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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* 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 "util/u_inlines.h"
#include "freedreno_fence.h"
#include "freedreno_context.h"
#include "freedreno_util.h"
struct pipe_fence_handle {
struct pipe_reference reference;
struct fd_context *ctx;
struct fd_screen *screen;
uint32_t timestamp;
};
void
fd_screen_fence_ref(struct pipe_screen *pscreen,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *pfence)
{
if (pipe_reference(&(*ptr)->reference, &pfence->reference))
FREE(*ptr);
*ptr = pfence;
}
/* TODO we need to spiff out libdrm_freedreno a bit to allow passing
* the timeout.. and maybe a better way to check if fence has been
* signaled. The current implementation is a bit lame for now to
* avoid bumping libdrm version requirement.
*/
boolean fd_screen_fence_signalled(struct pipe_screen *screen,
struct pipe_fence_handle *fence)
{
uint32_t timestamp = fd_ringbuffer_timestamp(fence->ctx->ring);
/* TODO util helper for compare w/ rollover? */
return timestamp >= fence->timestamp;
}
boolean fd_screen_fence_finish(struct pipe_screen *screen,
struct pipe_fence_handle *fence,
uint64_t timeout)
{
if (!timeout)
return fd_screen_fence_signalled(screen, fence);
if (fd_pipe_wait(fence->screen->pipe, fence->timestamp))
return false;
return true;
}
struct pipe_fence_handle * fd_fence_create(struct pipe_context *pctx)
{
struct pipe_fence_handle *fence;
struct fd_context *ctx = fd_context(pctx);
fence = CALLOC_STRUCT(pipe_fence_handle);
if (!fence)
return NULL;
pipe_reference_init(&fence->reference, 1);
fence->ctx = ctx;
fence->screen = ctx->screen;
fence->timestamp = fd_ringbuffer_timestamp(ctx->ring);
return fence;
}
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