r300g: import the last bits of libdrm and cleanup the whole thing

Based on Dave's branch.

The majority of this commit is a cleanup, mainly renaming things.
There wasn't much code to import, just ioctl calls.

Also done:
- implemented unsynchronized bo_map (important optimization!)
- radeon_bo_is_referenced_by_cs is no longer a refcount hack
- dropped the libdrm_radeon dependency

I'm surprised that this has resulted in less code in the end.

1 files changed, 1 insertions, 2 deletions

diff --git a/src/gallium/drivers/r300/r300_screen_buffer.h b/src/gallium/drivers/r300/r300_screen_buffer.h
index 3276f843b0..ae87c4406a 100644
--- a/src/gallium/drivers/r300/r300_screen_buffer.h
+++ b/src/gallium/drivers/r300/r300_screen_buffer.h
@@ -50,8 +50,7 @@ struct pipe_resource *r300_user_buffer_create(struct pipe_screen *screen,
 					      unsigned bind);
 
 unsigned r300_buffer_is_referenced(struct pipe_context *context,
-				   struct pipe_resource *buf,
-                                   enum r300_reference_domain domain);
+				   struct pipe_resource *buf);
 
 /* Inline functions. */