src/freedreno/drm/freedreno_ringbuffer.c

/*
 * Copyright (C) 2012-2018 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 <assert.h>

#include "freedreno_drmif.h"
#include "freedreno_priv.h"
#include "freedreno_ringbuffer.h"

struct fd_submit *
fd_submit_new(struct fd_pipe *pipe)
{
   struct fd_submit *submit = pipe->funcs->submit_new(pipe);
   submit->refcnt = 1;
   submit->pipe = fd_pipe_ref(pipe);
   return submit;
}

void
fd_submit_del(struct fd_submit *submit)
{
   if (!p_atomic_dec_zero(&submit->refcnt))
      return;

   if (submit->primary)
      fd_ringbuffer_del(submit->primary);

   fd_pipe_del(submit->pipe);

   submit->funcs->destroy(submit);
}

struct fd_submit *
fd_submit_ref(struct fd_submit *submit)
{
   p_atomic_inc(&submit->refcnt);
   return submit;
}

int
fd_submit_flush(struct fd_submit *submit, int in_fence_fd,
                struct fd_submit_fence *out_fence)
{
   submit->fence = fd_pipe_emit_fence(submit->pipe, submit->primary);
   return submit->funcs->flush(submit, in_fence_fd, out_fence);
}

struct fd_ringbuffer *
fd_submit_new_ringbuffer(struct fd_submit *submit, uint32_t size,
                         enum fd_ringbuffer_flags flags)
{
   assert(!(flags & _FD_RINGBUFFER_OBJECT));
   if (flags & FD_RINGBUFFER_STREAMING) {
      assert(!(flags & FD_RINGBUFFER_GROWABLE));
      assert(!(flags & FD_RINGBUFFER_PRIMARY));
   }
   struct fd_ringbuffer *ring =
         submit->funcs->new_ringbuffer(submit, size, flags);

   if (flags & FD_RINGBUFFER_PRIMARY) {
      assert(!submit->primary);
      submit->primary = fd_ringbuffer_ref(ring);
   }

   return ring;
}

struct fd_ringbuffer *
fd_ringbuffer_new_object(struct fd_pipe *pipe, uint32_t size)
{
   return pipe->funcs->ringbuffer_new_object(pipe, size);
}