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nv40.c
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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 <core/os.h>
26 #include <core/class.h>
27 #include <core/engctx.h>
28 
29 #include <subdev/fb.h>
30 #include <subdev/timer.h>
31 #include <subdev/instmem.h>
32 
33 #include <engine/mpeg.h>
34 #include <engine/graph/nv40.h>
35 
36 struct nv40_mpeg_priv {
37  struct nouveau_mpeg base;
38 };
39 
40 struct nv40_mpeg_chan {
41  struct nouveau_mpeg_chan base;
42 };
43 
44 /*******************************************************************************
45  * PMPEG context
46  ******************************************************************************/
47 
48 static int
49 nv40_mpeg_context_ctor(struct nouveau_object *parent,
50  struct nouveau_object *engine,
51  struct nouveau_oclass *oclass, void *data, u32 size,
52  struct nouveau_object **pobject)
53 {
54  struct nv40_mpeg_chan *chan;
55  int ret;
56 
57  ret = nouveau_mpeg_context_create(parent, engine, oclass, NULL,
58  264 * 4, 16,
59  NVOBJ_FLAG_ZERO_ALLOC, &chan);
60  *pobject = nv_object(chan);
61  if (ret)
62  return ret;
63 
64  return 0;
65 }
66 
67 static int
68 nv40_mpeg_context_fini(struct nouveau_object *object, bool suspend)
69 {
70 
71  struct nv40_mpeg_priv *priv = (void *)object->engine;
72  struct nv40_mpeg_chan *chan = (void *)object;
73  u32 inst = 0x80000000 | nv_gpuobj(chan)->addr >> 4;
74 
75  nv_mask(priv, 0x00b32c, 0x00000001, 0x00000000);
76  if (nv_rd32(priv, 0x00b318) == inst)
77  nv_mask(priv, 0x00b318, 0x80000000, 0x00000000);
78  nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);
79  return 0;
80 }
81 
82 static struct nouveau_oclass
83 nv40_mpeg_cclass = {
84  .handle = NV_ENGCTX(MPEG, 0x40),
85  .ofuncs = &(struct nouveau_ofuncs) {
86  .ctor = nv40_mpeg_context_ctor,
87  .dtor = _nouveau_mpeg_context_dtor,
88  .init = _nouveau_mpeg_context_init,
89  .fini = nv40_mpeg_context_fini,
90  .rd32 = _nouveau_mpeg_context_rd32,
91  .wr32 = _nouveau_mpeg_context_wr32,
92  },
93 };
94 
95 /*******************************************************************************
96  * PMPEG engine/subdev functions
97  ******************************************************************************/
98 
99 static void
100 nv40_mpeg_intr(struct nouveau_subdev *subdev)
101 {
102  struct nv40_mpeg_priv *priv = (void *)subdev;
103  u32 stat;
104 
105  if ((stat = nv_rd32(priv, 0x00b100)))
106  nv31_mpeg_intr(subdev);
107 
108  if ((stat = nv_rd32(priv, 0x00b800))) {
109  nv_error(priv, "PMSRCH 0x%08x\n", stat);
110  nv_wr32(priv, 0x00b800, stat);
111  }
112 }
113 
114 static int
115 nv40_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
116  struct nouveau_oclass *oclass, void *data, u32 size,
117  struct nouveau_object **pobject)
118 {
119  struct nv40_mpeg_priv *priv;
120  int ret;
121 
122  ret = nouveau_mpeg_create(parent, engine, oclass, &priv);
123  *pobject = nv_object(priv);
124  if (ret)
125  return ret;
126 
127  nv_subdev(priv)->unit = 0x00000002;
128  nv_subdev(priv)->intr = nv40_mpeg_intr;
129  nv_engine(priv)->cclass = &nv40_mpeg_cclass;
130  nv_engine(priv)->sclass = nv31_mpeg_sclass;
131  nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog;
132  return 0;
133 }
134 
135 struct nouveau_oclass
136 nv40_mpeg_oclass = {
137  .handle = NV_ENGINE(MPEG, 0x40),
138  .ofuncs = &(struct nouveau_ofuncs) {
139  .ctor = nv40_mpeg_ctor,
140  .dtor = _nouveau_mpeg_dtor,
141  .init = nv31_mpeg_init,
142  .fini = _nouveau_mpeg_fini,
143  },
144 };
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