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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>
*/
#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, 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_screen *pscreen,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *pfence)
{
if (pipe_reference(&(*ptr)->reference, &pfence->reference))
fd_fence_destroy(*ptr);
*ptr = pfence;
}
boolean 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);
}
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