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 static void
nv44_fb_tile_init(struct nvkm_fb * fb,int i,u32 addr,u32 size,u32 pitch,u32 flags,struct nvkm_fb_tile * tile)30 nv44_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
39 void
nv44_fb_tile_prog(struct nvkm_fb * fb,int i,struct nvkm_fb_tile * tile)40 nv44_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
49 void
nv44_fb_init(struct nvkm_fb * fb)50 nv44_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
57 static const struct nvkm_fb_func
58 nv44_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
67 int
nv44_fb_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_fb ** pfb)68 nv44_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