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
25 #include "nv04.h"
26
27 #define NV04_PFB_CFG0 0x00100200
28
29 bool
nv04_fb_memtype_valid(struct nouveau_fb * pfb,u32 tile_flags)30 nv04_fb_memtype_valid(struct nouveau_fb *pfb, u32 tile_flags)
31 {
32 if (!(tile_flags & 0xff00))
33 return true;
34
35 return false;
36 }
37
38 static int
nv04_fb_init(struct nouveau_object * object)39 nv04_fb_init(struct nouveau_object *object)
40 {
41 struct nv04_fb_priv *priv = (void *)object;
42 int ret;
43
44 ret = nouveau_fb_init(&priv->base);
45 if (ret)
46 return ret;
47
48 /* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows
49 * nvidia reading PFB_CFG_0, then writing back its original value.
50 * (which was 0x701114 in this case)
51 */
52 nv_wr32(priv, NV04_PFB_CFG0, 0x1114);
53 return 0;
54 }
55
56 int
nv04_fb_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)57 nv04_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
58 struct nouveau_oclass *oclass, void *data, u32 size,
59 struct nouveau_object **pobject)
60 {
61 struct nv04_fb_impl *impl = (void *)oclass;
62 struct nv04_fb_priv *priv;
63 int ret;
64
65 ret = nouveau_fb_create(parent, engine, oclass, &priv);
66 *pobject = nv_object(priv);
67 if (ret)
68 return ret;
69
70 priv->base.tile.regions = impl->tile.regions;
71 priv->base.tile.init = impl->tile.init;
72 priv->base.tile.comp = impl->tile.comp;
73 priv->base.tile.fini = impl->tile.fini;
74 priv->base.tile.prog = impl->tile.prog;
75 return 0;
76 }
77
78 struct nouveau_oclass *
79 nv04_fb_oclass = &(struct nv04_fb_impl) {
80 .base.base.handle = NV_SUBDEV(FB, 0x04),
81 .base.base.ofuncs = &(struct nouveau_ofuncs) {
82 .ctor = nv04_fb_ctor,
83 .dtor = _nouveau_fb_dtor,
84 .init = nv04_fb_init,
85 .fini = _nouveau_fb_fini,
86 },
87 .base.memtype = nv04_fb_memtype_valid,
88 .base.ram = &nv04_ram_oclass,
89 }.base.base;
90