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path: root/drivers/xen/swiotlb-xen.c
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Diffstat (limited to 'drivers/xen/swiotlb-xen.c')
-rw-r--r--drivers/xen/swiotlb-xen.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 4c549323c605..d757a3e610c6 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -82,8 +82,8 @@ static u64 start_dma_addr;
*/
static inline dma_addr_t xen_phys_to_bus(phys_addr_t paddr)
{
- unsigned long mfn = pfn_to_mfn(PFN_DOWN(paddr));
- dma_addr_t dma = (dma_addr_t)mfn << PAGE_SHIFT;
+ unsigned long bfn = pfn_to_bfn(PFN_DOWN(paddr));
+ dma_addr_t dma = (dma_addr_t)bfn << PAGE_SHIFT;
dma |= paddr & ~PAGE_MASK;
@@ -92,7 +92,7 @@ static inline dma_addr_t xen_phys_to_bus(phys_addr_t paddr)
static inline phys_addr_t xen_bus_to_phys(dma_addr_t baddr)
{
- unsigned long pfn = mfn_to_pfn(PFN_DOWN(baddr));
+ unsigned long pfn = bfn_to_pfn(PFN_DOWN(baddr));
dma_addr_t dma = (dma_addr_t)pfn << PAGE_SHIFT;
phys_addr_t paddr = dma;
@@ -110,15 +110,15 @@ static int check_pages_physically_contiguous(unsigned long pfn,
unsigned int offset,
size_t length)
{
- unsigned long next_mfn;
+ unsigned long next_bfn;
int i;
int nr_pages;
- next_mfn = pfn_to_mfn(pfn);
+ next_bfn = pfn_to_bfn(pfn);
nr_pages = (offset + length + PAGE_SIZE-1) >> PAGE_SHIFT;
for (i = 1; i < nr_pages; i++) {
- if (pfn_to_mfn(++pfn) != ++next_mfn)
+ if (pfn_to_bfn(++pfn) != ++next_bfn)
return 0;
}
return 1;
@@ -138,8 +138,8 @@ static inline int range_straddles_page_boundary(phys_addr_t p, size_t size)
static int is_xen_swiotlb_buffer(dma_addr_t dma_addr)
{
- unsigned long mfn = PFN_DOWN(dma_addr);
- unsigned long pfn = mfn_to_local_pfn(mfn);
+ unsigned long bfn = PFN_DOWN(dma_addr);
+ unsigned long pfn = bfn_to_local_pfn(bfn);
phys_addr_t paddr;
/* If the address is outside our domain, it CAN