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 nv46_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 /* for performance, select alternate bank offset for zeta */
34 if (!(flags & 4)) tile->addr = (0 << 3);
35 else tile->addr = (1 << 3);
36
37 tile->addr |= 0x00000001; /* mode = vram */
38 tile->addr |= addr;
39 tile->limit = max(1u, addr + size) - 1;
40 tile->pitch = pitch;
41 }
42
43 static const struct nvkm_fb_func
44 nv46_fb = {
45 .init = nv44_fb_init,
46 .tile.regions = 15,
47 .tile.init = nv46_fb_tile_init,
48 .tile.fini = nv20_fb_tile_fini,
49 .tile.prog = nv44_fb_tile_prog,
50 .ram_new = nv44_ram_new,
51 };
52
53 int
54 nv46_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
55 {
56 return nvkm_fb_new_(&nv46_fb, device, index, pfb);
57 }