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| author |   Thomas Renninger <trenn@suse.de> | 2011-07-21 11:54:54 +0200 |
|---|---|---|
| committer |   Dominik Brodowski <linux@dominikbrodowski.net> | 2011-07-29 19:37:27 +0200 |
| commit | 029e9f73667f9b4661ac9886f706d75d26850260 (patch) | |
| tree | 4dd812e1de53d07695ce9b889482b032471a6889 /tools/power/cpupower/utils/helpers/helpers.h | |
| parent | cpupower: Show Intel turbo ratio support via ./cpupower frequency-info (diff) | |
| download | linux-dev-029e9f73667f9b4661ac9886f706d75d26850260.tar.xz linux-dev-029e9f73667f9b4661ac9886f706d75d26850260.zip | |
cpupower: Do detect IDA (opportunistic processor performance) via cpuid
IA32-Intel Devel guide Volume 3A - 14.3.2.1
-------------------------------------------
...
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 <trenn@suse.de>
CC: lenb@kernel.org
CC: linux@dominikbrodowski.net
CC: cpufreq@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'tools/power/cpupower/utils/helpers/helpers.h')
| -rw-r--r-- | tools/power/cpupower/utils/helpers/helpers.h | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h index 9125a551ac1d..592ee362b877 100644 --- a/tools/power/cpupower/utils/helpers/helpers.h +++ b/tools/power/cpupower/utils/helpers/helpers.h @@ -58,6 +58,7 @@ enum cpupower_cpu_vendor {X86_VENDOR_UNKNOWN = 0, X86_VENDOR_INTEL, #define CPUPOWER_CAP_PERF_BIAS 0x00000008 #define CPUPOWER_CAP_HAS_TURBO_RATIO 0x00000010 #define CPUPOWER_CAP_IS_SNB 0x00000011 +#define CPUPOWER_CAP_INTEL_IDA 0x00000012 #define MAX_HW_PSTATES 10 @@ -115,9 +116,6 @@ extern int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val); extern int msr_intel_get_perf_bias(unsigned int cpu); extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu); -extern int msr_intel_has_boost_support(unsigned int cpu); -extern int msr_intel_boost_is_active(unsigned int cpu); - /* Read/Write msr ****************************/ /* PCI stuff ****************************/ @@ -163,11 +161,6 @@ static inline int msr_intel_get_perf_bias(unsigned int cpu) static inline unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu) { return 0; }; -static inline int msr_intel_has_boost_support(unsigned int cpu) -{ return -1; }; -static inline int msr_intel_boost_is_active(unsigned int cpu) -{ return -1; }; - /* Read/Write msr ****************************/ static inline int cpufreq_has_boost_support(unsigned int cpu, int *support, |