Mesa (master): radeon: Wait for BO idle if necessary before mapping it.

[Michel Dänzer]

Module: Mesa
Branch: master
Commit: 060c7f2321f72503c14f9f3f7bb27d59d8a90224
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=060c7f2321f72503c14f9f3f7bb27d59d8a90224

Author: Michel Dänzer <daenzer at vmware.com>
Date:   Fri Jul  3 12:44:19 2009 +0200

radeon: Wait for BO idle if necessary before mapping it.

Fixes fighting between GPU and software rendering with TTM.

---

 src/mesa/drivers/dri/radeon/radeon_span.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/radeon/radeon_span.c b/src/mesa/drivers/dri/radeon/radeon_span.c
index e28f286..4f5480b 100644
--- a/src/mesa/drivers/dri/radeon/radeon_span.c
+++ b/src/mesa/drivers/dri/radeon/radeon_span.c
@@ -443,6 +443,8 @@ static void map_unmap_rb(struct gl_renderbuffer *rb, int flag)
 		return;
 
 	if (flag) {
+		if (rrb->bo->bom->funcs->bo_wait)
+			radeon_bo_wait(rrb->bo);
 		r = radeon_bo_map(rrb->bo, 1);
 		if (r) {
 			fprintf(stderr, "(%s) error(%d) mapping buffer.\n",