subdev/bios/therm.h

0001 /* SPDX-License-Identifier: MIT */
0002 #ifndef __NVBIOS_THERM_H__
0003 #define __NVBIOS_THERM_H__
0004 struct nvbios_therm_threshold {
0005     u8 temp;
0006     u8 hysteresis;
0007 };
0008
0009 struct nvbios_therm_sensor {
0010     /* diode */
0011     s16 slope_mult;
0012     s16 slope_div;
0013     s16 offset_num;
0014     s16 offset_den;
0015     s8 offset_constant;
0016
0017     /* thresholds */
0018     struct nvbios_therm_threshold thrs_fan_boost;
0019     struct nvbios_therm_threshold thrs_down_clock;
0020     struct nvbios_therm_threshold thrs_critical;
0021     struct nvbios_therm_threshold thrs_shutdown;
0022 };
0023
0024 enum nvbios_therm_fan_type {
0025     NVBIOS_THERM_FAN_UNK = 0,
0026     NVBIOS_THERM_FAN_TOGGLE = 1,
0027     NVBIOS_THERM_FAN_PWM = 2,
0028 };
0029
0030 /* no vbios have more than 6 */
0031 #define NVKM_TEMP_FAN_TRIP_MAX 10
0032 struct nvbios_therm_trip_point {
0033     int fan_duty;
0034     int temp;
0035     int hysteresis;
0036 };
0037
0038 enum nvbios_therm_fan_mode {
0039     NVBIOS_THERM_FAN_TRIP = 0,
0040     NVBIOS_THERM_FAN_LINEAR = 1,
0041     NVBIOS_THERM_FAN_OTHER = 2,
0042 };
0043
0044 struct nvbios_therm_fan {
0045     enum nvbios_therm_fan_type type;
0046
0047     u32 pwm_freq;
0048
0049     u8 min_duty;
0050     u8 max_duty;
0051
0052     u16 bump_period;
0053     u16 slow_down_period;
0054
0055     enum nvbios_therm_fan_mode fan_mode;
0056     struct nvbios_therm_trip_point trip[NVKM_TEMP_FAN_TRIP_MAX];
0057     u8 nr_fan_trip;
0058     u8 linear_min_temp;
0059     u8 linear_max_temp;
0060 };
0061
0062 enum nvbios_therm_domain {
0063     NVBIOS_THERM_DOMAIN_CORE,
0064     NVBIOS_THERM_DOMAIN_AMBIENT,
0065 };
0066
0067 int
0068 nvbios_therm_sensor_parse(struct nvkm_bios *, enum nvbios_therm_domain,
0069               struct nvbios_therm_sensor *);
0070
0071 int
0072 nvbios_therm_fan_parse(struct nvkm_bios *, struct nvbios_therm_fan *);
0073 #endif