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xtensa: use the new byteorder headers
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Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
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Harvey Harrison authored and Chris Zankel committed Nov 6, 2008
1 parent a75952b commit 206ead2
Showing 1 changed file with 15 additions and 17 deletions.
32 changes: 15 additions & 17 deletions include/asm-xtensa/byteorder.h
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,17 @@
#include <asm/types.h>
#include <linux/compiler.h>

static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
#ifdef __XTENSA_EL__
# define __LITTLE_ENDIAN
#elif defined(__XTENSA_EB__)
# define __BIG_ENDIAN
#else
# error processor byte order undefined!
#endif

#define __SWAB_64_THRU_32__

static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
{
__u32 res;
/* instruction sequence from Xtensa ISA release 2/2000 */
Expand All @@ -28,8 +38,9 @@ static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
);
return res;
}
#define __arch_swab32 __arch_swab32

static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
{
/* Given that 'short' values are signed (i.e., can be negative),
* we cannot assume that the upper 16-bits of the register are
Expand Down Expand Up @@ -62,21 +73,8 @@ static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)

return res;
}
#define __arch_swab16 __arch_swab16

#define __arch__swab32(x) ___arch__swab32(x)
#define __arch__swab16(x) ___arch__swab16(x)

#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
#endif

#ifdef __XTENSA_EL__
# include <linux/byteorder/little_endian.h>
#elif defined(__XTENSA_EB__)
# include <linux/byteorder/big_endian.h>
#else
# error processor byte order undefined!
#endif
#include <linux/byteorder.h>

#endif /* _XTENSA_BYTEORDER_H */

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