LXR linux/drivers/gpu/drm/nouveau/core/subdev/fb/nv44.c

   1/*
   2 * Copyright (C) 2010 Francisco Jerez.
   3 * All Rights Reserved.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining
   6 * a copy of this software and associated documentation files (the
   7 * "Software"), to deal in the Software without restriction, including
   8 * without limitation the rights to use, copy, modify, merge, publish,
   9 * distribute, sublicense, and/or sell copies of the Software, and to
  10 * permit persons to whom the Software is furnished to do so, subject to
  11 * the following conditions:
  12 *
  13 * The above copyright notice and this permission notice (including the
  14 * next paragraph) shall be included in all copies or substantial
  15 * portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 *
  25 */
  26
  27#include "nv04.h"
  28
  29static void
  30nv44_fb_tile_init(struct nouveau_fb *pfb, int i, u32 addr, u32 size, u32 pitch,
  31                  u32 flags, struct nouveau_fb_tile *tile)
  32{
  33        tile->addr  = 0x00000001; /* mode = vram */
  34        tile->addr |= addr;
  35        tile->limit = max(1u, addr + size) - 1;
  36        tile->pitch = pitch;
  37}
  38
  39void
  40nv44_fb_tile_prog(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile)
  41{
  42        nv_wr32(pfb, 0x100604 + (i * 0x10), tile->limit);
  43        nv_wr32(pfb, 0x100608 + (i * 0x10), tile->pitch);
  44        nv_wr32(pfb, 0x100600 + (i * 0x10), tile->addr);
  45        nv_rd32(pfb, 0x100600 + (i * 0x10));
  46}
  47
  48int
  49nv44_fb_init(struct nouveau_object *object)
  50{
  51        struct nv04_fb_priv *priv = (void *)object;
  52        int ret;
  53
  54        ret = nouveau_fb_init(&priv->base);
  55        if (ret)
  56                return ret;
  57
  58        nv_wr32(priv, 0x100850, 0x80000000);
  59        nv_wr32(priv, 0x100800, 0x00000001);
  60        return 0;
  61}
  62
  63struct nouveau_oclass *
  64nv44_fb_oclass = &(struct nv04_fb_impl) {
  65        .base.base.handle = NV_SUBDEV(FB, 0x44),
  66        .base.base.ofuncs = &(struct nouveau_ofuncs) {
  67                .ctor = nv04_fb_ctor,
  68                .dtor = _nouveau_fb_dtor,
  69                .init = nv44_fb_init,
  70                .fini = _nouveau_fb_fini,
  71        },
  72        .base.memtype = nv04_fb_memtype_valid,
  73        .base.ram = &nv44_ram_oclass,
  74        .tile.regions = 12,
  75        .tile.init = nv44_fb_tile_init,
  76        .tile.fini = nv20_fb_tile_fini,
  77        .tile.prog = nv44_fb_tile_prog,
  78}.base.base;
  79