Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / engine / mpeg / nv44.c
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 <engine/mpeg.h>
25
26 #include <core/client.h>
27 #include <core/handle.h>
28 #include <engine/fifo.h>
29
30 struct nv44_mpeg_priv {
31         struct nvkm_mpeg base;
32 };
33
34 struct nv44_mpeg_chan {
35         struct nvkm_mpeg_chan base;
36 };
37
38 /*******************************************************************************
39  * PMPEG context
40  ******************************************************************************/
41
42 static int
43 nv44_mpeg_context_ctor(struct nvkm_object *parent,
44                        struct nvkm_object *engine,
45                        struct nvkm_oclass *oclass, void *data, u32 size,
46                        struct nvkm_object **pobject)
47 {
48         struct nv44_mpeg_chan *chan;
49         int ret;
50
51         ret = nvkm_mpeg_context_create(parent, engine, oclass, NULL, 264 * 4,
52                                        16, NVOBJ_FLAG_ZERO_ALLOC, &chan);
53         *pobject = nv_object(chan);
54         if (ret)
55                 return ret;
56
57         nv_wo32(&chan->base.base, 0x78, 0x02001ec1);
58         return 0;
59 }
60
61 static int
62 nv44_mpeg_context_fini(struct nvkm_object *object, bool suspend)
63 {
64
65         struct nv44_mpeg_priv *priv = (void *)object->engine;
66         struct nv44_mpeg_chan *chan = (void *)object;
67         u32 inst = 0x80000000 | nv_gpuobj(chan)->addr >> 4;
68
69         nv_mask(priv, 0x00b32c, 0x00000001, 0x00000000);
70         if (nv_rd32(priv, 0x00b318) == inst)
71                 nv_mask(priv, 0x00b318, 0x80000000, 0x00000000);
72         nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);
73         return 0;
74 }
75
76 static struct nvkm_oclass
77 nv44_mpeg_cclass = {
78         .handle = NV_ENGCTX(MPEG, 0x44),
79         .ofuncs = &(struct nvkm_ofuncs) {
80                 .ctor = nv44_mpeg_context_ctor,
81                 .dtor = _nvkm_mpeg_context_dtor,
82                 .init = _nvkm_mpeg_context_init,
83                 .fini = nv44_mpeg_context_fini,
84                 .rd32 = _nvkm_mpeg_context_rd32,
85                 .wr32 = _nvkm_mpeg_context_wr32,
86         },
87 };
88
89 /*******************************************************************************
90  * PMPEG engine/subdev functions
91  ******************************************************************************/
92
93 static void
94 nv44_mpeg_intr(struct nvkm_subdev *subdev)
95 {
96         struct nvkm_fifo *pfifo = nvkm_fifo(subdev);
97         struct nvkm_engine *engine = nv_engine(subdev);
98         struct nvkm_object *engctx;
99         struct nvkm_handle *handle;
100         struct nv44_mpeg_priv *priv = (void *)subdev;
101         u32 inst = nv_rd32(priv, 0x00b318) & 0x000fffff;
102         u32 stat = nv_rd32(priv, 0x00b100);
103         u32 type = nv_rd32(priv, 0x00b230);
104         u32 mthd = nv_rd32(priv, 0x00b234);
105         u32 data = nv_rd32(priv, 0x00b238);
106         u32 show = stat;
107         int chid;
108
109         engctx = nvkm_engctx_get(engine, inst);
110         chid   = pfifo->chid(pfifo, engctx);
111
112         if (stat & 0x01000000) {
113                 /* happens on initial binding of the object */
114                 if (type == 0x00000020 && mthd == 0x0000) {
115                         nv_mask(priv, 0x00b308, 0x00000000, 0x00000000);
116                         show &= ~0x01000000;
117                 }
118
119                 if (type == 0x00000010) {
120                         handle = nvkm_handle_get_class(engctx, 0x3174);
121                         if (handle && !nv_call(handle->object, mthd, data))
122                                 show &= ~0x01000000;
123                         nvkm_handle_put(handle);
124                 }
125         }
126
127         nv_wr32(priv, 0x00b100, stat);
128         nv_wr32(priv, 0x00b230, 0x00000001);
129
130         if (show) {
131                 nv_error(priv,
132                          "ch %d [0x%08x %s] 0x%08x 0x%08x 0x%08x 0x%08x\n",
133                          chid, inst << 4, nvkm_client_name(engctx), stat,
134                          type, mthd, data);
135         }
136
137         nvkm_engctx_put(engctx);
138 }
139
140 static void
141 nv44_mpeg_me_intr(struct nvkm_subdev *subdev)
142 {
143         struct nv44_mpeg_priv *priv = (void *)subdev;
144         u32 stat;
145
146         if ((stat = nv_rd32(priv, 0x00b100)))
147                 nv44_mpeg_intr(subdev);
148
149         if ((stat = nv_rd32(priv, 0x00b800))) {
150                 nv_error(priv, "PMSRCH 0x%08x\n", stat);
151                 nv_wr32(priv, 0x00b800, stat);
152         }
153 }
154
155 static int
156 nv44_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
157                struct nvkm_oclass *oclass, void *data, u32 size,
158                struct nvkm_object **pobject)
159 {
160         struct nv44_mpeg_priv *priv;
161         int ret;
162
163         ret = nvkm_mpeg_create(parent, engine, oclass, &priv);
164         *pobject = nv_object(priv);
165         if (ret)
166                 return ret;
167
168         nv_subdev(priv)->unit = 0x00000002;
169         nv_subdev(priv)->intr = nv44_mpeg_me_intr;
170         nv_engine(priv)->cclass = &nv44_mpeg_cclass;
171         nv_engine(priv)->sclass = nv40_mpeg_sclass;
172         nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog;
173         return 0;
174 }
175
176 struct nvkm_oclass
177 nv44_mpeg_oclass = {
178         .handle = NV_ENGINE(MPEG, 0x44),
179         .ofuncs = &(struct nvkm_ofuncs) {
180                 .ctor = nv44_mpeg_ctor,
181                 .dtor = _nvkm_mpeg_dtor,
182                 .init = nv31_mpeg_init,
183                 .fini = _nvkm_mpeg_fini,
184         },
185 };