diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 269 |
1 files changed, 179 insertions, 90 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 58088c663125..a26e769946b7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -64,11 +64,11 @@ static int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, return 0; } -static int amdgpu_cs_p1_ib(struct amdgpu_cs_parser *p, - struct drm_amdgpu_cs_chunk_ib *chunk_ib, - unsigned int *num_ibs) +static int amdgpu_cs_job_idx(struct amdgpu_cs_parser *p, + struct drm_amdgpu_cs_chunk_ib *chunk_ib) { struct drm_sched_entity *entity; + unsigned int i; int r; r = amdgpu_ctx_get_entity(p->ctx, chunk_ib->ip_type, @@ -77,17 +77,38 @@ static int amdgpu_cs_p1_ib(struct amdgpu_cs_parser *p, if (r) return r; - /* Abort if there is no run queue associated with this entity. - * Possibly because of disabled HW IP*/ + /* + * Abort if there is no run queue associated with this entity. + * Possibly because of disabled HW IP. + */ if (entity->rq == NULL) return -EINVAL; - /* Currently we don't support submitting to multiple entities */ - if (p->entity && p->entity != entity) + /* Check if we can add this IB to some existing job */ + for (i = 0; i < p->gang_size; ++i) + if (p->entities[i] == entity) + return i; + + /* If not increase the gang size if possible */ + if (i == AMDGPU_CS_GANG_SIZE) return -EINVAL; - p->entity = entity; - ++(*num_ibs); + p->entities[i] = entity; + p->gang_size = i + 1; + return i; +} + +static int amdgpu_cs_p1_ib(struct amdgpu_cs_parser *p, + struct drm_amdgpu_cs_chunk_ib *chunk_ib, + unsigned int *num_ibs) +{ + int r; + + r = amdgpu_cs_job_idx(p, chunk_ib); + if (r < 0) + return r; + + ++(num_ibs[r]); return 0; } @@ -161,11 +182,12 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p, union drm_amdgpu_cs *cs) { struct amdgpu_fpriv *fpriv = p->filp->driver_priv; + unsigned int num_ibs[AMDGPU_CS_GANG_SIZE] = { }; struct amdgpu_vm *vm = &fpriv->vm; uint64_t *chunk_array_user; uint64_t *chunk_array; - unsigned size, num_ibs = 0; uint32_t uf_offset = 0; + unsigned int size; int ret; int i; @@ -228,7 +250,7 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p, if (size < sizeof(struct drm_amdgpu_cs_chunk_ib)) goto free_partial_kdata; - ret = amdgpu_cs_p1_ib(p, p->chunks[i].kdata, &num_ibs); + ret = amdgpu_cs_p1_ib(p, p->chunks[i].kdata, num_ibs); if (ret) goto free_partial_kdata; break; @@ -265,21 +287,28 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p, } } - ret = amdgpu_job_alloc(p->adev, num_ibs, &p->job, vm); - if (ret) - goto free_all_kdata; + if (!p->gang_size) + return -EINVAL; - ret = drm_sched_job_init(&p->job->base, p->entity, &fpriv->vm); - if (ret) - goto free_all_kdata; + for (i = 0; i < p->gang_size; ++i) { + ret = amdgpu_job_alloc(p->adev, num_ibs[i], &p->jobs[i], vm); + if (ret) + goto free_all_kdata; - if (p->ctx->vram_lost_counter != p->job->vram_lost_counter) { + ret = drm_sched_job_init(&p->jobs[i]->base, p->entities[i], + &fpriv->vm); + if (ret) + goto free_all_kdata; + } + p->gang_leader = p->jobs[p->gang_size - 1]; + + if (p->ctx->vram_lost_counter != p->gang_leader->vram_lost_counter) { ret = -ECANCELED; goto free_all_kdata; } if (p->uf_entry.tv.bo) - p->job->uf_addr = uf_offset; + p->gang_leader->uf_addr = uf_offset; kvfree(chunk_array); /* Use this opportunity to fill in task info for the vm */ @@ -303,17 +332,25 @@ free_chunk: static int amdgpu_cs_p2_ib(struct amdgpu_cs_parser *p, struct amdgpu_cs_chunk *chunk, - unsigned int *num_ibs, unsigned int *ce_preempt, unsigned int *de_preempt) { struct drm_amdgpu_cs_chunk_ib *chunk_ib = chunk->kdata; struct amdgpu_fpriv *fpriv = p->filp->driver_priv; - struct amdgpu_ring *ring = amdgpu_job_ring(p->job); - struct amdgpu_ib *ib = &p->job->ibs[*num_ibs]; struct amdgpu_vm *vm = &fpriv->vm; + struct amdgpu_ring *ring; + struct amdgpu_job *job; + struct amdgpu_ib *ib; int r; + r = amdgpu_cs_job_idx(p, chunk_ib); + if (r < 0) + return r; + + job = p->jobs[r]; + ring = amdgpu_job_ring(job); + ib = &job->ibs[job->num_ibs++]; + /* MM engine doesn't support user fences */ if (p->uf_entry.tv.bo && ring->funcs->no_user_fence) return -EINVAL; @@ -332,7 +369,7 @@ static int amdgpu_cs_p2_ib(struct amdgpu_cs_parser *p, } if (chunk_ib->flags & AMDGPU_IB_FLAG_PREAMBLE) - p->job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT; + job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT; r = amdgpu_ib_get(p->adev, vm, ring->funcs->parse_cs ? chunk_ib->ib_bytes : 0, @@ -345,8 +382,6 @@ static int amdgpu_cs_p2_ib(struct amdgpu_cs_parser *p, ib->gpu_addr = chunk_ib->va_start; ib->length_dw = chunk_ib->ib_bytes / 4; ib->flags = chunk_ib->flags; - - (*num_ibs)++; return 0; } @@ -395,7 +430,7 @@ static int amdgpu_cs_p2_dependencies(struct amdgpu_cs_parser *p, dma_fence_put(old); } - r = amdgpu_sync_fence(&p->job->sync, fence); + r = amdgpu_sync_fence(&p->gang_leader->sync, fence); dma_fence_put(fence); if (r) return r; @@ -417,7 +452,7 @@ static int amdgpu_syncobj_lookup_and_add(struct amdgpu_cs_parser *p, return r; } - r = amdgpu_sync_fence(&p->job->sync, fence); + r = amdgpu_sync_fence(&p->gang_leader->sync, fence); dma_fence_put(fence); return r; @@ -540,7 +575,7 @@ static int amdgpu_cs_p2_syncobj_timeline_signal(struct amdgpu_cs_parser *p, static int amdgpu_cs_pass2(struct amdgpu_cs_parser *p) { - unsigned int num_ibs = 0, ce_preempt = 0, de_preempt = 0; + unsigned int ce_preempt = 0, de_preempt = 0; int i, r; for (i = 0; i < p->nchunks; ++i) { @@ -550,8 +585,7 @@ static int amdgpu_cs_pass2(struct amdgpu_cs_parser *p) switch (chunk->chunk_id) { case AMDGPU_CHUNK_ID_IB: - r = amdgpu_cs_p2_ib(p, chunk, &num_ibs, - &ce_preempt, &de_preempt); + r = amdgpu_cs_p2_ib(p, chunk, &ce_preempt, &de_preempt); if (r) return r; break; @@ -822,6 +856,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, struct amdgpu_vm *vm = &fpriv->vm; struct amdgpu_bo_list_entry *e; struct list_head duplicates; + unsigned int i; int r; INIT_LIST_HEAD(&p->validated); @@ -905,16 +940,6 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, e->bo_va = amdgpu_vm_bo_find(vm, bo); } - /* Move fence waiting after getting reservation lock of - * PD root. Then there is no need on a ctx mutex lock. - */ - r = amdgpu_ctx_wait_prev_fence(p->ctx, p->entity); - if (unlikely(r != 0)) { - if (r != -ERESTARTSYS) - DRM_ERROR("amdgpu_ctx_wait_prev_fence failed.\n"); - goto error_validate; - } - amdgpu_cs_get_threshold_for_moves(p->adev, &p->bytes_moved_threshold, &p->bytes_moved_vis_threshold); p->bytes_moved = 0; @@ -942,13 +967,16 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, if (r) goto error_validate; - p->job->uf_addr += amdgpu_bo_gpu_offset(uf); + p->gang_leader->uf_addr += amdgpu_bo_gpu_offset(uf); } amdgpu_cs_report_moved_bytes(p->adev, p->bytes_moved, p->bytes_moved_vis); - amdgpu_job_set_resources(p->job, p->bo_list->gds_obj, - p->bo_list->gws_obj, p->bo_list->oa_obj); + + for (i = 0; i < p->gang_size; ++i) + amdgpu_job_set_resources(p->jobs[i], p->bo_list->gds_obj, + p->bo_list->gws_obj, + p->bo_list->oa_obj); return 0; error_validate: @@ -967,20 +995,24 @@ out_free_user_pages: return r; } -static void trace_amdgpu_cs_ibs(struct amdgpu_cs_parser *parser) +static void trace_amdgpu_cs_ibs(struct amdgpu_cs_parser *p) { - int i; + int i, j; if (!trace_amdgpu_cs_enabled()) return; - for (i = 0; i < parser->job->num_ibs; i++) - trace_amdgpu_cs(parser, i); + for (i = 0; i < p->gang_size; ++i) { + struct amdgpu_job *job = p->jobs[i]; + + for (j = 0; j < job->num_ibs; ++j) + trace_amdgpu_cs(p, job, &job->ibs[j]); + } } -static int amdgpu_cs_patch_ibs(struct amdgpu_cs_parser *p) +static int amdgpu_cs_patch_ibs(struct amdgpu_cs_parser *p, + struct amdgpu_job *job) { - struct amdgpu_job *job = p->job; struct amdgpu_ring *ring = amdgpu_job_ring(job); unsigned int i; int r; @@ -1021,12 +1053,12 @@ static int amdgpu_cs_patch_ibs(struct amdgpu_cs_parser *p) memcpy(ib->ptr, kptr, ib->length_dw * 4); amdgpu_bo_kunmap(aobj); - r = amdgpu_ring_parse_cs(ring, p, p->job, ib); + r = amdgpu_ring_parse_cs(ring, p, job, ib); if (r) return r; } else { ib->ptr = (uint32_t *)kptr; - r = amdgpu_ring_patch_cs_in_place(ring, p, p->job, ib); + r = amdgpu_ring_patch_cs_in_place(ring, p, job, ib); amdgpu_bo_kunmap(aobj); if (r) return r; @@ -1036,19 +1068,31 @@ static int amdgpu_cs_patch_ibs(struct amdgpu_cs_parser *p) return 0; } +static int amdgpu_cs_patch_jobs(struct amdgpu_cs_parser *p) +{ + unsigned int i; + int r; + + for (i = 0; i < p->gang_size; ++i) { + r = amdgpu_cs_patch_ibs(p, p->jobs[i]); + if (r) + return r; + } + return 0; +} + static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p) { struct amdgpu_fpriv *fpriv = p->filp->driver_priv; + struct amdgpu_job *job = p->gang_leader; struct amdgpu_device *adev = p->adev; struct amdgpu_vm *vm = &fpriv->vm; struct amdgpu_bo_list_entry *e; struct amdgpu_bo_va *bo_va; struct amdgpu_bo *bo; + unsigned int i; int r; - if (!p->job->vm) - return 0; - r = amdgpu_vm_clear_freed(adev, vm, NULL); if (r) return r; @@ -1057,7 +1101,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p) if (r) return r; - r = amdgpu_sync_fence(&p->job->sync, fpriv->prt_va->last_pt_update); + r = amdgpu_sync_fence(&job->sync, fpriv->prt_va->last_pt_update); if (r) return r; @@ -1068,7 +1112,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p) if (r) return r; - r = amdgpu_sync_fence(&p->job->sync, bo_va->last_pt_update); + r = amdgpu_sync_fence(&job->sync, bo_va->last_pt_update); if (r) return r; } @@ -1087,7 +1131,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p) if (r) return r; - r = amdgpu_sync_fence(&p->job->sync, bo_va->last_pt_update); + r = amdgpu_sync_fence(&job->sync, bo_va->last_pt_update); if (r) return r; } @@ -1100,11 +1144,18 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p) if (r) return r; - r = amdgpu_sync_fence(&p->job->sync, vm->last_update); + r = amdgpu_sync_fence(&job->sync, vm->last_update); if (r) return r; - p->job->vm_pd_addr = amdgpu_gmc_pd_addr(vm->root.bo); + for (i = 0; i < p->gang_size; ++i) { + job = p->jobs[i]; + + if (!job->vm) + continue; + + job->vm_pd_addr = amdgpu_gmc_pd_addr(vm->root.bo); + } if (amdgpu_vm_debug) { /* Invalidate all BOs to test for userspace bugs */ @@ -1125,7 +1176,9 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p) static int amdgpu_cs_sync_rings(struct amdgpu_cs_parser *p) { struct amdgpu_fpriv *fpriv = p->filp->driver_priv; + struct amdgpu_job *leader = p->gang_leader; struct amdgpu_bo_list_entry *e; + unsigned int i; int r; list_for_each_entry(e, &p->validated, tv.head) { @@ -1135,12 +1188,23 @@ static int amdgpu_cs_sync_rings(struct amdgpu_cs_parser *p) sync_mode = amdgpu_bo_explicit_sync(bo) ? AMDGPU_SYNC_EXPLICIT : AMDGPU_SYNC_NE_OWNER; - r = amdgpu_sync_resv(p->adev, &p->job->sync, resv, sync_mode, + r = amdgpu_sync_resv(p->adev, &leader->sync, resv, sync_mode, &fpriv->vm); if (r) return r; } - return 0; + + for (i = 0; i < p->gang_size - 1; ++i) { + r = amdgpu_sync_clone(&leader->sync, &p->jobs[i]->sync); + if (r) + return r; + } + + r = amdgpu_ctx_wait_prev_fence(p->ctx, p->entities[p->gang_size - 1]); + if (r && r != -ERESTARTSYS) + DRM_ERROR("amdgpu_ctx_wait_prev_fence failed.\n"); + + return r; } static void amdgpu_cs_post_dependencies(struct amdgpu_cs_parser *p) @@ -1164,16 +1228,28 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, union drm_amdgpu_cs *cs) { struct amdgpu_fpriv *fpriv = p->filp->driver_priv; - struct drm_sched_entity *entity = p->entity; + struct amdgpu_job *leader = p->gang_leader; struct amdgpu_bo_list_entry *e; - struct amdgpu_job *job; + unsigned int i; uint64_t seq; int r; - job = p->job; - p->job = NULL; + for (i = 0; i < p->gang_size; ++i) + drm_sched_job_arm(&p->jobs[i]->base); - drm_sched_job_arm(&job->base); + for (i = 0; i < (p->gang_size - 1); ++i) { + struct dma_fence *fence; + + fence = &p->jobs[i]->base.s_fence->scheduled; + r = amdgpu_sync_fence(&leader->sync, fence); + if (r) + goto error_cleanup; + } + + if (p->gang_size > 1) { + for (i = 0; i < p->gang_size; ++i) + amdgpu_job_set_gang_leader(p->jobs[i], leader); + } /* No memory allocation is allowed while holding the notifier lock. * The lock is held until amdgpu_cs_submit is finished and fence is @@ -1191,45 +1267,57 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, } if (r) { r = -EAGAIN; - goto error_abort; + goto error_unlock; } - p->fence = dma_fence_get(&job->base.s_fence->finished); + p->fence = dma_fence_get(&leader->base.s_fence->finished); + list_for_each_entry(e, &p->validated, tv.head) { + + /* Everybody except for the gang leader uses READ */ + for (i = 0; i < (p->gang_size - 1); ++i) { + dma_resv_add_fence(e->tv.bo->base.resv, + &p->jobs[i]->base.s_fence->finished, + DMA_RESV_USAGE_READ); + } + + /* The gang leader is remembered as writer */ + e->tv.num_shared = 0; + } - seq = amdgpu_ctx_add_fence(p->ctx, entity, p->fence); + seq = amdgpu_ctx_add_fence(p->ctx, p->entities[p->gang_size - 1], + p->fence); amdgpu_cs_post_dependencies(p); - if ((job->preamble_status & AMDGPU_PREAMBLE_IB_PRESENT) && + if ((leader->preamble_status & AMDGPU_PREAMBLE_IB_PRESENT) && !p->ctx->preamble_presented) { - job->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST; + leader->preamble_status |= AMDGPU_PREAMBLE_IB_PRESENT_FIRST; p->ctx->preamble_presented = true; } cs->out.handle = seq; - job->uf_sequence = seq; + leader->uf_sequence = seq; - amdgpu_job_free_resources(job); - - trace_amdgpu_cs_ioctl(job); amdgpu_vm_bo_trace_cs(&fpriv->vm, &p->ticket); - drm_sched_entity_push_job(&job->base); + for (i = 0; i < p->gang_size; ++i) { + amdgpu_job_free_resources(p->jobs[i]); + trace_amdgpu_cs_ioctl(p->jobs[i]); + drm_sched_entity_push_job(&p->jobs[i]->base); + p->jobs[i] = NULL; + } amdgpu_vm_move_to_lru_tail(p->adev, &fpriv->vm); - - /* Make sure all BOs are remembered as writers */ - amdgpu_bo_list_for_each_entry(e, p->bo_list) - e->tv.num_shared = 0; - ttm_eu_fence_buffer_objects(&p->ticket, &p->validated, p->fence); + mutex_unlock(&p->adev->notifier_lock); mutex_unlock(&p->bo_list->bo_list_mutex); - return 0; -error_abort: - drm_sched_job_cleanup(&job->base); +error_unlock: mutex_unlock(&p->adev->notifier_lock); - amdgpu_job_free(job); + +error_cleanup: + for (i = 0; i < p->gang_size; ++i) + drm_sched_job_cleanup(&p->jobs[i]->base); return r; } @@ -1246,17 +1334,18 @@ static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser) dma_fence_put(parser->fence); - if (parser->ctx) { + if (parser->ctx) amdgpu_ctx_put(parser->ctx); - } if (parser->bo_list) amdgpu_bo_list_put(parser->bo_list); for (i = 0; i < parser->nchunks; i++) kvfree(parser->chunks[i].kdata); kvfree(parser->chunks); - if (parser->job) - amdgpu_job_free(parser->job); + for (i = 0; i < parser->gang_size; ++i) { + if (parser->jobs[i]) + amdgpu_job_free(parser->jobs[i]); + } if (parser->uf_entry.tv.bo) { struct amdgpu_bo *uf = ttm_to_amdgpu_bo(parser->uf_entry.tv.bo); @@ -1300,7 +1389,7 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) goto error_fini; } - r = amdgpu_cs_patch_ibs(&parser); + r = amdgpu_cs_patch_jobs(&parser); if (r) goto error_backoff; |