drivers/gpu/drm/nouveau/core/engine/fifo/nve0.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/handle.h>
  27 #include <core/namedb.h>
  28 #include <core/gpuobj.h>
  29 #include <core/engctx.h>
  30 #include <core/event.h>
  31 #include <core/class.h>
  32 #include <core/math.h>
  33 #include <core/enum.h>
  34
  35 #include <subdev/timer.h>
  36 #include <subdev/bar.h>
  37 #include <subdev/vm.h>
  38
  39 #include <engine/dmaobj.h>
  40 #include <engine/fifo.h>
  41
  42 #define _(a,b) { (a), ((1ULL << (a)) | (b)) }
  43 static const struct {
  44         u64 subdev;
  45         u64 mask;
  46 } fifo_engine[] = {
  47         _(NVDEV_ENGINE_GR      , (1ULL << NVDEV_ENGINE_SW)),
  48         _(NVDEV_ENGINE_VP      , 0),
  49         _(NVDEV_ENGINE_PPP     , 0),
  50         _(NVDEV_ENGINE_BSP     , 0),
  51         _(NVDEV_ENGINE_COPY0   , 0),
  52         _(NVDEV_ENGINE_COPY1   , 0),
  53         _(NVDEV_ENGINE_VENC    , 0),
  54 };
  55 #undef _
  56 #define FIFO_ENGINE_NR ARRAY_SIZE(fifo_engine)
  57
  58 struct nve0_fifo_engn {
  59         struct nouveau_gpuobj *playlist[2];
  60         int cur_playlist;
  61 };
  62
  63 struct nve0_fifo_priv {
  64         struct nouveau_fifo base;
  65         struct nve0_fifo_engn engine[FIFO_ENGINE_NR];
  66         struct {
  67                 struct nouveau_gpuobj *mem;
  68                 struct nouveau_vma bar;
  69         } user;
  70         int spoon_nr;
  71 };
  72
  73 struct nve0_fifo_base {
  74         struct nouveau_fifo_base base;
  75         struct nouveau_gpuobj *pgd;
  76         struct nouveau_vm *vm;
  77 };
  78
  79 struct nve0_fifo_chan {
  80         struct nouveau_fifo_chan base;
  81         u32 engine;
  82 };
  83
  84 /*******************************************************************************
  85  * FIFO channel objects
  86  ******************************************************************************/
  87
  88 static void
  89 nve0_fifo_playlist_update(struct nve0_fifo_priv *priv, u32 engine)
  90 {
  91         struct nouveau_bar *bar = nouveau_bar(priv);
  92         struct nve0_fifo_engn *engn = &priv->engine[engine];
  93         struct nouveau_gpuobj *cur;
  94         u32 match = (engine << 16) | 0x00000001;
  95         int i, p;
  96
  97         cur = engn->playlist[engn->cur_playlist];
  98         if (unlikely(cur == NULL)) {
  99                 int ret = nouveau_gpuobj_new(nv_object(priv), NULL,
 100                                              0x8000, 0x1000, 0, &cur);
 101                 if (ret) {
 102                         nv_error(priv, "playlist alloc failed\n");
 103                         return;
 104                 }
 105
 106                 engn->playlist[engn->cur_playlist] = cur;
 107         }
 108
 109         engn->cur_playlist = !engn->cur_playlist;
 110
 111         for (i = 0, p = 0; i < priv->base.max; i++) {
 112                 u32 ctrl = nv_rd32(priv, 0x800004 + (i * 8)) & 0x001f0001;
 113                 if (ctrl != match)
 114                         continue;
 115                 nv_wo32(cur, p + 0, i);
 116                 nv_wo32(cur, p + 4, 0x00000000);
 117                 p += 8;
 118         }
 119         bar->flush(bar);
 120
 121         nv_wr32(priv, 0x002270, cur->addr >> 12);
 122         nv_wr32(priv, 0x002274, (engine << 20) | (p >> 3));
 123         if (!nv_wait(priv, 0x002284 + (engine * 4), 0x00100000, 0x00000000))
 124                 nv_error(priv, "playlist %d update timeout\n", engine);
 125 }
 126
 127 static int
 128 nve0_fifo_context_attach(struct nouveau_object *parent,
 129                          struct nouveau_object *object)
 130 {
 131         struct nouveau_bar *bar = nouveau_bar(parent);
 132         struct nve0_fifo_base *base = (void *)parent->parent;
 133         struct nouveau_engctx *ectx = (void *)object;
 134         u32 addr;
 135         int ret;
 136
 137         switch (nv_engidx(object->engine)) {
 138         case NVDEV_ENGINE_SW   : return 0;
 139         case NVDEV_ENGINE_GR   :
 140         case NVDEV_ENGINE_COPY0:
 141         case NVDEV_ENGINE_COPY1: addr = 0x0210; break;
 142         case NVDEV_ENGINE_BSP  : addr = 0x0270; break;
 143         case NVDEV_ENGINE_VP   : addr = 0x0250; break;
 144         case NVDEV_ENGINE_PPP  : addr = 0x0260; break;
 145         default:
 146                 return -EINVAL;
 147         }
 148
 149         if (!ectx->vma.node) {
 150                 ret = nouveau_gpuobj_map_vm(nv_gpuobj(ectx), base->vm,
 151                                             NV_MEM_ACCESS_RW, &ectx->vma);
 152                 if (ret)
 153                         return ret;
 154
 155                 nv_engctx(ectx)->addr = nv_gpuobj(base)->addr >> 12;
 156         }
 157
 158         nv_wo32(base, addr + 0x00, lower_32_bits(ectx->vma.offset) | 4);
 159         nv_wo32(base, addr + 0x04, upper_32_bits(ectx->vma.offset));
 160         bar->flush(bar);
 161         return 0;
 162 }
 163
 164 static int
 165 nve0_fifo_context_detach(struct nouveau_object *parent, bool suspend,
 166                          struct nouveau_object *object)
 167 {
 168         struct nouveau_bar *bar = nouveau_bar(parent);
 169         struct nve0_fifo_priv *priv = (void *)parent->engine;
 170         struct nve0_fifo_base *base = (void *)parent->parent;
 171         struct nve0_fifo_chan *chan = (void *)parent;
 172         u32 addr;
 173
 174         switch (nv_engidx(object->engine)) {
 175         case NVDEV_ENGINE_SW   : return 0;
 176         case NVDEV_ENGINE_GR   :
 177         case NVDEV_ENGINE_COPY0:
 178         case NVDEV_ENGINE_COPY1: addr = 0x0210; break;
 179         case NVDEV_ENGINE_BSP  : addr = 0x0270; break;
 180         case NVDEV_ENGINE_VP   : addr = 0x0250; break;
 181         case NVDEV_ENGINE_PPP  : addr = 0x0260; break;
 182         default:
 183                 return -EINVAL;
 184         }
 185
 186         nv_wr32(priv, 0x002634, chan->base.chid);
 187         if (!nv_wait(priv, 0x002634, 0xffffffff, chan->base.chid)) {
 188                 nv_error(priv, "channel %d [%s] kick timeout\n",
 189                          chan->base.chid, nouveau_client_name(chan));
 190                 if (suspend)
 191                         return -EBUSY;
 192         }
 193
 194         nv_wo32(base, addr + 0x00, 0x00000000);
 195         nv_wo32(base, addr + 0x04, 0x00000000);
 196         bar->flush(bar);
 197         return 0;
 198 }
 199
 200 static int
 201 nve0_fifo_chan_ctor(struct nouveau_object *parent,
 202                     struct nouveau_object *engine,
 203                     struct nouveau_oclass *oclass, void *data, u32 size,
 204                     struct nouveau_object **pobject)
 205 {
 206         struct nouveau_bar *bar = nouveau_bar(parent);
 207         struct nve0_fifo_priv *priv = (void *)engine;
 208         struct nve0_fifo_base *base = (void *)parent;
 209         struct nve0_fifo_chan *chan;
 210         struct nve0_channel_ind_class *args = data;
 211         u64 usermem, ioffset, ilength;
 212         int ret, i;
 213
 214         if (size < sizeof(*args))
 215                 return -EINVAL;
 216
 217         for (i = 0; i < FIFO_ENGINE_NR; i++) {
 218                 if (args->engine & (1 << i)) {
 219                         if (nouveau_engine(parent, fifo_engine[i].subdev)) {
 220                                 args->engine = (1 << i);
 221                                 break;
 222                         }
 223                 }
 224         }
 225
 226         if (i == FIFO_ENGINE_NR)
 227                 return -ENODEV;
 228
 229         ret = nouveau_fifo_channel_create(parent, engine, oclass, 1,
 230                                           priv->user.bar.offset, 0x200,
 231                                           args->pushbuf,
 232                                           fifo_engine[i].mask, &chan);
 233         *pobject = nv_object(chan);
 234         if (ret)
 235                 return ret;
 236
 237         nv_parent(chan)->context_attach = nve0_fifo_context_attach;
 238         nv_parent(chan)->context_detach = nve0_fifo_context_detach;
 239         chan->engine = i;
 240
 241         usermem = chan->base.chid * 0x200;
 242         ioffset = args->ioffset;
 243         ilength = log2i(args->ilength / 8);
 244
 245         for (i = 0; i < 0x200; i += 4)
 246                 nv_wo32(priv->user.mem, usermem + i, 0x00000000);
 247
 248         nv_wo32(base, 0x08, lower_32_bits(priv->user.mem->addr + usermem));
 249         nv_wo32(base, 0x0c, upper_32_bits(priv->user.mem->addr + usermem));
 250         nv_wo32(base, 0x10, 0x0000face);
 251         nv_wo32(base, 0x30, 0xfffff902);
 252         nv_wo32(base, 0x48, lower_32_bits(ioffset));
 253         nv_wo32(base, 0x4c, upper_32_bits(ioffset) | (ilength << 16));
 254         nv_wo32(base, 0x84, 0x20400000);
 255         nv_wo32(base, 0x94, 0x30000001);
 256         nv_wo32(base, 0x9c, 0x00000100);
 257         nv_wo32(base, 0xac, 0x0000001f);
 258         nv_wo32(base, 0xe8, chan->base.chid);
 259         nv_wo32(base, 0xb8, 0xf8000000);
 260         nv_wo32(base, 0xf8, 0x10003080); /* 0x002310 */
 261         nv_wo32(base, 0xfc, 0x10000010); /* 0x002350 */
 262         bar->flush(bar);
 263         return 0;
 264 }
 265
 266 static int
 267 nve0_fifo_chan_init(struct nouveau_object *object)
 268 {
 269         struct nouveau_gpuobj *base = nv_gpuobj(object->parent);
 270         struct nve0_fifo_priv *priv = (void *)object->engine;
 271         struct nve0_fifo_chan *chan = (void *)object;
 272         u32 chid = chan->base.chid;
 273         int ret;
 274
 275         ret = nouveau_fifo_channel_init(&chan->base);
 276         if (ret)
 277                 return ret;
 278
 279         nv_mask(priv, 0x800004 + (chid * 8), 0x000f0000, chan->engine << 16);
 280         nv_wr32(priv, 0x800000 + (chid * 8), 0x80000000 | base->addr >> 12);
 281         nv_mask(priv, 0x800004 + (chid * 8), 0x00000400, 0x00000400);
 282         nve0_fifo_playlist_update(priv, chan->engine);
 283         nv_mask(priv, 0x800004 + (chid * 8), 0x00000400, 0x00000400);
 284         return 0;
 285 }
 286
 287 static int
 288 nve0_fifo_chan_fini(struct nouveau_object *object, bool suspend)
 289 {
 290         struct nve0_fifo_priv *priv = (void *)object->engine;
 291         struct nve0_fifo_chan *chan = (void *)object;
 292         u32 chid = chan->base.chid;
 293
 294         nv_mask(priv, 0x800004 + (chid * 8), 0x00000800, 0x00000800);
 295         nve0_fifo_playlist_update(priv, chan->engine);
 296         nv_wr32(priv, 0x800000 + (chid * 8), 0x00000000);
 297
 298         return nouveau_fifo_channel_fini(&chan->base, suspend);
 299 }
 300
 301 static struct nouveau_ofuncs
 302 nve0_fifo_ofuncs = {
 303         .ctor = nve0_fifo_chan_ctor,
 304         .dtor = _nouveau_fifo_channel_dtor,
 305         .init = nve0_fifo_chan_init,
 306         .fini = nve0_fifo_chan_fini,
 307         .rd32 = _nouveau_fifo_channel_rd32,
 308         .wr32 = _nouveau_fifo_channel_wr32,
 309 };
 310
 311 static struct nouveau_oclass
 312 nve0_fifo_sclass[] = {
 313         { NVE0_CHANNEL_IND_CLASS, &nve0_fifo_ofuncs },
 314         {}
 315 };
 316
 317 /*******************************************************************************
 318  * FIFO context - instmem heap and vm setup
 319  ******************************************************************************/
 320
 321 static int
 322 nve0_fifo_context_ctor(struct nouveau_object *parent,
 323                     struct nouveau_object *engine,
 324                     struct nouveau_oclass *oclass, void *data, u32 size,
 325                     struct nouveau_object **pobject)
 326 {
 327         struct nve0_fifo_base *base;
 328         int ret;
 329
 330         ret = nouveau_fifo_context_create(parent, engine, oclass, NULL, 0x1000,
 331                                           0x1000, NVOBJ_FLAG_ZERO_ALLOC, &base);
 332         *pobject = nv_object(base);
 333         if (ret)
 334                 return ret;
 335
 336         ret = nouveau_gpuobj_new(nv_object(base), NULL, 0x10000, 0x1000, 0,
 337                                 &base->pgd);
 338         if (ret)
 339                 return ret;
 340
 341         nv_wo32(base, 0x0200, lower_32_bits(base->pgd->addr));
 342         nv_wo32(base, 0x0204, upper_32_bits(base->pgd->addr));
 343         nv_wo32(base, 0x0208, 0xffffffff);
 344         nv_wo32(base, 0x020c, 0x000000ff);
 345
 346         ret = nouveau_vm_ref(nouveau_client(parent)->vm, &base->vm, base->pgd);
 347         if (ret)
 348                 return ret;
 349
 350         return 0;
 351 }
 352
 353 static void
 354 nve0_fifo_context_dtor(struct nouveau_object *object)
 355 {
 356         struct nve0_fifo_base *base = (void *)object;
 357         nouveau_vm_ref(NULL, &base->vm, base->pgd);
 358         nouveau_gpuobj_ref(NULL, &base->pgd);
 359         nouveau_fifo_context_destroy(&base->base);
 360 }
 361
 362 static struct nouveau_oclass
 363 nve0_fifo_cclass = {
 364         .handle = NV_ENGCTX(FIFO, 0xe0),
 365         .ofuncs = &(struct nouveau_ofuncs) {
 366                 .ctor = nve0_fifo_context_ctor,
 367                 .dtor = nve0_fifo_context_dtor,
 368                 .init = _nouveau_fifo_context_init,
 369                 .fini = _nouveau_fifo_context_fini,
 370                 .rd32 = _nouveau_fifo_context_rd32,
 371                 .wr32 = _nouveau_fifo_context_wr32,
 372         },
 373 };
 374
 375 /*******************************************************************************
 376  * PFIFO engine
 377  ******************************************************************************/
 378
 379 static const struct nouveau_enum nve0_fifo_fault_unit[] = {
 380         {}
 381 };
 382
 383 static const struct nouveau_enum nve0_fifo_fault_reason[] = {
 384         { 0x00, "PT_NOT_PRESENT" },
 385         { 0x01, "PT_TOO_SHORT" },
 386         { 0x02, "PAGE_NOT_PRESENT" },
 387         { 0x03, "VM_LIMIT_EXCEEDED" },
 388         { 0x04, "NO_CHANNEL" },
 389         { 0x05, "PAGE_SYSTEM_ONLY" },
 390         { 0x06, "PAGE_READ_ONLY" },
 391         { 0x0a, "COMPRESSED_SYSRAM" },
 392         { 0x0c, "INVALID_STORAGE_TYPE" },
 393         {}
 394 };
 395
 396 static const struct nouveau_enum nve0_fifo_fault_hubclient[] = {
 397         {}
 398 };
 399
 400 static const struct nouveau_enum nve0_fifo_fault_gpcclient[] = {
 401         {}
 402 };
 403
 404 static const struct nouveau_bitfield nve0_fifo_subfifo_intr[] = {
 405         { 0x00200000, "ILLEGAL_MTHD" },
 406         { 0x00800000, "EMPTY_SUBC" },
 407         {}
 408 };
 409
 410 static void
 411 nve0_fifo_isr_vm_fault(struct nve0_fifo_priv *priv, int unit)
 412 {
 413         u32 inst = nv_rd32(priv, 0x2800 + (unit * 0x10));
 414         u32 valo = nv_rd32(priv, 0x2804 + (unit * 0x10));
 415         u32 vahi = nv_rd32(priv, 0x2808 + (unit * 0x10));
 416         u32 stat = nv_rd32(priv, 0x280c + (unit * 0x10));
 417         u32 client = (stat & 0x00001f00) >> 8;
 418         const struct nouveau_enum *en;
 419         struct nouveau_engine *engine;
 420         struct nouveau_object *engctx = NULL;
 421
 422         nv_error(priv, "PFIFO: %s fault at 0x%010llx [", (stat & 0x00000080) ?
 423                        "write" : "read", (u64)vahi << 32 | valo);
 424         nouveau_enum_print(nve0_fifo_fault_reason, stat & 0x0000000f);
 425         pr_cont("] from ");
 426         en = nouveau_enum_print(nve0_fifo_fault_unit, unit);
 427         if (stat & 0x00000040) {
 428                 pr_cont("/");
 429                 nouveau_enum_print(nve0_fifo_fault_hubclient, client);
 430         } else {
 431                 pr_cont("/GPC%d/", (stat & 0x1f000000) >> 24);
 432                 nouveau_enum_print(nve0_fifo_fault_gpcclient, client);
 433         }
 434
 435         if (en && en->data2) {
 436                 engine = nouveau_engine(priv, en->data2);
 437                 if (engine)
 438                         engctx = nouveau_engctx_get(engine, inst);
 439
 440         }
 441
 442         pr_cont(" on channel 0x%010llx [%s]\n", (u64)inst << 12,
 443                         nouveau_client_name(engctx));
 444
 445         nouveau_engctx_put(engctx);
 446 }
 447
 448 static int
 449 nve0_fifo_swmthd(struct nve0_fifo_priv *priv, u32 chid, u32 mthd, u32 data)
 450 {
 451         struct nve0_fifo_chan *chan = NULL;
 452         struct nouveau_handle *bind;
 453         unsigned long flags;
 454         int ret = -EINVAL;
 455
 456         spin_lock_irqsave(&priv->base.lock, flags);
 457         if (likely(chid >= priv->base.min && chid <= priv->base.max))
 458                 chan = (void *)priv->base.channel[chid];
 459         if (unlikely(!chan))
 460                 goto out;
 461
 462         bind = nouveau_namedb_get_class(nv_namedb(chan), 0x906e);
 463         if (likely(bind)) {
 464                 if (!mthd || !nv_call(bind->object, mthd, data))
 465                         ret = 0;
 466                 nouveau_namedb_put(bind);
 467         }
 468
 469 out:
 470         spin_unlock_irqrestore(&priv->base.lock, flags);
 471         return ret;
 472 }
 473
 474 static void
 475 nve0_fifo_isr_subfifo_intr(struct nve0_fifo_priv *priv, int unit)
 476 {
 477         u32 stat = nv_rd32(priv, 0x040108 + (unit * 0x2000));
 478         u32 addr = nv_rd32(priv, 0x0400c0 + (unit * 0x2000));
 479         u32 data = nv_rd32(priv, 0x0400c4 + (unit * 0x2000));
 480         u32 chid = nv_rd32(priv, 0x040120 + (unit * 0x2000)) & 0xfff;
 481         u32 subc = (addr & 0x00070000) >> 16;
 482         u32 mthd = (addr & 0x00003ffc);
 483         u32 show = stat;
 484
 485         if (stat & 0x00200000) {
 486                 if (mthd == 0x0054) {
 487                         if (!nve0_fifo_swmthd(priv, chid, 0x0500, 0x00000000))
 488                                 show &= ~0x00200000;
 489                 }
 490         }
 491
 492         if (stat & 0x00800000) {
 493                 if (!nve0_fifo_swmthd(priv, chid, mthd, data))
 494                         show &= ~0x00800000;
 495         }
 496
 497         if (show) {
 498                 nv_error(priv, "SUBFIFO%d:", unit);
 499                 nouveau_bitfield_print(nve0_fifo_subfifo_intr, show);
 500                 pr_cont("\n");
 501                 nv_error(priv,
 502                          "SUBFIFO%d: ch %d [%s] subc %d mthd 0x%04x data 0x%08x\n",
 503                          unit, chid,
 504                          nouveau_client_name_for_fifo_chid(&priv->base, chid),
 505                          subc, mthd, data);
 506         }
 507
 508         nv_wr32(priv, 0x0400c0 + (unit * 0x2000), 0x80600008);
 509         nv_wr32(priv, 0x040108 + (unit * 0x2000), stat);
 510 }
 511
 512 static void
 513 nve0_fifo_intr(struct nouveau_subdev *subdev)
 514 {
 515         struct nve0_fifo_priv *priv = (void *)subdev;
 516         u32 mask = nv_rd32(priv, 0x002140);
 517         u32 stat = nv_rd32(priv, 0x002100) & mask;
 518
 519         if (stat & 0x00000100) {
 520                 nv_warn(priv, "unknown status 0x00000100\n");
 521                 nv_wr32(priv, 0x002100, 0x00000100);
 522                 stat &= ~0x00000100;
 523         }
 524
 525         if (stat & 0x10000000) {
 526                 u32 units = nv_rd32(priv, 0x00259c);
 527                 u32 u = units;
 528
 529                 while (u) {
 530                         int i = ffs(u) - 1;
 531                         nve0_fifo_isr_vm_fault(priv, i);
 532                         u &= ~(1 << i);
 533                 }
 534
 535                 nv_wr32(priv, 0x00259c, units);
 536                 stat &= ~0x10000000;
 537         }
 538
 539         if (stat & 0x20000000) {
 540                 u32 units = nv_rd32(priv, 0x0025a0);
 541                 u32 u = units;
 542
 543                 while (u) {
 544                         int i = ffs(u) - 1;
 545                         nve0_fifo_isr_subfifo_intr(priv, i);
 546                         u &= ~(1 << i);
 547                 }
 548
 549                 nv_wr32(priv, 0x0025a0, units);
 550                 stat &= ~0x20000000;
 551         }
 552
 553         if (stat & 0x40000000) {
 554                 nv_warn(priv, "unknown status 0x40000000\n");
 555                 nv_mask(priv, 0x002a00, 0x00000000, 0x00000000);
 556                 stat &= ~0x40000000;
 557         }
 558
 559         if (stat & 0x80000000) {
 560                 nouveau_event_trigger(priv->base.uevent, 0);
 561                 nv_wr32(priv, 0x002100, 0x80000000);
 562                 stat &= ~0x80000000;
 563         }
 564
 565         if (stat) {
 566                 nv_fatal(priv, "unhandled status 0x%08x\n", stat);
 567                 nv_wr32(priv, 0x002100, stat);
 568                 nv_wr32(priv, 0x002140, 0);
 569         }
 570 }
 571
 572 static void
 573 nve0_fifo_uevent_enable(struct nouveau_event *event, int index)
 574 {
 575         struct nve0_fifo_priv *priv = event->priv;
 576         nv_mask(priv, 0x002140, 0x80000000, 0x80000000);
 577 }
 578
 579 static void
 580 nve0_fifo_uevent_disable(struct nouveau_event *event, int index)
 581 {
 582         struct nve0_fifo_priv *priv = event->priv;
 583         nv_mask(priv, 0x002140, 0x80000000, 0x00000000);
 584 }
 585
 586 static int
 587 nve0_fifo_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 588                struct nouveau_oclass *oclass, void *data, u32 size,
 589                struct nouveau_object **pobject)
 590 {
 591         struct nve0_fifo_priv *priv;
 592         int ret;
 593
 594         ret = nouveau_fifo_create(parent, engine, oclass, 0, 4095, &priv);
 595         *pobject = nv_object(priv);
 596         if (ret)
 597                 return ret;
 598
 599         ret = nouveau_gpuobj_new(nv_object(priv), NULL, 4096 * 0x200, 0x1000,
 600                                  NVOBJ_FLAG_ZERO_ALLOC, &priv->user.mem);
 601         if (ret)
 602                 return ret;
 603
 604         ret = nouveau_gpuobj_map(priv->user.mem, NV_MEM_ACCESS_RW,
 605                                 &priv->user.bar);
 606         if (ret)
 607                 return ret;
 608
 609         priv->base.uevent->enable = nve0_fifo_uevent_enable;
 610         priv->base.uevent->disable = nve0_fifo_uevent_disable;
 611         priv->base.uevent->priv = priv;
 612
 613         nv_subdev(priv)->unit = 0x00000100;
 614         nv_subdev(priv)->intr = nve0_fifo_intr;
 615         nv_engine(priv)->cclass = &nve0_fifo_cclass;
 616         nv_engine(priv)->sclass = nve0_fifo_sclass;
 617         return 0;
 618 }
 619
 620 static void
 621 nve0_fifo_dtor(struct nouveau_object *object)
 622 {
 623         struct nve0_fifo_priv *priv = (void *)object;
 624         int i;
 625
 626         nouveau_gpuobj_unmap(&priv->user.bar);
 627         nouveau_gpuobj_ref(NULL, &priv->user.mem);
 628
 629         for (i = 0; i < ARRAY_SIZE(priv->engine); i++) {
 630                 nouveau_gpuobj_ref(NULL, &priv->engine[i].playlist[1]);
 631                 nouveau_gpuobj_ref(NULL, &priv->engine[i].playlist[0]);
 632         }
 633
 634         nouveau_fifo_destroy(&priv->base);
 635 }
 636
 637 static int
 638 nve0_fifo_init(struct nouveau_object *object)
 639 {
 640         struct nve0_fifo_priv *priv = (void *)object;
 641         int ret, i;
 642
 643         ret = nouveau_fifo_init(&priv->base);
 644         if (ret)
 645                 return ret;
 646
 647         /* enable all available PSUBFIFOs */
 648         nv_wr32(priv, 0x000204, 0xffffffff);
 649         priv->spoon_nr = hweight32(nv_rd32(priv, 0x000204));
 650         nv_debug(priv, "%d subfifo(s)\n", priv->spoon_nr);
 651
 652         /* PSUBFIFO[n] */
 653         for (i = 0; i < priv->spoon_nr; i++) {
 654                 nv_mask(priv, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
 655                 nv_wr32(priv, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */
 656                 nv_wr32(priv, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTREN */
 657         }
 658
 659         nv_wr32(priv, 0x002254, 0x10000000 | priv->user.bar.offset >> 12);
 660
 661         nv_wr32(priv, 0x002a00, 0xffffffff);
 662         nv_wr32(priv, 0x002100, 0xffffffff);
 663         nv_wr32(priv, 0x002140, 0x3fffffff);
 664         return 0;
 665 }
 666
 667 struct nouveau_oclass
 668 nve0_fifo_oclass = {
 669         .handle = NV_ENGINE(FIFO, 0xe0),
 670         .ofuncs = &(struct nouveau_ofuncs) {
 671                 .ctor = nve0_fifo_ctor,
 672                 .dtor = nve0_fifo_dtor,
 673                 .init = nve0_fifo_init,
 674                 .fini = _nouveau_fifo_fini,
 675         },
 676 };