#ifndef __ASM_ARCH_MEMORY_H #define __ASM_ARCH_MEMORY_H #include <mach/hardware.h> #ifndef __ASSEMBLY__ #if defined([31mCONFIG_ARCH_IOP13XX[0m) #define IOP13XX_PMMR_V_START (IOP13XX_PMMR_VIRT_MEM_BASE) #define IOP13XX_PMMR_V_END (IOP13XX_PMMR_VIRT_MEM_BASE + IOP13XX_PMMR_SIZE) #define IOP13XX_PMMR_P_START (IOP13XX_PMMR_PHYS_MEM_BASE) #define IOP13XX_PMMR_P_END (IOP13XX_PMMR_PHYS_MEM_BASE + IOP13XX_PMMR_SIZE) 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 void __iomem *__lbus_to_virt(dma_addr_t x) { return x + IOP13XX_PMMR_VIRT_MEM_BASE - IOP13XX_PMMR_PHYS_MEM_BASE; } #define __is_lbus_dma(a) \ ((a) >= IOP13XX_PMMR_P_START && (a) < IOP13XX_PMMR_P_END) #define __is_lbus_virt(a) \ ((a) >= IOP13XX_PMMR_V_START && (a) < IOP13XX_PMMR_V_END) /* Device is an lbus device if it is on the platform bus of the IOP13XX */ #define is_lbus_device(dev) \ (dev && strncmp(dev->bus->name, "platform", 8) == 0) #define __arch_dma_to_virt(dev, addr) \ ({ \ void * __virt; \ dma_addr_t __dma = addr; \ if (is_lbus_device(dev) && __is_lbus_dma(__dma)) \ __virt = __lbus_to_virt(__dma); \ else \ __virt = (void *)__phys_to_virt(__dma); \ __virt; \ }) #define __arch_virt_to_dma(dev, 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_phys((unsigned long)__virt); \ __dma; \ }) #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 */ #endif |