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 "nv04.h"
25#include "regsnv04.h"
26
27bool
28nv04_fb_memtype_valid(struct nvkm_fb *pfb, u32 tile_flags)
29{
30	if (!(tile_flags & 0xff00))
31		return true;
32
33	return false;
34}
35
36static int
37nv04_fb_init(struct nvkm_object *object)
38{
39	struct nv04_fb_priv *priv = (void *)object;
40	int ret;
41
42	ret = nvkm_fb_init(&priv->base);
43	if (ret)
44		return ret;
45
46	/* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows
47	 * nvidia reading PFB_CFG_0, then writing back its original value.
48	 * (which was 0x701114 in this case)
49	 */
50	nv_wr32(priv, NV04_PFB_CFG0, 0x1114);
51	return 0;
52}
53
54int
55nv04_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
56	     struct nvkm_oclass *oclass, void *data, u32 size,
57	     struct nvkm_object **pobject)
58{
59	struct nv04_fb_impl *impl = (void *)oclass;
60	struct nv04_fb_priv *priv;
61	int ret;
62
63	ret = nvkm_fb_create(parent, engine, oclass, &priv);
64	*pobject = nv_object(priv);
65	if (ret)
66		return ret;
67
68	priv->base.tile.regions = impl->tile.regions;
69	priv->base.tile.init = impl->tile.init;
70	priv->base.tile.comp = impl->tile.comp;
71	priv->base.tile.fini = impl->tile.fini;
72	priv->base.tile.prog = impl->tile.prog;
73	return 0;
74}
75
76struct nvkm_oclass *
77nv04_fb_oclass = &(struct nv04_fb_impl) {
78	.base.base.handle = NV_SUBDEV(FB, 0x04),
79	.base.base.ofuncs = &(struct nvkm_ofuncs) {
80		.ctor = nv04_fb_ctor,
81		.dtor = _nvkm_fb_dtor,
82		.init = nv04_fb_init,
83		.fini = _nvkm_fb_fini,
84	},
85	.base.memtype = nv04_fb_memtype_valid,
86	.base.ram = &nv04_ram_oclass,
87}.base.base;
88