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Diffstat (limited to 'arch/arm/mach-iop13xx/include/mach/memory.h')
-rw-r--r--arch/arm/mach-iop13xx/include/mach/memory.h16
1 files changed, 2 insertions, 14 deletions
diff --git a/arch/arm/mach-iop13xx/include/mach/memory.h b/arch/arm/mach-iop13xx/include/mach/memory.h
index b82602d529bf..e012bf13c955 100644
--- a/arch/arm/mach-iop13xx/include/mach/memory.h
+++ b/arch/arm/mach-iop13xx/include/mach/memory.h
@@ -16,18 +16,6 @@
16#define IOP13XX_PMMR_P_START (IOP13XX_PMMR_PHYS_MEM_BASE) 16#define IOP13XX_PMMR_P_START (IOP13XX_PMMR_PHYS_MEM_BASE)
17#define IOP13XX_PMMR_P_END (IOP13XX_PMMR_PHYS_MEM_BASE + IOP13XX_PMMR_SIZE) 17#define IOP13XX_PMMR_P_END (IOP13XX_PMMR_PHYS_MEM_BASE + IOP13XX_PMMR_SIZE)
18 18
19/*
20 * Virtual view <-> PCI DMA view memory address translations
21 * virt_to_bus: Used to translate the virtual address to an
22 * address suitable to be passed to set_dma_addr
23 * bus_to_virt: Used to convert an address for DMA operations
24 * to an address that the kernel can use.
25 */
26
27/* RAM has 1:1 mapping on the PCIe/x Busses */
28#define __virt_to_bus(x) (__virt_to_phys(x))
29#define __bus_to_virt(x) (__phys_to_virt(x))
30
31static inline dma_addr_t __virt_to_lbus(unsigned long x) 19static inline dma_addr_t __virt_to_lbus(unsigned long x)
32{ 20{
33 return x + IOP13XX_PMMR_PHYS_MEM_BASE - IOP13XX_PMMR_VIRT_MEM_BASE; 21 return x + IOP13XX_PMMR_PHYS_MEM_BASE - IOP13XX_PMMR_VIRT_MEM_BASE;
@@ -55,7 +43,7 @@ static inline unsigned long __lbus_to_virt(dma_addr_t x)
55 if (is_lbus_device(dev) && __is_lbus_dma(__dma)) \ 43 if (is_lbus_device(dev) && __is_lbus_dma(__dma)) \
56 __virt = __lbus_to_virt(__dma); \ 44 __virt = __lbus_to_virt(__dma); \
57 else \ 45 else \
58 __virt = __bus_to_virt(__dma); \ 46 __virt = __phys_to_virt(__dma); \
59 (void *)__virt; \ 47 (void *)__virt; \
60 }) 48 })
61 49
@@ -66,7 +54,7 @@ static inline unsigned long __lbus_to_virt(dma_addr_t x)
66 if (is_lbus_device(dev) && __is_lbus_virt(__virt)) \ 54 if (is_lbus_device(dev) && __is_lbus_virt(__virt)) \
67 __dma = __virt_to_lbus(__virt); \ 55 __dma = __virt_to_lbus(__virt); \
68 else \ 56 else \
69 __dma = __virt_to_bus(__virt); \ 57 __dma = __virt_to_phys(__virt); \
70 __dma; \ 58 __dma; \
71 }) 59 })
72 60