diff options
Diffstat (limited to 'tools/power/cpupower/utils/idle_monitor/nhm_idle.c')
| -rw-r--r-- | tools/power/cpupower/utils/idle_monitor/nhm_idle.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/tools/power/cpupower/utils/idle_monitor/nhm_idle.c b/tools/power/cpupower/utils/idle_monitor/nhm_idle.c index 6424b6dd3fa5..d2a91dd0d563 100644 --- a/tools/power/cpupower/utils/idle_monitor/nhm_idle.c +++ b/tools/power/cpupower/utils/idle_monitor/nhm_idle.c @@ -69,11 +69,12 @@ static unsigned long long *current_count[NHM_CSTATE_COUNT]; /* valid flag for all CPUs. If a MSR read failed it will be zero */ static int *is_valid; -static int nhm_get_count(enum intel_nhm_id id, unsigned long long *val, unsigned int cpu) +static int nhm_get_count(enum intel_nhm_id id, unsigned long long *val, + unsigned int cpu) { int msr; - switch(id) { + switch (id) { case C3: msr = MSR_CORE_C3_RESIDENCY; break; @@ -106,12 +107,13 @@ static int nhm_get_count_percent(unsigned int id, double *percent, if (!is_valid[cpu]) return -1; - *percent = (100.0 * (current_count[id][cpu] - previous_count[id][cpu])) / + *percent = (100.0 * + (current_count[id][cpu] - previous_count[id][cpu])) / (tsc_at_measure_end - tsc_at_measure_start); - dprint("%s: previous: %llu - current: %llu - (%u)\n", nhm_cstates[id].name, - previous_count[id][cpu], current_count[id][cpu], - cpu); + dprint("%s: previous: %llu - current: %llu - (%u)\n", + nhm_cstates[id].name, previous_count[id][cpu], + current_count[id][cpu], cpu); dprint("%s: tsc_diff: %llu - count_diff: %llu - percent: %2.f (%u)\n", nhm_cstates[id].name, @@ -162,7 +164,8 @@ static int nhm_stop(void) struct cpuidle_monitor intel_nhm_monitor; -struct cpuidle_monitor* intel_nhm_register(void) { +struct cpuidle_monitor *intel_nhm_register(void) +{ int num; if (cpupower_cpu_info.vendor != X86_VENDOR_INTEL) @@ -175,19 +178,20 @@ struct cpuidle_monitor* intel_nhm_register(void) { return NULL; /* Free this at program termination */ - is_valid = calloc(cpu_count, sizeof (int)); + is_valid = calloc(cpu_count, sizeof(int)); for (num = 0; num < NHM_CSTATE_COUNT; num++) { - previous_count[num] = calloc (cpu_count, - sizeof(unsigned long long)); - current_count[num] = calloc (cpu_count, - sizeof(unsigned long long)); + previous_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + current_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); } intel_nhm_monitor.name_len = strlen(intel_nhm_monitor.name); return &intel_nhm_monitor; } -void intel_nhm_unregister(void) { +void intel_nhm_unregister(void) +{ int num; for (num = 0; num < NHM_CSTATE_COUNT; num++) { |