| /* |
| * 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 |
