1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __NVKM_THERM_H__
3 #define __NVKM_THERM_H__
4 #include <core/subdev.h>
5 
6 #include <subdev/bios.h>
7 #include <subdev/bios/therm.h>
8 #include <subdev/timer.h>
9 
10 enum nvkm_therm_thrs_direction {
11 	NVKM_THERM_THRS_FALLING = 0,
12 	NVKM_THERM_THRS_RISING = 1
13 };
14 
15 enum nvkm_therm_thrs_state {
16 	NVKM_THERM_THRS_LOWER = 0,
17 	NVKM_THERM_THRS_HIGHER = 1
18 };
19 
20 enum nvkm_therm_thrs {
21 	NVKM_THERM_THRS_FANBOOST = 0,
22 	NVKM_THERM_THRS_DOWNCLOCK = 1,
23 	NVKM_THERM_THRS_CRITICAL = 2,
24 	NVKM_THERM_THRS_SHUTDOWN = 3,
25 	NVKM_THERM_THRS_NR
26 };
27 
28 enum nvkm_therm_fan_mode {
29 	NVKM_THERM_CTRL_NONE = 0,
30 	NVKM_THERM_CTRL_MANUAL = 1,
31 	NVKM_THERM_CTRL_AUTO = 2,
32 };
33 
34 enum nvkm_therm_attr_type {
35 	NVKM_THERM_ATTR_FAN_MIN_DUTY = 0,
36 	NVKM_THERM_ATTR_FAN_MAX_DUTY = 1,
37 	NVKM_THERM_ATTR_FAN_MODE = 2,
38 
39 	NVKM_THERM_ATTR_THRS_FAN_BOOST = 10,
40 	NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST = 11,
41 	NVKM_THERM_ATTR_THRS_DOWN_CLK = 12,
42 	NVKM_THERM_ATTR_THRS_DOWN_CLK_HYST = 13,
43 	NVKM_THERM_ATTR_THRS_CRITICAL = 14,
44 	NVKM_THERM_ATTR_THRS_CRITICAL_HYST = 15,
45 	NVKM_THERM_ATTR_THRS_SHUTDOWN = 16,
46 	NVKM_THERM_ATTR_THRS_SHUTDOWN_HYST = 17,
47 };
48 
49 struct nvkm_therm {
50 	const struct nvkm_therm_func *func;
51 	struct nvkm_subdev subdev;
52 
53 	/* automatic thermal management */
54 	struct nvkm_alarm alarm;
55 	spinlock_t lock;
56 	struct nvbios_therm_trip_point *last_trip;
57 	int mode;
58 	int cstate;
59 	int suspend;
60 
61 	/* bios */
62 	struct nvbios_therm_sensor bios_sensor;
63 
64 	/* fan priv */
65 	struct nvkm_fan *fan;
66 
67 	/* alarms priv */
68 	struct {
69 		spinlock_t alarm_program_lock;
70 		struct nvkm_alarm therm_poll_alarm;
71 		enum nvkm_therm_thrs_state alarm_state[NVKM_THERM_THRS_NR];
72 	} sensor;
73 
74 	/* what should be done if the card overheats */
75 	struct {
76 		void (*downclock)(struct nvkm_therm *, bool active);
77 		void (*pause)(struct nvkm_therm *, bool active);
78 	} emergency;
79 
80 	/* ic */
81 	struct i2c_client *ic;
82 
83 	int (*fan_get)(struct nvkm_therm *);
84 	int (*fan_set)(struct nvkm_therm *, int);
85 
86 	int (*attr_get)(struct nvkm_therm *, enum nvkm_therm_attr_type);
87 	int (*attr_set)(struct nvkm_therm *, enum nvkm_therm_attr_type, int);
88 };
89 
90 int nvkm_therm_temp_get(struct nvkm_therm *);
91 int nvkm_therm_fan_sense(struct nvkm_therm *);
92 int nvkm_therm_cstate(struct nvkm_therm *, int, int);
93 
94 int nv40_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
95 int nv50_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
96 int g84_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
97 int gt215_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
98 int gf119_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
99 int gm107_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
100 int gm200_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
101 int gp100_therm_new(struct nvkm_device *, int, struct nvkm_therm **);
102 #endif
103