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_commit(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 void
  81 gf100_fifo_runlist_remove(struct gf100_fifo *fifo, struct gf100_fifo_chan *chan)
  82 {
  83         mutex_lock(&fifo->base.engine.subdev.mutex);
  84         list_del_init(&chan->head);
  85         mutex_unlock(&fifo->base.engine.subdev.mutex);
  86 }
  87
  88 void
  89 gf100_fifo_runlist_insert(struct gf100_fifo *fifo, struct gf100_fifo_chan *chan)
  90 {
  91         mutex_lock(&fifo->base.engine.subdev.mutex);
  92         list_add_tail(&chan->head, &fifo->chan);
  93         mutex_unlock(&fifo->base.engine.subdev.mutex);
  94 }
  95
  96 static inline int
  97 gf100_fifo_engidx(struct gf100_fifo *fifo, u32 engn)
  98 {
  99         switch (engn) {
 100         case NVKM_ENGINE_GR    : engn = 0; break;
 101         case NVKM_ENGINE_MSVLD : engn = 1; break;
 102         case NVKM_ENGINE_MSPPP : engn = 2; break;
 103         case NVKM_ENGINE_MSPDEC: engn = 3; break;
 104         case NVKM_ENGINE_CE0   : engn = 4; break;
 105         case NVKM_ENGINE_CE1   : engn = 5; break;
 106         default:
 107                 return -1;
 108         }
 109
 110         return engn;
 111 }
 112
 113 static inline struct nvkm_engine *
 114 gf100_fifo_engine(struct gf100_fifo *fifo, u32 engn)
 115 {
 116         struct nvkm_device *device = fifo->base.engine.subdev.device;
 117
 118         switch (engn) {
 119         case 0: engn = NVKM_ENGINE_GR; break;
 120         case 1: engn = NVKM_ENGINE_MSVLD; break;
 121         case 2: engn = NVKM_ENGINE_MSPPP; break;
 122         case 3: engn = NVKM_ENGINE_MSPDEC; break;
 123         case 4: engn = NVKM_ENGINE_CE0; break;
 124         case 5: engn = NVKM_ENGINE_CE1; break;
 125         default:
 126                 return NULL;
 127         }
 128
 129         return nvkm_device_engine(device, engn);
 130 }
 131
 132 static void
 133 gf100_fifo_recover_work(struct work_struct *work)
 134 {
 135         struct gf100_fifo *fifo = container_of(work, typeof(*fifo), fault);
 136         struct nvkm_device *device = fifo->base.engine.subdev.device;
 137         struct nvkm_engine *engine;
 138         unsigned long flags;
 139         u32 engn, engm = 0;
 140         u64 mask, todo;
 141
 142         spin_lock_irqsave(&fifo->base.lock, flags);
 143         mask = fifo->mask;
 144         fifo->mask = 0ULL;
 145         spin_unlock_irqrestore(&fifo->base.lock, flags);
 146
 147         for (todo = mask; engn = __ffs64(todo), todo; todo &= ~(1 << engn))
 148                 engm |= 1 << gf100_fifo_engidx(fifo, engn);
 149         nvkm_mask(device, 0x002630, engm, engm);
 150
 151         for (todo = mask; engn = __ffs64(todo), todo; todo &= ~(1 << engn)) {
 152                 if ((engine = nvkm_device_engine(device, engn))) {
 153                         nvkm_subdev_fini(&engine->subdev, false);
 154                         WARN_ON(nvkm_subdev_init(&engine->subdev));
 155                 }
 156         }
 157
 158         gf100_fifo_runlist_commit(fifo);
 159         nvkm_wr32(device, 0x00262c, engm);
 160         nvkm_mask(device, 0x002630, engm, 0x00000000);
 161 }
 162
 163 static void
 164 gf100_fifo_recover(struct gf100_fifo *fifo, struct nvkm_engine *engine,
 165                    struct gf100_fifo_chan *chan)
 166 {
 167         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 168         struct nvkm_device *device = subdev->device;
 169         u32 chid = chan->base.chid;
 170
 171         nvkm_error(subdev, "%s engine fault on channel %d, recovering...\n",
 172                    nvkm_subdev_name[engine->subdev.index], chid);
 173         assert_spin_locked(&fifo->base.lock);
 174
 175         nvkm_mask(device, 0x003004 + (chid * 0x08), 0x00000001, 0x00000000);
 176         list_del_init(&chan->head);
 177         chan->killed = true;
 178
 179         fifo->mask |= 1ULL << engine->subdev.index;
 180         schedule_work(&fifo->fault);
 181 }
 182
 183 static const struct nvkm_enum
 184 gf100_fifo_sched_reason[] = {
 185         { 0x0a, "CTXSW_TIMEOUT" },
 186         {}
 187 };
 188
 189 static void
 190 gf100_fifo_intr_sched_ctxsw(struct gf100_fifo *fifo)
 191 {
 192         struct nvkm_device *device = fifo->base.engine.subdev.device;
 193         struct nvkm_engine *engine;
 194         struct gf100_fifo_chan *chan;
 195         unsigned long flags;
 196         u32 engn;
 197
 198         spin_lock_irqsave(&fifo->base.lock, flags);
 199         for (engn = 0; engn < 6; engn++) {
 200                 u32 stat = nvkm_rd32(device, 0x002640 + (engn * 0x04));
 201                 u32 busy = (stat & 0x80000000);
 202                 u32 save = (stat & 0x00100000); /* maybe? */
 203                 u32 unk0 = (stat & 0x00040000);
 204                 u32 unk1 = (stat & 0x00001000);
 205                 u32 chid = (stat & 0x0000007f);
 206                 (void)save;
 207
 208                 if (busy && unk0 && unk1) {
 209                         list_for_each_entry(chan, &fifo->chan, head) {
 210                                 if (chan->base.chid == chid) {
 211                                         engine = gf100_fifo_engine(fifo, engn);
 212                                         if (!engine)
 213                                                 break;
 214                                         gf100_fifo_recover(fifo, engine, chan);
 215                                         break;
 216                                 }
 217                         }
 218                 }
 219         }
 220         spin_unlock_irqrestore(&fifo->base.lock, flags);
 221 }
 222
 223 static void
 224 gf100_fifo_intr_sched(struct gf100_fifo *fifo)
 225 {
 226         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 227         struct nvkm_device *device = subdev->device;
 228         u32 intr = nvkm_rd32(device, 0x00254c);
 229         u32 code = intr & 0x000000ff;
 230         const struct nvkm_enum *en;
 231
 232         en = nvkm_enum_find(gf100_fifo_sched_reason, code);
 233
 234         nvkm_error(subdev, "SCHED_ERROR %02x [%s]\n", code, en ? en->name : "");
 235
 236         switch (code) {
 237         case 0x0a:
 238                 gf100_fifo_intr_sched_ctxsw(fifo);
 239                 break;
 240         default:
 241                 break;
 242         }
 243 }
 244
 245 static const struct nvkm_enum
 246 gf100_fifo_fault_engine[] = {
 247         { 0x00, "PGRAPH", NULL, NVKM_ENGINE_GR },
 248         { 0x03, "PEEPHOLE", NULL, NVKM_ENGINE_IFB },
 249         { 0x04, "BAR1", NULL, NVKM_SUBDEV_BAR },
 250         { 0x05, "BAR3", NULL, NVKM_SUBDEV_INSTMEM },
 251         { 0x07, "PFIFO", NULL, NVKM_ENGINE_FIFO },
 252         { 0x10, "PMSVLD", NULL, NVKM_ENGINE_MSVLD },
 253         { 0x11, "PMSPPP", NULL, NVKM_ENGINE_MSPPP },
 254         { 0x13, "PCOUNTER" },
 255         { 0x14, "PMSPDEC", NULL, NVKM_ENGINE_MSPDEC },
 256         { 0x15, "PCE0", NULL, NVKM_ENGINE_CE0 },
 257         { 0x16, "PCE1", NULL, NVKM_ENGINE_CE1 },
 258         { 0x17, "PMU" },
 259         {}
 260 };
 261
 262 static const struct nvkm_enum
 263 gf100_fifo_fault_reason[] = {
 264         { 0x00, "PT_NOT_PRESENT" },
 265         { 0x01, "PT_TOO_SHORT" },
 266         { 0x02, "PAGE_NOT_PRESENT" },
 267         { 0x03, "VM_LIMIT_EXCEEDED" },
 268         { 0x04, "NO_CHANNEL" },
 269         { 0x05, "PAGE_SYSTEM_ONLY" },
 270         { 0x06, "PAGE_READ_ONLY" },
 271         { 0x0a, "COMPRESSED_SYSRAM" },
 272         { 0x0c, "INVALID_STORAGE_TYPE" },
 273         {}
 274 };
 275
 276 static const struct nvkm_enum
 277 gf100_fifo_fault_hubclient[] = {
 278         { 0x01, "PCOPY0" },
 279         { 0x02, "PCOPY1" },
 280         { 0x04, "DISPATCH" },
 281         { 0x05, "CTXCTL" },
 282         { 0x06, "PFIFO" },
 283         { 0x07, "BAR_READ" },
 284         { 0x08, "BAR_WRITE" },
 285         { 0x0b, "PVP" },
 286         { 0x0c, "PMSPPP" },
 287         { 0x0d, "PMSVLD" },
 288         { 0x11, "PCOUNTER" },
 289         { 0x12, "PMU" },
 290         { 0x14, "CCACHE" },
 291         { 0x15, "CCACHE_POST" },
 292         {}
 293 };
 294
 295 static const struct nvkm_enum
 296 gf100_fifo_fault_gpcclient[] = {
 297         { 0x01, "TEX" },
 298         { 0x0c, "ESETUP" },
 299         { 0x0e, "CTXCTL" },
 300         { 0x0f, "PROP" },
 301         {}
 302 };
 303
 304 static void
 305 gf100_fifo_intr_fault(struct gf100_fifo *fifo, int unit)
 306 {
 307         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 308         struct nvkm_device *device = subdev->device;
 309         u32 inst = nvkm_rd32(device, 0x002800 + (unit * 0x10));
 310         u32 valo = nvkm_rd32(device, 0x002804 + (unit * 0x10));
 311         u32 vahi = nvkm_rd32(device, 0x002808 + (unit * 0x10));
 312         u32 stat = nvkm_rd32(device, 0x00280c + (unit * 0x10));
 313         u32 gpc    = (stat & 0x1f000000) >> 24;
 314         u32 client = (stat & 0x00001f00) >> 8;
 315         u32 write  = (stat & 0x00000080);
 316         u32 hub    = (stat & 0x00000040);
 317         u32 reason = (stat & 0x0000000f);
 318         const struct nvkm_enum *er, *eu, *ec;
 319         struct nvkm_engine *engine = NULL;
 320         struct nvkm_fifo_chan *chan;
 321         unsigned long flags;
 322         char gpcid[8] = "";
 323
 324         er = nvkm_enum_find(gf100_fifo_fault_reason, reason);
 325         eu = nvkm_enum_find(gf100_fifo_fault_engine, unit);
 326         if (hub) {
 327                 ec = nvkm_enum_find(gf100_fifo_fault_hubclient, client);
 328         } else {
 329                 ec = nvkm_enum_find(gf100_fifo_fault_gpcclient, client);
 330                 snprintf(gpcid, sizeof(gpcid), "GPC%d/", gpc);
 331         }
 332
 333         if (eu) {
 334                 switch (eu->data2) {
 335                 case NVKM_SUBDEV_BAR:
 336                         nvkm_mask(device, 0x001704, 0x00000000, 0x00000000);
 337                         break;
 338                 case NVKM_SUBDEV_INSTMEM:
 339                         nvkm_mask(device, 0x001714, 0x00000000, 0x00000000);
 340                         break;
 341                 case NVKM_ENGINE_IFB:
 342                         nvkm_mask(device, 0x001718, 0x00000000, 0x00000000);
 343                         break;
 344                 default:
 345                         engine = nvkm_device_engine(device, eu->data2);
 346                         break;
 347                 }
 348         }
 349
 350         chan = nvkm_fifo_chan_inst(&fifo->base, (u64)inst << 12, &flags);
 351
 352         nvkm_error(subdev,
 353                    "%s fault at %010llx engine %02x [%s] client %02x [%s%s] "
 354                    "reason %02x [%s] on channel %d [%010llx %s]\n",
 355                    write ? "write" : "read", (u64)vahi << 32 | valo,
 356                    unit, eu ? eu->name : "", client, gpcid, ec ? ec->name : "",
 357                    reason, er ? er->name : "", chan ? chan->chid : -1,
 358                    (u64)inst << 12,
 359                    chan ? chan->object.client->name : "unknown");
 360
 361         if (engine && chan)
 362                 gf100_fifo_recover(fifo, engine, (void *)chan);
 363         nvkm_fifo_chan_put(&fifo->base, flags, &chan);
 364 }
 365
 366 static const struct nvkm_bitfield
 367 gf100_fifo_pbdma_intr[] = {
 368 /*      { 0x00008000, "" }      seen with null ib push */
 369         { 0x00200000, "ILLEGAL_MTHD" },
 370         { 0x00800000, "EMPTY_SUBC" },
 371         {}
 372 };
 373
 374 static void
 375 gf100_fifo_intr_pbdma(struct gf100_fifo *fifo, int unit)
 376 {
 377         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 378         struct nvkm_device *device = subdev->device;
 379         u32 stat = nvkm_rd32(device, 0x040108 + (unit * 0x2000));
 380         u32 addr = nvkm_rd32(device, 0x0400c0 + (unit * 0x2000));
 381         u32 data = nvkm_rd32(device, 0x0400c4 + (unit * 0x2000));
 382         u32 chid = nvkm_rd32(device, 0x040120 + (unit * 0x2000)) & 0x7f;
 383         u32 subc = (addr & 0x00070000) >> 16;
 384         u32 mthd = (addr & 0x00003ffc);
 385         struct nvkm_fifo_chan *chan;
 386         unsigned long flags;
 387         u32 show= stat;
 388         char msg[128];
 389
 390         if (stat & 0x00800000) {
 391                 if (device->sw) {
 392                         if (nvkm_sw_mthd(device->sw, chid, subc, mthd, data))
 393                                 show &= ~0x00800000;
 394                 }
 395         }
 396
 397         if (show) {
 398                 nvkm_snprintbf(msg, sizeof(msg), gf100_fifo_pbdma_intr, show);
 399                 chan = nvkm_fifo_chan_chid(&fifo->base, chid, &flags);
 400                 nvkm_error(subdev, "PBDMA%d: %08x [%s] ch %d [%010llx %s] "
 401                                    "subc %d mthd %04x data %08x\n",
 402                            unit, show, msg, chid, chan ? chan->inst->addr : 0,
 403                            chan ? chan->object.client->name : "unknown",
 404                            subc, mthd, data);
 405                 nvkm_fifo_chan_put(&fifo->base, flags, &chan);
 406         }
 407
 408         nvkm_wr32(device, 0x0400c0 + (unit * 0x2000), 0x80600008);
 409         nvkm_wr32(device, 0x040108 + (unit * 0x2000), stat);
 410 }
 411
 412 static void
 413 gf100_fifo_intr_runlist(struct gf100_fifo *fifo)
 414 {
 415         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 416         struct nvkm_device *device = subdev->device;
 417         u32 intr = nvkm_rd32(device, 0x002a00);
 418
 419         if (intr & 0x10000000) {
 420                 wake_up(&fifo->runlist.wait);
 421                 nvkm_wr32(device, 0x002a00, 0x10000000);
 422                 intr &= ~0x10000000;
 423         }
 424
 425         if (intr) {
 426                 nvkm_error(subdev, "RUNLIST %08x\n", intr);
 427                 nvkm_wr32(device, 0x002a00, intr);
 428         }
 429 }
 430
 431 static void
 432 gf100_fifo_intr_engine_unit(struct gf100_fifo *fifo, int engn)
 433 {
 434         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 435         struct nvkm_device *device = subdev->device;
 436         u32 intr = nvkm_rd32(device, 0x0025a8 + (engn * 0x04));
 437         u32 inte = nvkm_rd32(device, 0x002628);
 438         u32 unkn;
 439
 440         nvkm_wr32(device, 0x0025a8 + (engn * 0x04), intr);
 441
 442         for (unkn = 0; unkn < 8; unkn++) {
 443                 u32 ints = (intr >> (unkn * 0x04)) & inte;
 444                 if (ints & 0x1) {
 445                         nvkm_fifo_uevent(&fifo->base);
 446                         ints &= ~1;
 447                 }
 448                 if (ints) {
 449                         nvkm_error(subdev, "ENGINE %d %d %01x",
 450                                    engn, unkn, ints);
 451                         nvkm_mask(device, 0x002628, ints, 0);
 452                 }
 453         }
 454 }
 455
 456 void
 457 gf100_fifo_intr_engine(struct gf100_fifo *fifo)
 458 {
 459         struct nvkm_device *device = fifo->base.engine.subdev.device;
 460         u32 mask = nvkm_rd32(device, 0x0025a4);
 461         while (mask) {
 462                 u32 unit = __ffs(mask);
 463                 gf100_fifo_intr_engine_unit(fifo, unit);
 464                 mask &= ~(1 << unit);
 465         }
 466 }
 467
 468 static void
 469 gf100_fifo_intr(struct nvkm_fifo *base)
 470 {
 471         struct gf100_fifo *fifo = gf100_fifo(base);
 472         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 473         struct nvkm_device *device = subdev->device;
 474         u32 mask = nvkm_rd32(device, 0x002140);
 475         u32 stat = nvkm_rd32(device, 0x002100) & mask;
 476
 477         if (stat & 0x00000001) {
 478                 u32 intr = nvkm_rd32(device, 0x00252c);
 479                 nvkm_warn(subdev, "INTR 00000001: %08x\n", intr);
 480                 nvkm_wr32(device, 0x002100, 0x00000001);
 481                 stat &= ~0x00000001;
 482         }
 483
 484         if (stat & 0x00000100) {
 485                 gf100_fifo_intr_sched(fifo);
 486                 nvkm_wr32(device, 0x002100, 0x00000100);
 487                 stat &= ~0x00000100;
 488         }
 489
 490         if (stat & 0x00010000) {
 491                 u32 intr = nvkm_rd32(device, 0x00256c);
 492                 nvkm_warn(subdev, "INTR 00010000: %08x\n", intr);
 493                 nvkm_wr32(device, 0x002100, 0x00010000);
 494                 stat &= ~0x00010000;
 495         }
 496
 497         if (stat & 0x01000000) {
 498                 u32 intr = nvkm_rd32(device, 0x00258c);
 499                 nvkm_warn(subdev, "INTR 01000000: %08x\n", intr);
 500                 nvkm_wr32(device, 0x002100, 0x01000000);
 501                 stat &= ~0x01000000;
 502         }
 503
 504         if (stat & 0x10000000) {
 505                 u32 mask = nvkm_rd32(device, 0x00259c);
 506                 while (mask) {
 507                         u32 unit = __ffs(mask);
 508                         gf100_fifo_intr_fault(fifo, unit);
 509                         nvkm_wr32(device, 0x00259c, (1 << unit));
 510                         mask &= ~(1 << unit);
 511                 }
 512                 stat &= ~0x10000000;
 513         }
 514
 515         if (stat & 0x20000000) {
 516                 u32 mask = nvkm_rd32(device, 0x0025a0);
 517                 while (mask) {
 518                         u32 unit = __ffs(mask);
 519                         gf100_fifo_intr_pbdma(fifo, unit);
 520                         nvkm_wr32(device, 0x0025a0, (1 << unit));
 521                         mask &= ~(1 << unit);
 522                 }
 523                 stat &= ~0x20000000;
 524         }
 525
 526         if (stat & 0x40000000) {
 527                 gf100_fifo_intr_runlist(fifo);
 528                 stat &= ~0x40000000;
 529         }
 530
 531         if (stat & 0x80000000) {
 532                 gf100_fifo_intr_engine(fifo);
 533                 stat &= ~0x80000000;
 534         }
 535
 536         if (stat) {
 537                 nvkm_error(subdev, "INTR %08x\n", stat);
 538                 nvkm_mask(device, 0x002140, stat, 0x00000000);
 539                 nvkm_wr32(device, 0x002100, stat);
 540         }
 541 }
 542
 543 static int
 544 gf100_fifo_oneinit(struct nvkm_fifo *base)
 545 {
 546         struct gf100_fifo *fifo = gf100_fifo(base);
 547         struct nvkm_device *device = fifo->base.engine.subdev.device;
 548         int ret;
 549
 550         ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000,
 551                               false, &fifo->runlist.mem[0]);
 552         if (ret)
 553                 return ret;
 554
 555         ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000,
 556                               false, &fifo->runlist.mem[1]);
 557         if (ret)
 558                 return ret;
 559
 560         init_waitqueue_head(&fifo->runlist.wait);
 561
 562         ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 128 * 0x1000,
 563                               0x1000, false, &fifo->user.mem);
 564         if (ret)
 565                 return ret;
 566
 567         ret = nvkm_bar_umap(device->bar, 128 * 0x1000, 12, &fifo->user.bar);
 568         if (ret)
 569                 return ret;
 570
 571         nvkm_memory_map(fifo->user.mem, &fifo->user.bar, 0);
 572         return 0;
 573 }
 574
 575 static void
 576 gf100_fifo_fini(struct nvkm_fifo *base)
 577 {
 578         struct gf100_fifo *fifo = gf100_fifo(base);
 579         flush_work(&fifo->fault);
 580 }
 581
 582 static void
 583 gf100_fifo_init(struct nvkm_fifo *base)
 584 {
 585         struct gf100_fifo *fifo = gf100_fifo(base);
 586         struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 587         struct nvkm_device *device = subdev->device;
 588         int i;
 589
 590         nvkm_wr32(device, 0x000204, 0xffffffff);
 591         nvkm_wr32(device, 0x002204, 0xffffffff);
 592
 593         fifo->spoon_nr = hweight32(nvkm_rd32(device, 0x002204));
 594         nvkm_debug(subdev, "%d PBDMA unit(s)\n", fifo->spoon_nr);
 595
 596         /* assign engines to PBDMAs */
 597         if (fifo->spoon_nr >= 3) {
 598                 nvkm_wr32(device, 0x002208, ~(1 << 0)); /* PGRAPH */
 599                 nvkm_wr32(device, 0x00220c, ~(1 << 1)); /* PVP */
 600                 nvkm_wr32(device, 0x002210, ~(1 << 1)); /* PMSPP */
 601                 nvkm_wr32(device, 0x002214, ~(1 << 1)); /* PMSVLD */
 602                 nvkm_wr32(device, 0x002218, ~(1 << 2)); /* PCE0 */
 603                 nvkm_wr32(device, 0x00221c, ~(1 << 1)); /* PCE1 */
 604         }
 605
 606         /* PBDMA[n] */
 607         for (i = 0; i < fifo->spoon_nr; i++) {
 608                 nvkm_mask(device, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
 609                 nvkm_wr32(device, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */
 610                 nvkm_wr32(device, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTREN */
 611         }
 612
 613         nvkm_mask(device, 0x002200, 0x00000001, 0x00000001);
 614         nvkm_wr32(device, 0x002254, 0x10000000 | fifo->user.bar.offset >> 12);
 615
 616         nvkm_wr32(device, 0x002100, 0xffffffff);
 617         nvkm_wr32(device, 0x002140, 0x7fffffff);
 618         nvkm_wr32(device, 0x002628, 0x00000001); /* ENGINE_INTR_EN */
 619 }
 620
 621 static void *
 622 gf100_fifo_dtor(struct nvkm_fifo *base)
 623 {
 624         struct gf100_fifo *fifo = gf100_fifo(base);
 625         nvkm_vm_put(&fifo->user.bar);
 626         nvkm_memory_del(&fifo->user.mem);
 627         nvkm_memory_del(&fifo->runlist.mem[0]);
 628         nvkm_memory_del(&fifo->runlist.mem[1]);
 629         return fifo;
 630 }
 631
 632 static const struct nvkm_fifo_func
 633 gf100_fifo = {
 634         .dtor = gf100_fifo_dtor,
 635         .oneinit = gf100_fifo_oneinit,
 636         .init = gf100_fifo_init,
 637         .fini = gf100_fifo_fini,
 638         .intr = gf100_fifo_intr,
 639         .uevent_init = gf100_fifo_uevent_init,
 640         .uevent_fini = gf100_fifo_uevent_fini,
 641         .chan = {
 642                 &gf100_fifo_gpfifo_oclass,
 643                 NULL
 644         },
 645 };
 646
 647 int
 648 gf100_fifo_new(struct nvkm_device *device, int index, struct nvkm_fifo **pfifo)
 649 {
 650         struct gf100_fifo *fifo;
 651
 652         if (!(fifo = kzalloc(sizeof(*fifo), GFP_KERNEL)))
 653                 return -ENOMEM;
 654         INIT_LIST_HEAD(&fifo->chan);
 655         INIT_WORK(&fifo->fault, gf100_fifo_recover_work);
 656         *pfifo = &fifo->base;
 657
 658         return nvkm_fifo_ctor(&gf100_fifo, device, index, 128, &fifo->base);
 659 }