Messages in this thread Patch in this message | | | From | Borislav Petkov <> | Subject | [PATCH 3/7] x86, smp: Add wbinvd_on_all_cpus helper | Date | Thu, 21 Jan 2010 17:41:29 +0100 |
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From: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> --- arch/x86/include/asm/smp.h | 2 ++ arch/x86/lib/smp.c | 6 ++++++ 2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h index 090146e..3c8ed3a 100644 --- a/arch/x86/include/asm/smp.h +++ b/arch/x86/include/asm/smp.h @@ -139,6 +139,7 @@ void play_dead_common(void); void native_send_call_func_ipi(const struct cpumask *mask); void native_send_call_func_single_ipi(int cpu); void wbinvd_on_cpu(int cpu); +int wbinvd_on_all_cpus(void); void smp_store_cpu_info(int id); #define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu) @@ -150,6 +151,7 @@ static inline int num_booting_cpus(void) } #else /* !CONFIG_SMP */ #define wbinvd_on_cpu(cpu) wbinvd() +#define wbinvd_on_all_cpus() wbinvd() #endif /* CONFIG_SMP */ extern unsigned disabled_cpus __cpuinitdata; diff --git a/arch/x86/lib/smp.c b/arch/x86/lib/smp.c index 408c3b7..38f92b0 100644 --- a/arch/x86/lib/smp.c +++ b/arch/x86/lib/smp.c @@ -209,3 +209,9 @@ void wbinvd_on_cpu(int cpu) smp_call_function_single(cpu, native_wbinvd, NULL, 1); } EXPORT_SYMBOL(wbinvd_on_cpu); + +int wbinvd_on_all_cpus(void) +{ + return on_each_cpu(native_wbinvd, NULL, 1); +} +EXPORT_SYMBOL(wbinvd_on_all_cpus); -- 1.6.6
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