1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
index 169ac96e8f08..fe0e85b41310 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
@@ -116,9 +116,14 @@ static int etnaviv_iommu_find_iova(struct etnaviv_iommu *mmu,
                 struct list_head list;
                 bool found;
 
+                /*
+                 * XXX: The DRM_MM_SEARCH_BELOW is really a hack to trick
+                 * drm_mm into giving out a low IOVA after address space
+                 * rollover. This needs a proper fix.
+                 */
                 ret = drm_mm_insert_node_in_range(&mmu->mm, node,
                         size, 0, mmu->last_iova, ~0UL,
-                        DRM_MM_SEARCH_DEFAULT);
+                        mmu->last_iova ? DRM_MM_SEARCH_DEFAULT : DRM_MM_SEARCH_BELOW);
 
                 if (ret != -ENOSPC)
                         break;