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