1 /* $NetBSD: nouveau_nvkm_subdev_fb_nv40.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_nv40.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $");
30
31 #include "priv.h"
32 #include "ram.h"
33
34 void
nv40_fb_tile_comp(struct nvkm_fb * fb,int i,u32 size,u32 flags,struct nvkm_fb_tile * tile)35 nv40_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,
36 struct nvkm_fb_tile *tile)
37 {
38 u32 tiles = DIV_ROUND_UP(size, 0x80);
39 u32 tags = round_up(tiles / fb->ram->parts, 0x100);
40 if ( (flags & 2) &&
41 !nvkm_mm_head(&fb->tags, 0, 1, tags, tags, 1, &tile->tag)) {
42 tile->zcomp = 0x28000000; /* Z24S8_SPLIT_GRAD */
43 tile->zcomp |= ((tile->tag->offset ) >> 8);
44 tile->zcomp |= ((tile->tag->offset + tags - 1) >> 8) << 13;
45 #ifdef __BIG_ENDIAN
46 tile->zcomp |= 0x40000000;
47 #endif
48 }
49 }
50
51 static void
nv40_fb_init(struct nvkm_fb * fb)52 nv40_fb_init(struct nvkm_fb *fb)
53 {
54 nvkm_mask(fb->subdev.device, 0x10033c, 0x00008000, 0x00000000);
55 }
56
57 static const struct nvkm_fb_func
58 nv40_fb = {
59 .tags = nv20_fb_tags,
60 .init = nv40_fb_init,
61 .tile.regions = 8,
62 .tile.init = nv30_fb_tile_init,
63 .tile.comp = nv40_fb_tile_comp,
64 .tile.fini = nv20_fb_tile_fini,
65 .tile.prog = nv20_fb_tile_prog,
66 .ram_new = nv40_ram_new,
67 };
68
69 int
nv40_fb_new(struct nvkm_device * device,int index,struct nvkm_fb ** pfb)70 nv40_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
71 {
72 return nvkm_fb_new_(&nv40_fb, device, index, pfb);
73 }
74