1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*
* Copyright 2012 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs
* Martin Peres
*/
#include "priv.h"
struct nv84_therm_priv {
struct nouveau_therm_priv base;
};
int
nv84_temp_get(struct nouveau_therm *therm)
{
return nv_rd32(therm, 0x20400);
}
static void
nv84_therm_program_alarms(struct nouveau_therm *therm)
{
struct nouveau_therm_priv *priv = (void *)therm;
struct nvbios_therm_sensor *sensor = &priv->bios_sensor;
unsigned long flags;
spin_lock_irqsave(&priv->sensor.alarm_program_lock, flags);
/* enable RISING and FALLING IRQs for shutdown, THRS 0, 1, 2 and 4 */
nv_wr32(therm, 0x20000, 0x000003ff);
/* shutdown: The computer should be shutdown when reached */
nv_wr32(therm, 0x20484, sensor->thrs_shutdown.hysteresis);
nv_wr32(therm, 0x20480, sensor->thrs_shutdown.temp);
/* THRS_1 : fan boost*/
nv_wr32(therm, 0x204c4, sensor->thrs_fan_boost.temp);
/* THRS_2 : critical */
nv_wr32(therm, 0x204c0, sensor->thrs_critical.temp);
/* THRS_4 : down clock */
nv_wr32(therm, 0x20414, sensor->thrs_down_clock.temp);
spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags);
nv_debug(therm,
"Programmed thresholds [ %d(%d), %d(%d), %d(%d), %d(%d) ]\n",
sensor->thrs_fan_boost.temp, sensor->thrs_fan_boost.hysteresis,
sensor->thrs_down_clock.temp,
sensor->thrs_down_clock.hysteresis,
sensor->thrs_critical.temp, sensor->thrs_critical.hysteresis,
sensor->thrs_shutdown.temp, sensor->thrs_shutdown.hysteresis);
}
/* must be called with alarm_program_lock taken ! */
static void
nv84_therm_threshold_hyst_emulation(struct nouveau_therm *therm,
uint32_t thrs_reg, u8 status_bit,
const struct nvbios_therm_threshold *thrs,
enum nouveau_therm_thrs thrs_name)
{
enum nouveau_therm_thrs_direction direction;
enum nouveau_therm_thrs_state prev_state, new_state;
int temp, cur;
prev_state = nouveau_therm_sensor_get_threshold_state(therm, thrs_name);
temp = nv_rd32(therm, thrs_reg);
/* program the next threshold */
if (temp == thrs->temp) {
nv_wr32(therm, thrs_reg, thrs->temp - thrs->hysteresis);
new_state = NOUVEAU_THERM_THRS_HIGHER;
} else {
nv_wr32(therm, thrs_reg, thrs->temp);
new_state = NOUVEAU_THERM_THRS_LOWER;
}
/* fix the state (in case someone reprogrammed the alarms) */
cur = therm->temp_get(therm);
if (new_state == NOUVEAU_THERM_THRS_LOWER && cur > thrs->temp)
new_state = NOUVEAU_THERM_THRS_HIGHER;
else if (new_state == NOUVEAU_THERM_THRS_HIGHER &&
cur < thrs->temp - thrs->hysteresis)
new_state = NOUVEAU_THERM_THRS_LOWER;
nouveau_therm_sensor_set_threshold_state(therm, thrs_name, new_state);
/* find the direction */
if (prev_state < new_state)
direction = NOUVEAU_THERM_THRS_RISING;
else if (prev_state > new_state)
direction = NOUVEAU_THERM_THRS_FALLING;
else
return;
/* advertise a change in direction */
nouveau_therm_sensor_event(therm, thrs_name, direction);
}
static void
nv84_therm_intr(struct nouveau_subdev *subdev)
{
struct nouveau_therm *therm = nouveau_therm(subdev);
struct nouveau_therm_priv *priv = (void *)therm;
struct nvbios_therm_sensor *sensor = &priv->bios_sensor;
unsigned long flags;
uint32_t intr;
spin_lock_irqsave(&priv->sensor.alarm_program_lock, flags);
intr = nv_rd32(therm, 0x20100);
/* THRS_4: downclock */
if (intr & 0x002) {
nv84_therm_threshold_hyst_emulation(therm, 0x20414, 24,
&sensor->thrs_down_clock,
NOUVEAU_THERM_THRS_DOWNCLOCK);
intr &= ~0x002;
}
/* shutdown */
if (intr & 0x004) {
nv84_therm_threshold_hyst_emulation(therm, 0x20480, 20,
&sensor->thrs_shutdown,
NOUVEAU_THERM_THRS_SHUTDOWN);
intr &= ~0x004;
}
/* THRS_1 : fan boost */
if (intr & 0x008) {
nv84_therm_threshold_hyst_emulation(therm, 0x204c4, 21,
&sensor->thrs_fan_boost,
NOUVEAU_THERM_THRS_FANBOOST);
intr &= ~0x008;
}
/* THRS_2 : critical */
if (intr & 0x010) {
nv84_therm_threshold_hyst_emulation(therm, 0x204c0, 22,
&sensor->thrs_critical,
NOUVEAU_THERM_THRS_CRITICAL);
intr &= ~0x010;
}
if (intr)
nv_error(therm, "unhandled intr 0x%08x\n", intr);
/* ACK everything */
nv_wr32(therm, 0x20100, 0xffffffff);
nv_wr32(therm, 0x1100, 0x10000); /* PBUS */
spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags);
}
static int
nv84_therm_ctor(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 size,
struct nouveau_object **pobject)
{
struct nv84_therm_priv *priv;
int ret;
ret = nouveau_therm_create(parent, engine, oclass, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
priv->base.base.pwm_ctrl = nv50_fan_pwm_ctrl;
priv->base.base.pwm_get = nv50_fan_pwm_get;
priv->base.base.pwm_set = nv50_fan_pwm_set;
priv->base.base.pwm_clock = nv50_fan_pwm_clock;
priv->base.base.temp_get = nv84_temp_get;
priv->base.sensor.program_alarms = nv84_therm_program_alarms;
nv_subdev(priv)->intr = nv84_therm_intr;
/* init the thresholds */
nouveau_therm_sensor_set_threshold_state(&priv->base.base,
NOUVEAU_THERM_THRS_SHUTDOWN,
NOUVEAU_THERM_THRS_LOWER);
nouveau_therm_sensor_set_threshold_state(&priv->base.base,
NOUVEAU_THERM_THRS_FANBOOST,
NOUVEAU_THERM_THRS_LOWER);
nouveau_therm_sensor_set_threshold_state(&priv->base.base,
NOUVEAU_THERM_THRS_CRITICAL,
NOUVEAU_THERM_THRS_LOWER);
nouveau_therm_sensor_set_threshold_state(&priv->base.base,
NOUVEAU_THERM_THRS_DOWNCLOCK,
NOUVEAU_THERM_THRS_LOWER);
return nouveau_therm_preinit(&priv->base.base);
}
struct nouveau_oclass
nv84_therm_oclass = {
.handle = NV_SUBDEV(THERM, 0x84),
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = nv84_therm_ctor,
.dtor = _nouveau_therm_dtor,
.init = _nouveau_therm_init,
.fini = _nouveau_therm_fini,
},
};
|
