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/*
* Copyright 2018 Collabora Ltd.
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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.
*/
#include "zink_batch.h"
#include "zink_context.h"
#include "zink_fence.h"
#include "zink_resource.h"
#include "zink_screen.h"
#include "util/set.h"
#include "util/u_memory.h"
static void
destroy_fence(struct zink_screen *screen, struct zink_tc_fence *mfence)
{
mfence->fence = NULL;
tc_unflushed_batch_token_reference(&mfence->tc_token, NULL);
FREE(mfence);
}
struct zink_tc_fence *
zink_create_tc_fence(void)
{
struct zink_tc_fence *mfence = CALLOC_STRUCT(zink_tc_fence);
if (!mfence)
return NULL;
pipe_reference_init(&mfence->reference, 1);
util_queue_fence_init(&mfence->ready);
return mfence;
}
struct pipe_fence_handle *
zink_create_tc_fence_for_tc(struct pipe_context *pctx, struct tc_unflushed_batch_token *tc_token)
{
struct zink_tc_fence *mfence = zink_create_tc_fence();
if (!mfence)
return NULL;
util_queue_fence_reset(&mfence->ready);
tc_unflushed_batch_token_reference(&mfence->tc_token, tc_token);
return (struct pipe_fence_handle*)mfence;
}
void
zink_fence_reference(struct zink_screen *screen,
struct zink_tc_fence **ptr,
struct zink_tc_fence *mfence)
{
if (pipe_reference(&(*ptr)->reference, &mfence->reference))
destroy_fence(screen, *ptr);
*ptr = mfence;
}
static void
fence_reference(struct pipe_screen *pscreen,
struct pipe_fence_handle **pptr,
struct pipe_fence_handle *pfence)
{
zink_fence_reference(zink_screen(pscreen), (struct zink_tc_fence **)pptr,
zink_tc_fence(pfence));
}
static bool
tc_fence_finish(struct zink_context *ctx, struct zink_tc_fence *mfence, uint64_t *timeout_ns)
{
if (!util_queue_fence_is_signalled(&mfence->ready)) {
int64_t abs_timeout = os_time_get_absolute_timeout(*timeout_ns);
if (mfence->tc_token) {
/* Ensure that zink_flush will be called for
* this mfence, but only if we're in the API thread
* where the context is current.
*
* Note that the batch containing the flush may already
* be in flight in the driver thread, so the mfence
* may not be ready yet when this call returns.
*/
threaded_context_flush(&ctx->base, mfence->tc_token, *timeout_ns == 0);
}
/* this is a tc mfence, so we're just waiting on the queue mfence to complete
* after being signaled by the real mfence
*/
if (*timeout_ns == PIPE_TIMEOUT_INFINITE) {
util_queue_fence_wait(&mfence->ready);
} else {
if (!util_queue_fence_wait_timeout(&mfence->ready, abs_timeout))
return false;
}
if (*timeout_ns && *timeout_ns != PIPE_TIMEOUT_INFINITE) {
int64_t time_ns = os_time_get_nano();
*timeout_ns = abs_timeout > time_ns ? abs_timeout - time_ns : 0;
}
}
return true;
}
bool
zink_vkfence_wait(struct zink_screen *screen, struct zink_fence *fence, uint64_t timeout_ns)
{
if (screen->device_lost)
return true;
if (p_atomic_read(&fence->completed))
return true;
assert(fence->batch_id);
assert(fence->submitted);
bool success = false;
VkResult ret;
if (timeout_ns)
ret = VKSCR(WaitForFences)(screen->dev, 1, &fence->fence, VK_TRUE, timeout_ns);
else
ret = VKSCR(GetFenceStatus)(screen->dev, fence->fence);
success = zink_screen_handle_vkresult(screen, ret);
if (success) {
p_atomic_set(&fence->completed, true);
zink_batch_state(fence)->usage.usage = 0;
zink_screen_update_last_finished(screen, fence->batch_id);
}
return success;
}
static bool
zink_fence_finish(struct zink_screen *screen, struct pipe_context *pctx, struct zink_tc_fence *mfence,
uint64_t timeout_ns)
{
pctx = threaded_context_unwrap_sync(pctx);
struct zink_context *ctx = zink_context(pctx);
if (screen->device_lost)
return true;
if (pctx && mfence->deferred_ctx == pctx) {
if (mfence->fence == ctx->deferred_fence) {
zink_context(pctx)->batch.has_work = true;
/* this must be the current batch */
pctx->flush(pctx, NULL, !timeout_ns ? PIPE_FLUSH_ASYNC : 0);
if (!timeout_ns)
return false;
}
}
/* need to ensure the tc mfence has been flushed before we wait */
bool tc_finish = tc_fence_finish(ctx, mfence, &timeout_ns);
/* the submit thread hasn't finished yet */
if (!tc_finish)
return false;
/* this was an invalid flush, just return completed */
if (!mfence->fence)
return true;
struct zink_fence *fence = mfence->fence;
unsigned submit_diff = zink_batch_state(mfence->fence)->submit_count - mfence->submit_count;
/* this batch is known to have finished because it has been submitted more than 1 time
* since the tc fence last saw it
*/
if (submit_diff > 1)
return true;
if (fence->submitted && zink_screen_check_last_finished(screen, fence->batch_id))
return true;
return zink_vkfence_wait(screen, fence, timeout_ns);
}
static bool
fence_finish(struct pipe_screen *pscreen, struct pipe_context *pctx,
struct pipe_fence_handle *pfence, uint64_t timeout_ns)
{
return zink_fence_finish(zink_screen(pscreen), pctx, zink_tc_fence(pfence),
timeout_ns);
}
void
zink_fence_server_sync(struct pipe_context *pctx, struct pipe_fence_handle *pfence)
{
struct zink_tc_fence *mfence = zink_tc_fence(pfence);
if (mfence->deferred_ctx == pctx)
return;
if (mfence->deferred_ctx) {
zink_context(pctx)->batch.has_work = true;
/* this must be the current batch */
pctx->flush(pctx, NULL, 0);
}
zink_fence_finish(zink_screen(pctx->screen), pctx, mfence, PIPE_TIMEOUT_INFINITE);
}
void
zink_screen_fence_init(struct pipe_screen *pscreen)
{
pscreen->fence_reference = fence_reference;
pscreen->fence_finish = fence_finish;
}
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