diff options
Diffstat (limited to 'src/include/acpi')
| -rw-r--r-- | src/include/acpi/acpigen_dptf.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/include/acpi/acpigen_dptf.h b/src/include/acpi/acpigen_dptf.h index 3452f79578..474f72cd71 100644 --- a/src/include/acpi/acpigen_dptf.h +++ b/src/include/acpi/acpigen_dptf.h @@ -103,6 +103,26 @@ struct dptf_fan_perf { uint16_t power; }; +/* Running Average Power Limits (RAPL) */ +struct dptf_power_limit_config { + /* Minimum level of power limit, in mW */ + uint32_t min_power; + /* Maximum level of power limit, in mW */ + uint32_t max_power; + /* Minimum time window running average is over, in seconds */ + uint32_t time_window_min; + /* Maximum time window running average is over, in seconds */ + uint32_t time_window_max; + /* Granularity of the power limit setting (between min and max), in mW */ + uint16_t granularity; +}; + +/* Only PL1 and PL2 are controllable via DPTF */ +struct dptf_power_limits { + struct dptf_power_limit_config pl1; + struct dptf_power_limit_config pl2; +}; + /* * This function provides tables of temperature and corresponding fan or percent. When the * temperature thresholds are met (_AC0 - _AC9), the fan is driven to corresponding percentage @@ -142,6 +162,13 @@ void dptf_write_charger_perf(const struct dptf_charger_perf *perf, int max_count */ void dptf_write_fan_perf(const struct dptf_fan_perf *perf, int max_count); +/* + * This function writes out a PPCC table, which indicates power ranges that different Intel + * Running Average Power Limits (RAPLs) can take, as well as the time period they average over + * and the minimum adjustment amount. + */ +void dptf_write_power_limits(const struct dptf_power_limits *limits); + /* Helper method to open the scope for a given participant. */ void dptf_write_scope(enum dptf_participant participant); |