drm/radeon: let sa manager block for fences to wait for v2
Otherwise we can encounter out of memory situations under extreme load.
v2: add documentation for the new function
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 6715e4c..2cb355b 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -362,7 +362,7 @@
* alignment).
*/
struct radeon_sa_manager {
- spinlock_t lock;
+ wait_queue_head_t wq;
struct radeon_bo *bo;
struct list_head *hole;
struct list_head flist[RADEON_NUM_RINGS];