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Diffstat (limited to 'tools/power/x86/turbostat/turbostat.c')
-rw-r--r--tools/power/x86/turbostat/turbostat.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index d333c819fa1f..31d756b4ea78 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -74,6 +74,8 @@ unsigned int extra_delta_offset64;
unsigned int aperf_mperf_multiplier = 1;
int do_smi;
double bclk;
+double base_hz;
+double tsc_tweak = 1.0;
unsigned int show_pkg;
unsigned int show_core;
unsigned int show_cpu;
@@ -503,7 +505,7 @@ int format_counters(struct thread_data *t, struct core_data *c,
/* %Busy */
if (has_aperf) {
if (!skip_c0)
- outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc);
+ outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc/tsc_tweak);
else
outp += sprintf(outp, "********");
}
@@ -511,7 +513,7 @@ int format_counters(struct thread_data *t, struct core_data *c,
/* Bzy_MHz */
if (has_aperf)
outp += sprintf(outp, "%8.0f",
- 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
+ 1.0 * t->tsc * tsc_tweak / units * t->aperf / t->mperf / interval_float);
/* TSC_MHz */
outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
@@ -1152,6 +1154,19 @@ int slv_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCLRSV, PCLRSV, PCL__4, PCLRSV,
int amt_pkg_cstate_limits[16] = {PCL__0, PCL__1, PCL__2, PCLRSV, PCLRSV, PCLRSV, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
int phi_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, PCLRSV, PCLUNL, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV, PCLRSV};
+
+static void
+calculate_tsc_tweak()
+{
+ unsigned long long msr;
+ unsigned int base_ratio;
+
+ get_msr(base_cpu, MSR_NHM_PLATFORM_INFO, &msr);
+ base_ratio = (msr >> 8) & 0xFF;
+ base_hz = base_ratio * bclk * 1000000;
+ tsc_tweak = base_hz / tsc_hz;
+}
+
static void
dump_nhm_platform_info(void)
{
@@ -2773,6 +2788,9 @@ void process_cpuid()
if (debug)
dump_cstate_pstate_config_info();
+ if (has_skl_msrs(family, model))
+ calculate_tsc_tweak();
+
return;
}