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* ARM: make_coherent(): fix problems with highpte, part 2Russell King2010-02-201-3/+4
| | | | | | | | | update_mmu_cache() is called with the page table for the faulted-in page still mapped. We need to modify the PTE for this page to ensure coherency with other shared mappings when multiple shared mappings exist within a MM. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itselfRussell King2010-02-2036-49/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On VIVT ARM, when we have multiple shared mappings of the same file in the same MM, we need to ensure that we have coherency across all copies. We do this via make_coherent() by making the pages uncacheable. This used to work fine, until we allowed highmem with highpte - we now have a page table which is mapped as required, and is not available for modification via update_mmu_cache(). Ralf Beache suggested getting rid of the PTE value passed to update_mmu_cache(): On MIPS update_mmu_cache() calls __update_tlb() which walks pagetables to construct a pointer to the pte again. Passing a pte_t * is much more elegant. Maybe we might even replace the pte argument with the pte_t? Ben Herrenschmidt would also like the pte pointer for PowerPC: Passing the ptep in there is exactly what I want. I want that -instead- of the PTE value, because I have issue on some ppc cases, for I$/D$ coherency, where set_pte_at() may decide to mask out the _PAGE_EXEC. So, pass in the mapped page table pointer into update_mmu_cache(), and remove the PTE value, updating all implementations and call sites to suit. Includes a fix from Stephen Rothwell: sparc: fix fallout from update_mmu_cache API change Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: make_coherent: avoid recalculating the pfn for the modified pageRussell King2010-01-201-6/+6
| | | | | | | We already know the pfn for the page to be modified in make_coherent, so let's stop recalculating it unnecessarily. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: make_coherent: fix problems with highpte, part 1Russell King2010-01-201-2/+11
| | | | | | | | | | | | | | | update_mmu_cache() is called with a page table already mapped. We call make_coherent(), which then calls adjust_pte() which wants to map other page tables. This causes kmap_atomic() to BUG() because the slot its trying to use is already taken. Since do_adjust_pte() modifies the page tables, we are also missing any form of locking, so we're risking corrupting the page tables. Fix this by using pte_offset_map_nested(), and taking the pte page table lock around do_adjust_pte(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: make_coherent: convert adjust_pte() to use p*d_none_or_clear_bad()Russell King2010-01-201-20/+4
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: make_coherent: split adjust_pte() in twoRussell King2010-01-201-20/+32
| | | | | | | adjust_pte() walks the page tables, and do_adjust_pte() does the page table manipulation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* x86, apic: use logical flat for systems with <= 8 logical cpusSuresh Siddha2010-01-182-19/+4
| | | | | | | | | | | | | | | | We can use logical flat mode if there are <= 8 logical cpu's (irrespective of physical apic id values). This will enable simplified and efficient IPI and device interrupt routing on such platforms. This has been tested to work on both Intel and AMD platforms. Exceptions like IBM summit platform which can't use logical flat mode are addressed by using OEM platform checks. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Chris McDermott <lcm@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86, apic: use physical mode for IBM summit platformsSuresh Siddha2010-01-181-0/+5
| | | | | | | | | | | | | | | | | | | | Chris McDermott from IBM confirmed that hurricane chipset in IBM summit platforms doesn't support logical flat mode. Irrespective of the other things like apic_id's, total number of logical cpu's, Linux kernel should default to physical mode for this system. The 32-bit kernel does so using the OEM checks for the IBM summit platform. Add a similar OEM platform check for the 64bit kernel too. Otherwise the linux kernel boot can hang on this platform under certain bios/platform settings. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Tested-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Chris McDermott <lcm@linux.vnet.ibm.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds2010-01-185-5/+20
|\ | | | | | | | | | | | | | | | | * 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: pci_controller->arch_data really is a struct device_node * microblaze: Add missing double apostrophe in Kconfig microblaze: Add PT_ macros for special purpose regs microblaze: Enable accept4 syscall microblaze: Wire up recvmmsg syscall
| * microblaze: pci_controller->arch_data really is a struct device_node *Michal Simek2010-01-181-1/+1
| | | | | | | | | | | | | | we are follow powerpc change: 44ef339073f67d4abcc62ae52a5fbc069d7a4d29 Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add missing double apostrophe in KconfigMichal Simek2010-01-181-1/+1
| | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add PT_ macros for special purpose regsMichal Simek2010-01-181-0/+14
| | | | | | | | | | | | PT_ macros are used by gdb and strace uses them too. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Enable accept4 syscallMichal Simek2010-01-182-2/+2
| | | | | | | | | | | | | | We had wrong name in unistd.h + I wire up this syscall in syscall table. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Wire up recvmmsg syscallMichal Simek2010-01-181-1/+2
| | | | | | | | | | | | | | | | Patch a2e2725541fad72416326798c2d7fa4dafb7d337 should contain change in unistd.h too. The same problem had MIPS. Signed-off-by: Michal Simek <monstr@monstr.eu>
* | Merge branch 'merge' of ↵Linus Torvalds2010-01-1870-1171/+3822
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Move cpu hotplug driver lock from pseries to powerpc powerpc: Move /proc/ppc64 to /proc/powerpc update powerpc/8xx: Fix user space TLB walk in dcbX fixup powerpc: Fix decrementer setup on 1GHz boards powerpc/iseries: Initialise on-stack completion powerpc/hvc: Driver build breaks with !HVC_CONSOLE serial/pmac_zilog: Workaround problem due to interrupt on closed port powerpc/macintosh: Make Open Firmware device id constant powerpc: Use helpers for rlimits powerpc: cpumask_of_node() should handle -1 as a node powerpc/pseries: Fix dlpar compile warning without CONFIG_PROC_DEVICETREE powerpc/pseries: Fix xics interrupt affinity powerpc/swsusp_32: Fix TLB invalidation powerpc/8xx: Always pin kernel instruction TLB powerpc: 2.6.33 update of defconfigs for embedded 6xx/7xxx, 8xx, 8xxx powerpc: Use scripts/mkuboot.sh instead of 'mkimage' powerpc/5200: update defconfigs
| * Merge commit 'gcl/merge' into mergeBenjamin Herrenschmidt2010-01-157-101/+418
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| | * powerpc: Use scripts/mkuboot.sh instead of 'mkimage'Peter Tyser2009-12-301-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mkuboot.sh provides a basic wrapper for the 'mkimage' utility. Using mkuboot.sh provides clearer error reporting and allows a toolchain to use its own 'mkimage' executable specified by ${CROSS_COMPILE}mkimage. Additionally, this brings PowerPC in line with other architectures which already call mkimage via mkuboot.sh. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| | * powerpc/5200: update defconfigsGrant Likely2009-12-306-99/+413
| | | | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | Merge commit 'kumar/merge' into mergeBenjamin Herrenschmidt2010-01-1552-1030/+3351
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| | * | powerpc: 2.6.33 update of defconfigs for embedded 6xx/7xxx, 8xx, 8xxxKumar Gala2010-01-0652-1030/+3351
| | | | | | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | powerpc: Move cpu hotplug driver lock from pseries to powerpcNathan Fontenot2010-01-152-14/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the defintion and lock helper routines for the cpu hotplug driver lock from pseries to powerpc code to avoid build breaks for platforms other than pseries that use cpu hotplug. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Acked-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Move /proc/ppc64 to /proc/powerpc updateNathan Fontenot2010-01-151-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It looks like the previous patch sent out to move RTAS and other items from /proc/ppc64 to /proc/powerpc missed a few files needed for RAS and DLPAR functionality. Original Patch here: http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-September/076096.html This patch updates the remaining files to be created under /proc/powerpc. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/8xx: Fix user space TLB walk in dcbX fixupJoakim Tjernlund2010-01-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The newly added fixup for buggy dcbX insn's has a bug that always trigger a kernel TLB walk so a user space dcbX insn will cause a Kernel Machine Check if it hits DTLB error. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Fix decrementer setup on 1GHz boardsStefan Roese2010-01-151-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We noticed that recent kernels didn't boot on our 1GHz Canyonlands 460EX boards anymore. As it seems, patch 8d165db1 [powerpc: Improve decrementer accuracy] introduced this problem. The routine div_sc() overflows with shift = 32 resulting in this incorrect setup: time_init: decrementer frequency = 1000.000012 MHz time_init: processor frequency = 1000.000012 MHz clocksource: timebase mult[400000] shift[22] registered clockevent: decrementer mult[33] shift[32] cpu[0] This patch now introduces a local div_dc64() version of this function so that this overflow doesn't happen anymore. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Detlev Zundel <dzu@denx.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/iseries: Initialise on-stack completionMichael Ellerman2010-01-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | get_viotape_info() declares a vio_waitevent on the stack, which contains a completion, but never initialises the completion. I have no idea how this ever worked, and on recent kernels it causes an oops in handle_tape_event() when we access the non-initialised completion. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: Use helpers for rlimitsJiri Slaby2010-01-152-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure compiler won't do weird things with limits. E.g. fetching them twice may return 2 different values after writable limits are implemented. I.e. either use rlimit helpers added in 3e10e716abf3c71bdb5d86b8f507f9e72236c9cd or ACCESS_ONCE if not applicable. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: linuxppc-dev@ozlabs.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc: cpumask_of_node() should handle -1 as a nodeAnton Blanchard2010-01-151-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pcibus_to_node can return -1 if we cannot determine which node a pci bus is on. If passed -1, cpumask_of_node will negatively index the lookup array and pull in random data: # cat /sys/devices/pci0000:00/0000:00:01.0/local_cpus 00000000,00000003,00000000,00000000 # cat /sys/devices/pci0000:00/0000:00:01.0/local_cpulist 64-65 Change cpumask_of_node to check for -1 and return cpu_all_mask in this case: # cat /sys/devices/pci0000:00/0000:00:01.0/local_cpus ffffffff,ffffffff,ffffffff,ffffffff # cat /sys/devices/pci0000:00/0000:00:01.0/local_cpulist 0-127 Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/pseries: Fix dlpar compile warning without CONFIG_PROC_DEVICETREEFUJITA Tomonori2010-01-151-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cc1: warnings being treated as errors arch/powerpc/platforms/pseries/dlpar.c: In function 'dlpar_attach_node': arch/powerpc/platforms/pseries/dlpar.c:239: error: unused variable 'ent' arch/powerpc/platforms/pseries/dlpar.c: In function 'dlpar_detach_node': arch/powerpc/platforms/pseries/dlpar.c:271: error: unused variable 'prop' arch/powerpc/platforms/pseries/dlpar.c:270: error: unused variable 'parent' make[3]: *** [arch/powerpc/platforms/pseries/dlpar.o] Error 1 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/pseries: Fix xics interrupt affinityAnton Blanchard2010-01-151-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 57b150cce8e004ddd36330490a68bfb59b7271e9 (irq: only update affinity if ->set_affinity() is sucessfull) broke xics irq affinity. We need to use the cpumask passed in, instead of accessing ->affinity directly. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/swsusp_32: Fix TLB invalidationAnton Vorontsov2010-01-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems there is a thinko in the TLB invalidation code that makes the tlbie in the loop executed just once. The intended check was probably 'gt', not 'lt'. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | powerpc/8xx: Always pin kernel instruction TLBJoakim Tjernlund2010-01-151-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various kernel asm modifies SRR0/SRR1 just before executing a rfi. If such code crosses a page boundary you risk a TLB miss which will clobber SRR0/SRR1. Avoid this by always pinning kernel instruction TLB space. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2010-01-171-31/+18
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: do_add_mount() should sanitize mnt_flags CIFS shouldn't make mountpoints shrinkable mnt_flags fixes in do_remount() attach_recursive_mnt() needs to hold vfsmount_lock over set_mnt_shared() may_umount() needs namespace_sem Fix configfs leak Fix the -ESTALE handling in do_filp_open() ecryptfs: Fix refcnt leak on ecryptfs_follow_link() error path Fix ACC_MODE() for real Unrot uml mconsole a bit hppfs: handle ->put_link() Kill 9p readlink() fix autofs/afs/etc. magic mountpoint breakage
| * | | | Unrot uml mconsole a bitAl Viro2010-01-141-31/+18
| |/ / / | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2010-01-166-9/+39
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, uv: Ensure hub revision set for all ACPI modes. x86, uv: Add function retrieving node controller revision number x86: xen: 64-bit kernel RPL should be 0 x86: kernel_thread() -- initialize SS to a known state x86/agp: Fix agp_amd64_init and agp_amd64_cleanup x86: SGI UV: Fix mapping of MMIO registers x86: mce.h: Fix warning in header checks
| * | | | x86, uv: Ensure hub revision set for all ACPI modes.Russ Anderson2010-01-151-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure that UV hub revision is set for all ACPI modes. Signed-off-by: Russ Anderson <rja@sgi.com> LKML-Reference: <20100115180908.GB7757@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | x86, uv: Add function retrieving node controller revision numberJack Steiner2010-01-152-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add function for determining the revision id of the SGI UV node controller chip (HUB). This function is needed in a subsequent patch. Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20100112210904.GA24546@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | x86: xen: 64-bit kernel RPL should be 0Ian Campbell2010-01-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Under Xen 64 bit guests actually run their kernel in ring 3, however the hypervisor takes care of squashing descriptor the RPLs transparently (in order to allow them to continue to differentiate between user and kernel space CS using the RPL). Therefore the Xen paravirt backend should use RPL==0 instead of 1 (or 3). Using RPL==1 causes generic arch code to take incorrect code paths because it uses "testl $3, <CS>, je foo" type tests for a userspace CS and this considers 1==userspace. This issue was previously masked because get_kernel_rpl() was omitted when setting CS in kernel_thread(). This was fixed when kernel_thread() was unified with 32 bit in f443ff4201dd25cd4dec183f9919ecba90c8edc2. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Christian Kujau <lists@nerdbynature.de> Cc: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Brian Gerst <brgerst@gmail.com> LKML-Reference: <1263377768-19600-2-git-send-email-ian.campbell@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86: kernel_thread() -- initialize SS to a known stateCyrill Gorcunov2010-01-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before the kernel_thread was converted into "C" we had pt_regs::ss set to __KERNEL_DS (by SAVE_ALL asm macro). Though I must admit I didn't find any *explicit* load of %ss from this structure the better to be on a safe side and set it to a known value. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Christian Kujau <lists@nerdbynature.de> Cc: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com> Cc: Brian Gerst <brgerst@gmail.com> LKML-Reference: <1263377768-19600-1-git-send-email-ian.campbell@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86/agp: Fix agp_amd64_init and agp_amd64_cleanupFUJITA Tomonori2010-01-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the regression introduced by the commit f405d2c02395a74d3883bd03ded36457aa3697ad. The above commit fixes the following issue: http://marc.info/?l=linux-kernel&m=126192729110083&w=2 However, it doesn't work properly when you remove and insert the agp_amd64 module again. agp_amd64_init() and agp_amd64_cleanup should be called only when gart_iommu is not called earlier (that is, the GART IOMMU is not enabled). We need to use 'gart_iommu_aperture' to see if GART IOMMU is enabled or not. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: mitov@issp.bas.bg Cc: davej@redhat.com LKML-Reference: <20100104161603L.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86: SGI UV: Fix mapping of MMIO registersMike Travis2010-01-131-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the problem of the initialization code not correctly mapping the entire MMIO space on a UV system. A side effect is the map_high() interface needed to be changed to accommodate different address and size shifts. Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Mike Habeck <habeck@sgi.com> Cc: <stable@kernel.org> Cc: Jack Steiner <steiner@sgi.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <4B479202.7080705@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86: mce.h: Fix warning in header checksAlan Cox2010-01-131-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Someone isn't reading their build output: Move the definition out of the exported header. Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: linux-kernel@vger.kernelorg Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2010-01-161-6/+8
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf tools: Check if /dev/null can be used as the -o gcc argument perf tools: Move QUIET_STDERR def to before first use perf: Stop stack frame walking off kernel addresses boundaries
| * | | | | perf: Stop stack frame walking off kernel addresses boundariesFrederic Weisbecker2010-01-131-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While processing kernel perf callchains, an bad entry can be considered as a valid stack pointer but not as a kernel address. In this case, we hang in an endless loop. This can happen in an x86-32 kernel after processing the last entry in a kernel stacktrace. Just stop the stack frame walking after we encounter an invalid kernel address. This fixes a hard lockup in x86-32. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1262227945-27014-1-git-send-regression-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | m68knommu: fix invalid flags on coldfire pit clocksourcejohn stultz2010-01-161-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The m68knommu coldfire pit clocksource looks like it was incorrectly marked as a continuous clocksource. Running with it marked as a continuous clocksource could cause hangs when the system switches to highres mode or enables nohz. This patch removes the CLOCK_SOURCE_IS_CONTINUOUS flag on the coldfire pit clocksource. This will disallow systems using this clocksource from entering oneshot mode (disabling highres timers and nohz). Signed-off-by: John Stultz <johnstul@us.ibm.com> Acked-by: Greg Ungerer <gerg@snapgear.com> Cc: Steven King <sfking@fdwdc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | Merge branch 'for-linus/samsung' of git://git.fluff.org/bjdooks/linuxLinus Torvalds2010-01-153-20/+21
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus/samsung' of git://git.fluff.org/bjdooks/linux: ARM: MINI2440: Fixup __initdata usage ARM: MINI2440: Fix crash on boot due to improper __initdata qualifier ARM: SMDK6410: Specify no GPIO for B_PWR_5V regulator ARM: S3C: NAND: Check the existence of nr_map before copying
| * | | | | | ARM: MINI2440: Fixup __initdata usageBen Dooks2010-01-151-13/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove some of the __initdata tags which are currently inappropriate for platform_device and some of the platform data. These can be returned once support for copying platform devices and data is added. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | | | | | ARM: MINI2440: Fix crash on boot due to improper __initdata qualifierUri Yosef2010-01-151-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fix mini2440 crash on boot due to improper __initdata qualifier on mini2440_led1_pdata. Signed-off-by: Uri Yosef <uri.yosef@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | | | | | ARM: SMDK6410: Specify no GPIO for B_PWR_5V regulatorMark Brown2010-01-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the fixed voltage regulator grew support for GPIO based enables and GPIO 0 is valid on some systems we need to specify that there is no valid GPIO enable control. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | | | | | ARM: S3C: NAND: Check the existence of nr_map before copyingRamax Lo2010-01-141-2/+2
| | |_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the structure field nr_map is optional, we need to check whether the chip number map is provided to avoid unexpected NULL pointer exception. Signed-off-by: Ramax Lo <ramaxlo@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2010-01-151-0/+1
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: sentelic - fix left/right horizontal scroll mapping Input: pmouse - move Sentelic probe down the list Input: add compat support for sysfs and /proc capabilities output Input: i8042 - add Dritek quirk for Acer Aspire 5610. Input: xbox - do not use GFP_KERNEL under spinlock Input: psmouse - fix Synaptics detection when protocol is disabled Input: bcm5974 - report ABS_MT events Input: davinci_keyscan - add device_enable method to platform data Input: evdev - be less aggressive about sending SIGIO notifies Input: atkbd - fix canceling event_work in disconnect Input: serio - fix potential deadlock when unbinding drivers Input: gf2k - fix &&/|| confusion in gf2k_connect()
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