blob: 908d02501faf016ff3f098d31400684fb910dcf1 [file] [log] [blame]
/*
* 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)
#define PHYS_TO_NID(addr) (0)
#endif