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* [PATCH] powerpc: Fix clock spreading setting on some powermacsBenjamin Herrenschmidt2005-12-11
| | | | | | | | | The code that sets the clock spreading feature of the Intrepid ASIC must not be run on some machine models or those won't boot. This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fix SLB flushing path in hugepageDavid Gibson2005-12-09
| | | | | | | | | | | | | | | On ppc64, when opening a new hugepage region, we need to make sure any old normal-page SLBs for the area are flushed on all CPUs. There was a bug in this logic - after putting the new hugepage area masks into the thread structure, we copied it into the paca (read by the SLB miss handler) only on one CPU, not on all. This could cause incorrect SLB entries to be loaded when a multithreaded program was running simultaneously on several CPUs. This patch corrects the error, copying the context information into the PACA on all CPUs using the mm in question before flushing any existing SLB entries. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add missing icache flushes for hugepagesDavid Gibson2005-12-09
| | | | | | | | | | | | | | | | | | On most powerpc CPUs, the dcache and icache are not coherent so between writing and executing a page, the caches must be flushed. Userspace programs assume pages given to them by the kernel are icache clean, so we must do this flush between the kernel clearing a page and it being mapped into userspace for execute. We were not doing this for hugepages, this patch corrects the situation. We use the same lazy mechanism as we use for normal pages, delaying the flush until userspace actually attempts to execute from the page in question. Tested on G5. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Set cache info defaultsOlof Johansson2005-12-08
| | | | | | | | | | | | | | | | | | | | | | | Cache info is setup by walking the device tree in initialize_cache_info(). However, icache_flush_range might be called before that, in slb_initialize()->patch_slb_encoding, which modifies the load immediate instructions used with SLB fault code. Not only that, but depending on memory layout, we might take SLB faults during unflatten_device_tree. So that fault will load an SLB entry that might not contain the right LLP flags for the segment. Either we can walk the flattened device tree to setup cache info, or we can pick the known defaults that are known to work. Doing it in the flattened device tree is hairier since we need to know the machine type to know what property to look for, etc, etc. For now, it's just easier to go with the defaults. Worst thing that happens from it is that we might waste a few cycles doing too small dcbst/icbi increments. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] Fix windfarm model-id tableMichal Ostrowski2005-12-08
| | | | | | | | | | model_id fields of wf_smu_sys_all_params should match the model ID they are supposed to represent (as commented). Fixes windfarm on some iMac 8,1 models. Signed-off-by: Michal Ostrowski <mostrows at watson ibm com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Remove debug code in hash pathBenjamin Herrenschmidt2005-12-08
| | | | | | | | | Some debug code wasn't properly removed from the initial 64k pages patch, and while it's harmless, it's also slowing down significantly a very hot code path, thus it should really be removed. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fix a huge page bugBenjamin Herrenschmidt2005-12-08
| | | | | | | | | | The 64k pages patch changed the meaning of one argument passed to the low level hash functions (from "large" it became "psize" or page size index), but one of the call sites wasn't properly updated, causing potential random weird problems with huge pages. This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc/pseries: boot failures on numa if no memory on nodeMike Kravetz2005-12-08
| | | | | | | | | This bug exists in the current code and prevents machines from booting with numa enabled if there is a node that does not contain memory. Workaround is to boot with 'numa=off'. Looks like a simple typo. Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: remove redundant code in stab initOlof Johansson2005-12-04
| | | | | | | | | There's never been a hardware platform that has both pSeries/RPA LPAR hypervisor and stab (pre-POWER4 segment management). This removes the redundant code in stab_initalize(). Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* ppc: Build in all three of powermac, PREP and CHRP supportPaul Mackerras2005-12-04
| | | | | | | | | | | | | | | | | This reverts commit da0825fd201a03294dbf7f8f030676d608da122c, making it so that if you select CONFIG_PPC_MULTIPLATFORM you get support for PMAC, PREP and CHRP built in. The reason for not allowing PMAC, PREP and CHRP to be selected individually for ARCH=ppc is that there is too much interdependency between them in the platform support code. For example, CHRP uses the PMAC nvram code. Configuring with ARCH=powerpc does allow you to select support for PMAC and CHRP separately. Support for PREP is not there yet but should be there soon. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc/pseries: Optimize IOMMU setupPaul Mackerras2005-12-04
| | | | | | | | | | The previous commit will use the page-at-a-time hypervisor call for setting up IOMMU entries when we are using 64k pages and setting up one 64k page, even though that means 16 calls to the hypervisor, since the hypervisor still works on 4k pages. This optimizes this case by using the multi-page IOMMU setup hypervisor call instead. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: correct the NR_CPUS description textOlaf Hering2005-12-01
| | | | | | | Update the help text to match the allowed range. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc/pseries: Fix TCE building with 64k pagesizeMichal Ostrowski2005-12-01
| | | | | | | | | | Must adjust tcenum and npages by TCE_PAGE_FACTOR to convert between 64KB pages and TCE (4K) pages. (This is done in other places, except for this one location.) Signed-off-by: Michal Ostrowski <mostrows at watson ibm com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2005-12-01
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| * [NETLINK]: Fix processing of fib_lookup netlink messagesThomas Graf2005-12-01
| | | | | | | | | | | | | | | | | | The receive path for fib_lookup netlink messages is lacking sanity checks for header and payload and is thus vulnerable to malformed netlink messages causing illegal memory references. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NETFILTER]: Fix recent match jiffies wrap mismatchesPhil Oester2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Around jiffies wrap time (i.e. within first 5 mins after boot), recent match rules which contain both --seconds and --hitcount arguments experience false matches. This is because the last_pkts array is filled with zeros on creation, and when comparing 'now' to 0 (+ --seconds argument), time_before_eq thinks it has found a hit. Below patch adds a break if the packet value is zero. This has the unfortunate side effect of causing mismatches if a packet was received when jiffies really was equal to zero. The odds of that happening are slim compared to the problems caused by not adding the break however. Plus, the author used this same method just below, so it is "good enough". This fixes netfilter bugs #383 and #395. Signed-off-by: Phil Oester <kernel@linuxace.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NETFILTER]: Ignore ACKs ACKs on half open connections in TCP conntrackJozsef Kadlecsik2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mounting NFS file systems after a (warm) reboot could take a long time if firewalling and connection tracking was enabled. The reason is that the NFS clients tends to use the same ports (800 and counting down). Now on reboot, the server would still have a TCB for an existing TCP connection client:800 -> server:2049. The client sends a SYN from port 800 to server:2049, which elicits an ACK from the server. The firewall on the client drops the ACK because (from its point of view) the connection is still in half-open state, and it expects to see a SYNACK. The client will eventually time out after several minutes. The following patch corrects this, by accepting ACKs on half open connections as well. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2005-12-01
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| * | [ARM] sema_count() removalArthur Othieno2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | sema_count() defined only for ARM but not used anywhere. Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3188/1: Add missing i2c dependency for AkitaRichard Purdie2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Richard Purdie Akita requires inbuilt kernel i2c support for its GPIOs. Add this requirement to Kconfig and update the defconfig to match. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Fix IXDP425 setup bugJeff Hansen2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | There is a typo in the ARM IXDP425 setup definition that mistakenly tries to use UART1's IRQ for UART2's traffic. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM SMP] Use event instructions for spinlocksRussell King2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARMv6K CPUs have SEV (send event) and WFE (wait for event) instructions which allow the CPU clock to be suspended until another CPU issues a SEV, rather than spinning on the lock wasting power. Make use of these instructions. Note that WFE does not wait if an event has been sent since the last WFE cleared the event status, so although it may look racy, the instruction implementation ensures that these are dealt with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM SMP] Disable lazy flush_dcache_page for SMPRussell King2005-11-30
| | | | | | | | | | | | | | | | | | | | | Lazy flush_dcache_page() causes userspace instability on SMP platforms, so disable it for now. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2005-12-01
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| * | | [MIPS] Update defconfigs to reflect Kconfig changes.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Avoid duplicate do_syscall_trace calls on return from sigreturn.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Fix register handling in syscalls when debugging.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Alchemy: Set board type on initialization.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | From Sergei Shtylylov <sshtylyov@ru.mvista.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Alchemy: Fix BCSR accesses.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes BCSR accesses in the board setup/reset code. The registers are actually 16-bit, and their addresses are different between DBAu1550 and other DBAu1xx0 boards. From Sergei Shtylylov <sshtylyov@ru.mvista.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Fix return path of sysmips(MIPS_ATOMIC_SET, ...)Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | The way we were doing things does no longer work on 2.6. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Qemu: Accept kernel command line passed by the Emulator.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | From Daniel Jacobowitz <dan@debian.org>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Qemu: Qemu is emulating a 1193.182kHz i8254 PIC.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | From Daniel Jacobowitz <dan@debian.org>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Generate SIGILL againDaniel Jacobowitz2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The rdhwr emulation accidentally swallowed the SIGILL from most other illegal instructions. Make sure to return -EFAULT by default. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Kconfig: Include init/Kconfig after we've set 32BIT / 64BIT.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] Use reset_page_mapcount to initialize empty_zero_page usage counter.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] R10000 and R12000 need to set MIPS_CPU_4K_CACHE ...Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | | | | | | | | | ... because they have R4000-style caches. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] JMR3927: Declare puts function.Ralf Baechle2005-12-01
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | [MIPS] JMR3927 fixes.Sergei Shtylylov2005-12-01
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | o Check if IRQ is disabled or in progress before reenabling interrupts in jmr3927_irq_end.. o s/spinlock_irqsave/spin_lock_irqsave/ o s/spinlock_irqrestore/spin_unlock_irqrestore/ o Flush write buffer after setting IRQ mask o In 2.6 jmr3927_ioc_interrupt interrupt handlers return irqreturn_t Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2005-12-01
|\ \ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
| * | | IB/uverbs: track multicast group membership for userspace QPsJack Morgenstein2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | uverbs needs to track which multicast groups is each qp attached to, in order to properly detach when cleanup is performed on device file close. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IB/mthca: fix posting of send lists of length >= 255 on mem-free HCAsMichael S. Tsirkin2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On mem-free HCAs, when posting a long list of send requests, a doorbell must be rung every 255 requests. Add code to handle this. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IPoIB: fix error handling in ipoib_openRoland Dreier2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | If ipoib_ib_dev_up() fails after ipoib_ib_dev_open() is called, then ipoib_ib_dev_stop() needs to be called to clean up. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IPoIB: protect child list in ipoib_ib_dev_flushMichael S. Tsirkin2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | race condition: ipoib_ib_dev_flush is accessing child list without locks. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IPoIB: don't zero members after we allocate with kzallocRoland Dreier2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ipoib_mcast_alloc() uses kzalloc(), so there's no need to zero out members of the mcast struct after it's allocated. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IPoIB: reinitialize mcast structs' completions for every queryMichael S. Tsirkin2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure mcast->done is initialized to uncompleted value before we submit a new query, so that it's safe to wait on. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IPoIB: always set path->query to NULL when query finishesRoland Dreier2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Always set path->query to NULL when the SA path record query completes, rather than only when we don't have an address handle. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IPoIB: reinitialize path struct's completion for every queryRoland Dreier2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's possible that IPoIB will issue multiple SA queries for the same path struct. Therefore the struct's completion needs to be initialized for each query rather than only once when the struct is allocated, or else we might not wait long enough for later queries to finish and free the path struct too soon. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IB/umad: fix RMPP handlingMichael S. Tsirkin2005-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ib_umad_write in user_mad.c is looking at rmpp_hdr field in MAD before checking that the MAD actually has the RMPP header. So for a MAD without RMPP header it looks like we are actually checking a bit inside M_Key, or something. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | IB/mthca: reset QP's last pointers when transitioning to reset stateMichael S. Tsirkin2005-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | last pointer is not updated when QP is modified to reset state. This causes data corruption if WQEs are already posted on the queue. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | | | Merge branch 'upstream-fixes' of ↵Linus Torvalds2005-12-01
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