-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
yaml --- r: 126882 b: refs/heads/master c: 5d30a68 h: refs/heads/master v: v3
- Loading branch information
Harvey Harrison
authored and
Linus Torvalds
committed
Jan 7, 2009
1 parent
c2bbb7a
commit e50ecce
Showing
4 changed files
with
65 additions
and
61 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,2 +1,2 @@ | ||
--- | ||
refs/heads/master: f4d2b14501bb7f9a3fa75c07ec0940068fadf728 | ||
refs/heads/master: 5d30a683888c60b8f93bef3ddc139d1a91ca58f4 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,65 +1,7 @@ | ||
#ifndef _ASM_X86_BYTEORDER_H | ||
#define _ASM_X86_BYTEORDER_H | ||
|
||
#include <asm/types.h> | ||
#include <linux/compiler.h> | ||
|
||
#define __LITTLE_ENDIAN | ||
|
||
static inline __attribute_const__ __u32 __arch_swab32(__u32 val) | ||
{ | ||
#ifdef __i386__ | ||
# ifdef CONFIG_X86_BSWAP | ||
asm("bswap %0" : "=r" (val) : "0" (val)); | ||
# else | ||
asm("xchgb %b0,%h0\n\t" /* swap lower bytes */ | ||
"rorl $16,%0\n\t" /* swap words */ | ||
"xchgb %b0,%h0" /* swap higher bytes */ | ||
: "=q" (val) | ||
: "0" (val)); | ||
# endif | ||
|
||
#else /* __i386__ */ | ||
asm("bswapl %0" | ||
: "=r" (val) | ||
: "0" (val)); | ||
#endif | ||
return val; | ||
} | ||
#define __arch_swab32 __arch_swab32 | ||
|
||
static inline __attribute_const__ __u64 __arch_swab64(__u64 val) | ||
{ | ||
#ifdef __i386__ | ||
union { | ||
struct { | ||
__u32 a; | ||
__u32 b; | ||
} s; | ||
__u64 u; | ||
} v; | ||
v.u = val; | ||
# ifdef CONFIG_X86_BSWAP | ||
asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1" | ||
: "=r" (v.s.a), "=r" (v.s.b) | ||
: "0" (v.s.a), "1" (v.s.b)); | ||
# else | ||
v.s.a = __arch_swab32(v.s.a); | ||
v.s.b = __arch_swab32(v.s.b); | ||
asm("xchgl %0,%1" | ||
: "=r" (v.s.a), "=r" (v.s.b) | ||
: "0" (v.s.a), "1" (v.s.b)); | ||
# endif | ||
return v.u; | ||
#else /* __i386__ */ | ||
asm("bswapq %0" | ||
: "=r" (val) | ||
: "0" (val)); | ||
return val; | ||
#endif | ||
} | ||
#define __arch_swab64 __arch_swab64 | ||
|
||
#include <linux/byteorder.h> | ||
#include <asm/swab.h> | ||
#include <linux/byteorder/little_endian.h> | ||
|
||
#endif /* _ASM_X86_BYTEORDER_H */ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,61 @@ | ||
#ifndef _ASM_X86_SWAB_H | ||
#define _ASM_X86_SWAB_H | ||
|
||
#include <asm/types.h> | ||
#include <linux/compiler.h> | ||
|
||
static inline __attribute_const__ __u32 __arch_swab32(__u32 val) | ||
{ | ||
#ifdef __i386__ | ||
# ifdef CONFIG_X86_BSWAP | ||
asm("bswap %0" : "=r" (val) : "0" (val)); | ||
# else | ||
asm("xchgb %b0,%h0\n\t" /* swap lower bytes */ | ||
"rorl $16,%0\n\t" /* swap words */ | ||
"xchgb %b0,%h0" /* swap higher bytes */ | ||
: "=q" (val) | ||
: "0" (val)); | ||
# endif | ||
|
||
#else /* __i386__ */ | ||
asm("bswapl %0" | ||
: "=r" (val) | ||
: "0" (val)); | ||
#endif | ||
return val; | ||
} | ||
#define __arch_swab32 __arch_swab32 | ||
|
||
static inline __attribute_const__ __u64 __arch_swab64(__u64 val) | ||
{ | ||
#ifdef __i386__ | ||
union { | ||
struct { | ||
__u32 a; | ||
__u32 b; | ||
} s; | ||
__u64 u; | ||
} v; | ||
v.u = val; | ||
# ifdef CONFIG_X86_BSWAP | ||
asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1" | ||
: "=r" (v.s.a), "=r" (v.s.b) | ||
: "0" (v.s.a), "1" (v.s.b)); | ||
# else | ||
v.s.a = __arch_swab32(v.s.a); | ||
v.s.b = __arch_swab32(v.s.b); | ||
asm("xchgl %0,%1" | ||
: "=r" (v.s.a), "=r" (v.s.b) | ||
: "0" (v.s.a), "1" (v.s.b)); | ||
# endif | ||
return v.u; | ||
#else /* __i386__ */ | ||
asm("bswapq %0" | ||
: "=r" (val) | ||
: "0" (val)); | ||
return val; | ||
#endif | ||
} | ||
#define __arch_swab64 __arch_swab64 | ||
|
||
#endif /* _ASM_X86_SWAB_H */ |