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/*
* 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>
*/
#ifndef FREEDRENO_FENCE_H_
#define FREEDRENO_FENCE_H_
#include "pipe/p_context.h"
#include "util/u_queue.h"
#include "common/freedreno_common.h"
#include "drm/freedreno_drmif.h"
BEGINC;
struct pipe_fence_handle {
struct pipe_reference reference;
/* When a pre-created unflushed fence has no actual rendering to flush, and
* the last_fence optimization is used, this will be a reference to the
* *actualy* fence which needs to be flushed before waiting.
*/
struct pipe_fence_handle *last_fence;
/* fence holds a reference to the batch until the batch is flushed, to
* accommodate PIPE_FLUSH_DEFERRED. When the batch is actually flushed, it
* is cleared (before the batch reference is dropped). If we need to wait
* on a fence, and the batch is not NULL, we need to flush it.
*
* Note that with u_threaded_context async flushes, if a fence is requested
* by the frontend, the fence is initially created without a reference
* to the batch, which is filled in later when fd_context_flush() is called
* from the driver thread. In this case tc_token will be non-null, in
* which case threaded_context_flush() should be called in fd_fence_finish()
*/
struct fd_batch *batch;
struct tc_unflushed_batch_token *tc_token;
bool needs_signal;
/* For threaded_context async flushes, we must wait on the fence, signaled
* when fence->batch is cleared, to know that the rendering has been actually
* flushed from the driver thread.
*
* The ready fence is created signaled for non-async-flush fences, and only
* transitions once from unsignalled->signalled for async-flush fences
*/
struct util_queue_fence ready;
/* Note that a fence can outlive the ctx, so we can only assume this is a
* valid ptr for unflushed fences. However we hold a reference to the
* fence->pipe so that is safe to use after flushing.
*/
struct fd_context *ctx;
struct fd_pipe *pipe;
struct fd_screen *screen;
struct fd_fence *fence;
bool use_fence_fd;
bool flushed;
uint32_t syncobj;
};
void fd_pipe_fence_repopulate(struct pipe_fence_handle *fence,
struct pipe_fence_handle *last_fence);
void fd_pipe_fence_ref(struct pipe_fence_handle **ptr,
struct pipe_fence_handle *pfence);
bool fd_pipe_fence_finish(struct pipe_screen *pscreen, struct pipe_context *ctx,
struct pipe_fence_handle *pfence, uint64_t timeout);
void fd_create_pipe_fence_fd(struct pipe_context *pctx,
struct pipe_fence_handle **pfence, int fd,
enum pipe_fd_type type);
void fd_pipe_fence_server_sync(struct pipe_context *pctx,
struct pipe_fence_handle *fence);
void fd_pipe_fence_server_signal(struct pipe_context *ctx,
struct pipe_fence_handle *fence);
int fd_pipe_fence_get_fd(struct pipe_screen *pscreen,
struct pipe_fence_handle *pfence);
bool fd_pipe_fence_is_fd(struct pipe_fence_handle *fence);
struct fd_batch;
struct pipe_fence_handle *fd_pipe_fence_create(struct fd_batch *batch);
void fd_pipe_fence_set_batch(struct pipe_fence_handle *fence,
struct fd_batch *batch);
void fd_pipe_fence_set_submit_fence(struct pipe_fence_handle *fence,
struct fd_fence *submit_fence);
struct tc_unflushed_batch_token;
struct pipe_fence_handle *
fd_pipe_fence_create_unflushed(struct pipe_context *pctx,
struct tc_unflushed_batch_token *tc_token);
ENDC;
#endif /* FREEDRENO_FENCE_H_ */
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