/* * arch/arm/mach-ks8695/include/mach/memory.h * * Copyright (C) 2006 Andrew Victor * * KS8695 Memory definitions * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ #ifndef __ASM_ARCH_MEMORY_H #define __ASM_ARCH_MEMORY_H #include <mach/hardware.h> /* * Physical SRAM offset. */ #define PHYS_OFFSET KS8695_SDRAM_PA #ifndef __ASSEMBLY__ #ifdef CONFIG_PCI /* PCI mappings */ #define __virt_to_bus(x) ((x) - PAGE_OFFSET + KS8695_PCIMEM_PA) #define __bus_to_virt(x) ((x) - KS8695_PCIMEM_PA + PAGE_OFFSET) /* Platform-bus mapping */ extern struct bus_type platform_bus_type; #define is_lbus_device(dev) (dev && dev->bus == &platform_bus_type) #define __arch_dma_to_virt(dev, x) ({ (void *) (is_lbus_device(dev) ? \ __phys_to_virt(x) : __bus_to_virt(x)); }) #define __arch_virt_to_dma(dev, x) ({ is_lbus_device(dev) ? \ (dma_addr_t)__virt_to_phys(x) : (dma_addr_t)__virt_to_bus(x); }) #define __arch_pfn_to_dma(dev, pfn) \ ({ dma_addr_t __dma = __pfn_to_phys(pfn); \ if (!is_lbus_device(dev)) \ __dma = __dma - PHYS_OFFSET + KS8695_PCIMEM_PA; \ __dma; }) #define __arch_dma_to_pfn(dev, x) \ ({ dma_addr_t __dma = x; \ if (!is_lbus_device(dev)) \ __dma += PHYS_OFFSET - KS8695_PCIMEM_PA; \ __phys_to_pfn(__dma); \ }) #endif #endif #endif