parisc: introduce asm/swab.h

Fix for the linux/byteorder.h removal.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 64 deletions

diff --git a/arch/parisc/include/asm/byteorder.h b/arch/parisc/include/asm/byteorder.h
index 83095c5bb379..da66029c4cb2 100644
--- a/arch/parisc/include/asm/byteorder.h
+++ b/arch/parisc/include/asm/byteorder.h
@@ -1,69 +1,7 @@
 #ifndef _PARISC_BYTEORDER_H
 #define _PARISC_BYTEORDER_H
 
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#define __BIG_ENDIAN
-#define __SWAB_64_THRU_32__
-
-static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
-{
-        __asm__("dep %0, 15, 8, %0\n\t"         /* deposit 00ab -> 0bab */
-                "shd %%r0, %0, 8, %0"           /* shift 000000ab -> 00ba */
-                : "=r" (x)
-                : "0" (x));
-        return x;
-}
-#define __arch_swab16 __arch_swab16
-
-static inline __attribute_const__ __u32 __arch_swab24(__u32 x)
-{
-        __asm__("shd %0, %0, 8, %0\n\t"         /* shift xabcxabc -> cxab */
-                "dep %0, 15, 8, %0\n\t"         /* deposit cxab -> cbab */
-                "shd %%r0, %0, 8, %0"           /* shift 0000cbab -> 0cba */
-                : "=r" (x)
-                : "0" (x));
-        return x;
-}
-
-static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
-{
-        unsigned int temp;
-        __asm__("shd %0, %0, 16, %1\n\t"        /* shift abcdabcd -> cdab */
-                "dep %1, 15, 8, %1\n\t"         /* deposit cdab -> cbab */
-                "shd %0, %1, 8, %0"             /* shift abcdcbab -> dcba */
-                : "=r" (x), "=&r" (temp)
-                : "0" (x));
-        return x;
-}
-#define __arch_swab32 __arch_swab32
-
-#if BITS_PER_LONG > 32
-/*
-** From "PA-RISC 2.0 Architecture", HP Professional Books.
-** See Appendix I page 8 , "Endian Byte Swapping".
-**
-** Pretty cool algorithm: (* == zero'd bits)
-**      PERMH   01234567 -> 67452301 into %0
-**      HSHL    67452301 -> 7*5*3*1* into %1
-**      HSHR    67452301 -> *6*4*2*0 into %0
-**      OR      %0 | %1  -> 76543210 into %0 (all done!)
-*/
-static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
-{
-        __u64 temp;
-        __asm__("permh,3210 %0, %0\n\t"
-                "hshl %0, 8, %1\n\t"
-                "hshr,u %0, 8, %0\n\t"
-                "or %1, %0, %0"
-                : "=r" (x), "=&r" (temp)
-                : "0" (x));
-        return x;
-}
-#define __arch_swab64 __arch_swab64
-#endif /* BITS_PER_LONG > 32 */
-
-#include <linux/byteorder.h>
+#include <asm/swab.h>
+#include <linux/byteorder/big_endian.h>
 
 #endif /* _PARISC_BYTEORDER_H */