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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-arm/] [arch-cl7500/] [memory.h] - Rev 1765
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/* * linux/include/asm-arm/arch-cl7500/memory.h * * Copyright (c) 1996,1997,1998 Russell King. * * Changelog: * 20-Oct-1996 RMK Created * 31-Dec-1997 RMK Fixed definitions to reduce warnings * 11-Jan-1998 RMK Uninlined to reduce hits on cache * 08-Feb-1998 RMK Added __virt_to_bus and __bus_to_virt * 21-Mar-1999 RMK Renamed to memory.h * RMK Added TASK_SIZE and PAGE_OFFSET */ #ifndef __ASM_ARCH_MMU_H #define __ASM_ARCH_MMU_H /* * Task size: 3GB */ #define TASK_SIZE (0xc0000000UL) #define TASK_SIZE_26 (0x04000000UL) /* * This decides where the kernel will search for a free chunk of vm * space during mmap's. */ #define TASK_UNMAPPED_BASE (TASK_SIZE / 3) /* * Page offset: 3GB */ #define PAGE_OFFSET (0xc0000000UL) #define PHYS_OFFSET (0x10000000UL) #define __virt_to_phys__is_a_macro #define __virt_to_phys(vpage) ((vpage) - PAGE_OFFSET + PHYS_OFFSET) #define __phys_to_virt__is_a_macro #define __phys_to_virt(ppage) ((ppage) + PAGE_OFFSET - PHYS_OFFSET) /* * These are exactly the same on the RiscPC as the * physical memory view. */ #define __virt_to_bus__is_a_macro #define __virt_to_bus(x) __virt_to_phys(x) #define __bus_to_virt__is_a_macro #define __bus_to_virt(x) __phys_to_virt(x) #endif