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 
28 void
29 nv40_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,
30 		  struct nvkm_fb_tile *tile)
31 {
32 	u32 tiles = DIV_ROUND_UP(size, 0x80);
33 	u32 tags  = round_up(tiles / fb->ram->parts, 0x100);
34 	if ( (flags & 2) &&
35 	    !nvkm_mm_head(&fb->tags, 0, 1, tags, tags, 1, &tile->tag)) {
36 		tile->zcomp  = 0x28000000; /* Z24S8_SPLIT_GRAD */
37 		tile->zcomp |= ((tile->tag->offset           ) >> 8);
38 		tile->zcomp |= ((tile->tag->offset + tags - 1) >> 8) << 13;
39 #ifdef __BIG_ENDIAN
40 		tile->zcomp |= 0x40000000;
41 #endif
42 	}
43 }
44 
45 static int
46 nv40_fb_init(struct nvkm_object *object)
47 {
48 	struct nvkm_fb *fb = (void *)object;
49 	int ret;
50 
51 	ret = nvkm_fb_init(fb);
52 	if (ret)
53 		return ret;
54 
55 	nv_mask(fb, 0x10033c, 0x00008000, 0x00000000);
56 	return 0;
57 }
58 
59 struct nvkm_oclass *
60 nv40_fb_oclass = &(struct nv04_fb_impl) {
61 	.base.base.handle = NV_SUBDEV(FB, 0x40),
62 	.base.base.ofuncs = &(struct nvkm_ofuncs) {
63 		.ctor = nv04_fb_ctor,
64 		.dtor = _nvkm_fb_dtor,
65 		.init = nv40_fb_init,
66 		.fini = _nvkm_fb_fini,
67 	},
68 	.base.memtype = nv04_fb_memtype_valid,
69 	.base.ram = &nv40_ram_oclass,
70 	.tile.regions = 8,
71 	.tile.init = nv30_fb_tile_init,
72 	.tile.comp = nv40_fb_tile_comp,
73 	.tile.fini = nv20_fb_tile_fini,
74 	.tile.prog = nv20_fb_tile_prog,
75 }.base.base;
76