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m68k: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1,2 +1,3 @@
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include include/asm-generic/Kbuild.asm
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header-y += cachectl.h
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unifdef-y += swab.h
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@ -1,19 +1,7 @@
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#ifndef _M68K_BYTEORDER_H
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#define _M68K_BYTEORDER_H
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#include <asm/types.h>
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#include <linux/compiler.h>
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#define __BIG_ENDIAN
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#define __SWAB_64_THRU_32__
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static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
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{
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__asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
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return val;
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}
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#define __arch_swab32 __arch_swab32
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#include <linux/byteorder.h>
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#include <asm/swab.h>
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#include <linux/byteorder/big_endian.h>
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#endif /* _M68K_BYTEORDER_H */
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include/asm-m68k/swab.h
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16
include/asm-m68k/swab.h
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@ -0,0 +1,16 @@
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#ifndef _M68K_SWAB_H
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#define _M68K_SWAB_H
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#include <asm/types.h>
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#include <linux/compiler.h>
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#define __SWAB_64_THRU_32__
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static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
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{
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__asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
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return val;
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}
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#define __arch_swab32 __arch_swab32
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#endif /* _M68K_SWAB_H */
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