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
|
/*
* Copyright 2013 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
*/
#include "priv.h"
#include <core/firmware.h>
#include <subdev/timer.h>
bool
nvkm_pmu_fan_controlled(struct nvkm_device *device)
{
struct nvkm_pmu *pmu = device->pmu;
/* Internal PMU FW does not currently control fans in any way,
* allow SW control of fans instead.
*/
if (pmu && pmu->func->code.size)
return false;
/* Default (board-loaded, or VBIOS PMU/PREOS) PMU FW on Fermi
* and newer automatically control the fan speed, which would
* interfere with SW control.
*/
return (device->chipset >= 0xc0);
}
void
nvkm_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
{
if (pmu && pmu->func->pgob)
pmu->func->pgob(pmu, enable);
}
static void
nvkm_pmu_recv(struct work_struct *work)
{
struct nvkm_pmu *pmu = container_of(work, typeof(*pmu), recv.work);
return pmu->func->recv(pmu);
}
int
nvkm_pmu_send(struct nvkm_pmu *pmu, u32 reply[2],
u32 process, u32 message, u32 data0, u32 data1)
{
if (!pmu || !pmu->func->send)
return -ENODEV;
return pmu->func->send(pmu, reply, process, message, data0, data1);
}
static void
nvkm_pmu_intr(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
if (!pmu->func->intr)
return;
pmu->func->intr(pmu);
}
static int
nvkm_pmu_fini(struct nvkm_subdev *subdev, bool suspend)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
if (pmu->func->fini)
pmu->func->fini(pmu);
flush_work(&pmu->recv.work);
reinit_completion(&pmu->wpr_ready);
nvkm_falcon_cmdq_fini(pmu->lpq);
nvkm_falcon_cmdq_fini(pmu->hpq);
pmu->initmsg_received = false;
return 0;
}
static void
nvkm_pmu_reset(struct nvkm_pmu *pmu)
{
struct nvkm_device *device = pmu->subdev.device;
if (!pmu->func->enabled(pmu))
return;
/* Reset. */
if (pmu->func->reset)
pmu->func->reset(pmu);
/* Wait for IMEM/DMEM scrubbing to be complete. */
nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x10a10c) & 0x00000006))
break;
);
}
static int
nvkm_pmu_preinit(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
nvkm_pmu_reset(pmu);
return 0;
}
static int
nvkm_pmu_init(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
struct nvkm_device *device = pmu->subdev.device;
if (!pmu->func->init)
return 0;
if (pmu->func->enabled(pmu)) {
/* Inhibit interrupts, and wait for idle. */
nvkm_wr32(device, 0x10a014, 0x0000ffff);
nvkm_msec(device, 2000,
if (!nvkm_rd32(device, 0x10a04c))
break;
);
nvkm_pmu_reset(pmu);
}
return pmu->func->init(pmu);
}
static void *
nvkm_pmu_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_pmu *pmu = nvkm_pmu(subdev);
nvkm_falcon_msgq_del(&pmu->msgq);
nvkm_falcon_cmdq_del(&pmu->lpq);
nvkm_falcon_cmdq_del(&pmu->hpq);
nvkm_falcon_qmgr_del(&pmu->qmgr);
nvkm_falcon_dtor(&pmu->falcon);
mutex_destroy(&pmu->send.mutex);
return nvkm_pmu(subdev);
}
static const struct nvkm_subdev_func
nvkm_pmu = {
.dtor = nvkm_pmu_dtor,
.preinit = nvkm_pmu_preinit,
.init = nvkm_pmu_init,
.fini = nvkm_pmu_fini,
.intr = nvkm_pmu_intr,
};
int
nvkm_pmu_ctor(const struct nvkm_pmu_fwif *fwif, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, struct nvkm_pmu *pmu)
{
int ret;
nvkm_subdev_ctor(&nvkm_pmu, device, type, inst, &pmu->subdev);
mutex_init(&pmu->send.mutex);
INIT_WORK(&pmu->recv.work, nvkm_pmu_recv);
init_waitqueue_head(&pmu->recv.wait);
fwif = nvkm_firmware_load(&pmu->subdev, fwif, "Pmu", pmu);
if (IS_ERR(fwif))
return PTR_ERR(fwif);
pmu->func = fwif->func;
ret = nvkm_falcon_ctor(pmu->func->flcn, &pmu->subdev, pmu->subdev.name,
0x10a000, &pmu->falcon);
if (ret)
return ret;
if ((ret = nvkm_falcon_qmgr_new(&pmu->falcon, &pmu->qmgr)) ||
(ret = nvkm_falcon_cmdq_new(pmu->qmgr, "hpq", &pmu->hpq)) ||
(ret = nvkm_falcon_cmdq_new(pmu->qmgr, "lpq", &pmu->lpq)) ||
(ret = nvkm_falcon_msgq_new(pmu->qmgr, "msgq", &pmu->msgq)))
return ret;
init_completion(&pmu->wpr_ready);
return 0;
}
int
nvkm_pmu_new_(const struct nvkm_pmu_fwif *fwif, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, struct nvkm_pmu **ppmu)
{
struct nvkm_pmu *pmu;
if (!(pmu = *ppmu = kzalloc(sizeof(*pmu), GFP_KERNEL)))
return -ENOMEM;
return nvkm_pmu_ctor(fwif, device, type, inst, *ppmu);
}
|
