nv36.c revision d7da62845be013171b5a3807214bc63874d89bb3 
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 nv36_fb_priv {
30	struct nouveau_fb base;
31};
32
33static void
34nv36_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,
35		  struct nouveau_fb_tile *tile)
36{
37	u32 tiles = DIV_ROUND_UP(size, 0x40);
38	u32 tags  = round_up(tiles / pfb->ram.parts, 0x40);
39	if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {
40		if (flags & 2) tile->zcomp |= 0x10000000; /* Z16 */
41		else           tile->zcomp |= 0x20000000; /* Z24S8 */
42		tile->zcomp |= ((tile->tag->offset           ) >> 6);
43		tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 14;
44#ifdef __BIG_ENDIAN
45		tile->zcomp |= 0x80000000;
46#endif
47	}
48}
49
50static int
51nv36_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
52	     struct nouveau_oclass *oclass, void *data, u32 size,
53	     struct nouveau_object **pobject)
54{
55	struct nv36_fb_priv *priv;
56	int ret;
57
58	ret = nouveau_fb_create(parent, engine, oclass, &priv);
59	*pobject = nv_object(priv);
60	if (ret)
61		return ret;
62
63	priv->base.memtype_valid = nv04_fb_memtype_valid;
64	priv->base.ram.init = nv20_fb_vram_init;
65	priv->base.tile.regions = 8;
66	priv->base.tile.init = nv30_fb_tile_init;
67	priv->base.tile.comp = nv36_fb_tile_comp;
68	priv->base.tile.fini = nv20_fb_tile_fini;
69	priv->base.tile.prog = nv20_fb_tile_prog;
70	return nouveau_fb_preinit(&priv->base);
71}
72
73struct nouveau_oclass
74nv36_fb_oclass = {
75	.handle = NV_SUBDEV(FB, 0x36),
76	.ofuncs = &(struct nouveau_ofuncs) {
77		.ctor = nv36_fb_ctor,
78		.dtor = _nouveau_fb_dtor,
79		.init = nv30_fb_init,
80		.fini = _nouveau_fb_fini,
81	},
82};
83