[PATCH v2 05/11] swiotlb-xen: add struct device* parameter to xen_dma_sync_for_cpu

Stefano Stabellini
2020-06-03T22:23:25Z

From: Stefano Stabellini <stefano.stabellini@xilinx.com>

The parameter is unused in this patch.
No functional changes.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Tested-by: Corey Minyard <cminyard@mvista.com>
Tested-by: Roman Shaposhnik <roman@zededa.com>
---
arch/arm/xen/mm.c | 5 +++--
drivers/xen/swiotlb-xen.c | 4 ++--
include/xen/swiotlb-xen.h | 5 +++--
3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index d40e9e5fc52b..1a00e8003c64 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -71,8 +71,9 @@ static void dma_cache_maint(dma_addr_t handle, size_t size, u32 op)
* pfn_valid returns true the pages is local and we can use the native
* dma-direct functions, otherwise we call the Xen specific version.
*/
-void xen_dma_sync_for_cpu(dma_addr_t handle, phys_addr_t paddr, size_t size,
- enum dma_data_direction dir)
+void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
+ phys_addr_t paddr, size_t size,
+ enum dma_data_direction dir)
{
if (pfn_valid(PFN_DOWN(handle)))
arch_sync_dma_for_cpu(paddr, size, dir);
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index e38a1cce4100..d9b3d9f2a7d1 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -425,7 +425,7 @@ static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
BUG_ON(dir == DMA_NONE);

if (!dev_is_dma_coherent(hwdev) && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
- xen_dma_sync_for_cpu(dev_addr, paddr, size, dir);
+ xen_dma_sync_for_cpu(hwdev, dev_addr, paddr, size, dir);

/* NOTE: We use dev_addr here, not paddr! */
if (is_xen_swiotlb_buffer(dev_addr))
@@ -439,7 +439,7 @@ xen_swiotlb_sync_single_for_cpu(struct device *dev, dma_addr_t dma_addr,
phys_addr_t paddr = xen_bus_to_phys(dev, dma_addr);

if (!dev_is_dma_coherent(dev))
- xen_dma_sync_for_cpu(dma_addr, paddr, size, dir);
+ xen_dma_sync_for_cpu(dev, dma_addr, paddr, size, dir);

if (is_xen_swiotlb_buffer(dma_addr))
swiotlb_tbl_sync_single(dev, paddr, size, dir, SYNC_FOR_CPU);
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index ffc0d3902b71..f62d1854780b 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -4,8 +4,9 @@

#include <linux/swiotlb.h>

-void xen_dma_sync_for_cpu(dma_addr_t handle, phys_addr_t paddr, size_t size,
- enum dma_data_direction dir);
+void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
+ phys_addr_t paddr, size_t size,
+ enum dma_data_direction dir);
void xen_dma_sync_for_device(dma_addr_t handle, phys_addr_t paddr, size_t size,
enum dma_data_direction dir);

--
2.17.1