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author | Ingo Molnar <mingo@elte.hu> | 2009-01-27 12:01:51 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-01-27 12:01:51 +0100 |
commit | 3ddeb51d9c83931c1ca6abf76a38934c5a1ed918 (patch) | |
tree | fc2efb59d627135ea2199a8a68415b162646b121 /arch/x86/kernel | |
parent | 5a611268b69f05262936dd177205acbce4471358 (diff) | |
parent | 5ee810072175042775e39bdd3eaaa68884c27805 (diff) | |
download | op-kernel-dev-3ddeb51d9c83931c1ca6abf76a38934c5a1ed918.zip op-kernel-dev-3ddeb51d9c83931c1ca6abf76a38934c5a1ed918.tar.gz |
Merge branch 'linus' into core/percpu
Conflicts:
arch/x86/kernel/setup_percpu.c
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r-- | arch/x86/kernel/cpu/intel.c | 13 | ||||
-rw-r--r-- | arch/x86/kernel/cpu/mtrr/generic.c | 12 | ||||
-rw-r--r-- | arch/x86/kernel/hpet.c | 3 | ||||
-rw-r--r-- | arch/x86/kernel/setup_percpu.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/signal.c | 11 | ||||
-rw-r--r-- | arch/x86/kernel/tlb_uv.c | 1 | ||||
-rw-r--r-- | arch/x86/kernel/vmi_32.c | 2 |
7 files changed, 34 insertions, 10 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 8ea6929..549f2ad 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -29,6 +29,19 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) { + /* Unmask CPUID levels if masked: */ + if (c->x86 == 6 && c->x86_model >= 15) { + u64 misc_enable; + + rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable); + + if (misc_enable & MSR_IA32_MISC_ENABLE_LIMIT_CPUID) { + misc_enable &= ~MSR_IA32_MISC_ENABLE_LIMIT_CPUID; + wrmsrl(MSR_IA32_MISC_ENABLE, misc_enable); + c->cpuid_level = cpuid_eax(0); + } + } + if ((c->x86 == 0xf && c->x86_model >= 0x03) || (c->x86 == 0x6 && c->x86_model >= 0x0e)) set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC); diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index b59ddcc..0c0a455 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -33,11 +33,13 @@ u64 mtrr_tom2; struct mtrr_state_type mtrr_state = {}; EXPORT_SYMBOL_GPL(mtrr_state); -#undef MODULE_PARAM_PREFIX -#define MODULE_PARAM_PREFIX "mtrr." - -static int mtrr_show; -module_param_named(show, mtrr_show, bool, 0); +static int __initdata mtrr_show; +static int __init mtrr_debug(char *opt) +{ + mtrr_show = 1; + return 0; +} +early_param("mtrr.show", mtrr_debug); /* * Returns the effective MTRR type for the region diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index cd759ad..64d5ad0 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -628,11 +628,12 @@ static int hpet_cpuhp_notify(struct notifier_block *n, switch (action & 0xf) { case CPU_ONLINE: - INIT_DELAYED_WORK(&work.work, hpet_work); + INIT_DELAYED_WORK_ON_STACK(&work.work, hpet_work); init_completion(&work.complete); /* FIXME: add schedule_work_on() */ schedule_delayed_work_on(cpu, &work.work, 0); wait_for_completion(&work.complete); + destroy_timer_on_stack(&work.work.timer); break; case CPU_DEAD: if (hdev) { diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 90b8e15..e553803 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -80,7 +80,7 @@ static inline void setup_node_to_cpumask_map(void) { } #ifdef CONFIG_X86_64 /* correctly size the local cpu masks */ -static void setup_cpu_local_masks(void) +static void __init setup_cpu_local_masks(void) { alloc_bootmem_cpumask_var(&cpu_initialized_mask); alloc_bootmem_cpumask_var(&cpu_callin_mask); diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 89bb766..df0587f 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -632,9 +632,16 @@ badframe: } #ifdef CONFIG_X86_32 -asmlinkage int sys_rt_sigreturn(struct pt_regs regs) +/* + * Note: do not pass in pt_regs directly as with tail-call optimization + * GCC will incorrectly stomp on the caller's frame and corrupt user-space + * register state: + */ +asmlinkage int sys_rt_sigreturn(unsigned long __unused) { - return do_rt_sigreturn(®s); + struct pt_regs *regs = (struct pt_regs *)&__unused; + + return do_rt_sigreturn(regs); } #else /* !CONFIG_X86_32 */ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs) diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index aae15dd..89fce1b 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -201,6 +201,7 @@ static int uv_wait_completion(struct bau_desc *bau_desc, destination_timeouts = 0; } } + cpu_relax(); } return FLUSH_COMPLETE; } diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c index 23206ba..1d3302c 100644 --- a/arch/x86/kernel/vmi_32.c +++ b/arch/x86/kernel/vmi_32.c @@ -858,7 +858,7 @@ void __init vmi_init(void) #endif } -void vmi_activate(void) +void __init vmi_activate(void) { unsigned long flags; |