diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-28 10:37:06 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-28 10:37:06 -0800 |
| commit | 58f02db466900003b801bdfdeddc4d96ce42b7d5 (patch) | |
| tree | 3aec1f9f4aa147fde3facfe6c5f893ac667ce737 /arch/x86/lib/cache-smp.c | |
| parent | 43a834d86c136b31ef6ad796725eb474a55a908d (diff) | |
| parent | cb19060abfdecac0d1eb2d2f0e7d6b7a3f8bc4f4 (diff) | |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, cacheinfo: Enable L3 CID only on AMD
x86, cacheinfo: Remove NUMA dependency, fix for AMD Fam10h rev D1
x86, cpu: Print AMD virtualization features in /proc/cpuinfo
x86, cacheinfo: Calculate L3 indices
x86, cacheinfo: Add cache index disable sysfs attrs only to L3 caches
x86, cacheinfo: Fix disabling of L3 cache indices
intel-agp: Switch to wbinvd_on_all_cpus
x86, lib: Add wbinvd smp helpers
Diffstat (limited to 'arch/x86/lib/cache-smp.c')
| -rw-r--r-- | arch/x86/lib/cache-smp.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/lib/cache-smp.c b/arch/x86/lib/cache-smp.c new file mode 100644 index 00000000000..a3c66887503 --- /dev/null +++ b/arch/x86/lib/cache-smp.c @@ -0,0 +1,19 @@ +#include <linux/smp.h> +#include <linux/module.h> + +static void __wbinvd(void *dummy) +{ + wbinvd(); +} + +void wbinvd_on_cpu(int cpu) +{ + smp_call_function_single(cpu, __wbinvd, NULL, 1); +} +EXPORT_SYMBOL(wbinvd_on_cpu); + +int wbinvd_on_all_cpus(void) +{ + return on_each_cpu(__wbinvd, NULL, 1); +} +EXPORT_SYMBOL(wbinvd_on_all_cpus); |