Commit 2e8458df authored by Andreas Herrmann's avatar Andreas Herrmann Committed by H. Peter Anvin

x86, cacheinfo: Make use of CPUID 0x8000001d for cache information on AMD

Rely on CPUID 0x8000001d for cache information when AMD CPUID topology
extensions are available.
Signed-off-by: default avatarAndreas Herrmann <andreas.herrmann3@amd.com>
Link: http://lkml.kernel.org/r/20121019090049.GF26718@alberichSigned-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent 04a15418
...@@ -538,6 +538,10 @@ __cpuinit cpuid4_cache_lookup_regs(int index, ...@@ -538,6 +538,10 @@ __cpuinit cpuid4_cache_lookup_regs(int index,
unsigned edx; unsigned edx;
if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) { if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) {
if (cpu_has_topoext)
cpuid_count(0x8000001d, index, &eax.full,
&ebx.full, &ecx.full, &edx);
else
amd_cpuid4(index, &eax, &ebx, &ecx); amd_cpuid4(index, &eax, &ebx, &ecx);
amd_init_l3_cache(this_leaf, index); amd_init_l3_cache(this_leaf, index);
} else { } else {
......
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