diff options
author | David Woodhouse <David.Woodhouse@intel.com> | 2008-10-21 19:42:20 +0100 |
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committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-10-21 19:42:20 +0100 |
commit | b876d08f816527af257e13d89fb0d3b4b849223c (patch) | |
tree | 40569f568230f918ca55f04b355e251747f913ed /include/asm-parisc/byteorder.h | |
parent | b364776ad1208a71f0c53578c84619a395412a8d (diff) | |
parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/pci/dmar.c
Diffstat (limited to 'include/asm-parisc/byteorder.h')
-rw-r--r-- | include/asm-parisc/byteorder.h | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/include/asm-parisc/byteorder.h b/include/asm-parisc/byteorder.h deleted file mode 100644 index db148313de5..00000000000 --- a/include/asm-parisc/byteorder.h +++ /dev/null @@ -1,82 +0,0 @@ -#ifndef _PARISC_BYTEORDER_H -#define _PARISC_BYTEORDER_H - -#include <asm/types.h> -#include <linux/compiler.h> - -#ifdef __GNUC__ - -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; -} - -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; -} - - -#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(x) ___arch__swab64(x) -#define __BYTEORDER_HAS_U64__ -#elif !defined(__STRICT_ANSI__) -static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) -{ - __u32 t1 = ___arch__swab32((__u32) x); - __u32 t2 = ___arch__swab32((__u32) (x >> 32)); - return (((__u64) t1 << 32) | t2); -} -#define __arch__swab64(x) ___arch__swab64(x) -#define __BYTEORDER_HAS_U64__ -#endif - -#define __arch__swab16(x) ___arch__swab16(x) -#define __arch__swab24(x) ___arch__swab24(x) -#define __arch__swab32(x) ___arch__swab32(x) - -#endif /* __GNUC__ */ - -#include <linux/byteorder/big_endian.h> - -#endif /* _PARISC_BYTEORDER_H */ |