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Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 topology discovery improvements from Ingo Molnar:
 "These changes improve topology discovery on AMD CPUs.

  Right now this feeds information displayed in
  /sys/devices/system/cpu/cpuX/cache/indexY/* - but in the future we
  could use this to set up a better scheduling topology."

* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, cacheinfo: Base cache sharing info on CPUID 0x8000001d on AMD
  x86, cacheinfo: Make use of CPUID 0x8000001d for cache information on AMD
  x86, cacheinfo: Determine number of cache leafs using CPUID 0x8000001d on AMD
  x86: Add cpu_has_topoext
This commit is contained in:
Linus Torvalds
2012-12-11 19:58:29 -08:00
parent e9a5a91971 27d3a8a26a
commit a05a4e24dc
5 changed files with 65 additions and 34 deletions
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2
arch/x86/kernel/smpboot.c
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@@ -332,7 +332,7 @@ do { \
static bool __cpuinit match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
{
if (cpu_has(c, X86_FEATURE_TOPOEXT)) {
if (cpu_has_topoext) {
int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
if (c->phys_proc_id == o->phys_proc_id &&