1 /*
2 * Copyright 2013 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
23 */
24 #include "nv50.h"
25
26 #include <subdev/bios.h>
27 #include <subdev/bios/bit.h>
28 #include <subdev/bios/pmu.h>
29 #include <subdev/timer.h>
30
31 static void
pmu_code(struct nv50_devinit * init,u32 pmu,u32 img,u32 len,bool sec)32 pmu_code(struct nv50_devinit *init, u32 pmu, u32 img, u32 len, bool sec)
33 {
34 struct nvkm_device *device = init->base.subdev.device;
35 struct nvkm_bios *bios = device->bios;
36 int i;
37
38 nvkm_wr32(device, 0x10a180, 0x01000000 | (sec ? 0x10000000 : 0) | pmu);
39 for (i = 0; i < len; i += 4) {
40 if ((i & 0xff) == 0)
41 nvkm_wr32(device, 0x10a188, (pmu + i) >> 8);
42 nvkm_wr32(device, 0x10a184, nvbios_rd32(bios, img + i));
43 }
44
45 while (i & 0xff) {
46 nvkm_wr32(device, 0x10a184, 0x00000000);
47 i += 4;
48 }
49 }
50
51 static void
pmu_data(struct nv50_devinit * init,u32 pmu,u32 img,u32 len)52 pmu_data(struct nv50_devinit *init, u32 pmu, u32 img, u32 len)
53 {
54 struct nvkm_device *device = init->base.subdev.device;
55 struct nvkm_bios *bios = device->bios;
56 int i;
57
58 nvkm_wr32(device, 0x10a1c0, 0x01000000 | pmu);
59 for (i = 0; i < len; i += 4)
60 nvkm_wr32(device, 0x10a1c4, nvbios_rd32(bios, img + i));
61 }
62
63 static u32
pmu_args(struct nv50_devinit * init,u32 argp,u32 argi)64 pmu_args(struct nv50_devinit *init, u32 argp, u32 argi)
65 {
66 struct nvkm_device *device = init->base.subdev.device;
67 nvkm_wr32(device, 0x10a1c0, argp);
68 nvkm_wr32(device, 0x10a1c0, nvkm_rd32(device, 0x10a1c4) + argi);
69 return nvkm_rd32(device, 0x10a1c4);
70 }
71
72 static void
pmu_exec(struct nv50_devinit * init,u32 init_addr)73 pmu_exec(struct nv50_devinit *init, u32 init_addr)
74 {
75 struct nvkm_device *device = init->base.subdev.device;
76 nvkm_wr32(device, 0x10a104, init_addr);
77 nvkm_wr32(device, 0x10a10c, 0x00000000);
78 nvkm_wr32(device, 0x10a100, 0x00000002);
79 }
80
81 static int
pmu_load(struct nv50_devinit * init,u8 type,bool post,u32 * init_addr_pmu,u32 * args_addr_pmu)82 pmu_load(struct nv50_devinit *init, u8 type, bool post,
83 u32 *init_addr_pmu, u32 *args_addr_pmu)
84 {
85 struct nvkm_subdev *subdev = &init->base.subdev;
86 struct nvkm_bios *bios = subdev->device->bios;
87 struct nvbios_pmuR pmu;
88
89 if (!nvbios_pmuRm(bios, type, &pmu))
90 return -EINVAL;
91
92 if (!post)
93 return 0;
94
95 pmu_code(init, pmu.boot_addr_pmu, pmu.boot_addr, pmu.boot_size, false);
96 pmu_code(init, pmu.code_addr_pmu, pmu.code_addr, pmu.code_size, true);
97 pmu_data(init, pmu.data_addr_pmu, pmu.data_addr, pmu.data_size);
98
99 if (init_addr_pmu) {
100 *init_addr_pmu = pmu.init_addr_pmu;
101 *args_addr_pmu = pmu.args_addr_pmu;
102 return 0;
103 }
104
105 return pmu_exec(init, pmu.init_addr_pmu), 0;
106 }
107
108 void
gm200_devinit_preos(struct nv50_devinit * init,bool post)109 gm200_devinit_preos(struct nv50_devinit *init, bool post)
110 {
111 /* Optional: Execute PRE_OS application on PMU, which should at
112 * least take care of fans until a full PMU has been loaded.
113 */
114 pmu_load(init, 0x01, post, NULL, NULL);
115 }
116
117 int
gm200_devinit_post(struct nvkm_devinit * base,bool post)118 gm200_devinit_post(struct nvkm_devinit *base, bool post)
119 {
120 struct nv50_devinit *init = nv50_devinit(base);
121 struct nvkm_subdev *subdev = &init->base.subdev;
122 struct nvkm_device *device = subdev->device;
123 struct nvkm_bios *bios = device->bios;
124 struct bit_entry bit_I;
125 u32 exec, args;
126 int ret;
127
128 if (bit_entry(bios, 'I', &bit_I) || bit_I.version != 1 ||
129 bit_I.length < 0x1c) {
130 nvkm_error(subdev, "VBIOS PMU init data not found\n");
131 return -EINVAL;
132 }
133
134 /* Upload DEVINIT application from VBIOS onto PMU. */
135 ret = pmu_load(init, 0x04, post, &exec, &args);
136 if (ret) {
137 nvkm_error(subdev, "VBIOS PMU/DEVINIT not found\n");
138 return ret;
139 }
140
141 /* Upload tables required by opcodes in boot scripts. */
142 if (post) {
143 u32 pmu = pmu_args(init, args + 0x08, 0x08);
144 u32 img = nvbios_rd16(bios, bit_I.offset + 0x14);
145 u32 len = nvbios_rd16(bios, bit_I.offset + 0x16);
146 pmu_data(init, pmu, img, len);
147 }
148
149 /* Upload boot scripts. */
150 if (post) {
151 u32 pmu = pmu_args(init, args + 0x08, 0x10);
152 u32 img = nvbios_rd16(bios, bit_I.offset + 0x18);
153 u32 len = nvbios_rd16(bios, bit_I.offset + 0x1a);
154 pmu_data(init, pmu, img, len);
155 }
156
157 /* Execute DEVINIT. */
158 if (post) {
159 nvkm_wr32(device, 0x10a040, 0x00005000);
160 pmu_exec(init, exec);
161 if (nvkm_msec(device, 2000,
162 if (nvkm_rd32(device, 0x10a040) & 0x00002000)
163 break;
164 ) < 0)
165 return -ETIMEDOUT;
166 }
167
168 gm200_devinit_preos(init, post);
169 return 0;
170 }
171
172 static const struct nvkm_devinit_func
173 gm200_devinit = {
174 .preinit = gf100_devinit_preinit,
175 .init = nv50_devinit_init,
176 .post = gm200_devinit_post,
177 .pll_set = gf100_devinit_pll_set,
178 .disable = gm107_devinit_disable,
179 };
180
181 int
gm200_devinit_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_devinit ** pinit)182 gm200_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
183 struct nvkm_devinit **pinit)
184 {
185 return nv50_devinit_new_(&gm200_devinit, device, type, inst, pinit);
186 }
187