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
29static void
30nv44_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; /* mode = vram */
34	tile->addr |= addr;
35	tile->limit = max(1u, addr + size) - 1;
36	tile->pitch = pitch;
37}
38
39void
40nv44_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
41{
42	struct nvkm_device *device = fb->subdev.device;
43	nvkm_wr32(device, 0x100604 + (i * 0x10), tile->limit);
44	nvkm_wr32(device, 0x100608 + (i * 0x10), tile->pitch);
45	nvkm_wr32(device, 0x100600 + (i * 0x10), tile->addr);
46	nvkm_rd32(device, 0x100600 + (i * 0x10));
47}
48
49void
50nv44_fb_init(struct nvkm_fb *fb)
51{
52	struct nvkm_device *device = fb->subdev.device;
53	nvkm_wr32(device, 0x100850, 0x80000000);
54	nvkm_wr32(device, 0x100800, 0x00000001);
55}
56
57static const struct nvkm_fb_func
58nv44_fb = {
59	.init = nv44_fb_init,
60	.tile.regions = 12,
61	.tile.init = nv44_fb_tile_init,
62	.tile.fini = nv20_fb_tile_fini,
63	.tile.prog = nv44_fb_tile_prog,
64	.ram_new = nv44_ram_new,
65};
66
67int
68nv44_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
69{
70	return nvkm_fb_new_(&nv44_fb, device, type, inst, pfb);
71}
72