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| author | Andreas Herrmann <andreas.herrmann3@amd.com> | 2012-10-19 08:59:33 (GMT) |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-11-13 19:22:29 (GMT) |
| commit | 04a1541828ea223169eb44a336bfad8ec0dfb46a (patch) | |
| tree | a670df6305266009a488f52ad763eb5a13767abf /arch/x86/kernel/cpu/amd.c | |
| parent | 193f3fcb3ab769bab4a2b9fa181eef3e5699a352 (diff) | |
| download | linux-04a1541828ea223169eb44a336bfad8ec0dfb46a.tar.xz | |
x86, cacheinfo: Determine number of cache leafs using CPUID 0x8000001d on AMD
CPUID 0x8000001d works quite similar to Intels' CPUID function 4.
Use it to determine number of cache leafs.
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Link: http://lkml.kernel.org/r/20121019085933.GE26718@alberich
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/cpu/amd.c')
| -rw-r--r-- | arch/x86/kernel/cpu/amd.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 64e9ad4..a8538e6 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -643,12 +643,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) detect_ht(c); #endif - if (c->extended_cpuid_level >= 0x80000006) { - if (cpuid_edx(0x80000006) & 0xf000) - num_cache_leaves = 4; - else - num_cache_leaves = 3; - } + init_amd_cacheinfo(c); if (c->x86 >= 0xf) set_cpu_cap(c, X86_FEATURE_K8); |