nv49.c revision dac1558d49d0a9f932babd66144459ef3dd5dfa9 
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
29struct nv49_fb_priv {
30	struct nouveau_fb base;
31};
32
33static int
34nv49_fb_vram_init(struct nouveau_fb *pfb)
35{
36	u32 pfb914 = nv_rd32(pfb, 0x100914);
37
38	switch (pfb914 & 0x00000003) {
39	case 0x00000000: pfb->ram.type = NV_MEM_TYPE_DDR1; break;
40	case 0x00000001: pfb->ram.type = NV_MEM_TYPE_DDR2; break;
41	case 0x00000002: pfb->ram.type = NV_MEM_TYPE_GDDR3; break;
42	case 0x00000003: break;
43	}
44
45	pfb->ram.size = nv_rd32(pfb, 0x10020c) & 0xff000000;
46	return nv_rd32(pfb, 0x100320);
47}
48
49static int
50nv49_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
51	     struct nouveau_oclass *oclass, void *data, u32 size,
52	     struct nouveau_object **pobject)
53{
54	struct nv49_fb_priv *priv;
55	int ret;
56
57	ret = nouveau_fb_create(parent, engine, oclass, &priv);
58	*pobject = nv_object(priv);
59	if (ret)
60		return ret;
61
62	priv->base.memtype_valid = nv04_fb_memtype_valid;
63	priv->base.ram.init = nv49_fb_vram_init;
64	priv->base.tile.regions = 15;
65	priv->base.tile.init = nv30_fb_tile_init;
66	priv->base.tile.fini = nv30_fb_tile_fini;
67	priv->base.tile.prog = nv41_fb_tile_prog;
68
69	return nouveau_fb_preinit(&priv->base);
70}
71
72
73struct nouveau_oclass
74nv49_fb_oclass = {
75	.handle = NV_SUBDEV(FB, 0x49),
76	.ofuncs = &(struct nouveau_ofuncs) {
77		.ctor = nv49_fb_ctor,
78		.dtor = _nouveau_fb_dtor,
79		.init = nv41_fb_init,
80		.fini = _nouveau_fb_fini,
81	},
82};
83