[PATCH 3/4] tools/power turbostat: decode MSR_IA32_POWER_CTL

[Len Brown]

From: Len Brown <len.br...@intel.com>

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.br...@intel.com>
---
 arch/x86/include/uapi/asm/msr-index.h |  2 ++
 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 433a59f..7bdaf7c 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 b326878..75f64e0 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)
-- 
1.8.1.2.422.g08c0e7f

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