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1/*2 * Copyright 2013 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */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 32static void33pmu_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 52static void53pmu_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 64static u3265pmu_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 73static void74pmu_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 82static int83pmu_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 114void115gm200_devinit_preos(struct nv50_devinit *init, bool post)116{117 /* Optional: Execute PRE_OS application on PMU, which should at118 * least take care of fans until a full PMU has been loaded.119 */120 pmu_load(init, 0x01, post, NULL, NULL);121}122 123int124gm200_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 178static const struct nvkm_devinit_func179gm200_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 187int188gm200_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