1 /* 2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 9 #ifndef _UAPI__ASM_ARC_PAGE_H 10 #define _UAPI__ASM_ARC_PAGE_H 11 12 #include <linux/const.h> 13 14 /* PAGE_SHIFT determines the page size */ 15 #if defined(CONFIG_ARC_PAGE_SIZE_16K) 16 #define PAGE_SHIFT 14 17 #elif defined(CONFIG_ARC_PAGE_SIZE_4K) 18 #define PAGE_SHIFT 12 19 #else 20 /* 21 * Default 8k 22 * done this way (instead of under CONFIG_ARC_PAGE_SIZE_8K) because adhoc 23 * user code (busybox appletlib.h) expects PAGE_SHIFT to be defined w/o 24 * using the correct uClibc header and in their build our autoconf.h is 25 * not available 26 */ 27 #define PAGE_SHIFT 13 28 #endif 29 30 #define PAGE_SIZE _BITUL(PAGE_SHIFT) /* Default 8K */ 31 #define PAGE_OFFSET _AC(0x80000000, UL) /* Kernel starts at 2G onwrds */ 32 33 #define PAGE_MASK (~(PAGE_SIZE-1)) 34 35 36 #endif /* _UAPI__ASM_ARC_PAGE_H */ 37