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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-arm/] [arch-l7200/] [memory.h] - Rev 1765
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/* * linux/include/asm-arm/arch-l7200/memory.h * * Copyright (c) 2000 Steve Hill (sjhill@cotw.com) * Copyright (c) 2000 Rob Scott (rscott@mtrob.fdns.net) * * Changelog: * 03-13-2000 SJH Created * 04-13-2000 RS Changed bus macros for new addr * 05-03-2000 SJH Removed bus macros and fixed virt_to_phys macro */ #ifndef __ASM_ARCH_MEMORY_H #define __ASM_ARCH_MEMORY_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) /* * Physical DRAM offset on the L7200 SDB. */ #define PHYS_OFFSET (0xf0000000UL) /* * The DRAM is contiguous. */ #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) #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