diff options
| author | Shinji Nomoto <fj5851bi@fujitsu.com> | 2025-05-22 15:10:59 +0900 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2025-08-15 10:49:14 -0600 |
| commit | 357d1fc38aad2cf4ea6626138cbf68299d20170c (patch) | |
| tree | 7d76d4ea9ad13db92ff392ffb2e99161d9a48b13 /tools/power/cpupower/utils/helpers/helpers.h | |
| parent | b3eaf14f4c63fd6abc7b68c6d7a07c5680a6d8e5 (diff) | |
cpupower: Allow control of boost feature on non-x86 based systems with boost support.
The cpufreq subsystem has a generic sysfs interface for controlling boost
(/sys/devices/system/cpu/cpufreq/boost).
The sysfs interface can be used to enable boost control from the cpupower
command on non-x86 platforms as well. So, allow boost controlling
on non-x86 system if boost sysfs file exists.
The set subcommand enables/disables the boost feature using the following
syntax:
cpupower set --boost 1
cpupower set --boost 0
The --boost option is an alias for --turbo-boost. We provided the neutral
option name because the name "turbo boost" is specific to Intel technology.
The frequency-info subcommand displays the enabled/disabled state of
the boost feature as follows:
boost state support:
Active: yes (or no)
Link: https://lore.kernel.org/r/20250522061122.2149188-3-fj5851bi@fujitsu.com
Signed-off-by: Shinji Nomoto <fj5851bi@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/power/cpupower/utils/helpers/helpers.h')
| -rw-r--r-- | tools/power/cpupower/utils/helpers/helpers.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h index 95749b8ee475..82ea62bdf5a2 100644 --- a/tools/power/cpupower/utils/helpers/helpers.h +++ b/tools/power/cpupower/utils/helpers/helpers.h @@ -103,6 +103,9 @@ extern struct cpupower_cpu_info cpupower_cpu_info; /* cpuid and cpuinfo helpers **************************/ +int cpufreq_has_generic_boost_support(bool *active); +int cpupower_set_turbo_boost(int turbo_boost); + /* X86 ONLY ****************************************/ #if defined(__i386__) || defined(__x86_64__) @@ -118,7 +121,6 @@ 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 ****************************/ @@ -139,8 +141,8 @@ extern int decode_pstates(unsigned int cpu, int boost_states, /* AMD HW pstate decoding **************************/ -extern int cpufreq_has_boost_support(unsigned int cpu, int *support, - int *active, int * states); +int cpufreq_has_x86_boost_support(unsigned int cpu, int *support, + int *active, int *states); /* AMD P-State stuff **************************/ bool cpupower_amd_pstate_enabled(void); @@ -181,13 +183,11 @@ 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 ****************************/ -static inline int cpufreq_has_boost_support(unsigned int cpu, int *support, - int *active, int * states) +static inline int cpufreq_has_x86_boost_support(unsigned int cpu, int *support, + int *active, int *states) { return -1; } static inline bool cpupower_amd_pstate_enabled(void) |