c31ae4bb4a
This provides a reliable way for asm-generic/types.h and other files to find out if it is running on a 32 or 64 bit platform. We cannot use CONFIG_64BIT for this in headers that are included from user space because CONFIG symbols are not available there. We also cannot do it inside of asm/types.h because some headers need the word size but cannot include types.h. The solution is to introduce a new header <asm/bitsperlong.h> that defines both __BITS_PER_LONG for user space and BITS_PER_LONG for usage in the kernel. The asm-generic version falls back to 32 bit unless the architecture overrides it, which I did for all 64 bit platforms. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1994, 1995, 1996, 1999 by Ralf Baechle
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* Copyright (C) 2008 Wind River Systems,
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* written by Ralf Baechle
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* Copyright (C) 1999 Silicon Graphics, Inc.
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*/
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#ifndef _ASM_TYPES_H
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#define _ASM_TYPES_H
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/*
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* We don't use int-l64.h for the kernel anymore but still use it for
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* userspace to avoid code changes.
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*/
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#if (_MIPS_SZLONG == 64) && !defined(__KERNEL__)
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# include <asm-generic/int-l64.h>
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#else
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# include <asm-generic/int-ll64.h>
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#endif
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#ifndef __ASSEMBLY__
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typedef unsigned short umode_t;
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#endif /* __ASSEMBLY__ */
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/*
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* These aren't exported outside the kernel to avoid name space clashes
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*/
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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#if (defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR)) \
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|| defined(CONFIG_64BIT)
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typedef u64 dma_addr_t;
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#else
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typedef u32 dma_addr_t;
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#endif
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typedef u64 dma64_addr_t;
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/*
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* Don't use phys_t. You've been warned.
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*/
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#ifdef CONFIG_64BIT_PHYS_ADDR
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typedef unsigned long long phys_t;
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#else
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typedef unsigned long phys_t;
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* _ASM_TYPES_H */
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