[PATCH v9 02/13] xen/arm: remove outer_*_range call

Stefano Stabellini
2014-11-12T11:44:08Z

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>
---
arch/arm/xen/mm32.c | 9 ---------
1 file changed, 9 deletions(-)

diff --git a/arch/arm/xen/mm32.c b/arch/arm/xen/mm32.c
index a5a93fc..6153d61 100644
--- 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,
--
1.7.10.4