/* * Copyright (C) 2012 Rob Clark * * 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 */ #include #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); 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); }