LXR linux/arch/c6x/include/uapi/asm/swab.h

   1/*
   2 *  Copyright (C) 2011 Texas Instruments Incorporated
   3 *  Author: Mark Salter <msalter@redhat.com>
   4 *
   5 *  This program is free software; you can redistribute it and/or modify
   6 *  it under the terms of the GNU General Public License version 2 as
   7 *  published by the Free Software Foundation.
   8 */
   9#ifndef _ASM_C6X_SWAB_H
  10#define _ASM_C6X_SWAB_H
  11
  12static inline __attribute_const__ __u16 __c6x_swab16(__u16 val)
  13{
  14        asm("swap4 .l1 %0,%0\n" : "+a"(val));
  15        return val;
  16}
  17
  18static inline __attribute_const__ __u32 __c6x_swab32(__u32 val)
  19{
  20        asm("swap4 .l1 %0,%0\n"
  21            "swap2 .l1 %0,%0\n"
  22            : "+a"(val));
  23        return val;
  24}
  25
  26static inline __attribute_const__ __u64 __c6x_swab64(__u64 val)
  27{
  28        asm("   swap2 .s1 %p0,%P0\n"
  29            "|| swap2 .l1 %P0,%p0\n"
  30            "   swap4 .l1 %p0,%p0\n"
  31            "   swap4 .l1 %P0,%P0\n"
  32            : "+a"(val));
  33        return val;
  34}
  35
  36static inline __attribute_const__ __u32 __c6x_swahw32(__u32 val)
  37{
  38        asm("swap2 .l1 %0,%0\n" : "+a"(val));
  39        return val;
  40}
  41
  42static inline __attribute_const__ __u32 __c6x_swahb32(__u32 val)
  43{
  44        asm("swap4 .l1 %0,%0\n" : "+a"(val));
  45        return val;
  46}
  47
  48#define __arch_swab16 __c6x_swab16
  49#define __arch_swab32 __c6x_swab32
  50#define __arch_swab64 __c6x_swab64
  51#define __arch_swahw32 __c6x_swahw32
  52#define __arch_swahb32 __c6x_swahb32
  53
  54#endif /* _ASM_C6X_SWAB_H */
  55