cell: implement fencing for texture buffers

If we delete a texture, we need to keep the underlying tiled data buffer
around until any rendering that references it has completed.
Keep a list of buffers referenced by a rendering batch.  Unref/free them when
the associated batch's fence is executed/signalled.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/gallium/drivers/cell/ppu/cell_texture.h b/src/gallium/drivers/cell/ppu/cell_texture.h
index a0757091b0..2f5fe0dd1b 100644
--- a/src/gallium/drivers/cell/ppu/cell_texture.h
+++ b/src/gallium/drivers/cell/ppu/cell_texture.h
@@ -48,7 +48,10 @@ struct cell_texture
    struct pipe_buffer *buffer;
    unsigned long buffer_size;
 
-   void *tiled_data[CELL_MAX_TEXTURE_LEVELS];  /* XXX this may be temporary */ /*ALIGN16*/
+   /** Texture data in tiled layout is held here */
+   struct pipe_buffer *tiled_buffer[CELL_MAX_TEXTURE_LEVELS];
+   /** Mapped, tiled texture data */
+   void *tiled_mapped[CELL_MAX_TEXTURE_LEVELS];
 };