diff options
| -rw-r--r-- | tools/power/cpupower/utils/cpupower.c | 15 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/cpuid.c | 4 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/helpers.h | 5 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/misc.c | 2 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c | 4 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/idle_monitor/mperf_monitor.c | 3 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/idle_monitor/nhm_idle.c | 8 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/idle_monitor/snb_idle.c | 4 |
8 files changed, 28 insertions, 17 deletions
diff --git a/tools/power/cpupower/utils/cpupower.c b/tools/power/cpupower/utils/cpupower.c index 9ea914378985..2dccf4998599 100644 --- a/tools/power/cpupower/utils/cpupower.c +++ b/tools/power/cpupower/utils/cpupower.c @@ -12,6 +12,7 @@ #include <string.h> #include <unistd.h> #include <errno.h> +#include <sched.h> #include <sys/types.h> #include <sys/stat.h> #include <sys/utsname.h> @@ -31,6 +32,7 @@ static int cmd_help(int argc, const char **argv); */ struct cpupower_cpu_info cpupower_cpu_info; int run_as_root; +int base_cpu; /* Affected cpus chosen by -c/--cpu param */ struct bitmask *cpus_chosen; @@ -174,6 +176,7 @@ int main(int argc, const char *argv[]) unsigned int i, ret; struct stat statbuf; struct utsname uts; + char pathname[32]; cpus_chosen = bitmask_alloc(sysconf(_SC_NPROCESSORS_CONF)); @@ -198,17 +201,23 @@ int main(int argc, const char *argv[]) argv[0] = cmd = "help"; } - get_cpu_info(0, &cpupower_cpu_info); + base_cpu = sched_getcpu(); + if (base_cpu < 0) { + fprintf(stderr, _("No valid cpus found.\n")); + return EXIT_FAILURE; + } + + get_cpu_info(&cpupower_cpu_info); run_as_root = !geteuid(); if (run_as_root) { ret = uname(&uts); + sprintf(pathname, "/dev/cpu/%d/msr", base_cpu); if (!ret && !strcmp(uts.machine, "x86_64") && - stat("/dev/cpu/0/msr", &statbuf) != 0) { + stat(pathname, &statbuf) != 0) { if (system("modprobe msr") == -1) fprintf(stderr, _("MSR access not available.\n")); } } - for (i = 0; i < ARRAY_SIZE(commands); i++) { struct cmd_struct *p = commands + i; diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c index 39c2c7d067bb..32d37c9be791 100644 --- a/tools/power/cpupower/utils/helpers/cpuid.c +++ b/tools/power/cpupower/utils/helpers/cpuid.c @@ -42,7 +42,7 @@ cpuid_func(edx); * * TBD: Should there be a cpuid alternative for this if /proc is not mounted? */ -int get_cpu_info(unsigned int cpu, struct cpupower_cpu_info *cpu_info) +int get_cpu_info(struct cpupower_cpu_info *cpu_info) { FILE *fp; char value[64]; @@ -70,7 +70,7 @@ int get_cpu_info(unsigned int cpu, struct cpupower_cpu_info *cpu_info) if (!strncmp(value, "processor\t: ", 12)) sscanf(value, "processor\t: %u", &proc); - if (proc != cpu) + if (proc != (unsigned int)base_cpu) continue; /* Get CPU vendor */ diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h index 799a18be60aa..41da392be448 100644 --- a/tools/power/cpupower/utils/helpers/helpers.h +++ b/tools/power/cpupower/utils/helpers/helpers.h @@ -34,6 +34,7 @@ /* Internationalization ****************************/ extern int run_as_root; +extern int base_cpu; extern struct bitmask *cpus_chosen; /* Global verbose (-d) stuff *********************************/ @@ -87,11 +88,11 @@ struct cpupower_cpu_info { * * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo * - * Returns 0 on success or a negativ error code + * Returns 0 on success or a negative error code * Only used on x86, below global's struct values are zero/unknown on * other archs */ -extern int get_cpu_info(unsigned int cpu, struct cpupower_cpu_info *cpu_info); +extern int get_cpu_info(struct cpupower_cpu_info *cpu_info); extern struct cpupower_cpu_info cpupower_cpu_info; /* cpuid and cpuinfo helpers **************************/ diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c index 601d719d4e60..a5e7ddf19dbd 100644 --- a/tools/power/cpupower/utils/helpers/misc.c +++ b/tools/power/cpupower/utils/helpers/misc.c @@ -13,7 +13,7 @@ int cpufreq_has_boost_support(unsigned int cpu, int *support, int *active, *support = *active = *states = 0; - ret = get_cpu_info(0, &cpu_info); + ret = get_cpu_info(&cpu_info); if (ret) return ret; diff --git a/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c b/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c index ebeaba6571a3..f794d6bbb7e9 100644 --- a/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c +++ b/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c @@ -123,7 +123,7 @@ static int hsw_ext_start(void) previous_count[num][cpu] = val; } } - hsw_ext_get_count(TSC, &tsc_at_measure_start, 0); + hsw_ext_get_count(TSC, &tsc_at_measure_start, base_cpu); return 0; } @@ -132,7 +132,7 @@ static int hsw_ext_stop(void) unsigned long long val; int num, cpu; - hsw_ext_get_count(TSC, &tsc_at_measure_end, 0); + hsw_ext_get_count(TSC, &tsc_at_measure_end, base_cpu); for (num = 0; num < HSW_EXT_CSTATE_COUNT; num++) { for (cpu = 0; cpu < cpu_count; cpu++) { diff --git a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c index c83f1606970b..d7c2a6d13dea 100644 --- a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c +++ b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c @@ -80,7 +80,8 @@ static int *is_valid; static int mperf_get_tsc(unsigned long long *tsc) { int ret; - ret = read_msr(0, MSR_TSC, tsc); + + ret = read_msr(base_cpu, MSR_TSC, tsc); if (ret) dprint("Reading TSC MSR failed, returning %llu\n", *tsc); return ret; diff --git a/tools/power/cpupower/utils/idle_monitor/nhm_idle.c b/tools/power/cpupower/utils/idle_monitor/nhm_idle.c index d2a91dd0d563..abf8cb5f7349 100644 --- a/tools/power/cpupower/utils/idle_monitor/nhm_idle.c +++ b/tools/power/cpupower/utils/idle_monitor/nhm_idle.c @@ -129,7 +129,7 @@ static int nhm_start(void) int num, cpu; unsigned long long dbg, val; - nhm_get_count(TSC, &tsc_at_measure_start, 0); + nhm_get_count(TSC, &tsc_at_measure_start, base_cpu); for (num = 0; num < NHM_CSTATE_COUNT; num++) { for (cpu = 0; cpu < cpu_count; cpu++) { @@ -137,7 +137,7 @@ static int nhm_start(void) previous_count[num][cpu] = val; } } - nhm_get_count(TSC, &dbg, 0); + nhm_get_count(TSC, &dbg, base_cpu); dprint("TSC diff: %llu\n", dbg - tsc_at_measure_start); return 0; } @@ -148,7 +148,7 @@ static int nhm_stop(void) unsigned long long dbg; int num, cpu; - nhm_get_count(TSC, &tsc_at_measure_end, 0); + nhm_get_count(TSC, &tsc_at_measure_end, base_cpu); for (num = 0; num < NHM_CSTATE_COUNT; num++) { for (cpu = 0; cpu < cpu_count; cpu++) { @@ -156,7 +156,7 @@ static int nhm_stop(void) current_count[num][cpu] = val; } } - nhm_get_count(TSC, &dbg, 0); + nhm_get_count(TSC, &dbg, base_cpu); dprint("TSC diff: %llu\n", dbg - tsc_at_measure_end); return 0; diff --git a/tools/power/cpupower/utils/idle_monitor/snb_idle.c b/tools/power/cpupower/utils/idle_monitor/snb_idle.c index efc8a69c9aba..a2b45219648d 100644 --- a/tools/power/cpupower/utils/idle_monitor/snb_idle.c +++ b/tools/power/cpupower/utils/idle_monitor/snb_idle.c @@ -120,7 +120,7 @@ static int snb_start(void) previous_count[num][cpu] = val; } } - snb_get_count(TSC, &tsc_at_measure_start, 0); + snb_get_count(TSC, &tsc_at_measure_start, base_cpu); return 0; } @@ -129,7 +129,7 @@ static int snb_stop(void) unsigned long long val; int num, cpu; - snb_get_count(TSC, &tsc_at_measure_end, 0); + snb_get_count(TSC, &tsc_at_measure_end, base_cpu); for (num = 0; num < SNB_CSTATE_COUNT; num++) { for (cpu = 0; cpu < cpu_count; cpu++) { |