Skip to content

Commit

Permalink
m68k: introduce asm/swab.h
Browse files Browse the repository at this point in the history
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  • Loading branch information
Harvey Harrison authored and Linus Torvalds committed Jan 7, 2009
1 parent 5d30a68 commit c6f09f0
Show file tree
Hide file tree
Showing 3 changed files with 19 additions and 14 deletions.
1 change: 1 addition & 0 deletions include/asm-m68k/Kbuild
Original file line number Diff line number Diff line change
@@ -1,2 +1,3 @@
include include/asm-generic/Kbuild.asm
header-y += cachectl.h
unifdef-y += swab.h
16 changes: 2 additions & 14 deletions include/asm-m68k/byteorder.h
Original file line number Diff line number Diff line change
@@ -1,19 +1,7 @@
#ifndef _M68K_BYTEORDER_H
#define _M68K_BYTEORDER_H

#include <asm/types.h>
#include <linux/compiler.h>

#define __BIG_ENDIAN
#define __SWAB_64_THRU_32__

static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
{
__asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
return val;
}
#define __arch_swab32 __arch_swab32

#include <linux/byteorder.h>
#include <asm/swab.h>
#include <linux/byteorder/big_endian.h>

#endif /* _M68K_BYTEORDER_H */
16 changes: 16 additions & 0 deletions include/asm-m68k/swab.h
Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
#ifndef _M68K_SWAB_H
#define _M68K_SWAB_H

#include <asm/types.h>
#include <linux/compiler.h>

#define __SWAB_64_THRU_32__

static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
{
__asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
return val;
}
#define __arch_swab32 __arch_swab32

#endif /* _M68K_SWAB_H */

0 comments on commit c6f09f0

Please sign in to comment.