kernel/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.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 "gf100.h"
  25 #include "changf100.h"
  26
  27 #include <core/client.h>
  28 #include <core/enum.h>
  29 #include <core/gpuobj.h>
  30 #include <subdev/bar.h>
  31 #include <engine/sw.h>
  32
  33 #include <nvif/class.h>
  34
  35 static void
  36 gf100_fifo_uevent_init(struct nvkm_fifo *fifo)
  37 {
  38         struct nvkm_device *device = fifo->engine.subdev.device;
  39         nvkm_mask(device, 0x002140, 0x80000000, 0x80000000);
  40 }
  41
  42 static void
  43 gf100_fifo_uevent_fini(struct nvkm_fifo *fifo)
  44 {
  45         struct nvkm_device *device = fifo->engine.subdev.device;
  46         nvkm_mask(device, 0x002140, 0x80000000, 0x00000000);
  47 }
  48
  49 void
  50 gf100_fifo_runlist_update(struct gf100_fifo *fifo)
  51 {
  52         struct gf100_fifo_chan *chan;
  53         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
  54         struct nvkm_device *device = subdev->device;
  55         struct nvkm_memory *cur;
  56         int nr = 0;
  57
  58         mutex_lock(&subdev->mutex);
  59         cur = fifo->runlist.mem[fifo->runlist.active];
  60         fifo->runlist.active = !fifo->runlist.active;
  61
  62         nvkm_kmap(cur);
  63         list_for_each_entry(chan, &fifo->chan, head) {
  64                 nvkm_wo32(cur, (nr * 8) + 0, chan->base.chid);
  65                 nvkm_wo32(cur, (nr * 8) + 4, 0x00000004);
  66                 nr++;
  67         }
  68         nvkm_done(cur);
  69
  70         nvkm_wr32(device, 0x002270, nvkm_memory_addr(cur) >> 12);
  71         nvkm_wr32(device, 0x002274, 0x01f00000 | nr);
  72
  73         if (wait_event_timeout(fifo->runlist.wait,
  74                                !(nvkm_rd32(device, 0x00227c) & 0x00100000),
  75                                msecs_to_jiffies(2000)) == 0)
  76                 nvkm_error(subdev, "runlist update timeout\n");
  77         mutex_unlock(&subdev->mutex);
  78 }
  79
  80 static inline int
  81 gf100_fifo_engidx(struct gf100_fifo *fifo, u32 engn)
  82 {
  83         switch (engn) {
  84         case NVKM_ENGINE_GR    : engn = 0; break;
  85         case NVKM_ENGINE_MSVLD : engn = 1; break;
  86         case NVKM_ENGINE_MSPPP : engn = 2; break;
  87         case NVKM_ENGINE_MSPDEC: engn = 3; break;
  88         case NVKM_ENGINE_CE0   : engn = 4; break;
  89         case NVKM_ENGINE_CE1   : engn = 5; break;
  90         default:
  91                 return -1;
  92         }
  93
  94         return engn;
  95 }
  96
  97 static inline struct nvkm_engine *
  98 gf100_fifo_engine(struct gf100_fifo *fifo, u32 engn)
  99 {
 100         struct nvkm_device *device = fifo->base.engine.subdev.device;
 101
 102         switch (engn) {
 103         case 0: engn = NVKM_ENGINE_GR; break;
 104         case 1: engn = NVKM_ENGINE_MSVLD; break;
 105         case 2: engn = NVKM_ENGINE_MSPPP; break;
 106         case 3: engn = NVKM_ENGINE_MSPDEC; break;
 107         case 4: engn = NVKM_ENGINE_CE0; break;
 108         case 5: engn = NVKM_ENGINE_CE1; break;
 109         default:
 110                 return NULL;
 111         }
 112
 113         return nvkm_device_engine(device, engn);
 114 }
 115
 116 static void
 117 gf100_fifo_recover_work(struct work_struct *work)
 118 {
 119         struct gf100_fifo *fifo = container_of(work, typeof(*fifo), fault);
 120         struct nvkm_device *device = fifo->base.engine.subdev.device;
 121         struct nvkm_engine *engine;
 122         unsigned long flags;
 123         u32 engn, engm = 0;
 124         u64 mask, todo;
 125
 126         spin_lock_irqsave(&fifo->base.lock, flags);
 127         mask = fifo->mask;
 128         fifo->mask = 0ULL;
 129         spin_unlock_irqrestore(&fifo->base.lock, flags);
 130
 131         for (todo = mask; engn = __ffs64(todo), todo; todo &= ~(1 << engn))
 132                 engm |= 1 << gf100_fifo_engidx(fifo, engn);
 133         nvkm_mask(device, 0x002630, engm, engm);
 134
 135         for (todo = mask; engn = __ffs64(todo), todo; todo &= ~(1 << engn)) {
 136                 if ((engine = nvkm_device_engine(device, engn))) {
 137                         nvkm_subdev_fini(&engine->subdev, false);
 138                         WARN_ON(nvkm_subdev_init(&engine->subdev));
 139                 }
 140         }
 141
 142         gf100_fifo_runlist_update(fifo);
 143         nvkm_wr32(device, 0x00262c, engm);
 144         nvkm_mask(device, 0x002630, engm, 0x00000000);
 145 }
 146
 147 static void
 148 gf100_fifo_recover(struct gf100_fifo *fifo, struct nvkm_engine *engine,
 149                    struct gf100_fifo_chan *chan)
 150 {
 151         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 152         struct nvkm_device *device = subdev->device;
 153         u32 chid = chan->base.chid;
 154
 155         nvkm_error(subdev, "%s engine fault on channel %d, recovering...\n",
 156                    nvkm_subdev_name[engine->subdev.index], chid);
 157         assert_spin_locked(&fifo->base.lock);
 158
 159         nvkm_mask(device, 0x003004 + (chid * 0x08), 0x00000001, 0x00000000);
 160         list_del_init(&chan->head);
 161         chan->killed = true;
 162
 163         fifo->mask |= 1ULL << engine->subdev.index;
 164         schedule_work(&fifo->fault);
 165 }
 166
 167 static const struct nvkm_enum
 168 gf100_fifo_sched_reason[] = {
 169         { 0x0a, "CTXSW_TIMEOUT" },
 170         {}
 171 };
 172
 173 static void
 174 gf100_fifo_intr_sched_ctxsw(struct gf100_fifo *fifo)
 175 {
 176         struct nvkm_device *device = fifo->base.engine.subdev.device;
 177         struct nvkm_engine *engine;
 178         struct gf100_fifo_chan *chan;
 179         unsigned long flags;
 180         u32 engn;
 181
 182         spin_lock_irqsave(&fifo->base.lock, flags);
 183         for (engn = 0; engn < 6; engn++) {
 184                 u32 stat = nvkm_rd32(device, 0x002640 + (engn * 0x04));
 185                 u32 busy = (stat & 0x80000000);
 186                 u32 save = (stat & 0x00100000); /* maybe? */
 187                 u32 unk0 = (stat & 0x00040000);
 188                 u32 unk1 = (stat & 0x00001000);
 189                 u32 chid = (stat & 0x0000007f);
 190                 (void)save;
 191
 192                 if (busy && unk0 && unk1) {
 193                         list_for_each_entry(chan, &fifo->chan, head) {
 194                                 if (chan->base.chid == chid) {
 195                                         engine = gf100_fifo_engine(fifo, engn);
 196                                         if (!engine)
 197                                                 break;
 198                                         gf100_fifo_recover(fifo, engine, chan);
 199                                         break;
 200                                 }
 201                         }
 202                 }
 203         }
 204         spin_unlock_irqrestore(&fifo->base.lock, flags);
 205 }
 206
 207 static void
 208 gf100_fifo_intr_sched(struct gf100_fifo *fifo)
 209 {
 210         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 211         struct nvkm_device *device = subdev->device;
 212         u32 intr = nvkm_rd32(device, 0x00254c);
 213         u32 code = intr & 0x000000ff;
 214         const struct nvkm_enum *en;
 215
 216         en = nvkm_enum_find(gf100_fifo_sched_reason, code);
 217
 218         nvkm_error(subdev, "SCHED_ERROR %02x [%s]\n", code, en ? en->name : "");
 219
 220         switch (code) {
 221         case 0x0a:
 222                 gf100_fifo_intr_sched_ctxsw(fifo);
 223                 break;
 224         default:
 225                 break;
 226         }
 227 }
 228
 229 static const struct nvkm_enum
 230 gf100_fifo_fault_engine[] = {
 231         { 0x00, "PGRAPH", NULL, NVKM_ENGINE_GR },
 232         { 0x03, "PEEPHOLE", NULL, NVKM_ENGINE_IFB },
 233         { 0x04, "BAR1", NULL, NVKM_SUBDEV_BAR },
 234         { 0x05, "BAR3", NULL, NVKM_SUBDEV_INSTMEM },
 235         { 0x07, "PFIFO", NULL, NVKM_ENGINE_FIFO },
 236         { 0x10, "PMSVLD", NULL, NVKM_ENGINE_MSVLD },
 237         { 0x11, "PMSPPP", NULL, NVKM_ENGINE_MSPPP },
 238         { 0x13, "PCOUNTER" },
 239         { 0x14, "PMSPDEC", NULL, NVKM_ENGINE_MSPDEC },
 240         { 0x15, "PCE0", NULL, NVKM_ENGINE_CE0 },
 241         { 0x16, "PCE1", NULL, NVKM_ENGINE_CE1 },
 242         { 0x17, "PDAEMON" },
 243         {}
 244 };
 245
 246 static const struct nvkm_enum
 247 gf100_fifo_fault_reason[] = {
 248         { 0x00, "PT_NOT_PRESENT" },
 249         { 0x01, "PT_TOO_SHORT" },
 250         { 0x02, "PAGE_NOT_PRESENT" },
 251         { 0x03, "VM_LIMIT_EXCEEDED" },
 252         { 0x04, "NO_CHANNEL" },
 253         { 0x05, "PAGE_SYSTEM_ONLY" },
 254         { 0x06, "PAGE_READ_ONLY" },
 255         { 0x0a, "COMPRESSED_SYSRAM" },
 256         { 0x0c, "INVALID_STORAGE_TYPE" },
 257         {}
 258 };
 259
 260 static const struct nvkm_enum
 261 gf100_fifo_fault_hubclient[] = {
 262         { 0x01, "PCOPY0" },
 263         { 0x02, "PCOPY1" },
 264         { 0x04, "DISPATCH" },
 265         { 0x05, "CTXCTL" },
 266         { 0x06, "PFIFO" },
 267         { 0x07, "BAR_READ" },
 268         { 0x08, "BAR_WRITE" },
 269         { 0x0b, "PVP" },
 270         { 0x0c, "PMSPPP" },
 271         { 0x0d, "PMSVLD" },
 272         { 0x11, "PCOUNTER" },
 273         { 0x12, "PDAEMON" },
 274         { 0x14, "CCACHE" },
 275         { 0x15, "CCACHE_POST" },
 276         {}
 277 };
 278
 279 static const struct nvkm_enum
 280 gf100_fifo_fault_gpcclient[] = {
 281         { 0x01, "TEX" },
 282         { 0x0c, "ESETUP" },
 283         { 0x0e, "CTXCTL" },
 284         { 0x0f, "PROP" },
 285         {}
 286 };
 287
 288 static void
 289 gf100_fifo_intr_fault(struct gf100_fifo *fifo, int unit)
 290 {
 291         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 292         struct nvkm_device *device = subdev->device;
 293         u32 inst = nvkm_rd32(device, 0x002800 + (unit * 0x10));
 294         u32 valo = nvkm_rd32(device, 0x002804 + (unit * 0x10));
 295         u32 vahi = nvkm_rd32(device, 0x002808 + (unit * 0x10));
 296         u32 stat = nvkm_rd32(device, 0x00280c + (unit * 0x10));
 297         u32 gpc    = (stat & 0x1f000000) >> 24;
 298         u32 client = (stat & 0x00001f00) >> 8;
 299         u32 write  = (stat & 0x00000080);
 300         u32 hub    = (stat & 0x00000040);
 301         u32 reason = (stat & 0x0000000f);
 302         const struct nvkm_enum *er, *eu, *ec;
 303         struct nvkm_engine *engine = NULL;
 304         struct nvkm_fifo_chan *chan;
 305         unsigned long flags;
 306         char gpcid[8] = "";
 307
 308         er = nvkm_enum_find(gf100_fifo_fault_reason, reason);
 309         eu = nvkm_enum_find(gf100_fifo_fault_engine, unit);
 310         if (hub) {
 311                 ec = nvkm_enum_find(gf100_fifo_fault_hubclient, client);
 312         } else {
 313                 ec = nvkm_enum_find(gf100_fifo_fault_gpcclient, client);
 314                 snprintf(gpcid, sizeof(gpcid), "GPC%d/", gpc);
 315         }
 316
 317         if (eu) {
 318                 switch (eu->data2) {
 319                 case NVKM_SUBDEV_BAR:
 320                         nvkm_mask(device, 0x001704, 0x00000000, 0x00000000);
 321                         break;
 322                 case NVKM_SUBDEV_INSTMEM:
 323                         nvkm_mask(device, 0x001714, 0x00000000, 0x00000000);
 324                         break;
 325                 case NVKM_ENGINE_IFB:
 326                         nvkm_mask(device, 0x001718, 0x00000000, 0x00000000);
 327                         break;
 328                 default:
 329                         engine = nvkm_device_engine(device, eu->data2);
 330                         break;
 331                 }
 332         }
 333
 334         chan = nvkm_fifo_chan_inst(&fifo->base, (u64)inst << 12, &flags);
 335
 336         nvkm_error(subdev,
 337                    "%s fault at %010llx engine %02x [%s] client %02x [%s%s] "
 338                    "reason %02x [%s] on channel %d [%010llx %s]\n",
 339                    write ? "write" : "read", (u64)vahi << 32 | valo,
 340                    unit, eu ? eu->name : "", client, gpcid, ec ? ec->name : "",
 341                    reason, er ? er->name : "", chan ? chan->chid : -1,
 342                    (u64)inst << 12,
 343                    chan ? chan->object.client->name : "unknown");
 344
 345         if (engine && chan)
 346                 gf100_fifo_recover(fifo, engine, (void *)chan);
 347         nvkm_fifo_chan_put(&fifo->base, flags, &chan);
 348 }
 349
 350 static const struct nvkm_bitfield
 351 gf100_fifo_pbdma_intr[] = {
 352 /*      { 0x00008000, "" }      seen with null ib push */
 353         { 0x00200000, "ILLEGAL_MTHD" },
 354         { 0x00800000, "EMPTY_SUBC" },
 355         {}
 356 };
 357
 358 static void
 359 gf100_fifo_intr_pbdma(struct gf100_fifo *fifo, int unit)
 360 {
 361         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 362         struct nvkm_device *device = subdev->device;
 363         u32 stat = nvkm_rd32(device, 0x040108 + (unit * 0x2000));
 364         u32 addr = nvkm_rd32(device, 0x0400c0 + (unit * 0x2000));
 365         u32 data = nvkm_rd32(device, 0x0400c4 + (unit * 0x2000));
 366         u32 chid = nvkm_rd32(device, 0x040120 + (unit * 0x2000)) & 0x7f;
 367         u32 subc = (addr & 0x00070000) >> 16;
 368         u32 mthd = (addr & 0x00003ffc);
 369         struct nvkm_fifo_chan *chan;
 370         unsigned long flags;
 371         u32 show= stat;
 372         char msg[128];
 373
 374         if (stat & 0x00800000) {
 375                 if (device->sw) {
 376                         if (nvkm_sw_mthd(device->sw, chid, subc, mthd, data))
 377                                 show &= ~0x00800000;
 378                 }
 379         }
 380
 381         if (show) {
 382                 nvkm_snprintbf(msg, sizeof(msg), gf100_fifo_pbdma_intr, show);
 383                 chan = nvkm_fifo_chan_chid(&fifo->base, chid, &flags);
 384                 nvkm_error(subdev, "PBDMA%d: %08x [%s] ch %d [%010llx %s] "
 385                                    "subc %d mthd %04x data %08x\n",
 386                            unit, show, msg, chid, chan ? chan->inst->addr : 0,
 387                            chan ? chan->object.client->name : "unknown",
 388                            subc, mthd, data);
 389                 nvkm_fifo_chan_put(&fifo->base, flags, &chan);
 390         }
 391
 392         nvkm_wr32(device, 0x0400c0 + (unit * 0x2000), 0x80600008);
 393         nvkm_wr32(device, 0x040108 + (unit * 0x2000), stat);
 394 }
 395
 396 static void
 397 gf100_fifo_intr_runlist(struct gf100_fifo *fifo)
 398 {
 399         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 400         struct nvkm_device *device = subdev->device;
 401         u32 intr = nvkm_rd32(device, 0x002a00);
 402
 403         if (intr & 0x10000000) {
 404                 wake_up(&fifo->runlist.wait);
 405                 nvkm_wr32(device, 0x002a00, 0x10000000);
 406                 intr &= ~0x10000000;
 407         }
 408
 409         if (intr) {
 410                 nvkm_error(subdev, "RUNLIST %08x\n", intr);
 411                 nvkm_wr32(device, 0x002a00, intr);
 412         }
 413 }
 414
 415 static void
 416 gf100_fifo_intr_engine_unit(struct gf100_fifo *fifo, int engn)
 417 {
 418         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 419         struct nvkm_device *device = subdev->device;
 420         u32 intr = nvkm_rd32(device, 0x0025a8 + (engn * 0x04));
 421         u32 inte = nvkm_rd32(device, 0x002628);
 422         u32 unkn;
 423
 424         nvkm_wr32(device, 0x0025a8 + (engn * 0x04), intr);
 425
 426         for (unkn = 0; unkn < 8; unkn++) {
 427                 u32 ints = (intr >> (unkn * 0x04)) & inte;
 428                 if (ints & 0x1) {
 429                         nvkm_fifo_uevent(&fifo->base);
 430                         ints &= ~1;
 431                 }
 432                 if (ints) {
 433                         nvkm_error(subdev, "ENGINE %d %d %01x",
 434                                    engn, unkn, ints);
 435                         nvkm_mask(device, 0x002628, ints, 0);
 436                 }
 437         }
 438 }
 439
 440 void
 441 gf100_fifo_intr_engine(struct gf100_fifo *fifo)
 442 {
 443         struct nvkm_device *device = fifo->base.engine.subdev.device;
 444         u32 mask = nvkm_rd32(device, 0x0025a4);
 445         while (mask) {
 446                 u32 unit = __ffs(mask);
 447                 gf100_fifo_intr_engine_unit(fifo, unit);
 448                 mask &= ~(1 << unit);
 449         }
 450 }
 451
 452 static void
 453 gf100_fifo_intr(struct nvkm_fifo *base)
 454 {
 455         struct gf100_fifo *fifo = gf100_fifo(base);
 456         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 457         struct nvkm_device *device = subdev->device;
 458         u32 mask = nvkm_rd32(device, 0x002140);
 459         u32 stat = nvkm_rd32(device, 0x002100) & mask;
 460
 461         if (stat & 0x00000001) {
 462                 u32 intr = nvkm_rd32(device, 0x00252c);
 463                 nvkm_warn(subdev, "INTR 00000001: %08x\n", intr);
 464                 nvkm_wr32(device, 0x002100, 0x00000001);
 465                 stat &= ~0x00000001;
 466         }
 467
 468         if (stat & 0x00000100) {
 469                 gf100_fifo_intr_sched(fifo);
 470                 nvkm_wr32(device, 0x002100, 0x00000100);
 471                 stat &= ~0x00000100;
 472         }
 473
 474         if (stat & 0x00010000) {
 475                 u32 intr = nvkm_rd32(device, 0x00256c);
 476                 nvkm_warn(subdev, "INTR 00010000: %08x\n", intr);
 477                 nvkm_wr32(device, 0x002100, 0x00010000);
 478                 stat &= ~0x00010000;
 479         }
 480
 481         if (stat & 0x01000000) {
 482                 u32 intr = nvkm_rd32(device, 0x00258c);
 483                 nvkm_warn(subdev, "INTR 01000000: %08x\n", intr);
 484                 nvkm_wr32(device, 0x002100, 0x01000000);
 485                 stat &= ~0x01000000;
 486         }
 487
 488         if (stat & 0x10000000) {
 489                 u32 mask = nvkm_rd32(device, 0x00259c);
 490                 while (mask) {
 491                         u32 unit = __ffs(mask);
 492                         gf100_fifo_intr_fault(fifo, unit);
 493                         nvkm_wr32(device, 0x00259c, (1 << unit));
 494                         mask &= ~(1 << unit);
 495                 }
 496                 stat &= ~0x10000000;
 497         }
 498
 499         if (stat & 0x20000000) {
 500                 u32 mask = nvkm_rd32(device, 0x0025a0);
 501                 while (mask) {
 502                         u32 unit = __ffs(mask);
 503                         gf100_fifo_intr_pbdma(fifo, unit);
 504                         nvkm_wr32(device, 0x0025a0, (1 << unit));
 505                         mask &= ~(1 << unit);
 506                 }
 507                 stat &= ~0x20000000;
 508         }
 509
 510         if (stat & 0x40000000) {
 511                 gf100_fifo_intr_runlist(fifo);
 512                 stat &= ~0x40000000;
 513         }
 514
 515         if (stat & 0x80000000) {
 516                 gf100_fifo_intr_engine(fifo);
 517                 stat &= ~0x80000000;
 518         }
 519
 520         if (stat) {
 521                 nvkm_error(subdev, "INTR %08x\n", stat);
 522                 nvkm_mask(device, 0x002140, stat, 0x00000000);
 523                 nvkm_wr32(device, 0x002100, stat);
 524         }
 525 }
 526
 527 static int
 528 gf100_fifo_oneinit(struct nvkm_fifo *base)
 529 {
 530         struct gf100_fifo *fifo = gf100_fifo(base);
 531         struct nvkm_device *device = fifo->base.engine.subdev.device;
 532         int ret;
 533
 534         ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000,
 535                               false, &fifo->runlist.mem[0]);
 536         if (ret)
 537                 return ret;
 538
 539         ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000,
 540                               false, &fifo->runlist.mem[1]);
 541         if (ret)
 542                 return ret;
 543
 544         init_waitqueue_head(&fifo->runlist.wait);
 545
 546         ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 128 * 0x1000,
 547                               0x1000, false, &fifo->user.mem);
 548         if (ret)
 549                 return ret;
 550
 551         ret = nvkm_bar_umap(device->bar, 128 * 0x1000, 12, &fifo->user.bar);
 552         if (ret)
 553                 return ret;
 554
 555         nvkm_memory_map(fifo->user.mem, &fifo->user.bar, 0);
 556         return 0;
 557 }
 558
 559 static void
 560 gf100_fifo_fini(struct nvkm_fifo *base)
 561 {
 562         struct gf100_fifo *fifo = gf100_fifo(base);
 563         flush_work(&fifo->fault);
 564 }
 565
 566 static void
 567 gf100_fifo_init(struct nvkm_fifo *base)
 568 {
 569         struct gf100_fifo *fifo = gf100_fifo(base);
 570         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 571         struct nvkm_device *device = subdev->device;
 572         int i;
 573
 574         nvkm_wr32(device, 0x000204, 0xffffffff);
 575         nvkm_wr32(device, 0x002204, 0xffffffff);
 576
 577         fifo->spoon_nr = hweight32(nvkm_rd32(device, 0x002204));
 578         nvkm_debug(subdev, "%d PBDMA unit(s)\n", fifo->spoon_nr);
 579
 580         /* assign engines to PBDMAs */
 581         if (fifo->spoon_nr >= 3) {
 582                 nvkm_wr32(device, 0x002208, ~(1 << 0)); /* PGRAPH */
 583                 nvkm_wr32(device, 0x00220c, ~(1 << 1)); /* PVP */
 584                 nvkm_wr32(device, 0x002210, ~(1 << 1)); /* PMSPP */
 585                 nvkm_wr32(device, 0x002214, ~(1 << 1)); /* PMSVLD */
 586                 nvkm_wr32(device, 0x002218, ~(1 << 2)); /* PCE0 */
 587                 nvkm_wr32(device, 0x00221c, ~(1 << 1)); /* PCE1 */
 588         }
 589
 590         /* PBDMA[n] */
 591         for (i = 0; i < fifo->spoon_nr; i++) {
 592                 nvkm_mask(device, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
 593                 nvkm_wr32(device, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */
 594                 nvkm_wr32(device, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTREN */
 595         }
 596
 597         nvkm_mask(device, 0x002200, 0x00000001, 0x00000001);
 598         nvkm_wr32(device, 0x002254, 0x10000000 | fifo->user.bar.offset >> 12);
 599
 600         nvkm_wr32(device, 0x002100, 0xffffffff);
 601         nvkm_wr32(device, 0x002140, 0x7fffffff);
 602         nvkm_wr32(device, 0x002628, 0x00000001); /* ENGINE_INTR_EN */
 603 }
 604
 605 static void *
 606 gf100_fifo_dtor(struct nvkm_fifo *base)
 607 {
 608         struct gf100_fifo *fifo = gf100_fifo(base);
 609         nvkm_vm_put(&fifo->user.bar);
 610         nvkm_memory_del(&fifo->user.mem);
 611         nvkm_memory_del(&fifo->runlist.mem[0]);
 612         nvkm_memory_del(&fifo->runlist.mem[1]);
 613         return fifo;
 614 }
 615
 616 static const struct nvkm_fifo_func
 617 gf100_fifo = {
 618         .dtor = gf100_fifo_dtor,
 619         .oneinit = gf100_fifo_oneinit,
 620         .init = gf100_fifo_init,
 621         .fini = gf100_fifo_fini,
 622         .intr = gf100_fifo_intr,
 623         .uevent_init = gf100_fifo_uevent_init,
 624         .uevent_fini = gf100_fifo_uevent_fini,
 625         .chan = {
 626                 &gf100_fifo_gpfifo_oclass,
 627                 NULL
 628         },
 629 };
 630
 631 int
 632 gf100_fifo_new(struct nvkm_device *device, int index, struct nvkm_fifo **pfifo)
 633 {
 634         struct gf100_fifo *fifo;
 635
 636         if (!(fifo = kzalloc(sizeof(*fifo), GFP_KERNEL)))
 637                 return -ENOMEM;
 638         INIT_LIST_HEAD(&fifo->chan);
 639         INIT_WORK(&fifo->fault, gf100_fifo_recover_work);
 640         *pfifo = &fifo->base;
 641
 642         return nvkm_fifo_ctor(&gf100_fifo, device, index, 128, &fifo->base);
 643 }