1 /*
2  * Copyright 2016 Red Hat Inc.
3  *
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:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
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.
21  *
22  * Authors: Ben Skeggs <bskeggs@redhat.com>
23  */
24 #include "priv.h"
25 
26 static int
27 gm200_pmu_flcn_reset(struct nvkm_falcon *falcon)
28 {
29 	struct nvkm_pmu *pmu = container_of(falcon, typeof(*pmu), falcon);
30 
31 	nvkm_falcon_wr32(falcon, 0x014, 0x0000ffff);
32 	pmu->func->reset(pmu);
33 	return nvkm_falcon_enable(falcon);
34 }
35 
36 const struct nvkm_falcon_func
37 gm200_pmu_flcn = {
38 	.debug = 0xc08,
39 	.fbif = 0xe00,
40 	.load_imem = nvkm_falcon_v1_load_imem,
41 	.load_dmem = nvkm_falcon_v1_load_dmem,
42 	.read_dmem = nvkm_falcon_v1_read_dmem,
43 	.bind_context = nvkm_falcon_v1_bind_context,
44 	.wait_for_halt = nvkm_falcon_v1_wait_for_halt,
45 	.clear_interrupt = nvkm_falcon_v1_clear_interrupt,
46 	.set_start_addr = nvkm_falcon_v1_set_start_addr,
47 	.start = nvkm_falcon_v1_start,
48 	.enable = nvkm_falcon_v1_enable,
49 	.disable = nvkm_falcon_v1_disable,
50 	.reset = gm200_pmu_flcn_reset,
51 	.cmdq = { 0x4a0, 0x4b0, 4 },
52 	.msgq = { 0x4c8, 0x4cc, 0 },
53 };
54 
55 static const struct nvkm_pmu_func
56 gm200_pmu = {
57 	.flcn = &gm200_pmu_flcn,
58 	.enabled = gf100_pmu_enabled,
59 	.reset = gf100_pmu_reset,
60 };
61 
62 
63 int
64 gm200_pmu_nofw(struct nvkm_pmu *pmu, int ver, const struct nvkm_pmu_fwif *fwif)
65 {
66 	nvkm_warn(&pmu->subdev, "firmware unavailable\n");
67 	return 0;
68 }
69 
70 static const struct nvkm_pmu_fwif
71 gm200_pmu_fwif[] = {
72 	{ -1, gm200_pmu_nofw, &gm200_pmu },
73 	{}
74 };
75 
76 int
77 gm200_pmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
78 	      struct nvkm_pmu **ppmu)
79 {
80 	return nvkm_pmu_new_(gm200_pmu_fwif, device, type, inst, ppmu);
81 }
82