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| author | Len Brown <len.brown@intel.com> | 2013-01-31 21:22:15 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2013-02-09 01:26:16 +0100 |
| commit | 679204183472af16e8e75d2b1479459ad19bc67c (patch) | |
| tree | 0508a4b33d9bfbb608c854da62da02224e0c1aa1 | |
| parent | tools/power turbostat: support Haswell (diff) | |
| download | linux-679204183472af16e8e75d2b1479459ad19bc67c.tar.xz linux-679204183472af16e8e75d2b1479459ad19bc67c.zip | |
tools/power turbostat: decode MSR_IA32_POWER_CTL
When verbose is enabled, print the C1E-Enable
bit in MSR_IA32_POWER_CTL.
also delete some redundant tests on the verbose variable.
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | arch/x86/include/uapi/asm/msr-index.h | 2 | ||||
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 13 |
2 files changed, 9 insertions, 6 deletions
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h index 433a59fb1a74..7bdaf7c9b1e0 100644 --- a/arch/x86/include/uapi/asm/msr-index.h +++ b/arch/x86/include/uapi/asm/msr-index.h @@ -103,6 +103,8 @@ #define DEBUGCTLMSR_BTS_OFF_USR (1UL << 10) #define DEBUGCTLMSR_FREEZE_LBRS_ON_PMI (1UL << 11) +#define MSR_IA32_POWER_CTL 0x000001fc + #define MSR_IA32_MC0_CTL 0x00000400 #define MSR_IA32_MC0_STATUS 0x00000401 #define MSR_IA32_MC0_ADDR 0x00000402 diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index b326878bd5d1..75f64e05ec30 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -908,8 +908,7 @@ void print_verbose_header(void) get_msr(0, MSR_NHM_PLATFORM_INFO, &msr); - if (verbose) - fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr); + fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr); ratio = (msr >> 40) & 0xFF; fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n", @@ -919,13 +918,16 @@ void print_verbose_header(void) fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n", ratio, bclk, ratio * bclk); + get_msr(0, MSR_IA32_POWER_CTL, &msr); + fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E: %sabled)\n", + msr, msr & 0x2 ? "EN" : "DIS"); + if (!do_ivt_turbo_ratio_limit) goto print_nhm_turbo_ratio_limits; get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr); - if (verbose) - fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); + fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); ratio = (msr >> 56) & 0xFF; if (ratio) @@ -1016,8 +1018,7 @@ print_nhm_turbo_ratio_limits: get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr); - if (verbose) - fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); + fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); ratio = (msr >> 56) & 0xFF; if (ratio) |