diff options
| author | Thomas Renninger <[email protected]> | 2011-07-21 11:54:54 +0200 |
|---|---|---|
| committer | Dominik Brodowski <[email protected]> | 2011-07-29 19:37:27 +0200 |
| commit | 029e9f73667f9b4661ac9886f706d75d26850260 (patch) | |
| tree | 4dd812e1de53d07695ce9b889482b032471a6889 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 8fb2e440b223b966f74a04a48f6f71f288fa671b (diff) | |
cpupower: Do detect IDA (opportunistic processor performance) via cpuid
IA32-Intel Devel guide Volume 3A - 14.3.2.1
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...
Opportunistic processor performance operation can be disabled by setting bit 38 of
IA32_MISC_ENABLES. This mechanism is intended for BIOS only. If
IA32_MISC_ENABLES[38] is set, CPUID.06H:EAX[1] will return 0.
Better detect things via cpuid, this cleans up the code a bit
and the MSR parts were not working correctly anyway.
Signed-off-by: Thomas Renninger <[email protected]>
CC: [email protected]
CC: [email protected]
CC: [email protected]
Signed-off-by: Dominik Brodowski <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions