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 struct iris_screen;
  31 struct iris_batch;
  32
  33 /**
  34  * A refcounted DRM Sync Object (drm_syncobj).
  35  */
  36 struct iris_syncobj {
  37    struct pipe_reference ref;
  38    uint32_t handle;
  39 };
  40
  41 struct iris_syncobj *iris_create_syncobj(struct iris_screen *screen);
  42 void iris_syncobj_destroy(struct iris_screen *, struct iris_syncobj *);
  43
  44 void iris_batch_add_syncobj(struct iris_batch *batch,
  45                             struct iris_syncobj *syncobj,
  46                             unsigned flags);
  47 bool iris_wait_syncobj(struct pipe_screen *screen,
  48                        struct iris_syncobj *syncobj,
  49                        int64_t timeout_nsec);
  50
  51 static inline void
  52 iris_syncobj_reference(struct iris_screen *screen,
  53                        struct iris_syncobj **dst,
  54                        struct iris_syncobj *src)
  55 {
  56    if (pipe_reference(*dst ? &(*dst)->ref : NULL,
  57                       src ? &src->ref : NULL))
  58       iris_syncobj_destroy(screen, *dst);
  59
  60    *dst = src;
  61 }
  62
  63 /* ------------------------------------------------------------------- */
  64
  65 void iris_init_context_fence_functions(struct pipe_context *ctx);
  66 void iris_init_screen_fence_functions(struct pipe_screen *screen);
  67
  68 #endif