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* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2010-02-11
|\ | | | | | | | | | | | | | | | | | | 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, apic: Don't use logical-flat mode when CPU hotplug may exceed 8 CPUs x86-32: Make AT_VECTOR_SIZE_ARCH=2 x86/agp: Fix amd64-agp module initialization regression x86, doc: Fix minor spelling error in arch/x86/mm/gup.c
| * x86, doc: Fix minor spelling error in arch/x86/mm/gup.cAndy Shevchenko2010-02-02
| | | | | | | | | | | | | | | | | | | | Fix minor spelling error in comment. No code change. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> LKML-Reference: <201002022238.o12McDiF018720@imap1.linux-foundation.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | memory hotplug: fix a bug on /dev/mem for 64-bit kernelsShaohui Zheng2010-02-02
|/ | | | | | | | | | | | | | | | | | | | Newly added memory can not be accessed via /dev/mem, because we do not update the variables high_memory, max_pfn and max_low_pfn. Add a function update_end_of_memory_vars() to update these variables for 64-bit kernels. [akpm@linux-foundation.org: simplify comment] Signed-off-by: Shaohui Zheng <shaohui.zheng@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Li Haicheng <haicheng.li@intel.com> Reviewed-by: Wu Fengguang <fengguang.wu@intel.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86: Set hotpluggable nodes in nodes_possible_mapDavid Rientjes2010-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | nodes_possible_map does not currently include nodes that have SRAT entries that are all ACPI_SRAT_MEM_HOT_PLUGGABLE since the bit is cleared in nodes_parsed if it does not have an online address range. Unequivocally setting the bit in nodes_parsed is insufficient since existing code, such as acpi_get_nodes(), assumes all nodes in the map have online address ranges. In fact, all code using nodes_parsed assumes such nodes represent an address range of online memory. nodes_possible_map is created by unioning nodes_parsed and cpu_nodes_parsed; the former represents nodes with online memory and the latter represents memoryless nodes. We now set the bit for hotpluggable nodes in cpu_nodes_parsed so that it also gets set in nodes_possible_map. [ hpa: Haicheng Li points out that this makes the naming of the variable cpu_nodes_parsed somewhat counterintuitive. However, leave it as is in the interest of keeping the pure bug fix patch small. ] Signed-off-by: David Rientjes <rientjes@google.com> Tested-by: Haicheng Li <haicheng.li@linux.intel.com> LKML-Reference: <alpine.DEB.2.00.1001201152040.30528@chino.kir.corp.google.com> Cc: <stable@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* hw-breakpoints, perf: Fix broken mmiotrace due to dr6 by reference changeLuca Barbieri2010-01-17
| | | | | | | | | | | | | | | | | | Commit 62edab9056a6cf0c9207339c8892c923a5217e45 (from June 2009 but merged in 2.6.33) changes notify_die to pass dr6 by reference. However, it forgets to fix the check for DR_STEP in kmmio.c, breaking mmiotrace. It also passes a wrong value to the post handler. This simple fix makes mmiotrace work again. Signed-off-by: Luca Barbieri <luca@luca-barbieri.com> Acked-by: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1263634770-14578-1-git-send-email-luca@luca-barbieri.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* mm: make totalhigh_pages unsigned longAndreas Fenkart2010-01-11
| | | | | | | | | | | | | | | | | Makes it consistent with the extern declaration, used when CONFIG_HIGHMEM is set Removes redundant casts in printout messages Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86, kmemcheck: Use KERN_WARNING for error reportingPekka Enberg2009-12-28
| | | | | | | | | | | As suggested by Vegard Nossum, use KERN_WARNING for error reporting to make sure kmemcheck reports end up in syslog. Suggested-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <1261990935.4641.7.camel@penberg-laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'iommu/fixes' of ↵Ingo Molnar2009-12-28
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
| * Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-12-14
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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, mce: Clean up thermal init by introducing intel_thermal_supported() x86, mce: Thermal monitoring depends on APIC being enabled x86: Gart: fix breakage due to IOMMU initialization cleanup x86: Move swiotlb initialization before dma32_free_bootmem x86: Fix build warning in arch/x86/mm/mmio-mod.c x86: Remove usedac in feature-removal-schedule.txt x86: Fix duplicated UV BAU interrupt vector nvram: Fix write beyond end condition; prove to gcc copy is safe mm: Adjust do_pages_stat() so gcc can see copy_from_user() is safe x86: Limit the number of processor bootup messages x86: Remove enabling x2apic message for every CPU doc: Add documentation for bootloader_{type,version} x86, msr: Add support for non-contiguous cpumasks x86: Use find_e820() instead of hard coded trampoline address x86, AMD: Fix stale cpuid4_info shared_map data in shared_cpu_map cpumasks Trivial percpu-naming-introduced conflicts in arch/x86/kernel/cpu/intel_cacheinfo.c
| * \ Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-12-11
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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/amd-iommu: Fix PCI hotplug with passthrough mode x86/amd-iommu: Fix passthrough mode x86: mmio-mod.c: Use pr_fmt x86: kmmio.c: Add and use pr_fmt(fmt) x86: i8254.c: Add pr_fmt(fmt) x86: setup_percpu.c: Use pr_<level> and add pr_fmt(fmt) x86: es7000_32.c: Use pr_<level> and add pr_fmt(fmt) x86: Print DMI_BOARD_NAME as well as DMI_PRODUCT_NAME from __show_regs() x86: Factor duplicated code out of __show_regs() into show_regs_common() arch/x86/kernel/microcode*: Use pr_fmt() and remove duplicated KERN_ERR prefix x86, mce: fix confusion between bank attributes and mce attributes x86/mce: Set up timer unconditionally x86: Fix bogus warning in apic_noop.apic_write() x86: Fix typo in arch/x86/mm/kmmio.c x86: ASUS P4S800 reboot=bios quirk
| * | | vfs: Implement proper O_SYNC semanticsChristoph Hellwig2009-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While Linux provided an O_SYNC flag basically since day 1, it took until Linux 2.4.0-test12pre2 to actually get it implemented for filesystems, since that day we had generic_osync_around with only minor changes and the great "For now, when the user asks for O_SYNC, we'll actually give O_DSYNC" comment. This patch intends to actually give us real O_SYNC semantics in addition to the O_DSYNC semantics. After Jan's O_SYNC patches which are required before this patch it's actually surprisingly simple, we just need to figure out when to set the datasync flag to vfs_fsync_range and when not. This patch renames the existing O_SYNC flag to O_DSYNC while keeping it's numerical value to keep binary compatibility, and adds a new real O_SYNC flag. To guarantee backwards compatiblity it is defined as expanding to both the O_DSYNC and the new additional binary flag (__O_SYNC) to make sure we are backwards-compatible when compiled against the new headers. This also means that all places that don't care about the differences can just check O_DSYNC and get the right behaviour for O_SYNC, too - only places that actuall care need to check __O_SYNC in addition. Drivers and network filesystems have been updated in a fail safe way to always do the full sync magic if O_DSYNC is set. The few places setting O_SYNC for lower layers are kept that way for now to stay failsafe. We enforce that O_DSYNC is set when __O_SYNC is set early in the open path to make sure we always get these sane options. Note that parisc really screwed up their headers as they already define a O_DSYNC that has always been a no-op. We try to repair it by using it for the new O_DSYNC and redefinining O_SYNC to send both the traditional O_SYNC numerical value _and_ the O_DSYNC one. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jan Kara <jack@suse.cz>
* | | | x86: Fix checking of SRAT when node 0 ram is not from 0Yinghai Lu2009-12-16
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Found one system that boot from socket1 instead of socket0, SRAT get rejected... [ 0.000000] SRAT: Node 1 PXM 0 0-a0000 [ 0.000000] SRAT: Node 1 PXM 0 100000-80000000 [ 0.000000] SRAT: Node 1 PXM 0 100000000-2080000000 [ 0.000000] SRAT: Node 0 PXM 1 2080000000-4080000000 [ 0.000000] SRAT: Node 2 PXM 2 4080000000-6080000000 [ 0.000000] SRAT: Node 3 PXM 3 6080000000-8080000000 [ 0.000000] SRAT: Node 4 PXM 4 8080000000-a080000000 [ 0.000000] SRAT: Node 5 PXM 5 a080000000-c080000000 [ 0.000000] SRAT: Node 6 PXM 6 c080000000-e080000000 [ 0.000000] SRAT: Node 7 PXM 7 e080000000-10080000000 ... [ 0.000000] NUMA: Allocated memnodemap from 500000 - 701040 [ 0.000000] NUMA: Using 20 for the hash shift. [ 0.000000] Adding active range (0, 0x2080000, 0x4080000) 0 entries of 3200 used [ 0.000000] Adding active range (1, 0x0, 0x96) 1 entries of 3200 used [ 0.000000] Adding active range (1, 0x100, 0x7f750) 2 entries of 3200 used [ 0.000000] Adding active range (1, 0x100000, 0x2080000) 3 entries of 3200 used [ 0.000000] Adding active range (2, 0x4080000, 0x6080000) 4 entries of 3200 used [ 0.000000] Adding active range (3, 0x6080000, 0x8080000) 5 entries of 3200 used [ 0.000000] Adding active range (4, 0x8080000, 0xa080000) 6 entries of 3200 used [ 0.000000] Adding active range (5, 0xa080000, 0xc080000) 7 entries of 3200 used [ 0.000000] Adding active range (6, 0xc080000, 0xe080000) 8 entries of 3200 used [ 0.000000] Adding active range (7, 0xe080000, 0x10080000) 9 entries of 3200 used [ 0.000000] SRAT: PXMs only cover 917504MB of your 1048566MB e820 RAM. Not used. [ 0.000000] SRAT: SRAT not used. the early_node_map is not sorted because node0 with non zero start come first. so try to sort it right away after all regions are registered. also fixs refression by 8716273c (x86: Export srat physical topology) -v2: make it more solid to handle cross node case like node0 [0,4g), [8,12g) and node1 [4g, 8g), [12g, 16g) -v3: update comments. Reported-and-tested-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4B2579D2.3010201@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | x86: Fix build warning in arch/x86/mm/mmio-mod.cJoe Perches2009-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stephen Rothwell reported these warnings: arch/x86/mm/mmio-mod.c: In function 'print_pte': arch/x86/mm/mmio-mod.c:100: warning: too many arguments for format arch/x86/mm/mmio-mod.c:106: warning: too many arguments for format The 'fmt' was left out accidentally. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Joe Perches <joe@perches.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Linus <torvalds@linux-foundation.org> LKML-Reference: <1260775443.18538.16.camel@Joe-Laptop.home> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge commit 'linus/master' into x86/urgentH. Peter Anvin2009-12-11
|\| | | |/ |/|
| * Merge branch 'for-linus' of ↵Linus Torvalds2009-12-09
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits) tree-wide: fix misspelling of "definition" in comments reiserfs: fix misspelling of "journaled" doc: Fix a typo in slub.txt. inotify: remove superfluous return code check hdlc: spelling fix in find_pvc() comment doc: fix regulator docs cut-and-pasteism mtd: Fix comment in Kconfig doc: Fix IRQ chip docs tree-wide: fix assorted typos all over the place drivers/ata/libata-sff.c: comment spelling fixes fix typos/grammos in Documentation/edac.txt sysctl: add missing comments fs/debugfs/inode.c: fix comment typos sgivwfb: Make use of ARRAY_SIZE. sky2: fix sky2_link_down copy/paste comment error tree-wide: fix typos "couter" -> "counter" tree-wide: fix typos "offest" -> "offset" fix kerneldoc for set_irq_msi() spidev: fix double "of of" in comment comment typo fix: sybsystem -> subsystem ...
| | * Merge branch 'for-next' into for-linusJiri Kosina2009-12-07
| | |\ | | | | | | | | | | | | | | | | | | | | Conflicts: kernel/irq/chip.c
| | | * tree-wide: fix assorted typos all over the placeAndré Goddard Rosa2009-12-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | x86: mmio-mod.c: Use pr_fmtJoe Perches2009-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - Remove #define NAME - Remove NAME from pr_<level> Signed-off-by: Joe Perches <joe@perches.com> LKML-Reference: <009cb214c45ef932df0242856228f4739cc91408.1260383912.git.joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | x86: kmmio.c: Add and use pr_fmt(fmt)Joe Perches2009-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - Strip "kmmio: " from pr_<level>s Signed-off-by: Joe Perches <joe@perches.com> LKML-Reference: <7aa509f8a23933036d39f54bd51e9acc52068049.1260383912.git.joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | Merge branch 'linus' into x86/urgentIngo Molnar2009-12-09
|\| | | | | | | | | | | | | | | | | | | | | | | Merge reason: We want to queue up a dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Merge branch 'x86-pat-for-linus' of ↵Linus Torvalds2009-12-08
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: pat: Remove ioremap_default() x86: pat: Clean up req_type special case for reserve_memtype() x86: Relegate CONFIG_PAT and CONFIG_MTRR configurability to EMBEDDED
| | * | | x86: pat: Remove ioremap_default()Xiaotian Feng2009-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit: b6ff32d: x86, PAT: Consolidate code in pat_x_mtrr_type() and reserve_memtype() consolidated reserve_memtype() and pat_x_mtrr_type, this made ioremap_default() same as ioremap_cache(). Remove the redundant function and change the only caller to use ioremap_cache. Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> LKML-Reference: <1257845005-7938-1-git-send-email-dfeng@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | | x86: pat: Clean up req_type special case for reserve_memtype()Xiaotian Feng2009-11-10
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit: b6ff32d: x86, PAT: Consolidate code in pat_x_mtrr_type() and reserve_memtype() consolidated code in pat_x_mtrr_type() and reserve_memtype(), which removed the special case (req_type is -1) for the PAT-enabled part. We should also change comments and the PAT-disabled part. Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> LKML-Reference: <1257844987-7906-1-git-send-email-dfeng@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds2009-12-08
| |\ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits) x86, mm: Correct the implementation of is_untracked_pat_range() x86/pat: Trivial: don't create debugfs for memtype if pat is disabled x86, mtrr: Fix sorting of mtrr after subtracting x86: Move find_smp_config() earlier and avoid bootmem usage x86, platform: Change is_untracked_pat_range() to bool; cleanup init x86: Change is_ISA_range() into an inline function x86, mm: is_untracked_pat_range() takes a normal semiclosed range x86, mm: Call is_untracked_pat_range() rather than is_ISA_range() x86: UV SGI: Don't track GRU space in PAT x86: SGI UV: Fix BAU initialization x86, numa: Use near(er) online node instead of roundrobin for NUMA x86, numa, bootmem: Only free bootmem on NUMA failure path x86: Change crash kernel to reserve via reserve_early() x86: Eliminate redundant/contradicting cache line size config options x86: When cleaning MTRRs, do not fold WP into UC x86: remove "extern" from function prototypes in <asm/proto.h> x86, mm: Report state of NX protections during boot x86, mm: Clean up and simplify NX enablement x86, pageattr: Make set_memory_(x|nx) aware of NX support x86, sleep: Always save the value of EFER ... Fix up conflicts (added both iommu_shutdown and is_untracked_pat_range) to 'struct x86_platform_ops') in arch/x86/include/asm/x86_init.h arch/x86/kernel/x86_init.c
| | * | x86/pat: Trivial: don't create debugfs for memtype if pat is disabledXiaotian Feng2009-11-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If pat is disabled (boot with nopat), there's no need to create debugfs for it, it's empty all the time. Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <1259236428-16329-1-git-send-email-dfeng@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: Move find_smp_config() earlier and avoid bootmem usageYinghai Lu2009-11-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the find_smp_config() call to before bootmem is initialized. Use reserve_early() instead of reserve_bootmem() in it. This simplifies the code, we only need to call find_smp_config() once and can remove the now unneeded reserve parameter from x86_init_mpparse::find_smp_config. We thus also reduce x86's dependency on bootmem allocations. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4B0BB9F2.70907@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86, platform: Change is_untracked_pat_range() to bool; cleanup initH. Peter Anvin2009-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Change is_untracked_pat_range() to return bool. - Clean up the initialization of is_untracked_pat_range() -- by default, we simply point it at is_ISA_range() directly. - Move is_untracked_pat_range to the end of struct x86_platform, since it is the newest field. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jack Steiner <steiner@sgi.com> LKML-Reference: <20091119202341.GA4420@sgi.com>
| | * | x86, mm: is_untracked_pat_range() takes a normal semiclosed rangeH. Peter Anvin2009-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | is_untracked_pat_range() -- like its components, is_ISA_range() and is_GRU_range(), takes a normal semiclosed interval (>=, <) whereas the PAT code called it as if it took a closed range (>=, <=). Fix. Although this is a bug, I believe it is non-manifest, simply because none of the callers will call this with non-page-aligned addresses. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <20091119202341.GA4420@sgi.com>
| | * | x86: UV SGI: Don't track GRU space in PATJack Steiner2009-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GRU space is always mapped as WB in the page table. There is no need to track the mappings in the PAT. This also eliminates the "freeing invalid memtype" messages when the GRU space is unmapped. Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20091119202341.GA4420@sgi.com> [ v2: fix build failure ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86, numa: Use near(er) online node instead of roundrobin for NUMAYinghai Lu2009-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CPU to node mapping is set via the following sequence: 1. numa_init_array(): Set up roundrobin from cpu to online node 2. init_cpu_to_node(): Set that according to apicid_to_node[] according to srat only handle the node that is online, and leave other cpu on node without ram (aka not online) to still roundrobin. 3. later call srat_detect_node for Intel/AMD, will use first_online node or nearby node. Problem is that setup_per_cpu_areas() is not called between 2 and 3, the per_cpu for cpu on node with ram is on different node, and could put that on node with two hops away. So try to optimize this and add find_near_online_node() and call init_cpu_to_node(). Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: David Rientjes <rientjes@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <4B07A739.3030104@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86, numa, bootmem: Only free bootmem on NUMA failure pathYinghai Lu2009-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the NUMA bootmem setup failure path we freed nodedata_phys incorrectly. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: David Rientjes <rientjes@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <4B07A739.3030104@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: Eliminate redundant/contradicting cache line size config optionsJan Beulich2009-11-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than having X86_L1_CACHE_BYTES and X86_L1_CACHE_SHIFT (with inconsistent defaults), just having the latter suffices as the former can be easily calculated from it. To be consistent, also change X86_INTERNODE_CACHE_BYTES to X86_INTERNODE_CACHE_SHIFT, and set it to 7 (128 bytes) for NUMA to account for last level cache line size (which here matters more than L1 cache line size). Finally, make sure the default value for X86_L1_CACHE_SHIFT, when X86_GENERIC is selected, is being seen before that for the individual CPU model options (other than on x86-64, where GENERIC_CPU is part of the choice construct, X86_GENERIC is a separate option on ix86). Signed-off-by: Jan Beulich <jbeulich@novell.com> Acked-by: Ravikiran Thirumalai <kiran@scalex86.org> Acked-by: Nick Piggin <npiggin@suse.de> LKML-Reference: <4AFD5710020000780001F8F0@vpn.id2.novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86, mm: Report state of NX protections during bootKees Cook2009-11-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible for x86_64 systems to lack the NX bit either due to the hardware lacking support or the BIOS having turned off the CPU capability, so NX status should be reported. Additionally, anyone booting NX-capable CPUs in 32bit mode without PAE will lack NX functionality, so this change provides feedback for that case as well. Signed-off-by: Kees Cook <kees.cook@canonical.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <1258154897-6770-6-git-send-email-hpa@zytor.com>
| | * | x86, mm: Clean up and simplify NX enablementH. Peter Anvin2009-11-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 32- and 64-bit code used very different mechanisms for enabling NX, but even the 32-bit code was enabling NX in head_32.S if it is available. Furthermore, we had a bewildering collection of tests for the available of NX. This patch: a) merges the 32-bit set_nx() and the 64-bit check_efer() function into a single x86_configure_nx() function. EFER control is left to the head code. b) eliminates the nx_enabled variable entirely. Things that need to test for NX enablement can verify __supported_pte_mask directly, and cpu_has_nx gives the supported status of NX. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Tejun Heo <tj@kernel.org> Cc: Brian Gerst <brgerst@gmail.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Vegard Nossum <vegardno@ifi.uio.no> Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Chris Wright <chrisw@sous-sol.org> LKML-Reference: <1258154897-6770-5-git-send-email-hpa@zytor.com> Acked-by: Kees Cook <kees.cook@canonical.com>
| | * | x86, pageattr: Make set_memory_(x|nx) aware of NX supportH. Peter Anvin2009-11-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make set_memory_x/set_memory_nx directly aware of if NX is supported in the system or not, rather than requiring that every caller assesses that support independently. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Tejun Heo <tj@kernel.org> Cc: Tim Starling <tstarling@wikimedia.org> Cc: Hannes Eder <hannes@hanneseder.net> LKML-Reference: <1258154897-6770-4-git-send-email-hpa@zytor.com> Acked-by: Kees Cook <kees.cook@canonical.com>
| | * | x86_64, cpa: Use only text section in set_kernel_text_rw/roSuresh Siddha2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_kernel_text_rw()/set_kernel_text_ro() are marking pages starting from _text to __start_rodata as RW or RO. With CONFIG_DEBUG_RODATA, there might be free pages (associated with padding the sections to 2MB large page boundary) between text and rodata sections that are given back to page allocator. So we should use only use the start (__text) and end (__stop___ex_table) of the text section in set_kernel_text_rw()/set_kernel_text_ro(). Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20091029024821.164525222@sbs-t61.sc.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86_64, ftrace: Make ftrace use kernel identity mapping to modify codeSuresh Siddha2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On x86_64, kernel text mappings are mapped read-only with CONFIG_DEBUG_RODATA. So use the kernel identity mapping instead of the kernel text mapping to modify the kernel text. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20091029024821.080941108@sbs-t61.sc.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86, cpa: Fix kernel text RO checks in static_protection()Suresh Siddha2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Steven Rostedt reported that we are unconditionally making the kernel text mapping as read-only. i.e., if someone does cpa() to the kernel text area for setting/clearing any page table attribute, we unconditionally clear the read-write attribute for the kernel text mapping that is set at compile time. We should delay (to forbid the write attribute) and enforce only after the kernel has mapped the text as read-only. Reported-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20091029024820.996634347@sbs-t61.sc.intel.com> [ marked kernel_set_to_readonly as __read_mostly ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | tracing: allow to change permissions for text with dynamic ftrace enabledSteven Rostedt2009-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit 74e081797bd9d2a7d8005fe519e719df343a2ba8 x86-64: align RODATA kernel section to 2MB with CONFIG_DEBUG_RODATA prevents text sections from becoming read/write using set_memory_rw. The dynamic ftrace changes all text pages to read/write just before converting the calls to tracing to nops, and vice versa. I orginally just added a flag to allow this transaction when ftrace did the change, but I also found that when the CPA testing was running it would remove the read/write as well, and ftrace does not do the text conversion on boot up, and the CPA changes caused the dynamic tracer to fail on self tests. The current solution I have is to simply not to prevent change_page_attr from setting the RW bit for kernel text pages. Reported-by: Ingo Molnar <mingo@elte.hu> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| | * | x86: Remove pfn in add_one_highpage_init()Minchan Kim2009-10-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit cc9f7a0ccf000d4db5fbdc7b0ae48eefea102f69 changed add_one_highpage_init. We don't use pfn any more. Let's remove unnecessary argument. This patch doesn't chage function behavior. This patch is based on v2.6.32-rc5. Signed-off-by: Minchan Kim <minchan.kim@gmail.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> LKML-Reference: <20091022112722.adc8e55c.minchan.kim@barrios-desktop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86-64: align RODATA kernel section to 2MB with CONFIG_DEBUG_RODATASuresh Siddha2009-10-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_DEBUG_RODATA chops the large pages spanning boundaries of kernel text/rodata/data to small 4KB pages as they are mapped with different attributes (text as RO, RODATA as RO and NX etc). On x86_64, preserve the large page mappings for kernel text/rodata/data boundaries when CONFIG_DEBUG_RODATA is enabled. This is done by allowing the RODATA section to be hugepage aligned and having same RWX attributes for the 2MB page boundaries Extra Memory pages padding the sections will be freed during the end of the boot and the kernel identity mappings will have different RWX permissions compared to the kernel text mappings. Kernel identity mappings to these physical pages will be mapped with smaller pages but large page mappings are still retained for kernel text,rodata,data mappings. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <20091014220254.190119924@sbs-t61.sc.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| | * | x86-64: preserve large page mapping for 1st 2MB kernel txt with ↵Suresh Siddha2009-10-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_DEBUG_RODATA In the first 2MB, kernel text is co-located with kernel static page tables setup by head_64.S. CONFIG_DEBUG_RODATA chops this 2MB large page mapping to small 4KB pages as we mark the kernel text as RO, leaving the static page tables as RW. With CONFIG_DEBUG_RODATA disabled, OLTP run on NHM-EP shows 1% improvement with 2% reduction in system time and 1% improvement in iowait idle time. To recover this, move the kernel static page tables to .data section, so that we don't have to break the first 2MB of kernel text to small pages with CONFIG_DEBUG_RODATA. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <20091014220254.063193621@sbs-t61.sc.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| | * | x86: Interleave emulated nodes over physical nodesDavid Rientjes2009-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add interleaved NUMA emulation support This patch interleaves emulated nodes over the system's physical nodes. This is required for interleave optimizations since mempolicies, for example, operate by iterating over a nodemask and act without knowledge of node distances. It can also be used for testing memory latencies and NUMA bugs in the kernel. There're a couple of ways to do this: - divide the number of emulated nodes by the number of physical nodes and allocate the result on each physical node, or - allocate each successive emulated node on a different physical node until all memory is exhausted. The disadvantage of the first option is, depending on the asymmetry in node capacities of each physical node, emulated nodes may substantially differ in size on a particular physical node compared to another. The disadvantage of the second option is, also depending on the asymmetry in node capacities of each physical node, there may be more emulated nodes allocated on a single physical node as another. This patch implements the second option; we sacrifice the possibility that we may have slightly more emulated nodes on a particular physical node compared to another in lieu of node size asymmetry. [ Note that "node capacity" of a physical node is not only a function of its addressable range, but also is affected by subtracting out the amount of reserved memory over that range. NUMA emulation only deals with available, non-reserved memory quantities. ] We ensure there is at least a minimal amount of available memory allocated to each node. We also make sure that at least this amount of available memory is available in ZONE_DMA32 for any node that includes both ZONE_DMA32 and ZONE_NORMAL. This patch also cleans the emulation code up by no longer passing the statically allocated struct bootnode array among the various functions. This init.data array is not allocated on the stack since it may be very large and thus it may be accessed at file scope. The WARN_ON() for nodes_cover_memory() when faking proximity domains is removed since it relies on successive nodes always having greater start addresses than previous nodes; with interleaving this is no longer always true. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Ankita Garg <ankita@in.ibm.com> Cc: Len Brown <len.brown@intel.com> LKML-Reference: <alpine.DEB.1.00.0909251519150.14754@chino.kir.corp.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: Export srat physical topologyDavid Rientjes2009-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the counterpart to "x86: export k8 physical topology" for SRAT. It is not as invasive because the acpi code already seperates node setup into detection and registration steps, with the exception of registering e820 active regions in acpi_numa_memory_affinity_init(). This is now moved to acpi_scan_nodes() if NUMA emulation is disabled or deferred. acpi_numa_init() now returns a value which specifies whether an underlying SRAT was located. If so, that topology can be used by the emulation code to interleave emulated nodes over physical nodes or to register the nodes for ACPI. acpi_get_nodes() may now be used to export the srat physical topology of the machine for NUMA emulation. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Ankita Garg <ankita@in.ibm.com> Cc: Len Brown <len.brown@intel.com> LKML-Reference: <alpine.DEB.1.00.0909251518580.14754@chino.kir.corp.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: Export k8 physical topologyDavid Rientjes2009-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To eventually interleave emulated nodes over physical nodes, we need to know the physical topology of the machine without actually registering it. This does the k8 node setup in two parts: detection and registration. NUMA emulation can then used the physical topology detected to setup the address ranges of emulated nodes accordingly. If emulation isn't used, the k8 nodes are registered as normal. Two formals are added to the x86 NUMA setup functions: `acpi' and `k8'. These represent whether ACPI or K8 NUMA has been detected; both cannot be true at the same time. This specifies to the NUMA emulation code whether an underlying physical NUMA topology exists and which interface to use. This patch deals solely with separating the k8 setup path into Northbridge detection and registration steps and leaves the ACPI changes for a subsequent patch. The `acpi' formal is added here, however, to avoid touching all the header files again in the next patch. This approach also ensures emulated nodes will not span physical nodes so the true memory latency is not misrepresented. k8_get_nodes() may now be used to export the k8 physical topology of the machine for NUMA emulation. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Ankita Garg <ankita@in.ibm.com> Cc: Len Brown <len.brown@intel.com> LKML-Reference: <alpine.DEB.1.00.0909251518400.14754@chino.kir.corp.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: Clean up and add missing log levels for k8David Rientjes2009-10-12
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert all printk's in arch/x86/mm/k8topology_64.c to use pr_info() or pr_err() appropriately. Adds log levels for messages currently lacking them. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Ankita Garg <ankita@in.ibm.com> Cc: Len Brown <len.brown@intel.com> LKML-Reference: <alpine.DEB.1.00.0909251517440.14754@chino.kir.corp.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'linus' into x86/urgentIngo Molnar2009-12-07
|\| | | | | | | | | | | | | | | | | Merge reason: we want to queue up a dependent fix. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | Merge branch 'x86-debug-for-linus' of ↵Linus Torvalds2009-12-05
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Limit number of per cpu TSC sync messages x86: dumpstack, 64-bit: Disable preemption when walking the IRQ/exception stacks x86: dumpstack: Clean up the x86_stack_ids[][] initalization and other details x86, cpu: mv display_cacheinfo -> cpu_detect_cache_sizes x86: Suppress stack overrun message for init_task x86: Fix cpu_devs[] initialization in early_cpu_init() x86: Remove CPU cache size output for non-Intel too x86: Minimise printk spew from per-vendor init code x86: Remove the CPU cache size printk's cpumask: Avoid cpumask_t in arch/x86/kernel/apic/nmi.c x86: Make sure we also print a Code: line for show_regs()
| | * | x86: Suppress stack overrun message for init_taskJan Beulich2009-11-23
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | init_task doesn't get its stack end location set to STACK_END_MAGIC, and hence the message is confusing rather than helpful in this case. Signed-off-by: Jan Beulich <jbeulich@novell.com> LKML-Reference: <4B06AEFE02000078000211F4@vpn.id2.novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | Merge branch 'x86-asm-for-linus' of ↵Linus Torvalds2009-12-05
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: include/linux/compiler-gcc4.h: Fix build bug - gcc-4.0.2 doesn't understand __builtin_object_size x86/alternatives: No need for alternatives-asm.h to re-invent stuff already in asm.h x86/alternatives: Check replacementlen <= instrlen at build time x86, 64-bit: Set data segments to null after switching to 64-bit mode x86: Clean up the loadsegment() macro x86: Optimize loadsegment() x86: Add missing might_fault() checks to copy_{to,from}_user() x86-64: __copy_from_user_inatomic() adjustments x86: Remove unused thread_return label from switch_to() x86, 64-bit: Fix bstep_iret jump x86: Don't use the strict copy checks when branch profiling is in use x86, 64-bit: Move K8 B step iret fixup to fault entry asm x86: Generate cmpxchg build failures x86: Add a Kconfig option to turn the copy_from_user warnings into errors x86: Turn the copy_from_user check into an (optional) compile time warning x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy x86: Use __builtin_object_size() to validate the buffer size for copy_from_user()
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