nvc0: buffer suballocation with a primitive slab allocator

1 files changed, 18 insertions, 11 deletions

diff --git a/src/gallium/drivers/nvc0/nvc0_fence.h b/src/gallium/drivers/nvc0/nvc0_fence.h
index 513ac07c1a8..7b31f28808c 100644
--- a/src/gallium/drivers/nvc0/nvc0_fence.h
+++ b/src/gallium/drivers/nvc0/nvc0_fence.h
@@ -3,24 +3,21 @@
 #define __NVC0_FENCE_H__
 
 #include "util/u_inlines.h"
+#include "util/u_double_list.h"
 
-struct nvc0_fence_trigger {
-   void (*func)(void *);
-   void *arg;
-   struct nvc0_fence_trigger *next;
-};
-
+#define NVC0_FENCE_STATE_AVAILABLE 0
 #define NVC0_FENCE_STATE_EMITTED   1
 #define NVC0_FENCE_STATE_SIGNALLED 2
 
-/* reference first, so pipe_reference works directly */
+struct nvc0_mm_allocation;
+
 struct nvc0_fence {
-   struct pipe_reference reference;
    struct nvc0_fence *next;
    struct nvc0_screen *screen;
    int state;
+   int ref;
    uint32_t sequence;
-   struct nvc0_fence_trigger trigger;
+   struct nvc0_mm_allocation *buffers;
 };
 
 void nvc0_fence_emit(struct nvc0_fence *);
@@ -31,10 +28,20 @@ boolean nvc0_fence_wait(struct nvc0_fence *);
 static INLINE void
 nvc0_fence_reference(struct nvc0_fence **ref, struct nvc0_fence *fence)
 {
-   if (pipe_reference(&(*ref)->reference, &fence->reference))
-      nvc0_fence_del(*ref);
+   if (*ref) {
+      if (--(*ref)->ref == 0)
+         nvc0_fence_del(*ref);
+   }
+   if (fence)
+      ++fence->ref;
 
    *ref = fence;
 }
 
+static INLINE struct nvc0_fence *
+nvc0_fence(struct pipe_fence_handle *fence)
+{
+   return (struct nvc0_fence *)fence;
+}
+
 #endif // __NVC0_FENCE_H__