swiotlb-xen: add struct device * parameter to xen_bus_to_phys

No functional changes. The parameter is unused in this patch but will be
used by next patches.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: Corey Minyard <cminyard@mvista.com>
Tested-by: Roman Shaposhnik <roman@zededa.com>
Link: https://lore.kernel.org/r/20200710223427.6897-4-sstabellini@kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index dbe710a59bf2241246118c3753b9020898c582fe..a8e447137faf9554a1003d8b8ef122e5ed987b06 100644 (file)
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -67,7 +67,7 @@ static inline dma_addr_t xen_phys_to_bus(struct device *dev, phys_addr_t paddr)
        return dma;
 }
 
-static inline phys_addr_t xen_bus_to_phys(dma_addr_t baddr)
+static inline phys_addr_t xen_bus_to_phys(struct device *dev, dma_addr_t baddr)
 {
        unsigned long xen_pfn = bfn_to_pfn(XEN_PFN_DOWN(baddr));
        dma_addr_t dma = (dma_addr_t)xen_pfn << XEN_PAGE_SHIFT;
@@ -339,7 +339,7 @@ xen_swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
 
        /* do not use virt_to_phys because on ARM it doesn't return you the
         * physical address */
-       phys = xen_bus_to_phys(dev_addr);
+       phys = xen_bus_to_phys(hwdev, dev_addr);
 
        /* Convert the size to actually allocated. */
        size = 1UL << (order + XEN_PAGE_SHIFT);
@@ -423,7 +423,7 @@ done:
 static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
                size_t size, enum dma_data_direction dir, unsigned long attrs)
 {
-       phys_addr_t paddr = xen_bus_to_phys(dev_addr);
+       phys_addr_t paddr = xen_bus_to_phys(hwdev, dev_addr);
 
        BUG_ON(dir == DMA_NONE);
 
@@ -439,7 +439,7 @@ static void
 xen_swiotlb_sync_single_for_cpu(struct device *dev, dma_addr_t dma_addr,
                size_t size, enum dma_data_direction dir)
 {
-       phys_addr_t paddr = xen_bus_to_phys(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);
@@ -452,7 +452,7 @@ static void
 xen_swiotlb_sync_single_for_device(struct device *dev, dma_addr_t dma_addr,
                size_t size, enum dma_data_direction dir)
 {
-       phys_addr_t paddr = xen_bus_to_phys(dma_addr);
+       phys_addr_t paddr = xen_bus_to_phys(dev, dma_addr);
 
        if (is_xen_swiotlb_buffer(dma_addr))
                swiotlb_tbl_sync_single(dev, paddr, size, dir, SYNC_FOR_DEVICE);