1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __NVBIOS_THERM_H__
3 #define __NVBIOS_THERM_H__
4 struct nvbios_therm_threshold {
5 	u8 temp;
6 	u8 hysteresis;
7 };
8 
9 struct nvbios_therm_sensor {
10 	/* diode */
11 	s16 slope_mult;
12 	s16 slope_div;
13 	s16 offset_num;
14 	s16 offset_den;
15 	s8 offset_constant;
16 
17 	/* thresholds */
18 	struct nvbios_therm_threshold thrs_fan_boost;
19 	struct nvbios_therm_threshold thrs_down_clock;
20 	struct nvbios_therm_threshold thrs_critical;
21 	struct nvbios_therm_threshold thrs_shutdown;
22 };
23 
24 enum nvbios_therm_fan_type {
25 	NVBIOS_THERM_FAN_UNK = 0,
26 	NVBIOS_THERM_FAN_TOGGLE = 1,
27 	NVBIOS_THERM_FAN_PWM = 2,
28 };
29 
30 /* no vbios have more than 6 */
31 #define NVKM_TEMP_FAN_TRIP_MAX 10
32 struct nvbios_therm_trip_point {
33 	int fan_duty;
34 	int temp;
35 	int hysteresis;
36 };
37 
38 enum nvbios_therm_fan_mode {
39 	NVBIOS_THERM_FAN_TRIP = 0,
40 	NVBIOS_THERM_FAN_LINEAR = 1,
41 	NVBIOS_THERM_FAN_OTHER = 2,
42 };
43 
44 struct nvbios_therm_fan {
45 	enum nvbios_therm_fan_type type;
46 
47 	u32 pwm_freq;
48 
49 	u8 min_duty;
50 	u8 max_duty;
51 
52 	u16 bump_period;
53 	u16 slow_down_period;
54 
55 	enum nvbios_therm_fan_mode fan_mode;
56 	struct nvbios_therm_trip_point trip[NVKM_TEMP_FAN_TRIP_MAX];
57 	u8 nr_fan_trip;
58 	u8 linear_min_temp;
59 	u8 linear_max_temp;
60 };
61 
62 enum nvbios_therm_domain {
63 	NVBIOS_THERM_DOMAIN_CORE,
64 	NVBIOS_THERM_DOMAIN_AMBIENT,
65 };
66 
67 int
68 nvbios_therm_sensor_parse(struct nvkm_bios *, enum nvbios_therm_domain,
69 			  struct nvbios_therm_sensor *);
70 
71 int
72 nvbios_therm_fan_parse(struct nvkm_bios *, struct nvbios_therm_fan *);
73 #endif
74