diff options
author | Borislav Petkov <borislav.petkov@amd.com> | 2010-01-22 16:01:03 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-26 07:41:27 -0700 |
commit | 2444b629ee518745f54c2f7cf9e4de3d48e834cb (patch) | |
tree | 0aec94ee12bcfa0d6898bd94b2f1ccafaab69bfe /arch/x86/include | |
parent | b98388e5a6d1887a3c96f9543fe79732dd1fc030 (diff) |
x86, lib: Add wbinvd smp helpers
commit a7b480e7f30b3813353ec009f10f2ac7a6669f3b upstream.
Add wbinvd_on_cpu and wbinvd_on_all_cpus stubs for executing wbinvd on a
particular CPU.
[ hpa: renamed lib/smp.c to lib/cache-smp.c ]
[ hpa: wbinvd_on_all_cpus() returns int, but wbinvd() returns
void. Thus, the former cannot be a macro for the latter,
replace with an inline function. ]
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
LKML-Reference: <1264172467-25155-2-git-send-email-bp@amd64.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/x86/include')
-rw-r--r-- | arch/x86/include/asm/smp.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h index 1e796782cd7b..4cfc90824068 100644 --- a/arch/x86/include/asm/smp.h +++ b/arch/x86/include/asm/smp.h @@ -135,6 +135,8 @@ int native_cpu_disable(void); void native_cpu_die(unsigned int cpu); void native_play_dead(void); void play_dead_common(void); +void wbinvd_on_cpu(int cpu); +int wbinvd_on_all_cpus(void); void native_send_call_func_ipi(const struct cpumask *mask); void native_send_call_func_single_ipi(int cpu); @@ -147,6 +149,13 @@ static inline int num_booting_cpus(void) { return cpumask_weight(cpu_callout_mask); } +#else /* !CONFIG_SMP */ +#define wbinvd_on_cpu(cpu) wbinvd() +static inline int wbinvd_on_all_cpus(void) +{ + wbinvd(); + return 0; +} #endif /* CONFIG_SMP */ extern unsigned disabled_cpus __cpuinitdata; |