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>
54 lines
970 B
C
54 lines
970 B
C
/*
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* include/asm-s390/types.h
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*
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* S390 version
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*
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* Derived from "include/asm-i386/types.h"
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*/
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#ifndef _S390_TYPES_H
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#define _S390_TYPES_H
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#include <asm-generic/int-ll64.h>
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#ifndef __ASSEMBLY__
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typedef unsigned short umode_t;
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/* A address type so that arithmetic can be done on it & it can be upgraded to
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64 bit when necessary
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*/
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typedef unsigned long addr_t;
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typedef __signed__ long saddr_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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typedef u64 dma64_addr_t;
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#ifdef __s390x__
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/* DMA addresses come in 32-bit and 64-bit flavours. */
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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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#ifndef __s390x__
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typedef union {
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unsigned long long pair;
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struct {
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unsigned long even;
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unsigned long odd;
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} subreg;
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} register_pair;
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#endif /* ! __s390x__ */
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* _S390_TYPES_H */
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