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tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2

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and up to 18 cores of turbo ratio limit
when using the turbostat --debug option.

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown 2015-03-23 20:29:09 -04:00
parent 12bb43c615
commit fcd17211bd
1 changed files with 105 additions and 36 deletions
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141
tools/power/x86/turbostat/turbostat.c
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@ -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)
@ -1625,11 +1660,48 @@ 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()
@ -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,
@ -2560,13 +2632,10 @@ 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);
@ -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");
}