1 /* $NetBSD: nouveau_nvkm_subdev_devinit_gf100.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $ */
2
3 /*
4 * Copyright 2013 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_devinit_gf100.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $");
28
29 #include "nv50.h"
30
31 #include <subdev/bios.h>
32 #include <subdev/bios/init.h>
33 #include <subdev/bios/pll.h>
34 #include <subdev/clk/pll.h>
35
36 int
gf100_devinit_pll_set(struct nvkm_devinit * init,u32 type,u32 freq)37 gf100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
38 {
39 struct nvkm_subdev *subdev = &init->subdev;
40 struct nvkm_device *device = subdev->device;
41 struct nvbios_pll info;
42 int N, fN, M, P;
43 int ret;
44
45 ret = nvbios_pll_parse(device->bios, type, &info);
46 if (ret)
47 return ret;
48
49 ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
50 if (ret < 0)
51 return ret;
52
53 switch (info.type) {
54 case PLL_VPLL0:
55 case PLL_VPLL1:
56 case PLL_VPLL2:
57 case PLL_VPLL3:
58 nvkm_mask(device, info.reg + 0x0c, 0x00000000, 0x00000100);
59 nvkm_wr32(device, info.reg + 0x04, (P << 16) | (N << 8) | M);
60 nvkm_wr32(device, info.reg + 0x10, fN << 16);
61 break;
62 default:
63 nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
64 ret = -EINVAL;
65 break;
66 }
67
68 return ret;
69 }
70
71 static u64
gf100_devinit_disable(struct nvkm_devinit * init)72 gf100_devinit_disable(struct nvkm_devinit *init)
73 {
74 struct nvkm_device *device = init->subdev.device;
75 u32 r022500 = nvkm_rd32(device, 0x022500);
76 u64 disable = 0ULL;
77
78 if (r022500 & 0x00000001)
79 disable |= (1ULL << NVKM_ENGINE_DISP);
80
81 if (r022500 & 0x00000002) {
82 disable |= (1ULL << NVKM_ENGINE_MSPDEC);
83 disable |= (1ULL << NVKM_ENGINE_MSPPP);
84 }
85
86 if (r022500 & 0x00000004)
87 disable |= (1ULL << NVKM_ENGINE_MSVLD);
88 if (r022500 & 0x00000008)
89 disable |= (1ULL << NVKM_ENGINE_MSENC);
90 if (r022500 & 0x00000100)
91 disable |= (1ULL << NVKM_ENGINE_CE0);
92 if (r022500 & 0x00000200)
93 disable |= (1ULL << NVKM_ENGINE_CE1);
94
95 return disable;
96 }
97
98 void
gf100_devinit_preinit(struct nvkm_devinit * base)99 gf100_devinit_preinit(struct nvkm_devinit *base)
100 {
101 struct nv50_devinit *init = nv50_devinit(base);
102 struct nvkm_subdev *subdev = &init->base.subdev;
103 struct nvkm_device *device = subdev->device;
104
105 /*
106 * This bit is set by devinit, and flips back to 0 on suspend. We
107 * can use it as a reliable way to know whether we should run devinit.
108 */
109 base->post = ((nvkm_rd32(device, 0x2240c) & BIT(1)) == 0);
110 }
111
112 static const struct nvkm_devinit_func
113 gf100_devinit = {
114 .preinit = gf100_devinit_preinit,
115 .init = nv50_devinit_init,
116 .post = nv04_devinit_post,
117 .pll_set = gf100_devinit_pll_set,
118 .disable = gf100_devinit_disable,
119 };
120
121 int
gf100_devinit_new(struct nvkm_device * device,int index,struct nvkm_devinit ** pinit)122 gf100_devinit_new(struct nvkm_device *device, int index,
123 struct nvkm_devinit **pinit)
124 {
125 return nv50_devinit_new_(&gf100_devinit, device, index, pinit);
126 }
127