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
nv20_fb_tile_init(struct nvkm_fb * fb,int i,u32 addr,u32 size,u32 pitch,u32 flags,struct nvkm_fb_tile * tile)30 nv20_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch,
31 u32 flags, struct nvkm_fb_tile *tile)
32 {
33 tile->addr = 0x00000001 | addr;
34 tile->limit = max(1u, addr + size) - 1;
35 tile->pitch = pitch;
36 if (flags & 4) {
37 fb->func->tile.comp(fb, i, size, flags, tile);
38 tile->addr |= 2;
39 }
40 }
41
42 static void
nv20_fb_tile_comp(struct nvkm_fb * fb,int i,u32 size,u32 flags,struct nvkm_fb_tile * tile)43 nv20_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,
44 struct nvkm_fb_tile *tile)
45 {
46 u32 tiles = DIV_ROUND_UP(size, 0x40);
47 u32 tags = round_up(tiles / fb->ram->parts, 0x40);
48 if (!nvkm_mm_head(&fb->tags, 0, 1, tags, tags, 1, &tile->tag)) {
49 if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */
50 else tile->zcomp = 0x04000000; /* Z24S8 */
51 tile->zcomp |= tile->tag->offset;
52 tile->zcomp |= 0x80000000; /* enable */
53 #ifdef __BIG_ENDIAN
54 tile->zcomp |= 0x08000000;
55 #endif
56 }
57 }
58
59 void
nv20_fb_tile_fini(struct nvkm_fb * fb,int i,struct nvkm_fb_tile * tile)60 nv20_fb_tile_fini(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
61 {
62 tile->addr = 0;
63 tile->limit = 0;
64 tile->pitch = 0;
65 tile->zcomp = 0;
66 nvkm_mm_free(&fb->tags, &tile->tag);
67 }
68
69 void
nv20_fb_tile_prog(struct nvkm_fb * fb,int i,struct nvkm_fb_tile * tile)70 nv20_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
71 {
72 struct nvkm_device *device = fb->subdev.device;
73 nvkm_wr32(device, 0x100244 + (i * 0x10), tile->limit);
74 nvkm_wr32(device, 0x100248 + (i * 0x10), tile->pitch);
75 nvkm_wr32(device, 0x100240 + (i * 0x10), tile->addr);
76 nvkm_rd32(device, 0x100240 + (i * 0x10));
77 nvkm_wr32(device, 0x100300 + (i * 0x04), tile->zcomp);
78 }
79
80 u32
nv20_fb_tags(struct nvkm_fb * fb)81 nv20_fb_tags(struct nvkm_fb *fb)
82 {
83 const u32 tags = nvkm_rd32(fb->subdev.device, 0x100320);
84 return tags ? tags + 1 : 0;
85 }
86
87 static const struct nvkm_fb_func
88 nv20_fb = {
89 .tags = nv20_fb_tags,
90 .tile.regions = 8,
91 .tile.init = nv20_fb_tile_init,
92 .tile.comp = nv20_fb_tile_comp,
93 .tile.fini = nv20_fb_tile_fini,
94 .tile.prog = nv20_fb_tile_prog,
95 .ram_new = nv20_ram_new,
96 };
97
98 int
nv20_fb_new(struct nvkm_device * device,int index,struct nvkm_fb ** pfb)99 nv20_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
100 {
101 return nvkm_fb_new_(&nv20_fb, device, index, pfb);
102 }
103
