2 * Copyright 2013 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
26 #include <core/firmware.h>
27 #include <subdev/timer.h>
30 nvkm_pmu_fan_controlled(struct nvkm_device
*device
)
32 struct nvkm_pmu
*pmu
= device
->pmu
;
34 /* Internal PMU FW does not currently control fans in any way,
35 * allow SW control of fans instead.
37 if (pmu
&& pmu
->func
->code
.size
)
40 /* Default (board-loaded, or VBIOS PMU/PREOS) PMU FW on Fermi
41 * and newer automatically control the fan speed, which would
42 * interfere with SW control.
44 return (device
->chipset
>= 0xc0);
48 nvkm_pmu_pgob(struct nvkm_pmu
*pmu
, bool enable
)
50 if (pmu
&& pmu
->func
->pgob
)
51 pmu
->func
->pgob(pmu
, enable
);
55 nvkm_pmu_recv(struct work_struct
*work
)
57 struct nvkm_pmu
*pmu
= container_of(work
, typeof(*pmu
), recv
.work
);
58 return pmu
->func
->recv(pmu
);
62 nvkm_pmu_send(struct nvkm_pmu
*pmu
, u32 reply
[2],
63 u32 process
, u32 message
, u32 data0
, u32 data1
)
65 if (!pmu
|| !pmu
->func
->send
)
67 return pmu
->func
->send(pmu
, reply
, process
, message
, data0
, data1
);
71 nvkm_pmu_intr(struct nvkm_subdev
*subdev
)
73 struct nvkm_pmu
*pmu
= nvkm_pmu(subdev
);
80 nvkm_pmu_fini(struct nvkm_subdev
*subdev
, bool suspend
)
82 struct nvkm_pmu
*pmu
= nvkm_pmu(subdev
);
87 flush_work(&pmu
->recv
.work
);
89 reinit_completion(&pmu
->wpr_ready
);
91 nvkm_falcon_cmdq_fini(pmu
->lpq
);
92 nvkm_falcon_cmdq_fini(pmu
->hpq
);
93 pmu
->initmsg_received
= false;
98 nvkm_pmu_reset(struct nvkm_pmu
*pmu
)
100 struct nvkm_device
*device
= pmu
->subdev
.device
;
102 if (!pmu
->func
->enabled(pmu
))
105 /* Inhibit interrupts, and wait for idle. */
106 nvkm_wr32(device
, 0x10a014, 0x0000ffff);
107 nvkm_msec(device
, 2000,
108 if (!nvkm_rd32(device
, 0x10a04c))
113 if (pmu
->func
->reset
)
114 pmu
->func
->reset(pmu
);
116 /* Wait for IMEM/DMEM scrubbing to be complete. */
117 nvkm_msec(device
, 2000,
118 if (!(nvkm_rd32(device
, 0x10a10c) & 0x00000006))
126 nvkm_pmu_preinit(struct nvkm_subdev
*subdev
)
128 struct nvkm_pmu
*pmu
= nvkm_pmu(subdev
);
129 return nvkm_pmu_reset(pmu
);
133 nvkm_pmu_init(struct nvkm_subdev
*subdev
)
135 struct nvkm_pmu
*pmu
= nvkm_pmu(subdev
);
136 int ret
= nvkm_pmu_reset(pmu
);
137 if (ret
== 0 && pmu
->func
->init
)
138 ret
= pmu
->func
->init(pmu
);
143 nvkm_pmu_dtor(struct nvkm_subdev
*subdev
)
145 struct nvkm_pmu
*pmu
= nvkm_pmu(subdev
);
146 nvkm_falcon_msgq_del(&pmu
->msgq
);
147 nvkm_falcon_cmdq_del(&pmu
->lpq
);
148 nvkm_falcon_cmdq_del(&pmu
->hpq
);
149 nvkm_falcon_qmgr_del(&pmu
->qmgr
);
150 nvkm_falcon_dtor(&pmu
->falcon
);
151 return nvkm_pmu(subdev
);
154 static const struct nvkm_subdev_func
156 .dtor
= nvkm_pmu_dtor
,
157 .preinit
= nvkm_pmu_preinit
,
158 .init
= nvkm_pmu_init
,
159 .fini
= nvkm_pmu_fini
,
160 .intr
= nvkm_pmu_intr
,
164 nvkm_pmu_ctor(const struct nvkm_pmu_fwif
*fwif
, struct nvkm_device
*device
,
165 int index
, struct nvkm_pmu
*pmu
)
169 nvkm_subdev_ctor(&nvkm_pmu
, device
, index
, &pmu
->subdev
);
171 INIT_WORK(&pmu
->recv
.work
, nvkm_pmu_recv
);
172 init_waitqueue_head(&pmu
->recv
.wait
);
174 fwif
= nvkm_firmware_load(&pmu
->subdev
, fwif
, "Pmu", pmu
);
176 return PTR_ERR(fwif
);
178 pmu
->func
= fwif
->func
;
180 ret
= nvkm_falcon_ctor(pmu
->func
->flcn
, &pmu
->subdev
,
181 nvkm_subdev_name
[pmu
->subdev
.index
], 0x10a000,
186 if ((ret
= nvkm_falcon_qmgr_new(&pmu
->falcon
, &pmu
->qmgr
)) ||
187 (ret
= nvkm_falcon_cmdq_new(pmu
->qmgr
, "hpq", &pmu
->hpq
)) ||
188 (ret
= nvkm_falcon_cmdq_new(pmu
->qmgr
, "lpq", &pmu
->lpq
)) ||
189 (ret
= nvkm_falcon_msgq_new(pmu
->qmgr
, "msgq", &pmu
->msgq
)))
192 init_completion(&pmu
->wpr_ready
);
197 nvkm_pmu_new_(const struct nvkm_pmu_fwif
*fwif
, struct nvkm_device
*device
,
198 int index
, struct nvkm_pmu
**ppmu
)
200 struct nvkm_pmu
*pmu
;
201 if (!(pmu
= *ppmu
= kzalloc(sizeof(*pmu
), GFP_KERNEL
)))
203 return nvkm_pmu_ctor(fwif
, device
, index
, *ppmu
);