drivers/gpu/drm/nouveau/core/subdev/fb/nv46.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 <subdev/fb.h>
  28
  29 struct nv46_fb_priv {
  30         struct nouveau_fb base;
  31 };
  32
  33 static int
  34 nv46_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
  35              struct nouveau_oclass *oclass, void *data, u32 size,
  36              struct nouveau_object **pobject)
  37 {
  38         struct nouveau_device *device = nv_device(parent);
  39         struct nv46_fb_priv *priv;
  40         u32 pfb474;
  41         int ret;
  42
  43         ret = nouveau_fb_create(parent, engine, oclass, &priv);
  44         *pobject = nv_object(priv);
  45         if (ret)
  46                 return ret;
  47
  48         pfb474 = nv_rd32(priv, 0x100474);
  49         if (pfb474 & 0x00000004)
  50                 priv->base.ram.type = NV_MEM_TYPE_GDDR3;
  51         if (pfb474 & 0x00000002)
  52                 priv->base.ram.type = NV_MEM_TYPE_DDR2;
  53         if (pfb474 & 0x00000001)
  54                 priv->base.ram.type = NV_MEM_TYPE_DDR1;
  55
  56         priv->base.ram.size = nv_rd32(priv, 0x10020c) & 0xff000000;
  57
  58         priv->base.memtype_valid = nv04_fb_memtype_valid;
  59         priv->base.tile.regions = 15;
  60         priv->base.tile.init = nv30_fb_tile_init;
  61         priv->base.tile.fini = nv30_fb_tile_fini;
  62         priv->base.tile.prog = nv41_fb_tile_prog;
  63         return nouveau_fb_created(&priv->base);
  64 }
  65
  66
  67 struct nouveau_oclass
  68 nv46_fb_oclass = {
  69         .handle = NV_SUBDEV(FB, 0x46),
  70         .ofuncs = &(struct nouveau_ofuncs) {
  71                 .ctor = nv46_fb_ctor,
  72                 .dtor = _nouveau_fb_dtor,
  73                 .init = nv44_fb_init,
  74                 .fini = _nouveau_fb_fini,
  75         },
  76 };