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2008-04-29Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes: x86: fix PCI MSI breaks when booting with nosmp x86: vget_cycles() __always_inline x86: add more boot protocol documentation bootprotocol: cleanup x86: fix warning in "x86: clean up vSMP detection" x86: !x & y typo in mtrr code
2008-04-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] state info wrong after resume [CPUFREQ] allow use of the powersave governor as the default one [CPUFREQ] document the currently undocumented parts of the sysfs interface [CPUFREQ] expose cpufreq coordination requirements regardless of coordination mechanism
2008-04-29proc: remove proc_root from driversAlexey Dobriyan
Remove proc_root export. Creation and removal works well if parent PDE is supplied as NULL -- it worked always that way. So, one useless export removed and consistency added, some drivers created PDEs with &proc_root as parent but removed them as NULL and so on. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29x86: !x & y typo in mtrr codeHarvey Harrison
As written, this can never be true. Spotted by the Sparse checker. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-28[CPUFREQ] expose cpufreq coordination requirements regardless of ↵Darrick J. Wong
coordination mechanism Currently, affected_cpus shows which CPUs need to have their frequency coordinated in software. When hardware coordination is in use, the contents of this file appear the same as when no coordination is required. This can lead to some confusion among user-space programs, for example, that do not know that extra coordination is required to force a CPU core to a particular speed to control power consumption. To fix this, create a "related_cpus" attribute that always displays the coordination map regardless of whatever coordination strategy the cpufreq driver uses (sw or hw). If the cpufreq driver does not provide a value, fall back to policy->cpus. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Jones <davej@redhat.com>
2008-04-28[CPUFREQ] Make acpi-cpufreq more robust against BIOS freq changes behind our ↵Venkatesh Pallipadi
back. We checked the hardware freq with OS cached freq value in get_cur_freqon_cpu(). Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
2008-04-26x86: remove NexGen supportDmitri Vorobiev
It is claimed that NexGen CPUs were never shipped: http://lkml.org/lkml/2008/4/20/179 Also, the kernel support for these chips has been broken for a long time, the code intended to support NexGen thereby being essentially dead. As an outcome of the discussion that can be found using the URL above, this patch removes the NexGen support altogether. The changes in this patch survived a defconfig build for i386, a couple of successful randconfig builds, as well as a runtime test, which consisted in booting a 32-bit x86 box up to the shell prompt. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: remove unused function amd_init_cpu()Dmitri Vorobiev
There are no users for the function amd_init_cpu() defined in arch/x86/kernel/cpu/amd.c. This patch removes this routine. This patch was build-tested using defconfigs for i386 and x86_64, and a few randconfig instances. Runtime tests were performed by booting 32- and 64-bit x86 boxen up to the shell prompt. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86-64: extend MCE CPU quirk handlingJan Beulich
At least on my Barcelona, I see MCE log entries after cold boot caused by BIOS not properly clearing the respective registers. Therefore, this patch extends the workaround to families 0x10 and 0x11 (the latter just for completeness, I have nothing to verify this against). At the same time, provide a way to make these entries visible via the 'mce=bootlog' command line option even on these machines. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26x86: fix watchdog ops for CoreDuoJan Beulich
There apparently was an unnoticed conflict between an earlier patch to this file and mine (d1e084746b0e5806e6345ab31c5b370f8dee2b23), which I noticed only now. I suppose a change like the one below (untested) is needed; I didn't get any response on a confirmation request for this from the submitter of the first patch. The issue is the writing of the 'checkbit' member at the end of setup_intel_arch_watchdog(), which my patch made go to intel_arch_wd_ops rather than wd_ops. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-21Merge branch 'semaphore' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc * 'semaphore' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc: Deprecate the asm/semaphore.h files in feature-removal-schedule. Convert asm/semaphore.h users to linux/semaphore.h security: Remove unnecessary inclusions of asm/semaphore.h lib: Remove unnecessary inclusions of asm/semaphore.h kernel: Remove unnecessary inclusions of asm/semaphore.h include: Remove unnecessary inclusions of asm/semaphore.h fs: Remove unnecessary inclusions of asm/semaphore.h drivers: Remove unnecessary inclusions of asm/semaphore.h net: Remove unnecessary inclusions of asm/semaphore.h arch: Remove unnecessary inclusions of asm/semaphore.h
2008-04-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel: (62 commits) sched: build fix sched: better rt-group documentation sched: features fix sched: /debug/sched_features sched: add SCHED_FEAT_DEADLINE sched: debug: show a weight tree sched: fair: weight calculations sched: fair-group: de-couple load-balancing from the rb-trees sched: fair-group scheduling vs latency sched: rt-group: optimize dequeue_rt_stack sched: debug: add some debug code to handle the full hierarchy sched: fair-group: SMP-nice for group scheduling sched, cpuset: customize sched domains, core sched, cpuset: customize sched domains, docs sched: prepatory code movement sched: rt: multi level group constraints sched: task_group hierarchy sched: fix the task_group hierarchy for UID grouping sched: allow the group scheduler to have multiple levels sched: mix tasks and groups ...
2008-04-19x86: modify show_shared_cpu_map in intel_cacheinfoMike Travis
* Removed kmalloc (or local array) in show_shared_cpu_map(). * Added show_shared_cpu_list() function. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-19generic: reduce stack pressure in sched_affinityMike Travis
* Modify sched_affinity functions to pass cpumask_t variables by reference instead of by value. * Use new set_cpus_allowed_ptr function. Depends on: [sched-devel]: sched: add new set_cpus_allowed_ptr function Cc: Paul Jackson <pj@sgi.com> Cc: Cliff Wickman <cpw@sgi.com> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-19x86: use new set_cpus_allowed_ptr functionMike Travis
* Use new set_cpus_allowed_ptr() function added by previous patch, which instead of passing the "newly allowed cpus" cpumask_t arg by value, pass it by pointer: -int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask) +int set_cpus_allowed_ptr(struct task_struct *p, const cpumask_t *new_mask) * Cleanup uses of CPU_MASK_ALL. * Collapse other NR_CPUS changes to arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c Use pointers to cpumask_t arguments whenever possible. Depends on: [sched-devel]: sched: add new set_cpus_allowed_ptr function Cc: Len Brown <len.brown@intel.com> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-19x86: reduce memory and stack usage in intel_cacheinfoMike Travis
* Change the following static arrays sized by NR_CPUS to per_cpu data variables: _cpuid4_info *cpuid4_info[NR_CPUS]; _index_kobject *index_kobject[NR_CPUS]; kobject * cache_kobject[NR_CPUS]; * Remove the local NR_CPUS array with a kmalloc'd region in show_shared_cpu_map(). Also some minor complaints from checkpatch.pl fixed. Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-19x86: remove pointless commentsWANG Cong
Remove old comments that include the old arch/i386 directory. Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-19x86: clean up cpu capabilities accesses, p4-clockmod.cIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-18arch: Remove unnecessary inclusions of asm/semaphore.hMatthew Wilcox
None of these files use any of the functionality promised by asm/semaphore.h. It's possible that they rely on it dragging in some unrelated header file, but I can't build all these files, so we'll have fix any build failures as they come up. Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2008-04-17x86: move apic declarations to mach_apic.hGlauber Costa
take them out of the x86_64-specific asm/mach_apic.h Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: pat cpu feature bit setting for known cpusYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: tom2 warning fixIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: enable PAT for amd k8 and fam10hYinghai Lu
make known_pat_cpu to think amd k8 and fam10h is ok too. also make tom2 below to be WRBACK Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: PAT infrastructure patchvenkatesh.pallipadi@intel.com
Sets up pat_init() infrastructure. PAT MSR has following setting. PAT |PCD ||PWT ||| 000 WB _PAGE_CACHE_WB 001 WC _PAGE_CACHE_WC 010 UC- _PAGE_CACHE_UC_MINUS 011 UC _PAGE_CACHE_UC We are effectively changing WT from boot time setting to WC. UC_MINUS is used to provide backward compatibility to existing /dev/mem users(X). reserve_memtype and free_memtype are new interfaces for maintaining alias-free mapping. It is currently implemented in a simple way with a linked list and not optimized. reserve and free tracks the effective memory type, as a result of PAT and MTRR setting rather than what is actually requested in PAT. pat_init piggy backs on mtrr_init as the rules for setting both pat and mtrr are same. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: introduce initial apicidYinghai Lu
store initial_apicid from early identify. it is could be different from phys_proc_id later. also print it out in /proc/cpuinfo. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: show apicid for cpu in procYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: arch/x86/kernel/cpu/feature_names.c - use angle brackets for includeJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: switch to proc_create()Alexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up cpu capabilities accesses, transmeta.cIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up cpu capabilities in arch/x86/kernel/cpu/intel.cIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up cpu capabilities accesses, cyrix.cIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up cpu capabilities accesses, common.cIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up cpu capabilities accesses, centaur.cIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up cpu capabilities accesses, amd.cIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up cpu capabilities accesses, genericIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/common.cPaolo Ciarrocchi
Before: total: 55 errors, 6 warnings, 727 lines checked After: total: 0 errors, 3 warnings, 734 lines checked No code changed: arch/x86/kernel/cpu/common.o: text data bss dec hex filename 3500 4611 44 8155 1fdb common.o.before 3500 4611 44 8155 1fdb common.o.after md5: e37091f11fbeb682c0db152ac3022a38 common.o.before.asm e37091f11fbeb682c0db152ac3022a38 common.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/cyrix.cPaolo Ciarrocchi
Before: total: 46 errors, 10 warnings, 450 lines checked After: total: 1 errors, 10 warnings, 449 lines checked No code changed: arch/x86/kernel/cpu/cyrix.o: text data bss dec hex filename 2048 908 4 2960 b90 cyrix.o.before 2048 908 4 2960 b90 cyrix.o.after md5: 9add5e69dbd788f91ff24eea8462dad7 cyrix.o.before.asm 9add5e69dbd788f91ff24eea8462dad7 cyrix.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/mcheck/mce_32.cPaolo Ciarrocchi
Before: total: 10 errors, 3 warnings, 90 lines checked After: total: 0 errors, 3 warnings, 90 lines checked No code changed: arch/x86/kernel/cpu/mcheck/mce_32.o: text data bss dec hex filename 287 42 12 341 155 mce_32.o.before 287 42 12 341 155 mce_32.o.after md5: fede5ff8e6bc3f62e8e691ca6c45eb39 mce_32.o.before.asm fede5ff8e6bc3f62e8e691ca6c45eb39 mce_32.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/mcheck/winchip.cPaolo Ciarrocchi
Before: total: 4 errors, 0 warnings, 36 lines checked After: total: 0 errors, 0 warnings, 36 lines checked No code changed: arch/x86/kernel/cpu/mcheck/winchip.o: text data bss dec hex filename 222 0 4 226 e2 winchip.o.before 222 0 4 226 e2 winchip.o.after md5: 9caefa12256c5f7d71ef324f6d01a2d5 winchip.o.before.asm 9caefa12256c5f7d71ef324f6d01a2d5 winchip.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/mcheck/non-fatal.cPaolo Ciarrocchi
Before: total: 5 errors, 5 warnings, 91 lines checked After: total: 0 errors, 0 warnings, 94 lines checked No code changed: arch/x86/kernel/cpu/mcheck/non-fatal.o: text data bss dec hex filename 441 80 4 525 20d non-fatal.o.before 441 80 4 525 20d non-fatal.o.after md5: 137bc114d2020ad331d5e76444a2c7d3 non-fatal.o.before.asm 137bc114d2020ad331d5e76444a2c7d3 non-fatal.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/amd.cPaolo Ciarrocchi
Before: total: 42 errors, 26 warnings, 350 lines checked After: total: 0 errors, 26 warnings, 352 lines checked No code changed: arch/x86/kernel/cpu/amd.o: text data bss dec hex filename 1936 328 0 2264 8d8 amd.o.before 1936 328 0 2264 8d8 amd.o.after md5: 873430a88faaf31bb4bbfe3a2a691e45 amd.o.before.asm 873430a88faaf31bb4bbfe3a2a691e45 amd.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/transmeta.cPaolo Ciarrocchi
Before: total: 13 errors, 3 warnings, 105 lines checked After: total: 0 errors, 3 warnings, 107 lines checked No code changed: arch/x86/kernel/cpu/transmeta.o: text data bss dec hex filename 713 324 0 1037 40d transmeta.o.before 713 324 0 1037 40d transmeta.o.after md5: 19abe2cafac617e1e2aadc4aa4e9923b transmeta.o.before.asm 19abe2cafac617e1e2aadc4aa4e9923b transmeta.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/mtrr/state.cPaolo Ciarrocchi
Before: total: 6 errors, 5 warnings, 80 lines checked After: total: 0 errors, 4 warnings, 82 lines checked No code changed: arch/x86/kernel/cpu/mtrr/state.o: text data bss dec hex filename 313 0 4 317 13d state.o.before 313 0 4 317 13d state.o.after md5: a0fbd61096205f9180f0bf45ed386d61 state.o.before.asm a0fbd61096205f9180f0bf45ed386d61 state.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/intel.cPaolo Ciarrocchi
Before: total: 37 errors, 16 warnings, 366 lines checked After: total: 0 errors, 15 warnings, 369 lines checked No code changed: arch/x86/kernel/cpu/intel.o: text data bss dec hex filename 1534 452 0 1986 7c2 intel.o.before 1534 452 0 1986 7c2 intel.o.after md5: 1ca348a06de6eb354c4b6ea715a57db5 intel.o.before.asm 1ca348a06de6eb354c4b6ea715a57db5 intel.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/umc.cPaolo Ciarrocchi
Before: total: 3 errors, 1 warnings, 23 lines checked After: total: 0 errors, 0 warnings, 25 lines checked No code changed: arch/x86/kernel/cpu/umc.o: text data bss dec hex filename 24 616 0 640 280 umc.o.before 24 616 0 640 280 umc.o.after md5: e8daa3eaed0963a0cdd2e83c2e1f9823 umc.o.before.asm e8daa3eaed0963a0cdd2e83c2e1f9823 umc.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: coding style fixes to arch/x86/kernel/cpu/mcheck/p6.cPaolo Ciarrocchi
Before: total: 16 errors, 13 warnings, 122 lines checked After: total: 0 errors, 0 warnings, 122 lines checked No code changed: arch/x86/kernel/cpu/mcheck/p6.o: text data bss dec hex filename 1082 0 8 1090 442 p6.o.before 1082 0 8 1090 442 p6.o.after md5: 4e283fbc1b68240f1724d9725007d379 p6.o.before.asm 4e283fbc1b68240f1724d9725007d379 p6.o.after.asm Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: unify cpu/proc|_64.cHiroshi Shimamoto
Now cpu/proc.c and cpu/proc_64.c are same. So cpu/proc_64.c can be removed. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: cosmetic unification cpu/proc|_64.cHiroshi Shimamoto
make cpu/proc.c and cpu/proc_64.c same. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: add power management line in /proc/cpuinfoHiroshi Shimamoto
Change /proc/cpuinfo on 32-bit, it will look like on 64-bit. 'power management' line is added and power management information will be printed at the line. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: make cpu/proc|_64.c similarHiroshi Shimamoto
clean up for unification. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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