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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-01 09:41:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-01 09:41:03 -0700 |
| commit | 6b2282aa372665c14ea1100b63ac0703051407e9 (patch) | |
| tree | cae241bd8e9653032ab33a9baf1401a3373ab307 /arch/x86/kernel/cpu/common.c | |
| parent | 0c0fee018d14b585461b146bdeda8bab9a61c211 (diff) | |
| parent | b1c599b8ff80ea79b9f8277a3f9f36a7b0cfedce (diff) | |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu updates from Ingo Molnar:
"Two changes: a suspend/resume quirk and a new CPUID bit definition"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpufeature: Add feature bit for Intel's Silicon Debug CPUID bit
x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index b128808853a2..07ce52c22ec8 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -13,6 +13,7 @@ #include <linux/kgdb.h> #include <linux/smp.h> #include <linux/io.h> +#include <linux/syscore_ops.h> #include <asm/stackprotector.h> #include <asm/perf_event.h> @@ -1488,3 +1489,20 @@ inline bool __static_cpu_has_safe(u16 bit) return boot_cpu_has(bit); } EXPORT_SYMBOL_GPL(__static_cpu_has_safe); + +static void bsp_resume(void) +{ + if (this_cpu->c_bsp_resume) + this_cpu->c_bsp_resume(&boot_cpu_data); +} + +static struct syscore_ops cpu_syscore_ops = { + .resume = bsp_resume, +}; + +static int __init init_cpu_syscore(void) +{ + register_syscore_ops(&cpu_syscore_ops); + return 0; +} +core_initcall(init_cpu_syscore); |