1 From 48c48c4437603bad79eb848ac03b21a86cc3bb90 Mon Sep 17 00:00:00 2001
2 From: popcornmix <popcornmix@gmail.com>
3 Date: Thu, 7 Aug 2014 02:03:50 +0100
4 Subject: [PATCH 057/114] Revert "ARM: dma: Use dma_pfn_offset for dma address
7 This reverts commit 6ce0d20016925d031f1e24d64302e4c976d7cec6.
9 arch/arm/include/asm/dma-mapping.h | 18 +-----------------
10 1 file changed, 1 insertion(+), 17 deletions(-)
12 --- a/arch/arm/include/asm/dma-mapping.h
13 +++ b/arch/arm/include/asm/dma-mapping.h
14 @@ -58,37 +58,21 @@ static inline int dma_set_mask(struct de
15 #ifndef __arch_pfn_to_dma
16 static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn)
19 - pfn -= dev->dma_pfn_offset;
20 return (dma_addr_t)__pfn_to_bus(pfn);
23 static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr)
25 - unsigned long pfn = __bus_to_pfn(addr);
28 - pfn += dev->dma_pfn_offset;
31 + return __bus_to_pfn(addr);
34 static inline void *dma_to_virt(struct device *dev, dma_addr_t addr)
37 - unsigned long pfn = dma_to_pfn(dev, addr);
39 - return phys_to_virt(__pfn_to_phys(pfn));
42 return (void *)__bus_to_virt((unsigned long)addr);
45 static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
48 - return pfn_to_dma(dev, virt_to_pfn(addr));
50 return (dma_addr_t)__virt_to_bus((unsigned long)(addr));