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 "priv.h"
27 #include "ram.h"
28
29 static void
30 nv36_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,
31 struct nvkm_fb_tile *tile)
32 {
33 u32 tiles = DIV_ROUND_UP(size, 0x40);
34 u32 tags = round_up(tiles / fb->ram->parts, 0x40);
35 if (!nvkm_mm_head(&fb->tags, 0, 1, tags, tags, 1, &tile->tag)) {
36 if (flags & 2) tile->zcomp |= 0x10000000; /* Z16 */
37 else tile->zcomp |= 0x20000000; /* Z24S8 */
38 tile->zcomp |= ((tile->tag->offset ) >> 6);
39 tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 14;
40 #ifdef __BIG_ENDIAN
41 tile->zcomp |= 0x80000000;
42 #endif
43 }
44 }
45
46 static const struct nvkm_fb_func
47 nv36_fb = {
48 .tags = nv20_fb_tags,
49 .init = nv30_fb_init,
50 .tile.regions = 8,
51 .tile.init = nv30_fb_tile_init,
52 .tile.comp = nv36_fb_tile_comp,
53 .tile.fini = nv20_fb_tile_fini,
54 .tile.prog = nv20_fb_tile_prog,
55 .ram_new = nv20_ram_new,
56 };
57
58 int
59 nv36_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
60 {
61 return nvkm_fb_new_(&nv36_fb, device, index, pfb);
62 }