src/gallium/drivers/iris/iris_fence.h

   1 /*
   2  * Copyright © 2018 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #ifndef IRIS_FENCE_H
  25 #define IRIS_FENCE_H
  26
  27 #include "util/u_inlines.h"
  28
  29 struct pipe_screen;
  30
  31 struct iris_syncpt {
  32    struct pipe_reference ref;
  33    uint32_t handle;
  34 };
  35
  36 void iris_init_context_fence_functions(struct pipe_context *ctx);
  37 void iris_init_screen_fence_functions(struct pipe_screen *screen);
  38
  39 struct iris_syncpt *iris_create_syncpt(struct iris_screen *screen);
  40 void iris_syncpt_destroy(struct iris_screen *, struct iris_syncpt *);
  41 void iris_batch_add_syncpt(struct iris_batch *batch,
  42                            struct iris_syncpt *syncpt,
  43                            unsigned flags);
  44
  45 static inline void
  46 iris_syncpt_reference(struct iris_screen *screen,
  47                       struct iris_syncpt **dst,
  48                       struct iris_syncpt *src)
  49 {
  50    if (pipe_reference(&(*dst)->ref, &src->ref))
  51       iris_syncpt_destroy(screen, *dst);
  52
  53    *dst = src;
  54 }
  55
  56 #endif