root/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c

DEFINITIONS

1. pmu_code
2. pmu_data
3. pmu_args
4. pmu_exec
5. pmu_load
6. gm200_devinit_preos
7. gm200_devinit_post
8. gm200_devinit_new

   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 void
 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
 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
 182 gm200_devinit_new(struct nvkm_device *device, int index,
 183                 struct nvkm_devinit **pinit)
 184 {
 185         return nv50_devinit_new_(&gm200_devinit, device, index, pinit);
 186 }