| 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 | |