svga: Flush the hwtnl primitives before writing to buffers.

svga keeps a small queue of similar primitive draws in order to coalesce
them into a single draw primitive command.

But the buffers referred in primitives not yet emitted were being ignored
in the considerations to flush or not the context.

This fixes piglit vbo-map-remap, vbo-subdata-sync, vbo-subdata-zero, and
Seeker.

Based on investigation and patch from Brian Paul.

Reviewed-By: Brian Paul <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gallium/drivers/svga/svga_context.h b/src/gallium/drivers/svga/svga_context.h
index a03a81749bb..07d3c5f2c25 100644
--- a/src/gallium/drivers/svga/svga_context.h
+++ b/src/gallium/drivers/svga/svga_context.h
@@ -454,6 +454,8 @@ void svga_context_flush( struct svga_context *svga,
                          struct pipe_fence_handle **pfence );
 
 void svga_hwtnl_flush_retry( struct svga_context *svga );
+void svga_hwtnl_flush_buffer( struct svga_context *svga,
+                              struct pipe_resource *buffer );
 
 void svga_surfaces_flush(struct svga_context *svga);