1 /* $NetBSD: nouveau_nvkm_subdev_fb_nv44.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $ */
2
3 /*
4 * Copyright (C) 2010 Francisco Jerez.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial
17 * portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 */
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_fb_nv44.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $");
30
31 #include "priv.h"
32 #include "ram.h"
33
34 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)35 nv44_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch,
36 u32 flags, struct nvkm_fb_tile *tile)
37 {
38 tile->addr = 0x00000001; /* mode = vram */
39 tile->addr |= addr;
40 tile->limit = max(1u, addr + size) - 1;
41 tile->pitch = pitch;
42 }
43
44 void
nv44_fb_tile_prog(struct nvkm_fb * fb,int i,struct nvkm_fb_tile * tile)45 nv44_fb_tile_prog(struct nvkm_fb *fb, int i, struct nvkm_fb_tile *tile)
46 {
47 struct nvkm_device *device = fb->subdev.device;
48 nvkm_wr32(device, 0x100604 + (i * 0x10), tile->limit);
49 nvkm_wr32(device, 0x100608 + (i * 0x10), tile->pitch);
50 nvkm_wr32(device, 0x100600 + (i * 0x10), tile->addr);
51 nvkm_rd32(device, 0x100600 + (i * 0x10));
52 }
53
54 void
nv44_fb_init(struct nvkm_fb * fb)55 nv44_fb_init(struct nvkm_fb *fb)
56 {
57 struct nvkm_device *device = fb->subdev.device;
58 nvkm_wr32(device, 0x100850, 0x80000000);
59 nvkm_wr32(device, 0x100800, 0x00000001);
60 }
61
62 static const struct nvkm_fb_func
63 nv44_fb = {
64 .init = nv44_fb_init,
65 .tile.regions = 12,
66 .tile.init = nv44_fb_tile_init,
67 .tile.fini = nv20_fb_tile_fini,
68 .tile.prog = nv44_fb_tile_prog,
69 .ram_new = nv44_ram_new,
70 };
71
72 int
nv44_fb_new(struct nvkm_device * device,int index,struct nvkm_fb ** pfb)73 nv44_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
74 {
75 return nvkm_fb_new_(&nv44_fb, device, index, pfb);
76 }
77