Mesa (master): r600g: Respect PB_USAGE_UNSYNCHRONIZED in radeon_bo_pb_map_internal().

[Henri Verbeet]

Module: Mesa
Branch: master
Commit: 0f9181811fc0e2943b156acc4d43f2da8a4846d1
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0f9181811fc0e2943b156acc4d43f2da8a4846d1

Author: Henri Verbeet <hverbeet at gmail.com>
Date:   Sun Sep 19 22:58:42 2010 +0200

r600g: Respect PB_USAGE_UNSYNCHRONIZED in radeon_bo_pb_map_internal().

---

 src/gallium/winsys/r600/drm/radeon_bo_pb.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/src/gallium/winsys/r600/drm/radeon_bo_pb.c b/src/gallium/winsys/r600/drm/radeon_bo_pb.c
index b8744b0..93dc927 100644
--- a/src/gallium/winsys/r600/drm/radeon_bo_pb.c
+++ b/src/gallium/winsys/r600/drm/radeon_bo_pb.c
@@ -54,6 +54,14 @@ radeon_bo_pb_map_internal(struct pb_buffer *_buf,
 {
 	struct radeon_bo_pb *buf = radeon_bo_pb(_buf);
 
+	if (flags & PB_USAGE_UNSYNCHRONIZED) {
+		if (!buf->bo->data && radeon_bo_map(buf->mgr->radeon, buf->bo)) {
+			return NULL;
+		}
+		LIST_DELINIT(&buf->maplist);
+		return buf->bo->data;
+	}
+
 	if (p_atomic_read(&buf->bo->reference.count) > 1) {
 		if (flags & PB_USAGE_DONTBLOCK) {
 			return NULL;