gallium: Allow to use a single slab.

We often want to use a pool of equally sized buffers, so this makes the
slab suballocator a drop-in replacement.

1 files changed, 15 insertions, 7 deletions

diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h b/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
index b2d2520b67..96f9af3825 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
@@ -118,13 +118,21 @@ mm_bufmgr_create_from_buffer(struct pb_buffer *buffer,
  * Slab sub-allocator.
  */
 struct pb_manager *
-pb_slab_manager_create(struct pb_manager *provider, 
-                       const struct pb_desc *desc,
-                       size_t smallestSize,
-                       size_t numSizes,
-                       size_t desiredNumBuffers,
-                       size_t maxSlabSize,
-                       size_t pageAlignment);
+pb_slab_manager_create(struct pb_manager *provider,
+                       size_t bufSize,
+                       size_t slabSize,
+                       const struct pb_desc *desc);
+
+/**
+ * Allow a range of buffer size, by aggregating multiple slabs sub-allocators 
+ * with different bucket sizes.
+ */
+struct pb_manager *
+pb_slab_range_manager_create(struct pb_manager *provider,
+                             size_t minBufSize,
+                             size_t maxBufSize,
+                             size_t slabSize,
+                             const struct pb_desc *desc);
 
 
 /**