diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 141 |
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"); } |