pipebuffer: Dump debugging info for fenced buffer list.

src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c

@@ -74,8 +74,12 @@ struct fenced_buffer_list
    struct pipe_winsys *winsys;
    
    size_t numDelayed;
-   
    struct list_head delayed;
+   
+#ifdef DEBUG
+   size_t numUnfenced;
+   struct list_head unfenced;
+#endif
 };
 
 
@@ -122,8 +126,11 @@ _fenced_buffer_add(struct fenced_buffer *fenced_buf)
    assert(fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_READ_WRITE);
    assert(fenced_buf->fence);
 
-   assert(!fenced_buf->head.prev);
-   assert(!fenced_buf->head.next);
+#ifdef DEBUG
+   LIST_DEL(&fenced_buf->head);
+   assert(fenced_list->numUnfenced);
+   --fenced_list->numUnfenced;
+#endif
    LIST_ADDTAIL(&fenced_buf->head, &fenced_list->delayed);
    ++fenced_list->numDelayed;
 }
@@ -135,8 +142,19 @@ _fenced_buffer_add(struct fenced_buffer *fenced_buf)
 static INLINE void
 _fenced_buffer_destroy(struct fenced_buffer *fenced_buf)
 {
+   struct fenced_buffer_list *fenced_list = fenced_buf->list;
+   
    assert(!fenced_buf->base.base.refcount);
    assert(!fenced_buf->fence);
+#ifdef DEBUG
+   assert(fenced_buf->head.prev);
+   assert(fenced_buf->head.next);
+   LIST_DEL(&fenced_buf->head);
+   assert(fenced_list->numUnfenced);
+   --fenced_list->numUnfenced;
+#else
+   (void)fenced_list;
+#endif
    pb_reference(&fenced_buf->buffer, NULL);
    FREE(fenced_buf);
 }
@@ -156,15 +174,16 @@ _fenced_buffer_remove(struct fenced_buffer_list *fenced_list,
    
    assert(fenced_buf->head.prev);
    assert(fenced_buf->head.next);
-   LIST_DEL(&fenced_buf->head);
-#ifdef DEBUG
-   fenced_buf->head.prev = NULL;
-   fenced_buf->head.next = NULL;
-#endif
    
+   LIST_DEL(&fenced_buf->head);
    assert(fenced_list->numDelayed);
    --fenced_list->numDelayed;
    
+#ifdef DEBUG
+   LIST_ADDTAIL(&fenced_buf->head, &fenced_list->unfenced);
+   ++fenced_list->numUnfenced;
+#endif
+   
    if(!fenced_buf->base.base.refcount)
       _fenced_buffer_destroy(fenced_buf);
 }
@@ -358,6 +377,13 @@ fenced_buffer_create(struct fenced_buffer_list *fenced_list,
    buf->buffer = buffer;
    buf->list = fenced_list;
    
+#ifdef DEBUG
+   pipe_mutex_lock(fenced_list->mutex);
+   LIST_ADDTAIL(&buf->head, &fenced_list->unfenced);
+   ++fenced_list->numUnfenced;
+   pipe_mutex_unlock(fenced_list->mutex);
+#endif
+
    return &buf->base;
 }
 
@@ -420,9 +446,13 @@ fenced_buffer_list_create(struct pipe_winsys *winsys)
    fenced_list->winsys = winsys;
 
    LIST_INITHEAD(&fenced_list->delayed);
-
    fenced_list->numDelayed = 0;
    
+#ifdef DEBUG
+   LIST_INITHEAD(&fenced_list->unfenced);
+   fenced_list->numUnfenced = 0;
+#endif
+
    pipe_mutex_init(fenced_list->mutex);
 
    return fenced_list;
@@ -439,6 +469,52 @@ fenced_buffer_list_check_free(struct fenced_buffer_list *fenced_list,
 }
 
 
+#ifdef DEBUG
+void
+fenced_buffer_list_dump(struct fenced_buffer_list *fenced_list)
+{
+   struct pipe_winsys *winsys = fenced_list->winsys;
+   struct list_head *curr, *next;
+   struct fenced_buffer *fenced_buf;
+   struct pipe_fence_handle *prev_fence = NULL;
+
+   pipe_mutex_lock(fenced_list->mutex);
+
+   debug_printf("%10s %7s %10s %s\n",
+                "buffer", "refcount", "fence", "signalled");
+   
+   curr = fenced_list->unfenced.next;
+   next = curr->next;
+   while(curr != &fenced_list->unfenced) {
+      fenced_buf = LIST_ENTRY(struct fenced_buffer, curr, head);
+      assert(!fenced_buf->fence);
+      debug_printf("%10p %7u\n",
+                   fenced_buf,
+                   fenced_buf->base.base.refcount);
+      curr = next; 
+      next = curr->next;
+   }
+   
+   curr = fenced_list->delayed.next;
+   next = curr->next;
+   while(curr != &fenced_list->delayed) {
+      int signaled;
+      fenced_buf = LIST_ENTRY(struct fenced_buffer, curr, head);
+      signaled = winsys->fence_signalled(winsys, fenced_buf->fence, 0);
+      debug_printf("%10p %7u %10p %s\n",
+                   fenced_buf,
+                   fenced_buf->base.base.refcount,
+                   fenced_buf->fence,
+                   signaled == 0 ? "y" : "n");
+      curr = next; 
+      next = curr->next;
+   }
+   
+   pipe_mutex_unlock(fenced_list->mutex);
+}
+#endif
+
+
 void
 fenced_buffer_list_destroy(struct fenced_buffer_list *fenced_list)
 {
@@ -454,6 +530,10 @@ fenced_buffer_list_destroy(struct fenced_buffer_list *fenced_list)
       pipe_mutex_lock(fenced_list->mutex);
    }
 
+#ifdef DEBUG
+   //assert(!fenced_list->numUnfenced);
+#endif
+      
    pipe_mutex_unlock(fenced_list->mutex);
    
    FREE(fenced_list);

src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.h

@@ -94,6 +94,13 @@ void
 fenced_buffer_list_check_free(struct fenced_buffer_list *fenced_list, 
                               int wait);
 
+
+#ifdef DEBUG
+void
+fenced_buffer_list_dump(struct fenced_buffer_list *fenced_list);
+#endif
+
+
 void
 fenced_buffer_list_destroy(struct fenced_buffer_list *fenced_list);
 

src/gallium/auxiliary/pipebuffer/pb_bufmgr_fenced.c

@@ -79,6 +79,10 @@ fenced_bufmgr_create_buffer(struct pb_manager *mgr,
       
       buf = fenced_mgr->provider->create_buffer(fenced_mgr->provider, size, desc);
       if(!buf) {
+#if 0
+         fenced_buffer_list_dump(fenced_mgr->fenced_list);
+#endif
+         
          /* give up */
          return NULL;
       }