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 void
30 nv40_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, 0x80);
34 u32 tags = round_up(tiles / fb->ram->parts, 0x100);
35 if ( (flags & 2) &&
36 !nvkm_mm_head(&fb->tags, 0, 1, tags, tags, 1, &tile->tag)) {
37 tile->zcomp = 0x28000000; /* Z24S8_SPLIT_GRAD */
38 tile->zcomp |= ((tile->tag->offset ) >> 8);
39 tile->zcomp |= ((tile->tag->offset + tags - 1) >> 8) << 13;
40 #ifdef __BIG_ENDIAN
41 tile->zcomp |= 0x40000000;
42 #endif
43 }
44 }
45
46 static void
47 nv40_fb_init(struct nvkm_fb *fb)
48 {
49 nvkm_mask(fb->subdev.device, 0x10033c, 0x00008000, 0x00000000);
50 }
51
52 static const struct nvkm_fb_func
53 nv40_fb = {
54 .tags = nv20_fb_tags,
55 .init = nv40_fb_init,
56 .tile.regions = 8,
57 .tile.init = nv30_fb_tile_init,
58 .tile.comp = nv40_fb_tile_comp,
59 .tile.fini = nv20_fb_tile_fini,
60 .tile.prog = nv20_fb_tile_prog,
61 .ram_new = nv40_ram_new,
62 };
63
64 int
65 nv40_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
66 {
67 return nvkm_fb_new_(&nv40_fb, device, index, pfb);
68 }