1/*
2 * Copyright 2012 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24#include "priv.h"
25#include "ram.h"
26#include "regsnv04.h"
27
28bool
29nv04_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags)
30{
31	if (!(tile_flags & 0xff00))
32		return true;
33	return false;
34}
35
36static void
37nv04_fb_init(struct nvkm_fb *fb)
38{
39	struct nvkm_device *device = fb->subdev.device;
40
41	/* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows
42	 * nvidia reading PFB_CFG_0, then writing back its original value.
43	 * (which was 0x701114 in this case)
44	 */
45	nvkm_wr32(device, NV04_PFB_CFG0, 0x1114);
46}
47
48static const struct nvkm_fb_func
49nv04_fb = {
50	.init = nv04_fb_init,
51	.ram_new = nv04_ram_new,
52	.memtype_valid = nv04_fb_memtype_valid,
53};
54
55int
56nv04_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
57{
58	return nvkm_fb_new_(&nv04_fb, device, index, pfb);
59}
60