drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c

   1 /*
   2  * Copyright 2015 Advanced Micro Devices, 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: monk liu <monk.liu@amd.com>
  23  */
  24
  25 #include <drm/drm_auth.h>
  26 #include "amdgpu.h"
  27 #include "amdgpu_sched.h"
  28 #include "amdgpu_ras.h"
  29
  30 #define to_amdgpu_ctx_entity(e) \
  31         container_of((e), struct amdgpu_ctx_entity, entity)
  32
  33 const unsigned int amdgpu_ctx_num_entities[AMDGPU_HW_IP_NUM] = {
  34         [AMDGPU_HW_IP_GFX]      =       1,
  35         [AMDGPU_HW_IP_COMPUTE]  =       4,
  36         [AMDGPU_HW_IP_DMA]      =       2,
  37         [AMDGPU_HW_IP_UVD]      =       1,
  38         [AMDGPU_HW_IP_VCE]      =       1,
  39         [AMDGPU_HW_IP_UVD_ENC]  =       1,
  40         [AMDGPU_HW_IP_VCN_DEC]  =       1,
  41         [AMDGPU_HW_IP_VCN_ENC]  =       1,
  42         [AMDGPU_HW_IP_VCN_JPEG] =       1,
  43 };
  44
  45 static int amdgpu_ctx_priority_permit(struct drm_file *filp,
  46                                       enum drm_sched_priority priority)
  47 {
  48         if (priority < 0 || priority >= DRM_SCHED_PRIORITY_MAX)
  49                 return -EINVAL;
  50
  51         /* NORMAL and below are accessible by everyone */
  52         if (priority <= DRM_SCHED_PRIORITY_NORMAL)
  53                 return 0;
  54
  55         if (capable(CAP_SYS_NICE))
  56                 return 0;
  57
  58         if (drm_is_current_master(filp))
  59                 return 0;
  60
  61         return -EACCES;
  62 }
  63
  64 static enum gfx_pipe_priority amdgpu_ctx_sched_prio_to_compute_prio(enum drm_sched_priority prio)
  65 {
  66         switch (prio) {
  67         case DRM_SCHED_PRIORITY_HIGH_HW:
  68         case DRM_SCHED_PRIORITY_KERNEL:
  69                 return AMDGPU_GFX_PIPE_PRIO_HIGH;
  70         default:
  71                 return AMDGPU_GFX_PIPE_PRIO_NORMAL;
  72         }
  73 }
  74
  75 static int amdgpu_ctx_init_entity(struct amdgpu_ctx *ctx, const u32 hw_ip, const u32 ring)
  76 {
  77         struct amdgpu_device *adev = ctx->adev;
  78         struct amdgpu_ctx_entity *entity;
  79         struct drm_gpu_scheduler **scheds = NULL, *sched = NULL;
  80         unsigned num_scheds = 0;
  81         enum gfx_pipe_priority hw_prio;
  82         enum drm_sched_priority priority;
  83         int r;
  84
  85         entity = kcalloc(1, offsetof(typeof(*entity), fences[amdgpu_sched_jobs]),
  86                          GFP_KERNEL);
  87         if (!entity)
  88                 return  -ENOMEM;
  89
  90         entity->sequence = 1;
  91         priority = (ctx->override_priority == DRM_SCHED_PRIORITY_UNSET) ?
  92                                 ctx->init_priority : ctx->override_priority;
  93         switch (hw_ip) {
  94         case AMDGPU_HW_IP_GFX:
  95                 sched = &adev->gfx.gfx_ring[0].sched;
  96                 scheds = &sched;
  97                 num_scheds = 1;
  98                 break;
  99         case AMDGPU_HW_IP_COMPUTE:
 100                 hw_prio = amdgpu_ctx_sched_prio_to_compute_prio(priority);
 101                 scheds = adev->gfx.compute_prio_sched[hw_prio];
 102                 num_scheds = adev->gfx.num_compute_sched[hw_prio];
 103                 break;
 104         case AMDGPU_HW_IP_DMA:
 105                 scheds = adev->sdma.sdma_sched;
 106                 num_scheds = adev->sdma.num_sdma_sched;
 107                 break;
 108         case AMDGPU_HW_IP_UVD:
 109                 sched = &adev->uvd.inst[0].ring.sched;
 110                 scheds = &sched;
 111                 num_scheds = 1;
 112                 break;
 113         case AMDGPU_HW_IP_VCE:
 114                 sched = &adev->vce.ring[0].sched;
 115                 scheds = &sched;
 116                 num_scheds = 1;
 117                 break;
 118         case AMDGPU_HW_IP_UVD_ENC:
 119                 sched = &adev->uvd.inst[0].ring_enc[0].sched;
 120                 scheds = &sched;
 121                 num_scheds = 1;
 122                 break;
 123         case AMDGPU_HW_IP_VCN_DEC:
 124                 sched = drm_sched_pick_best(adev->vcn.vcn_dec_sched,
 125                                             adev->vcn.num_vcn_dec_sched);
 126                 scheds = &sched;
 127                 num_scheds = 1;
 128                 break;
 129         case AMDGPU_HW_IP_VCN_ENC:
 130                 sched = drm_sched_pick_best(adev->vcn.vcn_enc_sched,
 131                                             adev->vcn.num_vcn_enc_sched);
 132                 scheds = &sched;
 133                 num_scheds = 1;
 134                 break;
 135         case AMDGPU_HW_IP_VCN_JPEG:
 136                 scheds = adev->jpeg.jpeg_sched;
 137                 num_scheds =  adev->jpeg.num_jpeg_sched;
 138                 break;
 139         }
 140
 141         r = drm_sched_entity_init(&entity->entity, priority, scheds, num_scheds,
 142                                   &ctx->guilty);
 143         if (r)
 144                 goto error_free_entity;
 145
 146         ctx->entities[hw_ip][ring] = entity;
 147         return 0;
 148
 149 error_free_entity:
 150         kfree(entity);
 151
 152         return r;
 153 }
 154
 155 static int amdgpu_ctx_init(struct amdgpu_device *adev,
 156                            enum drm_sched_priority priority,
 157                            struct drm_file *filp,
 158                            struct amdgpu_ctx *ctx)
 159 {
 160         int r;
 161
 162         r = amdgpu_ctx_priority_permit(filp, priority);
 163         if (r)
 164                 return r;
 165
 166         memset(ctx, 0, sizeof(*ctx));
 167
 168         ctx->adev = adev;
 169
 170         kref_init(&ctx->refcount);
 171         spin_lock_init(&ctx->ring_lock);
 172         mutex_init(&ctx->lock);
 173
 174         ctx->reset_counter = atomic_read(&adev->gpu_reset_counter);
 175         ctx->reset_counter_query = ctx->reset_counter;
 176         ctx->vram_lost_counter = atomic_read(&adev->vram_lost_counter);
 177         ctx->init_priority = priority;
 178         ctx->override_priority = DRM_SCHED_PRIORITY_UNSET;
 179
 180         return 0;
 181
 182 }
 183
 184 static void amdgpu_ctx_fini_entity(struct amdgpu_ctx_entity *entity)
 185 {
 186
 187         int i;
 188
 189         if (!entity)
 190                 return;
 191
 192         for (i = 0; i < amdgpu_sched_jobs; ++i)
 193                 dma_fence_put(entity->fences[i]);
 194
 195         kfree(entity);
 196 }
 197
 198 static void amdgpu_ctx_fini(struct kref *ref)
 199 {
 200         struct amdgpu_ctx *ctx = container_of(ref, struct amdgpu_ctx, refcount);
 201         struct amdgpu_device *adev = ctx->adev;
 202         unsigned i, j;
 203
 204         if (!adev)
 205                 return;
 206
 207         for (i = 0; i < AMDGPU_HW_IP_NUM; ++i) {
 208                 for (j = 0; j < AMDGPU_MAX_ENTITY_NUM; ++j) {
 209                         amdgpu_ctx_fini_entity(ctx->entities[i][j]);
 210                         ctx->entities[i][j] = NULL;
 211                 }
 212         }
 213
 214         mutex_destroy(&ctx->lock);
 215         kfree(ctx);
 216 }
 217
 218 int amdgpu_ctx_get_entity(struct amdgpu_ctx *ctx, u32 hw_ip, u32 instance,
 219                           u32 ring, struct drm_sched_entity **entity)
 220 {
 221         int r;
 222
 223         if (hw_ip >= AMDGPU_HW_IP_NUM) {
 224                 DRM_ERROR("unknown HW IP type: %d\n", hw_ip);
 225                 return -EINVAL;
 226         }
 227
 228         /* Right now all IPs have only one instance - multiple rings. */
 229         if (instance != 0) {
 230                 DRM_DEBUG("invalid ip instance: %d\n", instance);
 231                 return -EINVAL;
 232         }
 233
 234         if (ring >= amdgpu_ctx_num_entities[hw_ip]) {
 235                 DRM_DEBUG("invalid ring: %d %d\n", hw_ip, ring);
 236                 return -EINVAL;
 237         }
 238
 239         if (ctx->entities[hw_ip][ring] == NULL) {
 240                 r = amdgpu_ctx_init_entity(ctx, hw_ip, ring);
 241                 if (r)
 242                         return r;
 243         }
 244
 245         *entity = &ctx->entities[hw_ip][ring]->entity;
 246         return 0;
 247 }
 248
 249 static int amdgpu_ctx_alloc(struct amdgpu_device *adev,
 250                             struct amdgpu_fpriv *fpriv,
 251                             struct drm_file *filp,
 252                             enum drm_sched_priority priority,
 253                             uint32_t *id)
 254 {
 255         struct amdgpu_ctx_mgr *mgr = &fpriv->ctx_mgr;
 256         struct amdgpu_ctx *ctx;
 257         int r;
 258
 259         ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
 260         if (!ctx)
 261                 return -ENOMEM;
 262
 263         mutex_lock(&mgr->lock);
 264         r = idr_alloc(&mgr->ctx_handles, ctx, 1, AMDGPU_VM_MAX_NUM_CTX, GFP_KERNEL);
 265         if (r < 0) {
 266                 mutex_unlock(&mgr->lock);
 267                 kfree(ctx);
 268                 return r;
 269         }
 270
 271         *id = (uint32_t)r;
 272         r = amdgpu_ctx_init(adev, priority, filp, ctx);
 273         if (r) {
 274                 idr_remove(&mgr->ctx_handles, *id);
 275                 *id = 0;
 276                 kfree(ctx);
 277         }
 278         mutex_unlock(&mgr->lock);
 279         return r;
 280 }
 281
 282 static void amdgpu_ctx_do_release(struct kref *ref)
 283 {
 284         struct amdgpu_ctx *ctx;
 285         u32 i, j;
 286
 287         ctx = container_of(ref, struct amdgpu_ctx, refcount);
 288         for (i = 0; i < AMDGPU_HW_IP_NUM; ++i) {
 289                 for (j = 0; j < amdgpu_ctx_num_entities[i]; ++j) {
 290                         if (!ctx->entities[i][j])
 291                                 continue;
 292
 293                         drm_sched_entity_destroy(&ctx->entities[i][j]->entity);
 294                 }
 295         }
 296
 297         amdgpu_ctx_fini(ref);
 298 }
 299
 300 static int amdgpu_ctx_free(struct amdgpu_fpriv *fpriv, uint32_t id)
 301 {
 302         struct amdgpu_ctx_mgr *mgr = &fpriv->ctx_mgr;
 303         struct amdgpu_ctx *ctx;
 304
 305         mutex_lock(&mgr->lock);
 306         ctx = idr_remove(&mgr->ctx_handles, id);
 307         if (ctx)
 308                 kref_put(&ctx->refcount, amdgpu_ctx_do_release);
 309         mutex_unlock(&mgr->lock);
 310         return ctx ? 0 : -EINVAL;
 311 }
 312
 313 static int amdgpu_ctx_query(struct amdgpu_device *adev,
 314                             struct amdgpu_fpriv *fpriv, uint32_t id,
 315                             union drm_amdgpu_ctx_out *out)
 316 {
 317         struct amdgpu_ctx *ctx;
 318         struct amdgpu_ctx_mgr *mgr;
 319         unsigned reset_counter;
 320
 321         if (!fpriv)
 322                 return -EINVAL;
 323
 324         mgr = &fpriv->ctx_mgr;
 325         mutex_lock(&mgr->lock);
 326         ctx = idr_find(&mgr->ctx_handles, id);
 327         if (!ctx) {
 328                 mutex_unlock(&mgr->lock);
 329                 return -EINVAL;
 330         }
 331
 332         /* TODO: these two are always zero */
 333         out->state.flags = 0x0;
 334         out->state.hangs = 0x0;
 335
 336         /* determine if a GPU reset has occured since the last call */
 337         reset_counter = atomic_read(&adev->gpu_reset_counter);
 338         /* TODO: this should ideally return NO, GUILTY, or INNOCENT. */
 339         if (ctx->reset_counter_query == reset_counter)
 340                 out->state.reset_status = AMDGPU_CTX_NO_RESET;
 341         else
 342                 out->state.reset_status = AMDGPU_CTX_UNKNOWN_RESET;
 343         ctx->reset_counter_query = reset_counter;
 344
 345         mutex_unlock(&mgr->lock);
 346         return 0;
 347 }
 348
 349 static int amdgpu_ctx_query2(struct amdgpu_device *adev,
 350         struct amdgpu_fpriv *fpriv, uint32_t id,
 351         union drm_amdgpu_ctx_out *out)
 352 {
 353         struct amdgpu_ctx *ctx;
 354         struct amdgpu_ctx_mgr *mgr;
 355         unsigned long ras_counter;
 356
 357         if (!fpriv)
 358                 return -EINVAL;
 359
 360         mgr = &fpriv->ctx_mgr;
 361         mutex_lock(&mgr->lock);
 362         ctx = idr_find(&mgr->ctx_handles, id);
 363         if (!ctx) {
 364                 mutex_unlock(&mgr->lock);
 365                 return -EINVAL;
 366         }
 367
 368         out->state.flags = 0x0;
 369         out->state.hangs = 0x0;
 370
 371         if (ctx->reset_counter != atomic_read(&adev->gpu_reset_counter))
 372                 out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RESET;
 373
 374         if (ctx->vram_lost_counter != atomic_read(&adev->vram_lost_counter))
 375                 out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_VRAMLOST;
 376
 377         if (atomic_read(&ctx->guilty))
 378                 out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_GUILTY;
 379
 380         /*query ue count*/
 381         ras_counter = amdgpu_ras_query_error_count(adev, false);
 382         /*ras counter is monotonic increasing*/
 383         if (ras_counter != ctx->ras_counter_ue) {
 384                 out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_UE;
 385                 ctx->ras_counter_ue = ras_counter;
 386         }
 387
 388         /*query ce count*/
 389         ras_counter = amdgpu_ras_query_error_count(adev, true);
 390         if (ras_counter != ctx->ras_counter_ce) {
 391                 out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_CE;
 392                 ctx->ras_counter_ce = ras_counter;
 393         }
 394
 395         mutex_unlock(&mgr->lock);
 396         return 0;
 397 }
 398
 399 int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,
 400                      struct drm_file *filp)
 401 {
 402         int r;
 403         uint32_t id;
 404         enum drm_sched_priority priority;
 405
 406         union drm_amdgpu_ctx *args = data;
 407         struct amdgpu_device *adev = dev->dev_private;
 408         struct amdgpu_fpriv *fpriv = filp->driver_priv;
 409
 410         r = 0;
 411         id = args->in.ctx_id;
 412         priority = amdgpu_to_sched_priority(args->in.priority);
 413
 414         /* For backwards compatibility reasons, we need to accept
 415          * ioctls with garbage in the priority field */
 416         if (priority == DRM_SCHED_PRIORITY_INVALID)
 417                 priority = DRM_SCHED_PRIORITY_NORMAL;
 418
 419         switch (args->in.op) {
 420         case AMDGPU_CTX_OP_ALLOC_CTX:
 421                 r = amdgpu_ctx_alloc(adev, fpriv, filp, priority, &id);
 422                 args->out.alloc.ctx_id = id;
 423                 break;
 424         case AMDGPU_CTX_OP_FREE_CTX:
 425                 r = amdgpu_ctx_free(fpriv, id);
 426                 break;
 427         case AMDGPU_CTX_OP_QUERY_STATE:
 428                 r = amdgpu_ctx_query(adev, fpriv, id, &args->out);
 429                 break;
 430         case AMDGPU_CTX_OP_QUERY_STATE2:
 431                 r = amdgpu_ctx_query2(adev, fpriv, id, &args->out);
 432                 break;
 433         default:
 434                 return -EINVAL;
 435         }
 436
 437         return r;
 438 }
 439
 440 struct amdgpu_ctx *amdgpu_ctx_get(struct amdgpu_fpriv *fpriv, uint32_t id)
 441 {
 442         struct amdgpu_ctx *ctx;
 443         struct amdgpu_ctx_mgr *mgr;
 444
 445         if (!fpriv)
 446                 return NULL;
 447
 448         mgr = &fpriv->ctx_mgr;
 449
 450         mutex_lock(&mgr->lock);
 451         ctx = idr_find(&mgr->ctx_handles, id);
 452         if (ctx)
 453                 kref_get(&ctx->refcount);
 454         mutex_unlock(&mgr->lock);
 455         return ctx;
 456 }
 457
 458 int amdgpu_ctx_put(struct amdgpu_ctx *ctx)
 459 {
 460         if (ctx == NULL)
 461                 return -EINVAL;
 462
 463         kref_put(&ctx->refcount, amdgpu_ctx_do_release);
 464         return 0;
 465 }
 466
 467 void amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
 468                           struct drm_sched_entity *entity,
 469                           struct dma_fence *fence, uint64_t* handle)
 470 {
 471         struct amdgpu_ctx_entity *centity = to_amdgpu_ctx_entity(entity);
 472         uint64_t seq = centity->sequence;
 473         struct dma_fence *other = NULL;
 474         unsigned idx = 0;
 475
 476         idx = seq & (amdgpu_sched_jobs - 1);
 477         other = centity->fences[idx];
 478         if (other)
 479                 BUG_ON(!dma_fence_is_signaled(other));
 480
 481         dma_fence_get(fence);
 482
 483         spin_lock(&ctx->ring_lock);
 484         centity->fences[idx] = fence;
 485         centity->sequence++;
 486         spin_unlock(&ctx->ring_lock);
 487
 488         dma_fence_put(other);
 489         if (handle)
 490                 *handle = seq;
 491 }
 492
 493 struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
 494                                        struct drm_sched_entity *entity,
 495                                        uint64_t seq)
 496 {
 497         struct amdgpu_ctx_entity *centity = to_amdgpu_ctx_entity(entity);
 498         struct dma_fence *fence;
 499
 500         spin_lock(&ctx->ring_lock);
 501
 502         if (seq == ~0ull)
 503                 seq = centity->sequence - 1;
 504
 505         if (seq >= centity->sequence) {
 506                 spin_unlock(&ctx->ring_lock);
 507                 return ERR_PTR(-EINVAL);
 508         }
 509
 510
 511         if (seq + amdgpu_sched_jobs < centity->sequence) {
 512                 spin_unlock(&ctx->ring_lock);
 513                 return NULL;
 514         }
 515
 516         fence = dma_fence_get(centity->fences[seq & (amdgpu_sched_jobs - 1)]);
 517         spin_unlock(&ctx->ring_lock);
 518
 519         return fence;
 520 }
 521
 522 static void amdgpu_ctx_set_entity_priority(struct amdgpu_ctx *ctx,
 523                                             struct amdgpu_ctx_entity *aentity,
 524                                             int hw_ip,
 525                                             enum drm_sched_priority priority)
 526 {
 527         struct amdgpu_device *adev = ctx->adev;
 528         enum gfx_pipe_priority hw_prio;
 529         struct drm_gpu_scheduler **scheds = NULL;
 530         unsigned num_scheds;
 531
 532         /* set sw priority */
 533         drm_sched_entity_set_priority(&aentity->entity, priority);
 534
 535         /* set hw priority */
 536         if (hw_ip == AMDGPU_HW_IP_COMPUTE) {
 537                 hw_prio = amdgpu_ctx_sched_prio_to_compute_prio(priority);
 538                 scheds = adev->gfx.compute_prio_sched[hw_prio];
 539                 num_scheds = adev->gfx.num_compute_sched[hw_prio];
 540                 drm_sched_entity_modify_sched(&aentity->entity, scheds,
 541                                               num_scheds);
 542         }
 543 }
 544
 545 void amdgpu_ctx_priority_override(struct amdgpu_ctx *ctx,
 546                                   enum drm_sched_priority priority)
 547 {
 548         enum drm_sched_priority ctx_prio;
 549         unsigned i, j;
 550
 551         ctx->override_priority = priority;
 552
 553         ctx_prio = (ctx->override_priority == DRM_SCHED_PRIORITY_UNSET) ?
 554                         ctx->init_priority : ctx->override_priority;
 555         for (i = 0; i < AMDGPU_HW_IP_NUM; ++i) {
 556                 for (j = 0; j < amdgpu_ctx_num_entities[i]; ++j) {
 557                         if (!ctx->entities[i][j])
 558                                 continue;
 559
 560                         amdgpu_ctx_set_entity_priority(ctx, ctx->entities[i][j],
 561                                                        i, ctx_prio);
 562                 }
 563         }
 564 }
 565
 566 int amdgpu_ctx_wait_prev_fence(struct amdgpu_ctx *ctx,
 567                                struct drm_sched_entity *entity)
 568 {
 569         struct amdgpu_ctx_entity *centity = to_amdgpu_ctx_entity(entity);
 570         struct dma_fence *other;
 571         unsigned idx;
 572         long r;
 573
 574         spin_lock(&ctx->ring_lock);
 575         idx = centity->sequence & (amdgpu_sched_jobs - 1);
 576         other = dma_fence_get(centity->fences[idx]);
 577         spin_unlock(&ctx->ring_lock);
 578
 579         if (!other)
 580                 return 0;
 581
 582         r = dma_fence_wait(other, true);
 583         if (r < 0 && r != -ERESTARTSYS)
 584                 DRM_ERROR("Error (%ld) waiting for fence!\n", r);
 585
 586         dma_fence_put(other);
 587         return r;
 588 }
 589
 590 void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr)
 591 {
 592         mutex_init(&mgr->lock);
 593         idr_init(&mgr->ctx_handles);
 594 }
 595
 596 long amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr, long timeout)
 597 {
 598         struct amdgpu_ctx *ctx;
 599         struct idr *idp;
 600         uint32_t id, i, j;
 601
 602         idp = &mgr->ctx_handles;
 603
 604         mutex_lock(&mgr->lock);
 605         idr_for_each_entry(idp, ctx, id) {
 606                 for (i = 0; i < AMDGPU_HW_IP_NUM; ++i) {
 607                         for (j = 0; j < amdgpu_ctx_num_entities[i]; ++j) {
 608                                 struct drm_sched_entity *entity;
 609
 610                                 if (!ctx->entities[i][j])
 611                                         continue;
 612
 613                                 entity = &ctx->entities[i][j]->entity;
 614                                 timeout = drm_sched_entity_flush(entity, timeout);
 615                         }
 616                 }
 617         }
 618         mutex_unlock(&mgr->lock);
 619         return timeout;
 620 }
 621
 622 void amdgpu_ctx_mgr_entity_fini(struct amdgpu_ctx_mgr *mgr)
 623 {
 624         struct amdgpu_ctx *ctx;
 625         struct idr *idp;
 626         uint32_t id, i, j;
 627
 628         idp = &mgr->ctx_handles;
 629
 630         idr_for_each_entry(idp, ctx, id) {
 631                 if (kref_read(&ctx->refcount) != 1) {
 632                         DRM_ERROR("ctx %p is still alive\n", ctx);
 633                         continue;
 634                 }
 635
 636                 for (i = 0; i < AMDGPU_HW_IP_NUM; ++i) {
 637                         for (j = 0; j < amdgpu_ctx_num_entities[i]; ++j) {
 638                                 struct drm_sched_entity *entity;
 639
 640                                 if (!ctx->entities[i][j])
 641                                         continue;
 642
 643                                 entity = &ctx->entities[i][j]->entity;
 644                                 drm_sched_entity_fini(entity);
 645                         }
 646                 }
 647         }
 648 }
 649
 650 void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr)
 651 {
 652         struct amdgpu_ctx *ctx;
 653         struct idr *idp;
 654         uint32_t id;
 655
 656         amdgpu_ctx_mgr_entity_fini(mgr);
 657
 658         idp = &mgr->ctx_handles;
 659
 660         idr_for_each_entry(idp, ctx, id) {
 661                 if (kref_put(&ctx->refcount, amdgpu_ctx_fini) != 1)
 662                         DRM_ERROR("ctx %p is still alive\n", ctx);
 663         }
 664
 665         idr_destroy(&mgr->ctx_handles);
 666         mutex_destroy(&mgr->lock);
 667 }
 668
 669
 670 static void amdgpu_ctx_init_compute_sched(struct amdgpu_device *adev)
 671 {
 672         int num_compute_sched_normal = 0;
 673         int num_compute_sched_high = AMDGPU_MAX_COMPUTE_RINGS - 1;
 674         int i;
 675
 676         /* use one drm sched array, gfx.compute_sched to store both high and
 677          * normal priority drm compute schedulers */
 678         for (i = 0; i < adev->gfx.num_compute_rings; i++) {
 679                 if (!adev->gfx.compute_ring[i].has_high_prio)
 680                         adev->gfx.compute_sched[num_compute_sched_normal++] =
 681                                 &adev->gfx.compute_ring[i].sched;
 682                 else
 683                         adev->gfx.compute_sched[num_compute_sched_high--] =
 684                                 &adev->gfx.compute_ring[i].sched;
 685         }
 686
 687         /* compute ring only has two priority for now */
 688         i = AMDGPU_GFX_PIPE_PRIO_NORMAL;
 689         adev->gfx.compute_prio_sched[i] = &adev->gfx.compute_sched[0];
 690         adev->gfx.num_compute_sched[i] = num_compute_sched_normal;
 691
 692         i = AMDGPU_GFX_PIPE_PRIO_HIGH;
 693         if (num_compute_sched_high == (AMDGPU_MAX_COMPUTE_RINGS - 1)) {
 694                 /* When compute has no high priority rings then use */
 695                 /* normal priority sched array */
 696                 adev->gfx.compute_prio_sched[i] = &adev->gfx.compute_sched[0];
 697                 adev->gfx.num_compute_sched[i] = num_compute_sched_normal;
 698         } else {
 699                 adev->gfx.compute_prio_sched[i] =
 700                         &adev->gfx.compute_sched[num_compute_sched_high - 1];
 701                 adev->gfx.num_compute_sched[i] =
 702                         adev->gfx.num_compute_rings - num_compute_sched_normal;
 703         }
 704 }
 705
 706 void amdgpu_ctx_init_sched(struct amdgpu_device *adev)
 707 {
 708         int i, j;
 709
 710         amdgpu_ctx_init_compute_sched(adev);
 711         for (i = 0; i < adev->gfx.num_gfx_rings; i++) {
 712                 adev->gfx.gfx_sched[i] = &adev->gfx.gfx_ring[i].sched;
 713                 adev->gfx.num_gfx_sched++;
 714         }
 715
 716         for (i = 0; i < adev->sdma.num_instances; i++) {
 717                 adev->sdma.sdma_sched[i] = &adev->sdma.instance[i].ring.sched;
 718                 adev->sdma.num_sdma_sched++;
 719         }
 720
 721         for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
 722                 if (adev->vcn.harvest_config & (1 << i))
 723                         continue;
 724                 adev->vcn.vcn_dec_sched[adev->vcn.num_vcn_dec_sched++] =
 725                         &adev->vcn.inst[i].ring_dec.sched;
 726         }
 727
 728         for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
 729                 if (adev->vcn.harvest_config & (1 << i))
 730                         continue;
 731                 for (j = 0; j < adev->vcn.num_enc_rings; ++j)
 732                         adev->vcn.vcn_enc_sched[adev->vcn.num_vcn_enc_sched++] =
 733                                 &adev->vcn.inst[i].ring_enc[j].sched;
 734         }
 735
 736         for (i = 0; i < adev->jpeg.num_jpeg_inst; ++i) {
 737                 if (adev->jpeg.harvest_config & (1 << i))
 738                         continue;
 739                 adev->jpeg.jpeg_sched[adev->jpeg.num_jpeg_sched++] =
 740                         &adev->jpeg.inst[i].ring_dec.sched;
 741         }
 742 }