1 /* $NetBSD: nouveau_nvkm_subdev_devinit_gm200.c,v 1.2 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_gm200.c,v 1.2 2021/12/18 23:45:39 riastradh Exp $");
28
29 #include "nv50.h"
30
31 #include <subdev/bios.h>
32 #include <subdev/bios/bit.h>
33 #include <subdev/bios/pmu.h>
34 #include <subdev/timer.h>
35
36 static void
pmu_code(struct nv50_devinit * init,u32 pmu,u32 img,u32 len,bool sec)37 pmu_code(struct nv50_devinit *init, u32 pmu, u32 img, u32 len, bool sec)
38 {
39 struct nvkm_device *device = init->base.subdev.device;
40 struct nvkm_bios *bios = device->bios;
41 int i;
42
43 nvkm_wr32(device, 0x10a180, 0x01000000 | (sec ? 0x10000000 : 0) | pmu);
44 for (i = 0; i < len; i += 4) {
45 if ((i & 0xff) == 0)
46 nvkm_wr32(device, 0x10a188, (pmu + i) >> 8);
47 nvkm_wr32(device, 0x10a184, nvbios_rd32(bios, img + i));
48 }
49
50 while (i & 0xff) {
51 nvkm_wr32(device, 0x10a184, 0x00000000);
52 i += 4;
53 }
54 }
55
56 static void
pmu_data(struct nv50_devinit * init,u32 pmu,u32 img,u32 len)57 pmu_data(struct nv50_devinit *init, u32 pmu, u32 img, u32 len)
58 {
59 struct nvkm_device *device = init->base.subdev.device;
60 struct nvkm_bios *bios = device->bios;
61 int i;
62
63 nvkm_wr32(device, 0x10a1c0, 0x01000000 | pmu);
64 for (i = 0; i < len; i += 4)
65 nvkm_wr32(device, 0x10a1c4, nvbios_rd32(bios, img + i));
66 }
67
68 static u32
pmu_args(struct nv50_devinit * init,u32 argp,u32 argi)69 pmu_args(struct nv50_devinit *init, u32 argp, u32 argi)
70 {
71 struct nvkm_device *device = init->base.subdev.device;
72 nvkm_wr32(device, 0x10a1c0, argp);
73 nvkm_wr32(device, 0x10a1c0, nvkm_rd32(device, 0x10a1c4) + argi);
74 return nvkm_rd32(device, 0x10a1c4);
75 }
76
77 static void
pmu_exec(struct nv50_devinit * init,u32 init_addr)78 pmu_exec(struct nv50_devinit *init, u32 init_addr)
79 {
80 struct nvkm_device *device = init->base.subdev.device;
81 nvkm_wr32(device, 0x10a104, init_addr);
82 nvkm_wr32(device, 0x10a10c, 0x00000000);
83 nvkm_wr32(device, 0x10a100, 0x00000002);
84 }
85
86 static int
pmu_load(struct nv50_devinit * init,u8 type,bool post,u32 * init_addr_pmu,u32 * args_addr_pmu)87 pmu_load(struct nv50_devinit *init, u8 type, bool post,
88 u32 *init_addr_pmu, u32 *args_addr_pmu)
89 {
90 struct nvkm_subdev *subdev = &init->base.subdev;
91 struct nvkm_bios *bios = subdev->device->bios;
92 struct nvbios_pmuR pmu;
93
94 if (!nvbios_pmuRm(bios, type, &pmu))
95 return -EINVAL;
96
97 if (!post)
98 return 0;
99
100 pmu_code(init, pmu.boot_addr_pmu, pmu.boot_addr, pmu.boot_size, false);
101 pmu_code(init, pmu.code_addr_pmu, pmu.code_addr, pmu.code_size, true);
102 pmu_data(init, pmu.data_addr_pmu, pmu.data_addr, pmu.data_size);
103
104 if (init_addr_pmu) {
105 *init_addr_pmu = pmu.init_addr_pmu;
106 *args_addr_pmu = pmu.args_addr_pmu;
107 return 0;
108 }
109
110 return pmu_exec(init, pmu.init_addr_pmu), 0;
111 }
112
113 void
gm200_devinit_preos(struct nv50_devinit * init,bool post)114 gm200_devinit_preos(struct nv50_devinit *init, bool post)
115 {
116 /* Optional: Execute PRE_OS application on PMU, which should at
117 * least take care of fans until a full PMU has been loaded.
118 */
119 pmu_load(init, 0x01, post, NULL, NULL);
120 }
121
122 int
gm200_devinit_post(struct nvkm_devinit * base,bool post)123 gm200_devinit_post(struct nvkm_devinit *base, bool post)
124 {
125 struct nv50_devinit *init = nv50_devinit(base);
126 struct nvkm_subdev *subdev = &init->base.subdev;
127 struct nvkm_device *device = subdev->device;
128 struct nvkm_bios *bios = device->bios;
129 struct bit_entry bit_I;
130 u32 exec, args;
131 int ret;
132
133 if (bit_entry(bios, 'I', &bit_I) || bit_I.version != 1 ||
134 bit_I.length < 0x1c) {
135 nvkm_error(subdev, "VBIOS PMU init data not found\n");
136 return -EINVAL;
137 }
138
139 /* Upload DEVINIT application from VBIOS onto PMU. */
140 ret = pmu_load(init, 0x04, post, &exec, &args);
141 if (ret) {
142 nvkm_error(subdev, "VBIOS PMU/DEVINIT not found\n");
143 return ret;
144 }
145
146 /* Upload tables required by opcodes in boot scripts. */
147 if (post) {
148 u32 pmu = pmu_args(init, args + 0x08, 0x08);
149 u32 img = nvbios_rd16(bios, bit_I.offset + 0x14);
150 u32 len = nvbios_rd16(bios, bit_I.offset + 0x16);
151 pmu_data(init, pmu, img, len);
152 }
153
154 /* Upload boot scripts. */
155 if (post) {
156 u32 pmu = pmu_args(init, args + 0x08, 0x10);
157 u32 img = nvbios_rd16(bios, bit_I.offset + 0x18);
158 u32 len = nvbios_rd16(bios, bit_I.offset + 0x1a);
159 pmu_data(init, pmu, img, len);
160 }
161
162 /* Execute DEVINIT. */
163 if (post) {
164 nvkm_wr32(device, 0x10a040, 0x00005000);
165 pmu_exec(init, exec);
166 if (nvkm_msec(device, 2000,
167 if (nvkm_rd32(device, 0x10a040) & 0x00002000)
168 break;
169 ) < 0)
170 return -ETIMEDOUT;
171 }
172
173 gm200_devinit_preos(init, post);
174 return 0;
175 }
176
177 static const struct nvkm_devinit_func
178 gm200_devinit = {
179 .preinit = gf100_devinit_preinit,
180 .init = nv50_devinit_init,
181 .post = gm200_devinit_post,
182 .pll_set = gf100_devinit_pll_set,
183 .disable = gm107_devinit_disable,
184 };
185
186 int
gm200_devinit_new(struct nvkm_device * device,int index,struct nvkm_devinit ** pinit)187 gm200_devinit_new(struct nvkm_device *device, int index,
188 struct nvkm_devinit **pinit)
189 {
190 return nv50_devinit_new_(&gm200_devinit, device, index, pinit);
191 }
192