ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()

Replace the page_to_dma() and dma_to_page() macros with their PFN
equivalents.  This allows us to map parts of memory which do not have
a struct page allocated to them to bus addresses.  This will be used
internally by dma_alloc_coherent()/dma_alloc_writecombine().

Build tested on Versatile, OMAP1, IOP13xx and KS8695.

Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/arm/mach-iop13xx/include/mach/memory.h b/arch/arm/mach-iop13xx/include/mach/memory.h
index 7415e4338651..3ad455318868 100644
--- a/arch/arm/mach-iop13xx/include/mach/memory.h
+++ b/arch/arm/mach-iop13xx/include/mach/memory.h
@@ -58,13 +58,13 @@ static inline unsigned long __lbus_to_virt(dma_addr_t x)
                 __dma;                                                  \
         })
 
-#define __arch_page_to_dma(dev, page)                                   \
+#define __arch_pfn_to_dma(dev, pfn)                                     \
         ({                                                              \
                 /* __is_lbus_virt() can never be true for RAM pages */  \
-                (dma_addr_t)page_to_phys(page);                         \
+                (dma_addr_t)__pfn_to_phys(pfn);                         \
         })
 
-#define __arch_dma_to_page(dev, addr)   phys_to_page(addr)
+#define __arch_dma_to_pfn(dev, addr)    __phys_to_pfn(addr)
 
 #endif /* CONFIG_ARCH_IOP13XX */
 #endif /* !ASSEMBLY */