1 | /* $NetBSD: nouveau_engine_mpeg_nv31.c,v 1.1.1.1 2014/08/06 12:36:27 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_engine_mpeg_nv31.c,v 1.1.1.1 2014/08/06 12:36:27 riastradh Exp $" ); |
29 | |
30 | #include <core/client.h> |
31 | #include <core/os.h> |
32 | #include <core/class.h> |
33 | #include <core/engctx.h> |
34 | #include <core/handle.h> |
35 | |
36 | #include <subdev/fb.h> |
37 | #include <subdev/timer.h> |
38 | #include <subdev/instmem.h> |
39 | |
40 | #include <engine/fifo.h> |
41 | #include <engine/mpeg.h> |
42 | #include <engine/mpeg/nv31.h> |
43 | |
44 | /******************************************************************************* |
45 | * MPEG object classes |
46 | ******************************************************************************/ |
47 | |
48 | static int |
49 | nv31_mpeg_object_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 nouveau_gpuobj *obj; |
55 | int ret; |
56 | |
57 | ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent, |
58 | 20, 16, 0, &obj); |
59 | *pobject = nv_object(obj); |
60 | if (ret) |
61 | return ret; |
62 | |
63 | nv_wo32(obj, 0x00, nv_mclass(obj)); |
64 | nv_wo32(obj, 0x04, 0x00000000); |
65 | nv_wo32(obj, 0x08, 0x00000000); |
66 | nv_wo32(obj, 0x0c, 0x00000000); |
67 | return 0; |
68 | } |
69 | |
70 | static int |
71 | nv31_mpeg_mthd_dma(struct nouveau_object *object, u32 mthd, void *arg, u32 len) |
72 | { |
73 | struct nouveau_instmem *imem = nouveau_instmem(object); |
74 | struct nv31_mpeg_priv *priv = (void *)object->engine; |
75 | u32 inst = *(u32 *)arg << 4; |
76 | u32 dma0 = nv_ro32(imem, inst + 0); |
77 | u32 dma1 = nv_ro32(imem, inst + 4); |
78 | u32 dma2 = nv_ro32(imem, inst + 8); |
79 | u32 base = (dma2 & 0xfffff000) | (dma0 >> 20); |
80 | u32 size = dma1 + 1; |
81 | |
82 | /* only allow linear DMA objects */ |
83 | if (!(dma0 & 0x00002000)) |
84 | return -EINVAL; |
85 | |
86 | if (mthd == 0x0190) { |
87 | /* DMA_CMD */ |
88 | nv_mask(priv, 0x00b300, 0x00010000, (dma0 & 0x00030000) ? 0x00010000 : 0); |
89 | nv_wr32(priv, 0x00b334, base); |
90 | nv_wr32(priv, 0x00b324, size); |
91 | } else |
92 | if (mthd == 0x01a0) { |
93 | /* DMA_DATA */ |
94 | nv_mask(priv, 0x00b300, 0x00020000, (dma0 & 0x00030000) ? 0x00020000 : 0); |
95 | nv_wr32(priv, 0x00b360, base); |
96 | nv_wr32(priv, 0x00b364, size); |
97 | } else { |
98 | /* DMA_IMAGE, VRAM only */ |
99 | if (dma0 & 0x00030000) |
100 | return -EINVAL; |
101 | |
102 | nv_wr32(priv, 0x00b370, base); |
103 | nv_wr32(priv, 0x00b374, size); |
104 | } |
105 | |
106 | return 0; |
107 | } |
108 | |
109 | struct nouveau_ofuncs |
110 | nv31_mpeg_ofuncs = { |
111 | .ctor = nv31_mpeg_object_ctor, |
112 | .dtor = _nouveau_gpuobj_dtor, |
113 | .init = _nouveau_gpuobj_init, |
114 | .fini = _nouveau_gpuobj_fini, |
115 | .rd32 = _nouveau_gpuobj_rd32, |
116 | .wr32 = _nouveau_gpuobj_wr32, |
117 | }; |
118 | |
119 | static struct nouveau_omthds |
120 | nv31_mpeg_omthds[] = { |
121 | { 0x0190, 0x0190, nv31_mpeg_mthd_dma }, |
122 | { 0x01a0, 0x01a0, nv31_mpeg_mthd_dma }, |
123 | { 0x01b0, 0x01b0, nv31_mpeg_mthd_dma }, |
124 | {} |
125 | }; |
126 | |
127 | struct nouveau_oclass |
128 | nv31_mpeg_sclass[] = { |
129 | { 0x3174, &nv31_mpeg_ofuncs, nv31_mpeg_omthds }, |
130 | {} |
131 | }; |
132 | |
133 | /******************************************************************************* |
134 | * PMPEG context |
135 | ******************************************************************************/ |
136 | |
137 | static int |
138 | nv31_mpeg_context_ctor(struct nouveau_object *parent, |
139 | struct nouveau_object *engine, |
140 | struct nouveau_oclass *oclass, void *data, u32 size, |
141 | struct nouveau_object **pobject) |
142 | { |
143 | struct nv31_mpeg_priv *priv = (void *)engine; |
144 | struct nv31_mpeg_chan *chan; |
145 | unsigned long flags; |
146 | int ret; |
147 | |
148 | ret = nouveau_object_create(parent, engine, oclass, 0, &chan); |
149 | *pobject = nv_object(chan); |
150 | if (ret) |
151 | return ret; |
152 | |
153 | spin_lock_irqsave(&nv_engine(priv)->lock, flags); |
154 | if (priv->chan) { |
155 | spin_unlock_irqrestore(&nv_engine(priv)->lock, flags); |
156 | nouveau_object_destroy(&chan->base); |
157 | *pobject = NULL; |
158 | return -EBUSY; |
159 | } |
160 | priv->chan = chan; |
161 | spin_unlock_irqrestore(&nv_engine(priv)->lock, flags); |
162 | return 0; |
163 | } |
164 | |
165 | static void |
166 | nv31_mpeg_context_dtor(struct nouveau_object *object) |
167 | { |
168 | struct nv31_mpeg_priv *priv = (void *)object->engine; |
169 | struct nv31_mpeg_chan *chan = (void *)object; |
170 | unsigned long flags; |
171 | |
172 | spin_lock_irqsave(&nv_engine(priv)->lock, flags); |
173 | priv->chan = NULL; |
174 | spin_unlock_irqrestore(&nv_engine(priv)->lock, flags); |
175 | nouveau_object_destroy(&chan->base); |
176 | } |
177 | |
178 | struct nouveau_oclass |
179 | nv31_mpeg_cclass = { |
180 | .handle = NV_ENGCTX(MPEG, 0x31), |
181 | .ofuncs = &(struct nouveau_ofuncs) { |
182 | .ctor = nv31_mpeg_context_ctor, |
183 | .dtor = nv31_mpeg_context_dtor, |
184 | .init = nouveau_object_init, |
185 | .fini = nouveau_object_fini, |
186 | }, |
187 | }; |
188 | |
189 | /******************************************************************************* |
190 | * PMPEG engine/subdev functions |
191 | ******************************************************************************/ |
192 | |
193 | void |
194 | nv31_mpeg_tile_prog(struct nouveau_engine *engine, int i) |
195 | { |
196 | struct nouveau_fb_tile *tile = &nouveau_fb(engine)->tile.region[i]; |
197 | struct nv31_mpeg_priv *priv = (void *)engine; |
198 | |
199 | nv_wr32(priv, 0x00b008 + (i * 0x10), tile->pitch); |
200 | nv_wr32(priv, 0x00b004 + (i * 0x10), tile->limit); |
201 | nv_wr32(priv, 0x00b000 + (i * 0x10), tile->addr); |
202 | } |
203 | |
204 | void |
205 | nv31_mpeg_intr(struct nouveau_subdev *subdev) |
206 | { |
207 | struct nv31_mpeg_priv *priv = (void *)subdev; |
208 | struct nouveau_fifo *pfifo = nouveau_fifo(subdev); |
209 | struct nouveau_handle *handle; |
210 | struct nouveau_object *engctx; |
211 | u32 stat = nv_rd32(priv, 0x00b100); |
212 | u32 type = nv_rd32(priv, 0x00b230); |
213 | u32 mthd = nv_rd32(priv, 0x00b234); |
214 | u32 data = nv_rd32(priv, 0x00b238); |
215 | u32 show = stat; |
216 | unsigned long flags; |
217 | |
218 | spin_lock_irqsave(&nv_engine(priv)->lock, flags); |
219 | engctx = nv_object(priv->chan); |
220 | |
221 | if (stat & 0x01000000) { |
222 | /* happens on initial binding of the object */ |
223 | if (type == 0x00000020 && mthd == 0x0000) { |
224 | nv_mask(priv, 0x00b308, 0x00000000, 0x00000000); |
225 | show &= ~0x01000000; |
226 | } |
227 | |
228 | if (type == 0x00000010 && engctx) { |
229 | handle = nouveau_handle_get_class(engctx, 0x3174); |
230 | if (handle && !nv_call(handle->object, mthd, data)) |
231 | show &= ~0x01000000; |
232 | nouveau_handle_put(handle); |
233 | } |
234 | } |
235 | |
236 | nv_wr32(priv, 0x00b100, stat); |
237 | nv_wr32(priv, 0x00b230, 0x00000001); |
238 | |
239 | if (show) { |
240 | nv_error(priv, "ch %d [%s] 0x%08x 0x%08x 0x%08x 0x%08x\n" , |
241 | pfifo->chid(pfifo, engctx), |
242 | nouveau_client_name(engctx), stat, type, mthd, data); |
243 | } |
244 | |
245 | spin_unlock_irqrestore(&nv_engine(priv)->lock, flags); |
246 | } |
247 | |
248 | static int |
249 | nv31_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
250 | struct nouveau_oclass *oclass, void *data, u32 size, |
251 | struct nouveau_object **pobject) |
252 | { |
253 | struct nv31_mpeg_priv *priv; |
254 | int ret; |
255 | |
256 | ret = nouveau_mpeg_create(parent, engine, oclass, &priv); |
257 | *pobject = nv_object(priv); |
258 | if (ret) |
259 | return ret; |
260 | |
261 | nv_subdev(priv)->unit = 0x00000002; |
262 | nv_subdev(priv)->intr = nv31_mpeg_intr; |
263 | nv_engine(priv)->cclass = &nv31_mpeg_cclass; |
264 | nv_engine(priv)->sclass = nv31_mpeg_sclass; |
265 | nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog; |
266 | return 0; |
267 | } |
268 | |
269 | int |
270 | nv31_mpeg_init(struct nouveau_object *object) |
271 | { |
272 | struct nouveau_engine *engine = nv_engine(object); |
273 | struct nv31_mpeg_priv *priv = (void *)object; |
274 | struct nouveau_fb *pfb = nouveau_fb(object); |
275 | int ret, i; |
276 | |
277 | ret = nouveau_mpeg_init(&priv->base); |
278 | if (ret) |
279 | return ret; |
280 | |
281 | /* VPE init */ |
282 | nv_wr32(priv, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */ |
283 | nv_wr32(priv, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */ |
284 | |
285 | for (i = 0; i < pfb->tile.regions; i++) |
286 | engine->tile_prog(engine, i); |
287 | |
288 | /* PMPEG init */ |
289 | nv_wr32(priv, 0x00b32c, 0x00000000); |
290 | nv_wr32(priv, 0x00b314, 0x00000100); |
291 | nv_wr32(priv, 0x00b220, 0x00000031); |
292 | nv_wr32(priv, 0x00b300, 0x02001ec1); |
293 | nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001); |
294 | |
295 | nv_wr32(priv, 0x00b100, 0xffffffff); |
296 | nv_wr32(priv, 0x00b140, 0xffffffff); |
297 | |
298 | if (!nv_wait(priv, 0x00b200, 0x00000001, 0x00000000)) { |
299 | nv_error(priv, "timeout 0x%08x\n" , nv_rd32(priv, 0x00b200)); |
300 | return -EBUSY; |
301 | } |
302 | |
303 | return 0; |
304 | } |
305 | |
306 | struct nouveau_oclass |
307 | nv31_mpeg_oclass = { |
308 | .handle = NV_ENGINE(MPEG, 0x31), |
309 | .ofuncs = &(struct nouveau_ofuncs) { |
310 | .ctor = nv31_mpeg_ctor, |
311 | .dtor = _nouveau_mpeg_dtor, |
312 | .init = nv31_mpeg_init, |
313 | .fini = _nouveau_mpeg_fini, |
314 | }, |
315 | }; |
316 | |