src/gallium/drivers/nvc0/nvc0_fence.h

   1
   2 #ifndef __NVC0_FENCE_H__
   3 #define __NVC0_FENCE_H__
   4
   5 #include "util/u_inlines.h"
   6 #include "util/u_double_list.h"
   7
   8 #define NVC0_FENCE_STATE_AVAILABLE 0
   9 #define NVC0_FENCE_STATE_EMITTED   1
  10 #define NVC0_FENCE_STATE_SIGNALLED 2
  11
  12 struct nvc0_mm_allocation;
  13
  14 struct nvc0_fence {
  15    struct nvc0_fence *next;
  16    struct nvc0_screen *screen;
  17    int state;
  18    int ref;
  19    uint32_t sequence;
  20    struct nvc0_mm_allocation *buffers;
  21 };
  22
  23 void nvc0_fence_emit(struct nvc0_fence *);
  24 void nvc0_fence_del(struct nvc0_fence *);
  25
  26 boolean nvc0_fence_wait(struct nvc0_fence *);
  27 boolean nvc0_fence_signalled(struct nvc0_fence *);
  28
  29 static INLINE void
  30 nvc0_fence_reference(struct nvc0_fence **ref, struct nvc0_fence *fence)
  31 {
  32    if (*ref) {
  33       if (--(*ref)->ref == 0)
  34          nvc0_fence_del(*ref);
  35    }
  36    if (fence)
  37       ++fence->ref;
  38
  39    *ref = fence;
  40 }
  41
  42 static INLINE struct nvc0_fence *
  43 nvc0_fence(struct pipe_fence_handle *fence)
  44 {
  45    return (struct nvc0_fence *)fence;
  46 }
  47
  48 #endif // __NVC0_FENCE_H__