1 /* $NetBSD: nouveau_nvkm_subdev_fb_nv46.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_nv46.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $");
30
31 #include "priv.h"
32 #include "ram.h"
33
34 void
nv46_fb_tile_init(struct nvkm_fb * fb,int i,u32 addr,u32 size,u32 pitch,u32 flags,struct nvkm_fb_tile * tile)35 nv46_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 /* for performance, select alternate bank offset for zeta */
39 if (!(flags & 4)) tile->addr = (0 << 3);
40 else tile->addr = (1 << 3);
41
42 tile->addr |= 0x00000001; /* mode = vram */
43 tile->addr |= addr;
44 tile->limit = max(1u, addr + size) - 1;
45 tile->pitch = pitch;
46 }
47
48 static const struct nvkm_fb_func
49 nv46_fb = {
50 .init = nv44_fb_init,
51 .tile.regions = 15,
52 .tile.init = nv46_fb_tile_init,
53 .tile.fini = nv20_fb_tile_fini,
54 .tile.prog = nv44_fb_tile_prog,
55 .ram_new = nv44_ram_new,
56 };
57
58 int
nv46_fb_new(struct nvkm_device * device,int index,struct nvkm_fb ** pfb)59 nv46_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
60 {
61 return nvkm_fb_new_(&nv46_fb, device, index, pfb);
62 }
63