diff options
Diffstat (limited to 'arch/arm/mach-iop13xx/include/mach/memory.h')
| -rw-r--r-- | arch/arm/mach-iop13xx/include/mach/memory.h | 39 |
1 files changed, 15 insertions, 24 deletions
diff --git a/arch/arm/mach-iop13xx/include/mach/memory.h b/arch/arm/mach-iop13xx/include/mach/memory.h index b82602d529b..7c032d0ab24 100644 --- a/arch/arm/mach-iop13xx/include/mach/memory.h +++ b/arch/arm/mach-iop13xx/include/mach/memory.h @@ -6,7 +6,7 @@ /* * Physical DRAM offset. */ -#define PHYS_OFFSET UL(0x00000000) +#define PLAT_PHYS_OFFSET UL(0x00000000) #ifndef __ASSEMBLY__ @@ -16,24 +16,12 @@ #define IOP13XX_PMMR_P_START (IOP13XX_PMMR_PHYS_MEM_BASE) #define IOP13XX_PMMR_P_END (IOP13XX_PMMR_PHYS_MEM_BASE + IOP13XX_PMMR_SIZE) -/* - * Virtual view <-> PCI DMA view memory address translations - * virt_to_bus: Used to translate the virtual address to an - * address suitable to be passed to set_dma_addr - * bus_to_virt: Used to convert an address for DMA operations - * to an address that the kernel can use. - */ - -/* RAM has 1:1 mapping on the PCIe/x Busses */ -#define __virt_to_bus(x) (__virt_to_phys(x)) -#define __bus_to_virt(x) (__phys_to_virt(x)) - -static inline dma_addr_t __virt_to_lbus(unsigned long x) +static inline dma_addr_t __virt_to_lbus(void __iomem *x) { return x + IOP13XX_PMMR_PHYS_MEM_BASE - IOP13XX_PMMR_VIRT_MEM_BASE; } -static inline unsigned long __lbus_to_virt(dma_addr_t x) +static inline void __iomem *__lbus_to_virt(dma_addr_t x) { return x + IOP13XX_PMMR_VIRT_MEM_BASE - IOP13XX_PMMR_PHYS_MEM_BASE; } @@ -50,32 +38,35 @@ static inline unsigned long __lbus_to_virt(dma_addr_t x) #define __arch_dma_to_virt(dev, addr) \ ({ \ - unsigned long __virt; \ + void * __virt; \ dma_addr_t __dma = addr; \ if (is_lbus_device(dev) && __is_lbus_dma(__dma)) \ __virt = __lbus_to_virt(__dma); \ else \ - __virt = __bus_to_virt(__dma); \ - (void *)__virt; \ + __virt = (void *)__phys_to_virt(__dma); \ + __virt; \ }) #define __arch_virt_to_dma(dev, addr) \ ({ \ - unsigned long __virt = (unsigned long)addr; \ + void * __virt = addr; \ dma_addr_t __dma; \ if (is_lbus_device(dev) && __is_lbus_virt(__virt)) \ __dma = __virt_to_lbus(__virt); \ else \ - __dma = __virt_to_bus(__virt); \ + __dma = __virt_to_phys((unsigned long)__virt); \ __dma; \ }) -#define __arch_page_to_dma(dev, page) \ - __arch_virt_to_dma(dev, page_address(page)) +#define __arch_pfn_to_dma(dev, pfn) \ + ({ \ + /* __is_lbus_virt() can never be true for RAM pages */ \ + (dma_addr_t)__pfn_to_phys(pfn); \ + }) + +#define __arch_dma_to_pfn(dev, addr) __phys_to_pfn(addr) #endif /* CONFIG_ARCH_IOP13XX */ #endif /* !ASSEMBLY */ -#define PFN_TO_NID(addr) (0) - #endif |