drivers/gpu/drm/nouveau/nvkm/subdev/devinit/g98.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/init.h>
  28
  29 static u64
  30 g98_devinit_disable(struct nvkm_devinit *init)
  31 {
  32         struct nvkm_device *device = init->subdev.device;
  33         u32 r001540 = nvkm_rd32(device, 0x001540);
  34         u32 r00154c = nvkm_rd32(device, 0x00154c);
  35         u64 disable = 0ULL;
  36
  37         if (!(r001540 & 0x40000000)) {
  38                 disable |= (1ULL << NVKM_ENGINE_MSPDEC);
  39                 disable |= (1ULL << NVKM_ENGINE_MSVLD);
  40                 disable |= (1ULL << NVKM_ENGINE_MSPPP);
  41         }
  42
  43         if (!(r00154c & 0x00000004))
  44                 disable |= (1ULL << NVKM_ENGINE_DISP);
  45         if (!(r00154c & 0x00000020))
  46                 disable |= (1ULL << NVKM_ENGINE_MSVLD);
  47         if (!(r00154c & 0x00000040))
  48                 disable |= (1ULL << NVKM_ENGINE_SEC);
  49
  50         return disable;
  51 }
  52
  53 static const struct nvkm_devinit_func
  54 g98_devinit = {
  55         .preinit = nv50_devinit_preinit,
  56         .init = nv50_devinit_init,
  57         .post = nv04_devinit_post,
  58         .pll_set = nv50_devinit_pll_set,
  59         .disable = g98_devinit_disable,
  60 };
  61
  62 int
  63 g98_devinit_new(struct nvkm_device *device, int index,
  64                 struct nvkm_devinit **pinit)
  65 {
  66         return nv50_devinit_new_(&g98_devinit, device, index, pinit);
  67 }