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/pmu.h> 30 #include <subdev/timer.h> 31 32 static void 33 pmu_code(struct nv50_devinit *init, u32 pmu, u32 img, u32 len, bool sec) 34 { 35 struct nvkm_device *device = init->base.subdev.device; 36 struct nvkm_bios *bios = device->bios; 37 int i; 38 39 nvkm_wr32(device, 0x10a180, 0x01000000 | (sec ? 0x10000000 : 0) | pmu); 40 for (i = 0; i < len; i += 4) { 41 if ((i & 0xff) == 0) 42 nvkm_wr32(device, 0x10a188, (pmu + i) >> 8); 43 nvkm_wr32(device, 0x10a184, nvbios_rd32(bios, img + i)); 44 } 45 46 while (i & 0xff) { 47 nvkm_wr32(device, 0x10a184, 0x00000000); 48 i += 4; 49 } 50 } 51 52 static void 53 pmu_data(struct nv50_devinit *init, u32 pmu, u32 img, u32 len) 54 { 55 struct nvkm_device *device = init->base.subdev.device; 56 struct nvkm_bios *bios = device->bios; 57 int i; 58 59 nvkm_wr32(device, 0x10a1c0, 0x01000000 | pmu); 60 for (i = 0; i < len; i += 4) 61 nvkm_wr32(device, 0x10a1c4, nvbios_rd32(bios, img + i)); 62 } 63 64 static u32 65 pmu_args(struct nv50_devinit *init, u32 argp, u32 argi) 66 { 67 struct nvkm_device *device = init->base.subdev.device; 68 nvkm_wr32(device, 0x10a1c0, argp); 69 nvkm_wr32(device, 0x10a1c0, nvkm_rd32(device, 0x10a1c4) + argi); 70 return nvkm_rd32(device, 0x10a1c4); 71 } 72 73 static void 74 pmu_exec(struct nv50_devinit *init, u32 init_addr) 75 { 76 struct nvkm_device *device = init->base.subdev.device; 77 nvkm_wr32(device, 0x10a104, init_addr); 78 nvkm_wr32(device, 0x10a10c, 0x00000000); 79 nvkm_wr32(device, 0x10a100, 0x00000002); 80 } 81 82 static int 83 pmu_load(struct nv50_devinit *init, u8 type, bool post, 84 u32 *init_addr_pmu, u32 *args_addr_pmu) 85 { 86 struct nvkm_subdev *subdev = &init->base.subdev; 87 struct nvkm_bios *bios = subdev->device->bios; 88 struct nvbios_pmuR pmu; 89 int ret; 90 91 if (!nvbios_pmuRm(bios, type, &pmu)) 92 return -EINVAL; 93 94 if (!post || !subdev->device->pmu) 95 return 0; 96 97 ret = nvkm_falcon_reset(&subdev->device->pmu->falcon); 98 if (ret) 99 return ret; 100 101 pmu_code(init, pmu.boot_addr_pmu, pmu.boot_addr, pmu.boot_size, false); 102 pmu_code(init, pmu.code_addr_pmu, pmu.code_addr, pmu.code_size, true); 103 pmu_data(init, pmu.data_addr_pmu, pmu.data_addr, pmu.data_size); 104 105 if (init_addr_pmu) { 106 *init_addr_pmu = pmu.init_addr_pmu; 107 *args_addr_pmu = pmu.args_addr_pmu; 108 return 0; 109 } 110 111 return pmu_exec(init, pmu.init_addr_pmu), 0; 112 } 113 114 void 115 gm200_devinit_preos(struct nv50_devinit *init, bool post) 116 { 117 /* Optional: Execute PRE_OS application on PMU, which should at 118 * least take care of fans until a full PMU has been loaded. 119 */ 120 pmu_load(init, 0x01, post, NULL, NULL); 121 } 122 123 int 124 gm200_devinit_post(struct nvkm_devinit *base, bool post) 125 { 126 struct nv50_devinit *init = nv50_devinit(base); 127 struct nvkm_subdev *subdev = &init->base.subdev; 128 struct nvkm_device *device = subdev->device; 129 struct nvkm_bios *bios = device->bios; 130 struct bit_entry bit_I; 131 u32 exec, args; 132 int ret; 133 134 if (bit_entry(bios, 'I', &bit_I) || bit_I.version != 1 || 135 bit_I.length < 0x1c) { 136 nvkm_error(subdev, "VBIOS PMU init data not found\n"); 137 return -EINVAL; 138 } 139 140 /* Upload DEVINIT application from VBIOS onto PMU. */ 141 ret = pmu_load(init, 0x04, post, &exec, &args); 142 if (ret) { 143 nvkm_error(subdev, "VBIOS PMU/DEVINIT not found\n"); 144 return ret; 145 } 146 147 /* Upload tables required by opcodes in boot scripts. */ 148 if (post) { 149 u32 pmu = pmu_args(init, args + 0x08, 0x08); 150 u32 img = nvbios_rd16(bios, bit_I.offset + 0x14); 151 u32 len = nvbios_rd16(bios, bit_I.offset + 0x16); 152 pmu_data(init, pmu, img, len); 153 } 154 155 /* Upload boot scripts. */ 156 if (post) { 157 u32 pmu = pmu_args(init, args + 0x08, 0x10); 158 u32 img = nvbios_rd16(bios, bit_I.offset + 0x18); 159 u32 len = nvbios_rd16(bios, bit_I.offset + 0x1a); 160 pmu_data(init, pmu, img, len); 161 } 162 163 /* Execute DEVINIT. */ 164 if (post) { 165 nvkm_wr32(device, 0x10a040, 0x00005000); 166 pmu_exec(init, exec); 167 if (nvkm_msec(device, 2000, 168 if (nvkm_rd32(device, 0x10a040) & 0x00002000) 169 break; 170 ) < 0) 171 return -ETIMEDOUT; 172 } 173 174 gm200_devinit_preos(init, post); 175 return 0; 176 } 177 178 static const struct nvkm_devinit_func 179 gm200_devinit = { 180 .preinit = gf100_devinit_preinit, 181 .init = nv50_devinit_init, 182 .post = gm200_devinit_post, 183 .pll_set = gf100_devinit_pll_set, 184 .disable = gm107_devinit_disable, 185 }; 186 187 int 188 gm200_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 189 struct nvkm_devinit **pinit) 190 { 191 return nv50_devinit_new_(&gm200_devinit, device, type, inst, pinit); 192 } 193