This was regressed by commit 39e7f6f8, although I don't know of any
actual issues caused by it.
The storage domain is read without TTM locking now, but the lock
never helped to prevent any actual races.
Cc: stable at vger.kernel.org
---
drivers/gpu/drm/radeon/radeon_gem.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c
b/drivers/gpu/drm/radeon/radeon_gem.c
index 7199e19..013ec71 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -476,6 +476,7 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void
*data,
r = ret;
/* Flush HDP cache via MMIO if necessary */
+ cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
if (rdev->asic->mmio_hdp_flush &&
radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
robj->rdev->asic->mmio_hdp_flush(rdev);
--
1.9.1
