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#include "nv04.h"
27
28static void
29nv36_fb_tile_comp(struct nvkm_fb *pfb, int i, u32 size, u32 flags,
30		  struct nvkm_fb_tile *tile)
31{
32	u32 tiles = DIV_ROUND_UP(size, 0x40);
33	u32 tags  = round_up(tiles / pfb->ram->parts, 0x40);
34	if (!nvkm_mm_head(&pfb->tags, 0, 1, tags, tags, 1, &tile->tag)) {
35		if (flags & 2) tile->zcomp |= 0x10000000; /* Z16 */
36		else           tile->zcomp |= 0x20000000; /* Z24S8 */
37		tile->zcomp |= ((tile->tag->offset           ) >> 6);
38		tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 14;
39#ifdef __BIG_ENDIAN
40		tile->zcomp |= 0x80000000;
41#endif
42	}
43}
44
45struct nvkm_oclass *
46nv36_fb_oclass = &(struct nv04_fb_impl) {
47	.base.base.handle = NV_SUBDEV(FB, 0x36),
48	.base.base.ofuncs = &(struct nvkm_ofuncs) {
49		.ctor = nv04_fb_ctor,
50		.dtor = _nvkm_fb_dtor,
51		.init = nv30_fb_init,
52		.fini = _nvkm_fb_fini,
53	},
54	.base.memtype = nv04_fb_memtype_valid,
55	.base.ram = &nv20_ram_oclass,
56	.tile.regions = 8,
57	.tile.init = nv30_fb_tile_init,
58	.tile.comp = nv36_fb_tile_comp,
59	.tile.fini = nv20_fb_tile_fini,
60	.tile.prog = nv20_fb_tile_prog,
61}.base.base;
62