LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/g84.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
  29static u64
  30g84_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                nvkm_subdev_disable(device, NVKM_ENGINE_MPEG, 0);
  39                nvkm_subdev_disable(device, NVKM_ENGINE_VP, 0);
  40                nvkm_subdev_disable(device, NVKM_ENGINE_BSP, 0);
  41                nvkm_subdev_disable(device, NVKM_ENGINE_CIPHER, 0);
  42        }
  43
  44        if (!(r00154c & 0x00000004))
  45                nvkm_subdev_disable(device, NVKM_ENGINE_DISP, 0);
  46        if (!(r00154c & 0x00000020))
  47                nvkm_subdev_disable(device, NVKM_ENGINE_BSP, 0);
  48        if (!(r00154c & 0x00000040))
  49                nvkm_subdev_disable(device, NVKM_ENGINE_CIPHER, 0);
  50
  51        return disable;
  52}
  53
  54static const struct nvkm_devinit_func
  55g84_devinit = {
  56        .preinit = nv50_devinit_preinit,
  57        .init = nv50_devinit_init,
  58        .post = nv04_devinit_post,
  59        .pll_set = nv50_devinit_pll_set,
  60        .disable = g84_devinit_disable,
  61};
  62
  63int
  64g84_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
  65                struct nvkm_devinit **pinit)
  66{
  67        return nv50_devinit_new_(&g84_devinit, device, type, inst, pinit);
  68}
  69