aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/cpu
Commit message (Collapse)AuthorAgeFilesLines
* x86, xsave: context switch support using xsave/xrstorSuresh Siddha2008-07-301-1/+4
| | | | | | | | | | | | | | | Uses xsave/xrstor (instead of traditional fxsave/fxrstor) in context switch when available. Introduces TS_XSAVE flag, which determine the need to use xsave/xrstor instructions during context switch instead of the legacy fxsave/fxrstor instructions. Thread-synchronous status word is already in L1 cache during this code patch and thus minimizes the performance penality compared to (cpu_has_xsave) checks. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86, xsave: enable xsave/xrstor on cpus with xsave supportSuresh Siddha2008-07-301-0/+8
| | | | | | | | | | Enables xsave/xrstor by turning on cr4.osxsave on cpu's which have the xsave support. For now, features that OS supports/enabled are FP and SSE. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86, xsave: xsave cpuid feature bitsSuresh Siddha2008-07-301-1/+1
| | | | | | | | Add xsave CPU feature bits. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge commit 'v2.6.27-rc1' into x86/coreIngo Molnar2008-07-305-29/+14
|\ | | | | | | | | | | | | | | | | | | Conflicts: include/asm-x86/dma-mapping.h include/asm-x86/namei.h include/asm-x86/uaccess.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * cpumask: change cpumask_of_cpu_ptr to use new cpumask_of_cpuMike Travis2008-07-265-29/+14
| | | | | | | | | | | | | | | | | | | | | | * Replace previous instances of the cpumask_of_cpu_ptr* macros with a the new (lvalue capable) generic cpumask_of_cpu(). Signed-off-by: Mike Travis <travis@sgi.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jack Steiner <steiner@sgi.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'linus' into x86/x2apicIngo Molnar2008-07-2510-93/+148
|\ \ | |/ | | | | | | | | | | | | Conflicts: drivers/pci/dmar.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * Merge branch 'cpus4096-for-linus' of ↵Linus Torvalds2008-07-239-87/+135
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits) NR_CPUS: Replace NR_CPUS in speedstep-centrino.c cpumask: Provide a generic set of CPUMASK_ALLOC macros, FIXUP NR_CPUS: Replace NR_CPUS in cpufreq userspace routines NR_CPUS: Replace per_cpu(..., smp_processor_id()) with __get_cpu_var NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genapic_flat_64.c NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genx2apic_uv_x.c NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/proc.c NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/mcheck/mce_64.c cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c, fix cpumask: Use optimized CPUMASK_ALLOC macros in the centrino_target cpumask: Provide a generic set of CPUMASK_ALLOC macros cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c cpumask: Optimize cpumask_of_cpu in kernel/time/tick-common.c cpumask: Optimize cpumask_of_cpu in drivers/misc/sgi-xp/xpc_main.c cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/ldt.c cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.c cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr Revert "cpumask: introduce new APIs" cpumask: make for_each_cpu_mask a bit smaller net: Pass reference to cpumask variable in net/sunrpc/svc.c ... Fix up trivial conflicts in drivers/cpufreq/cpufreq.c manually
| | * NR_CPUS: Replace NR_CPUS in speedstep-centrino.cMike Travis2008-07-201-34/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some cleanups in speedstep-centrino.c for NR_CPUS=4096. * Use new CPUMASK_PTR (instead of old CPUMASK_VAR). * Replace arrays sized by NR_CPUS with percpu variables. * Cleanup some formatting problems (>80 chars per line) and other checkpatch complaints. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/proc.cMike Travis2008-07-201-1/+1
| | | | | | | | | | | | | | | | | | | | | * Use nr_cpu_ids instead of NR_CPUS to limit traversal of cpu online map. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/mcheck/mce_64.cMike Travis2008-07-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | * nr_cpu_ids should be used to allocate arrays based on the number of cpu's present. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * cpumask: Use optimized CPUMASK_ALLOC macros in the centrino_targetMike Travis2008-07-181-28/+45
| | | | | | | | | | | | | | | | | | | | | * Use the CPUMASK_ALLOC macros in the centrino_target() function. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptrMike Travis2008-07-185-13/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * This patch replaces the dangerous lvalue version of cpumask_of_cpu with new cpumask_of_cpu_ptr macros. These are patterned after the node_to_cpumask_ptr macros. In general terms, if there is a cpumask_of_cpu_map[] then a pointer to the cpumask_of_cpu_map[cpu] entry is used. The cpumask_of_cpu_map is provided when there is a large NR_CPUS count, reducing greatly the amount of code generated and stack space used for cpumask_of_cpu(). The pointer to the cpumask_t value is needed for calling set_cpus_allowed_ptr() to reduce the amount of stack space needed to pass the cpumask_t value. If there isn't a cpumask_of_cpu_map[], then a temporary variable is declared and filled in with value from cpumask_of_cpu(cpu) as well as a pointer variable pointing to this temporary variable. Afterwards, the pointer is used to reference the cpumask value. The compiler will optimize out the extra dereference through the pointer as well as the stack space used for the pointer, resulting in identical code. A good example of the orthogonal usages is in net/sunrpc/svc.c: case SVC_POOL_PERCPU: { unsigned int cpu = m->pool_to[pidx]; cpumask_of_cpu_ptr(cpumask, cpu); *oldmask = current->cpus_allowed; set_cpus_allowed_ptr(current, cpumask); return 1; } case SVC_POOL_PERNODE: { unsigned int node = m->pool_to[pidx]; node_to_cpumask_ptr(nodecpumask, node); *oldmask = current->cpus_allowed; set_cpus_allowed_ptr(current, nodecpumask); return 1; } Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * Merge branch 'linus' into cpus4096Ingo Molnar2008-07-1622-283/+2247
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/x86/xen/smp.c kernel/sched_rt.c net/iucv/iucv.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * \ Merge commit 'v2.6.26-rc9' into cpus4096Ingo Molnar2008-07-062-3/+14
| | |\ \
| | * | | x86: use performance variant for_each_cpu_mask_nrMike Travis2008-05-237-20/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change references from for_each_cpu_mask to for_each_cpu_mask_nr where appropriate Reviewed-by: Paul Jackson <pj@sgi.com> Reviewed-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> commit 2d474871e2fb092eb46a0930aba5442e10eb96cc Author: Mike Travis <travis@sgi.com> Date: Mon May 12 21:21:13 2008 +0200
| * | | | sysdev: Convert the x86 mce tolerant sysdev attribute to generic attributeAndi Kleen2008-07-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the new generic int attribute accessors for the x86 mce tolerant attribute. Simple example to illustrate the new macros. There are much more places all over the tree that could be converted like this. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | sysdev: Pass the attribute to the low level sysdev show/store functionAndi Kleen2008-07-212-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allow to dynamically generate attributes and share show/store functions between attributes. Right now most attributes are generated by special macros and lots of duplicated code. With the attribute passed it's instead possible to attach some data to the attribute and then use that in shared low level functions to do different things. I need this for the dynamically generated bank attributes in the x86 machine check code, but it'll allow some further cleanups. I converted all users in tree to the new show/store prototype. It's a single huge patch to avoid unbisectable sections. Runtime tested: x86-32, x86-64 Compiled only: ia64, powerpc Not compile tested/only grep converted: sh, arm, avr32 Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | Merge branch 'linus' into x86/x2apicIngo Molnar2008-07-226-22/+9
|\ \ \ \ \ | |/ / / /
| * | | | Merge branch 'next' of ↵Linus Torvalds2008-07-211-1/+0
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] cpufreq: remove CVS keywords [CPUFREQ] change cpu freq arrays to per_cpu variables
| | * | | | [CPUFREQ] cpufreq: remove CVS keywordsAdrian Bunk2008-05-191-1/+0
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Dave Jones <davej@redhat.com>
| * | | | x86: convert Dprintk to pr_debugThomas Gleixner2008-07-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are a couple of places where (P)Dprintk is used which is an old compile time enabled printk wrapper. Convert it to the generic pr_debug(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| | | | |
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| | \ \ \
| *-----------------. \ \ \ Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', ↵Ingo Molnar2008-07-216-39/+17
| |\ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | |_|_|/ / | | | | | | | | | |/| | | / | | | |_|_|_|_|_|_|_|_|_|/ | | |/| | | | | | | | | | 'x86/core', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus
| | | | | | | | | | | * | x86_64: further cleanup of 32-bit compat syscall mechanismsJeremy Fitzhardinge2008-07-162-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AMD only supports "syscall" from 32-bit compat usermode. Intel and Centaur(?) only support "sysenter" from 32-bit compat usermode. Set the X86 feature bits accordingly, and set up the vdso in accordance with those bits. On the offchance we run on in a 64-bit environment which supports neither syscall nor sysenter from 32-bit mode, then fall back to the int $0x80 vdso. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| | | | | | | | | | | * | x86: use __page_aligned_data/bssJeremy Fitzhardinge2008-07-161-2/+2
| | | |_|_|_|_|_|_|_|/ / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update arch/x86's use of page-aligned variables. The change to arch/x86/xen/mmu.c fixes an actual bug, but the rest are cleanups and to set a precedent. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | | * | | | | | x86: consolidate the definition of the force_mwait variableThomas Petazzoni2008-07-181-2/+0
| | | |_|_|/ / / / / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The force_mwait variable iss defined either in arch/x86/kernel/cpu/amd.c or in arch/x86/kernel/setup_64.c, but it is only initialized and used in arch/x86/kernel/process.c. This patch moves the declaration to arch/x86/kernel/process.c. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: michael@free-electrons.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | x86: remove extra calling to get ext cpuid levelYinghai Lu2008-07-211-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | | * | | | | | x86: use setup_clear_cpu_cap() when disabling the lapicYinghai Lu2008-07-211-4/+0
| | | |_|/ / / / / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ... so don't need to call clear_cpu_cap again in early_identify_cpu, and could use cleared_cpu_caps like other places. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | | * | | | | | x86: reduce force_mwait visibilityJan Beulich2008-07-181-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's not used anywhere outside its single referencing file. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| | | | * | | | | | arch/x86/kernel/cpu/common_64.c: remove double inclusionsAlexander Beregalov2008-07-181-3/+0
| | | |/ / / / / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86: remove double inclusions in arch/x86/kernel/cpu/common_64.c Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Cc: yhlu.kernel@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | | | | x86, intel_cacheinfo: fix use-after-free cache_kobjectAkinobu Mita2008-07-181-4/+3
| |/ / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This avoids calling kobject_uevent() with cache_kobject that has already been deallocated in an error path. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | | | Merge branch 'x86/apic' into x86/x2apicIngo Molnar2008-07-183-24/+13
|\ \ \ \ \ \ \ \ | | |/ / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/x86/kernel/paravirt.c arch/x86/kernel/smpboot.c arch/x86/kernel/vmi_32.c arch/x86/lguest/boot.c arch/x86/xen/enlighten.c include/asm-x86/apic.h include/asm-x86/paravirt.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | | | x86: APIC: remove apic_write_around(); use alternativesMaciej W. Rozycki2008-07-183-24/+13
| |/ / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use alternatives to select the workaround for the 11AP Pentium erratum for the affected steppings on the fly rather than build time. Remove the X86_GOOD_APIC configuration option and replace all the calls to apic_write_around() with plain apic_write(), protecting accesses to the ESR as appropriate due to the 3AP Pentium erratum. Remove apic_read_around() and all its invocations altogether as not needed. Remove apic_write_atomic() and all its implementing backends. The use of ASM_OUTPUT2() is not strictly needed for input constraints, but I have used it for readability's sake. I had the feeling no one else was brave enough to do it, so I went ahead and here it is. Verified by checking the generated assembly and tested with both a 32-bit and a 64-bit configuration, also with the 11AP "feature" forced on and verified with gdb on /proc/kcore to work as expected (as an 11AP machines are quite hard to get hands on these days). Some script complained about the use of "volatile", but apic_write() needs it for the same reason and is effectively a replacement for writel(), so I have disregarded it. I am not sure what the policy wrt defconfig files is, they are generated and there is risk of a conflict resulting from an unrelated change, so I have left changes to them out. The option will get removed from them at the next run. Some testing with machines other than mine will be needed to avoid some stupid mistake, but despite its volume, the change is not really that intrusive, so I am fairly confident that because it works for me, it will everywhere. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | | Merge branch 'linus' into x86/x2apicIngo Molnar2008-07-189-34/+25
|\ \ \ \ \ \ \ | |/ / / / / /
| * | | | | | Merge branch 'generic-ipi' into generic-ipi-for-linusIngo Molnar2008-07-154-8/+8
| |\ \ \ \ \ \ | | |/ / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/powerpc/Kconfig arch/s390/kernel/time.c arch/x86/kernel/apic_32.c arch/x86/kernel/cpu/perfctr-watchdog.c arch/x86/kernel/i8259_64.c arch/x86/kernel/ldt.c arch/x86/kernel/nmi_64.c arch/x86/kernel/smpboot.c arch/x86/xen/smp.c include/asm-x86/hw_irq_32.h include/asm-x86/hw_irq_64.h include/asm-x86/mach-default/irq_vectors.h include/asm-x86/mach-voyager/irq_vectors.h include/asm-x86/smp.h kernel/Makefile Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | | | | on_each_cpu(): kill unused 'retry' parameterJens Axboe2008-06-263-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's not even passed on to smp_call_function() anymore, since that was removed. So kill it. Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| | * | | | | smp_call_function: get rid of the unused nonatomic/retry argumentJens Axboe2008-06-261-2/+2
| | | |/ / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's never used and the comments refer to nonatomic and retry interchangably. So get rid of it. Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6Linus Torvalds2008-07-141-0/+4
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'bkl-removal' of git://git.lwn.net/linux-2.6: (146 commits) IB/umad: BKL is not needed for ib_umad_open() IB/uverbs: BKL is not needed for ib_uverbs_open() bf561-coreb: BKL unneeded for open() Call fasync() functions without the BKL snd/PCM: fasync BKL pushdown ipmi: fasync BKL pushdown ecryptfs: fasync BKL pushdown Bluetooth VHCI: fasync BKL pushdown tty_io: fasync BKL pushdown tun: fasync BKL pushdown i2o: fasync BKL pushdown mpt: fasync BKL pushdown Remove BKL from remote_llseek v2 Make FAT users happier by not deadlocking x86-mce: BKL pushdown vmwatchdog: BKL pushdown vmcp: BKL pushdown via-pmu: BKL pushdown uml-random: BKL pushdown uml-mmapper: BKL pushdown ...
| | * \ \ \ \ Merge commit 'v2.6.26' into bkl-removalJonathan Corbet2008-07-142-3/+14
| | |\ \ \ \ \ | | | |/ / / /
| | * | | | | x86-mce: BKL pushdownArnd Bergmann2008-07-021-0/+4
| | | |_|_|/ | | |/| | | | | | | | | | | | | | | Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | x86: get x86_phys_bits earlyYinghai Lu2008-07-143-26/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when try to make hpet_enable use io_remap instead fixmap got ioremap: invalid physical address fed00000 ------------[ cut here ]------------ WARNING: at arch/x86/mm/ioremap.c:161 __ioremap_caller+0x8c/0x2f3() Modules linked in: Pid: 0, comm: swapper Not tainted 2.6.26-rc9-tip-01873-ga9827e7-dirty #358 Call Trace: [<ffffffff8026615e>] warn_on_slowpath+0x6c/0xa7 [<ffffffff802e2313>] ? __slab_alloc+0x20a/0x3fb [<ffffffff802d85c5>] ? mpol_new+0x88/0x17d [<ffffffff8022a4f4>] ? mcount_call+0x5/0x31 [<ffffffff8022a4f4>] ? mcount_call+0x5/0x31 [<ffffffff8024b0d2>] __ioremap_caller+0x8c/0x2f3 [<ffffffff80e86dbd>] ? hpet_enable+0x39/0x241 [<ffffffff8022a4f4>] ? mcount_call+0x5/0x31 [<ffffffff8024b466>] ioremap_nocache+0x2a/0x40 [<ffffffff80e86dbd>] hpet_enable+0x39/0x241 [<ffffffff80e7a1f6>] hpet_time_init+0x21/0x4e [<ffffffff80e730e9>] start_kernel+0x302/0x395 [<ffffffff80e722aa>] x86_64_start_reservations+0xb9/0xd4 [<ffffffff80e722fe>] ? x86_64_init_pda+0x39/0x4f [<ffffffff80e72400>] x86_64_start_kernel+0xec/0x107 ---[ end trace a7919e7f17c0a725 ]--- it seems for amd system that is set later... try to move setting early in early_identify_cpu. and remove same code for intel and centaur. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | x86: fix numaq_tsc_disable callingYinghai Lu2008-07-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | got this on a test-system: calling numaq_tsc_disable+0x0/0x39 NUMAQ: disabling TSC initcall numaq_tsc_disable+0x0/0x39 returned 0 after 0 msecs that's because we should not be using arch_initcall to call numaq_tsc_disable. need to call it in setup_arch before time_init()/tsc_init() and call it in init_intel() to make the cpu feature bits right. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | x86: max_low_pfn_mapped fix, #2Yinghai Lu2008-07-131-0/+1
| | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tighten the boundary checks around max_low_pfn_mapped - dont overmap nor undermap into holes. also print out tseg for AMD cpus, for diagnostic purposes. (this is an SMM area, and we split up any big mappings around that area) Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | x64, x2apic/intr-remap: add x2apic support, including enabling ↵Suresh Siddha2008-07-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | interrupt-remapping x2apic support. Interrupt-remapping must be enabled before enabling x2apic, this is needed to ensure that IO interrupts continue to work properly after the cpu mode is changed to x2apic(which uses 32bit extended physical/cluster apic id). On systems where apicid's are > 255, BIOS can handover the control to OS in x2apic mode. Or if the OS handover was in legacy xapic mode, check if it is capable of x2apic mode. And if we succeed in enabling Interrupt-remapping, then we can enable x2apic mode in the CPU. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | x64, x2apic/intr-remap: cpuid bits for x2apic featureSuresh Siddha2008-07-121-1/+1
|/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cpuid feature for x2apic. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | x86_64: add pseudo-features for 32-bit compat syscallJeremy Fitzhardinge2008-07-113-0/+7
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | Add pseudo-feature bits to describe whether the CPU supports sysenter and/or syscall from ia32-compat userspace. This removes a hardcoded test in vdso32-setup. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: introduce max_low_pfn_mapped for 64-bitYinghai Lu2008-07-111-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | when more than 4g memory is installed, don't map the big hole below 4g. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: remove open-coded save/load segment operationsJeremy Fitzhardinge2008-07-081-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes a pile of buggy open-coded implementations of savesegment and loadsegment. (They are buggy because they don't have memory barriers to prevent them from being reordered with respect to memory accesses.) Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: xen-devel <xen-devel@lists.xensource.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: perfctr-watchdog.c - coding style cleanupCyrill Gorcunov2008-07-081-90/+112
| | | | | | | | | | | | | | | | | | | | | | | | Just some code beautification. Nothing else. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: macro@linux-mips.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: move boot_params declaring to setup.cYinghai Lu2008-07-081-6/+0
| | | | | | | | | | | | | | | Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: merge setup64.c into common_64.cYinghai Lu2008-07-081-1/+276
| | | | | | | | | | | | | | | Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
generated by cgit v1.1 at 2024-07-27 23:57:56 +0000