diff options
| author | Thomas Renninger <trenn@suse.de> | 2011-07-21 13:54:53 +0400 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2011-07-29 21:37:25 +0400 |
| commit | 8fb2e440b223b966f74a04a48f6f71f288fa671b (patch) | |
| tree | 3a9f2c19c039072d0b2641385bf0e6897bed2361 /tools/power/cpupower/utils/helpers/cpuid.c | |
| parent | 76b659a31df5174d71832b7882ef31b32e1f8d59 (diff) | |
| download | linux-8fb2e440b223b966f74a04a48f6f71f288fa671b.tar.xz | |
cpupower: Show Intel turbo ratio support via ./cpupower frequency-info
This adds the last piece missing from turbostat (if called with -v).
It shows on Intel machines supporting Turbo Boost how many cores
have to be active/idle to enter which boost mode (frequency).
Whether the HW really enters these boost modes can be verified via
./cpupower monitor.
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/cpuid.c')
| -rw-r--r-- | tools/power/cpupower/utils/helpers/cpuid.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c index 944b2c1659d8..a97f091fcf2b 100644 --- a/tools/power/cpupower/utils/helpers/cpuid.c +++ b/tools/power/cpupower/utils/helpers/cpuid.c @@ -130,10 +130,37 @@ out: cpu_info->caps |= CPUPOWER_CAP_AMD_CBP; } - /* Intel's perf-bias MSR support */ if (cpu_info->vendor == X86_VENDOR_INTEL) { + /* Intel's perf-bias MSR support */ if (cpuid_level >= 6 && (cpuid_ecx(6) & (1 << 3))) cpu_info->caps |= CPUPOWER_CAP_PERF_BIAS; + + /* Intel's Turbo Ratio Limit support */ + if (cpu_info->family == 6) { + switch (cpu_info->model) { + case 0x1A: /* Core i7, Xeon 5500 series + * Bloomfield, Gainstown NHM-EP + */ + case 0x1E: /* Core i7 and i5 Processor + * Clarksfield, Lynnfield, Jasper Forest + */ + case 0x1F: /* Core i7 and i5 Processor - Nehalem */ + case 0x25: /* Westmere Client + * Clarkdale, Arrandale + */ + case 0x2C: /* Westmere EP - Gulftown */ + cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO; + case 0x2A: /* SNB */ + case 0x2D: /* SNB Xeon */ + cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO; + cpu_info->caps |= CPUPOWER_CAP_IS_SNB; + break; + case 0x2E: /* Nehalem-EX Xeon - Beckton */ + case 0x2F: /* Westmere-EX Xeon - Eagleton */ + default: + break; + } + } } /* printf("ID: %u - Extid: 0x%x - Caps: 0x%llx\n", |