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 pipe_debug_callback;
  15
  16 struct nouveau_fence_work {
  17    struct list_head list;
  18    void (*func)(void *);
  19    void *data;
  20 };
  21
  22 struct nouveau_fence {
  23    struct nouveau_fence *next;
  24    struct nouveau_screen *screen;
  25    int state;
  26    int ref;
  27    uint32_t sequence;
  28    uint32_t work_count;
  29    struct list_head work;
  30 };
  31
  32 void nouveau_fence_emit(struct nouveau_fence *);
  33 void nouveau_fence_del(struct nouveau_fence *);
  34
  35 bool nouveau_fence_new(struct nouveau_screen *, struct nouveau_fence **);
  36 bool nouveau_fence_work(struct nouveau_fence *, void (*)(void *), void *);
  37 void nouveau_fence_update(struct nouveau_screen *, bool flushed);
  38 void nouveau_fence_next(struct nouveau_screen *);
  39 bool nouveau_fence_wait(struct nouveau_fence *, struct pipe_debug_callback *);
  40 bool nouveau_fence_signalled(struct nouveau_fence *);
  41
  42 void nouveau_fence_unref_bo(void *data); /* generic unref bo callback */
  43
  44
  45 static inline void
  46 nouveau_fence_ref(struct nouveau_fence *fence, struct nouveau_fence **ref)
  47 {
  48    if (fence)
  49       ++fence->ref;
  50
  51    if (*ref) {
  52       if (--(*ref)->ref == 0)
  53          nouveau_fence_del(*ref);
  54    }
  55
  56    *ref = fence;
  57 }
  58
  59 static inline struct nouveau_fence *
  60 nouveau_fence(struct pipe_fence_handle *fence)
  61 {
  62    return (struct nouveau_fence *)fence;
  63 }
  64
  65 #endif // __NOUVEAU_FENCE_H__