diff options
| author | Thomas Gleixner <[email protected]> | 2008-06-09 18:04:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2008-06-10 15:52:21 +0200 |
| commit | 09fd4b4ef5bc7e5222c13acec1bee8cd252fb63f (patch) | |
| tree | f23eec885a8506c2f84987ac443db618fb58aa27 /tools/perf/scripts/python | |
| parent | 732d7be17b98ebfd59e5864c3490f19856fa832c (diff) | |
x86: use cpuid to check MWAIT support for C1
cpuid(0x05) provides extended information about MWAIT in EDX when bit
0 of ECX is set. Bit 4-7 of EDX determine whether MWAIT is supported
for C1. C1E enabled CPUs have these bits set to 0.
Based on an earlier patch from Andi Kleen.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions