projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 002547b4 RK |
1 | /* |
| 2 | * linux/include/asm-arm/page-nommu.h | |
| 3 | * | |
| 4 | * Copyright (C) 2004 Hyok S. Choi | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | */ | |
| 10 | #ifndef _ASMARM_PAGE_NOMMU_H | |
| 11 | #define _ASMARM_PAGE_NOMMU_H | |
| 12 | ||
| 13 | #if !defined(CONFIG_SMALL_TASKS) && PAGE_SHIFT < 13 | |
| 14 | #define KTHREAD_SIZE (8192) | |
| 15 | #else | |
| 16 | #define KTHREAD_SIZE PAGE_SIZE | |
| 17 | #endif | |
| 18 | ||
| 19 | #define get_user_page(vaddr) __get_free_page(GFP_KERNEL) | |
| 20 | #define free_user_page(page, addr) free_page(addr) | |
| 21 | ||
| 22 | #define clear_page(page) memset((page), 0, PAGE_SIZE) | |
| 23 | #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) | |
| 24 | ||
| 25 | #define clear_user_page(page, vaddr, pg) clear_page(page) | |
| 26 | #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) | |
| 27 | ||
| 28 | /* | |
| 29 | * These are used to make use of C type-checking.. | |
| 30 | */ | |
| 31 | typedef unsigned long pte_t; | |
| 32 | typedef unsigned long pmd_t; | |
| 33 | typedef unsigned long pgd_t[2]; | |
| 34 | typedef unsigned long pgprot_t; | |
| 35 | ||
| 36 | #define pte_val(x) (x) | |
| 37 | #define pmd_val(x) (x) | |
| 38 | #define pgd_val(x) ((x)[0]) | |
| 39 | #define pgprot_val(x) (x) | |
| 40 | ||
| 41 | #define __pte(x) (x) | |
| 42 | #define __pmd(x) (x) | |
| 43 | #define __pgprot(x) (x) | |
| 44 | ||
| 45 | /* to align the pointer to the (next) page boundary */ | |
| 46 | #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) | |
| 47 | ||
| 48 | extern unsigned long memory_start; | |
| 49 | extern unsigned long memory_end; | |
| 50 | ||
| 51 | #endif |