src/gallium/drivers/nouveau/nouveau_fence.h

   1
   2 #ifndef __NOUVEAU_FENCE_H__
   3 #define __NOUVEAU_FENCE_H__
   4
   5 #include "util/u_inlines.h"
   6 #include "util/list.h"
   7
   8 #define NOUVEAU_FENCE_STATE_AVAILABLE 0
   9 #define NOUVEAU_FENCE_STATE_EMITTING  1
  10 #define NOUVEAU_FENCE_STATE_EMITTED   2
  11 #define NOUVEAU_FENCE_STATE_FLUSHED   3
  12 #define NOUVEAU_FENCE_STATE_SIGNALLED 4
  13
  14 struct nouveau_fence_work {
  15    struct list_head list;
  16    void (*func)(void *);
  17    void *data;
  18 };
  19
  20 struct nouveau_fence {
  21    struct nouveau_fence *next;
  22    struct nouveau_screen *screen;
  23    int state;
  24    int ref;
  25    uint32_t sequence;
  26    struct list_head work;
  27 };
  28
  29 void nouveau_fence_emit(struct nouveau_fence *);
  30 void nouveau_fence_del(struct nouveau_fence *);
  31
  32 bool nouveau_fence_new(struct nouveau_screen *, struct nouveau_fence **,
  33                        bool emit);
  34 bool nouveau_fence_work(struct nouveau_fence *, void (*)(void *), void *);
  35 void nouveau_fence_update(struct nouveau_screen *, bool flushed);
  36 void nouveau_fence_next(struct nouveau_screen *);
  37 bool nouveau_fence_wait(struct nouveau_fence *);
  38 bool nouveau_fence_signalled(struct nouveau_fence *);
  39
  40 void nouveau_fence_unref_bo(void *data); /* generic unref bo callback */
  41
  42
  43 static inline void
  44 nouveau_fence_ref(struct nouveau_fence *fence, struct nouveau_fence **ref)
  45 {
  46    if (fence)
  47       ++fence->ref;
  48
  49    if (*ref) {
  50       if (--(*ref)->ref == 0)
  51          nouveau_fence_del(*ref);
  52    }
  53
  54    *ref = fence;
  55 }
  56
  57 static inline struct nouveau_fence *
  58 nouveau_fence(struct pipe_fence_handle *fence)
  59 {
  60    return (struct nouveau_fence *)fence;
  61 }
  62
  63 #endif // __NOUVEAU_FENCE_H__