| Message ID | 20230612113615.205353-7-wyes.karny@amd.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | cpupower: Add various feature control support for amd_pstate | expand |
On Mon, Jun 12, 2023 at 07:36:15PM +0800, Karny, Wyes wrote: > If boost sysfs (/sys/devices/system/cpu/cpufreq/boost) file is present > turbo-boost is feature is supported in the hardware. By default this > feature should be enabled. But to disable/enable it write to the sysfs > file. Use the same to control this feature via cpupower. > > To enable: > cpupower set --turbo-boost 1 > > To disable: > cpupower set --turbo-boost 0 > > Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com> > Signed-off-by: Wyes Karny <wyes.karny@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> > --- > tools/power/cpupower/utils/cpupower-set.c | 22 +++++++++++++++++++- > tools/power/cpupower/utils/helpers/helpers.h | 3 +++ > tools/power/cpupower/utils/helpers/misc.c | 18 ++++++++++++++++ > 3 files changed, 42 insertions(+), 1 deletion(-) > > diff --git a/tools/power/cpupower/utils/cpupower-set.c b/tools/power/cpupower/utils/cpupower-set.c > index c2ba69b7ea54..0677b58374ab 100644 > --- a/tools/power/cpupower/utils/cpupower-set.c > +++ b/tools/power/cpupower/utils/cpupower-set.c > @@ -20,6 +20,7 @@ static struct option set_opts[] = { > {"perf-bias", required_argument, NULL, 'b'}, > {"epp", required_argument, NULL, 'e'}, > {"amd-pstate-mode", required_argument, NULL, 'm'}, > + {"turbo-boost", required_argument, NULL, 't'}, > { }, > }; > > @@ -41,10 +42,11 @@ int cmd_set(int argc, char **argv) > int perf_bias:1; > int epp:1; > int mode:1; > + int turbo_boost:1; > }; > int params; > } params; > - int perf_bias = 0; > + int perf_bias = 0, turbo_boost = 1; > int ret = 0; > char epp[30], mode[20]; > > @@ -94,6 +96,18 @@ int cmd_set(int argc, char **argv) > } > params.mode = 1; > break; > + case 't': > + if (params.turbo_boost) > + print_wrong_arg_exit(); > + turbo_boost = atoi(optarg); > + if (turbo_boost < 0 || turbo_boost > 1) { > + printf("--turbo-boost param out of range [0-1]\n"); > + print_wrong_arg_exit(); > + } > + params.turbo_boost = 1; > + break; > + > + > default: > print_wrong_arg_exit(); > } > @@ -108,6 +122,12 @@ int cmd_set(int argc, char **argv) > fprintf(stderr, "Error setting mode\n"); > } > > + if (params.turbo_boost) { > + ret = cpupower_set_turbo_boost(turbo_boost); > + if (ret) > + fprintf(stderr, "Error setting turbo-boost\n"); > + } > + > /* Default is: set all CPUs */ > if (bitmask_isallclear(cpus_chosen)) > bitmask_setall(cpus_chosen); > diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h > index d35596631eef..95749b8ee475 100644 > --- a/tools/power/cpupower/utils/helpers/helpers.h > +++ b/tools/power/cpupower/utils/helpers/helpers.h > @@ -118,6 +118,7 @@ extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu); > > extern int cpupower_set_epp(unsigned int cpu, char *epp); > extern int cpupower_set_amd_pstate_mode(char *mode); > +extern int cpupower_set_turbo_boost(int turbo_boost); > > /* Read/Write msr ****************************/ > > @@ -180,6 +181,8 @@ static inline int cpupower_set_epp(unsigned int cpu, char *epp) > { return -1; }; > static inline int cpupower_set_amd_pstate_mode(char *mode) > { return -1; }; > +static inline int cpupower_set_turbo_boost(int turbo_boost) > +{ return -1; }; > > /* Read/Write msr ****************************/ > > diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c > index 9df9af8a969e..fc822a0e6b7b 100644 > --- a/tools/power/cpupower/utils/helpers/misc.c > +++ b/tools/power/cpupower/utils/helpers/misc.c > @@ -124,6 +124,24 @@ int cpupower_set_amd_pstate_mode(char *mode) > return 0; > } > > +int cpupower_set_turbo_boost(int turbo_boost) > +{ > + char path[SYSFS_PATH_MAX]; > + char linebuf[2] = {}; > + > + snprintf(path, sizeof(path), PATH_TO_CPU "cpufreq/boost"); > + > + if (!is_valid_path(path)) > + return -1; > + > + snprintf(linebuf, sizeof(linebuf), "%d", turbo_boost); > + > + if (cpupower_write_sysfs(path, linebuf, 2) <= 0) > + return -1; > + > + return 0; > +} > + > bool cpupower_amd_pstate_enabled(void) > { > char *driver = cpufreq_get_driver(0); > -- > 2.34.1 >
diff --git a/tools/power/cpupower/utils/cpupower-set.c b/tools/power/cpupower/utils/cpupower-set.c index c2ba69b7ea54..0677b58374ab 100644 --- a/tools/power/cpupower/utils/cpupower-set.c +++ b/tools/power/cpupower/utils/cpupower-set.c @@ -20,6 +20,7 @@ static struct option set_opts[] = { {"perf-bias", required_argument, NULL, 'b'}, {"epp", required_argument, NULL, 'e'}, {"amd-pstate-mode", required_argument, NULL, 'm'}, + {"turbo-boost", required_argument, NULL, 't'}, { }, }; @@ -41,10 +42,11 @@ int cmd_set(int argc, char **argv) int perf_bias:1; int epp:1; int mode:1; + int turbo_boost:1; }; int params; } params; - int perf_bias = 0; + int perf_bias = 0, turbo_boost = 1; int ret = 0; char epp[30], mode[20]; @@ -94,6 +96,18 @@ int cmd_set(int argc, char **argv) } params.mode = 1; break; + case 't': + if (params.turbo_boost) + print_wrong_arg_exit(); + turbo_boost = atoi(optarg); + if (turbo_boost < 0 || turbo_boost > 1) { + printf("--turbo-boost param out of range [0-1]\n"); + print_wrong_arg_exit(); + } + params.turbo_boost = 1; + break; + + default: print_wrong_arg_exit(); } @@ -108,6 +122,12 @@ int cmd_set(int argc, char **argv) fprintf(stderr, "Error setting mode\n"); } + if (params.turbo_boost) { + ret = cpupower_set_turbo_boost(turbo_boost); + if (ret) + fprintf(stderr, "Error setting turbo-boost\n"); + } + /* Default is: set all CPUs */ if (bitmask_isallclear(cpus_chosen)) bitmask_setall(cpus_chosen); diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h index d35596631eef..95749b8ee475 100644 --- a/tools/power/cpupower/utils/helpers/helpers.h +++ b/tools/power/cpupower/utils/helpers/helpers.h @@ -118,6 +118,7 @@ extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu); extern int cpupower_set_epp(unsigned int cpu, char *epp); extern int cpupower_set_amd_pstate_mode(char *mode); +extern int cpupower_set_turbo_boost(int turbo_boost); /* Read/Write msr ****************************/ @@ -180,6 +181,8 @@ static inline int cpupower_set_epp(unsigned int cpu, char *epp) { return -1; }; static inline int cpupower_set_amd_pstate_mode(char *mode) { return -1; }; +static inline int cpupower_set_turbo_boost(int turbo_boost) +{ return -1; }; /* Read/Write msr ****************************/ diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c index 9df9af8a969e..fc822a0e6b7b 100644 --- a/tools/power/cpupower/utils/helpers/misc.c +++ b/tools/power/cpupower/utils/helpers/misc.c @@ -124,6 +124,24 @@ int cpupower_set_amd_pstate_mode(char *mode) return 0; } +int cpupower_set_turbo_boost(int turbo_boost) +{ + char path[SYSFS_PATH_MAX]; + char linebuf[2] = {}; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpufreq/boost"); + + if (!is_valid_path(path)) + return -1; + + snprintf(linebuf, sizeof(linebuf), "%d", turbo_boost); + + if (cpupower_write_sysfs(path, linebuf, 2) <= 0) + return -1; + + return 0; +} + bool cpupower_amd_pstate_enabled(void) { char *driver = cpufreq_get_driver(0);