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authorLen Brown <len.brown@intel.com>2015-03-23 20:29:09 -0400
committerLen Brown <len.brown@intel.com>2015-04-18 14:20:50 -0400
commitfcd17211bd807533f6d4be20b1a4644e9191bfe2 (patch)
treee601894be257934aca8ce79e29b2b1a2532266f5 /tools
parent12bb43c6150525cd53af77a1a7b9ff2752944cbd (diff)
tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2
and up to 18 cores of turbo ratio limit when using the turbostat --debug option. Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/power/x86/turbostat/turbostat.c141
1 files changed, 105 insertions, 36 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index b699a0eb57cb..f05a3f7b5d4c 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -65,8 +65,6 @@ unsigned int units = 1000000; /* MHz etc */
unsigned int genuine_intel;
unsigned int has_invariant_tsc;
unsigned int do_nhm_platform_info;
-unsigned int do_nhm_turbo_ratio_limit;
-unsigned int do_ivt_turbo_ratio_limit;
unsigned int extra_msr_offset32;
unsigned int extra_msr_offset64;
unsigned int extra_delta_offset32;
@@ -1078,14 +1076,12 @@ int slv_pkg_cstate_limits[8] = {PCL__0, PCL__1, PCLRSV, PCLRSV, PCL__4, PCLRSV,
int amt_pkg_cstate_limits[8] = {PCL__0, PCL__1, PCL__2, PCLRSV, PCLRSV, PCLRSV, PCL__6, PCL__7};
int phi_pkg_cstate_limits[8] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, PCLRSV, PCLUNL};
-void dump_system_config_info(void)
+static void
+dump_nhm_platform_info(void)
{
unsigned long long msr;
unsigned int ratio;
- if (!do_nhm_platform_info)
- return;
-
get_msr(0, MSR_NHM_PLATFORM_INFO, &msr);
fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr);
@@ -1102,8 +1098,36 @@ void dump_system_config_info(void)
fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
msr, msr & 0x2 ? "EN" : "DIS");
- if (!do_ivt_turbo_ratio_limit)
- goto print_nhm_turbo_ratio_limits;
+ return;
+}
+
+static void
+dump_hsw_turbo_ratio_limits(void)
+{
+ unsigned long long msr;
+ unsigned int ratio;
+
+ get_msr(0, MSR_TURBO_RATIO_LIMIT2, &msr);
+
+ fprintf(stderr, "cpu0: MSR_TURBO_RATIO_LIMIT2: 0x%08llx\n", msr);
+
+ ratio = (msr >> 8) & 0xFF;
+ if (ratio)
+ fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 18 active cores\n",
+ ratio, bclk, ratio * bclk);
+
+ ratio = (msr >> 0) & 0xFF;
+ if (ratio)
+ fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 17 active cores\n",
+ ratio, bclk, ratio * bclk);
+ return;
+}
+
+static void
+dump_ivt_turbo_ratio_limits(void)
+{
+ unsigned long long msr;
+ unsigned int ratio;
get_msr(0, MSR_TURBO_RATIO_LIMIT1, &msr);
@@ -1148,26 +1172,14 @@ void dump_system_config_info(void)
if (ratio)
fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
ratio, bclk, ratio * bclk);
+ return;
+}
-print_nhm_turbo_ratio_limits:
- get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
-
-#define SNB_C1_AUTO_UNDEMOTE (1UL << 27)
-#define SNB_C3_AUTO_UNDEMOTE (1UL << 28)
-
- fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr);
-
- fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n",
- (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
- (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
- (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
- (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
- (msr & (1 << 15)) ? "" : "UN",
- (unsigned int)msr & 7,
- pkg_cstate_limit_strings[pkg_cstate_limit]);
-
- if (!do_nhm_turbo_ratio_limit)
- return;
+static void
+dump_nhm_turbo_ratio_limits(void)
+{
+ unsigned long long msr;
+ unsigned int ratio;
get_msr(0, MSR_TURBO_RATIO_LIMIT, &msr);
@@ -1212,7 +1224,30 @@ print_nhm_turbo_ratio_limits:
if (ratio)
fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
ratio, bclk, ratio * bclk);
+ return;
+}
+static void
+dump_nhm_cst_cfg(void)
+{
+ unsigned long long msr;
+
+ get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
+
+#define SNB_C1_AUTO_UNDEMOTE (1UL << 27)
+#define SNB_C3_AUTO_UNDEMOTE (1UL << 28)
+
+ fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr);
+
+ fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n",
+ (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
+ (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
+ (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
+ (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
+ (msr & (1 << 15)) ? "" : "UN",
+ (unsigned int)msr & 7,
+ pkg_cstate_limit_strings[pkg_cstate_limit]);
+ return;
}
void free_all_buffers(void)
@@ -1625,12 +1660,49 @@ int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
switch (model) {
case 0x3E: /* IVB Xeon */
+ case 0x3F: /* HSW Xeon */
+ return 1;
+ default:
+ return 0;
+ }
+}
+int has_hsw_turbo_ratio_limit(unsigned int family, unsigned int model)
+{
+ if (!genuine_intel)
+ return 0;
+
+ if (family != 6)
+ return 0;
+
+ switch (model) {
+ case 0x3F: /* HSW Xeon */
return 1;
default:
return 0;
}
}
+static void
+dump_cstate_pstate_config_info(family, model)
+{
+ if (!do_nhm_platform_info)
+ return;
+
+ dump_nhm_platform_info();
+
+ if (has_hsw_turbo_ratio_limit(family, model))
+ dump_hsw_turbo_ratio_limits();
+
+ if (has_ivt_turbo_ratio_limit(family, model))
+ dump_ivt_turbo_ratio_limits();
+
+ if (has_nhm_turbo_ratio_limit(family, model))
+ dump_nhm_turbo_ratio_limits();
+
+ dump_nhm_cst_cfg();
+}
+
+
/*
* print_epb()
* Decode the ENERGY_PERF_BIAS MSR
@@ -2238,7 +2310,7 @@ guess:
return 0;
}
-void check_cpuid()
+void process_cpuid()
{
unsigned int eax, ebx, ecx, edx, max_level;
unsigned int fms, family, model, stepping;
@@ -2314,15 +2386,15 @@ void check_cpuid()
do_slm_cstates = is_slm(family, model);
bclk = discover_bclk(family, model);
- do_nhm_turbo_ratio_limit = do_nhm_platform_info && has_nhm_turbo_ratio_limit(family, model);
- do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model);
rapl_probe(family, model);
perf_limit_reasons_probe(family, model);
+ if (debug)
+ dump_cstate_pstate_config_info();
+
return;
}
-
void help()
{
fprintf(stderr,
@@ -2560,14 +2632,11 @@ void turbostat_init()
{
check_dev_msr();
check_permissions();
- check_cpuid();
+ process_cpuid();
setup_all_buffers();
if (debug)
- dump_system_config_info();
-
- if (debug)
for_all_cpus(print_epb, ODD_COUNTERS);
if (debug)
@@ -2644,7 +2713,7 @@ int get_and_dump_counters(void)
}
void print_version() {
- fprintf(stderr, "turbostat version 4.1 10-Feb, 2015"
+ fprintf(stderr, "turbostat version 4.2 23 Mar, 2015"
" - Len Brown <lenb@kernel.org>\n");
}

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