kernel/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/therm.h

   1 #ifndef __NVBIOS_THERM_H__
   2 #define __NVBIOS_THERM_H__
   3 struct nvbios_therm_threshold {
   4         u8 temp;
   5         u8 hysteresis;
   6 };
   7
   8 struct nvbios_therm_sensor {
   9         /* diode */
  10         s16 slope_mult;
  11         s16 slope_div;
  12         s16 offset_num;
  13         s16 offset_den;
  14         s8 offset_constant;
  15
  16         /* thresholds */
  17         struct nvbios_therm_threshold thrs_fan_boost;
  18         struct nvbios_therm_threshold thrs_down_clock;
  19         struct nvbios_therm_threshold thrs_critical;
  20         struct nvbios_therm_threshold thrs_shutdown;
  21 };
  22
  23 enum nvbios_therm_fan_type {
  24         NVBIOS_THERM_FAN_UNK = 0,
  25         NVBIOS_THERM_FAN_TOGGLE = 1,
  26         NVBIOS_THERM_FAN_PWM = 2,
  27 };
  28
  29 /* no vbios have more than 6 */
  30 #define NVKM_TEMP_FAN_TRIP_MAX 10
  31 struct nvbios_therm_trip_point {
  32         int fan_duty;
  33         int temp;
  34         int hysteresis;
  35 };
  36
  37 enum nvbios_therm_fan_mode {
  38         NVBIOS_THERM_FAN_TRIP = 0,
  39         NVBIOS_THERM_FAN_LINEAR = 1,
  40         NVBIOS_THERM_FAN_OTHER = 2,
  41 };
  42
  43 struct nvbios_therm_fan {
  44         enum nvbios_therm_fan_type type;
  45
  46         u32 pwm_freq;
  47
  48         u8 min_duty;
  49         u8 max_duty;
  50
  51         u16 bump_period;
  52         u16 slow_down_period;
  53
  54         enum nvbios_therm_fan_mode fan_mode;
  55         struct nvbios_therm_trip_point trip[NVKM_TEMP_FAN_TRIP_MAX];
  56         u8 nr_fan_trip;
  57         u8 linear_min_temp;
  58         u8 linear_max_temp;
  59 };
  60
  61 enum nvbios_therm_domain {
  62         NVBIOS_THERM_DOMAIN_CORE,
  63         NVBIOS_THERM_DOMAIN_AMBIENT,
  64 };
  65
  66 int
  67 nvbios_therm_sensor_parse(struct nvkm_bios *, enum nvbios_therm_domain,
  68                           struct nvbios_therm_sensor *);
  69
  70 int
  71 nvbios_therm_fan_parse(struct nvkm_bios *, struct nvbios_therm_fan *);
  72 #endif