drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm204.c

   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
  30 static void
  31 pmu_code(struct nv50_devinit *init, u32 pmu, u32 img, u32 len, bool sec)
  32 {
  33         struct nvkm_device *device = init->base.subdev.device;
  34         struct nvkm_bios *bios = device->bios;
  35         int i;
  36
  37         nvkm_wr32(device, 0x10a180, 0x01000000 | (sec ? 0x10000000 : 0) | pmu);
  38         for (i = 0; i < len; i += 4) {
  39                 if ((i & 0xff) == 0)
  40                         nvkm_wr32(device, 0x10a188, (pmu + i) >> 8);
  41                 nvkm_wr32(device, 0x10a184, nvbios_rd32(bios, img + i));
  42         }
  43
  44         while (i & 0xff) {
  45                 nvkm_wr32(device, 0x10a184, 0x00000000);
  46                 i += 4;
  47         }
  48 }
  49
  50 static void
  51 pmu_data(struct nv50_devinit *init, u32 pmu, u32 img, u32 len)
  52 {
  53         struct nvkm_device *device = init->base.subdev.device;
  54         struct nvkm_bios *bios = device->bios;
  55         int i;
  56
  57         nvkm_wr32(device, 0x10a1c0, 0x01000000 | pmu);
  58         for (i = 0; i < len; i += 4)
  59                 nvkm_wr32(device, 0x10a1c4, nvbios_rd32(bios, img + i));
  60 }
  61
  62 static u32
  63 pmu_args(struct nv50_devinit *init, u32 argp, u32 argi)
  64 {
  65         struct nvkm_device *device = init->base.subdev.device;
  66         nvkm_wr32(device, 0x10a1c0, argp);
  67         nvkm_wr32(device, 0x10a1c0, nvkm_rd32(device, 0x10a1c4) + argi);
  68         return nvkm_rd32(device, 0x10a1c4);
  69 }
  70
  71 static void
  72 pmu_exec(struct nv50_devinit *init, u32 init_addr)
  73 {
  74         struct nvkm_device *device = init->base.subdev.device;
  75         nvkm_wr32(device, 0x10a104, init_addr);
  76         nvkm_wr32(device, 0x10a10c, 0x00000000);
  77         nvkm_wr32(device, 0x10a100, 0x00000002);
  78 }
  79
  80 static int
  81 pmu_load(struct nv50_devinit *init, u8 type, bool post,
  82          u32 *init_addr_pmu, u32 *args_addr_pmu)
  83 {
  84         struct nvkm_subdev *subdev = &init->base.subdev;
  85         struct nvkm_bios *bios = subdev->device->bios;
  86         struct nvbios_pmuR pmu;
  87
  88         if (!nvbios_pmuRm(bios, type, &pmu)) {
  89                 nvkm_error(subdev, "VBIOS PMU fuc %02x not found\n", type);
  90                 return -EINVAL;
  91         }
  92
  93         if (!post)
  94                 return 0;
  95
  96         pmu_code(init, pmu.boot_addr_pmu, pmu.boot_addr, pmu.boot_size, false);
  97         pmu_code(init, pmu.code_addr_pmu, pmu.code_addr, pmu.code_size, true);
  98         pmu_data(init, pmu.data_addr_pmu, pmu.data_addr, pmu.data_size);
  99
 100         if (init_addr_pmu) {
 101                 *init_addr_pmu = pmu.init_addr_pmu;
 102                 *args_addr_pmu = pmu.args_addr_pmu;
 103                 return 0;
 104         }
 105
 106         return pmu_exec(init, pmu.init_addr_pmu), 0;
 107 }
 108
 109 static int
 110 gm204_devinit_post(struct nvkm_devinit *base, bool post)
 111 {
 112         struct nv50_devinit *init = nv50_devinit(base);
 113         struct nvkm_subdev *subdev = &init->base.subdev;
 114         struct nvkm_device *device = subdev->device;
 115         struct nvkm_bios *bios = device->bios;
 116         struct bit_entry bit_I;
 117         u32 exec, args;
 118         int ret;
 119
 120         if (bit_entry(bios, 'I', &bit_I) || bit_I.version != 1 ||
 121                                             bit_I.length < 0x1c) {
 122                 nvkm_error(subdev, "VBIOS PMU init data not found\n");
 123                 return -EINVAL;
 124         }
 125
 126         /* reset PMU and load init table parser ucode */
 127         if (post) {
 128                 nvkm_mask(device, 0x000200, 0x00002000, 0x00000000);
 129                 nvkm_mask(device, 0x000200, 0x00002000, 0x00002000);
 130                 nvkm_rd32(device, 0x000200);
 131                 while (nvkm_rd32(device, 0x10a10c) & 0x00000006) {
 132                 }
 133         }
 134
 135         ret = pmu_load(init, 0x04, post, &exec, &args);
 136         if (ret)
 137                 return ret;
 138
 139         /* upload first chunk of init data */
 140         if (post) {
 141                 u32 pmu = pmu_args(init, args + 0x08, 0x08);
 142                 u32 img = nvbios_rd16(bios, bit_I.offset + 0x14);
 143                 u32 len = nvbios_rd16(bios, bit_I.offset + 0x16);
 144                 pmu_data(init, pmu, img, len);
 145         }
 146
 147         /* upload second chunk of init data */
 148         if (post) {
 149                 u32 pmu = pmu_args(init, args + 0x08, 0x10);
 150                 u32 img = nvbios_rd16(bios, bit_I.offset + 0x18);
 151                 u32 len = nvbios_rd16(bios, bit_I.offset + 0x1a);
 152                 pmu_data(init, pmu, img, len);
 153         }
 154
 155         /* execute init tables */
 156         if (post) {
 157                 nvkm_wr32(device, 0x10a040, 0x00005000);
 158                 pmu_exec(init, exec);
 159                 while (!(nvkm_rd32(device, 0x10a040) & 0x00002000)) {
 160                 }
 161         }
 162
 163         /* load and execute some other ucode image (bios therm?) */
 164         return pmu_load(init, 0x01, post, NULL, NULL);
 165 }
 166
 167 static const struct nvkm_devinit_func
 168 gm204_devinit = {
 169         .preinit = nv50_devinit_preinit,
 170         .init = nv50_devinit_init,
 171         .post = gm204_devinit_post,
 172         .pll_set = gf100_devinit_pll_set,
 173         .disable = gm107_devinit_disable,
 174 };
 175
 176 int
 177 gm204_devinit_new(struct nvkm_device *device, int index,
 178                 struct nvkm_devinit **pinit)
 179 {
 180         return nv50_devinit_new_(&gm204_devinit, device, index, pinit);
 181 }