Revert "drm/etnaviv: trick drm_mm into giving out a low IOVA"

Now that commandstreams are handled through the cmdbuf suballocator
the workaround to make the IOVA games work is not needed anymore.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
index dcc86d8..6a8c28e 100644 (file)
--- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
@@ -117,14 +117,9 @@ 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,
-                       mmu->last_iova ? DRM_MM_SEARCH_DEFAULT : DRM_MM_SEARCH_BELOW);
+                       DRM_MM_SEARCH_DEFAULT);
 
                if (ret != -ENOSPC)
                        break;