+}
+
 /*
  * Power management
  */
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index 0e881c46e8c8..00c77cf78e9e 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -36,25 +36,6 @@ static int flat_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
         return 1;
 }
 
-static const struct cpumask *flat_target_cpus(void)
-{
-        return cpu_online_mask;
-}
-
-static void flat_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        /* Careful. Some cpus do not strictly honor the set of cpus
-         * specified in the interrupt destination when using lowest
-         * priority interrupt delivery mode.
-         *
-         * In particular there was a hyperthreading cpu observed to
-         * deliver interrupts to the wrong hyperthread when only one
-         * hyperthread was specified in the interrupt desitination.
-         */
-        cpumask_clear(retmask);
-        cpumask_bits(retmask)[0] = APIC_ALL_CPUS;
-}
-
 /*
  * Set up the logical destination ID.
  *
@@ -92,7 +73,7 @@ static void flat_send_IPI_mask(const struct cpumask *cpumask, int vector)
 }
 
 static void
- flat_send_IPI_mask_allbutself(const struct cpumask *cpumask, int vector)
+flat_send_IPI_mask_allbutself(const struct cpumask *cpumask, int vector)
 {
         unsigned long mask = cpumask_bits(cpumask)[0];
         int cpu = smp_processor_id();
@@ -186,7 +167,7 @@ static struct apic apic_flat =  {
         .irq_delivery_mode              = dest_LowestPrio,
         .irq_dest_mode                  = 1, /* logical */
 
-        .target_cpus                    = flat_target_cpus,
+        .target_cpus                    = online_target_cpus,
         .disable_esr                    = 0,
         .dest_logical                   = APIC_DEST_LOGICAL,
         .check_apicid_used              = NULL,
@@ -210,8 +191,7 @@ static struct apic apic_flat =  {
         .set_apic_id                    = set_apic_id,
         .apic_id_mask                   = 0xFFu << 24,
 
-        .cpu_mask_to_apicid             = default_cpu_mask_to_apicid,
-        .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
+        .cpu_mask_to_apicid_and         = flat_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = flat_send_IPI_mask,
         .send_IPI_mask_allbutself       = flat_send_IPI_mask_allbutself,
@@ -262,17 +242,6 @@ static int physflat_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
         return 0;
 }
 
-static const struct cpumask *physflat_target_cpus(void)
-{
-        return cpu_online_mask;
-}
-
-static void physflat_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        cpumask_clear(retmask);
-        cpumask_set_cpu(cpu, retmask);
-}
-
 static void physflat_send_IPI_mask(const struct cpumask *cpumask, int vector)
 {
         default_send_IPI_mask_sequence_phys(cpumask, vector);
@@ -294,38 +263,6 @@ static void physflat_send_IPI_all(int vector)
         physflat_send_IPI_mask(cpu_online_mask, vector);
 }
 
-static unsigned int physflat_cpu_mask_to_apicid(const struct cpumask *cpumask)
-{
-        int cpu;
-
-        /*
-         * We're using fixed IRQ delivery, can only return one phys APIC ID.
-         * May as well be the first.
-         */
-        cpu = cpumask_first(cpumask);
-        if ((unsigned)cpu < nr_cpu_ids)
-                return per_cpu(x86_cpu_to_apicid, cpu);
-        else
-                return BAD_APICID;
-}
-
-static unsigned int
-physflat_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-                                const struct cpumask *andmask)
-{
-        int cpu;
-
-        /*
-         * We're using fixed IRQ delivery, can only return one phys APIC ID.
-         * May as well be the first.
-         */
-        for_each_cpu_and(cpu, cpumask, andmask) {
-                if (cpumask_test_cpu(cpu, cpu_online_mask))
-                        break;
-        }
-        return per_cpu(x86_cpu_to_apicid, cpu);
-}
-
 static int physflat_probe(void)
 {
         if (apic == &apic_physflat || num_possible_cpus() > 8)
@@ -345,13 +282,13 @@ static struct apic apic_physflat =  {
         .irq_delivery_mode              = dest_Fixed,
         .irq_dest_mode                  = 0, /* physical */
 
-        .target_cpus                    = physflat_target_cpus,
+        .target_cpus                    = online_target_cpus,
         .disable_esr                    = 0,
         .dest_logical                   = 0,
         .check_apicid_used              = NULL,
         .check_apicid_present           = NULL,
 
-        .vector_allocation_domain       = physflat_vector_allocation_domain,
+        .vector_allocation_domain       = default_vector_allocation_domain,
         /* not needed, but shouldn't hurt: */
         .init_apic_ldr                  = flat_init_apic_ldr,
 
@@ -370,8 +307,7 @@ static struct apic apic_physflat =  {
         .set_apic_id                    = set_apic_id,
         .apic_id_mask                   = 0xFFu << 24,
 
-        .cpu_mask_to_apicid             = physflat_cpu_mask_to_apicid,
-        .cpu_mask_to_apicid_and         = physflat_cpu_mask_to_apicid_and,
+        .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = physflat_send_IPI_mask,
         .send_IPI_mask_allbutself       = physflat_send_IPI_mask_allbutself,
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index a6e4c6e06c08..e145f28b4099 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -100,12 +100,12 @@ static unsigned long noop_check_apicid_present(int bit)
         return physid_isset(bit, phys_cpu_present_map);
 }
 
-static void noop_vector_allocation_domain(int cpu, struct cpumask *retmask)
+static void noop_vector_allocation_domain(int cpu, struct cpumask *retmask,
+                                          const struct cpumask *mask)
 {
         if (cpu != 0)
                 pr_warning("APIC: Vector allocated for non-BSP cpu\n");
-        cpumask_clear(retmask);
-        cpumask_set_cpu(cpu, retmask);
+        cpumask_copy(retmask, cpumask_of(cpu));
 }
 
 static u32 noop_apic_read(u32 reg)
@@ -159,8 +159,7 @@ struct apic apic_noop = {
         .set_apic_id                    = NULL,
         .apic_id_mask                   = 0x0F << 24,
 
-        .cpu_mask_to_apicid             = default_cpu_mask_to_apicid,
-        .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
+        .cpu_mask_to_apicid_and         = flat_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = noop_send_IPI_mask,
         .send_IPI_mask_allbutself       = noop_send_IPI_mask_allbutself,
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index 6ec6d5d297c3..bc552cff2578 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -72,17 +72,6 @@ static int numachip_phys_pkg_id(int initial_apic_id, int index_msb)
         return initial_apic_id >> index_msb;
 }
 
-static const struct cpumask *numachip_target_cpus(void)
-{
-        return cpu_online_mask;
-}
-
-static void numachip_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        cpumask_clear(retmask);
-        cpumask_set_cpu(cpu, retmask);
-}
-
 static int __cpuinit numachip_wakeup_secondary(int phys_apicid, unsigned long start_rip)
 {
         union numachip_csr_g3_ext_irq_gen int_gen;
@@ -157,38 +146,6 @@ static void numachip_send_IPI_self(int vector)
         __default_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
 }
 
-static unsigned int numachip_cpu_mask_to_apicid(const struct cpumask *cpumask)
-{
-        int cpu;
-
-        /*
-         * We're using fixed IRQ delivery, can only return one phys APIC ID.
-         * May as well be the first.
-         */
-        cpu = cpumask_first(cpumask);
-        if (likely((unsigned)cpu < nr_cpu_ids))
-                return per_cpu(x86_cpu_to_apicid, cpu);
-
-        return BAD_APICID;
-}
-
-static unsigned int
-numachip_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-                                const struct cpumask *andmask)
-{
-        int cpu;
-
-        /*
-         * We're using fixed IRQ delivery, can only return one phys APIC ID.
-         * May as well be the first.
-         */
-        for_each_cpu_and(cpu, cpumask, andmask) {
-                if (cpumask_test_cpu(cpu, cpu_online_mask))
-                        break;
-        }
-        return per_cpu(x86_cpu_to_apicid, cpu);
-}
-
 static int __init numachip_probe(void)
 {
         return apic == &apic_numachip;
@@ -253,13 +210,13 @@ static struct apic apic_numachip __refconst = {
         .irq_delivery_mode              = dest_Fixed,
         .irq_dest_mode                  = 0, /* physical */
 
-        .target_cpus                    = numachip_target_cpus,
+        .target_cpus                    = online_target_cpus,
         .disable_esr                    = 0,
         .dest_logical                   = 0,
         .check_apicid_used              = NULL,
         .check_apicid_present           = NULL,
 
-        .vector_allocation_domain       = numachip_vector_allocation_domain,
+        .vector_allocation_domain       = default_vector_allocation_domain,
         .init_apic_ldr                  = flat_init_apic_ldr,
 
         .ioapic_phys_id_map             = NULL,
@@ -277,8 +234,7 @@ static struct apic apic_numachip __refconst = {
         .set_apic_id                    = set_apic_id,
         .apic_id_mask                   = 0xffU << 24,
 
-        .cpu_mask_to_apicid             = numachip_cpu_mask_to_apicid,
-        .cpu_mask_to_apicid_and         = numachip_cpu_mask_to_apicid_and,
+        .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = numachip_send_IPI_mask,
         .send_IPI_mask_allbutself       = numachip_send_IPI_mask_allbutself,
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index 31fbdbfbf960..d50e3640d5ae 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -26,15 +26,6 @@ static int bigsmp_apic_id_registered(void)
         return 1;
 }
 
-static const struct cpumask *bigsmp_target_cpus(void)
-{
-#ifdef CONFIG_SMP
-        return cpu_online_mask;
-#else
-        return cpumask_of(0);
-#endif
-}
-
 static unsigned long bigsmp_check_apicid_used(physid_mask_t *map, int apicid)
 {
         return 0;
@@ -105,32 +96,6 @@ static int bigsmp_check_phys_apicid_present(int phys_apicid)
         return 1;
 }
 
-/* As we are using single CPU as destination, pick only one CPU here */
-static unsigned int bigsmp_cpu_mask_to_apicid(const struct cpumask *cpumask)
-{
-        int cpu = cpumask_first(cpumask);
-
-        if (cpu < nr_cpu_ids)
-                return cpu_physical_id(cpu);
-        return BAD_APICID;
-}
-
-static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-                              const struct cpumask *andmask)
-{
-        int cpu;
-
-        /*
-         * We're using fixed IRQ delivery, can only return one phys APIC ID.
-         * May as well be the first.
-         */
-        for_each_cpu_and(cpu, cpumask, andmask) {
-                if (cpumask_test_cpu(cpu, cpu_online_mask))
-                        return cpu_physical_id(cpu);
-        }
-        return BAD_APICID;
-}
-
 static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
 {
         return cpuid_apic >> index_msb;
@@ -177,12 +142,6 @@ static const struct dmi_system_id bigsmp_dmi_table[] = {
         { } /* NULL entry stops DMI scanning */
 };
 
-static void bigsmp_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        cpumask_clear(retmask);
-        cpumask_set_cpu(cpu, retmask);
-}
-
 static int probe_bigsmp(void)
 {
         if (def_to_bigsmp)
@@ -205,13 +164,13 @@ static struct apic apic_bigsmp = {
         /* phys delivery to target CPU: */
         .irq_dest_mode                  = 0,
 
-        .target_cpus                    = bigsmp_target_cpus,
+        .target_cpus                    = default_target_cpus,
         .disable_esr                    = 1,
         .dest_logical                   = 0,
         .check_apicid_used              = bigsmp_check_apicid_used,
         .check_apicid_present           = bigsmp_check_apicid_present,
 
-        .vector_allocation_domain       = bigsmp_vector_allocation_domain,
+        .vector_allocation_domain       = default_vector_allocation_domain,
         .init_apic_ldr                  = bigsmp_init_apic_ldr,
 
         .ioapic_phys_id_map             = bigsmp_ioapic_phys_id_map,
@@ -229,8 +188,7 @@ static struct apic apic_bigsmp = {
         .set_apic_id                    = NULL,
         .apic_id_mask                   = 0xFF << 24,
 
-        .cpu_mask_to_apicid             = bigsmp_cpu_mask_to_apicid,
-        .cpu_mask_to_apicid_and         = bigsmp_cpu_mask_to_apicid_and,
+        .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = bigsmp_send_IPI_mask,
         .send_IPI_mask_allbutself       = NULL,
diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index db4ab1be3c79..0874799a98c6 100644
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -394,21 +394,6 @@ static void es7000_enable_apic_mode(void)
                 WARN(1, "Command failed, status = %x\n", mip_status);
 }
 
-static void es7000_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        /* Careful. Some cpus do not strictly honor the set of cpus
-         * specified in the interrupt destination when using lowest
-         * priority interrupt delivery mode.
-         *
-         * In particular there was a hyperthreading cpu observed to
-         * deliver interrupts to the wrong hyperthread when only one
-         * hyperthread was specified in the interrupt desitination.
-         */
-        cpumask_clear(retmask);
-        cpumask_bits(retmask)[0] = APIC_ALL_CPUS;
-}
-
-
 static void es7000_wait_for_init_deassert(atomic_t *deassert)
 {
         while (!atomic_read(deassert))
@@ -540,45 +525,49 @@ static int es7000_check_phys_apicid_present(int cpu_physical_apicid)
         return 1;
 }
 
-static unsigned int es7000_cpu_mask_to_apicid(const struct cpumask *cpumask)
+static inline int
+es7000_cpu_mask_to_apicid(const struct cpumask *cpumask, unsigned int *dest_id)
 {
         unsigned int round = 0;
-        int cpu, uninitialized_var(apicid);
+        unsigned int cpu, uninitialized_var(apicid);
 
         /*
          * The cpus in the mask must all be on the apic cluster.
          */
-        for_each_cpu(cpu, cpumask) {
+        for_each_cpu_and(cpu, cpumask, cpu_online_mask) {
                 int new_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
 
                 if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
                         WARN(1, "Not a valid mask!");
 
-                        return BAD_APICID;
+                        return -EINVAL;
                 }
-                apicid = new_apicid;
+                apicid |= new_apicid;
                 round++;
         }
-        return apicid;
+        if (!round)
+                return -EINVAL;
+        *dest_id = apicid;
+        return 0;
 }
 
-static unsigned int
+static int
 es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask,
-                              const struct cpumask *andmask)
+                              const struct cpumask *andmask,
+                              unsigned int *apicid)
 {
-        int apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
         cpumask_var_t cpumask;
+        *apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
 
         if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
-                return apicid;
+                return 0;
 
         cpumask_and(cpumask, inmask, andmask);
-        cpumask_and(cpumask, cpumask, cpu_online_mask);
-        apicid = es7000_cpu_mask_to_apicid(cpumask);
+        es7000_cpu_mask_to_apicid(cpumask, apicid);
 
         free_cpumask_var(cpumask);
 
-        return apicid;
+        return 0;
 }
 
 static int es7000_phys_pkg_id(int cpuid_apic, int index_msb)
@@ -638,7 +627,7 @@ static struct apic __refdata apic_es7000_cluster = {
         .check_apicid_used              = es7000_check_apicid_used,
         .check_apicid_present           = es7000_check_apicid_present,
 
-        .vector_allocation_domain       = es7000_vector_allocation_domain,
+        .vector_allocation_domain       = flat_vector_allocation_domain,
         .init_apic_ldr                  = es7000_init_apic_ldr_cluster,
 
         .ioapic_phys_id_map             = es7000_ioapic_phys_id_map,
@@ -656,7 +645,6 @@ static struct apic __refdata apic_es7000_cluster = {
         .set_apic_id                    = NULL,
         .apic_id_mask                   = 0xFF << 24,
 
-        .cpu_mask_to_apicid             = es7000_cpu_mask_to_apicid,
         .cpu_mask_to_apicid_and         = es7000_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = es7000_send_IPI_mask,
@@ -705,7 +693,7 @@ static struct apic __refdata apic_es7000 = {
         .check_apicid_used              = es7000_check_apicid_used,
         .check_apicid_present           = es7000_check_apicid_present,
 
-        .vector_allocation_domain       = es7000_vector_allocation_domain,
+        .vector_allocation_domain       = flat_vector_allocation_domain,
         .init_apic_ldr                  = es7000_init_apic_ldr,
 
         .ioapic_phys_id_map             = es7000_ioapic_phys_id_map,
@@ -723,7 +711,6 @@ static struct apic __refdata apic_es7000 = {
         .set_apic_id                    = NULL,
         .apic_id_mask                   = 0xFF << 24,
 
-        .cpu_mask_to_apicid             = es7000_cpu_mask_to_apicid,
         .cpu_mask_to_apicid_and         = es7000_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = es7000_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 5f0ff597437c..406eee784684 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -448,8 +448,8 @@ static int __add_pin_to_irq_node(struct irq_cfg *cfg, int node, int apic, int pi
 
         entry = alloc_irq_pin_list(node);
         if (!entry) {
-                printk(KERN_ERR "can not alloc irq_pin_list (%d,%d,%d)\n",
-                                node, apic, pin);
+                pr_err("can not alloc irq_pin_list (%d,%d,%d)\n",
+                       node, apic, pin);
                 return -ENOMEM;
         }
         entry->apic = apic;
@@ -661,7 +661,7 @@ static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin)
         ioapic_mask_entry(apic, pin);
         entry = ioapic_read_entry(apic, pin);
         if (entry.irr)
-                printk(KERN_ERR "Unable to reset IRR for apic: %d, pin :%d\n",
+                pr_err("Unable to reset IRR for apic: %d, pin :%d\n",
                        mpc_ioapic_id(apic), pin);
 }
 
@@ -895,7 +895,7 @@ static int irq_polarity(int idx)
                 }
                 case 2: /* reserved */
                 {
-                        printk(KERN_WARNING "broken BIOS!!\n");
+                        pr_warn("broken BIOS!!\n");
                         polarity = 1;
                         break;
                 }
@@ -906,7 +906,7 @@ static int irq_polarity(int idx)
                 }
                 default: /* invalid */
                 {
-                        printk(KERN_WARNING "broken BIOS!!\n");
+                        pr_warn("broken BIOS!!\n");
                         polarity = 1;
                         break;
                 }
@@ -948,7 +948,7 @@ static int irq_trigger(int idx)
                                 }
                                 default:
                                 {
-                                        printk(KERN_WARNING "broken BIOS!!\n");
+                                        pr_warn("broken BIOS!!\n");
                                         trigger = 1;
                                         break;
                                 }
@@ -962,7 +962,7 @@ static int irq_trigger(int idx)
                 }
                 case 2: /* reserved */
                 {
-                        printk(KERN_WARNING "broken BIOS!!\n");
+                        pr_warn("broken BIOS!!\n");
                         trigger = 1;
                         break;
                 }
@@ -973,7 +973,7 @@ static int irq_trigger(int idx)
                 }
                 default: /* invalid */
                 {
-                        printk(KERN_WARNING "broken BIOS!!\n");
+                        pr_warn("broken BIOS!!\n");
                         trigger = 0;
                         break;
                 }
@@ -991,7 +991,7 @@ static int pin_2_irq(int idx, int apic, int pin)
          * Debugging check, we are in big trouble if this message pops up!
          */
         if (mp_irqs[idx].dstirq != pin)
-                printk(KERN_ERR "broken BIOS or MPTABLE parser, ayiee!!\n");
+                pr_err("broken BIOS or MPTABLE parser, ayiee!!\n");
 
         if (test_bit(bus, mp_bus_not_pci)) {
                 irq = mp_irqs[idx].srcbusirq;
@@ -1112,8 +1112,7 @@ __assign_irq_vector(int irq, struct irq_cfg *cfg, const struct cpumask *mask)
          * 0x80, because int 0x80 is hm, kind of importantish. ;)
          */
         static int current_vector = FIRST_EXTERNAL_VECTOR + VECTOR_OFFSET_START;
-        static int current_offset = VECTOR_OFFSET_START % 8;
-        unsigned int old_vector;
+        static int current_offset = VECTOR_OFFSET_START % 16;
         int cpu, err;
         cpumask_var_t tmp_mask;
 
@@ -1123,35 +1122,45 @@ __assign_irq_vector(int irq, struct irq_cfg *cfg, const struct cpumask *mask)
         if (!alloc_cpumask_var(&tmp_mask, GFP_ATOMIC))
                 return -ENOMEM;
 
-        old_vector = cfg->vector;
-        if (old_vector) {
-                cpumask_and(tmp_mask, mask, cpu_online_mask);
-                cpumask_and(tmp_mask, cfg->domain, tmp_mask);
-                if (!cpumask_empty(tmp_mask)) {
-                        free_cpumask_var(tmp_mask);
-                        return 0;
-                }
-        }
-
         /* Only try and allocate irqs on cpus that are present */
         err = -ENOSPC;
-        for_each_cpu_and(cpu, mask, cpu_online_mask) {
-                int new_cpu;
-                int vector, offset;
+        cpumask_clear(cfg->old_domain);
+        cpu = cpumask_first_and(mask, cpu_online_mask);
+        while (cpu < nr_cpu_ids) {
+                int new_cpu, vector, offset;
 
-                apic->vector_allocation_domain(cpu, tmp_mask);
+                apic->vector_allocation_domain(cpu, tmp_mask, mask);
+
+                if (cpumask_subset(tmp_mask, cfg->domain)) {
+                        err = 0;
+                        if (cpumask_equal(tmp_mask, cfg->domain))
+                                break;
+                        /*
+                         * New cpumask using the vector is a proper subset of
+                         * the current in use mask. So cleanup the vector
+                         * allocation for the members that are not used anymore.
+                         */
+                        cpumask_andnot(cfg->old_domain, cfg->domain, tmp_mask);
+                        cfg->move_in_progress = 1;
+                        cpumask_and(cfg->domain, cfg->domain, tmp_mask);
+                        break;
+                }
 
                 vector = current_vector;
                 offset = current_offset;
 next:
-                vector += 8;
+                vector += 16;
                 if (vector >= first_system_vector) {
-                        /* If out of vectors on large boxen, must share them. */
-                        offset = (offset + 1) % 8;
+                        offset = (offset + 1) % 16;
                         vector = FIRST_EXTERNAL_VECTOR + offset;
                 }
-                if (unlikely(current_vector == vector))
+
+                if (unlikely(current_vector == vector)) {
+                        cpumask_or(cfg->old_domain, cfg->old_domain, tmp_mask);
+                        cpumask_andnot(tmp_mask, mask, cfg->old_domain);
+                        cpu = cpumask_first_and(tmp_mask, cpu_online_mask);
                         continue;
+                }
 
                 if (test_bit(vector, used_vectors))
                         goto next;
@@ -1162,7 +1171,7 @@ next:
                 /* Found one! */
                 current_vector = vector;
                 current_offset = offset;
-                if (old_vector) {
+                if (cfg->vector) {
                         cfg->move_in_progress = 1;
                         cpumask_copy(cfg->old_domain, cfg->domain);
                 }
@@ -1346,18 +1355,18 @@ static void setup_ioapic_irq(unsigned int irq, struct irq_cfg *cfg,
 
         if (!IO_APIC_IRQ(irq))
                 return;
-        /*
-         * For legacy irqs, cfg->domain starts with cpu 0 for legacy
-         * controllers like 8259. Now that IO-APIC can handle this irq, update
-         * the cfg->domain.
-         */
-        if (irq < legacy_pic->nr_legacy_irqs && cpumask_test_cpu(0, cfg->domain))
-                apic->vector_allocation_domain(0, cfg->domain);
 
         if (assign_irq_vector(irq, cfg, apic->target_cpus()))
                 return;
 
-        dest = apic->cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus());
+        if (apic->cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus(),
+                                         &dest)) {
+                pr_warn("Failed to obtain apicid for ioapic %d, pin %d\n",
+                        mpc_ioapic_id(attr->ioapic), attr->ioapic_pin);
+                __clear_irq_vector(irq, cfg);
+
+                return;
+        }
 
         apic_printk(APIC_VERBOSE,KERN_DEBUG
                     "IOAPIC[%d]: Set routing entry (%d-%d -> 0x%x -> "
@@ -1366,7 +1375,7 @@ static void setup_ioapic_irq(unsigned int irq, struct irq_cfg *cfg,
                     cfg->vector, irq, attr->trigger, attr->polarity, dest);
 
         if (setup_ioapic_entry(irq, &entry, dest, cfg->vector, attr)) {
-                pr_warn("Failed to setup ioapic entry for ioapic  %d, pin %d\n",
+                pr_warn("Failed to setup ioapic entry for ioapic %d, pin %d\n",
                         mpc_ioapic_id(attr->ioapic), attr->ioapic_pin);
                 __clear_irq_vector(irq, cfg);
 
@@ -1469,9 +1478,10 @@ void setup_IO_APIC_irq_extra(u32 gsi)
  * Set up the timer pin, possibly with the 8259A-master behind.
  */
 static void __init setup_timer_IRQ0_pin(unsigned int ioapic_idx,
-                                         unsigned int pin, int vector)
+                                        unsigned int pin, int vector)
 {
         struct IO_APIC_route_entry entry;
+        unsigned int dest;
 
         if (irq_remapping_enabled)
                 return;
@@ -1482,9 +1492,13 @@ static void __init setup_timer_IRQ0_pin(unsigned int ioapic_idx,
          * We use logical delivery to get the timer IRQ
          * to the first CPU.
          */
+        if (unlikely(apic->cpu_mask_to_apicid_and(apic->target_cpus(),
+                                                  apic->target_cpus(), &dest)))
+                dest = BAD_APICID;
+
         entry.dest_mode = apic->irq_dest_mode;
         entry.mask = 0;                 /* don't mask IRQ for edge */
-        entry.dest = apic->cpu_mask_to_apicid(apic->target_cpus());
+        entry.dest = dest;
         entry.delivery_mode = apic->irq_delivery_mode;
         entry.polarity = 0;
         entry.trigger = 0;
@@ -1521,7 +1535,6 @@ __apicdebuginit(void) print_IO_APIC(int ioapic_idx)
                 reg_03.raw = io_apic_read(ioapic_idx, 3);
         raw_spin_unlock_irqrestore(&ioapic_lock, flags);
 
-        printk("\n");
         printk(KERN_DEBUG "IO APIC #%d......\n", mpc_ioapic_id(ioapic_idx));
         printk(KERN_DEBUG ".... register #00: %08X\n", reg_00.raw);
         printk(KERN_DEBUG ".......    : physical APIC id: %02X\n", reg_00.bits.ID);
@@ -1578,7 +1591,7 @@ __apicdebuginit(void) print_IO_APIC(int ioapic_idx)
                                 i,
                                 ir_entry->index
                         );
-                        printk("%1d   %1d    %1d    %1d   %1d   "
+                        pr_cont("%1d   %1d    %1d    %1d   %1d   "
                                 "%1d    %1d     %X    %02X\n",
                                 ir_entry->format,
                                 ir_entry->mask,
@@ -1598,7 +1611,7 @@ __apicdebuginit(void) print_IO_APIC(int ioapic_idx)
                                 i,
                                 entry.dest
                         );
-                        printk("%1d    %1d    %1d   %1d   %1d    "
+                        pr_cont("%1d    %1d    %1d   %1d   %1d    "
                                 "%1d    %1d    %02X\n",
                                 entry.mask,
                                 entry.trigger,
@@ -1651,8 +1664,8 @@ __apicdebuginit(void) print_IO_APICs(void)
                         continue;
                 printk(KERN_DEBUG "IRQ%d ", irq);
                 for_each_irq_pin(entry, cfg->irq_2_pin)
-                        printk("-> %d:%d", entry->apic, entry->pin);
-                printk("\n");
+                        pr_cont("-> %d:%d", entry->apic, entry->pin);
+                pr_cont("\n");
         }
 
         printk(KERN_INFO ".................................... done.\n");
@@ -1665,9 +1678,9 @@ __apicdebuginit(void) print_APIC_field(int base)
         printk(KERN_DEBUG);
 
         for (i = 0; i < 8; i++)
-                printk(KERN_CONT "%08x", apic_read(base + i*0x10));
+                pr_cont("%08x", apic_read(base + i*0x10));
 
-        printk(KERN_CONT "\n");
+        pr_cont("\n");
 }
 
 __apicdebuginit(void) print_local_APIC(void *dummy)
@@ -1769,7 +1782,7 @@ __apicdebuginit(void) print_local_APIC(void *dummy)
                         printk(KERN_DEBUG "... APIC EILVT%d: %08x\n", i, v);
                 }
         }
-        printk("\n");
+        pr_cont("\n");
 }
 
 __apicdebuginit(void) print_local_APICs(int maxcpu)
@@ -2065,7 +2078,7 @@ void __init setup_ioapic_ids_from_mpc_nocheck(void)
                 reg_00.raw = io_apic_read(ioapic_idx, 0);
                 raw_spin_unlock_irqrestore(&ioapic_lock, flags);
                 if (reg_00.bits.ID != mpc_ioapic_id(ioapic_idx))
-                        printk("could not set ID!\n");
+                        pr_cont("could not set ID!\n");
                 else
                         apic_printk(APIC_VERBOSE, " ok.\n");
         }
@@ -2210,71 +2223,6 @@ void send_cleanup_vector(struct irq_cfg *cfg)
         cfg->move_in_progress = 0;
 }
 
-static void __target_IO_APIC_irq(unsigned int irq, unsigned int dest, struct irq_cfg *cfg)
-{
-        int apic, pin;
-        struct irq_pin_list *entry;
-        u8 vector = cfg->vector;
-
-        for_each_irq_pin(entry, cfg->irq_2_pin) {
-                unsigned int reg;
-
-                apic = entry->apic;
-                pin = entry->pin;
-                /*
-                 * With interrupt-remapping, destination information comes
-                 * from interrupt-remapping table entry.
-                 */
-                if (!irq_remapped(cfg))
-                        io_apic_write(apic, 0x11 + pin*2, dest);
-                reg = io_apic_read(apic, 0x10 + pin*2);
-                reg &= ~IO_APIC_REDIR_VECTOR_MASK;
-                reg |= vector;
-                io_apic_modify(apic, 0x10 + pin*2, reg);
-        }
-}
-
-/*
- * Either sets data->affinity to a valid value, and returns
- * ->cpu_mask_to_apicid of that in dest_id, or returns -1 and
- * leaves data->affinity untouched.
- */
-int __ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
-                          unsigned int *dest_id)
-{
-        struct irq_cfg *cfg = data->chip_data;
-
-        if (!cpumask_intersects(mask, cpu_online_mask))
-                return -1;
-
-        if (assign_irq_vector(data->irq, data->chip_data, mask))
-                return -1;
-
-        cpumask_copy(data->affinity, mask);
-
-        *dest_id = apic->cpu_mask_to_apicid_and(mask, cfg->domain);
-        return 0;
-}
-
-static int
-ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
-                    bool force)
-{
-        unsigned int dest, irq = data->irq;
-        unsigned long flags;
-        int ret;
-
-        raw_spin_lock_irqsave(&ioapic_lock, flags);
-        ret = __ioapic_set_affinity(data, mask, &dest);
-        if (!ret) {
-                /* Only the high 8 bits are valid. */
-                dest = SET_APIC_LOGICAL_ID(dest);
-                __target_IO_APIC_irq(irq, dest, data->chip_data);
-        }
-        raw_spin_unlock_irqrestore(&ioapic_lock, flags);
-        return ret;
-}
-
 asmlinkage void smp_irq_move_cleanup_interrupt(void)
 {
         unsigned vector, me;
@@ -2362,6 +2310,87 @@ void irq_force_complete_move(int irq)
 static inline void irq_complete_move(struct irq_cfg *cfg) { }
 #endif
 
+static void __target_IO_APIC_irq(unsigned int irq, unsigned int dest, struct irq_cfg *cfg)
+{
+        int apic, pin;
+        struct irq_pin_list *entry;
+        u8 vector = cfg->vector;
+
+        for_each_irq_pin(entry, cfg->irq_2_pin) {
+                unsigned int reg;
+
+                apic = entry->apic;
+                pin = entry->pin;
+                /*
+                 * With interrupt-remapping, destination information comes
+                 * from interrupt-remapping table entry.
+                 */
+                if (!irq_remapped(cfg))
+                        io_apic_write(apic, 0x11 + pin*2, dest);
+                reg = io_apic_read(apic, 0x10 + pin*2);
+                reg &= ~IO_APIC_REDIR_VECTOR_MASK;
+                reg |= vector;
+                io_apic_modify(apic, 0x10 + pin*2, reg);
+        }
+}
+
+/*
+ * Either sets data->affinity to a valid value, and returns
+ * ->cpu_mask_to_apicid of that in dest_id, or returns -1 and
+ * leaves data->affinity untouched.
+ */
+int __ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
+                          unsigned int *dest_id)
+{
+        struct irq_cfg *cfg = data->chip_data;
+        unsigned int irq = data->irq;
+        int err;
+
+        if (!config_enabled(CONFIG_SMP))
+                return -1;
+
+        if (!cpumask_intersects(mask, cpu_online_mask))
+                return -EINVAL;
+
+        err = assign_irq_vector(irq, cfg, mask);
+        if (err)
+                return err;
+
+        err = apic->cpu_mask_to_apicid_and(mask, cfg->domain, dest_id);
+        if (err) {
+                if (assign_irq_vector(irq, cfg, data->affinity))
+                        pr_err("Failed to recover vector for irq %d\n", irq);
+                return err;
+        }
+
+        cpumask_copy(data->affinity, mask);
+
+        return 0;
+}
+
+static int
+ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
+                    bool force)
+{
+        unsigned int dest, irq = data->irq;
+        unsigned long flags;
+        int ret;
+
+        if (!config_enabled(CONFIG_SMP))
+                return -1;
+
+        raw_spin_lock_irqsave(&ioapic_lock, flags);
+        ret = __ioapic_set_affinity(data, mask, &dest);
+        if (!ret) {
+                /* Only the high 8 bits are valid. */
+                dest = SET_APIC_LOGICAL_ID(dest);
+                __target_IO_APIC_irq(irq, dest, data->chip_data);
+                ret = IRQ_SET_MASK_OK_NOCOPY;
+        }
+        raw_spin_unlock_irqrestore(&ioapic_lock, flags);
+        return ret;
+}
+
 static void ack_apic_edge(struct irq_data *data)
 {
         irq_complete_move(data->chip_data);
@@ -2541,9 +2570,7 @@ static void irq_remap_modify_chip_defaults(struct irq_chip *chip)
         chip->irq_ack = ir_ack_apic_edge;
         chip->irq_eoi = ir_ack_apic_level;
 
-#ifdef CONFIG_SMP
         chip->irq_set_affinity = set_remapped_irq_affinity;
-#endif
 }
 #endif /* CONFIG_IRQ_REMAP */
 
@@ -2554,9 +2581,7 @@ static struct irq_chip ioapic_chip __read_mostly = {
         .irq_unmask             = unmask_ioapic_irq,
         .irq_ack                = ack_apic_edge,
         .irq_eoi                = ack_apic_level,
-#ifdef CONFIG_SMP
         .irq_set_affinity       = ioapic_set_affinity,
-#endif
         .irq_retrigger          = ioapic_retrigger_irq,
 };
 
@@ -3038,7 +3063,10 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq,
         if (err)
                 return err;
 
-        dest = apic->cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus());
+        err = apic->cpu_mask_to_apicid_and(cfg->domain,
+                                           apic->target_cpus(), &dest);
+        if (err)
+                return err;
 
         if (irq_remapped(cfg)) {
                 compose_remapped_msi_msg(pdev, irq, dest, msg, hpet_id);
@@ -3072,7 +3100,6 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq,
         return err;
 }
 
-#ifdef CONFIG_SMP
 static int
 msi_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
 {
@@ -3092,9 +3119,8 @@ msi_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
 
         __write_msi_msg(data->msi_desc, &msg);
 
-        return 0;
+        return IRQ_SET_MASK_OK_NOCOPY;
 }
-#endif /* CONFIG_SMP */
 
 /*
  * IRQ Chip for MSI PCI/PCI-X/PCI-Express Devices,
@@ -3105,9 +3131,7 @@ static struct irq_chip msi_chip = {
         .irq_unmask             = unmask_msi_irq,
         .irq_mask               = mask_msi_irq,
         .irq_ack                = ack_apic_edge,
-#ifdef CONFIG_SMP
         .irq_set_affinity       = msi_set_affinity,
-#endif
         .irq_retrigger          = ioapic_retrigger_irq,
 };
 
@@ -3192,7 +3216,6 @@ void native_teardown_msi_irq(unsigned int irq)
 }
 
 #ifdef CONFIG_DMAR_TABLE
-#ifdef CONFIG_SMP
 static int
 dmar_msi_set_affinity(struct irq_data *data, const struct cpumask *mask,
                       bool force)
@@ -3214,19 +3237,15 @@ dmar_msi_set_affinity(struct irq_data *data, const struct cpumask *mask,
 
         dmar_msi_write(irq, &msg);
 
-        return 0;
+        return IRQ_SET_MASK_OK_NOCOPY;
 }
 
-#endif /* CONFIG_SMP */
-
 static struct irq_chip dmar_msi_type = {
         .name                   = "DMAR_MSI",
         .irq_unmask             = dmar_msi_unmask,
         .irq_mask               = dmar_msi_mask,
         .irq_ack                = ack_apic_edge,
-#ifdef CONFIG_SMP
         .irq_set_affinity       = dmar_msi_set_affinity,
-#endif
         .irq_retrigger          = ioapic_retrigger_irq,
 };
 
@@ -3247,7 +3266,6 @@ int arch_setup_dmar_msi(unsigned int irq)
 
 #ifdef CONFIG_HPET_TIMER
 
-#ifdef CONFIG_SMP
 static int hpet_msi_set_affinity(struct irq_data *data,
                                  const struct cpumask *mask, bool force)
 {
@@ -3267,19 +3285,15 @@ static int hpet_msi_set_affinity(struct irq_data *data,
 
         hpet_msi_write(data->handler_data, &msg);
 
-        return 0;
+        return IRQ_SET_MASK_OK_NOCOPY;
 }
 
-#endif /* CONFIG_SMP */
-
 static struct irq_chip hpet_msi_type = {
         .name = "HPET_MSI",
         .irq_unmask = hpet_msi_unmask,
         .irq_mask = hpet_msi_mask,
         .irq_ack = ack_apic_edge,
-#ifdef CONFIG_SMP
         .irq_set_affinity = hpet_msi_set_affinity,
-#endif
         .irq_retrigger = ioapic_retrigger_irq,
 };
 
@@ -3314,8 +3328,6 @@ int arch_setup_hpet_msi(unsigned int irq, unsigned int id)
  */
 #ifdef CONFIG_HT_IRQ
 
-#ifdef CONFIG_SMP
-
 static void target_ht_irq(unsigned int irq, unsigned int dest, u8 vector)
 {
         struct ht_irq_msg msg;
@@ -3340,25 +3352,23 @@ ht_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
                 return -1;
 
         target_ht_irq(data->irq, dest, cfg->vector);
-        return 0;
+        return IRQ_SET_MASK_OK_NOCOPY;
 }
 
-#endif
-
 static struct irq_chip ht_irq_chip = {
         .name                   = "PCI-HT",
         .irq_mask               = mask_ht_irq,
         .irq_unmask             = unmask_ht_irq,
         .irq_ack                = ack_apic_edge,
-#ifdef CONFIG_SMP
         .irq_set_affinity       = ht_set_affinity,
-#endif
         .irq_retrigger          = ioapic_retrigger_irq,
 };
 
 int arch_setup_ht_irq(unsigned int irq, struct pci_dev *dev)
 {
         struct irq_cfg *cfg;
+        struct ht_irq_msg msg;
+        unsigned dest;
         int err;
 
         if (disable_apic)
@@ -3366,36 +3376,37 @@ int arch_setup_ht_irq(unsigned int irq, struct pci_dev *dev)
 
         cfg = irq_cfg(irq);
         err = assign_irq_vector(irq, cfg, apic->target_cpus());
-        if (!err) {
-                struct ht_irq_msg msg;
-                unsigned dest;
+        if (err)
+                return err;
+
+        err = apic->cpu_mask_to_apicid_and(cfg->domain,
+                                           apic->target_cpus(), &dest);
+        if (err)
+                return err;
 
-                dest = apic->cpu_mask_to_apicid_and(cfg->domain,
-                                                    apic->target_cpus());
+        msg.address_hi = HT_IRQ_HIGH_DEST_ID(dest);
 
-                msg.address_hi = HT_IRQ_HIGH_DEST_ID(dest);
+        msg.address_lo =
+                HT_IRQ_LOW_BASE |
+                HT_IRQ_LOW_DEST_ID(dest) |
+                HT_IRQ_LOW_VECTOR(cfg->vector) |
+                ((apic->irq_dest_mode == 0) ?
+                        HT_IRQ_LOW_DM_PHYSICAL :
+                        HT_IRQ_LOW_DM_LOGICAL) |
+                HT_IRQ_LOW_RQEOI_EDGE |
+                ((apic->irq_delivery_mode != dest_LowestPrio) ?
+                        HT_IRQ_LOW_MT_FIXED :
+                        HT_IRQ_LOW_MT_ARBITRATED) |
+                HT_IRQ_LOW_IRQ_MASKED;
 
-                msg.address_lo =
-                        HT_IRQ_LOW_BASE |
-                        HT_IRQ_LOW_DEST_ID(dest) |
-                        HT_IRQ_LOW_VECTOR(cfg->vector) |
-                        ((apic->irq_dest_mode == 0) ?
-                                HT_IRQ_LOW_DM_PHYSICAL :
-                                HT_IRQ_LOW_DM_LOGICAL) |
-                        HT_IRQ_LOW_RQEOI_EDGE |
-                        ((apic->irq_delivery_mode != dest_LowestPrio) ?
-                                HT_IRQ_LOW_MT_FIXED :
-                                HT_IRQ_LOW_MT_ARBITRATED) |
-                        HT_IRQ_LOW_IRQ_MASKED;
+        write_ht_irq_msg(irq, &msg);
 
-                write_ht_irq_msg(irq, &msg);
+        irq_set_chip_and_handler_name(irq, &ht_irq_chip,
+                                      handle_edge_irq, "edge");
 
-                irq_set_chip_and_handler_name(irq, &ht_irq_chip,
-                                              handle_edge_irq, "edge");
+        dev_printk(KERN_DEBUG, &dev->dev, "irq %d for HT\n", irq);
 
-                dev_printk(KERN_DEBUG, &dev->dev, "irq %d for HT\n", irq);
-        }
-        return err;
+        return 0;
 }
 #endif /* CONFIG_HT_IRQ */
 
@@ -3563,7 +3574,8 @@ static int __init io_apic_get_unique_id(int ioapic, int apic_id)
 
                 /* Sanity check */
                 if (reg_00.bits.ID != apic_id) {
-                        printk("IOAPIC[%d]: Unable to change apic_id!\n", ioapic);
+                        pr_err("IOAPIC[%d]: Unable to change apic_id!\n",
+                               ioapic);
                         return -1;
                 }
         }
diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index f00a68cca37a..d661ee95cabf 100644
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -406,16 +406,13 @@ static inline int numaq_check_phys_apicid_present(int phys_apicid)
  * We use physical apicids here, not logical, so just return the default
  * physical broadcast to stop people from breaking us
  */
-static unsigned int numaq_cpu_mask_to_apicid(const struct cpumask *cpumask)
-{
-        return 0x0F;
-}
-
-static inline unsigned int
+static int
 numaq_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-                             const struct cpumask *andmask)
+                             const struct cpumask *andmask,
+                             unsigned int *apicid)
 {
-        return 0x0F;
+        *apicid = 0x0F;
+        return 0;
 }
 
 /* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
@@ -441,20 +438,6 @@ static int probe_numaq(void)
         return found_numaq;
 }
 
-static void numaq_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        /* Careful. Some cpus do not strictly honor the set of cpus
-         * specified in the interrupt destination when using lowest
-         * priority interrupt delivery mode.
-         *
-         * In particular there was a hyperthreading cpu observed to
-         * deliver interrupts to the wrong hyperthread when only one
-         * hyperthread was specified in the interrupt desitination.
-         */
-        cpumask_clear(retmask);
-        cpumask_bits(retmask)[0] = APIC_ALL_CPUS;
-}
-
 static void numaq_setup_portio_remap(void)
 {
         int num_quads = num_online_nodes();
@@ -491,7 +474,7 @@ static struct apic __refdata apic_numaq = {
         .check_apicid_used              = numaq_check_apicid_used,
         .check_apicid_present           = numaq_check_apicid_present,
 
-        .vector_allocation_domain       = numaq_vector_allocation_domain,
+        .vector_allocation_domain       = flat_vector_allocation_domain,
         .init_apic_ldr                  = numaq_init_apic_ldr,
 
         .ioapic_phys_id_map             = numaq_ioapic_phys_id_map,
@@ -509,7 +492,6 @@ static struct apic __refdata apic_numaq = {
         .set_apic_id                    = NULL,
         .apic_id_mask                   = 0x0F << 24,
 
-        .cpu_mask_to_apicid             = numaq_cpu_mask_to_apicid,
         .cpu_mask_to_apicid_and         = numaq_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = numaq_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index 1b291da09e60..eb35ef9ee63f 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -66,21 +66,6 @@ static void setup_apic_flat_routing(void)
 #endif
 }
 
-static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        /*
-         * Careful. Some cpus do not strictly honor the set of cpus
-         * specified in the interrupt destination when using lowest
-         * priority interrupt delivery mode.
-         *
-         * In particular there was a hyperthreading cpu observed to
-         * deliver interrupts to the wrong hyperthread when only one
-         * hyperthread was specified in the interrupt desitination.
-         */
-        cpumask_clear(retmask);
-        cpumask_bits(retmask)[0] = APIC_ALL_CPUS;
-}
-
 /* should be called last. */
 static int probe_default(void)
 {
@@ -105,7 +90,7 @@ static struct apic apic_default = {
         .check_apicid_used              = default_check_apicid_used,
         .check_apicid_present           = default_check_apicid_present,
 
-        .vector_allocation_domain       = default_vector_allocation_domain,
+        .vector_allocation_domain       = flat_vector_allocation_domain,
         .init_apic_ldr                  = default_init_apic_ldr,
 
         .ioapic_phys_id_map             = default_ioapic_phys_id_map,
@@ -123,8 +108,7 @@ static struct apic apic_default = {
         .set_apic_id                    = NULL,
         .apic_id_mask                   = 0x0F << 24,
 
-        .cpu_mask_to_apicid             = default_cpu_mask_to_apicid,
-        .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
+        .cpu_mask_to_apicid_and         = flat_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = default_send_IPI_mask_logical,
         .send_IPI_mask_allbutself       = default_send_IPI_mask_allbutself_logical,
@@ -208,6 +192,9 @@ void __init default_setup_apic_routing(void)
 
         if (apic->setup_apic_routing)
                 apic->setup_apic_routing();
+
+        if (x86_platform.apic_post_init)
+                x86_platform.apic_post_init();
 }
 
 void __init generic_apic_probe(void)
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 3fe986698929..1793dba7a741 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -23,11 +23,6 @@
 #include <asm/ipi.h>
 #include <asm/setup.h>
 
-static int apicid_phys_pkg_id(int initial_apic_id, int index_msb)
-{
-        return hard_smp_processor_id() >> index_msb;
-}
-
 /*
  * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode.
  */
@@ -48,10 +43,8 @@ void __init default_setup_apic_routing(void)
                 }
         }
 
-        if (is_vsmp_box()) {
-                /* need to update phys_pkg_id */
-                apic->phys_pkg_id = apicid_phys_pkg_id;
-        }
+        if (x86_platform.apic_post_init)
+                x86_platform.apic_post_init();
 }
 
 /* Same for both flat and physical. */
diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c
index 659897c00755..77c95c0e1bf7 100644
--- a/arch/x86/kernel/apic/summit_32.c
+++ b/arch/x86/kernel/apic/summit_32.c
@@ -26,6 +26,8 @@
  *
  */
 
+#define pr_fmt(fmt) "summit: %s: " fmt, __func__
+
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <asm/io.h>
@@ -235,8 +237,8 @@ static int summit_apic_id_registered(void)
 
 static void summit_setup_apic_routing(void)
 {
-        printk("Enabling APIC mode:  Summit.  Using %d I/O APICs\n",
-                                                nr_ioapics);
+        pr_info("Enabling APIC mode:  Summit.  Using %d I/O APICs\n",
+                nr_ioapics);
 }
 
 static int summit_cpu_present_to_apicid(int mps_cpu)
@@ -263,43 +265,48 @@ static int summit_check_phys_apicid_present(int physical_apicid)
         return 1;
 }
 
-static unsigned int summit_cpu_mask_to_apicid(const struct cpumask *cpumask)
+static inline int
+summit_cpu_mask_to_apicid(const struct cpumask *cpumask, unsigned int *dest_id)
 {
         unsigned int round = 0;
-        int cpu, apicid = 0;
+        unsigned int cpu, apicid = 0;
 
         /*
          * The cpus in the mask must all be on the apic cluster.
          */
-        for_each_cpu(cpu, cpumask) {
+        for_each_cpu_and(cpu, cpumask, cpu_online_mask) {
                 int new_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
 
                 if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
-                        printk("%s: Not a valid mask!\n", __func__);
-                        return BAD_APICID;
+                        pr_err("Not a valid mask!\n");
+                        return -EINVAL;
                 }
                 apicid |= new_apicid;
                 round++;
         }
-        return apicid;
+        if (!round)
+                return -EINVAL;
+        *dest_id = apicid;
+        return 0;
 }
 
-static unsigned int summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
-                              const struct cpumask *andmask)
+static int
+summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
+                              const struct cpumask *andmask,
+                              unsigned int *apicid)
 {
-        int apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
         cpumask_var_t cpumask;
+        *apicid = early_per_cpu(x86_cpu_to_logical_apicid, 0);
 
         if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
-                return apicid;
+                return 0;
 
         cpumask_and(cpumask, inmask, andmask);
-        cpumask_and(cpumask, cpumask, cpu_online_mask);
-        apicid = summit_cpu_mask_to_apicid(cpumask);
+        summit_cpu_mask_to_apicid(cpumask, apicid);
 
         free_cpumask_var(cpumask);
 
-        return apicid;
+        return 0;
 }
 
 /*
@@ -320,20 +327,6 @@ static int probe_summit(void)
         return 0;
 }
 
-static void summit_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        /* Careful. Some cpus do not strictly honor the set of cpus
-         * specified in the interrupt destination when using lowest
-         * priority interrupt delivery mode.
-         *
-         * In particular there was a hyperthreading cpu observed to
-         * deliver interrupts to the wrong hyperthread when only one
-         * hyperthread was specified in the interrupt desitination.
-         */
-        cpumask_clear(retmask);
-        cpumask_bits(retmask)[0] = APIC_ALL_CPUS;
-}
-
 #ifdef CONFIG_X86_SUMMIT_NUMA
 static struct rio_table_hdr *rio_table_hdr;
 static struct scal_detail   *scal_devs[MAX_NUMNODES];
@@ -355,7 +348,7 @@ static int setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
                 }
         }
         if (i == rio_table_hdr->num_rio_dev) {
-                printk(KERN_ERR "%s: Couldn't find owner Cyclone for Winnipeg!\n", __func__);
+                pr_err("Couldn't find owner Cyclone for Winnipeg!\n");
                 return last_bus;
         }
 
@@ -366,7 +359,7 @@ static int setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
                 }
         }
         if (i == rio_table_hdr->num_scal_dev) {
-                printk(KERN_ERR "%s: Couldn't find owner Twister for Cyclone!\n", __func__);
+                pr_err("Couldn't find owner Twister for Cyclone!\n");
                 return last_bus;
         }
 
@@ -396,7 +389,7 @@ static int setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
                 num_buses = 9;
                 break;
         default:
-                printk(KERN_INFO "%s: Unsupported Winnipeg type!\n", __func__);
+                pr_info("Unsupported Winnipeg type!\n");
                 return last_bus;
         }
 
@@ -411,13 +404,15 @@ static int build_detail_arrays(void)
         int i, scal_detail_size, rio_detail_size;
 
         if (rio_table_hdr->num_scal_dev > MAX_NUMNODES) {
-                printk(KERN_WARNING "%s: MAX_NUMNODES too low!  Defined as %d, but system has %d nodes.\n", __func__, MAX_NUMNODES, rio_table_hdr->num_scal_dev);
+                pr_warn("MAX_NUMNODES too low!  Defined as %d, but system has %d nodes\n",
+                        MAX_NUMNODES, rio_table_hdr->num_scal_dev);
                 return 0;
         }
 
         switch (rio_table_hdr->version) {
         default:
-                printk(KERN_WARNING "%s: Invalid Rio Grande Table Version: %d\n", __func__, rio_table_hdr->version);
+                pr_warn("Invalid Rio Grande Table Version: %d\n",
+                        rio_table_hdr->version);
                 return 0;
         case 2:
                 scal_detail_size = 11;
@@ -462,7 +457,7 @@ void setup_summit(void)
                 offset = *((unsigned short *)(ptr + offset));
         }
         if (!rio_table_hdr) {
-                printk(KERN_ERR "%s: Unable to locate Rio Grande Table in EBDA - bailing!\n", __func__);
+                pr_err("Unable to locate Rio Grande Table in EBDA - bailing!\n");
                 return;
         }
 
@@ -509,7 +504,7 @@ static struct apic apic_summit = {
         .check_apicid_used              = summit_check_apicid_used,
         .check_apicid_present           = summit_check_apicid_present,
 
-        .vector_allocation_domain       = summit_vector_allocation_domain,
+        .vector_allocation_domain       = flat_vector_allocation_domain,
         .init_apic_ldr                  = summit_init_apic_ldr,
 
         .ioapic_phys_id_map             = summit_ioapic_phys_id_map,
@@ -527,7 +522,6 @@ static struct apic apic_summit = {
         .set_apic_id                    = NULL,
         .apic_id_mask                   = 0xFF << 24,
 
-        .cpu_mask_to_apicid             = summit_cpu_mask_to_apicid,
         .cpu_mask_to_apicid_and         = summit_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = summit_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index ff35cff0e1a7..c88baa4ff0e5 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -81,7 +81,7 @@ static void x2apic_send_IPI_mask(const struct cpumask *mask, int vector)
 }
 
 static void
- x2apic_send_IPI_mask_allbutself(const struct cpumask *mask, int vector)
+x2apic_send_IPI_mask_allbutself(const struct cpumask *mask, int vector)
 {
         __x2apic_send_IPI_mask(mask, vector, APIC_DEST_ALLBUT);
 }
@@ -96,36 +96,37 @@ static void x2apic_send_IPI_all(int vector)
         __x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC);
 }
 
-static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
+static int
+x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+                              const struct cpumask *andmask,
+                              unsigned int *apicid)
 {
-        /*
-         * We're using fixed IRQ delivery, can only return one logical APIC ID.
-         * May as well be the first.
-         */
-        int cpu = cpumask_first(cpumask);
+        u32 dest = 0;
+        u16 cluster;
+        int i;
 
-        if ((unsigned)cpu < nr_cpu_ids)
-                return per_cpu(x86_cpu_to_logical_apicid, cpu);
-        else
-                return BAD_APICID;
-}
+        for_each_cpu_and(i, cpumask, andmask) {
+                if (!cpumask_test_cpu(i, cpu_online_mask))
+                        continue;
+                dest = per_cpu(x86_cpu_to_logical_apicid, i);
+                cluster = x2apic_cluster(i);
+                break;
+        }
 
-static unsigned int
-x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-                              const struct cpumask *andmask)
-{
-        int cpu;
+        if (!dest)
+                return -EINVAL;
 
-        /*
-         * We're using fixed IRQ delivery, can only return one logical APIC ID.
-         * May as well be the first.
-         */
-        for_each_cpu_and(cpu, cpumask, andmask) {
-                if (cpumask_test_cpu(cpu, cpu_online_mask))
-                        break;
+        for_each_cpu_and(i, cpumask, andmask) {
+                if (!cpumask_test_cpu(i, cpu_online_mask))
+                        continue;
+                if (cluster != x2apic_cluster(i))
+                        continue;
+                dest |= per_cpu(x86_cpu_to_logical_apicid, i);
         }
 
-        return per_cpu(x86_cpu_to_logical_apicid, cpu);
+        *apicid = dest;
+
+        return 0;
 }
 
 static void init_x2apic_ldr(void)
@@ -208,6 +209,32 @@ static int x2apic_cluster_probe(void)
                 return 0;
 }
 
+static const struct cpumask *x2apic_cluster_target_cpus(void)
+{
+        return cpu_all_mask;
+}
+
+/*
+ * Each x2apic cluster is an allocation domain.
+ */
+static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask,
+                                             const struct cpumask *mask)
+{
+        /*
+         * To minimize vector pressure, default case of boot, device bringup
+         * etc will use a single cpu for the interrupt destination.
+         *
+         * On explicit migration requests coming from irqbalance etc,
+         * interrupts will be routed to the x2apic cluster (cluster-id
+         * derived from the first cpu in the mask) members specified
+         * in the mask.
+         */
+        if (mask == x2apic_cluster_target_cpus())
+                cpumask_copy(retmask, cpumask_of(cpu));
+        else
+                cpumask_and(retmask, mask, per_cpu(cpus_in_cluster, cpu));
+}
+
 static struct apic apic_x2apic_cluster = {
 
         .name                           = "cluster x2apic",
@@ -219,13 +246,13 @@ static struct apic apic_x2apic_cluster = {
         .irq_delivery_mode              = dest_LowestPrio,
         .irq_dest_mode                  = 1, /* logical */
 
-        .target_cpus                    = x2apic_target_cpus,
+        .target_cpus                    = x2apic_cluster_target_cpus,
         .disable_esr                    = 0,
         .dest_logical                   = APIC_DEST_LOGICAL,
         .check_apicid_used              = NULL,
         .check_apicid_present           = NULL,
 
-        .vector_allocation_domain       = x2apic_vector_allocation_domain,
+        .vector_allocation_domain       = cluster_vector_allocation_domain,
         .init_apic_ldr                  = init_x2apic_ldr,
 
         .ioapic_phys_id_map             = NULL,
@@ -243,7 +270,6 @@ static struct apic apic_x2apic_cluster = {
         .set_apic_id                    = x2apic_set_apic_id,
         .apic_id_mask                   = 0xFFFFFFFFu,
 
-        .cpu_mask_to_apicid             = x2apic_cpu_mask_to_apicid,
         .cpu_mask_to_apicid_and         = x2apic_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = x2apic_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index c17e982db275..e03a1e180e81 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -76,38 +76,6 @@ static void x2apic_send_IPI_all(int vector)
         __x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC);
 }
 
-static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
-{
-        /*
-         * We're using fixed IRQ delivery, can only return one phys APIC ID.
-         * May as well be the first.
-         */
-        int cpu = cpumask_first(cpumask);
-
-        if ((unsigned)cpu < nr_cpu_ids)
-                return per_cpu(x86_cpu_to_apicid, cpu);
-        else
-                return BAD_APICID;
-}
-
-static unsigned int
-x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-                              const struct cpumask *andmask)
-{
-        int cpu;
-
-        /*
-         * We're using fixed IRQ delivery, can only return one phys APIC ID.
-         * May as well be the first.
-         */
-        for_each_cpu_and(cpu, cpumask, andmask) {
-                if (cpumask_test_cpu(cpu, cpu_online_mask))
-                        break;
-        }
-
-        return per_cpu(x86_cpu_to_apicid, cpu);
-}
-
 static void init_x2apic_ldr(void)
 {
 }
@@ -131,13 +99,13 @@ static struct apic apic_x2apic_phys = {
         .irq_delivery_mode              = dest_Fixed,
         .irq_dest_mode                  = 0, /* physical */
 
-        .target_cpus                    = x2apic_target_cpus,
+        .target_cpus                    = online_target_cpus,
         .disable_esr                    = 0,
         .dest_logical                   = 0,
         .check_apicid_used              = NULL,
         .check_apicid_present           = NULL,
 
-        .vector_allocation_domain       = x2apic_vector_allocation_domain,
+        .vector_allocation_domain       = default_vector_allocation_domain,
         .init_apic_ldr                  = init_x2apic_ldr,
 
         .ioapic_phys_id_map             = NULL,
@@ -155,8 +123,7 @@ static struct apic apic_x2apic_phys = {
         .set_apic_id                    = x2apic_set_apic_id,
         .apic_id_mask                   = 0xFFFFFFFFu,
 
-        .cpu_mask_to_apicid             = x2apic_cpu_mask_to_apicid,
-        .cpu_mask_to_apicid_and         = x2apic_cpu_mask_to_apicid_and,
+        .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = x2apic_send_IPI_mask,
         .send_IPI_mask_allbutself       = x2apic_send_IPI_mask_allbutself,
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index c6d03f7a4401..8cfade9510a4 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -185,17 +185,6 @@ EXPORT_SYMBOL_GPL(uv_possible_blades);
 unsigned long sn_rtc_cycles_per_second;
 EXPORT_SYMBOL(sn_rtc_cycles_per_second);
 
-static const struct cpumask *uv_target_cpus(void)
-{
-        return cpu_online_mask;
-}
-
-static void uv_vector_allocation_domain(int cpu, struct cpumask *retmask)
-{
-        cpumask_clear(retmask);
-        cpumask_set_cpu(cpu, retmask);
-}
-
 static int __cpuinit uv_wakeup_secondary(int phys_apicid, unsigned long start_rip)
 {
 #ifdef CONFIG_SMP
@@ -280,25 +269,12 @@ static void uv_init_apic_ldr(void)
 {
 }
 
-static unsigned int uv_cpu_mask_to_apicid(const struct cpumask *cpumask)
-{
-        /*
-         * We're using fixed IRQ delivery, can only return one phys APIC ID.
-         * May as well be the first.
-         */
-        int cpu = cpumask_first(cpumask);
-
-        if ((unsigned)cpu < nr_cpu_ids)
-                return per_cpu(x86_cpu_to_apicid, cpu) | uv_apicid_hibits;
-        else
-                return BAD_APICID;
-}
-
-static unsigned int
+static int
 uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-                          const struct cpumask *andmask)
+                          const struct cpumask *andmask,
+                          unsigned int *apicid)
 {
-        int cpu;
+        int unsigned cpu;
 
         /*
          * We're using fixed IRQ delivery, can only return one phys APIC ID.
@@ -308,7 +284,13 @@ uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
                 if (cpumask_test_cpu(cpu, cpu_online_mask))
                         break;
         }
-        return per_cpu(x86_cpu_to_apicid, cpu) | uv_apicid_hibits;
+
+        if (likely(cpu < nr_cpu_ids)) {
+                *apicid = per_cpu(x86_cpu_to_apicid, cpu) | uv_apicid_hibits;
+                return 0;
+        }
+
+        return -EINVAL;
 }
 
 static unsigned int x2apic_get_apic_id(unsigned long x)
@@ -362,13 +344,13 @@ static struct apic __refdata apic_x2apic_uv_x = {
         .irq_delivery_mode              = dest_Fixed,
         .irq_dest_mode                  = 0, /* physical */
 
-        .target_cpus                    = uv_target_cpus,
+        .target_cpus                    = online_target_cpus,
         .disable_esr                    = 0,
         .dest_logical                   = APIC_DEST_LOGICAL,
         .check_apicid_used              = NULL,
         .check_apicid_present           = NULL,
 
-        .vector_allocation_domain       = uv_vector_allocation_domain,
+        .vector_allocation_domain       = default_vector_allocation_domain,
         .init_apic_ldr                  = uv_init_apic_ldr,
 
         .ioapic_phys_id_map             = NULL,
@@ -386,7 +368,6 @@ static struct apic __refdata apic_x2apic_uv_x = {
         .set_apic_id                    = set_apic_id,
         .apic_id_mask                   = 0xFFFFFFFFu,
 
-        .cpu_mask_to_apicid             = uv_cpu_mask_to_apicid,
         .cpu_mask_to_apicid_and         = uv_cpu_mask_to_apicid_and,
 
         .send_IPI_mask                  = uv_send_IPI_mask,
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 07b0c0db466c..d65464e43503 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -201,6 +201,8 @@
  *    http://www.microsoft.com/whdc/archive/amp_12.mspx]
  */
 
+#define pr_fmt(fmt) "apm: " fmt
+
 #include <linux/module.h>
 
 #include <linux/poll.h>
@@ -485,11 +487,11 @@ static void apm_error(char *str, int err)
                 if (error_table[i].key == err)
                         break;
         if (i < ERROR_COUNT)
-                printk(KERN_NOTICE "apm: %s: %s\n", str, error_table[i].msg);
+                pr_notice("%s: %s\n", str, error_table[i].msg);
         else if (err < 0)
-                printk(KERN_NOTICE "apm: %s: linux error code %i\n", str, err);
+                pr_notice("%s: linux error code %i\n", str, err);
         else
-                printk(KERN_NOTICE "apm: %s: unknown error code %#2.2x\n",
+                pr_notice("%s: unknown error code %#2.2x\n",
                        str, err);
 }
 
@@ -1184,7 +1186,7 @@ static void queue_event(apm_event_t event, struct apm_user *sender)
                         static int notified;
 
                         if (notified++ == 0)
-                            printk(KERN_ERR "apm: an event queue overflowed\n");
+                                pr_err("an event queue overflowed\n");
                         if (++as->event_tail >= APM_MAX_EVENTS)
                                 as->event_tail = 0;
                 }
@@ -1447,7 +1449,7 @@ static void apm_mainloop(void)
 static int check_apm_user(struct apm_user *as, const char *func)
 {
         if (as == NULL || as->magic != APM_BIOS_MAGIC) {
-                printk(KERN_ERR "apm: %s passed bad filp\n", func);
+                pr_err("%s passed bad filp\n", func);
                 return 1;
         }
         return 0;
@@ -1586,7 +1588,7 @@ static int do_release(struct inode *inode, struct file *filp)
                      as1 = as1->next)
                         ;
                 if (as1 == NULL)
-                        printk(KERN_ERR "apm: filp not in user list\n");
+                        pr_err("filp not in user list\n");
                 else
                         as1->next = as->next;
         }
@@ -1600,11 +1602,9 @@ static int do_open(struct inode *inode, struct file *filp)
         struct apm_user *as;
 
         as = kmalloc(sizeof(*as), GFP_KERNEL);
-        if (as == NULL) {
-                printk(KERN_ERR "apm: cannot allocate struct of size %d bytes\n",
-                       sizeof(*as));
+        if (as == NULL)
                 return -ENOMEM;
-        }
+
         as->magic = APM_BIOS_MAGIC;
         as->event_tail = as->event_head = 0;
         as->suspends_pending = as->standbys_pending = 0;
@@ -2313,16 +2313,16 @@ static int __init apm_init(void)
         }
 
         if (apm_info.disabled) {
-                printk(KERN_NOTICE "apm: disabled on user request.\n");
+                pr_notice("disabled on user request.\n");
                 return -ENODEV;
         }
         if ((num_online_cpus() > 1) && !power_off && !smp) {
-                printk(KERN_NOTICE "apm: disabled - APM is not SMP safe.\n");
+                pr_notice("disabled - APM is not SMP safe.\n");
                 apm_info.disabled = 1;
                 return -ENODEV;
         }
         if (!acpi_disabled) {
-                printk(KERN_NOTICE "apm: overridden by ACPI.\n");
+                pr_notice("overridden by ACPI.\n");
                 apm_info.disabled = 1;
                 return -ENODEV;
         }
@@ -2356,8 +2356,7 @@ static int __init apm_init(void)
 
         kapmd_task = kthread_create(apm, NULL, "kapmd");
         if (IS_ERR(kapmd_task)) {
-                printk(KERN_ERR "apm: disabled - Unable to start kernel "
-                                "thread.\n");
+                pr_err("disabled - Unable to start kernel thread\n");
                 err = PTR_ERR(kapmd_task);
                 kapmd_task = NULL;
                 remove_proc_entry("apm", NULL);
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index 6ab6aa2fdfdd..bac4c3804cc7 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -32,7 +32,9 @@ obj-$(CONFIG_PERF_EVENTS)		+= perf_event.o
 
 ifdef CONFIG_PERF_EVENTS
 obj-$(CONFIG_CPU_SUP_AMD)               += perf_event_amd.o
-obj-$(CONFIG_CPU_SUP_INTEL)             += perf_event_p6.o perf_event_p4.o perf_event_intel_lbr.o perf_event_intel_ds.o perf_event_intel.o
+obj-$(CONFIG_CPU_SUP_INTEL)             += perf_event_p6.o perf_event_p4.o
+obj-$(CONFIG_CPU_SUP_INTEL)             += perf_event_intel_lbr.o perf_event_intel_ds.o perf_event_intel.o
+obj-$(CONFIG_CPU_SUP_INTEL)             += perf_event_intel_uncore.o
 endif
 
 obj-$(CONFIG_X86_MCE)                   += mcheck/
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 146bb6218eec..9d92e19039f0 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -19,6 +19,39 @@
 
 #include "cpu.h"
 
+static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
+{
+        struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
+        u32 gprs[8] = { 0 };
+        int err;
+
+        WARN_ONCE((c->x86 != 0xf), "%s should only be used on K8!\n", __func__);
+
+        gprs[1] = msr;
+        gprs[7] = 0x9c5a203a;
+
+        err = rdmsr_safe_regs(gprs);
+
+        *p = gprs[0] | ((u64)gprs[2] << 32);
+
+        return err;
+}
+
+static inline int wrmsrl_amd_safe(unsigned msr, unsigned long long val)
+{
+        struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
+        u32 gprs[8] = { 0 };
+
+        WARN_ONCE((c->x86 != 0xf), "%s should only be used on K8!\n", __func__);
+
+        gprs[0] = (u32)val;
+        gprs[1] = msr;
+        gprs[2] = val >> 32;
+        gprs[7] = 0x9c5a203a;
+
+        return wrmsr_safe_regs(gprs);
+}
+
 #ifdef CONFIG_X86_32
 /*
  *      B step AMD K6 before B 9730xxxx have hardware bugs that can cause
@@ -586,9 +619,9 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
             !cpu_has(c, X86_FEATURE_TOPOEXT)) {
                 u64 val;
 
-                if (!rdmsrl_amd_safe(0xc0011005, &val)) {
+                if (!rdmsrl_safe(0xc0011005, &val)) {
                         val |= 1ULL << 54;
-                        wrmsrl_amd_safe(0xc0011005, val);
+                        wrmsrl_safe(0xc0011005, val);
                         rdmsrl(0xc0011005, val);
                         if (val & (1ULL << 54)) {
                                 set_cpu_cap(c, X86_FEATURE_TOPOEXT);
@@ -679,7 +712,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
                 err = rdmsrl_safe(MSR_AMD64_MCx_MASK(4), &mask);
                 if (err == 0) {
                         mask |= (1 << 10);
-                        checking_wrmsrl(MSR_AMD64_MCx_MASK(4), mask);
+                        wrmsrl_safe(MSR_AMD64_MCx_MASK(4), mask);
                 }
         }
 
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 46674fbb62ba..c97bb7b5a9f8 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -55,8 +55,8 @@ static void __init check_fpu(void)
 
         if (!boot_cpu_data.hard_math) {
 #ifndef CONFIG_MATH_EMULATION
-                printk(KERN_EMERG "No coprocessor found and no math emulation present.\n");
-                printk(KERN_EMERG "Giving up.\n");
+                pr_emerg("No coprocessor found and no math emulation present\n");
+                pr_emerg("Giving up\n");
                 for (;;) ;
 #endif
                 return;
@@ -86,7 +86,7 @@ static void __init check_fpu(void)
 
         boot_cpu_data.fdiv_bug = fdiv_bug;
         if (boot_cpu_data.fdiv_bug)
-                printk(KERN_WARNING "Hmm, FPU with FDIV bug.\n");
+                pr_warn("Hmm, FPU with FDIV bug\n");
 }
 
 static void __init check_hlt(void)
@@ -94,16 +94,16 @@ static void __init check_hlt(void)
         if (boot_cpu_data.x86 >= 5 || paravirt_enabled())
                 return;
 
-        printk(KERN_INFO "Checking 'hlt' instruction... ");
+        pr_info("Checking 'hlt' instruction... ");
         if (!boot_cpu_data.hlt_works_ok) {
-                printk("disabled\n");
+                pr_cont("disabled\n");
                 return;
         }
         halt();
         halt();
         halt();
         halt();
-        printk(KERN_CONT "OK.\n");
+        pr_cont("OK\n");
 }
 
 /*
@@ -116,7 +116,7 @@ static void __init check_popad(void)
 #ifndef CONFIG_X86_POPAD_OK
         int res, inp = (int) &res;
 
-        printk(KERN_INFO "Checking for popad bug... ");
+        pr_info("Checking for popad bug... ");
         __asm__ __volatile__(
           "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx "
           : "=&a" (res)
@@ -127,9 +127,9 @@ static void __init check_popad(void)
          * CPU hard. Too bad.
          */
         if (res != 12345678)
-                printk(KERN_CONT "Buggy.\n");
+                pr_cont("Buggy\n");
         else
-                printk(KERN_CONT "OK.\n");
+                pr_cont("OK\n");
 #endif
 }
 
@@ -161,7 +161,7 @@ void __init check_bugs(void)
 {
         identify_boot_cpu();
 #ifndef CONFIG_SMP
-        printk(KERN_INFO "CPU: ");
+        pr_info("CPU: ");
         print_cpu_info(&boot_cpu_data);
 #endif
         check_config();
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 6b9333b429ba..5bbc082c47ad 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -947,7 +947,7 @@ static void __cpuinit __print_cpu_msr(void)
                 index_max = msr_range_array[i].max;
 
                 for (index = index_min; index < index_max; index++) {
-                        if (rdmsrl_amd_safe(index, &val))
+                        if (rdmsrl_safe(index, &val))
                                 continue;
                         printk(KERN_INFO " MSR%08x: %016llx\n", index, val);
                 }
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index da27c5d2168a..5a5a5dc1ff15 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -7,6 +7,9 @@
  * Copyright 2008 Intel Corporation
  * Author: Andi Kleen
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/thread_info.h>
 #include <linux/capability.h>
 #include <linux/miscdevice.h>
@@ -210,7 +213,7 @@ static void drain_mcelog_buffer(void)
                                 cpu_relax();
 
                                 if (!m->finished && retries >= 4) {
-                                        pr_err("MCE: skipping error being logged currently!\n");
+                                        pr_err("skipping error being logged currently!\n");
                                         break;
                                 }
                         }
@@ -1167,8 +1170,9 @@ int memory_failure(unsigned long pfn, int vector, int flags)
 {
         /* mce_severity() should not hand us an ACTION_REQUIRED error */
         BUG_ON(flags & MF_ACTION_REQUIRED);
-        printk(KERN_ERR "Uncorrected memory error in page 0x%lx ignored\n"
-                "Rebuild kernel with CONFIG_MEMORY_FAILURE=y for smarter handling\n", pfn);
+        pr_err("Uncorrected memory error in page 0x%lx ignored\n"
+               "Rebuild kernel with CONFIG_MEMORY_FAILURE=y for smarter handling\n",
+               pfn);
 
         return 0;
 }
@@ -1358,11 +1362,10 @@ static int __cpuinit __mcheck_cpu_cap_init(void)
 
         b = cap & MCG_BANKCNT_MASK;
         if (!banks)
-                printk(KERN_INFO "mce: CPU supports %d MCE banks\n", b);
+                pr_info("CPU supports %d MCE banks\n", b);
 
         if (b > MAX_NR_BANKS) {
-                printk(KERN_WARNING
-                       "MCE: Using only %u machine check banks out of %u\n",
+                pr_warn("Using only %u machine check banks out of %u\n",
                         MAX_NR_BANKS, b);
                 b = MAX_NR_BANKS;
         }
@@ -1419,7 +1422,7 @@ static void __mcheck_cpu_init_generic(void)
 static int __cpuinit __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c)
 {
         if (c->x86_vendor == X86_VENDOR_UNKNOWN) {
-                pr_info("MCE: unknown CPU type - not enabling MCE support.\n");
+                pr_info("unknown CPU type - not enabling MCE support\n");
                 return -EOPNOTSUPP;
         }
 
@@ -1574,7 +1577,7 @@ static void __mcheck_cpu_init_timer(void)
 /* Handle unconfigured int18 (should never happen) */
 static void unexpected_machine_check(struct pt_regs *regs, long error_code)
 {
-        printk(KERN_ERR "CPU#%d: Unexpected int18 (Machine Check).\n",
+        pr_err("CPU#%d: Unexpected int18 (Machine Check)\n",
                smp_processor_id());
 }
 
@@ -1893,8 +1896,7 @@ static int __init mcheck_enable(char *str)
                         get_option(&str, &monarch_timeout);
                 }
         } else {
-                printk(KERN_INFO "mce argument %s ignored. Please use /sys\n",
-                       str);
+                pr_info("mce argument %s ignored. Please use /sys\n", str);
                 return 0;
         }
         return 1;
diff --git a/arch/x86/kernel/cpu/mtrr/cleanup.c b/arch/x86/kernel/cpu/mtrr/cleanup.c
index bdda2e6c673b..35ffda5d0727 100644
--- a/arch/x86/kernel/cpu/mtrr/cleanup.c
+++ b/arch/x86/kernel/cpu/mtrr/cleanup.c
@@ -258,11 +258,11 @@ range_to_mtrr(unsigned int reg, unsigned long range_startk,
 
                 /* Compute the maximum size with which we can make a range: */
                 if (range_startk)
-                        max_align = ffs(range_startk) - 1;
+                        max_align = __ffs(range_startk);
                 else
-                        max_align = 32;
+                        max_align = BITS_PER_LONG - 1;
 
-                align = fls(range_sizek) - 1;
+                align = __fls(range_sizek);
                 if (align > max_align)
                         align = max_align;
 
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 75772ae6c65f..e9fe907cd249 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -361,11 +361,7 @@ static void __init print_mtrr_state(void)
         }
         pr_debug("MTRR variable ranges %sabled:\n",
                  mtrr_state.enabled & 2 ? "en" : "dis");
-        if (size_or_mask & 0xffffffffUL)
-                high_width = ffs(size_or_mask & 0xffffffffUL) - 1;
-        else
-                high_width = ffs(size_or_mask>>32) + 32 - 1;
-        high_width = (high_width - (32 - PAGE_SHIFT) + 3) / 4;
+        high_width = (__ffs64(size_or_mask) - (32 - PAGE_SHIFT) + 3) / 4;
 
         for (i = 0; i < num_var_ranges; ++i) {
                 if (mtrr_state.var_ranges[i].mask_lo & (1 << 11))
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index c4706cf9c011..29557aa06dda 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -35,17 +35,6 @@
 
 #include "perf_event.h"
 
-#if 0
-#undef wrmsrl
-#define wrmsrl(msr, val)                                        \
-do {                                                            \
-        trace_printk("wrmsrl(%lx, %lx)\n", (unsigned long)(msr),\
-                        (unsigned long)(val));                  \
-        native_write_msr((msr), (u32)((u64)(val)),              \
-                        (u32)((u64)(val) >> 32));               \
-} while (0)
-#endif
-
 struct x86_pmu x86_pmu __read_mostly;
 
 DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = {
@@ -74,7 +63,7 @@ u64 x86_perf_event_update(struct perf_event *event)
         int idx = hwc->idx;
         s64 delta;
 
-        if (idx == X86_PMC_IDX_FIXED_BTS)
+        if (idx == INTEL_PMC_IDX_FIXED_BTS)
                 return 0;
 
         /*
@@ -86,7 +75,7 @@ u64 x86_perf_event_update(struct perf_event *event)
          */
 again:
         prev_raw_count = local64_read(&hwc->prev_count);
-        rdmsrl(hwc->event_base, new_raw_count);
+        rdpmcl(hwc->event_base_rdpmc, new_raw_count);
 
         if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
                                         new_raw_count) != prev_raw_count)
@@ -189,7 +178,7 @@ static void release_pmc_hardware(void) {}
 
 static bool check_hw_exists(void)
 {
-        u64 val, val_new = 0;
+        u64 val, val_new = ~0;
         int i, reg, ret = 0;
 
         /*
@@ -222,8 +211,9 @@ static bool check_hw_exists(void)
          * that don't trap on the MSR access and always return 0s.
          */
         val = 0xabcdUL;
-        ret = checking_wrmsrl(x86_pmu_event_addr(0), val);
-        ret |= rdmsrl_safe(x86_pmu_event_addr(0), &val_new);
+        reg = x86_pmu_event_addr(0);
+        ret = wrmsrl_safe(reg, val);
+        ret |= rdmsrl_safe(reg, &val_new);
         if (ret || val != val_new)
                 goto msr_fail;
 
@@ -240,6 +230,7 @@ bios_fail:
 
 msr_fail:
         printk(KERN_CONT "Broken PMU hardware detected, using software events only.\n");
+        printk(KERN_ERR "Failed to access perfctr msr (MSR %x is %Lx)\n", reg, val_new);
 
         return false;
 }
@@ -388,7 +379,7 @@ int x86_pmu_hw_config(struct perf_event *event)
                 int precise = 0;
 
                 /* Support for constant skid */
-                if (x86_pmu.pebs_active) {
+                if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
                         precise++;
 
                         /* Support for IP fixup */
@@ -637,8 +628,8 @@ static bool __perf_sched_find_counter(struct perf_sched *sched)
         c = sched->constraints[sched->state.event];
 
         /* Prefer fixed purpose counters */
-        if (x86_pmu.num_counters_fixed) {
-                idx = X86_PMC_IDX_FIXED;
+        if (c->idxmsk64 & (~0ULL << INTEL_PMC_IDX_FIXED)) {
+                idx = INTEL_PMC_IDX_FIXED;
                 for_each_set_bit_from(idx, c->idxmsk, X86_PMC_IDX_MAX) {
                         if (!__test_and_set_bit(idx, sched->state.used))
                                 goto done;
@@ -646,7 +637,7 @@ static bool __perf_sched_find_counter(struct perf_sched *sched)
         }
         /* Grab the first unused counter starting with idx */
         idx = sched->state.counter;
-        for_each_set_bit_from(idx, c->idxmsk, X86_PMC_IDX_FIXED) {
+        for_each_set_bit_from(idx, c->idxmsk, INTEL_PMC_IDX_FIXED) {
                 if (!__test_and_set_bit(idx, sched->state.used))
                         goto done;
         }
@@ -704,8 +695,8 @@ static bool perf_sched_next_event(struct perf_sched *sched)
 /*
  * Assign a counter for each event.
  */
-static int perf_assign_events(struct event_constraint **constraints, int n,
-                              int wmin, int wmax, int *assign)
+int perf_assign_events(struct event_constraint **constraints, int n,
+                        int wmin, int wmax, int *assign)
 {
         struct perf_sched sched;
 
@@ -824,15 +815,17 @@ static inline void x86_assign_hw_event(struct perf_event *event,
         hwc->last_cpu = smp_processor_id();
         hwc->last_tag = ++cpuc->tags[i];
 
-        if (hwc->idx == X86_PMC_IDX_FIXED_BTS) {
+        if (hwc->idx == INTEL_PMC_IDX_FIXED_BTS) {
                 hwc->config_base = 0;
                 hwc->event_base = 0;
-        } else if (hwc->idx >= X86_PMC_IDX_FIXED) {
+        } else if (hwc->idx >= INTEL_PMC_IDX_FIXED) {
                 hwc->config_base = MSR_ARCH_PERFMON_FIXED_CTR_CTRL;
-                hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0 + (hwc->idx - X86_PMC_IDX_FIXED);
+                hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0 + (hwc->idx - INTEL_PMC_IDX_FIXED);
+                hwc->event_base_rdpmc = (hwc->idx - INTEL_PMC_IDX_FIXED) | 1<<30;
         } else {
                 hwc->config_base = x86_pmu_config_addr(hwc->idx);
                 hwc->event_base  = x86_pmu_event_addr(hwc->idx);
+                hwc->event_base_rdpmc = hwc->idx;
         }
 }
 
@@ -930,7 +923,7 @@ int x86_perf_event_set_period(struct perf_event *event)
         s64 period = hwc->sample_period;
         int ret = 0, idx = hwc->idx;
 
-        if (idx == X86_PMC_IDX_FIXED_BTS)
+        if (idx == INTEL_PMC_IDX_FIXED_BTS)
                 return 0;
 
         /*
@@ -1316,7 +1309,6 @@ static struct attribute_group x86_pmu_format_group = {
 static int __init init_hw_perf_events(void)
 {
         struct x86_pmu_quirk *quirk;
-        struct event_constraint *c;
         int err;
 
         pr_info("Performance Events: ");
@@ -1347,21 +1339,8 @@ static int __init init_hw_perf_events(void)
         for (quirk = x86_pmu.quirks; quirk; quirk = quirk->next)
                 quirk->func();
 
-        if (x86_pmu.num_counters > X86_PMC_MAX_GENERIC) {
-                WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!",
-                     x86_pmu.num_counters, X86_PMC_MAX_GENERIC);
-                x86_pmu.num_counters = X86_PMC_MAX_GENERIC;
-        }
-        x86_pmu.intel_ctrl = (1 << x86_pmu.num_counters) - 1;
-
-        if (x86_pmu.num_counters_fixed > X86_PMC_MAX_FIXED) {
-                WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!",
-                     x86_pmu.num_counters_fixed, X86_PMC_MAX_FIXED);
-                x86_pmu.num_counters_fixed = X86_PMC_MAX_FIXED;
-        }
-
-        x86_pmu.intel_ctrl |=
-                ((1LL << x86_pmu.num_counters_fixed)-1) << X86_PMC_IDX_FIXED;
+        if (!x86_pmu.intel_ctrl)
+                x86_pmu.intel_ctrl = (1 << x86_pmu.num_counters) - 1;
 
         perf_events_lapic_init();
         register_nmi_handler(NMI_LOCAL, perf_event_nmi_handler, 0, "PMI");
@@ -1370,22 +1349,6 @@ static int __init init_hw_perf_events(void)
                 __EVENT_CONSTRAINT(0, (1ULL << x86_pmu.num_counters) - 1,
                                    0, x86_pmu.num_counters, 0);
 
-        if (x86_pmu.event_constraints) {
-                /*
-                 * event on fixed counter2 (REF_CYCLES) only works on this
-                 * counter, so do not extend mask to generic counters
-                 */
-                for_each_event_constraint(c, x86_pmu.event_constraints) {
-                        if (c->cmask != X86_RAW_EVENT_MASK
-                            || c->idxmsk64 == X86_PMC_MSK_FIXED_REF_CYCLES) {
-                                continue;
-                        }
-
-                        c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
-                        c->weight += x86_pmu.num_counters;
-                }
-        }
-
         x86_pmu.attr_rdpmc = 1; /* enable userspace RDPMC usage by default */
         x86_pmu_format_group.attrs = x86_pmu.format_attrs;
 
@@ -1620,8 +1583,8 @@ static int x86_pmu_event_idx(struct perf_event *event)
         if (!x86_pmu.attr_rdpmc)
                 return 0;
 
-        if (x86_pmu.num_counters_fixed && idx >= X86_PMC_IDX_FIXED) {
-                idx -= X86_PMC_IDX_FIXED;
+        if (x86_pmu.num_counters_fixed && idx >= INTEL_PMC_IDX_FIXED) {
+                idx -= INTEL_PMC_IDX_FIXED;
                 idx |= 1 << 30;
         }
 
@@ -1649,7 +1612,12 @@ static ssize_t set_attr_rdpmc(struct device *cdev,
                               struct device_attribute *attr,
                               const char *buf, size_t count)
 {
-        unsigned long val = simple_strtoul(buf, NULL, 0);
+        unsigned long val;
+        ssize_t ret;
+
+        ret = kstrtoul(buf, 0, &val);
+        if (ret)
+                return ret;
 
         if (!!val != !!x86_pmu.attr_rdpmc) {
                 x86_pmu.attr_rdpmc = !!val;
@@ -1682,13 +1650,20 @@ static void x86_pmu_flush_branch_stack(void)
                 x86_pmu.flush_branch_stack();
 }
 
+void perf_check_microcode(void)
+{
+        if (x86_pmu.check_microcode)
+                x86_pmu.check_microcode();
+}
+EXPORT_SYMBOL_GPL(perf_check_microcode);
+
 static struct pmu pmu = {
         .pmu_enable             = x86_pmu_enable,
         .pmu_disable            = x86_pmu_disable,
 
-        .attr_groups    = x86_pmu_attr_groups,
+        .attr_groups            = x86_pmu_attr_groups,
 
-        .event_init     = x86_pmu_event_init,
+        .event_init             = x86_pmu_event_init,
 
         .add                    = x86_pmu_add,
         .del                    = x86_pmu_del,
@@ -1696,11 +1671,11 @@ static struct pmu pmu = {
         .stop                   = x86_pmu_stop,
         .read                   = x86_pmu_read,
 
-        .start_txn      = x86_pmu_start_txn,
-        .cancel_txn     = x86_pmu_cancel_txn,
-        .commit_txn     = x86_pmu_commit_txn,
+        .start_txn              = x86_pmu_start_txn,
+        .cancel_txn             = x86_pmu_cancel_txn,
+        .commit_txn             = x86_pmu_commit_txn,
 
-        .event_idx      = x86_pmu_event_idx,
+        .event_idx              = x86_pmu_event_idx,
         .flush_branch_stack     = x86_pmu_flush_branch_stack,
 };
 
@@ -1863,7 +1838,7 @@ unsigned long perf_misc_flags(struct pt_regs *regs)
                 else
                         misc |= PERF_RECORD_MISC_GUEST_KERNEL;
         } else {
-                if (user_mode(regs))
+                if (!kernel_ip(regs->ip))
                         misc |= PERF_RECORD_MISC_USER;
                 else
                         misc |= PERF_RECORD_MISC_KERNEL;
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 7241e2fc3c17..a15df4be151f 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -14,6 +14,18 @@
 
 #include <linux/perf_event.h>
 
+#if 0
+#undef wrmsrl
+#define wrmsrl(msr, val)                                                \
+do {                                                                    \
+        unsigned int _msr = (msr);                                      \
+        u64 _val = (val);                                               \
+        trace_printk("wrmsrl(%x, %Lx)\n", (unsigned int)(_msr),         \
+                        (unsigned long long)(_val));                    \
+        native_write_msr((_msr), (u32)(_val), (u32)(_val >> 32));       \
+} while (0)
+#endif
+
 /*
  *          |   NHM/WSM    |      SNB     |
  * register -------------------------------
@@ -57,7 +69,7 @@ struct amd_nb {
 };
 
 /* The maximal number of PEBS events: */
-#define MAX_PEBS_EVENTS         4
+#define MAX_PEBS_EVENTS         8
 
 /*
  * A debug store configuration.
@@ -349,6 +361,8 @@ struct x86_pmu {
         void            (*cpu_starting)(int cpu);
         void            (*cpu_dying)(int cpu);
         void            (*cpu_dead)(int cpu);
+
+        void            (*check_microcode)(void);
         void            (*flush_branch_stack)(void);
 
         /*
@@ -360,12 +374,16 @@ struct x86_pmu {
         /*
          * Intel DebugStore bits
          */
-        int             bts, pebs;
-        int             bts_active, pebs_active;
+        int             bts             :1,
+                        bts_active      :1,
+                        pebs            :1,
+                        pebs_active     :1,
+                        pebs_broken     :1;
         int             pebs_record_size;
         void            (*drain_pebs)(struct pt_regs *regs);
         struct event_constraint *pebs_constraints;
         void            (*pebs_aliases)(struct perf_event *event);
+        int             max_pebs_events;
 
         /*
          * Intel LBR
@@ -468,6 +486,8 @@ static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,
 
 void x86_pmu_enable_all(int added);
 
+int perf_assign_events(struct event_constraint **constraints, int n,
+                        int wmin, int wmax, int *assign);
 int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign);
 
 void x86_pmu_stop(struct perf_event *event, int flags);
diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
index 11a4eb9131d5..4528ae7b6ec4 100644
--- a/arch/x86/kernel/cpu/perf_event_amd.c
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -366,7 +366,7 @@ static void amd_pmu_cpu_starting(int cpu)
 
         cpuc->perf_ctr_virt_mask = AMD_PERFMON_EVENTSEL_HOSTONLY;
 
-        if (boot_cpu_data.x86_max_cores < 2 || boot_cpu_data.x86 == 0x15)
+        if (boot_cpu_data.x86_max_cores < 2)
                 return;
 
         nb_id = amd_get_nb_id(cpu);
@@ -422,35 +422,6 @@ static struct attribute *amd_format_attr[] = {
         NULL,
 };
 
-static __initconst const struct x86_pmu amd_pmu = {
-        .name                   = "AMD",
-        .handle_irq             = x86_pmu_handle_irq,
-        .disable_all            = x86_pmu_disable_all,
-        .enable_all             = x86_pmu_enable_all,
-        .enable                 = x86_pmu_enable_event,
-        .disable                = x86_pmu_disable_event,
-        .hw_config              = amd_pmu_hw_config,
-        .schedule_events        = x86_schedule_events,
-        .eventsel               = MSR_K7_EVNTSEL0,
-        .perfctr                = MSR_K7_PERFCTR0,
-        .event_map              = amd_pmu_event_map,
-        .max_events             = ARRAY_SIZE(amd_perfmon_event_map),
-        .num_counters           = AMD64_NUM_COUNTERS,
-        .cntval_bits            = 48,
-        .cntval_mask            = (1ULL << 48) - 1,
-        .apic                   = 1,
-        /* use highest bit to detect overflow */
-        .max_period             = (1ULL << 47) - 1,
-        .get_event_constraints  = amd_get_event_constraints,
-        .put_event_constraints  = amd_put_event_constraints,
-
-        .format_attrs           = amd_format_attr,
-
-        .cpu_prepare            = amd_pmu_cpu_prepare,
-        .cpu_starting           = amd_pmu_cpu_starting,
-        .cpu_dead               = amd_pmu_cpu_dead,
-};
-
 /* AMD Family 15h */
 
 #define AMD_EVENT_TYPE_MASK     0x000000F0ULL
@@ -597,8 +568,8 @@ amd_get_event_constraints_f15h(struct cpu_hw_events *cpuc, struct perf_event *ev
         }
 }
 
-static __initconst const struct x86_pmu amd_pmu_f15h = {
-        .name                   = "AMD Family 15h",
+static __initconst const struct x86_pmu amd_pmu = {
+        .name                   = "AMD",
         .handle_irq             = x86_pmu_handle_irq,
         .disable_all            = x86_pmu_disable_all,
         .enable_all             = x86_pmu_enable_all,
@@ -606,50 +577,68 @@ static __initconst const struct x86_pmu amd_pmu_f15h = {
         .disable                = x86_pmu_disable_event,
         .hw_config              = amd_pmu_hw_config,
         .schedule_events        = x86_schedule_events,
-        .eventsel               = MSR_F15H_PERF_CTL,
-        .perfctr                = MSR_F15H_PERF_CTR,
+        .eventsel               = MSR_K7_EVNTSEL0,
+        .perfctr                = MSR_K7_PERFCTR0,
         .event_map              = amd_pmu_event_map,
         .max_events             = ARRAY_SIZE(amd_perfmon_event_map),
-        .num_counters           = AMD64_NUM_COUNTERS_F15H,
+        .num_counters           = AMD64_NUM_COUNTERS,
         .cntval_bits            = 48,
         .cntval_mask            = (1ULL << 48) - 1,
         .apic                   = 1,
         /* use highest bit to detect overflow */
         .max_period             = (1ULL << 47) - 1,
-        .get_event_constraints  = amd_get_event_constraints_f15h,
-        /* nortbridge counters not yet implemented: */
-#if 0
+        .get_event_constraints  = amd_get_event_constraints,
         .put_event_constraints  = amd_put_event_constraints,
 
+        .format_attrs           = amd_format_attr,
+
         .cpu_prepare            = amd_pmu_cpu_prepare,
-        .cpu_dead               = amd_pmu_cpu_dead,
-#endif
         .cpu_starting           = amd_pmu_cpu_starting,
-        .format_attrs           = amd_format_attr,
+        .cpu_dead               = amd_pmu_cpu_dead,
 };
 
+static int setup_event_constraints(void)
+{
+        if (boot_cpu_data.x86 >= 0x15)
+                x86_pmu.get_event_constraints = amd_get_event_constraints_f15h;
+        return 0;
+}
+
+static int setup_perfctr_core(void)
+{
+        if (!cpu_has_perfctr_core) {
+                WARN(x86_pmu.get_event_constraints == amd_get_event_constraints_f15h,
+                     KERN_ERR "Odd, counter constraints enabled but no core perfctrs detected!");
+                return -ENODEV;
+        }
+
+        WARN(x86_pmu.get_event_constraints == amd_get_event_constraints,
+             KERN_ERR "hw perf events core counters need constraints handler!");
+
+        /*
+         * If core performance counter extensions exists, we must use
+         * MSR_F15H_PERF_CTL/MSR_F15H_PERF_CTR msrs. See also
+         * x86_pmu_addr_offset().
+         */
+        x86_pmu.eventsel        = MSR_F15H_PERF_CTL;
+        x86_pmu.perfctr         = MSR_F15H_PERF_CTR;
+        x86_pmu.num_counters    = AMD64_NUM_COUNTERS_CORE;
+
+        printk(KERN_INFO "perf: AMD core performance counters detected\n");
+
+        return 0;
+}
+
 __init int amd_pmu_init(void)
 {
         /* Performance-monitoring supported from K7 and later: */
         if (boot_cpu_data.x86 < 6)
                 return -ENODEV;
 
-        /*
-         * If core performance counter extensions exists, it must be
-         * family 15h, otherwise fail. See x86_pmu_addr_offset().
-         */
-        switch (boot_cpu_data.x86) {
-        case 0x15:
-                if (!cpu_has_perfctr_core)
-                        return -ENODEV;
-                x86_pmu = amd_pmu_f15h;
-                break;
-        default:
-                if (cpu_has_perfctr_core)
-                        return -ENODEV;
-                x86_pmu = amd_pmu;
-                break;
-        }
+        x86_pmu = amd_pmu;
+
+        setup_event_constraints();
+        setup_perfctr_core();
 
         /* Events are common for all AMDs */
         memcpy(hw_cache_event_ids, amd_hw_cache_event_ids,
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 187c294bc658..7a8b9d0abcaa 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -5,6 +5,8 @@
  * among events on a single PMU.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/stddef.h>
 #include <linux/types.h>
 #include <linux/init.h>
@@ -21,14 +23,14 @@
  */
 static u64 intel_perfmon_event_map[PERF_COUNT_HW_MAX] __read_mostly =
 {
-  [PERF_COUNT_HW_CPU_CYCLES]            = 0x003c,
-  [PERF_COUNT_HW_INSTRUCTIONS]          = 0x00c0,
-  [PERF_COUNT_HW_CACHE_REFERENCES]      = 0x4f2e,
-  [PERF_COUNT_HW_CACHE_MISSES]          = 0x412e,
-  [PERF_COUNT_HW_BRANCH_INSTRUCTIONS]   = 0x00c4,
-  [PERF_COUNT_HW_BRANCH_MISSES]         = 0x00c5,
-  [PERF_COUNT_HW_BUS_CYCLES]            = 0x013c,
-  [PERF_COUNT_HW_REF_CPU_CYCLES]        = 0x0300, /* pseudo-encoding */
+        [PERF_COUNT_HW_CPU_CYCLES]              = 0x003c,
+        [PERF_COUNT_HW_INSTRUCTIONS]            = 0x00c0,
+        [PERF_COUNT_HW_CACHE_REFERENCES]        = 0x4f2e,
+        [PERF_COUNT_HW_CACHE_MISSES]            = 0x412e,
+        [PERF_COUNT_HW_BRANCH_INSTRUCTIONS]     = 0x00c4,
+        [PERF_COUNT_HW_BRANCH_MISSES]           = 0x00c5,
+        [PERF_COUNT_HW_BUS_CYCLES]              = 0x013c,
+        [PERF_COUNT_HW_REF_CPU_CYCLES]          = 0x0300, /* pseudo-encoding */
 };
 
 static struct event_constraint intel_core_event_constraints[] __read_mostly =
@@ -747,7 +749,7 @@ static void intel_pmu_disable_all(void)
 
         wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0);
 
-        if (test_bit(X86_PMC_IDX_FIXED_BTS, cpuc->active_mask))
+        if (test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask))
                 intel_pmu_disable_bts();
 
         intel_pmu_pebs_disable_all();
@@ -763,9 +765,9 @@ static void intel_pmu_enable_all(int added)
         wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL,
                         x86_pmu.intel_ctrl & ~cpuc->intel_ctrl_guest_mask);
 
-        if (test_bit(X86_PMC_IDX_FIXED_BTS, cpuc->active_mask)) {
+        if (test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask)) {
                 struct perf_event *event =
-                        cpuc->events[X86_PMC_IDX_FIXED_BTS];
+                        cpuc->events[INTEL_PMC_IDX_FIXED_BTS];
 
                 if (WARN_ON_ONCE(!event))
                         return;
@@ -871,7 +873,7 @@ static inline void intel_pmu_ack_status(u64 ack)
 
 static void intel_pmu_disable_fixed(struct hw_perf_event *hwc)
 {
-        int idx = hwc->idx - X86_PMC_IDX_FIXED;
+        int idx = hwc->idx - INTEL_PMC_IDX_FIXED;
         u64 ctrl_val, mask;
 
         mask = 0xfULL << (idx * 4);
@@ -886,7 +888,7 @@ static void intel_pmu_disable_event(struct perf_event *event)
         struct hw_perf_event *hwc = &event->hw;
         struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
 
-        if (unlikely(hwc->idx == X86_PMC_IDX_FIXED_BTS)) {
+        if (unlikely(hwc->idx == INTEL_PMC_IDX_FIXED_BTS)) {
                 intel_pmu_disable_bts();
                 intel_pmu_drain_bts_buffer();
                 return;
@@ -915,7 +917,7 @@ static void intel_pmu_disable_event(struct perf_event *event)
 
 static void intel_pmu_enable_fixed(struct hw_perf_event *hwc)
 {
-        int idx = hwc->idx - X86_PMC_IDX_FIXED;
+        int idx = hwc->idx - INTEL_PMC_IDX_FIXED;
         u64 ctrl_val, bits, mask;
 
         /*
@@ -949,7 +951,7 @@ static void intel_pmu_enable_event(struct perf_event *event)
         struct hw_perf_event *hwc = &event->hw;
         struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
 
-        if (unlikely(hwc->idx == X86_PMC_IDX_FIXED_BTS)) {
+        if (unlikely(hwc->idx == INTEL_PMC_IDX_FIXED_BTS)) {
                 if (!__this_cpu_read(cpu_hw_events.enabled))
                         return;
 
@@ -1000,14 +1002,14 @@ static void intel_pmu_reset(void)
 
         local_irq_save(flags);
 
-        printk("clearing PMU state on CPU#%d\n", smp_processor_id());
+        pr_info("clearing PMU state on CPU#%d\n", smp_processor_id());
 
         for (idx = 0; idx < x86_pmu.num_counters; idx++) {
-                checking_wrmsrl(x86_pmu_config_addr(idx), 0ull);
-                checking_wrmsrl(x86_pmu_event_addr(idx),  0ull);
+                wrmsrl_safe(x86_pmu_config_addr(idx), 0ull);
+                wrmsrl_safe(x86_pmu_event_addr(idx),  0ull);
         }
         for (idx = 0; idx < x86_pmu.num_counters_fixed; idx++)
-                checking_wrmsrl(MSR_ARCH_PERFMON_FIXED_CTR0 + idx, 0ull);
+                wrmsrl_safe(MSR_ARCH_PERFMON_FIXED_CTR0 + idx, 0ull);
 
         if (ds)
                 ds->bts_index = ds->bts_buffer_base;
@@ -1707,16 +1709,61 @@ static __init void intel_clovertown_quirk(void)
          * But taken together it might just make sense to not enable PEBS on
          * these chips.
          */
-        printk(KERN_WARNING "PEBS disabled due to CPU errata.\n");
+        pr_warn("PEBS disabled due to CPU errata\n");
         x86_pmu.pebs = 0;
         x86_pmu.pebs_constraints = NULL;
 }
 
+static int intel_snb_pebs_broken(int cpu)
+{
+        u32 rev = UINT_MAX; /* default to broken for unknown models */
+
+        switch (cpu_data(cpu).x86_model) {
+        case 42: /* SNB */
+                rev = 0x28;
+                break;
+
+        case 45: /* SNB-EP */
+                switch (cpu_data(cpu).x86_mask) {
+                case 6: rev = 0x618; break;
+                case 7: rev = 0x70c; break;
+                }
+        }
+
+        return (cpu_data(cpu).microcode < rev);
+}
+
+static void intel_snb_check_microcode(void)
+{
+        int pebs_broken = 0;
+        int cpu;
+
+        get_online_cpus();
+        for_each_online_cpu(cpu) {
+                if ((pebs_broken = intel_snb_pebs_broken(cpu)))
+                        break;
+        }
+        put_online_cpus();
+
+        if (pebs_broken == x86_pmu.pebs_broken)
+                return;
+
+        /*
+         * Serialized by the microcode lock..
+         */
+        if (x86_pmu.pebs_broken) {
+                pr_info("PEBS enabled due to microcode update\n");
+                x86_pmu.pebs_broken = 0;
+        } else {
+                pr_info("PEBS disabled due to CPU errata, please upgrade microcode\n");
+                x86_pmu.pebs_broken = 1;
+        }
+}
+
 static __init void intel_sandybridge_quirk(void)
 {
-        printk(KERN_WARNING "PEBS disabled due to CPU errata.\n");
-        x86_pmu.pebs = 0;
-        x86_pmu.pebs_constraints = NULL;
+        x86_pmu.check_microcode = intel_snb_check_microcode;
+        intel_snb_check_microcode();
 }
 
 static const struct { int id; char *name; } intel_arch_events_map[] __initconst = {
@@ -1736,8 +1783,8 @@ static __init void intel_arch_events_quirk(void)
         /* disable event that reported as not presend by cpuid */
         for_each_set_bit(bit, x86_pmu.events_mask, ARRAY_SIZE(intel_arch_events_map)) {
                 intel_perfmon_event_map[intel_arch_events_map[bit].id] = 0;
-                printk(KERN_WARNING "CPUID marked event: \'%s\' unavailable\n",
-                                intel_arch_events_map[bit].name);
+                pr_warn("CPUID marked event: \'%s\' unavailable\n",
+                        intel_arch_events_map[bit].name);
         }
 }
 
@@ -1756,7 +1803,7 @@ static __init void intel_nehalem_quirk(void)
                 intel_perfmon_event_map[PERF_COUNT_HW_BRANCH_MISSES] = 0x7f89;
                 ebx.split.no_branch_misses_retired = 0;
                 x86_pmu.events_maskl = ebx.full;
-                printk(KERN_INFO "CPU erratum AAJ80 worked around\n");
+                pr_info("CPU erratum AAJ80 worked around\n");
         }
 }
 
@@ -1765,6 +1812,7 @@ __init int intel_pmu_init(void)
         union cpuid10_edx edx;
         union cpuid10_eax eax;
         union cpuid10_ebx ebx;
+        struct event_constraint *c;
         unsigned int unused;
         int version;
 
@@ -1800,6 +1848,8 @@ __init int intel_pmu_init(void)
         x86_pmu.events_maskl            = ebx.full;
         x86_pmu.events_mask_len         = eax.split.mask_length;
 
+        x86_pmu.max_pebs_events         = min_t(unsigned, MAX_PEBS_EVENTS, x86_pmu.num_counters);
+
         /*
          * Quirk: v2 perfmon does not report fixed-purpose events, so
          * assume at least 3 events:
@@ -1951,5 +2001,37 @@ __init int intel_pmu_init(void)
                 }
         }
 
+        if (x86_pmu.num_counters > INTEL_PMC_MAX_GENERIC) {
+                WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!",
+                     x86_pmu.num_counters, INTEL_PMC_MAX_GENERIC);
+                x86_pmu.num_counters = INTEL_PMC_MAX_GENERIC;
+        }
+        x86_pmu.intel_ctrl = (1 << x86_pmu.num_counters) - 1;
+
+        if (x86_pmu.num_counters_fixed > INTEL_PMC_MAX_FIXED) {
+                WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!",
+                     x86_pmu.num_counters_fixed, INTEL_PMC_MAX_FIXED);
+                x86_pmu.num_counters_fixed = INTEL_PMC_MAX_FIXED;
+        }
+
+        x86_pmu.intel_ctrl |=
+                ((1LL << x86_pmu.num_counters_fixed)-1) << INTEL_PMC_IDX_FIXED;
+
+        if (x86_pmu.event_constraints) {
+                /*
+                 * event on fixed counter2 (REF_CYCLES) only works on this
+                 * counter, so do not extend mask to generic counters
+                 */
+                for_each_event_constraint(c, x86_pmu.event_constraints) {
+                        if (c->cmask != X86_RAW_EVENT_MASK
+                            || c->idxmsk64 == INTEL_PMC_MSK_FIXED_REF_CYCLES) {
+                                continue;
+                        }
+
+                        c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
+                        c->weight += x86_pmu.num_counters;
+                }
+        }
+
         return 0;
 }
diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 35e2192df9f4..629ae0b7ad90 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -248,7 +248,7 @@ void reserve_ds_buffers(void)
  */
 
 struct event_constraint bts_constraint =
-        EVENT_CONSTRAINT(0, 1ULL << X86_PMC_IDX_FIXED_BTS, 0);
+        EVENT_CONSTRAINT(0, 1ULL << INTEL_PMC_IDX_FIXED_BTS, 0);
 
 void intel_pmu_enable_bts(u64 config)
 {
@@ -295,7 +295,7 @@ int intel_pmu_drain_bts_buffer(void)
                 u64     to;
                 u64     flags;
         };
-        struct perf_event *event = cpuc->events[X86_PMC_IDX_FIXED_BTS];
+        struct perf_event *event = cpuc->events[INTEL_PMC_IDX_FIXED_BTS];
         struct bts_record *at, *top;
         struct perf_output_handle handle;
         struct perf_event_header header;
@@ -620,7 +620,7 @@ static void intel_pmu_drain_pebs_core(struct pt_regs *iregs)
          * Should not happen, we program the threshold at 1 and do not
          * set a reset value.
          */
-        WARN_ON_ONCE(n > 1);
+        WARN_ONCE(n > 1, "bad leftover pebs %d\n", n);
         at += n - 1;
 
         __intel_pmu_pebs_event(event, iregs, at);
@@ -651,10 +651,10 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
          * Should not happen, we program the threshold at 1 and do not
          * set a reset value.
          */
-        WARN_ON_ONCE(n > MAX_PEBS_EVENTS);
+        WARN_ONCE(n > x86_pmu.max_pebs_events, "Unexpected number of pebs records %d\n", n);
 
         for ( ; at < top; at++) {
-                for_each_set_bit(bit, (unsigned long *)&at->status, MAX_PEBS_EVENTS) {
+                for_each_set_bit(bit, (unsigned long *)&at->status, x86_pmu.max_pebs_events) {
                         event = cpuc->events[bit];
                         if (!test_bit(bit, cpuc->active_mask))
                                 continue;
@@ -670,7 +670,7 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
                         break;
                 }
 
-                if (!event || bit >= MAX_PEBS_EVENTS)
+                if (!event || bit >= x86_pmu.max_pebs_events)
                         continue;
 
                 __intel_pmu_pebs_event(event, iregs, at);
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
new file mode 100644
index 000000000000..19faffc60886
--- /dev/null
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -0,0 +1,1850 @@
+#include "perf_event_intel_uncore.h"
+
+static struct intel_uncore_type *empty_uncore[] = { NULL, };
+static struct intel_uncore_type **msr_uncores = empty_uncore;
+static struct intel_uncore_type **pci_uncores = empty_uncore;
+/* pci bus to socket mapping */
+static int pcibus_to_physid[256] = { [0 ... 255] = -1, };
+
+static DEFINE_RAW_SPINLOCK(uncore_box_lock);
+
+/* mask of cpus that collect uncore events */
+static cpumask_t uncore_cpu_mask;
+
+/* constraint for the fixed counter */
+static struct event_constraint constraint_fixed =
+        EVENT_CONSTRAINT(~0ULL, 1 << UNCORE_PMC_IDX_FIXED, ~0ULL);
+static struct event_constraint constraint_empty =
+        EVENT_CONSTRAINT(0, 0, 0);
+
+DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
+DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
+DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
+DEFINE_UNCORE_FORMAT_ATTR(tid_en, tid_en, "config:19");
+DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
+DEFINE_UNCORE_FORMAT_ATTR(cmask5, cmask, "config:24-28");
+DEFINE_UNCORE_FORMAT_ATTR(cmask8, cmask, "config:24-31");
+DEFINE_UNCORE_FORMAT_ATTR(thresh8, thresh, "config:24-31");
+DEFINE_UNCORE_FORMAT_ATTR(thresh5, thresh, "config:24-28");
+DEFINE_UNCORE_FORMAT_ATTR(occ_sel, occ_sel, "config:14-15");
+DEFINE_UNCORE_FORMAT_ATTR(occ_invert, occ_invert, "config:30");
+DEFINE_UNCORE_FORMAT_ATTR(occ_edge, occ_edge, "config:14-51");
+DEFINE_UNCORE_FORMAT_ATTR(filter_tid, filter_tid, "config1:0-4");
+DEFINE_UNCORE_FORMAT_ATTR(filter_nid, filter_nid, "config1:10-17");
+DEFINE_UNCORE_FORMAT_ATTR(filter_state, filter_state, "config1:18-22");
+DEFINE_UNCORE_FORMAT_ATTR(filter_opc, filter_opc, "config1:23-31");
+DEFINE_UNCORE_FORMAT_ATTR(filter_brand0, filter_brand0, "config1:0-7");
+DEFINE_UNCORE_FORMAT_ATTR(filter_brand1, filter_brand1, "config1:8-15");
+DEFINE_UNCORE_FORMAT_ATTR(filter_brand2, filter_brand2, "config1:16-23");
+DEFINE_UNCORE_FORMAT_ATTR(filter_brand3, filter_brand3, "config1:24-31");
+
+/* Sandy Bridge-EP uncore support */
+static struct intel_uncore_type snbep_uncore_cbox;
+static struct intel_uncore_type snbep_uncore_pcu;
+
+static void snbep_uncore_pci_disable_box(struct intel_uncore_box *box)
+{
+        struct pci_dev *pdev = box->pci_dev;
+        int box_ctl = uncore_pci_box_ctl(box);
+        u32 config;
+
+        pci_read_config_dword(pdev, box_ctl, &config);
+        config |= SNBEP_PMON_BOX_CTL_FRZ;
+        pci_write_config_dword(pdev, box_ctl, config);
+}
+
+static void snbep_uncore_pci_enable_box(struct intel_uncore_box *box)
+{
+        struct pci_dev *pdev = box->pci_dev;
+        int box_ctl = uncore_pci_box_ctl(box);
+        u32 config;
+
+        pci_read_config_dword(pdev, box_ctl, &config);
+        config &= ~SNBEP_PMON_BOX_CTL_FRZ;
+        pci_write_config_dword(pdev, box_ctl, config);
+}
+
+static void snbep_uncore_pci_enable_event(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct pci_dev *pdev = box->pci_dev;
+        struct hw_perf_event *hwc = &event->hw;
+
+        pci_write_config_dword(pdev, hwc->config_base, hwc->config |
+                                SNBEP_PMON_CTL_EN);
+}
+
+static void snbep_uncore_pci_disable_event(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct pci_dev *pdev = box->pci_dev;
+        struct hw_perf_event *hwc = &event->hw;
+
+        pci_write_config_dword(pdev, hwc->config_base, hwc->config);
+}
+
+static u64 snbep_uncore_pci_read_counter(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct pci_dev *pdev = box->pci_dev;
+        struct hw_perf_event *hwc = &event->hw;
+        u64 count;
+
+        pci_read_config_dword(pdev, hwc->event_base, (u32 *)&count);
+        pci_read_config_dword(pdev, hwc->event_base + 4, (u32 *)&count + 1);
+        return count;
+}
+
+static void snbep_uncore_pci_init_box(struct intel_uncore_box *box)
+{
+        struct pci_dev *pdev = box->pci_dev;
+        pci_write_config_dword(pdev, SNBEP_PCI_PMON_BOX_CTL,
+                                SNBEP_PMON_BOX_CTL_INT);
+}
+
+static void snbep_uncore_msr_disable_box(struct intel_uncore_box *box)
+{
+        u64 config;
+        unsigned msr;
+
+        msr = uncore_msr_box_ctl(box);
+        if (msr) {
+                rdmsrl(msr, config);
+                config |= SNBEP_PMON_BOX_CTL_FRZ;
+                wrmsrl(msr, config);
+                return;
+        }
+}
+
+static void snbep_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+        u64 config;
+        unsigned msr;
+
+        msr = uncore_msr_box_ctl(box);
+        if (msr) {
+                rdmsrl(msr, config);
+                config &= ~SNBEP_PMON_BOX_CTL_FRZ;
+                wrmsrl(msr, config);
+                return;
+        }
+}
+
+static void snbep_uncore_msr_enable_event(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct hw_perf_event *hwc = &event->hw;
+        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+        if (reg1->idx != EXTRA_REG_NONE)
+                wrmsrl(reg1->reg, reg1->config);
+
+        wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static void snbep_uncore_msr_disable_event(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct hw_perf_event *hwc = &event->hw;
+
+        wrmsrl(hwc->config_base, hwc->config);
+}
+
+static u64 snbep_uncore_msr_read_counter(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct hw_perf_event *hwc = &event->hw;
+        u64 count;
+
+        rdmsrl(hwc->event_base, count);
+        return count;
+}
+
+static void snbep_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+        unsigned msr = uncore_msr_box_ctl(box);
+        if (msr)
+                wrmsrl(msr, SNBEP_PMON_BOX_CTL_INT);
+}
+
+static struct event_constraint *
+snbep_uncore_get_constraint(struct intel_uncore_box *box,
+                            struct perf_event *event)
+{
+        struct intel_uncore_extra_reg *er;
+        struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+        unsigned long flags;
+        bool ok = false;
+
+        if (reg1->idx == EXTRA_REG_NONE || (box->phys_id >= 0 && reg1->alloc))
+                return NULL;
+
+        er = &box->shared_regs[reg1->idx];
+        raw_spin_lock_irqsave(&er->lock, flags);
+        if (!atomic_read(&er->ref) || er->config1 == reg1->config) {
+                atomic_inc(&er->ref);
+                er->config1 = reg1->config;
+                ok = true;
+        }
+        raw_spin_unlock_irqrestore(&er->lock, flags);
+
+        if (ok) {
+                if (box->phys_id >= 0)
+                        reg1->alloc = 1;
+                return NULL;
+        }
+        return &constraint_empty;
+}
+
+static void snbep_uncore_put_constraint(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct intel_uncore_extra_reg *er;
+        struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+
+        if (box->phys_id < 0 || !reg1->alloc)
+                return;
+
+        er = &box->shared_regs[reg1->idx];
+        atomic_dec(&er->ref);
+        reg1->alloc = 0;
+}
+
+static int snbep_uncore_hw_config(struct intel_uncore_box *box,
+                                  struct perf_event *event)
+{
+        struct hw_perf_event *hwc = &event->hw;
+        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+        if (box->pmu->type == &snbep_uncore_cbox) {
+                reg1->reg = SNBEP_C0_MSR_PMON_BOX_FILTER +
+                        SNBEP_CBO_MSR_OFFSET * box->pmu->pmu_idx;
+                reg1->config = event->attr.config1 &
+                        SNBEP_CB0_MSR_PMON_BOX_FILTER_MASK;
+        } else if (box->pmu->type == &snbep_uncore_pcu) {
+                reg1->reg = SNBEP_PCU_MSR_PMON_BOX_FILTER;
+                reg1->config = event->attr.config1 &
+                        SNBEP_PCU_MSR_PMON_BOX_FILTER_MASK;
+        } else {
+                return 0;
+        }
+        reg1->idx = 0;
+        return 0;
+}
+
+static struct attribute *snbep_uncore_formats_attr[] = {
+        &format_attr_event.attr,
+        &format_attr_umask.attr,
+        &format_attr_edge.attr,
+        &format_attr_inv.attr,
+        &format_attr_thresh8.attr,
+        NULL,
+};
+
+static struct attribute *snbep_uncore_ubox_formats_attr[] = {
+        &format_attr_event.attr,
+        &format_attr_umask.attr,
+        &format_attr_edge.attr,
+        &format_attr_inv.attr,
+        &format_attr_thresh5.attr,
+        NULL,
+};
+
+static struct attribute *snbep_uncore_cbox_formats_attr[] = {
+        &format_attr_event.attr,
+        &format_attr_umask.attr,
+        &format_attr_edge.attr,
+        &format_attr_tid_en.attr,
+        &format_attr_inv.attr,
+        &format_attr_thresh8.attr,
+        &format_attr_filter_tid.attr,
+        &format_attr_filter_nid.attr,
+        &format_attr_filter_state.attr,
+        &format_attr_filter_opc.attr,
+        NULL,
+};
+
+static struct attribute *snbep_uncore_pcu_formats_attr[] = {
+        &format_attr_event.attr,
+        &format_attr_occ_sel.attr,
+        &format_attr_edge.attr,
+        &format_attr_inv.attr,
+        &format_attr_thresh5.attr,
+        &format_attr_occ_invert.attr,
+        &format_attr_occ_edge.attr,
+        &format_attr_filter_brand0.attr,
+        &format_attr_filter_brand1.attr,
+        &format_attr_filter_brand2.attr,
+        &format_attr_filter_brand3.attr,
+        NULL,
+};
+
+static struct uncore_event_desc snbep_uncore_imc_events[] = {
+        INTEL_UNCORE_EVENT_DESC(clockticks,      "event=0xff,umask=0x00"),
+        INTEL_UNCORE_EVENT_DESC(cas_count_read,  "event=0x04,umask=0x03"),
+        INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x0c"),
+        { /* end: all zeroes */ },
+};
+
+static struct uncore_event_desc snbep_uncore_qpi_events[] = {
+        INTEL_UNCORE_EVENT_DESC(clockticks,       "event=0x14"),
+        INTEL_UNCORE_EVENT_DESC(txl_flits_active, "event=0x00,umask=0x06"),
+        INTEL_UNCORE_EVENT_DESC(drs_data,         "event=0x02,umask=0x08"),
+        INTEL_UNCORE_EVENT_DESC(ncb_data,         "event=0x03,umask=0x04"),
+        { /* end: all zeroes */ },
+};
+
+static struct attribute_group snbep_uncore_format_group = {
+        .name = "format",
+        .attrs = snbep_uncore_formats_attr,
+};
+
+static struct attribute_group snbep_uncore_ubox_format_group = {
+        .name = "format",
+        .attrs = snbep_uncore_ubox_formats_attr,
+};
+
+static struct attribute_group snbep_uncore_cbox_format_group = {
+        .name = "format",
+        .attrs = snbep_uncore_cbox_formats_attr,
+};
+
+static struct attribute_group snbep_uncore_pcu_format_group = {
+        .name = "format",
+        .attrs = snbep_uncore_pcu_formats_attr,
+};
+
+static struct intel_uncore_ops snbep_uncore_msr_ops = {
+        .init_box       = snbep_uncore_msr_init_box,
+        .disable_box    = snbep_uncore_msr_disable_box,
+        .enable_box     = snbep_uncore_msr_enable_box,
+        .disable_event  = snbep_uncore_msr_disable_event,
+        .enable_event   = snbep_uncore_msr_enable_event,
+        .read_counter   = snbep_uncore_msr_read_counter,
+        .get_constraint = snbep_uncore_get_constraint,
+        .put_constraint = snbep_uncore_put_constraint,
+        .hw_config      = snbep_uncore_hw_config,
+};
+
+static struct intel_uncore_ops snbep_uncore_pci_ops = {
+        .init_box       = snbep_uncore_pci_init_box,
+        .disable_box    = snbep_uncore_pci_disable_box,
+        .enable_box     = snbep_uncore_pci_enable_box,
+        .disable_event  = snbep_uncore_pci_disable_event,
+        .enable_event   = snbep_uncore_pci_enable_event,
+        .read_counter   = snbep_uncore_pci_read_counter,
+};
+
+static struct event_constraint snbep_uncore_cbox_constraints[] = {
+        UNCORE_EVENT_CONSTRAINT(0x01, 0x1),
+        UNCORE_EVENT_CONSTRAINT(0x02, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x04, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x05, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x07, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x11, 0x1),
+        UNCORE_EVENT_CONSTRAINT(0x12, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x13, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x1b, 0xc),
+        UNCORE_EVENT_CONSTRAINT(0x1c, 0xc),
+        UNCORE_EVENT_CONSTRAINT(0x1d, 0xc),
+        UNCORE_EVENT_CONSTRAINT(0x1e, 0xc),
+        EVENT_CONSTRAINT_OVERLAP(0x1f, 0xe, 0xff),
+        UNCORE_EVENT_CONSTRAINT(0x21, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x31, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x32, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x35, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x36, 0x1),
+        UNCORE_EVENT_CONSTRAINT(0x37, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x38, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x39, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x3b, 0x1),
+        EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint snbep_uncore_r2pcie_constraints[] = {
+        UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x12, 0x1),
+        UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x24, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x25, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x32, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+        EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint snbep_uncore_r3qpi_constraints[] = {
+        UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x12, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x13, 0x1),
+        UNCORE_EVENT_CONSTRAINT(0x20, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x21, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x22, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x24, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x25, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x30, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x31, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x32, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x36, 0x3),
+        UNCORE_EVENT_CONSTRAINT(0x37, 0x3),
+        EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type snbep_uncore_ubox = {
+        .name           = "ubox",
+        .num_counters   = 2,
+        .num_boxes      = 1,
+        .perf_ctr_bits  = 44,
+        .fixed_ctr_bits = 48,
+        .perf_ctr       = SNBEP_U_MSR_PMON_CTR0,
+        .event_ctl      = SNBEP_U_MSR_PMON_CTL0,
+        .event_mask     = SNBEP_U_MSR_PMON_RAW_EVENT_MASK,
+        .fixed_ctr      = SNBEP_U_MSR_PMON_UCLK_FIXED_CTR,
+        .fixed_ctl      = SNBEP_U_MSR_PMON_UCLK_FIXED_CTL,
+        .ops            = &snbep_uncore_msr_ops,
+        .format_group   = &snbep_uncore_ubox_format_group,
+};
+
+static struct intel_uncore_type snbep_uncore_cbox = {
+        .name                   = "cbox",
+        .num_counters           = 4,
+        .num_boxes              = 8,
+        .perf_ctr_bits          = 44,
+        .event_ctl              = SNBEP_C0_MSR_PMON_CTL0,
+        .perf_ctr               = SNBEP_C0_MSR_PMON_CTR0,
+        .event_mask             = SNBEP_CBO_MSR_PMON_RAW_EVENT_MASK,
+        .box_ctl                = SNBEP_C0_MSR_PMON_BOX_CTL,
+        .msr_offset             = SNBEP_CBO_MSR_OFFSET,
+        .num_shared_regs        = 1,
+        .constraints            = snbep_uncore_cbox_constraints,
+        .ops                    = &snbep_uncore_msr_ops,
+        .format_group           = &snbep_uncore_cbox_format_group,
+};
+
+static struct intel_uncore_type snbep_uncore_pcu = {
+        .name                   = "pcu",
+        .num_counters           = 4,
+        .num_boxes              = 1,
+        .perf_ctr_bits          = 48,
+        .perf_ctr               = SNBEP_PCU_MSR_PMON_CTR0,
+        .event_ctl              = SNBEP_PCU_MSR_PMON_CTL0,
+        .event_mask             = SNBEP_PCU_MSR_PMON_RAW_EVENT_MASK,
+        .box_ctl                = SNBEP_PCU_MSR_PMON_BOX_CTL,
+        .num_shared_regs        = 1,
+        .ops                    = &snbep_uncore_msr_ops,
+        .format_group           = &snbep_uncore_pcu_format_group,
+};
+
+static struct intel_uncore_type *snbep_msr_uncores[] = {
+        &snbep_uncore_ubox,
+        &snbep_uncore_cbox,
+        &snbep_uncore_pcu,
+        NULL,
+};
+
+#define SNBEP_UNCORE_PCI_COMMON_INIT()                          \
+        .perf_ctr       = SNBEP_PCI_PMON_CTR0,                  \
+        .event_ctl      = SNBEP_PCI_PMON_CTL0,                  \
+        .event_mask     = SNBEP_PMON_RAW_EVENT_MASK,            \
+        .box_ctl        = SNBEP_PCI_PMON_BOX_CTL,               \
+        .ops            = &snbep_uncore_pci_ops,                \
+        .format_group   = &snbep_uncore_format_group
+
+static struct intel_uncore_type snbep_uncore_ha = {
+        .name           = "ha",
+        .num_counters   = 4,
+        .num_boxes      = 1,
+        .perf_ctr_bits  = 48,
+        SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type snbep_uncore_imc = {
+        .name           = "imc",
+        .num_counters   = 4,
+        .num_boxes      = 4,
+        .perf_ctr_bits  = 48,
+        .fixed_ctr_bits = 48,
+        .fixed_ctr      = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR,
+        .fixed_ctl      = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL,
+        .event_descs    = snbep_uncore_imc_events,
+        SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type snbep_uncore_qpi = {
+        .name           = "qpi",
+        .num_counters   = 4,
+        .num_boxes      = 2,
+        .perf_ctr_bits  = 48,
+        .event_descs    = snbep_uncore_qpi_events,
+        SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+
+static struct intel_uncore_type snbep_uncore_r2pcie = {
+        .name           = "r2pcie",
+        .num_counters   = 4,
+        .num_boxes      = 1,
+        .perf_ctr_bits  = 44,
+        .constraints    = snbep_uncore_r2pcie_constraints,
+        SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type snbep_uncore_r3qpi = {
+        .name           = "r3qpi",
+        .num_counters   = 3,
+        .num_boxes      = 2,
+        .perf_ctr_bits  = 44,
+        .constraints    = snbep_uncore_r3qpi_constraints,
+        SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type *snbep_pci_uncores[] = {
+        &snbep_uncore_ha,
+        &snbep_uncore_imc,
+        &snbep_uncore_qpi,
+        &snbep_uncore_r2pcie,
+        &snbep_uncore_r3qpi,
+        NULL,
+};
+
+static DEFINE_PCI_DEVICE_TABLE(snbep_uncore_pci_ids) = {
+        { /* Home Agent */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_HA),
+                .driver_data = (unsigned long)&snbep_uncore_ha,
+        },
+        { /* MC Channel 0 */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC0),
+                .driver_data = (unsigned long)&snbep_uncore_imc,
+        },
+        { /* MC Channel 1 */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC1),
+                .driver_data = (unsigned long)&snbep_uncore_imc,
+        },
+        { /* MC Channel 2 */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC2),
+                .driver_data = (unsigned long)&snbep_uncore_imc,
+        },
+        { /* MC Channel 3 */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC3),
+                .driver_data = (unsigned long)&snbep_uncore_imc,
+        },
+        { /* QPI Port 0 */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI0),
+                .driver_data = (unsigned long)&snbep_uncore_qpi,
+        },
+        { /* QPI Port 1 */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI1),
+                .driver_data = (unsigned long)&snbep_uncore_qpi,
+        },
+        { /* P2PCIe */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R2PCIE),
+                .driver_data = (unsigned long)&snbep_uncore_r2pcie,
+        },
+        { /* R3QPI Link 0 */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI0),
+                .driver_data = (unsigned long)&snbep_uncore_r3qpi,
+        },
+        { /* R3QPI Link 1 */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI1),
+                .driver_data = (unsigned long)&snbep_uncore_r3qpi,
+        },
+        { /* end: all zeroes */ }
+};
+
+static struct pci_driver snbep_uncore_pci_driver = {
+        .name           = "snbep_uncore",
+        .id_table       = snbep_uncore_pci_ids,
+};
+
+/*
+ * build pci bus to socket mapping
+ */
+static void snbep_pci2phy_map_init(void)
+{
+        struct pci_dev *ubox_dev = NULL;
+        int i, bus, nodeid;
+        u32 config;
+
+        while (1) {
+                /* find the UBOX device */
+                ubox_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
+                                        PCI_DEVICE_ID_INTEL_JAKETOWN_UBOX,
+                                        ubox_dev);
+                if (!ubox_dev)
+                        break;
+                bus = ubox_dev->bus->number;
+                /* get the Node ID of the local register */
+                pci_read_config_dword(ubox_dev, 0x40, &config);
+                nodeid = config;
+                /* get the Node ID mapping */
+                pci_read_config_dword(ubox_dev, 0x54, &config);
+                /*
+                 * every three bits in the Node ID mapping register maps
+                 * to a particular node.
+                 */
+                for (i = 0; i < 8; i++) {
+                        if (nodeid == ((config >> (3 * i)) & 0x7)) {
+                                pcibus_to_physid[bus] = i;
+                                break;
+                        }
+                }
+        };
+        return;
+}
+/* end of Sandy Bridge-EP uncore support */
+
+
+/* Sandy Bridge uncore support */
+static void snb_uncore_msr_enable_event(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct hw_perf_event *hwc = &event->hw;
+
+        if (hwc->idx < UNCORE_PMC_IDX_FIXED)
+                wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
+        else
+                wrmsrl(hwc->config_base, SNB_UNC_CTL_EN);
+}
+
+static void snb_uncore_msr_disable_event(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        wrmsrl(event->hw.config_base, 0);
+}
+
+static u64 snb_uncore_msr_read_counter(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        u64 count;
+        rdmsrl(event->hw.event_base, count);
+        return count;
+}
+
+static void snb_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+        if (box->pmu->pmu_idx == 0) {
+                wrmsrl(SNB_UNC_PERF_GLOBAL_CTL,
+                        SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL);
+        }
+}
+
+static struct attribute *snb_uncore_formats_attr[] = {
+        &format_attr_event.attr,
+        &format_attr_umask.attr,
+        &format_attr_edge.attr,
+        &format_attr_inv.attr,
+        &format_attr_cmask5.attr,
+        NULL,
+};
+
+static struct attribute_group snb_uncore_format_group = {
+        .name = "format",
+        .attrs = snb_uncore_formats_attr,
+};
+
+static struct intel_uncore_ops snb_uncore_msr_ops = {
+        .init_box       = snb_uncore_msr_init_box,
+        .disable_event  = snb_uncore_msr_disable_event,
+        .enable_event   = snb_uncore_msr_enable_event,
+        .read_counter   = snb_uncore_msr_read_counter,
+};
+
+static struct event_constraint snb_uncore_cbox_constraints[] = {
+        UNCORE_EVENT_CONSTRAINT(0x80, 0x1),
+        UNCORE_EVENT_CONSTRAINT(0x83, 0x1),
+        EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type snb_uncore_cbox = {
+        .name           = "cbox",
+        .num_counters   = 2,
+        .num_boxes      = 4,
+        .perf_ctr_bits  = 44,
+        .fixed_ctr_bits = 48,
+        .perf_ctr       = SNB_UNC_CBO_0_PER_CTR0,
+        .event_ctl      = SNB_UNC_CBO_0_PERFEVTSEL0,
+        .fixed_ctr      = SNB_UNC_FIXED_CTR,
+        .fixed_ctl      = SNB_UNC_FIXED_CTR_CTRL,
+        .single_fixed   = 1,
+        .event_mask     = SNB_UNC_RAW_EVENT_MASK,
+        .msr_offset     = SNB_UNC_CBO_MSR_OFFSET,
+        .constraints    = snb_uncore_cbox_constraints,
+        .ops            = &snb_uncore_msr_ops,
+        .format_group   = &snb_uncore_format_group,
+};
+
+static struct intel_uncore_type *snb_msr_uncores[] = {
+        &snb_uncore_cbox,
+        NULL,
+};
+/* end of Sandy Bridge uncore support */
+
+/* Nehalem uncore support */
+static void nhm_uncore_msr_disable_box(struct intel_uncore_box *box)
+{
+        wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, 0);
+}
+
+static void nhm_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+        wrmsrl(NHM_UNC_PERF_GLOBAL_CTL,
+                NHM_UNC_GLOBAL_CTL_EN_PC_ALL | NHM_UNC_GLOBAL_CTL_EN_FC);
+}
+
+static void nhm_uncore_msr_enable_event(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        struct hw_perf_event *hwc = &event->hw;
+
+        if (hwc->idx < UNCORE_PMC_IDX_FIXED)
+                wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
+        else
+                wrmsrl(hwc->config_base, NHM_UNC_FIXED_CTR_CTL_EN);
+}
+
+static struct attribute *nhm_uncore_formats_attr[] = {
+        &format_attr_event.attr,
+        &format_attr_umask.attr,
+        &format_attr_edge.attr,
+        &format_attr_inv.attr,
+        &format_attr_cmask8.attr,
+        NULL,
+};
+
+static struct attribute_group nhm_uncore_format_group = {
+        .name = "format",
+        .attrs = nhm_uncore_formats_attr,
+};
+
+static struct uncore_event_desc nhm_uncore_events[] = {
+        INTEL_UNCORE_EVENT_DESC(clockticks,                "event=0xff,umask=0x00"),
+        INTEL_UNCORE_EVENT_DESC(qmc_writes_full_any,       "event=0x2f,umask=0x0f"),
+        INTEL_UNCORE_EVENT_DESC(qmc_normal_reads_any,      "event=0x2c,umask=0x0f"),
+        INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_reads,     "event=0x20,umask=0x01"),
+        INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_writes,    "event=0x20,umask=0x02"),
+        INTEL_UNCORE_EVENT_DESC(qhl_request_remote_reads,  "event=0x20,umask=0x04"),
+        INTEL_UNCORE_EVENT_DESC(qhl_request_remote_writes, "event=0x20,umask=0x08"),
+        INTEL_UNCORE_EVENT_DESC(qhl_request_local_reads,   "event=0x20,umask=0x10"),
+        INTEL_UNCORE_EVENT_DESC(qhl_request_local_writes,  "event=0x20,umask=0x20"),
+        { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_ops nhm_uncore_msr_ops = {
+        .disable_box    = nhm_uncore_msr_disable_box,
+        .enable_box     = nhm_uncore_msr_enable_box,
+        .disable_event  = snb_uncore_msr_disable_event,
+        .enable_event   = nhm_uncore_msr_enable_event,
+        .read_counter   = snb_uncore_msr_read_counter,
+};
+
+static struct intel_uncore_type nhm_uncore = {
+        .name           = "",
+        .num_counters   = 8,
+        .num_boxes      = 1,
+        .perf_ctr_bits  = 48,
+        .fixed_ctr_bits = 48,
+        .event_ctl      = NHM_UNC_PERFEVTSEL0,
+        .perf_ctr       = NHM_UNC_UNCORE_PMC0,
+        .fixed_ctr      = NHM_UNC_FIXED_CTR,
+        .fixed_ctl      = NHM_UNC_FIXED_CTR_CTRL,
+        .event_mask     = NHM_UNC_RAW_EVENT_MASK,
+        .event_descs    = nhm_uncore_events,
+        .ops            = &nhm_uncore_msr_ops,
+        .format_group   = &nhm_uncore_format_group,
+};
+
+static struct intel_uncore_type *nhm_msr_uncores[] = {
+        &nhm_uncore,
+        NULL,
+};
+/* end of Nehalem uncore support */
+
+static void uncore_assign_hw_event(struct intel_uncore_box *box,
+                                struct perf_event *event, int idx)
+{
+        struct hw_perf_event *hwc = &event->hw;
+
+        hwc->idx = idx;
+        hwc->last_tag = ++box->tags[idx];
+
+        if (hwc->idx == UNCORE_PMC_IDX_FIXED) {
+                hwc->event_base = uncore_fixed_ctr(box);
+                hwc->config_base = uncore_fixed_ctl(box);
+                return;
+        }
+
+        hwc->config_base = uncore_event_ctl(box, hwc->idx);
+        hwc->event_base  = uncore_perf_ctr(box, hwc->idx);
+}
+
+static void uncore_perf_event_update(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        u64 prev_count, new_count, delta;
+        int shift;
+
+        if (event->hw.idx >= UNCORE_PMC_IDX_FIXED)
+                shift = 64 - uncore_fixed_ctr_bits(box);
+        else
+                shift = 64 - uncore_perf_ctr_bits(box);
+
+        /* the hrtimer might modify the previous event value */
+again:
+        prev_count = local64_read(&event->hw.prev_count);
+        new_count = uncore_read_counter(box, event);
+        if (local64_xchg(&event->hw.prev_count, new_count) != prev_count)
+                goto again;
+
+        delta = (new_count << shift) - (prev_count << shift);
+        delta >>= shift;
+
+        local64_add(delta, &event->count);
+}
+
+/*
+ * The overflow interrupt is unavailable for SandyBridge-EP, is broken
+ * for SandyBridge. So we use hrtimer to periodically poll the counter
+ * to avoid overflow.
+ */
+static enum hrtimer_restart uncore_pmu_hrtimer(struct hrtimer *hrtimer)
+{
+        struct intel_uncore_box *box;
+        unsigned long flags;
+        int bit;
+
+        box = container_of(hrtimer, struct intel_uncore_box, hrtimer);
+        if (!box->n_active || box->cpu != smp_processor_id())
+                return HRTIMER_NORESTART;
+        /*
+         * disable local interrupt to prevent uncore_pmu_event_start/stop
+         * to interrupt the update process
+         */
+        local_irq_save(flags);
+
+        for_each_set_bit(bit, box->active_mask, UNCORE_PMC_IDX_MAX)
+                uncore_perf_event_update(box, box->events[bit]);
+
+        local_irq_restore(flags);
+
+        hrtimer_forward_now(hrtimer, ns_to_ktime(UNCORE_PMU_HRTIMER_INTERVAL));
+        return HRTIMER_RESTART;
+}
+
+static void uncore_pmu_start_hrtimer(struct intel_uncore_box *box)
+{
+        __hrtimer_start_range_ns(&box->hrtimer,
+                        ns_to_ktime(UNCORE_PMU_HRTIMER_INTERVAL), 0,
+                        HRTIMER_MODE_REL_PINNED, 0);
+}
+
+static void uncore_pmu_cancel_hrtimer(struct intel_uncore_box *box)
+{
+        hrtimer_cancel(&box->hrtimer);
+}
+
+static void uncore_pmu_init_hrtimer(struct intel_uncore_box *box)
+{
+        hrtimer_init(&box->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+        box->hrtimer.function = uncore_pmu_hrtimer;
+}
+
+struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type,
+                                          int cpu)
+{
+        struct intel_uncore_box *box;
+        int i, size;
+
+        size = sizeof(*box) + type->num_shared_regs *
+                sizeof(struct intel_uncore_extra_reg);
+
+        box = kmalloc_node(size, GFP_KERNEL | __GFP_ZERO, cpu_to_node(cpu));
+        if (!box)
+                return NULL;
+
+        for (i = 0; i < type->num_shared_regs; i++)
+                raw_spin_lock_init(&box->shared_regs[i].lock);
+
+        uncore_pmu_init_hrtimer(box);
+        atomic_set(&box->refcnt, 1);
+        box->cpu = -1;
+        box->phys_id = -1;
+
+        return box;
+}
+
+static struct intel_uncore_box *
+uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
+{
+        static struct intel_uncore_box *box;
+
+        box = *per_cpu_ptr(pmu->box, cpu);
+        if (box)
+                return box;
+
+        raw_spin_lock(&uncore_box_lock);
+        list_for_each_entry(box, &pmu->box_list, list) {
+                if (box->phys_id == topology_physical_package_id(cpu)) {
+                        atomic_inc(&box->refcnt);
+                        *per_cpu_ptr(pmu->box, cpu) = box;
+                        break;
+                }
+        }
+        raw_spin_unlock(&uncore_box_lock);
+
+        return *per_cpu_ptr(pmu->box, cpu);
+}
+
+static struct intel_uncore_pmu *uncore_event_to_pmu(struct perf_event *event)
+{
+        return container_of(event->pmu, struct intel_uncore_pmu, pmu);
+}
+
+static struct intel_uncore_box *uncore_event_to_box(struct perf_event *event)
+{
+        /*
+         * perf core schedules event on the basis of cpu, uncore events are
+         * collected by one of the cpus inside a physical package.
+         */
+        return uncore_pmu_to_box(uncore_event_to_pmu(event),
+                                 smp_processor_id());
+}
+
+static int uncore_collect_events(struct intel_uncore_box *box,
+                                struct perf_event *leader, bool dogrp)
+{
+        struct perf_event *event;
+        int n, max_count;
+
+        max_count = box->pmu->type->num_counters;
+        if (box->pmu->type->fixed_ctl)
+                max_count++;
+
+        if (box->n_events >= max_count)
+                return -EINVAL;
+
+        n = box->n_events;
+        box->event_list[n] = leader;
+        n++;
+        if (!dogrp)
+                return n;
+
+        list_for_each_entry(event, &leader->sibling_list, group_entry) {
+                if (event->state <= PERF_EVENT_STATE_OFF)
+                        continue;
+
+                if (n >= max_count)
+                        return -EINVAL;
+
+                box->event_list[n] = event;
+                n++;
+        }
+        return n;
+}
+
+static struct event_constraint *
+uncore_get_event_constraint(struct intel_uncore_box *box,
+                            struct perf_event *event)
+{
+        struct intel_uncore_type *type = box->pmu->type;
+        struct event_constraint *c;
+
+        if (type->ops->get_constraint) {
+                c = type->ops->get_constraint(box, event);
+                if (c)
+                        return c;
+        }
+
+        if (event->hw.config == ~0ULL)
+                return &constraint_fixed;
+
+        if (type->constraints) {
+                for_each_event_constraint(c, type->constraints) {
+                        if ((event->hw.config & c->cmask) == c->code)
+                                return c;
+                }
+        }
+
+        return &type->unconstrainted;
+}
+
+static void uncore_put_event_constraint(struct intel_uncore_box *box,
+                                        struct perf_event *event)
+{
+        if (box->pmu->type->ops->put_constraint)
+                box->pmu->type->ops->put_constraint(box, event);
+}
+
+static int uncore_assign_events(struct intel_uncore_box *box,
+                                int assign[], int n)
+{
+        unsigned long used_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)];
+        struct event_constraint *c, *constraints[UNCORE_PMC_IDX_MAX];
+        int i, wmin, wmax, ret = 0;
+        struct hw_perf_event *hwc;
+
+        bitmap_zero(used_mask, UNCORE_PMC_IDX_MAX);
+
+        for (i = 0, wmin = UNCORE_PMC_IDX_MAX, wmax = 0; i < n; i++) {
+                c = uncore_get_event_constraint(box, box->event_list[i]);
+                constraints[i] = c;
+                wmin = min(wmin, c->weight);
+                wmax = max(wmax, c->weight);
+        }
+
+        /* fastpath, try to reuse previous register */
+        for (i = 0; i < n; i++) {
+                hwc = &box->event_list[i]->hw;
+                c = constraints[i];
+
+                /* never assigned */
+                if (hwc->idx == -1)
+                        break;
+
+                /* constraint still honored */
+                if (!test_bit(hwc->idx, c->idxmsk))
+                        break;
+
+                /* not already used */
+                if (test_bit(hwc->idx, used_mask))
+                        break;
+
+                __set_bit(hwc->idx, used_mask);
+                if (assign)
+                        assign[i] = hwc->idx;
+        }
+        /* slow path */
+        if (i != n)
+                ret = perf_assign_events(constraints, n, wmin, wmax, assign);
+
+        if (!assign || ret) {
+                for (i = 0; i < n; i++)
+                        uncore_put_event_constraint(box, box->event_list[i]);
+        }
+        return ret ? -EINVAL : 0;
+}
+
+static void uncore_pmu_event_start(struct perf_event *event, int flags)
+{
+        struct intel_uncore_box *box = uncore_event_to_box(event);
+        int idx = event->hw.idx;
+
+        if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
+                return;
+
+        if (WARN_ON_ONCE(idx == -1 || idx >= UNCORE_PMC_IDX_MAX))
+                return;
+
+        event->hw.state = 0;
+        box->events[idx] = event;
+        box->n_active++;
+        __set_bit(idx, box->active_mask);
+
+        local64_set(&event->hw.prev_count, uncore_read_counter(box, event));
+        uncore_enable_event(box, event);
+
+        if (box->n_active == 1) {
+                uncore_enable_box(box);
+                uncore_pmu_start_hrtimer(box);
+        }
+}
+
+static void uncore_pmu_event_stop(struct perf_event *event, int flags)
+{
+        struct intel_uncore_box *box = uncore_event_to_box(event);
+        struct hw_perf_event *hwc = &event->hw;
+
+        if (__test_and_clear_bit(hwc->idx, box->active_mask)) {
+                uncore_disable_event(box, event);
+                box->n_active--;
+                box->events[hwc->idx] = NULL;
+                WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
+                hwc->state |= PERF_HES_STOPPED;
+
+                if (box->n_active == 0) {
+                        uncore_disable_box(box);
+                        uncore_pmu_cancel_hrtimer(box);
+                }
+        }
+
+        if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
+                /*
+                 * Drain the remaining delta count out of a event
+                 * that we are disabling:
+                 */
+                uncore_perf_event_update(box, event);
+                hwc->state |= PERF_HES_UPTODATE;
+        }
+}
+
+static int uncore_pmu_event_add(struct perf_event *event, int flags)
+{
+        struct intel_uncore_box *box = uncore_event_to_box(event);
+        struct hw_perf_event *hwc = &event->hw;
+        int assign[UNCORE_PMC_IDX_MAX];
+        int i, n, ret;
+
+        if (!box)
+                return -ENODEV;
+
+        ret = n = uncore_collect_events(box, event, false);
+        if (ret < 0)
+                return ret;
+
+        hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+        if (!(flags & PERF_EF_START))
+                hwc->state |= PERF_HES_ARCH;
+
+        ret = uncore_assign_events(box, assign, n);
+        if (ret)
+                return ret;
+
+        /* save events moving to new counters */
+        for (i = 0; i < box->n_events; i++) {
+                event = box->event_list[i];
+                hwc = &event->hw;
+
+                if (hwc->idx == assign[i] &&
+                        hwc->last_tag == box->tags[assign[i]])
+                        continue;
+                /*
+                 * Ensure we don't accidentally enable a stopped
+                 * counter simply because we rescheduled.
+                 */
+                if (hwc->state & PERF_HES_STOPPED)
+                        hwc->state |= PERF_HES_ARCH;
+
+                uncore_pmu_event_stop(event, PERF_EF_UPDATE);
+        }
+
+        /* reprogram moved events into new counters */
+        for (i = 0; i < n; i++) {
+                event = box->event_list[i];
+                hwc = &event->hw;
+
+                if (hwc->idx != assign[i] ||
+                        hwc->last_tag != box->tags[assign[i]])
+                        uncore_assign_hw_event(box, event, assign[i]);
+                else if (i < box->n_events)
+                        continue;
+
+                if (hwc->state & PERF_HES_ARCH)
+                        continue;
+
+                uncore_pmu_event_start(event, 0);
+        }
+        box->n_events = n;
+
+        return 0;
+}
+
+static void uncore_pmu_event_del(struct perf_event *event, int flags)
+{
+        struct intel_uncore_box *box = uncore_event_to_box(event);
+        int i;
+
+        uncore_pmu_event_stop(event, PERF_EF_UPDATE);
+
+        for (i = 0; i < box->n_events; i++) {
+                if (event == box->event_list[i]) {
+                        uncore_put_event_constraint(box, event);
+
+                        while (++i < box->n_events)
+                                box->event_list[i - 1] = box->event_list[i];
+
+                        --box->n_events;
+                        break;
+                }
+        }
+
+        event->hw.idx = -1;
+        event->hw.last_tag = ~0ULL;
+}
+
+static void uncore_pmu_event_read(struct perf_event *event)
+{
+        struct intel_uncore_box *box = uncore_event_to_box(event);
+        uncore_perf_event_update(box, event);
+}
+
+/*
+ * validation ensures the group can be loaded onto the
+ * PMU if it was the only group available.
+ */
+static int uncore_validate_group(struct intel_uncore_pmu *pmu,
+                                struct perf_event *event)
+{
+        struct perf_event *leader = event->group_leader;
+        struct intel_uncore_box *fake_box;
+        int ret = -EINVAL, n;
+
+        fake_box = uncore_alloc_box(pmu->type, smp_processor_id());
+        if (!fake_box)
+                return -ENOMEM;
+
+        fake_box->pmu = pmu;
+        /*
+         * the event is not yet connected with its
+         * siblings therefore we must first collect
+         * existing siblings, then add the new event
+         * before we can simulate the scheduling
+         */
+        n = uncore_collect_events(fake_box, leader, true);
+        if (n < 0)
+                goto out;
+
+        fake_box->n_events = n;
+        n = uncore_collect_events(fake_box, event, false);
+        if (n < 0)
+                goto out;
+
+        fake_box->n_events = n;
+
+        ret = uncore_assign_events(fake_box, NULL, n);
+out:
+        kfree(fake_box);
+        return ret;
+}
+
+int uncore_pmu_event_init(struct perf_event *event)
+{
+        struct intel_uncore_pmu *pmu;
+        struct intel_uncore_box *box;
+        struct hw_perf_event *hwc = &event->hw;
+        int ret;
+
+        if (event->attr.type != event->pmu->type)
+                return -ENOENT;
+
+        pmu = uncore_event_to_pmu(event);
+        /* no device found for this pmu */
+        if (pmu->func_id < 0)
+                return -ENOENT;
+
+        /*
+         * Uncore PMU does measure at all privilege level all the time.
+         * So it doesn't make sense to specify any exclude bits.
+         */
+        if (event->attr.exclude_user || event->attr.exclude_kernel ||
+                        event->attr.exclude_hv || event->attr.exclude_idle)
+                return -EINVAL;
+
+        /* Sampling not supported yet */
+        if (hwc->sample_period)
+                return -EINVAL;
+
+        /*
+         * Place all uncore events for a particular physical package
+         * onto a single cpu
+         */
+        if (event->cpu < 0)
+                return -EINVAL;
+        box = uncore_pmu_to_box(pmu, event->cpu);
+        if (!box || box->cpu < 0)
+                return -EINVAL;
+        event->cpu = box->cpu;
+
+        event->hw.idx = -1;
+        event->hw.last_tag = ~0ULL;
+        event->hw.extra_reg.idx = EXTRA_REG_NONE;
+
+        if (event->attr.config == UNCORE_FIXED_EVENT) {
+                /* no fixed counter */
+                if (!pmu->type->fixed_ctl)
+                        return -EINVAL;
+                /*
+                 * if there is only one fixed counter, only the first pmu
+                 * can access the fixed counter
+                 */
+                if (pmu->type->single_fixed && pmu->pmu_idx > 0)
+                        return -EINVAL;
+                hwc->config = ~0ULL;
+        } else {
+                hwc->config = event->attr.config & pmu->type->event_mask;
+                if (pmu->type->ops->hw_config) {
+                        ret = pmu->type->ops->hw_config(box, event);
+                        if (ret)
+                                return ret;
+                }
+        }
+
+        if (event->group_leader != event)
+                ret = uncore_validate_group(pmu, event);
+        else
+                ret = 0;
+
+        return ret;
+}
+
+static int __init uncore_pmu_register(struct intel_uncore_pmu *pmu)
+{
+        int ret;
+
+        pmu->pmu = (struct pmu) {
+                .attr_groups    = pmu->type->attr_groups,
+                .task_ctx_nr    = perf_invalid_context,
+                .event_init     = uncore_pmu_event_init,
+                .add            = uncore_pmu_event_add,
+                .del            = uncore_pmu_event_del,
+                .start          = uncore_pmu_event_start,
+                .stop           = uncore_pmu_event_stop,
+                .read           = uncore_pmu_event_read,
+        };
+
+        if (pmu->type->num_boxes == 1) {
+                if (strlen(pmu->type->name) > 0)
+                        sprintf(pmu->name, "uncore_%s", pmu->type->name);
+                else
+                        sprintf(pmu->name, "uncore");
+        } else {
+                sprintf(pmu->name, "uncore_%s_%d", pmu->type->name,
+                        pmu->pmu_idx);
+        }
+
+        ret = perf_pmu_register(&pmu->pmu, pmu->name, -1);
+        return ret;
+}
+
+static void __init uncore_type_exit(struct intel_uncore_type *type)
+{
+        int i;
+
+        for (i = 0; i < type->num_boxes; i++)
+                free_percpu(type->pmus[i].box);
+        kfree(type->pmus);
+        type->pmus = NULL;
+        kfree(type->attr_groups[1]);
+        type->attr_groups[1] = NULL;
+}
+
+static void uncore_types_exit(struct intel_uncore_type **types)
+{
+        int i;
+        for (i = 0; types[i]; i++)
+                uncore_type_exit(types[i]);
+}
+
+static int __init uncore_type_init(struct intel_uncore_type *type)
+{
+        struct intel_uncore_pmu *pmus;
+        struct attribute_group *events_group;
+        struct attribute **attrs;
+        int i, j;
+
+        pmus = kzalloc(sizeof(*pmus) * type->num_boxes, GFP_KERNEL);
+        if (!pmus)
+                return -ENOMEM;
+
+        type->unconstrainted = (struct event_constraint)
+                __EVENT_CONSTRAINT(0, (1ULL << type->num_counters) - 1,
+                                0, type->num_counters, 0);
+
+        for (i = 0; i < type->num_boxes; i++) {
+                pmus[i].func_id = -1;
+                pmus[i].pmu_idx = i;
+                pmus[i].type = type;
+                INIT_LIST_HEAD(&pmus[i].box_list);
+                pmus[i].box = alloc_percpu(struct intel_uncore_box *);
+                if (!pmus[i].box)
+                        goto fail;
+        }
+
+        if (type->event_descs) {
+                i = 0;
+                while (type->event_descs[i].attr.attr.name)
+                        i++;
+
+                events_group = kzalloc(sizeof(struct attribute *) * (i + 1) +
+                                        sizeof(*events_group), GFP_KERNEL);
+                if (!events_group)
+                        goto fail;
+
+                attrs = (struct attribute **)(events_group + 1);
+                events_group->name = "events";
+                events_group->attrs = attrs;
+
+                for (j = 0; j < i; j++)
+                        attrs[j] = &type->event_descs[j].attr.attr;
+
+                type->attr_groups[1] = events_group;
+        }
+
+        type->pmus = pmus;
+        return 0;
+fail:
+        uncore_type_exit(type);
+        return -ENOMEM;
+}
+
+static int __init uncore_types_init(struct intel_uncore_type **types)
+{
+        int i, ret;
+
+        for (i = 0; types[i]; i++) {
+                ret = uncore_type_init(types[i]);
+                if (ret)
+                        goto fail;
+        }
+        return 0;
+fail:
+        while (--i >= 0)
+                uncore_type_exit(types[i]);
+        return ret;
+}
+
+static struct pci_driver *uncore_pci_driver;
+static bool pcidrv_registered;
+
+/*
+ * add a pci uncore device
+ */
+static int __devinit uncore_pci_add(struct intel_uncore_type *type,
+                                    struct pci_dev *pdev)
+{
+        struct intel_uncore_pmu *pmu;
+        struct intel_uncore_box *box;
+        int i, phys_id;
+
+        phys_id = pcibus_to_physid[pdev->bus->number];
+        if (phys_id < 0)
+                return -ENODEV;
+
+        box = uncore_alloc_box(type, 0);
+        if (!box)
+                return -ENOMEM;
+
+        /*
+         * for performance monitoring unit with multiple boxes,
+         * each box has a different function id.
+         */
+        for (i = 0; i < type->num_boxes; i++) {
+                pmu = &type->pmus[i];
+                if (pmu->func_id == pdev->devfn)
+                        break;
+                if (pmu->func_id < 0) {
+                        pmu->func_id = pdev->devfn;
+                        break;
+                }
+                pmu = NULL;
+        }
+
+        if (!pmu) {
+                kfree(box);
+                return -EINVAL;
+        }
+
+        box->phys_id = phys_id;
+        box->pci_dev = pdev;
+        box->pmu = pmu;
+        uncore_box_init(box);
+        pci_set_drvdata(pdev, box);
+
+        raw_spin_lock(&uncore_box_lock);
+        list_add_tail(&box->list, &pmu->box_list);
+        raw_spin_unlock(&uncore_box_lock);
+
+        return 0;
+}
+
+static void uncore_pci_remove(struct pci_dev *pdev)
+{
+        struct intel_uncore_box *box = pci_get_drvdata(pdev);
+        struct intel_uncore_pmu *pmu = box->pmu;
+        int cpu, phys_id = pcibus_to_physid[pdev->bus->number];
+
+        if (WARN_ON_ONCE(phys_id != box->phys_id))
+                return;
+
+        raw_spin_lock(&uncore_box_lock);
+        list_del(&box->list);
+        raw_spin_unlock(&uncore_box_lock);
+
+        for_each_possible_cpu(cpu) {
+                if (*per_cpu_ptr(pmu->box, cpu) == box) {
+                        *per_cpu_ptr(pmu->box, cpu) = NULL;
+                        atomic_dec(&box->refcnt);
+                }
+        }
+
+        WARN_ON_ONCE(atomic_read(&box->refcnt) != 1);
+        kfree(box);
+}
+
+static int __devinit uncore_pci_probe(struct pci_dev *pdev,
+                                const struct pci_device_id *id)
+{
+        struct intel_uncore_type *type;
+
+        type = (struct intel_uncore_type *)id->driver_data;
+        return uncore_pci_add(type, pdev);
+}
+
+static int __init uncore_pci_init(void)
+{
+        int ret;
+
+        switch (boot_cpu_data.x86_model) {
+        case 45: /* Sandy Bridge-EP */
+                pci_uncores = snbep_pci_uncores;
+                uncore_pci_driver = &snbep_uncore_pci_driver;
+                snbep_pci2phy_map_init();
+                break;
+        default:
+                return 0;
+        }
+
+        ret = uncore_types_init(pci_uncores);
+        if (ret)
+                return ret;
+
+        uncore_pci_driver->probe = uncore_pci_probe;
+        uncore_pci_driver->remove = uncore_pci_remove;
+
+        ret = pci_register_driver(uncore_pci_driver);
+        if (ret == 0)
+                pcidrv_registered = true;
+        else
+                uncore_types_exit(pci_uncores);
+
+        return ret;
+}
+
+static void __init uncore_pci_exit(void)
+{
+        if (pcidrv_registered) {
+                pcidrv_registered = false;
+                pci_unregister_driver(uncore_pci_driver);
+                uncore_types_exit(pci_uncores);
+        }
+}
+
+static void __cpuinit uncore_cpu_dying(int cpu)
+{
+        struct intel_uncore_type *type;
+        struct intel_uncore_pmu *pmu;
+        struct intel_uncore_box *box;
+        int i, j;
+
+        for (i = 0; msr_uncores[i]; i++) {
+                type = msr_uncores[i];
+                for (j = 0; j < type->num_boxes; j++) {
+                        pmu = &type->pmus[j];
+                        box = *per_cpu_ptr(pmu->box, cpu);
+                        *per_cpu_ptr(pmu->box, cpu) = NULL;
+                        if (box && atomic_dec_and_test(&box->refcnt))
+                                kfree(box);
+                }
+        }
+}
+
+static int __cpuinit uncore_cpu_starting(int cpu)
+{
+        struct intel_uncore_type *type;
+        struct intel_uncore_pmu *pmu;
+        struct intel_uncore_box *box, *exist;
+        int i, j, k, phys_id;
+
+        phys_id = topology_physical_package_id(cpu);
+
+        for (i = 0; msr_uncores[i]; i++) {
+                type = msr_uncores[i];
+                for (j = 0; j < type->num_boxes; j++) {
+                        pmu = &type->pmus[j];
+                        box = *per_cpu_ptr(pmu->box, cpu);
+                        /* called by uncore_cpu_init? */
+                        if (box && box->phys_id >= 0) {
+                                uncore_box_init(box);
+                                continue;
+                        }
+
+                        for_each_online_cpu(k) {
+                                exist = *per_cpu_ptr(pmu->box, k);
+                                if (exist && exist->phys_id == phys_id) {
+                                        atomic_inc(&exist->refcnt);
+                                        *per_cpu_ptr(pmu->box, cpu) = exist;
+                                        kfree(box);
+                                        box = NULL;
+                                        break;
+                                }
+                        }
+
+                        if (box) {
+                                box->phys_id = phys_id;
+                                uncore_box_init(box);
+                        }
+                }
+        }
+        return 0;
+}
+
+static int __cpuinit uncore_cpu_prepare(int cpu, int phys_id)
+{
+        struct intel_uncore_type *type;
+        struct intel_uncore_pmu *pmu;
+        struct intel_uncore_box *box;
+        int i, j;
+
+        for (i = 0; msr_uncores[i]; i++) {
+                type = msr_uncores[i];
+                for (j = 0; j < type->num_boxes; j++) {
+                        pmu = &type->pmus[j];
+                        if (pmu->func_id < 0)
+                                pmu->func_id = j;
+
+                        box = uncore_alloc_box(type, cpu);
+                        if (!box)
+                                return -ENOMEM;
+
+                        box->pmu = pmu;
+                        box->phys_id = phys_id;
+                        *per_cpu_ptr(pmu->box, cpu) = box;
+                }
+        }
+        return 0;
+}
+
+static void __cpuinit uncore_change_context(struct intel_uncore_type **uncores,
+                                            int old_cpu, int new_cpu)
+{
+        struct intel_uncore_type *type;
+        struct intel_uncore_pmu *pmu;
+        struct intel_uncore_box *box;
+        int i, j;
+
+        for (i = 0; uncores[i]; i++) {
+                type = uncores[i];
+                for (j = 0; j < type->num_boxes; j++) {
+                        pmu = &type->pmus[j];
+                        if (old_cpu < 0)
+                                box = uncore_pmu_to_box(pmu, new_cpu);
+                        else
+                                box = uncore_pmu_to_box(pmu, old_cpu);
+                        if (!box)
+                                continue;
+
+                        if (old_cpu < 0) {
+                                WARN_ON_ONCE(box->cpu != -1);
+                                box->cpu = new_cpu;
+                                continue;
+                        }
+
+                        WARN_ON_ONCE(box->cpu != old_cpu);
+                        if (new_cpu >= 0) {
+                                uncore_pmu_cancel_hrtimer(box);
+                                perf_pmu_migrate_context(&pmu->pmu,
+                                                old_cpu, new_cpu);
+                                box->cpu = new_cpu;
+                        } else {
+                                box->cpu = -1;
+                        }
+                }
+        }
+}
+
+static void __cpuinit uncore_event_exit_cpu(int cpu)
+{
+        int i, phys_id, target;
+
+        /* if exiting cpu is used for collecting uncore events */
+        if (!cpumask_test_and_clear_cpu(cpu, &uncore_cpu_mask))
+                return;
+
+        /* find a new cpu to collect uncore events */
+        phys_id = topology_physical_package_id(cpu);
+        target = -1;
+        for_each_online_cpu(i) {
+                if (i == cpu)
+                        continue;
+                if (phys_id == topology_physical_package_id(i)) {
+                        target = i;
+                        break;
+                }
+        }
+
+        /* migrate uncore events to the new cpu */
+        if (target >= 0)
+                cpumask_set_cpu(target, &uncore_cpu_mask);
+
+        uncore_change_context(msr_uncores, cpu, target);
+        uncore_change_context(pci_uncores, cpu, target);
+}
+
+static void __cpuinit uncore_event_init_cpu(int cpu)
+{
+        int i, phys_id;
+
+        phys_id = topology_physical_package_id(cpu);
+        for_each_cpu(i, &uncore_cpu_mask) {
+                if (phys_id == topology_physical_package_id(i))
+                        return;
+        }
+
+        cpumask_set_cpu(cpu, &uncore_cpu_mask);
+
+        uncore_change_context(msr_uncores, -1, cpu);
+        uncore_change_context(pci_uncores, -1, cpu);
+}
+
+static int __cpuinit uncore_cpu_notifier(struct notifier_block *self,
+                                         unsigned long action, void *hcpu)
+{
+        unsigned int cpu = (long)hcpu;
+
+        /* allocate/free data structure for uncore box */
+        switch (action & ~CPU_TASKS_FROZEN) {
+        case CPU_UP_PREPARE:
+                uncore_cpu_prepare(cpu, -1);
+                break;
+        case CPU_STARTING:
+                uncore_cpu_starting(cpu);
+                break;
+        case CPU_UP_CANCELED:
+        case CPU_DYING:
+                uncore_cpu_dying(cpu);
+                break;
+        default:
+                break;
+        }
+
+        /* select the cpu that collects uncore events */
+        switch (action & ~CPU_TASKS_FROZEN) {
+        case CPU_DOWN_FAILED:
+        case CPU_STARTING:
+                uncore_event_init_cpu(cpu);
+                break;
+        case CPU_DOWN_PREPARE:
+                uncore_event_exit_cpu(cpu);
+                break;
+        default:
+                break;
+        }
+
+        return NOTIFY_OK;
+}
+
+static struct notifier_block uncore_cpu_nb __cpuinitdata = {
+        .notifier_call = uncore_cpu_notifier,
+        /*
+         * to migrate uncore events, our notifier should be executed
+         * before perf core's notifier.
+         */
+        .priority = CPU_PRI_PERF + 1,
+};
+
+static void __init uncore_cpu_setup(void *dummy)
+{
+        uncore_cpu_starting(smp_processor_id());
+}
+
+static int __init uncore_cpu_init(void)
+{
+        int ret, cpu, max_cores;
+
+        max_cores = boot_cpu_data.x86_max_cores;
+        switch (boot_cpu_data.x86_model) {
+        case 26: /* Nehalem */
+        case 30:
+        case 37: /* Westmere */
+        case 44:
+                msr_uncores = nhm_msr_uncores;
+                break;
+        case 42: /* Sandy Bridge */
+                if (snb_uncore_cbox.num_boxes > max_cores)
+                        snb_uncore_cbox.num_boxes = max_cores;
+                msr_uncores = snb_msr_uncores;
+                break;
+        case 45: /* Sandy Birdge-EP */
+                if (snbep_uncore_cbox.num_boxes > max_cores)
+                        snbep_uncore_cbox.num_boxes = max_cores;
+                msr_uncores = snbep_msr_uncores;
+                break;
+        default:
+                return 0;
+        }
+
+        ret = uncore_types_init(msr_uncores);
+        if (ret)
+                return ret;
+
+        get_online_cpus();
+
+        for_each_online_cpu(cpu) {
+                int i, phys_id = topology_physical_package_id(cpu);
+
+                for_each_cpu(i, &uncore_cpu_mask) {
+                        if (phys_id == topology_physical_package_id(i)) {
+                                phys_id = -1;
+                                break;
+                        }
+                }
+                if (phys_id < 0)
+                        continue;
+
+                uncore_cpu_prepare(cpu, phys_id);
+                uncore_event_init_cpu(cpu);
+        }
+        on_each_cpu(uncore_cpu_setup, NULL, 1);
+
+        register_cpu_notifier(&uncore_cpu_nb);
+
+        put_online_cpus();
+
+        return 0;
+}
+
+static int __init uncore_pmus_register(void)
+{
+        struct intel_uncore_pmu *pmu;
+        struct intel_uncore_type *type;
+        int i, j;
+
+        for (i = 0; msr_uncores[i]; i++) {
+                type = msr_uncores[i];
+                for (j = 0; j < type->num_boxes; j++) {
+                        pmu = &type->pmus[j];
+                        uncore_pmu_register(pmu);
+                }
+        }
+
+        for (i = 0; pci_uncores[i]; i++) {
+                type = pci_uncores[i];
+                for (j = 0; j < type->num_boxes; j++) {
+                        pmu = &type->pmus[j];
+                        uncore_pmu_register(pmu);
+                }
+        }
+
+        return 0;
+}
+
+static int __init intel_uncore_init(void)
+{
+        int ret;
+
+        if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
+                return -ENODEV;
+
+        ret = uncore_pci_init();
+        if (ret)
+                goto fail;
+        ret = uncore_cpu_init();
+        if (ret) {
+                uncore_pci_exit();
+                goto fail;
+        }
+
+        uncore_pmus_register();
+        return 0;
+fail:
+        return ret;
+}
+device_initcall(intel_uncore_init);
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
new file mode 100644
index 000000000000..b13e9ea81def
--- /dev/null
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -0,0 +1,424 @@
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/perf_event.h>
+#include "perf_event.h"
+
+#define UNCORE_PMU_NAME_LEN             32
+#define UNCORE_BOX_HASH_SIZE            8
+
+#define UNCORE_PMU_HRTIMER_INTERVAL     (60 * NSEC_PER_SEC)
+
+#define UNCORE_FIXED_EVENT              0xff
+#define UNCORE_PMC_IDX_MAX_GENERIC      8
+#define UNCORE_PMC_IDX_FIXED            UNCORE_PMC_IDX_MAX_GENERIC
+#define UNCORE_PMC_IDX_MAX              (UNCORE_PMC_IDX_FIXED + 1)
+
+#define UNCORE_EVENT_CONSTRAINT(c, n) EVENT_CONSTRAINT(c, n, 0xff)
+
+/* SNB event control */
+#define SNB_UNC_CTL_EV_SEL_MASK                 0x000000ff
+#define SNB_UNC_CTL_UMASK_MASK                  0x0000ff00
+#define SNB_UNC_CTL_EDGE_DET                    (1 << 18)
+#define SNB_UNC_CTL_EN                          (1 << 22)
+#define SNB_UNC_CTL_INVERT                      (1 << 23)
+#define SNB_UNC_CTL_CMASK_MASK                  0x1f000000
+#define NHM_UNC_CTL_CMASK_MASK                  0xff000000
+#define NHM_UNC_FIXED_CTR_CTL_EN                (1 << 0)
+
+#define SNB_UNC_RAW_EVENT_MASK                  (SNB_UNC_CTL_EV_SEL_MASK | \
+                                                 SNB_UNC_CTL_UMASK_MASK | \
+                                                 SNB_UNC_CTL_EDGE_DET | \
+                                                 SNB_UNC_CTL_INVERT | \
+                                                 SNB_UNC_CTL_CMASK_MASK)
+
+#define NHM_UNC_RAW_EVENT_MASK                  (SNB_UNC_CTL_EV_SEL_MASK | \
+                                                 SNB_UNC_CTL_UMASK_MASK | \
+                                                 SNB_UNC_CTL_EDGE_DET | \
+                                                 SNB_UNC_CTL_INVERT | \
+                                                 NHM_UNC_CTL_CMASK_MASK)
+
+/* SNB global control register */
+#define SNB_UNC_PERF_GLOBAL_CTL                 0x391
+#define SNB_UNC_FIXED_CTR_CTRL                  0x394
+#define SNB_UNC_FIXED_CTR                       0x395
+
+/* SNB uncore global control */
+#define SNB_UNC_GLOBAL_CTL_CORE_ALL             ((1 << 4) - 1)
+#define SNB_UNC_GLOBAL_CTL_EN                   (1 << 29)
+
+/* SNB Cbo register */
+#define SNB_UNC_CBO_0_PERFEVTSEL0               0x700
+#define SNB_UNC_CBO_0_PER_CTR0                  0x706
+#define SNB_UNC_CBO_MSR_OFFSET                  0x10
+
+/* NHM global control register */
+#define NHM_UNC_PERF_GLOBAL_CTL                 0x391
+#define NHM_UNC_FIXED_CTR                       0x394
+#define NHM_UNC_FIXED_CTR_CTRL                  0x395
+
+/* NHM uncore global control */
+#define NHM_UNC_GLOBAL_CTL_EN_PC_ALL            ((1ULL << 8) - 1)
+#define NHM_UNC_GLOBAL_CTL_EN_FC                (1ULL << 32)
+
+/* NHM uncore register */
+#define NHM_UNC_PERFEVTSEL0                     0x3c0
+#define NHM_UNC_UNCORE_PMC0                     0x3b0
+
+/* SNB-EP Box level control */
+#define SNBEP_PMON_BOX_CTL_RST_CTRL     (1 << 0)
+#define SNBEP_PMON_BOX_CTL_RST_CTRS     (1 << 1)
+#define SNBEP_PMON_BOX_CTL_FRZ          (1 << 8)
+#define SNBEP_PMON_BOX_CTL_FRZ_EN       (1 << 16)
+#define SNBEP_PMON_BOX_CTL_INT          (SNBEP_PMON_BOX_CTL_RST_CTRL | \
+                                         SNBEP_PMON_BOX_CTL_RST_CTRS | \
+                                         SNBEP_PMON_BOX_CTL_FRZ_EN)
+/* SNB-EP event control */
+#define SNBEP_PMON_CTL_EV_SEL_MASK      0x000000ff
+#define SNBEP_PMON_CTL_UMASK_MASK       0x0000ff00
+#define SNBEP_PMON_CTL_RST              (1 << 17)
+#define SNBEP_PMON_CTL_EDGE_DET         (1 << 18)
+#define SNBEP_PMON_CTL_EV_SEL_EXT       (1 << 21)       /* only for QPI */
+#define SNBEP_PMON_CTL_EN               (1 << 22)
+#define SNBEP_PMON_CTL_INVERT           (1 << 23)
+#define SNBEP_PMON_CTL_TRESH_MASK       0xff000000
+#define SNBEP_PMON_RAW_EVENT_MASK       (SNBEP_PMON_CTL_EV_SEL_MASK | \
+                                         SNBEP_PMON_CTL_UMASK_MASK | \
+                                         SNBEP_PMON_CTL_EDGE_DET | \
+                                         SNBEP_PMON_CTL_INVERT | \
+                                         SNBEP_PMON_CTL_TRESH_MASK)
+
+/* SNB-EP Ubox event control */
+#define SNBEP_U_MSR_PMON_CTL_TRESH_MASK         0x1f000000
+#define SNBEP_U_MSR_PMON_RAW_EVENT_MASK         \
+                                (SNBEP_PMON_CTL_EV_SEL_MASK | \
+                                 SNBEP_PMON_CTL_UMASK_MASK | \
+                                 SNBEP_PMON_CTL_EDGE_DET | \
+                                 SNBEP_PMON_CTL_INVERT | \
+                                 SNBEP_U_MSR_PMON_CTL_TRESH_MASK)
+
+#define SNBEP_CBO_PMON_CTL_TID_EN               (1 << 19)
+#define SNBEP_CBO_MSR_PMON_RAW_EVENT_MASK       (SNBEP_PMON_RAW_EVENT_MASK | \
+                                                 SNBEP_CBO_PMON_CTL_TID_EN)
+
+/* SNB-EP PCU event control */
+#define SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK     0x0000c000
+#define SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK       0x1f000000
+#define SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT       (1 << 30)
+#define SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET     (1 << 31)
+#define SNBEP_PCU_MSR_PMON_RAW_EVENT_MASK       \
+                                (SNBEP_PMON_CTL_EV_SEL_MASK | \
+                                 SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
+                                 SNBEP_PMON_CTL_EDGE_DET | \
+                                 SNBEP_PMON_CTL_INVERT | \
+                                 SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \
+                                 SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
+                                 SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET)
+
+/* SNB-EP pci control register */
+#define SNBEP_PCI_PMON_BOX_CTL                  0xf4
+#define SNBEP_PCI_PMON_CTL0                     0xd8
+/* SNB-EP pci counter register */
+#define SNBEP_PCI_PMON_CTR0                     0xa0
+
+/* SNB-EP home agent register */
+#define SNBEP_HA_PCI_PMON_BOX_ADDRMATCH0        0x40
+#define SNBEP_HA_PCI_PMON_BOX_ADDRMATCH1        0x44
+#define SNBEP_HA_PCI_PMON_BOX_OPCODEMATCH       0x48
+/* SNB-EP memory controller register */
+#define SNBEP_MC_CHy_PCI_PMON_FIXED_CTL         0xf0
+#define SNBEP_MC_CHy_PCI_PMON_FIXED_CTR         0xd0
+/* SNB-EP QPI register */
+#define SNBEP_Q_Py_PCI_PMON_PKT_MATCH0          0x228
+#define SNBEP_Q_Py_PCI_PMON_PKT_MATCH1          0x22c
+#define SNBEP_Q_Py_PCI_PMON_PKT_MASK0           0x238
+#define SNBEP_Q_Py_PCI_PMON_PKT_MASK1           0x23c
+
+/* SNB-EP Ubox register */
+#define SNBEP_U_MSR_PMON_CTR0                   0xc16
+#define SNBEP_U_MSR_PMON_CTL0                   0xc10
+
+#define SNBEP_U_MSR_PMON_UCLK_FIXED_CTL         0xc08
+#define SNBEP_U_MSR_PMON_UCLK_FIXED_CTR         0xc09
+
+/* SNB-EP Cbo register */
+#define SNBEP_C0_MSR_PMON_CTR0                  0xd16
+#define SNBEP_C0_MSR_PMON_CTL0                  0xd10
+#define SNBEP_C0_MSR_PMON_BOX_CTL               0xd04
+#define SNBEP_C0_MSR_PMON_BOX_FILTER            0xd14
+#define SNBEP_CB0_MSR_PMON_BOX_FILTER_MASK      0xfffffc1f
+#define SNBEP_CBO_MSR_OFFSET                    0x20
+
+/* SNB-EP PCU register */
+#define SNBEP_PCU_MSR_PMON_CTR0                 0xc36
+#define SNBEP_PCU_MSR_PMON_CTL0                 0xc30
+#define SNBEP_PCU_MSR_PMON_BOX_CTL              0xc24
+#define SNBEP_PCU_MSR_PMON_BOX_FILTER           0xc34
+#define SNBEP_PCU_MSR_PMON_BOX_FILTER_MASK      0xffffffff
+#define SNBEP_PCU_MSR_CORE_C3_CTR               0x3fc
+#define SNBEP_PCU_MSR_CORE_C6_CTR               0x3fd
+
+struct intel_uncore_ops;
+struct intel_uncore_pmu;
+struct intel_uncore_box;
+struct uncore_event_desc;
+
+struct intel_uncore_type {
+        const char *name;
+        int num_counters;
+        int num_boxes;
+        int perf_ctr_bits;
+        int fixed_ctr_bits;
+        unsigned perf_ctr;
+        unsigned event_ctl;
+        unsigned event_mask;
+        unsigned fixed_ctr;
+        unsigned fixed_ctl;
+        unsigned box_ctl;
+        unsigned msr_offset;
+        unsigned num_shared_regs:8;
+        unsigned single_fixed:1;
+        struct event_constraint unconstrainted;
+        struct event_constraint *constraints;
+        struct intel_uncore_pmu *pmus;
+        struct intel_uncore_ops *ops;
+        struct uncore_event_desc *event_descs;
+        const struct attribute_group *attr_groups[3];
+};
+
+#define format_group attr_groups[0]
+
+struct intel_uncore_ops {
+        void (*init_box)(struct intel_uncore_box *);
+        void (*disable_box)(struct intel_uncore_box *);
+        void (*enable_box)(struct intel_uncore_box *);
+        void (*disable_event)(struct intel_uncore_box *, struct perf_event *);
+        void (*enable_event)(struct intel_uncore_box *, struct perf_event *);
+        u64 (*read_counter)(struct intel_uncore_box *, struct perf_event *);
+        int (*hw_config)(struct intel_uncore_box *, struct perf_event *);
+        struct event_constraint *(*get_constraint)(struct intel_uncore_box *,
+                                                   struct perf_event *);
+        void (*put_constraint)(struct intel_uncore_box *, struct perf_event *);
+};
+
+struct intel_uncore_pmu {
+        struct pmu pmu;
+        char name[UNCORE_PMU_NAME_LEN];
+        int pmu_idx;
+        int func_id;
+        struct intel_uncore_type *type;
+        struct intel_uncore_box ** __percpu box;
+        struct list_head box_list;
+};
+
+struct intel_uncore_extra_reg {
+        raw_spinlock_t lock;
+        u64 config1;
+        atomic_t ref;
+};
+
+struct intel_uncore_box {
+        int phys_id;
+        int n_active;   /* number of active events */
+        int n_events;
+        int cpu;        /* cpu to collect events */
+        unsigned long flags;
+        atomic_t refcnt;
+        struct perf_event *events[UNCORE_PMC_IDX_MAX];
+        struct perf_event *event_list[UNCORE_PMC_IDX_MAX];
+        unsigned long active_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)];
+        u64 tags[UNCORE_PMC_IDX_MAX];
+        struct pci_dev *pci_dev;
+        struct intel_uncore_pmu *pmu;
+        struct hrtimer hrtimer;
+        struct list_head list;
+        struct intel_uncore_extra_reg shared_regs[0];
+};
+
+#define UNCORE_BOX_FLAG_INITIATED       0
+
+struct uncore_event_desc {
+        struct kobj_attribute attr;
+        const char *config;
+};
+
+#define INTEL_UNCORE_EVENT_DESC(_name, _config)                 \
+{                                                               \
+        .attr   = __ATTR(_name, 0444, uncore_event_show, NULL), \
+        .config = _config,                                      \
+}
+
+#define DEFINE_UNCORE_FORMAT_ATTR(_var, _name, _format)                 \
+static ssize_t __uncore_##_var##_show(struct kobject *kobj,             \
+                                struct kobj_attribute *attr,            \
+                                char *page)                             \
+{                                                                       \
+        BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE);                     \
+        return sprintf(page, _format "\n");                             \
+}                                                                       \
+static struct kobj_attribute format_attr_##_var =                       \
+        __ATTR(_name, 0444, __uncore_##_var##_show, NULL)
+
+
+static ssize_t uncore_event_show(struct kobject *kobj,
+                                struct kobj_attribute *attr, char *buf)
+{
+        struct uncore_event_desc *event =
+                container_of(attr, struct uncore_event_desc, attr);
+        return sprintf(buf, "%s", event->config);
+}
+
+static inline unsigned uncore_pci_box_ctl(struct intel_uncore_box *box)
+{
+        return box->pmu->type->box_ctl;
+}
+
+static inline unsigned uncore_pci_fixed_ctl(struct intel_uncore_box *box)
+{
+        return box->pmu->type->fixed_ctl;
+}
+
+static inline unsigned uncore_pci_fixed_ctr(struct intel_uncore_box *box)
+{
+        return box->pmu->type->fixed_ctr;
+}
+
+static inline
+unsigned uncore_pci_event_ctl(struct intel_uncore_box *box, int idx)
+{
+        return idx * 4 + box->pmu->type->event_ctl;
+}
+
+static inline
+unsigned uncore_pci_perf_ctr(struct intel_uncore_box *box, int idx)
+{
+        return idx * 8 + box->pmu->type->perf_ctr;
+}
+
+static inline
+unsigned uncore_msr_box_ctl(struct intel_uncore_box *box)
+{
+        if (!box->pmu->type->box_ctl)
+                return 0;
+        return box->pmu->type->box_ctl +
+                box->pmu->type->msr_offset * box->pmu->pmu_idx;
+}
+
+static inline
+unsigned uncore_msr_fixed_ctl(struct intel_uncore_box *box)
+{
+        if (!box->pmu->type->fixed_ctl)
+                return 0;
+        return box->pmu->type->fixed_ctl +
+                box->pmu->type->msr_offset * box->pmu->pmu_idx;
+}
+
+static inline
+unsigned uncore_msr_fixed_ctr(struct intel_uncore_box *box)
+{
+        return box->pmu->type->fixed_ctr +
+                box->pmu->type->msr_offset * box->pmu->pmu_idx;
+}
+
+static inline
+unsigned uncore_msr_event_ctl(struct intel_uncore_box *box, int idx)
+{
+        return idx + box->pmu->type->event_ctl +
+                box->pmu->type->msr_offset * box->pmu->pmu_idx;
+}
+
+static inline
+unsigned uncore_msr_perf_ctr(struct intel_uncore_box *box, int idx)
+{
+        return idx + box->pmu->type->perf_ctr +
+                box->pmu->type->msr_offset * box->pmu->pmu_idx;
+}
+
+static inline
+unsigned uncore_fixed_ctl(struct intel_uncore_box *box)
+{
+        if (box->pci_dev)
+                return uncore_pci_fixed_ctl(box);
+        else
+                return uncore_msr_fixed_ctl(box);
+}
+
+static inline
+unsigned uncore_fixed_ctr(struct intel_uncore_box *box)
+{
+        if (box->pci_dev)
+                return uncore_pci_fixed_ctr(box);
+        else
+                return uncore_msr_fixed_ctr(box);
+}
+
+static inline
+unsigned uncore_event_ctl(struct intel_uncore_box *box, int idx)
+{
+        if (box->pci_dev)
+                return uncore_pci_event_ctl(box, idx);
+        else
+                return uncore_msr_event_ctl(box, idx);
+}
+
+static inline
+unsigned uncore_perf_ctr(struct intel_uncore_box *box, int idx)
+{
+        if (box->pci_dev)
+                return uncore_pci_perf_ctr(box, idx);
+        else
+                return uncore_msr_perf_ctr(box, idx);
+}
+
+static inline int uncore_perf_ctr_bits(struct intel_uncore_box *box)
+{
+        return box->pmu->type->perf_ctr_bits;
+}
+
+static inline int uncore_fixed_ctr_bits(struct intel_uncore_box *box)
+{
+        return box->pmu->type->fixed_ctr_bits;
+}
+
+static inline int uncore_num_counters(struct intel_uncore_box *box)
+{
+        return box->pmu->type->num_counters;
+}
+
+static inline void uncore_disable_box(struct intel_uncore_box *box)
+{
+        if (box->pmu->type->ops->disable_box)
+                box->pmu->type->ops->disable_box(box);
+}
+
+static inline void uncore_enable_box(struct intel_uncore_box *box)
+{
+        if (box->pmu->type->ops->enable_box)
+                box->pmu->type->ops->enable_box(box);
+}
+
+static inline void uncore_disable_event(struct intel_uncore_box *box,
+                                struct perf_event *event)
+{
+        box->pmu->type->ops->disable_event(box, event);
+}
+
+static inline void uncore_enable_event(struct intel_uncore_box *box,
+                                struct perf_event *event)
+{
+        box->pmu->type->ops->enable_event(box, event);
+}
+
+static inline u64 uncore_read_counter(struct intel_uncore_box *box,
+                                struct perf_event *event)
+{
+        return box->pmu->type->ops->read_counter(box, event);
+}
+
+static inline void uncore_box_init(struct intel_uncore_box *box)
+{
+        if (!test_and_set_bit(UNCORE_BOX_FLAG_INITIATED, &box->flags)) {
+                if (box->pmu->type->ops->init_box)
+                        box->pmu->type->ops->init_box(box);
+        }
+}
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c
index 47124a73dd73..92c7e39a079f 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/kernel/cpu/perf_event_p4.c
@@ -895,8 +895,8 @@ static void p4_pmu_disable_pebs(void)
          * So at moment let leave metrics turned on forever -- it's
          * ok for now but need to be revisited!
          *
-         * (void)checking_wrmsrl(MSR_IA32_PEBS_ENABLE, (u64)0);
-         * (void)checking_wrmsrl(MSR_P4_PEBS_MATRIX_VERT, (u64)0);
+         * (void)wrmsrl_safe(MSR_IA32_PEBS_ENABLE, (u64)0);
+         * (void)wrmsrl_safe(MSR_P4_PEBS_MATRIX_VERT, (u64)0);
          */
 }
 
@@ -909,7 +909,7 @@ static inline void p4_pmu_disable_event(struct perf_event *event)
          * state we need to clear P4_CCCR_OVF, otherwise interrupt get
          * asserted again and again
          */
-        (void)checking_wrmsrl(hwc->config_base,
+        (void)wrmsrl_safe(hwc->config_base,
                 (u64)(p4_config_unpack_cccr(hwc->config)) &
                         ~P4_CCCR_ENABLE & ~P4_CCCR_OVF & ~P4_CCCR_RESERVED);
 }
@@ -943,8 +943,8 @@ static void p4_pmu_enable_pebs(u64 config)
 
         bind = &p4_pebs_bind_map[idx];
 
-        (void)checking_wrmsrl(MSR_IA32_PEBS_ENABLE,     (u64)bind->metric_pebs);
-        (void)checking_wrmsrl(MSR_P4_PEBS_MATRIX_VERT,  (u64)bind->metric_vert);
+        (void)wrmsrl_safe(MSR_IA32_PEBS_ENABLE, (u64)bind->metric_pebs);
+        (void)wrmsrl_safe(MSR_P4_PEBS_MATRIX_VERT,      (u64)bind->metric_vert);
 }
 
 static void p4_pmu_enable_event(struct perf_event *event)
@@ -978,8 +978,8 @@ static void p4_pmu_enable_event(struct perf_event *event)
          */
         p4_pmu_enable_pebs(hwc->config);
 
-        (void)checking_wrmsrl(escr_addr, escr_conf);
-        (void)checking_wrmsrl(hwc->config_base,
+        (void)wrmsrl_safe(escr_addr, escr_conf);
+        (void)wrmsrl_safe(hwc->config_base,
                                 (cccr & ~P4_CCCR_RESERVED) | P4_CCCR_ENABLE);
 }
 
@@ -1325,7 +1325,7 @@ __init int p4_pmu_init(void)
         unsigned int low, high;
 
         /* If we get stripped -- indexing fails */
-        BUILD_BUG_ON(ARCH_P4_MAX_CCCR > X86_PMC_MAX_GENERIC);
+        BUILD_BUG_ON(ARCH_P4_MAX_CCCR > INTEL_PMC_MAX_GENERIC);
 
         rdmsr(MSR_IA32_MISC_ENABLE, low, high);
         if (!(low & (1 << 7))) {
diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c
index 32bcfc7dd230..e4dd0f7a0453 100644
--- a/arch/x86/kernel/cpu/perf_event_p6.c
+++ b/arch/x86/kernel/cpu/perf_event_p6.c
@@ -71,7 +71,7 @@ p6_pmu_disable_event(struct perf_event *event)
         if (cpuc->enabled)
                 val |= ARCH_PERFMON_EVENTSEL_ENABLE;
 
-        (void)checking_wrmsrl(hwc->config_base, val);
+        (void)wrmsrl_safe(hwc->config_base, val);
 }
 
 static void p6_pmu_enable_event(struct perf_event *event)
@@ -84,7 +84,7 @@ static void p6_pmu_enable_event(struct perf_event *event)
         if (cpuc->enabled)
                 val |= ARCH_PERFMON_EVENTSEL_ENABLE;
 
-        (void)checking_wrmsrl(hwc->config_base, val);
+        (void)wrmsrl_safe(hwc->config_base, val);
 }
 
 PMU_FORMAT_ATTR(event,  "config:0-7"    );
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 571246d81edf..ae42418bc50f 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -27,8 +27,8 @@ static int die_counter;
 
 void printk_address(unsigned long address, int reliable)
 {
-        printk(" [<%p>] %s%pB\n", (void *) address,
-                        reliable ? "" : "? ", (void *) address);
+        pr_cont(" [<%p>] %s%pB\n",
+                (void *)address, reliable ? "" : "? ", (void *)address);
 }
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
@@ -271,6 +271,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
                         current->thread.trap_nr, SIGSEGV) == NOTIFY_STOP)
                 return 1;
 
+        print_modules();
         show_regs(regs);
 #ifdef CONFIG_X86_32
         if (user_mode_vm(regs)) {
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index e0b1d783daab..1038a417ea53 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -73,11 +73,11 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
                 if (kstack_end(stack))
                         break;
                 if (i && ((i % STACKSLOTS_PER_LINE) == 0))
-                        printk(KERN_CONT "\n");
-                printk(KERN_CONT " %08lx", *stack++);
+                        pr_cont("\n");
+                pr_cont(" %08lx", *stack++);
                 touch_nmi_watchdog();
         }
-        printk(KERN_CONT "\n");
+        pr_cont("\n");
         show_trace_log_lvl(task, regs, sp, bp, log_lvl);
 }
 
@@ -86,12 +86,11 @@ void show_regs(struct pt_regs *regs)
 {
         int i;
 
-        print_modules();
         __show_regs(regs, !user_mode_vm(regs));
 
-        printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n",
-                TASK_COMM_LEN, current->comm, task_pid_nr(current),
-                current_thread_info(), current, task_thread_info(current));
+        pr_emerg("Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n",
+                 TASK_COMM_LEN, current->comm, task_pid_nr(current),
+                 current_thread_info(), current, task_thread_info(current));
         /*
          * When in-kernel, we also print out the stack and code at the
          * time of the fault..
@@ -102,10 +101,10 @@ void show_regs(struct pt_regs *regs)
                 unsigned char c;
                 u8 *ip;
 
-                printk(KERN_EMERG "Stack:\n");
+                pr_emerg("Stack:\n");
                 show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
 
-                printk(KERN_EMERG "Code: ");
+                pr_emerg("Code:");
 
                 ip = (u8 *)regs->ip - code_prologue;
                 if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
@@ -116,16 +115,16 @@ void show_regs(struct pt_regs *regs)
                 for (i = 0; i < code_len; i++, ip++) {
                         if (ip < (u8 *)PAGE_OFFSET ||
                                         probe_kernel_address(ip, c)) {
-                                printk(KERN_CONT " Bad EIP value.");
+                                pr_cont("  Bad EIP value.");
                                 break;
                         }
                         if (ip == (u8 *)regs->ip)
-                                printk(KERN_CONT "<%02x> ", c);
+                                pr_cont(" <%02x>", c);
                         else
-                                printk(KERN_CONT "%02x ", c);
+                                pr_cont(" %02x", c);
                 }
         }
-        printk(KERN_CONT "\n");
+        pr_cont("\n");
 }
 
 int is_valid_bugaddr(unsigned long ip)
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 791b76122aa8..b653675d5288 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -228,20 +228,20 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
                 if (stack >= irq_stack && stack <= irq_stack_end) {
                         if (stack == irq_stack_end) {
                                 stack = (unsigned long *) (irq_stack_end[-1]);
-                                printk(KERN_CONT " <EOI> ");
+                                pr_cont(" <EOI> ");
                         }
                 } else {
                 if (((long) stack & (THREAD_SIZE-1)) == 0)
                         break;
                 }
                 if (i && ((i % STACKSLOTS_PER_LINE) == 0))
-                        printk(KERN_CONT "\n");
-                printk(KERN_CONT " %016lx", *stack++);
+                        pr_cont("\n");
+                pr_cont(" %016lx", *stack++);
                 touch_nmi_watchdog();
         }
         preempt_enable();
 
-        printk(KERN_CONT "\n");
+        pr_cont("\n");
         show_trace_log_lvl(task, regs, sp, bp, log_lvl);
 }
 
@@ -254,10 +254,9 @@ void show_regs(struct pt_regs *regs)
 
         sp = regs->sp;
         printk("CPU %d ", cpu);
-        print_modules();
         __show_regs(regs, 1);
-        printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
-                cur->comm, cur->pid, task_thread_info(cur), cur);
+        printk(KERN_DEFAULT "Process %s (pid: %d, threadinfo %p, task %p)\n",
+               cur->comm, cur->pid, task_thread_info(cur), cur);
 
         /*
          * When in-kernel, we also print out the stack and code at the
@@ -284,16 +283,16 @@ void show_regs(struct pt_regs *regs)
                 for (i = 0; i < code_len; i++, ip++) {
                         if (ip < (u8 *)PAGE_OFFSET ||
                                         probe_kernel_address(ip, c)) {
-                                printk(KERN_CONT " Bad RIP value.");
+                                pr_cont(" Bad RIP value.");
                                 break;
                         }
                         if (ip == (u8 *)regs->ip)
-                                printk(KERN_CONT "<%02x> ", c);
+                                pr_cont("<%02x> ", c);
                         else
-                                printk(KERN_CONT "%02x ", c);
+                                pr_cont("%02x ", c);
                 }
         }
-        printk(KERN_CONT "\n");
+        pr_cont("\n");
 }
 
 int is_valid_bugaddr(unsigned long ip)
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 7d65133b51be..111f6bbd8b38 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1758,10 +1758,30 @@ end_repeat_nmi:
          */
         call save_paranoid
         DEFAULT_FRAME 0
+
+        /*
+         * Save off the CR2 register. If we take a page fault in the NMI then
+         * it could corrupt the CR2 value. If the NMI preempts a page fault
+         * handler before it was able to read the CR2 register, and then the
+         * NMI itself takes a page fault, the page fault that was preempted
+         * will read the information from the NMI page fault and not the
+         * origin fault. Save it off and restore it if it changes.
+         * Use the r12 callee-saved register.
+         */
+        movq %cr2, %r12
+
         /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
         movq %rsp,%rdi
         movq $-1,%rsi
         call do_nmi
+
+        /* Did the NMI take a page fault? Restore cr2 if it did */
+        movq %cr2, %rcx
+        cmpq %rcx, %r12
+        je 1f
+        movq %r12, %cr2
+1:
+        
         testl %ebx,%ebx                         /* swapgs needed? */
         jnz nmi_restore
 nmi_swapgs:
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 3dafc6003b7c..1f5f1d5d2a02 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -294,9 +294,9 @@ void fixup_irqs(void)
                 raw_spin_unlock(&desc->lock);
 
                 if (break_affinity && set_affinity)
-                        printk("Broke affinity for irq %i\n", irq);
+                        pr_notice("Broke affinity for irq %i\n", irq);
                 else if (!set_affinity)
-                        printk("Cannot set affinity for irq %i\n", irq);
+                        pr_notice("Cannot set affinity for irq %i\n", irq);
         }
 
         /*
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index fbdfc6917180..4873e62db6a1 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -87,6 +87,7 @@
 #include <asm/microcode.h>
 #include <asm/processor.h>
 #include <asm/cpu_device_id.h>
+#include <asm/perf_event.h>
 
 MODULE_DESCRIPTION("Microcode Update Driver");
 MODULE_AUTHOR("Tigran Aivazian <tigran@aivazian.fsnet.co.uk>");
@@ -277,7 +278,6 @@ static int reload_for_cpu(int cpu)
         struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
         int err = 0;
 
-        mutex_lock(&microcode_mutex);
         if (uci->valid) {
                 enum ucode_state ustate;
 
@@ -288,7 +288,6 @@ static int reload_for_cpu(int cpu)
                         if (ustate == UCODE_ERROR)
                                 err = -EINVAL;
         }
-        mutex_unlock(&microcode_mutex);
 
         return err;
 }
@@ -298,19 +297,31 @@ static ssize_t reload_store(struct device *dev,
                             const char *buf, size_t size)
 {
         unsigned long val;
-        int cpu = dev->id;
-        ssize_t ret = 0;
+        int cpu;
+        ssize_t ret = 0, tmp_ret;
 
         ret = kstrtoul(buf, 0, &val);
         if (ret)
                 return ret;
 
-        if (val == 1) {
-                get_online_cpus();
-                if (cpu_online(cpu))
-                        ret = reload_for_cpu(cpu);
-                put_online_cpus();
+        if (val != 1)
+                return size;
+
+        get_online_cpus();
+        mutex_lock(&microcode_mutex);
+        for_each_online_cpu(cpu) {
+                tmp_ret = reload_for_cpu(cpu);
+                if (tmp_ret != 0)
+                        pr_warn("Error reloading microcode on CPU %d\n", cpu);
+
+                /* save retval of the first encountered reload error */
+                if (!ret)
+                        ret = tmp_ret;
         }
+        if (!ret)
+                perf_check_microcode();
+        mutex_unlock(&microcode_mutex);
+        put_online_cpus();
 
         if (!ret)
                 ret = size;
@@ -339,7 +350,6 @@ static DEVICE_ATTR(version, 0400, version_show, NULL);
 static DEVICE_ATTR(processor_flags, 0400, pf_show, NULL);
 
 static struct attribute *mc_default_attrs[] = {
-        &dev_attr_reload.attr,
         &dev_attr_version.attr,
         &dev_attr_processor_flags.attr,
         NULL
@@ -504,7 +514,7 @@ static struct notifier_block __refdata mc_cpu_notifier = {
 
 #ifdef MODULE
 /* Autoload on Intel and AMD systems */
-static const struct x86_cpu_id microcode_id[] = {
+static const struct x86_cpu_id __initconst microcode_id[] = {
 #ifdef CONFIG_MICROCODE_INTEL
         { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, },
 #endif
@@ -516,6 +526,16 @@ static const struct x86_cpu_id microcode_id[] = {
 MODULE_DEVICE_TABLE(x86cpu, microcode_id);
 #endif
 
+static struct attribute *cpu_root_microcode_attrs[] = {
+        &dev_attr_reload.attr,
+        NULL
+};
+
+static struct attribute_group cpu_root_microcode_group = {
+        .name  = "microcode",
+        .attrs = cpu_root_microcode_attrs,
+};
+
 static int __init microcode_init(void)
 {
         struct cpuinfo_x86 *c = &cpu_data(0);
@@ -540,16 +560,25 @@ static int __init microcode_init(void)
         mutex_lock(&microcode_mutex);
 
         error = subsys_interface_register(&mc_cpu_interface);
-
+        if (!error)
+                perf_check_microcode();
         mutex_unlock(&microcode_mutex);
         put_online_cpus();
 
         if (error)
                 goto out_pdev;
 
+        error = sysfs_create_group(&cpu_subsys.dev_root->kobj,
+                                   &cpu_root_microcode_group);
+
+        if (error) {
+                pr_err("Error creating microcode group!\n");
+                goto out_driver;
+        }
+
         error = microcode_dev_init();
         if (error)
-                goto out_driver;
+                goto out_ucode_group;
 
         register_syscore_ops(&mc_syscore_ops);
         register_hotcpu_notifier(&mc_cpu_notifier);
@@ -559,7 +588,11 @@ static int __init microcode_init(void)
 
         return 0;
 
-out_driver:
+ out_ucode_group:
+        sysfs_remove_group(&cpu_subsys.dev_root->kobj,
+                           &cpu_root_microcode_group);
+
+ out_driver:
         get_online_cpus();
         mutex_lock(&microcode_mutex);
 
@@ -568,7 +601,7 @@ out_driver:
         mutex_unlock(&microcode_mutex);
         put_online_cpus();
 
-out_pdev:
+ out_pdev:
         platform_device_unregister(microcode_pdev);
         return error;
 
@@ -584,6 +617,9 @@ static void __exit microcode_exit(void)
         unregister_hotcpu_notifier(&mc_cpu_notifier);
         unregister_syscore_ops(&mc_syscore_ops);
 
+        sysfs_remove_group(&cpu_subsys.dev_root->kobj,
+                           &cpu_root_microcode_group);
+
         get_online_cpus();
         mutex_lock(&microcode_mutex);
 
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index f21fd94ac897..202494d2ec6e 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -15,6 +15,9 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/moduleloader.h>
 #include <linux/elf.h>
 #include <linux/vmalloc.h>
@@ -30,9 +33,14 @@
 #include <asm/pgtable.h>
 
 #if 0
-#define DEBUGP printk
+#define DEBUGP(fmt, ...)                                \
+        printk(KERN_DEBUG fmt, ##__VA_ARGS__)
 #else
-#define DEBUGP(fmt...)
+#define DEBUGP(fmt, ...)                                \
+do {                                                    \
+        if (0)                                          \
+                printk(KERN_DEBUG fmt, ##__VA_ARGS__);  \
+} while (0)
 #endif
 
 void *module_alloc(unsigned long size)
@@ -56,8 +64,8 @@ int apply_relocate(Elf32_Shdr *sechdrs,
         Elf32_Sym *sym;
         uint32_t *location;
 
-        DEBUGP("Applying relocate section %u to %u\n", relsec,
-               sechdrs[relsec].sh_info);
+        DEBUGP("Applying relocate section %u to %u\n",
+               relsec, sechdrs[relsec].sh_info);
         for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
                 /* This is where to make the change */
                 location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
@@ -77,7 +85,7 @@ int apply_relocate(Elf32_Shdr *sechdrs,
                         *location += sym->st_value - (uint32_t)location;
                         break;
                 default:
-                        printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+                        pr_err("%s: Unknown relocation: %u\n",
                                me->name, ELF32_R_TYPE(rel[i].r_info));
                         return -ENOEXEC;
                 }
@@ -97,8 +105,8 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
         void *loc;
         u64 val;
 
-        DEBUGP("Applying relocate section %u to %u\n", relsec,
-               sechdrs[relsec].sh_info);
+        DEBUGP("Applying relocate section %u to %u\n",
+               relsec, sechdrs[relsec].sh_info);
         for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
                 /* This is where to make the change */
                 loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
@@ -110,8 +118,8 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
                         + ELF64_R_SYM(rel[i].r_info);
 
                 DEBUGP("type %d st_value %Lx r_addend %Lx loc %Lx\n",
-                        (int)ELF64_R_TYPE(rel[i].r_info),
-                        sym->st_value, rel[i].r_addend, (u64)loc);
+                       (int)ELF64_R_TYPE(rel[i].r_info),
+                       sym->st_value, rel[i].r_addend, (u64)loc);
 
                 val = sym->st_value + rel[i].r_addend;
 
@@ -140,7 +148,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 #endif
                         break;
                 default:
-                        printk(KERN_ERR "module %s: Unknown rela relocation: %llu\n",
+                        pr_err("%s: Unknown rela relocation: %llu\n",
                                me->name, ELF64_R_TYPE(rel[i].r_info));
                         return -ENOEXEC;
                 }
@@ -148,9 +156,9 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
         return 0;
 
 overflow:
-        printk(KERN_ERR "overflow in relocation type %d val %Lx\n",
+        pr_err("overflow in relocation type %d val %Lx\n",
                (int)ELF64_R_TYPE(rel[i].r_info), val);
-        printk(KERN_ERR "`%s' likely not compiled with -mcmodel=kernel\n",
+        pr_err("`%s' likely not compiled with -mcmodel=kernel\n",
                me->name);
         return -ENOEXEC;
 }
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index a0b2f84457be..f84f5c57de35 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -365,8 +365,9 @@ static __kprobes void default_do_nmi(struct pt_regs *regs)
 #ifdef CONFIG_X86_32
 /*
  * For i386, NMIs use the same stack as the kernel, and we can
- * add a workaround to the iret problem in C. Simply have 3 states
- * the NMI can be in.
+ * add a workaround to the iret problem in C (preventing nested
+ * NMIs if an NMI takes a trap). Simply have 3 states the NMI
+ * can be in:
  *
  *  1) not running
  *  2) executing
@@ -383,32 +384,50 @@ static __kprobes void default_do_nmi(struct pt_regs *regs)
  * If an NMI hits a breakpoint that executes an iret, another
  * NMI can preempt it. We do not want to allow this new NMI
  * to run, but we want to execute it when the first one finishes.
- * We set the state to "latched", and the first NMI will perform
- * an cmpxchg on the state, and if it doesn't successfully
- * reset the state to "not running" it will restart the next
- * NMI.
+ * We set the state to "latched", and the exit of the first NMI will
+ * perform a dec_return, if the result is zero (NOT_RUNNING), then
+ * it will simply exit the NMI handler. If not, the dec_return
+ * would have set the state to NMI_EXECUTING (what we want it to
+ * be when we are running). In this case, we simply jump back
+ * to rerun the NMI handler again, and restart the 'latched' NMI.
+ *
+ * No trap (breakpoint or page fault) should be hit before nmi_restart,
+ * thus there is no race between the first check of state for NOT_RUNNING
+ * and setting it to NMI_EXECUTING. The HW will prevent nested NMIs
+ * at this point.
+ *
+ * In case the NMI takes a page fault, we need to save off the CR2
+ * because the NMI could have preempted another page fault and corrupt
+ * the CR2 that is about to be read. As nested NMIs must be restarted
+ * and they can not take breakpoints or page faults, the update of the
+ * CR2 must be done before converting the nmi state back to NOT_RUNNING.
+ * Otherwise, there would be a race of another nested NMI coming in
+ * after setting state to NOT_RUNNING but before updating the nmi_cr2.
  */
 enum nmi_states {
-        NMI_NOT_RUNNING,
+        NMI_NOT_RUNNING = 0,
         NMI_EXECUTING,
         NMI_LATCHED,
 };
 static DEFINE_PER_CPU(enum nmi_states, nmi_state);
+static DEFINE_PER_CPU(unsigned long, nmi_cr2);
 
 #define nmi_nesting_preprocess(regs)                                    \
         do {                                                            \
-                if (__get_cpu_var(nmi_state) != NMI_NOT_RUNNING) {      \
-                        __get_cpu_var(nmi_state) = NMI_LATCHED;         \
+                if (this_cpu_read(nmi_state) != NMI_NOT_RUNNING) {      \
+                        this_cpu_write(nmi_state, NMI_LATCHED);         \
                         return;                                         \
                 }                                                       \
-        nmi_restart:                                                    \
-                __get_cpu_var(nmi_state) = NMI_EXECUTING;               \
-        } while (0)
+                this_cpu_write(nmi_state, NMI_EXECUTING);               \
+                this_cpu_write(nmi_cr2, read_cr2());                    \
+        } while (0);                                                    \
+        nmi_restart:
 
 #define nmi_nesting_postprocess()                                       \
         do {                                                            \
-                if (cmpxchg(&__get_cpu_var(nmi_state),                  \
-                    NMI_EXECUTING, NMI_NOT_RUNNING) != NMI_EXECUTING)   \
+                if (unlikely(this_cpu_read(nmi_cr2) != read_cr2()))     \
+                        write_cr2(this_cpu_read(nmi_cr2));              \
+                if (this_cpu_dec_return(nmi_state))                     \
                         goto nmi_restart;                               \
         } while (0)
 #else /* x86_64 */
diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
index 149b8d9c6ad4..6d9582ec0324 100644
--- a/arch/x86/kernel/nmi_selftest.c
+++ b/arch/x86/kernel/nmi_selftest.c
@@ -42,7 +42,8 @@ static int __init nmi_unk_cb(unsigned int val, struct pt_regs *regs)
 static void __init init_nmi_testsuite(void)
 {
         /* trap all the unknown NMIs we may generate */
-        register_nmi_handler_initonly(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk");
+        register_nmi_handler(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk",
+                        __initdata);
 }
 
 static void __init cleanup_nmi_testsuite(void)
@@ -64,8 +65,8 @@ static void __init test_nmi_ipi(struct cpumask *mask)
 {
         unsigned long timeout;
 
-        if (register_nmi_handler_initonly(NMI_LOCAL, test_nmi_ipi_callback,
-                                 NMI_FLAG_FIRST, "nmi_selftest")) {
+        if (register_nmi_handler(NMI_LOCAL, test_nmi_ipi_callback,
+                                 NMI_FLAG_FIRST, "nmi_selftest", __initdata)) {
                 nmi_fail = FAILURE;
                 return;
         }
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 9ce885996fd7..17fff18a1031 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -352,9 +352,7 @@ struct pv_cpu_ops pv_cpu_ops = {
 #endif
         .wbinvd = native_wbinvd,
         .read_msr = native_read_msr_safe,
-        .rdmsr_regs = native_rdmsr_safe_regs,
         .write_msr = native_write_msr_safe,
-        .wrmsr_regs = native_wrmsr_safe_regs,
         .read_tsc = native_read_tsc,
         .read_pmc = native_read_pmc,
         .read_tscp = native_read_tscp,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index b72838bae64a..299d49302e7d 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -22,6 +22,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#define pr_fmt(fmt) "Calgary: " fmt
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -245,7 +247,7 @@ static unsigned long iommu_range_alloc(struct device *dev,
                 offset = iommu_area_alloc(tbl->it_map, tbl->it_size, 0,
                                           npages, 0, boundary_size, 0);
                 if (offset == ~0UL) {
-                        printk(KERN_WARNING "Calgary: IOMMU full.\n");
+                        pr_warn("IOMMU full\n");
                         spin_unlock_irqrestore(&tbl->it_lock, flags);
                         if (panic_on_overflow)
                                 panic("Calgary: fix the allocator.\n");
@@ -271,8 +273,8 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl,
         entry = iommu_range_alloc(dev, tbl, npages);
 
         if (unlikely(entry == DMA_ERROR_CODE)) {
-                printk(KERN_WARNING "Calgary: failed to allocate %u pages in "
-                       "iommu %p\n", npages, tbl);
+                pr_warn("failed to allocate %u pages in iommu %p\n",
+                        npages, tbl);
                 return DMA_ERROR_CODE;
         }
 
@@ -561,8 +563,7 @@ static void calgary_tce_cache_blast(struct iommu_table *tbl)
                 i++;
         } while ((val & 0xff) != 0xff && i < 100);
         if (i == 100)
-                printk(KERN_WARNING "Calgary: PCI bus not quiesced, "
-                       "continuing anyway\n");
+                pr_warn("PCI bus not quiesced, continuing anyway\n");
 
         /* invalidate TCE cache */
         target = calgary_reg(bbar, tar_offset(tbl->it_busno));
@@ -604,8 +605,7 @@ begin:
                 i++;
         } while ((val64 & 0xff) != 0xff && i < 100);
         if (i == 100)
-                printk(KERN_WARNING "CalIOC2: PCI bus not quiesced, "
-                       "continuing anyway\n");
+                pr_warn("CalIOC2: PCI bus not quiesced, continuing anyway\n");
 
         /* 3. poll Page Migration DEBUG for SoftStopFault */
         target = calgary_reg(bbar, phb_offset(bus) | PHB_PAGE_MIG_DEBUG);
@@ -617,8 +617,7 @@ begin:
                 if (++count < 100)
                         goto begin;
                 else {
-                        printk(KERN_WARNING "CalIOC2: too many SoftStopFaults, "
-                               "aborting TCE cache flush sequence!\n");
+                        pr_warn("CalIOC2: too many SoftStopFaults, aborting TCE cache flush sequence!\n");
                         return; /* pray for the best */
                 }
         }
@@ -840,8 +839,8 @@ static void calgary_dump_error_regs(struct iommu_table *tbl)
         plssr = be32_to_cpu(readl(target));
 
         /* If no error, the agent ID in the CSR is not valid */
-        printk(KERN_EMERG "Calgary: DMA error on Calgary PHB 0x%x, "
-               "0x%08x@CSR 0x%08x@PLSSR\n", tbl->it_busno, csr, plssr);
+        pr_emerg("DMA error on Calgary PHB 0x%x, 0x%08x@CSR 0x%08x@PLSSR\n",
+                 tbl->it_busno, csr, plssr);
 }
 
 static void calioc2_dump_error_regs(struct iommu_table *tbl)
@@ -867,22 +866,21 @@ static void calioc2_dump_error_regs(struct iommu_table *tbl)
         target = calgary_reg(bbar, phboff | 0x800);
         mck = be32_to_cpu(readl(target));
 
-        printk(KERN_EMERG "Calgary: DMA error on CalIOC2 PHB 0x%x\n",
-               tbl->it_busno);
+        pr_emerg("DMA error on CalIOC2 PHB 0x%x\n", tbl->it_busno);
 
-        printk(KERN_EMERG "Calgary: 0x%08x@CSR 0x%08x@PLSSR 0x%08x@CSMR 0x%08x@MCK\n",
-               csr, plssr, csmr, mck);
+        pr_emerg("0x%08x@CSR 0x%08x@PLSSR 0x%08x@CSMR 0x%08x@MCK\n",
+                 csr, plssr, csmr, mck);
 
         /* dump rest of error regs */
-        printk(KERN_EMERG "Calgary: ");
+        pr_emerg("");
         for (i = 0; i < ARRAY_SIZE(errregs); i++) {
                 /* err regs are at 0x810 - 0x870 */
                 erroff = (0x810 + (i * 0x10));
                 target = calgary_reg(bbar, phboff | erroff);
                 errregs[i] = be32_to_cpu(readl(target));
-                printk("0x%08x@0x%lx ", errregs[i], erroff);
+                pr_cont("0x%08x@0x%lx ", errregs[i], erroff);
         }
-        printk("\n");
+        pr_cont("\n");
 
         /* root complex status */
         target = calgary_reg(bbar, phboff | PHB_ROOT_COMPLEX_STATUS);
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 735279e54e59..ef6a8456f719 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -1,3 +1,5 @@
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
@@ -145,16 +147,14 @@ void show_regs_common(void)
         /* Board Name is optional */
         board = dmi_get_system_info(DMI_BOARD_NAME);
 
-        printk(KERN_CONT "\n");
-        printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s",
-                current->pid, current->comm, print_tainted(),
-                init_utsname()->release,
-                (int)strcspn(init_utsname()->version, " "),
-                init_utsname()->version);
-        printk(KERN_CONT " %s %s", vendor, product);
-        if (board)
-                printk(KERN_CONT "/%s", board);
-        printk(KERN_CONT "\n");
+        printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s %s %s%s%s\n",
+               current->pid, current->comm, print_tainted(),
+               init_utsname()->release,
+               (int)strcspn(init_utsname()->version, " "),
+               init_utsname()->version,
+               vendor, product,
+               board ? "/" : "",
+               board ? board : "");
 }
 
 void flush_thread(void)
@@ -645,7 +645,7 @@ static void amd_e400_idle(void)
                         amd_e400_c1e_detected = true;
                         if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
                                 mark_tsc_unstable("TSC halt in AMD C1E");
-                        printk(KERN_INFO "System has AMD C1E enabled\n");
+                        pr_info("System has AMD C1E enabled\n");
                 }
         }
 
@@ -659,8 +659,7 @@ static void amd_e400_idle(void)
                          */
                         clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
                                            &cpu);
-                        printk(KERN_INFO "Switch to broadcast mode on CPU%d\n",
-                               cpu);
+                        pr_info("Switch to broadcast mode on CPU%d\n", cpu);
                 }
                 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
 
@@ -681,8 +680,7 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
         if (pm_idle == poll_idle && smp_num_siblings > 1) {
-                printk_once(KERN_WARNING "WARNING: polling idle and HT enabled,"
-                        " performance may degrade.\n");
+                pr_warn_once("WARNING: polling idle and HT enabled, performance may degrade\n");
         }
 #endif
         if (pm_idle)
@@ -692,11 +690,11 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
                 /*
                  * One CPU supports mwait => All CPUs supports mwait
                  */
-                printk(KERN_INFO "using mwait in idle threads.\n");
+                pr_info("using mwait in idle threads\n");
                 pm_idle = mwait_idle;
         } else if (cpu_has_amd_erratum(amd_erratum_400)) {
                 /* E400: APIC timer interrupt does not wake up CPU from C1e */
-                printk(KERN_INFO "using AMD E400 aware idle routine\n");
+                pr_info("using AMD E400 aware idle routine\n");
                 pm_idle = amd_e400_idle;
         } else
                 pm_idle = default_idle;
@@ -715,7 +713,7 @@ static int __init idle_setup(char *str)
                 return -EINVAL;
 
         if (!strcmp(str, "poll")) {
-                printk("using polling idle threads.\n");
+                pr_info("using polling idle threads\n");
                 pm_idle = poll_idle;
                 boot_option_idle_override = IDLE_POLL;
         } else if (!strcmp(str, "mwait")) {
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 61cdf7fdf099..0a980c9d7cb8 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -117,10 +117,10 @@ void release_thread(struct task_struct *dead_task)
 {
         if (dead_task->mm) {
                 if (dead_task->mm->context.size) {
-                        printk("WARNING: dead process %8s still has LDT? <%p/%d>\n",
-                                        dead_task->comm,
-                                        dead_task->mm->context.ldt,
-                                        dead_task->mm->context.size);
+                        pr_warn("WARNING: dead process %8s still has LDT? <%p/%d>\n",
+                                dead_task->comm,
+                                dead_task->mm->context.ldt,
+                                dead_task->mm->context.size);
                         BUG();
                 }
         }
@@ -466,7 +466,7 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
                         task->thread.gs = addr;
                         if (doit) {
                                 load_gs_index(0);
-                                ret = checking_wrmsrl(MSR_KERNEL_GS_BASE, addr);
+                                ret = wrmsrl_safe(MSR_KERNEL_GS_BASE, addr);
                         }
                 }
                 put_cpu();
@@ -494,7 +494,7 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
                                 /* set the selector to 0 to not confuse
                                    __switch_to */
                                 loadsegment(fs, 0);
-                                ret = checking_wrmsrl(MSR_FS_BASE, addr);
+                                ret = wrmsrl_safe(MSR_FS_BASE, addr);
                         }
                 }
                 put_cpu();
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 5de92f1abd76..52190a938b4a 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -1,3 +1,5 @@
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
@@ -20,14 +22,12 @@
 #include <asm/virtext.h>
 #include <asm/cpu.h>
 #include <asm/nmi.h>
+#include <asm/smp.h>
 
-#ifdef CONFIG_X86_32
-# include <linux/ctype.h>
-# include <linux/mc146818rtc.h>
-# include <asm/realmode.h>
-#else
-# include <asm/x86_init.h>
-#endif
+#include <linux/ctype.h>
+#include <linux/mc146818rtc.h>
+#include <asm/realmode.h>
+#include <asm/x86_init.h>
 
 /*
  * Power off function, if any
@@ -49,7 +49,7 @@ int reboot_force;
  */
 static int reboot_default = 1;
 
-#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
+#ifdef CONFIG_SMP
 static int reboot_cpu = -1;
 #endif
 
@@ -67,8 +67,8 @@ bool port_cf9_safe = false;
  * reboot=b[ios] | s[mp] | t[riple] | k[bd] | e[fi] [, [w]arm | [c]old] | p[ci]
  * warm   Don't set the cold reboot flag
  * cold   Set the cold reboot flag
- * bios   Reboot by jumping through the BIOS (only for X86_32)
- * smp    Reboot by executing reset on BSP or other CPU (only for X86_32)
+ * bios   Reboot by jumping through the BIOS
+ * smp    Reboot by executing reset on BSP or other CPU
  * triple Force a triple fault (init)
  * kbd    Use the keyboard controller. cold reset (default)
  * acpi   Use the RESET_REG in the FADT
@@ -95,7 +95,6 @@ static int __init reboot_setup(char *str)
                         reboot_mode = 0;
                         break;
 
-#ifdef CONFIG_X86_32
 #ifdef CONFIG_SMP
                 case 's':
                         if (isdigit(*(str+1))) {
@@ -112,7 +111,6 @@ static int __init reboot_setup(char *str)
 #endif /* CONFIG_SMP */
 
                 case 'b':
-#endif
                 case 'a':
                 case 'k':
                 case 't':
@@ -138,7 +136,6 @@ static int __init reboot_setup(char *str)
 __setup("reboot=", reboot_setup);
 
 
-#ifdef CONFIG_X86_32
 /*
  * Reboot options and system auto-detection code provided by
  * Dell Inc. so their systems "just work". :-)
@@ -152,16 +149,14 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
 {
         if (reboot_type != BOOT_BIOS) {
                 reboot_type = BOOT_BIOS;
-                printk(KERN_INFO "%s series board detected. Selecting BIOS-method for reboots.\n", d->ident);
+                pr_info("%s series board detected. Selecting %s-method for reboots.\n",
+                        "BIOS", d->ident);
         }
         return 0;
 }
 
-void machine_real_restart(unsigned int type)
+void __noreturn machine_real_restart(unsigned int type)
 {
-        void (*restart_lowmem)(unsigned int) = (void (*)(unsigned int))
-                real_mode_header->machine_real_restart_asm;
-
         local_irq_disable();
 
         /*
@@ -181,25 +176,28 @@ void machine_real_restart(unsigned int type)
         /*
          * Switch back to the initial page table.
          */
+#ifdef CONFIG_X86_32
         load_cr3(initial_page_table);
-
-        /*
-         * Write 0x1234 to absolute memory location 0x472.  The BIOS reads
-         * this on booting to tell it to "Bypass memory test (also warm
-         * boot)".  This seems like a fairly standard thing that gets set by
-         * REBOOT.COM programs, and the previous reset routine did this
-         * too. */
-        *((unsigned short *)0x472) = reboot_mode;
+#else
+        write_cr3(real_mode_header->trampoline_pgd);
+#endif
 
         /* Jump to the identity-mapped low memory code */
-        restart_lowmem(type);
+#ifdef CONFIG_X86_32
+        asm volatile("jmpl *%0" : :
+                     "rm" (real_mode_header->machine_real_restart_asm),
+                     "a" (type));
+#else
+        asm volatile("ljmpl *%0" : :
+                     "m" (real_mode_header->machine_real_restart_asm),
+                     "D" (type));
+#endif
+        unreachable();
 }
 #ifdef CONFIG_APM_MODULE
 EXPORT_SYMBOL(machine_real_restart);
 #endif
 
-#endif /* CONFIG_X86_32 */
-
 /*
  * Some Apple MacBook and MacBookPro's needs reboot=p to be able to reboot
  */
@@ -207,8 +205,8 @@ static int __init set_pci_reboot(const struct dmi_system_id *d)
 {
         if (reboot_type != BOOT_CF9) {
                 reboot_type = BOOT_CF9;
-                printk(KERN_INFO "%s series board detected. "
-                       "Selecting PCI-method for reboots.\n", d->ident);
+                pr_info("%s series board detected. Selecting %s-method for reboots.\n",
+                        "PCI", d->ident);
         }
         return 0;
 }
@@ -217,17 +215,16 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
 {
         if (reboot_type != BOOT_KBD) {
                 reboot_type = BOOT_KBD;
-                printk(KERN_INFO "%s series board detected. Selecting KBD-method for reboot.\n", d->ident);
+                pr_info("%s series board detected. Selecting %s-method for reboot.\n",
+                        "KBD", d->ident);
         }
         return 0;
 }
 
 /*
- * This is a single dmi_table handling all reboot quirks.  Note that
- * REBOOT_BIOS is only available for 32bit
+ * This is a single dmi_table handling all reboot quirks.
  */
 static struct dmi_system_id __initdata reboot_dmi_table[] = {
-#ifdef CONFIG_X86_32
         {       /* Handle problems with rebooting on Dell E520's */
                 .callback = set_bios_reboot,
                 .ident = "Dell E520",
@@ -377,7 +374,6 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
                         DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
                 },
         },
-#endif /* CONFIG_X86_32 */
 
         {       /* Handle reboot issue on Acer Aspire one */
                 .callback = set_kbd_reboot,
@@ -584,13 +580,11 @@ static void native_machine_emergency_restart(void)
                         reboot_type = BOOT_KBD;
                         break;
 
-#ifdef CONFIG_X86_32
                 case BOOT_BIOS:
                         machine_real_restart(MRR_BIOS);
 
                         reboot_type = BOOT_KBD;
                         break;
-#endif
 
                 case BOOT_ACPI:
                         acpi_reboot();
@@ -632,12 +626,10 @@ void native_machine_shutdown(void)
         /* The boot cpu is always logical cpu 0 */
         int reboot_cpu_id = 0;
 
-#ifdef CONFIG_X86_32
         /* See if there has been given a command line override */
         if ((reboot_cpu != -1) && (reboot_cpu < nr_cpu_ids) &&
                 cpu_online(reboot_cpu))
                 reboot_cpu_id = reboot_cpu;
-#endif
 
         /* Make certain the cpu I'm about to reboot on is online */
         if (!cpu_online(reboot_cpu_id))
@@ -678,7 +670,7 @@ static void __machine_emergency_restart(int emergency)
 
 static void native_machine_restart(char *__unused)
 {
-        printk("machine restart\n");
+        pr_notice("machine restart\n");
 
         if (!reboot_force)
                 machine_shutdown();
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 16be6dc14db1..f4b9b80e1b95 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1031,8 +1031,6 @@ void __init setup_arch(char **cmdline_p)
 
         x86_init.timers.wallclock_init();
 
-        x86_platform.wallclock_init();
-
         mcheck_init();
 
         arch_init_ideal_nops();
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 21af737053aa..b280908a376e 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -6,6 +6,9 @@
  *  2000-06-20  Pentium III FXSR, SSE support by Gareth Hughes
  *  2000-2002   x86-64 support by Andi Kleen
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
@@ -814,7 +817,7 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
                        me->comm, me->pid, where, frame,
                        regs->ip, regs->sp, regs->orig_ax);
                 print_vma_addr(" in ", regs->ip);
-                printk(KERN_CONT "\n");
+                pr_cont("\n");
         }
 
         force_sig(SIGSEGV, me);
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 7bd8a0823654..c1a310fb8309 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1,4 +1,4 @@
-/*
+ /*
  *      x86 SMP booting functions
  *
  *      (c) 1995 Alan Cox, Building #3 <alan@lxorguk.ukuu.org.uk>
@@ -39,6 +39,8 @@
  *      Glauber Costa           :       i386 and x86_64 integration
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/module.h>
@@ -184,7 +186,7 @@ static void __cpuinit smp_callin(void)
          * boards)
          */
 
-        pr_debug("CALLIN, before setup_local_APIC().\n");
+        pr_debug("CALLIN, before setup_local_APIC()\n");
         if (apic->smp_callin_clear_local_apic)
                 apic->smp_callin_clear_local_apic();
         setup_local_APIC();
@@ -255,22 +257,13 @@ notrace static void __cpuinit start_secondary(void *unused)
         check_tsc_sync_target();
 
         /*
-         * We need to hold call_lock, so there is no inconsistency
-         * between the time smp_call_function() determines number of
-         * IPI recipients, and the time when the determination is made
-         * for which cpus receive the IPI. Holding this
-         * lock helps us to not include this cpu in a currently in progress
-         * smp_call_function().
-         *
          * We need to hold vector_lock so there the set of online cpus
          * does not change while we are assigning vectors to cpus.  Holding
          * this lock ensures we don't half assign or remove an irq from a cpu.
          */
-        ipi_call_lock();
         lock_vector_lock();
         set_cpu_online(smp_processor_id(), true);
         unlock_vector_lock();
-        ipi_call_unlock();
         per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
         x86_platform.nmi_init();
 
@@ -432,17 +425,16 @@ static void impress_friends(void)
         /*
          * Allow the user to impress friends.
          */
-        pr_debug("Before bogomips.\n");
+        pr_debug("Before bogomips\n");
         for_each_possible_cpu(cpu)
                 if (cpumask_test_cpu(cpu, cpu_callout_mask))
                         bogosum += cpu_data(cpu).loops_per_jiffy;
-        printk(KERN_INFO
-                "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
+        pr_info("Total of %d processors activated (%lu.%02lu BogoMIPS)\n",
                 num_online_cpus(),
                 bogosum/(500000/HZ),
                 (bogosum/(5000/HZ))%100);
 
-        pr_debug("Before bogocount - setting activated=1.\n");
+        pr_debug("Before bogocount - setting activated=1\n");
 }
 
 void __inquire_remote_apic(int apicid)
@@ -452,18 +444,17 @@ void __inquire_remote_apic(int apicid)
         int timeout;
         u32 status;
 
-        printk(KERN_INFO "Inquiring remote APIC 0x%x...\n", apicid);
+        pr_info("Inquiring remote APIC 0x%x...\n", apicid);
 
         for (i = 0; i < ARRAY_SIZE(regs); i++) {
-                printk(KERN_INFO "... APIC 0x%x %s: ", apicid, names[i]);
+                pr_info("... APIC 0x%x %s: ", apicid, names[i]);
 
                 /*
                  * Wait for idle.
                  */
                 status = safe_apic_wait_icr_idle();
                 if (status)
-                        printk(KERN_CONT
-                               "a previous APIC delivery may have failed\n");
+                        pr_cont("a previous APIC delivery may have failed\n");
 
                 apic_icr_write(APIC_DM_REMRD | regs[i], apicid);
 
@@ -476,10 +467,10 @@ void __inquire_remote_apic(int apicid)
                 switch (status) {
                 case APIC_ICR_RR_VALID:
                         status = apic_read(APIC_RRR);
-                        printk(KERN_CONT "%08x\n", status);
+                        pr_cont("%08x\n", status);
                         break;
                 default:
-                        printk(KERN_CONT "failed\n");
+                        pr_cont("failed\n");
                 }
         }
 }
@@ -513,12 +504,12 @@ wakeup_secondary_cpu_via_nmi(int logical_apicid, unsigned long start_eip)
                         apic_write(APIC_ESR, 0);
                 accept_status = (apic_read(APIC_ESR) & 0xEF);
         }
-        pr_debug("NMI sent.\n");
+        pr_debug("NMI sent\n");
 
         if (send_status)
-                printk(KERN_ERR "APIC never delivered???\n");
+                pr_err("APIC never delivered???\n");
         if (accept_status)
-                printk(KERN_ERR "APIC delivery error (%lx).\n", accept_status);
+                pr_err("APIC delivery error (%lx)\n", accept_status);
 
         return (send_status | accept_status);
 }
@@ -540,7 +531,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
                 apic_read(APIC_ESR);
         }
 
-        pr_debug("Asserting INIT.\n");
+        pr_debug("Asserting INIT\n");
 
         /*
          * Turn INIT on target chip
@@ -556,7 +547,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 
         mdelay(10);
 
-        pr_debug("Deasserting INIT.\n");
+        pr_debug("Deasserting INIT\n");
 
         /* Target chip */
         /* Send IPI */
@@ -589,14 +580,14 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
         /*
          * Run STARTUP IPI loop.
          */
-        pr_debug("#startup loops: %d.\n", num_starts);
+        pr_debug("#startup loops: %d\n", num_starts);
 
         for (j = 1; j <= num_starts; j++) {
-                pr_debug("Sending STARTUP #%d.\n", j);
+                pr_debug("Sending STARTUP #%d\n", j);
                 if (maxlvt > 3)         /* Due to the Pentium erratum 3AP.  */
                         apic_write(APIC_ESR, 0);
                 apic_read(APIC_ESR);
-                pr_debug("After apic_write.\n");
+                pr_debug("After apic_write\n");
 
                 /*
                  * STARTUP IPI
@@ -613,7 +604,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
                  */
                 udelay(300);
 
-                pr_debug("Startup point 1.\n");
+                pr_debug("Startup point 1\n");
 
                 pr_debug("Waiting for send to finish...\n");
                 send_status = safe_apic_wait_icr_idle();
@@ -628,12 +619,12 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
                 if (send_status || accept_status)
                         break;
         }
-        pr_debug("After Startup.\n");
+        pr_debug("After Startup\n");
 
         if (send_status)
-                printk(KERN_ERR "APIC never delivered???\n");
+                pr_err("APIC never delivered???\n");
         if (accept_status)
-                printk(KERN_ERR "APIC delivery error (%lx).\n", accept_status);
+                pr_err("APIC delivery error (%lx)\n", accept_status);
 
         return (send_status | accept_status);
 }
@@ -647,11 +638,11 @@ static void __cpuinit announce_cpu(int cpu, int apicid)
         if (system_state == SYSTEM_BOOTING) {
                 if (node != current_node) {
                         if (current_node > (-1))
-                                pr_cont(" Ok.\n");
+                                pr_cont(" OK\n");
                         current_node = node;
                         pr_info("Booting Node %3d, Processors ", node);
                 }
-                pr_cont(" #%d%s", cpu, cpu == (nr_cpu_ids - 1) ? " Ok.\n" : "");
+                pr_cont(" #%d%s", cpu, cpu == (nr_cpu_ids - 1) ? " OK\n" : "");
                 return;
         } else
                 pr_info("Booting Node %d Processor %d APIC 0x%x\n",
@@ -731,9 +722,9 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
                 /*
                  * allow APs to start initializing.
                  */
-                pr_debug("Before Callout %d.\n", cpu);
+                pr_debug("Before Callout %d\n", cpu);
                 cpumask_set_cpu(cpu, cpu_callout_mask);
-                pr_debug("After Callout %d.\n", cpu);
+                pr_debug("After Callout %d\n", cpu);
 
                 /*
                  * Wait 5s total for a response
@@ -761,7 +752,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
                                 pr_err("CPU%d: Stuck ??\n", cpu);
                         else
                                 /* trampoline code not run */
-                                pr_err("CPU%d: Not responding.\n", cpu);
+                                pr_err("CPU%d: Not responding\n", cpu);
                         if (apic->inquire_remote_apic)
                                 apic->inquire_remote_apic(apicid);
                 }
@@ -806,7 +797,7 @@ int __cpuinit native_cpu_up(unsigned int cpu, struct task_struct *tidle)
         if (apicid == BAD_APICID || apicid == boot_cpu_physical_apicid ||
             !physid_isset(apicid, phys_cpu_present_map) ||
             !apic->apic_id_valid(apicid)) {
-                printk(KERN_ERR "%s: bad cpu %d\n", __func__, cpu);
+                pr_err("%s: bad cpu %d\n", __func__, cpu);
                 return -EINVAL;
         }
 
@@ -887,9 +878,8 @@ static int __init smp_sanity_check(unsigned max_cpus)
                 unsigned int cpu;
                 unsigned nr;
 
-                printk(KERN_WARNING
-                       "More than 8 CPUs detected - skipping them.\n"
-                       "Use CONFIG_X86_BIGSMP.\n");
+                pr_warn("More than 8 CPUs detected - skipping them\n"
+                        "Use CONFIG_X86_BIGSMP\n");
 
                 nr = 0;
                 for_each_present_cpu(cpu) {
@@ -910,8 +900,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
 #endif
 
         if (!physid_isset(hard_smp_processor_id(), phys_cpu_present_map)) {
-                printk(KERN_WARNING
-                        "weird, boot CPU (#%d) not listed by the BIOS.\n",
+                pr_warn("weird, boot CPU (#%d) not listed by the BIOS\n",
                         hard_smp_processor_id());
 
                 physid_set(hard_smp_processor_id(), phys_cpu_present_map);
@@ -923,11 +912,10 @@ static int __init smp_sanity_check(unsigned max_cpus)
          */
         if (!smp_found_config && !acpi_lapic) {
                 preempt_enable();
-                printk(KERN_NOTICE "SMP motherboard not detected.\n");
+                pr_notice("SMP motherboard not detected\n");
                 disable_smp();
                 if (APIC_init_uniprocessor())
-                        printk(KERN_NOTICE "Local APIC not detected."
-                                           " Using dummy APIC emulation.\n");
+                        pr_notice("Local APIC not detected. Using dummy APIC emulation.\n");
                 return -1;
         }
 
@@ -936,9 +924,8 @@ static int __init smp_sanity_check(unsigned max_cpus)
          * CPU too, but we do it for the sake of robustness anyway.
          */
         if (!apic->check_phys_apicid_present(boot_cpu_physical_apicid)) {
-                printk(KERN_NOTICE
-                        "weird, boot CPU (#%d) not listed by the BIOS.\n",
-                        boot_cpu_physical_apicid);
+                pr_notice("weird, boot CPU (#%d) not listed by the BIOS\n",
+                          boot_cpu_physical_apicid);
                 physid_set(hard_smp_processor_id(), phys_cpu_present_map);
         }
         preempt_enable();
@@ -951,8 +938,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
                 if (!disable_apic) {
                         pr_err("BIOS bug, local APIC #%d not detected!...\n",
                                 boot_cpu_physical_apicid);
-                        pr_err("... forcing use of dummy APIC emulation."
-                                "(tell your hw vendor)\n");
+                        pr_err("... forcing use of dummy APIC emulation (tell your hw vendor)\n");
                 }
                 smpboot_clear_io_apic();
                 disable_ioapic_support();
@@ -965,7 +951,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
          * If SMP should be disabled, then really disable it!
          */
         if (!max_cpus) {
-                printk(KERN_INFO "SMP mode deactivated.\n");
+                pr_info("SMP mode deactivated\n");
                 smpboot_clear_io_apic();
 
                 connect_bsp_APIC();
@@ -1017,7 +1003,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
 
 
         if (smp_sanity_check(max_cpus) < 0) {
-                printk(KERN_INFO "SMP disabled\n");
+                pr_info("SMP disabled\n");
                 disable_smp();
                 goto out;
         }
@@ -1055,7 +1041,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
          * Set up local APIC timer on boot CPU.
          */
 
-        printk(KERN_INFO "CPU%d: ", 0);
+        pr_info("CPU%d: ", 0);
         print_cpu_info(&cpu_data(0));
         x86_init.timers.setup_percpu_clockev();
 
@@ -1105,7 +1091,7 @@ void __init native_smp_prepare_boot_cpu(void)
 
 void __init native_smp_cpus_done(unsigned int max_cpus)
 {
-        pr_debug("Boot done.\n");
+        pr_debug("Boot done\n");
 
         nmi_selftest();
         impress_friends();
@@ -1166,8 +1152,7 @@ __init void prefill_possible_map(void)
 
         /* nr_cpu_ids could be reduced via nr_cpus= */
         if (possible > nr_cpu_ids) {
-                printk(KERN_WARNING
-                        "%d Processors exceeds NR_CPUS limit of %d\n",
+                pr_warn("%d Processors exceeds NR_CPUS limit of %d\n",
                         possible, nr_cpu_ids);
                 possible = nr_cpu_ids;
         }
@@ -1176,13 +1161,12 @@ __init void prefill_possible_map(void)
         if (!setup_max_cpus)
 #endif
         if (possible > i) {
-                printk(KERN_WARNING
-                        "%d Processors exceeds max_cpus limit of %u\n",
+                pr_warn("%d Processors exceeds max_cpus limit of %u\n",
                         possible, setup_max_cpus);
                 possible = i;
         }
 
-        printk(KERN_INFO "SMP: Allowing %d CPUs, %d hotplug CPUs\n",
+        pr_info("Allowing %d CPUs, %d hotplug CPUs\n",
                 possible, max_t(int, possible - num_processors, 0));
 
         for (i = 0; i < possible; i++)
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 05b31d92f69c..b481341c9369 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -9,6 +9,9 @@
 /*
  * Handle hardware traps and faults.
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/interrupt.h>
 #include <linux/kallsyms.h>
 #include <linux/spinlock.h>
@@ -143,12 +146,11 @@ trap_signal:
 #ifdef CONFIG_X86_64
         if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
             printk_ratelimit()) {
-                printk(KERN_INFO
-                       "%s[%d] trap %s ip:%lx sp:%lx error:%lx",
-                       tsk->comm, tsk->pid, str,
-                       regs->ip, regs->sp, error_code);
+                pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
+                        tsk->comm, tsk->pid, str,
+                        regs->ip, regs->sp, error_code);
                 print_vma_addr(" in ", regs->ip);
-                printk("\n");
+                pr_cont("\n");
         }
 #endif
 
@@ -269,12 +271,11 @@ do_general_protection(struct pt_regs *regs, long error_code)
 
         if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
                         printk_ratelimit()) {
-                printk(KERN_INFO
-                        "%s[%d] general protection ip:%lx sp:%lx error:%lx",
+                pr_info("%s[%d] general protection ip:%lx sp:%lx error:%lx",
                         tsk->comm, task_pid_nr(tsk),
                         regs->ip, regs->sp, error_code);
                 print_vma_addr(" in ", regs->ip);
-                printk("\n");
+                pr_cont("\n");
         }
 
         force_sig(SIGSEGV, tsk);
@@ -570,7 +571,7 @@ do_spurious_interrupt_bug(struct pt_regs *regs, long error_code)
         conditional_sti(regs);
 #if 0
         /* No need to warn about this any longer. */
-        printk(KERN_INFO "Ignoring P6 Local APIC Spurious Interrupt Bug...\n");
+        pr_info("Ignoring P6 Local APIC Spurious Interrupt Bug...\n");
 #endif
 }
 
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index fc0a147e3727..cfa5d4f7ca56 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1,3 +1,5 @@
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/init.h>
@@ -84,8 +86,7 @@ EXPORT_SYMBOL_GPL(check_tsc_unstable);
 #ifdef CONFIG_X86_TSC
 int __init notsc_setup(char *str)
 {
-        printk(KERN_WARNING "notsc: Kernel compiled with CONFIG_X86_TSC, "
-                        "cannot disable TSC completely.\n");
+        pr_warn("Kernel compiled with CONFIG_X86_TSC, cannot disable TSC completely\n");
         tsc_disabled = 1;
         return 1;
 }
@@ -373,7 +374,7 @@ static unsigned long quick_pit_calibrate(void)
                         goto success;
                 }
         }
-        printk("Fast TSC calibration failed\n");
+        pr_err("Fast TSC calibration failed\n");
         return 0;
 
 success:
@@ -392,7 +393,7 @@ success:
          */
         delta *= PIT_TICK_RATE;
         do_div(delta, i*256*1000);
-        printk("Fast TSC calibration using PIT\n");
+        pr_info("Fast TSC calibration using PIT\n");
         return delta;
 }
 
@@ -487,9 +488,8 @@ unsigned long native_calibrate_tsc(void)
                  * use the reference value, as it is more precise.
                  */
                 if (delta >= 90 && delta <= 110) {
-                        printk(KERN_INFO
-                               "TSC: PIT calibration matches %s. %d loops\n",
-                               hpet ? "HPET" : "PMTIMER", i + 1);
+                        pr_info("PIT calibration matches %s. %d loops\n",
+                                hpet ? "HPET" : "PMTIMER", i + 1);
                         return tsc_ref_min;
                 }
 
@@ -511,38 +511,36 @@ unsigned long native_calibrate_tsc(void)
          */
         if (tsc_pit_min == ULONG_MAX) {
                 /* PIT gave no useful value */
-                printk(KERN_WARNING "TSC: Unable to calibrate against PIT\n");
+                pr_warn("Unable to calibrate against PIT\n");
 
                 /* We don't have an alternative source, disable TSC */
                 if (!hpet && !ref1 && !ref2) {
-                        printk("TSC: No reference (HPET/PMTIMER) available\n");
+                        pr_notice("No reference (HPET/PMTIMER) available\n");
                         return 0;
                 }
 
                 /* The alternative source failed as well, disable TSC */
                 if (tsc_ref_min == ULONG_MAX) {
-                        printk(KERN_WARNING "TSC: HPET/PMTIMER calibration "
-                               "failed.\n");
+                        pr_warn("HPET/PMTIMER calibration failed\n");
                         return 0;
                 }
 
                 /* Use the alternative source */
-                printk(KERN_INFO "TSC: using %s reference calibration\n",
-                       hpet ? "HPET" : "PMTIMER");
+                pr_info("using %s reference calibration\n",
+                        hpet ? "HPET" : "PMTIMER");
 
                 return tsc_ref_min;
         }
 
         /* We don't have an alternative source, use the PIT calibration value */
         if (!hpet && !ref1 && !ref2) {
-                printk(KERN_INFO "TSC: Using PIT calibration value\n");
+                pr_info("Using PIT calibration value\n");
                 return tsc_pit_min;
         }
 
         /* The alternative source failed, use the PIT calibration value */
         if (tsc_ref_min == ULONG_MAX) {
-                printk(KERN_WARNING "TSC: HPET/PMTIMER calibration failed. "
-                       "Using PIT calibration\n");
+                pr_warn("HPET/PMTIMER calibration failed. Using PIT calibration.\n");
                 return tsc_pit_min;
         }
 
@@ -551,9 +549,9 @@ unsigned long native_calibrate_tsc(void)
          * the PIT value as we know that there are PMTIMERs around
          * running at double speed. At least we let the user know:
          */
-        printk(KERN_WARNING "TSC: PIT calibration deviates from %s: %lu %lu.\n",
-               hpet ? "HPET" : "PMTIMER", tsc_pit_min, tsc_ref_min);
-        printk(KERN_INFO "TSC: Using PIT calibration value\n");
+        pr_warn("PIT calibration deviates from %s: %lu %lu\n",
+                hpet ? "HPET" : "PMTIMER", tsc_pit_min, tsc_ref_min);
+        pr_info("Using PIT calibration value\n");
         return tsc_pit_min;
 }
 
@@ -785,7 +783,7 @@ void mark_tsc_unstable(char *reason)
                 tsc_unstable = 1;
                 sched_clock_stable = 0;
                 disable_sched_clock_irqtime();
-                printk(KERN_INFO "Marking TSC unstable due to %s\n", reason);
+                pr_info("Marking TSC unstable due to %s\n", reason);
                 /* Change only the rating, when not registered */
                 if (clocksource_tsc.mult)
                         clocksource_mark_unstable(&clocksource_tsc);
@@ -912,9 +910,9 @@ static void tsc_refine_calibration_work(struct work_struct *work)
                 goto out;
 
         tsc_khz = freq;
-        printk(KERN_INFO "Refined TSC clocksource calibration: "
-                "%lu.%03lu MHz.\n", (unsigned long)tsc_khz / 1000,
-                                        (unsigned long)tsc_khz % 1000);
+        pr_info("Refined TSC clocksource calibration: %lu.%03lu MHz\n",
+                (unsigned long)tsc_khz / 1000,
+                (unsigned long)tsc_khz % 1000);
 
 out:
         clocksource_register_khz(&clocksource_tsc, tsc_khz);
@@ -970,9 +968,9 @@ void __init tsc_init(void)
                 return;
         }
 
-        printk("Detected %lu.%03lu MHz processor.\n",
-                        (unsigned long)cpu_khz / 1000,
-                        (unsigned long)cpu_khz % 1000);
+        pr_info("Detected %lu.%03lu MHz processor\n",
+                (unsigned long)cpu_khz / 1000,
+                (unsigned long)cpu_khz % 1000);
 
         /*
          * Secondary CPUs do not run through tsc_init(), so set up
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index dc4e910a7d96..36fd42091fa7 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -409,9 +409,10 @@ static int validate_insn_bits(struct arch_uprobe *auprobe, struct mm_struct *mm,
  * arch_uprobe_analyze_insn - instruction analysis including validity and fixups.
  * @mm: the probed address space.
  * @arch_uprobe: the probepoint information.
+ * @addr: virtual address at which to install the probepoint
  * Return 0 on success or a -ve number on error.
  */
-int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm)
+int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long addr)
 {
         int ret;
         struct insn insn;
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 255f58ae71e8..54abcc0baf23 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -28,6 +28,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/capability.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
@@ -137,14 +139,14 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
         local_irq_enable();
 
         if (!current->thread.vm86_info) {
-                printk("no vm86_info: BAD\n");
+                pr_alert("no vm86_info: BAD\n");
                 do_exit(SIGSEGV);
         }
         set_flags(regs->pt.flags, VEFLAGS, X86_EFLAGS_VIF | current->thread.v86mask);
         tmp = copy_vm86_regs_to_user(&current->thread.vm86_info->regs, regs);
         tmp += put_user(current->thread.screen_bitmap, &current->thread.vm86_info->screen_bitmap);
         if (tmp) {
-                printk("vm86: could not access userspace vm86_info\n");
+                pr_alert("could not access userspace vm86_info\n");
                 do_exit(SIGSEGV);
         }
 
diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c
index 8eeb55a551b4..992f890283e9 100644
--- a/arch/x86/kernel/vsmp_64.c
+++ b/arch/x86/kernel/vsmp_64.c
@@ -16,6 +16,7 @@
 #include <linux/pci_ids.h>
 #include <linux/pci_regs.h>
 #include <linux/smp.h>
+#include <linux/irq.h>
 
 #include <asm/apic.h>
 #include <asm/pci-direct.h>
@@ -95,6 +96,18 @@ static void __init set_vsmp_pv_ops(void)
         ctl = readl(address + 4);
         printk(KERN_INFO "vSMP CTL: capabilities:0x%08x  control:0x%08x\n",
                cap, ctl);
+
+        /* If possible, let the vSMP foundation route the interrupt optimally */
+#ifdef CONFIG_SMP
+        if (cap & ctl & BIT(8)) {
+                ctl &= ~BIT(8);
+#ifdef CONFIG_PROC_FS
+                /* Don't let users change irq affinity via procfs */
+                no_irq_affinity = 1;
+#endif
+        }
+#endif
+
         if (cap & ctl & (1 << 4)) {
                 /* Setup irq ops and turn on vSMP  IRQ fastpath handling */
                 pv_irq_ops.irq_disable = PV_CALLEE_SAVE(vsmp_irq_disable);
@@ -102,12 +115,11 @@ static void __init set_vsmp_pv_ops(void)
                 pv_irq_ops.save_fl  = PV_CALLEE_SAVE(vsmp_save_fl);
                 pv_irq_ops.restore_fl  = PV_CALLEE_SAVE(vsmp_restore_fl);
                 pv_init_ops.patch = vsmp_patch;
-
                 ctl &= ~(1 << 4);
-                writel(ctl, address + 4);
-                ctl = readl(address + 4);
-                printk(KERN_INFO "vSMP CTL: control set to:0x%08x\n", ctl);
         }
+        writel(ctl, address + 4);
+        ctl = readl(address + 4);
+        pr_info("vSMP CTL: control set to:0x%08x\n", ctl);
 
         early_iounmap(address, 8);
 }
@@ -187,12 +199,36 @@ static void __init vsmp_cap_cpus(void)
 #endif
 }
 
+static int apicid_phys_pkg_id(int initial_apic_id, int index_msb)
+{
+        return hard_smp_processor_id() >> index_msb;
+}
+
+/*
+ * In vSMP, all cpus should be capable of handling interrupts, regardless of
+ * the APIC used.
+ */
+static void fill_vector_allocation_domain(int cpu, struct cpumask *retmask,
+                                          const struct cpumask *mask)
+{
+        cpumask_setall(retmask);
+}
+
+static void vsmp_apic_post_init(void)
+{
+        /* need to update phys_pkg_id */
+        apic->phys_pkg_id = apicid_phys_pkg_id;
+        apic->vector_allocation_domain = fill_vector_allocation_domain;
+}
+
 void __init vsmp_init(void)
 {
         detect_vsmp_box();
         if (!is_vsmp_box())
                 return;
 
+        x86_platform.apic_post_init = vsmp_apic_post_init;
+
         vsmp_cap_cpus();
 
         set_vsmp_pv_ops();
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 5db36caf4289..8d141b309046 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -18,6 +18,8 @@
  *  use the vDSO.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/time.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -111,18 +113,13 @@ void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
 static void warn_bad_vsyscall(const char *level, struct pt_regs *regs,
                               const char *message)
 {
-        static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);
-        struct task_struct *tsk;
-
-        if (!show_unhandled_signals || !__ratelimit(&rs))
+        if (!show_unhandled_signals)
                 return;
 
-        tsk = current;
-
-        printk("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
-               level, tsk->comm, task_pid_nr(tsk),
-               message, regs->ip, regs->cs,
-               regs->sp, regs->ax, regs->si, regs->di);
+        pr_notice_ratelimited("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
+                              level, current->comm, task_pid_nr(current),
+                              message, regs->ip, regs->cs,
+                              regs->sp, regs->ax, regs->si, regs->di);
 }
 
 static int addr_to_vsyscall_nr(unsigned long addr)
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index 9796c2f3d074..6020f6f5927c 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -28,6 +28,7 @@ EXPORT_SYMBOL(__put_user_8);
 
 EXPORT_SYMBOL(copy_user_generic_string);
 EXPORT_SYMBOL(copy_user_generic_unrolled);
+EXPORT_SYMBOL(copy_user_enhanced_fast_string);
 EXPORT_SYMBOL(__copy_user_nocache);
 EXPORT_SYMBOL(_copy_from_user);
 EXPORT_SYMBOL(_copy_to_user);
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 35c5e543f550..9f3167e891ef 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -29,7 +29,6 @@ void __init x86_init_uint_noop(unsigned int unused) { }
 void __init x86_init_pgd_noop(pgd_t *unused) { }
 int __init iommu_init_noop(void) { return 0; }
 void iommu_shutdown_noop(void) { }
-void wallclock_init_noop(void) { }
 
 /*
  * The platform setup functions are preset with the default functions
@@ -101,7 +100,6 @@ static int default_i8042_detect(void) { return 1; };
 
 struct x86_platform_ops x86_platform = {
         .calibrate_tsc                  = native_calibrate_tsc,
-        .wallclock_init                 = wallclock_init_noop,
         .get_wallclock                  = mach_get_cmos_time,
         .set_wallclock                  = mach_set_rtc_mmss,
         .iommu_shutdown                 = iommu_shutdown_noop,
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index bd18149b2b0f..3d3e20709119 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -3,6 +3,9 @@
  *
  * Author: Suresh Siddha <suresh.b.siddha@intel.com>
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/bootmem.h>
 #include <linux/compat.h>
 #include <asm/i387.h>
@@ -162,7 +165,7 @@ int save_i387_xstate(void __user *buf)
         BUG_ON(sig_xstate_size < xstate_size);
 
         if ((unsigned long)buf % 64)
-                printk("save_i387_xstate: bad fpstate %p\n", buf);
+                pr_err("%s: bad fpstate %p\n", __func__, buf);
 
         if (!used_math())
                 return 0;
@@ -422,7 +425,7 @@ static void __init xstate_enable_boot_cpu(void)
         pcntxt_mask = eax + ((u64)edx << 32);
 
         if ((pcntxt_mask & XSTATE_FPSSE) != XSTATE_FPSSE) {
-                printk(KERN_ERR "FP/SSE not shown under xsave features 0x%llx\n",
+                pr_err("FP/SSE not shown under xsave features 0x%llx\n",
                        pcntxt_mask);
                 BUG();
         }
@@ -445,9 +448,8 @@ static void __init xstate_enable_boot_cpu(void)
 
         setup_xstate_init();
 
-        printk(KERN_INFO "xsave/xrstor: enabled xstate_bv 0x%llx, "
-               "cntxt size 0x%x\n",
-               pcntxt_mask, xstate_size);
+        pr_info("enabled xstate_bv 0x%llx, cntxt size 0x%x\n",
+                pcntxt_mask, xstate_size);
 }
 
 /*
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 2e88438ffd83..9b7ec1150ab0 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -80,10 +80,10 @@ static inline struct kvm_pmc *get_fixed_pmc_idx(struct kvm_pmu *pmu, int idx)
 
 static struct kvm_pmc *global_idx_to_pmc(struct kvm_pmu *pmu, int idx)
 {
-        if (idx < X86_PMC_IDX_FIXED)
+        if (idx < INTEL_PMC_IDX_FIXED)
                 return get_gp_pmc(pmu, MSR_P6_EVNTSEL0 + idx, MSR_P6_EVNTSEL0);
         else
-                return get_fixed_pmc_idx(pmu, idx - X86_PMC_IDX_FIXED);
+                return get_fixed_pmc_idx(pmu, idx - INTEL_PMC_IDX_FIXED);
 }
 
 void kvm_deliver_pmi(struct kvm_vcpu *vcpu)
@@ -291,7 +291,7 @@ static void reprogram_idx(struct kvm_pmu *pmu, int idx)
         if (pmc_is_gp(pmc))
                 reprogram_gp_counter(pmc, pmc->eventsel);
         else {
-                int fidx = idx - X86_PMC_IDX_FIXED;
+                int fidx = idx - INTEL_PMC_IDX_FIXED;
                 reprogram_fixed_counter(pmc,
                                 fixed_en_pmi(pmu->fixed_ctr_ctrl, fidx), fidx);
         }
@@ -452,7 +452,7 @@ void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu)
                 return;
 
         pmu->nr_arch_gp_counters = min((int)(entry->eax >> 8) & 0xff,
-                        X86_PMC_MAX_GENERIC);
+                        INTEL_PMC_MAX_GENERIC);
         pmu->counter_bitmask[KVM_PMC_GP] =
                 ((u64)1 << ((entry->eax >> 16) & 0xff)) - 1;
         bitmap_len = (entry->eax >> 24) & 0xff;
@@ -462,13 +462,13 @@ void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu)
                 pmu->nr_arch_fixed_counters = 0;
         } else {
                 pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f),
-                                X86_PMC_MAX_FIXED);
+                                INTEL_PMC_MAX_FIXED);
                 pmu->counter_bitmask[KVM_PMC_FIXED] =
                         ((u64)1 << ((entry->edx >> 5) & 0xff)) - 1;
         }
 
         pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) |
-                (((1ull << pmu->nr_arch_fixed_counters) - 1) << X86_PMC_IDX_FIXED);
+                (((1ull << pmu->nr_arch_fixed_counters) - 1) << INTEL_PMC_IDX_FIXED);
         pmu->global_ctrl_mask = ~pmu->global_ctrl;
 }
 
@@ -478,15 +478,15 @@ void kvm_pmu_init(struct kvm_vcpu *vcpu)
         struct kvm_pmu *pmu = &vcpu->arch.pmu;
 
         memset(pmu, 0, sizeof(*pmu));
-        for (i = 0; i < X86_PMC_MAX_GENERIC; i++) {
+        for (i = 0; i < INTEL_PMC_MAX_GENERIC; i++) {
                 pmu->gp_counters[i].type = KVM_PMC_GP;
                 pmu->gp_counters[i].vcpu = vcpu;
                 pmu->gp_counters[i].idx = i;
         }
-        for (i = 0; i < X86_PMC_MAX_FIXED; i++) {
+        for (i = 0; i < INTEL_PMC_MAX_FIXED; i++) {
                 pmu->fixed_counters[i].type = KVM_PMC_FIXED;
                 pmu->fixed_counters[i].vcpu = vcpu;
-                pmu->fixed_counters[i].idx = i + X86_PMC_IDX_FIXED;
+                pmu->fixed_counters[i].idx = i + INTEL_PMC_IDX_FIXED;
         }
         init_irq_work(&pmu->irq_work, trigger_pmi);
         kvm_pmu_cpuid_update(vcpu);
@@ -498,13 +498,13 @@ void kvm_pmu_reset(struct kvm_vcpu *vcpu)
         int i;
 
         irq_work_sync(&pmu->irq_work);
-        for (i = 0; i < X86_PMC_MAX_GENERIC; i++) {
+        for (i = 0; i < INTEL_PMC_MAX_GENERIC; i++) {
                 struct kvm_pmc *pmc = &pmu->gp_counters[i];
                 stop_counter(pmc);
                 pmc->counter = pmc->eventsel = 0;
         }
 
-        for (i = 0; i < X86_PMC_MAX_FIXED; i++)
+        for (i = 0; i < INTEL_PMC_MAX_FIXED; i++)
                 stop_counter(&pmu->fixed_counters[i]);
 
         pmu->fixed_ctr_ctrl = pmu->global_ctrl = pmu->global_status =
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 911d2641f14c..62d02e3c3ed6 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -710,16 +710,6 @@ TRACE_EVENT(kvm_skinit,
                   __entry->rip, __entry->slb)
 );
 
-#define __print_insn(insn, ilen) ({                              \
-        int i;                                                   \
-        const char *ret = p->buffer + p->len;                    \
-                                                                 \
-        for (i = 0; i < ilen; ++i)                               \
-                trace_seq_printf(p, " %02x", insn[i]);           \
-        trace_seq_printf(p, "%c", 0);                            \
-        ret;                                                     \
-        })
-
 #define KVM_EMUL_INSN_F_CR0_PE (1 << 0)
 #define KVM_EMUL_INSN_F_EFL_VM (1 << 1)
 #define KVM_EMUL_INSN_F_CS_D   (1 << 2)
@@ -786,7 +776,7 @@ TRACE_EVENT(kvm_emulate_insn,
 
         TP_printk("%x:%llx:%s (%s)%s",
                   __entry->csbase, __entry->rip,
-                  __print_insn(__entry->insn, __entry->len),
+                  __print_hex(__entry->insn, __entry->len),
                   __print_symbolic(__entry->flags,
                                    kvm_trace_symbol_emul_flags),
                   __entry->failed ? " failed" : ""
diff --git a/arch/x86/lib/msr-reg-export.c b/arch/x86/lib/msr-reg-export.c
index a311cc59b65d..8d6ef78b5d01 100644
--- a/arch/x86/lib/msr-reg-export.c
+++ b/arch/x86/lib/msr-reg-export.c
@@ -1,5 +1,5 @@
 #include <linux/module.h>
 #include <asm/msr.h>
 
-EXPORT_SYMBOL(native_rdmsr_safe_regs);
-EXPORT_SYMBOL(native_wrmsr_safe_regs);
+EXPORT_SYMBOL(rdmsr_safe_regs);
+EXPORT_SYMBOL(wrmsr_safe_regs);
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index 69fa10623f21..f6d13eefad10 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -6,13 +6,13 @@
 
 #ifdef CONFIG_X86_64
 /*
- * int native_{rdmsr,wrmsr}_safe_regs(u32 gprs[8]);
+ * int {rdmsr,wrmsr}_safe_regs(u32 gprs[8]);
  *
  * reg layout: u32 gprs[eax, ecx, edx, ebx, esp, ebp, esi, edi]
  *
  */
 .macro op_safe_regs op
-ENTRY(native_\op\()_safe_regs)
+ENTRY(\op\()_safe_regs)
         CFI_STARTPROC
         pushq_cfi %rbx
         pushq_cfi %rbp
@@ -45,13 +45,13 @@ ENTRY(native_\op\()_safe_regs)
 
         _ASM_EXTABLE(1b, 3b)
         CFI_ENDPROC
-ENDPROC(native_\op\()_safe_regs)
+ENDPROC(\op\()_safe_regs)
 .endm
 
 #else /* X86_32 */
 
 .macro op_safe_regs op
-ENTRY(native_\op\()_safe_regs)
+ENTRY(\op\()_safe_regs)
         CFI_STARTPROC
         pushl_cfi %ebx
         pushl_cfi %ebp
@@ -92,7 +92,7 @@ ENTRY(native_\op\()_safe_regs)
 
         _ASM_EXTABLE(1b, 3b)
         CFI_ENDPROC
-ENDPROC(native_\op\()_safe_regs)
+ENDPROC(\op\()_safe_regs)
 .endm
 
 #endif
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index bc4e9d84157f..e0e6990723e9 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -385,7 +385,7 @@ void free_initmem(void)
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
+void __init free_initrd_mem(unsigned long start, unsigned long end)
 {
         /*
          * end could be not aligned, and We can not align that,
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index 303f08637826..b2b94438ff05 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -312,7 +312,7 @@ static int op_amd_fill_in_addresses(struct op_msrs * const msrs)
                         goto fail;
                 }
                 /* both registers must be reserved */
-                if (num_counters == AMD64_NUM_COUNTERS_F15H) {
+                if (num_counters == AMD64_NUM_COUNTERS_CORE) {
                         msrs->counters[i].addr = MSR_F15H_PERF_CTR + (i << 1);
                         msrs->controls[i].addr = MSR_F15H_PERF_CTL + (i << 1);
                 } else {
@@ -514,7 +514,7 @@ static int op_amd_init(struct oprofile_operations *ops)
         ops->create_files = setup_ibs_files;
 
         if (boot_cpu_data.x86 == 0x15) {
-                num_counters = AMD64_NUM_COUNTERS_F15H;
+                num_counters = AMD64_NUM_COUNTERS_CORE;
         } else {
                 num_counters = AMD64_NUM_COUNTERS;
         }
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 59880afa851f..71b5d5a07d7b 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -1,7 +1,7 @@
 /*
  *      SGI UltraViolet TLB flush routines.
  *
- *      (c) 2008-2011 Cliff Wickman <cpw@sgi.com>, SGI.
+ *      (c) 2008-2012 Cliff Wickman <cpw@sgi.com>, SGI.
  *
  *      This code is released under the GNU General Public License version 2 or
  *      later.
@@ -38,8 +38,7 @@ static int timeout_base_ns[] = {
 
 static int timeout_us;
 static int nobau;
-static int baudisabled;
-static spinlock_t disable_lock;
+static int nobau_perm;
 static cycles_t congested_cycles;
 
 /* tunables: */
@@ -47,12 +46,13 @@ static int max_concurr		= MAX_BAU_CONCURRENT;
 static int max_concurr_const    = MAX_BAU_CONCURRENT;
 static int plugged_delay        = PLUGGED_DELAY;
 static int plugsb4reset         = PLUGSB4RESET;
+static int giveup_limit         = GIVEUP_LIMIT;
 static int timeoutsb4reset      = TIMEOUTSB4RESET;
 static int ipi_reset_limit      = IPI_RESET_LIMIT;
 static int complete_threshold   = COMPLETE_THRESHOLD;
 static int congested_respns_us  = CONGESTED_RESPONSE_US;
 static int congested_reps       = CONGESTED_REPS;
-static int congested_period     = CONGESTED_PERIOD;
+static int disabled_period      = DISABLED_PERIOD;
 
 static struct tunables tunables[] = {
         {&max_concurr, MAX_BAU_CONCURRENT}, /* must be [0] */
@@ -63,7 +63,8 @@ static struct tunables tunables[] = {
         {&complete_threshold, COMPLETE_THRESHOLD},
         {&congested_respns_us, CONGESTED_RESPONSE_US},
         {&congested_reps, CONGESTED_REPS},
-        {&congested_period, CONGESTED_PERIOD}
+        {&disabled_period, DISABLED_PERIOD},
+        {&giveup_limit, GIVEUP_LIMIT}
 };
 
 static struct dentry *tunables_dir;
@@ -120,6 +121,40 @@ static DEFINE_PER_CPU(struct ptc_stats, ptcstats);
 static DEFINE_PER_CPU(struct bau_control, bau_control);
 static DEFINE_PER_CPU(cpumask_var_t, uv_flush_tlb_mask);
 
+static void
+set_bau_on(void)
+{
+        int cpu;
+        struct bau_control *bcp;
+
+        if (nobau_perm) {
+                pr_info("BAU not initialized; cannot be turned on\n");
+                return;
+        }
+        nobau = 0;
+        for_each_present_cpu(cpu) {
+                bcp = &per_cpu(bau_control, cpu);
+                bcp->nobau = 0;
+        }
+        pr_info("BAU turned on\n");
+        return;
+}
+
+static void
+set_bau_off(void)
+{
+        int cpu;
+        struct bau_control *bcp;
+
+        nobau = 1;
+        for_each_present_cpu(cpu) {
+                bcp = &per_cpu(bau_control, cpu);
+                bcp->nobau = 1;
+        }
+        pr_info("BAU turned off\n");
+        return;
+}
+
 /*
  * Determine the first node on a uvhub. 'Nodes' are used for kernel
  * memory allocation.
@@ -278,7 +313,7 @@ static void bau_process_message(struct msg_desc *mdp, struct bau_control *bcp,
                  * Both sockets dump their completed count total into
                  * the message's count.
                  */
-                smaster->socket_acknowledge_count[mdp->msg_slot] = 0;
+                *sp = 0;
                 asp = (struct atomic_short *)&msg->acknowledge_count;
                 msg_ack_count = atom_asr(socket_ack_count, asp);
 
@@ -491,16 +526,15 @@ static int uv1_wait_completion(struct bau_desc *bau_desc,
 }
 
 /*
- * UV2 has an extra bit of status in the ACTIVATION_STATUS_2 register.
+ * UV2 could have an extra bit of status in the ACTIVATION_STATUS_2 register.
+ * But not currently used.
  */
 static unsigned long uv2_read_status(unsigned long offset, int rshft, int desc)
 {
         unsigned long descriptor_status;
-        unsigned long descriptor_status2;
 
-        descriptor_status = ((read_lmmr(offset) >> rshft) & UV_ACT_STATUS_MASK);
-        descriptor_status2 = (read_mmr_uv2_status() >> desc) & 0x1UL;
-        descriptor_status = (descriptor_status << 1) | descriptor_status2;
+        descriptor_status =
+                ((read_lmmr(offset) >> rshft) & UV_ACT_STATUS_MASK) << 1;
         return descriptor_status;
 }
 
@@ -531,87 +565,11 @@ int normal_busy(struct bau_control *bcp)
  */
 int handle_uv2_busy(struct bau_control *bcp)
 {
-        int busy_one = bcp->using_desc;
-        int normal = bcp->uvhub_cpu;
-        int selected = -1;
-        int i;
-        unsigned long descriptor_status;
-        unsigned long status;
-        int mmr_offset;
-        struct bau_desc *bau_desc_old;
-        struct bau_desc *bau_desc_new;
-        struct bau_control *hmaster = bcp->uvhub_master;
         struct ptc_stats *stat = bcp->statp;
-        cycles_t ttm;
 
         stat->s_uv2_wars++;
-        spin_lock(&hmaster->uvhub_lock);
-        /* try for the original first */
-        if (busy_one != normal) {
-                if (!normal_busy(bcp))
-                        selected = normal;
-        }
-        if (selected < 0) {
-                /* can't use the normal, select an alternate */
-                mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_1;
-                descriptor_status = read_lmmr(mmr_offset);
-
-                /* scan available descriptors 32-63 */
-                for (i = 0; i < UV_CPUS_PER_AS; i++) {
-                        if ((hmaster->inuse_map & (1 << i)) == 0) {
-                                status = ((descriptor_status >>
-                                                (i * UV_ACT_STATUS_SIZE)) &
-                                                UV_ACT_STATUS_MASK) << 1;
-                                if (status != UV2H_DESC_BUSY) {
-                                        selected = i + UV_CPUS_PER_AS;
-                                        break;
-                                }
-                        }
-                }
-        }
-
-        if (busy_one != normal)
-                /* mark the busy alternate as not in-use */
-                hmaster->inuse_map &= ~(1 << (busy_one - UV_CPUS_PER_AS));
-
-        if (selected >= 0) {
-                /* switch to the selected descriptor */
-                if (selected != normal) {
-                        /* set the selected alternate as in-use */
-                        hmaster->inuse_map |=
-                                        (1 << (selected - UV_CPUS_PER_AS));
-                        if (selected > stat->s_uv2_wars_hw)
-                                stat->s_uv2_wars_hw = selected;
-                }
-                bau_desc_old = bcp->descriptor_base;
-                bau_desc_old += (ITEMS_PER_DESC * busy_one);
-                bcp->using_desc = selected;
-                bau_desc_new = bcp->descriptor_base;
-                bau_desc_new += (ITEMS_PER_DESC * selected);
-                *bau_desc_new = *bau_desc_old;
-        } else {
-                /*
-                 * All are busy. Wait for the normal one for this cpu to
-                 * free up.
-                 */
-                stat->s_uv2_war_waits++;
-                spin_unlock(&hmaster->uvhub_lock);
-                ttm = get_cycles();
-                do {
-                        cpu_relax();
-                } while (normal_busy(bcp));
-                spin_lock(&hmaster->uvhub_lock);
-                /* switch to the original descriptor */
-                bcp->using_desc = normal;
-                bau_desc_old = bcp->descriptor_base;
-                bau_desc_old += (ITEMS_PER_DESC * bcp->using_desc);
-                bcp->using_desc = (ITEMS_PER_DESC * normal);
-                bau_desc_new = bcp->descriptor_base;
-                bau_desc_new += (ITEMS_PER_DESC * normal);
-                *bau_desc_new = *bau_desc_old; /* copy the entire descriptor */
-        }
-        spin_unlock(&hmaster->uvhub_lock);
-        return FLUSH_RETRY_BUSYBUG;
+        bcp->busy = 1;
+        return FLUSH_GIVEUP;
 }
 
 static int uv2_wait_completion(struct bau_desc *bau_desc,
@@ -620,7 +578,7 @@ static int uv2_wait_completion(struct bau_desc *bau_desc,
 {
         unsigned long descriptor_stat;
         cycles_t ttm;
-        int desc = bcp->using_desc;
+        int desc = bcp->uvhub_cpu;
         long busy_reps = 0;
         struct ptc_stats *stat = bcp->statp;
 
@@ -628,24 +586,38 @@ static int uv2_wait_completion(struct bau_desc *bau_desc,
 
         /* spin on the status MMR, waiting for it to go idle */
         while (descriptor_stat != UV2H_DESC_IDLE) {
-                /*
-                 * Our software ack messages may be blocked because
-                 * there are no swack resources available.  As long
-                 * as none of them has timed out hardware will NACK
-                 * our message and its state will stay IDLE.
-                 */
-                if ((descriptor_stat == UV2H_DESC_SOURCE_TIMEOUT) ||
-                    (descriptor_stat == UV2H_DESC_DEST_PUT_ERR)) {
+                if ((descriptor_stat == UV2H_DESC_SOURCE_TIMEOUT)) {
+                        /*
+                         * A h/w bug on the destination side may
+                         * have prevented the message being marked
+                         * pending, thus it doesn't get replied to
+                         * and gets continually nacked until it times
+                         * out with a SOURCE_TIMEOUT.
+                         */
                         stat->s_stimeout++;
                         return FLUSH_GIVEUP;
-                } else if (descriptor_stat == UV2H_DESC_DEST_STRONG_NACK) {
-                        stat->s_strongnacks++;
-                        bcp->conseccompletes = 0;
-                        return FLUSH_GIVEUP;
                 } else if (descriptor_stat == UV2H_DESC_DEST_TIMEOUT) {
+                        ttm = get_cycles();
+
+                        /*
+                         * Our retries may be blocked by all destination
+                         * swack resources being consumed, and a timeout
+                         * pending.  In that case hardware returns the
+                         * ERROR that looks like a destination timeout.
+                         * Without using the extended status we have to
+                         * deduce from the short time that this was a
+                         * strong nack.
+                         */
+                        if (cycles_2_us(ttm - bcp->send_message) < timeout_us) {
+                                bcp->conseccompletes = 0;
+                                stat->s_plugged++;
+                                /* FLUSH_RETRY_PLUGGED causes hang on boot */
+                                return FLUSH_GIVEUP;
+                        }
                         stat->s_dtimeout++;
                         bcp->conseccompletes = 0;
-                        return FLUSH_RETRY_TIMEOUT;
+                        /* FLUSH_RETRY_TIMEOUT causes hang on boot */
+                        return FLUSH_GIVEUP;
                 } else {
                         busy_reps++;
                         if (busy_reps > 1000000) {
@@ -653,9 +625,8 @@ static int uv2_wait_completion(struct bau_desc *bau_desc,
                                 busy_reps = 0;
                                 ttm = get_cycles();
                                 if ((ttm - bcp->send_message) >
-                                        (bcp->clocks_per_100_usec)) {
+                                                bcp->timeout_interval)
                                         return handle_uv2_busy(bcp);
-                                }
                         }
                         /*
                          * descriptor_stat is still BUSY
@@ -679,7 +650,7 @@ static int wait_completion(struct bau_desc *bau_desc,
 {
         int right_shift;
         unsigned long mmr_offset;
-        int desc = bcp->using_desc;
+        int desc = bcp->uvhub_cpu;
 
         if (desc < UV_CPUS_PER_AS) {
                 mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0;
@@ -758,33 +729,31 @@ static void destination_timeout(struct bau_desc *bau_desc,
 }
 
 /*
- * Completions are taking a very long time due to a congested numalink
- * network.
+ * Stop all cpus on a uvhub from using the BAU for a period of time.
+ * This is reversed by check_enable.
  */
-static void disable_for_congestion(struct bau_control *bcp,
-                                        struct ptc_stats *stat)
+static void disable_for_period(struct bau_control *bcp, struct ptc_stats *stat)
 {
-        /* let only one cpu do this disabling */
-        spin_lock(&disable_lock);
-
-        if (!baudisabled && bcp->period_requests &&
-            ((bcp->period_time / bcp->period_requests) > congested_cycles)) {
-                int tcpu;
-                struct bau_control *tbcp;
-                /* it becomes this cpu's job to turn on the use of the
-                   BAU again */
-                baudisabled = 1;
-                bcp->set_bau_off = 1;
-                bcp->set_bau_on_time = get_cycles();
-                bcp->set_bau_on_time += sec_2_cycles(bcp->cong_period);
+        int tcpu;
+        struct bau_control *tbcp;
+        struct bau_control *hmaster;
+        cycles_t tm1;
+
+        hmaster = bcp->uvhub_master;
+        spin_lock(&hmaster->disable_lock);
+        if (!bcp->baudisabled) {
                 stat->s_bau_disabled++;
+                tm1 = get_cycles();
                 for_each_present_cpu(tcpu) {
                         tbcp = &per_cpu(bau_control, tcpu);
-                        tbcp->baudisabled = 1;
+                        if (tbcp->uvhub_master == hmaster) {
+                                tbcp->baudisabled = 1;
+                                tbcp->set_bau_on_time =
+                                        tm1 + bcp->disabled_period;
+                        }
                 }
         }
-
-        spin_unlock(&disable_lock);
+        spin_unlock(&hmaster->disable_lock);
 }
 
 static void count_max_concurr(int stat, struct bau_control *bcp,
@@ -815,16 +784,30 @@ static void record_send_stats(cycles_t time1, cycles_t time2,
                         bcp->period_requests++;
                         bcp->period_time += elapsed;
                         if ((elapsed > congested_cycles) &&
-                            (bcp->period_requests > bcp->cong_reps))
-                                disable_for_congestion(bcp, stat);
+                            (bcp->period_requests > bcp->cong_reps) &&
+                            ((bcp->period_time / bcp->period_requests) >
+                                                        congested_cycles)) {
+                                stat->s_congested++;
+                                disable_for_period(bcp, stat);
+                        }
                 }
         } else
                 stat->s_requestor--;
 
         if (completion_status == FLUSH_COMPLETE && try > 1)
                 stat->s_retriesok++;
-        else if (completion_status == FLUSH_GIVEUP)
+        else if (completion_status == FLUSH_GIVEUP) {
                 stat->s_giveup++;
+                if (get_cycles() > bcp->period_end)
+                        bcp->period_giveups = 0;
+                bcp->period_giveups++;
+                if (bcp->period_giveups == 1)
+                        bcp->period_end = get_cycles() + bcp->disabled_period;
+                if (bcp->period_giveups > bcp->giveup_limit) {
+                        disable_for_period(bcp, stat);
+                        stat->s_giveuplimit++;
+                }
+        }
 }
 
 /*
@@ -868,7 +851,8 @@ static void handle_cmplt(int completion_status, struct bau_desc *bau_desc,
  * Returns 1 if it gives up entirely and the original cpu mask is to be
  * returned to the kernel.
  */
-int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp)
+int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp,
+        struct bau_desc *bau_desc)
 {
         int seq_number = 0;
         int completion_stat = 0;
@@ -881,24 +865,23 @@ int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp)
         struct bau_control *hmaster = bcp->uvhub_master;
         struct uv1_bau_msg_header *uv1_hdr = NULL;
         struct uv2_bau_msg_header *uv2_hdr = NULL;
-        struct bau_desc *bau_desc;
 
-        if (bcp->uvhub_version == 1)
+        if (bcp->uvhub_version == 1) {
+                uv1 = 1;
                 uv1_throttle(hmaster, stat);
+        }
 
         while (hmaster->uvhub_quiesce)
                 cpu_relax();
 
         time1 = get_cycles();
+        if (uv1)
+                uv1_hdr = &bau_desc->header.uv1_hdr;
+        else
+                uv2_hdr = &bau_desc->header.uv2_hdr;
+
         do {
-                bau_desc = bcp->descriptor_base;
-                bau_desc += (ITEMS_PER_DESC * bcp->using_desc);
-                if (bcp->uvhub_version == 1) {
-                        uv1 = 1;
-                        uv1_hdr = &bau_desc->header.uv1_hdr;
-                } else
-                        uv2_hdr = &bau_desc->header.uv2_hdr;
-                if ((try == 0) || (completion_stat == FLUSH_RETRY_BUSYBUG)) {
+                if (try == 0) {
                         if (uv1)
                                 uv1_hdr->msg_type = MSG_REGULAR;
                         else
@@ -916,25 +899,24 @@ int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp)
                         uv1_hdr->sequence = seq_number;
                 else
                         uv2_hdr->sequence = seq_number;
-                index = (1UL << AS_PUSH_SHIFT) | bcp->using_desc;
+                index = (1UL << AS_PUSH_SHIFT) | bcp->uvhub_cpu;
                 bcp->send_message = get_cycles();
 
                 write_mmr_activation(index);
 
                 try++;
                 completion_stat = wait_completion(bau_desc, bcp, try);
-                /* UV2: wait_completion() may change the bcp->using_desc */
 
                 handle_cmplt(completion_stat, bau_desc, bcp, hmaster, stat);
 
                 if (bcp->ipi_attempts >= bcp->ipi_reset_limit) {
                         bcp->ipi_attempts = 0;
+                        stat->s_overipilimit++;
                         completion_stat = FLUSH_GIVEUP;
                         break;
                 }
                 cpu_relax();
         } while ((completion_stat == FLUSH_RETRY_PLUGGED) ||
-                 (completion_stat == FLUSH_RETRY_BUSYBUG) ||
                  (completion_stat == FLUSH_RETRY_TIMEOUT));
 
         time2 = get_cycles();
@@ -955,28 +937,33 @@ int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp)
 }
 
 /*
- * The BAU is disabled. When the disabled time period has expired, the cpu
- * that disabled it must re-enable it.
- * Return 0 if it is re-enabled for all cpus.
+ * The BAU is disabled for this uvhub. When the disabled time period has
+ * expired re-enable it.
+ * Return 0 if it is re-enabled for all cpus on this uvhub.
  */
 static int check_enable(struct bau_control *bcp, struct ptc_stats *stat)
 {
         int tcpu;
         struct bau_control *tbcp;
+        struct bau_control *hmaster;
 
-        if (bcp->set_bau_off) {
-                if (get_cycles() >= bcp->set_bau_on_time) {
-                        stat->s_bau_reenabled++;
-                        baudisabled = 0;
-                        for_each_present_cpu(tcpu) {
-                                tbcp = &per_cpu(bau_control, tcpu);
+        hmaster = bcp->uvhub_master;
+        spin_lock(&hmaster->disable_lock);
+        if (bcp->baudisabled && (get_cycles() >= bcp->set_bau_on_time)) {
+                stat->s_bau_reenabled++;
+                for_each_present_cpu(tcpu) {
+                        tbcp = &per_cpu(bau_control, tcpu);
+                        if (tbcp->uvhub_master == hmaster) {
                                 tbcp->baudisabled = 0;
                                 tbcp->period_requests = 0;
                                 tbcp->period_time = 0;
+                                tbcp->period_giveups = 0;
                         }
-                        return 0;
                 }
+                spin_unlock(&hmaster->disable_lock);
+                return 0;
         }
+        spin_unlock(&hmaster->disable_lock);
         return -1;
 }
 
@@ -1078,18 +1065,32 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
         struct cpumask *flush_mask;
         struct ptc_stats *stat;
         struct bau_control *bcp;
-
-        /* kernel was booted 'nobau' */
-        if (nobau)
-                return cpumask;
+        unsigned long descriptor_status;
+        unsigned long status;
 
         bcp = &per_cpu(bau_control, cpu);
         stat = bcp->statp;
+        stat->s_enters++;
+
+        if (bcp->nobau)
+                return cpumask;
+
+        if (bcp->busy) {
+                descriptor_status =
+                        read_lmmr(UVH_LB_BAU_SB_ACTIVATION_STATUS_0);
+                status = ((descriptor_status >> (bcp->uvhub_cpu *
+                        UV_ACT_STATUS_SIZE)) & UV_ACT_STATUS_MASK) << 1;
+                if (status == UV2H_DESC_BUSY)
+                        return cpumask;
+                bcp->busy = 0;
+        }
 
         /* bau was disabled due to slow response */
         if (bcp->baudisabled) {
-                if (check_enable(bcp, stat))
+                if (check_enable(bcp, stat)) {
+                        stat->s_ipifordisabled++;
                         return cpumask;
+                }
         }
 
         /*
@@ -1105,7 +1106,7 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
                 stat->s_ntargself++;
 
         bau_desc = bcp->descriptor_base;
-        bau_desc += (ITEMS_PER_DESC * bcp->using_desc);
+        bau_desc += (ITEMS_PER_DESC * bcp->uvhub_cpu);
         bau_uvhubs_clear(&bau_desc->distribution, UV_DISTRIBUTION_SIZE);
         if (set_distrib_bits(flush_mask, bcp, bau_desc, &locals, &remotes))
                 return NULL;
@@ -1118,25 +1119,27 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
          * uv_flush_send_and_wait returns 0 if all cpu's were messaged,
          * or 1 if it gave up and the original cpumask should be returned.
          */
-        if (!uv_flush_send_and_wait(flush_mask, bcp))
+        if (!uv_flush_send_and_wait(flush_mask, bcp, bau_desc))
                 return NULL;
         else
                 return cpumask;
 }
 
 /*
- * Search the message queue for any 'other' message with the same software
- * acknowledge resource bit vector.
+ * Search the message queue for any 'other' unprocessed message with the
+ * same software acknowledge resource bit vector as the 'msg' message.
  */
 struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg,
-                        struct bau_control *bcp, unsigned char swack_vec)
+                                           struct bau_control *bcp)
 {
         struct bau_pq_entry *msg_next = msg + 1;
+        unsigned char swack_vec = msg->swack_vec;
 
         if (msg_next > bcp->queue_last)
                 msg_next = bcp->queue_first;
-        while ((msg_next->swack_vec != 0) && (msg_next != msg)) {
-                if (msg_next->swack_vec == swack_vec)
+        while (msg_next != msg) {
+                if ((msg_next->canceled == 0) && (msg_next->replied_to == 0) &&
+                                (msg_next->swack_vec == swack_vec))
                         return msg_next;
                 msg_next++;
                 if (msg_next > bcp->queue_last)
@@ -1165,32 +1168,30 @@ void process_uv2_message(struct msg_desc *mdp, struct bau_control *bcp)
                  * This message was assigned a swack resource, but no
                  * reserved acknowlegment is pending.
                  * The bug has prevented this message from setting the MMR.
-                 * And no other message has used the same sw_ack resource.
-                 * Do the requested shootdown but do not reply to the msg.
-                 * (the 0 means make no acknowledge)
                  */
-                bau_process_message(mdp, bcp, 0);
-                return;
-        }
-
-        /*
-         * Some message has set the MMR 'pending' bit; it might have been
-         * another message.  Look for that message.
-         */
-        other_msg = find_another_by_swack(msg, bcp, msg->swack_vec);
-        if (other_msg) {
-                /* There is another.  Do not ack the current one. */
-                bau_process_message(mdp, bcp, 0);
                 /*
-                 * Let the natural processing of that message acknowledge
-                 * it. Don't get the processing of sw_ack's out of order.
+                 * Some message has set the MMR 'pending' bit; it might have
+                 * been another message.  Look for that message.
                  */
-                return;
+                other_msg = find_another_by_swack(msg, bcp);
+                if (other_msg) {
+                        /*
+                         * There is another. Process this one but do not
+                         * ack it.
+                         */
+                        bau_process_message(mdp, bcp, 0);
+                        /*
+                         * Let the natural processing of that other message
+                         * acknowledge it. Don't get the processing of sw_ack's
+                         * out of order.
+                         */
+                        return;
+                }
         }
 
         /*
-         * There is no other message using this sw_ack, so it is safe to
-         * acknowledge it.
+         * Either the MMR shows this one pending a reply or there is no
+         * other message using this sw_ack, so it is safe to acknowledge it.
          */
         bau_process_message(mdp, bcp, 1);
 
@@ -1295,7 +1296,8 @@ static void __init enable_timeouts(void)
                  */
                 mmr_image |= (1L << SOFTACK_MSHIFT);
                 if (is_uv2_hub()) {
-                        mmr_image |= (1L << UV2_EXT_SHFT);
+                        /* hw bug workaround; do not use extended status */
+                        mmr_image &= ~(1L << UV2_EXT_SHFT);
                 }
                 write_mmr_misc_control(pnode, mmr_image);
         }
@@ -1338,29 +1340,34 @@ static inline unsigned long long usec_2_cycles(unsigned long microsec)
 static int ptc_seq_show(struct seq_file *file, void *data)
 {
         struct ptc_stats *stat;
+        struct bau_control *bcp;
         int cpu;
 
         cpu = *(loff_t *)data;
         if (!cpu) {
                 seq_printf(file,
-                        "# cpu sent stime self locals remotes ncpus localhub ");
+                 "# cpu bauoff sent stime self locals remotes ncpus localhub ");
                 seq_printf(file,
                         "remotehub numuvhubs numuvhubs16 numuvhubs8 ");
                 seq_printf(file,
-                    "numuvhubs4 numuvhubs2 numuvhubs1 dto snacks retries rok ");
+                        "numuvhubs4 numuvhubs2 numuvhubs1 dto snacks retries ");
+                seq_printf(file,
+                        "rok resetp resett giveup sto bz throt disable ");
                 seq_printf(file,
-                        "resetp resett giveup sto bz throt swack recv rtime ");
+                        "enable wars warshw warwaits enters ipidis plugged ");
                 seq_printf(file,
-                        "all one mult none retry canc nocan reset rcan ");
+                        "ipiover glim cong swack recv rtime all one mult ");
                 seq_printf(file,
-                        "disable enable wars warshw warwaits\n");
+                        "none retry canc nocan reset rcan\n");
         }
         if (cpu < num_possible_cpus() && cpu_online(cpu)) {
-                stat = &per_cpu(ptcstats, cpu);
+                bcp = &per_cpu(bau_control, cpu);
+                stat = bcp->statp;
                 /* source side statistics */
                 seq_printf(file,
-                        "cpu %d %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld ",
-                           cpu, stat->s_requestor, cycles_2_us(stat->s_time),
+                        "cpu %d %d %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld ",
+                           cpu, bcp->nobau, stat->s_requestor,
+                           cycles_2_us(stat->s_time),
                            stat->s_ntargself, stat->s_ntarglocals,
                            stat->s_ntargremotes, stat->s_ntargcpu,
                            stat->s_ntarglocaluvhub, stat->s_ntargremoteuvhub,
@@ -1374,20 +1381,23 @@ static int ptc_seq_show(struct seq_file *file, void *data)
                            stat->s_resets_plug, stat->s_resets_timeout,
                            stat->s_giveup, stat->s_stimeout,
                            stat->s_busy, stat->s_throttles);
+                seq_printf(file, "%ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld ",
+                           stat->s_bau_disabled, stat->s_bau_reenabled,
+                           stat->s_uv2_wars, stat->s_uv2_wars_hw,
+                           stat->s_uv2_war_waits, stat->s_enters,
+                           stat->s_ipifordisabled, stat->s_plugged,
+                           stat->s_overipilimit, stat->s_giveuplimit,
+                           stat->s_congested);
 
                 /* destination side statistics */
                 seq_printf(file,
-                           "%lx %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld ",
+                        "%lx %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld\n",
                            read_gmmr_sw_ack(uv_cpu_to_pnode(cpu)),
                            stat->d_requestee, cycles_2_us(stat->d_time),
                            stat->d_alltlb, stat->d_onetlb, stat->d_multmsg,
                            stat->d_nomsg, stat->d_retries, stat->d_canceled,
                            stat->d_nocanceled, stat->d_resets,
                            stat->d_rcanceled);
-                seq_printf(file, "%ld %ld %ld %ld %ld\n",
-                        stat->s_bau_disabled, stat->s_bau_reenabled,
-                        stat->s_uv2_wars, stat->s_uv2_wars_hw,
-                        stat->s_uv2_war_waits);
         }
         return 0;
 }
@@ -1401,13 +1411,14 @@ static ssize_t tunables_read(struct file *file, char __user *userbuf,
         char *buf;
         int ret;
 
-        buf = kasprintf(GFP_KERNEL, "%s %s %s\n%d %d %d %d %d %d %d %d %d\n",
-                "max_concur plugged_delay plugsb4reset",
-                "timeoutsb4reset ipi_reset_limit complete_threshold",
-                "congested_response_us congested_reps congested_period",
+        buf = kasprintf(GFP_KERNEL, "%s %s %s\n%d %d %d %d %d %d %d %d %d %d\n",
+                "max_concur plugged_delay plugsb4reset timeoutsb4reset",
+                "ipi_reset_limit complete_threshold congested_response_us",
+                "congested_reps disabled_period giveup_limit",
                 max_concurr, plugged_delay, plugsb4reset,
                 timeoutsb4reset, ipi_reset_limit, complete_threshold,
-                congested_respns_us, congested_reps, congested_period);
+                congested_respns_us, congested_reps, disabled_period,
+                giveup_limit);
 
         if (!buf)
                 return -ENOMEM;
@@ -1438,6 +1449,14 @@ static ssize_t ptc_proc_write(struct file *file, const char __user *user,
                 return -EFAULT;
         optstr[count - 1] = '\0';
 
+        if (!strcmp(optstr, "on")) {
+                set_bau_on();
+                return count;
+        } else if (!strcmp(optstr, "off")) {
+                set_bau_off();
+                return count;
+        }
+
         if (strict_strtol(optstr, 10, &input_arg) < 0) {
                 printk(KERN_DEBUG "%s is invalid\n", optstr);
                 return -EINVAL;
@@ -1570,7 +1589,8 @@ static ssize_t tunables_write(struct file *file, const char __user *user,
                 bcp->complete_threshold =       complete_threshold;
                 bcp->cong_response_us =         congested_respns_us;
                 bcp->cong_reps =                congested_reps;
-                bcp->cong_period =              congested_period;
+                bcp->disabled_period =          sec_2_cycles(disabled_period);
+                bcp->giveup_limit =             giveup_limit;
         }
         return count;
 }
@@ -1699,6 +1719,10 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
                          *   fairness chaining multilevel count replied_to
                          */
                 } else {
+                        /*
+                         * BIOS uses legacy mode, but UV2 hardware always
+                         * uses native mode for selective broadcasts.
+                         */
                         uv2_hdr = &bd2->header.uv2_hdr;
                         uv2_hdr->swack_flag =   1;
                         uv2_hdr->base_dest_nasid =
@@ -1811,8 +1835,8 @@ static int calculate_destination_timeout(void)
                 index = (mmr_image >> BAU_URGENCY_7_SHIFT) & BAU_URGENCY_7_MASK;
                 mmr_image = uv_read_local_mmr(UVH_TRANSACTION_TIMEOUT);
                 mult2 = (mmr_image >> BAU_TRANS_SHIFT) & BAU_TRANS_MASK;
-                base = timeout_base_ns[index];
-                ts_ns = base * mult1 * mult2;
+                ts_ns = timeout_base_ns[index];
+                ts_ns *= (mult1 * mult2);
                 ret = ts_ns / 1000;
         } else {
                 /* 4 bits  0/1 for 10/80us base, 3 bits of multiplier */
@@ -1836,6 +1860,8 @@ static void __init init_per_cpu_tunables(void)
         for_each_present_cpu(cpu) {
                 bcp = &per_cpu(bau_control, cpu);
                 bcp->baudisabled                = 0;
+                if (nobau)
+                        bcp->nobau              = 1;
                 bcp->statp                      = &per_cpu(ptcstats, cpu);
                 /* time interval to catch a hardware stay-busy bug */
                 bcp->timeout_interval           = usec_2_cycles(2*timeout_us);
@@ -1848,10 +1874,11 @@ static void __init init_per_cpu_tunables(void)
                 bcp->complete_threshold         = complete_threshold;
                 bcp->cong_response_us           = congested_respns_us;
                 bcp->cong_reps                  = congested_reps;
-                bcp->cong_period                = congested_period;
-                bcp->clocks_per_100_usec =      usec_2_cycles(100);
+                bcp->disabled_period =          sec_2_cycles(disabled_period);
+                bcp->giveup_limit =             giveup_limit;
                 spin_lock_init(&bcp->queue_lock);
                 spin_lock_init(&bcp->uvhub_lock);
+                spin_lock_init(&bcp->disable_lock);
         }
 }
 
@@ -1972,7 +1999,6 @@ static int scan_sock(struct socket_desc *sdp, struct uvhub_desc *bdp,
                 }
                 bcp->uvhub_master = *hmasterp;
                 bcp->uvhub_cpu = uv_cpu_hub_info(cpu)->blade_processor_id;
-                bcp->using_desc = bcp->uvhub_cpu;
                 if (bcp->uvhub_cpu >= MAX_CPUS_PER_UVHUB) {
                         printk(KERN_EMERG "%d cpus per uvhub invalid\n",
                                 bcp->uvhub_cpu);
@@ -2069,16 +2095,12 @@ static int __init uv_bau_init(void)
         if (!is_uv_system())
                 return 0;
 
-        if (nobau)
-                return 0;
-
         for_each_possible_cpu(cur_cpu) {
                 mask = &per_cpu(uv_flush_tlb_mask, cur_cpu);
                 zalloc_cpumask_var_node(mask, GFP_KERNEL, cpu_to_node(cur_cpu));
         }
 
         nuvhubs = uv_num_possible_blades();
-        spin_lock_init(&disable_lock);
         congested_cycles = usec_2_cycles(congested_respns_us);
 
         uv_base_pnode = 0x7fffffff;
@@ -2091,7 +2113,8 @@ static int __init uv_bau_init(void)
         enable_timeouts();
 
         if (init_per_cpu(nuvhubs, uv_base_pnode)) {
-                nobau = 1;
+                set_bau_off();
+                nobau_perm = 1;
                 return 0;
         }
 
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index f25c2765a5c9..acf7752da952 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -135,6 +135,7 @@ arch_enable_uv_irq(char *irq_name, unsigned int irq, int cpu, int mmr_blade,
         unsigned long mmr_value;
         struct uv_IO_APIC_route_entry *entry;
         int mmr_pnode, err;
+        unsigned int dest;
 
         BUILD_BUG_ON(sizeof(struct uv_IO_APIC_route_entry) !=
                         sizeof(unsigned long));
@@ -143,6 +144,10 @@ arch_enable_uv_irq(char *irq_name, unsigned int irq, int cpu, int mmr_blade,
         if (err != 0)
                 return err;
 
+        err = apic->cpu_mask_to_apicid_and(eligible_cpu, eligible_cpu, &dest);
+        if (err != 0)
+                return err;
+
         if (limit == UV_AFFINITY_CPU)
                 irq_set_status_flags(irq, IRQ_NO_BALANCING);
         else
@@ -159,7 +164,7 @@ arch_enable_uv_irq(char *irq_name, unsigned int irq, int cpu, int mmr_blade,
         entry->polarity         = 0;
         entry->trigger          = 0;
         entry->mask             = 0;
-        entry->dest             = apic->cpu_mask_to_apicid(eligible_cpu);
+        entry->dest             = dest;
 
         mmr_pnode = uv_blade_to_pnode(mmr_blade);
         uv_write_global_mmr64(mmr_pnode, mmr_offset, mmr_value);
@@ -222,7 +227,7 @@ uv_set_irq_affinity(struct irq_data *data, const struct cpumask *mask,
         if (cfg->move_in_progress)
                 send_cleanup_vector(cfg);
 
-        return 0;
+        return IRQ_SET_MASK_OK_NOCOPY;
 }
 
 /*
diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
index 5b84a2d30888..b2d534cab25f 100644
--- a/arch/x86/realmode/rm/Makefile
+++ b/arch/x86/realmode/rm/Makefile
@@ -22,7 +22,7 @@ wakeup-objs	+= video-bios.o
 realmode-y                      += header.o
 realmode-y                      += trampoline_$(BITS).o
 realmode-y                      += stack.o
-realmode-$(CONFIG_X86_32)       += reboot_32.o
+realmode-y                      += reboot.o
 realmode-$(CONFIG_ACPI_SLEEP)   += $(wakeup-objs)
 
 targets += $(realmode-y)
diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
index fadf48378ada..a28221d94e69 100644
--- a/arch/x86/realmode/rm/header.S
+++ b/arch/x86/realmode/rm/header.S
@@ -6,6 +6,7 @@
 
 #include <linux/linkage.h>
 #include <asm/page_types.h>
+#include <asm/segment.h>
 
 #include "realmode.h"
         
@@ -28,8 +29,9 @@ GLOBAL(real_mode_header)
         .long   pa_wakeup_header
 #endif
         /* APM/BIOS reboot */
-#ifdef CONFIG_X86_32
         .long   pa_machine_real_restart_asm
+#ifdef CONFIG_X86_64
+        .long   __KERNEL32_CS
 #endif
 END(real_mode_header)
 
diff --git a/arch/x86/realmode/rm/reboot_32.S b/arch/x86/realmode/rm/reboot.S
index 114044876b3d..f932ea61d1c8 100644
--- a/arch/x86/realmode/rm/reboot_32.S
+++ b/arch/x86/realmode/rm/reboot.S
@@ -2,6 +2,8 @@
 #include <linux/init.h>
 #include <asm/segment.h>
 #include <asm/page_types.h>
+#include <asm/processor-flags.h>
+#include <asm/msr-index.h>
 #include "realmode.h"
 
 /*
@@ -12,13 +14,35 @@
  * doesn't work with at least one type of 486 motherboard.  It is easy
  * to stop this code working; hence the copious comments.
  *
- * This code is called with the restart type (0 = BIOS, 1 = APM) in %eax.
+ * This code is called with the restart type (0 = BIOS, 1 = APM) in
+ * the primary argument register (%eax for 32 bit, %edi for 64 bit).
  */
         .section ".text32", "ax"
         .code32
-
-        .balign 16
 ENTRY(machine_real_restart_asm)
+
+#ifdef CONFIG_X86_64
+        /* Switch to trampoline GDT as it is guaranteed < 4 GiB */
+        movl    $__KERNEL_DS, %eax
+        movl    %eax, %ds
+        lgdtl   pa_tr_gdt
+
+        /* Disable paging to drop us out of long mode */
+        movl    %cr0, %eax
+        andl    $~X86_CR0_PG, %eax
+        movl    %eax, %cr0
+        ljmpl   $__KERNEL32_CS, $pa_machine_real_restart_paging_off
+
+GLOBAL(machine_real_restart_paging_off)
+        xorl    %eax, %eax
+        xorl    %edx, %edx
+        movl    $MSR_EFER, %ecx
+        wrmsr
+
+        movl    %edi, %eax
+        
+#endif /* CONFIG_X86_64 */
+        
         /* Set up the IDT for real mode. */
         lidtl   pa_machine_real_restart_idt
 
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 66e6d9359826..0faad646f5fd 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -205,9 +205,9 @@ void syscall32_cpu_init(void)
 {
         /* Load these always in case some future AMD CPU supports
            SYSENTER from compat mode too. */
-        checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
-        checking_wrmsrl(MSR_IA32_SYSENTER_ESP, 0ULL);
-        checking_wrmsrl(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
+        wrmsrl_safe(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
+        wrmsrl_safe(MSR_IA32_SYSENTER_ESP, 0ULL);
+        wrmsrl_safe(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
 
         wrmsrl(MSR_CSTAR, ia32_cstar_target);
 }
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index ff962d4b821e..ed7d54985d0c 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1124,9 +1124,7 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
         .wbinvd = native_wbinvd,
 
         .read_msr = native_read_msr_safe,
-        .rdmsr_regs = native_rdmsr_safe_regs,
         .write_msr = xen_write_msr_safe,
-        .wrmsr_regs = native_wrmsr_safe_regs,
 
         .read_tsc = native_read_tsc,
         .read_pmc = native_read_pmc,
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index afb250d22a6b..f58dca7a6e52 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -80,9 +80,7 @@ static void __cpuinit cpu_bringup(void)
 
         notify_cpu_starting(cpu);
 
-        ipi_call_lock();
         set_cpu_online(cpu, true);
-        ipi_call_unlock();
 
         this_cpu_write(cpu_state, CPU_ONLINE);
 
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index dcb8a6e48692..4b01ab3d2c24 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -24,6 +24,7 @@
 #include <linux/wait.h>
 #include <linux/async.h>
 #include <linux/pm_runtime.h>
+#include <scsi/scsi_scan.h>
 
 #include "base.h"
 #include "power/power.h"
@@ -332,6 +333,7 @@ void wait_for_device_probe(void)
         /* wait for the known devices to complete their probing */
         wait_event(probe_waitqueue, atomic_read(&probe_count) == 0);
         async_synchronize_full();
+        scsi_complete_async_scans();
 }
 EXPORT_SYMBOL_GPL(wait_for_device_probe);
 
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 65665c9c42c6..8f428a8ab003 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -499,7 +499,7 @@ static int rbd_header_from_disk(struct rbd_image_header *header,
                          / sizeof (*ondisk))
                 return -EINVAL;
         header->snapc = kmalloc(sizeof(struct ceph_snap_context) +
-                                snap_count * sizeof (*ondisk),
+                                snap_count * sizeof(u64),
                                 gfp_flags);
         if (!header->snapc)
                 return -ENOMEM;
@@ -977,7 +977,7 @@ static void rbd_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg)
         op = (void *)(replyhead + 1);
         rc = le32_to_cpu(replyhead->result);
         bytes = le64_to_cpu(op->extent.length);
-        read_op = (le32_to_cpu(op->op) == CEPH_OSD_OP_READ);
+        read_op = (le16_to_cpu(op->op) == CEPH_OSD_OP_READ);
 
         dout("rbd_req_cb bytes=%lld readop=%d rc=%d\n", bytes, read_op, rc);
 
diff --git a/drivers/clk/spear/spear1310_clock.c b/drivers/clk/spear/spear1310_clock.c
index 8f05652d53e6..0fcec2aae19c 100644
--- a/drivers/clk/spear/spear1310_clock.c
+++ b/drivers/clk/spear/spear1310_clock.c
@@ -345,31 +345,30 @@ static struct frac_rate_tbl gen_rtbl[] = {
 /* clock parents */
 static const char *vco_parents[] = { "osc_24m_clk", "osc_25m_clk", };
 static const char *gpt_parents[] = { "osc_24m_clk", "apb_clk", };
-static const char *uart0_parents[] = { "pll5_clk", "uart_synth_gate_clk", };
-static const char *c3_parents[] = { "pll5_clk", "c3_synth_gate_clk", };
-static const char *gmac_phy_input_parents[] = { "gmii_125m_pad_clk", "pll2_clk",
+static const char *uart0_parents[] = { "pll5_clk", "uart_syn_gclk", };
+static const char *c3_parents[] = { "pll5_clk", "c3_syn_gclk", };
+static const char *gmac_phy_input_parents[] = { "gmii_pad_clk", "pll2_clk",
         "osc_25m_clk", };
-static const char *gmac_phy_parents[] = { "gmac_phy_input_mux_clk",
-        "gmac_phy_synth_gate_clk", };
+static const char *gmac_phy_parents[] = { "phy_input_mclk", "phy_syn_gclk", };
 static const char *clcd_synth_parents[] = { "vco1div4_clk", "pll2_clk", };
-static const char *clcd_pixel_parents[] = { "pll5_clk", "clcd_synth_clk", };
+static const char *clcd_pixel_parents[] = { "pll5_clk", "clcd_syn_clk", };
 static const char *i2s_src_parents[] = { "vco1div2_clk", "none", "pll3_clk",
         "i2s_src_pad_clk", };
-static const char *i2s_ref_parents[] = { "i2s_src_mux_clk", "i2s_prs1_clk", };
+static const char *i2s_ref_parents[] = { "i2s_src_mclk", "i2s_prs1_clk", };
 static const char *gen_synth0_1_parents[] = { "vco1div4_clk", "vco3div2_clk",
         "pll3_clk", };
 static const char *gen_synth2_3_parents[] = { "vco1div4_clk", "vco3div2_clk",
         "pll2_clk", };
 static const char *rmii_phy_parents[] = { "ras_tx50_clk", "none",
-        "ras_pll2_clk", "ras_synth0_clk", };
+        "ras_pll2_clk", "ras_syn0_clk", };
 static const char *smii_rgmii_phy_parents[] = { "none", "ras_tx125_clk",
-        "ras_pll2_clk", "ras_synth0_clk", };
-static const char *uart_parents[] = { "ras_apb_clk", "gen_synth3_clk", };
-static const char *i2c_parents[] = { "ras_apb_clk", "gen_synth1_clk", };
-static const char *ssp1_parents[] = { "ras_apb_clk", "gen_synth1_clk",
+        "ras_pll2_clk", "ras_syn0_clk", };
+static const char *uart_parents[] = { "ras_apb_clk", "gen_syn3_clk", };
+static const char *i2c_parents[] = { "ras_apb_clk", "gen_syn1_clk", };
+static const char *ssp1_parents[] = { "ras_apb_clk", "gen_syn1_clk",
         "ras_plclk0_clk", };
-static const char *pci_parents[] = { "ras_pll3_clk", "gen_synth2_clk", };
-static const char *tdm_parents[] = { "ras_pll3_clk", "gen_synth1_clk", };
+static const char *pci_parents[] = { "ras_pll3_clk", "gen_syn2_clk", };
+static const char *tdm_parents[] = { "ras_pll3_clk", "gen_syn1_clk", };
 
 void __init spear1310_clk_init(void)
 {
@@ -390,9 +389,9 @@ void __init spear1310_clk_init(void)
                         25000000);
         clk_register_clkdev(clk, "osc_25m_clk", NULL);
 
-        clk = clk_register_fixed_rate(NULL, "gmii_125m_pad_clk", NULL,
-                        CLK_IS_ROOT, 125000000);
-        clk_register_clkdev(clk, "gmii_125m_pad_clk", NULL);
+        clk = clk_register_fixed_rate(NULL, "gmii_pad_clk", NULL, CLK_IS_ROOT,
+                        125000000);
+        clk_register_clkdev(clk, "gmii_pad_clk", NULL);
 
         clk = clk_register_fixed_rate(NULL, "i2s_src_pad_clk", NULL,
                         CLK_IS_ROOT, 12288000);
@@ -406,34 +405,34 @@ void __init spear1310_clk_init(void)
 
         /* clock derived from 24 or 25 MHz osc clk */
         /* vco-pll */
-        clk = clk_register_mux(NULL, "vco1_mux_clk", vco_parents,
+        clk = clk_register_mux(NULL, "vco1_mclk", vco_parents,
                         ARRAY_SIZE(vco_parents), 0, SPEAR1310_PLL_CFG,
                         SPEAR1310_PLL1_CLK_SHIFT, SPEAR1310_PLL_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "vco1_mux_clk", NULL);
-        clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, "vco1_mux_clk",
+        clk_register_clkdev(clk, "vco1_mclk", NULL);
+        clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, "vco1_mclk",
                         0, SPEAR1310_PLL1_CTR, SPEAR1310_PLL1_FRQ, pll_rtbl,
                         ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL);
         clk_register_clkdev(clk, "vco1_clk", NULL);
         clk_register_clkdev(clk1, "pll1_clk", NULL);
 
-        clk = clk_register_mux(NULL, "vco2_mux_clk", vco_parents,
+        clk = clk_register_mux(NULL, "vco2_mclk", vco_parents,
                         ARRAY_SIZE(vco_parents), 0, SPEAR1310_PLL_CFG,
                         SPEAR1310_PLL2_CLK_SHIFT, SPEAR1310_PLL_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "vco2_mux_clk", NULL);
-        clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, "vco2_mux_clk",
+        clk_register_clkdev(clk, "vco2_mclk", NULL);
+        clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, "vco2_mclk",
                         0, SPEAR1310_PLL2_CTR, SPEAR1310_PLL2_FRQ, pll_rtbl,
                         ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL);
         clk_register_clkdev(clk, "vco2_clk", NULL);
         clk_register_clkdev(clk1, "pll2_clk", NULL);
 
-        clk = clk_register_mux(NULL, "vco3_mux_clk", vco_parents,
+        clk = clk_register_mux(NULL, "vco3_mclk", vco_parents,
                         ARRAY_SIZE(vco_parents), 0, SPEAR1310_PLL_CFG,
                         SPEAR1310_PLL3_CLK_SHIFT, SPEAR1310_PLL_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "vco3_mux_clk", NULL);
-        clk = clk_register_vco_pll("vco3_clk", "pll3_clk", NULL, "vco3_mux_clk",
+        clk_register_clkdev(clk, "vco3_mclk", NULL);
+        clk = clk_register_vco_pll("vco3_clk", "pll3_clk", NULL, "vco3_mclk",
                         0, SPEAR1310_PLL3_CTR, SPEAR1310_PLL3_FRQ, pll_rtbl,
                         ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL);
         clk_register_clkdev(clk, "vco3_clk", NULL);
@@ -473,7 +472,7 @@ void __init spear1310_clk_init(void)
         /* peripherals */
         clk_register_fixed_factor(NULL, "thermal_clk", "osc_24m_clk", 0, 1,
                         128);
-        clk = clk_register_gate(NULL, "thermal_gate_clk", "thermal_clk", 0,
+        clk = clk_register_gate(NULL, "thermal_gclk", "thermal_clk", 0,
                         SPEAR1310_PERIP2_CLK_ENB, SPEAR1310_THSENS_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "spear_thermal");
@@ -500,177 +499,176 @@ void __init spear1310_clk_init(void)
         clk_register_clkdev(clk, "apb_clk", NULL);
 
         /* gpt clocks */
-        clk = clk_register_mux(NULL, "gpt0_mux_clk", gpt_parents,
+        clk = clk_register_mux(NULL, "gpt0_mclk", gpt_parents,
                         ARRAY_SIZE(gpt_parents), 0, SPEAR1310_PERIP_CLK_CFG,
                         SPEAR1310_GPT0_CLK_SHIFT, SPEAR1310_GPT_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gpt0_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt0_clk", "gpt0_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt0_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt0_clk", "gpt0_mclk", 0,
                         SPEAR1310_PERIP1_CLK_ENB, SPEAR1310_GPT0_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "gpt0");
 
-        clk = clk_register_mux(NULL, "gpt1_mux_clk", gpt_parents,
+        clk = clk_register_mux(NULL, "gpt1_mclk", gpt_parents,
                         ARRAY_SIZE(gpt_parents), 0, SPEAR1310_PERIP_CLK_CFG,
                         SPEAR1310_GPT1_CLK_SHIFT, SPEAR1310_GPT_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gpt1_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt1_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mclk", 0,
                         SPEAR1310_PERIP1_CLK_ENB, SPEAR1310_GPT1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "gpt1");
 
-        clk = clk_register_mux(NULL, "gpt2_mux_clk", gpt_parents,
+        clk = clk_register_mux(NULL, "gpt2_mclk", gpt_parents,
                         ARRAY_SIZE(gpt_parents), 0, SPEAR1310_PERIP_CLK_CFG,
                         SPEAR1310_GPT2_CLK_SHIFT, SPEAR1310_GPT_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gpt2_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt2_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mclk", 0,
                         SPEAR1310_PERIP2_CLK_ENB, SPEAR1310_GPT2_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "gpt2");
 
-        clk = clk_register_mux(NULL, "gpt3_mux_clk", gpt_parents,
+        clk = clk_register_mux(NULL, "gpt3_mclk", gpt_parents,
                         ARRAY_SIZE(gpt_parents), 0, SPEAR1310_PERIP_CLK_CFG,
                         SPEAR1310_GPT3_CLK_SHIFT, SPEAR1310_GPT_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gpt3_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt3_clk", "gpt3_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt3_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt3_clk", "gpt3_mclk", 0,
                         SPEAR1310_PERIP2_CLK_ENB, SPEAR1310_GPT3_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "gpt3");
 
         /* others */
-        clk = clk_register_aux("uart_synth_clk", "uart_synth_gate_clk",
-                        "vco1div2_clk", 0, SPEAR1310_UART_CLK_SYNT, NULL,
-                        aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "uart_synth_clk", NULL);
-        clk_register_clkdev(clk1, "uart_synth_gate_clk", NULL);
+        clk = clk_register_aux("uart_syn_clk", "uart_syn_gclk", "vco1div2_clk",
+                        0, SPEAR1310_UART_CLK_SYNT, NULL, aux_rtbl,
+                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
+        clk_register_clkdev(clk, "uart_syn_clk", NULL);
+        clk_register_clkdev(clk1, "uart_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "uart0_mux_clk", uart0_parents,
+        clk = clk_register_mux(NULL, "uart0_mclk", uart0_parents,
                         ARRAY_SIZE(uart0_parents), 0, SPEAR1310_PERIP_CLK_CFG,
                         SPEAR1310_UART_CLK_SHIFT, SPEAR1310_UART_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "uart0_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart0_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart0_clk", "uart0_mux_clk", 0,
+        clk = clk_register_gate(NULL, "uart0_clk", "uart0_mclk", 0,
                         SPEAR1310_PERIP1_CLK_ENB, SPEAR1310_UART_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "e0000000.serial");
 
-        clk = clk_register_aux("sdhci_synth_clk", "sdhci_synth_gate_clk",
+        clk = clk_register_aux("sdhci_syn_clk", "sdhci_syn_gclk",
                         "vco1div2_clk", 0, SPEAR1310_SDHCI_CLK_SYNT, NULL,
                         aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "sdhci_synth_clk", NULL);
-        clk_register_clkdev(clk1, "sdhci_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "sdhci_syn_clk", NULL);
+        clk_register_clkdev(clk1, "sdhci_syn_gclk", NULL);
 
-        clk = clk_register_gate(NULL, "sdhci_clk", "sdhci_synth_gate_clk", 0,
+        clk = clk_register_gate(NULL, "sdhci_clk", "sdhci_syn_gclk", 0,
                         SPEAR1310_PERIP1_CLK_ENB, SPEAR1310_SDHCI_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "b3000000.sdhci");
 
-        clk = clk_register_aux("cfxd_synth_clk", "cfxd_synth_gate_clk",
-                        "vco1div2_clk", 0, SPEAR1310_CFXD_CLK_SYNT, NULL,
-                        aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "cfxd_synth_clk", NULL);
-        clk_register_clkdev(clk1, "cfxd_synth_gate_clk", NULL);
+        clk = clk_register_aux("cfxd_syn_clk", "cfxd_syn_gclk", "vco1div2_clk",
+                        0, SPEAR1310_CFXD_CLK_SYNT, NULL, aux_rtbl,
+                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
+        clk_register_clkdev(clk, "cfxd_syn_clk", NULL);
+        clk_register_clkdev(clk1, "cfxd_syn_gclk", NULL);
 
-        clk = clk_register_gate(NULL, "cfxd_clk", "cfxd_synth_gate_clk", 0,
+        clk = clk_register_gate(NULL, "cfxd_clk", "cfxd_syn_gclk", 0,
                         SPEAR1310_PERIP1_CLK_ENB, SPEAR1310_CFXD_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "b2800000.cf");
         clk_register_clkdev(clk, NULL, "arasan_xd");
 
-        clk = clk_register_aux("c3_synth_clk", "c3_synth_gate_clk",
-                        "vco1div2_clk", 0, SPEAR1310_C3_CLK_SYNT, NULL,
-                        aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "c3_synth_clk", NULL);
-        clk_register_clkdev(clk1, "c3_synth_gate_clk", NULL);
+        clk = clk_register_aux("c3_syn_clk", "c3_syn_gclk", "vco1div2_clk",
+                        0, SPEAR1310_C3_CLK_SYNT, NULL, aux_rtbl,
+                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
+        clk_register_clkdev(clk, "c3_syn_clk", NULL);
+        clk_register_clkdev(clk1, "c3_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "c3_mux_clk", c3_parents,
+        clk = clk_register_mux(NULL, "c3_mclk", c3_parents,
                         ARRAY_SIZE(c3_parents), 0, SPEAR1310_PERIP_CLK_CFG,
                         SPEAR1310_C3_CLK_SHIFT, SPEAR1310_C3_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "c3_mux_clk", NULL);
+        clk_register_clkdev(clk, "c3_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "c3_clk", "c3_mux_clk", 0,
+        clk = clk_register_gate(NULL, "c3_clk", "c3_mclk", 0,
                         SPEAR1310_PERIP1_CLK_ENB, SPEAR1310_C3_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "c3");
 
         /* gmac */
-        clk = clk_register_mux(NULL, "gmac_phy_input_mux_clk",
-                        gmac_phy_input_parents,
+        clk = clk_register_mux(NULL, "phy_input_mclk", gmac_phy_input_parents,
                         ARRAY_SIZE(gmac_phy_input_parents), 0,
                         SPEAR1310_GMAC_CLK_CFG,
                         SPEAR1310_GMAC_PHY_INPUT_CLK_SHIFT,
                         SPEAR1310_GMAC_PHY_INPUT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gmac_phy_input_mux_clk", NULL);
+        clk_register_clkdev(clk, "phy_input_mclk", NULL);
 
-        clk = clk_register_aux("gmac_phy_synth_clk", "gmac_phy_synth_gate_clk",
-                        "gmac_phy_input_mux_clk", 0, SPEAR1310_GMAC_CLK_SYNT,
-                        NULL, gmac_rtbl, ARRAY_SIZE(gmac_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "gmac_phy_synth_clk", NULL);
-        clk_register_clkdev(clk1, "gmac_phy_synth_gate_clk", NULL);
+        clk = clk_register_aux("phy_syn_clk", "phy_syn_gclk", "phy_input_mclk",
+                        0, SPEAR1310_GMAC_CLK_SYNT, NULL, gmac_rtbl,
+                        ARRAY_SIZE(gmac_rtbl), &_lock, &clk1);
+        clk_register_clkdev(clk, "phy_syn_clk", NULL);
+        clk_register_clkdev(clk1, "phy_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "gmac_phy_mux_clk", gmac_phy_parents,
+        clk = clk_register_mux(NULL, "phy_mclk", gmac_phy_parents,
                         ARRAY_SIZE(gmac_phy_parents), 0,
                         SPEAR1310_PERIP_CLK_CFG, SPEAR1310_GMAC_PHY_CLK_SHIFT,
                         SPEAR1310_GMAC_PHY_CLK_MASK, 0, &_lock);
         clk_register_clkdev(clk, NULL, "stmmacphy.0");
 
         /* clcd */
-        clk = clk_register_mux(NULL, "clcd_synth_mux_clk", clcd_synth_parents,
+        clk = clk_register_mux(NULL, "clcd_syn_mclk", clcd_synth_parents,
                         ARRAY_SIZE(clcd_synth_parents), 0,
                         SPEAR1310_CLCD_CLK_SYNT, SPEAR1310_CLCD_SYNT_CLK_SHIFT,
                         SPEAR1310_CLCD_SYNT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "clcd_synth_mux_clk", NULL);
+        clk_register_clkdev(clk, "clcd_syn_mclk", NULL);
 
-        clk = clk_register_frac("clcd_synth_clk", "clcd_synth_mux_clk", 0,
+        clk = clk_register_frac("clcd_syn_clk", "clcd_syn_mclk", 0,
                         SPEAR1310_CLCD_CLK_SYNT, clcd_rtbl,
                         ARRAY_SIZE(clcd_rtbl), &_lock);
-        clk_register_clkdev(clk, "clcd_synth_clk", NULL);
+        clk_register_clkdev(clk, "clcd_syn_clk", NULL);
 
-        clk = clk_register_mux(NULL, "clcd_pixel_mux_clk", clcd_pixel_parents,
+        clk = clk_register_mux(NULL, "clcd_pixel_mclk", clcd_pixel_parents,
                         ARRAY_SIZE(clcd_pixel_parents), 0,
                         SPEAR1310_PERIP_CLK_CFG, SPEAR1310_CLCD_CLK_SHIFT,
                         SPEAR1310_CLCD_CLK_MASK, 0, &_lock);
         clk_register_clkdev(clk, "clcd_pixel_clk", NULL);
 
-        clk = clk_register_gate(NULL, "clcd_clk", "clcd_pixel_mux_clk", 0,
+        clk = clk_register_gate(NULL, "clcd_clk", "clcd_pixel_mclk", 0,
                         SPEAR1310_PERIP1_CLK_ENB, SPEAR1310_CLCD_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, "clcd_clk", NULL);
 
         /* i2s */
-        clk = clk_register_mux(NULL, "i2s_src_mux_clk", i2s_src_parents,
+        clk = clk_register_mux(NULL, "i2s_src_mclk", i2s_src_parents,
                         ARRAY_SIZE(i2s_src_parents), 0, SPEAR1310_I2S_CLK_CFG,
                         SPEAR1310_I2S_SRC_CLK_SHIFT, SPEAR1310_I2S_SRC_CLK_MASK,
                         0, &_lock);
         clk_register_clkdev(clk, "i2s_src_clk", NULL);
 
-        clk = clk_register_aux("i2s_prs1_clk", NULL, "i2s_src_mux_clk", 0,
+        clk = clk_register_aux("i2s_prs1_clk", NULL, "i2s_src_mclk", 0,
                         SPEAR1310_I2S_CLK_CFG, &i2s_prs1_masks, i2s_prs1_rtbl,
                         ARRAY_SIZE(i2s_prs1_rtbl), &_lock, NULL);
         clk_register_clkdev(clk, "i2s_prs1_clk", NULL);
 
-        clk = clk_register_mux(NULL, "i2s_ref_mux_clk", i2s_ref_parents,
+        clk = clk_register_mux(NULL, "i2s_ref_mclk", i2s_ref_parents,
                         ARRAY_SIZE(i2s_ref_parents), 0, SPEAR1310_I2S_CLK_CFG,
                         SPEAR1310_I2S_REF_SHIFT, SPEAR1310_I2S_REF_SEL_MASK, 0,
                         &_lock);
         clk_register_clkdev(clk, "i2s_ref_clk", NULL);
 
-        clk = clk_register_gate(NULL, "i2s_ref_pad_clk", "i2s_ref_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2s_ref_pad_clk", "i2s_ref_mclk", 0,
                         SPEAR1310_PERIP2_CLK_ENB, SPEAR1310_I2S_REF_PAD_CLK_ENB,
                         0, &_lock);
         clk_register_clkdev(clk, "i2s_ref_pad_clk", NULL);
 
-        clk = clk_register_aux("i2s_sclk_clk", "i2s_sclk_gate_clk",
+        clk = clk_register_aux("i2s_sclk_clk", "i2s_sclk_gclk",
                         "i2s_ref_pad_clk", 0, SPEAR1310_I2S_CLK_CFG,
                         &i2s_sclk_masks, i2s_sclk_rtbl,
                         ARRAY_SIZE(i2s_sclk_rtbl), &_lock, &clk1);
         clk_register_clkdev(clk, "i2s_sclk_clk", NULL);
-        clk_register_clkdev(clk1, "i2s_sclk_gate_clk", NULL);
+        clk_register_clkdev(clk1, "i2s_sclk_gclk", NULL);
 
         /* clock derived from ahb clk */
         clk = clk_register_gate(NULL, "i2c0_clk", "ahb_clk", 0,
@@ -747,13 +745,13 @@ void __init spear1310_clk_init(void)
                         &_lock);
         clk_register_clkdev(clk, "sysram1_clk", NULL);
 
-        clk = clk_register_aux("adc_synth_clk", "adc_synth_gate_clk", "ahb_clk",
+        clk = clk_register_aux("adc_syn_clk", "adc_syn_gclk", "ahb_clk",
                         0, SPEAR1310_ADC_CLK_SYNT, NULL, adc_rtbl,
                         ARRAY_SIZE(adc_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "adc_synth_clk", NULL);
-        clk_register_clkdev(clk1, "adc_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "adc_syn_clk", NULL);
+        clk_register_clkdev(clk1, "adc_syn_gclk", NULL);
 
-        clk = clk_register_gate(NULL, "adc_clk", "adc_synth_gate_clk", 0,
+        clk = clk_register_gate(NULL, "adc_clk", "adc_syn_gclk", 0,
                         SPEAR1310_PERIP1_CLK_ENB, SPEAR1310_ADC_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "adc_clk");
@@ -790,37 +788,37 @@ void __init spear1310_clk_init(void)
         clk_register_clkdev(clk, NULL, "e0300000.kbd");
 
         /* RAS clks */
-        clk = clk_register_mux(NULL, "gen_synth0_1_mux_clk",
-                        gen_synth0_1_parents, ARRAY_SIZE(gen_synth0_1_parents),
-                        0, SPEAR1310_PLL_CFG, SPEAR1310_RAS_SYNT0_1_CLK_SHIFT,
+        clk = clk_register_mux(NULL, "gen_syn0_1_mclk", gen_synth0_1_parents,
+                        ARRAY_SIZE(gen_synth0_1_parents), 0, SPEAR1310_PLL_CFG,
+                        SPEAR1310_RAS_SYNT0_1_CLK_SHIFT,
                         SPEAR1310_RAS_SYNT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gen_synth0_1_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn0_1_clk", NULL);
 
-        clk = clk_register_mux(NULL, "gen_synth2_3_mux_clk",
-                        gen_synth2_3_parents, ARRAY_SIZE(gen_synth2_3_parents),
-                        0, SPEAR1310_PLL_CFG, SPEAR1310_RAS_SYNT2_3_CLK_SHIFT,
+        clk = clk_register_mux(NULL, "gen_syn2_3_mclk", gen_synth2_3_parents,
+                        ARRAY_SIZE(gen_synth2_3_parents), 0, SPEAR1310_PLL_CFG,
+                        SPEAR1310_RAS_SYNT2_3_CLK_SHIFT,
                         SPEAR1310_RAS_SYNT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gen_synth2_3_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn2_3_clk", NULL);
 
-        clk = clk_register_frac("gen_synth0_clk", "gen_synth0_1_clk", 0,
+        clk = clk_register_frac("gen_syn0_clk", "gen_syn0_1_clk", 0,
                         SPEAR1310_RAS_CLK_SYNT0, gen_rtbl, ARRAY_SIZE(gen_rtbl),
                         &_lock);
-        clk_register_clkdev(clk, "gen_synth0_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn0_clk", NULL);
 
-        clk = clk_register_frac("gen_synth1_clk", "gen_synth0_1_clk", 0,
+        clk = clk_register_frac("gen_syn1_clk", "gen_syn0_1_clk", 0,
                         SPEAR1310_RAS_CLK_SYNT1, gen_rtbl, ARRAY_SIZE(gen_rtbl),
                         &_lock);
-        clk_register_clkdev(clk, "gen_synth1_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn1_clk", NULL);
 
-        clk = clk_register_frac("gen_synth2_clk", "gen_synth2_3_clk", 0,
+        clk = clk_register_frac("gen_syn2_clk", "gen_syn2_3_clk", 0,
                         SPEAR1310_RAS_CLK_SYNT2, gen_rtbl, ARRAY_SIZE(gen_rtbl),
                         &_lock);
-        clk_register_clkdev(clk, "gen_synth2_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn2_clk", NULL);
 
-        clk = clk_register_frac("gen_synth3_clk", "gen_synth2_3_clk", 0,
+        clk = clk_register_frac("gen_syn3_clk", "gen_syn2_3_clk", 0,
                         SPEAR1310_RAS_CLK_SYNT3, gen_rtbl, ARRAY_SIZE(gen_rtbl),
                         &_lock);
-        clk_register_clkdev(clk, "gen_synth3_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn3_clk", NULL);
 
         clk = clk_register_gate(NULL, "ras_osc_24m_clk", "osc_24m_clk", 0,
                         SPEAR1310_RAS_CLK_ENB, SPEAR1310_OSC_24M_CLK_ENB, 0,
@@ -847,7 +845,7 @@ void __init spear1310_clk_init(void)
                         &_lock);
         clk_register_clkdev(clk, "ras_pll3_clk", NULL);
 
-        clk = clk_register_gate(NULL, "ras_tx125_clk", "gmii_125m_pad_clk", 0,
+        clk = clk_register_gate(NULL, "ras_tx125_clk", "gmii_pad_clk", 0,
                         SPEAR1310_RAS_CLK_ENB, SPEAR1310_C125M_PAD_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, "ras_tx125_clk", NULL);
@@ -912,7 +910,7 @@ void __init spear1310_clk_init(void)
                         &_lock);
         clk_register_clkdev(clk, NULL, "5c700000.eth");
 
-        clk = clk_register_mux(NULL, "smii_rgmii_phy_mux_clk",
+        clk = clk_register_mux(NULL, "smii_rgmii_phy_mclk",
                         smii_rgmii_phy_parents,
                         ARRAY_SIZE(smii_rgmii_phy_parents), 0,
                         SPEAR1310_RAS_CTRL_REG1,
@@ -922,184 +920,184 @@ void __init spear1310_clk_init(void)
         clk_register_clkdev(clk, NULL, "stmmacphy.2");
         clk_register_clkdev(clk, NULL, "stmmacphy.4");
 
-        clk = clk_register_mux(NULL, "rmii_phy_mux_clk", rmii_phy_parents,
+        clk = clk_register_mux(NULL, "rmii_phy_mclk", rmii_phy_parents,
                         ARRAY_SIZE(rmii_phy_parents), 0,
                         SPEAR1310_RAS_CTRL_REG1, SPEAR1310_RMII_PHY_CLK_SHIFT,
                         SPEAR1310_PHY_CLK_MASK, 0, &_lock);
         clk_register_clkdev(clk, NULL, "stmmacphy.3");
 
-        clk = clk_register_mux(NULL, "uart1_mux_clk", uart_parents,
+        clk = clk_register_mux(NULL, "uart1_mclk", uart_parents,
                         ARRAY_SIZE(uart_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_UART1_CLK_SHIFT, SPEAR1310_RAS_UART_CLK_MASK,
                         0, &_lock);
-        clk_register_clkdev(clk, "uart1_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart1_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart1_clk", "uart1_mux_clk", 0,
+        clk = clk_register_gate(NULL, "uart1_clk", "uart1_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_UART1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5c800000.serial");
 
-        clk = clk_register_mux(NULL, "uart2_mux_clk", uart_parents,
+        clk = clk_register_mux(NULL, "uart2_mclk", uart_parents,
                         ARRAY_SIZE(uart_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_UART2_CLK_SHIFT, SPEAR1310_RAS_UART_CLK_MASK,
                         0, &_lock);
-        clk_register_clkdev(clk, "uart2_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart2_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart2_clk", "uart2_mux_clk", 0,
+        clk = clk_register_gate(NULL, "uart2_clk", "uart2_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_UART2_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5c900000.serial");
 
-        clk = clk_register_mux(NULL, "uart3_mux_clk", uart_parents,
+        clk = clk_register_mux(NULL, "uart3_mclk", uart_parents,
                         ARRAY_SIZE(uart_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_UART3_CLK_SHIFT, SPEAR1310_RAS_UART_CLK_MASK,
                         0, &_lock);
-        clk_register_clkdev(clk, "uart3_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart3_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart3_clk", "uart3_mux_clk", 0,
+        clk = clk_register_gate(NULL, "uart3_clk", "uart3_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_UART3_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5ca00000.serial");
 
-        clk = clk_register_mux(NULL, "uart4_mux_clk", uart_parents,
+        clk = clk_register_mux(NULL, "uart4_mclk", uart_parents,
                         ARRAY_SIZE(uart_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_UART4_CLK_SHIFT, SPEAR1310_RAS_UART_CLK_MASK,
                         0, &_lock);
-        clk_register_clkdev(clk, "uart4_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart4_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart4_clk", "uart4_mux_clk", 0,
+        clk = clk_register_gate(NULL, "uart4_clk", "uart4_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_UART4_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5cb00000.serial");
 
-        clk = clk_register_mux(NULL, "uart5_mux_clk", uart_parents,
+        clk = clk_register_mux(NULL, "uart5_mclk", uart_parents,
                         ARRAY_SIZE(uart_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_UART5_CLK_SHIFT, SPEAR1310_RAS_UART_CLK_MASK,
                         0, &_lock);
-        clk_register_clkdev(clk, "uart5_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart5_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart5_clk", "uart5_mux_clk", 0,
+        clk = clk_register_gate(NULL, "uart5_clk", "uart5_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_UART5_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5cc00000.serial");
 
-        clk = clk_register_mux(NULL, "i2c1_mux_clk", i2c_parents,
+        clk = clk_register_mux(NULL, "i2c1_mclk", i2c_parents,
                         ARRAY_SIZE(i2c_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_I2C1_CLK_SHIFT, SPEAR1310_I2C_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "i2c1_mux_clk", NULL);
+        clk_register_clkdev(clk, "i2c1_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "i2c1_clk", "i2c1_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2c1_clk", "i2c1_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_I2C1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5cd00000.i2c");
 
-        clk = clk_register_mux(NULL, "i2c2_mux_clk", i2c_parents,
+        clk = clk_register_mux(NULL, "i2c2_mclk", i2c_parents,
                         ARRAY_SIZE(i2c_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_I2C2_CLK_SHIFT, SPEAR1310_I2C_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "i2c2_mux_clk", NULL);
+        clk_register_clkdev(clk, "i2c2_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "i2c2_clk", "i2c2_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2c2_clk", "i2c2_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_I2C2_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5ce00000.i2c");
 
-        clk = clk_register_mux(NULL, "i2c3_mux_clk", i2c_parents,
+        clk = clk_register_mux(NULL, "i2c3_mclk", i2c_parents,
                         ARRAY_SIZE(i2c_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_I2C3_CLK_SHIFT, SPEAR1310_I2C_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "i2c3_mux_clk", NULL);
+        clk_register_clkdev(clk, "i2c3_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "i2c3_clk", "i2c3_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2c3_clk", "i2c3_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_I2C3_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5cf00000.i2c");
 
-        clk = clk_register_mux(NULL, "i2c4_mux_clk", i2c_parents,
+        clk = clk_register_mux(NULL, "i2c4_mclk", i2c_parents,
                         ARRAY_SIZE(i2c_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_I2C4_CLK_SHIFT, SPEAR1310_I2C_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "i2c4_mux_clk", NULL);
+        clk_register_clkdev(clk, "i2c4_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "i2c4_clk", "i2c4_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2c4_clk", "i2c4_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_I2C4_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5d000000.i2c");
 
-        clk = clk_register_mux(NULL, "i2c5_mux_clk", i2c_parents,
+        clk = clk_register_mux(NULL, "i2c5_mclk", i2c_parents,
                         ARRAY_SIZE(i2c_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_I2C5_CLK_SHIFT, SPEAR1310_I2C_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "i2c5_mux_clk", NULL);
+        clk_register_clkdev(clk, "i2c5_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "i2c5_clk", "i2c5_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2c5_clk", "i2c5_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_I2C5_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5d100000.i2c");
 
-        clk = clk_register_mux(NULL, "i2c6_mux_clk", i2c_parents,
+        clk = clk_register_mux(NULL, "i2c6_mclk", i2c_parents,
                         ARRAY_SIZE(i2c_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_I2C6_CLK_SHIFT, SPEAR1310_I2C_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "i2c6_mux_clk", NULL);
+        clk_register_clkdev(clk, "i2c6_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "i2c6_clk", "i2c6_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2c6_clk", "i2c6_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_I2C6_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5d200000.i2c");
 
-        clk = clk_register_mux(NULL, "i2c7_mux_clk", i2c_parents,
+        clk = clk_register_mux(NULL, "i2c7_mclk", i2c_parents,
                         ARRAY_SIZE(i2c_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_I2C7_CLK_SHIFT, SPEAR1310_I2C_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "i2c7_mux_clk", NULL);
+        clk_register_clkdev(clk, "i2c7_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "i2c7_clk", "i2c7_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2c7_clk", "i2c7_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_I2C7_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5d300000.i2c");
 
-        clk = clk_register_mux(NULL, "ssp1_mux_clk", ssp1_parents,
+        clk = clk_register_mux(NULL, "ssp1_mclk", ssp1_parents,
                         ARRAY_SIZE(ssp1_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_SSP1_CLK_SHIFT, SPEAR1310_SSP1_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "ssp1_mux_clk", NULL);
+        clk_register_clkdev(clk, "ssp1_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "ssp1_clk", "ssp1_mux_clk", 0,
+        clk = clk_register_gate(NULL, "ssp1_clk", "ssp1_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_SSP1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "5d400000.spi");
 
-        clk = clk_register_mux(NULL, "pci_mux_clk", pci_parents,
+        clk = clk_register_mux(NULL, "pci_mclk", pci_parents,
                         ARRAY_SIZE(pci_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_PCI_CLK_SHIFT, SPEAR1310_PCI_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "pci_mux_clk", NULL);
+        clk_register_clkdev(clk, "pci_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "pci_clk", "pci_mux_clk", 0,
+        clk = clk_register_gate(NULL, "pci_clk", "pci_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_PCI_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "pci");
 
-        clk = clk_register_mux(NULL, "tdm1_mux_clk", tdm_parents,
+        clk = clk_register_mux(NULL, "tdm1_mclk", tdm_parents,
                         ARRAY_SIZE(tdm_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_TDM1_CLK_SHIFT, SPEAR1310_TDM_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "tdm1_mux_clk", NULL);
+        clk_register_clkdev(clk, "tdm1_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "tdm1_clk", "tdm1_mux_clk", 0,
+        clk = clk_register_gate(NULL, "tdm1_clk", "tdm1_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_TDM1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "tdm_hdlc.0");
 
-        clk = clk_register_mux(NULL, "tdm2_mux_clk", tdm_parents,
+        clk = clk_register_mux(NULL, "tdm2_mclk", tdm_parents,
                         ARRAY_SIZE(tdm_parents), 0, SPEAR1310_RAS_CTRL_REG0,
                         SPEAR1310_TDM2_CLK_SHIFT, SPEAR1310_TDM_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "tdm2_mux_clk", NULL);
+        clk_register_clkdev(clk, "tdm2_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "tdm2_clk", "tdm2_mux_clk", 0,
+        clk = clk_register_gate(NULL, "tdm2_clk", "tdm2_mclk", 0,
                         SPEAR1310_RAS_SW_CLK_CTRL, SPEAR1310_TDM2_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "tdm_hdlc.1");
diff --git a/drivers/clk/spear/spear1340_clock.c b/drivers/clk/spear/spear1340_clock.c
index e3ea72162236..2352cee7f645 100644
--- a/drivers/clk/spear/spear1340_clock.c
+++ b/drivers/clk/spear/spear1340_clock.c
@@ -369,27 +369,25 @@ static struct frac_rate_tbl gen_rtbl[] = {
 
 /* clock parents */
 static const char *vco_parents[] = { "osc_24m_clk", "osc_25m_clk", };
-static const char *sys_parents[] = { "none", "pll1_clk", "none", "none",
-        "sys_synth_clk", "none", "pll2_clk", "pll3_clk", };
-static const char *ahb_parents[] = { "cpu_div3_clk", "amba_synth_clk", };
+static const char *sys_parents[] = { "pll1_clk", "pll1_clk", "pll1_clk",
+        "pll1_clk", "sys_synth_clk", "sys_synth_clk", "pll2_clk", "pll3_clk", };
+static const char *ahb_parents[] = { "cpu_div3_clk", "amba_syn_clk", };
 static const char *gpt_parents[] = { "osc_24m_clk", "apb_clk", };
 static const char *uart0_parents[] = { "pll5_clk", "osc_24m_clk",
-        "uart0_synth_gate_clk", };
+        "uart0_syn_gclk", };
 static const char *uart1_parents[] = { "pll5_clk", "osc_24m_clk",
-        "uart1_synth_gate_clk", };
-static const char *c3_parents[] = { "pll5_clk", "c3_synth_gate_clk", };
-static const char *gmac_phy_input_parents[] = { "gmii_125m_pad_clk", "pll2_clk",
+        "uart1_syn_gclk", };
+static const char *c3_parents[] = { "pll5_clk", "c3_syn_gclk", };
+static const char *gmac_phy_input_parents[] = { "gmii_pad_clk", "pll2_clk",
         "osc_25m_clk", };
-static const char *gmac_phy_parents[] = { "gmac_phy_input_mux_clk",
-        "gmac_phy_synth_gate_clk", };
+static const char *gmac_phy_parents[] = { "phy_input_mclk", "phy_syn_gclk", };
 static const char *clcd_synth_parents[] = { "vco1div4_clk", "pll2_clk", };
-static const char *clcd_pixel_parents[] = { "pll5_clk", "clcd_synth_clk", };
+static const char *clcd_pixel_parents[] = { "pll5_clk", "clcd_syn_clk", };
 static const char *i2s_src_parents[] = { "vco1div2_clk", "pll2_clk", "pll3_clk",
         "i2s_src_pad_clk", };
-static const char *i2s_ref_parents[] = { "i2s_src_mux_clk", "i2s_prs1_clk", };
-static const char *spdif_out_parents[] = { "i2s_src_pad_clk", "gen_synth2_clk",
-};
-static const char *spdif_in_parents[] = { "pll2_clk", "gen_synth3_clk", };
+static const char *i2s_ref_parents[] = { "i2s_src_mclk", "i2s_prs1_clk", };
+static const char *spdif_out_parents[] = { "i2s_src_pad_clk", "gen_syn2_clk", };
+static const char *spdif_in_parents[] = { "pll2_clk", "gen_syn3_clk", };
 
 static const char *gen_synth0_1_parents[] = { "vco1div4_clk", "vco3div2_clk",
         "pll3_clk", };
@@ -415,9 +413,9 @@ void __init spear1340_clk_init(void)
                         25000000);
         clk_register_clkdev(clk, "osc_25m_clk", NULL);
 
-        clk = clk_register_fixed_rate(NULL, "gmii_125m_pad_clk", NULL,
-                        CLK_IS_ROOT, 125000000);
-        clk_register_clkdev(clk, "gmii_125m_pad_clk", NULL);
+        clk = clk_register_fixed_rate(NULL, "gmii_pad_clk", NULL, CLK_IS_ROOT,
+                        125000000);
+        clk_register_clkdev(clk, "gmii_pad_clk", NULL);
 
         clk = clk_register_fixed_rate(NULL, "i2s_src_pad_clk", NULL,
                         CLK_IS_ROOT, 12288000);
@@ -431,35 +429,35 @@ void __init spear1340_clk_init(void)
 
         /* clock derived from 24 or 25 MHz osc clk */
         /* vco-pll */
-        clk = clk_register_mux(NULL, "vco1_mux_clk", vco_parents,
+        clk = clk_register_mux(NULL, "vco1_mclk", vco_parents,
                         ARRAY_SIZE(vco_parents), 0, SPEAR1340_PLL_CFG,
                         SPEAR1340_PLL1_CLK_SHIFT, SPEAR1340_PLL_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "vco1_mux_clk", NULL);
-        clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, "vco1_mux_clk",
-                        0, SPEAR1340_PLL1_CTR, SPEAR1340_PLL1_FRQ, pll_rtbl,
+        clk_register_clkdev(clk, "vco1_mclk", NULL);
+        clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, "vco1_mclk", 0,
+                        SPEAR1340_PLL1_CTR, SPEAR1340_PLL1_FRQ, pll_rtbl,
                         ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL);
         clk_register_clkdev(clk, "vco1_clk", NULL);
         clk_register_clkdev(clk1, "pll1_clk", NULL);
 
-        clk = clk_register_mux(NULL, "vco2_mux_clk", vco_parents,
+        clk = clk_register_mux(NULL, "vco2_mclk", vco_parents,
                         ARRAY_SIZE(vco_parents), 0, SPEAR1340_PLL_CFG,
                         SPEAR1340_PLL2_CLK_SHIFT, SPEAR1340_PLL_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "vco2_mux_clk", NULL);
-        clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, "vco2_mux_clk",
-                        0, SPEAR1340_PLL2_CTR, SPEAR1340_PLL2_FRQ, pll_rtbl,
+        clk_register_clkdev(clk, "vco2_mclk", NULL);
+        clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, "vco2_mclk", 0,
+                        SPEAR1340_PLL2_CTR, SPEAR1340_PLL2_FRQ, pll_rtbl,
                         ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL);
         clk_register_clkdev(clk, "vco2_clk", NULL);
         clk_register_clkdev(clk1, "pll2_clk", NULL);
 
-        clk = clk_register_mux(NULL, "vco3_mux_clk", vco_parents,
+        clk = clk_register_mux(NULL, "vco3_mclk", vco_parents,
                         ARRAY_SIZE(vco_parents), 0, SPEAR1340_PLL_CFG,
                         SPEAR1340_PLL3_CLK_SHIFT, SPEAR1340_PLL_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "vco3_mux_clk", NULL);
-        clk = clk_register_vco_pll("vco3_clk", "pll3_clk", NULL, "vco3_mux_clk",
-                        0, SPEAR1340_PLL3_CTR, SPEAR1340_PLL3_FRQ, pll_rtbl,
+        clk_register_clkdev(clk, "vco3_mclk", NULL);
+        clk = clk_register_vco_pll("vco3_clk", "pll3_clk", NULL, "vco3_mclk", 0,
+                        SPEAR1340_PLL3_CTR, SPEAR1340_PLL3_FRQ, pll_rtbl,
                         ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL);
         clk_register_clkdev(clk, "vco3_clk", NULL);
         clk_register_clkdev(clk1, "pll3_clk", NULL);
@@ -498,7 +496,7 @@ void __init spear1340_clk_init(void)
         /* peripherals */
         clk_register_fixed_factor(NULL, "thermal_clk", "osc_24m_clk", 0, 1,
                         128);
-        clk = clk_register_gate(NULL, "thermal_gate_clk", "thermal_clk", 0,
+        clk = clk_register_gate(NULL, "thermal_gclk", "thermal_clk", 0,
                         SPEAR1340_PERIP2_CLK_ENB, SPEAR1340_THSENS_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "spear_thermal");
@@ -509,23 +507,23 @@ void __init spear1340_clk_init(void)
         clk_register_clkdev(clk, "ddr_clk", NULL);
 
         /* clock derived from pll1 clk */
-        clk = clk_register_frac("sys_synth_clk", "vco1div2_clk", 0,
+        clk = clk_register_frac("sys_syn_clk", "vco1div2_clk", 0,
                         SPEAR1340_SYS_CLK_SYNT, sys_synth_rtbl,
                         ARRAY_SIZE(sys_synth_rtbl), &_lock);
-        clk_register_clkdev(clk, "sys_synth_clk", NULL);
+        clk_register_clkdev(clk, "sys_syn_clk", NULL);
 
-        clk = clk_register_frac("amba_synth_clk", "vco1div2_clk", 0,
+        clk = clk_register_frac("amba_syn_clk", "vco1div2_clk", 0,
                         SPEAR1340_AMBA_CLK_SYNT, amba_synth_rtbl,
                         ARRAY_SIZE(amba_synth_rtbl), &_lock);
-        clk_register_clkdev(clk, "amba_synth_clk", NULL);
+        clk_register_clkdev(clk, "amba_syn_clk", NULL);
 
-        clk = clk_register_mux(NULL, "sys_mux_clk", sys_parents,
+        clk = clk_register_mux(NULL, "sys_mclk", sys_parents,
                         ARRAY_SIZE(sys_parents), 0, SPEAR1340_SYS_CLK_CTRL,
                         SPEAR1340_SCLK_SRC_SEL_SHIFT,
                         SPEAR1340_SCLK_SRC_SEL_MASK, 0, &_lock);
         clk_register_clkdev(clk, "sys_clk", NULL);
 
-        clk = clk_register_fixed_factor(NULL, "cpu_clk", "sys_mux_clk", 0, 1,
+        clk = clk_register_fixed_factor(NULL, "cpu_clk", "sys_mclk", 0, 1,
                         2);
         clk_register_clkdev(clk, "cpu_clk", NULL);
 
@@ -548,194 +546,193 @@ void __init spear1340_clk_init(void)
         clk_register_clkdev(clk, "apb_clk", NULL);
 
         /* gpt clocks */
-        clk = clk_register_mux(NULL, "gpt0_mux_clk", gpt_parents,
+        clk = clk_register_mux(NULL, "gpt0_mclk", gpt_parents,
                         ARRAY_SIZE(gpt_parents), 0, SPEAR1340_PERIP_CLK_CFG,
                         SPEAR1340_GPT0_CLK_SHIFT, SPEAR1340_GPT_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gpt0_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt0_clk", "gpt0_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt0_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt0_clk", "gpt0_mclk", 0,
                         SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_GPT0_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "gpt0");
 
-        clk = clk_register_mux(NULL, "gpt1_mux_clk", gpt_parents,
+        clk = clk_register_mux(NULL, "gpt1_mclk", gpt_parents,
                         ARRAY_SIZE(gpt_parents), 0, SPEAR1340_PERIP_CLK_CFG,
                         SPEAR1340_GPT1_CLK_SHIFT, SPEAR1340_GPT_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gpt1_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt1_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mclk", 0,
                         SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_GPT1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "gpt1");
 
-        clk = clk_register_mux(NULL, "gpt2_mux_clk", gpt_parents,
+        clk = clk_register_mux(NULL, "gpt2_mclk", gpt_parents,
                         ARRAY_SIZE(gpt_parents), 0, SPEAR1340_PERIP_CLK_CFG,
                         SPEAR1340_GPT2_CLK_SHIFT, SPEAR1340_GPT_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gpt2_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt2_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mclk", 0,
                         SPEAR1340_PERIP2_CLK_ENB, SPEAR1340_GPT2_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "gpt2");
 
-        clk = clk_register_mux(NULL, "gpt3_mux_clk", gpt_parents,
+        clk = clk_register_mux(NULL, "gpt3_mclk", gpt_parents,
                         ARRAY_SIZE(gpt_parents), 0, SPEAR1340_PERIP_CLK_CFG,
                         SPEAR1340_GPT3_CLK_SHIFT, SPEAR1340_GPT_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gpt3_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt3_clk", "gpt3_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt3_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt3_clk", "gpt3_mclk", 0,
                         SPEAR1340_PERIP2_CLK_ENB, SPEAR1340_GPT3_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "gpt3");
 
         /* others */
-        clk = clk_register_aux("uart0_synth_clk", "uart0_synth_gate_clk",
+        clk = clk_register_aux("uart0_syn_clk", "uart0_syn_gclk",
                         "vco1div2_clk", 0, SPEAR1340_UART0_CLK_SYNT, NULL,
                         aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "uart0_synth_clk", NULL);
-        clk_register_clkdev(clk1, "uart0_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "uart0_syn_clk", NULL);
+        clk_register_clkdev(clk1, "uart0_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "uart0_mux_clk", uart0_parents,
+        clk = clk_register_mux(NULL, "uart0_mclk", uart0_parents,
                         ARRAY_SIZE(uart0_parents), 0, SPEAR1340_PERIP_CLK_CFG,
                         SPEAR1340_UART0_CLK_SHIFT, SPEAR1340_UART_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "uart0_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart0_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart0_clk", "uart0_mux_clk", 0,
+        clk = clk_register_gate(NULL, "uart0_clk", "uart0_mclk", 0,
                         SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_UART0_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "e0000000.serial");
 
-        clk = clk_register_aux("uart1_synth_clk", "uart1_synth_gate_clk",
+        clk = clk_register_aux("uart1_syn_clk", "uart1_syn_gclk",
                         "vco1div2_clk", 0, SPEAR1340_UART1_CLK_SYNT, NULL,
                         aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "uart1_synth_clk", NULL);
-        clk_register_clkdev(clk1, "uart1_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "uart1_syn_clk", NULL);
+        clk_register_clkdev(clk1, "uart1_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "uart1_mux_clk", uart1_parents,
+        clk = clk_register_mux(NULL, "uart1_mclk", uart1_parents,
                         ARRAY_SIZE(uart1_parents), 0, SPEAR1340_PERIP_CLK_CFG,
                         SPEAR1340_UART1_CLK_SHIFT, SPEAR1340_UART_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "uart1_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart1_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart1_clk", "uart1_mux_clk", 0,
-                        SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_UART1_CLK_ENB, 0,
+        clk = clk_register_gate(NULL, "uart1_clk", "uart1_mclk", 0,
+                        SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_UART1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "b4100000.serial");
 
-        clk = clk_register_aux("sdhci_synth_clk", "sdhci_synth_gate_clk",
+        clk = clk_register_aux("sdhci_syn_clk", "sdhci_syn_gclk",
                         "vco1div2_clk", 0, SPEAR1340_SDHCI_CLK_SYNT, NULL,
                         aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "sdhci_synth_clk", NULL);
-        clk_register_clkdev(clk1, "sdhci_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "sdhci_syn_clk", NULL);
+        clk_register_clkdev(clk1, "sdhci_syn_gclk", NULL);
 
-        clk = clk_register_gate(NULL, "sdhci_clk", "sdhci_synth_gate_clk", 0,
+        clk = clk_register_gate(NULL, "sdhci_clk", "sdhci_syn_gclk", 0,
                         SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_SDHCI_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "b3000000.sdhci");
 
-        clk = clk_register_aux("cfxd_synth_clk", "cfxd_synth_gate_clk",
-                        "vco1div2_clk", 0, SPEAR1340_CFXD_CLK_SYNT, NULL,
-                        aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "cfxd_synth_clk", NULL);
-        clk_register_clkdev(clk1, "cfxd_synth_gate_clk", NULL);
+        clk = clk_register_aux("cfxd_syn_clk", "cfxd_syn_gclk", "vco1div2_clk",
+                        0, SPEAR1340_CFXD_CLK_SYNT, NULL, aux_rtbl,
+                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
+        clk_register_clkdev(clk, "cfxd_syn_clk", NULL);
+        clk_register_clkdev(clk1, "cfxd_syn_gclk", NULL);
 
-        clk = clk_register_gate(NULL, "cfxd_clk", "cfxd_synth_gate_clk", 0,
+        clk = clk_register_gate(NULL, "cfxd_clk", "cfxd_syn_gclk", 0,
                         SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_CFXD_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "b2800000.cf");
         clk_register_clkdev(clk, NULL, "arasan_xd");
 
-        clk = clk_register_aux("c3_synth_clk", "c3_synth_gate_clk",
-                        "vco1div2_clk", 0, SPEAR1340_C3_CLK_SYNT, NULL,
-                        aux_rtbl, ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "c3_synth_clk", NULL);
-        clk_register_clkdev(clk1, "c3_synth_gate_clk", NULL);
+        clk = clk_register_aux("c3_syn_clk", "c3_syn_gclk", "vco1div2_clk", 0,
+                        SPEAR1340_C3_CLK_SYNT, NULL, aux_rtbl,
+                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
+        clk_register_clkdev(clk, "c3_syn_clk", NULL);
+        clk_register_clkdev(clk1, "c3_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "c3_mux_clk", c3_parents,
+        clk = clk_register_mux(NULL, "c3_mclk", c3_parents,
                         ARRAY_SIZE(c3_parents), 0, SPEAR1340_PERIP_CLK_CFG,
                         SPEAR1340_C3_CLK_SHIFT, SPEAR1340_C3_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "c3_mux_clk", NULL);
+        clk_register_clkdev(clk, "c3_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "c3_clk", "c3_mux_clk", 0,
+        clk = clk_register_gate(NULL, "c3_clk", "c3_mclk", 0,
                         SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_C3_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "c3");
 
         /* gmac */
-        clk = clk_register_mux(NULL, "gmac_phy_input_mux_clk",
-                        gmac_phy_input_parents,
+        clk = clk_register_mux(NULL, "phy_input_mclk", gmac_phy_input_parents,
                         ARRAY_SIZE(gmac_phy_input_parents), 0,
                         SPEAR1340_GMAC_CLK_CFG,
                         SPEAR1340_GMAC_PHY_INPUT_CLK_SHIFT,
                         SPEAR1340_GMAC_PHY_INPUT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gmac_phy_input_mux_clk", NULL);
+        clk_register_clkdev(clk, "phy_input_mclk", NULL);
 
-        clk = clk_register_aux("gmac_phy_synth_clk", "gmac_phy_synth_gate_clk",
-                        "gmac_phy_input_mux_clk", 0, SPEAR1340_GMAC_CLK_SYNT,
-                        NULL, gmac_rtbl, ARRAY_SIZE(gmac_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "gmac_phy_synth_clk", NULL);
-        clk_register_clkdev(clk1, "gmac_phy_synth_gate_clk", NULL);
+        clk = clk_register_aux("phy_syn_clk", "phy_syn_gclk", "phy_input_mclk",
+                        0, SPEAR1340_GMAC_CLK_SYNT, NULL, gmac_rtbl,
+                        ARRAY_SIZE(gmac_rtbl), &_lock, &clk1);
+        clk_register_clkdev(clk, "phy_syn_clk", NULL);
+        clk_register_clkdev(clk1, "phy_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "gmac_phy_mux_clk", gmac_phy_parents,
+        clk = clk_register_mux(NULL, "phy_mclk", gmac_phy_parents,
                         ARRAY_SIZE(gmac_phy_parents), 0,
                         SPEAR1340_PERIP_CLK_CFG, SPEAR1340_GMAC_PHY_CLK_SHIFT,
                         SPEAR1340_GMAC_PHY_CLK_MASK, 0, &_lock);
         clk_register_clkdev(clk, NULL, "stmmacphy.0");
 
         /* clcd */
-        clk = clk_register_mux(NULL, "clcd_synth_mux_clk", clcd_synth_parents,
+        clk = clk_register_mux(NULL, "clcd_syn_mclk", clcd_synth_parents,
                         ARRAY_SIZE(clcd_synth_parents), 0,
                         SPEAR1340_CLCD_CLK_SYNT, SPEAR1340_CLCD_SYNT_CLK_SHIFT,
                         SPEAR1340_CLCD_SYNT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "clcd_synth_mux_clk", NULL);
+        clk_register_clkdev(clk, "clcd_syn_mclk", NULL);
 
-        clk = clk_register_frac("clcd_synth_clk", "clcd_synth_mux_clk", 0,
+        clk = clk_register_frac("clcd_syn_clk", "clcd_syn_mclk", 0,
                         SPEAR1340_CLCD_CLK_SYNT, clcd_rtbl,
                         ARRAY_SIZE(clcd_rtbl), &_lock);
-        clk_register_clkdev(clk, "clcd_synth_clk", NULL);
+        clk_register_clkdev(clk, "clcd_syn_clk", NULL);
 
-        clk = clk_register_mux(NULL, "clcd_pixel_mux_clk", clcd_pixel_parents,
+        clk = clk_register_mux(NULL, "clcd_pixel_mclk", clcd_pixel_parents,
                         ARRAY_SIZE(clcd_pixel_parents), 0,
                         SPEAR1340_PERIP_CLK_CFG, SPEAR1340_CLCD_CLK_SHIFT,
                         SPEAR1340_CLCD_CLK_MASK, 0, &_lock);
         clk_register_clkdev(clk, "clcd_pixel_clk", NULL);
 
-        clk = clk_register_gate(NULL, "clcd_clk", "clcd_pixel_mux_clk", 0,
+        clk = clk_register_gate(NULL, "clcd_clk", "clcd_pixel_mclk", 0,
                         SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_CLCD_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, "clcd_clk", NULL);
 
         /* i2s */
-        clk = clk_register_mux(NULL, "i2s_src_mux_clk", i2s_src_parents,
+        clk = clk_register_mux(NULL, "i2s_src_mclk", i2s_src_parents,
                         ARRAY_SIZE(i2s_src_parents), 0, SPEAR1340_I2S_CLK_CFG,
                         SPEAR1340_I2S_SRC_CLK_SHIFT, SPEAR1340_I2S_SRC_CLK_MASK,
                         0, &_lock);
         clk_register_clkdev(clk, "i2s_src_clk", NULL);
 
-        clk = clk_register_aux("i2s_prs1_clk", NULL, "i2s_src_mux_clk", 0,
+        clk = clk_register_aux("i2s_prs1_clk", NULL, "i2s_src_mclk", 0,
                         SPEAR1340_I2S_CLK_CFG, &i2s_prs1_masks, i2s_prs1_rtbl,
                         ARRAY_SIZE(i2s_prs1_rtbl), &_lock, NULL);
         clk_register_clkdev(clk, "i2s_prs1_clk", NULL);
 
-        clk = clk_register_mux(NULL, "i2s_ref_mux_clk", i2s_ref_parents,
+        clk = clk_register_mux(NULL, "i2s_ref_mclk", i2s_ref_parents,
                         ARRAY_SIZE(i2s_ref_parents), 0, SPEAR1340_I2S_CLK_CFG,
                         SPEAR1340_I2S_REF_SHIFT, SPEAR1340_I2S_REF_SEL_MASK, 0,
                         &_lock);
         clk_register_clkdev(clk, "i2s_ref_clk", NULL);
 
-        clk = clk_register_gate(NULL, "i2s_ref_pad_clk", "i2s_ref_mux_clk", 0,
+        clk = clk_register_gate(NULL, "i2s_ref_pad_clk", "i2s_ref_mclk", 0,
                         SPEAR1340_PERIP2_CLK_ENB, SPEAR1340_I2S_REF_PAD_CLK_ENB,
                         0, &_lock);
         clk_register_clkdev(clk, "i2s_ref_pad_clk", NULL);
 
-        clk = clk_register_aux("i2s_sclk_clk", "i2s_sclk_gate_clk",
-                        "i2s_ref_mux_clk", 0, SPEAR1340_I2S_CLK_CFG,
-                        &i2s_sclk_masks, i2s_sclk_rtbl,
-                        ARRAY_SIZE(i2s_sclk_rtbl), &_lock, &clk1);
+        clk = clk_register_aux("i2s_sclk_clk", "i2s_sclk_gclk", "i2s_ref_mclk",
+                        0, SPEAR1340_I2S_CLK_CFG, &i2s_sclk_masks,
+                        i2s_sclk_rtbl, ARRAY_SIZE(i2s_sclk_rtbl), &_lock,
+                        &clk1);
         clk_register_clkdev(clk, "i2s_sclk_clk", NULL);
-        clk_register_clkdev(clk1, "i2s_sclk_gate_clk", NULL);
+        clk_register_clkdev(clk1, "i2s_sclk_gclk", NULL);
 
         /* clock derived from ahb clk */
         clk = clk_register_gate(NULL, "i2c0_clk", "ahb_clk", 0,
@@ -744,7 +741,7 @@ void __init spear1340_clk_init(void)
         clk_register_clkdev(clk, NULL, "e0280000.i2c");
 
         clk = clk_register_gate(NULL, "i2c1_clk", "ahb_clk", 0,
-                        SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_I2C1_CLK_ENB, 0,
+                        SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_I2C1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "b4000000.i2c");
 
@@ -800,13 +797,13 @@ void __init spear1340_clk_init(void)
                         &_lock);
         clk_register_clkdev(clk, "sysram1_clk", NULL);
 
-        clk = clk_register_aux("adc_synth_clk", "adc_synth_gate_clk", "ahb_clk",
+        clk = clk_register_aux("adc_syn_clk", "adc_syn_gclk", "ahb_clk",
                         0, SPEAR1340_ADC_CLK_SYNT, NULL, adc_rtbl,
                         ARRAY_SIZE(adc_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "adc_synth_clk", NULL);
-        clk_register_clkdev(clk1, "adc_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "adc_syn_clk", NULL);
+        clk_register_clkdev(clk1, "adc_syn_gclk", NULL);
 
-        clk = clk_register_gate(NULL, "adc_clk", "adc_synth_gate_clk", 0,
+        clk = clk_register_gate(NULL, "adc_clk", "adc_syn_gclk", 0,
                         SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_ADC_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "adc_clk");
@@ -843,39 +840,39 @@ void __init spear1340_clk_init(void)
         clk_register_clkdev(clk, NULL, "e0300000.kbd");
 
         /* RAS clks */
-        clk = clk_register_mux(NULL, "gen_synth0_1_mux_clk",
-                        gen_synth0_1_parents, ARRAY_SIZE(gen_synth0_1_parents),
-                        0, SPEAR1340_PLL_CFG, SPEAR1340_GEN_SYNT0_1_CLK_SHIFT,
+        clk = clk_register_mux(NULL, "gen_syn0_1_mclk", gen_synth0_1_parents,
+                        ARRAY_SIZE(gen_synth0_1_parents), 0, SPEAR1340_PLL_CFG,
+                        SPEAR1340_GEN_SYNT0_1_CLK_SHIFT,
                         SPEAR1340_GEN_SYNT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gen_synth0_1_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn0_1_clk", NULL);
 
-        clk = clk_register_mux(NULL, "gen_synth2_3_mux_clk",
-                        gen_synth2_3_parents, ARRAY_SIZE(gen_synth2_3_parents),
-                        0, SPEAR1340_PLL_CFG, SPEAR1340_GEN_SYNT2_3_CLK_SHIFT,
+        clk = clk_register_mux(NULL, "gen_syn2_3_mclk", gen_synth2_3_parents,
+                        ARRAY_SIZE(gen_synth2_3_parents), 0, SPEAR1340_PLL_CFG,
+                        SPEAR1340_GEN_SYNT2_3_CLK_SHIFT,
                         SPEAR1340_GEN_SYNT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gen_synth2_3_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn2_3_clk", NULL);
 
-        clk = clk_register_frac("gen_synth0_clk", "gen_synth0_1_clk", 0,
+        clk = clk_register_frac("gen_syn0_clk", "gen_syn0_1_clk", 0,
                         SPEAR1340_GEN_CLK_SYNT0, gen_rtbl, ARRAY_SIZE(gen_rtbl),
                         &_lock);
-        clk_register_clkdev(clk, "gen_synth0_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn0_clk", NULL);
 
-        clk = clk_register_frac("gen_synth1_clk", "gen_synth0_1_clk", 0,
+        clk = clk_register_frac("gen_syn1_clk", "gen_syn0_1_clk", 0,
                         SPEAR1340_GEN_CLK_SYNT1, gen_rtbl, ARRAY_SIZE(gen_rtbl),
                         &_lock);
-        clk_register_clkdev(clk, "gen_synth1_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn1_clk", NULL);
 
-        clk = clk_register_frac("gen_synth2_clk", "gen_synth2_3_clk", 0,
+        clk = clk_register_frac("gen_syn2_clk", "gen_syn2_3_clk", 0,
                         SPEAR1340_GEN_CLK_SYNT2, gen_rtbl, ARRAY_SIZE(gen_rtbl),
                         &_lock);
-        clk_register_clkdev(clk, "gen_synth2_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn2_clk", NULL);
 
-        clk = clk_register_frac("gen_synth3_clk", "gen_synth2_3_clk", 0,
+        clk = clk_register_frac("gen_syn3_clk", "gen_syn2_3_clk", 0,
                         SPEAR1340_GEN_CLK_SYNT3, gen_rtbl, ARRAY_SIZE(gen_rtbl),
                         &_lock);
-        clk_register_clkdev(clk, "gen_synth3_clk", NULL);
+        clk_register_clkdev(clk, "gen_syn3_clk", NULL);
 
-        clk = clk_register_gate(NULL, "mali_clk", "gen_synth3_clk", 0,
+        clk = clk_register_gate(NULL, "mali_clk", "gen_syn3_clk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_MALI_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "mali");
@@ -890,74 +887,74 @@ void __init spear1340_clk_init(void)
                         &_lock);
         clk_register_clkdev(clk, NULL, "spear_cec.1");
 
-        clk = clk_register_mux(NULL, "spdif_out_mux_clk", spdif_out_parents,
+        clk = clk_register_mux(NULL, "spdif_out_mclk", spdif_out_parents,
                         ARRAY_SIZE(spdif_out_parents), 0,
                         SPEAR1340_PERIP_CLK_CFG, SPEAR1340_SPDIF_OUT_CLK_SHIFT,
                         SPEAR1340_SPDIF_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "spdif_out_mux_clk", NULL);
+        clk_register_clkdev(clk, "spdif_out_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "spdif_out_clk", "spdif_out_mux_clk", 0,
+        clk = clk_register_gate(NULL, "spdif_out_clk", "spdif_out_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_SPDIF_OUT_CLK_ENB,
                         0, &_lock);
         clk_register_clkdev(clk, NULL, "spdif-out");
 
-        clk = clk_register_mux(NULL, "spdif_in_mux_clk", spdif_in_parents,
+        clk = clk_register_mux(NULL, "spdif_in_mclk", spdif_in_parents,
                         ARRAY_SIZE(spdif_in_parents), 0,
                         SPEAR1340_PERIP_CLK_CFG, SPEAR1340_SPDIF_IN_CLK_SHIFT,
                         SPEAR1340_SPDIF_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "spdif_in_mux_clk", NULL);
+        clk_register_clkdev(clk, "spdif_in_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "spdif_in_clk", "spdif_in_mux_clk", 0,
+        clk = clk_register_gate(NULL, "spdif_in_clk", "spdif_in_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_SPDIF_IN_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "spdif-in");
 
-        clk = clk_register_gate(NULL, "acp_clk", "acp_mux_clk", 0,
+        clk = clk_register_gate(NULL, "acp_clk", "acp_mclk", 0,
                         SPEAR1340_PERIP2_CLK_ENB, SPEAR1340_ACP_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "acp_clk");
 
-        clk = clk_register_gate(NULL, "plgpio_clk", "plgpio_mux_clk", 0,
+        clk = clk_register_gate(NULL, "plgpio_clk", "plgpio_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_PLGPIO_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "plgpio");
 
-        clk = clk_register_gate(NULL, "video_dec_clk", "video_dec_mux_clk", 0,
+        clk = clk_register_gate(NULL, "video_dec_clk", "video_dec_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_VIDEO_DEC_CLK_ENB,
                         0, &_lock);
         clk_register_clkdev(clk, NULL, "video_dec");
 
-        clk = clk_register_gate(NULL, "video_enc_clk", "video_enc_mux_clk", 0,
+        clk = clk_register_gate(NULL, "video_enc_clk", "video_enc_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_VIDEO_ENC_CLK_ENB,
                         0, &_lock);
         clk_register_clkdev(clk, NULL, "video_enc");
 
-        clk = clk_register_gate(NULL, "video_in_clk", "video_in_mux_clk", 0,
+        clk = clk_register_gate(NULL, "video_in_clk", "video_in_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_VIDEO_IN_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "spear_vip");
 
-        clk = clk_register_gate(NULL, "cam0_clk", "cam0_mux_clk", 0,
+        clk = clk_register_gate(NULL, "cam0_clk", "cam0_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_CAM0_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "spear_camif.0");
 
-        clk = clk_register_gate(NULL, "cam1_clk", "cam1_mux_clk", 0,
+        clk = clk_register_gate(NULL, "cam1_clk", "cam1_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_CAM1_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "spear_camif.1");
 
-        clk = clk_register_gate(NULL, "cam2_clk", "cam2_mux_clk", 0,
+        clk = clk_register_gate(NULL, "cam2_clk", "cam2_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_CAM2_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "spear_camif.2");
 
-        clk = clk_register_gate(NULL, "cam3_clk", "cam3_mux_clk", 0,
+        clk = clk_register_gate(NULL, "cam3_clk", "cam3_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_CAM3_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "spear_camif.3");
 
-        clk = clk_register_gate(NULL, "pwm_clk", "pwm_mux_clk", 0,
+        clk = clk_register_gate(NULL, "pwm_clk", "pwm_mclk", 0,
                         SPEAR1340_PERIP3_CLK_ENB, SPEAR1340_PWM_CLK_ENB, 0,
                         &_lock);
         clk_register_clkdev(clk, NULL, "pwm");
diff --git a/drivers/clk/spear/spear3xx_clock.c b/drivers/clk/spear/spear3xx_clock.c
index 01dd6daff2a1..c3157454bb3f 100644
--- a/drivers/clk/spear/spear3xx_clock.c
+++ b/drivers/clk/spear/spear3xx_clock.c
@@ -122,12 +122,12 @@ static struct gpt_rate_tbl gpt_rtbl[] = {
 };
 
 /* clock parents */
-static const char *uart0_parents[] = { "pll3_48m_clk", "uart_synth_gate_clk", };
-static const char *firda_parents[] = { "pll3_48m_clk", "firda_synth_gate_clk",
+static const char *uart0_parents[] = { "pll3_clk", "uart_syn_gclk", };
+static const char *firda_parents[] = { "pll3_clk", "firda_syn_gclk",
 };
-static const char *gpt0_parents[] = { "pll3_48m_clk", "gpt0_synth_clk", };
-static const char *gpt1_parents[] = { "pll3_48m_clk", "gpt1_synth_clk", };
-static const char *gpt2_parents[] = { "pll3_48m_clk", "gpt2_synth_clk", };
+static const char *gpt0_parents[] = { "pll3_clk", "gpt0_syn_clk", };
+static const char *gpt1_parents[] = { "pll3_clk", "gpt1_syn_clk", };
+static const char *gpt2_parents[] = { "pll3_clk", "gpt2_syn_clk", };
 static const char *gen2_3_parents[] = { "pll1_clk", "pll2_clk", };
 static const char *ddr_parents[] = { "ahb_clk", "ahbmult2_clk", "none",
         "pll2_clk", };
@@ -137,7 +137,7 @@ static void __init spear300_clk_init(void)
 {
         struct clk *clk;
 
-        clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_48m_clk", 0,
+        clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_clk", 0,
                         1, 1);
         clk_register_clkdev(clk, NULL, "60000000.clcd");
 
@@ -219,15 +219,11 @@ static void __init spear310_clk_init(void)
         #define SPEAR320_UARTX_PCLK_VAL_SYNTH1          0x0
         #define SPEAR320_UARTX_PCLK_VAL_APB             0x1
 
-static const char *i2s_ref_parents[] = { "ras_pll2_clk",
-        "ras_gen2_synth_gate_clk", };
-static const char *sdhci_parents[] = { "ras_pll3_48m_clk",
-        "ras_gen3_synth_gate_clk",
-};
+static const char *i2s_ref_parents[] = { "ras_pll2_clk", "ras_syn2_gclk", };
+static const char *sdhci_parents[] = { "ras_pll3_clk", "ras_syn3_gclk", };
 static const char *smii0_parents[] = { "smii_125m_pad", "ras_pll2_clk",
-        "ras_gen0_synth_gate_clk", };
-static const char *uartx_parents[] = { "ras_gen1_synth_gate_clk", "ras_apb_clk",
-};
+        "ras_syn0_gclk", };
+static const char *uartx_parents[] = { "ras_syn1_gclk", "ras_apb_clk", };
 
 static void __init spear320_clk_init(void)
 {
@@ -237,7 +233,7 @@ static void __init spear320_clk_init(void)
                         CLK_IS_ROOT, 125000000);
         clk_register_clkdev(clk, "smii_125m_pad", NULL);
 
-        clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_48m_clk", 0,
+        clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_clk", 0,
                         1, 1);
         clk_register_clkdev(clk, NULL, "90000000.clcd");
 
@@ -363,9 +359,9 @@ void __init spear3xx_clk_init(void)
         clk_register_clkdev(clk, NULL, "fc900000.rtc");
 
         /* clock derived from 24 MHz osc clk */
-        clk = clk_register_fixed_rate(NULL, "pll3_48m_clk", "osc_24m_clk", 0,
+        clk = clk_register_fixed_rate(NULL, "pll3_clk", "osc_24m_clk", 0,
                         48000000);
-        clk_register_clkdev(clk, "pll3_48m_clk", NULL);
+        clk_register_clkdev(clk, "pll3_clk", NULL);
 
         clk = clk_register_fixed_factor(NULL, "wdt_clk", "osc_24m_clk", 0, 1,
                         1);
@@ -392,98 +388,98 @@ void __init spear3xx_clk_init(void)
                         HCLK_RATIO_MASK, 0, &_lock);
         clk_register_clkdev(clk, "ahb_clk", NULL);
 
-        clk = clk_register_aux("uart_synth_clk", "uart_synth_gate_clk",
-                        "pll1_clk", 0, UART_CLK_SYNT, NULL, aux_rtbl,
-                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "uart_synth_clk", NULL);
-        clk_register_clkdev(clk1, "uart_synth_gate_clk", NULL);
+        clk = clk_register_aux("uart_syn_clk", "uart_syn_gclk", "pll1_clk", 0,
+                        UART_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl),
+                        &_lock, &clk1);
+        clk_register_clkdev(clk, "uart_syn_clk", NULL);
+        clk_register_clkdev(clk1, "uart_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "uart0_mux_clk", uart0_parents,
+        clk = clk_register_mux(NULL, "uart0_mclk", uart0_parents,
                         ARRAY_SIZE(uart0_parents), 0, PERIP_CLK_CFG,
                         UART_CLK_SHIFT, UART_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "uart0_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart0_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart0", "uart0_mux_clk", 0,
-                        PERIP1_CLK_ENB, UART_CLK_ENB, 0, &_lock);
+        clk = clk_register_gate(NULL, "uart0", "uart0_mclk", 0, PERIP1_CLK_ENB,
+                        UART_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "d0000000.serial");
 
-        clk = clk_register_aux("firda_synth_clk", "firda_synth_gate_clk",
-                        "pll1_clk", 0, FIRDA_CLK_SYNT, NULL, aux_rtbl,
-                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "firda_synth_clk", NULL);
-        clk_register_clkdev(clk1, "firda_synth_gate_clk", NULL);
+        clk = clk_register_aux("firda_syn_clk", "firda_syn_gclk", "pll1_clk", 0,
+                        FIRDA_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl),
+                        &_lock, &clk1);
+        clk_register_clkdev(clk, "firda_syn_clk", NULL);
+        clk_register_clkdev(clk1, "firda_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "firda_mux_clk", firda_parents,
+        clk = clk_register_mux(NULL, "firda_mclk", firda_parents,
                         ARRAY_SIZE(firda_parents), 0, PERIP_CLK_CFG,
                         FIRDA_CLK_SHIFT, FIRDA_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "firda_mux_clk", NULL);
+        clk_register_clkdev(clk, "firda_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "firda_clk", "firda_mux_clk", 0,
+        clk = clk_register_gate(NULL, "firda_clk", "firda_mclk", 0,
                         PERIP1_CLK_ENB, FIRDA_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "firda");
 
         /* gpt clocks */
-        clk_register_gpt("gpt0_synth_clk", "pll1_clk", 0, PRSC0_CLK_CFG,
-                        gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock);
+        clk_register_gpt("gpt0_syn_clk", "pll1_clk", 0, PRSC0_CLK_CFG, gpt_rtbl,
+                        ARRAY_SIZE(gpt_rtbl), &_lock);
         clk = clk_register_mux(NULL, "gpt0_clk", gpt0_parents,
                         ARRAY_SIZE(gpt0_parents), 0, PERIP_CLK_CFG,
                         GPT0_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock);
         clk_register_clkdev(clk, NULL, "gpt0");
 
-        clk_register_gpt("gpt1_synth_clk", "pll1_clk", 0, PRSC1_CLK_CFG,
-                        gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock);
-        clk = clk_register_mux(NULL, "gpt1_mux_clk", gpt1_parents,
+        clk_register_gpt("gpt1_syn_clk", "pll1_clk", 0, PRSC1_CLK_CFG, gpt_rtbl,
+                        ARRAY_SIZE(gpt_rtbl), &_lock);
+        clk = clk_register_mux(NULL, "gpt1_mclk", gpt1_parents,
                         ARRAY_SIZE(gpt1_parents), 0, PERIP_CLK_CFG,
                         GPT1_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gpt1_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt1_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mclk", 0,
                         PERIP1_CLK_ENB, GPT1_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "gpt1");
 
-        clk_register_gpt("gpt2_synth_clk", "pll1_clk", 0, PRSC2_CLK_CFG,
-                        gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock);
-        clk = clk_register_mux(NULL, "gpt2_mux_clk", gpt2_parents,
+        clk_register_gpt("gpt2_syn_clk", "pll1_clk", 0, PRSC2_CLK_CFG, gpt_rtbl,
+                        ARRAY_SIZE(gpt_rtbl), &_lock);
+        clk = clk_register_mux(NULL, "gpt2_mclk", gpt2_parents,
                         ARRAY_SIZE(gpt2_parents), 0, PERIP_CLK_CFG,
                         GPT2_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gpt2_mux_clk", NULL);
-        clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mux_clk", 0,
+        clk_register_clkdev(clk, "gpt2_mclk", NULL);
+        clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mclk", 0,
                         PERIP1_CLK_ENB, GPT2_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "gpt2");
 
         /* general synths clocks */
-        clk = clk_register_aux("gen0_synth_clk", "gen0_synth_gate_clk",
-                        "pll1_clk", 0, GEN0_CLK_SYNT, NULL, aux_rtbl,
-                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "gen0_synth_clk", NULL);
-        clk_register_clkdev(clk1, "gen0_synth_gate_clk", NULL);
-
-        clk = clk_register_aux("gen1_synth_clk", "gen1_synth_gate_clk",
-                        "pll1_clk", 0, GEN1_CLK_SYNT, NULL, aux_rtbl,
-                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "gen1_synth_clk", NULL);
-        clk_register_clkdev(clk1, "gen1_synth_gate_clk", NULL);
-
-        clk = clk_register_mux(NULL, "gen2_3_parent_clk", gen2_3_parents,
+        clk = clk_register_aux("gen0_syn_clk", "gen0_syn_gclk", "pll1_clk",
+                        0, GEN0_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl),
+                        &_lock, &clk1);
+        clk_register_clkdev(clk, "gen0_syn_clk", NULL);
+        clk_register_clkdev(clk1, "gen0_syn_gclk", NULL);
+
+        clk = clk_register_aux("gen1_syn_clk", "gen1_syn_gclk", "pll1_clk",
+                        0, GEN1_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl),
+                        &_lock, &clk1);
+        clk_register_clkdev(clk, "gen1_syn_clk", NULL);
+        clk_register_clkdev(clk1, "gen1_syn_gclk", NULL);
+
+        clk = clk_register_mux(NULL, "gen2_3_par_clk", gen2_3_parents,
                         ARRAY_SIZE(gen2_3_parents), 0, CORE_CLK_CFG,
                         GEN_SYNTH2_3_CLK_SHIFT, GEN_SYNTH2_3_CLK_MASK, 0,
                         &_lock);
-        clk_register_clkdev(clk, "gen2_3_parent_clk", NULL);
+        clk_register_clkdev(clk, "gen2_3_par_clk", NULL);
 
-        clk = clk_register_aux("gen2_synth_clk", "gen2_synth_gate_clk",
-                        "gen2_3_parent_clk", 0, GEN2_CLK_SYNT, NULL, aux_rtbl,
+        clk = clk_register_aux("gen2_syn_clk", "gen2_syn_gclk",
+                        "gen2_3_par_clk", 0, GEN2_CLK_SYNT, NULL, aux_rtbl,
                         ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "gen2_synth_clk", NULL);
-        clk_register_clkdev(clk1, "gen2_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "gen2_syn_clk", NULL);
+        clk_register_clkdev(clk1, "gen2_syn_gclk", NULL);
 
-        clk = clk_register_aux("gen3_synth_clk", "gen3_synth_gate_clk",
-                        "gen2_3_parent_clk", 0, GEN3_CLK_SYNT, NULL, aux_rtbl,
+        clk = clk_register_aux("gen3_syn_clk", "gen3_syn_gclk",
+                        "gen2_3_par_clk", 0, GEN3_CLK_SYNT, NULL, aux_rtbl,
                         ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "gen3_synth_clk", NULL);
-        clk_register_clkdev(clk1, "gen3_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "gen3_syn_clk", NULL);
+        clk_register_clkdev(clk1, "gen3_syn_gclk", NULL);
 
         /* clock derived from pll3 clk */
-        clk = clk_register_gate(NULL, "usbh_clk", "pll3_48m_clk", 0,
-                        PERIP1_CLK_ENB, USBH_CLK_ENB, 0, &_lock);
+        clk = clk_register_gate(NULL, "usbh_clk", "pll3_clk", 0, PERIP1_CLK_ENB,
+                        USBH_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, "usbh_clk", NULL);
 
         clk = clk_register_fixed_factor(NULL, "usbh.0_clk", "usbh_clk", 0, 1,
@@ -494,8 +490,8 @@ void __init spear3xx_clk_init(void)
                         1);
         clk_register_clkdev(clk, "usbh.1_clk", NULL);
 
-        clk = clk_register_gate(NULL, "usbd_clk", "pll3_48m_clk", 0,
-                        PERIP1_CLK_ENB, USBD_CLK_ENB, 0, &_lock);
+        clk = clk_register_gate(NULL, "usbd_clk", "pll3_clk", 0, PERIP1_CLK_ENB,
+                        USBD_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "designware_udc");
 
         /* clock derived from ahb clk */
@@ -579,29 +575,25 @@ void __init spear3xx_clk_init(void)
                         RAS_CLK_ENB, RAS_PLL2_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, "ras_pll2_clk", NULL);
 
-        clk = clk_register_gate(NULL, "ras_pll3_48m_clk", "pll3_48m_clk", 0,
+        clk = clk_register_gate(NULL, "ras_pll3_clk", "pll3_clk", 0,
                         RAS_CLK_ENB, RAS_48M_CLK_ENB, 0, &_lock);
-        clk_register_clkdev(clk, "ras_pll3_48m_clk", NULL);
-
-        clk = clk_register_gate(NULL, "ras_gen0_synth_gate_clk",
-                        "gen0_synth_gate_clk", 0, RAS_CLK_ENB,
-                        RAS_SYNT0_CLK_ENB, 0, &_lock);
-        clk_register_clkdev(clk, "ras_gen0_synth_gate_clk", NULL);
-
-        clk = clk_register_gate(NULL, "ras_gen1_synth_gate_clk",
-                        "gen1_synth_gate_clk", 0, RAS_CLK_ENB,
-                        RAS_SYNT1_CLK_ENB, 0, &_lock);
-        clk_register_clkdev(clk, "ras_gen1_synth_gate_clk", NULL);
-
-        clk = clk_register_gate(NULL, "ras_gen2_synth_gate_clk",
-                        "gen2_synth_gate_clk", 0, RAS_CLK_ENB,
-                        RAS_SYNT2_CLK_ENB, 0, &_lock);
-        clk_register_clkdev(clk, "ras_gen2_synth_gate_clk", NULL);
-
-        clk = clk_register_gate(NULL, "ras_gen3_synth_gate_clk",
-                        "gen3_synth_gate_clk", 0, RAS_CLK_ENB,
-                        RAS_SYNT3_CLK_ENB, 0, &_lock);
-        clk_register_clkdev(clk, "ras_gen3_synth_gate_clk", NULL);
+        clk_register_clkdev(clk, "ras_pll3_clk", NULL);
+
+        clk = clk_register_gate(NULL, "ras_syn0_gclk", "gen0_syn_gclk", 0,
+                        RAS_CLK_ENB, RAS_SYNT0_CLK_ENB, 0, &_lock);
+        clk_register_clkdev(clk, "ras_syn0_gclk", NULL);
+
+        clk = clk_register_gate(NULL, "ras_syn1_gclk", "gen1_syn_gclk", 0,
+                        RAS_CLK_ENB, RAS_SYNT1_CLK_ENB, 0, &_lock);
+        clk_register_clkdev(clk, "ras_syn1_gclk", NULL);
+
+        clk = clk_register_gate(NULL, "ras_syn2_gclk", "gen2_syn_gclk", 0,
+                        RAS_CLK_ENB, RAS_SYNT2_CLK_ENB, 0, &_lock);
+        clk_register_clkdev(clk, "ras_syn2_gclk", NULL);
+
+        clk = clk_register_gate(NULL, "ras_syn3_gclk", "gen3_syn_gclk", 0,
+                        RAS_CLK_ENB, RAS_SYNT3_CLK_ENB, 0, &_lock);
+        clk_register_clkdev(clk, "ras_syn3_gclk", NULL);
 
         if (of_machine_is_compatible("st,spear300"))
                 spear300_clk_init();
diff --git a/drivers/clk/spear/spear6xx_clock.c b/drivers/clk/spear/spear6xx_clock.c
index 61026ae564ab..a98d0866f541 100644
--- a/drivers/clk/spear/spear6xx_clock.c
+++ b/drivers/clk/spear/spear6xx_clock.c
@@ -97,13 +97,12 @@ static struct aux_rate_tbl aux_rtbl[] = {
         {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */
 };
 
-static const char *clcd_parents[] = { "pll3_48m_clk", "clcd_synth_gate_clk", };
-static const char *firda_parents[] = { "pll3_48m_clk", "firda_synth_gate_clk",
-};
-static const char *uart_parents[] = { "pll3_48m_clk", "uart_synth_gate_clk", };
-static const char *gpt0_1_parents[] = { "pll3_48m_clk", "gpt0_1_synth_clk", };
-static const char *gpt2_parents[] = { "pll3_48m_clk", "gpt2_synth_clk", };
-static const char *gpt3_parents[] = { "pll3_48m_clk", "gpt3_synth_clk", };
+static const char *clcd_parents[] = { "pll3_clk", "clcd_syn_gclk", };
+static const char *firda_parents[] = { "pll3_clk", "firda_syn_gclk", };
+static const char *uart_parents[] = { "pll3_clk", "uart_syn_gclk", };
+static const char *gpt0_1_parents[] = { "pll3_clk", "gpt0_1_syn_clk", };
+static const char *gpt2_parents[] = { "pll3_clk", "gpt2_syn_clk", };
+static const char *gpt3_parents[] = { "pll3_clk", "gpt3_syn_clk", };
 static const char *ddr_parents[] = { "ahb_clk", "ahbmult2_clk", "none",
         "pll2_clk", };
 
@@ -136,9 +135,9 @@ void __init spear6xx_clk_init(void)
         clk_register_clkdev(clk, NULL, "rtc-spear");
 
         /* clock derived from 30 MHz osc clk */
-        clk = clk_register_fixed_rate(NULL, "pll3_48m_clk", "osc_24m_clk", 0,
+        clk = clk_register_fixed_rate(NULL, "pll3_clk", "osc_24m_clk", 0,
                         48000000);
-        clk_register_clkdev(clk, "pll3_48m_clk", NULL);
+        clk_register_clkdev(clk, "pll3_clk", NULL);
 
         clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, "osc_30m_clk",
                         0, PLL1_CTR, PLL1_FRQ, pll_rtbl, ARRAY_SIZE(pll_rtbl),
@@ -146,9 +145,9 @@ void __init spear6xx_clk_init(void)
         clk_register_clkdev(clk, "vco1_clk", NULL);
         clk_register_clkdev(clk1, "pll1_clk", NULL);
 
-        clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL,
-                        "osc_30m_clk", 0, PLL2_CTR, PLL2_FRQ, pll_rtbl,
-                        ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL);
+        clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, "osc_30m_clk",
+                        0, PLL2_CTR, PLL2_FRQ, pll_rtbl, ARRAY_SIZE(pll_rtbl),
+                        &_lock, &clk1, NULL);
         clk_register_clkdev(clk, "vco2_clk", NULL);
         clk_register_clkdev(clk1, "pll2_clk", NULL);
 
@@ -165,111 +164,111 @@ void __init spear6xx_clk_init(void)
                         HCLK_RATIO_MASK, 0, &_lock);
         clk_register_clkdev(clk, "ahb_clk", NULL);
 
-        clk = clk_register_aux("uart_synth_clk", "uart_synth_gate_clk",
-                        "pll1_clk", 0, UART_CLK_SYNT, NULL, aux_rtbl,
-                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "uart_synth_clk", NULL);
-        clk_register_clkdev(clk1, "uart_synth_gate_clk", NULL);
+        clk = clk_register_aux("uart_syn_clk", "uart_syn_gclk", "pll1_clk", 0,
+                        UART_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl),
+                        &_lock, &clk1);
+        clk_register_clkdev(clk, "uart_syn_clk", NULL);
+        clk_register_clkdev(clk1, "uart_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "uart_mux_clk", uart_parents,
+        clk = clk_register_mux(NULL, "uart_mclk", uart_parents,
                         ARRAY_SIZE(uart_parents), 0, PERIP_CLK_CFG,
                         UART_CLK_SHIFT, UART_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "uart_mux_clk", NULL);
+        clk_register_clkdev(clk, "uart_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "uart0", "uart_mux_clk", 0,
-                        PERIP1_CLK_ENB, UART0_CLK_ENB, 0, &_lock);
+        clk = clk_register_gate(NULL, "uart0", "uart_mclk", 0, PERIP1_CLK_ENB,
+                        UART0_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "d0000000.serial");
 
-        clk = clk_register_gate(NULL, "uart1", "uart_mux_clk", 0,
-                        PERIP1_CLK_ENB, UART1_CLK_ENB, 0, &_lock);
+        clk = clk_register_gate(NULL, "uart1", "uart_mclk", 0, PERIP1_CLK_ENB,
+                        UART1_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "d0080000.serial");
 
-        clk = clk_register_aux("firda_synth_clk", "firda_synth_gate_clk",
-                        "pll1_clk", 0, FIRDA_CLK_SYNT, NULL, aux_rtbl,
-                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "firda_synth_clk", NULL);
-        clk_register_clkdev(clk1, "firda_synth_gate_clk", NULL);
+        clk = clk_register_aux("firda_syn_clk", "firda_syn_gclk", "pll1_clk",
+                        0, FIRDA_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl),
+                        &_lock, &clk1);
+        clk_register_clkdev(clk, "firda_syn_clk", NULL);
+        clk_register_clkdev(clk1, "firda_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "firda_mux_clk", firda_parents,
+        clk = clk_register_mux(NULL, "firda_mclk", firda_parents,
                         ARRAY_SIZE(firda_parents), 0, PERIP_CLK_CFG,
                         FIRDA_CLK_SHIFT, FIRDA_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "firda_mux_clk", NULL);
+        clk_register_clkdev(clk, "firda_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "firda_clk", "firda_mux_clk", 0,
+        clk = clk_register_gate(NULL, "firda_clk", "firda_mclk", 0,
                         PERIP1_CLK_ENB, FIRDA_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "firda");
 
-        clk = clk_register_aux("clcd_synth_clk", "clcd_synth_gate_clk",
-                        "pll1_clk", 0, CLCD_CLK_SYNT, NULL, aux_rtbl,
-                        ARRAY_SIZE(aux_rtbl), &_lock, &clk1);
-        clk_register_clkdev(clk, "clcd_synth_clk", NULL);
-        clk_register_clkdev(clk1, "clcd_synth_gate_clk", NULL);
+        clk = clk_register_aux("clcd_syn_clk", "clcd_syn_gclk", "pll1_clk",
+                        0, CLCD_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl),
+                        &_lock, &clk1);
+        clk_register_clkdev(clk, "clcd_syn_clk", NULL);
+        clk_register_clkdev(clk1, "clcd_syn_gclk", NULL);
 
-        clk = clk_register_mux(NULL, "clcd_mux_clk", clcd_parents,
+        clk = clk_register_mux(NULL, "clcd_mclk", clcd_parents,
                         ARRAY_SIZE(clcd_parents), 0, PERIP_CLK_CFG,
                         CLCD_CLK_SHIFT, CLCD_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "clcd_mux_clk", NULL);
+        clk_register_clkdev(clk, "clcd_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "clcd_clk", "clcd_mux_clk", 0,
+        clk = clk_register_gate(NULL, "clcd_clk", "clcd_mclk", 0,
                         PERIP1_CLK_ENB, CLCD_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "clcd");
 
         /* gpt clocks */
-        clk = clk_register_gpt("gpt0_1_synth_clk", "pll1_clk", 0, PRSC0_CLK_CFG,
+        clk = clk_register_gpt("gpt0_1_syn_clk", "pll1_clk", 0, PRSC0_CLK_CFG,
                         gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock);
-        clk_register_clkdev(clk, "gpt0_1_synth_clk", NULL);
+        clk_register_clkdev(clk, "gpt0_1_syn_clk", NULL);
 
-        clk = clk_register_mux(NULL, "gpt0_mux_clk", gpt0_1_parents,
+        clk = clk_register_mux(NULL, "gpt0_mclk", gpt0_1_parents,
                         ARRAY_SIZE(gpt0_1_parents), 0, PERIP_CLK_CFG,
                         GPT0_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock);
         clk_register_clkdev(clk, NULL, "gpt0");
 
-        clk = clk_register_mux(NULL, "gpt1_mux_clk", gpt0_1_parents,
+        clk = clk_register_mux(NULL, "gpt1_mclk", gpt0_1_parents,
                         ARRAY_SIZE(gpt0_1_parents), 0, PERIP_CLK_CFG,
                         GPT1_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gpt1_mux_clk", NULL);
+        clk_register_clkdev(clk, "gpt1_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mux_clk", 0,
+        clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mclk", 0,
                         PERIP1_CLK_ENB, GPT1_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "gpt1");
 
-        clk = clk_register_gpt("gpt2_synth_clk", "pll1_clk", 0, PRSC1_CLK_CFG,
+        clk = clk_register_gpt("gpt2_syn_clk", "pll1_clk", 0, PRSC1_CLK_CFG,
                         gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock);
-        clk_register_clkdev(clk, "gpt2_synth_clk", NULL);
+        clk_register_clkdev(clk, "gpt2_syn_clk", NULL);
 
-        clk = clk_register_mux(NULL, "gpt2_mux_clk", gpt2_parents,
+        clk = clk_register_mux(NULL, "gpt2_mclk", gpt2_parents,
                         ARRAY_SIZE(gpt2_parents), 0, PERIP_CLK_CFG,
                         GPT2_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gpt2_mux_clk", NULL);
+        clk_register_clkdev(clk, "gpt2_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mux_clk", 0,
+        clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mclk", 0,
                         PERIP1_CLK_ENB, GPT2_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "gpt2");
 
-        clk = clk_register_gpt("gpt3_synth_clk", "pll1_clk", 0, PRSC2_CLK_CFG,
+        clk = clk_register_gpt("gpt3_syn_clk", "pll1_clk", 0, PRSC2_CLK_CFG,
                         gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock);
-        clk_register_clkdev(clk, "gpt3_synth_clk", NULL);
+        clk_register_clkdev(clk, "gpt3_syn_clk", NULL);
 
-        clk = clk_register_mux(NULL, "gpt3_mux_clk", gpt3_parents,
+        clk = clk_register_mux(NULL, "gpt3_mclk", gpt3_parents,
                         ARRAY_SIZE(gpt3_parents), 0, PERIP_CLK_CFG,
                         GPT3_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock);
-        clk_register_clkdev(clk, "gpt3_mux_clk", NULL);
+        clk_register_clkdev(clk, "gpt3_mclk", NULL);
 
-        clk = clk_register_gate(NULL, "gpt3_clk", "gpt3_mux_clk", 0,
+        clk = clk_register_gate(NULL, "gpt3_clk", "gpt3_mclk", 0,
                         PERIP1_CLK_ENB, GPT3_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "gpt3");
 
         /* clock derived from pll3 clk */
-        clk = clk_register_gate(NULL, "usbh0_clk", "pll3_48m_clk", 0,
+        clk = clk_register_gate(NULL, "usbh0_clk", "pll3_clk", 0,
                         PERIP1_CLK_ENB, USBH0_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "usbh.0_clk");
 
-        clk = clk_register_gate(NULL, "usbh1_clk", "pll3_48m_clk", 0,
+        clk = clk_register_gate(NULL, "usbh1_clk", "pll3_clk", 0,
                         PERIP1_CLK_ENB, USBH1_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "usbh.1_clk");
 
-        clk = clk_register_gate(NULL, "usbd_clk", "pll3_48m_clk", 0,
-                        PERIP1_CLK_ENB, USBD_CLK_ENB, 0, &_lock);
+        clk = clk_register_gate(NULL, "usbd_clk", "pll3_clk", 0, PERIP1_CLK_ENB,
+                        USBD_CLK_ENB, 0, &_lock);
         clk_register_clkdev(clk, NULL, "designware_udc");
 
         /* clock derived from ahb clk */
@@ -278,9 +277,8 @@ void __init spear6xx_clk_init(void)
         clk_register_clkdev(clk, "ahbmult2_clk", NULL);
 
         clk = clk_register_mux(NULL, "ddr_clk", ddr_parents,
-                        ARRAY_SIZE(ddr_parents),
-                        0, PLL_CLK_CFG, MCTR_CLK_SHIFT, MCTR_CLK_MASK, 0,
-                        &_lock);
+                        ARRAY_SIZE(ddr_parents), 0, PLL_CLK_CFG, MCTR_CLK_SHIFT,
+                        MCTR_CLK_MASK, 0, &_lock);
         clk_register_clkdev(clk, "ddr_clk", NULL);
 
         clk = clk_register_divider(NULL, "apb_clk", "ahb_clk",
diff --git a/drivers/gpu/drm/gma500/cdv_device.c b/drivers/gpu/drm/gma500/cdv_device.c
index 9764045428ce..b7e7b49d8f62 100644
--- a/drivers/gpu/drm/gma500/cdv_device.c
+++ b/drivers/gpu/drm/gma500/cdv_device.c
@@ -78,21 +78,6 @@ static int cdv_backlight_combination_mode(struct drm_device *dev)
         return REG_READ(BLC_PWM_CTL2) & PWM_LEGACY_MODE;
 }
 
-static int cdv_get_brightness(struct backlight_device *bd)
-{
-        struct drm_device *dev = bl_get_data(bd);
-        u32 val = REG_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
-
-        if (cdv_backlight_combination_mode(dev)) {
-                u8 lbpc;
-
-                val &= ~1;
-                pci_read_config_byte(dev->pdev, 0xF4, &lbpc);
-                val *= lbpc;
-        }
-        return val;
-}
-
 static u32 cdv_get_max_backlight(struct drm_device *dev)
 {
         u32 max = REG_READ(BLC_PWM_CTL);
@@ -110,6 +95,22 @@ static u32 cdv_get_max_backlight(struct drm_device *dev)
         return max;
 }
 
+static int cdv_get_brightness(struct backlight_device *bd)
+{
+        struct drm_device *dev = bl_get_data(bd);
+        u32 val = REG_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
+
+        if (cdv_backlight_combination_mode(dev)) {
+                u8 lbpc;
+
+                val &= ~1;
+                pci_read_config_byte(dev->pdev, 0xF4, &lbpc);
+                val *= lbpc;
+        }
+        return (val * 100)/cdv_get_max_backlight(dev);
+
+}
+
 static int cdv_set_brightness(struct backlight_device *bd)
 {
         struct drm_device *dev = bl_get_data(bd);
@@ -120,6 +121,9 @@ static int cdv_set_brightness(struct backlight_device *bd)
         if (level < 1)
                 level = 1;
 
+        level *= cdv_get_max_backlight(dev);
+        level /= 100;
+
         if (cdv_backlight_combination_mode(dev)) {
                 u32 max = cdv_get_max_backlight(dev);
                 u8 lbpc;
@@ -157,7 +161,6 @@ static int cdv_backlight_init(struct drm_device *dev)
 
         cdv_backlight_device->props.brightness =
                         cdv_get_brightness(cdv_backlight_device);
-        cdv_backlight_device->props.max_brightness = cdv_get_max_backlight(dev);
         backlight_update_status(cdv_backlight_device);
         dev_priv->backlight_device = cdv_backlight_device;
         return 0;
diff --git a/drivers/gpu/drm/gma500/opregion.c b/drivers/gpu/drm/gma500/opregion.c
index 4f186eca3a30..c430bd424681 100644
--- a/drivers/gpu/drm/gma500/opregion.c
+++ b/drivers/gpu/drm/gma500/opregion.c
@@ -144,6 +144,8 @@ struct opregion_asle {
 
 #define ASLE_CBLV_VALID         (1<<31)
 
+static struct psb_intel_opregion *system_opregion;
+
 static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
 {
         struct drm_psb_private *dev_priv = dev->dev_private;
@@ -205,7 +207,7 @@ void psb_intel_opregion_enable_asle(struct drm_device *dev)
         struct drm_psb_private *dev_priv = dev->dev_private;
         struct opregion_asle *asle = dev_priv->opregion.asle;
 
-        if (asle) {
+        if (asle && system_opregion ) {
                 /* Don't do this on Medfield or other non PC like devices, they
                    use the bit for something different altogether */
                 psb_enable_pipestat(dev_priv, 0, PIPE_LEGACY_BLC_EVENT_ENABLE);
@@ -221,7 +223,6 @@ void psb_intel_opregion_enable_asle(struct drm_device *dev)
 #define ACPI_EV_LID            (1<<1)
 #define ACPI_EV_DOCK           (1<<2)
 
-static struct psb_intel_opregion *system_opregion;
 
 static int psb_intel_opregion_video_event(struct notifier_block *nb,
                                           unsigned long val, void *data)
@@ -266,9 +267,6 @@ void psb_intel_opregion_init(struct drm_device *dev)
                 system_opregion = opregion;
                 register_acpi_notifier(&psb_intel_opregion_notifier);
         }
-
-        if (opregion->asle)
-                psb_intel_opregion_enable_asle(dev);
 }
 
 void psb_intel_opregion_fini(struct drm_device *dev)
diff --git a/drivers/gpu/drm/gma500/opregion.h b/drivers/gpu/drm/gma500/opregion.h
index 72dc6b921265..4a90f8b0e16c 100644
--- a/drivers/gpu/drm/gma500/opregion.h
+++ b/drivers/gpu/drm/gma500/opregion.h
@@ -27,6 +27,7 @@ extern void psb_intel_opregion_asle_intr(struct drm_device *dev);
 extern void psb_intel_opregion_init(struct drm_device *dev);
 extern void psb_intel_opregion_fini(struct drm_device *dev);
 extern int psb_intel_opregion_setup(struct drm_device *dev);
+extern void psb_intel_opregion_enable_asle(struct drm_device *dev);
 
 #else
 
@@ -46,4 +47,8 @@ extern inline int psb_intel_opregion_setup(struct drm_device *dev)
 {
         return 0;
 }
+
+extern inline void psb_intel_opregion_enable_asle(struct drm_device *dev)
+{
+}
 #endif
diff --git a/drivers/gpu/drm/gma500/psb_device.c b/drivers/gpu/drm/gma500/psb_device.c
index eff039bf92d4..5971bc82b765 100644
--- a/drivers/gpu/drm/gma500/psb_device.c
+++ b/drivers/gpu/drm/gma500/psb_device.c
@@ -144,6 +144,10 @@ static int psb_backlight_init(struct drm_device *dev)
         psb_backlight_device->props.max_brightness = 100;
         backlight_update_status(psb_backlight_device);
         dev_priv->backlight_device = psb_backlight_device;
+
+        /* This must occur after the backlight is properly initialised */
+        psb_lid_timer_init(dev_priv);
+
         return 0;
 }
 
@@ -354,13 +358,6 @@ static int psb_chip_setup(struct drm_device *dev)
         return 0;
 }
 
-/* Not exactly an erratum more an irritation */
-static void psb_chip_errata(struct drm_device *dev)
-{
-        struct drm_psb_private *dev_priv = dev->dev_private;
-        psb_lid_timer_init(dev_priv);
-}
-
 static void psb_chip_teardown(struct drm_device *dev)
 {
         struct drm_psb_private *dev_priv = dev->dev_private;
@@ -379,7 +376,6 @@ const struct psb_ops psb_chip_ops = {
         .sgx_offset = PSB_SGX_OFFSET,
         .chip_setup = psb_chip_setup,
         .chip_teardown = psb_chip_teardown,
-        .errata = psb_chip_errata,
 
         .crtc_helper = &psb_intel_helper_funcs,
         .crtc_funcs = &psb_intel_crtc_funcs,
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index caba6e08693c..a8858a907f47 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -374,6 +374,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 
         if (ret)
                 return ret;
+        psb_intel_opregion_enable_asle(dev);
 #if 0
         /*enable runtime pm at last*/
         pm_runtime_enable(&dev->pdev->dev);
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index bef04c192768..3fda8c87f02c 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -386,6 +386,7 @@ config HID_MULTITOUCH
           - Unitec Panels
           - XAT optical touch panels
           - Xiroku optical touch panels
+          - Zytronic touch panels
 
           If unsure, say N.
 
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 875ff451842b..32039235cfee 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -659,6 +659,9 @@
 #define USB_DEVICE_ID_SAMSUNG_IR_REMOTE 0x0001
 #define USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE        0x0600
 
+#define USB_VENDOR_ID_SENNHEISER        0x1395
+#define USB_DEVICE_ID_SENNHEISER_BTD500USB      0x002c
+
 #define USB_VENDOR_ID_SIGMA_MICRO       0x1c4f
 #define USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD      0x0002
 
@@ -808,6 +811,9 @@
 #define USB_VENDOR_ID_ZYDACRON  0x13EC
 #define USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL   0x0006
 
+#define USB_VENDOR_ID_ZYTRONIC          0x14c8
+#define USB_DEVICE_ID_ZYTRONIC_ZXY100   0x0005
+
 #define USB_VENDOR_ID_PRIMAX    0x0461
 #define USB_DEVICE_ID_PRIMAX_KEYBOARD   0x4e05
 
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 132b0019365e..5301006f6c15 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -301,6 +301,9 @@ static const struct hid_device_id hid_battery_quirks[] = {
         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
                                USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
           HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
+        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+                USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
+          HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
         {}
 };
 
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 6e3332a99976..76479246d4ee 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1048,6 +1048,11 @@ static const struct hid_device_id mt_devices[] = {
                 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
                         USB_DEVICE_ID_XIROKU_CSR2) },
 
+        /* Zytronic panels */
+        { .driver_data = MT_CLS_SERIAL,
+                MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
+                        USB_DEVICE_ID_ZYTRONIC_ZXY100) },
+
         /* Generic MT device */
         { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
         { }
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 0597ee604f6e..903eef3d3e10 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -76,6 +76,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET },
+        { USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET },
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 5c1bc995e560..f10221f40803 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -123,7 +123,7 @@ static void ipoib_ud_skb_put_frags(struct ipoib_dev_priv *priv,
 
                 skb_frag_size_set(frag, size);
                 skb->data_len += size;
-                skb->truesize += size;
+                skb->truesize += PAGE_SIZE;
         } else
                 skb_put(skb, length);
 
@@ -156,14 +156,18 @@ static struct sk_buff *ipoib_alloc_rx_skb(struct net_device *dev, int id)
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         struct sk_buff *skb;
         int buf_size;
+        int tailroom;
         u64 *mapping;
 
-        if (ipoib_ud_need_sg(priv->max_ib_mtu))
+        if (ipoib_ud_need_sg(priv->max_ib_mtu)) {
                 buf_size = IPOIB_UD_HEAD_SIZE;
-        else
+                tailroom = 128; /* reserve some tailroom for IP/TCP headers */
+        } else {
                 buf_size = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
+                tailroom = 0;
+        }
 
-        skb = dev_alloc_skb(buf_size + 4);
+        skb = dev_alloc_skb(buf_size + tailroom + 4);
         if (unlikely(!skb))
                 return NULL;
 
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 3a74e4410fc0..86e2f4a62b9a 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -26,6 +26,8 @@
  * These routines are used by both DMA-remapping and Interrupt-remapping
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt /* has to precede printk.h */
+
 #include <linux/pci.h>
 #include <linux/dmar.h>
 #include <linux/iova.h>
@@ -39,8 +41,6 @@
 #include <asm/irq_remapping.h>
 #include <asm/iommu_table.h>
 
-#define PREFIX "DMAR: "
-
 /* No locks are needed as DMA remapping hardware unit
  * list is constructed at boot time and hotplug of
  * these units are not supported by the architecture.
@@ -83,16 +83,12 @@ static int __init dmar_parse_one_dev_scope(struct acpi_dmar_device_scope *scope,
                  * ignore it
                  */
                 if (!bus) {
-                        printk(KERN_WARNING
-                        PREFIX "Device scope bus [%d] not found\n",
-                        scope->bus);
+                        pr_warn("Device scope bus [%d] not found\n", scope->bus);
                         break;
                 }
                 pdev = pci_get_slot(bus, PCI_DEVFN(path->dev, path->fn));
                 if (!pdev) {
-                        printk(KERN_WARNING PREFIX
-                        "Device scope device [%04x:%02x:%02x.%02x] not found\n",
-                                segment, bus->number, path->dev, path->fn);
+                        /* warning will be printed below */
                         break;
                 }
                 path ++;
@@ -100,9 +96,8 @@ static int __init dmar_parse_one_dev_scope(struct acpi_dmar_device_scope *scope,
                 bus = pdev->subordinate;
         }
         if (!pdev) {
-                printk(KERN_WARNING PREFIX
-                "Device scope device [%04x:%02x:%02x.%02x] not found\n",
-                segment, scope->bus, path->dev, path->fn);
+                pr_warn("Device scope device [%04x:%02x:%02x.%02x] not found\n",
+                        segment, scope->bus, path->dev, path->fn);
                 *dev = NULL;
                 return 0;
         }
@@ -110,9 +105,8 @@ static int __init dmar_parse_one_dev_scope(struct acpi_dmar_device_scope *scope,
                         pdev->subordinate) || (scope->entry_type == \
                         ACPI_DMAR_SCOPE_TYPE_BRIDGE && !pdev->subordinate)) {
                 pci_dev_put(pdev);
-                printk(KERN_WARNING PREFIX
-                        "Device scope type does not match for %s\n",
-                         pci_name(pdev));
+                pr_warn("Device scope type does not match for %s\n",
+                        pci_name(pdev));
                 return -EINVAL;
         }
         *dev = pdev;
@@ -134,8 +128,7 @@ int __init dmar_parse_dev_scope(void *start, void *end, int *cnt,
                     scope->entry_type == ACPI_DMAR_SCOPE_TYPE_BRIDGE)
                         (*cnt)++;
                 else if (scope->entry_type != ACPI_DMAR_SCOPE_TYPE_IOAPIC) {
-                        printk(KERN_WARNING PREFIX
-                               "Unsupported device scope\n");
+                        pr_warn("Unsupported device scope\n");
                 }
                 start += scope->length;
         }
@@ -261,25 +254,23 @@ dmar_table_print_dmar_entry(struct acpi_dmar_header *header)
         case ACPI_DMAR_TYPE_HARDWARE_UNIT:
                 drhd = container_of(header, struct acpi_dmar_hardware_unit,
                                     header);
-                printk (KERN_INFO PREFIX
-                        "DRHD base: %#016Lx flags: %#x\n",
+                pr_info("DRHD base: %#016Lx flags: %#x\n",
                         (unsigned long long)drhd->address, drhd->flags);
                 break;
         case ACPI_DMAR_TYPE_RESERVED_MEMORY:
                 rmrr = container_of(header, struct acpi_dmar_reserved_memory,
                                     header);
-                printk (KERN_INFO PREFIX
-                        "RMRR base: %#016Lx end: %#016Lx\n",
+                pr_info("RMRR base: %#016Lx end: %#016Lx\n",
                         (unsigned long long)rmrr->base_address,
                         (unsigned long long)rmrr->end_address);
                 break;
         case ACPI_DMAR_TYPE_ATSR:
                 atsr = container_of(header, struct acpi_dmar_atsr, header);
-                printk(KERN_INFO PREFIX "ATSR flags: %#x\n", atsr->flags);
+                pr_info("ATSR flags: %#x\n", atsr->flags);
                 break;
         case ACPI_DMAR_HARDWARE_AFFINITY:
                 rhsa = container_of(header, struct acpi_dmar_rhsa, header);
-                printk(KERN_INFO PREFIX "RHSA base: %#016Lx proximity domain: %#x\n",
+                pr_info("RHSA base: %#016Lx proximity domain: %#x\n",
                        (unsigned long long)rhsa->base_address,
                        rhsa->proximity_domain);
                 break;
@@ -299,7 +290,7 @@ static int __init dmar_table_detect(void)
                                 &dmar_tbl_size);
 
         if (ACPI_SUCCESS(status) && !dmar_tbl) {
-                printk (KERN_WARNING PREFIX "Unable to map DMAR\n");
+                pr_warn("Unable to map DMAR\n");
                 status = AE_NOT_FOUND;
         }
 
@@ -333,20 +324,18 @@ parse_dmar_table(void)
                 return -ENODEV;
 
         if (dmar->width < PAGE_SHIFT - 1) {
-                printk(KERN_WARNING PREFIX "Invalid DMAR haw\n");
+                pr_warn("Invalid DMAR haw\n");
                 return -EINVAL;
         }
 
-        printk (KERN_INFO PREFIX "Host address width %d\n",
-                dmar->width + 1);
+        pr_info("Host address width %d\n", dmar->width + 1);
 
         entry_header = (struct acpi_dmar_header *)(dmar + 1);
         while (((unsigned long)entry_header) <
                         (((unsigned long)dmar) + dmar_tbl->length)) {
                 /* Avoid looping forever on bad ACPI tables */
                 if (entry_header->length == 0) {
-                        printk(KERN_WARNING PREFIX
-                                "Invalid 0-length structure\n");
+                        pr_warn("Invalid 0-length structure\n");
                         ret = -EINVAL;
                         break;
                 }
@@ -369,8 +358,7 @@ parse_dmar_table(void)
 #endif
                         break;
                 default:
-                        printk(KERN_WARNING PREFIX
-                                "Unknown DMAR structure type %d\n",
+                        pr_warn("Unknown DMAR structure type %d\n",
                                 entry_header->type);
                         ret = 0; /* for forward compatibility */
                         break;
@@ -469,12 +457,12 @@ int __init dmar_table_init(void)
         ret = parse_dmar_table();
         if (ret) {
                 if (ret != -ENODEV)
-                        printk(KERN_INFO PREFIX "parse DMAR table failure.\n");
+                        pr_info("parse DMAR table failure.\n");
                 return ret;
         }
 
         if (list_empty(&dmar_drhd_units)) {
-                printk(KERN_INFO PREFIX "No DMAR devices found\n");
+                pr_info("No DMAR devices found\n");
                 return -ENODEV;
         }
 
@@ -506,8 +494,7 @@ int __init check_zero_address(void)
                         (((unsigned long)dmar) + dmar_tbl->length)) {
                 /* Avoid looping forever on bad ACPI tables */
                 if (entry_header->length == 0) {
-                        printk(KERN_WARNING PREFIX
-                                "Invalid 0-length structure\n");
+                        pr_warn("Invalid 0-length structure\n");
                         return 0;
                 }
 
@@ -558,8 +545,7 @@ int __init detect_intel_iommu(void)
 
                 if (ret && irq_remapping_enabled && cpu_has_x2apic &&
                     dmar->flags & 0x1)
-                        printk(KERN_INFO
-                               "Queued invalidation will be enabled to support x2apic and Intr-remapping.\n");
+                        pr_info("Queued invalidation will be enabled to support x2apic and Intr-remapping.\n");
 
                 if (ret && !no_iommu && !iommu_detected && !dmar_disabled) {
                         iommu_detected = 1;
@@ -579,14 +565,89 @@ int __init detect_intel_iommu(void)
 }
 
 
+static void unmap_iommu(struct intel_iommu *iommu)
+{
+        iounmap(iommu->reg);
+        release_mem_region(iommu->reg_phys, iommu->reg_size);
+}
+
+/**
+ * map_iommu: map the iommu's registers
+ * @iommu: the iommu to map
+ * @phys_addr: the physical address of the base resgister
+ *
+ * Memory map the iommu's registers.  Start w/ a single page, and
+ * possibly expand if that turns out to be insufficent.
+ */
+static int map_iommu(struct intel_iommu *iommu, u64 phys_addr)
+{
+        int map_size, err=0;
+
+        iommu->reg_phys = phys_addr;
+        iommu->reg_size = VTD_PAGE_SIZE;
+
+        if (!request_mem_region(iommu->reg_phys, iommu->reg_size, iommu->name)) {
+                pr_err("IOMMU: can't reserve memory\n");
+                err = -EBUSY;
+                goto out;
+        }
+
+        iommu->reg = ioremap(iommu->reg_phys, iommu->reg_size);
+        if (!iommu->reg) {
+                pr_err("IOMMU: can't map the region\n");
+                err = -ENOMEM;
+                goto release;
+        }
+
+        iommu->cap = dmar_readq(iommu->reg + DMAR_CAP_REG);
+        iommu->ecap = dmar_readq(iommu->reg + DMAR_ECAP_REG);
+
+        if (iommu->cap == (uint64_t)-1 && iommu->ecap == (uint64_t)-1) {
+                err = -EINVAL;
+                warn_invalid_dmar(phys_addr, " returns all ones");
+                goto unmap;
+        }
+
+        /* the registers might be more than one page */
+        map_size = max_t(int, ecap_max_iotlb_offset(iommu->ecap),
+                         cap_max_fault_reg_offset(iommu->cap));
+        map_size = VTD_PAGE_ALIGN(map_size);
+        if (map_size > iommu->reg_size) {
+                iounmap(iommu->reg);
+                release_mem_region(iommu->reg_phys, iommu->reg_size);
+                iommu->reg_size = map_size;
+                if (!request_mem_region(iommu->reg_phys, iommu->reg_size,
+                                        iommu->name)) {
+                        pr_err("IOMMU: can't reserve memory\n");
+                        err = -EBUSY;
+                        goto out;
+                }
+                iommu->reg = ioremap(iommu->reg_phys, iommu->reg_size);
+                if (!iommu->reg) {
+                        pr_err("IOMMU: can't map the region\n");
+                        err = -ENOMEM;
+                        goto release;
+                }
+        }
+        err = 0;
+        goto out;
+
+unmap:
+        iounmap(iommu->reg);
+release:
+        release_mem_region(iommu->reg_phys, iommu->reg_size);
+out:
+        return err;
+}
+
 int alloc_iommu(struct dmar_drhd_unit *drhd)
 {
         struct intel_iommu *iommu;
-        int map_size;
         u32 ver;
         static int iommu_allocated = 0;
         int agaw = 0;
         int msagaw = 0;
+        int err;
 
         if (!drhd->reg_base_addr) {
                 warn_invalid_dmar(0, "");
@@ -600,30 +661,22 @@ int alloc_iommu(struct dmar_drhd_unit *drhd)
         iommu->seq_id = iommu_allocated++;
         sprintf (iommu->name, "dmar%d", iommu->seq_id);
 
-        iommu->reg = ioremap(drhd->reg_base_addr, VTD_PAGE_SIZE);
-        if (!iommu->reg) {
-                printk(KERN_ERR "IOMMU: can't map the region\n");
+        err = map_iommu(iommu, drhd->reg_base_addr);
+        if (err) {
+                pr_err("IOMMU: failed to map %s\n", iommu->name);
                 goto error;
         }
-        iommu->cap = dmar_readq(iommu->reg + DMAR_CAP_REG);
-        iommu->ecap = dmar_readq(iommu->reg + DMAR_ECAP_REG);
-
-        if (iommu->cap == (uint64_t)-1 && iommu->ecap == (uint64_t)-1) {
-                warn_invalid_dmar(drhd->reg_base_addr, " returns all ones");
-                goto err_unmap;
-        }
 
+        err = -EINVAL;
         agaw = iommu_calculate_agaw(iommu);
         if (agaw < 0) {
-                printk(KERN_ERR
-                       "Cannot get a valid agaw for iommu (seq_id = %d)\n",
-                       iommu->seq_id);
+                pr_err("Cannot get a valid agaw for iommu (seq_id = %d)\n",
+                        iommu->seq_id);
                 goto err_unmap;
         }
         msagaw = iommu_calculate_max_sagaw(iommu);
         if (msagaw < 0) {
-                printk(KERN_ERR
-                        "Cannot get a valid max agaw for iommu (seq_id = %d)\n",
+                pr_err("Cannot get a valid max agaw for iommu (seq_id = %d)\n",
                         iommu->seq_id);
                 goto err_unmap;
         }
@@ -632,19 +685,6 @@ int alloc_iommu(struct dmar_drhd_unit *drhd)
 
         iommu->node = -1;
 
-        /* the registers might be more than one page */
-        map_size = max_t(int, ecap_max_iotlb_offset(iommu->ecap),
-                cap_max_fault_reg_offset(iommu->cap));
-        map_size = VTD_PAGE_ALIGN(map_size);
-        if (map_size > VTD_PAGE_SIZE) {
-                iounmap(iommu->reg);
-                iommu->reg = ioremap(drhd->reg_base_addr, map_size);
-                if (!iommu->reg) {
-                        printk(KERN_ERR "IOMMU: can't map the region\n");
-                        goto error;
-                }
-        }
-
         ver = readl(iommu->reg + DMAR_VER_REG);
         pr_info("IOMMU %d: reg_base_addr %llx ver %d:%d cap %llx ecap %llx\n",
                 iommu->seq_id,
@@ -659,10 +699,10 @@ int alloc_iommu(struct dmar_drhd_unit *drhd)
         return 0;
 
  err_unmap:
-        iounmap(iommu->reg);
+        unmap_iommu(iommu);
  error:
         kfree(iommu);
-        return -1;
+        return err;
 }
 
 void free_iommu(struct intel_iommu *iommu)
@@ -673,7 +713,8 @@ void free_iommu(struct intel_iommu *iommu)
         free_dmar_iommu(iommu);
 
         if (iommu->reg)
-                iounmap(iommu->reg);
+                unmap_iommu(iommu);
+
         kfree(iommu);
 }
 
@@ -710,7 +751,7 @@ static int qi_check_fault(struct intel_iommu *iommu, int index)
         if (fault & DMA_FSTS_IQE) {
                 head = readl(iommu->reg + DMAR_IQH_REG);
                 if ((head >> DMAR_IQ_SHIFT) == index) {
-                        printk(KERN_ERR "VT-d detected invalid descriptor: "
+                        pr_err("VT-d detected invalid descriptor: "
                                 "low=%llx, high=%llx\n",
                                 (unsigned long long)qi->desc[index].low,
                                 (unsigned long long)qi->desc[index].high);
@@ -1129,15 +1170,14 @@ static int dmar_fault_do_one(struct intel_iommu *iommu, int type,
         reason = dmar_get_fault_reason(fault_reason, &fault_type);
 
         if (fault_type == INTR_REMAP)
-                printk(KERN_ERR "INTR-REMAP: Request device [[%02x:%02x.%d] "
+                pr_err("INTR-REMAP: Request device [[%02x:%02x.%d] "
                        "fault index %llx\n"
                         "INTR-REMAP:[fault reason %02d] %s\n",
                         (source_id >> 8), PCI_SLOT(source_id & 0xFF),
                         PCI_FUNC(source_id & 0xFF), addr >> 48,
                         fault_reason, reason);
         else
-                printk(KERN_ERR
-                       "DMAR:[%s] Request device [%02x:%02x.%d] "
+                pr_err("DMAR:[%s] Request device [%02x:%02x.%d] "
                        "fault addr %llx \n"
                        "DMAR:[fault reason %02d] %s\n",
                        (type ? "DMA Read" : "DMA Write"),
@@ -1157,8 +1197,7 @@ irqreturn_t dmar_fault(int irq, void *dev_id)
         raw_spin_lock_irqsave(&iommu->register_lock, flag);
         fault_status = readl(iommu->reg + DMAR_FSTS_REG);
         if (fault_status)
-                printk(KERN_ERR "DRHD: handling fault status reg %x\n",
-                       fault_status);
+                pr_err("DRHD: handling fault status reg %x\n", fault_status);
 
         /* TBD: ignore advanced fault log currently */
         if (!(fault_status & DMA_FSTS_PPF))
@@ -1224,7 +1263,7 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
 
         irq = create_irq();
         if (!irq) {
-                printk(KERN_ERR "IOMMU: no free vectors\n");
+                pr_err("IOMMU: no free vectors\n");
                 return -EINVAL;
         }
 
@@ -1241,7 +1280,7 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
 
         ret = request_irq(irq, dmar_fault, IRQF_NO_THREAD, iommu->name, iommu);
         if (ret)
-                printk(KERN_ERR "IOMMU: can't request irq\n");
+                pr_err("IOMMU: can't request irq\n");
         return ret;
 }
 
@@ -1258,8 +1297,7 @@ int __init enable_drhd_fault_handling(void)
                 ret = dmar_set_interrupt(iommu);
 
                 if (ret) {
-                        printk(KERN_ERR "DRHD %Lx: failed to enable fault, "
-                               " interrupt, ret %d\n",
+                        pr_err("DRHD %Lx: failed to enable fault, interrupt, ret %d\n",
                                (unsigned long long)drhd->reg_base_addr, ret);
                         return -1;
                 }
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 6d347064b8b0..e0b18f3ae9a8 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -902,7 +902,6 @@ static int intel_setup_ioapic_entry(int irq,
         return 0;
 }
 
-#ifdef CONFIG_SMP
 /*
  * Migrate the IO-APIC irq in the presence of intr-remapping.
  *
@@ -924,6 +923,10 @@ intel_ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
         struct irq_cfg *cfg = data->chip_data;
         unsigned int dest, irq = data->irq;
         struct irte irte;
+        int err;
+
+        if (!config_enabled(CONFIG_SMP))
+                return -EINVAL;
 
         if (!cpumask_intersects(mask, cpu_online_mask))
                 return -EINVAL;
@@ -931,10 +934,16 @@ intel_ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
         if (get_irte(irq, &irte))
                 return -EBUSY;
 
-        if (assign_irq_vector(irq, cfg, mask))
-                return -EBUSY;
+        err = assign_irq_vector(irq, cfg, mask);
+        if (err)
+                return err;
 
-        dest = apic->cpu_mask_to_apicid_and(cfg->domain, mask);
+        err = apic->cpu_mask_to_apicid_and(cfg->domain, mask, &dest);
+        if (err) {
+                if (assign_irq_vector(irq, cfg, data->affinity))
+                        pr_err("Failed to recover vector for irq %d\n", irq);
+                return err;
+        }
 
         irte.vector = cfg->vector;
         irte.dest_id = IRTE_DEST(dest);
@@ -956,7 +965,6 @@ intel_ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
         cpumask_copy(data->affinity, mask);
         return 0;
 }
-#endif
 
 static void intel_compose_msi_msg(struct pci_dev *pdev,
                                   unsigned int irq, unsigned int dest,
@@ -1058,9 +1066,7 @@ struct irq_remap_ops intel_irq_remap_ops = {
         .reenable               = reenable_irq_remapping,
         .enable_faulting        = enable_drhd_fault_handling,
         .setup_ioapic_entry     = intel_setup_ioapic_entry,
-#ifdef CONFIG_SMP
         .set_affinity           = intel_ioapic_set_affinity,
-#endif
         .free_irq               = free_irte,
         .compose_msi_msg        = intel_compose_msi_msg,
         .msi_alloc_irq          = intel_msi_alloc_irq,
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 40cda8e98d87..1d29b1c66e72 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -111,16 +111,15 @@ int setup_ioapic_remapped_entry(int irq,
                                              vector, attr);
 }
 
-#ifdef CONFIG_SMP
 int set_remapped_irq_affinity(struct irq_data *data, const struct cpumask *mask,
                               bool force)
 {
-        if (!remap_ops || !remap_ops->set_affinity)
+        if (!config_enabled(CONFIG_SMP) || !remap_ops ||
+            !remap_ops->set_affinity)
                 return 0;
 
         return remap_ops->set_affinity(data, mask, force);
 }
-#endif
 
 void free_remapped_irq(int irq)
 {
diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h
index be9d72950c51..b12974cc1dfe 100644
--- a/drivers/iommu/irq_remapping.h
+++ b/drivers/iommu/irq_remapping.h
@@ -59,11 +59,9 @@ struct irq_remap_ops {
                                   unsigned int, int,
                                   struct io_apic_irq_attr *);
 
-#ifdef CONFIG_SMP
         /* Set the CPU affinity of a remapped interrupt */
         int (*set_affinity)(struct irq_data *data, const struct cpumask *mask,
                             bool force);
-#endif
 
         /* Free an IRQ */
         int (*free_irq)(int);
diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c
index 1a0ae4445ff2..5f21f629b7ae 100644
--- a/drivers/isdn/mISDN/stack.c
+++ b/drivers/isdn/mISDN/stack.c
@@ -135,8 +135,8 @@ send_layer2(struct mISDNstack *st, struct sk_buff *skb)
                         skb = NULL;
                 else if (*debug & DEBUG_SEND_ERR)
                         printk(KERN_DEBUG
-                               "%s ch%d mgr prim(%x) addr(%x) err %d\n",
-                               __func__, ch->nr, hh->prim, ch->addr, ret);
+                               "%s mgr prim(%x) err %d\n",
+                               __func__, hh->prim, ret);
         }
 out:
         mutex_unlock(&st->lmutex);
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index d039de8322f0..b58b7a33914a 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1084,6 +1084,7 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         ti->split_io = dm_rh_get_region_size(ms->rh);
         ti->num_flush_requests = 1;
         ti->num_discard_requests = 1;
+        ti->discard_zeroes_data_unsupported = 1;
 
         ms->kmirrord_wq = alloc_workqueue("kmirrord",
                                           WQ_NON_REENTRANT | WQ_MEM_RECLAIM, 0);
@@ -1214,7 +1215,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio,
          * We need to dec pending if this was a write.
          */
         if (rw == WRITE) {
-                if (!(bio->bi_rw & REQ_FLUSH))
+                if (!(bio->bi_rw & (REQ_FLUSH | REQ_DISCARD)))
                         dm_rh_dec(ms->rh, map_context->ll);
                 return error;
         }
diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c
index 7771ed212182..69732e03eb34 100644
--- a/drivers/md/dm-region-hash.c
+++ b/drivers/md/dm-region-hash.c
@@ -404,6 +404,9 @@ void dm_rh_mark_nosync(struct dm_region_hash *rh, struct bio *bio)
                 return;
         }
 
+        if (bio->bi_rw & REQ_DISCARD)
+                return;
+
         /* We must inform the log that the sync count has changed. */
         log->type->set_region_sync(log, region, 0);
 
@@ -524,7 +527,7 @@ void dm_rh_inc_pending(struct dm_region_hash *rh, struct bio_list *bios)
         struct bio *bio;
 
         for (bio = bios->head; bio; bio = bio->bi_next) {
-                if (bio->bi_rw & REQ_FLUSH)
+                if (bio->bi_rw & (REQ_FLUSH | REQ_DISCARD))
                         continue;
                 rh_inc(rh, dm_rh_bio_to_region(rh, bio));
         }
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index ce59824fb414..68694da0d21d 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -1245,7 +1245,10 @@ static void process_discard(struct thin_c *tc, struct bio *bio)
 
                         cell_release_singleton(cell, bio);
                         cell_release_singleton(cell2, bio);
-                        remap_and_issue(tc, bio, lookup_result.block);
+                        if ((!lookup_result.shared) && pool->pf.discard_passdown)
+                                remap_and_issue(tc, bio, lookup_result.block);
+                        else
+                                bio_endio(bio, 0);
                 }
                 break;
 
@@ -2628,6 +2631,7 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
         if (tc->pool->pf.discard_enabled) {
                 ti->discards_supported = 1;
                 ti->num_discard_requests = 1;
+                ti->discard_zeroes_data_unsupported = 1;
         }
 
         dm_put(pool_md);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index a4c219e3c859..d5ab4493c8be 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2931,6 +2931,7 @@ offset_store(struct md_rdev *rdev, const char *buf, size_t len)
                  * can be sane */
                 return -EBUSY;
         rdev->data_offset = offset;
+        rdev->new_data_offset = offset;
         return len;
 }
 
@@ -3926,8 +3927,8 @@ array_state_show(struct mddev *mddev, char *page)
         return sprintf(page, "%s\n", array_states[st]);
 }
 
-static int do_md_stop(struct mddev * mddev, int ro, int is_open);
-static int md_set_readonly(struct mddev * mddev, int is_open);
+static int do_md_stop(struct mddev * mddev, int ro, struct block_device *bdev);
+static int md_set_readonly(struct mddev * mddev, struct block_device *bdev);
 static int do_md_run(struct mddev * mddev);
 static int restart_array(struct mddev *mddev);
 
@@ -3943,14 +3944,14 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len)
                 /* stopping an active array */
                 if (atomic_read(&mddev->openers) > 0)
                         return -EBUSY;
-                err = do_md_stop(mddev, 0, 0);
+                err = do_md_stop(mddev, 0, NULL);
                 break;
         case inactive:
                 /* stopping an active array */
                 if (mddev->pers) {
                         if (atomic_read(&mddev->openers) > 0)
                                 return -EBUSY;
-                        err = do_md_stop(mddev, 2, 0);
+                        err = do_md_stop(mddev, 2, NULL);
                 } else
                         err = 0; /* already inactive */
                 break;
@@ -3958,7 +3959,7 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len)
                 break; /* not supported yet */
         case readonly:
                 if (mddev->pers)
-                        err = md_set_readonly(mddev, 0);
+                        err = md_set_readonly(mddev, NULL);
                 else {
                         mddev->ro = 1;
                         set_disk_ro(mddev->gendisk, 1);
@@ -3968,7 +3969,7 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len)
         case read_auto:
                 if (mddev->pers) {
                         if (mddev->ro == 0)
-                                err = md_set_readonly(mddev, 0);
+                                err = md_set_readonly(mddev, NULL);
                         else if (mddev->ro == 1)
                                 err = restart_array(mddev);
                         if (err == 0) {
@@ -5351,15 +5352,17 @@ void md_stop(struct mddev *mddev)
 }
 EXPORT_SYMBOL_GPL(md_stop);
 
-static int md_set_readonly(struct mddev *mddev, int is_open)
+static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
 {
         int err = 0;
         mutex_lock(&mddev->open_mutex);
-        if (atomic_read(&mddev->openers) > is_open) {
+        if (atomic_read(&mddev->openers) > !!bdev) {
                 printk("md: %s still in use.\n",mdname(mddev));
                 err = -EBUSY;
                 goto out;
         }
+        if (bdev)
+                sync_blockdev(bdev);
         if (mddev->pers) {
                 __md_stop_writes(mddev);
 
@@ -5381,18 +5384,26 @@ out:
  *   0 - completely stop and dis-assemble array
  *   2 - stop but do not disassemble array
  */
-static int do_md_stop(struct mddev * mddev, int mode, int is_open)
+static int do_md_stop(struct mddev * mddev, int mode,
+                      struct block_device *bdev)
 {
         struct gendisk *disk = mddev->gendisk;
         struct md_rdev *rdev;
 
         mutex_lock(&mddev->open_mutex);
-        if (atomic_read(&mddev->openers) > is_open ||
+        if (atomic_read(&mddev->openers) > !!bdev ||
             mddev->sysfs_active) {
                 printk("md: %s still in use.\n",mdname(mddev));
                 mutex_unlock(&mddev->open_mutex);
                 return -EBUSY;
         }
+        if (bdev)
+                /* It is possible IO was issued on some other
+                 * open file which was closed before we took ->open_mutex.
+                 * As that was not the last close __blkdev_put will not
+                 * have called sync_blockdev, so we must.
+                 */
+                sync_blockdev(bdev);
 
         if (mddev->pers) {
                 if (mddev->ro)
@@ -5466,7 +5477,7 @@ static void autorun_array(struct mddev *mddev)
         err = do_md_run(mddev);
         if (err) {
                 printk(KERN_WARNING "md: do_md_run() returned %d\n", err);
-                do_md_stop(mddev, 0, 0);
+                do_md_stop(mddev, 0, NULL);
         }
 }
 
@@ -6481,11 +6492,11 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
                         goto done_unlock;
 
                 case STOP_ARRAY:
-                        err = do_md_stop(mddev, 0, 1);
+                        err = do_md_stop(mddev, 0, bdev);
                         goto done_unlock;
 
                 case STOP_ARRAY_RO:
-                        err = md_set_readonly(mddev, 1);
+                        err = md_set_readonly(mddev, bdev);
                         goto done_unlock;
 
                 case BLKROSET:
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 240ff3125040..cacd008d6864 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1818,8 +1818,14 @@ static void sync_request_write(struct mddev *mddev, struct r1bio *r1_bio)
 
         if (atomic_dec_and_test(&r1_bio->remaining)) {
                 /* if we're here, all write(s) have completed, so clean up */
-                md_done_sync(mddev, r1_bio->sectors, 1);
-                put_buf(r1_bio);
+                int s = r1_bio->sectors;
+                if (test_bit(R1BIO_MadeGood, &r1_bio->state) ||
+                    test_bit(R1BIO_WriteError, &r1_bio->state))
+                        reschedule_retry(r1_bio);
+                else {
+                        put_buf(r1_bio);
+                        md_done_sync(mddev, s, 1);
+                }
         }
 }
 
diff --git a/drivers/media/video/cx25821/cx25821-core.c b/drivers/media/video/cx25821/cx25821-core.c
index 83c1aa6b2e6c..f11f6f07e915 100644
--- a/drivers/media/video/cx25821/cx25821-core.c
+++ b/drivers/media/video/cx25821/cx25821-core.c
@@ -904,9 +904,6 @@ static int cx25821_dev_setup(struct cx25821_dev *dev)
         list_add_tail(&dev->devlist, &cx25821_devlist);
         mutex_unlock(&cx25821_devlist_mutex);
 
-        strcpy(cx25821_boards[UNKNOWN_BOARD].name, "unknown");
-        strcpy(cx25821_boards[CX25821_BOARD].name, "cx25821");
-
         if (dev->pci->device != 0x8210) {
                 pr_info("%s(): Exiting. Incorrect Hardware device = 0x%02x\n",
                         __func__, dev->pci->device);
diff --git a/drivers/media/video/cx25821/cx25821.h b/drivers/media/video/cx25821/cx25821.h
index b9aa801b00a7..029f2934a6d8 100644
--- a/drivers/media/video/cx25821/cx25821.h
+++ b/drivers/media/video/cx25821/cx25821.h
@@ -187,7 +187,7 @@ enum port {
 };
 
 struct cx25821_board {
-        char *name;
+        const char *name;
         enum port porta;
         enum port portb;
         enum port portc;
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 83dbb2ddff10..0cbada18f6f5 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -681,6 +681,7 @@ static void determine_valid_ioctls(struct video_device *vdev)
         SET_VALID_IOCTL(ops, VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings);
         SET_VALID_IOCTL(ops, VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings);
         SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings);
+        SET_VALID_IOCTL(ops, VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap);
         /* yes, really vidioc_subscribe_event */
         SET_VALID_IOCTL(ops, VIDIOC_DQEVENT, vidioc_subscribe_event);
         SET_VALID_IOCTL(ops, VIDIOC_SUBSCRIBE_EVENT, vidioc_subscribe_event);
diff --git a/drivers/net/bonding/bond_debugfs.c b/drivers/net/bonding/bond_debugfs.c
index 3680aa251dea..2cf084eb9d52 100644
--- a/drivers/net/bonding/bond_debugfs.c
+++ b/drivers/net/bonding/bond_debugfs.c
@@ -6,7 +6,7 @@
 #include "bonding.h"
 #include "bond_alb.h"
 
-#ifdef CONFIG_DEBUG_FS
+#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_NET_NS)
 
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index b9c2ae62166d..2ee76993f052 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3227,6 +3227,12 @@ static int bond_master_netdev_event(unsigned long event,
         switch (event) {
         case NETDEV_CHANGENAME:
                 return bond_event_changename(event_bond);
+        case NETDEV_UNREGISTER:
+                bond_remove_proc_entry(event_bond);
+                break;
+        case NETDEV_REGISTER:
+                bond_create_proc_entry(event_bond);
+                break;
         default:
                 break;
         }
@@ -4411,8 +4417,6 @@ static void bond_uninit(struct net_device *bond_dev)
 
         bond_work_cancel_all(bond);
 
-        bond_remove_proc_entry(bond);
-
         bond_debug_unregister(bond);
 
         __hw_addr_flush(&bond->mc_list);
@@ -4814,7 +4818,6 @@ static int bond_init(struct net_device *bond_dev)
 
         bond_set_lockdep_class(bond_dev);
 
-        bond_create_proc_entry(bond);
         list_add_tail(&bond->bond_list, &bn->dev_list);
 
         bond_prepare_sysfs_group(bond);
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 9cc15701101b..1f78b63d5efe 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -261,7 +261,6 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter)
         if ((phy_data & BMSR_LSTATUS) == 0) {
                 /* link down */
                 netif_carrier_off(netdev);
-                netif_stop_queue(netdev);
                 hw->hibernate = true;
                 if (atl1c_reset_mac(hw) != 0)
                         if (netif_msg_hw(adapter))
diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 46b8b7d81633..d09c6b583d17 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -656,7 +656,7 @@ static int b44_alloc_rx_skb(struct b44 *bp, int src_idx, u32 dest_idx_unmasked)
                         dma_unmap_single(bp->sdev->dma_dev, mapping,
                                              RX_PKT_BUF_SZ, DMA_FROM_DEVICE);
                 dev_kfree_skb_any(skb);
-                skb = __netdev_alloc_skb(bp->dev, RX_PKT_BUF_SZ, GFP_ATOMIC|GFP_DMA);
+                skb = alloc_skb(RX_PKT_BUF_SZ, GFP_ATOMIC | GFP_DMA);
                 if (skb == NULL)
                         return -ENOMEM;
                 mapping = dma_map_single(bp->sdev->dma_dev, skb->data,
@@ -967,7 +967,7 @@ static netdev_tx_t b44_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         dma_unmap_single(bp->sdev->dma_dev, mapping, len,
                                              DMA_TO_DEVICE);
 
-                bounce_skb = __netdev_alloc_skb(dev, len, GFP_ATOMIC | GFP_DMA);
+                bounce_skb = alloc_skb(len, GFP_ATOMIC | GFP_DMA);
                 if (!bounce_skb)
                         goto err_out;
 
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index ac7b74488531..1fa4927a45b1 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -5372,7 +5372,7 @@ bnx2_free_tx_skbs(struct bnx2 *bp)
                         int k, last;
 
                         if (skb == NULL) {
-                                j++;
+                                j = NEXT_TX_BD(j);
                                 continue;
                         }
 
@@ -5384,8 +5384,8 @@ bnx2_free_tx_skbs(struct bnx2 *bp)
                         tx_buf->skb = NULL;
 
                         last = tx_buf->nr_frags;
-                        j++;
-                        for (k = 0; k < last; k++, j++) {
+                        j = NEXT_TX_BD(j);
+                        for (k = 0; k < last; k++, j = NEXT_TX_BD(j)) {
                                 tx_buf = &txr->tx_buf_ring[TX_RING_IDX(j)];
                                 dma_unmap_page(&bp->pdev->dev,
                                         dma_unmap_addr(tx_buf, mapping),
diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index c95e7b5e2b85..2c89d17cbb29 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -534,7 +534,8 @@ int cnic_unregister_driver(int ulp_type)
         }
 
         if (atomic_read(&ulp_ops->ref_count) != 0)
-                netdev_warn(dev->netdev, "Failed waiting for ref count to go to zero\n");
+                pr_warn("%s: Failed waiting for ref count to go to zero\n",
+                        __func__);
         return 0;
 
 out_unlock:
@@ -1053,12 +1054,13 @@ static int cnic_init_uio(struct cnic_dev *dev)
 
         uinfo = &udev->cnic_uinfo;
 
-        uinfo->mem[0].addr = dev->netdev->base_addr;
+        uinfo->mem[0].addr = pci_resource_start(dev->pcidev, 0);
         uinfo->mem[0].internal_addr = dev->regview;
-        uinfo->mem[0].size = dev->netdev->mem_end - dev->netdev->mem_start;
         uinfo->mem[0].memtype = UIO_MEM_PHYS;
 
         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
+                uinfo->mem[0].size = MB_GET_CID_ADDR(TX_TSS_CID +
+                                                     TX_MAX_TSS_RINGS + 1);
                 uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen &
                                         PAGE_MASK;
                 if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
@@ -1068,6 +1070,8 @@ static int cnic_init_uio(struct cnic_dev *dev)
 
                 uinfo->name = "bnx2_cnic";
         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
+                uinfo->mem[0].size = pci_resource_len(dev->pcidev, 0);
+
                 uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk &
                         PAGE_MASK;
                 uinfo->mem[1].size = sizeof(*cp->bnx2x_def_status_blk);
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index f2db8fca46a1..ab1d80ff0791 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2063,10 +2063,9 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         return NETDEV_TX_OK;
                 }
 
-                /* Steal sock reference for processing TX time stamps */
-                swap(skb_new->sk, skb->sk);
-                swap(skb_new->destructor, skb->destructor);
-                kfree_skb(skb);
+                if (skb->sk)
+                        skb_set_owner_w(skb_new, skb->sk);
+                consume_skb(skb);
                 skb = skb_new;
         }
 
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c
index 36db4df09aed..1f063dcd8f85 100644
--- a/drivers/net/ethernet/intel/e1000e/82571.c
+++ b/drivers/net/ethernet/intel/e1000e/82571.c
@@ -1572,6 +1572,9 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
         ctrl = er32(CTRL);
         status = er32(STATUS);
         rxcw = er32(RXCW);
+        /* SYNCH bit and IV bit are sticky */
+        udelay(10);
+        rxcw = er32(RXCW);
 
         if ((rxcw & E1000_RXCW_SYNCH) && !(rxcw & E1000_RXCW_IV)) {
 
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 238ab2f8a5e7..e3a7b07df629 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -325,24 +325,46 @@ static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val)
  **/
 static bool e1000_phy_is_accessible_pchlan(struct e1000_hw *hw)
 {
-        u16 phy_reg;
-        u32 phy_id;
+        u16 phy_reg = 0;
+        u32 phy_id = 0;
+        s32 ret_val;
+        u16 retry_count;
+
+        for (retry_count = 0; retry_count < 2; retry_count++) {
+                ret_val = e1e_rphy_locked(hw, PHY_ID1, &phy_reg);
+                if (ret_val || (phy_reg == 0xFFFF))
+                        continue;
+                phy_id = (u32)(phy_reg << 16);
 
-        e1e_rphy_locked(hw, PHY_ID1, &phy_reg);
-        phy_id = (u32)(phy_reg << 16);
-        e1e_rphy_locked(hw, PHY_ID2, &phy_reg);
-        phy_id |= (u32)(phy_reg & PHY_REVISION_MASK);
+                ret_val = e1e_rphy_locked(hw, PHY_ID2, &phy_reg);
+                if (ret_val || (phy_reg == 0xFFFF)) {
+                        phy_id = 0;
+                        continue;
+                }
+                phy_id |= (u32)(phy_reg & PHY_REVISION_MASK);
+                break;
+        }
 
         if (hw->phy.id) {
                 if (hw->phy.id == phy_id)
                         return true;
-        } else {
-                if ((phy_id != 0) && (phy_id != PHY_REVISION_MASK))
-                        hw->phy.id = phy_id;
+        } else if (phy_id) {
+                hw->phy.id = phy_id;
+                hw->phy.revision = (u32)(phy_reg & ~PHY_REVISION_MASK);
                 return true;
         }
 
-        return false;
+        /*
+         * In case the PHY needs to be in mdio slow mode,
+         * set slow mode and try to get the PHY id again.
+         */
+        hw->phy.ops.release(hw);
+        ret_val = e1000_set_mdio_slow_mode_hv(hw);
+        if (!ret_val)
+                ret_val = e1000e_get_phy_id(hw);
+        hw->phy.ops.acquire(hw);
+
+        return !ret_val;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 18ca3bcadf0c..e242104ab471 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -6647,6 +6647,11 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc)
                 return -EINVAL;
         }
 
+        if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
+                e_err(drv, "Enable failed, SR-IOV enabled\n");
+                return -EINVAL;
+        }
+
         /* Hardware supports up to 8 traffic classes */
         if (tc > adapter->dcb_cfg.num_tcs.pg_tcs ||
             (hw->mac.type == ixgbe_mac_82598EB &&
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index f69ec4288b10..41e32257a4e8 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -201,6 +201,9 @@ static bool ixgbevf_clean_tx_irq(struct ixgbevf_adapter *adapter,
         unsigned int i, eop, count = 0;
         unsigned int total_bytes = 0, total_packets = 0;
 
+        if (test_bit(__IXGBEVF_DOWN, &adapter->state))
+                return true;
+
         i = tx_ring->next_to_clean;
         eop = tx_ring->tx_buffer_info[i].next_to_watch;
         eop_desc = IXGBE_TX_DESC_ADV(*tx_ring, eop);
@@ -969,8 +972,6 @@ static irqreturn_t ixgbevf_msix_clean_tx(int irq, void *data)
         r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues);
         for (i = 0; i < q_vector->txr_count; i++) {
                 tx_ring = &(adapter->tx_ring[r_idx]);
-                tx_ring->total_bytes = 0;
-                tx_ring->total_packets = 0;
                 ixgbevf_clean_tx_irq(adapter, tx_ring);
                 r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues,
                                       r_idx + 1);
@@ -994,16 +995,6 @@ static irqreturn_t ixgbevf_msix_clean_rx(int irq, void *data)
         struct ixgbe_hw *hw = &adapter->hw;
         struct ixgbevf_ring  *rx_ring;
         int r_idx;
-        int i;
-
-        r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues);
-        for (i = 0; i < q_vector->rxr_count; i++) {
-                rx_ring = &(adapter->rx_ring[r_idx]);
-                rx_ring->total_bytes = 0;
-                rx_ring->total_packets = 0;
-                r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues,
-                                      r_idx + 1);
-        }
 
         if (!q_vector->rxr_count)
                 return IRQ_HANDLED;
diff --git a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
index fb8377da1687..4b785e10f2ed 100644
--- a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
+++ b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
@@ -51,7 +51,7 @@ static unsigned int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
                 desc->des3 = desc->des2 + BUF_SIZE_4KiB;
                 priv->hw->desc->prepare_tx_desc(desc, 1, bmax,
                                                 csum);
-
+                wmb();
                 entry = (++priv->cur_tx) % txsize;
                 desc = priv->dma_tx + entry;
 
@@ -59,6 +59,7 @@ static unsigned int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
                                             len, DMA_TO_DEVICE);
                 desc->des3 = desc->des2 + BUF_SIZE_4KiB;
                 priv->hw->desc->prepare_tx_desc(desc, 0, len, csum);
+                wmb();
                 priv->hw->desc->set_tx_owner(desc);
                 priv->tx_skbuff[entry] = NULL;
         } else {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 51b3b68528ee..ea3003edde18 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1212,6 +1212,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
                 priv->hw->desc->prepare_tx_desc(desc, 0, len, csum_insertion);
                 wmb();
                 priv->hw->desc->set_tx_owner(desc);
+                wmb();
         }
 
         /* Interrupt on completition only for the latest segment */
@@ -1227,6 +1228,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 
         /* To avoid raise condition */
         priv->hw->desc->set_tx_owner(first);
+        wmb();
 
         priv->cur_tx++;
 
@@ -1290,6 +1292,7 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv)
                 }
                 wmb();
                 priv->hw->desc->set_rx_owner(p + entry);
+                wmb();
         }
 }
 
diff --git a/drivers/net/phy/mdio-mux.c b/drivers/net/phy/mdio-mux.c
index 39ea0674dcde..5c120189ec86 100644
--- a/drivers/net/phy/mdio-mux.c
+++ b/drivers/net/phy/mdio-mux.c
@@ -46,7 +46,13 @@ static int mdio_mux_read(struct mii_bus *bus, int phy_id, int regnum)
         struct mdio_mux_parent_bus *pb = cb->parent;
         int r;
 
-        mutex_lock(&pb->mii_bus->mdio_lock);
+        /* In theory multiple mdio_mux could be stacked, thus creating
+         * more than a single level of nesting.  But in practice,
+         * SINGLE_DEPTH_NESTING will cover the vast majority of use
+         * cases.  We use it, instead of trying to handle the general
+         * case.
+         */
+        mutex_lock_nested(&pb->mii_bus->mdio_lock, SINGLE_DEPTH_NESTING);
         r = pb->switch_fn(pb->current_child, cb->bus_number, pb->switch_data);
         if (r)
                 goto out;
@@ -71,7 +77,7 @@ static int mdio_mux_write(struct mii_bus *bus, int phy_id,
 
         int r;
 
-        mutex_lock(&pb->mii_bus->mdio_lock);
+        mutex_lock_nested(&pb->mii_bus->mdio_lock, SINGLE_DEPTH_NESTING);
         r = pb->switch_fn(pb->current_child, cb->bus_number, pb->switch_data);
         if (r)
                 goto out;
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index b01960fcfbc9..a051cedd64bd 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -346,6 +346,15 @@ static const struct driver_info	qmi_wwan_force_int1 = {
         .data           = BIT(1), /* interface whitelist bitmap */
 };
 
+static const struct driver_info qmi_wwan_force_int2 = {
+        .description    = "Qualcomm WWAN/QMI device",
+        .flags          = FLAG_WWAN,
+        .bind           = qmi_wwan_bind_shared,
+        .unbind         = qmi_wwan_unbind_shared,
+        .manage_power   = qmi_wwan_manage_power,
+        .data           = BIT(2), /* interface whitelist bitmap */
+};
+
 static const struct driver_info qmi_wwan_force_int3 = {
         .description    = "Qualcomm WWAN/QMI device",
         .flags          = FLAG_WWAN,
@@ -498,6 +507,15 @@ static const struct usb_device_id products[] = {
                 .bInterfaceProtocol = 0xff,
                 .driver_info        = (unsigned long)&qmi_wwan_force_int4,
         },
+        {       /* ZTE MF60 */
+                .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
+                .idVendor           = 0x19d2,
+                .idProduct          = 0x1402,
+                .bInterfaceClass    = 0xff,
+                .bInterfaceSubClass = 0xff,
+                .bInterfaceProtocol = 0xff,
+                .driver_info        = (unsigned long)&qmi_wwan_force_int2,
+        },
         {       /* Sierra Wireless MC77xx in QMI mode */
                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
                 .idVendor           = 0x1199,
diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c
index f1f8bd09bd87..c8baf020c20f 100644
--- a/drivers/net/wireless/b43legacy/dma.c
+++ b/drivers/net/wireless/b43legacy/dma.c
@@ -1072,7 +1072,7 @@ static int dma_tx_fragment(struct b43legacy_dmaring *ring,
         meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1);
         /* create a bounce buffer in zone_dma on mapping failure. */
         if (b43legacy_dma_mapping_error(ring, meta->dmaaddr, skb->len, 1)) {
-                bounce_skb = __dev_alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA);
+                bounce_skb = alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA);
                 if (!bounce_skb) {
                         ring->current_slot = old_top_slot;
                         ring->used_slots = old_used_slots;
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 509301a5e7e2..ff5d689e13f3 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -3405,7 +3405,7 @@ il4965_remove_dynamic_key(struct il_priv *il,
                 return 0;
         }
 
-        if (il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
+        if (il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_INVALID) {
                 IL_WARN("Removing wrong key %d 0x%x\n", keyconf->keyidx,
                         key_flags);
                 spin_unlock_irqrestore(&il->sta_lock, flags);
@@ -3420,7 +3420,7 @@ il4965_remove_dynamic_key(struct il_priv *il,
         memset(&il->stations[sta_id].sta.key, 0, sizeof(struct il4965_keyinfo));
         il->stations[sta_id].sta.key.key_flags =
             STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
-        il->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
+        il->stations[sta_id].sta.key.key_offset = keyconf->hw_key_idx;
         il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
         il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
 
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index cbf2dc18341f..5d4807c2b56d 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -4767,14 +4767,12 @@ il_bg_watchdog(unsigned long data)
                 return;
 
         /* monitor and check for other stuck queues */
-        if (il_is_any_associated(il)) {
-                for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
-                        /* skip as we already checked the command queue */
-                        if (cnt == il->cmd_queue)
-                                continue;
-                        if (il_check_stuck_queue(il, cnt))
-                                return;
-                }
+        for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
+                /* skip as we already checked the command queue */
+                if (cnt == il->cmd_queue)
+                        continue;
+                if (il_check_stuck_queue(il, cnt))
+                        return;
         }
 
         mod_timer(&il->watchdog,
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index ce61b6fae1c9..5c7fd185373c 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -958,6 +958,7 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
                 /* firmware doesn't support this type of hidden SSID */
         default:
+                kfree(bss_cfg);
                 return -EINVAL;
         }
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index d357d1ed92f6..74ecc33fdd90 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -436,8 +436,8 @@ void rt2x00usb_kick_queue(struct data_queue *queue)
         case QID_RX:
                 if (!rt2x00queue_full(queue))
                         rt2x00queue_for_each_entry(queue,
-                                                   Q_INDEX_DONE,
                                                    Q_INDEX,
+                                                   Q_INDEX_DONE,
                                                    NULL,
                                                    rt2x00usb_kick_rx_entry);
                 break;
diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c
index efc4b7f308cf..f3cfa0b9adfa 100644
--- a/drivers/oprofile/oprofile_perf.c
+++ b/drivers/oprofile/oprofile_perf.c
@@ -1,5 +1,6 @@
 /*
  * Copyright 2010 ARM Ltd.
+ * Copyright 2012 Advanced Micro Devices, Inc., Robert Richter
  *
  * Perf-events backend for OProfile.
  */
@@ -25,7 +26,7 @@ static int oprofile_perf_enabled;
 static DEFINE_MUTEX(oprofile_perf_mutex);
 
 static struct op_counter_config *counter_config;
-static struct perf_event **perf_events[NR_CPUS];
+static DEFINE_PER_CPU(struct perf_event **, perf_events);
 static int num_counters;
 
 /*
@@ -38,7 +39,7 @@ static void op_overflow_handler(struct perf_event *event,
         u32 cpu = smp_processor_id();
 
         for (id = 0; id < num_counters; ++id)
-                if (perf_events[cpu][id] == event)
+                if (per_cpu(perf_events, cpu)[id] == event)
                         break;
 
         if (id != num_counters)
@@ -74,7 +75,7 @@ static int op_create_counter(int cpu, int event)
 {
         struct perf_event *pevent;
 
-        if (!counter_config[event].enabled || perf_events[cpu][event])
+        if (!counter_config[event].enabled || per_cpu(perf_events, cpu)[event])
                 return 0;
 
         pevent = perf_event_create_kernel_counter(&counter_config[event].attr,
@@ -91,18 +92,18 @@ static int op_create_counter(int cpu, int event)
                 return -EBUSY;
         }
 
-        perf_events[cpu][event] = pevent;
+        per_cpu(perf_events, cpu)[event] = pevent;
 
         return 0;
 }
 
 static void op_destroy_counter(int cpu, int event)
 {
-        struct perf_event *pevent = perf_events[cpu][event];
+        struct perf_event *pevent = per_cpu(perf_events, cpu)[event];
 
         if (pevent) {
                 perf_event_release_kernel(pevent);
-                perf_events[cpu][event] = NULL;
+                per_cpu(perf_events, cpu)[event] = NULL;
         }
 }
 
@@ -257,12 +258,12 @@ void oprofile_perf_exit(void)
 
         for_each_possible_cpu(cpu) {
                 for (id = 0; id < num_counters; ++id) {
-                        event = perf_events[cpu][id];
+                        event = per_cpu(perf_events, cpu)[id];
                         if (event)
                                 perf_event_release_kernel(event);
                 }
 
-                kfree(perf_events[cpu]);
+                kfree(per_cpu(perf_events, cpu));
         }
 
         kfree(counter_config);
@@ -277,8 +278,6 @@ int __init oprofile_perf_init(struct oprofile_operations *ops)
         if (ret)
                 return ret;
 
-        memset(&perf_events, 0, sizeof(perf_events));
-
         num_counters = perf_num_counters();
         if (num_counters <= 0) {
                 pr_info("oprofile: no performance counters\n");
@@ -298,9 +297,9 @@ int __init oprofile_perf_init(struct oprofile_operations *ops)
         }
 
         for_each_possible_cpu(cpu) {
-                perf_events[cpu] = kcalloc(num_counters,
+                per_cpu(perf_events, cpu) = kcalloc(num_counters,
                                 sizeof(struct perf_event *), GFP_KERNEL);
-                if (!perf_events[cpu]) {
+                if (!per_cpu(perf_events, cpu)) {
                         pr_info("oprofile: failed to allocate %d perf events "
                                         "for cpu %d\n", num_counters, cpu);
                         ret = -ENOMEM;
diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c
index dd6d93aa5334..90c837f469a6 100644
--- a/drivers/pinctrl/pinctrl-imx.c
+++ b/drivers/pinctrl/pinctrl-imx.c
@@ -474,7 +474,9 @@ static int __devinit imx_pinctrl_parse_groups(struct device_node *np,
                 grp->configs[j] = config & ~IMX_PAD_SION;
         }
 
+#ifdef DEBUG
         IMX_PMX_DUMP(info, grp->pins, grp->mux_mode, grp->configs, grp->npins);
+#endif
 
         return 0;
 }
diff --git a/drivers/pinctrl/pinctrl-imx6q.c b/drivers/pinctrl/pinctrl-imx6q.c
index 7737d4d71a3c..e9bf71fbedca 100644
--- a/drivers/pinctrl/pinctrl-imx6q.c
+++ b/drivers/pinctrl/pinctrl-imx6q.c
@@ -1950,6 +1950,8 @@ static struct imx_pin_reg imx6q_pin_regs[] = {
         IMX_PIN_REG(MX6Q_PAD_SD2_DAT3, 0x0744, 0x035C, 5, 0x0000, 0), /* MX6Q_PAD_SD2_DAT3__GPIO_1_12 */
         IMX_PIN_REG(MX6Q_PAD_SD2_DAT3, 0x0744, 0x035C, 6, 0x0000, 0), /* MX6Q_PAD_SD2_DAT3__SJC_DONE */
         IMX_PIN_REG(MX6Q_PAD_SD2_DAT3, 0x0744, 0x035C, 7, 0x0000, 0), /* MX6Q_PAD_SD2_DAT3__ANATOP_TESTO_3 */
+        IMX_PIN_REG(MX6Q_PAD_ENET_RX_ER, 0x04EC, 0x01D8, 0, 0x0000, 0), /* MX6Q_PAD_ENET_RX_ER__ANATOP_USBOTG_ID */
+        IMX_PIN_REG(MX6Q_PAD_GPIO_1, 0x05F4, 0x0224, 3, 0x0000, 0), /* MX6Q_PAD_GPIO_1__ANATOP_USBOTG_ID */
 };
 
 /* Pad names for the pinmux subsystem */
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 4f20f8dd3d7c..17f6dfd8dbfb 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -694,10 +694,10 @@ MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
 static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
 {
         int ret, i;
-        unsigned long cfg;
+        int cfg;
         struct ideapad_private *priv;
 
-        if (read_method_int(adevice->handle, "_CFG", (int *)&cfg))
+        if (read_method_int(adevice->handle, "_CFG", &cfg))
                 return -ENODEV;
 
         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@@ -721,7 +721,7 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
                 goto input_failed;
 
         for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) {
-                if (test_bit(ideapad_rfk_data[i].cfgbit, &cfg))
+                if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg))
                         ideapad_register_rfkill(adevice, i);
                 else
                         priv->rfk[i] = NULL;
diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c
index 0ffdb3cde2bb..9af4257d4901 100644
--- a/drivers/platform/x86/intel_ips.c
+++ b/drivers/platform/x86/intel_ips.c
@@ -72,6 +72,7 @@
 #include <linux/string.h>
 #include <linux/tick.h>
 #include <linux/timer.h>
+#include <linux/dmi.h>
 #include <drm/i915_drm.h>
 #include <asm/msr.h>
 #include <asm/processor.h>
@@ -1485,6 +1486,24 @@ static DEFINE_PCI_DEVICE_TABLE(ips_id_table) = {
 
 MODULE_DEVICE_TABLE(pci, ips_id_table);
 
+static int ips_blacklist_callback(const struct dmi_system_id *id)
+{
+        pr_info("Blacklisted intel_ips for %s\n", id->ident);
+        return 1;
+}
+
+static const struct dmi_system_id ips_blacklist[] = {
+        {
+                .callback = ips_blacklist_callback,
+                .ident = "HP ProBook",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook"),
+                },
+        },
+        { }     /* terminating entry */
+};
+
 static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
         u64 platform_info;
@@ -1494,6 +1513,9 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id)
         u16 htshi, trc, trc_required_mask;
         u8 tse;
 
+        if (dmi_check_system(ips_blacklist))
+                return -ENODEV;
+
         ips = kzalloc(sizeof(struct ips_driver), GFP_KERNEL);
         if (!ips)
                 return -ENOMEM;
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 210d4ae547c2..d456ff0c73b7 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -973,7 +973,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev,
                                struct device_attribute *attr,
                                const char *buffer, size_t count)
 {
-        unsigned long value = 0;
+        int value;
         int ret = 0;
         struct sony_nc_value *item =
             container_of(attr, struct sony_nc_value, devattr);
@@ -984,7 +984,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev,
         if (count > 31)
                 return -EINVAL;
 
-        if (kstrtoul(buffer, 10, &value))
+        if (kstrtoint(buffer, 10, &value))
                 return -EINVAL;
 
         if (item->validate)
@@ -994,7 +994,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev,
                 return value;
 
         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
-                        (int *)&value, NULL);
+                               &value, NULL);
         if (ret < 0)
                 return -EIO;
 
@@ -1010,6 +1010,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev,
 struct sony_backlight_props {
         struct backlight_device *dev;
         int                     handle;
+        int                     cmd_base;
         u8                      offset;
         u8                      maxlvl;
 };
@@ -1037,7 +1038,7 @@ static int sony_nc_get_brightness_ng(struct backlight_device *bd)
         struct sony_backlight_props *sdev =
                 (struct sony_backlight_props *)bl_get_data(bd);
 
-        sony_call_snc_handle(sdev->handle, 0x0200, &result);
+        sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
 
         return (result & 0xff) - sdev->offset;
 }
@@ -1049,7 +1050,8 @@ static int sony_nc_update_status_ng(struct backlight_device *bd)
                 (struct sony_backlight_props *)bl_get_data(bd);
 
         value = bd->props.brightness + sdev->offset;
-        if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result))
+        if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
+                                &result))
                 return -EIO;
 
         return value;
@@ -1172,6 +1174,11 @@ static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
 /*
  * ACPI callbacks
  */
+enum event_types {
+        HOTKEY = 1,
+        KILLSWITCH,
+        GFX_SWITCH
+};
 static void sony_nc_notify(struct acpi_device *device, u32 event)
 {
         u32 real_ev = event;
@@ -1196,7 +1203,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
                 /* hotkey event */
                 case 0x0100:
                 case 0x0127:
-                        ev_type = 1;
+                        ev_type = HOTKEY;
                         real_ev = sony_nc_hotkeys_decode(event, handle);
 
                         if (real_ev > 0)
@@ -1216,7 +1223,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
                          * update the rfkill device status when the
                          * switch is moved.
                          */
-                        ev_type = 2;
+                        ev_type = KILLSWITCH;
                         sony_call_snc_handle(handle, 0x0100, &result);
                         real_ev = result & 0x03;
 
@@ -1226,6 +1233,24 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
 
                         break;
 
+                case 0x0128:
+                case 0x0146:
+                        /* Hybrid GFX switching */
+                        sony_call_snc_handle(handle, 0x0000, &result);
+                        dprintk("GFX switch event received (reason: %s)\n",
+                                        (result & 0x01) ?
+                                        "switch change" : "unknown");
+
+                        /* verify the switch state
+                         * 1: discrete GFX
+                         * 0: integrated GFX
+                         */
+                        sony_call_snc_handle(handle, 0x0100, &result);
+
+                        ev_type = GFX_SWITCH;
+                        real_ev = result & 0xff;
+                        break;
+
                 default:
                         dprintk("Unknown event 0x%x for handle 0x%x\n",
                                         event, handle);
@@ -1238,7 +1263,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
 
         } else {
                 /* old style event */
-                ev_type = 1;
+                ev_type = HOTKEY;
                 sony_laptop_report_input_event(real_ev);
         }
 
@@ -1893,32 +1918,33 @@ static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
          *  bits 4,5: store the limit into the EC
          *  bits 6,7: store the limit into the battery
          */
+        cmd = 0;
 
-        /*
-         * handle 0x0115 should allow storing on battery too;
-         * handle 0x0136 same as 0x0115 + health status;
-         * handle 0x013f, same as 0x0136 but no storing on the battery
-         *
-         * Store only inside the EC for now, regardless the handle number
-         */
-        if (value == 0)
-                /* disable limits */
-                cmd = 0x0;
+        if (value > 0) {
+                if (value <= 50)
+                        cmd = 0x20;
 
-        else if (value <= 50)
-                cmd = 0x21;
+                else if (value <= 80)
+                        cmd = 0x10;
 
-        else if (value <= 80)
-                cmd = 0x11;
+                else if (value <= 100)
+                        cmd = 0x30;
 
-        else if (value <= 100)
-                cmd = 0x31;
+                else
+                        return -EINVAL;
 
-        else
-                return -EINVAL;
+                /*
+                 * handle 0x0115 should allow storing on battery too;
+                 * handle 0x0136 same as 0x0115 + health status;
+                 * handle 0x013f, same as 0x0136 but no storing on the battery
+                 */
+                if (bcare_ctl->handle != 0x013f)
+                        cmd = cmd | (cmd << 2);
 
-        if (sony_call_snc_handle(bcare_ctl->handle, (cmd << 0x10) | 0x0100,
-                                &result))
+                cmd = (cmd | 0x1) << 0x10;
+        }
+
+        if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
                 return -EIO;
 
         return count;
@@ -2113,7 +2139,7 @@ static ssize_t sony_nc_thermal_mode_show(struct device *dev,
                 struct device_attribute *attr, char *buffer)
 {
         ssize_t count = 0;
-        unsigned int mode = sony_nc_thermal_mode_get();
+        int mode = sony_nc_thermal_mode_get();
 
         if (mode < 0)
                 return mode;
@@ -2472,6 +2498,7 @@ static void sony_nc_backlight_ng_read_limits(int handle,
 {
         u64 offset;
         int i;
+        int lvl_table_len = 0;
         u8 min = 0xff, max = 0x00;
         unsigned char buffer[32] = { 0 };
 
@@ -2480,8 +2507,6 @@ static void sony_nc_backlight_ng_read_limits(int handle,
         props->maxlvl = 0xff;
 
         offset = sony_find_snc_handle(handle);
-        if (offset < 0)
-                return;
 
         /* try to read the boundaries from ACPI tables, if we fail the above
          * defaults should be reasonable
@@ -2491,11 +2516,21 @@ static void sony_nc_backlight_ng_read_limits(int handle,
         if (i < 0)
                 return;
 
+        switch (handle) {
+        case 0x012f:
+        case 0x0137:
+                lvl_table_len = 9;
+                break;
+        case 0x143:
+                lvl_table_len = 16;
+                break;
+        }
+
         /* the buffer lists brightness levels available, brightness levels are
          * from position 0 to 8 in the array, other values are used by ALS
          * control.
          */
-        for (i = 0; i < 9 && i < ARRAY_SIZE(buffer); i++) {
+        for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
 
                 dprintk("Brightness level: %d\n", buffer[i]);
 
@@ -2520,16 +2555,24 @@ static void sony_nc_backlight_setup(void)
         const struct backlight_ops *ops = NULL;
         struct backlight_properties props;
 
-        if (sony_find_snc_handle(0x12f) != -1) {
+        if (sony_find_snc_handle(0x12f) >= 0) {
                 ops = &sony_backlight_ng_ops;
+                sony_bl_props.cmd_base = 0x0100;
                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
 
-        } else if (sony_find_snc_handle(0x137) != -1) {
+        } else if (sony_find_snc_handle(0x137) >= 0) {
                 ops = &sony_backlight_ng_ops;
+                sony_bl_props.cmd_base = 0x0100;
                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
 
+        } else if (sony_find_snc_handle(0x143) >= 0) {
+                ops = &sony_backlight_ng_ops;
+                sony_bl_props.cmd_base = 0x3000;
+                sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
+                max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
+
         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
                                                 &unused))) {
                 ops = &sony_backlight_ops;
@@ -2597,6 +2640,12 @@ static int sony_nc_add(struct acpi_device *device)
                 }
         }
 
+        result = sony_laptop_setup_input(device);
+        if (result) {
+                pr_err("Unable to create input devices\n");
+                goto outplatform;
+        }
+
         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
                                          &handle))) {
                 int arg = 1;
@@ -2614,12 +2663,6 @@ static int sony_nc_add(struct acpi_device *device)
         }
 
         /* setup input devices and helper fifo */
-        result = sony_laptop_setup_input(device);
-        if (result) {
-                pr_err("Unable to create input devices\n");
-                goto outsnc;
-        }
-
         if (acpi_video_backlight_support()) {
                 pr_info("brightness ignored, must be controlled by ACPI video driver\n");
         } else {
@@ -2667,22 +2710,21 @@ static int sony_nc_add(struct acpi_device *device)
 
         return 0;
 
-      out_sysfs:
+out_sysfs:
         for (item = sony_nc_values; item->name; ++item) {
                 device_remove_file(&sony_pf_device->dev, &item->devattr);
         }
         sony_nc_backlight_cleanup();
-
-        sony_laptop_remove_input();
-
-      outsnc:
         sony_nc_function_cleanup(sony_pf_device);
         sony_nc_handles_cleanup(sony_pf_device);
 
-      outpresent:
+outplatform:
+        sony_laptop_remove_input();
+
+outpresent:
         sony_pf_remove();
 
-      outwalk:
+outwalk:
         sony_nc_rfkill_cleanup();
         return result;
 }
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 39d3aa41adda..f56c8ba3a861 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -1085,7 +1085,7 @@ static int __init rpmsg_init(void)
 
         return ret;
 }
-module_init(rpmsg_init);
+subsys_initcall(rpmsg_init);
 
 static void __exit rpmsg_fini(void)
 {
diff --git a/drivers/scsi/scsi_wait_scan.c b/drivers/scsi/scsi_wait_scan.c
index ae7814874618..072734538876 100644
--- a/drivers/scsi/scsi_wait_scan.c
+++ b/drivers/scsi/scsi_wait_scan.c
@@ -22,11 +22,6 @@ static int __init wait_scan_init(void)
          * and might not yet have reached the scsi async scanning
          */
         wait_for_device_probe();
-        /*
-         * and then we wait for the actual asynchronous scsi scan
-         * to finish.
-         */
-        scsi_complete_async_scans();
         return 0;
 }
 
diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c
index 9888693a18fe..664f6e775d0e 100644
--- a/drivers/target/target_core_cdb.c
+++ b/drivers/target/target_core_cdb.c
@@ -1095,7 +1095,7 @@ int target_emulate_write_same(struct se_cmd *cmd)
         if (num_blocks != 0)
                 range = num_blocks;
         else
-                range = (dev->transport->get_blocks(dev) - lba);
+                range = (dev->transport->get_blocks(dev) - lba) + 1;
 
         pr_debug("WRITE_SAME UNMAP: LBA: %llu Range: %llu\n",
                  (unsigned long long)lba, (unsigned long long)range);
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 85564998500a..a1bcd927a9e6 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -2031,7 +2031,7 @@ static int __core_scsi3_write_aptpl_to_file(
         if (IS_ERR(file) || !file || !file->f_dentry) {
                 pr_err("filp_open(%s) for APTPL metadata"
                         " failed\n", path);
-                return (PTR_ERR(file) < 0 ? PTR_ERR(file) : -ENOENT);
+                return IS_ERR(file) ? PTR_ERR(file) : -ENOENT;
         }
 
         iov[0].iov_base = &buf[0];
@@ -3818,7 +3818,7 @@ int target_scsi3_emulate_pr_out(struct se_cmd *cmd)
                         " SPC-2 reservation is held, returning"
                         " RESERVATION_CONFLICT\n");
                 cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
-                ret = EINVAL;
+                ret = -EINVAL;
                 goto out;
         }
 
@@ -3828,7 +3828,8 @@ int target_scsi3_emulate_pr_out(struct se_cmd *cmd)
          */
         if (!cmd->se_sess) {
                 cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-                return -EINVAL;
+                ret = -EINVAL;
+                goto out;
         }
 
         if (cmd->data_length < 24) {
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index f03fb9730f5b..5b65f33939a8 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -230,6 +230,8 @@ u32 ft_get_task_tag(struct se_cmd *se_cmd)
 {
         struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd);
 
+        if (cmd->aborted)
+                return ~0;
         return fc_seq_exch(cmd->seq)->rxid;
 }
 
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 5b400730c213..4ee522b3f66f 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -86,7 +86,31 @@ static struct {
 #endif /* CONFIG_CIFS_WEAK_PW_HASH */
 #endif /* CIFS_POSIX */
 
-/* Forward declarations */
+#ifdef CONFIG_HIGHMEM
+/*
+ * On arches that have high memory, kmap address space is limited. By
+ * serializing the kmap operations on those arches, we ensure that we don't
+ * end up with a bunch of threads in writeback with partially mapped page
+ * arrays, stuck waiting for kmap to come back. That situation prevents
+ * progress and can deadlock.
+ */
+static DEFINE_MUTEX(cifs_kmap_mutex);
+
+static inline void
+cifs_kmap_lock(void)
+{
+        mutex_lock(&cifs_kmap_mutex);
+}
+
+static inline void
+cifs_kmap_unlock(void)
+{
+        mutex_unlock(&cifs_kmap_mutex);
+}
+#else /* !CONFIG_HIGHMEM */
+#define cifs_kmap_lock() do { ; } while(0)
+#define cifs_kmap_unlock() do { ; } while(0)
+#endif /* CONFIG_HIGHMEM */
 
 /* Mark as invalid, all open files on tree connections since they
    were closed when session to server was lost */
@@ -1503,7 +1527,9 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
         }
 
         /* marshal up the page array */
+        cifs_kmap_lock();
         len = rdata->marshal_iov(rdata, data_len);
+        cifs_kmap_unlock();
         data_len -= len;
 
         /* issue the read if we have any iovecs left to fill */
@@ -2069,7 +2095,9 @@ cifs_async_writev(struct cifs_writedata *wdata)
          * and set the iov_len properly for each one. It may also set
          * wdata->bytes too.
          */
+        cifs_kmap_lock();
         wdata->marshal_iov(iov, wdata);
+        cifs_kmap_unlock();
 
         cFYI(1, "async write at %llu %u bytes", wdata->offset, wdata->bytes);
 
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 0ae86ddf2213..94b7788c3189 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3445,6 +3445,18 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 #define CIFS_DEFAULT_NON_POSIX_RSIZE (60 * 1024)
 #define CIFS_DEFAULT_NON_POSIX_WSIZE (65536)
 
+/*
+ * On hosts with high memory, we can't currently support wsize/rsize that are
+ * larger than we can kmap at once. Cap the rsize/wsize at
+ * LAST_PKMAP * PAGE_SIZE. We'll never be able to fill a read or write request
+ * larger than that anyway.
+ */
+#ifdef CONFIG_HIGHMEM
+#define CIFS_KMAP_SIZE_LIMIT    (LAST_PKMAP * PAGE_CACHE_SIZE)
+#else /* CONFIG_HIGHMEM */
+#define CIFS_KMAP_SIZE_LIMIT    (1<<24)
+#endif /* CONFIG_HIGHMEM */
+
 static unsigned int
 cifs_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *pvolume_info)
 {
@@ -3475,6 +3487,9 @@ cifs_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *pvolume_info)
                 wsize = min_t(unsigned int, wsize,
                                 server->maxBuf - sizeof(WRITE_REQ) + 4);
 
+        /* limit to the amount that we can kmap at once */
+        wsize = min_t(unsigned int, wsize, CIFS_KMAP_SIZE_LIMIT);
+
         /* hard limit of CIFS_MAX_WSIZE */
         wsize = min_t(unsigned int, wsize, CIFS_MAX_WSIZE);
 
@@ -3516,6 +3531,9 @@ cifs_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *pvolume_info)
         if (!(server->capabilities & CAP_LARGE_READ_X))
                 rsize = min_t(unsigned int, CIFSMaxBufSize, rsize);
 
+        /* limit to the amount that we can kmap at once */
+        rsize = min_t(unsigned int, rsize, CIFS_KMAP_SIZE_LIMIT);
+
         /* hard limit of CIFS_MAX_RSIZE */
         rsize = min_t(unsigned int, rsize, CIFS_MAX_RSIZE);
 
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 0a8224d1c4c5..a4217f02fab2 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -86,9 +86,12 @@ cifs_readdir_lookup(struct dentry *parent, struct qstr *name,
 
         dentry = d_lookup(parent, name);
         if (dentry) {
-                /* FIXME: check for inode number changes? */
-                if (dentry->d_inode != NULL)
+                inode = dentry->d_inode;
+                /* update inode in place if i_ino didn't change */
+                if (inode && CIFS_I(inode)->uniqueid == fattr->cf_uniqueid) {
+                        cifs_fattr_to_inode(inode, fattr);
                         return dentry;
+                }
                 d_drop(dentry);
                 dput(dentry);
         }
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 3097ee58fd7d..f25d4ea14be4 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -365,16 +365,14 @@ cifs_setup_async_request(struct TCP_Server_Info *server, struct kvec *iov,
         if (mid == NULL)
                 return -ENOMEM;
 
-        /* put it on the pending_mid_q */
-        spin_lock(&GlobalMid_Lock);
-        list_add_tail(&mid->qhead, &server->pending_mid_q);
-        spin_unlock(&GlobalMid_Lock);
-
         rc = cifs_sign_smb2(iov, nvec, server, &mid->sequence_number);
-        if (rc)
-                delete_mid(mid);
+        if (rc) {
+                DeleteMidQEntry(mid);
+                return rc;
+        }
+
         *ret_mid = mid;
-        return rc;
+        return 0;
 }
 
 /*
@@ -407,17 +405,21 @@ cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
         mid->callback_data = cbdata;
         mid->mid_state = MID_REQUEST_SUBMITTED;
 
+        /* put it on the pending_mid_q */
+        spin_lock(&GlobalMid_Lock);
+        list_add_tail(&mid->qhead, &server->pending_mid_q);
+        spin_unlock(&GlobalMid_Lock);
+
+
         cifs_in_send_inc(server);
         rc = smb_sendv(server, iov, nvec);
         cifs_in_send_dec(server);
         cifs_save_when_sent(mid);
         mutex_unlock(&server->srv_mutex);
 
-        if (rc)
-                goto out_err;
+        if (rc == 0)
+                return 0;
 
-        return rc;
-out_err:
         delete_mid(mid);
         add_credits(server, 1);
         wake_up(&server->request_q);
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 74598f67efeb..1c8b55670804 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1710,7 +1710,7 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
                 goto error_tgt_fput;
 
         /* Check if EPOLLWAKEUP is allowed */
-        if ((epds.events & EPOLLWAKEUP) && !capable(CAP_EPOLLWAKEUP))
+        if ((epds.events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
                 epds.events &= ~EPOLLWAKEUP;
 
         /*
diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c
index 49cf230554a2..24a49d47e935 100644
--- a/fs/exofs/ore.c
+++ b/fs/exofs/ore.c
@@ -735,13 +735,7 @@ static int _prepare_for_striping(struct ore_io_state *ios)
 out:
         ios->numdevs = devs_in_group;
         ios->pages_consumed = cur_pg;
-        if (unlikely(ret)) {
-                if (length == ios->length)
-                        return ret;
-                else
-                        ios->length -= length;
-        }
-        return 0;
+        return ret;
 }
 
 int ore_create(struct ore_io_state *ios)
diff --git a/fs/exofs/ore_raid.c b/fs/exofs/ore_raid.c
index d222c77cfa1b..5f376d14fdcc 100644
--- a/fs/exofs/ore_raid.c
+++ b/fs/exofs/ore_raid.c
@@ -144,26 +144,26 @@ static void _sp2d_reset(struct __stripe_pages_2d *sp2d,
 {
         unsigned data_devs = sp2d->data_devs;
         unsigned group_width = data_devs + sp2d->parity;
-        unsigned p;
+        int p, c;
 
         if (!sp2d->needed)
                 return;
 
-        for (p = 0; p < sp2d->pages_in_unit; p++) {
-                struct __1_page_stripe *_1ps = &sp2d->_1p_stripes[p];
-
-                if (_1ps->write_count < group_width) {
-                        unsigned c;
+        for (c = data_devs - 1; c >= 0; --c)
+                for (p = sp2d->pages_in_unit - 1; p >= 0; --p) {
+                        struct __1_page_stripe *_1ps = &sp2d->_1p_stripes[p];
 
-                        for (c = 0; c < data_devs; c++)
-                                if (_1ps->page_is_read[c]) {
-                                        struct page *page = _1ps->pages[c];
+                        if (_1ps->page_is_read[c]) {
+                                struct page *page = _1ps->pages[c];
 
-                                        r4w->put_page(priv, page);
-                                        _1ps->page_is_read[c] = false;
-                                }
+                                r4w->put_page(priv, page);
+                                _1ps->page_is_read[c] = false;
+                        }
                 }
 
+        for (p = 0; p < sp2d->pages_in_unit; p++) {
+                struct __1_page_stripe *_1ps = &sp2d->_1p_stripes[p];
+
                 memset(_1ps->pages, 0, group_width * sizeof(*_1ps->pages));
                 _1ps->write_count = 0;
                 _1ps->tx = NULL;
@@ -461,16 +461,12 @@ static void _mark_read4write_pages_uptodate(struct ore_io_state *ios, int ret)
  * ios->sp2d[p][*], xor is calculated the same way. These pages are
  * allocated/freed and don't go through cache
  */
-static int _read_4_write(struct ore_io_state *ios)
+static int _read_4_write_first_stripe(struct ore_io_state *ios)
 {
-        struct ore_io_state *ios_read;
         struct ore_striping_info read_si;
         struct __stripe_pages_2d *sp2d = ios->sp2d;
         u64 offset = ios->si.first_stripe_start;
-        u64 last_stripe_end;
-        unsigned bytes_in_stripe = ios->si.bytes_in_stripe;
-        unsigned i, c, p, min_p = sp2d->pages_in_unit, max_p = -1;
-        int ret;
+        unsigned c, p, min_p = sp2d->pages_in_unit, max_p = -1;
 
         if (offset == ios->offset) /* Go to start collect $200 */
                 goto read_last_stripe;
@@ -478,6 +474,9 @@ static int _read_4_write(struct ore_io_state *ios)
         min_p = _sp2d_min_pg(sp2d);
         max_p = _sp2d_max_pg(sp2d);
 
+        ORE_DBGMSG("stripe_start=0x%llx ios->offset=0x%llx min_p=%d max_p=%d\n",
+                   offset, ios->offset, min_p, max_p);
+
         for (c = 0; ; c++) {
                 ore_calc_stripe_info(ios->layout, offset, 0, &read_si);
                 read_si.obj_offset += min_p * PAGE_SIZE;
@@ -512,6 +511,18 @@ static int _read_4_write(struct ore_io_state *ios)
         }
 
 read_last_stripe:
+        return 0;
+}
+
+static int _read_4_write_last_stripe(struct ore_io_state *ios)
+{
+        struct ore_striping_info read_si;
+        struct __stripe_pages_2d *sp2d = ios->sp2d;
+        u64 offset;
+        u64 last_stripe_end;
+        unsigned bytes_in_stripe = ios->si.bytes_in_stripe;
+        unsigned c, p, min_p = sp2d->pages_in_unit, max_p = -1;
+
         offset = ios->offset + ios->length;
         if (offset % PAGE_SIZE)
                 _add_to_r4w_last_page(ios, &offset);
@@ -527,15 +538,15 @@ read_last_stripe:
         c = _dev_order(ios->layout->group_width * ios->layout->mirrors_p1,
                        ios->layout->mirrors_p1, read_si.par_dev, read_si.dev);
 
-        BUG_ON(ios->si.first_stripe_start + bytes_in_stripe != last_stripe_end);
-        /* unaligned IO must be within a single stripe */
-
         if (min_p == sp2d->pages_in_unit) {
                 /* Didn't do it yet */
                 min_p = _sp2d_min_pg(sp2d);
                 max_p = _sp2d_max_pg(sp2d);
         }
 
+        ORE_DBGMSG("offset=0x%llx stripe_end=0x%llx min_p=%d max_p=%d\n",
+                   offset, last_stripe_end, min_p, max_p);
+
         while (offset < last_stripe_end) {
                 struct __1_page_stripe *_1ps = &sp2d->_1p_stripes[p];
 
@@ -568,6 +579,15 @@ read_last_stripe:
         }
 
 read_it:
+        return 0;
+}
+
+static int _read_4_write_execute(struct ore_io_state *ios)
+{
+        struct ore_io_state *ios_read;
+        unsigned i;
+        int ret;
+
         ios_read = ios->ios_read_4_write;
         if (!ios_read)
                 return 0;
@@ -591,6 +611,8 @@ read_it:
         }
 
         _mark_read4write_pages_uptodate(ios_read, ret);
+        ore_put_io_state(ios_read);
+        ios->ios_read_4_write = NULL; /* Might need a reuse at last stripe */
         return 0;
 }
 
@@ -626,8 +648,11 @@ int _ore_add_parity_unit(struct ore_io_state *ios,
                         /* If first stripe, Read in all read4write pages
                          * (if needed) before we calculate the first parity.
                          */
-                        _read_4_write(ios);
+                        _read_4_write_first_stripe(ios);
                 }
+                if (!cur_len) /* If last stripe r4w pages of last stripe */
+                        _read_4_write_last_stripe(ios);
+                _read_4_write_execute(ios);
 
                 for (i = 0; i < num_pages; i++) {
                         pages[i] = _raid_page_alloc();
@@ -654,34 +679,14 @@ int _ore_add_parity_unit(struct ore_io_state *ios,
 
 int _ore_post_alloc_raid_stuff(struct ore_io_state *ios)
 {
-        struct ore_layout *layout = ios->layout;
-
         if (ios->parity_pages) {
+                struct ore_layout *layout = ios->layout;
                 unsigned pages_in_unit = layout->stripe_unit / PAGE_SIZE;
-                unsigned stripe_size = ios->si.bytes_in_stripe;
-                u64 last_stripe, first_stripe;
 
                 if (_sp2d_alloc(pages_in_unit, layout->group_width,
                                 layout->parity, &ios->sp2d)) {
                         return -ENOMEM;
                 }
-
-                /* Round io down to last full strip */
-                first_stripe = div_u64(ios->offset, stripe_size);
-                last_stripe = div_u64(ios->offset + ios->length, stripe_size);
-
-                /* If an IO spans more then a single stripe it must end at
-                 * a stripe boundary. The reminder at the end is pushed into the
-                 * next IO.
-                 */
-                if (last_stripe != first_stripe) {
-                        ios->length = last_stripe * stripe_size - ios->offset;
-
-                        BUG_ON(!ios->length);
-                        ios->nr_pages = (ios->length + PAGE_SIZE - 1) /
-                                        PAGE_SIZE;
-                        ios->si.length = ios->length; /*make it consistent */
-                }
         }
         return 0;
 }
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index e34deac3f366..6ec6f9ee2fec 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -268,7 +268,6 @@ group_extend_out:
                 err = ext4_move_extents(filp, donor_filp, me.orig_start,
                                         me.donor_start, me.len, &me.moved_len);
                 mnt_drop_write_file(filp);
-                mnt_drop_write(filp->f_path.mnt);
 
                 if (copy_to_user((struct move_extent __user *)arg,
                                  &me, sizeof(me)))
diff --git a/fs/fifo.c b/fs/fifo.c
index b1a524d798e7..cf6f4345ceb0 100644
--- a/fs/fifo.c
+++ b/fs/fifo.c
@@ -14,7 +14,7 @@
 #include <linux/sched.h>
 #include <linux/pipe_fs_i.h>
 
-static void wait_for_partner(struct inode* inode, unsigned int *cnt)
+static int wait_for_partner(struct inode* inode, unsigned int *cnt)
 {
         int cur = *cnt; 
 
@@ -23,6 +23,7 @@ static void wait_for_partner(struct inode* inode, unsigned int *cnt)
                 if (signal_pending(current))
                         break;
         }
+        return cur == *cnt ? -ERESTARTSYS : 0;
 }
 
 static void wake_up_partner(struct inode* inode)
@@ -67,8 +68,7 @@ static int fifo_open(struct inode *inode, struct file *filp)
                                  * seen a writer */
                                 filp->f_version = pipe->w_counter;
                         } else {
-                                wait_for_partner(inode, &pipe->w_counter);
-                                if(signal_pending(current))
+                                if (wait_for_partner(inode, &pipe->w_counter))
                                         goto err_rd;
                         }
                 }
@@ -90,8 +90,7 @@ static int fifo_open(struct inode *inode, struct file *filp)
                         wake_up_partner(inode);
 
                 if (!pipe->readers) {
-                        wait_for_partner(inode, &pipe->r_counter);
-                        if (signal_pending(current))
+                        if (wait_for_partner(inode, &pipe->r_counter))
                                 goto err_wr;
                 }
                 break;
diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
index b47277baebab..f50d3e8d6f22 100644
--- a/fs/nfs/objlayout/objio_osd.c
+++ b/fs/nfs/objlayout/objio_osd.c
@@ -454,7 +454,10 @@ int objio_read_pagelist(struct nfs_read_data *rdata)
         objios->ios->done = _read_done;
         dprintk("%s: offset=0x%llx length=0x%x\n", __func__,
                 rdata->args.offset, rdata->args.count);
-        return ore_read(objios->ios);
+        ret = ore_read(objios->ios);
+        if (unlikely(ret))
+                objio_free_result(&objios->oir);
+        return ret;
 }
 
 /*
@@ -486,8 +489,16 @@ static struct page *__r4w_get_page(void *priv, u64 offset, bool *uptodate)
         struct nfs_write_data *wdata = objios->oir.rpcdata;
         struct address_space *mapping = wdata->header->inode->i_mapping;
         pgoff_t index = offset / PAGE_SIZE;
-        struct page *page = find_get_page(mapping, index);
+        struct page *page;
+        loff_t i_size = i_size_read(wdata->header->inode);
+
+        if (offset >= i_size) {
+                *uptodate = true;
+                dprintk("%s: g_zero_page index=0x%lx\n", __func__, index);
+                return ZERO_PAGE(0);
+        }
 
+        page = find_get_page(mapping, index);
         if (!page) {
                 page = find_or_create_page(mapping, index, GFP_NOFS);
                 if (unlikely(!page)) {
@@ -507,8 +518,10 @@ static struct page *__r4w_get_page(void *priv, u64 offset, bool *uptodate)
 
 static void __r4w_put_page(void *priv, struct page *page)
 {
-        dprintk("%s: index=0x%lx\n", __func__, page->index);
-        page_cache_release(page);
+        dprintk("%s: index=0x%lx\n", __func__,
+                (page == ZERO_PAGE(0)) ? -1UL : page->index);
+        if (ZERO_PAGE(0) != page)
+                page_cache_release(page);
         return;
 }
 
@@ -539,8 +552,10 @@ int objio_write_pagelist(struct nfs_write_data *wdata, int how)
         dprintk("%s: offset=0x%llx length=0x%x\n", __func__,
                 wdata->args.offset, wdata->args.count);
         ret = ore_write(objios->ios);
-        if (unlikely(ret))
+        if (unlikely(ret)) {
+                objio_free_result(&objios->oir);
                 return ret;
+        }
 
         if (objios->sync)
                 _write_done(objios->ios, objios);
diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index ef3d1ba6d992..15e2fc5aa60b 100644
--- a/fs/ubifs/sb.c
+++ b/fs/ubifs/sb.c
@@ -718,8 +718,12 @@ static int fixup_free_space(struct ubifs_info *c)
                 lnum = ubifs_next_log_lnum(c, lnum);
         }
 
-        /* Fixup the current log head */
-        err = fixup_leb(c, c->lhead_lnum, c->lhead_offs);
+        /*
+         * Fixup the log head which contains the only a CS node at the
+         * beginning.
+         */
+        err = fixup_leb(c, c->lhead_lnum,
+                        ALIGN(UBIFS_CS_NODE_SZ, c->min_io_size));
         if (err)
                 goto out;
 
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 9d1aeb7e2734..4f33c32affe3 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -1074,13 +1074,13 @@ restart:
          * If we couldn't get anything, give up.
          */
         if (bno_cur_lt == NULL && bno_cur_gt == NULL) {
+                xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
+
                 if (!forced++) {
                         trace_xfs_alloc_near_busy(args);
                         xfs_log_force(args->mp, XFS_LOG_SYNC);
                         goto restart;
                 }
-
-                xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
                 trace_xfs_alloc_size_neither(args);
                 args->agbno = NULLAGBLOCK;
                 return 0;
@@ -2434,13 +2434,22 @@ xfs_alloc_vextent_worker(
         current_restore_flags_nested(&pflags, PF_FSTRANS);
 }
 
-
-int                             /* error */
+/*
+ * Data allocation requests often come in with little stack to work on. Push
+ * them off to a worker thread so there is lots of stack to use. Metadata
+ * requests, OTOH, are generally from low stack usage paths, so avoid the
+ * context switch overhead here.
+ */
+int
 xfs_alloc_vextent(
-        xfs_alloc_arg_t *args)  /* allocation argument structure */
+        struct xfs_alloc_arg    *args)
 {
         DECLARE_COMPLETION_ONSTACK(done);
 
+        if (!args->userdata)
+                return __xfs_alloc_vextent(args);
+
+
         args->done = &done;
         INIT_WORK_ONSTACK(&args->work, xfs_alloc_vextent_worker);
         queue_work(xfs_alloc_wq, &args->work);
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index a4beb421018a..269b35c084da 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -989,27 +989,6 @@ xfs_buf_ioerror_alert(
                 (__uint64_t)XFS_BUF_ADDR(bp), func, bp->b_error, bp->b_length);
 }
 
-int
-xfs_bwrite(
-        struct xfs_buf          *bp)
-{
-        int                     error;
-
-        ASSERT(xfs_buf_islocked(bp));
-
-        bp->b_flags |= XBF_WRITE;
-        bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q);
-
-        xfs_bdstrat_cb(bp);
-
-        error = xfs_buf_iowait(bp);
-        if (error) {
-                xfs_force_shutdown(bp->b_target->bt_mount,
-                                   SHUTDOWN_META_IO_ERROR);
-        }
-        return error;
-}
-
 /*
  * Called when we want to stop a buffer from getting written or read.
  * We attach the EIO error, muck with its flags, and call xfs_buf_ioend
@@ -1079,14 +1058,7 @@ xfs_bioerror_relse(
         return EIO;
 }
 
-
-/*
- * All xfs metadata buffers except log state machine buffers
- * get this attached as their b_bdstrat callback function.
- * This is so that we can catch a buffer
- * after prematurely unpinning it to forcibly shutdown the filesystem.
- */
-int
+STATIC int
 xfs_bdstrat_cb(
         struct xfs_buf  *bp)
 {
@@ -1107,6 +1079,27 @@ xfs_bdstrat_cb(
         return 0;
 }
 
+int
+xfs_bwrite(
+        struct xfs_buf          *bp)
+{
+        int                     error;
+
+        ASSERT(xfs_buf_islocked(bp));
+
+        bp->b_flags |= XBF_WRITE;
+        bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q);
+
+        xfs_bdstrat_cb(bp);
+
+        error = xfs_buf_iowait(bp);
+        if (error) {
+                xfs_force_shutdown(bp->b_target->bt_mount,
+                                   SHUTDOWN_META_IO_ERROR);
+        }
+        return error;
+}
+
 /*
  * Wrapper around bdstrat so that we can stop data from going to disk in case
  * we are shutting down the filesystem.  Typically user data goes thru this
@@ -1243,7 +1236,7 @@ xfs_buf_iorequest(
          */
         atomic_set(&bp->b_io_remaining, 1);
         _xfs_buf_ioapply(bp);
-        _xfs_buf_ioend(bp, 0);
+        _xfs_buf_ioend(bp, 1);
 
         xfs_buf_rele(bp);
 }
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index 7f1d1392ce37..79344c48008e 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -180,7 +180,6 @@ extern void xfs_buf_unlock(xfs_buf_t *);
 extern int xfs_bwrite(struct xfs_buf *bp);
 
 extern void xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
-extern int xfs_bdstrat_cb(struct xfs_buf *);
 
 extern void xfs_buf_ioend(xfs_buf_t *,  int);
 extern void xfs_buf_ioerror(xfs_buf_t *, int);
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 45df2b857d48..d9e451115f98 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -954,7 +954,7 @@ xfs_buf_iodone_callbacks(
 
                 if (!XFS_BUF_ISSTALE(bp)) {
                         bp->b_flags |= XBF_WRITE | XBF_ASYNC | XBF_DONE;
-                        xfs_bdstrat_cb(bp);
+                        xfs_buf_iorequest(bp);
                 } else {
                         xfs_buf_relse(bp);
                 }
diff --git a/include/asm-generic/dma-contiguous.h b/include/asm-generic/dma-contiguous.h
index c544356b374b..294b1e755ab2 100644
--- a/include/asm-generic/dma-contiguous.h
+++ b/include/asm-generic/dma-contiguous.h
@@ -18,7 +18,7 @@ static inline void dev_set_cma_area(struct device *dev, struct cma *cma)
 {
         if (dev)
                 dev->cma_area = cma;
-        if (!dev || !dma_contiguous_default_area)
+        if (!dev && !dma_contiguous_default_area)
                 dma_contiguous_default_area = cma;
 }
 
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 68d56effc328..d10b7ed595b1 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -360,11 +360,11 @@ struct cpu_vfs_cap_data {
 
 #define CAP_WAKE_ALARM            35
 
-/* Allow preventing system suspends while epoll events are pending */
+/* Allow preventing system suspends */
 
-#define CAP_EPOLLWAKEUP      36
+#define CAP_BLOCK_SUSPEND    36
 
-#define CAP_LAST_CAP         CAP_EPOLLWAKEUP
+#define CAP_LAST_CAP         CAP_BLOCK_SUSPEND
 
 #define cap_valid(x) ((x) >= 0 && (x) <= CAP_LAST_CAP)
 
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 2521a95fa6d9..44c87e731e9d 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -163,16 +163,8 @@ struct ceph_connection {
 
         /* connection negotiation temps */
         char in_banner[CEPH_BANNER_MAX_LEN];
-        union {
-                struct {  /* outgoing connection */
-                        struct ceph_msg_connect out_connect;
-                        struct ceph_msg_connect_reply in_reply;
-                };
-                struct {  /* incoming */
-                        struct ceph_msg_connect in_connect;
-                        struct ceph_msg_connect_reply out_reply;
-                };
-        };
+        struct ceph_msg_connect out_connect;
+        struct ceph_msg_connect_reply in_reply;
         struct ceph_entity_addr actual_peer_addr;
 
         /* message out temps */
diff --git a/include/linux/device.h b/include/linux/device.h
index 161d96241b1b..6de94151ff6f 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -865,8 +865,6 @@ extern int (*platform_notify_remove)(struct device *dev);
 extern struct device *get_device(struct device *dev);
 extern void put_device(struct device *dev);
 
-extern void wait_for_device_probe(void);
-
 #ifdef CONFIG_DEVTMPFS
 extern int devtmpfs_create_node(struct device *dev);
 extern int devtmpfs_delete_node(struct device *dev);
diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h
index 6f8be328770a..f4bb378ccf6a 100644
--- a/include/linux/eventpoll.h
+++ b/include/linux/eventpoll.h
@@ -34,7 +34,7 @@
  * re-allowed until epoll_wait is called again after consuming the wakeup
  * event(s).
  *
- * Requires CAP_EPOLLWAKEUP
+ * Requires CAP_BLOCK_SUSPEND
  */
 #define EPOLLWAKEUP (1 << 29)
 
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 176a939d1547..af961d6f7ab1 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -65,7 +65,7 @@ struct trace_iterator {
         void                    *private;
         int                     cpu_file;
         struct mutex            mutex;
-        struct ring_buffer_iter *buffer_iter[NR_CPUS];
+        struct ring_buffer_iter **buffer_iter;
         unsigned long           iter_flags;
 
         /* trace_seq for __print_flags() and __print_symbolic() etc. */
@@ -207,6 +207,9 @@ struct ftrace_event_call {
          *   bit 1:             enabled
          *   bit 2:             filter_active
          *   bit 3:             enabled cmd record
+         *   bit 4:             allow trace by non root (cap any)
+         *   bit 5:             failed to apply filter
+         *   bit 6:             ftrace internal event (do not enable)
          *
          * Changes to flags must hold the event_mutex.
          *
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 9e65eff6af3b..8a7476186990 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -168,8 +168,8 @@ extern struct cred init_cred;
         .children       = LIST_HEAD_INIT(tsk.children),                 \
         .sibling        = LIST_HEAD_INIT(tsk.sibling),                  \
         .group_leader   = &tsk,                                         \
-        RCU_INIT_POINTER(.real_cred, &init_cred),                       \
-        RCU_INIT_POINTER(.cred, &init_cred),                            \
+        RCU_POINTER_INITIALIZER(real_cred, &init_cred),                 \
+        RCU_POINTER_INITIALIZER(cred, &init_cred),                      \
         .comm           = INIT_TASK_COMM,                               \
         .thread         = INIT_THREAD,                                  \
         .fs             = &init_fs,                                     \
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index e6ca56de9936..78e2ada50cd5 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -308,6 +308,8 @@ enum {
 
 struct intel_iommu {
         void __iomem    *reg; /* Pointer to hardware regs, virtual addr */
+        u64             reg_phys; /* physical address of hw register set */
+        u64             reg_size; /* size of hw register set */
         u64             cap;
         u64             ecap;
         u32             gcmd; /* Holds TE, EAFL. Don't need SRTP, SFL, WBF */
diff --git a/include/linux/irq.h b/include/linux/irq.h
index a5261e3d2e3c..553fb66da130 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -150,9 +150,7 @@ struct irq_data {
         void                    *handler_data;
         void                    *chip_data;
         struct msi_desc         *msi_desc;
-#ifdef CONFIG_SMP
         cpumask_var_t           affinity;
-#endif
 };
 
 /*
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index c513a40510f5..0976fc46d1e0 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -42,8 +42,7 @@
  * allowed.
  *
  * Not initializing the key (static data is initialized to 0s anyway) is the
- * same as using STATIC_KEY_INIT_FALSE and static_key_false() is
- * equivalent with static_branch().
+ * same as using STATIC_KEY_INIT_FALSE.
  *
 */
 
@@ -107,12 +106,6 @@ static __always_inline bool static_key_true(struct static_key *key)
         return !static_key_false(key);
 }
 
-/* Deprecated. Please use 'static_key_false() instead. */
-static __always_inline bool static_branch(struct static_key *key)
-{
-        return arch_static_branch(key);
-}
-
 extern struct jump_entry __start___jump_table[];
 extern struct jump_entry __stop___jump_table[];
 
@@ -166,14 +159,6 @@ static __always_inline bool static_key_true(struct static_key *key)
         return false;
 }
 
-/* Deprecated. Please use 'static_key_false() instead. */
-static __always_inline bool static_branch(struct static_key *key)
-{
-        if (unlikely(atomic_read(&key->enabled)) > 0)
-                return true;
-        return false;
-}
-
 static inline void static_key_slow_inc(struct static_key *key)
 {
         atomic_inc(&key->enabled);
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index e07f5e0c5df4..604382143bcf 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -377,7 +377,6 @@ extern enum system_states {
         SYSTEM_HALT,
         SYSTEM_POWER_OFF,
         SYSTEM_RESTART,
-        SYSTEM_SUSPEND_DISK,
 } system_state;
 
 #define TAINT_PROPRIETARY_MODULE        0
diff --git a/include/linux/key.h b/include/linux/key.h
index 4cd22ed627ef..cef3b315ba7c 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -303,7 +303,9 @@ static inline bool key_is_instantiated(const struct key *key)
                                    rwsem_is_locked(&((struct key *)(KEY))->sem)))
 
 #define rcu_assign_keypointer(KEY, PAYLOAD)                             \
-        (rcu_assign_pointer((KEY)->payload.rcudata, PAYLOAD))
+do {                                                                    \
+        rcu_assign_pointer((KEY)->payload.rcudata, (PAYLOAD));          \
+} while (0)
 
 #ifdef CONFIG_SYSCTL
 extern ctl_table key_sysctls[];
diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h
index d6bd50110ec2..2e7a1e032c71 100644
--- a/include/linux/kmsg_dump.h
+++ b/include/linux/kmsg_dump.h
@@ -55,12 +55,17 @@ struct kmsg_dumper {
 #ifdef CONFIG_PRINTK
 void kmsg_dump(enum kmsg_dump_reason reason);
 
+bool kmsg_dump_get_line_nolock(struct kmsg_dumper *dumper, bool syslog,
+                               char *line, size_t size, size_t *len);
+
 bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
                         char *line, size_t size, size_t *len);
 
 bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
                           char *buf, size_t size, size_t *len);
 
+void kmsg_dump_rewind_nolock(struct kmsg_dumper *dumper);
+
 void kmsg_dump_rewind(struct kmsg_dumper *dumper);
 
 int kmsg_dump_register(struct kmsg_dumper *dumper);
@@ -71,6 +76,13 @@ static inline void kmsg_dump(enum kmsg_dump_reason reason)
 {
 }
 
+static inline bool kmsg_dump_get_line_nolock(struct kmsg_dumper *dumper,
+                                             bool syslog, const char *line,
+                                             size_t size, size_t *len)
+{
+        return false;
+}
+
 static inline bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
                                 const char *line, size_t size, size_t *len)
 {
@@ -83,6 +95,10 @@ static inline bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
         return false;
 }
 
+static inline void kmsg_dump_rewind_nolock(struct kmsg_dumper *dumper)
+{
+}
+
 static inline void kmsg_dump_rewind(struct kmsg_dumper *dumper)
 {
 }
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index ab741b0d0074..5f187026b812 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2755,6 +2755,17 @@
 #define PCI_DEVICE_ID_INTEL_IOAT_SNB7   0x3c27
 #define PCI_DEVICE_ID_INTEL_IOAT_SNB8   0x3c2e
 #define PCI_DEVICE_ID_INTEL_IOAT_SNB9   0x3c2f
+#define PCI_DEVICE_ID_INTEL_UNC_HA      0x3c46
+#define PCI_DEVICE_ID_INTEL_UNC_IMC0    0x3cb0
+#define PCI_DEVICE_ID_INTEL_UNC_IMC1    0x3cb1
+#define PCI_DEVICE_ID_INTEL_UNC_IMC2    0x3cb4
+#define PCI_DEVICE_ID_INTEL_UNC_IMC3    0x3cb5
+#define PCI_DEVICE_ID_INTEL_UNC_QPI0    0x3c41
+#define PCI_DEVICE_ID_INTEL_UNC_QPI1    0x3c42
+#define PCI_DEVICE_ID_INTEL_UNC_R2PCIE  0x3c43
+#define PCI_DEVICE_ID_INTEL_UNC_R3QPI0  0x3c44
+#define PCI_DEVICE_ID_INTEL_UNC_R3QPI1  0x3c45
+#define PCI_DEVICE_ID_INTEL_JAKETOWN_UBOX       0x3ce0
 #define PCI_DEVICE_ID_INTEL_IOAT_SNB    0x402f
 #define PCI_DEVICE_ID_INTEL_5100_16     0x65f0
 #define PCI_DEVICE_ID_INTEL_5100_21     0x65f5
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 45db49f64bb4..76c5c8b724a7 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -677,6 +677,7 @@ struct hw_perf_event {
                         u64             last_tag;
                         unsigned long   config_base;
                         unsigned long   event_base;
+                        int             event_base_rdpmc;
                         int             idx;
                         int             last_cpu;
 
@@ -1106,6 +1107,8 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr,
                                 struct task_struct *task,
                                 perf_overflow_handler_t callback,
                                 void *context);
+extern void perf_pmu_migrate_context(struct pmu *pmu,
+                                int src_cpu, int dst_cpu);
 extern u64 perf_event_read_value(struct perf_event *event,
                                  u64 *enabled, u64 *running);
 
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 9cac722b169c..115ead2b5155 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -147,6 +147,7 @@ extern void synchronize_sched(void);
 
 extern void __rcu_read_lock(void);
 extern void __rcu_read_unlock(void);
+extern void rcu_read_unlock_special(struct task_struct *t);
 void synchronize_rcu(void);
 
 /*
@@ -255,6 +256,10 @@ static inline void destroy_rcu_head_on_stack(struct rcu_head *head)
 }
 #endif  /* #else !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
 
+#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_SMP)
+extern int rcu_is_cpu_idle(void);
+#endif /* #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_SMP) */
+
 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU)
 bool rcu_lockdep_current_cpu_online(void);
 #else /* #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU) */
@@ -266,15 +271,6 @@ static inline bool rcu_lockdep_current_cpu_online(void)
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 
-#ifdef CONFIG_PROVE_RCU
-extern int rcu_is_cpu_idle(void);
-#else /* !CONFIG_PROVE_RCU */
-static inline int rcu_is_cpu_idle(void)
-{
-        return 0;
-}
-#endif /* else !CONFIG_PROVE_RCU */
-
 static inline void rcu_lock_acquire(struct lockdep_map *map)
 {
         lock_acquire(map, 0, 0, 2, 1, NULL, _THIS_IP_);
@@ -431,8 +427,7 @@ extern int rcu_my_thread_group_empty(void);
 static inline void rcu_preempt_sleep_check(void)
 {
         rcu_lockdep_assert(!lock_is_held(&rcu_lock_map),
-                           "Illegal context switch in RCU read-side "
-                           "critical section");
+                           "Illegal context switch in RCU read-side critical section");
 }
 #else /* #ifdef CONFIG_PROVE_RCU */
 static inline void rcu_preempt_sleep_check(void)
@@ -513,10 +508,10 @@ static inline void rcu_preempt_sleep_check(void)
                 (_________p1); \
         })
 #define __rcu_assign_pointer(p, v, space) \
-        ({ \
+        do { \
                 smp_wmb(); \
                 (p) = (typeof(*v) __force space *)(v); \
-        })
+        } while (0)
 
 
 /**
@@ -851,7 +846,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
  *
  * Assigns the specified value to the specified RCU-protected
  * pointer, ensuring that any concurrent RCU readers will see
- * any prior initialization.  Returns the value assigned.
+ * any prior initialization.
  *
  * Inserts memory barriers on architectures that require them
  * (which is most of them), and also prevents the compiler from
@@ -903,25 +898,17 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
  * the reader-accessible portions of the linked structure.
  */
 #define RCU_INIT_POINTER(p, v) \
-                p = (typeof(*v) __force __rcu *)(v)
-
-static __always_inline bool __is_kfree_rcu_offset(unsigned long offset)
-{
-        return offset < 4096;
-}
-
-static __always_inline
-void __kfree_rcu(struct rcu_head *head, unsigned long offset)
-{
-        typedef void (*rcu_callback)(struct rcu_head *);
-
-        BUILD_BUG_ON(!__builtin_constant_p(offset));
-
-        /* See the kfree_rcu() header comment. */
-        BUILD_BUG_ON(!__is_kfree_rcu_offset(offset));
+        do { \
+                p = (typeof(*v) __force __rcu *)(v); \
+        } while (0)
 
-        kfree_call_rcu(head, (rcu_callback)offset);
-}
+/**
+ * RCU_POINTER_INITIALIZER() - statically initialize an RCU protected pointer
+ *
+ * GCC-style initialization for an RCU-protected pointer in a structure field.
+ */
+#define RCU_POINTER_INITIALIZER(p, v) \
+                .p = (typeof(*v) __force __rcu *)(v)
 
 /*
  * Does the specified offset indicate that the corresponding rcu_head
@@ -935,7 +922,7 @@ void __kfree_rcu(struct rcu_head *head, unsigned long offset)
 #define __kfree_rcu(head, offset) \
         do { \
                 BUILD_BUG_ON(!__is_kfree_rcu_offset(offset)); \
-                call_rcu(head, (void (*)(struct rcu_head *))(unsigned long)(offset)); \
+                kfree_call_rcu(head, (void (*)(struct rcu_head *))(unsigned long)(offset)); \
         } while (0)
 
 /**
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4a1f493e0fef..64d9df5c3a49 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1581,7 +1581,6 @@ struct task_struct {
 #endif
 #ifdef CONFIG_UPROBES
         struct uprobe_task *utask;
-        int uprobe_srcu_id;
 #endif
 };
 
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 717fb746c9a8..dd6f06be3c9f 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -90,10 +90,6 @@ void kick_all_cpus_sync(void);
 void __init call_function_init(void);
 void generic_smp_call_function_single_interrupt(void);
 void generic_smp_call_function_interrupt(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 call_function_init(void) { }
 #endif
@@ -181,7 +177,6 @@ static inline int up_smp_call_function(smp_call_func_t func, void *info)
         } while (0)
 
 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_many(mask, func, info, wait) \
                         (up_smp_call_function(func, info))
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index bd96ecd0e05c..802de56c41e8 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -153,7 +153,7 @@ static inline void tracepoint_synchronize_unregister(void)
         }                                                               \
         static inline void trace_##name##_rcuidle(proto)                \
         {                                                               \
-                if (static_branch(&__tracepoint_##name.key))            \
+                if (static_key_false(&__tracepoint_##name.key))         \
                         __DO_TRACE(&__tracepoint_##name,                \
                                 TP_PROTO(data_proto),                   \
                                 TP_ARGS(data_args),                     \
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index d6146b4811c2..95374d1696a1 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1425,7 +1425,7 @@ static inline void ip_vs_notrack(struct sk_buff *skb)
         struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 
         if (!ct || !nf_ct_is_untracked(ct)) {
-                nf_reset(skb);
+                nf_conntrack_put(skb->nfct);
                 skb->nfct = &nf_ct_untracked_get()->ct_general;
                 skb->nfctinfo = IP_CT_NEW;
                 nf_conntrack_get(skb->nfct);
diff --git a/include/net/netfilter/nf_conntrack_ecache.h b/include/net/netfilter/nf_conntrack_ecache.h
index a88fb6939387..e1ce1048fe5f 100644
--- a/include/net/netfilter/nf_conntrack_ecache.h
+++ b/include/net/netfilter/nf_conntrack_ecache.h
@@ -78,7 +78,7 @@ nf_conntrack_event_cache(enum ip_conntrack_events event, struct nf_conn *ct)
         struct net *net = nf_ct_net(ct);
         struct nf_conntrack_ecache *e;
 
-        if (net->ct.nf_conntrack_event_cb == NULL)
+        if (!rcu_access_pointer(net->ct.nf_conntrack_event_cb))
                 return;
 
         e = nf_ct_ecache_find(ct);
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index d274734b2aa4..5bde94d8585b 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -541,6 +541,50 @@ TRACE_EVENT(rcu_torture_read,
                   __entry->rcutorturename, __entry->rhp)
 );
 
+/*
+ * Tracepoint for _rcu_barrier() execution.  The string "s" describes
+ * the _rcu_barrier phase:
+ *      "Begin": rcu_barrier_callback() started.
+ *      "Check": rcu_barrier_callback() checking for piggybacking.
+ *      "EarlyExit": rcu_barrier_callback() piggybacked, thus early exit.
+ *      "Inc1": rcu_barrier_callback() piggyback check counter incremented.
+ *      "Offline": rcu_barrier_callback() found offline CPU
+ *      "OnlineQ": rcu_barrier_callback() found online CPU with callbacks.
+ *      "OnlineNQ": rcu_barrier_callback() found online CPU, no callbacks.
+ *      "IRQ": An rcu_barrier_callback() callback posted on remote CPU.
+ *      "CB": An rcu_barrier_callback() invoked a callback, not the last.
+ *      "LastCB": An rcu_barrier_callback() invoked the last callback.
+ *      "Inc2": rcu_barrier_callback() piggyback check counter incremented.
+ * The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument
+ * is the count of remaining callbacks, and "done" is the piggybacking count.
+ */
+TRACE_EVENT(rcu_barrier,
+
+        TP_PROTO(char *rcuname, char *s, int cpu, int cnt, unsigned long done),
+
+        TP_ARGS(rcuname, s, cpu, cnt, done),
+
+        TP_STRUCT__entry(
+                __field(char *, rcuname)
+                __field(char *, s)
+                __field(int, cpu)
+                __field(int, cnt)
+                __field(unsigned long, done)
+        ),
+
+        TP_fast_assign(
+                __entry->rcuname = rcuname;
+                __entry->s = s;
+                __entry->cpu = cpu;
+                __entry->cnt = cnt;
+                __entry->done = done;
+        ),
+
+        TP_printk("%s %s cpu %d remaining %d # %lu",
+                  __entry->rcuname, __entry->s, __entry->cpu, __entry->cnt,
+                  __entry->done)
+);
+
 #else /* #ifdef CONFIG_RCU_TRACE */
 
 #define trace_rcu_grace_period(rcuname, gpnum, gpevent) do { } while (0)
@@ -564,6 +608,7 @@ TRACE_EVENT(rcu_torture_read,
 #define trace_rcu_batch_end(rcuname, callbacks_invoked, cb, nr, iit, risk) \
         do { } while (0)
 #define trace_rcu_torture_read(rcutorturename, rhp) do { } while (0)
+#define trace_rcu_barrier(name, s, cpu, cnt, done) do { } while (0)
 
 #endif /* #else #ifdef CONFIG_RCU_TRACE */
 
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 769724944fc6..c6bc2faaf261 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -571,6 +571,7 @@ static inline void ftrace_test_probe_##call(void)			\
 
 #undef __print_flags
 #undef __print_symbolic
+#undef __print_hex
 #undef __get_dynamic_array
 #undef __get_str
 
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 67b847dfa2bb..1f91413edb87 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -14,6 +14,7 @@
 #include <linux/ctype.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <linux/kmsg_dump.h>
 #include <linux/reboot.h>
 #include <linux/sched.h>
 #include <linux/sysrq.h>
@@ -2040,8 +2041,15 @@ static int kdb_env(int argc, const char **argv)
  */
 static int kdb_dmesg(int argc, const char **argv)
 {
-        char *syslog_data[4], *start, *end, c = '\0', *p;
-        int diag, logging, logsize, lines = 0, adjust = 0, n;
+        int diag;
+        int logging;
+        int lines = 0;
+        int adjust = 0;
+        int n = 0;
+        int skip = 0;
+        struct kmsg_dumper dumper = { .active = 1 };
+        size_t len;
+        char buf[201];
 
         if (argc > 2)
                 return KDB_ARGCOUNT;
@@ -2064,22 +2072,10 @@ static int kdb_dmesg(int argc, const char **argv)
                 kdb_set(2, setargs);
         }
 
-        /* syslog_data[0,1] physical start, end+1.  syslog_data[2,3]
-         * logical start, end+1. */
-        kdb_syslog_data(syslog_data);
-        if (syslog_data[2] == syslog_data[3])
-                return 0;
-        logsize = syslog_data[1] - syslog_data[0];
-        start = syslog_data[2];
-        end = syslog_data[3];
-#define KDB_WRAP(p) (((p - syslog_data[0]) % logsize) + syslog_data[0])
-        for (n = 0, p = start; p < end; ++p) {
-                c = *KDB_WRAP(p);
-                if (c == '\n')
-                        ++n;
-        }
-        if (c != '\n')
-                ++n;
+        kmsg_dump_rewind_nolock(&dumper);
+        while (kmsg_dump_get_line_nolock(&dumper, 1, NULL, 0, NULL))
+                n++;
+
         if (lines < 0) {
                 if (adjust >= n)
                         kdb_printf("buffer only contains %d lines, nothing "
@@ -2087,21 +2083,11 @@ static int kdb_dmesg(int argc, const char **argv)
                 else if (adjust - lines >= n)
                         kdb_printf("buffer only contains %d lines, last %d "
                                    "lines printed\n", n, n - adjust);
-                if (adjust) {
-                        for (; start < end && adjust; ++start) {
-                                if (*KDB_WRAP(start) == '\n')
-                                        --adjust;
-                        }
-                        if (start < end)
-                                ++start;
-                }
-                for (p = start; p < end && lines; ++p) {
-                        if (*KDB_WRAP(p) == '\n')
-                                ++lines;
-                }
-                end = p;
+                skip = adjust;
+                lines = abs(lines);
         } else if (lines > 0) {
-                int skip = n - (adjust + lines);
+                skip = n - lines - adjust;
+                lines = abs(lines);
                 if (adjust >= n) {
                         kdb_printf("buffer only contains %d lines, "
                                    "nothing printed\n", n);
@@ -2112,35 +2098,24 @@ static int kdb_dmesg(int argc, const char **argv)
                         kdb_printf("buffer only contains %d lines, first "
                                    "%d lines printed\n", n, lines);
                 }
-                for (; start < end && skip; ++start) {
-                        if (*KDB_WRAP(start) == '\n')
-                                --skip;
-                }
-                for (p = start; p < end && lines; ++p) {
-                        if (*KDB_WRAP(p) == '\n')
-                                --lines;
-                }
-                end = p;
+        } else {
+                lines = n;
         }
-        /* Do a line at a time (max 200 chars) to reduce protocol overhead */
-        c = '\n';
-        while (start != end) {
-                char buf[201];
-                p = buf;
-                if (KDB_FLAG(CMD_INTERRUPT))
-                        return 0;
-                while (start < end && (c = *KDB_WRAP(start)) &&
-                       (p - buf) < sizeof(buf)-1) {
-                        ++start;
-                        *p++ = c;
-                        if (c == '\n')
-                                break;
+
+        if (skip >= n || skip < 0)
+                return 0;
+
+        kmsg_dump_rewind_nolock(&dumper);
+        while (kmsg_dump_get_line_nolock(&dumper, 1, buf, sizeof(buf), &len)) {
+                if (skip) {
+                        skip--;
+                        continue;
                 }
-                *p = '\0';
-                kdb_printf("%s", buf);
+                if (!lines--)
+                        break;
+
+                kdb_printf("%.*s\n", (int)len - 1, buf);
         }
-        if (c != '\n')
-                kdb_printf("\n");
 
         return 0;
 }
diff --git a/kernel/debug/kdb/kdb_private.h b/kernel/debug/kdb/kdb_private.h
index 47c4e56e513b..392ec6a25844 100644
--- a/kernel/debug/kdb/kdb_private.h
+++ b/kernel/debug/kdb/kdb_private.h
@@ -205,7 +205,6 @@ extern char kdb_grep_string[];
 extern int kdb_grep_leading;
 extern int kdb_grep_trailing;
 extern char *kdb_cmds[];
-extern void kdb_syslog_data(char *syslog_data[]);
 extern unsigned long kdb_task_state_string(const char *);
 extern char kdb_task_state_char (const struct task_struct *);
 extern unsigned long kdb_task_state(const struct task_struct *p,
diff --git a/kernel/events/core.c b/kernel/events/core.c
index d7d71d6ec972..f1cf0edeb39a 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1645,6 +1645,8 @@ perf_install_in_context(struct perf_event_context *ctx,
         lockdep_assert_held(&ctx->mutex);
 
         event->ctx = ctx;
+        if (event->cpu != -1)
+                event->cpu = cpu;
 
         if (!task) {
                 /*
@@ -6252,6 +6254,8 @@ SYSCALL_DEFINE5(perf_event_open,
                 }
         }
 
+        get_online_cpus();
+
         event = perf_event_alloc(&attr, cpu, task, group_leader, NULL,
                                  NULL, NULL);
         if (IS_ERR(event)) {
@@ -6304,7 +6308,7 @@ SYSCALL_DEFINE5(perf_event_open,
         /*
          * Get the target context (task or percpu):
          */
-        ctx = find_get_context(pmu, task, cpu);
+        ctx = find_get_context(pmu, task, event->cpu);
         if (IS_ERR(ctx)) {
                 err = PTR_ERR(ctx);
                 goto err_alloc;
@@ -6377,20 +6381,23 @@ SYSCALL_DEFINE5(perf_event_open,
         mutex_lock(&ctx->mutex);
 
         if (move_group) {
-                perf_install_in_context(ctx, group_leader, cpu);
+                synchronize_rcu();
+                perf_install_in_context(ctx, group_leader, event->cpu);
                 get_ctx(ctx);
                 list_for_each_entry(sibling, &group_leader->sibling_list,
                                     group_entry) {
-                        perf_install_in_context(ctx, sibling, cpu);
+                        perf_install_in_context(ctx, sibling, event->cpu);
                         get_ctx(ctx);
                 }
         }
 
-        perf_install_in_context(ctx, event, cpu);
+        perf_install_in_context(ctx, event, event->cpu);
         ++ctx->generation;
         perf_unpin_context(ctx);
         mutex_unlock(&ctx->mutex);
 
+        put_online_cpus();
+
         event->owner = current;
 
         mutex_lock(&current->perf_event_mutex);
@@ -6419,6 +6426,7 @@ err_context:
 err_alloc:
         free_event(event);
 err_task:
+        put_online_cpus();
         if (task)
                 put_task_struct(task);
 err_group_fd:
@@ -6479,6 +6487,39 @@ err:
 }
 EXPORT_SYMBOL_GPL(perf_event_create_kernel_counter);
 
+void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)
+{
+        struct perf_event_context *src_ctx;
+        struct perf_event_context *dst_ctx;
+        struct perf_event *event, *tmp;
+        LIST_HEAD(events);
+
+        src_ctx = &per_cpu_ptr(pmu->pmu_cpu_context, src_cpu)->ctx;
+        dst_ctx = &per_cpu_ptr(pmu->pmu_cpu_context, dst_cpu)->ctx;
+
+        mutex_lock(&src_ctx->mutex);
+        list_for_each_entry_safe(event, tmp, &src_ctx->event_list,
+                                 event_entry) {
+                perf_remove_from_context(event);
+                put_ctx(src_ctx);
+                list_add(&event->event_entry, &events);
+        }
+        mutex_unlock(&src_ctx->mutex);
+
+        synchronize_rcu();
+
+        mutex_lock(&dst_ctx->mutex);
+        list_for_each_entry_safe(event, tmp, &events, event_entry) {
+                list_del(&event->event_entry);
+                if (event->state >= PERF_EVENT_STATE_OFF)
+                        event->state = PERF_EVENT_STATE_INACTIVE;
+                perf_install_in_context(dst_ctx, event, dst_cpu);
+                get_ctx(dst_ctx);
+        }
+        mutex_unlock(&dst_ctx->mutex);
+}
+EXPORT_SYMBOL_GPL(perf_pmu_migrate_context);
+
 static void sync_child_event(struct perf_event *child_event,
                                struct task_struct *child)
 {
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 985be4d80fe8..f93532748bca 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -38,13 +38,29 @@
 #define UINSNS_PER_PAGE                 (PAGE_SIZE/UPROBE_XOL_SLOT_BYTES)
 #define MAX_UPROBE_XOL_SLOTS            UINSNS_PER_PAGE
 
-static struct srcu_struct uprobes_srcu;
 static struct rb_root uprobes_tree = RB_ROOT;
 
 static DEFINE_SPINLOCK(uprobes_treelock);       /* serialize rbtree access */
 
 #define UPROBES_HASH_SZ 13
 
+/*
+ * We need separate register/unregister and mmap/munmap lock hashes because
+ * of mmap_sem nesting.
+ *
+ * uprobe_register() needs to install probes on (potentially) all processes
+ * and thus needs to acquire multiple mmap_sems (consequtively, not
+ * concurrently), whereas uprobe_mmap() is called while holding mmap_sem
+ * for the particular process doing the mmap.
+ *
+ * uprobe_register()->register_for_each_vma() needs to drop/acquire mmap_sem
+ * because of lock order against i_mmap_mutex. This means there's a hole in
+ * the register vma iteration where a mmap() can happen.
+ *
+ * Thus uprobe_register() can race with uprobe_mmap() and we can try and
+ * install a probe where one is already installed.
+ */
+
 /* serialize (un)register */
 static struct mutex uprobes_mutex[UPROBES_HASH_SZ];
 
@@ -61,17 +77,6 @@ static struct mutex uprobes_mmap_mutex[UPROBES_HASH_SZ];
  */
 static atomic_t uprobe_events = ATOMIC_INIT(0);
 
-/*
- * Maintain a temporary per vma info that can be used to search if a vma
- * has already been handled. This structure is introduced since extending
- * vm_area_struct wasnt recommended.
- */
-struct vma_info {
-        struct list_head        probe_list;
-        struct mm_struct        *mm;
-        loff_t                  vaddr;
-};
-
 struct uprobe {
         struct rb_node          rb_node;        /* node in the rb tree */
         atomic_t                ref;
@@ -100,7 +105,8 @@ static bool valid_vma(struct vm_area_struct *vma, bool is_register)
         if (!is_register)
                 return true;
 
-        if ((vma->vm_flags & (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)) == (VM_READ|VM_EXEC))
+        if ((vma->vm_flags & (VM_HUGETLB|VM_READ|VM_WRITE|VM_EXEC|VM_SHARED))
+                                == (VM_READ|VM_EXEC))
                 return true;
 
         return false;
@@ -129,33 +135,17 @@ static loff_t vma_address(struct vm_area_struct *vma, loff_t offset)
 static int __replace_page(struct vm_area_struct *vma, struct page *page, struct page *kpage)
 {
         struct mm_struct *mm = vma->vm_mm;
-        pgd_t *pgd;
-        pud_t *pud;
-        pmd_t *pmd;
-        pte_t *ptep;
-        spinlock_t *ptl;
         unsigned long addr;
-        int err = -EFAULT;
+        spinlock_t *ptl;
+        pte_t *ptep;
 
         addr = page_address_in_vma(page, vma);
         if (addr == -EFAULT)
-                goto out;
-
-        pgd = pgd_offset(mm, addr);
-        if (!pgd_present(*pgd))
-                goto out;
-
-        pud = pud_offset(pgd, addr);
-        if (!pud_present(*pud))
-                goto out;
-
-        pmd = pmd_offset(pud, addr);
-        if (!pmd_present(*pmd))
-                goto out;
+                return -EFAULT;
 
-        ptep = pte_offset_map_lock(mm, pmd, addr, &ptl);
+        ptep = page_check_address(page, mm, addr, &ptl, 0);
         if (!ptep)
-                goto out;
+                return -EAGAIN;
 
         get_page(kpage);
         page_add_new_anon_rmap(kpage, vma, addr);
@@ -174,10 +164,8 @@ static int __replace_page(struct vm_area_struct *vma, struct page *page, struct
                 try_to_free_swap(page);
         put_page(page);
         pte_unmap_unlock(ptep, ptl);
-        err = 0;
 
-out:
-        return err;
+        return 0;
 }
 
 /**
@@ -222,9 +210,8 @@ static int write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm,
         void *vaddr_old, *vaddr_new;
         struct vm_area_struct *vma;
         struct uprobe *uprobe;
-        loff_t addr;
         int ret;
-
+retry:
         /* Read the page with vaddr into memory */
         ret = get_user_pages(NULL, mm, vaddr, 1, 0, 0, &old_page, &vma);
         if (ret <= 0)
@@ -246,10 +233,6 @@ static int write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm,
         if (mapping != vma->vm_file->f_mapping)
                 goto put_out;
 
-        addr = vma_address(vma, uprobe->offset);
-        if (vaddr != (unsigned long)addr)
-                goto put_out;
-
         ret = -ENOMEM;
         new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, vaddr);
         if (!new_page)
@@ -267,11 +250,7 @@ static int write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm,
         vaddr_new = kmap_atomic(new_page);
 
         memcpy(vaddr_new, vaddr_old, PAGE_SIZE);
-
-        /* poke the new insn in, ASSUMES we don't cross page boundary */
-        vaddr &= ~PAGE_MASK;
-        BUG_ON(vaddr + UPROBE_SWBP_INSN_SIZE > PAGE_SIZE);
-        memcpy(vaddr_new + vaddr, &opcode, UPROBE_SWBP_INSN_SIZE);
+        memcpy(vaddr_new + (vaddr & ~PAGE_MASK), &opcode, UPROBE_SWBP_INSN_SIZE);
 
         kunmap_atomic(vaddr_new);
         kunmap_atomic(vaddr_old);
@@ -291,6 +270,8 @@ unlock_out:
 put_out:
         put_page(old_page);
 
+        if (unlikely(ret == -EAGAIN))
+                goto retry;
         return ret;
 }
 
@@ -312,7 +293,7 @@ static int read_opcode(struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_
         void *vaddr_new;
         int ret;
 
-        ret = get_user_pages(NULL, mm, vaddr, 1, 0, 0, &page, NULL);
+        ret = get_user_pages(NULL, mm, vaddr, 1, 0, 1, &page, NULL);
         if (ret <= 0)
                 return ret;
 
@@ -333,10 +314,20 @@ static int is_swbp_at_addr(struct mm_struct *mm, unsigned long vaddr)
         uprobe_opcode_t opcode;
         int result;
 
+        if (current->mm == mm) {
+                pagefault_disable();
+                result = __copy_from_user_inatomic(&opcode, (void __user*)vaddr,
+                                                                sizeof(opcode));
+                pagefault_enable();
+
+                if (likely(result == 0))
+                        goto out;
+        }
+
         result = read_opcode(mm, vaddr, &opcode);
         if (result)
                 return result;
-
+out:
         if (is_swbp_insn(&opcode))
                 return 1;
 
@@ -355,7 +346,9 @@ static int is_swbp_at_addr(struct mm_struct *mm, unsigned long vaddr)
 int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long vaddr)
 {
         int result;
-
+        /*
+         * See the comment near uprobes_hash().
+         */
         result = is_swbp_at_addr(mm, vaddr);
         if (result == 1)
                 return -EEXIST;
@@ -520,7 +513,6 @@ static struct uprobe *alloc_uprobe(struct inode *inode, loff_t offset)
         uprobe->inode = igrab(inode);
         uprobe->offset = offset;
         init_rwsem(&uprobe->consumer_rwsem);
-        INIT_LIST_HEAD(&uprobe->pending_list);
 
         /* add to uprobes_tree, sorted on inode:offset */
         cur_uprobe = insert_uprobe(uprobe);
@@ -588,20 +580,22 @@ static bool consumer_del(struct uprobe *uprobe, struct uprobe_consumer *uc)
 }
 
 static int
-__copy_insn(struct address_space *mapping, struct vm_area_struct *vma, char *insn,
-                        unsigned long nbytes, unsigned long offset)
+__copy_insn(struct address_space *mapping, struct file *filp, char *insn,
+                        unsigned long nbytes, loff_t offset)
 {
-        struct file *filp = vma->vm_file;
         struct page *page;
         void *vaddr;
-        unsigned long off1;
-        unsigned long idx;
+        unsigned long off;
+        pgoff_t idx;
 
         if (!filp)
                 return -EINVAL;
 
-        idx = (unsigned long)(offset >> PAGE_CACHE_SHIFT);
-        off1 = offset &= ~PAGE_MASK;
+        if (!mapping->a_ops->readpage)
+                return -EIO;
+
+        idx = offset >> PAGE_CACHE_SHIFT;
+        off = offset & ~PAGE_MASK;
 
         /*
          * Ensure that the page that has the original instruction is
@@ -612,22 +606,20 @@ __copy_insn(struct address_space *mapping, struct vm_area_struct *vma, char *ins
                 return PTR_ERR(page);
 
         vaddr = kmap_atomic(page);
-        memcpy(insn, vaddr + off1, nbytes);
+        memcpy(insn, vaddr + off, nbytes);
         kunmap_atomic(vaddr);
         page_cache_release(page);
 
         return 0;
 }
 
-static int
-copy_insn(struct uprobe *uprobe, struct vm_area_struct *vma, unsigned long addr)
+static int copy_insn(struct uprobe *uprobe, struct file *filp)
 {
         struct address_space *mapping;
         unsigned long nbytes;
         int bytes;
 
-        addr &= ~PAGE_MASK;
-        nbytes = PAGE_SIZE - addr;
+        nbytes = PAGE_SIZE - (uprobe->offset & ~PAGE_MASK);
         mapping = uprobe->inode->i_mapping;
 
         /* Instruction at end of binary; copy only available bytes */
@@ -638,13 +630,13 @@ copy_insn(struct uprobe *uprobe, struct vm_area_struct *vma, unsigned long addr)
 
         /* Instruction at the page-boundary; copy bytes in second page */
         if (nbytes < bytes) {
-                if (__copy_insn(mapping, vma, uprobe->arch.insn + nbytes,
-                                bytes - nbytes, uprobe->offset + nbytes))
-                        return -ENOMEM;
-
+                int err = __copy_insn(mapping, filp, uprobe->arch.insn + nbytes,
+                                bytes - nbytes, uprobe->offset + nbytes);
+                if (err)
+                        return err;
                 bytes = nbytes;
         }
-        return __copy_insn(mapping, vma, uprobe->arch.insn, bytes, uprobe->offset);
+        return __copy_insn(mapping, filp, uprobe->arch.insn, bytes, uprobe->offset);
 }
 
 /*
@@ -672,9 +664,8 @@ copy_insn(struct uprobe *uprobe, struct vm_area_struct *vma, unsigned long addr)
  */
 static int
 install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm,
-                        struct vm_area_struct *vma, loff_t vaddr)
+                        struct vm_area_struct *vma, unsigned long vaddr)
 {
-        unsigned long addr;
         int ret;
 
         /*
@@ -687,20 +678,22 @@ install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm,
         if (!uprobe->consumers)
                 return -EEXIST;
 
-        addr = (unsigned long)vaddr;
-
         if (!(uprobe->flags & UPROBE_COPY_INSN)) {
-                ret = copy_insn(uprobe, vma, addr);
+                ret = copy_insn(uprobe, vma->vm_file);
                 if (ret)
                         return ret;
 
                 if (is_swbp_insn((uprobe_opcode_t *)uprobe->arch.insn))
-                        return -EEXIST;
+                        return -ENOTSUPP;
 
-                ret = arch_uprobe_analyze_insn(&uprobe->arch, mm);
+                ret = arch_uprobe_analyze_insn(&uprobe->arch, mm, vaddr);
                 if (ret)
                         return ret;
 
+                /* write_opcode() assumes we don't cross page boundary */
+                BUG_ON((uprobe->offset & ~PAGE_MASK) +
+                                UPROBE_SWBP_INSN_SIZE > PAGE_SIZE);
+
                 uprobe->flags |= UPROBE_COPY_INSN;
         }
 
@@ -713,7 +706,7 @@ install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm,
          * Hence increment before and decrement on failure.
          */
         atomic_inc(&mm->uprobes_state.count);
-        ret = set_swbp(&uprobe->arch, mm, addr);
+        ret = set_swbp(&uprobe->arch, mm, vaddr);
         if (ret)
                 atomic_dec(&mm->uprobes_state.count);
 
@@ -721,27 +714,21 @@ install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm,
 }
 
 static void
-remove_breakpoint(struct uprobe *uprobe, struct mm_struct *mm, loff_t vaddr)
+remove_breakpoint(struct uprobe *uprobe, struct mm_struct *mm, unsigned long vaddr)
 {
-        if (!set_orig_insn(&uprobe->arch, mm, (unsigned long)vaddr, true))
+        if (!set_orig_insn(&uprobe->arch, mm, vaddr, true))
                 atomic_dec(&mm->uprobes_state.count);
 }
 
 /*
- * There could be threads that have hit the breakpoint and are entering the
- * notifier code and trying to acquire the uprobes_treelock. The thread
- * calling delete_uprobe() that is removing the uprobe from the rb_tree can
- * race with these threads and might acquire the uprobes_treelock compared
- * to some of the breakpoint hit threads. In such a case, the breakpoint
- * hit threads will not find the uprobe. The current unregistering thread
- * waits till all other threads have hit a breakpoint, to acquire the
- * uprobes_treelock before the uprobe is removed from the rbtree.
+ * There could be threads that have already hit the breakpoint. They
+ * will recheck the current insn and restart if find_uprobe() fails.
+ * See find_active_uprobe().
  */
 static void delete_uprobe(struct uprobe *uprobe)
 {
         unsigned long flags;
 
-        synchronize_srcu(&uprobes_srcu);
         spin_lock_irqsave(&uprobes_treelock, flags);
         rb_erase(&uprobe->rb_node, &uprobes_tree);
         spin_unlock_irqrestore(&uprobes_treelock, flags);
@@ -750,139 +737,135 @@ static void delete_uprobe(struct uprobe *uprobe)
         atomic_dec(&uprobe_events);
 }
 
-static struct vma_info *
-__find_next_vma_info(struct address_space *mapping, struct list_head *head,
-                        struct vma_info *vi, loff_t offset, bool is_register)
+struct map_info {
+        struct map_info *next;
+        struct mm_struct *mm;
+        unsigned long vaddr;
+};
+
+static inline struct map_info *free_map_info(struct map_info *info)
+{
+        struct map_info *next = info->next;
+        kfree(info);
+        return next;
+}
+
+static struct map_info *
+build_map_info(struct address_space *mapping, loff_t offset, bool is_register)
 {
+        unsigned long pgoff = offset >> PAGE_SHIFT;
         struct prio_tree_iter iter;
         struct vm_area_struct *vma;
-        struct vma_info *tmpvi;
-        unsigned long pgoff;
-        int existing_vma;
-        loff_t vaddr;
-
-        pgoff = offset >> PAGE_SHIFT;
+        struct map_info *curr = NULL;
+        struct map_info *prev = NULL;
+        struct map_info *info;
+        int more = 0;
 
+ again:
+        mutex_lock(&mapping->i_mmap_mutex);
         vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
                 if (!valid_vma(vma, is_register))
                         continue;
 
-                existing_vma = 0;
-                vaddr = vma_address(vma, offset);
-
-                list_for_each_entry(tmpvi, head, probe_list) {
-                        if (tmpvi->mm == vma->vm_mm && tmpvi->vaddr == vaddr) {
-                                existing_vma = 1;
-                                break;
-                        }
+                if (!prev && !more) {
+                        /*
+                         * Needs GFP_NOWAIT to avoid i_mmap_mutex recursion through
+                         * reclaim. This is optimistic, no harm done if it fails.
+                         */
+                        prev = kmalloc(sizeof(struct map_info),
+                                        GFP_NOWAIT | __GFP_NOMEMALLOC | __GFP_NOWARN);
+                        if (prev)
+                                prev->next = NULL;
                 }
-
-                /*
-                 * Another vma needs a probe to be installed. However skip
-                 * installing the probe if the vma is about to be unlinked.
-                 */
-                if (!existing_vma && atomic_inc_not_zero(&vma->vm_mm->mm_users)) {
-                        vi->mm = vma->vm_mm;
-                        vi->vaddr = vaddr;
-                        list_add(&vi->probe_list, head);
-
-                        return vi;
+                if (!prev) {
+                        more++;
+                        continue;
                 }
-        }
 
-        return NULL;
-}
-
-/*
- * Iterate in the rmap prio tree  and find a vma where a probe has not
- * yet been inserted.
- */
-static struct vma_info *
-find_next_vma_info(struct address_space *mapping, struct list_head *head,
-                loff_t offset, bool is_register)
-{
-        struct vma_info *vi, *retvi;
+                if (!atomic_inc_not_zero(&vma->vm_mm->mm_users))
+                        continue;
 
-        vi = kzalloc(sizeof(struct vma_info), GFP_KERNEL);
-        if (!vi)
-                return ERR_PTR(-ENOMEM);
+                info = prev;
+                prev = prev->next;
+                info->next = curr;
+                curr = info;
 
-        mutex_lock(&mapping->i_mmap_mutex);
-        retvi = __find_next_vma_info(mapping, head, vi, offset, is_register);
+                info->mm = vma->vm_mm;
+                info->vaddr = vma_address(vma, offset);
+        }
         mutex_unlock(&mapping->i_mmap_mutex);
 
-        if (!retvi)
-                kfree(vi);
+        if (!more)
+                goto out;
+
+        prev = curr;
+        while (curr) {
+                mmput(curr->mm);
+                curr = curr->next;
+        }
 
-        return retvi;
+        do {
+                info = kmalloc(sizeof(struct map_info), GFP_KERNEL);
+                if (!info) {
+                        curr = ERR_PTR(-ENOMEM);
+                        goto out;
+                }
+                info->next = prev;
+                prev = info;
+        } while (--more);
+
+        goto again;
+ out:
+        while (prev)
+                prev = free_map_info(prev);
+        return curr;
 }
 
 static int register_for_each_vma(struct uprobe *uprobe, bool is_register)
 {
-        struct list_head try_list;
-        struct vm_area_struct *vma;
-        struct address_space *mapping;
-        struct vma_info *vi, *tmpvi;
-        struct mm_struct *mm;
-        loff_t vaddr;
-        int ret;
+        struct map_info *info;
+        int err = 0;
 
-        mapping = uprobe->inode->i_mapping;
-        INIT_LIST_HEAD(&try_list);
+        info = build_map_info(uprobe->inode->i_mapping,
+                                        uprobe->offset, is_register);
+        if (IS_ERR(info))
+                return PTR_ERR(info);
 
-        ret = 0;
+        while (info) {
+                struct mm_struct *mm = info->mm;
+                struct vm_area_struct *vma;
 
-        for (;;) {
-                vi = find_next_vma_info(mapping, &try_list, uprobe->offset, is_register);
-                if (!vi)
-                        break;
+                if (err)
+                        goto free;
 
-                if (IS_ERR(vi)) {
-                        ret = PTR_ERR(vi);
-                        break;
-                }
+                down_write(&mm->mmap_sem);
+                vma = find_vma(mm, (unsigned long)info->vaddr);
+                if (!vma || !valid_vma(vma, is_register))
+                        goto unlock;
 
-                mm = vi->mm;
-                down_read(&mm->mmap_sem);
-                vma = find_vma(mm, (unsigned long)vi->vaddr);
-                if (!vma || !valid_vma(vma, is_register)) {
-                        list_del(&vi->probe_list);
-                        kfree(vi);
-                        up_read(&mm->mmap_sem);
-                        mmput(mm);
-                        continue;
-                }
-                vaddr = vma_address(vma, uprobe->offset);
                 if (vma->vm_file->f_mapping->host != uprobe->inode ||
-                                                vaddr != vi->vaddr) {
-                        list_del(&vi->probe_list);
-                        kfree(vi);
-                        up_read(&mm->mmap_sem);
-                        mmput(mm);
-                        continue;
-                }
-
-                if (is_register)
-                        ret = install_breakpoint(uprobe, mm, vma, vi->vaddr);
-                else
-                        remove_breakpoint(uprobe, mm, vi->vaddr);
+                    vma_address(vma, uprobe->offset) != info->vaddr)
+                        goto unlock;
 
-                up_read(&mm->mmap_sem);
-                mmput(mm);
                 if (is_register) {
-                        if (ret && ret == -EEXIST)
-                                ret = 0;
-                        if (ret)
-                                break;
+                        err = install_breakpoint(uprobe, mm, vma, info->vaddr);
+                        /*
+                         * We can race against uprobe_mmap(), see the
+                         * comment near uprobe_hash().
+                         */
+                        if (err == -EEXIST)
+                                err = 0;
+                } else {
+                        remove_breakpoint(uprobe, mm, info->vaddr);
                 }
+ unlock:
+                up_write(&mm->mmap_sem);
+ free:
+                mmput(mm);
+                info = free_map_info(info);
         }
 
-        list_for_each_entry_safe(vi, tmpvi, &try_list, probe_list) {
-                list_del(&vi->probe_list);
-                kfree(vi);
-        }
-
-        return ret;
+        return err;
 }
 
 static int __uprobe_register(struct uprobe *uprobe)
@@ -1048,7 +1031,7 @@ static void build_probe_list(struct inode *inode, struct list_head *head)
 int uprobe_mmap(struct vm_area_struct *vma)
 {
         struct list_head tmp_list;
-        struct uprobe *uprobe, *u;
+        struct uprobe *uprobe;
         struct inode *inode;
         int ret, count;
 
@@ -1066,12 +1049,9 @@ int uprobe_mmap(struct vm_area_struct *vma)
         ret = 0;
         count = 0;
 
-        list_for_each_entry_safe(uprobe, u, &tmp_list, pending_list) {
-                loff_t vaddr;
-
-                list_del(&uprobe->pending_list);
+        list_for_each_entry(uprobe, &tmp_list, pending_list) {
                 if (!ret) {
-                        vaddr = vma_address(vma, uprobe->offset);
+                        loff_t vaddr = vma_address(vma, uprobe->offset);
 
                         if (vaddr < vma->vm_start || vaddr >= vma->vm_end) {
                                 put_uprobe(uprobe);
@@ -1079,8 +1059,10 @@ int uprobe_mmap(struct vm_area_struct *vma)
                         }
 
                         ret = install_breakpoint(uprobe, vma->vm_mm, vma, vaddr);
-
-                        /* Ignore double add: */
+                        /*
+                         * We can race against uprobe_register(), see the
+                         * comment near uprobe_hash().
+                         */
                         if (ret == -EEXIST) {
                                 ret = 0;
 
@@ -1115,7 +1097,7 @@ int uprobe_mmap(struct vm_area_struct *vma)
 void uprobe_munmap(struct vm_area_struct *vma, unsigned long start, unsigned long end)
 {
         struct list_head tmp_list;
-        struct uprobe *uprobe, *u;
+        struct uprobe *uprobe;
         struct inode *inode;
 
         if (!atomic_read(&uprobe_events) || !valid_vma(vma, false))
@@ -1132,11 +1114,8 @@ void uprobe_munmap(struct vm_area_struct *vma, unsigned long start, unsigned lon
         mutex_lock(uprobes_mmap_hash(inode));
         build_probe_list(inode, &tmp_list);
 
-        list_for_each_entry_safe(uprobe, u, &tmp_list, pending_list) {
-                loff_t vaddr;
-
-                list_del(&uprobe->pending_list);
-                vaddr = vma_address(vma, uprobe->offset);
+        list_for_each_entry(uprobe, &tmp_list, pending_list) {
+                loff_t vaddr = vma_address(vma, uprobe->offset);
 
                 if (vaddr >= start && vaddr < end) {
                         /*
@@ -1378,9 +1357,6 @@ void uprobe_free_utask(struct task_struct *t)
 {
         struct uprobe_task *utask = t->utask;
 
-        if (t->uprobe_srcu_id != -1)
-                srcu_read_unlock_raw(&uprobes_srcu, t->uprobe_srcu_id);
-
         if (!utask)
                 return;
 
@@ -1398,7 +1374,6 @@ void uprobe_free_utask(struct task_struct *t)
 void uprobe_copy_process(struct task_struct *t)
 {
         t->utask = NULL;
-        t->uprobe_srcu_id = -1;
 }
 
 /*
@@ -1417,7 +1392,6 @@ static struct uprobe_task *add_utask(void)
         if (unlikely(!utask))
                 return NULL;
 
-        utask->active_uprobe = NULL;
         current->utask = utask;
         return utask;
 }
@@ -1479,41 +1453,64 @@ static bool can_skip_sstep(struct uprobe *uprobe, struct pt_regs *regs)
         return false;
 }
 
+static struct uprobe *find_active_uprobe(unsigned long bp_vaddr, int *is_swbp)
+{
+        struct mm_struct *mm = current->mm;
+        struct uprobe *uprobe = NULL;
+        struct vm_area_struct *vma;
+
+        down_read(&mm->mmap_sem);
+        vma = find_vma(mm, bp_vaddr);
+        if (vma && vma->vm_start <= bp_vaddr) {
+                if (valid_vma(vma, false)) {
+                        struct inode *inode;
+                        loff_t offset;
+
+                        inode = vma->vm_file->f_mapping->host;
+                        offset = bp_vaddr - vma->vm_start;
+                        offset += (vma->vm_pgoff << PAGE_SHIFT);
+                        uprobe = find_uprobe(inode, offset);
+                }
+
+                if (!uprobe)
+                        *is_swbp = is_swbp_at_addr(mm, bp_vaddr);
+        } else {
+                *is_swbp = -EFAULT;
+        }
+        up_read(&mm->mmap_sem);
+
+        return uprobe;
+}
+
 /*
  * Run handler and ask thread to singlestep.
  * Ensure all non-fatal signals cannot interrupt thread while it singlesteps.
  */
 static void handle_swbp(struct pt_regs *regs)
 {
-        struct vm_area_struct *vma;
         struct uprobe_task *utask;
         struct uprobe *uprobe;
-        struct mm_struct *mm;
         unsigned long bp_vaddr;
+        int uninitialized_var(is_swbp);
 
-        uprobe = NULL;
         bp_vaddr = uprobe_get_swbp_addr(regs);
-        mm = current->mm;
-        down_read(&mm->mmap_sem);
-        vma = find_vma(mm, bp_vaddr);
-
-        if (vma && vma->vm_start <= bp_vaddr && valid_vma(vma, false)) {
-                struct inode *inode;
-                loff_t offset;
-
-                inode = vma->vm_file->f_mapping->host;
-                offset = bp_vaddr - vma->vm_start;
-                offset += (vma->vm_pgoff << PAGE_SHIFT);
-                uprobe = find_uprobe(inode, offset);
-        }
-
-        srcu_read_unlock_raw(&uprobes_srcu, current->uprobe_srcu_id);
-        current->uprobe_srcu_id = -1;
-        up_read(&mm->mmap_sem);
+        uprobe = find_active_uprobe(bp_vaddr, &is_swbp);
 
         if (!uprobe) {
-                /* No matching uprobe; signal SIGTRAP. */
-                send_sig(SIGTRAP, current, 0);
+                if (is_swbp > 0) {
+                        /* No matching uprobe; signal SIGTRAP. */
+                        send_sig(SIGTRAP, current, 0);
+                } else {
+                        /*
+                         * Either we raced with uprobe_unregister() or we can't
+                         * access this memory. The latter is only possible if
+                         * another thread plays with our ->mm. In both cases
+                         * we can simply restart. If this vma was unmapped we
+                         * can pretend this insn was not executed yet and get
+                         * the (correct) SIGSEGV after restart.
+                         */
+                        instruction_pointer_set(regs, bp_vaddr);
+                }
                 return;
         }
 
@@ -1620,7 +1617,6 @@ int uprobe_pre_sstep_notifier(struct pt_regs *regs)
                 utask->state = UTASK_BP_HIT;
 
         set_thread_flag(TIF_UPROBE);
-        current->uprobe_srcu_id = srcu_read_lock_raw(&uprobes_srcu);
 
         return 1;
 }
@@ -1655,7 +1651,6 @@ static int __init init_uprobes(void)
                 mutex_init(&uprobes_mutex[i]);
                 mutex_init(&uprobes_mmap_mutex[i]);
         }
-        init_srcu_struct(&uprobes_srcu);
 
         return register_die_notifier(&uprobe_exception_nb);
 }
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 8b53db38a279..238025f5472e 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -27,7 +27,6 @@
 #include <linux/syscore_ops.h>
 #include <linux/ctype.h>
 #include <linux/genhd.h>
-#include <scsi/scsi_scan.h>
 
 #include "power.h"
 
@@ -748,13 +747,6 @@ static int software_resume(void)
                         async_synchronize_full();
                 }
 
-                /*
-                 * We can't depend on SCSI devices being available after loading
-                 * one of their modules until scsi_complete_async_scans() is
-                 * called and the resume device usually is a SCSI one.
-                 */
-                scsi_complete_async_scans();
-
                 swsusp_resume_device = name_to_dev_t(resume_file);
                 if (!swsusp_resume_device) {
                         error = -ENODEV;
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 91b0fd021a95..4ed81e74f86f 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -24,7 +24,6 @@
 #include <linux/console.h>
 #include <linux/cpu.h>
 #include <linux/freezer.h>
-#include <scsi/scsi_scan.h>
 
 #include <asm/uaccess.h>
 
@@ -84,7 +83,6 @@ static int snapshot_open(struct inode *inode, struct file *filp)
                  * appear.
                  */
                 wait_for_device_probe();
-                scsi_complete_async_scans();
 
                 data->swap = -1;
                 data->mode = O_WRONLY;
diff --git a/kernel/printk.c b/kernel/printk.c
index 177fa49357a5..ac4bc9e79465 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -1192,21 +1192,6 @@ SYSCALL_DEFINE3(syslog, int, type, char __user *, buf, int, len)
         return do_syslog(type, buf, len, SYSLOG_FROM_CALL);
 }
 
-#ifdef  CONFIG_KGDB_KDB
-/* kdb dmesg command needs access to the syslog buffer.  do_syslog()
- * uses locks so it cannot be used during debugging.  Just tell kdb
- * where the start and end of the physical and logical logs are.  This
- * is equivalent to do_syslog(3).
- */
-void kdb_syslog_data(char *syslog_data[4])
-{
-        syslog_data[0] = log_buf;
-        syslog_data[1] = log_buf + log_buf_len;
-        syslog_data[2] = log_buf + log_first_idx;
-        syslog_data[3] = log_buf + log_next_idx;
-}
-#endif  /* CONFIG_KGDB_KDB */
-
 static bool __read_mostly ignore_loglevel;
 
 static int __init ignore_loglevel_setup(char *str)
@@ -2525,7 +2510,7 @@ void kmsg_dump(enum kmsg_dump_reason reason)
 }
 
 /**
- * kmsg_dump_get_line - retrieve one kmsg log line
+ * kmsg_dump_get_line_nolock - retrieve one kmsg log line (unlocked version)
  * @dumper: registered kmsg dumper
  * @syslog: include the "<4>" prefixes
  * @line: buffer to copy the line to
@@ -2540,11 +2525,12 @@ void kmsg_dump(enum kmsg_dump_reason reason)
  *
  * A return value of FALSE indicates that there are no more records to
  * read.
+ *
+ * The function is similar to kmsg_dump_get_line(), but grabs no locks.
  */
-bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
-                        char *line, size_t size, size_t *len)
+bool kmsg_dump_get_line_nolock(struct kmsg_dumper *dumper, bool syslog,
+                               char *line, size_t size, size_t *len)
 {
-        unsigned long flags;
         struct log *msg;
         size_t l = 0;
         bool ret = false;
@@ -2552,7 +2538,6 @@ bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
         if (!dumper->active)
                 goto out;
 
-        raw_spin_lock_irqsave(&logbuf_lock, flags);
         if (dumper->cur_seq < log_first_seq) {
                 /* messages are gone, move to first available one */
                 dumper->cur_seq = log_first_seq;
@@ -2560,10 +2545,8 @@ bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
         }
 
         /* last entry */
-        if (dumper->cur_seq >= log_next_seq) {
-                raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+        if (dumper->cur_seq >= log_next_seq)
                 goto out;
-        }
 
         msg = log_from_idx(dumper->cur_idx);
         l = msg_print_text(msg, 0, syslog, line, size);
@@ -2571,12 +2554,41 @@ bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
         dumper->cur_idx = log_next(dumper->cur_idx);
         dumper->cur_seq++;
         ret = true;
-        raw_spin_unlock_irqrestore(&logbuf_lock, flags);
 out:
         if (len)
                 *len = l;
         return ret;
 }
+
+/**
+ * kmsg_dump_get_line - retrieve one kmsg log line
+ * @dumper: registered kmsg dumper
+ * @syslog: include the "<4>" prefixes
+ * @line: buffer to copy the line to
+ * @size: maximum size of the buffer
+ * @len: length of line placed into buffer
+ *
+ * Start at the beginning of the kmsg buffer, with the oldest kmsg
+ * record, and copy one record into the provided buffer.
+ *
+ * Consecutive calls will return the next available record moving
+ * towards the end of the buffer with the youngest messages.
+ *
+ * A return value of FALSE indicates that there are no more records to
+ * read.
+ */
+bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
+                        char *line, size_t size, size_t *len)
+{
+        unsigned long flags;
+        bool ret;
+
+        raw_spin_lock_irqsave(&logbuf_lock, flags);
+        ret = kmsg_dump_get_line_nolock(dumper, syslog, line, size, len);
+        raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+
+        return ret;
+}
 EXPORT_SYMBOL_GPL(kmsg_dump_get_line);
 
 /**
@@ -2679,6 +2691,24 @@ out:
 EXPORT_SYMBOL_GPL(kmsg_dump_get_buffer);
 
 /**
+ * kmsg_dump_rewind_nolock - reset the interator (unlocked version)
+ * @dumper: registered kmsg dumper
+ *
+ * Reset the dumper's iterator so that kmsg_dump_get_line() and
+ * kmsg_dump_get_buffer() can be called again and used multiple
+ * times within the same dumper.dump() callback.
+ *
+ * The function is similar to kmsg_dump_rewind(), but grabs no locks.
+ */
+void kmsg_dump_rewind_nolock(struct kmsg_dumper *dumper)
+{
+        dumper->cur_seq = clear_seq;
+        dumper->cur_idx = clear_idx;
+        dumper->next_seq = log_next_seq;
+        dumper->next_idx = log_next_idx;
+}
+
+/**
  * kmsg_dump_rewind - reset the interator
  * @dumper: registered kmsg dumper
  *
@@ -2691,10 +2721,7 @@ void kmsg_dump_rewind(struct kmsg_dumper *dumper)
         unsigned long flags;
 
         raw_spin_lock_irqsave(&logbuf_lock, flags);
-        dumper->cur_seq = clear_seq;
-        dumper->cur_idx = clear_idx;
-        dumper->next_seq = log_next_seq;
-        dumper->next_idx = log_next_idx;
+        kmsg_dump_rewind_nolock(dumper);
         raw_spin_unlock_irqrestore(&logbuf_lock, flags);
 }
 EXPORT_SYMBOL_GPL(kmsg_dump_rewind);
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 95cba41ce1e9..4e6a61b15e86 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -54,6 +54,50 @@
 #ifdef CONFIG_PREEMPT_RCU
 
 /*
+ * Preemptible RCU implementation for rcu_read_lock().
+ * Just increment ->rcu_read_lock_nesting, shared state will be updated
+ * if we block.
+ */
+void __rcu_read_lock(void)
+{
+        current->rcu_read_lock_nesting++;
+        barrier();  /* critical section after entry code. */
+}
+EXPORT_SYMBOL_GPL(__rcu_read_lock);
+
+/*
+ * Preemptible RCU implementation for rcu_read_unlock().
+ * Decrement ->rcu_read_lock_nesting.  If the result is zero (outermost
+ * rcu_read_unlock()) and ->rcu_read_unlock_special is non-zero, then
+ * invoke rcu_read_unlock_special() to clean up after a context switch
+ * in an RCU read-side critical section and other special cases.
+ */
+void __rcu_read_unlock(void)
+{
+        struct task_struct *t = current;
+
+        if (t->rcu_read_lock_nesting != 1) {
+                --t->rcu_read_lock_nesting;
+        } else {
+                barrier();  /* critical section before exit code. */
+                t->rcu_read_lock_nesting = INT_MIN;
+                barrier();  /* assign before ->rcu_read_unlock_special load */
+                if (unlikely(ACCESS_ONCE(t->rcu_read_unlock_special)))
+                        rcu_read_unlock_special(t);
+                barrier();  /* ->rcu_read_unlock_special load before assign */
+                t->rcu_read_lock_nesting = 0;
+        }
+#ifdef CONFIG_PROVE_LOCKING
+        {
+                int rrln = ACCESS_ONCE(t->rcu_read_lock_nesting);
+
+                WARN_ON_ONCE(rrln < 0 && rrln > INT_MIN / 2);
+        }
+#endif /* #ifdef CONFIG_PROVE_LOCKING */
+}
+EXPORT_SYMBOL_GPL(__rcu_read_unlock);
+
+/*
  * Check for a task exiting while in a preemptible-RCU read-side
  * critical section, clean up if so.  No need to issue warnings,
  * as debug_check_no_locks_held() already does this if lockdep
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index 37a5444204d2..547b1fe5b052 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -172,7 +172,7 @@ void rcu_irq_enter(void)
         local_irq_restore(flags);
 }
 
-#ifdef CONFIG_PROVE_RCU
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
 
 /*
  * Test whether RCU thinks that the current CPU is idle.
@@ -183,7 +183,7 @@ int rcu_is_cpu_idle(void)
 }
 EXPORT_SYMBOL(rcu_is_cpu_idle);
 
-#endif /* #ifdef CONFIG_PROVE_RCU */
+#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
 
 /*
  * Test whether the current CPU was interrupted from idle.  Nested
diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
index fc31a2d65100..918fd1e8509c 100644
--- a/kernel/rcutiny_plugin.h
+++ b/kernel/rcutiny_plugin.h
@@ -132,7 +132,6 @@ static struct rcu_preempt_ctrlblk rcu_preempt_ctrlblk = {
         RCU_TRACE(.rcb.name = "rcu_preempt")
 };
 
-static void rcu_read_unlock_special(struct task_struct *t);
 static int rcu_preempted_readers_exp(void);
 static void rcu_report_exp_done(void);
 
@@ -351,8 +350,9 @@ static int rcu_initiate_boost(void)
                         rcu_preempt_ctrlblk.boost_tasks =
                                 rcu_preempt_ctrlblk.gp_tasks;
                 invoke_rcu_callbacks();
-        } else
+        } else {
                 RCU_TRACE(rcu_initiate_boost_trace());
+        }
         return 1;
 }
 
@@ -527,23 +527,11 @@ void rcu_preempt_note_context_switch(void)
 }
 
 /*
- * Tiny-preemptible RCU implementation for rcu_read_lock().
- * Just increment ->rcu_read_lock_nesting, shared state will be updated
- * if we block.
- */
-void __rcu_read_lock(void)
-{
-        current->rcu_read_lock_nesting++;
-        barrier();  /* needed if we ever invoke rcu_read_lock in rcutiny.c */
-}
-EXPORT_SYMBOL_GPL(__rcu_read_lock);
-
-/*
  * Handle special cases during rcu_read_unlock(), such as needing to
  * notify RCU core processing or task having blocked during the RCU
  * read-side critical section.
  */
-static noinline void rcu_read_unlock_special(struct task_struct *t)
+void rcu_read_unlock_special(struct task_struct *t)
 {
         int empty;
         int empty_exp;
@@ -627,38 +615,6 @@ static noinline void rcu_read_unlock_special(struct task_struct *t)
 }
 
 /*
- * Tiny-preemptible RCU implementation for rcu_read_unlock().
- * Decrement ->rcu_read_lock_nesting.  If the result is zero (outermost
- * rcu_read_unlock()) and ->rcu_read_unlock_special is non-zero, then
- * invoke rcu_read_unlock_special() to clean up after a context switch
- * in an RCU read-side critical section and other special cases.
- */
-void __rcu_read_unlock(void)
-{
-        struct task_struct *t = current;
-
-        barrier();  /* needed if we ever invoke rcu_read_unlock in rcutiny.c */
-        if (t->rcu_read_lock_nesting != 1)
-                --t->rcu_read_lock_nesting;
-        else {
-                t->rcu_read_lock_nesting = INT_MIN;
-                barrier();  /* assign before ->rcu_read_unlock_special load */
-                if (unlikely(ACCESS_ONCE(t->rcu_read_unlock_special)))
-                        rcu_read_unlock_special(t);
-                barrier();  /* ->rcu_read_unlock_special load before assign */
-                t->rcu_read_lock_nesting = 0;
-        }
-#ifdef CONFIG_PROVE_LOCKING
-        {
-                int rrln = ACCESS_ONCE(t->rcu_read_lock_nesting);
-
-                WARN_ON_ONCE(rrln < 0 && rrln > INT_MIN / 2);
-        }
-#endif /* #ifdef CONFIG_PROVE_LOCKING */
-}
-EXPORT_SYMBOL_GPL(__rcu_read_unlock);
-
-/*
  * Check for a quiescent state from the current CPU.  When a task blocks,
  * the task is recorded in the rcu_preempt_ctrlblk structure, which is
  * checked elsewhere.  This is called from the scheduling-clock interrupt.
@@ -823,9 +779,9 @@ void synchronize_rcu_expedited(void)
                 rpcp->exp_tasks = NULL;
 
         /* Wait for tail of ->blkd_tasks list to drain. */
-        if (!rcu_preempted_readers_exp())
+        if (!rcu_preempted_readers_exp()) {
                 local_irq_restore(flags);
-        else {
+        } else {
                 rcu_initiate_boost();
                 local_irq_restore(flags);
                 wait_event(sync_rcu_preempt_exp_wq,
@@ -846,8 +802,6 @@ EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
  */
 int rcu_preempt_needs_cpu(void)
 {
-        if (!rcu_preempt_running_reader())
-                rcu_preempt_cpu_qs();
         return rcu_preempt_ctrlblk.rcb.rcucblist != NULL;
 }
 
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index e66b34ab7555..25b15033c61f 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -49,8 +49,7 @@
 #include <asm/byteorder.h>
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Paul E. McKenney <paulmck@us.ibm.com> and "
-              "Josh Triplett <josh@freedesktop.org>");
+MODULE_AUTHOR("Paul E. McKenney <paulmck@us.ibm.com> and Josh Triplett <josh@freedesktop.org>");
 
 static int nreaders = -1;       /* # reader threads, defaults to 2*ncpus */
 static int nfakewriters = 4;    /* # fake writer threads */
@@ -206,6 +205,7 @@ static unsigned long boost_starttime;	/* jiffies of next boost test start. */
 DEFINE_MUTEX(boost_mutex);              /* protect setting boost_starttime */
                                         /*  and boost task create/destroy. */
 static atomic_t barrier_cbs_count;      /* Barrier callbacks registered. */
+static bool barrier_phase;              /* Test phase. */
 static atomic_t barrier_cbs_invoked;    /* Barrier callbacks invoked. */
 static wait_queue_head_t *barrier_cbs_wq; /* Coordinate barrier testing. */
 static DECLARE_WAIT_QUEUE_HEAD(barrier_wq);
@@ -407,8 +407,9 @@ rcu_torture_cb(struct rcu_head *p)
         if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
                 rp->rtort_mbtest = 0;
                 rcu_torture_free(rp);
-        } else
+        } else {
                 cur_ops->deferred_free(rp);
+        }
 }
 
 static int rcu_no_completed(void)
@@ -635,6 +636,17 @@ static void srcu_torture_synchronize(void)
         synchronize_srcu(&srcu_ctl);
 }
 
+static void srcu_torture_call(struct rcu_head *head,
+                              void (*func)(struct rcu_head *head))
+{
+        call_srcu(&srcu_ctl, head, func);
+}
+
+static void srcu_torture_barrier(void)
+{
+        srcu_barrier(&srcu_ctl);
+}
+
 static int srcu_torture_stats(char *page)
 {
         int cnt = 0;
@@ -661,8 +673,8 @@ static struct rcu_torture_ops srcu_ops = {
         .completed      = srcu_torture_completed,
         .deferred_free  = srcu_torture_deferred_free,
         .sync           = srcu_torture_synchronize,
-        .call           = NULL,
-        .cb_barrier     = NULL,
+        .call           = srcu_torture_call,
+        .cb_barrier     = srcu_torture_barrier,
         .stats          = srcu_torture_stats,
         .name           = "srcu"
 };
@@ -1013,7 +1025,11 @@ rcu_torture_fakewriter(void *arg)
         do {
                 schedule_timeout_uninterruptible(1 + rcu_random(&rand)%10);
                 udelay(rcu_random(&rand) & 0x3ff);
-                cur_ops->sync();
+                if (cur_ops->cb_barrier != NULL &&
+                    rcu_random(&rand) % (nfakewriters * 8) == 0)
+                        cur_ops->cb_barrier();
+                else
+                        cur_ops->sync();
                 rcu_stutter_wait("rcu_torture_fakewriter");
         } while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
 
@@ -1183,27 +1199,27 @@ rcu_torture_printk(char *page)
         }
         cnt += sprintf(&page[cnt], "%s%s ", torture_type, TORTURE_FLAG);
         cnt += sprintf(&page[cnt],
-                       "rtc: %p ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d "
-                       "rtmbe: %d rtbke: %ld rtbre: %ld "
-                       "rtbf: %ld rtb: %ld nt: %ld "
-                       "onoff: %ld/%ld:%ld/%ld "
-                       "barrier: %ld/%ld:%ld",
+                       "rtc: %p ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d ",
                        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_free));
+        cnt += sprintf(&page[cnt], "rtmbe: %d rtbke: %ld rtbre: %ld ",
                        atomic_read(&n_rcu_torture_mberror),
                        n_rcu_torture_boost_ktrerror,
-                       n_rcu_torture_boost_rterror,
+                       n_rcu_torture_boost_rterror);
+        cnt += sprintf(&page[cnt], "rtbf: %ld rtb: %ld nt: %ld ",
                        n_rcu_torture_boost_failure,
                        n_rcu_torture_boosts,
-                       n_rcu_torture_timers,
+                       n_rcu_torture_timers);
+        cnt += sprintf(&page[cnt], "onoff: %ld/%ld:%ld/%ld ",
                        n_online_successes,
                        n_online_attempts,
                        n_offline_successes,
-                       n_offline_attempts,
+                       n_offline_attempts);
+        cnt += sprintf(&page[cnt], "barrier: %ld/%ld:%ld",
                        n_barrier_successes,
                        n_barrier_attempts,
                        n_rcu_torture_barrier_error);
@@ -1445,8 +1461,7 @@ rcu_torture_shutdown(void *arg)
                 delta = shutdown_time - jiffies_snap;
                 if (verbose)
                         printk(KERN_ALERT "%s" TORTURE_FLAG
-                               "rcu_torture_shutdown task: %lu "
-                               "jiffies remaining\n",
+                               "rcu_torture_shutdown task: %lu jiffies remaining\n",
                                torture_type, delta);
                 schedule_timeout_interruptible(delta);
                 jiffies_snap = ACCESS_ONCE(jiffies);
@@ -1498,8 +1513,7 @@ rcu_torture_onoff(void *arg)
                         if (cpu_down(cpu) == 0) {
                                 if (verbose)
                                         printk(KERN_ALERT "%s" TORTURE_FLAG
-                                               "rcu_torture_onoff task: "
-                                               "offlined %d\n",
+                                               "rcu_torture_onoff task: offlined %d\n",
                                                torture_type, cpu);
                                 n_offline_successes++;
                         }
@@ -1512,8 +1526,7 @@ rcu_torture_onoff(void *arg)
                         if (cpu_up(cpu) == 0) {
                                 if (verbose)
                                         printk(KERN_ALERT "%s" TORTURE_FLAG
-                                               "rcu_torture_onoff task: "
-                                               "onlined %d\n",
+                                               "rcu_torture_onoff task: onlined %d\n",
                                                torture_type, cpu);
                                 n_online_successes++;
                         }
@@ -1631,6 +1644,7 @@ void rcu_torture_barrier_cbf(struct rcu_head *rcu)
 static int rcu_torture_barrier_cbs(void *arg)
 {
         long myid = (long)arg;
+        bool lastphase = 0;
         struct rcu_head rcu;
 
         init_rcu_head_on_stack(&rcu);
@@ -1638,9 +1652,11 @@ static int rcu_torture_barrier_cbs(void *arg)
         set_user_nice(current, 19);
         do {
                 wait_event(barrier_cbs_wq[myid],
-                           atomic_read(&barrier_cbs_count) == n_barrier_cbs ||
+                           barrier_phase != lastphase ||
                            kthread_should_stop() ||
                            fullstop != FULLSTOP_DONTSTOP);
+                lastphase = barrier_phase;
+                smp_mb(); /* ensure barrier_phase load before ->call(). */
                 if (kthread_should_stop() || fullstop != FULLSTOP_DONTSTOP)
                         break;
                 cur_ops->call(&rcu, rcu_torture_barrier_cbf);
@@ -1665,7 +1681,8 @@ static int rcu_torture_barrier(void *arg)
         do {
                 atomic_set(&barrier_cbs_invoked, 0);
                 atomic_set(&barrier_cbs_count, n_barrier_cbs);
-                /* wake_up() path contains the required barriers. */
+                smp_mb(); /* Ensure barrier_phase after prior assignments. */
+                barrier_phase = !barrier_phase;
                 for (i = 0; i < n_barrier_cbs; i++)
                         wake_up(&barrier_cbs_wq[i]);
                 wait_event(barrier_wq,
@@ -1684,7 +1701,7 @@ static int rcu_torture_barrier(void *arg)
                 schedule_timeout_interruptible(HZ / 10);
         } while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
         VERBOSE_PRINTK_STRING("rcu_torture_barrier task stopping");
-        rcutorture_shutdown_absorb("rcu_torture_barrier_cbs");
+        rcutorture_shutdown_absorb("rcu_torture_barrier");
         while (!kthread_should_stop())
                 schedule_timeout_interruptible(1);
         return 0;
@@ -1908,8 +1925,8 @@ rcu_torture_init(void)
         static struct rcu_torture_ops *torture_ops[] =
                 { &rcu_ops, &rcu_sync_ops, &rcu_expedited_ops,
                   &rcu_bh_ops, &rcu_bh_sync_ops, &rcu_bh_expedited_ops,
-                  &srcu_ops, &srcu_sync_ops, &srcu_raw_ops,
-                  &srcu_raw_sync_ops, &srcu_expedited_ops,
+                  &srcu_ops, &srcu_sync_ops, &srcu_expedited_ops,
+                  &srcu_raw_ops, &srcu_raw_sync_ops,
                   &sched_ops, &sched_sync_ops, &sched_expedited_ops, };
 
         mutex_lock(&fullstop_mutex);
@@ -1931,8 +1948,7 @@ rcu_torture_init(void)
                 return -EINVAL;
         }
         if (cur_ops->fqs == NULL && fqs_duration != 0) {
-                printk(KERN_ALERT "rcu-torture: ->fqs NULL and non-zero "
-                                  "fqs_duration, fqs disabled.\n");
+                printk(KERN_ALERT "rcu-torture: ->fqs NULL and non-zero fqs_duration, fqs disabled.\n");
                 fqs_duration = 0;
         }
         if (cur_ops->init)
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 4b97bba7396e..f280e542e3e9 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -60,36 +60,44 @@
 
 /* Data structures. */
 
-static struct lock_class_key rcu_node_class[NUM_RCU_LVLS];
-
-#define RCU_STATE_INITIALIZER(structname) { \
-        .level = { &structname##_state.node[0] }, \
-        .levelcnt = { \
-                NUM_RCU_LVL_0,  /* root of hierarchy. */ \
-                NUM_RCU_LVL_1, \
-                NUM_RCU_LVL_2, \
-                NUM_RCU_LVL_3, \
-                NUM_RCU_LVL_4, /* == MAX_RCU_LVLS */ \
-        }, \
+static struct lock_class_key rcu_node_class[RCU_NUM_LVLS];
+
+#define RCU_STATE_INITIALIZER(sname, cr) { \
+        .level = { &sname##_state.node[0] }, \
+        .call = cr, \
         .fqs_state = RCU_GP_IDLE, \
         .gpnum = -300, \
         .completed = -300, \
-        .onofflock = __RAW_SPIN_LOCK_UNLOCKED(&structname##_state.onofflock), \
-        .orphan_nxttail = &structname##_state.orphan_nxtlist, \
-        .orphan_donetail = &structname##_state.orphan_donelist, \
-        .fqslock = __RAW_SPIN_LOCK_UNLOCKED(&structname##_state.fqslock), \
-        .n_force_qs = 0, \
-        .n_force_qs_ngp = 0, \
-        .name = #structname, \
+        .onofflock = __RAW_SPIN_LOCK_UNLOCKED(&sname##_state.onofflock), \
+        .orphan_nxttail = &sname##_state.orphan_nxtlist, \
+        .orphan_donetail = &sname##_state.orphan_donelist, \
+        .barrier_mutex = __MUTEX_INITIALIZER(sname##_state.barrier_mutex), \
+        .fqslock = __RAW_SPIN_LOCK_UNLOCKED(&sname##_state.fqslock), \
+        .name = #sname, \
 }
 
-struct rcu_state rcu_sched_state = RCU_STATE_INITIALIZER(rcu_sched);
+struct rcu_state rcu_sched_state =
+        RCU_STATE_INITIALIZER(rcu_sched, call_rcu_sched);
 DEFINE_PER_CPU(struct rcu_data, rcu_sched_data);
 
-struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh);
+struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh, call_rcu_bh);
 DEFINE_PER_CPU(struct rcu_data, rcu_bh_data);
 
 static struct rcu_state *rcu_state;
+LIST_HEAD(rcu_struct_flavors);
+
+/* Increase (but not decrease) the CONFIG_RCU_FANOUT_LEAF at boot time. */
+static int rcu_fanout_leaf = CONFIG_RCU_FANOUT_LEAF;
+module_param(rcu_fanout_leaf, int, 0);
+int rcu_num_lvls __read_mostly = RCU_NUM_LVLS;
+static int num_rcu_lvl[] = {  /* Number of rcu_nodes at specified level. */
+        NUM_RCU_LVL_0,
+        NUM_RCU_LVL_1,
+        NUM_RCU_LVL_2,
+        NUM_RCU_LVL_3,
+        NUM_RCU_LVL_4,
+};
+int rcu_num_nodes __read_mostly = NUM_RCU_NODES; /* Total # rcu_nodes in use. */
 
 /*
  * The rcu_scheduler_active variable transitions from zero to one just
@@ -147,13 +155,6 @@ static void invoke_rcu_callbacks(struct rcu_state *rsp, struct rcu_data *rdp);
 unsigned long rcutorture_testseq;
 unsigned long rcutorture_vernum;
 
-/* State information for rcu_barrier() and friends. */
-
-static DEFINE_PER_CPU(struct rcu_head, rcu_barrier_head) = {NULL};
-static atomic_t rcu_barrier_cpu_count;
-static DEFINE_MUTEX(rcu_barrier_mutex);
-static struct completion rcu_barrier_completion;
-
 /*
  * Return true if an RCU grace period is in progress.  The ACCESS_ONCE()s
  * permit this function to be invoked without holding the root rcu_node
@@ -358,7 +359,7 @@ static void rcu_idle_enter_common(struct rcu_dynticks *rdtp, long long oldval)
                 struct task_struct *idle = idle_task(smp_processor_id());
 
                 trace_rcu_dyntick("Error on entry: not idle task", oldval, 0);
-                ftrace_dump(DUMP_ALL);
+                ftrace_dump(DUMP_ORIG);
                 WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
                           current->pid, current->comm,
                           idle->pid, idle->comm); /* must be idle task! */
@@ -468,7 +469,7 @@ static void rcu_idle_exit_common(struct rcu_dynticks *rdtp, long long oldval)
 
                 trace_rcu_dyntick("Error on exit: not idle task",
                                   oldval, rdtp->dynticks_nesting);
-                ftrace_dump(DUMP_ALL);
+                ftrace_dump(DUMP_ORIG);
                 WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
                           current->pid, current->comm,
                           idle->pid, idle->comm); /* must be idle task! */
@@ -585,8 +586,6 @@ void rcu_nmi_exit(void)
         WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
 }
 
-#ifdef CONFIG_PROVE_RCU
-
 /**
  * rcu_is_cpu_idle - see if RCU thinks that the current CPU is idle
  *
@@ -604,7 +603,7 @@ int rcu_is_cpu_idle(void)
 }
 EXPORT_SYMBOL(rcu_is_cpu_idle);
 
-#ifdef CONFIG_HOTPLUG_CPU
+#if defined(CONFIG_PROVE_RCU) && defined(CONFIG_HOTPLUG_CPU)
 
 /*
  * Is the current CPU online?  Disable preemption to avoid false positives
@@ -645,9 +644,7 @@ bool rcu_lockdep_current_cpu_online(void)
 }
 EXPORT_SYMBOL_GPL(rcu_lockdep_current_cpu_online);
 
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-
-#endif /* #ifdef CONFIG_PROVE_RCU */
+#endif /* #if defined(CONFIG_PROVE_RCU) && defined(CONFIG_HOTPLUG_CPU) */
 
 /**
  * rcu_is_cpu_rrupt_from_idle - see if idle or immediately interrupted from idle
@@ -733,7 +730,7 @@ static void print_other_cpu_stall(struct rcu_state *rsp)
         int cpu;
         long delta;
         unsigned long flags;
-        int ndetected;
+        int ndetected = 0;
         struct rcu_node *rnp = rcu_get_root(rsp);
 
         /* Only let one CPU complain about others per time interval. */
@@ -774,7 +771,7 @@ static void print_other_cpu_stall(struct rcu_state *rsp)
          */
         rnp = rcu_get_root(rsp);
         raw_spin_lock_irqsave(&rnp->lock, flags);
-        ndetected = rcu_print_task_stall(rnp);
+        ndetected += rcu_print_task_stall(rnp);
         raw_spin_unlock_irqrestore(&rnp->lock, flags);
 
         print_cpu_stall_info_end();
@@ -860,9 +857,10 @@ static int rcu_panic(struct notifier_block *this, unsigned long ev, void *ptr)
  */
 void rcu_cpu_stall_reset(void)
 {
-        rcu_sched_state.jiffies_stall = jiffies + ULONG_MAX / 2;
-        rcu_bh_state.jiffies_stall = jiffies + ULONG_MAX / 2;
-        rcu_preempt_stall_reset();
+        struct rcu_state *rsp;
+
+        for_each_rcu_flavor(rsp)
+                rsp->jiffies_stall = jiffies + ULONG_MAX / 2;
 }
 
 static struct notifier_block rcu_panic_block = {
@@ -894,8 +892,9 @@ static void __note_new_gpnum(struct rcu_state *rsp, struct rcu_node *rnp, struct
                 if (rnp->qsmask & rdp->grpmask) {
                         rdp->qs_pending = 1;
                         rdp->passed_quiesce = 0;
-                } else
+                } else {
                         rdp->qs_pending = 0;
+                }
                 zero_cpu_stall_ticks(rdp);
         }
 }
@@ -937,6 +936,18 @@ check_for_new_grace_period(struct rcu_state *rsp, struct rcu_data *rdp)
 }
 
 /*
+ * Initialize the specified rcu_data structure's callback list to empty.
+ */
+static void init_callback_list(struct rcu_data *rdp)
+{
+        int i;
+
+        rdp->nxtlist = NULL;
+        for (i = 0; i < RCU_NEXT_SIZE; i++)
+                rdp->nxttail[i] = &rdp->nxtlist;
+}
+
+/*
  * Advance this CPU's callbacks, but only if the current grace period
  * has ended.  This may be called only from the CPU to whom the rdp
  * belongs.  In addition, the corresponding leaf rcu_node structure's
@@ -1328,8 +1339,6 @@ static void
 rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
                           struct rcu_node *rnp, struct rcu_data *rdp)
 {
-        int i;
-
         /*
          * Orphan the callbacks.  First adjust the counts.  This is safe
          * because ->onofflock excludes _rcu_barrier()'s adoption of
@@ -1340,7 +1349,7 @@ rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
                 rsp->qlen += rdp->qlen;
                 rdp->n_cbs_orphaned += rdp->qlen;
                 rdp->qlen_lazy = 0;
-                rdp->qlen = 0;
+                ACCESS_ONCE(rdp->qlen) = 0;
         }
 
         /*
@@ -1369,9 +1378,7 @@ rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
         }
 
         /* Finally, initialize the rcu_data structure's list to empty.  */
-        rdp->nxtlist = NULL;
-        for (i = 0; i < RCU_NEXT_SIZE; i++)
-                rdp->nxttail[i] = &rdp->nxtlist;
+        init_callback_list(rdp);
 }
 
 /*
@@ -1505,6 +1512,9 @@ static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
                 raw_spin_unlock_irqrestore(&rnp->lock, flags);
         if (need_report & RCU_OFL_TASKS_EXP_GP)
                 rcu_report_exp_rnp(rsp, rnp, true);
+        WARN_ONCE(rdp->qlen != 0 || rdp->nxtlist != NULL,
+                  "rcu_cleanup_dead_cpu: Callbacks on offline CPU %d: qlen=%lu, nxtlist=%p\n",
+                  cpu, rdp->qlen, rdp->nxtlist);
 }
 
 #else /* #ifdef CONFIG_HOTPLUG_CPU */
@@ -1592,7 +1602,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
         }
         smp_mb(); /* List handling before counting for rcu_barrier(). */
         rdp->qlen_lazy -= count_lazy;
-        rdp->qlen -= count;
+        ACCESS_ONCE(rdp->qlen) -= count;
         rdp->n_cbs_invoked += count;
 
         /* Reinstate batch limit if we have worked down the excess. */
@@ -1605,6 +1615,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
                 rdp->n_force_qs_snap = rsp->n_force_qs;
         } else if (rdp->qlen < rdp->qlen_last_fqs_check - qhimark)
                 rdp->qlen_last_fqs_check = rdp->qlen;
+        WARN_ON_ONCE((rdp->nxtlist == NULL) != (rdp->qlen == 0));
 
         local_irq_restore(flags);
 
@@ -1745,8 +1756,6 @@ static void force_quiescent_state(struct rcu_state *rsp, int relaxed)
                 break; /* grace period idle or initializing, ignore. */
 
         case RCU_SAVE_DYNTICK:
-                if (RCU_SIGNAL_INIT != RCU_SAVE_DYNTICK)
-                        break; /* So gcc recognizes the dead code. */
 
                 raw_spin_unlock(&rnp->lock);  /* irqs remain disabled */
 
@@ -1788,9 +1797,10 @@ unlock_fqs_ret:
  * whom the rdp belongs.
  */
 static void
-__rcu_process_callbacks(struct rcu_state *rsp, struct rcu_data *rdp)
+__rcu_process_callbacks(struct rcu_state *rsp)
 {
         unsigned long flags;
+        struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
 
         WARN_ON_ONCE(rdp->beenonline == 0);
 
@@ -1826,11 +1836,11 @@ __rcu_process_callbacks(struct rcu_state *rsp, struct rcu_data *rdp)
  */
 static void rcu_process_callbacks(struct softirq_action *unused)
 {
+        struct rcu_state *rsp;
+
         trace_rcu_utilization("Start RCU core");
-        __rcu_process_callbacks(&rcu_sched_state,
-                                &__get_cpu_var(rcu_sched_data));
-        __rcu_process_callbacks(&rcu_bh_state, &__get_cpu_var(rcu_bh_data));
-        rcu_preempt_process_callbacks();
+        for_each_rcu_flavor(rsp)
+                __rcu_process_callbacks(rsp);
         trace_rcu_utilization("End RCU core");
 }
 
@@ -1857,6 +1867,56 @@ static void invoke_rcu_core(void)
         raise_softirq(RCU_SOFTIRQ);
 }
 
+/*
+ * Handle any core-RCU processing required by a call_rcu() invocation.
+ */
+static void __call_rcu_core(struct rcu_state *rsp, struct rcu_data *rdp,
+                            struct rcu_head *head, unsigned long flags)
+{
+        /*
+         * If called from an extended quiescent state, invoke the RCU
+         * core in order to force a re-evaluation of RCU's idleness.
+         */
+        if (rcu_is_cpu_idle() && cpu_online(smp_processor_id()))
+                invoke_rcu_core();
+
+        /* If interrupts were disabled or CPU offline, don't invoke RCU core. */
+        if (irqs_disabled_flags(flags) || cpu_is_offline(smp_processor_id()))
+                return;
+
+        /*
+         * Force the grace period if too many callbacks or too long waiting.
+         * Enforce hysteresis, and don't invoke force_quiescent_state()
+         * if some other CPU has recently done so.  Also, don't bother
+         * invoking force_quiescent_state() if the newly enqueued callback
+         * is the only one waiting for a grace period to complete.
+         */
+        if (unlikely(rdp->qlen > rdp->qlen_last_fqs_check + qhimark)) {
+
+                /* Are we ignoring a completed grace period? */
+                rcu_process_gp_end(rsp, rdp);
+                check_for_new_grace_period(rsp, rdp);
+
+                /* Start a new grace period if one not already started. */
+                if (!rcu_gp_in_progress(rsp)) {
+                        unsigned long nestflag;
+                        struct rcu_node *rnp_root = rcu_get_root(rsp);
+
+                        raw_spin_lock_irqsave(&rnp_root->lock, nestflag);
+                        rcu_start_gp(rsp, nestflag);  /* rlses rnp_root->lock */
+                } else {
+                        /* Give the grace period a kick. */
+                        rdp->blimit = LONG_MAX;
+                        if (rsp->n_force_qs == rdp->n_force_qs_snap &&
+                            *rdp->nxttail[RCU_DONE_TAIL] != head)
+                                force_quiescent_state(rsp, 0);
+                        rdp->n_force_qs_snap = rsp->n_force_qs;
+                        rdp->qlen_last_fqs_check = rdp->qlen;
+                }
+        } else if (ULONG_CMP_LT(ACCESS_ONCE(rsp->jiffies_force_qs), jiffies))
+                force_quiescent_state(rsp, 1);
+}
+
 static void
 __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
            struct rcu_state *rsp, bool lazy)
@@ -1881,7 +1941,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
         rdp = this_cpu_ptr(rsp->rda);
 
         /* Add the callback to our list. */
-        rdp->qlen++;
+        ACCESS_ONCE(rdp->qlen)++;
         if (lazy)
                 rdp->qlen_lazy++;
         else
@@ -1896,43 +1956,8 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
         else
                 trace_rcu_callback(rsp->name, head, rdp->qlen_lazy, rdp->qlen);
 
-        /* If interrupts were disabled, don't dive into RCU core. */
-        if (irqs_disabled_flags(flags)) {
-                local_irq_restore(flags);
-                return;
-        }
-
-        /*
-         * Force the grace period if too many callbacks or too long waiting.
-         * Enforce hysteresis, and don't invoke force_quiescent_state()
-         * if some other CPU has recently done so.  Also, don't bother
-         * invoking force_quiescent_state() if the newly enqueued callback
-         * is the only one waiting for a grace period to complete.
-         */
-        if (unlikely(rdp->qlen > rdp->qlen_last_fqs_check + qhimark)) {
-
-                /* Are we ignoring a completed grace period? */
-                rcu_process_gp_end(rsp, rdp);
-                check_for_new_grace_period(rsp, rdp);
-
-                /* Start a new grace period if one not already started. */
-                if (!rcu_gp_in_progress(rsp)) {
-                        unsigned long nestflag;
-                        struct rcu_node *rnp_root = rcu_get_root(rsp);
-
-                        raw_spin_lock_irqsave(&rnp_root->lock, nestflag);
-                        rcu_start_gp(rsp, nestflag);  /* rlses rnp_root->lock */
-                } else {
-                        /* Give the grace period a kick. */
-                        rdp->blimit = LONG_MAX;
-                        if (rsp->n_force_qs == rdp->n_force_qs_snap &&
-                            *rdp->nxttail[RCU_DONE_TAIL] != head)
-                                force_quiescent_state(rsp, 0);
-                        rdp->n_force_qs_snap = rsp->n_force_qs;
-                        rdp->qlen_last_fqs_check = rdp->qlen;
-                }
-        } else if (ULONG_CMP_LT(ACCESS_ONCE(rsp->jiffies_force_qs), jiffies))
-                force_quiescent_state(rsp, 1);
+        /* Go handle any RCU core processing required. */
+        __call_rcu_core(rsp, rdp, head, flags);
         local_irq_restore(flags);
 }
 
@@ -1962,28 +1987,16 @@ EXPORT_SYMBOL_GPL(call_rcu_bh);
  * occasionally incorrectly indicate that there are multiple CPUs online
  * when there was in fact only one the whole time, as this just adds
  * some overhead: RCU still operates correctly.
- *
- * Of course, sampling num_online_cpus() with preemption enabled can
- * give erroneous results if there are concurrent CPU-hotplug operations.
- * For example, given a demonic sequence of preemptions in num_online_cpus()
- * and CPU-hotplug operations, there could be two or more CPUs online at
- * all times, but num_online_cpus() might well return one (or even zero).
- *
- * However, all such demonic sequences require at least one CPU-offline
- * operation.  Furthermore, rcu_blocking_is_gp() giving the wrong answer
- * is only a problem if there is an RCU read-side critical section executing
- * throughout.  But RCU-sched and RCU-bh read-side critical sections
- * disable either preemption or bh, which prevents a CPU from going offline.
- * Therefore, the only way that rcu_blocking_is_gp() can incorrectly return
- * that there is only one CPU when in fact there was more than one throughout
- * is when there were no RCU readers in the system.  If there are no
- * RCU readers, the grace period by definition can be of zero length,
- * regardless of the number of online CPUs.
  */
 static inline int rcu_blocking_is_gp(void)
 {
+        int ret;
+
         might_sleep();  /* Check for RCU read-side critical section. */
-        return num_online_cpus() <= 1;
+        preempt_disable();
+        ret = num_online_cpus() <= 1;
+        preempt_enable();
+        return ret;
 }
 
 /**
@@ -2118,9 +2131,9 @@ void synchronize_sched_expedited(void)
                 put_online_cpus();
 
                 /* No joy, try again later.  Or just synchronize_sched(). */
-                if (trycount++ < 10)
+                if (trycount++ < 10) {
                         udelay(trycount * num_online_cpus());
-                else {
+                } else {
                         synchronize_sched();
                         return;
                 }
@@ -2241,9 +2254,12 @@ static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp)
  */
 static int rcu_pending(int cpu)
 {
-        return __rcu_pending(&rcu_sched_state, &per_cpu(rcu_sched_data, cpu)) ||
-               __rcu_pending(&rcu_bh_state, &per_cpu(rcu_bh_data, cpu)) ||
-               rcu_preempt_pending(cpu);
+        struct rcu_state *rsp;
+
+        for_each_rcu_flavor(rsp)
+                if (__rcu_pending(rsp, per_cpu_ptr(rsp->rda, cpu)))
+                        return 1;
+        return 0;
 }
 
 /*
@@ -2253,20 +2269,41 @@ static int rcu_pending(int cpu)
  */
 static int rcu_cpu_has_callbacks(int cpu)
 {
+        struct rcu_state *rsp;
+
         /* RCU callbacks either ready or pending? */
-        return per_cpu(rcu_sched_data, cpu).nxtlist ||
-               per_cpu(rcu_bh_data, cpu).nxtlist ||
-               rcu_preempt_cpu_has_callbacks(cpu);
+        for_each_rcu_flavor(rsp)
+                if (per_cpu_ptr(rsp->rda, cpu)->nxtlist)
+                        return 1;
+        return 0;
+}
+
+/*
+ * Helper function for _rcu_barrier() tracing.  If tracing is disabled,
+ * the compiler is expected to optimize this away.
+ */
+static void _rcu_barrier_trace(struct rcu_state *rsp, char *s,
+                               int cpu, unsigned long done)
+{
+        trace_rcu_barrier(rsp->name, s, cpu,
+                          atomic_read(&rsp->barrier_cpu_count), done);
 }
 
 /*
  * RCU callback function for _rcu_barrier().  If we are last, wake
  * up the task executing _rcu_barrier().
  */
-static void rcu_barrier_callback(struct rcu_head *notused)
+static void rcu_barrier_callback(struct rcu_head *rhp)
 {
-        if (atomic_dec_and_test(&rcu_barrier_cpu_count))
-                complete(&rcu_barrier_completion);
+        struct rcu_data *rdp = container_of(rhp, struct rcu_data, barrier_head);
+        struct rcu_state *rsp = rdp->rsp;
+
+        if (atomic_dec_and_test(&rsp->barrier_cpu_count)) {
+                _rcu_barrier_trace(rsp, "LastCB", -1, rsp->n_barrier_done);
+                complete(&rsp->barrier_completion);
+        } else {
+                _rcu_barrier_trace(rsp, "CB", -1, rsp->n_barrier_done);
+        }
 }
 
 /*
@@ -2274,35 +2311,63 @@ static void rcu_barrier_callback(struct rcu_head *notused)
  */
 static void rcu_barrier_func(void *type)
 {
-        int cpu = smp_processor_id();
-        struct rcu_head *head = &per_cpu(rcu_barrier_head, cpu);
-        void (*call_rcu_func)(struct rcu_head *head,
-                              void (*func)(struct rcu_head *head));
+        struct rcu_state *rsp = type;
+        struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
 
-        atomic_inc(&rcu_barrier_cpu_count);
-        call_rcu_func = type;
-        call_rcu_func(head, rcu_barrier_callback);
+        _rcu_barrier_trace(rsp, "IRQ", -1, rsp->n_barrier_done);
+        atomic_inc(&rsp->barrier_cpu_count);
+        rsp->call(&rdp->barrier_head, rcu_barrier_callback);
 }
 
 /*
  * Orchestrate the specified type of RCU barrier, waiting for all
  * RCU callbacks of the specified type to complete.
  */
-static void _rcu_barrier(struct rcu_state *rsp,
-                         void (*call_rcu_func)(struct rcu_head *head,
-                                               void (*func)(struct rcu_head *head)))
+static void _rcu_barrier(struct rcu_state *rsp)
 {
         int cpu;
         unsigned long flags;
         struct rcu_data *rdp;
-        struct rcu_head rh;
+        struct rcu_data rd;
+        unsigned long snap = ACCESS_ONCE(rsp->n_barrier_done);
+        unsigned long snap_done;
 
-        init_rcu_head_on_stack(&rh);
+        init_rcu_head_on_stack(&rd.barrier_head);
+        _rcu_barrier_trace(rsp, "Begin", -1, snap);
 
         /* Take mutex to serialize concurrent rcu_barrier() requests. */
-        mutex_lock(&rcu_barrier_mutex);
+        mutex_lock(&rsp->barrier_mutex);
+
+        /*
+         * Ensure that all prior references, including to ->n_barrier_done,
+         * are ordered before the _rcu_barrier() machinery.
+         */
+        smp_mb();  /* See above block comment. */
+
+        /*
+         * Recheck ->n_barrier_done to see if others did our work for us.
+         * This means checking ->n_barrier_done for an even-to-odd-to-even
+         * transition.  The "if" expression below therefore rounds the old
+         * value up to the next even number and adds two before comparing.
+         */
+        snap_done = ACCESS_ONCE(rsp->n_barrier_done);
+        _rcu_barrier_trace(rsp, "Check", -1, snap_done);
+        if (ULONG_CMP_GE(snap_done, ((snap + 1) & ~0x1) + 2)) {
+                _rcu_barrier_trace(rsp, "EarlyExit", -1, snap_done);
+                smp_mb(); /* caller's subsequent code after above check. */
+                mutex_unlock(&rsp->barrier_mutex);
+                return;
+        }
 
-        smp_mb();  /* Prevent any prior operations from leaking in. */
+        /*
+         * Increment ->n_barrier_done to avoid duplicate work.  Use
+         * ACCESS_ONCE() to prevent the compiler from speculating
+         * the increment to precede the early-exit check.
+         */
+        ACCESS_ONCE(rsp->n_barrier_done)++;
+        WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
+        _rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
+        smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
 
         /*
          * Initialize the count to one rather than to zero in order to
@@ -2321,8 +2386,8 @@ static void _rcu_barrier(struct rcu_state *rsp,
          * 6.   Both rcu_barrier_callback() callbacks are invoked, awakening
          *      us -- but before CPU 1's orphaned callbacks are invoked!!!
          */
-        init_completion(&rcu_barrier_completion);
-        atomic_set(&rcu_barrier_cpu_count, 1);
+        init_completion(&rsp->barrier_completion);
+        atomic_set(&rsp->barrier_cpu_count, 1);
         raw_spin_lock_irqsave(&rsp->onofflock, flags);
         rsp->rcu_barrier_in_progress = current;
         raw_spin_unlock_irqrestore(&rsp->onofflock, flags);
@@ -2338,14 +2403,19 @@ static void _rcu_barrier(struct rcu_state *rsp,
                 preempt_disable();
                 rdp = per_cpu_ptr(rsp->rda, cpu);
                 if (cpu_is_offline(cpu)) {
+                        _rcu_barrier_trace(rsp, "Offline", cpu,
+                                           rsp->n_barrier_done);
                         preempt_enable();
                         while (cpu_is_offline(cpu) && ACCESS_ONCE(rdp->qlen))
                                 schedule_timeout_interruptible(1);
                 } else if (ACCESS_ONCE(rdp->qlen)) {
-                        smp_call_function_single(cpu, rcu_barrier_func,
-                                                 (void *)call_rcu_func, 1);
+                        _rcu_barrier_trace(rsp, "OnlineQ", cpu,
+                                           rsp->n_barrier_done);
+                        smp_call_function_single(cpu, rcu_barrier_func, rsp, 1);
                         preempt_enable();
                 } else {
+                        _rcu_barrier_trace(rsp, "OnlineNQ", cpu,
+                                           rsp->n_barrier_done);
                         preempt_enable();
                 }
         }
@@ -2362,24 +2432,32 @@ static void _rcu_barrier(struct rcu_state *rsp,
         rcu_adopt_orphan_cbs(rsp);
         rsp->rcu_barrier_in_progress = NULL;
         raw_spin_unlock_irqrestore(&rsp->onofflock, flags);
-        atomic_inc(&rcu_barrier_cpu_count);
+        atomic_inc(&rsp->barrier_cpu_count);
         smp_mb__after_atomic_inc(); /* Ensure atomic_inc() before callback. */
-        call_rcu_func(&rh, rcu_barrier_callback);
+        rd.rsp = rsp;
+        rsp->call(&rd.barrier_head, rcu_barrier_callback);
 
         /*
          * Now that we have an rcu_barrier_callback() callback on each
          * CPU, and thus each counted, remove the initial count.
          */
-        if (atomic_dec_and_test(&rcu_barrier_cpu_count))
-                complete(&rcu_barrier_completion);
+        if (atomic_dec_and_test(&rsp->barrier_cpu_count))
+                complete(&rsp->barrier_completion);
+
+        /* Increment ->n_barrier_done to prevent duplicate work. */
+        smp_mb(); /* Keep increment after above mechanism. */
+        ACCESS_ONCE(rsp->n_barrier_done)++;
+        WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
+        _rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
+        smp_mb(); /* Keep increment before caller's subsequent code. */
 
         /* Wait for all rcu_barrier_callback() callbacks to be invoked. */
-        wait_for_completion(&rcu_barrier_completion);
+        wait_for_completion(&rsp->barrier_completion);
 
         /* Other rcu_barrier() invocations can now safely proceed. */
-        mutex_unlock(&rcu_barrier_mutex);
+        mutex_unlock(&rsp->barrier_mutex);
 
-        destroy_rcu_head_on_stack(&rh);
+        destroy_rcu_head_on_stack(&rd.barrier_head);
 }
 
 /**
@@ -2387,7 +2465,7 @@ static void _rcu_barrier(struct rcu_state *rsp,
  */
 void rcu_barrier_bh(void)
 {
-        _rcu_barrier(&rcu_bh_state, call_rcu_bh);
+        _rcu_barrier(&rcu_bh_state);
 }
 EXPORT_SYMBOL_GPL(rcu_barrier_bh);
 
@@ -2396,7 +2474,7 @@ EXPORT_SYMBOL_GPL(rcu_barrier_bh);
  */
 void rcu_barrier_sched(void)
 {
-        _rcu_barrier(&rcu_sched_state, call_rcu_sched);
+        _rcu_barrier(&rcu_sched_state);
 }
 EXPORT_SYMBOL_GPL(rcu_barrier_sched);
 
@@ -2407,18 +2485,15 @@ static void __init
 rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
 {
         unsigned long flags;
-        int i;
         struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
         struct rcu_node *rnp = rcu_get_root(rsp);
 
         /* Set up local state, ensuring consistent view of global state. */
         raw_spin_lock_irqsave(&rnp->lock, flags);
         rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
-        rdp->nxtlist = NULL;
-        for (i = 0; i < RCU_NEXT_SIZE; i++)
-                rdp->nxttail[i] = &rdp->nxtlist;
+        init_callback_list(rdp);
         rdp->qlen_lazy = 0;
-        rdp->qlen = 0;
+        ACCESS_ONCE(rdp->qlen) = 0;
         rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
         WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
         WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
@@ -2492,9 +2567,11 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
 
 static void __cpuinit rcu_prepare_cpu(int cpu)
 {
-        rcu_init_percpu_data(cpu, &rcu_sched_state, 0);
-        rcu_init_percpu_data(cpu, &rcu_bh_state, 0);
-        rcu_preempt_init_percpu_data(cpu);
+        struct rcu_state *rsp;
+
+        for_each_rcu_flavor(rsp)
+                rcu_init_percpu_data(cpu, rsp,
+                                     strcmp(rsp->name, "rcu_preempt") == 0);
 }
 
 /*
@@ -2506,6 +2583,7 @@ static int __cpuinit rcu_cpu_notify(struct notifier_block *self,
         long cpu = (long)hcpu;
         struct rcu_data *rdp = per_cpu_ptr(rcu_state->rda, cpu);
         struct rcu_node *rnp = rdp->mynode;
+        struct rcu_state *rsp;
 
         trace_rcu_utilization("Start CPU hotplug");
         switch (action) {
@@ -2530,18 +2608,16 @@ static int __cpuinit rcu_cpu_notify(struct notifier_block *self,
                  * touch any data without introducing corruption. We send the
                  * dying CPU's callbacks to an arbitrarily chosen online CPU.
                  */
-                rcu_cleanup_dying_cpu(&rcu_bh_state);
-                rcu_cleanup_dying_cpu(&rcu_sched_state);
-                rcu_preempt_cleanup_dying_cpu();
+                for_each_rcu_flavor(rsp)
+                        rcu_cleanup_dying_cpu(rsp);
                 rcu_cleanup_after_idle(cpu);
                 break;
         case CPU_DEAD:
         case CPU_DEAD_FROZEN:
         case CPU_UP_CANCELED:
         case CPU_UP_CANCELED_FROZEN:
-                rcu_cleanup_dead_cpu(cpu, &rcu_bh_state);
-                rcu_cleanup_dead_cpu(cpu, &rcu_sched_state);
-                rcu_preempt_cleanup_dead_cpu(cpu);
+                for_each_rcu_flavor(rsp)
+                        rcu_cleanup_dead_cpu(cpu, rsp);
                 break;
         default:
                 break;
@@ -2574,9 +2650,9 @@ static void __init rcu_init_levelspread(struct rcu_state *rsp)
 {
         int i;
 
-        for (i = NUM_RCU_LVLS - 1; i > 0; i--)
+        for (i = rcu_num_lvls - 1; i > 0; i--)
                 rsp->levelspread[i] = CONFIG_RCU_FANOUT;
-        rsp->levelspread[0] = CONFIG_RCU_FANOUT_LEAF;
+        rsp->levelspread[0] = rcu_fanout_leaf;
 }
 #else /* #ifdef CONFIG_RCU_FANOUT_EXACT */
 static void __init rcu_init_levelspread(struct rcu_state *rsp)
@@ -2586,7 +2662,7 @@ static void __init rcu_init_levelspread(struct rcu_state *rsp)
         int i;
 
         cprv = NR_CPUS;
-        for (i = NUM_RCU_LVLS - 1; i >= 0; i--) {
+        for (i = rcu_num_lvls - 1; i >= 0; i--) {
                 ccur = rsp->levelcnt[i];
                 rsp->levelspread[i] = (cprv + ccur - 1) / ccur;
                 cprv = ccur;
@@ -2613,13 +2689,15 @@ static void __init rcu_init_one(struct rcu_state *rsp,
 
         /* Initialize the level-tracking arrays. */
 
-        for (i = 1; i < NUM_RCU_LVLS; i++)
+        for (i = 0; i < rcu_num_lvls; i++)
+                rsp->levelcnt[i] = num_rcu_lvl[i];
+        for (i = 1; i < rcu_num_lvls; i++)
                 rsp->level[i] = rsp->level[i - 1] + rsp->levelcnt[i - 1];
         rcu_init_levelspread(rsp);
 
         /* Initialize the elements themselves, starting from the leaves. */
 
-        for (i = NUM_RCU_LVLS - 1; i >= 0; i--) {
+        for (i = rcu_num_lvls - 1; i >= 0; i--) {
                 cpustride *= rsp->levelspread[i];
                 rnp = rsp->level[i];
                 for (j = 0; j < rsp->levelcnt[i]; j++, rnp++) {
@@ -2649,13 +2727,74 @@ static void __init rcu_init_one(struct rcu_state *rsp,
         }
 
         rsp->rda = rda;
-        rnp = rsp->level[NUM_RCU_LVLS - 1];
+        rnp = rsp->level[rcu_num_lvls - 1];
         for_each_possible_cpu(i) {
                 while (i > rnp->grphi)
                         rnp++;
                 per_cpu_ptr(rsp->rda, i)->mynode = rnp;
                 rcu_boot_init_percpu_data(i, rsp);
         }
+        list_add(&rsp->flavors, &rcu_struct_flavors);
+}
+
+/*
+ * Compute the rcu_node tree geometry from kernel parameters.  This cannot
+ * replace the definitions in rcutree.h because those are needed to size
+ * the ->node array in the rcu_state structure.
+ */
+static void __init rcu_init_geometry(void)
+{
+        int i;
+        int j;
+        int n = nr_cpu_ids;
+        int rcu_capacity[MAX_RCU_LVLS + 1];
+
+        /* If the compile-time values are accurate, just leave. */
+        if (rcu_fanout_leaf == CONFIG_RCU_FANOUT_LEAF)
+                return;
+
+        /*
+         * Compute number of nodes that can be handled an rcu_node tree
+         * with the given number of levels.  Setting rcu_capacity[0] makes
+         * some of the arithmetic easier.
+         */
+        rcu_capacity[0] = 1;
+        rcu_capacity[1] = rcu_fanout_leaf;
+        for (i = 2; i <= MAX_RCU_LVLS; i++)
+                rcu_capacity[i] = rcu_capacity[i - 1] * CONFIG_RCU_FANOUT;
+
+        /*
+         * The boot-time rcu_fanout_leaf parameter is only permitted
+         * to increase the leaf-level fanout, not decrease it.  Of course,
+         * the leaf-level fanout cannot exceed the number of bits in
+         * the rcu_node masks.  Finally, the tree must be able to accommodate
+         * the configured number of CPUs.  Complain and fall back to the
+         * compile-time values if these limits are exceeded.
+         */
+        if (rcu_fanout_leaf < CONFIG_RCU_FANOUT_LEAF ||
+            rcu_fanout_leaf > sizeof(unsigned long) * 8 ||
+            n > rcu_capacity[MAX_RCU_LVLS]) {
+                WARN_ON(1);
+                return;
+        }
+
+        /* Calculate the number of rcu_nodes at each level of the tree. */
+        for (i = 1; i <= MAX_RCU_LVLS; i++)
+                if (n <= rcu_capacity[i]) {
+                        for (j = 0; j <= i; j++)
+                                num_rcu_lvl[j] =
+                                        DIV_ROUND_UP(n, rcu_capacity[i - j]);
+                        rcu_num_lvls = i;
+                        for (j = i + 1; j <= MAX_RCU_LVLS; j++)
+                                num_rcu_lvl[j] = 0;
+                        break;
+                }
+
+        /* Calculate the total number of rcu_node structures. */
+        rcu_num_nodes = 0;
+        for (i = 0; i <= MAX_RCU_LVLS; i++)
+                rcu_num_nodes += num_rcu_lvl[i];
+        rcu_num_nodes -= n;
 }
 
 void __init rcu_init(void)
@@ -2663,6 +2802,7 @@ void __init rcu_init(void)
         int cpu;
 
         rcu_bootup_announce();
+        rcu_init_geometry();
         rcu_init_one(&rcu_sched_state, &rcu_sched_data);
         rcu_init_one(&rcu_bh_state, &rcu_bh_data);
         __rcu_init_preempt();
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 19b61ac1079f..4d29169f2124 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -42,28 +42,28 @@
 #define RCU_FANOUT_4          (RCU_FANOUT_3 * CONFIG_RCU_FANOUT)
 
 #if NR_CPUS <= RCU_FANOUT_1
-#  define NUM_RCU_LVLS        1
+#  define RCU_NUM_LVLS        1
 #  define NUM_RCU_LVL_0       1
 #  define NUM_RCU_LVL_1       (NR_CPUS)
 #  define NUM_RCU_LVL_2       0
 #  define NUM_RCU_LVL_3       0
 #  define NUM_RCU_LVL_4       0
 #elif NR_CPUS <= RCU_FANOUT_2
-#  define NUM_RCU_LVLS        2
+#  define RCU_NUM_LVLS        2
 #  define NUM_RCU_LVL_0       1
 #  define NUM_RCU_LVL_1       DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_1)
 #  define NUM_RCU_LVL_2       (NR_CPUS)
 #  define NUM_RCU_LVL_3       0
 #  define NUM_RCU_LVL_4       0
 #elif NR_CPUS <= RCU_FANOUT_3
-#  define NUM_RCU_LVLS        3
+#  define RCU_NUM_LVLS        3
 #  define NUM_RCU_LVL_0       1
 #  define NUM_RCU_LVL_1       DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_2)
 #  define NUM_RCU_LVL_2       DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_1)
 #  define NUM_RCU_LVL_3       (NR_CPUS)
 #  define NUM_RCU_LVL_4       0
 #elif NR_CPUS <= RCU_FANOUT_4
-#  define NUM_RCU_LVLS        4
+#  define RCU_NUM_LVLS        4
 #  define NUM_RCU_LVL_0       1
 #  define NUM_RCU_LVL_1       DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_3)
 #  define NUM_RCU_LVL_2       DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_2)
@@ -76,6 +76,9 @@
 #define RCU_SUM (NUM_RCU_LVL_0 + NUM_RCU_LVL_1 + NUM_RCU_LVL_2 + NUM_RCU_LVL_3 + NUM_RCU_LVL_4)
 #define NUM_RCU_NODES (RCU_SUM - NR_CPUS)
 
+extern int rcu_num_lvls;
+extern int rcu_num_nodes;
+
 /*
  * Dynticks per-CPU state.
  */
@@ -97,6 +100,7 @@ struct rcu_dynticks {
                                     /* # times non-lazy CBs posted to CPU. */
         unsigned long nonlazy_posted_snap;
                                     /* idle-period nonlazy_posted snapshot. */
+        int tick_nohz_enabled_snap; /* Previously seen value from sysfs. */
 #endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
 };
 
@@ -206,7 +210,7 @@ struct rcu_node {
  */
 #define rcu_for_each_node_breadth_first(rsp, rnp) \
         for ((rnp) = &(rsp)->node[0]; \
-             (rnp) < &(rsp)->node[NUM_RCU_NODES]; (rnp)++)
+             (rnp) < &(rsp)->node[rcu_num_nodes]; (rnp)++)
 
 /*
  * Do a breadth-first scan of the non-leaf rcu_node structures for the
@@ -215,7 +219,7 @@ struct rcu_node {
  */
 #define rcu_for_each_nonleaf_node_breadth_first(rsp, rnp) \
         for ((rnp) = &(rsp)->node[0]; \
-             (rnp) < (rsp)->level[NUM_RCU_LVLS - 1]; (rnp)++)
+             (rnp) < (rsp)->level[rcu_num_lvls - 1]; (rnp)++)
 
 /*
  * Scan the leaves of the rcu_node hierarchy for the specified rcu_state
@@ -224,8 +228,8 @@ struct rcu_node {
  * It is still a leaf node, even if it is also the root node.
  */
 #define rcu_for_each_leaf_node(rsp, rnp) \
-        for ((rnp) = (rsp)->level[NUM_RCU_LVLS - 1]; \
-             (rnp) < &(rsp)->node[NUM_RCU_NODES]; (rnp)++)
+        for ((rnp) = (rsp)->level[rcu_num_lvls - 1]; \
+             (rnp) < &(rsp)->node[rcu_num_nodes]; (rnp)++)
 
 /* Index values for nxttail array in struct rcu_data. */
 #define RCU_DONE_TAIL           0       /* Also RCU_WAIT head. */
@@ -311,6 +315,9 @@ struct rcu_data {
         unsigned long n_rp_need_fqs;
         unsigned long n_rp_need_nothing;
 
+        /* 6) _rcu_barrier() callback. */
+        struct rcu_head barrier_head;
+
         int cpu;
         struct rcu_state *rsp;
 };
@@ -357,10 +364,12 @@ do {									\
  */
 struct rcu_state {
         struct rcu_node node[NUM_RCU_NODES];    /* Hierarchy. */
-        struct rcu_node *level[NUM_RCU_LVLS];   /* Hierarchy levels. */
+        struct rcu_node *level[RCU_NUM_LVLS];   /* Hierarchy levels. */
         u32 levelcnt[MAX_RCU_LVLS + 1];         /* # nodes in each level. */
-        u8 levelspread[NUM_RCU_LVLS];           /* kids/node in each level. */
+        u8 levelspread[RCU_NUM_LVLS];           /* kids/node in each level. */
         struct rcu_data __percpu *rda;          /* pointer of percu rcu_data. */
+        void (*call)(struct rcu_head *head,     /* call_rcu() flavor. */
+                     void (*func)(struct rcu_head *head));
 
         /* The following fields are guarded by the root rcu_node's lock. */
 
@@ -392,6 +401,11 @@ struct rcu_state {
         struct task_struct *rcu_barrier_in_progress;
                                                 /* Task doing rcu_barrier(), */
                                                 /*  or NULL if no barrier. */
+        struct mutex barrier_mutex;             /* Guards barrier fields. */
+        atomic_t barrier_cpu_count;             /* # CPUs waiting on. */
+        struct completion barrier_completion;   /* Wake at barrier end. */
+        unsigned long n_barrier_done;           /* ++ at start and end of */
+                                                /*  _rcu_barrier(). */
         raw_spinlock_t fqslock;                 /* Only one task forcing */
                                                 /*  quiescent states. */
         unsigned long jiffies_force_qs;         /* Time at which to invoke */
@@ -409,8 +423,13 @@ struct rcu_state {
         unsigned long gp_max;                   /* Maximum GP duration in */
                                                 /*  jiffies. */
         char *name;                             /* Name of structure. */
+        struct list_head flavors;               /* List of RCU flavors. */
 };
 
+extern struct list_head rcu_struct_flavors;
+#define for_each_rcu_flavor(rsp) \
+        list_for_each_entry((rsp), &rcu_struct_flavors, flavors)
+
 /* Return values for rcu_preempt_offline_tasks(). */
 
 #define RCU_OFL_TASKS_NORM_GP   0x1             /* Tasks blocking normal */
@@ -453,25 +472,18 @@ static void rcu_stop_cpu_kthread(int cpu);
 #endif /* #ifdef CONFIG_HOTPLUG_CPU */
 static void rcu_print_detail_task_stall(struct rcu_state *rsp);
 static int rcu_print_task_stall(struct rcu_node *rnp);
-static void rcu_preempt_stall_reset(void);
 static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp);
 #ifdef CONFIG_HOTPLUG_CPU
 static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
                                      struct rcu_node *rnp,
                                      struct rcu_data *rdp);
 #endif /* #ifdef CONFIG_HOTPLUG_CPU */
-static void rcu_preempt_cleanup_dead_cpu(int cpu);
 static void rcu_preempt_check_callbacks(int cpu);
-static void rcu_preempt_process_callbacks(void);
 void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
 #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU)
 static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
                                bool wake);
 #endif /* #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU) */
-static int rcu_preempt_pending(int cpu);
-static int rcu_preempt_cpu_has_callbacks(int cpu);
-static void __cpuinit rcu_preempt_init_percpu_data(int cpu);
-static void rcu_preempt_cleanup_dying_cpu(void);
 static void __init __rcu_init_preempt(void);
 static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags);
 static void rcu_preempt_boost_start_gp(struct rcu_node *rnp);
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 3e4899459f3d..7f3244c0df01 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -68,17 +68,21 @@ static void __init rcu_bootup_announce_oddness(void)
         printk(KERN_INFO "\tAdditional per-CPU info printed with stalls.\n");
 #endif
 #if NUM_RCU_LVL_4 != 0
-        printk(KERN_INFO "\tExperimental four-level hierarchy is enabled.\n");
+        printk(KERN_INFO "\tFour-level hierarchy is enabled.\n");
 #endif
+        if (rcu_fanout_leaf != CONFIG_RCU_FANOUT_LEAF)
+                printk(KERN_INFO "\tExperimental boot-time adjustment of leaf fanout to %d.\n", rcu_fanout_leaf);
+        if (nr_cpu_ids != NR_CPUS)
+                printk(KERN_INFO "\tRCU restricting CPUs from NR_CPUS=%d to nr_cpu_ids=%d.\n", NR_CPUS, nr_cpu_ids);
 }
 
 #ifdef CONFIG_TREE_PREEMPT_RCU
 
-struct rcu_state rcu_preempt_state = RCU_STATE_INITIALIZER(rcu_preempt);
+struct rcu_state rcu_preempt_state =
+        RCU_STATE_INITIALIZER(rcu_preempt, call_rcu);
 DEFINE_PER_CPU(struct rcu_data, rcu_preempt_data);
 static struct rcu_state *rcu_state = &rcu_preempt_state;
 
-static void rcu_read_unlock_special(struct task_struct *t);
 static int rcu_preempted_readers_exp(struct rcu_node *rnp);
 
 /*
@@ -233,18 +237,6 @@ static void rcu_preempt_note_context_switch(int cpu)
 }
 
 /*
- * Tree-preemptible RCU implementation for rcu_read_lock().
- * Just increment ->rcu_read_lock_nesting, shared state will be updated
- * if we block.
- */
-void __rcu_read_lock(void)
-{
-        current->rcu_read_lock_nesting++;
-        barrier();  /* needed if we ever invoke rcu_read_lock in rcutree.c */
-}
-EXPORT_SYMBOL_GPL(__rcu_read_lock);
-
-/*
  * Check for preempted RCU readers blocking the current grace period
  * for the specified rcu_node structure.  If the caller needs a reliable
  * answer, it must hold the rcu_node's ->lock.
@@ -310,7 +302,7 @@ static struct list_head *rcu_next_node_entry(struct task_struct *t,
  * notify RCU core processing or task having blocked during the RCU
  * read-side critical section.
  */
-static noinline void rcu_read_unlock_special(struct task_struct *t)
+void rcu_read_unlock_special(struct task_struct *t)
 {
         int empty;
         int empty_exp;
@@ -398,8 +390,9 @@ static noinline void rcu_read_unlock_special(struct task_struct *t)
                                                          rnp->grphi,
                                                          !!rnp->gp_tasks);
                         rcu_report_unblock_qs_rnp(rnp, flags);
-                } else
+                } else {
                         raw_spin_unlock_irqrestore(&rnp->lock, flags);
+                }
 
 #ifdef CONFIG_RCU_BOOST
                 /* Unboost if we were boosted. */
@@ -418,38 +411,6 @@ static noinline void rcu_read_unlock_special(struct task_struct *t)
         }
 }
 
-/*
- * Tree-preemptible RCU implementation for rcu_read_unlock().
- * Decrement ->rcu_read_lock_nesting.  If the result is zero (outermost
- * rcu_read_unlock()) and ->rcu_read_unlock_special is non-zero, then
- * invoke rcu_read_unlock_special() to clean up after a context switch
- * in an RCU read-side critical section and other special cases.
- */
-void __rcu_read_unlock(void)
-{
-        struct task_struct *t = current;
-
-        if (t->rcu_read_lock_nesting != 1)
-                --t->rcu_read_lock_nesting;
-        else {
-                barrier();  /* critical section before exit code. */
-                t->rcu_read_lock_nesting = INT_MIN;
-                barrier();  /* assign before ->rcu_read_unlock_special load */
-                if (unlikely(ACCESS_ONCE(t->rcu_read_unlock_special)))
-                        rcu_read_unlock_special(t);
-                barrier();  /* ->rcu_read_unlock_special load before assign */
-                t->rcu_read_lock_nesting = 0;
-        }
-#ifdef CONFIG_PROVE_LOCKING
-        {
-                int rrln = ACCESS_ONCE(t->rcu_read_lock_nesting);
-
-                WARN_ON_ONCE(rrln < 0 && rrln > INT_MIN / 2);
-        }
-#endif /* #ifdef CONFIG_PROVE_LOCKING */
-}
-EXPORT_SYMBOL_GPL(__rcu_read_unlock);
-
 #ifdef CONFIG_RCU_CPU_STALL_VERBOSE
 
 /*
@@ -540,16 +501,6 @@ static int rcu_print_task_stall(struct rcu_node *rnp)
 }
 
 /*
- * Suppress preemptible RCU's CPU stall warnings by pushing the
- * time of the next stall-warning message comfortably far into the
- * future.
- */
-static void rcu_preempt_stall_reset(void)
-{
-        rcu_preempt_state.jiffies_stall = jiffies + ULONG_MAX / 2;
-}
-
-/*
  * Check that the list of blocked tasks for the newly completed grace
  * period is in fact empty.  It is a serious bug to complete a grace
  * period that still has RCU readers blocked!  This function must be
@@ -650,14 +601,6 @@ static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
 #endif /* #ifdef CONFIG_HOTPLUG_CPU */
 
 /*
- * Do CPU-offline processing for preemptible RCU.
- */
-static void rcu_preempt_cleanup_dead_cpu(int cpu)
-{
-        rcu_cleanup_dead_cpu(cpu, &rcu_preempt_state);
-}
-
-/*
  * Check for a quiescent state from the current CPU.  When a task blocks,
  * the task is recorded in the corresponding CPU's rcu_node structure,
  * which is checked elsewhere.
@@ -677,15 +620,6 @@ static void rcu_preempt_check_callbacks(int cpu)
                 t->rcu_read_unlock_special |= RCU_READ_UNLOCK_NEED_QS;
 }
 
-/*
- * Process callbacks for preemptible RCU.
- */
-static void rcu_preempt_process_callbacks(void)
-{
-        __rcu_process_callbacks(&rcu_preempt_state,
-                                &__get_cpu_var(rcu_preempt_data));
-}
-
 #ifdef CONFIG_RCU_BOOST
 
 static void rcu_preempt_do_callbacks(void)
@@ -824,9 +758,9 @@ sync_rcu_preempt_exp_init(struct rcu_state *rsp, struct rcu_node *rnp)
         int must_wait = 0;
 
         raw_spin_lock_irqsave(&rnp->lock, flags);
-        if (list_empty(&rnp->blkd_tasks))
+        if (list_empty(&rnp->blkd_tasks)) {
                 raw_spin_unlock_irqrestore(&rnp->lock, flags);
-        else {
+        } else {
                 rnp->exp_tasks = rnp->blkd_tasks.next;
                 rcu_initiate_boost(rnp, flags);  /* releases rnp->lock */
                 must_wait = 1;
@@ -870,9 +804,9 @@ void synchronize_rcu_expedited(void)
          * expedited grace period for us, just leave.
          */
         while (!mutex_trylock(&sync_rcu_preempt_exp_mutex)) {
-                if (trycount++ < 10)
+                if (trycount++ < 10) {
                         udelay(trycount * num_online_cpus());
-                else {
+                } else {
                         synchronize_rcu();
                         return;
                 }
@@ -917,51 +851,16 @@ mb_ret:
 }
 EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
 
-/*
- * Check to see if there is any immediate preemptible-RCU-related work
- * to be done.
- */
-static int rcu_preempt_pending(int cpu)
-{
-        return __rcu_pending(&rcu_preempt_state,
-                             &per_cpu(rcu_preempt_data, cpu));
-}
-
-/*
- * Does preemptible RCU have callbacks on this CPU?
- */
-static int rcu_preempt_cpu_has_callbacks(int cpu)
-{
-        return !!per_cpu(rcu_preempt_data, cpu).nxtlist;
-}
-
 /**
  * rcu_barrier - Wait until all in-flight call_rcu() callbacks complete.
  */
 void rcu_barrier(void)
 {
-        _rcu_barrier(&rcu_preempt_state, call_rcu);
+        _rcu_barrier(&rcu_preempt_state);
 }
 EXPORT_SYMBOL_GPL(rcu_barrier);
 
 /*
- * Initialize preemptible RCU's per-CPU data.
- */
-static void __cpuinit rcu_preempt_init_percpu_data(int cpu)
-{
-        rcu_init_percpu_data(cpu, &rcu_preempt_state, 1);
-}
-
-/*
- * Move preemptible RCU's callbacks from dying CPU to other online CPU
- * and record a quiescent state.
- */
-static void rcu_preempt_cleanup_dying_cpu(void)
-{
-        rcu_cleanup_dying_cpu(&rcu_preempt_state);
-}
-
-/*
  * Initialize preemptible RCU's state structures.
  */
 static void __init __rcu_init_preempt(void)
@@ -1046,14 +945,6 @@ static int rcu_print_task_stall(struct rcu_node *rnp)
 }
 
 /*
- * Because preemptible RCU does not exist, there is no need to suppress
- * its CPU stall warnings.
- */
-static void rcu_preempt_stall_reset(void)
-{
-}
-
-/*
  * Because there is no preemptible RCU, there can be no readers blocked,
  * so there is no need to check for blocked tasks.  So check only for
  * bogus qsmask values.
@@ -1081,14 +972,6 @@ static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
 #endif /* #ifdef CONFIG_HOTPLUG_CPU */
 
 /*
- * Because preemptible RCU does not exist, it never needs CPU-offline
- * processing.
- */
-static void rcu_preempt_cleanup_dead_cpu(int cpu)
-{
-}
-
-/*
  * Because preemptible RCU does not exist, it never has any callbacks
  * to check.
  */
@@ -1097,14 +980,6 @@ static void rcu_preempt_check_callbacks(int cpu)
 }
 
 /*
- * Because preemptible RCU does not exist, it never has any callbacks
- * to process.
- */
-static void rcu_preempt_process_callbacks(void)
-{
-}
-
-/*
  * Queue an RCU callback for lazy invocation after a grace period.
  * This will likely be later named something like "call_rcu_lazy()",
  * but this change will require some way of tagging the lazy RCU
@@ -1145,22 +1020,6 @@ static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
 #endif /* #ifdef CONFIG_HOTPLUG_CPU */
 
 /*
- * Because preemptible RCU does not exist, it never has any work to do.
- */
-static int rcu_preempt_pending(int cpu)
-{
-        return 0;
-}
-
-/*
- * Because preemptible RCU does not exist, it never has callbacks
- */
-static int rcu_preempt_cpu_has_callbacks(int cpu)
-{
-        return 0;
-}
-
-/*
  * Because preemptible RCU does not exist, rcu_barrier() is just
  * another name for rcu_barrier_sched().
  */
@@ -1171,21 +1030,6 @@ void rcu_barrier(void)
 EXPORT_SYMBOL_GPL(rcu_barrier);
 
 /*
- * Because preemptible RCU does not exist, there is no per-CPU
- * data to initialize.
- */
-static void __cpuinit rcu_preempt_init_percpu_data(int cpu)
-{
-}
-
-/*
- * Because there is no preemptible RCU, there is no cleanup to do.
- */
-static void rcu_preempt_cleanup_dying_cpu(void)
-{
-}
-
-/*
  * Because preemptible RCU does not exist, it need not be initialized.
  */
 static void __init __rcu_init_preempt(void)
@@ -1968,9 +1812,11 @@ static void rcu_idle_count_callbacks_posted(void)
  */
 #define RCU_IDLE_FLUSHES 5              /* Number of dyntick-idle tries. */
 #define RCU_IDLE_OPT_FLUSHES 3          /* Optional dyntick-idle tries. */
-#define RCU_IDLE_GP_DELAY 6             /* Roughly one grace period. */
+#define RCU_IDLE_GP_DELAY 4             /* Roughly one grace period. */
 #define RCU_IDLE_LAZY_GP_DELAY (6 * HZ) /* Roughly six seconds. */
 
+extern int tick_nohz_enabled;
+
 /*
  * Does the specified flavor of RCU have non-lazy callbacks pending on
  * the specified CPU?  Both RCU flavor and CPU are specified by the
@@ -2047,10 +1893,13 @@ int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies)
                 return 1;
         }
         /* Set up for the possibility that RCU will post a timer. */
-        if (rcu_cpu_has_nonlazy_callbacks(cpu))
-                *delta_jiffies = RCU_IDLE_GP_DELAY;
-        else
-                *delta_jiffies = RCU_IDLE_LAZY_GP_DELAY;
+        if (rcu_cpu_has_nonlazy_callbacks(cpu)) {
+                *delta_jiffies = round_up(RCU_IDLE_GP_DELAY + jiffies,
+                                          RCU_IDLE_GP_DELAY) - jiffies;
+        } else {
+                *delta_jiffies = jiffies + RCU_IDLE_LAZY_GP_DELAY;
+                *delta_jiffies = round_jiffies(*delta_jiffies) - jiffies;
+        }
         return 0;
 }
 
@@ -2109,6 +1958,7 @@ static void rcu_cleanup_after_idle(int cpu)
 
         del_timer(&rdtp->idle_gp_timer);
         trace_rcu_prep_idle("Cleanup after idle");
+        rdtp->tick_nohz_enabled_snap = ACCESS_ONCE(tick_nohz_enabled);
 }
 
 /*
@@ -2134,6 +1984,18 @@ static void rcu_prepare_for_idle(int cpu)
 {
         struct timer_list *tp;
         struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
+        int tne;
+
+        /* Handle nohz enablement switches conservatively. */
+        tne = ACCESS_ONCE(tick_nohz_enabled);
+        if (tne != rdtp->tick_nohz_enabled_snap) {
+                if (rcu_cpu_has_callbacks(cpu))
+                        invoke_rcu_core(); /* force nohz to see update. */
+                rdtp->tick_nohz_enabled_snap = tne;
+                return;
+        }
+        if (!tne)
+                return;
 
         /*
          * If this is an idle re-entry, for example, due to use of
@@ -2187,10 +2049,11 @@ static void rcu_prepare_for_idle(int cpu)
                 if (rcu_cpu_has_nonlazy_callbacks(cpu)) {
                         trace_rcu_prep_idle("Dyntick with callbacks");
                         rdtp->idle_gp_timer_expires =
-                                           jiffies + RCU_IDLE_GP_DELAY;
+                                round_up(jiffies + RCU_IDLE_GP_DELAY,
+                                         RCU_IDLE_GP_DELAY);
                 } else {
                         rdtp->idle_gp_timer_expires =
-                                           jiffies + RCU_IDLE_LAZY_GP_DELAY;
+                                round_jiffies(jiffies + RCU_IDLE_LAZY_GP_DELAY);
                         trace_rcu_prep_idle("Dyntick with lazy callbacks");
                 }
                 tp = &rdtp->idle_gp_timer;
@@ -2231,8 +2094,9 @@ static void rcu_prepare_for_idle(int cpu)
         if (rcu_cpu_has_callbacks(cpu)) {
                 trace_rcu_prep_idle("More callbacks");
                 invoke_rcu_core();
-        } else
+        } else {
                 trace_rcu_prep_idle("Callbacks drained");
+        }
 }
 
 /*
@@ -2269,6 +2133,7 @@ static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
 
 static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
 {
+        *cp = '\0';
 }
 
 #endif /* #else #ifdef CONFIG_RCU_FAST_NO_HZ */
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index d4bc16ddd1d4..abffb486e94e 100644
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -46,6 +46,31 @@
 #define RCU_TREE_NONCORE
 #include "rcutree.h"
 
+static int show_rcubarrier(struct seq_file *m, void *unused)
+{
+        struct rcu_state *rsp;
+
+        for_each_rcu_flavor(rsp)
+                seq_printf(m, "%s: %c bcc: %d nbd: %lu\n",
+                           rsp->name, rsp->rcu_barrier_in_progress ? 'B' : '.',
+                           atomic_read(&rsp->barrier_cpu_count),
+                           rsp->n_barrier_done);
+        return 0;
+}
+
+static int rcubarrier_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, show_rcubarrier, NULL);
+}
+
+static const struct file_operations rcubarrier_fops = {
+        .owner = THIS_MODULE,
+        .open = rcubarrier_open,
+        .read = seq_read,
+        .llseek = seq_lseek,
+        .release = single_release,
+};
+
 #ifdef CONFIG_RCU_BOOST
 
 static char convert_kthread_status(unsigned int kthread_status)
@@ -95,24 +120,16 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
                    rdp->n_cbs_invoked, rdp->n_cbs_orphaned, rdp->n_cbs_adopted);
 }
 
-#define PRINT_RCU_DATA(name, func, m) \
-        do { \
-                int _p_r_d_i; \
-                \
-                for_each_possible_cpu(_p_r_d_i) \
-                        func(m, &per_cpu(name, _p_r_d_i)); \
-        } while (0)
-
 static int show_rcudata(struct seq_file *m, void *unused)
 {
-#ifdef CONFIG_TREE_PREEMPT_RCU
-        seq_puts(m, "rcu_preempt:\n");
-        PRINT_RCU_DATA(rcu_preempt_data, print_one_rcu_data, m);
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
-        seq_puts(m, "rcu_sched:\n");
-        PRINT_RCU_DATA(rcu_sched_data, print_one_rcu_data, m);
-        seq_puts(m, "rcu_bh:\n");
-        PRINT_RCU_DATA(rcu_bh_data, print_one_rcu_data, m);
+        int cpu;
+        struct rcu_state *rsp;
+
+        for_each_rcu_flavor(rsp) {
+                seq_printf(m, "%s:\n", rsp->name);
+                for_each_possible_cpu(cpu)
+                        print_one_rcu_data(m, per_cpu_ptr(rsp->rda, cpu));
+        }
         return 0;
 }
 
@@ -166,6 +183,9 @@ static void print_one_rcu_data_csv(struct seq_file *m, struct rcu_data *rdp)
 
 static int show_rcudata_csv(struct seq_file *m, void *unused)
 {
+        int cpu;
+        struct rcu_state *rsp;
+
         seq_puts(m, "\"CPU\",\"Online?\",\"c\",\"g\",\"pq\",\"pgp\",\"pq\",");
         seq_puts(m, "\"dt\",\"dt nesting\",\"dt NMI nesting\",\"df\",");
         seq_puts(m, "\"of\",\"qll\",\"ql\",\"qs\"");
@@ -173,14 +193,11 @@ static int show_rcudata_csv(struct seq_file *m, void *unused)
         seq_puts(m, "\"kt\",\"ktl\"");
 #endif /* #ifdef CONFIG_RCU_BOOST */
         seq_puts(m, ",\"b\",\"ci\",\"co\",\"ca\"\n");
-#ifdef CONFIG_TREE_PREEMPT_RCU
-        seq_puts(m, "\"rcu_preempt:\"\n");
-        PRINT_RCU_DATA(rcu_preempt_data, print_one_rcu_data_csv, m);
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
-        seq_puts(m, "\"rcu_sched:\"\n");
-        PRINT_RCU_DATA(rcu_sched_data, print_one_rcu_data_csv, m);
-        seq_puts(m, "\"rcu_bh:\"\n");
-        PRINT_RCU_DATA(rcu_bh_data, print_one_rcu_data_csv, m);
+        for_each_rcu_flavor(rsp) {
+                seq_printf(m, "\"%s:\"\n", rsp->name);
+                for_each_possible_cpu(cpu)
+                        print_one_rcu_data_csv(m, per_cpu_ptr(rsp->rda, cpu));
+        }
         return 0;
 }
 
@@ -201,8 +218,7 @@ static const struct file_operations rcudata_csv_fops = {
 
 static void print_one_rcu_node_boost(struct seq_file *m, struct rcu_node *rnp)
 {
-        seq_printf(m,  "%d:%d tasks=%c%c%c%c kt=%c ntb=%lu neb=%lu nnb=%lu "
-                   "j=%04x bt=%04x\n",
+        seq_printf(m, "%d:%d tasks=%c%c%c%c kt=%c ntb=%lu neb=%lu nnb=%lu ",
                    rnp->grplo, rnp->grphi,
                    "T."[list_empty(&rnp->blkd_tasks)],
                    "N."[!rnp->gp_tasks],
@@ -210,11 +226,11 @@ static void print_one_rcu_node_boost(struct seq_file *m, struct rcu_node *rnp)
                    "B."[!rnp->boost_tasks],
                    convert_kthread_status(rnp->boost_kthread_status),
                    rnp->n_tasks_boosted, rnp->n_exp_boosts,
-                   rnp->n_normal_boosts,
+                   rnp->n_normal_boosts);
+        seq_printf(m, "j=%04x bt=%04x\n",
                    (int)(jiffies & 0xffff),
                    (int)(rnp->boost_time & 0xffff));
-        seq_printf(m, "%s: nt=%lu egt=%lu bt=%lu nb=%lu ny=%lu nos=%lu\n",
-                   "     balk",
+        seq_printf(m, "    balk: nt=%lu egt=%lu bt=%lu nb=%lu ny=%lu nos=%lu\n",
                    rnp->n_balk_blkd_tasks,
                    rnp->n_balk_exp_gp_tasks,
                    rnp->n_balk_boost_tasks,
@@ -270,15 +286,15 @@ static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp)
         struct rcu_node *rnp;
 
         gpnum = rsp->gpnum;
-        seq_printf(m, "c=%lu g=%lu s=%d jfq=%ld j=%x "
-                      "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld/%ld\n",
-                   rsp->completed, gpnum, rsp->fqs_state,
+        seq_printf(m, "%s: c=%lu g=%lu s=%d jfq=%ld j=%x ",
+                   rsp->name, rsp->completed, gpnum, rsp->fqs_state,
                    (long)(rsp->jiffies_force_qs - jiffies),
-                   (int)(jiffies & 0xffff),
+                   (int)(jiffies & 0xffff));
+        seq_printf(m, "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld/%ld\n",
                    rsp->n_force_qs, rsp->n_force_qs_ngp,
                    rsp->n_force_qs - rsp->n_force_qs_ngp,
                    rsp->n_force_qs_lh, rsp->qlen_lazy, rsp->qlen);
-        for (rnp = &rsp->node[0]; rnp - &rsp->node[0] < NUM_RCU_NODES; rnp++) {
+        for (rnp = &rsp->node[0]; rnp - &rsp->node[0] < rcu_num_nodes; rnp++) {
                 if (rnp->level != level) {
                         seq_puts(m, "\n");
                         level = rnp->level;
@@ -295,14 +311,10 @@ static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp)
 
 static int show_rcuhier(struct seq_file *m, void *unused)
 {
-#ifdef CONFIG_TREE_PREEMPT_RCU
-        seq_puts(m, "rcu_preempt:\n");
-        print_one_rcu_state(m, &rcu_preempt_state);
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
-        seq_puts(m, "rcu_sched:\n");
-        print_one_rcu_state(m, &rcu_sched_state);
-        seq_puts(m, "rcu_bh:\n");
-        print_one_rcu_state(m, &rcu_bh_state);
+        struct rcu_state *rsp;
+
+        for_each_rcu_flavor(rsp)
+                print_one_rcu_state(m, rsp);
         return 0;
 }
 
@@ -343,11 +355,10 @@ static void show_one_rcugp(struct seq_file *m, struct rcu_state *rsp)
 
 static int show_rcugp(struct seq_file *m, void *unused)
 {
-#ifdef CONFIG_TREE_PREEMPT_RCU
-        show_one_rcugp(m, &rcu_preempt_state);
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
-        show_one_rcugp(m, &rcu_sched_state);
-        show_one_rcugp(m, &rcu_bh_state);
+        struct rcu_state *rsp;
+
+        for_each_rcu_flavor(rsp)
+                show_one_rcugp(m, rsp);
         return 0;
 }
 
@@ -366,44 +377,36 @@ static const struct file_operations rcugp_fops = {
 
 static void print_one_rcu_pending(struct seq_file *m, struct rcu_data *rdp)
 {
-        seq_printf(m, "%3d%cnp=%ld "
-                   "qsp=%ld rpq=%ld cbr=%ld cng=%ld "
-                   "gpc=%ld gps=%ld nf=%ld nn=%ld\n",
+        seq_printf(m, "%3d%cnp=%ld ",
                    rdp->cpu,
                    cpu_is_offline(rdp->cpu) ? '!' : ' ',
-                   rdp->n_rcu_pending,
+                   rdp->n_rcu_pending);
+        seq_printf(m, "qsp=%ld rpq=%ld cbr=%ld cng=%ld ",
                    rdp->n_rp_qs_pending,
                    rdp->n_rp_report_qs,
                    rdp->n_rp_cb_ready,
-                   rdp->n_rp_cpu_needs_gp,
+                   rdp->n_rp_cpu_needs_gp);
+        seq_printf(m, "gpc=%ld gps=%ld nf=%ld nn=%ld\n",
                    rdp->n_rp_gp_completed,
                    rdp->n_rp_gp_started,
                    rdp->n_rp_need_fqs,
                    rdp->n_rp_need_nothing);
 }
 
-static void print_rcu_pendings(struct seq_file *m, struct rcu_state *rsp)
+static int show_rcu_pending(struct seq_file *m, void *unused)
 {
         int cpu;
         struct rcu_data *rdp;
-
-        for_each_possible_cpu(cpu) {
-                rdp = per_cpu_ptr(rsp->rda, cpu);
-                if (rdp->beenonline)
-                        print_one_rcu_pending(m, rdp);
+        struct rcu_state *rsp;
+
+        for_each_rcu_flavor(rsp) {
+                seq_printf(m, "%s:\n", rsp->name);
+                for_each_possible_cpu(cpu) {
+                        rdp = per_cpu_ptr(rsp->rda, cpu);
+                        if (rdp->beenonline)
+                                print_one_rcu_pending(m, rdp);
+                }
         }
-}
-
-static int show_rcu_pending(struct seq_file *m, void *unused)
-{
-#ifdef CONFIG_TREE_PREEMPT_RCU
-        seq_puts(m, "rcu_preempt:\n");
-        print_rcu_pendings(m, &rcu_preempt_state);
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
-        seq_puts(m, "rcu_sched:\n");
-        print_rcu_pendings(m, &rcu_sched_state);
-        seq_puts(m, "rcu_bh:\n");
-        print_rcu_pendings(m, &rcu_bh_state);
         return 0;
 }
 
@@ -453,6 +456,11 @@ static int __init rcutree_trace_init(void)
         if (!rcudir)
                 goto free_out;
 
+        retval = debugfs_create_file("rcubarrier", 0444, rcudir,
+                                                NULL, &rcubarrier_fops);
+        if (!retval)
+                goto free_out;
+
         retval = debugfs_create_file("rcudata", 0444, rcudir,
                                                 NULL, &rcudata_fops);
         if (!retval)
diff --git a/kernel/smp.c b/kernel/smp.c
index d0ae5b24875e..29dd40a9f2f4 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -581,26 +581,6 @@ int smp_call_function(smp_call_func_t func, void *info, int wait)
         return 0;
 }
 EXPORT_SYMBOL(smp_call_function);
-
-void ipi_call_lock(void)
-{
-        raw_spin_lock(&call_function.lock);
-}
-
-void ipi_call_unlock(void)
-{
-        raw_spin_unlock(&call_function.lock);
-}
-
-void ipi_call_lock_irq(void)
-{
-        raw_spin_lock_irq(&call_function.lock);
-}
-
-void ipi_call_unlock_irq(void)
-{
-        raw_spin_unlock_irq(&call_function.lock);
-}
 #endif /* USE_GENERIC_SMP_HELPERS */
 
 /* Setup configured maximum number of CPUs to activate */
diff --git a/kernel/smpboot.h b/kernel/smpboot.h
index 80c0acfb8472..6ef9433e1c70 100644
--- a/kernel/smpboot.h
+++ b/kernel/smpboot.h
@@ -3,8 +3,6 @@
 
 struct task_struct;
 
-int smpboot_prepare(unsigned int cpu);
-
 #ifdef CONFIG_GENERIC_SMP_IDLE_THREAD
 struct task_struct *idle_thread_get(unsigned int cpu);
 void idle_thread_set_boot_cpu(void);
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 41be02250e08..024540f97f74 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -105,7 +105,7 @@ static ktime_t tick_init_jiffy_update(void)
 /*
  * NO HZ enabled ?
  */
-static int tick_nohz_enabled __read_mostly  = 1;
+int tick_nohz_enabled __read_mostly  = 1;
 
 /*
  * Enable / Disable tickless mode
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 8f2aba1246f2..cf364db5589f 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -745,6 +745,7 @@ static void timekeeping_resume(void)
         timekeeper.clock->cycle_last = timekeeper.clock->read(timekeeper.clock);
         timekeeper.ntp_error = 0;
         timekeeping_suspended = 0;
+        timekeeping_update(&timekeeper, false);
         write_sequnlock_irqrestore(&timekeeper.lock, flags);
 
         touch_softlockup_watchdog();
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index a008663d86c8..b4f20fba09fc 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -312,7 +312,7 @@ static int remove_ftrace_list_ops(struct ftrace_ops **list,
 
 static int __register_ftrace_function(struct ftrace_ops *ops)
 {
-        if (ftrace_disabled)
+        if (unlikely(ftrace_disabled))
                 return -ENODEV;
 
         if (FTRACE_WARN_ON(ops == &global_ops))
@@ -4299,16 +4299,12 @@ int register_ftrace_function(struct ftrace_ops *ops)
 
         mutex_lock(&ftrace_lock);
 
-        if (unlikely(ftrace_disabled))
-                goto out_unlock;
-
         ret = __register_ftrace_function(ops);
         if (!ret)
                 ret = ftrace_startup(ops, 0);
 
-
- out_unlock:
         mutex_unlock(&ftrace_lock);
+
         return ret;
 }
 EXPORT_SYMBOL_GPL(register_ftrace_function);
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index f765465bffe4..49491fa7daa2 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -3239,6 +3239,10 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
         if (cpu_buffer->commit_page == cpu_buffer->reader_page)
                 goto out;
 
+        /* Don't bother swapping if the ring buffer is empty */
+        if (rb_num_of_entries(cpu_buffer) == 0)
+                goto out;
+
         /*
          * Reset the reader page to size zero.
          */
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index a7fa0702be1c..a120f98c4112 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -830,6 +830,8 @@ int register_tracer(struct tracer *type)
                 current_trace = saved_tracer;
                 if (ret) {
                         printk(KERN_CONT "FAILED!\n");
+                        /* Add the warning after printing 'FAILED' */
+                        WARN_ON(1);
                         goto out;
                 }
                 /* Only reset on passing, to avoid touching corrupted buffers */
@@ -1708,9 +1710,11 @@ EXPORT_SYMBOL_GPL(trace_vprintk);
 
 static void trace_iterator_increment(struct trace_iterator *iter)
 {
+        struct ring_buffer_iter *buf_iter = trace_buffer_iter(iter, iter->cpu);
+
         iter->idx++;
-        if (iter->buffer_iter[iter->cpu])
-                ring_buffer_read(iter->buffer_iter[iter->cpu], NULL);
+        if (buf_iter)
+                ring_buffer_read(buf_iter, NULL);
 }
 
 static struct trace_entry *
@@ -1718,7 +1722,7 @@ peek_next_entry(struct trace_iterator *iter, int cpu, u64 *ts,
                 unsigned long *lost_events)
 {
         struct ring_buffer_event *event;
-        struct ring_buffer_iter *buf_iter = iter->buffer_iter[cpu];
+        struct ring_buffer_iter *buf_iter = trace_buffer_iter(iter, cpu);
 
         if (buf_iter)
                 event = ring_buffer_iter_peek(buf_iter, ts);
@@ -1856,10 +1860,10 @@ void tracing_iter_reset(struct trace_iterator *iter, int cpu)
 
         tr->data[cpu]->skipped_entries = 0;
 
-        if (!iter->buffer_iter[cpu])
+        buf_iter = trace_buffer_iter(iter, cpu);
+        if (!buf_iter)
                 return;
 
-        buf_iter = iter->buffer_iter[cpu];
         ring_buffer_iter_reset(buf_iter);
 
         /*
@@ -2205,13 +2209,15 @@ static enum print_line_t print_bin_fmt(struct trace_iterator *iter)
 
 int trace_empty(struct trace_iterator *iter)
 {
+        struct ring_buffer_iter *buf_iter;
         int cpu;
 
         /* If we are looking at one CPU buffer, only check that one */
         if (iter->cpu_file != TRACE_PIPE_ALL_CPU) {
                 cpu = iter->cpu_file;
-                if (iter->buffer_iter[cpu]) {
-                        if (!ring_buffer_iter_empty(iter->buffer_iter[cpu]))
+                buf_iter = trace_buffer_iter(iter, cpu);
+                if (buf_iter) {
+                        if (!ring_buffer_iter_empty(buf_iter))
                                 return 0;
                 } else {
                         if (!ring_buffer_empty_cpu(iter->tr->buffer, cpu))
@@ -2221,8 +2227,9 @@ int trace_empty(struct trace_iterator *iter)
         }
 
         for_each_tracing_cpu(cpu) {
-                if (iter->buffer_iter[cpu]) {
-                        if (!ring_buffer_iter_empty(iter->buffer_iter[cpu]))
+                buf_iter = trace_buffer_iter(iter, cpu);
+                if (buf_iter) {
+                        if (!ring_buffer_iter_empty(buf_iter))
                                 return 0;
                 } else {
                         if (!ring_buffer_empty_cpu(iter->tr->buffer, cpu))
@@ -2381,6 +2388,11 @@ __tracing_open(struct inode *inode, struct file *file)
         if (!iter)
                 return ERR_PTR(-ENOMEM);
 
+        iter->buffer_iter = kzalloc(sizeof(*iter->buffer_iter) * num_possible_cpus(),
+                                    GFP_KERNEL);
+        if (!iter->buffer_iter)
+                goto release;
+
         /*
          * We make a copy of the current tracer to avoid concurrent
          * changes on it while we are reading.
@@ -2441,6 +2453,8 @@ __tracing_open(struct inode *inode, struct file *file)
  fail:
         mutex_unlock(&trace_types_lock);
         kfree(iter->trace);
+        kfree(iter->buffer_iter);
+release:
         seq_release_private(inode, file);
         return ERR_PTR(-ENOMEM);
 }
@@ -2481,6 +2495,7 @@ static int tracing_release(struct inode *inode, struct file *file)
         mutex_destroy(&iter->mutex);
         free_cpumask_var(iter->started);
         kfree(iter->trace);
+        kfree(iter->buffer_iter);
         seq_release_private(inode, file);
         return 0;
 }
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 5aec220d2de0..55e1f7f0db12 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -317,6 +317,14 @@ struct tracer {
 
 #define TRACE_PIPE_ALL_CPU      -1
 
+static inline struct ring_buffer_iter *
+trace_buffer_iter(struct trace_iterator *iter, int cpu)
+{
+        if (iter->buffer_iter && iter->buffer_iter[cpu])
+                return iter->buffer_iter[cpu];
+        return NULL;
+}
+
 int tracer_init(struct tracer *t, struct trace_array *tr);
 int tracing_is_enabled(void);
 void trace_wake_up(void);
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index a7d2a4c653d8..ce27c8ba8d31 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -538,7 +538,7 @@ get_return_for_leaf(struct trace_iterator *iter,
                 next = &data->ret;
         } else {
 
-                ring_iter = iter->buffer_iter[iter->cpu];
+                ring_iter = trace_buffer_iter(iter, iter->cpu);
 
                 /* First peek to compare current entry and the next one */
                 if (ring_iter)
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index df611a0e76c5..123b189c732c 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -1325,4 +1325,4 @@ __init static int init_events(void)
 
         return 0;
 }
-device_initcall(init_events);
+early_initcall(init_events);
diff --git a/lib/list_debug.c b/lib/list_debug.c
index 23a5e031cd8b..c24c2f7e296f 100644
--- a/lib/list_debug.c
+++ b/lib/list_debug.c
@@ -87,12 +87,10 @@ void __list_add_rcu(struct list_head *new,
                     struct list_head *prev, struct list_head *next)
 {
         WARN(next->prev != prev,
-                "list_add_rcu corruption. next->prev should be "
-                "prev (%p), but was %p. (next=%p).\n",
+                "list_add_rcu corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
                 prev, next->prev, next);
         WARN(prev->next != next,
-                "list_add_rcu corruption. prev->next should be "
-                "next (%p), but was %p. (prev=%p).\n",
+                "list_add_rcu corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
                 next, prev->next, prev);
         new->next = next;
         new->prev = prev;
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 73096630cb35..bcb63ac48cc5 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -710,6 +710,10 @@ again:
         if (ptr)
                 return ptr;
 
+        /* do not panic in alloc_bootmem_bdata() */
+        if (limit && goal + size > limit)
+                limit = 0;
+
         ptr = alloc_bootmem_bdata(pgdat->bdata, size, align, goal, limit);
         if (ptr)
                 return ptr;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 44030096da63..4a4f9219683f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5635,7 +5635,12 @@ static struct page *
 __alloc_contig_migrate_alloc(struct page *page, unsigned long private,
                              int **resultp)
 {
-        return alloc_page(GFP_HIGHUSER_MOVABLE);
+        gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE;
+
+        if (PageHighMem(page))
+                gfp_mask |= __GFP_HIGHMEM;
+
+        return alloc_page(gfp_mask);
 }
 
 /* [start, end) must belong to a single zone. */
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 661576324c7f..66e431060c05 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2688,7 +2688,10 @@ static void kswapd_try_to_sleep(pg_data_t *pgdat, int order, int classzone_idx)
                  * them before going back to sleep.
                  */
                 set_pgdat_percpu_threshold(pgdat, calculate_normal_threshold);
-                schedule();
+
+                if (!kthread_should_stop())
+                        schedule();
+
                 set_pgdat_percpu_threshold(pgdat, calculate_pressure_threshold);
         } else {
                 if (remaining)
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 6089f0cf23b4..9096bcb08132 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -403,6 +403,9 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
                 break;
 
         case NETDEV_DOWN:
+                if (dev->features & NETIF_F_HW_VLAN_FILTER)
+                        vlan_vid_del(dev, 0);
+
                 /* Put all VLANs for this dev in the down state too.  */
                 for (i = 0; i < VLAN_N_VID; i++) {
                         vlandev = vlan_group_get_device(grp, i);
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 051f7abae66d..779095ded689 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -842,6 +842,7 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol,
                 case AX25_P_NETROM:
                         if (ax25_protocol_is_registered(AX25_P_NETROM))
                                 return -ESOCKTNOSUPPORT;
+                        break;
 #endif
 #ifdef CONFIG_ROSE_MODULE
                 case AX25_P_ROSE:
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 8bf97515a77d..c5863f499133 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1351,6 +1351,7 @@ void bla_free(struct bat_priv *bat_priv)
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the frame to be checked
  * @vid: the VLAN ID of the frame
+ * @is_bcast: the packet came in a broadcast packet type.
  *
  * bla_rx avoidance checks if:
  *  * we have to race for a claim
@@ -1361,7 +1362,8 @@ void bla_free(struct bat_priv *bat_priv)
  * process the skb.
  *
  */
-int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
+int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid,
+           bool is_bcast)
 {
         struct ethhdr *ethhdr;
         struct claim search_claim, *claim = NULL;
@@ -1380,7 +1382,7 @@ int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
 
         if (unlikely(atomic_read(&bat_priv->bla_num_requests)))
                 /* don't allow broadcasts while requests are in flight */
-                if (is_multicast_ether_addr(ethhdr->h_dest))
+                if (is_multicast_ether_addr(ethhdr->h_dest) && is_bcast)
                         goto handled;
 
         memcpy(search_claim.addr, ethhdr->h_source, ETH_ALEN);
@@ -1406,8 +1408,13 @@ int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid)
         }
 
         /* if it is a broadcast ... */
-        if (is_multicast_ether_addr(ethhdr->h_dest)) {
-                /* ... drop it. the responsible gateway is in charge. */
+        if (is_multicast_ether_addr(ethhdr->h_dest) && is_bcast) {
+                /* ... drop it. the responsible gateway is in charge.
+                 *
+                 * We need to check is_bcast because with the gateway
+                 * feature, broadcasts (like DHCP requests) may be sent
+                 * using a unicast packet type.
+                 */
                 goto handled;
         } else {
                 /* seems the client considers us as its best gateway.
diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h
index e39f93acc28f..dc5227b398d4 100644
--- a/net/batman-adv/bridge_loop_avoidance.h
+++ b/net/batman-adv/bridge_loop_avoidance.h
@@ -23,7 +23,8 @@
 #define _NET_BATMAN_ADV_BLA_H_
 
 #ifdef CONFIG_BATMAN_ADV_BLA
-int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid);
+int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid,
+           bool is_bcast);
 int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid);
 int bla_is_backbone_gw(struct sk_buff *skb,
                        struct orig_node *orig_node, int hdr_size);
@@ -41,7 +42,7 @@ void bla_free(struct bat_priv *bat_priv);
 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
 
 static inline int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb,
-                         short vid)
+                         short vid, bool is_bcast)
 {
         return 0;
 }
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 6e2530b02043..a0ec0e4ada4c 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -256,7 +256,11 @@ void interface_rx(struct net_device *soft_iface,
         struct bat_priv *bat_priv = netdev_priv(soft_iface);
         struct ethhdr *ethhdr;
         struct vlan_ethhdr *vhdr;
+        struct batman_header *batadv_header = (struct batman_header *)skb->data;
         short vid __maybe_unused = -1;
+        bool is_bcast;
+
+        is_bcast = (batadv_header->packet_type == BAT_BCAST);
 
         /* check if enough space is available for pulling, and pull */
         if (!pskb_may_pull(skb, hdr_size))
@@ -302,7 +306,7 @@ void interface_rx(struct net_device *soft_iface,
         /* Let the bridge loop avoidance check the packet. If will
          * not handle it, we can safely push it up.
          */
-        if (bla_rx(bat_priv, skb, vid))
+        if (bla_rx(bat_priv, skb, vid, is_bcast))
                 goto out;
 
         netif_rx(skb);
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index 554b31289607..8c83c175b03a 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -561,9 +561,9 @@ static int __init caif_device_init(void)
 
 static void __exit caif_device_exit(void)
 {
-        unregister_pernet_subsys(&caif_net_ops);
         unregister_netdevice_notifier(&caif_device_notifier);
         dev_remove_pack(&caif_packet_type);
+        unregister_pernet_subsys(&caif_net_ops);
 }
 
 module_init(caif_device_init);
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index b332c3d76059..10255e81be79 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1423,7 +1423,7 @@ static int process_connect(struct ceph_connection *con)
                  * dropped messages.
                  */
                 dout("process_connect got RESET peer seq %u\n",
-                     le32_to_cpu(con->in_connect.connect_seq));
+                     le32_to_cpu(con->in_reply.connect_seq));
                 pr_err("%s%lld %s connection reset\n",
                        ENTITY_NAME(con->peer_name),
                        ceph_pr_addr(&con->peer_addr.in_addr));
@@ -1450,10 +1450,10 @@ static int process_connect(struct ceph_connection *con)
                  * If we sent a smaller connect_seq than the peer has, try
                  * again with a larger value.
                  */
-                dout("process_connect got RETRY my seq = %u, peer_seq = %u\n",
+                dout("process_connect got RETRY_SESSION my seq %u, peer %u\n",
                      le32_to_cpu(con->out_connect.connect_seq),
-                     le32_to_cpu(con->in_connect.connect_seq));
-                con->connect_seq = le32_to_cpu(con->in_connect.connect_seq);
+                     le32_to_cpu(con->in_reply.connect_seq));
+                con->connect_seq = le32_to_cpu(con->in_reply.connect_seq);
                 ceph_con_out_kvec_reset(con);
                 ret = prepare_write_connect(con);
                 if (ret < 0)
@@ -1468,9 +1468,9 @@ static int process_connect(struct ceph_connection *con)
                  */
                 dout("process_connect got RETRY_GLOBAL my %u peer_gseq %u\n",
                      con->peer_global_seq,
-                     le32_to_cpu(con->in_connect.global_seq));
+                     le32_to_cpu(con->in_reply.global_seq));
                 get_global_seq(con->msgr,
-                               le32_to_cpu(con->in_connect.global_seq));
+                               le32_to_cpu(con->in_reply.global_seq));
                 ceph_con_out_kvec_reset(con);
                 ret = prepare_write_connect(con);
                 if (ret < 0)
diff --git a/net/core/dev.c b/net/core/dev.c
index 84f01ba81a34..1cb0d8a6aa6c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2444,8 +2444,12 @@ static void skb_update_prio(struct sk_buff *skb)
 {
         struct netprio_map *map = rcu_dereference_bh(skb->dev->priomap);
 
-        if ((!skb->priority) && (skb->sk) && map)
-                skb->priority = map->priomap[skb->sk->sk_cgrp_prioidx];
+        if (!skb->priority && skb->sk && map) {
+                unsigned int prioidx = skb->sk->sk_cgrp_prioidx;
+
+                if (prioidx < map->priomap_len)
+                        skb->priority = map->priomap[prioidx];
+        }
 }
 #else
 #define skb_update_prio(skb)
@@ -6279,7 +6283,8 @@ static struct hlist_head *netdev_create_hash(void)
 /* Initialize per network namespace state */
 static int __net_init netdev_init(struct net *net)
 {
-        INIT_LIST_HEAD(&net->dev_base_head);
+        if (net != &init_net)
+                INIT_LIST_HEAD(&net->dev_base_head);
 
         net->dev_name_head = netdev_create_hash();
         if (net->dev_name_head == NULL)
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index dddbacb8f28c..42f1e1c7514f 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -27,7 +27,9 @@ static DEFINE_MUTEX(net_mutex);
 LIST_HEAD(net_namespace_list);
 EXPORT_SYMBOL_GPL(net_namespace_list);
 
-struct net init_net;
+struct net init_net = {
+        .dev_base_head = LIST_HEAD_INIT(init_net.dev_base_head),
+};
 EXPORT_SYMBOL(init_net);
 
 #define INITIAL_NET_GEN_PTRS    13 /* +1 for len +2 for rcu_head */
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index 5b8aa2fae48b..b2e9caa1ad1a 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -49,8 +49,9 @@ static int get_prioidx(u32 *prio)
                 return -ENOSPC;
         }
         set_bit(prioidx, prioidx_map);
+        if (atomic_read(&max_prioidx) < prioidx)
+                atomic_set(&max_prioidx, prioidx);
         spin_unlock_irqrestore(&prioidx_map_lock, flags);
-        atomic_set(&max_prioidx, prioidx);
         *prio = prioidx;
         return 0;
 }
@@ -64,7 +65,7 @@ static void put_prioidx(u32 idx)
         spin_unlock_irqrestore(&prioidx_map_lock, flags);
 }
 
-static void extend_netdev_table(struct net_device *dev, u32 new_len)
+static int extend_netdev_table(struct net_device *dev, u32 new_len)
 {
         size_t new_size = sizeof(struct netprio_map) +
                            ((sizeof(u32) * new_len));
@@ -76,7 +77,7 @@ static void extend_netdev_table(struct net_device *dev, u32 new_len)
 
         if (!new_priomap) {
                 pr_warn("Unable to alloc new priomap!\n");
-                return;
+                return -ENOMEM;
         }
 
         for (i = 0;
@@ -89,46 +90,79 @@ static void extend_netdev_table(struct net_device *dev, u32 new_len)
         rcu_assign_pointer(dev->priomap, new_priomap);
         if (old_priomap)
                 kfree_rcu(old_priomap, rcu);
+        return 0;
 }
 
-static void update_netdev_tables(void)
+static int write_update_netdev_table(struct net_device *dev)
 {
+        int ret = 0;
+        u32 max_len;
+        struct netprio_map *map;
+
+        rtnl_lock();
+        max_len = atomic_read(&max_prioidx) + 1;
+        map = rtnl_dereference(dev->priomap);
+        if (!map || map->priomap_len < max_len)
+                ret = extend_netdev_table(dev, max_len);
+        rtnl_unlock();
+
+        return ret;
+}
+
+static int update_netdev_tables(void)
+{
+        int ret = 0;
         struct net_device *dev;
-        u32 max_len = atomic_read(&max_prioidx) + 1;
+        u32 max_len;
         struct netprio_map *map;
 
         rtnl_lock();
+        max_len = atomic_read(&max_prioidx) + 1;
         for_each_netdev(&init_net, dev) {
                 map = rtnl_dereference(dev->priomap);
-                if ((!map) ||
-                    (map->priomap_len < max_len))
-                        extend_netdev_table(dev, max_len);
+                /*
+                 * don't allocate priomap if we didn't
+                 * change net_prio.ifpriomap (map == NULL),
+                 * this will speed up skb_update_prio.
+                 */
+                if (map && map->priomap_len < max_len) {
+                        ret = extend_netdev_table(dev, max_len);
+                        if (ret < 0)
+                                break;
+                }
         }
         rtnl_unlock();
+        return ret;
 }
 
 static struct cgroup_subsys_state *cgrp_create(struct cgroup *cgrp)
 {
         struct cgroup_netprio_state *cs;
-        int ret;
+        int ret = -EINVAL;
 
         cs = kzalloc(sizeof(*cs), GFP_KERNEL);
         if (!cs)
                 return ERR_PTR(-ENOMEM);
 
-        if (cgrp->parent && cgrp_netprio_state(cgrp->parent)->prioidx) {
-                kfree(cs);
-                return ERR_PTR(-EINVAL);
-        }
+        if (cgrp->parent && cgrp_netprio_state(cgrp->parent)->prioidx)
+                goto out;
 
         ret = get_prioidx(&cs->prioidx);
-        if (ret != 0) {
+        if (ret < 0) {
                 pr_warn("No space in priority index array\n");
-                kfree(cs);
-                return ERR_PTR(ret);
+                goto out;
+        }
+
+        ret = update_netdev_tables();
+        if (ret < 0) {
+                put_prioidx(cs->prioidx);
+                goto out;
         }
 
         return &cs->css;
+out:
+        kfree(cs);
+        return ERR_PTR(ret);
 }
 
 static void cgrp_destroy(struct cgroup *cgrp)
@@ -141,7 +175,7 @@ static void cgrp_destroy(struct cgroup *cgrp)
         rtnl_lock();
         for_each_netdev(&init_net, dev) {
                 map = rtnl_dereference(dev->priomap);
-                if (map)
+                if (map && cs->prioidx < map->priomap_len)
                         map->priomap[cs->prioidx] = 0;
         }
         rtnl_unlock();
@@ -165,7 +199,7 @@ static int read_priomap(struct cgroup *cont, struct cftype *cft,
         rcu_read_lock();
         for_each_netdev_rcu(&init_net, dev) {
                 map = rcu_dereference(dev->priomap);
-                priority = map ? map->priomap[prioidx] : 0;
+                priority = (map && prioidx < map->priomap_len) ? map->priomap[prioidx] : 0;
                 cb->fill(cb, dev->name, priority);
         }
         rcu_read_unlock();
@@ -220,13 +254,17 @@ static int write_priomap(struct cgroup *cgrp, struct cftype *cft,
         if (!dev)
                 goto out_free_devname;
 
-        update_netdev_tables();
-        ret = 0;
+        ret = write_update_netdev_table(dev);
+        if (ret < 0)
+                goto out_put_dev;
+
         rcu_read_lock();
         map = rcu_dereference(dev->priomap);
         if (map)
                 map->priomap[prioidx] = priority;
         rcu_read_unlock();
+
+out_put_dev:
         dev_put(dev);
 
 out_free_devname:
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 46a3d23d259e..d124306b81fd 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -353,7 +353,7 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
         unsigned int fragsz = SKB_DATA_ALIGN(length + NET_SKB_PAD) +
                               SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 
-        if (fragsz <= PAGE_SIZE && !(gfp_mask & __GFP_WAIT)) {
+        if (fragsz <= PAGE_SIZE && !(gfp_mask & (__GFP_WAIT | GFP_DMA))) {
                 void *data = netdev_alloc_frag(fragsz);
 
                 if (likely(data)) {
diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c
index 6fbb2ad7bb6d..16705611589a 100644
--- a/net/ieee802154/dgram.c
+++ b/net/ieee802154/dgram.c
@@ -230,6 +230,12 @@ static int dgram_sendmsg(struct kiocb *iocb, struct sock *sk,
         mtu = dev->mtu;
         pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
 
+        if (size > mtu) {
+                pr_debug("size = %Zu, mtu = %u\n", size, mtu);
+                err = -EINVAL;
+                goto out_dev;
+        }
+
         hlen = LL_RESERVED_SPACE(dev);
         tlen = dev->needed_tailroom;
         skb = sock_alloc_send_skb(sk, hlen + tlen + size,
@@ -258,12 +264,6 @@ static int dgram_sendmsg(struct kiocb *iocb, struct sock *sk,
         if (err < 0)
                 goto out_skb;
 
-        if (size > mtu) {
-                pr_debug("size = %Zu, mtu = %u\n", size, mtu);
-                err = -EINVAL;
-                goto out_skb;
-        }
-
         skb->dev = dev;
         skb->sk  = sk;
         skb->protocol = htons(ETH_P_IEEE802154);
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index c48adc565e92..667c1d4ca984 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1725,8 +1725,10 @@ int cipso_v4_validate(const struct sk_buff *skb, unsigned char **option)
                 case CIPSO_V4_TAG_LOCAL:
                         /* This is a non-standard tag that we only allow for
                          * local connections, so if the incoming interface is
-                         * not the loopback device drop the packet. */
-                        if (!(skb->dev->flags & IFF_LOOPBACK)) {
+                         * not the loopback device drop the packet. Further,
+                         * there is no legitimate reason for setting this from
+                         * userspace so reject it if skb is NULL. */
+                        if (skb == NULL || !(skb->dev->flags & IFF_LOOPBACK)) {
                                 err_offset = opt_iter;
                                 goto validate_return_locked;
                         }
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index a4bb856de08f..0db5d34a06b6 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2174,15 +2174,13 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
                        sdata->name, mgmt->sa, status_code);
                 ieee80211_destroy_assoc_data(sdata, false);
         } else {
-                printk(KERN_DEBUG "%s: associated\n", sdata->name);
-
                 if (!ieee80211_assoc_success(sdata, *bss, mgmt, len)) {
                         /* oops -- internal error -- send timeout for now */
-                        ieee80211_destroy_assoc_data(sdata, true);
-                        sta_info_destroy_addr(sdata, mgmt->bssid);
+                        ieee80211_destroy_assoc_data(sdata, false);
                         cfg80211_put_bss(*bss);
                         return RX_MGMT_CFG80211_ASSOC_TIMEOUT;
                 }
+                printk(KERN_DEBUG "%s: associated\n", sdata->name);
 
                 /*
                  * destroy assoc_data afterwards, as otherwise an idle
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 2d1acc6c5445..f9e51ef8dfa2 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -809,7 +809,7 @@ minstrel_ht_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
                         max_rates = sband->n_bitrates;
         }
 
-        msp = kzalloc(sizeof(struct minstrel_ht_sta), gfp);
+        msp = kzalloc(sizeof(*msp), gfp);
         if (!msp)
                 return NULL;
 
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index d43e3c122f7b..84444dda194b 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1521,11 +1521,12 @@ static int ip_vs_dst_event(struct notifier_block *this, unsigned long event,
 {
         struct net_device *dev = ptr;
         struct net *net = dev_net(dev);
+        struct netns_ipvs *ipvs = net_ipvs(net);
         struct ip_vs_service *svc;
         struct ip_vs_dest *dest;
         unsigned int idx;
 
-        if (event != NETDEV_UNREGISTER)
+        if (event != NETDEV_UNREGISTER || !ipvs)
                 return NOTIFY_DONE;
         IP_VS_DBG(3, "%s() dev=%s\n", __func__, dev->name);
         EnterFunction(2);
@@ -1551,7 +1552,7 @@ static int ip_vs_dst_event(struct notifier_block *this, unsigned long event,
                 }
         }
 
-        list_for_each_entry(dest, &net_ipvs(net)->dest_trash, n_list) {
+        list_for_each_entry(dest, &ipvs->dest_trash, n_list) {
                 __ip_vs_dev_reset(dest, dev);
         }
         mutex_unlock(&__ip_vs_mutex);
diff --git a/net/netfilter/xt_set.c b/net/netfilter/xt_set.c
index 035960ec5cb9..c6f7db720d84 100644
--- a/net/netfilter/xt_set.c
+++ b/net/netfilter/xt_set.c
@@ -16,6 +16,7 @@
 
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter/xt_set.h>
+#include <linux/netfilter/ipset/ip_set_timeout.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -310,7 +311,8 @@ set_target_v2(struct sk_buff *skb, const struct xt_action_param *par)
                 info->del_set.flags, 0, UINT_MAX);
 
         /* Normalize to fit into jiffies */
-        if (add_opt.timeout > UINT_MAX/MSEC_PER_SEC)
+        if (add_opt.timeout != IPSET_NO_TIMEOUT &&
+            add_opt.timeout > UINT_MAX/MSEC_PER_SEC)
                 add_opt.timeout = UINT_MAX/MSEC_PER_SEC;
         if (info->add_set.index != IPSET_INVALID_ID)
                 ip_set_add(info->add_set.index, skb, par, &add_opt);
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 17a707db40eb..e06d458fc719 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -292,7 +292,7 @@ static int llcp_sock_getname(struct socket *sock, struct sockaddr *addr,
 
         pr_debug("%p\n", sk);
 
-        if (llcp_sock == NULL)
+        if (llcp_sock == NULL || llcp_sock->dev == NULL)
                 return -EBADFD;
 
         addr->sa_family = AF_NFC;
diff --git a/net/rxrpc/ar-peer.c b/net/rxrpc/ar-peer.c
index 2754f098d436..bebaa43484bc 100644
--- a/net/rxrpc/ar-peer.c
+++ b/net/rxrpc/ar-peer.c
@@ -229,7 +229,7 @@ found_UDP_peer:
         return peer;
 
 new_UDP_peer:
-        _net("Rx UDP DGRAM from NEW peer %d", peer->debug_id);
+        _net("Rx UDP DGRAM from NEW peer");
         read_unlock_bh(&rxrpc_peer_lock);
         _leave(" = -EBUSY [new]");
         return ERR_PTR(-EBUSY);
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index a2a95aabf9c2..c412ad0d0308 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -331,29 +331,22 @@ static psched_time_t packet_len_2_sched_time(unsigned int len, struct netem_sche
         return PSCHED_NS2TICKS(ticks);
 }
 
-static int tfifo_enqueue(struct sk_buff *nskb, struct Qdisc *sch)
+static void tfifo_enqueue(struct sk_buff *nskb, struct Qdisc *sch)
 {
         struct sk_buff_head *list = &sch->q;
         psched_time_t tnext = netem_skb_cb(nskb)->time_to_send;
-        struct sk_buff *skb;
-
-        if (likely(skb_queue_len(list) < sch->limit)) {
-                skb = skb_peek_tail(list);
-                /* Optimize for add at tail */
-                if (likely(!skb || tnext >= netem_skb_cb(skb)->time_to_send))
-                        return qdisc_enqueue_tail(nskb, sch);
+        struct sk_buff *skb = skb_peek_tail(list);
 
-                skb_queue_reverse_walk(list, skb) {
-                        if (tnext >= netem_skb_cb(skb)->time_to_send)
-                                break;
-                }
+        /* Optimize for add at tail */
+        if (likely(!skb || tnext >= netem_skb_cb(skb)->time_to_send))
+                return __skb_queue_tail(list, nskb);
 
-                __skb_queue_after(list, skb, nskb);
-                sch->qstats.backlog += qdisc_pkt_len(nskb);
-                return NET_XMIT_SUCCESS;
+        skb_queue_reverse_walk(list, skb) {
+                if (tnext >= netem_skb_cb(skb)->time_to_send)
+                        break;
         }
 
-        return qdisc_reshape_fail(nskb, sch);
+        __skb_queue_after(list, skb, nskb);
 }
 
 /*
@@ -368,7 +361,6 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
         /* We don't fill cb now as skb_unshare() may invalidate it */
         struct netem_skb_cb *cb;
         struct sk_buff *skb2;
-        int ret;
         int count = 1;
 
         /* Random duplication */
@@ -419,6 +411,11 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
                 skb->data[net_random() % skb_headlen(skb)] ^= 1<<(net_random() % 8);
         }
 
+        if (unlikely(skb_queue_len(&sch->q) >= sch->limit))
+                return qdisc_reshape_fail(skb, sch);
+
+        sch->qstats.backlog += qdisc_pkt_len(skb);
+
         cb = netem_skb_cb(skb);
         if (q->gap == 0 ||              /* not doing reordering */
             q->counter < q->gap - 1 ||  /* inside last reordering gap */
@@ -450,7 +447,7 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 
                 cb->time_to_send = now + delay;
                 ++q->counter;
-                ret = tfifo_enqueue(skb, sch);
+                tfifo_enqueue(skb, sch);
         } else {
                 /*
                  * Do re-ordering by putting one out of N packets at the front
@@ -460,16 +457,7 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
                 q->counter = 0;
 
                 __skb_queue_head(&sch->q, skb);
-                sch->qstats.backlog += qdisc_pkt_len(skb);
                 sch->qstats.requeues++;
-                ret = NET_XMIT_SUCCESS;
-        }
-
-        if (ret != NET_XMIT_SUCCESS) {
-                if (net_xmit_drop_count(ret)) {
-                        sch->qstats.drops++;
-                        return ret;
-                }
         }
 
         return NET_XMIT_SUCCESS;
diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c
index 74305c883bd3..30ea4674cabd 100644
--- a/net/sched/sch_sfb.c
+++ b/net/sched/sch_sfb.c
@@ -570,6 +570,8 @@ static int sfb_dump(struct Qdisc *sch, struct sk_buff *skb)
 
         sch->qstats.backlog = q->qdisc->qstats.backlog;
         opts = nla_nest_start(skb, TCA_OPTIONS);
+        if (opts == NULL)
+                goto nla_put_failure;
         if (nla_put(skb, TCA_SFB_PARMS, sizeof(opt), &opt))
                 goto nla_put_failure;
         return nla_nest_end(skb, opts);
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 80564fe03024..8b9b6790a3df 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -736,15 +736,12 @@ static void __sctp_unhash_endpoint(struct sctp_endpoint *ep)
 
         epb = &ep->base;
 
-        if (hlist_unhashed(&epb->node))
-                return;
-
         epb->hashent = sctp_ep_hashfn(epb->bind_addr.port);
 
         head = &sctp_ep_hashtable[epb->hashent];
 
         sctp_write_lock(&head->lock);
-        __hlist_del(&epb->node);
+        hlist_del_init(&epb->node);
         sctp_write_unlock(&head->lock);
 }
 
@@ -825,7 +822,7 @@ static void __sctp_unhash_established(struct sctp_association *asoc)
         head = &sctp_assoc_hashtable[epb->hashent];
 
         sctp_write_lock(&head->lock);
-        __hlist_del(&epb->node);
+        hlist_del_init(&epb->node);
         sctp_write_unlock(&head->lock);
 }
 
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index b3b8a8d813eb..31c7bfcd9b58 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1231,8 +1231,14 @@ out_free:
         SCTP_DEBUG_PRINTK("About to exit __sctp_connect() free asoc: %p"
                           " kaddrs: %p err: %d\n",
                           asoc, kaddrs, err);
-        if (asoc)
+        if (asoc) {
+                /* sctp_primitive_ASSOCIATE may have added this association
+                 * To the hash table, try to unhash it, just in case, its a noop
+                 * if it wasn't hashed so we're safe
+                 */
+                sctp_unhash_established(asoc);
                 sctp_association_free(asoc);
+        }
         return err;
 }
 
@@ -1942,8 +1948,10 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
         goto out_unlock;
 
 out_free:
-        if (new_asoc)
+        if (new_asoc) {
+                sctp_unhash_established(asoc);
                 sctp_association_free(asoc);
+        }
 out_unlock:
         sctp_release_sock(sk);
 
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 372ec6502aa8..ffd8900a38e8 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2717,7 +2717,7 @@ static int selinux_inode_setattr(struct dentry *dentry, struct iattr *iattr)
                         ATTR_ATIME_SET | ATTR_MTIME_SET | ATTR_TIMES_SET))
                 return dentry_has_perm(cred, dentry, FILE__SETATTR);
 
-        if (ia_valid & ATTR_SIZE)
+        if (selinux_policycap_openperm && (ia_valid & ATTR_SIZE))
                 av |= FILE__OPEN;
 
         return dentry_has_perm(cred, dentry, av);
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index b8c53723e09b..df2de54a958d 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -145,7 +145,9 @@ struct security_class_mapping secclass_map[] = {
             "node_bind", "name_connect", NULL } },
         { "memprotect", { "mmap_zero", NULL } },
         { "peer", { "recv", NULL } },
-        { "capability2", { "mac_override", "mac_admin", "syslog", NULL } },
+        { "capability2",
+          { "mac_override", "mac_admin", "syslog", "wake_alarm", "block_suspend",
+            NULL } },
         { "kernel_service", { "use_as_override", "create_files_as", NULL } },
         { "tun_socket",
           { COMMON_SOCK_PERMS, NULL } },
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 3d69aa9ff51e..46c2f6b7b123 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -250,8 +250,12 @@ endef
 all_objs := $(sort $(ALL_OBJS))
 all_deps := $(all_objs:%.o=.%.d)
 
+# let .d file also depends on the source and header files
 define check_deps
-                $(CC) -M $(CFLAGS) $< > $@;
+                @set -e; $(RM) $@; \
+                $(CC) -M $(CFLAGS) $< > $@.$$$$; \
+                sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
+                $(RM) $@.$$$$
 endef
 
 $(gui_deps): ks_version.h
@@ -270,11 +274,13 @@ endif
 
 tags:   force
         $(RM) tags
-        find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px
+        find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
+        --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 
 TAGS:   force
         $(RM) TAGS
-        find . -name '*.[ch]' | xargs etags
+        find . -name '*.[ch]' | xargs etags \
+        --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 
 define do_install
         $(print_install)                                \
@@ -290,7 +296,7 @@ install_lib: all_cmd install_plugins install_python
 install: install_lib
 
 clean:
-        $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES).*.d
+        $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d
         $(RM) tags TAGS
 
 endif # skip-makefile
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 554828219c33..5f34aa371b56 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -467,8 +467,10 @@ int pevent_register_function(struct pevent *pevent, char *func,
                 item->mod = NULL;
         item->addr = addr;
 
-        pevent->funclist = item;
+        if (!item->func || (mod && !item->mod))
+                die("malloc func");
 
+        pevent->funclist = item;
         pevent->func_count++;
 
         return 0;
@@ -511,12 +513,12 @@ struct printk_list {
 
 static int printk_cmp(const void *a, const void *b)
 {
-        const struct func_map *fa = a;
-        const struct func_map *fb = b;
+        const struct printk_map *pa = a;
+        const struct printk_map *pb = b;
 
-        if (fa->addr < fb->addr)
+        if (pa->addr < pb->addr)
                 return -1;
-        if (fa->addr > fb->addr)
+        if (pa->addr > pb->addr)
                 return 1;
 
         return 0;
@@ -583,10 +585,13 @@ int pevent_register_print_string(struct pevent *pevent, char *fmt,
         item = malloc_or_die(sizeof(*item));
 
         item->next = pevent->printklist;
-        pevent->printklist = item;
         item->printk = strdup(fmt);
         item->addr = addr;
 
+        if (!item->printk)
+                die("malloc fmt");
+
+        pevent->printklist = item;
         pevent->printk_count++;
 
         return 0;
@@ -616,7 +621,9 @@ static struct event_format *alloc_event(void)
 {
         struct event_format *event;
 
-        event = malloc_or_die(sizeof(*event));
+        event = malloc(sizeof(*event));
+        if (!event)
+                return NULL;
         memset(event, 0, sizeof(*event));
 
         return event;
@@ -626,12 +633,8 @@ static void add_event(struct pevent *pevent, struct event_format *event)
 {
         int i;
 
-        if (!pevent->events)
-                pevent->events = malloc_or_die(sizeof(event));
-        else
-                pevent->events =
-                        realloc(pevent->events, sizeof(event) *
-                                (pevent->nr_events + 1));
+        pevent->events = realloc(pevent->events, sizeof(event) *
+                                 (pevent->nr_events + 1));
         if (!pevent->events)
                 die("Can not allocate events");
 
@@ -697,6 +700,10 @@ static void free_arg(struct print_arg *arg)
                 free_arg(arg->symbol.field);
                 free_flag_sym(arg->symbol.symbols);
                 break;
+        case PRINT_HEX:
+                free_arg(arg->hex.field);
+                free_arg(arg->hex.size);
+                break;
         case PRINT_TYPE:
                 free(arg->typecast.type);
                 free_arg(arg->typecast.item);
@@ -775,6 +782,25 @@ int pevent_peek_char(void)
         return __peek_char();
 }
 
+static int extend_token(char **tok, char *buf, int size)
+{
+        char *newtok = realloc(*tok, size);
+
+        if (!newtok) {
+                free(*tok);
+                *tok = NULL;
+                return -1;
+        }
+
+        if (!*tok)
+                strcpy(newtok, buf);
+        else
+                strcat(newtok, buf);
+        *tok = newtok;
+
+        return 0;
+}
+
 static enum event_type force_token(const char *str, char **tok);
 
 static enum event_type __read_token(char **tok)
@@ -859,17 +885,10 @@ static enum event_type __read_token(char **tok)
                 do {
                         if (i == (BUFSIZ - 1)) {
                                 buf[i] = 0;
-                                if (*tok) {
-                                        *tok = realloc(*tok, tok_size + BUFSIZ);
-                                        if (!*tok)
-                                                return EVENT_NONE;
-                                        strcat(*tok, buf);
-                                } else
-                                        *tok = strdup(buf);
+                                tok_size += BUFSIZ;
 
-                                if (!*tok)
+                                if (extend_token(tok, buf, tok_size) < 0)
                                         return EVENT_NONE;
-                                tok_size += BUFSIZ;
                                 i = 0;
                         }
                         last_ch = ch;
@@ -908,17 +927,10 @@ static enum event_type __read_token(char **tok)
         while (get_type(__peek_char()) == type) {
                 if (i == (BUFSIZ - 1)) {
                         buf[i] = 0;
-                        if (*tok) {
-                                *tok = realloc(*tok, tok_size + BUFSIZ);
-                                if (!*tok)
-                                        return EVENT_NONE;
-                                strcat(*tok, buf);
-                        } else
-                                *tok = strdup(buf);
+                        tok_size += BUFSIZ;
 
-                        if (!*tok)
+                        if (extend_token(tok, buf, tok_size) < 0)
                                 return EVENT_NONE;
-                        tok_size += BUFSIZ;
                         i = 0;
                 }
                 ch = __read_char();
@@ -927,14 +939,7 @@ static enum event_type __read_token(char **tok)
 
  out:
         buf[i] = 0;
-        if (*tok) {
-                *tok = realloc(*tok, tok_size + i);
-                if (!*tok)
-                        return EVENT_NONE;
-                strcat(*tok, buf);
-        } else
-                *tok = strdup(buf);
-        if (!*tok)
+        if (extend_token(tok, buf, tok_size + i + 1) < 0)
                 return EVENT_NONE;
 
         if (type == EVENT_ITEM) {
@@ -1255,9 +1260,15 @@ static int event_read_fields(struct event_format *event, struct format_field **f
                                         field->flags |= FIELD_IS_POINTER;
 
                                 if (field->type) {
-                                        field->type = realloc(field->type,
-                                                              strlen(field->type) +
-                                                              strlen(last_token) + 2);
+                                        char *new_type;
+                                        new_type = realloc(field->type,
+                                                           strlen(field->type) +
+                                                           strlen(last_token) + 2);
+                                        if (!new_type) {
+                                                free(last_token);
+                                                goto fail;
+                                        }
+                                        field->type = new_type;
                                         strcat(field->type, " ");
                                         strcat(field->type, last_token);
                                         free(last_token);
@@ -1282,6 +1293,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
                 if (strcmp(token, "[") == 0) {
                         enum event_type last_type = type;
                         char *brackets = token;
+                        char *new_brackets;
                         int len;
 
                         field->flags |= FIELD_IS_ARRAY;
@@ -1301,9 +1313,14 @@ static int event_read_fields(struct event_format *event, struct format_field **f
                                         len = 1;
                                 last_type = type;
 
-                                brackets = realloc(brackets,
-                                                   strlen(brackets) +
-                                                   strlen(token) + len);
+                                new_brackets = realloc(brackets,
+                                                       strlen(brackets) +
+                                                       strlen(token) + len);
+                                if (!new_brackets) {
+                                        free(brackets);
+                                        goto fail;
+                                }
+                                brackets = new_brackets;
                                 if (len == 2)
                                         strcat(brackets, " ");
                                 strcat(brackets, token);
@@ -1319,7 +1336,12 @@ static int event_read_fields(struct event_format *event, struct format_field **f
 
                         free_token(token);
 
-                        brackets = realloc(brackets, strlen(brackets) + 2);
+                        new_brackets = realloc(brackets, strlen(brackets) + 2);
+                        if (!new_brackets) {
+                                free(brackets);
+                                goto fail;
+                        }
+                        brackets = new_brackets;
                         strcat(brackets, "]");
 
                         /* add brackets to type */
@@ -1330,10 +1352,16 @@ static int event_read_fields(struct event_format *event, struct format_field **f
                          * the format: type [] item;
                          */
                         if (type == EVENT_ITEM) {
-                                field->type = realloc(field->type,
-                                                      strlen(field->type) +
-                                                      strlen(field->name) +
-                                                      strlen(brackets) + 2);
+                                char *new_type;
+                                new_type = realloc(field->type,
+                                                   strlen(field->type) +
+                                                   strlen(field->name) +
+                                                   strlen(brackets) + 2);
+                                if (!new_type) {
+                                        free(brackets);
+                                        goto fail;
+                                }
+                                field->type = new_type;
                                 strcat(field->type, " ");
                                 strcat(field->type, field->name);
                                 free_token(field->name);
@@ -1341,9 +1369,15 @@ static int event_read_fields(struct event_format *event, struct format_field **f
                                 field->name = token;
                                 type = read_token(&token);
                         } else {
-                                field->type = realloc(field->type,
-                                                      strlen(field->type) +
-                                                      strlen(brackets) + 1);
+                                char *new_type;
+                                new_type = realloc(field->type,
+                                                   strlen(field->type) +
+                                                   strlen(brackets) + 1);
+                                if (!new_type) {
+                                        free(brackets);
+                                        goto fail;
+                                }
+                                field->type = new_type;
                                 strcat(field->type, brackets);
                         }
                         free(brackets);
@@ -1726,10 +1760,16 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
                 /* could just be a type pointer */
                 if ((strcmp(arg->op.op, "*") == 0) &&
                     type == EVENT_DELIM && (strcmp(token, ")") == 0)) {
+                        char *new_atom;
+
                         if (left->type != PRINT_ATOM)
                                 die("bad pointer type");
-                        left->atom.atom = realloc(left->atom.atom,
+                        new_atom = realloc(left->atom.atom,
                                             strlen(left->atom.atom) + 3);
+                        if (!new_atom)
+                                goto out_free;
+
+                        left->atom.atom = new_atom;
                         strcat(left->atom.atom, " *");
                         free(arg->op.op);
                         *arg = *left;
@@ -2146,6 +2186,8 @@ process_fields(struct event_format *event, struct print_flag_sym **list, char **
                 if (value == NULL)
                         goto out_free;
                 field->value = strdup(value);
+                if (field->value == NULL)
+                        goto out_free;
 
                 free_arg(arg);
                 arg = alloc_arg();
@@ -2159,6 +2201,8 @@ process_fields(struct event_format *event, struct print_flag_sym **list, char **
                 if (value == NULL)
                         goto out_free;
                 field->str = strdup(value);
+                if (field->str == NULL)
+                        goto out_free;
                 free_arg(arg);
                 arg = NULL;
 
@@ -2260,6 +2304,45 @@ process_symbols(struct event_format *event, struct print_arg *arg, char **tok)
 }
 
 static enum event_type
+process_hex(struct event_format *event, struct print_arg *arg, char **tok)
+{
+        struct print_arg *field;
+        enum event_type type;
+        char *token;
+
+        memset(arg, 0, sizeof(*arg));
+        arg->type = PRINT_HEX;
+
+        field = alloc_arg();
+        type = process_arg(event, field, &token);
+
+        if (test_type_token(type, token, EVENT_DELIM, ","))
+                goto out_free;
+
+        arg->hex.field = field;
+
+        free_token(token);
+
+        field = alloc_arg();
+        type = process_arg(event, field, &token);
+
+        if (test_type_token(type, token, EVENT_DELIM, ")"))
+                goto out_free;
+
+        arg->hex.size = field;
+
+        free_token(token);
+        type = read_token_item(tok);
+        return type;
+
+ out_free:
+        free_arg(field);
+        free_token(token);
+        *tok = NULL;
+        return EVENT_ERROR;
+}
+
+static enum event_type
 process_dynamic_array(struct event_format *event, struct print_arg *arg, char **tok)
 {
         struct format_field *field;
@@ -2488,6 +2571,10 @@ process_function(struct event_format *event, struct print_arg *arg,
                 is_symbolic_field = 1;
                 return process_symbols(event, arg, tok);
         }
+        if (strcmp(token, "__print_hex") == 0) {
+                free_token(token);
+                return process_hex(event, arg, tok);
+        }
         if (strcmp(token, "__get_str") == 0) {
                 free_token(token);
                 return process_str(event, arg, tok);
@@ -2541,7 +2628,16 @@ process_arg_token(struct event_format *event, struct print_arg *arg,
                 }
                 /* atoms can be more than one token long */
                 while (type == EVENT_ITEM) {
-                        atom = realloc(atom, strlen(atom) + strlen(token) + 2);
+                        char *new_atom;
+                        new_atom = realloc(atom,
+                                           strlen(atom) + strlen(token) + 2);
+                        if (!new_atom) {
+                                free(atom);
+                                *tok = NULL;
+                                free_token(token);
+                                return EVENT_ERROR;
+                        }
+                        atom = new_atom;
                         strcat(atom, " ");
                         strcat(atom, token);
                         free_token(token);
@@ -2835,7 +2931,7 @@ static int get_common_info(struct pevent *pevent,
         event = pevent->events[0];
         field = pevent_find_common_field(event, type);
         if (!field)
-                die("field '%s' not found", type);
+                return -1;
 
         *offset = field->offset;
         *size = field->size;
@@ -2886,15 +2982,16 @@ static int parse_common_flags(struct pevent *pevent, void *data)
 
 static int parse_common_lock_depth(struct pevent *pevent, void *data)
 {
-        int ret;
-
-        ret = __parse_common(pevent, data,
-                             &pevent->ld_size, &pevent->ld_offset,
-                             "common_lock_depth");
-        if (ret < 0)
-                return -1;
+        return __parse_common(pevent, data,
+                              &pevent->ld_size, &pevent->ld_offset,
+                              "common_lock_depth");
+}
 
-        return ret;
+static int parse_common_migrate_disable(struct pevent *pevent, void *data)
+{
+        return __parse_common(pevent, data,
+                              &pevent->ld_size, &pevent->ld_offset,
+                              "common_migrate_disable");
 }
 
 static int events_id_cmp(const void *a, const void *b);
@@ -2995,6 +3092,7 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
                 break;
         case PRINT_FLAGS:
         case PRINT_SYMBOL:
+        case PRINT_HEX:
                 break;
         case PRINT_TYPE:
                 val = eval_num_arg(data, size, event, arg->typecast.item);
@@ -3214,11 +3312,13 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 {
         struct pevent *pevent = event->pevent;
         struct print_flag_sym *flag;
+        struct format_field *field;
         unsigned long long val, fval;
         unsigned long addr;
         char *str;
+        unsigned char *hex;
         int print;
-        int len;
+        int i, len;
 
         switch (arg->type) {
         case PRINT_NULL:
@@ -3228,27 +3328,29 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
                 print_str_to_seq(s, format, len_arg, arg->atom.atom);
                 return;
         case PRINT_FIELD:
-                if (!arg->field.field) {
-                        arg->field.field = pevent_find_any_field(event, arg->field.name);
-                        if (!arg->field.field)
+                field = arg->field.field;
+                if (!field) {
+                        field = pevent_find_any_field(event, arg->field.name);
+                        if (!field)
                                 die("field %s not found", arg->field.name);
+                        arg->field.field = field;
                 }
                 /* Zero sized fields, mean the rest of the data */
-                len = arg->field.field->size ? : size - arg->field.field->offset;
+                len = field->size ? : size - field->offset;
 
                 /*
                  * Some events pass in pointers. If this is not an array
                  * and the size is the same as long_size, assume that it
                  * is a pointer.
                  */
-                if (!(arg->field.field->flags & FIELD_IS_ARRAY) &&
-                    arg->field.field->size == pevent->long_size) {
-                        addr = *(unsigned long *)(data + arg->field.field->offset);
+                if (!(field->flags & FIELD_IS_ARRAY) &&
+                    field->size == pevent->long_size) {
+                        addr = *(unsigned long *)(data + field->offset);
                         trace_seq_printf(s, "%lx", addr);
                         break;
                 }
                 str = malloc_or_die(len + 1);
-                memcpy(str, data + arg->field.field->offset, len);
+                memcpy(str, data + field->offset, len);
                 str[len] = 0;
                 print_str_to_seq(s, format, len_arg, str);
                 free(str);
@@ -3281,6 +3383,23 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
                         }
                 }
                 break;
+        case PRINT_HEX:
+                field = arg->hex.field->field.field;
+                if (!field) {
+                        str = arg->hex.field->field.name;
+                        field = pevent_find_any_field(event, str);
+                        if (!field)
+                                die("field %s not found", str);
+                        arg->hex.field->field.field = field;
+                }
+                hex = data + field->offset;
+                len = eval_num_arg(data, size, event, arg->hex.size);
+                for (i = 0; i < len; i++) {
+                        if (i)
+                                trace_seq_putc(s, ' ');
+                        trace_seq_printf(s, "%02x", hex[i]);
+                }
+                break;
 
         case PRINT_TYPE:
                 break;
@@ -3299,7 +3418,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
                 break;
         }
         case PRINT_BSTRING:
-                trace_seq_printf(s, format, arg->string.string);
+                print_str_to_seq(s, format, len_arg, arg->string.string);
                 break;
         case PRINT_OP:
                 /*
@@ -3363,6 +3482,10 @@ process_defined_func(struct trace_seq *s, void *data, int size,
                         string = malloc_or_die(sizeof(*string));
                         string->next = strings;
                         string->str = strdup(str.buffer);
+                        if (!string->str)
+                                die("malloc str");
+
+                        args[i] = (unsigned long long)string->str;
                         strings = string;
                         trace_seq_destroy(&str);
                         break;
@@ -3400,6 +3523,7 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
         unsigned long long ip, val;
         char *ptr;
         void *bptr;
+        int vsize;
 
         field = pevent->bprint_buf_field;
         ip_field = pevent->bprint_ip_field;
@@ -3448,6 +3572,8 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
                                 goto process_again;
                         case '0' ... '9':
                                 goto process_again;
+                        case '.':
+                                goto process_again;
                         case 'p':
                                 ls = 1;
                                 /* fall through */
@@ -3455,23 +3581,30 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
                         case 'u':
                         case 'x':
                         case 'i':
-                                /* the pointers are always 4 bytes aligned */
-                                bptr = (void *)(((unsigned long)bptr + 3) &
-                                                ~3);
                                 switch (ls) {
                                 case 0:
-                                        ls = 4;
+                                        vsize = 4;
                                         break;
                                 case 1:
-                                        ls = pevent->long_size;
+                                        vsize = pevent->long_size;
                                         break;
                                 case 2:
-                                        ls = 8;
+                                        vsize = 8;
+                                        break;
                                 default:
+                                        vsize = ls; /* ? */
                                         break;
                                 }
-                                val = pevent_read_number(pevent, bptr, ls);
-                                bptr += ls;
+                        /* fall through */
+                        case '*':
+                                if (*ptr == '*')
+                                        vsize = 4;
+
+                                /* the pointers are always 4 bytes aligned */
+                                bptr = (void *)(((unsigned long)bptr + 3) &
+                                                ~3);
+                                val = pevent_read_number(pevent, bptr, vsize);
+                                bptr += vsize;
                                 arg = alloc_arg();
                                 arg->next = NULL;
                                 arg->type = PRINT_ATOM;
@@ -3479,12 +3612,21 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
                                 sprintf(arg->atom.atom, "%lld", val);
                                 *next = arg;
                                 next = &arg->next;
+                                /*
+                                 * The '*' case means that an arg is used as the length.
+                                 * We need to continue to figure out for what.
+                                 */
+                                if (*ptr == '*')
+                                        goto process_again;
+
                                 break;
                         case 's':
                                 arg = alloc_arg();
                                 arg->next = NULL;
                                 arg->type = PRINT_BSTRING;
                                 arg->string.string = strdup(bptr);
+                                if (!arg->string.string)
+                                        break;
                                 bptr += strlen(bptr) + 1;
                                 *next = arg;
                                 next = &arg->next;
@@ -3589,6 +3731,16 @@ static void print_mac_arg(struct trace_seq *s, int mac, void *data, int size,
         trace_seq_printf(s, fmt, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
 }
 
+static int is_printable_array(char *p, unsigned int len)
+{
+        unsigned int i;
+
+        for (i = 0; i < len && p[i]; i++)
+                if (!isprint(p[i]))
+                    return 0;
+        return 1;
+}
+
 static void print_event_fields(struct trace_seq *s, void *data, int size,
                                struct event_format *event)
 {
@@ -3608,7 +3760,8 @@ static void print_event_fields(struct trace_seq *s, void *data, int size,
                                 len = offset >> 16;
                                 offset &= 0xffff;
                         }
-                        if (field->flags & FIELD_IS_STRING) {
+                        if (field->flags & FIELD_IS_STRING &&
+                            is_printable_array(data + offset, len)) {
                                 trace_seq_printf(s, "%s", (char *)data + offset);
                         } else {
                                 trace_seq_puts(s, "ARRAY[");
@@ -3619,6 +3772,7 @@ static void print_event_fields(struct trace_seq *s, void *data, int size,
                                                          *((unsigned char *)data + offset + i));
                                 }
                                 trace_seq_putc(s, ']');
+                                field->flags &= ~FIELD_IS_STRING;
                         }
                 } else {
                         val = pevent_read_number(event->pevent, data + field->offset,
@@ -3758,6 +3912,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
                                 } else if (*(ptr+1) == 'M' || *(ptr+1) == 'm') {
                                         print_mac_arg(s, *(ptr+1), data, size, event, arg);
                                         ptr++;
+                                        arg = arg->next;
                                         break;
                                 }
 
@@ -3794,14 +3949,15 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
                                                 break;
                                         }
                                 }
-                                if (pevent->long_size == 8 && ls) {
+                                if (pevent->long_size == 8 && ls &&
+                                    sizeof(long) != 8) {
                                         char *p;
 
                                         ls = 2;
                                         /* make %l into %ll */
                                         p = strchr(format, 'l');
                                         if (p)
-                                                memmove(p, p+1, strlen(p)+1);
+                                                memmove(p+1, p, strlen(p)+1);
                                         else if (strcmp(format, "%p") == 0)
                                                 strcpy(format, "0x%llx");
                                 }
@@ -3878,8 +4034,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
  * pevent_data_lat_fmt - parse the data for the latency format
  * @pevent: a handle to the pevent
  * @s: the trace_seq to write to
- * @data: the raw data to read from
- * @size: currently unused.
+ * @record: the record to read from
  *
  * This parses out the Latency format (interrupts disabled,
  * need rescheduling, in hard/soft interrupt, preempt count
@@ -3889,10 +4044,13 @@ void pevent_data_lat_fmt(struct pevent *pevent,
                          struct trace_seq *s, struct pevent_record *record)
 {
         static int check_lock_depth = 1;
+        static int check_migrate_disable = 1;
         static int lock_depth_exists;
+        static int migrate_disable_exists;
         unsigned int lat_flags;
         unsigned int pc;
         int lock_depth;
+        int migrate_disable;
         int hardirq;
         int softirq;
         void *data = record->data;
@@ -3900,18 +4058,26 @@ void pevent_data_lat_fmt(struct pevent *pevent,
         lat_flags = parse_common_flags(pevent, data);
         pc = parse_common_pc(pevent, data);
         /* lock_depth may not always exist */
-        if (check_lock_depth) {
-                struct format_field *field;
-                struct event_format *event;
-
-                check_lock_depth = 0;
-                event = pevent->events[0];
-                field = pevent_find_common_field(event, "common_lock_depth");
-                if (field)
-                        lock_depth_exists = 1;
-        }
         if (lock_depth_exists)
                 lock_depth = parse_common_lock_depth(pevent, data);
+        else if (check_lock_depth) {
+                lock_depth = parse_common_lock_depth(pevent, data);
+                if (lock_depth < 0)
+                        check_lock_depth = 0;
+                else
+                        lock_depth_exists = 1;
+        }
+
+        /* migrate_disable may not always exist */
+        if (migrate_disable_exists)
+                migrate_disable = parse_common_migrate_disable(pevent, data);
+        else if (check_migrate_disable) {
+                migrate_disable = parse_common_migrate_disable(pevent, data);
+                if (migrate_disable < 0)
+                        check_migrate_disable = 0;
+                else
+                        migrate_disable_exists = 1;
+        }
 
         hardirq = lat_flags & TRACE_FLAG_HARDIRQ;
         softirq = lat_flags & TRACE_FLAG_SOFTIRQ;
@@ -3930,6 +4096,13 @@ void pevent_data_lat_fmt(struct pevent *pevent,
         else
                 trace_seq_putc(s, '.');
 
+        if (migrate_disable_exists) {
+                if (migrate_disable < 0)
+                        trace_seq_putc(s, '.');
+                else
+                        trace_seq_printf(s, "%d", migrate_disable);
+        }
+
         if (lock_depth_exists) {
                 if (lock_depth < 0)
                         trace_seq_putc(s, '.');
@@ -3996,10 +4169,7 @@ const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid)
  * pevent_data_comm_from_pid - parse the data into the print format
  * @s: the trace_seq to write to
  * @event: the handle to the event
- * @cpu: the cpu the event was recorded on
- * @data: the raw data
- * @size: the size of the raw data
- * @nsecs: the timestamp of the event
+ * @record: the record to read from
  *
  * This parses the raw @data using the given @event information and
  * writes the print format into the trace_seq.
@@ -4279,6 +4449,13 @@ static void print_args(struct print_arg *args)
                 trace_seq_destroy(&s);
                 printf(")");
                 break;
+        case PRINT_HEX:
+                printf("__print_hex(");
+                print_args(args->hex.field);
+                printf(", ");
+                print_args(args->hex.size);
+                printf(")");
+                break;
         case PRINT_STRING:
         case PRINT_BSTRING:
                 printf("__get_str(%s)", args->string.string);
@@ -4541,6 +4718,8 @@ int pevent_parse_event(struct pevent *pevent,
                 die("failed to read event id");
 
         event->system = strdup(sys);
+        if (!event->system)
+                die("failed to allocate system");
 
         /* Add pevent to event so that it can be referenced */
         event->pevent = pevent;
@@ -4582,6 +4761,11 @@ int pevent_parse_event(struct pevent *pevent,
                         list = &arg->next;
                         arg->type = PRINT_FIELD;
                         arg->field.name = strdup(field->name);
+                        if (!arg->field.name) {
+                                do_warning("failed to allocate field name");
+                                event->flags |= EVENT_FL_FAILED;
+                                return -1;
+                        }
                         arg->field.field = field;
                 }
                 return 0;
@@ -4753,7 +4937,7 @@ int pevent_get_any_field_val(struct trace_seq *s, struct event_format *event,
  * @record: The record with the field name.
  * @err: print default error if failed.
  *
- * Returns: 0 on success, -1 field not fould, or 1 if buffer is full.
+ * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
  */
 int pevent_print_num_field(struct trace_seq *s, const char *fmt,
                            struct event_format *event, const char *name,
@@ -4795,11 +4979,12 @@ static void free_func_handle(struct pevent_function_handler *func)
  * pevent_register_print_function - register a helper function
  * @pevent: the handle to the pevent
  * @func: the function to process the helper function
+ * @ret_type: the return type of the helper function
  * @name: the name of the helper function
  * @parameters: A list of enum pevent_func_arg_type
  *
  * Some events may have helper functions in the print format arguments.
- * This allows a plugin to dynmically create a way to process one
+ * This allows a plugin to dynamically create a way to process one
  * of these functions.
  *
  * The @parameters is a variable list of pevent_func_arg_type enums that
@@ -4870,12 +5055,13 @@ int pevent_register_print_function(struct pevent *pevent,
 }
 
 /**
- * pevent_register_event_handle - register a way to parse an event
+ * pevent_register_event_handler - register a way to parse an event
  * @pevent: the handle to the pevent
  * @id: the id of the event to register
  * @sys_name: the system name the event belongs to
  * @event_name: the name of the event
  * @func: the function to call to parse the event information
+ * @context: the data to be passed to @func
  *
  * This function allows a developer to override the parsing of
  * a given event. If for some reason the default print format
@@ -4925,6 +5111,11 @@ int pevent_register_event_handler(struct pevent *pevent,
         if (sys_name)
                 handle->sys_name = strdup(sys_name);
 
+        if ((event_name && !handle->event_name) ||
+            (sys_name && !handle->sys_name)) {
+                die("Failed to allocate event/sys name");
+        }
+
         handle->func = func;
         handle->next = pevent->handlers;
         pevent->handlers = handle;
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index ac997bc7b592..5772ad8cb386 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -226,6 +226,11 @@ struct print_arg_symbol {
         struct print_flag_sym   *symbols;
 };
 
+struct print_arg_hex {
+        struct print_arg        *field;
+        struct print_arg        *size;
+};
+
 struct print_arg_dynarray {
         struct format_field     *field;
         struct print_arg        *index;
@@ -253,6 +258,7 @@ enum print_arg_type {
         PRINT_FIELD,
         PRINT_FLAGS,
         PRINT_SYMBOL,
+        PRINT_HEX,
         PRINT_TYPE,
         PRINT_STRING,
         PRINT_BSTRING,
@@ -270,6 +276,7 @@ struct print_arg {
                 struct print_arg_typecast       typecast;
                 struct print_arg_flags          flags;
                 struct print_arg_symbol         symbol;
+                struct print_arg_hex            hex;
                 struct print_arg_func           func;
                 struct print_arg_string         string;
                 struct print_arg_op             op;
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index dfcfe2c131de..ad17855528f9 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -96,7 +96,7 @@ static enum event_type read_token(char **tok)
             (strcmp(token, "=") == 0 || strcmp(token, "!") == 0) &&
             pevent_peek_char() == '~') {
                 /* append it */
-                *tok = malloc(3);
+                *tok = malloc_or_die(3);
                 sprintf(*tok, "%c%c", *token, '~');
                 free_token(token);
                 /* Now remove the '~' from the buffer */
@@ -148,17 +148,11 @@ add_filter_type(struct event_filter *filter, int id)
         if (filter_type)
                 return filter_type;
 
-        if (!filter->filters)
-                filter->event_filters =
-                        malloc_or_die(sizeof(*filter->event_filters));
-        else {
-                filter->event_filters =
-                        realloc(filter->event_filters,
-                                sizeof(*filter->event_filters) *
-                                (filter->filters + 1));
-                if (!filter->event_filters)
-                        die("Could not allocate filter");
-        }
+        filter->event_filters = realloc(filter->event_filters,
+                                        sizeof(*filter->event_filters) *
+                                        (filter->filters + 1));
+        if (!filter->event_filters)
+                die("Could not allocate filter");
 
         for (i = 0; i < filter->filters; i++) {
                 if (filter->event_filters[i].event_id > id)
@@ -1480,7 +1474,7 @@ void pevent_filter_clear_trivial(struct event_filter *filter,
 {
         struct filter_type *filter_type;
         int count = 0;
-        int *ids;
+        int *ids = NULL;
         int i;
 
         if (!filter->filters)
@@ -1504,10 +1498,8 @@ void pevent_filter_clear_trivial(struct event_filter *filter,
                 default:
                         break;
                 }
-                if (count)
-                        ids = realloc(ids, sizeof(*ids) * (count + 1));
-                else
-                        ids = malloc(sizeof(*ids));
+
+                ids = realloc(ids, sizeof(*ids) * (count + 1));
                 if (!ids)
                         die("Can't allocate ids");
                 ids[count++] = filter_type->event_id;
@@ -1710,18 +1702,43 @@ static int test_num(struct event_format *event,
 
 static const char *get_field_str(struct filter_arg *arg, struct pevent_record *record)
 {
-        const char *val = record->data + arg->str.field->offset;
+        struct event_format *event;
+        struct pevent *pevent;
+        unsigned long long addr;
+        const char *val = NULL;
+        char hex[64];
 
-        /*
-         * We need to copy the data since we can't be sure the field
-         * is null terminated.
-         */
-        if (*(val + arg->str.field->size - 1)) {
-                /* copy it */
-                memcpy(arg->str.buffer, val, arg->str.field->size);
-                /* the buffer is already NULL terminated */
-                val = arg->str.buffer;
+        /* If the field is not a string convert it */
+        if (arg->str.field->flags & FIELD_IS_STRING) {
+                val = record->data + arg->str.field->offset;
+
+                /*
+                 * We need to copy the data since we can't be sure the field
+                 * is null terminated.
+                 */
+                if (*(val + arg->str.field->size - 1)) {
+                        /* copy it */
+                        memcpy(arg->str.buffer, val, arg->str.field->size);
+                        /* the buffer is already NULL terminated */
+                        val = arg->str.buffer;
+                }
+
+        } else {
+                event = arg->str.field->event;
+                pevent = event->pevent;
+                addr = get_value(event, arg->str.field, record);
+
+                if (arg->str.field->flags & (FIELD_IS_POINTER | FIELD_IS_LONG))
+                        /* convert to a kernel symbol */
+                        val = pevent_find_function(pevent, addr);
+
+                if (val == NULL) {
+                        /* just use the hex of the string name */
+                        snprintf(hex, 64, "0x%llx", addr);
+                        val = hex;
+                }
         }
+
         return val;
 }
 
@@ -2001,11 +2018,13 @@ static char *exp_to_str(struct event_filter *filter, struct filter_arg *arg)
         char *lstr;
         char *rstr;
         char *op;
-        char *str;
+        char *str = NULL;
         int len;
 
         lstr = arg_to_str(filter, arg->exp.left);
         rstr = arg_to_str(filter, arg->exp.right);
+        if (!lstr || !rstr)
+                goto out;
 
         switch (arg->exp.type) {
         case FILTER_EXP_ADD:
@@ -2045,6 +2064,7 @@ static char *exp_to_str(struct event_filter *filter, struct filter_arg *arg)
         len = strlen(op) + strlen(lstr) + strlen(rstr) + 4;
         str = malloc_or_die(len);
         snprintf(str, len, "%s %s %s", lstr, op, rstr);
+out:
         free(lstr);
         free(rstr);
 
@@ -2061,6 +2081,8 @@ static char *num_to_str(struct event_filter *filter, struct filter_arg *arg)
 
         lstr = arg_to_str(filter, arg->num.left);
         rstr = arg_to_str(filter, arg->num.right);
+        if (!lstr || !rstr)
+                goto out;
 
         switch (arg->num.type) {
         case FILTER_CMP_EQ:
@@ -2097,6 +2119,7 @@ static char *num_to_str(struct event_filter *filter, struct filter_arg *arg)
                 break;
         }
 
+out:
         free(lstr);
         free(rstr);
         return str;
@@ -2247,7 +2270,12 @@ int pevent_filter_compare(struct event_filter *filter1, struct event_filter *fil
                 /* The best way to compare complex filters is with strings */
                 str1 = arg_to_str(filter1, filter_type1->filter);
                 str2 = arg_to_str(filter2, filter_type2->filter);
-                result = strcmp(str1, str2) != 0;
+                if (str1 && str2)
+                        result = strcmp(str1, str2) != 0;
+                else
+                        /* bail out if allocation fails */
+                        result = 1;
+
                 free(str1);
                 free(str2);
                 if (result)
diff --git a/tools/perf/Documentation/perf-bench.txt b/tools/perf/Documentation/perf-bench.txt
index a3dbadb26ef5..7065cd6fbdfc 100644
--- a/tools/perf/Documentation/perf-bench.txt
+++ b/tools/perf/Documentation/perf-bench.txt
@@ -12,7 +12,7 @@ SYNOPSIS
 
 DESCRIPTION
 -----------
-This 'perf bench' command is general framework for benchmark suites.
+This 'perf bench' command is a general framework for benchmark suites.
 
 COMMON OPTIONS
 --------------
@@ -45,14 +45,20 @@ SUBSYSTEM
 'sched'::
         Scheduler and IPC mechanisms.
 
+'mem'::
+        Memory access performance.
+
+'all'::
+        All benchmark subsystems.
+
 SUITES FOR 'sched'
 ~~~~~~~~~~~~~~~~~~
 *messaging*::
 Suite for evaluating performance of scheduler and IPC mechanisms.
 Based on hackbench by Rusty Russell.
 
-Options of *pipe*
-^^^^^^^^^^^^^^^^^
+Options of *messaging*
+^^^^^^^^^^^^^^^^^^^^^^
 -p::
 --pipe::
 Use pipe() instead of socketpair()
@@ -115,6 +121,72 @@ Example of *pipe*
                 59004 ops/sec
 ---------------------
 
+SUITES FOR 'mem'
+~~~~~~~~~~~~~~~~
+*memcpy*::
+Suite for evaluating performance of simple memory copy in various ways.
+
+Options of *memcpy*
+^^^^^^^^^^^^^^^^^^^
+-l::
+--length::
+Specify length of memory to copy (default: 1MB).
+Available units are B, KB, MB, GB and TB (case insensitive).
+
+-r::
+--routine::
+Specify routine to copy (default: default).
+Available routines are depend on the architecture.
+On x86-64, x86-64-unrolled, x86-64-movsq and x86-64-movsb are supported.
+
+-i::
+--iterations::
+Repeat memcpy invocation this number of times.
+
+-c::
+--cycle::
+Use perf's cpu-cycles event instead of gettimeofday syscall.
+
+-o::
+--only-prefault::
+Show only the result with page faults before memcpy.
+
+-n::
+--no-prefault::
+Show only the result without page faults before memcpy.
+
+*memset*::
+Suite for evaluating performance of simple memory set in various ways.
+
+Options of *memset*
+^^^^^^^^^^^^^^^^^^^
+-l::
+--length::
+Specify length of memory to set (default: 1MB).
+Available units are B, KB, MB, GB and TB (case insensitive).
+
+-r::
+--routine::
+Specify routine to set (default: default).
+Available routines are depend on the architecture.
+On x86-64, x86-64-unrolled, x86-64-stosq and x86-64-stosb are supported.
+
+-i::
+--iterations::
+Repeat memset invocation this number of times.
+
+-c::
+--cycle::
+Use perf's cpu-cycles event instead of gettimeofday syscall.
+
+-o::
+--only-prefault::
+Show only the result with page faults before memset.
+
+-n::
+--no-prefault::
+Show only the result without page faults before memset.
+
 SEE ALSO
 --------
 linkperf:perf[1]
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 2d89f02719b5..495210a612c4 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -57,7 +57,7 @@ OPTIONS
 
 -s::
 --sort=::
-        Sort by key(s): pid, comm, dso, symbol, parent.
+        Sort by key(s): pid, comm, dso, symbol, parent, srcline.
 
 -p::
 --parent=<regex>::
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 4a5680cb242e..5b80d84d6b4a 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -112,7 +112,7 @@ Default is to monitor all CPUS.
 
 -s::
 --sort::
-        Sort by key(s): pid, comm, dso, symbol, parent
+        Sort by key(s): pid, comm, dso, symbol, parent, srcline.
 
 -n::
 --show-nr-samples::
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 0eee64cfe9a0..75d74e5db8d5 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -155,7 +155,7 @@ endif
 
 ### --- END CONFIGURATION SECTION ---
 
-BASIC_CFLAGS = -Iutil/include -Iarch/$(ARCH)/include -I$(OUTPUT)/util -I$(TRACE_EVENT_DIR) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
+BASIC_CFLAGS = -Iutil/include -Iarch/$(ARCH)/include -I$(OUTPUT)util -I$(TRACE_EVENT_DIR) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 BASIC_LDFLAGS =
 
 # Guard against environment variables
@@ -503,6 +503,7 @@ else
                 LIB_OBJS += $(OUTPUT)ui/progress.o
                 LIB_OBJS += $(OUTPUT)ui/util.o
                 LIB_OBJS += $(OUTPUT)ui/tui/setup.o
+                LIB_OBJS += $(OUTPUT)ui/tui/util.o
                 LIB_H += ui/browser.h
                 LIB_H += ui/browsers/map.h
                 LIB_H += ui/helpline.h
@@ -522,13 +523,18 @@ else
                 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
                 BASIC_CFLAGS += -DNO_GTK2_SUPPORT
         else
+                ifeq ($(call try-cc,$(SOURCE_GTK2_INFOBAR),$(FLAGS_GTK2)),y)
+                        BASIC_CFLAGS += -DHAVE_GTK_INFO_BAR
+                endif
                 BASIC_CFLAGS += $(shell pkg-config --cflags gtk+-2.0)
                 EXTLIBS += $(shell pkg-config --libs gtk+-2.0)
                 LIB_OBJS += $(OUTPUT)ui/gtk/browser.o
                 LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
+                LIB_OBJS += $(OUTPUT)ui/gtk/util.o
                 # Make sure that it'd be included only once.
                 ifneq ($(findstring -DNO_NEWT_SUPPORT,$(BASIC_CFLAGS)),)
                         LIB_OBJS += $(OUTPUT)ui/setup.o
+                        LIB_OBJS += $(OUTPUT)ui/util.o
                 endif
         endif
 endif
diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 71557225bf92..02dad5d3359b 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -24,21 +24,21 @@
 static const char       *length_str     = "1MB";
 static const char       *routine        = "default";
 static int              iterations      = 1;
-static bool             use_clock;
-static int              clock_fd;
+static bool             use_cycle;
+static int              cycle_fd;
 static bool             only_prefault;
 static bool             no_prefault;
 
 static const struct option options[] = {
         OPT_STRING('l', "length", &length_str, "1MB",
                     "Specify length of memory to copy. "
-                    "available unit: B, MB, GB (upper and lower)"),
+                    "Available units: B, KB, MB, GB and TB (upper and lower)"),
         OPT_STRING('r', "routine", &routine, "default",
                     "Specify routine to copy"),
         OPT_INTEGER('i', "iterations", &iterations,
                     "repeat memcpy() invocation this number of times"),
-        OPT_BOOLEAN('c', "clock", &use_clock,
-                    "Use CPU clock for measuring"),
+        OPT_BOOLEAN('c', "cycle", &use_cycle,
+                    "Use cycles event instead of gettimeofday() for measuring"),
         OPT_BOOLEAN('o', "only-prefault", &only_prefault,
                     "Show only the result with page faults before memcpy()"),
         OPT_BOOLEAN('n', "no-prefault", &no_prefault,
@@ -76,27 +76,27 @@ static const char * const bench_mem_memcpy_usage[] = {
         NULL
 };
 
-static struct perf_event_attr clock_attr = {
+static struct perf_event_attr cycle_attr = {
         .type           = PERF_TYPE_HARDWARE,
         .config         = PERF_COUNT_HW_CPU_CYCLES
 };
 
-static void init_clock(void)
+static void init_cycle(void)
 {
-        clock_fd = sys_perf_event_open(&clock_attr, getpid(), -1, -1, 0);
+        cycle_fd = sys_perf_event_open(&cycle_attr, getpid(), -1, -1, 0);
 
-        if (clock_fd < 0 && errno == ENOSYS)
+        if (cycle_fd < 0 && errno == ENOSYS)
                 die("No CONFIG_PERF_EVENTS=y kernel support configured?\n");
         else
-                BUG_ON(clock_fd < 0);
+                BUG_ON(cycle_fd < 0);
 }
 
-static u64 get_clock(void)
+static u64 get_cycle(void)
 {
         int ret;
         u64 clk;
 
-        ret = read(clock_fd, &clk, sizeof(u64));
+        ret = read(cycle_fd, &clk, sizeof(u64));
         BUG_ON(ret != sizeof(u64));
 
         return clk;
@@ -119,9 +119,9 @@ static void alloc_mem(void **dst, void **src, size_t length)
                 die("memory allocation failed - maybe length is too large?\n");
 }
 
-static u64 do_memcpy_clock(memcpy_t fn, size_t len, bool prefault)
+static u64 do_memcpy_cycle(memcpy_t fn, size_t len, bool prefault)
 {
-        u64 clock_start = 0ULL, clock_end = 0ULL;
+        u64 cycle_start = 0ULL, cycle_end = 0ULL;
         void *src = NULL, *dst = NULL;
         int i;
 
@@ -130,14 +130,14 @@ static u64 do_memcpy_clock(memcpy_t fn, size_t len, bool prefault)
         if (prefault)
                 fn(dst, src, len);
 
-        clock_start = get_clock();
+        cycle_start = get_cycle();
         for (i = 0; i < iterations; ++i)
                 fn(dst, src, len);
-        clock_end = get_clock();
+        cycle_end = get_cycle();
 
         free(src);
         free(dst);
-        return clock_end - clock_start;
+        return cycle_end - cycle_start;
 }
 
 static double do_memcpy_gettimeofday(memcpy_t fn, size_t len, bool prefault)
@@ -182,17 +182,17 @@ int bench_mem_memcpy(int argc, const char **argv,
         int i;
         size_t len;
         double result_bps[2];
-        u64 result_clock[2];
+        u64 result_cycle[2];
 
         argc = parse_options(argc, argv, options,
                              bench_mem_memcpy_usage, 0);
 
-        if (use_clock)
-                init_clock();
+        if (use_cycle)
+                init_cycle();
 
         len = (size_t)perf_atoll((char *)length_str);
 
-        result_clock[0] = result_clock[1] = 0ULL;
+        result_cycle[0] = result_cycle[1] = 0ULL;
         result_bps[0] = result_bps[1] = 0.0;
 
         if ((s64)len <= 0) {
@@ -223,11 +223,11 @@ int bench_mem_memcpy(int argc, const char **argv,
 
         if (!only_prefault && !no_prefault) {
                 /* show both of results */
-                if (use_clock) {
-                        result_clock[0] =
-                                do_memcpy_clock(routines[i].fn, len, false);
-                        result_clock[1] =
-                                do_memcpy_clock(routines[i].fn, len, true);
+                if (use_cycle) {
+                        result_cycle[0] =
+                                do_memcpy_cycle(routines[i].fn, len, false);
+                        result_cycle[1] =
+                                do_memcpy_cycle(routines[i].fn, len, true);
                 } else {
                         result_bps[0] =
                                 do_memcpy_gettimeofday(routines[i].fn,
@@ -237,9 +237,9 @@ int bench_mem_memcpy(int argc, const char **argv,
                                                 len, true);
                 }
         } else {
-                if (use_clock) {
-                        result_clock[pf] =
-                                do_memcpy_clock(routines[i].fn,
+                if (use_cycle) {
+                        result_cycle[pf] =
+                                do_memcpy_cycle(routines[i].fn,
                                                 len, only_prefault);
                 } else {
                         result_bps[pf] =
@@ -251,12 +251,12 @@ int bench_mem_memcpy(int argc, const char **argv,
         switch (bench_format) {
         case BENCH_FORMAT_DEFAULT:
                 if (!only_prefault && !no_prefault) {
-                        if (use_clock) {
-                                printf(" %14lf Clock/Byte\n",
-                                        (double)result_clock[0]
+                        if (use_cycle) {
+                                printf(" %14lf Cycle/Byte\n",
+                                        (double)result_cycle[0]
                                         / (double)len);
-                                printf(" %14lf Clock/Byte (with prefault)\n",
-                                        (double)result_clock[1]
+                                printf(" %14lf Cycle/Byte (with prefault)\n",
+                                        (double)result_cycle[1]
                                         / (double)len);
                         } else {
                                 print_bps(result_bps[0]);
@@ -265,9 +265,9 @@ int bench_mem_memcpy(int argc, const char **argv,
                                 printf(" (with prefault)\n");
                         }
                 } else {
-                        if (use_clock) {
-                                printf(" %14lf Clock/Byte",
-                                        (double)result_clock[pf]
+                        if (use_cycle) {
+                                printf(" %14lf Cycle/Byte",
+                                        (double)result_cycle[pf]
                                         / (double)len);
                         } else
                                 print_bps(result_bps[pf]);
@@ -277,17 +277,17 @@ int bench_mem_memcpy(int argc, const char **argv,
                 break;
         case BENCH_FORMAT_SIMPLE:
                 if (!only_prefault && !no_prefault) {
-                        if (use_clock) {
+                        if (use_cycle) {
                                 printf("%lf %lf\n",
-                                        (double)result_clock[0] / (double)len,
-                                        (double)result_clock[1] / (double)len);
+                                        (double)result_cycle[0] / (double)len,
+                                        (double)result_cycle[1] / (double)len);
                         } else {
                                 printf("%lf %lf\n",
                                         result_bps[0], result_bps[1]);
                         }
                 } else {
-                        if (use_clock) {
-                                printf("%lf\n", (double)result_clock[pf]
+                        if (use_cycle) {
+                                printf("%lf\n", (double)result_cycle[pf]
                                         / (double)len);
                         } else
                                 printf("%lf\n", result_bps[pf]);
diff --git a/tools/perf/bench/mem-memset.c b/tools/perf/bench/mem-memset.c
index e9079185bd72..350cc9557265 100644
--- a/tools/perf/bench/mem-memset.c
+++ b/tools/perf/bench/mem-memset.c
@@ -24,21 +24,21 @@
 static const char       *length_str     = "1MB";
 static const char       *routine        = "default";
 static int              iterations      = 1;
-static bool             use_clock;
-static int              clock_fd;
+static bool             use_cycle;
+static int              cycle_fd;
 static bool             only_prefault;
 static bool             no_prefault;
 
 static const struct option options[] = {
         OPT_STRING('l', "length", &length_str, "1MB",
-                    "Specify length of memory to copy. "
-                    "available unit: B, MB, GB (upper and lower)"),
+                    "Specify length of memory to set. "
+                    "Available units: B, KB, MB, GB and TB (upper and lower)"),
         OPT_STRING('r', "routine", &routine, "default",
-                    "Specify routine to copy"),
+                    "Specify routine to set"),
         OPT_INTEGER('i', "iterations", &iterations,
                     "repeat memset() invocation this number of times"),
-        OPT_BOOLEAN('c', "clock", &use_clock,
-                    "Use CPU clock for measuring"),
+        OPT_BOOLEAN('c', "cycle", &use_cycle,
+                    "Use cycles event instead of gettimeofday() for measuring"),
         OPT_BOOLEAN('o', "only-prefault", &only_prefault,
                     "Show only the result with page faults before memset()"),
         OPT_BOOLEAN('n', "no-prefault", &no_prefault,
@@ -76,27 +76,27 @@ static const char * const bench_mem_memset_usage[] = {
         NULL
 };
 
-static struct perf_event_attr clock_attr = {
+static struct perf_event_attr cycle_attr = {
         .type           = PERF_TYPE_HARDWARE,
         .config         = PERF_COUNT_HW_CPU_CYCLES
 };
 
-static void init_clock(void)
+static void init_cycle(void)
 {
-        clock_fd = sys_perf_event_open(&clock_attr, getpid(), -1, -1, 0);
+        cycle_fd = sys_perf_event_open(&cycle_attr, getpid(), -1, -1, 0);
 
-        if (clock_fd < 0 && errno == ENOSYS)
+        if (cycle_fd < 0 && errno == ENOSYS)
                 die("No CONFIG_PERF_EVENTS=y kernel support configured?\n");
         else
-                BUG_ON(clock_fd < 0);
+                BUG_ON(cycle_fd < 0);
 }
 
-static u64 get_clock(void)
+static u64 get_cycle(void)
 {
         int ret;
         u64 clk;
 
-        ret = read(clock_fd, &clk, sizeof(u64));
+        ret = read(cycle_fd, &clk, sizeof(u64));
         BUG_ON(ret != sizeof(u64));
 
         return clk;
@@ -115,9 +115,9 @@ static void alloc_mem(void **dst, size_t length)
                 die("memory allocation failed - maybe length is too large?\n");
 }
 
-static u64 do_memset_clock(memset_t fn, size_t len, bool prefault)
+static u64 do_memset_cycle(memset_t fn, size_t len, bool prefault)
 {
-        u64 clock_start = 0ULL, clock_end = 0ULL;
+        u64 cycle_start = 0ULL, cycle_end = 0ULL;
         void *dst = NULL;
         int i;
 
@@ -126,13 +126,13 @@ static u64 do_memset_clock(memset_t fn, size_t len, bool prefault)
         if (prefault)
                 fn(dst, -1, len);
 
-        clock_start = get_clock();
+        cycle_start = get_cycle();
         for (i = 0; i < iterations; ++i)
                 fn(dst, i, len);
-        clock_end = get_clock();
+        cycle_end = get_cycle();
 
         free(dst);
-        return clock_end - clock_start;
+        return cycle_end - cycle_start;
 }
 
 static double do_memset_gettimeofday(memset_t fn, size_t len, bool prefault)
@@ -176,17 +176,17 @@ int bench_mem_memset(int argc, const char **argv,
         int i;
         size_t len;
         double result_bps[2];
-        u64 result_clock[2];
+        u64 result_cycle[2];
 
         argc = parse_options(argc, argv, options,
                              bench_mem_memset_usage, 0);
 
-        if (use_clock)
-                init_clock();
+        if (use_cycle)
+                init_cycle();
 
         len = (size_t)perf_atoll((char *)length_str);
 
-        result_clock[0] = result_clock[1] = 0ULL;
+        result_cycle[0] = result_cycle[1] = 0ULL;
         result_bps[0] = result_bps[1] = 0.0;
 
         if ((s64)len <= 0) {
@@ -217,11 +217,11 @@ int bench_mem_memset(int argc, const char **argv,
 
         if (!only_prefault && !no_prefault) {
                 /* show both of results */
-                if (use_clock) {
-                        result_clock[0] =
-                                do_memset_clock(routines[i].fn, len, false);
-                        result_clock[1] =
-                                do_memset_clock(routines[i].fn, len, true);
+                if (use_cycle) {
+                        result_cycle[0] =
+                                do_memset_cycle(routines[i].fn, len, false);
+                        result_cycle[1] =
+                                do_memset_cycle(routines[i].fn, len, true);
                 } else {
                         result_bps[0] =
                                 do_memset_gettimeofday(routines[i].fn,
@@ -231,9 +231,9 @@ int bench_mem_memset(int argc, const char **argv,
                                                 len, true);
                 }
         } else {
-                if (use_clock) {
-                        result_clock[pf] =
-                                do_memset_clock(routines[i].fn,
+                if (use_cycle) {
+                        result_cycle[pf] =
+                                do_memset_cycle(routines[i].fn,
                                                 len, only_prefault);
                 } else {
                         result_bps[pf] =
@@ -245,12 +245,12 @@ int bench_mem_memset(int argc, const char **argv,
         switch (bench_format) {
         case BENCH_FORMAT_DEFAULT:
                 if (!only_prefault && !no_prefault) {
-                        if (use_clock) {
-                                printf(" %14lf Clock/Byte\n",
-                                        (double)result_clock[0]
+                        if (use_cycle) {
+                                printf(" %14lf Cycle/Byte\n",
+                                        (double)result_cycle[0]
                                         / (double)len);
-                                printf(" %14lf Clock/Byte (with prefault)\n ",
-                                        (double)result_clock[1]
+                                printf(" %14lf Cycle/Byte (with prefault)\n ",
+                                        (double)result_cycle[1]
                                         / (double)len);
                         } else {
                                 print_bps(result_bps[0]);
@@ -259,9 +259,9 @@ int bench_mem_memset(int argc, const char **argv,
                                 printf(" (with prefault)\n");
                         }
                 } else {
-                        if (use_clock) {
-                                printf(" %14lf Clock/Byte",
-                                        (double)result_clock[pf]
+                        if (use_cycle) {
+                                printf(" %14lf Cycle/Byte",
+                                        (double)result_cycle[pf]
                                         / (double)len);
                         } else
                                 print_bps(result_bps[pf]);
@@ -271,17 +271,17 @@ int bench_mem_memset(int argc, const char **argv,
                 break;
         case BENCH_FORMAT_SIMPLE:
                 if (!only_prefault && !no_prefault) {
-                        if (use_clock) {
+                        if (use_cycle) {
                                 printf("%lf %lf\n",
-                                        (double)result_clock[0] / (double)len,
-                                        (double)result_clock[1] / (double)len);
+                                        (double)result_cycle[0] / (double)len,
+                                        (double)result_cycle[1] / (double)len);
                         } else {
                                 printf("%lf %lf\n",
                                         result_bps[0], result_bps[1]);
                         }
                 } else {
-                        if (use_clock) {
-                                printf("%lf\n", (double)result_clock[pf]
+                        if (use_cycle) {
+                                printf("%lf\n", (double)result_cycle[pf]
                                         / (double)len);
                         } else
                                 printf("%lf\n", result_bps[pf]);
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index b0e74ab2d7a2..1f3100216448 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -33,7 +33,7 @@ struct bench_suite {
 };
                                                 \
 /* sentinel: easy for help */
-#define suite_all { "all", "test all suite (pseudo suite)", NULL }
+#define suite_all { "all", "Test all benchmark suites", NULL }
 
 static struct bench_suite sched_suites[] = {
         { "messaging",
@@ -75,7 +75,7 @@ static struct bench_subsys subsystems[] = {
           "memory access performance",
           mem_suites },
         { "all",                /* sentinel: easy for help */
-          "test all subsystem (pseudo subsystem)",
+          "all benchmark subsystem",
           NULL },
         { NULL,
           NULL,
diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
index acd78dc28341..0dd5a058f766 100644
--- a/tools/perf/builtin-evlist.c
+++ b/tools/perf/builtin-evlist.c
@@ -60,7 +60,7 @@ static int __cmd_evlist(const char *input_name, struct perf_attr_details *detail
         list_for_each_entry(pos, &session->evlist->entries, node) {
                 bool first = true;
 
-                printf("%s", event_name(pos));
+                printf("%s", perf_evsel__name(pos));
 
                 if (details->verbose || details->freq) {
                         comma_printf(&first, " sample_freq=%" PRIu64,
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 547af48deb4f..ce35015f2dc6 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -57,6 +57,11 @@ static unsigned long nr_allocs, nr_cross_allocs;
 
 #define PATH_SYS_NODE   "/sys/devices/system/node"
 
+struct perf_kmem {
+        struct perf_tool    tool;
+        struct perf_session *session;
+};
+
 static void init_cpunode_map(void)
 {
         FILE *fp;
@@ -278,14 +283,16 @@ static void process_free_event(void *data,
         s_alloc->alloc_cpu = -1;
 }
 
-static void process_raw_event(union perf_event *raw_event __used, void *data,
+static void process_raw_event(struct perf_tool *tool,
+                              union perf_event *raw_event __used, void *data,
                               int cpu, u64 timestamp, struct thread *thread)
 {
+        struct perf_kmem *kmem = container_of(tool, struct perf_kmem, tool);
         struct event_format *event;
         int type;
 
-        type = trace_parse_common_type(data);
-        event = trace_find_event(type);
+        type = trace_parse_common_type(kmem->session->pevent, data);
+        event = pevent_find_event(kmem->session->pevent, type);
 
         if (!strcmp(event->name, "kmalloc") ||
             !strcmp(event->name, "kmem_cache_alloc")) {
@@ -306,7 +313,7 @@ static void process_raw_event(union perf_event *raw_event __used, void *data,
         }
 }
 
-static int process_sample_event(struct perf_tool *tool __used,
+static int process_sample_event(struct perf_tool *tool,
                                 union perf_event *event,
                                 struct perf_sample *sample,
                                 struct perf_evsel *evsel __used,
@@ -322,16 +329,18 @@ static int process_sample_event(struct perf_tool *tool __used,
 
         dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
 
-        process_raw_event(event, sample->raw_data, sample->cpu,
+        process_raw_event(tool, event, sample->raw_data, sample->cpu,
                           sample->time, thread);
 
         return 0;
 }
 
-static struct perf_tool perf_kmem = {
-        .sample                 = process_sample_event,
-        .comm                   = perf_event__process_comm,
-        .ordered_samples        = true,
+static struct perf_kmem perf_kmem = {
+        .tool = {
+                .sample                 = process_sample_event,
+                .comm                   = perf_event__process_comm,
+                .ordered_samples        = true,
+        },
 };
 
 static double fragmentation(unsigned long n_req, unsigned long n_alloc)
@@ -486,11 +495,15 @@ static void sort_result(void)
 static int __cmd_kmem(void)
 {
         int err = -EINVAL;
-        struct perf_session *session = perf_session__new(input_name, O_RDONLY,
-                                                         0, false, &perf_kmem);
+        struct perf_session *session;
+
+        session = perf_session__new(input_name, O_RDONLY, 0, false,
+                                    &perf_kmem.tool);
         if (session == NULL)
                 return -ENOMEM;
 
+        perf_kmem.session = session;
+
         if (perf_session__create_kernel_maps(session) < 0)
                 goto out_delete;
 
@@ -498,7 +511,7 @@ static int __cmd_kmem(void)
                 goto out_delete;
 
         setup_pager();
-        err = perf_session__process_events(session, &perf_kmem);
+        err = perf_session__process_events(session, &perf_kmem.tool);
         if (err != 0)
                 goto out_delete;
         sort_result();
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index fd53319de20d..b3c428548868 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -724,8 +724,8 @@ process_raw_event(void *data, int cpu, u64 timestamp, struct thread *thread)
         struct event_format *event;
         int type;
 
-        type = trace_parse_common_type(data);
-        event = trace_find_event(type);
+        type = trace_parse_common_type(session->pevent, data);
+        event = pevent_find_event(session->pevent, type);
 
         if (!strcmp(event->name, "lock_acquire"))
                 process_lock_acquire_event(data, event, cpu, timestamp, thread);
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index f95840d04e4c..f5a6452931e6 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -265,7 +265,7 @@ try_again:
 
                         if (err == ENOENT) {
                                 ui__error("The %s event is not supported.\n",
-                                            event_name(pos));
+                                          perf_evsel__name(pos));
                                 exit(EXIT_FAILURE);
                         }
 
@@ -916,7 +916,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
                 usage_with_options(record_usage, record_options);
 
         list_for_each_entry(pos, &evsel_list->entries, node) {
-                if (perf_header__push_event(pos->attr.config, event_name(pos)))
+                if (perf_header__push_event(pos->attr.config, perf_evsel__name(pos)))
                         goto out_free_fd;
         }
 
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 25249f76329d..69b1c1185159 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -69,7 +69,7 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
 
         if ((sort__has_parent || symbol_conf.use_callchain)
             && sample->callchain) {
-                err = machine__resolve_callchain(machine, evsel, al->thread,
+                err = machine__resolve_callchain(machine, al->thread,
                                                  sample->callchain, &parent);
                 if (err)
                         return err;
@@ -140,7 +140,7 @@ static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
         struct hist_entry *he;
 
         if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
-                err = machine__resolve_callchain(machine, evsel, al->thread,
+                err = machine__resolve_callchain(machine, al->thread,
                                                  sample->callchain, &parent);
                 if (err)
                         return err;
@@ -230,7 +230,7 @@ static int process_read_event(struct perf_tool *tool,
         struct perf_report *rep = container_of(tool, struct perf_report, tool);
 
         if (rep->show_threads) {
-                const char *name = evsel ? event_name(evsel) : "unknown";
+                const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
                 perf_read_values_add_value(&rep->show_threads_values,
                                            event->read.pid, event->read.tid,
                                            event->read.id,
@@ -239,17 +239,18 @@ static int process_read_event(struct perf_tool *tool,
         }
 
         dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
-                    evsel ? event_name(evsel) : "FAIL",
+                    evsel ? perf_evsel__name(evsel) : "FAIL",
                     event->read.value);
 
         return 0;
 }
 
+/* For pipe mode, sample_type is not currently set */
 static int perf_report__setup_sample_type(struct perf_report *rep)
 {
         struct perf_session *self = rep->session;
 
-        if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
+        if (!self->fd_pipe && !(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
                 if (sort__has_parent) {
                         ui__error("Selected --sort parent, but no "
                                     "callchain data. Did you call "
@@ -272,7 +273,8 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
         }
 
         if (sort__branch_mode == 1) {
-                if (!(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
+                if (!self->fd_pipe &&
+                    !(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
                         ui__error("Selected -b but no branch data. "
                                   "Did you call perf record without -b?\n");
                         return -1;
@@ -314,7 +316,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
 
         list_for_each_entry(pos, &evlist->entries, node) {
                 struct hists *hists = &pos->hists;
-                const char *evname = event_name(pos);
+                const char *evname = perf_evsel__name(pos);
 
                 hists__fprintf_nr_sample_events(hists, evname, stdout);
                 hists__fprintf(hists, NULL, false, true, 0, 0, stdout);
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index b125e07eb399..7a9ad2b1ee76 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -43,6 +43,11 @@ static u64			sleep_measurement_overhead;
 
 static unsigned long            nr_tasks;
 
+struct perf_sched {
+        struct perf_tool    tool;
+        struct perf_session *session;
+};
+
 struct sched_atom;
 
 struct task_desc {
@@ -1597,11 +1602,13 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool,
                                                  struct perf_evsel *evsel,
                                                  struct machine *machine)
 {
+        struct perf_sched *sched = container_of(tool, struct perf_sched, tool);
+        struct pevent *pevent = sched->session->pevent;
         struct thread *thread = machine__findnew_thread(machine, sample->pid);
 
         if (thread == NULL) {
                 pr_debug("problem processing %s event, skipping it.\n",
-                         evsel->name);
+                         perf_evsel__name(evsel));
                 return -1;
         }
 
@@ -1612,7 +1619,8 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool,
                 tracepoint_handler f = evsel->handler.func;
 
                 if (evsel->handler.data == NULL)
-                        evsel->handler.data = trace_find_event(evsel->attr.config);
+                        evsel->handler.data = pevent_find_event(pevent,
+                                                          evsel->attr.config);
 
                 f(tool, evsel->handler.data, sample, machine, thread);
         }
@@ -1620,12 +1628,14 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool,
         return 0;
 }
 
-static struct perf_tool perf_sched = {
-        .sample                 = perf_sched__process_tracepoint_sample,
-        .comm                   = perf_event__process_comm,
-        .lost                   = perf_event__process_lost,
-        .fork                   = perf_event__process_task,
-        .ordered_samples        = true,
+static struct perf_sched perf_sched = {
+        .tool = {
+                .sample          = perf_sched__process_tracepoint_sample,
+                .comm            = perf_event__process_comm,
+                .lost            = perf_event__process_lost,
+                .fork            = perf_event__process_task,
+                .ordered_samples = true,
+        },
 };
 
 static void read_events(bool destroy, struct perf_session **psession)
@@ -1640,16 +1650,20 @@ static void read_events(bool destroy, struct perf_session **psession)
                 { "sched:sched_process_exit", process_sched_exit_event, },
                 { "sched:sched_migrate_task", process_sched_migrate_task_event, },
         };
-        struct perf_session *session = perf_session__new(input_name, O_RDONLY,
-                                                         0, false, &perf_sched);
+        struct perf_session *session;
+
+        session = perf_session__new(input_name, O_RDONLY, 0, false,
+                                    &perf_sched.tool);
         if (session == NULL)
                 die("No Memory");
 
-        err = perf_evlist__set_tracepoints_handlers_array(session->evlist, handlers);
+        perf_sched.session = session;
+
+        err = perf_session__set_tracepoints_handlers(session, handlers);
         assert(err == 0);
 
         if (perf_session__has_traces(session, "record -R")) {
-                err = perf_session__process_events(session, &perf_sched);
+                err = perf_session__process_events(session, &perf_sched.tool);
                 if (err)
                         die("Failed to process events, error %d", err);
 
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 8e395a538eb9..1e60ab70b2b1 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -28,6 +28,11 @@ static bool			system_wide;
 static const char               *cpu_list;
 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 
+struct perf_script {
+        struct perf_tool    tool;
+        struct perf_session *session;
+};
+
 enum perf_output_field {
         PERF_OUTPUT_COMM            = 1U << 0,
         PERF_OUTPUT_TID             = 1U << 1,
@@ -137,10 +142,11 @@ static const char *output_field2str(enum perf_output_field field)
 
 #define PRINT_FIELD(x)  (output[attr->type].fields & PERF_OUTPUT_##x)
 
-static int perf_event_attr__check_stype(struct perf_event_attr *attr,
-                                  u64 sample_type, const char *sample_msg,
-                                  enum perf_output_field field)
+static int perf_evsel__check_stype(struct perf_evsel *evsel,
+                                   u64 sample_type, const char *sample_msg,
+                                   enum perf_output_field field)
 {
+        struct perf_event_attr *attr = &evsel->attr;
         int type = attr->type;
         const char *evname;
 
@@ -148,7 +154,7 @@ static int perf_event_attr__check_stype(struct perf_event_attr *attr,
                 return 0;
 
         if (output[type].user_set) {
-                evname = __event_name(attr->type, attr->config);
+                evname = perf_evsel__name(evsel);
                 pr_err("Samples for '%s' event do not have %s attribute set. "
                        "Cannot print '%s' field.\n",
                        evname, sample_msg, output_field2str(field));
@@ -157,7 +163,7 @@ static int perf_event_attr__check_stype(struct perf_event_attr *attr,
 
         /* user did not ask for it explicitly so remove from the default list */
         output[type].fields &= ~field;
-        evname = __event_name(attr->type, attr->config);
+        evname = perf_evsel__name(evsel);
         pr_debug("Samples for '%s' event do not have %s attribute set. "
                  "Skipping '%s' field.\n",
                  evname, sample_msg, output_field2str(field));
@@ -175,8 +181,8 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
                 return -EINVAL;
 
         if (PRINT_FIELD(IP)) {
-                if (perf_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP",
-                                           PERF_OUTPUT_IP))
+                if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP",
+                                            PERF_OUTPUT_IP))
                         return -EINVAL;
 
                 if (!no_callchain &&
@@ -185,8 +191,8 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
         }
 
         if (PRINT_FIELD(ADDR) &&
-                perf_event_attr__check_stype(attr, PERF_SAMPLE_ADDR, "ADDR",
-                                       PERF_OUTPUT_ADDR))
+                perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR",
+                                        PERF_OUTPUT_ADDR))
                 return -EINVAL;
 
         if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
@@ -208,18 +214,18 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
         }
 
         if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
-                perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID",
-                                       PERF_OUTPUT_TID|PERF_OUTPUT_PID))
+                perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID",
+                                        PERF_OUTPUT_TID|PERF_OUTPUT_PID))
                 return -EINVAL;
 
         if (PRINT_FIELD(TIME) &&
-                perf_event_attr__check_stype(attr, PERF_SAMPLE_TIME, "TIME",
-                                       PERF_OUTPUT_TIME))
+                perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME",
+                                        PERF_OUTPUT_TIME))
                 return -EINVAL;
 
         if (PRINT_FIELD(CPU) &&
-                perf_event_attr__check_stype(attr, PERF_SAMPLE_CPU, "CPU",
-                                       PERF_OUTPUT_CPU))
+                perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU",
+                                        PERF_OUTPUT_CPU))
                 return -EINVAL;
 
         return 0;
@@ -256,11 +262,13 @@ static int perf_session__check_output_opt(struct perf_session *session)
         return 0;
 }
 
-static void print_sample_start(struct perf_sample *sample,
+static void print_sample_start(struct pevent *pevent,
+                               struct perf_sample *sample,
                                struct thread *thread,
-                               struct perf_event_attr *attr)
+                               struct perf_evsel *evsel)
 {
         int type;
+        struct perf_event_attr *attr = &evsel->attr;
         struct event_format *event;
         const char *evname = NULL;
         unsigned long secs;
@@ -300,12 +308,18 @@ static void print_sample_start(struct perf_sample *sample,
 
         if (PRINT_FIELD(EVNAME)) {
                 if (attr->type == PERF_TYPE_TRACEPOINT) {
-                        type = trace_parse_common_type(sample->raw_data);
-                        event = trace_find_event(type);
+                        /*
+                         * XXX Do we really need this here?
+                         * perf_evlist__set_tracepoint_names should have done
+                         * this already
+                         */
+                        type = trace_parse_common_type(pevent,
+                                                       sample->raw_data);
+                        event = pevent_find_event(pevent, type);
                         if (event)
                                 evname = event->name;
                 } else
-                        evname = __event_name(attr->type, attr->config);
+                        evname = perf_evsel__name(evsel);
 
                 printf("%s: ", evname ? evname : "[unknown]");
         }
@@ -387,7 +401,7 @@ static void print_sample_bts(union perf_event *event,
                         printf(" ");
                 else
                         printf("\n");
-                perf_event__print_ip(event, sample, machine, evsel,
+                perf_event__print_ip(event, sample, machine,
                                      PRINT_FIELD(SYM), PRINT_FIELD(DSO),
                                      PRINT_FIELD(SYMOFFSET));
         }
@@ -402,6 +416,7 @@ static void print_sample_bts(union perf_event *event,
 }
 
 static void process_event(union perf_event *event __unused,
+                          struct pevent *pevent,
                           struct perf_sample *sample,
                           struct perf_evsel *evsel,
                           struct machine *machine,
@@ -412,7 +427,7 @@ static void process_event(union perf_event *event __unused,
         if (output[attr->type].fields == 0)
                 return;
 
-        print_sample_start(sample, thread, attr);
+        print_sample_start(pevent, sample, thread, evsel);
 
         if (is_bts_event(attr)) {
                 print_sample_bts(event, sample, evsel, machine, thread);
@@ -420,7 +435,7 @@ static void process_event(union perf_event *event __unused,
         }
 
         if (PRINT_FIELD(TRACE))
-                print_trace_event(sample->cpu, sample->raw_data,
+                print_trace_event(pevent, sample->cpu, sample->raw_data,
                                   sample->raw_size);
 
         if (PRINT_FIELD(ADDR))
@@ -431,7 +446,7 @@ static void process_event(union perf_event *event __unused,
                         printf(" ");
                 else
                         printf("\n");
-                perf_event__print_ip(event, sample, machine, evsel,
+                perf_event__print_ip(event, sample, machine,
                                      PRINT_FIELD(SYM), PRINT_FIELD(DSO),
                                      PRINT_FIELD(SYMOFFSET));
         }
@@ -451,7 +466,8 @@ static int default_stop_script(void)
         return 0;
 }
 
-static int default_generate_script(const char *outfile __unused)
+static int default_generate_script(struct pevent *pevent __unused,
+                                   const char *outfile __unused)
 {
         return 0;
 }
@@ -489,6 +505,7 @@ static int process_sample_event(struct perf_tool *tool __used,
                                 struct machine *machine)
 {
         struct addr_location al;
+        struct perf_script *scr = container_of(tool, struct perf_script, tool);
         struct thread *thread = machine__findnew_thread(machine, event->ip.tid);
 
         if (thread == NULL) {
@@ -520,24 +537,27 @@ static int process_sample_event(struct perf_tool *tool __used,
         if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
                 return 0;
 
-        scripting_ops->process_event(event, sample, evsel, machine, thread);
+        scripting_ops->process_event(event, scr->session->pevent,
+                                     sample, evsel, machine, thread);
 
         evsel->hists.stats.total_period += sample->period;
         return 0;
 }
 
-static struct perf_tool perf_script = {
-        .sample          = process_sample_event,
-        .mmap            = perf_event__process_mmap,
-        .comm            = perf_event__process_comm,
-        .exit            = perf_event__process_task,
-        .fork            = perf_event__process_task,
-        .attr            = perf_event__process_attr,
-        .event_type      = perf_event__process_event_type,
-        .tracing_data    = perf_event__process_tracing_data,
-        .build_id        = perf_event__process_build_id,
-        .ordered_samples = true,
-        .ordering_requires_timestamps = true,
+static struct perf_script perf_script = {
+        .tool = {
+                .sample          = process_sample_event,
+                .mmap            = perf_event__process_mmap,
+                .comm            = perf_event__process_comm,
+                .exit            = perf_event__process_task,
+                .fork            = perf_event__process_task,
+                .attr            = perf_event__process_attr,
+                .event_type      = perf_event__process_event_type,
+                .tracing_data    = perf_event__process_tracing_data,
+                .build_id        = perf_event__process_build_id,
+                .ordered_samples = true,
+                .ordering_requires_timestamps = true,
+        },
 };
 
 extern volatile int session_done;
@@ -553,7 +573,7 @@ static int __cmd_script(struct perf_session *session)
 
         signal(SIGINT, sig_handler);
 
-        ret = perf_session__process_events(session, &perf_script);
+        ret = perf_session__process_events(session, &perf_script.tool);
 
         if (debug_mode)
                 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
@@ -1335,10 +1355,13 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
         if (!script_name)
                 setup_pager();
 
-        session = perf_session__new(input_name, O_RDONLY, 0, false, &perf_script);
+        session = perf_session__new(input_name, O_RDONLY, 0, false,
+                                    &perf_script.tool);
         if (session == NULL)
                 return -ENOMEM;
 
+        perf_script.session = session;
+
         if (cpu_list) {
                 if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap))
                         return -1;
@@ -1384,7 +1407,8 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
                         return -1;
                 }
 
-                err = scripting_ops->generate_script("perf-script");
+                err = scripting_ops->generate_script(session->pevent,
+                                                     "perf-script");
                 goto out;
         }
 
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 07b5c7703dd1..861f0aec77ae 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -391,7 +391,7 @@ static int read_counter_aggr(struct perf_evsel *counter)
 
         if (verbose) {
                 fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
-                        event_name(counter), count[0], count[1], count[2]);
+                        perf_evsel__name(counter), count[0], count[1], count[2]);
         }
 
         /*
@@ -496,7 +496,7 @@ static int run_perf_stat(int argc __used, const char **argv)
                             errno == ENXIO) {
                                 if (verbose)
                                         ui__warning("%s event is not supported by the kernel.\n",
-                                                    event_name(counter));
+                                                    perf_evsel__name(counter));
                                 counter->supported = false;
                                 continue;
                         }
@@ -594,7 +594,7 @@ static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg)
                         csv_output ? 0 : -4,
                         evsel_list->cpus->map[cpu], csv_sep);
 
-        fprintf(output, fmt, cpustr, msecs, csv_sep, event_name(evsel));
+        fprintf(output, fmt, cpustr, msecs, csv_sep, perf_evsel__name(evsel));
 
         if (evsel->cgrp)
                 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
@@ -792,7 +792,7 @@ static void abs_printout(int cpu, struct perf_evsel *evsel, double avg)
         else
                 cpu = 0;
 
-        fprintf(output, fmt, cpustr, avg, csv_sep, event_name(evsel));
+        fprintf(output, fmt, cpustr, avg, csv_sep, perf_evsel__name(evsel));
 
         if (evsel->cgrp)
                 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
@@ -908,7 +908,7 @@ static void print_counter_aggr(struct perf_evsel *counter)
                         counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
                         csv_sep,
                         csv_output ? 0 : -24,
-                        event_name(counter));
+                        perf_evsel__name(counter));
 
                 if (counter->cgrp)
                         fprintf(output, "%s%s", csv_sep, counter->cgrp->name);
@@ -961,7 +961,7 @@ static void print_counter(struct perf_evsel *counter)
                                 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
                                 csv_sep,
                                 csv_output ? 0 : -24,
-                                event_name(counter));
+                                perf_evsel__name(counter));
 
                         if (counter->cgrp)
                                 fprintf(output, "%s%s",
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index 5a8727c08757..5ce30305462b 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -583,7 +583,7 @@ static int test__basic_mmap(void)
                 if (nr_events[evsel->idx] != expected_nr_events[evsel->idx]) {
                         pr_debug("expected %d %s events, got %d\n",
                                  expected_nr_events[evsel->idx],
-                                 event_name(evsel), nr_events[evsel->idx]);
+                                 perf_evsel__name(evsel), nr_events[evsel->idx]);
                         goto out_munmap;
                 }
         }
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 6bb0277b7dfe..e3cab5f088f8 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -245,7 +245,7 @@ static void perf_top__show_details(struct perf_top *top)
         if (notes->src == NULL)
                 goto out_unlock;
 
-        printf("Showing %s for %s\n", event_name(top->sym_evsel), symbol->name);
+        printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name);
         printf("  Events  Pcnt (>=%d%%)\n", top->sym_pcnt_filter);
 
         more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx,
@@ -408,7 +408,7 @@ static void perf_top__print_mapped_keys(struct perf_top *top)
         fprintf(stdout, "\t[e]     display entries (lines).           \t(%d)\n", top->print_entries);
 
         if (top->evlist->nr_entries > 1)
-                fprintf(stdout, "\t[E]     active event counter.              \t(%s)\n", event_name(top->sym_evsel));
+                fprintf(stdout, "\t[E]     active event counter.              \t(%s)\n", perf_evsel__name(top->sym_evsel));
 
         fprintf(stdout, "\t[f]     profile display filter (count).    \t(%d)\n", top->count_filter);
 
@@ -503,13 +503,13 @@ static void perf_top__handle_keypress(struct perf_top *top, int c)
                                 fprintf(stderr, "\nAvailable events:");
 
                                 list_for_each_entry(top->sym_evsel, &top->evlist->entries, node)
-                                        fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, event_name(top->sym_evsel));
+                                        fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel));
 
                                 prompt_integer(&counter, "Enter details event counter");
 
                                 if (counter >= top->evlist->nr_entries) {
                                         top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node);
-                                        fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top->sym_evsel));
+                                        fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel));
                                         sleep(1);
                                         break;
                                 }
@@ -774,7 +774,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
 
                 if ((sort__has_parent || symbol_conf.use_callchain) &&
                     sample->callchain) {
-                        err = machine__resolve_callchain(machine, evsel, al.thread,
+                        err = machine__resolve_callchain(machine, al.thread,
                                                          sample->callchain, &parent);
                         if (err)
                                 return;
@@ -960,7 +960,7 @@ try_again:
 
                         if (err == ENOENT) {
                                 ui__error("The %s event is not supported.\n",
-                                            event_name(counter));
+                                          perf_evsel__name(counter));
                                 goto out_err;
                         } else if (err == EMFILE) {
                                 ui__error("Too many events are opened.\n"
diff --git a/tools/perf/config/feature-tests.mak b/tools/perf/config/feature-tests.mak
index d9084e03ce56..6c18785a6417 100644
--- a/tools/perf/config/feature-tests.mak
+++ b/tools/perf/config/feature-tests.mak
@@ -78,6 +78,19 @@ int main(int argc, char *argv[])
         return 0;
 }
 endef
+
+define SOURCE_GTK2_INFOBAR
+#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
+#include <gtk/gtk.h>
+#pragma GCC diagnostic error \"-Wstrict-prototypes\"
+
+int main(void)
+{
+        gtk_info_bar_new();
+
+        return 0;
+}
+endef
 endif
 
 ifndef NO_LIBPERL
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 34b1c46eaf42..67a2703e666a 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -814,7 +814,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
 {
         struct disasm_line *pos, *n;
         struct annotation *notes;
-        const size_t size = symbol__size(sym);
+        size_t size;
         struct map_symbol ms = {
                 .map = map,
                 .sym = sym,
@@ -834,6 +834,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
         if (sym == NULL)
                 return -1;
 
+        size = symbol__size(sym);
+
         if (map->dso->annotate_warned)
                 return -1;
 
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 53f6697d014e..482f0517b61e 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -23,6 +23,7 @@ struct hist_browser {
         struct hists        *hists;
         struct hist_entry   *he_selection;
         struct map_symbol   *selection;
+        int                  print_seq;
         bool                 has_symbols;
 };
 
@@ -800,6 +801,196 @@ do_offset:
         }
 }
 
+static int hist_browser__fprintf_callchain_node_rb_tree(struct hist_browser *browser,
+                                                        struct callchain_node *chain_node,
+                                                        u64 total, int level,
+                                                        FILE *fp)
+{
+        struct rb_node *node;
+        int offset = level * LEVEL_OFFSET_STEP;
+        u64 new_total, remaining;
+        int printed = 0;
+
+        if (callchain_param.mode == CHAIN_GRAPH_REL)
+                new_total = chain_node->children_hit;
+        else
+                new_total = total;
+
+        remaining = new_total;
+        node = rb_first(&chain_node->rb_root);
+        while (node) {
+                struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
+                struct rb_node *next = rb_next(node);
+                u64 cumul = callchain_cumul_hits(child);
+                struct callchain_list *chain;
+                char folded_sign = ' ';
+                int first = true;
+                int extra_offset = 0;
+
+                remaining -= cumul;
+
+                list_for_each_entry(chain, &child->val, list) {
+                        char ipstr[BITS_PER_LONG / 4 + 1], *alloc_str;
+                        const char *str;
+                        bool was_first = first;
+
+                        if (first)
+                                first = false;
+                        else
+                                extra_offset = LEVEL_OFFSET_STEP;
+
+                        folded_sign = callchain_list__folded(chain);
+
+                        alloc_str = NULL;
+                        str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
+                        if (was_first) {
+                                double percent = cumul * 100.0 / new_total;
+
+                                if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
+                                        str = "Not enough memory!";
+                                else
+                                        str = alloc_str;
+                        }
+
+                        printed += fprintf(fp, "%*s%c %s\n", offset + extra_offset, " ", folded_sign, str);
+                        free(alloc_str);
+                        if (folded_sign == '+')
+                                break;
+                }
+
+                if (folded_sign == '-') {
+                        const int new_level = level + (extra_offset ? 2 : 1);
+                        printed += hist_browser__fprintf_callchain_node_rb_tree(browser, child, new_total,
+                                                                                new_level, fp);
+                }
+
+                node = next;
+        }
+
+        return printed;
+}
+
+static int hist_browser__fprintf_callchain_node(struct hist_browser *browser,
+                                                struct callchain_node *node,
+                                                int level, FILE *fp)
+{
+        struct callchain_list *chain;
+        int offset = level * LEVEL_OFFSET_STEP;
+        char folded_sign = ' ';
+        int printed = 0;
+
+        list_for_each_entry(chain, &node->val, list) {
+                char ipstr[BITS_PER_LONG / 4 + 1], *s;
+
+                folded_sign = callchain_list__folded(chain);
+                s = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
+                printed += fprintf(fp, "%*s%c %s\n", offset, " ", folded_sign, s);
+        }
+
+        if (folded_sign == '-')
+                printed += hist_browser__fprintf_callchain_node_rb_tree(browser, node,
+                                                                        browser->hists->stats.total_period,
+                                                                        level + 1,  fp);
+        return printed;
+}
+
+static int hist_browser__fprintf_callchain(struct hist_browser *browser,
+                                           struct rb_root *chain, int level, FILE *fp)
+{
+        struct rb_node *nd;
+        int printed = 0;
+
+        for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
+                struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
+
+                printed += hist_browser__fprintf_callchain_node(browser, node, level, fp);
+        }
+
+        return printed;
+}
+
+static int hist_browser__fprintf_entry(struct hist_browser *browser,
+                                       struct hist_entry *he, FILE *fp)
+{
+        char s[8192];
+        double percent;
+        int printed = 0;
+        char folded_sign = ' ';
+
+        if (symbol_conf.use_callchain)
+                folded_sign = hist_entry__folded(he);
+
+        hist_entry__snprintf(he, s, sizeof(s), browser->hists);
+        percent = (he->period * 100.0) / browser->hists->stats.total_period;
+
+        if (symbol_conf.use_callchain)
+                printed += fprintf(fp, "%c ", folded_sign);
+
+        printed += fprintf(fp, " %5.2f%%", percent);
+
+        if (symbol_conf.show_nr_samples)
+                printed += fprintf(fp, " %11u", he->nr_events);
+
+        if (symbol_conf.show_total_period)
+                printed += fprintf(fp, " %12" PRIu64, he->period);
+
+        printed += fprintf(fp, "%s\n", rtrim(s));
+
+        if (folded_sign == '-')
+                printed += hist_browser__fprintf_callchain(browser, &he->sorted_chain, 1, fp);
+
+        return printed;
+}
+
+static int hist_browser__fprintf(struct hist_browser *browser, FILE *fp)
+{
+        struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries));
+        int printed = 0;
+
+        while (nd) {
+                struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+
+                printed += hist_browser__fprintf_entry(browser, h, fp);
+                nd = hists__filter_entries(rb_next(nd));
+        }
+
+        return printed;
+}
+
+static int hist_browser__dump(struct hist_browser *browser)
+{
+        char filename[64];
+        FILE *fp;
+
+        while (1) {
+                scnprintf(filename, sizeof(filename), "perf.hist.%d", browser->print_seq);
+                if (access(filename, F_OK))
+                        break;
+                /*
+                 * XXX: Just an arbitrary lazy upper limit
+                 */
+                if (++browser->print_seq == 8192) {
+                        ui_helpline__fpush("Too many perf.hist.N files, nothing written!");
+                        return -1;
+                }
+        }
+
+        fp = fopen(filename, "w");
+        if (fp == NULL) {
+                char bf[64];
+                strerror_r(errno, bf, sizeof(bf));
+                ui_helpline__fpush("Couldn't write to %s: %s", filename, bf);
+                return -1;
+        }
+
+        ++browser->print_seq;
+        hist_browser__fprintf(browser, fp);
+        fclose(fp);
+        ui_helpline__fpush("%s written!", filename);
+
+        return 0;
+}
+
 static struct hist_browser *hist_browser__new(struct hists *hists)
 {
         struct hist_browser *browser = zalloc(sizeof(*browser));
@@ -937,6 +1128,9 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
                             browser->selection->map->dso->annotate_warned)
                                 continue;
                         goto do_annotate;
+                case 'P':
+                        hist_browser__dump(browser);
+                        continue;
                 case 'd':
                         goto zoom_dso;
                 case 't':
@@ -969,6 +1163,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
                                         "E             Expand all callchains\n"
                                         "d             Zoom into current DSO\n"
                                         "t             Zoom into current Thread\n"
+                                        "P             Print histograms to perf.hist.N\n"
                                         "/             Filter symbol by name");
                         continue;
                 case K_ENTER:
@@ -1172,7 +1367,7 @@ static void perf_evsel_menu__write(struct ui_browser *browser,
         struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node);
         bool current_entry = ui_browser__is_current_entry(browser, row);
         unsigned long nr_events = evsel->hists.stats.nr_events[PERF_RECORD_SAMPLE];
-        const char *ev_name = event_name(evsel);
+        const char *ev_name = perf_evsel__name(evsel);
         char bf[256], unit;
         const char *warn = " ";
         size_t printed;
@@ -1240,7 +1435,7 @@ browse_hists:
                          */
                         if (timer)
                                 timer(arg);
-                        ev_name = event_name(pos);
+                        ev_name = perf_evsel__name(pos);
                         key = perf_evsel__hists_browse(pos, nr_events, help,
                                                        ev_name, true, timer,
                                                        arg, delay_secs);
@@ -1309,17 +1504,11 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
         ui_helpline__push("Press ESC to exit");
 
         list_for_each_entry(pos, &evlist->entries, node) {
-                const char *ev_name = event_name(pos);
+                const char *ev_name = perf_evsel__name(pos);
                 size_t line_len = strlen(ev_name) + 7;
 
                 if (menu.b.width < line_len)
                         menu.b.width = line_len;
-                /*
-                 * Cache the evsel name, tracepoints have a _high_ cost per
-                 * event_name() call.
-                 */
-                if (pos->name == NULL)
-                        pos->name = strdup(ev_name);
         }
 
         return perf_evsel_menu__run(&menu, evlist->nr_entries, help, timer,
@@ -1330,11 +1519,10 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
                                   void(*timer)(void *arg), void *arg,
                                   int delay_secs)
 {
-
         if (evlist->nr_entries == 1) {
                 struct perf_evsel *first = list_entry(evlist->entries.next,
                                                       struct perf_evsel, node);
-                const char *ev_name = event_name(first);
+                const char *ev_name = perf_evsel__name(first);
                 return perf_evsel__hists_browse(first, evlist->nr_entries, help,
                                                 ev_name, false, timer, arg,
                                                 delay_secs);
diff --git a/tools/perf/ui/gtk/browser.c b/tools/perf/ui/gtk/browser.c
index 0656c381a89c..ec12e0b4ded6 100644
--- a/tools/perf/ui/gtk/browser.c
+++ b/tools/perf/ui/gtk/browser.c
@@ -11,8 +11,8 @@
 
 static void perf_gtk__signal(int sig)
 {
+        perf_gtk__exit(false);
         psignal(sig, "perf");
-        gtk_main_quit();
 }
 
 static void perf_gtk__resize_window(GtkWidget *window)
@@ -122,13 +122,59 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists)
         gtk_container_add(GTK_CONTAINER(window), view);
 }
 
+#ifdef HAVE_GTK_INFO_BAR
+static GtkWidget *perf_gtk__setup_info_bar(void)
+{
+        GtkWidget *info_bar;
+        GtkWidget *label;
+        GtkWidget *content_area;
+
+        info_bar = gtk_info_bar_new();
+        gtk_widget_set_no_show_all(info_bar, TRUE);
+
+        label = gtk_label_new("");
+        gtk_widget_show(label);
+
+        content_area = gtk_info_bar_get_content_area(GTK_INFO_BAR(info_bar));
+        gtk_container_add(GTK_CONTAINER(content_area), label);
+
+        gtk_info_bar_add_button(GTK_INFO_BAR(info_bar), GTK_STOCK_OK,
+                                GTK_RESPONSE_OK);
+        g_signal_connect(info_bar, "response",
+                         G_CALLBACK(gtk_widget_hide), NULL);
+
+        pgctx->info_bar = info_bar;
+        pgctx->message_label = label;
+
+        return info_bar;
+}
+#endif
+
+static GtkWidget *perf_gtk__setup_statusbar(void)
+{
+        GtkWidget *stbar;
+        unsigned ctxid;
+
+        stbar = gtk_statusbar_new();
+
+        ctxid = gtk_statusbar_get_context_id(GTK_STATUSBAR(stbar),
+                                             "perf report");
+        pgctx->statbar = stbar;
+        pgctx->statbar_ctx_id = ctxid;
+
+        return stbar;
+}
+
 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
                                   const char *help __used,
                                   void (*timer) (void *arg)__used,
                                   void *arg __used, int delay_secs __used)
 {
         struct perf_evsel *pos;
+        GtkWidget *vbox;
         GtkWidget *notebook;
+        GtkWidget *info_bar;
+        GtkWidget *statbar;
         GtkWidget *window;
 
         signal(SIGSEGV, perf_gtk__signal);
@@ -143,11 +189,17 @@ int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
 
         g_signal_connect(window, "delete_event", gtk_main_quit, NULL);
 
+        pgctx = perf_gtk__activate_context(window);
+        if (!pgctx)
+                return -1;
+
+        vbox = gtk_vbox_new(FALSE, 0);
+
         notebook = gtk_notebook_new();
 
         list_for_each_entry(pos, &evlist->entries, node) {
                 struct hists *hists = &pos->hists;
-                const char *evname = event_name(pos);
+                const char *evname = perf_evsel__name(pos);
                 GtkWidget *scrolled_window;
                 GtkWidget *tab_label;
 
@@ -164,7 +216,16 @@ int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
                 gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window, tab_label);
         }
 
-        gtk_container_add(GTK_CONTAINER(window), notebook);
+        gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);
+
+        info_bar = perf_gtk__setup_info_bar();
+        if (info_bar)
+                gtk_box_pack_start(GTK_BOX(vbox), info_bar, FALSE, FALSE, 0);
+
+        statbar = perf_gtk__setup_statusbar();
+        gtk_box_pack_start(GTK_BOX(vbox), statbar, FALSE, FALSE, 0);
+
+        gtk_container_add(GTK_CONTAINER(window), vbox);
 
         gtk_widget_show_all(window);
 
@@ -174,5 +235,7 @@ int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
 
         gtk_main();
 
+        perf_gtk__deactivate_context(&pgctx);
+
         return 0;
 }
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index 75177ee04032..a4d0f2b4a2dc 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -1,8 +1,39 @@
 #ifndef _PERF_GTK_H_
 #define _PERF_GTK_H_ 1
 
+#include <stdbool.h>
+
 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
 #include <gtk/gtk.h>
 #pragma GCC diagnostic error "-Wstrict-prototypes"
 
+
+struct perf_gtk_context {
+        GtkWidget *main_window;
+
+#ifdef HAVE_GTK_INFO_BAR
+        GtkWidget *info_bar;
+        GtkWidget *message_label;
+#endif
+        GtkWidget *statbar;
+        guint statbar_ctx_id;
+};
+
+extern struct perf_gtk_context *pgctx;
+
+static inline bool perf_gtk__is_active_context(struct perf_gtk_context *ctx)
+{
+        return ctx && ctx->main_window;
+}
+
+struct perf_gtk_context *perf_gtk__activate_context(GtkWidget *window);
+int perf_gtk__deactivate_context(struct perf_gtk_context **ctx);
+
+#ifndef HAVE_GTK_INFO_BAR
+static inline GtkWidget *perf_gtk__setup_info_bar(void)
+{
+        return NULL;
+}
+#endif
+
 #endif /* _PERF_GTK_H_ */
diff --git a/tools/perf/ui/gtk/setup.c b/tools/perf/ui/gtk/setup.c
index 829529957766..92879ce61e2f 100644
--- a/tools/perf/ui/gtk/setup.c
+++ b/tools/perf/ui/gtk/setup.c
@@ -1,12 +1,17 @@
 #include "gtk.h"
 #include "../../util/cache.h"
+#include "../../util/debug.h"
+
+extern struct perf_error_ops perf_gtk_eops;
 
 int perf_gtk__init(void)
 {
+        perf_error__register(&perf_gtk_eops);
         return gtk_init_check(NULL, NULL) ? 0 : -1;
 }
 
 void perf_gtk__exit(bool wait_for_ok __used)
 {
+        perf_error__unregister(&perf_gtk_eops);
         gtk_main_quit();
 }
diff --git a/tools/perf/ui/gtk/util.c b/tools/perf/ui/gtk/util.c
new file mode 100644
index 000000000000..0ead373c0dfb
--- /dev/null
+++ b/tools/perf/ui/gtk/util.c
@@ -0,0 +1,129 @@
+#include "../util.h"
+#include "../../util/debug.h"
+#include "gtk.h"
+
+#include <string.h>
+
+
+struct perf_gtk_context *pgctx;
+
+struct perf_gtk_context *perf_gtk__activate_context(GtkWidget *window)
+{
+        struct perf_gtk_context *ctx;
+
+        ctx = malloc(sizeof(*pgctx));
+        if (ctx)
+                ctx->main_window = window;
+
+        return ctx;
+}
+
+int perf_gtk__deactivate_context(struct perf_gtk_context **ctx)
+{
+        if (!perf_gtk__is_active_context(*ctx))
+                return -1;
+
+        free(*ctx);
+        *ctx = NULL;
+        return 0;
+}
+
+static int perf_gtk__error(const char *format, va_list args)
+{
+        char *msg;
+        GtkWidget *dialog;
+
+        if (!perf_gtk__is_active_context(pgctx) ||
+            vasprintf(&msg, format, args) < 0) {
+                fprintf(stderr, "Error:\n");
+                vfprintf(stderr, format, args);
+                fprintf(stderr, "\n");
+                return -1;
+        }
+
+        dialog = gtk_message_dialog_new_with_markup(GTK_WINDOW(pgctx->main_window),
+                                        GTK_DIALOG_DESTROY_WITH_PARENT,
+                                        GTK_MESSAGE_ERROR,
+                                        GTK_BUTTONS_CLOSE,
+                                        "<b>Error</b>\n\n%s", msg);
+        gtk_dialog_run(GTK_DIALOG(dialog));
+
+        gtk_widget_destroy(dialog);
+        free(msg);
+        return 0;
+}
+
+#ifdef HAVE_GTK_INFO_BAR
+static int perf_gtk__warning_info_bar(const char *format, va_list args)
+{
+        char *msg;
+
+        if (!perf_gtk__is_active_context(pgctx) ||
+            vasprintf(&msg, format, args) < 0) {
+                fprintf(stderr, "Warning:\n");
+                vfprintf(stderr, format, args);
+                fprintf(stderr, "\n");
+                return -1;
+        }
+
+        gtk_label_set_text(GTK_LABEL(pgctx->message_label), msg);
+        gtk_info_bar_set_message_type(GTK_INFO_BAR(pgctx->info_bar),
+                                      GTK_MESSAGE_WARNING);
+        gtk_widget_show(pgctx->info_bar);
+
+        free(msg);
+        return 0;
+}
+#else
+static int perf_gtk__warning_statusbar(const char *format, va_list args)
+{
+        char *msg, *p;
+
+        if (!perf_gtk__is_active_context(pgctx) ||
+            vasprintf(&msg, format, args) < 0) {
+                fprintf(stderr, "Warning:\n");
+                vfprintf(stderr, format, args);
+                fprintf(stderr, "\n");
+                return -1;
+        }
+
+        gtk_statusbar_pop(GTK_STATUSBAR(pgctx->statbar),
+                          pgctx->statbar_ctx_id);
+
+        /* Only first line can be displayed */
+        p = strchr(msg, '\n');
+        if (p)
+                *p = '\0';
+
+        gtk_statusbar_push(GTK_STATUSBAR(pgctx->statbar),
+                           pgctx->statbar_ctx_id, msg);
+
+        free(msg);
+        return 0;
+}
+#endif
+
+struct perf_error_ops perf_gtk_eops = {
+        .error          = perf_gtk__error,
+#ifdef HAVE_GTK_INFO_BAR
+        .warning        = perf_gtk__warning_info_bar,
+#else
+        .warning        = perf_gtk__warning_statusbar,
+#endif
+};
+
+/*
+ * FIXME: Functions below should be implemented properly.
+ *        For now, just add stubs for NO_NEWT=1 build.
+ */
+#ifdef NO_NEWT_SUPPORT
+int ui_helpline__show_help(const char *format __used, va_list ap __used)
+{
+        return 0;
+}
+
+void ui_progress__update(u64 curr __used, u64 total __used,
+                         const char *title __used)
+{
+}
+#endif
diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c
index d33e943ac434..e813c1d17346 100644
--- a/tools/perf/ui/tui/setup.c
+++ b/tools/perf/ui/tui/setup.c
@@ -15,6 +15,8 @@ pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
 
 static volatile int ui__need_resize;
 
+extern struct perf_error_ops perf_tui_eops;
+
 void ui__refresh_dimensions(bool force)
 {
         if (force || ui__need_resize) {
@@ -122,6 +124,8 @@ int ui__init(void)
         signal(SIGINT, ui__signal);
         signal(SIGQUIT, ui__signal);
         signal(SIGTERM, ui__signal);
+
+        perf_error__register(&perf_tui_eops);
 out:
         return err;
 }
@@ -137,4 +141,6 @@ void ui__exit(bool wait_for_ok)
         SLsmg_refresh();
         SLsmg_reset_smg();
         SLang_reset_tty();
+
+        perf_error__unregister(&perf_tui_eops);
 }
diff --git a/tools/perf/ui/tui/util.c b/tools/perf/ui/tui/util.c
new file mode 100644
index 000000000000..092902e30cee
--- /dev/null
+++ b/tools/perf/ui/tui/util.c
@@ -0,0 +1,243 @@
+#include "../../util/util.h"
+#include <signal.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/ttydefaults.h>
+
+#include "../../util/cache.h"
+#include "../../util/debug.h"
+#include "../browser.h"
+#include "../keysyms.h"
+#include "../helpline.h"
+#include "../ui.h"
+#include "../util.h"
+#include "../libslang.h"
+
+static void ui_browser__argv_write(struct ui_browser *browser,
+                                   void *entry, int row)
+{
+        char **arg = entry;
+        bool current_entry = ui_browser__is_current_entry(browser, row);
+
+        ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
+                                                       HE_COLORSET_NORMAL);
+        slsmg_write_nstring(*arg, browser->width);
+}
+
+static int popup_menu__run(struct ui_browser *menu)
+{
+        int key;
+
+        if (ui_browser__show(menu, " ", "ESC: exit, ENTER|->: Select option") < 0)
+                return -1;
+
+        while (1) {
+                key = ui_browser__run(menu, 0);
+
+                switch (key) {
+                case K_RIGHT:
+                case K_ENTER:
+                        key = menu->index;
+                        break;
+                case K_LEFT:
+                case K_ESC:
+                case 'q':
+                case CTRL('c'):
+                        key = -1;
+                        break;
+                default:
+                        continue;
+                }
+
+                break;
+        }
+
+        ui_browser__hide(menu);
+        return key;
+}
+
+int ui__popup_menu(int argc, char * const argv[])
+{
+        struct ui_browser menu = {
+                .entries    = (void *)argv,
+                .refresh    = ui_browser__argv_refresh,
+                .seek       = ui_browser__argv_seek,
+                .write      = ui_browser__argv_write,
+                .nr_entries = argc,
+        };
+
+        return popup_menu__run(&menu);
+}
+
+int ui_browser__input_window(const char *title, const char *text, char *input,
+                             const char *exit_msg, int delay_secs)
+{
+        int x, y, len, key;
+        int max_len = 60, nr_lines = 0;
+        static char buf[50];
+        const char *t;
+
+        t = text;
+        while (1) {
+                const char *sep = strchr(t, '\n');
+
+                if (sep == NULL)
+                        sep = strchr(t, '\0');
+                len = sep - t;
+                if (max_len < len)
+                        max_len = len;
+                ++nr_lines;
+                if (*sep == '\0')
+                        break;
+                t = sep + 1;
+        }
+
+        max_len += 2;
+        nr_lines += 8;
+        y = SLtt_Screen_Rows / 2 - nr_lines / 2;
+        x = SLtt_Screen_Cols / 2 - max_len / 2;
+
+        SLsmg_set_color(0);
+        SLsmg_draw_box(y, x++, nr_lines, max_len);
+        if (title) {
+                SLsmg_gotorc(y, x + 1);
+                SLsmg_write_string((char *)title);
+        }
+        SLsmg_gotorc(++y, x);
+        nr_lines -= 7;
+        max_len -= 2;
+        SLsmg_write_wrapped_string((unsigned char *)text, y, x,
+                                   nr_lines, max_len, 1);
+        y += nr_lines;
+        len = 5;
+        while (len--) {
+                SLsmg_gotorc(y + len - 1, x);
+                SLsmg_write_nstring((char *)" ", max_len);
+        }
+        SLsmg_draw_box(y++, x + 1, 3, max_len - 2);
+
+        SLsmg_gotorc(y + 3, x);
+        SLsmg_write_nstring((char *)exit_msg, max_len);
+        SLsmg_refresh();
+
+        x += 2;
+        len = 0;
+        key = ui__getch(delay_secs);
+        while (key != K_TIMER && key != K_ENTER && key != K_ESC) {
+                if (key == K_BKSPC) {
+                        if (len == 0)
+                                goto next_key;
+                        SLsmg_gotorc(y, x + --len);
+                        SLsmg_write_char(' ');
+                } else {
+                        buf[len] = key;
+                        SLsmg_gotorc(y, x + len++);
+                        SLsmg_write_char(key);
+                }
+                SLsmg_refresh();
+
+                /* XXX more graceful overflow handling needed */
+                if (len == sizeof(buf) - 1) {
+                        ui_helpline__push("maximum size of symbol name reached!");
+                        key = K_ENTER;
+                        break;
+                }
+next_key:
+                key = ui__getch(delay_secs);
+        }
+
+        buf[len] = '\0';
+        strncpy(input, buf, len+1);
+        return key;
+}
+
+int ui__question_window(const char *title, const char *text,
+                        const char *exit_msg, int delay_secs)
+{
+        int x, y;
+        int max_len = 0, nr_lines = 0;
+        const char *t;
+
+        t = text;
+        while (1) {
+                const char *sep = strchr(t, '\n');
+                int len;
+
+                if (sep == NULL)
+                        sep = strchr(t, '\0');
+                len = sep - t;
+                if (max_len < len)
+                        max_len = len;
+                ++nr_lines;
+                if (*sep == '\0')
+                        break;
+                t = sep + 1;
+        }
+
+        max_len += 2;
+        nr_lines += 4;
+        y = SLtt_Screen_Rows / 2 - nr_lines / 2,
+        x = SLtt_Screen_Cols / 2 - max_len / 2;
+
+        SLsmg_set_color(0);
+        SLsmg_draw_box(y, x++, nr_lines, max_len);
+        if (title) {
+                SLsmg_gotorc(y, x + 1);
+                SLsmg_write_string((char *)title);
+        }
+        SLsmg_gotorc(++y, x);
+        nr_lines -= 2;
+        max_len -= 2;
+        SLsmg_write_wrapped_string((unsigned char *)text, y, x,
+                                   nr_lines, max_len, 1);
+        SLsmg_gotorc(y + nr_lines - 2, x);
+        SLsmg_write_nstring((char *)" ", max_len);
+        SLsmg_gotorc(y + nr_lines - 1, x);
+        SLsmg_write_nstring((char *)exit_msg, max_len);
+        SLsmg_refresh();
+        return ui__getch(delay_secs);
+}
+
+int ui__help_window(const char *text)
+{
+        return ui__question_window("Help", text, "Press any key...", 0);
+}
+
+int ui__dialog_yesno(const char *msg)
+{
+        return ui__question_window(NULL, msg, "Enter: Yes, ESC: No", 0);
+}
+
+static int __ui__warning(const char *title, const char *format, va_list args)
+{
+        char *s;
+
+        if (vasprintf(&s, format, args) > 0) {
+                int key;
+
+                pthread_mutex_lock(&ui__lock);
+                key = ui__question_window(title, s, "Press any key...", 0);
+                pthread_mutex_unlock(&ui__lock);
+                free(s);
+                return key;
+        }
+
+        fprintf(stderr, "%s\n", title);
+        vfprintf(stderr, format, args);
+        return K_ESC;
+}
+
+static int perf_tui__error(const char *format, va_list args)
+{
+        return __ui__warning("Error:", format, args);
+}
+
+static int perf_tui__warning(const char *format, va_list args)
+{
+        return __ui__warning("Warning:", format, args);
+}
+
+struct perf_error_ops perf_tui_eops = {
+        .error          = perf_tui__error,
+        .warning        = perf_tui__warning,
+};
diff --git a/tools/perf/ui/util.c b/tools/perf/ui/util.c
index ad4374a16bb0..4f989774c8c6 100644
--- a/tools/perf/ui/util.c
+++ b/tools/perf/ui/util.c
@@ -1,250 +1,85 @@
-#include "../util.h"
-#include <signal.h>
-#include <stdbool.h>
-#include <string.h>
-#include <sys/ttydefaults.h>
-
-#include "../cache.h"
-#include "../debug.h"
-#include "browser.h"
-#include "keysyms.h"
-#include "helpline.h"
-#include "ui.h"
 #include "util.h"
-#include "libslang.h"
-
-static void ui_browser__argv_write(struct ui_browser *browser,
-                                   void *entry, int row)
-{
-        char **arg = entry;
-        bool current_entry = ui_browser__is_current_entry(browser, row);
-
-        ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
-                                                       HE_COLORSET_NORMAL);
-        slsmg_write_nstring(*arg, browser->width);
-}
-
-static int popup_menu__run(struct ui_browser *menu)
-{
-        int key;
-
-        if (ui_browser__show(menu, " ", "ESC: exit, ENTER|->: Select option") < 0)
-                return -1;
+#include "../debug.h"
 
-        while (1) {
-                key = ui_browser__run(menu, 0);
-
-                switch (key) {
-                case K_RIGHT:
-                case K_ENTER:
-                        key = menu->index;
-                        break;
-                case K_LEFT:
-                case K_ESC:
-                case 'q':
-                case CTRL('c'):
-                        key = -1;
-                        break;
-                default:
-                        continue;
-                }
-
-                break;
-        }
-
-        ui_browser__hide(menu);
-        return key;
-}
 
-int ui__popup_menu(int argc, char * const argv[])
+/*
+ * Default error logging functions
+ */
+static int perf_stdio__error(const char *format, va_list args)
 {
-        struct ui_browser menu = {
-                .entries    = (void *)argv,
-                .refresh    = ui_browser__argv_refresh,
-                .seek       = ui_browser__argv_seek,
-                .write      = ui_browser__argv_write,
-                .nr_entries = argc,
-        };
-
-        return popup_menu__run(&menu);
+        fprintf(stderr, "Error:\n");
+        vfprintf(stderr, format, args);
+        return 0;
 }
 
-int ui_browser__input_window(const char *title, const char *text, char *input,
-                             const char *exit_msg, int delay_secs)
+static int perf_stdio__warning(const char *format, va_list args)
 {
-        int x, y, len, key;
-        int max_len = 60, nr_lines = 0;
-        static char buf[50];
-        const char *t;
-
-        t = text;
-        while (1) {
-                const char *sep = strchr(t, '\n');
-
-                if (sep == NULL)
-                        sep = strchr(t, '\0');
-                len = sep - t;
-                if (max_len < len)
-                        max_len = len;
-                ++nr_lines;
-                if (*sep == '\0')
-                        break;
-                t = sep + 1;
-        }
-
-        max_len += 2;
-        nr_lines += 8;
-        y = SLtt_Screen_Rows / 2 - nr_lines / 2;
-        x = SLtt_Screen_Cols / 2 - max_len / 2;
-
-        SLsmg_set_color(0);
-        SLsmg_draw_box(y, x++, nr_lines, max_len);
-        if (title) {
-                SLsmg_gotorc(y, x + 1);
-                SLsmg_write_string((char *)title);
-        }
-        SLsmg_gotorc(++y, x);
-        nr_lines -= 7;
-        max_len -= 2;
-        SLsmg_write_wrapped_string((unsigned char *)text, y, x,
-                                   nr_lines, max_len, 1);
-        y += nr_lines;
-        len = 5;
-        while (len--) {
-                SLsmg_gotorc(y + len - 1, x);
-                SLsmg_write_nstring((char *)" ", max_len);
-        }
-        SLsmg_draw_box(y++, x + 1, 3, max_len - 2);
-
-        SLsmg_gotorc(y + 3, x);
-        SLsmg_write_nstring((char *)exit_msg, max_len);
-        SLsmg_refresh();
-
-        x += 2;
-        len = 0;
-        key = ui__getch(delay_secs);
-        while (key != K_TIMER && key != K_ENTER && key != K_ESC) {
-                if (key == K_BKSPC) {
-                        if (len == 0)
-                                goto next_key;
-                        SLsmg_gotorc(y, x + --len);
-                        SLsmg_write_char(' ');
-                } else {
-                        buf[len] = key;
-                        SLsmg_gotorc(y, x + len++);
-                        SLsmg_write_char(key);
-                }
-                SLsmg_refresh();
-
-                /* XXX more graceful overflow handling needed */
-                if (len == sizeof(buf) - 1) {
-                        ui_helpline__push("maximum size of symbol name reached!");
-                        key = K_ENTER;
-                        break;
-                }
-next_key:
-                key = ui__getch(delay_secs);
-        }
-
-        buf[len] = '\0';
-        strncpy(input, buf, len+1);
-        return key;
+        fprintf(stderr, "Warning:\n");
+        vfprintf(stderr, format, args);
+        return 0;
 }
 
-int ui__question_window(const char *title, const char *text,
-                        const char *exit_msg, int delay_secs)
+static struct perf_error_ops default_eops =
 {
-        int x, y;
-        int max_len = 0, nr_lines = 0;
-        const char *t;
-
-        t = text;
-        while (1) {
-                const char *sep = strchr(t, '\n');
-                int len;
-
-                if (sep == NULL)
-                        sep = strchr(t, '\0');
-                len = sep - t;
-                if (max_len < len)
-                        max_len = len;
-                ++nr_lines;
-                if (*sep == '\0')
-                        break;
-                t = sep + 1;
-        }
-
-        max_len += 2;
-        nr_lines += 4;
-        y = SLtt_Screen_Rows / 2 - nr_lines / 2,
-        x = SLtt_Screen_Cols / 2 - max_len / 2;
-
-        SLsmg_set_color(0);
-        SLsmg_draw_box(y, x++, nr_lines, max_len);
-        if (title) {
-                SLsmg_gotorc(y, x + 1);
-                SLsmg_write_string((char *)title);
-        }
-        SLsmg_gotorc(++y, x);
-        nr_lines -= 2;
-        max_len -= 2;
-        SLsmg_write_wrapped_string((unsigned char *)text, y, x,
-                                   nr_lines, max_len, 1);
-        SLsmg_gotorc(y + nr_lines - 2, x);
-        SLsmg_write_nstring((char *)" ", max_len);
-        SLsmg_gotorc(y + nr_lines - 1, x);
-        SLsmg_write_nstring((char *)exit_msg, max_len);
-        SLsmg_refresh();
-        return ui__getch(delay_secs);
-}
+        .error          = perf_stdio__error,
+        .warning        = perf_stdio__warning,
+};
 
-int ui__help_window(const char *text)
-{
-        return ui__question_window("Help", text, "Press any key...", 0);
-}
+static struct perf_error_ops *perf_eops = &default_eops;
 
-int ui__dialog_yesno(const char *msg)
-{
-        return ui__question_window(NULL, msg, "Enter: Yes, ESC: No", 0);
-}
 
-int __ui__warning(const char *title, const char *format, va_list args)
+int ui__error(const char *format, ...)
 {
-        char *s;
-
-        if (use_browser > 0 && vasprintf(&s, format, args) > 0) {
-                int key;
+        int ret;
+        va_list args;
 
-                pthread_mutex_lock(&ui__lock);
-                key = ui__question_window(title, s, "Press any key...", 0);
-                pthread_mutex_unlock(&ui__lock);
-                free(s);
-                return key;
-        }
+        va_start(args, format);
+        ret = perf_eops->error(format, args);
+        va_end(args);
 
-        fprintf(stderr, "%s:\n", title);
-        vfprintf(stderr, format, args);
-        return K_ESC;
+        return ret;
 }
 
 int ui__warning(const char *format, ...)
 {
-        int key;
+        int ret;
         va_list args;
 
         va_start(args, format);
-        key = __ui__warning("Warning", format, args);
+        ret = perf_eops->warning(format, args);
         va_end(args);
-        return key;
+
+        return ret;
 }
 
-int ui__error(const char *format, ...)
+
+/**
+ * perf_error__register - Register error logging functions
+ * @eops: The pointer to error logging function struct
+ *
+ * Register UI-specific error logging functions. Before calling this,
+ * other logging functions should be unregistered, if any.
+ */
+int perf_error__register(struct perf_error_ops *eops)
 {
-        int key;
-        va_list args;
+        if (perf_eops != &default_eops)
+                return -1;
 
-        va_start(args, format);
-        key = __ui__warning("Error", format, args);
-        va_end(args);
-        return key;
+        perf_eops = eops;
+        return 0;
+}
+
+/**
+ * perf_error__unregister - Unregister error logging functions
+ * @eops: The pointer to error logging function struct
+ *
+ * Unregister already registered error logging functions.
+ */
+int perf_error__unregister(struct perf_error_ops *eops)
+{
+        if (perf_eops != eops)
+                return -1;
+
+        perf_eops = &default_eops;
+        return 0;
 }
diff --git a/tools/perf/ui/util.h b/tools/perf/ui/util.h
index 2d1738bd71c8..361f08c52d37 100644
--- a/tools/perf/ui/util.h
+++ b/tools/perf/ui/util.h
@@ -9,6 +9,13 @@ int ui__help_window(const char *text);
 int ui__dialog_yesno(const char *msg);
 int ui__question_window(const char *title, const char *text,
                         const char *exit_msg, int delay_secs);
-int __ui__warning(const char *title, const char *format, va_list args);
+
+struct perf_error_ops {
+        int (*error)(const char *format, va_list args);
+        int (*warning)(const char *format, va_list args);
+};
+
+int perf_error__register(struct perf_error_ops *eops);
+int perf_error__unregister(struct perf_error_ops *eops);
 
 #endif /* _PERF_UI_UTIL_H_ */
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index efb1fce259a4..4dfe0bb3c322 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -47,7 +47,7 @@ int dump_printf(const char *fmt, ...)
         return ret;
 }
 
-#ifdef NO_NEWT_SUPPORT
+#if defined(NO_NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
 int ui__warning(const char *format, ...)
 {
         va_list args;
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index 6bebe7f0a20c..015c91dbc096 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -12,8 +12,9 @@ int dump_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
 void trace_event(union perf_event *event);
 
 struct ui_progress;
+struct perf_error_ops;
 
-#ifdef NO_NEWT_SUPPORT
+#if defined(NO_NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT)
 static inline int ui_helpline__show_help(const char *format __used, va_list ap __used)
 {
         return 0;
@@ -23,12 +24,28 @@ static inline void ui_progress__update(u64 curr __used, u64 total __used,
                                        const char *title __used) {}
 
 #define ui__error(format, arg...) ui__warning(format, ##arg)
-#else
+
+static inline int
+perf_error__register(struct perf_error_ops *eops __used)
+{
+        return 0;
+}
+
+static inline int
+perf_error__unregister(struct perf_error_ops *eops __used)
+{
+        return 0;
+}
+
+#else /* NO_NEWT_SUPPORT && NO_GTK2_SUPPORT */
+
 extern char ui_helpline__last_msg[];
 int ui_helpline__show_help(const char *format, va_list ap);
 #include "../ui/progress.h"
 int ui__error(const char *format, ...) __attribute__((format(printf, 1, 2)));
-#endif
+#include "../ui/util.h"
+
+#endif /* NO_NEWT_SUPPORT && NO_GTK2_SUPPORT */
 
 int ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
 int ui__error_paranoid(void);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 7400fb3fc50c..f74e9560350e 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -224,8 +224,8 @@ out_free_attrs:
         return err;
 }
 
-static struct perf_evsel *
-        perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id)
+struct perf_evsel *
+perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id)
 {
         struct perf_evsel *evsel;
 
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 989bee9624c2..40d4d3cdced0 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -73,6 +73,9 @@ int perf_evlist__set_tracepoints_handlers(struct perf_evlist *evlist,
 #define perf_evlist__set_tracepoints_handlers_array(evlist, array) \
         perf_evlist__set_tracepoints_handlers(evlist, array, ARRAY_SIZE(array))
 
+struct perf_evsel *
+perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
+
 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
                          int cpu, int thread, u64 id);
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 9f6cebd798ee..e81771364867 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -15,7 +15,7 @@
 #include "cpumap.h"
 #include "thread_map.h"
 #include "target.h"
-#include "../../include/linux/perf_event.h"
+#include "../../../include/linux/hw_breakpoint.h"
 
 #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
 #define GROUP_FD(group_fd, cpu) (*(int *)xyarray__entry(group_fd, cpu, 0))
@@ -78,7 +78,7 @@ static const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX] = {
         "ref-cycles",
 };
 
-const char *__perf_evsel__hw_name(u64 config)
+static const char *__perf_evsel__hw_name(u64 config)
 {
         if (config < PERF_COUNT_HW_MAX && perf_evsel__hw_names[config])
                 return perf_evsel__hw_names[config];
@@ -86,16 +86,15 @@ const char *__perf_evsel__hw_name(u64 config)
         return "unknown-hardware";
 }
 
-static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
+static int perf_evsel__add_modifiers(struct perf_evsel *evsel, char *bf, size_t size)
 {
-        int colon = 0;
+        int colon = 0, r = 0;
         struct perf_event_attr *attr = &evsel->attr;
-        int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(attr->config));
         bool exclude_guest_default = false;
 
 #define MOD_PRINT(context, mod) do {                                    \
                 if (!attr->exclude_##context) {                         \
-                        if (!colon) colon = r++;                        \
+                        if (!colon) colon = ++r;                        \
                         r += scnprintf(bf + r, size - r, "%c", mod);    \
                 } } while(0)
 
@@ -108,7 +107,7 @@ static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
 
         if (attr->precise_ip) {
                 if (!colon)
-                        colon = r++;
+                        colon = ++r;
                 r += scnprintf(bf + r, size - r, "%.*s", attr->precise_ip, "ppp");
                 exclude_guest_default = true;
         }
@@ -119,39 +118,211 @@ static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
         }
 #undef MOD_PRINT
         if (colon)
-                bf[colon] = ':';
+                bf[colon - 1] = ':';
         return r;
 }
 
-int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size)
+static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+        int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(evsel->attr.config));
+        return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
+}
+
+static const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX] = {
+        "cpu-clock",
+        "task-clock",
+        "page-faults",
+        "context-switches",
+        "CPU-migrations",
+        "minor-faults",
+        "major-faults",
+        "alignment-faults",
+        "emulation-faults",
+};
+
+static const char *__perf_evsel__sw_name(u64 config)
 {
-        int ret;
+        if (config < PERF_COUNT_SW_MAX && perf_evsel__sw_names[config])
+                return perf_evsel__sw_names[config];
+        return "unknown-software";
+}
+
+static int perf_evsel__sw_name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+        int r = scnprintf(bf, size, "%s", __perf_evsel__sw_name(evsel->attr.config));
+        return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
+}
+
+static int __perf_evsel__bp_name(char *bf, size_t size, u64 addr, u64 type)
+{
+        int r;
+
+        r = scnprintf(bf, size, "mem:0x%" PRIx64 ":", addr);
+
+        if (type & HW_BREAKPOINT_R)
+                r += scnprintf(bf + r, size - r, "r");
+
+        if (type & HW_BREAKPOINT_W)
+                r += scnprintf(bf + r, size - r, "w");
+
+        if (type & HW_BREAKPOINT_X)
+                r += scnprintf(bf + r, size - r, "x");
+
+        return r;
+}
+
+static int perf_evsel__bp_name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+        struct perf_event_attr *attr = &evsel->attr;
+        int r = __perf_evsel__bp_name(bf, size, attr->bp_addr, attr->bp_type);
+        return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
+}
+
+const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
+                                [PERF_EVSEL__MAX_ALIASES] = {
+ { "L1-dcache", "l1-d",         "l1d",          "L1-data",              },
+ { "L1-icache", "l1-i",         "l1i",          "L1-instruction",       },
+ { "LLC",       "L2",                                                   },
+ { "dTLB",      "d-tlb",        "Data-TLB",                             },
+ { "iTLB",      "i-tlb",        "Instruction-TLB",                      },
+ { "branch",    "branches",     "bpu",          "btb",          "bpc",  },
+ { "node",                                                              },
+};
+
+const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
+                                   [PERF_EVSEL__MAX_ALIASES] = {
+ { "load",      "loads",        "read",                                 },
+ { "store",     "stores",       "write",                                },
+ { "prefetch",  "prefetches",   "speculative-read", "speculative-load", },
+};
+
+const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
+                                       [PERF_EVSEL__MAX_ALIASES] = {
+ { "refs",      "Reference",    "ops",          "access",               },
+ { "misses",    "miss",                                                 },
+};
+
+#define C(x)            PERF_COUNT_HW_CACHE_##x
+#define CACHE_READ      (1 << C(OP_READ))
+#define CACHE_WRITE     (1 << C(OP_WRITE))
+#define CACHE_PREFETCH  (1 << C(OP_PREFETCH))
+#define COP(x)          (1 << x)
+
+/*
+ * cache operartion stat
+ * L1I : Read and prefetch only
+ * ITLB and BPU : Read-only
+ */
+static unsigned long perf_evsel__hw_cache_stat[C(MAX)] = {
+ [C(L1D)]       = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
+ [C(L1I)]       = (CACHE_READ | CACHE_PREFETCH),
+ [C(LL)]        = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
+ [C(DTLB)]      = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
+ [C(ITLB)]      = (CACHE_READ),
+ [C(BPU)]       = (CACHE_READ),
+ [C(NODE)]      = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
+};
+
+bool perf_evsel__is_cache_op_valid(u8 type, u8 op)
+{
+        if (perf_evsel__hw_cache_stat[type] & COP(op))
+                return true;    /* valid */
+        else
+                return false;   /* invalid */
+}
+
+int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
+                                            char *bf, size_t size)
+{
+        if (result) {
+                return scnprintf(bf, size, "%s-%s-%s", perf_evsel__hw_cache[type][0],
+                                 perf_evsel__hw_cache_op[op][0],
+                                 perf_evsel__hw_cache_result[result][0]);
+        }
+
+        return scnprintf(bf, size, "%s-%s", perf_evsel__hw_cache[type][0],
+                         perf_evsel__hw_cache_op[op][1]);
+}
+
+static int __perf_evsel__hw_cache_name(u64 config, char *bf, size_t size)
+{
+        u8 op, result, type = (config >>  0) & 0xff;
+        const char *err = "unknown-ext-hardware-cache-type";
+
+        if (type > PERF_COUNT_HW_CACHE_MAX)
+                goto out_err;
+
+        op = (config >>  8) & 0xff;
+        err = "unknown-ext-hardware-cache-op";
+        if (op > PERF_COUNT_HW_CACHE_OP_MAX)
+                goto out_err;
+
+        result = (config >> 16) & 0xff;
+        err = "unknown-ext-hardware-cache-result";
+        if (result > PERF_COUNT_HW_CACHE_RESULT_MAX)
+                goto out_err;
+
+        err = "invalid-cache";
+        if (!perf_evsel__is_cache_op_valid(type, op))
+                goto out_err;
+
+        return __perf_evsel__hw_cache_type_op_res_name(type, op, result, bf, size);
+out_err:
+        return scnprintf(bf, size, "%s", err);
+}
+
+static int perf_evsel__hw_cache_name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+        int ret = __perf_evsel__hw_cache_name(evsel->attr.config, bf, size);
+        return ret + perf_evsel__add_modifiers(evsel, bf + ret, size - ret);
+}
+
+static int perf_evsel__raw_name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+        int ret = scnprintf(bf, size, "raw 0x%" PRIx64, evsel->attr.config);
+        return ret + perf_evsel__add_modifiers(evsel, bf + ret, size - ret);
+}
+
+const char *perf_evsel__name(struct perf_evsel *evsel)
+{
+        char bf[128];
+
+        if (evsel->name)
+                return evsel->name;
 
         switch (evsel->attr.type) {
         case PERF_TYPE_RAW:
-                ret = scnprintf(bf, size, "raw 0x%" PRIx64, evsel->attr.config);
+                perf_evsel__raw_name(evsel, bf, sizeof(bf));
                 break;
 
         case PERF_TYPE_HARDWARE:
-                ret = perf_evsel__hw_name(evsel, bf, size);
+                perf_evsel__hw_name(evsel, bf, sizeof(bf));
+                break;
+
+        case PERF_TYPE_HW_CACHE:
+                perf_evsel__hw_cache_name(evsel, bf, sizeof(bf));
+                break;
+
+        case PERF_TYPE_SOFTWARE:
+                perf_evsel__sw_name(evsel, bf, sizeof(bf));
                 break;
+
+        case PERF_TYPE_TRACEPOINT:
+                scnprintf(bf, sizeof(bf), "%s", "unknown tracepoint");
+                break;
+
+        case PERF_TYPE_BREAKPOINT:
+                perf_evsel__bp_name(evsel, bf, sizeof(bf));
+                break;
+
         default:
-                /*
-                 * FIXME
-                 *
-                 * This is the minimal perf_evsel__name so that we can
-                 * reconstruct event names taking into account event modifiers.
-                 *
-                 * The old event_name uses it now for raw anr hw events, so that
-                 * we don't drag all the parsing stuff into the python binding.
-                 *
-                 * On the next devel cycle the rest of the event naming will be
-                 * brought here.
-                 */
-                return 0;
-        }
-
-        return ret;
+                scnprintf(bf, sizeof(bf), "%s", "unknown attr type");
+                break;
+        }
+
+        evsel->name = strdup(bf);
+
+        return evsel->name ?: "unknown";
 }
 
 void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 4ba8b564e6f4..67cc5033d192 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -83,8 +83,19 @@ void perf_evsel__config(struct perf_evsel *evsel,
                         struct perf_record_opts *opts,
                         struct perf_evsel *first);
 
-const char* __perf_evsel__hw_name(u64 config);
-int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size);
+bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
+
+#define PERF_EVSEL__MAX_ALIASES 8
+
+extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
+                                       [PERF_EVSEL__MAX_ALIASES];
+extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
+                                          [PERF_EVSEL__MAX_ALIASES];
+const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
+                                       [PERF_EVSEL__MAX_ALIASES];
+int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
+                                            char *bf, size_t size);
+const char *perf_evsel__name(struct perf_evsel *evsel);
 
 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index e909d43cf542..5a47aba46759 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -641,7 +641,7 @@ static int write_event_desc(int fd, struct perf_header *h __used,
                 /*
                  * write event string as passed on cmdline
                  */
-                ret = do_write_string(fd, event_name(attr));
+                ret = do_write_string(fd, perf_evsel__name(attr));
                 if (ret < 0)
                         return ret;
                 /*
@@ -1474,15 +1474,15 @@ out:
 
 static int process_tracing_data(struct perf_file_section *section __unused,
                               struct perf_header *ph __unused,
-                              int feat __unused, int fd)
+                              int feat __unused, int fd, void *data)
 {
-        trace_report(fd, false);
+        trace_report(fd, data, false);
         return 0;
 }
 
 static int process_build_id(struct perf_file_section *section,
                             struct perf_header *ph,
-                            int feat __unused, int fd)
+                            int feat __unused, int fd, void *data __used)
 {
         if (perf_header__read_build_ids(ph, fd, section->offset, section->size))
                 pr_debug("Failed to read buildids, continuing...\n");
@@ -1493,7 +1493,7 @@ struct feature_ops {
         int (*write)(int fd, struct perf_header *h, struct perf_evlist *evlist);
         void (*print)(struct perf_header *h, int fd, FILE *fp);
         int (*process)(struct perf_file_section *section,
-                       struct perf_header *h, int feat, int fd);
+                       struct perf_header *h, int feat, int fd, void *data);
         const char *name;
         bool full_only;
 };
@@ -1988,7 +1988,7 @@ int perf_file_header__read(struct perf_file_header *header,
 
 static int perf_file_section__process(struct perf_file_section *section,
                                       struct perf_header *ph,
-                                      int feat, int fd, void *data __used)
+                                      int feat, int fd, void *data)
 {
         if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) {
                 pr_debug("Failed to lseek to %" PRIu64 " offset for feature "
@@ -2004,7 +2004,7 @@ static int perf_file_section__process(struct perf_file_section *section,
         if (!feat_ops[feat].process)
                 return 0;
 
-        return feat_ops[feat].process(section, ph, feat, fd);
+        return feat_ops[feat].process(section, ph, feat, fd, data);
 }
 
 static int perf_file_header__read_pipe(struct perf_pipe_file_header *header,
@@ -2093,9 +2093,11 @@ static int read_attr(int fd, struct perf_header *ph,
         return ret <= 0 ? -1 : 0;
 }
 
-static int perf_evsel__set_tracepoint_name(struct perf_evsel *evsel)
+static int perf_evsel__set_tracepoint_name(struct perf_evsel *evsel,
+                                           struct pevent *pevent)
 {
-        struct event_format *event = trace_find_event(evsel->attr.config);
+        struct event_format *event = pevent_find_event(pevent,
+                                                       evsel->attr.config);
         char bf[128];
 
         if (event == NULL)
@@ -2109,13 +2111,14 @@ static int perf_evsel__set_tracepoint_name(struct perf_evsel *evsel)
         return 0;
 }
 
-static int perf_evlist__set_tracepoint_names(struct perf_evlist *evlist)
+static int perf_evlist__set_tracepoint_names(struct perf_evlist *evlist,
+                                             struct pevent *pevent)
 {
         struct perf_evsel *pos;
 
         list_for_each_entry(pos, &evlist->entries, node) {
                 if (pos->attr.type == PERF_TYPE_TRACEPOINT &&
-                    perf_evsel__set_tracepoint_name(pos))
+                    perf_evsel__set_tracepoint_name(pos, pevent))
                         return -1;
         }
 
@@ -2198,12 +2201,12 @@ int perf_session__read_header(struct perf_session *session, int fd)
                 event_count =  f_header.event_types.size / sizeof(struct perf_trace_event_type);
         }
 
-        perf_header__process_sections(header, fd, NULL,
+        perf_header__process_sections(header, fd, &session->pevent,
                                       perf_file_section__process);
 
         lseek(fd, header->data_offset, SEEK_SET);
 
-        if (perf_evlist__set_tracepoint_names(session->evlist))
+        if (perf_evlist__set_tracepoint_names(session->evlist, session->pevent))
                 goto out_delete_evlist;
 
         header->frozen = 1;
@@ -2419,8 +2422,8 @@ int perf_event__process_tracing_data(union perf_event *event,
         lseek(session->fd, offset + sizeof(struct tracing_data_event),
               SEEK_SET);
 
-        size_read = trace_report(session->fd, session->repipe);
-
+        size_read = trace_report(session->fd, &session->pevent,
+                                 session->repipe);
         padding = ALIGN(size_read, sizeof(u64)) - size_read;
 
         if (read(session->fd, buf, padding) < 0)
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 34bb556d6219..0b096c27a419 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -47,6 +47,7 @@ enum hist_column {
         HISTC_SYMBOL_TO,
         HISTC_DSO_FROM,
         HISTC_DSO_TO,
+        HISTC_SRCLINE,
         HISTC_NR_COLS, /* Last entry */
 };
 
diff --git a/tools/perf/util/include/linux/kernel.h b/tools/perf/util/include/linux/kernel.h
index 1eb804fd3fbf..b6842c1d02a8 100644
--- a/tools/perf/util/include/linux/kernel.h
+++ b/tools/perf/util/include/linux/kernel.h
@@ -108,4 +108,14 @@ int eprintf(int level,
 #define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__)
 
+/*
+ * This looks more complex than it should be. But we need to
+ * get the type for the ~ right in round_down (it needs to be
+ * as wide as the result!), and we want to evaluate the macro
+ * arguments just once each.
+ */
+#define __round_mask(x, y) ((__typeof__(x))((y)-1))
+#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
+#define round_down(x, y) ((x) & ~__round_mask(x, y))
+
 #endif
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 81371bad4ef0..c14c665d9a25 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -157,7 +157,7 @@ void machine__exit(struct machine *self);
 void machine__delete(struct machine *self);
 
 int machine__resolve_callchain(struct machine *machine,
-                               struct perf_evsel *evsel, struct thread *thread,
+                               struct thread *thread,
                                struct ip_callchain *chain,
                                struct symbol **parent);
 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c
index 76b98e2a587d..1b997d2b89ce 100644
--- a/tools/perf/util/parse-events-test.c
+++ b/tools/perf/util/parse-events-test.c
@@ -181,6 +181,22 @@ static int test__checkevent_breakpoint_w(struct perf_evlist *evlist)
         return 0;
 }
 
+static int test__checkevent_breakpoint_rw(struct perf_evlist *evlist)
+{
+        struct perf_evsel *evsel = list_entry(evlist->entries.next,
+                                              struct perf_evsel, node);
+
+        TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
+        TEST_ASSERT_VAL("wrong type",
+                        PERF_TYPE_BREAKPOINT == evsel->attr.type);
+        TEST_ASSERT_VAL("wrong config", 0 == evsel->attr.config);
+        TEST_ASSERT_VAL("wrong bp_type",
+                (HW_BREAKPOINT_R|HW_BREAKPOINT_W) == evsel->attr.bp_type);
+        TEST_ASSERT_VAL("wrong bp_len",
+                        HW_BREAKPOINT_LEN_4 == evsel->attr.bp_len);
+        return 0;
+}
+
 static int test__checkevent_tracepoint_modifier(struct perf_evlist *evlist)
 {
         struct perf_evsel *evsel = list_entry(evlist->entries.next,
@@ -309,6 +325,8 @@ static int test__checkevent_breakpoint_modifier(struct perf_evlist *evlist)
         TEST_ASSERT_VAL("wrong exclude_kernel", evsel->attr.exclude_kernel);
         TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
         TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
+        TEST_ASSERT_VAL("wrong name",
+                        !strcmp(perf_evsel__name(evsel), "mem:0x0:rw:u"));
 
         return test__checkevent_breakpoint(evlist);
 }
@@ -322,6 +340,8 @@ static int test__checkevent_breakpoint_x_modifier(struct perf_evlist *evlist)
         TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->attr.exclude_kernel);
         TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
         TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
+        TEST_ASSERT_VAL("wrong name",
+                        !strcmp(perf_evsel__name(evsel), "mem:0x0:x:k"));
 
         return test__checkevent_breakpoint_x(evlist);
 }
@@ -335,6 +355,8 @@ static int test__checkevent_breakpoint_r_modifier(struct perf_evlist *evlist)
         TEST_ASSERT_VAL("wrong exclude_kernel", evsel->attr.exclude_kernel);
         TEST_ASSERT_VAL("wrong exclude_hv", !evsel->attr.exclude_hv);
         TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip);
+        TEST_ASSERT_VAL("wrong name",
+                        !strcmp(perf_evsel__name(evsel), "mem:0x0:r:hp"));
 
         return test__checkevent_breakpoint_r(evlist);
 }
@@ -348,10 +370,27 @@ static int test__checkevent_breakpoint_w_modifier(struct perf_evlist *evlist)
         TEST_ASSERT_VAL("wrong exclude_kernel", evsel->attr.exclude_kernel);
         TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
         TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip);
+        TEST_ASSERT_VAL("wrong name",
+                        !strcmp(perf_evsel__name(evsel), "mem:0x0:w:up"));
 
         return test__checkevent_breakpoint_w(evlist);
 }
 
+static int test__checkevent_breakpoint_rw_modifier(struct perf_evlist *evlist)
+{
+        struct perf_evsel *evsel = list_entry(evlist->entries.next,
+                                              struct perf_evsel, node);
+
+        TEST_ASSERT_VAL("wrong exclude_user", evsel->attr.exclude_user);
+        TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->attr.exclude_kernel);
+        TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
+        TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip);
+        TEST_ASSERT_VAL("wrong name",
+                        !strcmp(perf_evsel__name(evsel), "mem:0x0:rw:kp"));
+
+        return test__checkevent_breakpoint_rw(evlist);
+}
+
 static int test__checkevent_pmu(struct perf_evlist *evlist)
 {
 
@@ -413,19 +452,63 @@ static int test__checkevent_pmu_name(struct perf_evlist *evlist)
 {
         struct perf_evsel *evsel;
 
-        /* cpu/config=1,name=krava1/u */
+        /* cpu/config=1,name=krava/u */
         evsel = list_entry(evlist->entries.next, struct perf_evsel, node);
         TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries);
         TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
         TEST_ASSERT_VAL("wrong config",  1 == evsel->attr.config);
-        TEST_ASSERT_VAL("wrong name", !strcmp(evsel->name, "krava"));
+        TEST_ASSERT_VAL("wrong name", !strcmp(perf_evsel__name(evsel), "krava"));
 
-        /* cpu/config=2/" */
+        /* cpu/config=2/u" */
         evsel = list_entry(evsel->node.next, struct perf_evsel, node);
         TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries);
         TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
         TEST_ASSERT_VAL("wrong config",  2 == evsel->attr.config);
-        TEST_ASSERT_VAL("wrong name", !strcmp(evsel->name, "raw 0x2"));
+        TEST_ASSERT_VAL("wrong name",
+                        !strcmp(perf_evsel__name(evsel), "raw 0x2:u"));
+
+        return 0;
+}
+
+static int test__checkterms_simple(struct list_head *terms)
+{
+        struct parse_events__term *term;
+
+        /* config=10 */
+        term = list_entry(terms->next, struct parse_events__term, list);
+        TEST_ASSERT_VAL("wrong type term",
+                        term->type_term == PARSE_EVENTS__TERM_TYPE_CONFIG);
+        TEST_ASSERT_VAL("wrong type val",
+                        term->type_val == PARSE_EVENTS__TERM_TYPE_NUM);
+        TEST_ASSERT_VAL("wrong val", term->val.num == 10);
+        TEST_ASSERT_VAL("wrong config", !term->config);
+
+        /* config1 */
+        term = list_entry(term->list.next, struct parse_events__term, list);
+        TEST_ASSERT_VAL("wrong type term",
+                        term->type_term == PARSE_EVENTS__TERM_TYPE_CONFIG1);
+        TEST_ASSERT_VAL("wrong type val",
+                        term->type_val == PARSE_EVENTS__TERM_TYPE_NUM);
+        TEST_ASSERT_VAL("wrong val", term->val.num == 1);
+        TEST_ASSERT_VAL("wrong config", !term->config);
+
+        /* config2=3 */
+        term = list_entry(term->list.next, struct parse_events__term, list);
+        TEST_ASSERT_VAL("wrong type term",
+                        term->type_term == PARSE_EVENTS__TERM_TYPE_CONFIG2);
+        TEST_ASSERT_VAL("wrong type val",
+                        term->type_val == PARSE_EVENTS__TERM_TYPE_NUM);
+        TEST_ASSERT_VAL("wrong val", term->val.num == 3);
+        TEST_ASSERT_VAL("wrong config", !term->config);
+
+        /* umask=1*/
+        term = list_entry(term->list.next, struct parse_events__term, list);
+        TEST_ASSERT_VAL("wrong type term",
+                        term->type_term == PARSE_EVENTS__TERM_TYPE_USER);
+        TEST_ASSERT_VAL("wrong type val",
+                        term->type_val == PARSE_EVENTS__TERM_TYPE_NUM);
+        TEST_ASSERT_VAL("wrong val", term->val.num == 1);
+        TEST_ASSERT_VAL("wrong config", !strcmp(term->config, "umask"));
 
         return 0;
 }
@@ -541,10 +624,16 @@ static struct test__event_st test__events[] = {
                 .name  = "instructions:H",
                 .check = test__checkevent_exclude_guest_modifier,
         },
+        [26] = {
+                .name  = "mem:0:rw",
+                .check = test__checkevent_breakpoint_rw,
+        },
+        [27] = {
+                .name  = "mem:0:rw:kp",
+                .check = test__checkevent_breakpoint_rw_modifier,
+        },
 };
 
-#define TEST__EVENTS_CNT (sizeof(test__events) / sizeof(struct test__event_st))
-
 static struct test__event_st test__events_pmu[] = {
         [0] = {
                 .name  = "cpu/config=10,config1,config2=3,period=1000/u",
@@ -556,10 +645,23 @@ static struct test__event_st test__events_pmu[] = {
         },
 };
 
-#define TEST__EVENTS_PMU_CNT (sizeof(test__events_pmu) / \
-                              sizeof(struct test__event_st))
+struct test__term {
+        const char *str;
+        __u32 type;
+        int (*check)(struct list_head *terms);
+};
+
+static struct test__term test__terms[] = {
+        [0] = {
+                .str   = "config=10,config1,config2=3,umask=1",
+                .check = test__checkterms_simple,
+        },
+};
+
+#define TEST__TERMS_CNT (sizeof(test__terms) / \
+                         sizeof(struct test__term))
 
-static int test(struct test__event_st *e)
+static int test_event(struct test__event_st *e)
 {
         struct perf_evlist *evlist;
         int ret;
@@ -590,7 +692,48 @@ static int test_events(struct test__event_st *events, unsigned cnt)
                 struct test__event_st *e = &events[i];
 
                 pr_debug("running test %d '%s'\n", i, e->name);
-                ret = test(e);
+                ret = test_event(e);
+                if (ret)
+                        break;
+        }
+
+        return ret;
+}
+
+static int test_term(struct test__term *t)
+{
+        struct list_head *terms;
+        int ret;
+
+        terms = malloc(sizeof(*terms));
+        if (!terms)
+                return -ENOMEM;
+
+        INIT_LIST_HEAD(terms);
+
+        ret = parse_events_terms(terms, t->str);
+        if (ret) {
+                pr_debug("failed to parse terms '%s', err %d\n",
+                         t->str , ret);
+                return ret;
+        }
+
+        ret = t->check(terms);
+        parse_events__free_terms(terms);
+
+        return ret;
+}
+
+static int test_terms(struct test__term *terms, unsigned cnt)
+{
+        int ret = 0;
+        unsigned i;
+
+        for (i = 0; i < cnt; i++) {
+                struct test__term *t = &terms[i];
+
+                pr_debug("running test %d '%s'\n", i, t->str);
+                ret = test_term(t);
                 if (ret)
                         break;
         }
@@ -617,9 +760,17 @@ int parse_events__test(void)
 {
         int ret;
 
-        ret = test_events(test__events, TEST__EVENTS_CNT);
-        if (!ret && test_pmu())
-                ret = test_events(test__events_pmu, TEST__EVENTS_PMU_CNT);
+#define TEST_EVENTS(tests)                              \
+do {                                                    \
+        ret = test_events(tests, ARRAY_SIZE(tests));    \
+        if (ret)                                        \
+                return ret;                             \
+} while (0)
 
-        return ret;
+        TEST_EVENTS(test__events);
+
+        if (test_pmu())
+                TEST_EVENTS(test__events_pmu);
+
+        return test_terms(test__terms, ARRAY_SIZE(test__terms));
 }
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 05dbc8b3c767..1aa721d7c10f 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -11,14 +11,14 @@
 #include "cache.h"
 #include "header.h"
 #include "debugfs.h"
+#include "parse-events-bison.h"
+#define YY_EXTRA_TYPE int
 #include "parse-events-flex.h"
 #include "pmu.h"
 
 #define MAX_NAME_LEN 100
 
 struct event_symbol {
-        u8              type;
-        u64             config;
         const char      *symbol;
         const char      *alias;
 };
@@ -26,32 +26,88 @@ struct event_symbol {
 #ifdef PARSER_DEBUG
 extern int parse_events_debug;
 #endif
-int parse_events_parse(struct list_head *list, int *idx);
-
-#define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x
-#define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x
-
-static struct event_symbol event_symbols[] = {
-  { CHW(CPU_CYCLES),                    "cpu-cycles",                   "cycles"                },
-  { CHW(STALLED_CYCLES_FRONTEND),       "stalled-cycles-frontend",      "idle-cycles-frontend"  },
-  { CHW(STALLED_CYCLES_BACKEND),        "stalled-cycles-backend",       "idle-cycles-backend"   },
-  { CHW(INSTRUCTIONS),                  "instructions",                 ""                      },
-  { CHW(CACHE_REFERENCES),              "cache-references",             ""                      },
-  { CHW(CACHE_MISSES),                  "cache-misses",                 ""                      },
-  { CHW(BRANCH_INSTRUCTIONS),           "branch-instructions",          "branches"              },
-  { CHW(BRANCH_MISSES),                 "branch-misses",                ""                      },
-  { CHW(BUS_CYCLES),                    "bus-cycles",                   ""                      },
-  { CHW(REF_CPU_CYCLES),                "ref-cycles",                   ""                      },
-
-  { CSW(CPU_CLOCK),                     "cpu-clock",                    ""                      },
-  { CSW(TASK_CLOCK),                    "task-clock",                   ""                      },
-  { CSW(PAGE_FAULTS),                   "page-faults",                  "faults"                },
-  { CSW(PAGE_FAULTS_MIN),               "minor-faults",                 ""                      },
-  { CSW(PAGE_FAULTS_MAJ),               "major-faults",                 ""                      },
-  { CSW(CONTEXT_SWITCHES),              "context-switches",             "cs"                    },
-  { CSW(CPU_MIGRATIONS),                "cpu-migrations",               "migrations"            },
-  { CSW(ALIGNMENT_FAULTS),              "alignment-faults",             ""                      },
-  { CSW(EMULATION_FAULTS),              "emulation-faults",             ""                      },
+int parse_events_parse(void *data, void *scanner);
+
+static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
+        [PERF_COUNT_HW_CPU_CYCLES] = {
+                .symbol = "cpu-cycles",
+                .alias  = "cycles",
+        },
+        [PERF_COUNT_HW_INSTRUCTIONS] = {
+                .symbol = "instructions",
+                .alias  = "",
+        },
+        [PERF_COUNT_HW_CACHE_REFERENCES] = {
+                .symbol = "cache-references",
+                .alias  = "",
+        },
+        [PERF_COUNT_HW_CACHE_MISSES] = {
+                .symbol = "cache-misses",
+                .alias  = "",
+        },
+        [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
+                .symbol = "branch-instructions",
+                .alias  = "branches",
+        },
+        [PERF_COUNT_HW_BRANCH_MISSES] = {
+                .symbol = "branch-misses",
+                .alias  = "",
+        },
+        [PERF_COUNT_HW_BUS_CYCLES] = {
+                .symbol = "bus-cycles",
+                .alias  = "",
+        },
+        [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
+                .symbol = "stalled-cycles-frontend",
+                .alias  = "idle-cycles-frontend",
+        },
+        [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
+                .symbol = "stalled-cycles-backend",
+                .alias  = "idle-cycles-backend",
+        },
+        [PERF_COUNT_HW_REF_CPU_CYCLES] = {
+                .symbol = "ref-cycles",
+                .alias  = "",
+        },
+};
+
+static struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
+        [PERF_COUNT_SW_CPU_CLOCK] = {
+                .symbol = "cpu-clock",
+                .alias  = "",
+        },
+        [PERF_COUNT_SW_TASK_CLOCK] = {
+                .symbol = "task-clock",
+                .alias  = "",
+        },
+        [PERF_COUNT_SW_PAGE_FAULTS] = {
+                .symbol = "page-faults",
+                .alias  = "faults",
+        },
+        [PERF_COUNT_SW_CONTEXT_SWITCHES] = {
+                .symbol = "context-switches",
+                .alias  = "cs",
+        },
+        [PERF_COUNT_SW_CPU_MIGRATIONS] = {
+                .symbol = "cpu-migrations",
+                .alias  = "migrations",
+        },
+        [PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
+                .symbol = "minor-faults",
+                .alias  = "",
+        },
+        [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
+                .symbol = "major-faults",
+                .alias  = "",
+        },
+        [PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
+                .symbol = "alignment-faults",
+                .alias  = "",
+        },
+        [PERF_COUNT_SW_EMULATION_FAULTS] = {
+                .symbol = "emulation-faults",
+                .alias  = "",
+        },
 };
 
 #define __PERF_EVENT_FIELD(config, name) \
@@ -62,63 +118,6 @@ static struct event_symbol event_symbols[] = {
 #define PERF_EVENT_TYPE(config)         __PERF_EVENT_FIELD(config, TYPE)
 #define PERF_EVENT_ID(config)           __PERF_EVENT_FIELD(config, EVENT)
 
-static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
-        "cpu-clock",
-        "task-clock",
-        "page-faults",
-        "context-switches",
-        "CPU-migrations",
-        "minor-faults",
-        "major-faults",
-        "alignment-faults",
-        "emulation-faults",
-};
-
-#define MAX_ALIASES 8
-
-static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
- { "L1-dcache", "l1-d",         "l1d",          "L1-data",              },
- { "L1-icache", "l1-i",         "l1i",          "L1-instruction",       },
- { "LLC",       "L2",                                                   },
- { "dTLB",      "d-tlb",        "Data-TLB",                             },
- { "iTLB",      "i-tlb",        "Instruction-TLB",                      },
- { "branch",    "branches",     "bpu",          "btb",          "bpc",  },
- { "node",                                                              },
-};
-
-static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
- { "load",      "loads",        "read",                                 },
- { "store",     "stores",       "write",                                },
- { "prefetch",  "prefetches",   "speculative-read", "speculative-load", },
-};
-
-static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
-                                  [MAX_ALIASES] = {
- { "refs",      "Reference",    "ops",          "access",               },
- { "misses",    "miss",                                                 },
-};
-
-#define C(x)            PERF_COUNT_HW_CACHE_##x
-#define CACHE_READ      (1 << C(OP_READ))
-#define CACHE_WRITE     (1 << C(OP_WRITE))
-#define CACHE_PREFETCH  (1 << C(OP_PREFETCH))
-#define COP(x)          (1 << x)
-
-/*
- * cache operartion stat
- * L1I : Read and prefetch only
- * ITLB and BPU : Read-only
- */
-static unsigned long hw_cache_stat[C(MAX)] = {
- [C(L1D)]       = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
- [C(L1I)]       = (CACHE_READ | CACHE_PREFETCH),
- [C(LL)]        = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
- [C(DTLB)]      = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
- [C(ITLB)]      = (CACHE_READ),
- [C(BPU)]       = (CACHE_READ),
- [C(NODE)]      = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
-};
-
 #define for_each_subsystem(sys_dir, sys_dirent, sys_next)              \
         while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next)        \
         if (sys_dirent.d_type == DT_DIR &&                                     \
@@ -218,48 +217,6 @@ struct tracepoint_path *tracepoint_id_to_path(u64 config)
         return NULL;
 }
 
-#define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1)
-static const char *tracepoint_id_to_name(u64 config)
-{
-        static char buf[TP_PATH_LEN];
-        struct tracepoint_path *path;
-
-        path = tracepoint_id_to_path(config);
-        if (path) {
-                snprintf(buf, TP_PATH_LEN, "%s:%s", path->system, path->name);
-                free(path->name);
-                free(path->system);
-                free(path);
-        } else
-                snprintf(buf, TP_PATH_LEN, "%s:%s", "unknown", "unknown");
-
-        return buf;
-}
-
-static int is_cache_op_valid(u8 cache_type, u8 cache_op)
-{
-        if (hw_cache_stat[cache_type] & COP(cache_op))
-                return 1;       /* valid */
-        else
-                return 0;       /* invalid */
-}
-
-static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result)
-{
-        static char name[50];
-
-        if (cache_result) {
-                sprintf(name, "%s-%s-%s", hw_cache[cache_type][0],
-                        hw_cache_op[cache_op][0],
-                        hw_cache_result[cache_result][0]);
-        } else {
-                sprintf(name, "%s-%s", hw_cache[cache_type][0],
-                        hw_cache_op[cache_op][1]);
-        }
-
-        return name;
-}
-
 const char *event_type(int type)
 {
         switch (type) {
@@ -282,76 +239,6 @@ const char *event_type(int type)
         return "unknown";
 }
 
-const char *event_name(struct perf_evsel *evsel)
-{
-        u64 config = evsel->attr.config;
-        int type = evsel->attr.type;
-
-        if (type == PERF_TYPE_RAW || type == PERF_TYPE_HARDWARE) {
-                /*
-                 * XXX minimal fix, see comment on perf_evsen__name, this static buffer
-                 * will go away together with event_name in the next devel cycle.
-                 */
-                static char bf[128];
-                perf_evsel__name(evsel, bf, sizeof(bf));
-                return bf;
-        }
-
-        if (evsel->name)
-                return evsel->name;
-
-        return __event_name(type, config);
-}
-
-const char *__event_name(int type, u64 config)
-{
-        static char buf[32];
-
-        if (type == PERF_TYPE_RAW) {
-                sprintf(buf, "raw 0x%" PRIx64, config);
-                return buf;
-        }
-
-        switch (type) {
-        case PERF_TYPE_HARDWARE:
-                return __perf_evsel__hw_name(config);
-
-        case PERF_TYPE_HW_CACHE: {
-                u8 cache_type, cache_op, cache_result;
-
-                cache_type   = (config >>  0) & 0xff;
-                if (cache_type > PERF_COUNT_HW_CACHE_MAX)
-                        return "unknown-ext-hardware-cache-type";
-
-                cache_op     = (config >>  8) & 0xff;
-                if (cache_op > PERF_COUNT_HW_CACHE_OP_MAX)
-                        return "unknown-ext-hardware-cache-op";
-
-                cache_result = (config >> 16) & 0xff;
-                if (cache_result > PERF_COUNT_HW_CACHE_RESULT_MAX)
-                        return "unknown-ext-hardware-cache-result";
-
-                if (!is_cache_op_valid(cache_type, cache_op))
-                        return "invalid-cache";
-
-                return event_cache_name(cache_type, cache_op, cache_result);
-        }
-
-        case PERF_TYPE_SOFTWARE:
-                if (config < PERF_COUNT_SW_MAX && sw_event_names[config])
-                        return sw_event_names[config];
-                return "unknown-software";
-
-        case PERF_TYPE_TRACEPOINT:
-                return tracepoint_id_to_name(config);
-
-        default:
-                break;
-        }
-
-        return "unknown";
-}
-
 static int add_event(struct list_head **_list, int *idx,
                      struct perf_event_attr *attr, char *name)
 {
@@ -373,19 +260,20 @@ static int add_event(struct list_head **_list, int *idx,
                 return -ENOMEM;
         }
 
-        evsel->name = strdup(name);
+        if (name)
+                evsel->name = strdup(name);
         list_add_tail(&evsel->node, list);
         *_list = list;
         return 0;
 }
 
-static int parse_aliases(char *str, const char *names[][MAX_ALIASES], int size)
+static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
 {
         int i, j;
         int n, longest = -1;
 
         for (i = 0; i < size; i++) {
-                for (j = 0; j < MAX_ALIASES && names[i][j]; j++) {
+                for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) {
                         n = strlen(names[i][j]);
                         if (n > longest && !strncasecmp(str, names[i][j], n))
                                 longest = n;
@@ -410,7 +298,7 @@ int parse_events_add_cache(struct list_head **list, int *idx,
          * No fallback - if we cannot get a clear cache type
          * then bail out:
          */
-        cache_type = parse_aliases(type, hw_cache,
+        cache_type = parse_aliases(type, perf_evsel__hw_cache,
                                    PERF_COUNT_HW_CACHE_MAX);
         if (cache_type == -1)
                 return -EINVAL;
@@ -423,18 +311,18 @@ int parse_events_add_cache(struct list_head **list, int *idx,
                 snprintf(name + n, MAX_NAME_LEN - n, "-%s\n", str);
 
                 if (cache_op == -1) {
-                        cache_op = parse_aliases(str, hw_cache_op,
+                        cache_op = parse_aliases(str, perf_evsel__hw_cache_op,
                                                  PERF_COUNT_HW_CACHE_OP_MAX);
                         if (cache_op >= 0) {
-                                if (!is_cache_op_valid(cache_type, cache_op))
+                                if (!perf_evsel__is_cache_op_valid(cache_type, cache_op))
                                         return -EINVAL;
                                 continue;
                         }
                 }
 
                 if (cache_result == -1) {
-                        cache_result = parse_aliases(str, hw_cache_result,
-                                                PERF_COUNT_HW_CACHE_RESULT_MAX);
+                        cache_result = parse_aliases(str, perf_evsel__hw_cache_result,
+                                                     PERF_COUNT_HW_CACHE_RESULT_MAX);
                         if (cache_result >= 0)
                                 continue;
                 }
@@ -549,21 +437,31 @@ parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
                 if (!type || !type[i])
                         break;
 
+#define CHECK_SET_TYPE(bit)             \
+do {                                    \
+        if (attr->bp_type & bit)        \
+                return -EINVAL;         \
+        else                            \
+                attr->bp_type |= bit;   \
+} while (0)
+
                 switch (type[i]) {
                 case 'r':
-                        attr->bp_type |= HW_BREAKPOINT_R;
+                        CHECK_SET_TYPE(HW_BREAKPOINT_R);
                         break;
                 case 'w':
-                        attr->bp_type |= HW_BREAKPOINT_W;
+                        CHECK_SET_TYPE(HW_BREAKPOINT_W);
                         break;
                 case 'x':
-                        attr->bp_type |= HW_BREAKPOINT_X;
+                        CHECK_SET_TYPE(HW_BREAKPOINT_X);
                         break;
                 default:
                         return -EINVAL;
                 }
         }
 
+#undef CHECK_SET_TYPE
+
         if (!attr->bp_type) /* Default */
                 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
 
@@ -574,7 +472,6 @@ int parse_events_add_breakpoint(struct list_head **list, int *idx,
                                 void *ptr, char *type)
 {
         struct perf_event_attr attr;
-        char name[MAX_NAME_LEN];
 
         memset(&attr, 0, sizeof(attr));
         attr.bp_addr = (unsigned long) ptr;
@@ -593,8 +490,7 @@ int parse_events_add_breakpoint(struct list_head **list, int *idx,
 
         attr.type = PERF_TYPE_BREAKPOINT;
 
-        snprintf(name, MAX_NAME_LEN, "mem:%p:%s", ptr, type ? type : "rw");
-        return add_event(list, idx, &attr, name);
+        return add_event(list, idx, &attr, NULL);
 }
 
 static int config_term(struct perf_event_attr *attr,
@@ -666,8 +562,7 @@ int parse_events_add_numeric(struct list_head **list, int *idx,
             config_attr(&attr, head_config, 1))
                 return -EINVAL;
 
-        return add_event(list, idx, &attr,
-                         (char *) __event_name(type, config));
+        return add_event(list, idx, &attr, NULL);
 }
 
 static int parse_events__is_name_term(struct parse_events__term *term)
@@ -675,8 +570,7 @@ static int parse_events__is_name_term(struct parse_events__term *term)
         return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
 }
 
-static char *pmu_event_name(struct perf_event_attr *attr,
-                            struct list_head *head_terms)
+static char *pmu_event_name(struct list_head *head_terms)
 {
         struct parse_events__term *term;
 
@@ -684,7 +578,7 @@ static char *pmu_event_name(struct perf_event_attr *attr,
                 if (parse_events__is_name_term(term))
                         return term->val.str;
 
-        return (char *) __event_name(PERF_TYPE_RAW, attr->config);
+        return NULL;
 }
 
 int parse_events_add_pmu(struct list_head **list, int *idx,
@@ -699,6 +593,9 @@ int parse_events_add_pmu(struct list_head **list, int *idx,
 
         memset(&attr, 0, sizeof(attr));
 
+        if (perf_pmu__check_alias(pmu, head_config))
+                return -EINVAL;
+
         /*
          * Configure hardcoded terms first, no need to check
          * return value when called with fail == 0 ;)
@@ -709,7 +606,7 @@ int parse_events_add_pmu(struct list_head **list, int *idx,
                 return -EINVAL;
 
         return add_event(list, idx, &attr,
-                         pmu_event_name(&attr, head_config));
+                         pmu_event_name(head_config));
 }
 
 void parse_events_update_lists(struct list_head *list_event,
@@ -787,27 +684,62 @@ int parse_events_modifier(struct list_head *list, char *str)
         return 0;
 }
 
-int parse_events(struct perf_evlist *evlist, const char *str, int unset __used)
+static int parse_events__scanner(const char *str, void *data, int start_token)
 {
-        LIST_HEAD(list);
-        LIST_HEAD(list_tmp);
         YY_BUFFER_STATE buffer;
-        int ret, idx = evlist->nr_entries;
+        void *scanner;
+        int ret;
+
+        ret = parse_events_lex_init_extra(start_token, &scanner);
+        if (ret)
+                return ret;
 
-        buffer = parse_events__scan_string(str);
+        buffer = parse_events__scan_string(str, scanner);
 
 #ifdef PARSER_DEBUG
         parse_events_debug = 1;
 #endif
-        ret = parse_events_parse(&list, &idx);
+        ret = parse_events_parse(data, scanner);
 
-        parse_events__flush_buffer(buffer);
-        parse_events__delete_buffer(buffer);
-        parse_events_lex_destroy();
+        parse_events__flush_buffer(buffer, scanner);
+        parse_events__delete_buffer(buffer, scanner);
+        parse_events_lex_destroy(scanner);
+        return ret;
+}
+
+/*
+ * parse event config string, return a list of event terms.
+ */
+int parse_events_terms(struct list_head *terms, const char *str)
+{
+        struct parse_events_data__terms data = {
+                .terms = NULL,
+        };
+        int ret;
 
+        ret = parse_events__scanner(str, &data, PE_START_TERMS);
         if (!ret) {
-                int entries = idx - evlist->nr_entries;
-                perf_evlist__splice_list_tail(evlist, &list, entries);
+                list_splice(data.terms, terms);
+                free(data.terms);
+                return 0;
+        }
+
+        parse_events__free_terms(data.terms);
+        return ret;
+}
+
+int parse_events(struct perf_evlist *evlist, const char *str, int unset __used)
+{
+        struct parse_events_data__events data = {
+                .list = LIST_HEAD_INIT(data.list),
+                .idx  = evlist->nr_entries,
+        };
+        int ret;
+
+        ret = parse_events__scanner(str, &data, PE_START_EVENTS);
+        if (!ret) {
+                int entries = data.idx - evlist->nr_entries;
+                perf_evlist__splice_list_tail(evlist, &data.list, entries);
                 return 0;
         }
 
@@ -946,16 +878,13 @@ int is_valid_tracepoint(const char *event_string)
         return 0;
 }
 
-void print_events_type(u8 type)
+static void __print_events_type(u8 type, struct event_symbol *syms,
+                                unsigned max)
 {
-        struct event_symbol *syms = event_symbols;
-        unsigned int i;
         char name[64];
+        unsigned i;
 
-        for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
-                if (type != syms->type)
-                        continue;
-
+        for (i = 0; i < max ; i++, syms++) {
                 if (strlen(syms->alias))
                         snprintf(name, sizeof(name),  "%s OR %s",
                                  syms->symbol, syms->alias);
@@ -967,19 +896,28 @@ void print_events_type(u8 type)
         }
 }
 
+void print_events_type(u8 type)
+{
+        if (type == PERF_TYPE_SOFTWARE)
+                __print_events_type(type, event_symbols_sw, PERF_COUNT_SW_MAX);
+        else
+                __print_events_type(type, event_symbols_hw, PERF_COUNT_HW_MAX);
+}
+
 int print_hwcache_events(const char *event_glob)
 {
         unsigned int type, op, i, printed = 0;
+        char name[64];
 
         for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
                 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
                         /* skip invalid cache type */
-                        if (!is_cache_op_valid(type, op))
+                        if (!perf_evsel__is_cache_op_valid(type, op))
                                 continue;
 
                         for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
-                                char *name = event_cache_name(type, op, i);
-
+                                __perf_evsel__hw_cache_type_op_res_name(type, op, i,
+                                                                        name, sizeof(name));
                                 if (event_glob != NULL && !strglobmatch(name, event_glob))
                                         continue;
 
@@ -993,26 +931,13 @@ int print_hwcache_events(const char *event_glob)
         return printed;
 }
 
-/*
- * Print the help text for the event symbols:
- */
-void print_events(const char *event_glob)
+static void print_symbol_events(const char *event_glob, unsigned type,
+                                struct event_symbol *syms, unsigned max)
 {
-        unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0;
-        struct event_symbol *syms = event_symbols;
+        unsigned i, printed = 0;
         char name[MAX_NAME_LEN];
 
-        printf("\n");
-        printf("List of pre-defined events (to be used in -e):\n");
-
-        for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
-                type = syms->type;
-
-                if (type != prev_type && printed) {
-                        printf("\n");
-                        printed = 0;
-                        ntypes_printed++;
-                }
+        for (i = 0; i < max; i++, syms++) {
 
                 if (event_glob != NULL && 
                     !(strglobmatch(syms->symbol, event_glob) ||
@@ -1023,17 +948,31 @@ void print_events(const char *event_glob)
                         snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
                 else
                         strncpy(name, syms->symbol, MAX_NAME_LEN);
-                printf("  %-50s [%s]\n", name,
-                        event_type_descriptors[type]);
 
-                prev_type = type;
-                ++printed;
+                printf("  %-50s [%s]\n", name, event_type_descriptors[type]);
+
+                printed++;
         }
 
-        if (ntypes_printed) {
-                printed = 0;
+        if (printed)
                 printf("\n");
-        }
+}
+
+/*
+ * Print the help text for the event symbols:
+ */
+void print_events(const char *event_glob)
+{
+
+        printf("\n");
+        printf("List of pre-defined events (to be used in -e):\n");
+
+        print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
+                            event_symbols_hw, PERF_COUNT_HW_MAX);
+
+        print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
+                            event_symbols_sw, PERF_COUNT_SW_MAX);
+
         print_hwcache_events(event_glob);
 
         if (event_glob != NULL)
@@ -1106,6 +1045,13 @@ int parse_events__term_str(struct parse_events__term **term,
                         config, str, 0);
 }
 
+int parse_events__term_clone(struct parse_events__term **new,
+                             struct parse_events__term *term)
+{
+        return new_term(new, term->type_val, term->type_term, term->config,
+                        term->val.str, term->val.num);
+}
+
 void parse_events__free_terms(struct list_head *terms)
 {
         struct parse_events__term *term, *h;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 8cac57ab4ee6..ee9c218a193c 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -26,13 +26,12 @@ extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
 extern bool have_tracepoints(struct list_head *evlist);
 
 const char *event_type(int type);
-const char *event_name(struct perf_evsel *event);
-extern const char *__event_name(int type, u64 config);
 
 extern int parse_events_option(const struct option *opt, const char *str,
                                int unset);
 extern int parse_events(struct perf_evlist *evlist, const char *str,
                         int unset);
+extern int parse_events_terms(struct list_head *terms, const char *str);
 extern int parse_filter(const struct option *opt, const char *str, int unset);
 
 #define EVENTS_HELP_MAX (128*1024)
@@ -63,11 +62,22 @@ struct parse_events__term {
         struct list_head list;
 };
 
+struct parse_events_data__events {
+        struct list_head list;
+        int idx;
+};
+
+struct parse_events_data__terms {
+        struct list_head *terms;
+};
+
 int parse_events__is_hardcoded_term(struct parse_events__term *term);
 int parse_events__term_num(struct parse_events__term **_term,
                            int type_term, char *config, long num);
 int parse_events__term_str(struct parse_events__term **_term,
                            int type_term, char *config, char *str);
+int parse_events__term_clone(struct parse_events__term **new,
+                             struct parse_events__term *term);
 void parse_events__free_terms(struct list_head *terms);
 int parse_events_modifier(struct list_head *list, char *str);
 int parse_events_add_tracepoint(struct list_head **list, int *idx,
@@ -83,8 +93,7 @@ int parse_events_add_pmu(struct list_head **list, int *idx,
                          char *pmu , struct list_head *head_config);
 void parse_events_update_lists(struct list_head *list_event,
                                struct list_head *list_all);
-void parse_events_error(struct list_head *list_all,
-                        int *idx, char const *msg);
+void parse_events_error(void *data, void *scanner, char const *msg);
 int parse_events__test(void);
 
 void print_events(const char *event_glob);
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 618a8e788399..384ca74c6b22 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -1,4 +1,6 @@
 
+%option reentrant
+%option bison-bridge
 %option prefix="parse_events_"
 %option stack
 
@@ -8,7 +10,10 @@
 #include "parse-events-bison.h"
 #include "parse-events.h"
 
-static int __value(char *str, int base, int token)
+char *parse_events_get_text(yyscan_t yyscanner);
+YYSTYPE *parse_events_get_lval(yyscan_t yyscanner);
+
+static int __value(YYSTYPE *yylval, char *str, int base, int token)
 {
         long num;
 
@@ -17,35 +22,48 @@ static int __value(char *str, int base, int token)
         if (errno)
                 return PE_ERROR;
 
-        parse_events_lval.num = num;
+        yylval->num = num;
         return token;
 }
 
-static int value(int base)
+static int value(yyscan_t scanner, int base)
 {
-        return __value(parse_events_text, base, PE_VALUE);
+        YYSTYPE *yylval = parse_events_get_lval(scanner);
+        char *text = parse_events_get_text(scanner);
+
+        return __value(yylval, text, base, PE_VALUE);
 }
 
-static int raw(void)
+static int raw(yyscan_t scanner)
 {
-        return __value(parse_events_text + 1, 16, PE_RAW);
+        YYSTYPE *yylval = parse_events_get_lval(scanner);
+        char *text = parse_events_get_text(scanner);
+
+        return __value(yylval, text + 1, 16, PE_RAW);
 }
 
-static int str(int token)
+static int str(yyscan_t scanner, int token)
 {
-        parse_events_lval.str = strdup(parse_events_text);
+        YYSTYPE *yylval = parse_events_get_lval(scanner);
+        char *text = parse_events_get_text(scanner);
+
+        yylval->str = strdup(text);
         return token;
 }
 
-static int sym(int type, int config)
+static int sym(yyscan_t scanner, int type, int config)
 {
-        parse_events_lval.num = (type << 16) + config;
-        return PE_VALUE_SYM;
+        YYSTYPE *yylval = parse_events_get_lval(scanner);
+
+        yylval->num = (type << 16) + config;
+        return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
 }
 
-static int term(int type)
+static int term(yyscan_t scanner, int type)
 {
-        parse_events_lval.num = type;
+        YYSTYPE *yylval = parse_events_get_lval(scanner);
+
+        yylval->num = type;
         return PE_TERM;
 }
 
@@ -58,28 +76,41 @@ num_hex		0x[a-fA-F0-9]+
 num_raw_hex     [a-fA-F0-9]+
 name            [a-zA-Z_*?][a-zA-Z0-9_*?]*
 modifier_event  [ukhpGH]{1,8}
-modifier_bp     [rwx]
+modifier_bp     [rwx]{1,3}
 
 %%
-cpu-cycles|cycles                               { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
-stalled-cycles-frontend|idle-cycles-frontend    { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
-stalled-cycles-backend|idle-cycles-backend      { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
-instructions                                    { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
-cache-references                                { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
-cache-misses                                    { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
-branch-instructions|branches                    { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
-branch-misses                                   { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
-bus-cycles                                      { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
-ref-cycles                                      { return sym(PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
-cpu-clock                                       { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
-task-clock                                      { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
-page-faults|faults                              { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
-minor-faults                                    { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
-major-faults                                    { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
-context-switches|cs                             { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
-cpu-migrations|migrations                       { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
-alignment-faults                                { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
-emulation-faults                                { return sym(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
+
+%{
+        {
+                int start_token;
+
+                start_token = (int) parse_events_get_extra(yyscanner);
+                if (start_token) {
+                        parse_events_set_extra(NULL, yyscanner);
+                        return start_token;
+                }
+         }
+%}
+
+cpu-cycles|cycles                               { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
+stalled-cycles-frontend|idle-cycles-frontend    { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
+stalled-cycles-backend|idle-cycles-backend      { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
+instructions                                    { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
+cache-references                                { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
+cache-misses                                    { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
+branch-instructions|branches                    { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
+branch-misses                                   { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
+bus-cycles                                      { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
+ref-cycles                                      { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
+cpu-clock                                       { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
+task-clock                                      { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
+page-faults|faults                              { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
+minor-faults                                    { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
+major-faults                                    { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
+context-switches|cs                             { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
+cpu-migrations|migrations                       { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
+alignment-faults                                { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
+emulation-faults                                { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
 
 L1-dcache|l1-d|l1d|L1-data              |
 L1-icache|l1-i|l1i|L1-instruction       |
@@ -87,14 +118,14 @@ LLC|L2					|
 dTLB|d-tlb|Data-TLB                     |
 iTLB|i-tlb|Instruction-TLB              |
 branch|branches|bpu|btb|bpc             |
-node                                    { return str(PE_NAME_CACHE_TYPE); }
+node                                    { return str(yyscanner, PE_NAME_CACHE_TYPE); }
 
 load|loads|read                         |
 store|stores|write                      |
 prefetch|prefetches                     |
 speculative-read|speculative-load       |
 refs|Reference|ops|access               |
-misses|miss                             { return str(PE_NAME_CACHE_OP_RESULT); }
+misses|miss                             { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
 
         /*
          * These are event config hardcoded term names to be specified
@@ -102,38 +133,39 @@ misses|miss				{ return str(PE_NAME_CACHE_OP_RESULT); }
          * so we can put them here directly. In case the we have a conflict
          * in future, this needs to go into '//' condition block.
          */
-config                  { return term(PARSE_EVENTS__TERM_TYPE_CONFIG); }
-config1                 { return term(PARSE_EVENTS__TERM_TYPE_CONFIG1); }
-config2                 { return term(PARSE_EVENTS__TERM_TYPE_CONFIG2); }
-name                    { return term(PARSE_EVENTS__TERM_TYPE_NAME); }
-period                  { return term(PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
-branch_type             { return term(PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
+config                  { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
+config1                 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
+config2                 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
+name                    { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
+period                  { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
+branch_type             { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
 
 mem:                    { BEGIN(mem); return PE_PREFIX_MEM; }
-r{num_raw_hex}          { return raw(); }
-{num_dec}               { return value(10); }
-{num_hex}               { return value(16); }
+r{num_raw_hex}          { return raw(yyscanner); }
+{num_dec}               { return value(yyscanner, 10); }
+{num_hex}               { return value(yyscanner, 16); }
 
-{modifier_event}        { return str(PE_MODIFIER_EVENT); }
-{name}                  { return str(PE_NAME); }
+{modifier_event}        { return str(yyscanner, PE_MODIFIER_EVENT); }
+{name}                  { return str(yyscanner, PE_NAME); }
 "/"                     { return '/'; }
 -                       { return '-'; }
 ,                       { return ','; }
 :                       { return ':'; }
 =                       { return '='; }
+\n                      { }
 
 <mem>{
-{modifier_bp}           { return str(PE_MODIFIER_BP); }
+{modifier_bp}           { return str(yyscanner, PE_MODIFIER_BP); }
 :                       { return ':'; }
-{num_dec}               { return value(10); }
-{num_hex}               { return value(16); }
+{num_dec}               { return value(yyscanner, 10); }
+{num_hex}               { return value(yyscanner, 16); }
         /*
          * We need to separate 'mem:' scanner part, in order to get specific
          * modifier bits parsed out. Otherwise we would need to handle PE_NAME
          * and we'd need to parse it manually. During the escape from <mem>
          * state we need to put the escaping char back, so we dont miss it.
          */
-.                       { unput(*parse_events_text); BEGIN(INITIAL); }
+.                       { unput(*yytext); BEGIN(INITIAL); }
         /*
          * We destroy the scanner after reaching EOF,
          * but anyway just to be sure get back to INIT state.
@@ -143,7 +175,7 @@ r{num_raw_hex}		{ return raw(); }
 
 %%
 
-int parse_events_wrap(void)
+int parse_events_wrap(void *scanner __used)
 {
         return 1;
 }
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 362cc59332ae..2bc5fbff2b5d 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -1,7 +1,8 @@
-
+%pure-parser
 %name-prefix "parse_events_"
-%parse-param {struct list_head *list_all}
-%parse-param {int *idx}
+%parse-param {void *_data}
+%parse-param {void *scanner}
+%lex-param {void* scanner}
 
 %{
 
@@ -12,8 +13,9 @@
 #include "types.h"
 #include "util.h"
 #include "parse-events.h"
+#include "parse-events-bison.h"
 
-extern int parse_events_lex (void);
+extern int parse_events_lex (YYSTYPE* lvalp, void* scanner);
 
 #define ABORT_ON(val) \
 do { \
@@ -23,14 +25,16 @@ do { \
 
 %}
 
-%token PE_VALUE PE_VALUE_SYM PE_RAW PE_TERM
+%token PE_START_EVENTS PE_START_TERMS
+%token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_RAW PE_TERM
 %token PE_NAME
 %token PE_MODIFIER_EVENT PE_MODIFIER_BP
 %token PE_NAME_CACHE_TYPE PE_NAME_CACHE_OP_RESULT
 %token PE_PREFIX_MEM PE_PREFIX_RAW
 %token PE_ERROR
 %type <num> PE_VALUE
-%type <num> PE_VALUE_SYM
+%type <num> PE_VALUE_SYM_HW
+%type <num> PE_VALUE_SYM_SW
 %type <num> PE_RAW
 %type <num> PE_TERM
 %type <str> PE_NAME
@@ -38,6 +42,7 @@ do { \
 %type <str> PE_NAME_CACHE_OP_RESULT
 %type <str> PE_MODIFIER_EVENT
 %type <str> PE_MODIFIER_BP
+%type <num> value_sym
 %type <head> event_config
 %type <term> event_term
 %type <head> event_pmu
@@ -58,24 +63,33 @@ do { \
 }
 %%
 
+start:
+PE_START_EVENTS events
+|
+PE_START_TERMS  terms
+
 events:
 events ',' event | event
 
 event:
 event_def PE_MODIFIER_EVENT
 {
+        struct parse_events_data__events *data = _data;
+
         /*
          * Apply modifier on all events added by single event definition
          * (there could be more events added for multiple tracepoint
          * definitions via '*?'.
          */
         ABORT_ON(parse_events_modifier($1, $2));
-        parse_events_update_lists($1, list_all);
+        parse_events_update_lists($1, &data->list);
 }
 |
 event_def
 {
-        parse_events_update_lists($1, list_all);
+        struct parse_events_data__events *data = _data;
+
+        parse_events_update_lists($1, &data->list);
 }
 
 event_def: event_pmu |
@@ -89,104 +103,131 @@ event_def: event_pmu |
 event_pmu:
 PE_NAME '/' event_config '/'
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_pmu(&list, idx, $1, $3));
+        ABORT_ON(parse_events_add_pmu(&list, &data->idx, $1, $3));
         parse_events__free_terms($3);
         $$ = list;
 }
 
+value_sym:
+PE_VALUE_SYM_HW
+|
+PE_VALUE_SYM_SW
+
 event_legacy_symbol:
-PE_VALUE_SYM '/' event_config '/'
+value_sym '/' event_config '/'
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
         int type = $1 >> 16;
         int config = $1 & 255;
 
-        ABORT_ON(parse_events_add_numeric(&list, idx, type, config, $3));
+        ABORT_ON(parse_events_add_numeric(&list, &data->idx,
+                                          type, config, $3));
         parse_events__free_terms($3);
         $$ = list;
 }
 |
-PE_VALUE_SYM sep_slash_dc
+value_sym sep_slash_dc
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
         int type = $1 >> 16;
         int config = $1 & 255;
 
-        ABORT_ON(parse_events_add_numeric(&list, idx, type, config, NULL));
+        ABORT_ON(parse_events_add_numeric(&list, &data->idx,
+                                          type, config, NULL));
         $$ = list;
 }
 
 event_legacy_cache:
 PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_cache(&list, idx, $1, $3, $5));
+        ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, $3, $5));
         $$ = list;
 }
 |
 PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_cache(&list, idx, $1, $3, NULL));
+        ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, $3, NULL));
         $$ = list;
 }
 |
 PE_NAME_CACHE_TYPE
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_cache(&list, idx, $1, NULL, NULL));
+        ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, NULL, NULL));
         $$ = list;
 }
 
 event_legacy_mem:
 PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_breakpoint(&list, idx, (void *) $2, $4));
+        ABORT_ON(parse_events_add_breakpoint(&list, &data->idx,
+                                             (void *) $2, $4));
         $$ = list;
 }
 |
 PE_PREFIX_MEM PE_VALUE sep_dc
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_breakpoint(&list, idx, (void *) $2, NULL));
+        ABORT_ON(parse_events_add_breakpoint(&list, &data->idx,
+                                             (void *) $2, NULL));
         $$ = list;
 }
 
 event_legacy_tracepoint:
 PE_NAME ':' PE_NAME
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_tracepoint(&list, idx, $1, $3));
+        ABORT_ON(parse_events_add_tracepoint(&list, &data->idx, $1, $3));
         $$ = list;
 }
 
 event_legacy_numeric:
 PE_VALUE ':' PE_VALUE
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_numeric(&list, idx, $1, $3, NULL));
+        ABORT_ON(parse_events_add_numeric(&list, &data->idx, $1, $3, NULL));
         $$ = list;
 }
 
 event_legacy_raw:
 PE_RAW
 {
+        struct parse_events_data__events *data = _data;
         struct list_head *list = NULL;
 
-        ABORT_ON(parse_events_add_numeric(&list, idx, PERF_TYPE_RAW, $1, NULL));
+        ABORT_ON(parse_events_add_numeric(&list, &data->idx,
+                                          PERF_TYPE_RAW, $1, NULL));
         $$ = list;
 }
 
+terms: event_config
+{
+        struct parse_events_data__terms *data = _data;
+        data->terms = $1;
+}
+
 event_config:
 event_config ',' event_term
 {
@@ -267,8 +308,7 @@ sep_slash_dc: '/' | ':' |
 
 %%
 
-void parse_events_error(struct list_head *list_all __used,
-                        int *idx __used,
+void parse_events_error(void *data __used, void *scanner __used,
                         char const *msg __used)
 {
 }
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index a119a5371699..67715a42cd6d 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -72,7 +72,7 @@ static int pmu_format(char *name, struct list_head *format)
                  "%s/bus/event_source/devices/%s/format", sysfs, name);
 
         if (stat(path, &st) < 0)
-                return -1;
+                return 0;       /* no error if format does not exist */
 
         if (pmu_format_parse(path, format))
                 return -1;
@@ -80,6 +80,114 @@ static int pmu_format(char *name, struct list_head *format)
         return 0;
 }
 
+static int perf_pmu__new_alias(struct list_head *list, char *name, FILE *file)
+{
+        struct perf_pmu__alias *alias;
+        char buf[256];
+        int ret;
+
+        ret = fread(buf, 1, sizeof(buf), file);
+        if (ret == 0)
+                return -EINVAL;
+        buf[ret] = 0;
+
+        alias = malloc(sizeof(*alias));
+        if (!alias)
+                return -ENOMEM;
+
+        INIT_LIST_HEAD(&alias->terms);
+        ret = parse_events_terms(&alias->terms, buf);
+        if (ret) {
+                free(alias);
+                return ret;
+        }
+
+        alias->name = strdup(name);
+        list_add_tail(&alias->list, list);
+        return 0;
+}
+
+/*
+ * Process all the sysfs attributes located under the directory
+ * specified in 'dir' parameter.
+ */
+static int pmu_aliases_parse(char *dir, struct list_head *head)
+{
+        struct dirent *evt_ent;
+        DIR *event_dir;
+        int ret = 0;
+
+        event_dir = opendir(dir);
+        if (!event_dir)
+                return -EINVAL;
+
+        while (!ret && (evt_ent = readdir(event_dir))) {
+                char path[PATH_MAX];
+                char *name = evt_ent->d_name;
+                FILE *file;
+
+                if (!strcmp(name, ".") || !strcmp(name, ".."))
+                        continue;
+
+                snprintf(path, PATH_MAX, "%s/%s", dir, name);
+
+                ret = -EINVAL;
+                file = fopen(path, "r");
+                if (!file)
+                        break;
+                ret = perf_pmu__new_alias(head, name, file);
+                fclose(file);
+        }
+
+        closedir(event_dir);
+        return ret;
+}
+
+/*
+ * Reading the pmu event aliases definition, which should be located at:
+ * /sys/bus/event_source/devices/<dev>/events as sysfs group attributes.
+ */
+static int pmu_aliases(char *name, struct list_head *head)
+{
+        struct stat st;
+        char path[PATH_MAX];
+        const char *sysfs;
+
+        sysfs = sysfs_find_mountpoint();
+        if (!sysfs)
+                return -1;
+
+        snprintf(path, PATH_MAX,
+                 "%s/bus/event_source/devices/%s/events", sysfs, name);
+
+        if (stat(path, &st) < 0)
+                return -1;
+
+        if (pmu_aliases_parse(path, head))
+                return -1;
+
+        return 0;
+}
+
+static int pmu_alias_terms(struct perf_pmu__alias *alias,
+                           struct list_head *terms)
+{
+        struct parse_events__term *term, *clone;
+        LIST_HEAD(list);
+        int ret;
+
+        list_for_each_entry(term, &alias->terms, list) {
+                ret = parse_events__term_clone(&clone, term);
+                if (ret) {
+                        parse_events__free_terms(&list);
+                        return ret;
+                }
+                list_add_tail(&clone->list, &list);
+        }
+        list_splice(&list, terms);
+        return 0;
+}
+
 /*
  * Reading/parsing the default pmu type value, which should be
  * located at:
@@ -118,6 +226,7 @@ static struct perf_pmu *pmu_lookup(char *name)
 {
         struct perf_pmu *pmu;
         LIST_HEAD(format);
+        LIST_HEAD(aliases);
         __u32 type;
 
         /*
@@ -135,10 +244,15 @@ static struct perf_pmu *pmu_lookup(char *name)
         if (!pmu)
                 return NULL;
 
+        pmu_aliases(name, &aliases);
+
         INIT_LIST_HEAD(&pmu->format);
+        INIT_LIST_HEAD(&pmu->aliases);
         list_splice(&format, &pmu->format);
+        list_splice(&aliases, &pmu->aliases);
         pmu->name = strdup(name);
         pmu->type = type;
+        list_add_tail(&pmu->list, &pmus);
         return pmu;
 }
 
@@ -279,6 +393,59 @@ int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
         return pmu_config(&pmu->format, attr, head_terms);
 }
 
+static struct perf_pmu__alias *pmu_find_alias(struct perf_pmu *pmu,
+                                              struct parse_events__term *term)
+{
+        struct perf_pmu__alias *alias;
+        char *name;
+
+        if (parse_events__is_hardcoded_term(term))
+                return NULL;
+
+        if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
+                if (term->val.num != 1)
+                        return NULL;
+                if (pmu_find_format(&pmu->format, term->config))
+                        return NULL;
+                name = term->config;
+        } else if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) {
+                if (strcasecmp(term->config, "event"))
+                        return NULL;
+                name = term->val.str;
+        } else {
+                return NULL;
+        }
+
+        list_for_each_entry(alias, &pmu->aliases, list) {
+                if (!strcasecmp(alias->name, name))
+                        return alias;
+        }
+        return NULL;
+}
+
+/*
+ * Find alias in the terms list and replace it with the terms
+ * defined for the alias
+ */
+int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms)
+{
+        struct parse_events__term *term, *h;
+        struct perf_pmu__alias *alias;
+        int ret;
+
+        list_for_each_entry_safe(term, h, head_terms, list) {
+                alias = pmu_find_alias(pmu, term);
+                if (!alias)
+                        continue;
+                ret = pmu_alias_terms(alias, &term->list);
+                if (ret)
+                        return ret;
+                list_del(&term->list);
+                free(term);
+        }
+        return 0;
+}
+
 int perf_pmu__new_format(struct list_head *list, char *name,
                          int config, unsigned long *bits)
 {
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 68c0db965e1f..535f2c5258ab 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -19,17 +19,26 @@ struct perf_pmu__format {
         struct list_head list;
 };
 
+struct perf_pmu__alias {
+        char *name;
+        struct list_head terms;
+        struct list_head list;
+};
+
 struct perf_pmu {
         char *name;
         __u32 type;
         struct list_head format;
+        struct list_head aliases;
         struct list_head list;
 };
 
 struct perf_pmu *perf_pmu__find(char *name);
 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
                      struct list_head *head_terms);
-
+int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms);
+struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
+                                struct list_head *head_terms);
 int perf_pmu_wrap(void);
 void perf_pmu_error(struct list_head *list, char *name, char const *msg);
 
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 4c1b3d72a1d2..02dfa19a467f 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -209,6 +209,10 @@ static void define_event_symbols(struct event_format *event,
                 define_symbolic_values(args->symbol.symbols, ev_name,
                                        cur_field_name);
                 break;
+        case PRINT_HEX:
+                define_event_symbols(event, ev_name, args->hex.field);
+                define_event_symbols(event, ev_name, args->hex.size);
+                break;
         case PRINT_BSTRING:
         case PRINT_DYNAMIC_ARRAY:
         case PRINT_STRING:
@@ -233,7 +237,8 @@ static void define_event_symbols(struct event_format *event,
                 define_event_symbols(event, ev_name, args->next);
 }
 
-static inline struct event_format *find_cache_event(int type)
+static inline
+struct event_format *find_cache_event(struct pevent *pevent, int type)
 {
         static char ev_name[256];
         struct event_format *event;
@@ -241,7 +246,7 @@ static inline struct event_format *find_cache_event(int type)
         if (events[type])
                 return events[type];
 
-        events[type] = event = trace_find_event(type);
+        events[type] = event = pevent_find_event(pevent, type);
         if (!event)
                 return NULL;
 
@@ -252,7 +257,8 @@ static inline struct event_format *find_cache_event(int type)
         return event;
 }
 
-static void perl_process_tracepoint(union perf_event *pevent __unused,
+static void perl_process_tracepoint(union perf_event *perf_event __unused,
+                                    struct pevent *pevent,
                                     struct perf_sample *sample,
                                     struct perf_evsel *evsel,
                                     struct machine *machine __unused,
@@ -275,13 +281,13 @@ static void perl_process_tracepoint(union perf_event *pevent __unused,
         if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
                 return;
 
-        type = trace_parse_common_type(data);
+        type = trace_parse_common_type(pevent, data);
 
-        event = find_cache_event(type);
+        event = find_cache_event(pevent, type);
         if (!event)
                 die("ug! no event found for type %d", type);
 
-        pid = trace_parse_common_pid(data);
+        pid = trace_parse_common_pid(pevent, data);
 
         sprintf(handler, "%s::%s", event->system, event->name);
 
@@ -314,7 +320,8 @@ static void perl_process_tracepoint(union perf_event *pevent __unused,
                                 offset = field->offset;
                         XPUSHs(sv_2mortal(newSVpv((char *)data + offset, 0)));
                 } else { /* FIELD_IS_NUMERIC */
-                        val = read_size(data + field->offset, field->size);
+                        val = read_size(pevent, data + field->offset,
+                                        field->size);
                         if (field->flags & FIELD_IS_SIGNED) {
                                 XPUSHs(sv_2mortal(newSViv(val)));
                         } else {
@@ -368,14 +375,15 @@ static void perl_process_event_generic(union perf_event *pevent __unused,
         LEAVE;
 }
 
-static void perl_process_event(union perf_event *pevent,
+static void perl_process_event(union perf_event *event,
+                               struct pevent *pevent,
                                struct perf_sample *sample,
                                struct perf_evsel *evsel,
                                struct machine *machine,
                                struct thread *thread)
 {
-        perl_process_tracepoint(pevent, sample, evsel, machine, thread);
-        perl_process_event_generic(pevent, sample, evsel, machine, thread);
+        perl_process_tracepoint(event, pevent, sample, evsel, machine, thread);
+        perl_process_event_generic(event, sample, evsel, machine, thread);
 }
 
 static void run_start_sub(void)
@@ -448,7 +456,7 @@ static int perl_stop_script(void)
         return 0;
 }
 
-static int perl_generate_script(const char *outfile)
+static int perl_generate_script(struct pevent *pevent, const char *outfile)
 {
         struct event_format *event = NULL;
         struct format_field *f;
@@ -495,7 +503,7 @@ static int perl_generate_script(const char *outfile)
         fprintf(ofp, "sub trace_begin\n{\n\t# optional\n}\n\n");
         fprintf(ofp, "sub trace_end\n{\n\t# optional\n}\n\n");
 
-        while ((event = trace_find_next_event(event))) {
+        while ((event = trace_find_next_event(pevent, event))) {
                 fprintf(ofp, "sub %s::%s\n{\n", event->system, event->name);
                 fprintf(ofp, "\tmy (");
 
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index acb9795286c4..ce4d1b0c3862 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -166,6 +166,10 @@ static void define_event_symbols(struct event_format *event,
                 define_values(PRINT_SYMBOL, args->symbol.symbols, ev_name,
                               cur_field_name);
                 break;
+        case PRINT_HEX:
+                define_event_symbols(event, ev_name, args->hex.field);
+                define_event_symbols(event, ev_name, args->hex.size);
+                break;
         case PRINT_STRING:
                 break;
         case PRINT_TYPE:
@@ -190,7 +194,8 @@ static void define_event_symbols(struct event_format *event,
                 define_event_symbols(event, ev_name, args->next);
 }
 
-static inline struct event_format *find_cache_event(int type)
+static inline
+struct event_format *find_cache_event(struct pevent *pevent, int type)
 {
         static char ev_name[256];
         struct event_format *event;
@@ -198,7 +203,7 @@ static inline struct event_format *find_cache_event(int type)
         if (events[type])
                 return events[type];
 
-        events[type] = event = trace_find_event(type);
+        events[type] = event = pevent_find_event(pevent, type);
         if (!event)
                 return NULL;
 
@@ -209,7 +214,8 @@ static inline struct event_format *find_cache_event(int type)
         return event;
 }
 
-static void python_process_event(union perf_event *pevent __unused,
+static void python_process_event(union perf_event *perf_event __unused,
+                                 struct pevent *pevent,
                                  struct perf_sample *sample,
                                  struct perf_evsel *evsel __unused,
                                  struct machine *machine __unused,
@@ -233,13 +239,13 @@ static void python_process_event(union perf_event *pevent __unused,
         if (!t)
                 Py_FatalError("couldn't create Python tuple");
 
-        type = trace_parse_common_type(data);
+        type = trace_parse_common_type(pevent, data);
 
-        event = find_cache_event(type);
+        event = find_cache_event(pevent, type);
         if (!event)
                 die("ug! no event found for type %d", type);
 
-        pid = trace_parse_common_pid(data);
+        pid = trace_parse_common_pid(pevent, data);
 
         sprintf(handler_name, "%s__%s", event->system, event->name);
 
@@ -284,7 +290,8 @@ static void python_process_event(union perf_event *pevent __unused,
                                 offset = field->offset;
                         obj = PyString_FromString((char *)data + offset);
                 } else { /* FIELD_IS_NUMERIC */
-                        val = read_size(data + field->offset, field->size);
+                        val = read_size(pevent, data + field->offset,
+                                        field->size);
                         if (field->flags & FIELD_IS_SIGNED) {
                                 if ((long long)val >= LONG_MIN &&
                                     (long long)val <= LONG_MAX)
@@ -438,7 +445,7 @@ out:
         return err;
 }
 
-static int python_generate_script(const char *outfile)
+static int python_generate_script(struct pevent *pevent, const char *outfile)
 {
         struct event_format *event = NULL;
         struct format_field *f;
@@ -487,7 +494,7 @@ static int python_generate_script(const char *outfile)
         fprintf(ofp, "def trace_end():\n");
         fprintf(ofp, "\tprint \"in trace_end\"\n\n");
 
-        while ((event = trace_find_next_event(event))) {
+        while ((event = trace_find_next_event(pevent, event))) {
                 fprintf(ofp, "def %s__%s(", event->system, event->name);
                 fprintf(ofp, "event_name, ");
                 fprintf(ofp, "context, ");
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 56142d0fb8d7..8e485592ca20 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -14,6 +14,7 @@
 #include "sort.h"
 #include "util.h"
 #include "cpumap.h"
+#include "event-parse.h"
 
 static int perf_session__open(struct perf_session *self, bool force)
 {
@@ -289,7 +290,6 @@ struct branch_info *machine__resolve_bstack(struct machine *self,
 }
 
 int machine__resolve_callchain(struct machine *self,
-                               struct perf_evsel *evsel __used,
                                struct thread *thread,
                                struct ip_callchain *chain,
                                struct symbol **parent)
@@ -1449,7 +1449,7 @@ size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
         ret += hists__fprintf_nr_events(&session->hists, fp);
 
         list_for_each_entry(pos, &session->evlist->entries, node) {
-                ret += fprintf(fp, "%s stats:\n", event_name(pos));
+                ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos));
                 ret += hists__fprintf_nr_events(&pos->hists, fp);
         }
 
@@ -1490,8 +1490,8 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 }
 
 void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
-                          struct machine *machine, struct perf_evsel *evsel,
-                          int print_sym, int print_dso, int print_symoffset)
+                          struct machine *machine, int print_sym,
+                          int print_dso, int print_symoffset)
 {
         struct addr_location al;
         struct callchain_cursor_node *node;
@@ -1505,7 +1505,7 @@ void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
 
         if (symbol_conf.use_callchain && sample->callchain) {
 
-                if (machine__resolve_callchain(machine, evsel, al.thread,
+                if (machine__resolve_callchain(machine, al.thread,
                                                 sample->callchain, NULL) != 0) {
                         if (verbose)
                                 error("Failed to resolve callchain. Skipping\n");
@@ -1611,3 +1611,58 @@ void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
         perf_header__fprintf_info(session, fp, full);
         fprintf(fp, "# ========\n#\n");
 }
+
+
+int __perf_session__set_tracepoints_handlers(struct perf_session *session,
+                                             const struct perf_evsel_str_handler *assocs,
+                                             size_t nr_assocs)
+{
+        struct perf_evlist *evlist = session->evlist;
+        struct event_format *format;
+        struct perf_evsel *evsel;
+        char *tracepoint, *name;
+        size_t i;
+        int err;
+
+        for (i = 0; i < nr_assocs; i++) {
+                err = -ENOMEM;
+                tracepoint = strdup(assocs[i].name);
+                if (tracepoint == NULL)
+                        goto out;
+
+                err = -ENOENT;
+                name = strchr(tracepoint, ':');
+                if (name == NULL)
+                        goto out_free;
+
+                *name++ = '\0';
+                format = pevent_find_event_by_name(session->pevent,
+                                                   tracepoint, name);
+                if (format == NULL) {
+                        /*
+                         * Adding a handler for an event not in the session,
+                         * just ignore it.
+                         */
+                        goto next;
+                }
+
+                evsel = perf_evlist__find_tracepoint_by_id(evlist, format->id);
+                if (evsel == NULL)
+                        goto next;
+
+                err = -EEXIST;
+                if (evsel->handler.func != NULL)
+                        goto out_free;
+                evsel->handler.func = assocs[i].handler;
+next:
+                free(tracepoint);
+        }
+
+        err = 0;
+out:
+        return err;
+
+out_free:
+        free(tracepoint);
+        goto out;
+}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 0c702e3f0a36..7c435bde6eb0 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -33,6 +33,7 @@ struct perf_session {
         struct machine          host_machine;
         struct rb_root          machines;
         struct perf_evlist      *evlist;
+        struct pevent           *pevent;
         /*
          * FIXME: Need to split this up further, we need global
          *        stats + per event stats. 'perf diff' also needs
@@ -151,11 +152,20 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
                                             unsigned int type);
 
 void perf_event__print_ip(union perf_event *event, struct perf_sample *sample,
-                          struct machine *machine, struct perf_evsel *evsel,
-                          int print_sym, int print_dso, int print_symoffset);
+                          struct machine *machine, int print_sym,
+                          int print_dso, int print_symoffset);
 
 int perf_session__cpu_bitmap(struct perf_session *session,
                              const char *cpu_list, unsigned long *cpu_bitmap);
 
 void perf_session__fprintf_info(struct perf_session *s, FILE *fp, bool full);
+
+struct perf_evsel_str_handler;
+
+int __perf_session__set_tracepoints_handlers(struct perf_session *session,
+                                             const struct perf_evsel_str_handler *assocs,
+                                             size_t nr_assocs);
+
+#define perf_session__set_tracepoints_handlers(session, array) \
+        __perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
 #endif /* __PERF_SESSION_H */
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index a27237430c5f..0f5a0a496bc4 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -241,6 +241,54 @@ struct sort_entry sort_sym = {
         .se_width_idx   = HISTC_SYMBOL,
 };
 
+/* --sort srcline */
+
+static int64_t
+sort__srcline_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+        return (int64_t)(right->ip - left->ip);
+}
+
+static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
+                                   size_t size, unsigned int width __used)
+{
+        FILE *fp;
+        char cmd[PATH_MAX + 2], *path = self->srcline, *nl;
+        size_t line_len;
+
+        if (path != NULL)
+                goto out_path;
+
+        snprintf(cmd, sizeof(cmd), "addr2line -e %s %016" PRIx64,
+                 self->ms.map->dso->long_name, self->ip);
+        fp = popen(cmd, "r");
+        if (!fp)
+                goto out_ip;
+
+        if (getline(&path, &line_len, fp) < 0 || !line_len)
+                goto out_ip;
+        fclose(fp);
+        self->srcline = strdup(path);
+        if (self->srcline == NULL)
+                goto out_ip;
+
+        nl = strchr(self->srcline, '\n');
+        if (nl != NULL)
+                *nl = '\0';
+        path = self->srcline;
+out_path:
+        return repsep_snprintf(bf, size, "%s", path);
+out_ip:
+        return repsep_snprintf(bf, size, "%-#*llx", BITS_PER_LONG / 4, self->ip);
+}
+
+struct sort_entry sort_srcline = {
+        .se_header      = "Source:Line",
+        .se_cmp         = sort__srcline_cmp,
+        .se_snprintf    = hist_entry__srcline_snprintf,
+        .se_width_idx   = HISTC_SRCLINE,
+};
+
 /* --sort parent */
 
 static int64_t
@@ -439,6 +487,7 @@ static struct sort_dimension sort_dimensions[] = {
         DIM(SORT_PARENT, "parent", sort_parent),
         DIM(SORT_CPU, "cpu", sort_cpu),
         DIM(SORT_MISPREDICT, "mispredict", sort_mispredict),
+        DIM(SORT_SRCLINE, "srcline", sort_srcline),
 };
 
 int sort_dimension__add(const char *tok)
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 472aa5a63a58..e724b26acd51 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -71,6 +71,7 @@ struct hist_entry {
         char                    level;
         bool                    used;
         u8                      filtered;
+        char                    *srcline;
         struct symbol           *parent;
         union {
                 unsigned long     position;
@@ -93,6 +94,7 @@ enum sort_type {
         SORT_SYM_FROM,
         SORT_SYM_TO,
         SORT_MISPREDICT,
+        SORT_SRCLINE,
 };
 
 /*
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index d5836382ff2c..199bc4d8905d 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -313,3 +313,25 @@ int strtailcmp(const char *s1, const char *s2)
         return 0;
 }
 
+/**
+ * rtrim - Removes trailing whitespace from @s.
+ * @s: The string to be stripped.
+ *
+ * Note that the first trailing whitespace is replaced with a %NUL-terminator
+ * in the given string @s. Returns @s.
+ */
+char *rtrim(char *s)
+{
+        size_t size = strlen(s);
+        char *end;
+
+        if (!size)
+                return s;
+
+        end = s + size - 1;
+        while (end >= s && isspace(*end))
+                end--;
+        *(end + 1) = '\0';
+
+        return s;
+}
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 3e2e5ea0f03f..50958bbeb26a 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1478,14 +1478,31 @@ static int elf_read_build_id(Elf *elf, void *bf, size_t size)
                 goto out;
         }
 
-        sec = elf_section_by_name(elf, &ehdr, &shdr,
-                                  ".note.gnu.build-id", NULL);
-        if (sec == NULL) {
+        /*
+         * Check following sections for notes:
+         *   '.note.gnu.build-id'
+         *   '.notes'
+         *   '.note' (VDSO specific)
+         */
+        do {
+                sec = elf_section_by_name(elf, &ehdr, &shdr,
+                                          ".note.gnu.build-id", NULL);
+                if (sec)
+                        break;
+
                 sec = elf_section_by_name(elf, &ehdr, &shdr,
                                           ".notes", NULL);
-                if (sec == NULL)
-                        goto out;
-        }
+                if (sec)
+                        break;
+
+                sec = elf_section_by_name(elf, &ehdr, &shdr,
+                                          ".note", NULL);
+                if (sec)
+                        break;
+
+                return err;
+
+        } while (0);
 
         data = elf_getdata(sec, NULL);
         if (data == NULL)
@@ -1590,11 +1607,62 @@ out:
         return err;
 }
 
+static int filename__read_debuglink(const char *filename,
+                                    char *debuglink, size_t size)
+{
+        int fd, err = -1;
+        Elf *elf;
+        GElf_Ehdr ehdr;
+        GElf_Shdr shdr;
+        Elf_Data *data;
+        Elf_Scn *sec;
+        Elf_Kind ek;
+
+        fd = open(filename, O_RDONLY);
+        if (fd < 0)
+                goto out;
+
+        elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
+        if (elf == NULL) {
+                pr_debug2("%s: cannot read %s ELF file.\n", __func__, filename);
+                goto out_close;
+        }
+
+        ek = elf_kind(elf);
+        if (ek != ELF_K_ELF)
+                goto out_close;
+
+        if (gelf_getehdr(elf, &ehdr) == NULL) {
+                pr_err("%s: cannot get elf header.\n", __func__);
+                goto out_close;
+        }
+
+        sec = elf_section_by_name(elf, &ehdr, &shdr,
+                                  ".gnu_debuglink", NULL);
+        if (sec == NULL)
+                goto out_close;
+
+        data = elf_getdata(sec, NULL);
+        if (data == NULL)
+                goto out_close;
+
+        /* the start of this section is a zero-terminated string */
+        strncpy(debuglink, data->d_buf, size);
+
+        elf_end(elf);
+
+out_close:
+        close(fd);
+out:
+        return err;
+}
+
 char dso__symtab_origin(const struct dso *dso)
 {
         static const char origin[] = {
                 [SYMTAB__KALLSYMS]            = 'k',
                 [SYMTAB__JAVA_JIT]            = 'j',
+                [SYMTAB__DEBUGLINK]           = 'l',
                 [SYMTAB__BUILD_ID_CACHE]      = 'B',
                 [SYMTAB__FEDORA_DEBUGINFO]    = 'f',
                 [SYMTAB__UBUNTU_DEBUGINFO]    = 'u',
@@ -1662,10 +1730,22 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter)
          */
         want_symtab = 1;
 restart:
-        for (dso->symtab_type = SYMTAB__BUILD_ID_CACHE;
+        for (dso->symtab_type = SYMTAB__DEBUGLINK;
              dso->symtab_type != SYMTAB__NOT_FOUND;
              dso->symtab_type++) {
                 switch (dso->symtab_type) {
+                case SYMTAB__DEBUGLINK: {
+                        char *debuglink;
+                        strncpy(name, dso->long_name, size);
+                        debuglink = name + dso->long_name_len;
+                        while (debuglink != name && *debuglink != '/')
+                                debuglink--;
+                        if (*debuglink == '/')
+                                debuglink++;
+                        filename__read_debuglink(dso->long_name, debuglink,
+                                                 size - (debuglink - name));
+                        }
+                        break;
                 case SYMTAB__BUILD_ID_CACHE:
                         /* skip the locally configured cache if a symfs is given */
                         if (symbol_conf.symfs[0] ||
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index af0752b1aca1..a884b99017f0 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -257,6 +257,7 @@ enum symtab_type {
         SYMTAB__KALLSYMS = 0,
         SYMTAB__GUEST_KALLSYMS,
         SYMTAB__JAVA_JIT,
+        SYMTAB__DEBUGLINK,
         SYMTAB__BUILD_ID_CACHE,
         SYMTAB__FEDORA_DEBUGINFO,
         SYMTAB__UBUNTU_DEBUGINFO,
diff --git a/tools/perf/util/top.c b/tools/perf/util/top.c
index abe0e8e95068..7eeebcee291c 100644
--- a/tools/perf/util/top.c
+++ b/tools/perf/util/top.c
@@ -65,7 +65,7 @@ size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
                                 top->freq ? "Hz" : "");
         }
 
-        ret += SNPRINTF(bf + ret, size - ret, "%s", event_name(top->sym_evsel));
+        ret += SNPRINTF(bf + ret, size - ret, "%s", perf_evsel__name(top->sym_evsel));
 
         ret += SNPRINTF(bf + ret, size - ret, "], ");
 
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 5dd3b5ec8411..0715c843c2e7 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -32,29 +32,25 @@ int header_page_size_size;
 int header_page_ts_size;
 int header_page_data_offset;
 
-struct pevent *perf_pevent;
-static struct pevent *pevent;
-
 bool latency_format;
 
-int read_trace_init(int file_bigendian, int host_bigendian)
+struct pevent *read_trace_init(int file_bigendian, int host_bigendian)
 {
-        if (pevent)
-                return 0;
-
-        perf_pevent = pevent_alloc();
-        pevent = perf_pevent;
+        struct pevent *pevent = pevent_alloc();
 
-        pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
-        pevent_set_file_bigendian(pevent, file_bigendian);
-        pevent_set_host_bigendian(pevent, host_bigendian);
+        if (pevent != NULL) {
+                pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
+                pevent_set_file_bigendian(pevent, file_bigendian);
+                pevent_set_host_bigendian(pevent, host_bigendian);
+        }
 
-        return 0;
+        return pevent;
 }
 
 static int get_common_field(struct scripting_context *context,
                             int *offset, int *size, const char *type)
 {
+        struct pevent *pevent = context->pevent;
         struct event_format *event;
         struct format_field *field;
 
@@ -150,7 +146,7 @@ void *raw_field_ptr(struct event_format *event, const char *name, void *data)
         return data + field->offset;
 }
 
-int trace_parse_common_type(void *data)
+int trace_parse_common_type(struct pevent *pevent, void *data)
 {
         struct pevent_record record;
 
@@ -158,7 +154,7 @@ int trace_parse_common_type(void *data)
         return pevent_data_type(pevent, &record);
 }
 
-int trace_parse_common_pid(void *data)
+int trace_parse_common_pid(struct pevent *pevent, void *data)
 {
         struct pevent_record record;
 
@@ -166,27 +162,21 @@ int trace_parse_common_pid(void *data)
         return pevent_data_pid(pevent, &record);
 }
 
-unsigned long long read_size(void *ptr, int size)
+unsigned long long read_size(struct pevent *pevent, void *ptr, int size)
 {
         return pevent_read_number(pevent, ptr, size);
 }
 
-struct event_format *trace_find_event(int type)
-{
-        return pevent_find_event(pevent, type);
-}
-
-
-void print_trace_event(int cpu, void *data, int size)
+void print_trace_event(struct pevent *pevent, int cpu, void *data, int size)
 {
         struct event_format *event;
         struct pevent_record record;
         struct trace_seq s;
         int type;
 
-        type = trace_parse_common_type(data);
+        type = trace_parse_common_type(pevent, data);
 
-        event = trace_find_event(type);
+        event = pevent_find_event(pevent, type);
         if (!event) {
                 warning("ug! no event found for type %d", type);
                 return;
@@ -202,8 +192,8 @@ void print_trace_event(int cpu, void *data, int size)
         trace_seq_do_printf(&s);
 }
 
-void print_event(int cpu, void *data, int size, unsigned long long nsecs,
-                  char *comm)
+void print_event(struct pevent *pevent, int cpu, void *data, int size,
+                 unsigned long long nsecs, char *comm)
 {
         struct pevent_record record;
         struct trace_seq s;
@@ -226,7 +216,8 @@ void print_event(int cpu, void *data, int size, unsigned long long nsecs,
         printf("\n");
 }
 
-void parse_proc_kallsyms(char *file, unsigned int size __unused)
+void parse_proc_kallsyms(struct pevent *pevent,
+                         char *file, unsigned int size __unused)
 {
         unsigned long long addr;
         char *func;
@@ -257,7 +248,8 @@ void parse_proc_kallsyms(char *file, unsigned int size __unused)
         }
 }
 
-void parse_ftrace_printk(char *file, unsigned int size __unused)
+void parse_ftrace_printk(struct pevent *pevent,
+                         char *file, unsigned int size __unused)
 {
         unsigned long long addr;
         char *printk;
@@ -281,17 +273,19 @@ void parse_ftrace_printk(char *file, unsigned int size __unused)
         }
 }
 
-int parse_ftrace_file(char *buf, unsigned long size)
+int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size)
 {
         return pevent_parse_event(pevent, buf, size, "ftrace");
 }
 
-int parse_event_file(char *buf, unsigned long size, char *sys)
+int parse_event_file(struct pevent *pevent,
+                     char *buf, unsigned long size, char *sys)
 {
         return pevent_parse_event(pevent, buf, size, sys);
 }
 
-struct event_format *trace_find_next_event(struct event_format *event)
+struct event_format *trace_find_next_event(struct pevent *pevent,
+                                           struct event_format *event)
 {
         static int idx;
 
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index f097e0dd6c5c..719ed74a8565 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -114,20 +114,20 @@ static void skip(int size)
         };
 }
 
-static unsigned int read4(void)
+static unsigned int read4(struct pevent *pevent)
 {
         unsigned int data;
 
         read_or_die(&data, 4);
-        return __data2host4(perf_pevent, data);
+        return __data2host4(pevent, data);
 }
 
-static unsigned long long read8(void)
+static unsigned long long read8(struct pevent *pevent)
 {
         unsigned long long data;
 
         read_or_die(&data, 8);
-        return __data2host8(perf_pevent, data);
+        return __data2host8(pevent, data);
 }
 
 static char *read_string(void)
@@ -168,12 +168,12 @@ static char *read_string(void)
         return str;
 }
 
-static void read_proc_kallsyms(void)
+static void read_proc_kallsyms(struct pevent *pevent)
 {
         unsigned int size;
         char *buf;
 
-        size = read4();
+        size = read4(pevent);
         if (!size)
                 return;
 
@@ -181,29 +181,29 @@ static void read_proc_kallsyms(void)
         read_or_die(buf, size);
         buf[size] = '\0';
 
-        parse_proc_kallsyms(buf, size);
+        parse_proc_kallsyms(pevent, buf, size);
 
         free(buf);
 }
 
-static void read_ftrace_printk(void)
+static void read_ftrace_printk(struct pevent *pevent)
 {
         unsigned int size;
         char *buf;
 
-        size = read4();
+        size = read4(pevent);
         if (!size)
                 return;
 
         buf = malloc_or_die(size);
         read_or_die(buf, size);
 
-        parse_ftrace_printk(buf, size);
+        parse_ftrace_printk(pevent, buf, size);
 
         free(buf);
 }
 
-static void read_header_files(void)
+static void read_header_files(struct pevent *pevent)
 {
         unsigned long long size;
         char *header_event;
@@ -214,7 +214,7 @@ static void read_header_files(void)
         if (memcmp(buf, "header_page", 12) != 0)
                 die("did not read header page");
 
-        size = read8();
+        size = read8(pevent);
         skip(size);
 
         /*
@@ -227,47 +227,48 @@ static void read_header_files(void)
         if (memcmp(buf, "header_event", 13) != 0)
                 die("did not read header event");
 
-        size = read8();
+        size = read8(pevent);
         header_event = malloc_or_die(size);
         read_or_die(header_event, size);
         free(header_event);
 }
 
-static void read_ftrace_file(unsigned long long size)
+static void read_ftrace_file(struct pevent *pevent, unsigned long long size)
 {
         char *buf;
 
         buf = malloc_or_die(size);
         read_or_die(buf, size);
-        parse_ftrace_file(buf, size);
+        parse_ftrace_file(pevent, buf, size);
         free(buf);
 }
 
-static void read_event_file(char *sys, unsigned long long size)
+static void read_event_file(struct pevent *pevent, char *sys,
+                            unsigned long long size)
 {
         char *buf;
 
         buf = malloc_or_die(size);
         read_or_die(buf, size);
-        parse_event_file(buf, size, sys);
+        parse_event_file(pevent, buf, size, sys);
         free(buf);
 }
 
-static void read_ftrace_files(void)
+static void read_ftrace_files(struct pevent *pevent)
 {
         unsigned long long size;
         int count;
         int i;
 
-        count = read4();
+        count = read4(pevent);
 
         for (i = 0; i < count; i++) {
-                size = read8();
-                read_ftrace_file(size);
+                size = read8(pevent);
+                read_ftrace_file(pevent, size);
         }
 }
 
-static void read_event_files(void)
+static void read_event_files(struct pevent *pevent)
 {
         unsigned long long size;
         char *sys;
@@ -275,15 +276,15 @@ static void read_event_files(void)
         int count;
         int i,x;
 
-        systems = read4();
+        systems = read4(pevent);
 
         for (i = 0; i < systems; i++) {
                 sys = read_string();
 
-                count = read4();
+                count = read4(pevent);
                 for (x=0; x < count; x++) {
-                        size = read8();
-                        read_event_file(sys, size);
+                        size = read8(pevent);
+                        read_event_file(pevent, sys, size);
                 }
         }
 }
@@ -377,7 +378,7 @@ static int calc_index(void *ptr, int cpu)
         return (unsigned long)ptr - (unsigned long)cpu_data[cpu].page;
 }
 
-struct pevent_record *trace_peek_data(int cpu)
+struct pevent_record *trace_peek_data(struct pevent *pevent, int cpu)
 {
         struct pevent_record *data;
         void *page = cpu_data[cpu].page;
@@ -399,15 +400,15 @@ struct pevent_record *trace_peek_data(int cpu)
                 /* FIXME: handle header page */
                 if (header_page_ts_size != 8)
                         die("expected a long long type for timestamp");
-                cpu_data[cpu].timestamp = data2host8(perf_pevent, ptr);
+                cpu_data[cpu].timestamp = data2host8(pevent, ptr);
                 ptr += 8;
                 switch (header_page_size_size) {
                 case 4:
-                        cpu_data[cpu].page_size = data2host4(perf_pevent, ptr);
+                        cpu_data[cpu].page_size = data2host4(pevent, ptr);
                         ptr += 4;
                         break;
                 case 8:
-                        cpu_data[cpu].page_size = data2host8(perf_pevent, ptr);
+                        cpu_data[cpu].page_size = data2host8(pevent, ptr);
                         ptr += 8;
                         break;
                 default:
@@ -421,10 +422,10 @@ read_again:
 
         if (idx >= cpu_data[cpu].page_size) {
                 get_next_page(cpu);
-                return trace_peek_data(cpu);
+                return trace_peek_data(pevent, cpu);
         }
 
-        type_len_ts = data2host4(perf_pevent, ptr);
+        type_len_ts = data2host4(pevent, ptr);
         ptr += 4;
 
         type_len = type_len4host(type_len_ts);
@@ -434,14 +435,14 @@ read_again:
         case RINGBUF_TYPE_PADDING:
                 if (!delta)
                         die("error, hit unexpected end of page");
-                length = data2host4(perf_pevent, ptr);
+                length = data2host4(pevent, ptr);
                 ptr += 4;
                 length *= 4;
                 ptr += length;
                 goto read_again;
 
         case RINGBUF_TYPE_TIME_EXTEND:
-                extend = data2host4(perf_pevent, ptr);
+                extend = data2host4(pevent, ptr);
                 ptr += 4;
                 extend <<= TS_SHIFT;
                 extend += delta;
@@ -452,7 +453,7 @@ read_again:
                 ptr += 12;
                 break;
         case 0:
-                length = data2host4(perf_pevent, ptr);
+                length = data2host4(pevent, ptr);
                 ptr += 4;
                 die("here! length=%d", length);
                 break;
@@ -477,17 +478,17 @@ read_again:
         return data;
 }
 
-struct pevent_record *trace_read_data(int cpu)
+struct pevent_record *trace_read_data(struct pevent *pevent, int cpu)
 {
         struct pevent_record *data;
 
-        data = trace_peek_data(cpu);
+        data = trace_peek_data(pevent, cpu);
         cpu_data[cpu].next = NULL;
 
         return data;
 }
 
-ssize_t trace_report(int fd, bool __repipe)
+ssize_t trace_report(int fd, struct pevent **ppevent, bool __repipe)
 {
         char buf[BUFSIZ];
         char test[] = { 23, 8, 68 };
@@ -519,30 +520,32 @@ ssize_t trace_report(int fd, bool __repipe)
         file_bigendian = buf[0];
         host_bigendian = bigendian();
 
-        read_trace_init(file_bigendian, host_bigendian);
+        *ppevent = read_trace_init(file_bigendian, host_bigendian);
+        if (*ppevent == NULL)
+                die("read_trace_init failed");
 
         read_or_die(buf, 1);
         long_size = buf[0];
 
-        page_size = read4();
+        page_size = read4(*ppevent);
 
-        read_header_files();
+        read_header_files(*ppevent);
 
-        read_ftrace_files();
-        read_event_files();
-        read_proc_kallsyms();
-        read_ftrace_printk();
+        read_ftrace_files(*ppevent);
+        read_event_files(*ppevent);
+        read_proc_kallsyms(*ppevent);
+        read_ftrace_printk(*ppevent);
 
         size = calc_data_size - 1;
         calc_data_size = 0;
         repipe = false;
 
         if (show_funcs) {
-                pevent_print_funcs(perf_pevent);
+                pevent_print_funcs(*ppevent);
                 return size;
         }
         if (show_printk) {
-                pevent_print_printk(perf_pevent);
+                pevent_print_printk(*ppevent);
                 return size;
         }
 
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index 18ae6c1831d3..474aa7a7df43 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -36,6 +36,7 @@ static int stop_script_unsupported(void)
 }
 
 static void process_event_unsupported(union perf_event *event __unused,
+                                      struct pevent *pevent __unused,
                                       struct perf_sample *sample __unused,
                                       struct perf_evsel *evsel __unused,
                                       struct machine *machine __unused,
@@ -61,7 +62,8 @@ static int python_start_script_unsupported(const char *script __unused,
         return -1;
 }
 
-static int python_generate_script_unsupported(const char *outfile __unused)
+static int python_generate_script_unsupported(struct pevent *pevent __unused,
+                                              const char *outfile __unused)
 {
         print_python_unsupported_msg();
 
@@ -122,7 +124,8 @@ static int perl_start_script_unsupported(const char *script __unused,
         return -1;
 }
 
-static int perl_generate_script_unsupported(const char *outfile __unused)
+static int perl_generate_script_unsupported(struct pevent *pevent __unused,
+                                            const char *outfile __unused)
 {
         print_perl_unsupported_msg();
 
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 639852ac1117..8fef1d6687b7 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -8,6 +8,7 @@
 struct machine;
 struct perf_sample;
 union perf_event;
+struct perf_tool;
 struct thread;
 
 extern int header_page_size_size;
@@ -29,35 +30,36 @@ enum {
 
 int bigendian(void);
 
-int read_trace_init(int file_bigendian, int host_bigendian);
-void print_trace_event(int cpu, void *data, int size);
+struct pevent *read_trace_init(int file_bigendian, int host_bigendian);
+void print_trace_event(struct pevent *pevent, int cpu, void *data, int size);
 
-void print_event(int cpu, void *data, int size, unsigned long long nsecs,
-                  char *comm);
+void print_event(struct pevent *pevent, int cpu, void *data, int size,
+                 unsigned long long nsecs, char *comm);
 
-int parse_ftrace_file(char *buf, unsigned long size);
-int parse_event_file(char *buf, unsigned long size, char *sys);
+int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size);
+int parse_event_file(struct pevent *pevent,
+                     char *buf, unsigned long size, char *sys);
 
-struct pevent_record *trace_peek_data(int cpu);
-struct event_format *trace_find_event(int type);
+struct pevent_record *trace_peek_data(struct pevent *pevent, int cpu);
 
 unsigned long long
 raw_field_value(struct event_format *event, const char *name, void *data);
 void *raw_field_ptr(struct event_format *event, const char *name, void *data);
 
-void parse_proc_kallsyms(char *file, unsigned int size __unused);
-void parse_ftrace_printk(char *file, unsigned int size __unused);
+void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size);
+void parse_ftrace_printk(struct pevent *pevent, char *file, unsigned int size);
 
-ssize_t trace_report(int fd, bool repipe);
+ssize_t trace_report(int fd, struct pevent **pevent, bool repipe);
 
-int trace_parse_common_type(void *data);
-int trace_parse_common_pid(void *data);
+int trace_parse_common_type(struct pevent *pevent, void *data);
+int trace_parse_common_pid(struct pevent *pevent, void *data);
 
-struct event_format *trace_find_next_event(struct event_format *event);
-unsigned long long read_size(void *ptr, int size);
+struct event_format *trace_find_next_event(struct pevent *pevent,
+                                           struct event_format *event);
+unsigned long long read_size(struct pevent *pevent, void *ptr, int size);
 unsigned long long eval_flag(const char *flag);
 
-struct pevent_record *trace_read_data(int cpu);
+struct pevent_record *trace_read_data(struct pevent *pevent, int cpu);
 int read_tracing_data(int fd, struct list_head *pattrs);
 
 struct tracing_data {
@@ -77,11 +79,12 @@ struct scripting_ops {
         int (*start_script) (const char *script, int argc, const char **argv);
         int (*stop_script) (void);
         void (*process_event) (union perf_event *event,
+                               struct pevent *pevent,
                                struct perf_sample *sample,
                                struct perf_evsel *evsel,
                                struct machine *machine,
                                struct thread *thread);
-        int (*generate_script) (const char *outfile);
+        int (*generate_script) (struct pevent *pevent, const char *outfile);
 };
 
 int script_spec_register(const char *spec, struct scripting_ops *ops);
@@ -90,6 +93,7 @@ void setup_perl_scripting(void);
 void setup_python_scripting(void);
 
 struct scripting_context {
+        struct pevent *pevent;
         void *event_data;
 };
 
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 2daaedb83d84..b13c7331eaf8 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -264,4 +264,6 @@ bool is_power_of_2(unsigned long n)
 
 size_t hex_width(u64 v);
 
+char *rtrim(char *s);
+
 #endif