1 files changed, 3 insertions, 13 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 155d571f5e26..2e19500921f9 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -313,19 +313,6 @@ config 8XX_MINIMAL_FPEMU
 
           It is recommended that you build a soft-float userspace instead.
 
-config IOMMU_VMERGE
-        bool "Enable IOMMU virtual merging"
-        depends on PPC64
-        default y
-        help
-          Cause IO segments sent to a device for DMA to be merged virtually
-          by the IOMMU when they happen to have been allocated contiguously.
-          This doesn't add pressure to the IOMMU allocator. However, some
-          drivers don't support getting large merged segments coming back
-          from *_map_sg().
-
-          Most drivers don't have this problem; it is safe to say Y here.
-
 config IOMMU_HELPER
         def_bool PPC64
 
@@ -672,6 +659,9 @@ config ZONE_DMA
         bool
         default y
 
+config NEED_DMA_MAP_STATE
+        def_bool (PPC64 || NOT_COHERENT_CACHE)
+
 config GENERIC_ISA_DMA
         bool
         depends on PPC64 || POWER4 || 6xx && !CPM2