drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv84.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
  25 #include "nv50.h"
  26
  27 static u64
  28 nv84_devinit_disable(struct nouveau_devinit *devinit)
  29 {
  30         struct nv50_devinit_priv *priv = (void *)devinit;
  31         u32 r001540 = nv_rd32(priv, 0x001540);
  32         u32 r00154c = nv_rd32(priv, 0x00154c);
  33         u64 disable = 0ULL;
  34
  35         if (!(r001540 & 0x40000000)) {
  36                 disable |= (1ULL << NVDEV_ENGINE_MPEG);
  37                 disable |= (1ULL << NVDEV_ENGINE_VP);
  38                 disable |= (1ULL << NVDEV_ENGINE_BSP);
  39                 disable |= (1ULL << NVDEV_ENGINE_CIPHER);
  40         }
  41
  42         if (!(r00154c & 0x00000004))
  43                 disable |= (1ULL << NVDEV_ENGINE_DISP);
  44         if (!(r00154c & 0x00000020))
  45                 disable |= (1ULL << NVDEV_ENGINE_BSP);
  46         if (!(r00154c & 0x00000040))
  47                 disable |= (1ULL << NVDEV_ENGINE_CIPHER);
  48
  49         return disable;
  50 }
  51
  52 struct nouveau_oclass *
  53 nv84_devinit_oclass = &(struct nouveau_devinit_impl) {
  54         .base.handle = NV_SUBDEV(DEVINIT, 0x84),
  55         .base.ofuncs = &(struct nouveau_ofuncs) {
  56                 .ctor = nv50_devinit_ctor,
  57                 .dtor = _nouveau_devinit_dtor,
  58                 .init = nv50_devinit_init,
  59                 .fini = _nouveau_devinit_fini,
  60         },
  61         .pll_set = nv50_devinit_pll_set,
  62         .disable = nv84_devinit_disable,
  63         .post = nvbios_init,
  64 }.base;