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/*
* Copyright (c) 2018-2019 Lima Project
*
* 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, 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 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.
*
*/
#include <fcntl.h>
#include <libsync.h>
#include <util/u_memory.h>
#include <util/u_inlines.h>
#include "drm-uapi/lima_drm.h"
#include "lima_screen.h"
#include "lima_context.h"
#include "lima_fence.h"
#include "lima_submit.h"
struct pipe_fence_handle {
struct pipe_reference reference;
int fd;
};
static void
lima_create_fence_fd(struct pipe_context *pctx,
struct pipe_fence_handle **fence,
int fd, enum pipe_fd_type type)
{
assert(type == PIPE_FD_TYPE_NATIVE_SYNC);
*fence = lima_fence_create(fcntl(fd, F_DUPFD_CLOEXEC, 3));
}
static void
lima_fence_server_sync(struct pipe_context *pctx,
struct pipe_fence_handle *fence)
{
struct lima_context *ctx = lima_context(pctx);
sync_accumulate("lima", &ctx->in_sync_fd, fence->fd);
}
void lima_fence_context_init(struct lima_context *ctx)
{
ctx->base.create_fence_fd = lima_create_fence_fd;
ctx->base.fence_server_sync = lima_fence_server_sync;
}
struct pipe_fence_handle *
lima_fence_create(int fd)
{
struct pipe_fence_handle *fence;
fence = CALLOC_STRUCT(pipe_fence_handle);
if (!fence)
return NULL;
pipe_reference_init(&fence->reference, 1);
fence->fd = fd;
return fence;
}
static int
lima_fence_get_fd(struct pipe_screen *pscreen,
struct pipe_fence_handle *fence)
{
return fcntl(fence->fd, F_DUPFD_CLOEXEC, 3);
}
static void
lima_fence_destroy(struct pipe_fence_handle *fence)
{
if (fence->fd >= 0)
close(fence->fd);
FREE(fence);
}
static void
lima_fence_reference(struct pipe_screen *pscreen,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *fence)
{
if (pipe_reference(&(*ptr)->reference, &fence->reference))
lima_fence_destroy(*ptr);
*ptr = fence;
}
static bool
lima_fence_finish(struct pipe_screen *pscreen, struct pipe_context *pctx,
struct pipe_fence_handle *fence, uint64_t timeout)
{
return !sync_wait(fence->fd, timeout / 1000000);
}
void
lima_fence_screen_init(struct lima_screen *screen)
{
screen->base.fence_reference = lima_fence_reference;
screen->base.fence_finish = lima_fence_finish;
screen->base.fence_get_fd = lima_fence_get_fd;
}
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