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, 2 insertions, 4 deletions

diff --git a/src/gallium/drivers/r300/r300_context.c b/src/gallium/drivers/r300/r300_context.c
index 960e3c346e..3608c04dc9 100644
--- a/src/gallium/drivers/r300/r300_context.c
+++ b/src/gallium/drivers/r300/r300_context.c
@@ -548,14 +548,12 @@ void r300_finish(struct r300_context *r300)
 
         for (i = 0; i < fb->nr_cbufs; i++) {
             if (fb->cbufs[i]->texture) {
-                r300->rws->buffer_wait(r300->rws,
-                    r300_resource(fb->cbufs[i]->texture)->buf);
+                r300->rws->buffer_wait(r300_resource(fb->cbufs[i]->texture)->buf);
                 return;
             }
         }
         if (fb->zsbuf && fb->zsbuf->texture) {
-            r300->rws->buffer_wait(r300->rws,
-                r300_resource(fb->zsbuf->texture)->buf);
+            r300->rws->buffer_wait(r300_resource(fb->zsbuf->texture)->buf);
         }
     }
 }