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authorGreg Ungerer <gerg@uclinux.org>2011-02-03 21:58:39 +1000
committerGreg Ungerer <gerg@uclinux.org>2011-02-16 09:43:16 +1000
commit982cd252ca0b63c11fe398c09c6f2b41217c78c0 (patch)
treefac6b90f443fdb1654c58ae86b1921f3e2a33aa3 /arch/m68k
parentf9d693d237a173915fcfbd86b28753f93b7d142f (diff)
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m68knommu: add optimize memmove() function
Add an m68k/coldfire optimized memmove() function for the m68knommu arch. This is the same function as used by m68k. Simple speed tests show this is faster once buffers are larger than 4 bytes, and significantly faster on much larger buffers (4 times faster above about 100 bytes). This also goes part of the way to fixing a regression caused by commit ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is the 68x328 and 68360 families). They currently have no memmove() fucntion defined, since there was none in the m68knommu/lib functions. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/include/asm/string.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h
index ffc3c3f..3219845 100644
--- a/arch/m68k/include/asm/string.h
+++ b/arch/m68k/include/asm/string.h
@@ -99,10 +99,10 @@ static inline int strcmp(const char *cs, const char *ct)
: "+a" (cs), "+a" (ct), "=d" (res));
return res;
}
+#endif /* CONFIG_COLDFIRE */
#define __HAVE_ARCH_MEMMOVE
extern void *memmove(void *, const void *, __kernel_size_t);
-#endif /* CONFIG_COLDFIRE */
#define memcmp(d, s, n) __builtin_memcmp(d, s, n)