| /* |
| * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org> |
| * |
| * 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, sublicense, |
| * 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 above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| * |
| * Authors: |
| * Rob Clark <robclark@freedesktop.org> |
| */ |
| |
| #include <libsync.h> |
| |
| #include "util/u_inlines.h" |
| |
| #include "freedreno_fence.h" |
| #include "freedreno_context.h" |
| #include "freedreno_util.h" |
| |
| struct pipe_fence_handle { |
| struct pipe_reference reference; |
| /* fence holds a weak reference to the batch until the batch is flushed, |
| * at which point fd_fence_populate() is called and timestamp and possibly |
| * fence_fd become valid and the week reference is dropped. |
| */ |
| struct fd_batch *batch; |
| struct fd_pipe *pipe; |
| struct fd_screen *screen; |
| int fence_fd; |
| uint32_t timestamp; |
| }; |
| |
| static void fence_flush(struct pipe_fence_handle *fence) |
| { |
| if (fence->batch) |
| fd_batch_flush(fence->batch, true); |
| debug_assert(!fence->batch); |
| } |
| |
| void fd_fence_populate(struct pipe_fence_handle *fence, |
| uint32_t timestamp, int fence_fd) |
| { |
| if (!fence->batch) |
| return; |
| fence->timestamp = timestamp; |
| fence->fence_fd = fence_fd; |
| fence->batch = NULL; |
| } |
| |
| static void fd_fence_destroy(struct pipe_fence_handle *fence) |
| { |
| if (fence->fence_fd != -1) |
| close(fence->fence_fd); |
| fd_pipe_del(fence->pipe); |
| FREE(fence); |
| } |
| |
| void fd_fence_ref(struct pipe_fence_handle **ptr, |
| struct pipe_fence_handle *pfence) |
| { |
| if (pipe_reference(&(*ptr)->reference, &pfence->reference)) |
| fd_fence_destroy(*ptr); |
| |
| *ptr = pfence; |
| } |
| |
| bool fd_fence_finish(struct pipe_screen *pscreen, |
| struct pipe_context *ctx, |
| struct pipe_fence_handle *fence, |
| uint64_t timeout) |
| { |
| fence_flush(fence); |
| |
| if (fence->fence_fd != -1) { |
| int ret = sync_wait(fence->fence_fd, timeout / 1000000); |
| return ret == 0; |
| } |
| |
| if (fd_pipe_wait_timeout(fence->pipe, fence->timestamp, timeout)) |
| return false; |
| |
| return true; |
| } |
| |
| static struct pipe_fence_handle * fence_create(struct fd_context *ctx, |
| struct fd_batch *batch, uint32_t timestamp, int fence_fd) |
| { |
| struct pipe_fence_handle *fence; |
| |
| fence = CALLOC_STRUCT(pipe_fence_handle); |
| if (!fence) |
| return NULL; |
| |
| pipe_reference_init(&fence->reference, 1); |
| |
| fence->batch = batch; |
| fence->pipe = fd_pipe_ref(ctx->pipe); |
| fence->screen = ctx->screen; |
| fence->timestamp = timestamp; |
| fence->fence_fd = fence_fd; |
| |
| return fence; |
| } |
| |
| void fd_create_fence_fd(struct pipe_context *pctx, |
| struct pipe_fence_handle **pfence, int fd, |
| enum pipe_fd_type type) |
| { |
| assert(type == PIPE_FD_TYPE_NATIVE_SYNC); |
| *pfence = fence_create(fd_context(pctx), NULL, 0, dup(fd)); |
| } |
| |
| void fd_fence_server_sync(struct pipe_context *pctx, |
| struct pipe_fence_handle *fence) |
| { |
| struct fd_context *ctx = fd_context(pctx); |
| struct fd_batch *batch = fd_context_batch(ctx); |
| |
| fence_flush(fence); |
| |
| /* if not an external fence, then nothing more to do without preemption: */ |
| if (fence->fence_fd == -1) |
| return; |
| |
| if (sync_accumulate("freedreno", &batch->in_fence_fd, fence->fence_fd)) { |
| /* error */ |
| } |
| } |
| |
| int fd_fence_get_fd(struct pipe_screen *pscreen, |
| struct pipe_fence_handle *fence) |
| { |
| fence_flush(fence); |
| return dup(fence->fence_fd); |
| } |
| |
| struct pipe_fence_handle * fd_fence_create(struct fd_batch *batch) |
| { |
| return fence_create(batch->ctx, batch, 0, -1); |
| } |