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s390/xor: optimized xor routing using the XC instruction

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Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2016-02-02 14:40:40 +01:00
parent 9a99649f2a
commit 2cfc5f9ce7
3 changed files with 155 additions and 2 deletions
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21
arch/s390/include/asm/xor.h
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@@ -1 +1,20 @@
#include <asm-generic/xor.h>
/*
* Optimited xor routines
*
* Copyright IBM Corp. 2016
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
#ifndef _ASM_S390_XOR_H
#define _ASM_S390_XOR_H
extern struct xor_block_template xor_block_xc;
#undef XOR_TRY_TEMPLATES
#define XOR_TRY_TEMPLATES \
do { \
xor_speed(&xor_block_xc); \
} while (0)
#define XOR_SELECT_TEMPLATE(FASTEST) (&xor_block_xc)
#endif /* _ASM_S390_XOR_H */