xen/arm: remove outer_*_range call

Dom0 is not actually capable of issuing outer_inv_range or
outer_clean_range calls.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm/xen/mm32.c b/arch/arm/xen/mm32.c
index a5a93fc..6153d61 100644 (file)
--- a/arch/arm/xen/mm32.c
+++ b/arch/arm/xen/mm32.c
@@ -61,9 +61,6 @@ static void __xen_dma_page_dev_to_cpu(struct device *hwdev, dma_addr_t handle,
        /* Cannot use __dma_page_dev_to_cpu because we don't have a
         * struct page for handle */
 
-       if (dir != DMA_TO_DEVICE)
-               outer_inv_range(handle, handle + size);
-
        dma_cache_maint(handle & PAGE_MASK, handle & ~PAGE_MASK, size, dir, dmac_unmap_area);
 }
 
@@ -72,12 +69,6 @@ static void __xen_dma_page_cpu_to_dev(struct device *hwdev, dma_addr_t handle,
 {
 
        dma_cache_maint(handle & PAGE_MASK, handle & ~PAGE_MASK, size, dir, dmac_map_area);
-
-       if (dir == DMA_FROM_DEVICE) {
-               outer_inv_range(handle, handle + size);
-       } else {
-               outer_clean_range(handle, handle + size);
-       }
 }
 
 void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,