| /* |
| * Copyright © 2008 Jérôme Glisse |
| * Copyright © 2010 Marek Olšák <maraeo@gmail.com> |
| * Copyright © 2015 Advanced Micro Devices, Inc. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
| * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS |
| * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| */ |
| |
| #include "amdgpu_cs.h" |
| #include "os/os_time.h" |
| #include <stdio.h> |
| |
| #include "amd/common/sid.h" |
| |
| DEBUG_GET_ONCE_BOOL_OPTION(noop, "RADEON_NOOP", false) |
| |
| /* FENCES */ |
| |
| static struct pipe_fence_handle * |
| amdgpu_fence_create(struct amdgpu_ctx *ctx, unsigned ip_type, |
| unsigned ip_instance, unsigned ring) |
| { |
| struct amdgpu_fence *fence = CALLOC_STRUCT(amdgpu_fence); |
| |
| fence->reference.count = 1; |
| fence->ws = ctx->ws; |
| fence->ctx = ctx; |
| fence->fence.context = ctx->ctx; |
| fence->fence.ip_type = ip_type; |
| fence->fence.ip_instance = ip_instance; |
| fence->fence.ring = ring; |
| fence->submission_in_progress = true; |
| p_atomic_inc(&ctx->refcount); |
| return (struct pipe_fence_handle *)fence; |
| } |
| |
| static struct pipe_fence_handle * |
| amdgpu_fence_import_sync_file(struct radeon_winsys *rws, int fd) |
| { |
| struct amdgpu_winsys *ws = amdgpu_winsys(rws); |
| struct amdgpu_fence *fence = CALLOC_STRUCT(amdgpu_fence); |
| |
| if (!fence) |
| return NULL; |
| |
| pipe_reference_init(&fence->reference, 1); |
| fence->ws = ws; |
| /* fence->ctx == NULL means that the fence is syncobj-based. */ |
| |
| /* Convert sync_file into syncobj. */ |
| int r = amdgpu_cs_create_syncobj(ws->dev, &fence->syncobj); |
| if (r) { |
| FREE(fence); |
| return NULL; |
| } |
| |
| r = amdgpu_cs_syncobj_import_sync_file(ws->dev, fence->syncobj, fd); |
| if (r) { |
| amdgpu_cs_destroy_syncobj(ws->dev, fence->syncobj); |
| FREE(fence); |
| return NULL; |
| } |
| return (struct pipe_fence_handle*)fence; |
| } |
| |
| static int amdgpu_fence_export_sync_file(struct radeon_winsys *rws, |
| struct pipe_fence_handle *pfence) |
| { |
| struct amdgpu_winsys *ws = amdgpu_winsys(rws); |
| struct amdgpu_fence *fence = (struct amdgpu_fence*)pfence; |
| |
| if (amdgpu_fence_is_syncobj(fence)) { |
| int fd, r; |
| |
| /* Convert syncobj into sync_file. */ |
| r = amdgpu_cs_syncobj_export_sync_file(ws->dev, fence->syncobj, &fd); |
| return r ? -1 : fd; |
| } |
| |
| os_wait_until_zero(&fence->submission_in_progress, PIPE_TIMEOUT_INFINITE); |
| |
| /* Convert the amdgpu fence into a fence FD. */ |
| int fd; |
| if (amdgpu_cs_fence_to_handle(ws->dev, &fence->fence, |
| AMDGPU_FENCE_TO_HANDLE_GET_SYNC_FILE_FD, |
| (uint32_t*)&fd)) |
| return -1; |
| |
| return fd; |
| } |
| |
| static void amdgpu_fence_submitted(struct pipe_fence_handle *fence, |
| uint64_t seq_no, |
| uint64_t *user_fence_cpu_address) |
| { |
| struct amdgpu_fence *rfence = (struct amdgpu_fence*)fence; |
| |
| rfence->fence.fence = seq_no; |
| rfence->user_fence_cpu_address = user_fence_cpu_address; |
| rfence->submission_in_progress = false; |
| } |
| |
| static void amdgpu_fence_signalled(struct pipe_fence_handle *fence) |
| { |
| struct amdgpu_fence *rfence = (struct amdgpu_fence*)fence; |
| |
| rfence->signalled = true; |
| rfence->submission_in_progress = false; |
| } |
| |
| bool amdgpu_fence_wait(struct pipe_fence_handle *fence, uint64_t timeout, |
| bool absolute) |
| { |
| struct amdgpu_fence *rfence = (struct amdgpu_fence*)fence; |
| uint32_t expired; |
| int64_t abs_timeout; |
| uint64_t *user_fence_cpu; |
| int r; |
| |
| if (rfence->signalled) |
| return true; |
| |
| /* Handle syncobjs. */ |
| if (amdgpu_fence_is_syncobj(rfence)) { |
| /* Absolute timeouts are only be used by BO fences, which aren't |
| * backed by syncobjs. |
| */ |
| assert(!absolute); |
| |
| if (amdgpu_cs_syncobj_wait(rfence->ws->dev, &rfence->syncobj, 1, |
| timeout, 0, NULL)) |
| return false; |
| |
| rfence->signalled = true; |
| return true; |
| } |
| |
| if (absolute) |
| abs_timeout = timeout; |
| else |
| abs_timeout = os_time_get_absolute_timeout(timeout); |
| |
| /* The fence might not have a number assigned if its IB is being |
| * submitted in the other thread right now. Wait until the submission |
| * is done. */ |
| if (!os_wait_until_zero_abs_timeout(&rfence->submission_in_progress, |
| abs_timeout)) |
| return false; |
| |
| user_fence_cpu = rfence->user_fence_cpu_address; |
| if (user_fence_cpu) { |
| if (*user_fence_cpu >= rfence->fence.fence) { |
| rfence->signalled = true; |
| return true; |
| } |
| |
| /* No timeout, just query: no need for the ioctl. */ |
| if (!absolute && !timeout) |
| return false; |
| } |
| |
| /* Now use the libdrm query. */ |
| r = amdgpu_cs_query_fence_status(&rfence->fence, |
| abs_timeout, |
| AMDGPU_QUERY_FENCE_TIMEOUT_IS_ABSOLUTE, |
| &expired); |
| if (r) { |
| fprintf(stderr, "amdgpu: amdgpu_cs_query_fence_status failed.\n"); |
| return false; |
| } |
| |
| if (expired) { |
| /* This variable can only transition from false to true, so it doesn't |
| * matter if threads race for it. */ |
| rfence->signalled = true; |
| return true; |
| } |
| return false; |
| } |
| |
| static bool amdgpu_fence_wait_rel_timeout(struct radeon_winsys *rws, |
| struct pipe_fence_handle *fence, |
| uint64_t timeout) |
| { |
| return amdgpu_fence_wait(fence, timeout, false); |
| } |
| |
| static struct pipe_fence_handle * |
| amdgpu_cs_get_next_fence(struct radeon_winsys_cs *rcs) |
| { |
| struct amdgpu_cs *cs = amdgpu_cs(rcs); |
| struct pipe_fence_handle *fence = NULL; |
| |
| if (debug_get_option_noop()) |
| return NULL; |
| |
| if (cs->next_fence) { |
| amdgpu_fence_reference(&fence, cs->next_fence); |
| return fence; |
| } |
| |
| fence = amdgpu_fence_create(cs->ctx, |
| cs->csc->ib[IB_MAIN].ip_type, |
| cs->csc->ib[IB_MAIN].ip_instance, |
| cs->csc->ib[IB_MAIN].ring); |
| if (!fence) |
| return NULL; |
| |
| amdgpu_fence_reference(&cs->next_fence, fence); |
| return fence; |
| } |
| |
| /* CONTEXTS */ |
| |
| static struct radeon_winsys_ctx *amdgpu_ctx_create(struct radeon_winsys *ws) |
| { |
| struct amdgpu_ctx *ctx = CALLOC_STRUCT(amdgpu_ctx); |
| int r; |
| struct amdgpu_bo_alloc_request alloc_buffer = {}; |
| amdgpu_bo_handle buf_handle; |
| |
| if (!ctx) |
| return NULL; |
| |
| ctx->ws = amdgpu_winsys(ws); |
| ctx->refcount = 1; |
| ctx->initial_num_total_rejected_cs = ctx->ws->num_total_rejected_cs; |
| |
| r = amdgpu_cs_ctx_create(ctx->ws->dev, &ctx->ctx); |
| if (r) { |
| fprintf(stderr, "amdgpu: amdgpu_cs_ctx_create failed. (%i)\n", r); |
| goto error_create; |
| } |
| |
| alloc_buffer.alloc_size = ctx->ws->info.gart_page_size; |
| alloc_buffer.phys_alignment = ctx->ws->info.gart_page_size; |
| alloc_buffer.preferred_heap = AMDGPU_GEM_DOMAIN_GTT; |
| |
| r = amdgpu_bo_alloc(ctx->ws->dev, &alloc_buffer, &buf_handle); |
| if (r) { |
| fprintf(stderr, "amdgpu: amdgpu_bo_alloc failed. (%i)\n", r); |
| goto error_user_fence_alloc; |
| } |
| |
| r = amdgpu_bo_cpu_map(buf_handle, (void**)&ctx->user_fence_cpu_address_base); |
| if (r) { |
| fprintf(stderr, "amdgpu: amdgpu_bo_cpu_map failed. (%i)\n", r); |
| goto error_user_fence_map; |
| } |
| |
| memset(ctx->user_fence_cpu_address_base, 0, alloc_buffer.alloc_size); |
| ctx->user_fence_bo = buf_handle; |
| |
| return (struct radeon_winsys_ctx*)ctx; |
| |
| error_user_fence_map: |
| amdgpu_bo_free(buf_handle); |
| error_user_fence_alloc: |
| amdgpu_cs_ctx_free(ctx->ctx); |
| error_create: |
| FREE(ctx); |
| return NULL; |
| } |
| |
| static void amdgpu_ctx_destroy(struct radeon_winsys_ctx *rwctx) |
| { |
| amdgpu_ctx_unref((struct amdgpu_ctx*)rwctx); |
| } |
| |
| static enum pipe_reset_status |
| amdgpu_ctx_query_reset_status(struct radeon_winsys_ctx *rwctx) |
| { |
| struct amdgpu_ctx *ctx = (struct amdgpu_ctx*)rwctx; |
| uint32_t result, hangs; |
| int r; |
| |
| /* Return a failure due to a rejected command submission. */ |
| if (ctx->ws->num_total_rejected_cs > ctx->initial_num_total_rejected_cs) { |
| return ctx->num_rejected_cs ? PIPE_GUILTY_CONTEXT_RESET : |
| PIPE_INNOCENT_CONTEXT_RESET; |
| } |
| |
| /* Return a failure due to a GPU hang. */ |
| r = amdgpu_cs_query_reset_state(ctx->ctx, &result, &hangs); |
| if (r) { |
| fprintf(stderr, "amdgpu: amdgpu_cs_query_reset_state failed. (%i)\n", r); |
| return PIPE_NO_RESET; |
| } |
| |
| switch (result) { |
| case AMDGPU_CTX_GUILTY_RESET: |
| return PIPE_GUILTY_CONTEXT_RESET; |
| case AMDGPU_CTX_INNOCENT_RESET: |
| return PIPE_INNOCENT_CONTEXT_RESET; |
| case AMDGPU_CTX_UNKNOWN_RESET: |
| return PIPE_UNKNOWN_CONTEXT_RESET; |
| case AMDGPU_CTX_NO_RESET: |
| default: |
| return PIPE_NO_RESET; |
| } |
| } |
| |
| /* COMMAND SUBMISSION */ |
| |
| static bool amdgpu_cs_has_user_fence(struct amdgpu_cs_context *cs) |
| { |
| return cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_UVD && |
| cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_VCE && |
| cs->ib[IB_MAIN].ip_type != AMDGPU_HW_IP_VCN_DEC; |
| } |
| |
| static bool amdgpu_cs_has_chaining(struct amdgpu_cs *cs) |
| { |
| return cs->ctx->ws->info.chip_class >= CIK && |
| cs->ring_type == RING_GFX; |
| } |
| |
| static unsigned amdgpu_cs_epilog_dws(enum ring_type ring_type) |
| { |
| if (ring_type == RING_GFX) |
| return 4; /* for chaining */ |
| |
| return 0; |
| } |
| |
| int amdgpu_lookup_buffer(struct amdgpu_cs_context *cs, struct amdgpu_winsys_bo *bo) |
| { |
| unsigned hash = bo->unique_id & (ARRAY_SIZE(cs->buffer_indices_hashlist)-1); |
| int i = cs->buffer_indices_hashlist[hash]; |
| struct amdgpu_cs_buffer *buffers; |
| int num_buffers; |
| |
| if (bo->bo) { |
| buffers = cs->real_buffers; |
| num_buffers = cs->num_real_buffers; |
| } else if (!bo->sparse) { |
| buffers = cs->slab_buffers; |
| num_buffers = cs->num_slab_buffers; |
| } else { |
| buffers = cs->sparse_buffers; |
| num_buffers = cs->num_sparse_buffers; |
| } |
| |
| /* not found or found */ |
| if (i < 0 || (i < num_buffers && buffers[i].bo == bo)) |
| return i; |
| |
| /* Hash collision, look for the BO in the list of buffers linearly. */ |
| for (i = num_buffers - 1; i >= 0; i--) { |
| if (buffers[i].bo == bo) { |
| /* Put this buffer in the hash list. |
| * This will prevent additional hash collisions if there are |
| * several consecutive lookup_buffer calls for the same buffer. |
| * |
| * Example: Assuming buffers A,B,C collide in the hash list, |
| * the following sequence of buffers: |
| * AAAAAAAAAAABBBBBBBBBBBBBBCCCCCCCC |
| * will collide here: ^ and here: ^, |
| * meaning that we should get very few collisions in the end. */ |
| cs->buffer_indices_hashlist[hash] = i; |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| static int |
| amdgpu_do_add_real_buffer(struct amdgpu_cs_context *cs, struct amdgpu_winsys_bo *bo) |
| { |
| struct amdgpu_cs_buffer *buffer; |
| int idx; |
| |
| /* New buffer, check if the backing array is large enough. */ |
| if (cs->num_real_buffers >= cs->max_real_buffers) { |
| unsigned new_max = |
| MAX2(cs->max_real_buffers + 16, (unsigned)(cs->max_real_buffers * 1.3)); |
| struct amdgpu_cs_buffer *new_buffers; |
| |
| new_buffers = MALLOC(new_max * sizeof(*new_buffers)); |
| |
| if (!new_buffers) { |
| fprintf(stderr, "amdgpu_do_add_buffer: allocation failed\n"); |
| FREE(new_buffers); |
| return -1; |
| } |
| |
| memcpy(new_buffers, cs->real_buffers, cs->num_real_buffers * sizeof(*new_buffers)); |
| |
| FREE(cs->real_buffers); |
| |
| cs->max_real_buffers = new_max; |
| cs->real_buffers = new_buffers; |
| } |
| |
| idx = cs->num_real_buffers; |
| buffer = &cs->real_buffers[idx]; |
| |
| memset(buffer, 0, sizeof(*buffer)); |
| amdgpu_winsys_bo_reference(&buffer->bo, bo); |
| p_atomic_inc(&bo->num_cs_references); |
| cs->num_real_buffers++; |
| |
| return idx; |
| } |
| |
| static int |
| amdgpu_lookup_or_add_real_buffer(struct amdgpu_cs *acs, struct amdgpu_winsys_bo *bo) |
| { |
| struct amdgpu_cs_context *cs = acs->csc; |
| unsigned hash; |
| int idx = amdgpu_lookup_buffer(cs, bo); |
| |
| if (idx >= 0) |
| return idx; |
| |
| idx = amdgpu_do_add_real_buffer(cs, bo); |
| |
| hash = bo->unique_id & (ARRAY_SIZE(cs->buffer_indices_hashlist)-1); |
| cs->buffer_indices_hashlist[hash] = idx; |
| |
| if (bo->initial_domain & RADEON_DOMAIN_VRAM) |
| acs->main.base.used_vram += bo->base.size; |
| else if (bo->initial_domain & RADEON_DOMAIN_GTT) |
| acs->main.base.used_gart += bo->base.size; |
| |
| return idx; |
| } |
| |
| static int amdgpu_lookup_or_add_slab_buffer(struct amdgpu_cs *acs, |
| struct amdgpu_winsys_bo *bo) |
| { |
| struct amdgpu_cs_context *cs = acs->csc; |
| struct amdgpu_cs_buffer *buffer; |
| unsigned hash; |
| int idx = amdgpu_lookup_buffer(cs, bo); |
| int real_idx; |
| |
| if (idx >= 0) |
| return idx; |
| |
| real_idx = amdgpu_lookup_or_add_real_buffer(acs, bo->u.slab.real); |
| if (real_idx < 0) |
| return -1; |
| |
| /* New buffer, check if the backing array is large enough. */ |
| if (cs->num_slab_buffers >= cs->max_slab_buffers) { |
| unsigned new_max = |
| MAX2(cs->max_slab_buffers + 16, (unsigned)(cs->max_slab_buffers * 1.3)); |
| struct amdgpu_cs_buffer *new_buffers; |
| |
| new_buffers = REALLOC(cs->slab_buffers, |
| cs->max_slab_buffers * sizeof(*new_buffers), |
| new_max * sizeof(*new_buffers)); |
| if (!new_buffers) { |
| fprintf(stderr, "amdgpu_lookup_or_add_slab_buffer: allocation failed\n"); |
| return -1; |
| } |
| |
| cs->max_slab_buffers = new_max; |
| cs->slab_buffers = new_buffers; |
| } |
| |
| idx = cs->num_slab_buffers; |
| buffer = &cs->slab_buffers[idx]; |
| |
| memset(buffer, 0, sizeof(*buffer)); |
| amdgpu_winsys_bo_reference(&buffer->bo, bo); |
| buffer->u.slab.real_idx = real_idx; |
| p_atomic_inc(&bo->num_cs_references); |
| cs->num_slab_buffers++; |
| |
| hash = bo->unique_id & (ARRAY_SIZE(cs->buffer_indices_hashlist)-1); |
| cs->buffer_indices_hashlist[hash] = idx; |
| |
| return idx; |
| } |
| |
| static int amdgpu_lookup_or_add_sparse_buffer(struct amdgpu_cs *acs, |
| struct amdgpu_winsys_bo *bo) |
| { |
| struct amdgpu_cs_context *cs = acs->csc; |
| struct amdgpu_cs_buffer *buffer; |
| unsigned hash; |
| int idx = amdgpu_lookup_buffer(cs, bo); |
| |
| if (idx >= 0) |
| return idx; |
| |
| /* New buffer, check if the backing array is large enough. */ |
| if (cs->num_sparse_buffers >= cs->max_sparse_buffers) { |
| unsigned new_max = |
| MAX2(cs->max_sparse_buffers + 16, (unsigned)(cs->max_sparse_buffers * 1.3)); |
| struct amdgpu_cs_buffer *new_buffers; |
| |
| new_buffers = REALLOC(cs->sparse_buffers, |
| cs->max_sparse_buffers * sizeof(*new_buffers), |
| new_max * sizeof(*new_buffers)); |
| if (!new_buffers) { |
| fprintf(stderr, "amdgpu_lookup_or_add_sparse_buffer: allocation failed\n"); |
| return -1; |
| } |
| |
| cs->max_sparse_buffers = new_max; |
| cs->sparse_buffers = new_buffers; |
| } |
| |
| idx = cs->num_sparse_buffers; |
| buffer = &cs->sparse_buffers[idx]; |
| |
| memset(buffer, 0, sizeof(*buffer)); |
| amdgpu_winsys_bo_reference(&buffer->bo, bo); |
| p_atomic_inc(&bo->num_cs_references); |
| cs->num_sparse_buffers++; |
| |
| hash = bo->unique_id & (ARRAY_SIZE(cs->buffer_indices_hashlist)-1); |
| cs->buffer_indices_hashlist[hash] = idx; |
| |
| /* We delay adding the backing buffers until we really have to. However, |
| * we cannot delay accounting for memory use. |
| */ |
| simple_mtx_lock(&bo->u.sparse.commit_lock); |
| |
| list_for_each_entry(struct amdgpu_sparse_backing, backing, &bo->u.sparse.backing, list) { |
| if (bo->initial_domain & RADEON_DOMAIN_VRAM) |
| acs->main.base.used_vram += backing->bo->base.size; |
| else if (bo->initial_domain & RADEON_DOMAIN_GTT) |
| acs->main.base.used_gart += backing->bo->base.size; |
| } |
| |
| simple_mtx_unlock(&bo->u.sparse.commit_lock); |
| |
| return idx; |
| } |
| |
| static unsigned amdgpu_cs_add_buffer(struct radeon_winsys_cs *rcs, |
| struct pb_buffer *buf, |
| enum radeon_bo_usage usage, |
| enum radeon_bo_domain domains, |
| enum radeon_bo_priority priority) |
| { |
| /* Don't use the "domains" parameter. Amdgpu doesn't support changing |
| * the buffer placement during command submission. |
| */ |
| struct amdgpu_cs *acs = amdgpu_cs(rcs); |
| struct amdgpu_cs_context *cs = acs->csc; |
| struct amdgpu_winsys_bo *bo = (struct amdgpu_winsys_bo*)buf; |
| struct amdgpu_cs_buffer *buffer; |
| int index; |
| |
| /* Fast exit for no-op calls. |
| * This is very effective with suballocators and linear uploaders that |
| * are outside of the winsys. |
| */ |
| if (bo == cs->last_added_bo && |
| (usage & cs->last_added_bo_usage) == usage && |
| (1ull << priority) & cs->last_added_bo_priority_usage) |
| return cs->last_added_bo_index; |
| |
| if (!bo->sparse) { |
| if (!bo->bo) { |
| index = amdgpu_lookup_or_add_slab_buffer(acs, bo); |
| if (index < 0) |
| return 0; |
| |
| buffer = &cs->slab_buffers[index]; |
| buffer->usage |= usage; |
| |
| usage &= ~RADEON_USAGE_SYNCHRONIZED; |
| index = buffer->u.slab.real_idx; |
| } else { |
| index = amdgpu_lookup_or_add_real_buffer(acs, bo); |
| if (index < 0) |
| return 0; |
| } |
| |
| buffer = &cs->real_buffers[index]; |
| } else { |
| index = amdgpu_lookup_or_add_sparse_buffer(acs, bo); |
| if (index < 0) |
| return 0; |
| |
| buffer = &cs->sparse_buffers[index]; |
| } |
| |
| buffer->u.real.priority_usage |= 1ull << priority; |
| buffer->usage |= usage; |
| |
| cs->last_added_bo = bo; |
| cs->last_added_bo_index = index; |
| cs->last_added_bo_usage = buffer->usage; |
| cs->last_added_bo_priority_usage = buffer->u.real.priority_usage; |
| return index; |
| } |
| |
| static bool amdgpu_ib_new_buffer(struct amdgpu_winsys *ws, struct amdgpu_ib *ib, |
| enum ring_type ring_type) |
| { |
| struct pb_buffer *pb; |
| uint8_t *mapped; |
| unsigned buffer_size; |
| |
| /* Always create a buffer that is at least as large as the maximum seen IB |
| * size, aligned to a power of two (and multiplied by 4 to reduce internal |
| * fragmentation if chaining is not available). Limit to 512k dwords, which |
| * is the largest power of two that fits into the size field of the |
| * INDIRECT_BUFFER packet. |
| */ |
| if (amdgpu_cs_has_chaining(amdgpu_cs_from_ib(ib))) |
| buffer_size = 4 *util_next_power_of_two(ib->max_ib_size); |
| else |
| buffer_size = 4 *util_next_power_of_two(4 * ib->max_ib_size); |
| |
| buffer_size = MIN2(buffer_size, 4 * 512 * 1024); |
| |
| switch (ib->ib_type) { |
| case IB_MAIN: |
| buffer_size = MAX2(buffer_size, 8 * 1024 * 4); |
| break; |
| default: |
| unreachable("unhandled IB type"); |
| } |
| |
| pb = ws->base.buffer_create(&ws->base, buffer_size, |
| ws->info.gart_page_size, |
| RADEON_DOMAIN_GTT, |
| RADEON_FLAG_NO_INTERPROCESS_SHARING | |
| (ring_type == RING_GFX || |
| ring_type == RING_COMPUTE || |
| ring_type == RING_DMA ? |
| RADEON_FLAG_GTT_WC : 0)); |
| if (!pb) |
| return false; |
| |
| mapped = ws->base.buffer_map(pb, NULL, PIPE_TRANSFER_WRITE); |
| if (!mapped) { |
| pb_reference(&pb, NULL); |
| return false; |
| } |
| |
| pb_reference(&ib->big_ib_buffer, pb); |
| pb_reference(&pb, NULL); |
| |
| ib->ib_mapped = mapped; |
| ib->used_ib_space = 0; |
| |
| return true; |
| } |
| |
| static unsigned amdgpu_ib_max_submit_dwords(enum ib_type ib_type) |
| { |
| switch (ib_type) { |
| case IB_MAIN: |
| /* Smaller submits means the GPU gets busy sooner and there is less |
| * waiting for buffers and fences. Proof: |
| * http://www.phoronix.com/scan.php?page=article&item=mesa-111-si&num=1 |
| */ |
| return 20 * 1024; |
| default: |
| unreachable("bad ib_type"); |
| } |
| } |
| |
| static bool amdgpu_get_new_ib(struct radeon_winsys *ws, struct amdgpu_cs *cs, |
| enum ib_type ib_type) |
| { |
| struct amdgpu_winsys *aws = (struct amdgpu_winsys*)ws; |
| /* Small IBs are better than big IBs, because the GPU goes idle quicker |
| * and there is less waiting for buffers and fences. Proof: |
| * http://www.phoronix.com/scan.php?page=article&item=mesa-111-si&num=1 |
| */ |
| struct amdgpu_ib *ib = NULL; |
| struct drm_amdgpu_cs_chunk_ib *info = &cs->csc->ib[ib_type]; |
| unsigned ib_size = 0; |
| |
| switch (ib_type) { |
| case IB_MAIN: |
| ib = &cs->main; |
| ib_size = 4 * 1024 * 4; |
| break; |
| default: |
| unreachable("unhandled IB type"); |
| } |
| |
| if (!amdgpu_cs_has_chaining(cs)) { |
| ib_size = MAX2(ib_size, |
| 4 * MIN2(util_next_power_of_two(ib->max_ib_size), |
| amdgpu_ib_max_submit_dwords(ib_type))); |
| } |
| |
| ib->max_ib_size = ib->max_ib_size - ib->max_ib_size / 32; |
| |
| ib->base.prev_dw = 0; |
| ib->base.num_prev = 0; |
| ib->base.current.cdw = 0; |
| ib->base.current.buf = NULL; |
| |
| /* Allocate a new buffer for IBs if the current buffer is all used. */ |
| if (!ib->big_ib_buffer || |
| ib->used_ib_space + ib_size > ib->big_ib_buffer->size) { |
| if (!amdgpu_ib_new_buffer(aws, ib, cs->ring_type)) |
| return false; |
| } |
| |
| info->va_start = amdgpu_winsys_bo(ib->big_ib_buffer)->va + ib->used_ib_space; |
| info->ib_bytes = 0; |
| /* ib_bytes is in dwords and the conversion to bytes will be done before |
| * the CS ioctl. */ |
| ib->ptr_ib_size = &info->ib_bytes; |
| ib->ptr_ib_size_inside_ib = false; |
| |
| amdgpu_cs_add_buffer(&cs->main.base, ib->big_ib_buffer, |
| RADEON_USAGE_READ, 0, RADEON_PRIO_IB1); |
| |
| ib->base.current.buf = (uint32_t*)(ib->ib_mapped + ib->used_ib_space); |
| |
| ib_size = ib->big_ib_buffer->size - ib->used_ib_space; |
| ib->base.current.max_dw = ib_size / 4 - amdgpu_cs_epilog_dws(cs->ring_type); |
| return true; |
| } |
| |
| static void amdgpu_set_ib_size(struct amdgpu_ib *ib) |
| { |
| if (ib->ptr_ib_size_inside_ib) { |
| *ib->ptr_ib_size = ib->base.current.cdw | |
| S_3F2_CHAIN(1) | S_3F2_VALID(1); |
| } else { |
| *ib->ptr_ib_size = ib->base.current.cdw; |
| } |
| } |
| |
| static void amdgpu_ib_finalize(struct amdgpu_ib *ib) |
| { |
| amdgpu_set_ib_size(ib); |
| ib->used_ib_space += ib->base.current.cdw * 4; |
| ib->max_ib_size = MAX2(ib->max_ib_size, ib->base.prev_dw + ib->base.current.cdw); |
| } |
| |
| static bool amdgpu_init_cs_context(struct amdgpu_cs_context *cs, |
| enum ring_type ring_type) |
| { |
| switch (ring_type) { |
| case RING_DMA: |
| cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_DMA; |
| break; |
| |
| case RING_UVD: |
| cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_UVD; |
| break; |
| |
| case RING_VCE: |
| cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_VCE; |
| break; |
| |
| case RING_COMPUTE: |
| cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_COMPUTE; |
| break; |
| |
| case RING_VCN_DEC: |
| cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_VCN_DEC; |
| break; |
| |
| default: |
| case RING_GFX: |
| cs->ib[IB_MAIN].ip_type = AMDGPU_HW_IP_GFX; |
| break; |
| } |
| |
| memset(cs->buffer_indices_hashlist, -1, sizeof(cs->buffer_indices_hashlist)); |
| cs->last_added_bo = NULL; |
| return true; |
| } |
| |
| static void amdgpu_cs_context_cleanup(struct amdgpu_cs_context *cs) |
| { |
| unsigned i; |
| |
| for (i = 0; i < cs->num_real_buffers; i++) { |
| p_atomic_dec(&cs->real_buffers[i].bo->num_cs_references); |
| amdgpu_winsys_bo_reference(&cs->real_buffers[i].bo, NULL); |
| } |
| for (i = 0; i < cs->num_slab_buffers; i++) { |
| p_atomic_dec(&cs->slab_buffers[i].bo->num_cs_references); |
| amdgpu_winsys_bo_reference(&cs->slab_buffers[i].bo, NULL); |
| } |
| for (i = 0; i < cs->num_sparse_buffers; i++) { |
| p_atomic_dec(&cs->sparse_buffers[i].bo->num_cs_references); |
| amdgpu_winsys_bo_reference(&cs->sparse_buffers[i].bo, NULL); |
| } |
| for (i = 0; i < cs->num_fence_dependencies; i++) |
| amdgpu_fence_reference(&cs->fence_dependencies[i], NULL); |
| |
| cs->num_real_buffers = 0; |
| cs->num_slab_buffers = 0; |
| cs->num_sparse_buffers = 0; |
| cs->num_fence_dependencies = 0; |
| amdgpu_fence_reference(&cs->fence, NULL); |
| |
| memset(cs->buffer_indices_hashlist, -1, sizeof(cs->buffer_indices_hashlist)); |
| cs->last_added_bo = NULL; |
| } |
| |
| static void amdgpu_destroy_cs_context(struct amdgpu_cs_context *cs) |
| { |
| amdgpu_cs_context_cleanup(cs); |
| FREE(cs->flags); |
| FREE(cs->real_buffers); |
| FREE(cs->handles); |
| FREE(cs->slab_buffers); |
| FREE(cs->sparse_buffers); |
| FREE(cs->fence_dependencies); |
| } |
| |
| |
| static struct radeon_winsys_cs * |
| amdgpu_cs_create(struct radeon_winsys_ctx *rwctx, |
| enum ring_type ring_type, |
| void (*flush)(void *ctx, unsigned flags, |
| struct pipe_fence_handle **fence), |
| void *flush_ctx) |
| { |
| struct amdgpu_ctx *ctx = (struct amdgpu_ctx*)rwctx; |
| struct amdgpu_cs *cs; |
| |
| cs = CALLOC_STRUCT(amdgpu_cs); |
| if (!cs) { |
| return NULL; |
| } |
| |
| util_queue_fence_init(&cs->flush_completed); |
| |
| cs->ctx = ctx; |
| cs->flush_cs = flush; |
| cs->flush_data = flush_ctx; |
| cs->ring_type = ring_type; |
| |
| struct amdgpu_cs_fence_info fence_info; |
| fence_info.handle = cs->ctx->user_fence_bo; |
| fence_info.offset = cs->ring_type; |
| amdgpu_cs_chunk_fence_info_to_data(&fence_info, (void*)&cs->fence_chunk); |
| |
| cs->main.ib_type = IB_MAIN; |
| |
| if (!amdgpu_init_cs_context(&cs->csc1, ring_type)) { |
| FREE(cs); |
| return NULL; |
| } |
| |
| if (!amdgpu_init_cs_context(&cs->csc2, ring_type)) { |
| amdgpu_destroy_cs_context(&cs->csc1); |
| FREE(cs); |
| return NULL; |
| } |
| |
| /* Set the first submission context as current. */ |
| cs->csc = &cs->csc1; |
| cs->cst = &cs->csc2; |
| |
| if (!amdgpu_get_new_ib(&ctx->ws->base, cs, IB_MAIN)) { |
| amdgpu_destroy_cs_context(&cs->csc2); |
| amdgpu_destroy_cs_context(&cs->csc1); |
| FREE(cs); |
| return NULL; |
| } |
| |
| p_atomic_inc(&ctx->ws->num_cs); |
| return &cs->main.base; |
| } |
| |
| static bool amdgpu_cs_validate(struct radeon_winsys_cs *rcs) |
| { |
| return true; |
| } |
| |
| static bool amdgpu_cs_check_space(struct radeon_winsys_cs *rcs, unsigned dw) |
| { |
| struct amdgpu_ib *ib = amdgpu_ib(rcs); |
| struct amdgpu_cs *cs = amdgpu_cs_from_ib(ib); |
| unsigned requested_size = rcs->prev_dw + rcs->current.cdw + dw; |
| uint64_t va; |
| uint32_t *new_ptr_ib_size; |
| |
| assert(rcs->current.cdw <= rcs->current.max_dw); |
| |
| if (requested_size > amdgpu_ib_max_submit_dwords(ib->ib_type)) |
| return false; |
| |
| ib->max_ib_size = MAX2(ib->max_ib_size, requested_size); |
| |
| if (rcs->current.max_dw - rcs->current.cdw >= dw) |
| return true; |
| |
| if (!amdgpu_cs_has_chaining(cs)) |
| return false; |
| |
| /* Allocate a new chunk */ |
| if (rcs->num_prev >= rcs->max_prev) { |
| unsigned new_max_prev = MAX2(1, 2 * rcs->max_prev); |
| struct radeon_winsys_cs_chunk *new_prev; |
| |
| new_prev = REALLOC(rcs->prev, |
| sizeof(*new_prev) * rcs->max_prev, |
| sizeof(*new_prev) * new_max_prev); |
| if (!new_prev) |
| return false; |
| |
| rcs->prev = new_prev; |
| rcs->max_prev = new_max_prev; |
| } |
| |
| if (!amdgpu_ib_new_buffer(cs->ctx->ws, ib, cs->ring_type)) |
| return false; |
| |
| assert(ib->used_ib_space == 0); |
| va = amdgpu_winsys_bo(ib->big_ib_buffer)->va; |
| |
| /* This space was originally reserved. */ |
| rcs->current.max_dw += 4; |
| assert(ib->used_ib_space + 4 * rcs->current.max_dw <= ib->big_ib_buffer->size); |
| |
| /* Pad with NOPs and add INDIRECT_BUFFER packet */ |
| while ((rcs->current.cdw & 7) != 4) |
| radeon_emit(rcs, 0xffff1000); /* type3 nop packet */ |
| |
| radeon_emit(rcs, PKT3(ib->ib_type == IB_MAIN ? PKT3_INDIRECT_BUFFER_CIK |
| : PKT3_INDIRECT_BUFFER_CONST, 2, 0)); |
| radeon_emit(rcs, va); |
| radeon_emit(rcs, va >> 32); |
| new_ptr_ib_size = &rcs->current.buf[rcs->current.cdw++]; |
| |
| assert((rcs->current.cdw & 7) == 0); |
| assert(rcs->current.cdw <= rcs->current.max_dw); |
| |
| amdgpu_set_ib_size(ib); |
| ib->ptr_ib_size = new_ptr_ib_size; |
| ib->ptr_ib_size_inside_ib = true; |
| |
| /* Hook up the new chunk */ |
| rcs->prev[rcs->num_prev].buf = rcs->current.buf; |
| rcs->prev[rcs->num_prev].cdw = rcs->current.cdw; |
| rcs->prev[rcs->num_prev].max_dw = rcs->current.cdw; /* no modifications */ |
| rcs->num_prev++; |
| |
| ib->base.prev_dw += ib->base.current.cdw; |
| ib->base.current.cdw = 0; |
| |
| ib->base.current.buf = (uint32_t*)(ib->ib_mapped + ib->used_ib_space); |
| ib->base.current.max_dw = ib->big_ib_buffer->size / 4 - amdgpu_cs_epilog_dws(cs->ring_type); |
| |
| amdgpu_cs_add_buffer(&cs->main.base, ib->big_ib_buffer, |
| RADEON_USAGE_READ, 0, RADEON_PRIO_IB1); |
| |
| return true; |
| } |
| |
| static unsigned amdgpu_cs_get_buffer_list(struct radeon_winsys_cs *rcs, |
| struct radeon_bo_list_item *list) |
| { |
| struct amdgpu_cs_context *cs = amdgpu_cs(rcs)->csc; |
| int i; |
| |
| if (list) { |
| for (i = 0; i < cs->num_real_buffers; i++) { |
| list[i].bo_size = cs->real_buffers[i].bo->base.size; |
| list[i].vm_address = cs->real_buffers[i].bo->va; |
| list[i].priority_usage = cs->real_buffers[i].u.real.priority_usage; |
| } |
| } |
| return cs->num_real_buffers; |
| } |
| |
| static unsigned add_fence_dependency_entry(struct amdgpu_cs_context *cs) |
| { |
| unsigned idx = cs->num_fence_dependencies++; |
| |
| if (idx >= cs->max_fence_dependencies) { |
| unsigned size; |
| const unsigned increment = 8; |
| |
| cs->max_fence_dependencies = idx + increment; |
| size = cs->max_fence_dependencies * sizeof(cs->fence_dependencies[0]); |
| cs->fence_dependencies = realloc(cs->fence_dependencies, size); |
| /* Clear the newly-allocated elements. */ |
| memset(cs->fence_dependencies + idx, 0, |
| increment * sizeof(cs->fence_dependencies[0])); |
| } |
| return idx; |
| } |
| |
| static bool is_noop_fence_dependency(struct amdgpu_cs *acs, |
| struct amdgpu_fence *fence) |
| { |
| struct amdgpu_cs_context *cs = acs->csc; |
| |
| if (!amdgpu_fence_is_syncobj(fence) && |
| fence->ctx == acs->ctx && |
| fence->fence.ip_type == cs->ib[IB_MAIN].ip_type && |
| fence->fence.ip_instance == cs->ib[IB_MAIN].ip_instance && |
| fence->fence.ring == cs->ib[IB_MAIN].ring) |
| return true; |
| |
| return amdgpu_fence_wait((void *)fence, 0, false); |
| } |
| |
| static void amdgpu_cs_add_fence_dependency(struct radeon_winsys_cs *rws, |
| struct pipe_fence_handle *pfence) |
| { |
| struct amdgpu_cs *acs = amdgpu_cs(rws); |
| struct amdgpu_cs_context *cs = acs->csc; |
| struct amdgpu_fence *fence = (struct amdgpu_fence*)pfence; |
| |
| if (is_noop_fence_dependency(acs, fence)) |
| return; |
| |
| unsigned idx = add_fence_dependency_entry(cs); |
| amdgpu_fence_reference(&cs->fence_dependencies[idx], |
| (struct pipe_fence_handle*)fence); |
| } |
| |
| static void amdgpu_add_bo_fence_dependencies(struct amdgpu_cs *acs, |
| struct amdgpu_cs_buffer *buffer) |
| { |
| struct amdgpu_cs_context *cs = acs->csc; |
| struct amdgpu_winsys_bo *bo = buffer->bo; |
| unsigned new_num_fences = 0; |
| |
| for (unsigned j = 0; j < bo->num_fences; ++j) { |
| struct amdgpu_fence *bo_fence = (void *)bo->fences[j]; |
| |
| if (is_noop_fence_dependency(acs, bo_fence)) |
| continue; |
| |
| amdgpu_fence_reference(&bo->fences[new_num_fences], bo->fences[j]); |
| new_num_fences++; |
| |
| if (!(buffer->usage & RADEON_USAGE_SYNCHRONIZED)) |
| continue; |
| |
| unsigned idx = add_fence_dependency_entry(cs); |
| amdgpu_fence_reference(&cs->fence_dependencies[idx], |
| (struct pipe_fence_handle*)bo_fence); |
| } |
| |
| for (unsigned j = new_num_fences; j < bo->num_fences; ++j) |
| amdgpu_fence_reference(&bo->fences[j], NULL); |
| |
| bo->num_fences = new_num_fences; |
| } |
| |
| /* Add the given list of fences to the buffer's fence list. |
| * |
| * Must be called with the winsys bo_fence_lock held. |
| */ |
| void amdgpu_add_fences(struct amdgpu_winsys_bo *bo, |
| unsigned num_fences, |
| struct pipe_fence_handle **fences) |
| { |
| if (bo->num_fences + num_fences > bo->max_fences) { |
| unsigned new_max_fences = MAX2(bo->num_fences + num_fences, bo->max_fences * 2); |
| struct pipe_fence_handle **new_fences = |
| REALLOC(bo->fences, |
| bo->num_fences * sizeof(*new_fences), |
| new_max_fences * sizeof(*new_fences)); |
| if (likely(new_fences)) { |
| bo->fences = new_fences; |
| bo->max_fences = new_max_fences; |
| } else { |
| unsigned drop; |
| |
| fprintf(stderr, "amdgpu_add_fences: allocation failure, dropping fence(s)\n"); |
| if (!bo->num_fences) |
| return; |
| |
| bo->num_fences--; /* prefer to keep the most recent fence if possible */ |
| amdgpu_fence_reference(&bo->fences[bo->num_fences], NULL); |
| |
| drop = bo->num_fences + num_fences - bo->max_fences; |
| num_fences -= drop; |
| fences += drop; |
| } |
| } |
| |
| for (unsigned i = 0; i < num_fences; ++i) { |
| bo->fences[bo->num_fences] = NULL; |
| amdgpu_fence_reference(&bo->fences[bo->num_fences], fences[i]); |
| bo->num_fences++; |
| } |
| } |
| |
| static void amdgpu_add_fence_dependencies_bo_list(struct amdgpu_cs *acs, |
| struct pipe_fence_handle *fence, |
| unsigned num_buffers, |
| struct amdgpu_cs_buffer *buffers) |
| { |
| for (unsigned i = 0; i < num_buffers; i++) { |
| struct amdgpu_cs_buffer *buffer = &buffers[i]; |
| struct amdgpu_winsys_bo *bo = buffer->bo; |
| |
| amdgpu_add_bo_fence_dependencies(acs, buffer); |
| p_atomic_inc(&bo->num_active_ioctls); |
| amdgpu_add_fences(bo, 1, &fence); |
| } |
| } |
| |
| /* Since the kernel driver doesn't synchronize execution between different |
| * rings automatically, we have to add fence dependencies manually. |
| */ |
| static void amdgpu_add_fence_dependencies_bo_lists(struct amdgpu_cs *acs) |
| { |
| struct amdgpu_cs_context *cs = acs->csc; |
| |
| cs->num_fence_dependencies = 0; |
| |
| amdgpu_add_fence_dependencies_bo_list(acs, cs->fence, cs->num_real_buffers, cs->real_buffers); |
| amdgpu_add_fence_dependencies_bo_list(acs, cs->fence, cs->num_slab_buffers, cs->slab_buffers); |
| amdgpu_add_fence_dependencies_bo_list(acs, cs->fence, cs->num_sparse_buffers, cs->sparse_buffers); |
| } |
| |
| /* Add backing of sparse buffers to the buffer list. |
| * |
| * This is done late, during submission, to keep the buffer list short before |
| * submit, and to avoid managing fences for the backing buffers. |
| */ |
| static bool amdgpu_add_sparse_backing_buffers(struct amdgpu_cs_context *cs) |
| { |
| for (unsigned i = 0; i < cs->num_sparse_buffers; ++i) { |
| struct amdgpu_cs_buffer *buffer = &cs->sparse_buffers[i]; |
| struct amdgpu_winsys_bo *bo = buffer->bo; |
| |
| simple_mtx_lock(&bo->u.sparse.commit_lock); |
| |
| list_for_each_entry(struct amdgpu_sparse_backing, backing, &bo->u.sparse.backing, list) { |
| /* We can directly add the buffer here, because we know that each |
| * backing buffer occurs only once. |
| */ |
| int idx = amdgpu_do_add_real_buffer(cs, backing->bo); |
| if (idx < 0) { |
| fprintf(stderr, "%s: failed to add buffer\n", __FUNCTION__); |
| simple_mtx_unlock(&bo->u.sparse.commit_lock); |
| return false; |
| } |
| |
| cs->real_buffers[idx].usage = buffer->usage & ~RADEON_USAGE_SYNCHRONIZED; |
| cs->real_buffers[idx].u.real.priority_usage = buffer->u.real.priority_usage; |
| p_atomic_inc(&backing->bo->num_active_ioctls); |
| } |
| |
| simple_mtx_unlock(&bo->u.sparse.commit_lock); |
| } |
| |
| return true; |
| } |
| |
| void amdgpu_cs_submit_ib(void *job, int thread_index) |
| { |
| struct amdgpu_cs *acs = (struct amdgpu_cs*)job; |
| struct amdgpu_winsys *ws = acs->ctx->ws; |
| struct amdgpu_cs_context *cs = acs->cst; |
| int i, r; |
| amdgpu_bo_list_handle bo_list = NULL; |
| uint64_t seq_no = 0; |
| bool has_user_fence = amdgpu_cs_has_user_fence(cs); |
| |
| /* Create the buffer list. |
| * Use a buffer list containing all allocated buffers if requested. |
| */ |
| if (ws->debug_all_bos) { |
| struct amdgpu_winsys_bo *bo; |
| amdgpu_bo_handle *handles; |
| unsigned num = 0; |
| |
| simple_mtx_lock(&ws->global_bo_list_lock); |
| |
| handles = malloc(sizeof(handles[0]) * ws->num_buffers); |
| if (!handles) { |
| simple_mtx_unlock(&ws->global_bo_list_lock); |
| amdgpu_cs_context_cleanup(cs); |
| cs->error_code = -ENOMEM; |
| return; |
| } |
| |
| LIST_FOR_EACH_ENTRY(bo, &ws->global_bo_list, u.real.global_list_item) { |
| assert(num < ws->num_buffers); |
| handles[num++] = bo->bo; |
| } |
| |
| r = amdgpu_bo_list_create(ws->dev, ws->num_buffers, |
| handles, NULL, &bo_list); |
| free(handles); |
| simple_mtx_unlock(&ws->global_bo_list_lock); |
| } else { |
| unsigned num_handles; |
| |
| if (!amdgpu_add_sparse_backing_buffers(cs)) { |
| r = -ENOMEM; |
| goto bo_list_error; |
| } |
| |
| if (cs->max_real_submit < cs->num_real_buffers) { |
| FREE(cs->handles); |
| FREE(cs->flags); |
| |
| cs->handles = MALLOC(sizeof(*cs->handles) * cs->num_real_buffers); |
| cs->flags = MALLOC(sizeof(*cs->flags) * cs->num_real_buffers); |
| |
| if (!cs->handles || !cs->flags) { |
| cs->max_real_submit = 0; |
| r = -ENOMEM; |
| goto bo_list_error; |
| } |
| } |
| |
| num_handles = 0; |
| for (i = 0; i < cs->num_real_buffers; ++i) { |
| struct amdgpu_cs_buffer *buffer = &cs->real_buffers[i]; |
| |
| if (buffer->bo->is_local) |
| continue; |
| |
| assert(buffer->u.real.priority_usage != 0); |
| |
| cs->handles[num_handles] = buffer->bo->bo; |
| cs->flags[num_handles] = (util_last_bit64(buffer->u.real.priority_usage) - 1) / 4; |
| ++num_handles; |
| } |
| |
| if (acs->ring_type == RING_GFX) |
| ws->gfx_bo_list_counter += cs->num_real_buffers; |
| |
| if (num_handles) { |
| r = amdgpu_bo_list_create(ws->dev, num_handles, |
| cs->handles, cs->flags, &bo_list); |
| } else { |
| r = 0; |
| } |
| } |
| bo_list_error: |
| |
| if (r) { |
| fprintf(stderr, "amdgpu: buffer list creation failed (%d)\n", r); |
| amdgpu_fence_signalled(cs->fence); |
| cs->error_code = r; |
| goto cleanup; |
| } |
| |
| if (acs->ctx->num_rejected_cs) { |
| r = -ECANCELED; |
| } else { |
| struct drm_amdgpu_cs_chunk chunks[4]; |
| unsigned num_chunks = 0; |
| |
| /* Convert from dwords to bytes. */ |
| cs->ib[IB_MAIN].ib_bytes *= 4; |
| |
| /* IB */ |
| chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_IB; |
| chunks[num_chunks].length_dw = sizeof(struct drm_amdgpu_cs_chunk_ib) / 4; |
| chunks[num_chunks].chunk_data = (uintptr_t)&cs->ib[IB_MAIN]; |
| num_chunks++; |
| |
| /* Fence */ |
| if (has_user_fence) { |
| chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_FENCE; |
| chunks[num_chunks].length_dw = sizeof(struct drm_amdgpu_cs_chunk_fence) / 4; |
| chunks[num_chunks].chunk_data = (uintptr_t)&acs->fence_chunk; |
| num_chunks++; |
| } |
| |
| /* Dependencies */ |
| unsigned num_dependencies = cs->num_fence_dependencies; |
| unsigned num_syncobj_dependencies = 0; |
| |
| if (num_dependencies) { |
| struct drm_amdgpu_cs_chunk_dep *dep_chunk = |
| alloca(num_dependencies * sizeof(*dep_chunk)); |
| unsigned num = 0; |
| |
| for (unsigned i = 0; i < num_dependencies; i++) { |
| struct amdgpu_fence *fence = |
| (struct amdgpu_fence*)cs->fence_dependencies[i]; |
| |
| if (amdgpu_fence_is_syncobj(fence)) { |
| num_syncobj_dependencies++; |
| continue; |
| } |
| |
| assert(!fence->submission_in_progress); |
| amdgpu_cs_chunk_fence_to_dep(&fence->fence, &dep_chunk[num++]); |
| } |
| |
| chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_DEPENDENCIES; |
| chunks[num_chunks].length_dw = sizeof(dep_chunk[0]) / 4 * num; |
| chunks[num_chunks].chunk_data = (uintptr_t)dep_chunk; |
| num_chunks++; |
| } |
| |
| /* Syncobj dependencies. */ |
| if (num_syncobj_dependencies) { |
| struct drm_amdgpu_cs_chunk_sem *sem_chunk = |
| alloca(num_syncobj_dependencies * sizeof(sem_chunk[0])); |
| unsigned num = 0; |
| |
| for (unsigned i = 0; i < num_dependencies; i++) { |
| struct amdgpu_fence *fence = |
| (struct amdgpu_fence*)cs->fence_dependencies[i]; |
| |
| if (!amdgpu_fence_is_syncobj(fence)) |
| continue; |
| |
| assert(!fence->submission_in_progress); |
| sem_chunk[num++].handle = fence->syncobj; |
| } |
| |
| chunks[num_chunks].chunk_id = AMDGPU_CHUNK_ID_SYNCOBJ_IN; |
| chunks[num_chunks].length_dw = sizeof(sem_chunk[0]) / 4 * num; |
| chunks[num_chunks].chunk_data = (uintptr_t)sem_chunk; |
| num_chunks++; |
| } |
| |
| assert(num_chunks <= ARRAY_SIZE(chunks)); |
| |
| r = amdgpu_cs_submit_raw(ws->dev, acs->ctx->ctx, bo_list, |
| num_chunks, chunks, &seq_no); |
| } |
| |
| cs->error_code = r; |
| if (r) { |
| if (r == -ENOMEM) |
| fprintf(stderr, "amdgpu: Not enough memory for command submission.\n"); |
| else if (r == -ECANCELED) |
| fprintf(stderr, "amdgpu: The CS has been cancelled because the context is lost.\n"); |
| else |
| fprintf(stderr, "amdgpu: The CS has been rejected, " |
| "see dmesg for more information (%i).\n", r); |
| |
| amdgpu_fence_signalled(cs->fence); |
| |
| acs->ctx->num_rejected_cs++; |
| ws->num_total_rejected_cs++; |
| } else { |
| /* Success. */ |
| uint64_t *user_fence = NULL; |
| |
| if (has_user_fence) |
| user_fence = acs->ctx->user_fence_cpu_address_base + acs->ring_type; |
| amdgpu_fence_submitted(cs->fence, seq_no, user_fence); |
| } |
| |
| /* Cleanup. */ |
| if (bo_list) |
| amdgpu_bo_list_destroy(bo_list); |
| |
| cleanup: |
| for (i = 0; i < cs->num_real_buffers; i++) |
| p_atomic_dec(&cs->real_buffers[i].bo->num_active_ioctls); |
| for (i = 0; i < cs->num_slab_buffers; i++) |
| p_atomic_dec(&cs->slab_buffers[i].bo->num_active_ioctls); |
| for (i = 0; i < cs->num_sparse_buffers; i++) |
| p_atomic_dec(&cs->sparse_buffers[i].bo->num_active_ioctls); |
| |
| amdgpu_cs_context_cleanup(cs); |
| } |
| |
| /* Make sure the previous submission is completed. */ |
| void amdgpu_cs_sync_flush(struct radeon_winsys_cs *rcs) |
| { |
| struct amdgpu_cs *cs = amdgpu_cs(rcs); |
| |
| /* Wait for any pending ioctl of this CS to complete. */ |
| util_queue_fence_wait(&cs->flush_completed); |
| } |
| |
| static int amdgpu_cs_flush(struct radeon_winsys_cs *rcs, |
| unsigned flags, |
| struct pipe_fence_handle **fence) |
| { |
| struct amdgpu_cs *cs = amdgpu_cs(rcs); |
| struct amdgpu_winsys *ws = cs->ctx->ws; |
| int error_code = 0; |
| |
| rcs->current.max_dw += amdgpu_cs_epilog_dws(cs->ring_type); |
| |
| switch (cs->ring_type) { |
| case RING_DMA: |
| /* pad DMA ring to 8 DWs */ |
| if (ws->info.chip_class <= SI) { |
| while (rcs->current.cdw & 7) |
| radeon_emit(rcs, 0xf0000000); /* NOP packet */ |
| } else { |
| while (rcs->current.cdw & 7) |
| radeon_emit(rcs, 0x00000000); /* NOP packet */ |
| } |
| break; |
| case RING_GFX: |
| /* pad GFX ring to 8 DWs to meet CP fetch alignment requirements */ |
| if (ws->info.gfx_ib_pad_with_type2) { |
| while (rcs->current.cdw & 7) |
| radeon_emit(rcs, 0x80000000); /* type2 nop packet */ |
| } else { |
| while (rcs->current.cdw & 7) |
| radeon_emit(rcs, 0xffff1000); /* type3 nop packet */ |
| } |
| ws->gfx_ib_size_counter += (rcs->prev_dw + rcs->current.cdw) * 4; |
| break; |
| case RING_UVD: |
| while (rcs->current.cdw & 15) |
| radeon_emit(rcs, 0x80000000); /* type2 nop packet */ |
| break; |
| case RING_VCN_DEC: |
| while (rcs->current.cdw & 15) |
| radeon_emit(rcs, 0x81ff); /* nop packet */ |
| break; |
| default: |
| break; |
| } |
| |
| if (rcs->current.cdw > rcs->current.max_dw) { |
| fprintf(stderr, "amdgpu: command stream overflowed\n"); |
| } |
| |
| /* If the CS is not empty or overflowed.... */ |
| if (likely(radeon_emitted(&cs->main.base, 0) && |
| cs->main.base.current.cdw <= cs->main.base.current.max_dw && |
| !debug_get_option_noop())) { |
| struct amdgpu_cs_context *cur = cs->csc; |
| |
| /* Set IB sizes. */ |
| amdgpu_ib_finalize(&cs->main); |
| |
| /* Create a fence. */ |
| amdgpu_fence_reference(&cur->fence, NULL); |
| if (cs->next_fence) { |
| /* just move the reference */ |
| cur->fence = cs->next_fence; |
| cs->next_fence = NULL; |
| } else { |
| cur->fence = amdgpu_fence_create(cs->ctx, |
| cur->ib[IB_MAIN].ip_type, |
| cur->ib[IB_MAIN].ip_instance, |
| cur->ib[IB_MAIN].ring); |
| } |
| if (fence) |
| amdgpu_fence_reference(fence, cur->fence); |
| |
| amdgpu_cs_sync_flush(rcs); |
| |
| /* Prepare buffers. |
| * |
| * This fence must be held until the submission is queued to ensure |
| * that the order of fence dependency updates matches the order of |
| * submissions. |
| */ |
| simple_mtx_lock(&ws->bo_fence_lock); |
| amdgpu_add_fence_dependencies_bo_lists(cs); |
| |
| /* Swap command streams. "cst" is going to be submitted. */ |
| cs->csc = cs->cst; |
| cs->cst = cur; |
| |
| /* Submit. */ |
| util_queue_add_job(&ws->cs_queue, cs, &cs->flush_completed, |
| amdgpu_cs_submit_ib, NULL); |
| /* The submission has been queued, unlock the fence now. */ |
| simple_mtx_unlock(&ws->bo_fence_lock); |
| |
| if (!(flags & RADEON_FLUSH_ASYNC)) { |
| amdgpu_cs_sync_flush(rcs); |
| error_code = cur->error_code; |
| } |
| } else { |
| amdgpu_cs_context_cleanup(cs->csc); |
| } |
| |
| amdgpu_get_new_ib(&ws->base, cs, IB_MAIN); |
| |
| cs->main.base.used_gart = 0; |
| cs->main.base.used_vram = 0; |
| |
| if (cs->ring_type == RING_GFX) |
| ws->num_gfx_IBs++; |
| else if (cs->ring_type == RING_DMA) |
| ws->num_sdma_IBs++; |
| |
| return error_code; |
| } |
| |
| static void amdgpu_cs_destroy(struct radeon_winsys_cs *rcs) |
| { |
| struct amdgpu_cs *cs = amdgpu_cs(rcs); |
| |
| amdgpu_cs_sync_flush(rcs); |
| util_queue_fence_destroy(&cs->flush_completed); |
| p_atomic_dec(&cs->ctx->ws->num_cs); |
| pb_reference(&cs->main.big_ib_buffer, NULL); |
| FREE(cs->main.base.prev); |
| amdgpu_destroy_cs_context(&cs->csc1); |
| amdgpu_destroy_cs_context(&cs->csc2); |
| amdgpu_fence_reference(&cs->next_fence, NULL); |
| FREE(cs); |
| } |
| |
| static bool amdgpu_bo_is_referenced(struct radeon_winsys_cs *rcs, |
| struct pb_buffer *_buf, |
| enum radeon_bo_usage usage) |
| { |
| struct amdgpu_cs *cs = amdgpu_cs(rcs); |
| struct amdgpu_winsys_bo *bo = (struct amdgpu_winsys_bo*)_buf; |
| |
| return amdgpu_bo_is_referenced_by_cs_with_usage(cs, bo, usage); |
| } |
| |
| void amdgpu_cs_init_functions(struct amdgpu_winsys *ws) |
| { |
| ws->base.ctx_create = amdgpu_ctx_create; |
| ws->base.ctx_destroy = amdgpu_ctx_destroy; |
| ws->base.ctx_query_reset_status = amdgpu_ctx_query_reset_status; |
| ws->base.cs_create = amdgpu_cs_create; |
| ws->base.cs_destroy = amdgpu_cs_destroy; |
| ws->base.cs_add_buffer = amdgpu_cs_add_buffer; |
| ws->base.cs_validate = amdgpu_cs_validate; |
| ws->base.cs_check_space = amdgpu_cs_check_space; |
| ws->base.cs_get_buffer_list = amdgpu_cs_get_buffer_list; |
| ws->base.cs_flush = amdgpu_cs_flush; |
| ws->base.cs_get_next_fence = amdgpu_cs_get_next_fence; |
| ws->base.cs_is_buffer_referenced = amdgpu_bo_is_referenced; |
| ws->base.cs_sync_flush = amdgpu_cs_sync_flush; |
| ws->base.cs_add_fence_dependency = amdgpu_cs_add_fence_dependency; |
| ws->base.fence_wait = amdgpu_fence_wait_rel_timeout; |
| ws->base.fence_reference = amdgpu_fence_reference; |
| ws->base.fence_import_sync_file = amdgpu_fence_import_sync_file; |
| ws->base.fence_export_sync_file = amdgpu_fence_export_sync_file; |
| } |