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author | David Howells | 2012-10-09 10:47:31 +0200 |
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committer | David Howells | 2012-10-09 10:47:31 +0200 |
commit | 9807f75955ea7f1877981056755284481873115c (patch) | |
tree | 1e80f10ee622a1638d4b0835030d0d69b0492c55 /arch/s390/include/uapi/asm/swab.h | |
parent | Merge branch 'akpm' (Andrew's patch-bomb) (diff) | |
download | kernel-qcow2-linux-9807f75955ea7f1877981056755284481873115c.tar.gz kernel-qcow2-linux-9807f75955ea7f1877981056755284481873115c.tar.xz kernel-qcow2-linux-9807f75955ea7f1877981056755284481873115c.zip |
UAPI: (Scripted) Disintegrate arch/s390/include/asm
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/s390/include/uapi/asm/swab.h')
-rw-r--r-- | arch/s390/include/uapi/asm/swab.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/swab.h b/arch/s390/include/uapi/asm/swab.h new file mode 100644 index 000000000000..da3bfe5cc161 --- /dev/null +++ b/arch/s390/include/uapi/asm/swab.h @@ -0,0 +1,89 @@ +#ifndef _S390_SWAB_H +#define _S390_SWAB_H + +/* + * S390 version + * Copyright IBM Corp. 1999 + * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) + */ + +#include <linux/types.h> + +#ifndef __s390x__ +# define __SWAB_64_THRU_32__ +#endif + +#ifdef __s390x__ +static inline __u64 __arch_swab64p(const __u64 *x) +{ + __u64 result; + + asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x)); + return result; +} +#define __arch_swab64p __arch_swab64p + +static inline __u64 __arch_swab64(__u64 x) +{ + __u64 result; + + asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x)); + return result; +} +#define __arch_swab64 __arch_swab64 + +static inline void __arch_swab64s(__u64 *x) +{ + *x = __arch_swab64p(x); +} +#define __arch_swab64s __arch_swab64s +#endif /* __s390x__ */ + +static inline __u32 __arch_swab32p(const __u32 *x) +{ + __u32 result; + + asm volatile( +#ifndef __s390x__ + " icm %0,8,%O1+3(%R1)\n" + " icm %0,4,%O1+2(%R1)\n" + " icm %0,2,%O1+1(%R1)\n" + " ic %0,%1" + : "=&d" (result) : "Q" (*x) : "cc"); +#else /* __s390x__ */ + " lrv %0,%1" + : "=d" (result) : "m" (*x)); +#endif /* __s390x__ */ + return result; +} +#define __arch_swab32p __arch_swab32p + +#ifdef __s390x__ +static inline __u32 __arch_swab32(__u32 x) +{ + __u32 result; + + asm volatile("lrvr %0,%1" : "=d" (result) : "d" (x)); + return result; +} +#define __arch_swab32 __arch_swab32 +#endif /* __s390x__ */ + +static inline __u16 __arch_swab16p(const __u16 *x) +{ + __u16 result; + + asm volatile( +#ifndef __s390x__ + " icm %0,2,%O1+1(%R1)\n" + " ic %0,%1\n" + : "=&d" (result) : "Q" (*x) : "cc"); +#else /* __s390x__ */ + " lrvh %0,%1" + : "=d" (result) : "m" (*x)); +#endif /* __s390x__ */ + return result; +} +#define __arch_swab16p __arch_swab16p + +#endif /* _S390_SWAB_H */ |