Viewing file:  page.h (1.07 KB) -rw-r--r--
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/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _UAPI__ASM_ARC_PAGE_H
#define _UAPI__ASM_ARC_PAGE_H
/* PAGE_SHIFT determines the page size */
#if defined(CONFIG_ARC_PAGE_SIZE_16K)
#define PAGE_SHIFT 14
#elif defined(CONFIG_ARC_PAGE_SIZE_4K)
#define PAGE_SHIFT 12
#else
/*
* Default 8k
* done this way (instead of under CONFIG_ARC_PAGE_SIZE_8K) because adhoc
* user code (busybox appletlib.h) expects PAGE_SHIFT to be defined w/o
* using the correct uClibc header and in their build our autoconf.h is
* not available
*/
#define PAGE_SHIFT 13
#endif
#ifdef __ASSEMBLY__
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_OFFSET (0x80000000)
#else
#define PAGE_SIZE (1UL << PAGE_SHIFT) /* Default 8K */
#define PAGE_OFFSET (0x80000000UL) /* Kernel starts at 2G onwards */
#endif
#define PAGE_MASK (~(PAGE_SIZE-1))
#endif /* _UAPI__ASM_ARC_PAGE_H */
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