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, 1 deletions

diff --git a/src/gallium/drivers/r300/r300_resource.c b/src/gallium/drivers/r300/r300_resource.c
index d788cedb17..f3d8c5b889 100644
--- a/src/gallium/drivers/r300/r300_resource.c
+++ b/src/gallium/drivers/r300/r300_resource.c
@@ -42,7 +42,7 @@ static unsigned r300_resource_is_referenced_by_cs(struct pipe_context *context,
                                                   struct pipe_resource *buf,
                                                   unsigned level, int layer)
 {
-    return r300_buffer_is_referenced(context, buf, R300_REF_CS);
+    return r300_buffer_is_referenced(context, buf);
 }
 
 void r300_init_resource_functions(struct r300_context *r300)