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 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 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 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 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 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 int 109 gm200_devinit_post(struct nvkm_devinit *base, bool post) 110 { 111 struct nv50_devinit *init = nv50_devinit(base); 112 struct nvkm_subdev *subdev = &init->base.subdev; 113 struct nvkm_device *device = subdev->device; 114 struct nvkm_bios *bios = device->bios; 115 struct bit_entry bit_I; 116 u32 exec, args; 117 int ret; 118 119 if (bit_entry(bios, 'I', &bit_I) || bit_I.version != 1 || 120 bit_I.length < 0x1c) { 121 nvkm_error(subdev, "VBIOS PMU init data not found\n"); 122 return -EINVAL; 123 } 124 125 /* Upload DEVINIT application from VBIOS onto PMU. */ 126 ret = pmu_load(init, 0x04, post, &exec, &args); 127 if (ret) { 128 nvkm_error(subdev, "VBIOS PMU/DEVINIT not found\n"); 129 return ret; 130 } 131 132 /* Upload tables required by opcodes in boot scripts. */ 133 if (post) { 134 u32 pmu = pmu_args(init, args + 0x08, 0x08); 135 u32 img = nvbios_rd16(bios, bit_I.offset + 0x14); 136 u32 len = nvbios_rd16(bios, bit_I.offset + 0x16); 137 pmu_data(init, pmu, img, len); 138 } 139 140 /* Upload boot scripts. */ 141 if (post) { 142 u32 pmu = pmu_args(init, args + 0x08, 0x10); 143 u32 img = nvbios_rd16(bios, bit_I.offset + 0x18); 144 u32 len = nvbios_rd16(bios, bit_I.offset + 0x1a); 145 pmu_data(init, pmu, img, len); 146 } 147 148 /* Execute DEVINIT. */ 149 if (post) { 150 nvkm_wr32(device, 0x10a040, 0x00005000); 151 pmu_exec(init, exec); 152 if (nvkm_msec(device, 2000, 153 if (nvkm_rd32(device, 0x10a040) & 0x00002000) 154 break; 155 ) < 0) 156 return -ETIMEDOUT; 157 } 158 159 /* Optional: Execute PRE_OS application on PMU, which should at 160 * least take care of fans until a full PMU has been loaded. 161 */ 162 pmu_load(init, 0x01, post, NULL, NULL); 163 return 0; 164 } 165 166 static const struct nvkm_devinit_func 167 gm200_devinit = { 168 .preinit = gf100_devinit_preinit, 169 .init = nv50_devinit_init, 170 .post = gm200_devinit_post, 171 .pll_set = gf100_devinit_pll_set, 172 .disable = gm107_devinit_disable, 173 }; 174 175 int 176 gm200_devinit_new(struct nvkm_device *device, int index, 177 struct nvkm_devinit **pinit) 178 { 179 return nv50_devinit_new_(&gm200_devinit, device, index, pinit); 180 } 181