ASoC: fsl: Add S/PDIF CPU DAI driver
[deliverable/linux.git] / drivers / gpu / drm / nouveau / core / engine / mpeg / nv31.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
25 #include <core/client.h>
26 #include <core/os.h>
27 #include <core/class.h>
28 #include <core/engctx.h>
29 #include <core/handle.h>
30
31 #include <subdev/fb.h>
32 #include <subdev/timer.h>
33 #include <subdev/instmem.h>
34
35 #include <engine/fifo.h>
36 #include <engine/mpeg.h>
37 #include <engine/graph/nv40.h>
38
39 struct nv31_mpeg_priv {
40 struct nouveau_mpeg base;
41 atomic_t refcount;
42 };
43
44 struct nv31_mpeg_chan {
45 struct nouveau_object base;
46 };
47
48 /*******************************************************************************
49 * MPEG object classes
50 ******************************************************************************/
51
52 static int
53 nv31_mpeg_object_ctor(struct nouveau_object *parent,
54 struct nouveau_object *engine,
55 struct nouveau_oclass *oclass, void *data, u32 size,
56 struct nouveau_object **pobject)
57 {
58 struct nouveau_gpuobj *obj;
59 int ret;
60
61 ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent,
62 20, 16, 0, &obj);
63 *pobject = nv_object(obj);
64 if (ret)
65 return ret;
66
67 nv_wo32(obj, 0x00, nv_mclass(obj));
68 nv_wo32(obj, 0x04, 0x00000000);
69 nv_wo32(obj, 0x08, 0x00000000);
70 nv_wo32(obj, 0x0c, 0x00000000);
71 return 0;
72 }
73
74 static int
75 nv31_mpeg_mthd_dma(struct nouveau_object *object, u32 mthd, void *arg, u32 len)
76 {
77 struct nouveau_instmem *imem = nouveau_instmem(object);
78 struct nv31_mpeg_priv *priv = (void *)object->engine;
79 u32 inst = *(u32 *)arg << 4;
80 u32 dma0 = nv_ro32(imem, inst + 0);
81 u32 dma1 = nv_ro32(imem, inst + 4);
82 u32 dma2 = nv_ro32(imem, inst + 8);
83 u32 base = (dma2 & 0xfffff000) | (dma0 >> 20);
84 u32 size = dma1 + 1;
85
86 /* only allow linear DMA objects */
87 if (!(dma0 & 0x00002000))
88 return -EINVAL;
89
90 if (mthd == 0x0190) {
91 /* DMA_CMD */
92 nv_mask(priv, 0x00b300, 0x00030000, (dma0 & 0x00030000));
93 nv_wr32(priv, 0x00b334, base);
94 nv_wr32(priv, 0x00b324, size);
95 } else
96 if (mthd == 0x01a0) {
97 /* DMA_DATA */
98 nv_mask(priv, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2);
99 nv_wr32(priv, 0x00b360, base);
100 nv_wr32(priv, 0x00b364, size);
101 } else {
102 /* DMA_IMAGE, VRAM only */
103 if (dma0 & 0x000c0000)
104 return -EINVAL;
105
106 nv_wr32(priv, 0x00b370, base);
107 nv_wr32(priv, 0x00b374, size);
108 }
109
110 return 0;
111 }
112
113 static struct nouveau_ofuncs
114 nv31_mpeg_ofuncs = {
115 .ctor = nv31_mpeg_object_ctor,
116 .dtor = _nouveau_gpuobj_dtor,
117 .init = _nouveau_gpuobj_init,
118 .fini = _nouveau_gpuobj_fini,
119 .rd32 = _nouveau_gpuobj_rd32,
120 .wr32 = _nouveau_gpuobj_wr32,
121 };
122
123 static struct nouveau_omthds
124 nv31_mpeg_omthds[] = {
125 { 0x0190, 0x0190, nv31_mpeg_mthd_dma },
126 { 0x01a0, 0x01a0, nv31_mpeg_mthd_dma },
127 { 0x01b0, 0x01b0, nv31_mpeg_mthd_dma },
128 {}
129 };
130
131 struct nouveau_oclass
132 nv31_mpeg_sclass[] = {
133 { 0x3174, &nv31_mpeg_ofuncs, nv31_mpeg_omthds },
134 {}
135 };
136
137 /*******************************************************************************
138 * PMPEG context
139 ******************************************************************************/
140
141 static int
142 nv31_mpeg_context_ctor(struct nouveau_object *parent,
143 struct nouveau_object *engine,
144 struct nouveau_oclass *oclass, void *data, u32 size,
145 struct nouveau_object **pobject)
146 {
147 struct nv31_mpeg_priv *priv = (void *)engine;
148 struct nv31_mpeg_chan *chan;
149 int ret;
150
151 if (!atomic_add_unless(&priv->refcount, 1, 1))
152 return -EBUSY;
153
154 ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
155 *pobject = nv_object(chan);
156 if (ret)
157 return ret;
158
159 return 0;
160 }
161
162 static void
163 nv31_mpeg_context_dtor(struct nouveau_object *object)
164 {
165 struct nv31_mpeg_priv *priv = (void *)object->engine;
166 struct nv31_mpeg_chan *chan = (void *)object;
167 atomic_dec(&priv->refcount);
168 nouveau_object_destroy(&chan->base);
169 }
170
171 static struct nouveau_oclass
172 nv31_mpeg_cclass = {
173 .handle = NV_ENGCTX(MPEG, 0x31),
174 .ofuncs = &(struct nouveau_ofuncs) {
175 .ctor = nv31_mpeg_context_ctor,
176 .dtor = nv31_mpeg_context_dtor,
177 .init = nouveau_object_init,
178 .fini = nouveau_object_fini,
179 },
180 };
181
182 /*******************************************************************************
183 * PMPEG engine/subdev functions
184 ******************************************************************************/
185
186 void
187 nv31_mpeg_tile_prog(struct nouveau_engine *engine, int i)
188 {
189 struct nouveau_fb_tile *tile = &nouveau_fb(engine)->tile.region[i];
190 struct nv31_mpeg_priv *priv = (void *)engine;
191
192 nv_wr32(priv, 0x00b008 + (i * 0x10), tile->pitch);
193 nv_wr32(priv, 0x00b004 + (i * 0x10), tile->limit);
194 nv_wr32(priv, 0x00b000 + (i * 0x10), tile->addr);
195 }
196
197 void
198 nv31_mpeg_intr(struct nouveau_subdev *subdev)
199 {
200 struct nouveau_fifo *pfifo = nouveau_fifo(subdev);
201 struct nouveau_engine *engine = nv_engine(subdev);
202 struct nouveau_object *engctx;
203 struct nouveau_handle *handle;
204 struct nv31_mpeg_priv *priv = (void *)subdev;
205 u32 inst = nv_rd32(priv, 0x00b318) & 0x000fffff;
206 u32 stat = nv_rd32(priv, 0x00b100);
207 u32 type = nv_rd32(priv, 0x00b230);
208 u32 mthd = nv_rd32(priv, 0x00b234);
209 u32 data = nv_rd32(priv, 0x00b238);
210 u32 show = stat;
211 int chid;
212
213 engctx = nouveau_engctx_get(engine, inst);
214 chid = pfifo->chid(pfifo, engctx);
215
216 if (stat & 0x01000000) {
217 /* happens on initial binding of the object */
218 if (type == 0x00000020 && mthd == 0x0000) {
219 nv_mask(priv, 0x00b308, 0x00000000, 0x00000000);
220 show &= ~0x01000000;
221 }
222
223 if (type == 0x00000010) {
224 handle = nouveau_handle_get_class(engctx, 0x3174);
225 if (handle && !nv_call(handle->object, mthd, data))
226 show &= ~0x01000000;
227 nouveau_handle_put(handle);
228 }
229 }
230
231 nv_wr32(priv, 0x00b100, stat);
232 nv_wr32(priv, 0x00b230, 0x00000001);
233
234 if (show) {
235 nv_error(priv,
236 "ch %d [0x%08x %s] 0x%08x 0x%08x 0x%08x 0x%08x\n",
237 chid, inst << 4, nouveau_client_name(engctx), stat,
238 type, mthd, data);
239 }
240
241 nouveau_engctx_put(engctx);
242 }
243
244 static int
245 nv31_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
246 struct nouveau_oclass *oclass, void *data, u32 size,
247 struct nouveau_object **pobject)
248 {
249 struct nv31_mpeg_priv *priv;
250 int ret;
251
252 ret = nouveau_mpeg_create(parent, engine, oclass, &priv);
253 *pobject = nv_object(priv);
254 if (ret)
255 return ret;
256
257 nv_subdev(priv)->unit = 0x00000002;
258 nv_subdev(priv)->intr = nv31_mpeg_intr;
259 nv_engine(priv)->cclass = &nv31_mpeg_cclass;
260 nv_engine(priv)->sclass = nv31_mpeg_sclass;
261 nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog;
262 return 0;
263 }
264
265 int
266 nv31_mpeg_init(struct nouveau_object *object)
267 {
268 struct nouveau_engine *engine = nv_engine(object->engine);
269 struct nv31_mpeg_priv *priv = (void *)engine;
270 struct nouveau_fb *pfb = nouveau_fb(object);
271 int ret, i;
272
273 ret = nouveau_mpeg_init(&priv->base);
274 if (ret)
275 return ret;
276
277 /* VPE init */
278 nv_wr32(priv, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
279 nv_wr32(priv, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
280
281 for (i = 0; i < pfb->tile.regions; i++)
282 engine->tile_prog(engine, i);
283
284 /* PMPEG init */
285 nv_wr32(priv, 0x00b32c, 0x00000000);
286 nv_wr32(priv, 0x00b314, 0x00000100);
287 nv_wr32(priv, 0x00b220, nv44_graph_class(priv) ? 0x00000044 : 0x00000031);
288 nv_wr32(priv, 0x00b300, 0x02001ec1);
289 nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);
290
291 nv_wr32(priv, 0x00b100, 0xffffffff);
292 nv_wr32(priv, 0x00b140, 0xffffffff);
293
294 if (!nv_wait(priv, 0x00b200, 0x00000001, 0x00000000)) {
295 nv_error(priv, "timeout 0x%08x\n", nv_rd32(priv, 0x00b200));
296 return -EBUSY;
297 }
298
299 return 0;
300 }
301
302 struct nouveau_oclass
303 nv31_mpeg_oclass = {
304 .handle = NV_ENGINE(MPEG, 0x31),
305 .ofuncs = &(struct nouveau_ofuncs) {
306 .ctor = nv31_mpeg_ctor,
307 .dtor = _nouveau_mpeg_dtor,
308 .init = nv31_mpeg_init,
309 .fini = _nouveau_mpeg_fini,
310 },
311 };
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