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