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microblaze: Separate library optimized functions

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memcpy/memmove/memset

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek
2010-10-09 13:58:24 +10:00
parent ccea0e6e49
commit 93e2e85139
3 changed files with 48 additions and 17 deletions
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26
arch/microblaze/lib/memset.c
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@@ -31,17 +31,30 @@
#include <linux/string.h>
#ifdef __HAVE_ARCH_MEMSET
#ifndef CONFIG_OPT_LIB_FUNCTION
void *memset(void *v_src, int c, __kernel_size_t n)
{
char *src = v_src;
#ifdef CONFIG_OPT_LIB_FUNCTION
uint32_t *i_src;
uint32_t w32 = 0;
#endif
/* Truncate c to 8 bits */
c = (c & 0xFF);
/* Simple, byte oriented memset or the rest of count. */
while (n--)
*src++ = c;
return v_src;
}
#else /* CONFIG_OPT_LIB_FUNCTION */
void *memset(void *v_src, int c, __kernel_size_t n)
{
char *src = v_src;
uint32_t *i_src;
uint32_t w32 = 0;
/* Truncate c to 8 bits */
c = (c & 0xFF);
#ifdef CONFIG_OPT_LIB_FUNCTION
if (unlikely(c)) {
/* Make a repeating word out of it */
w32 = c;
@@ -72,12 +85,13 @@ void *memset(void *v_src, int c, __kernel_size_t n)
src = (void *)i_src;
}
#endif
/* Simple, byte oriented memset or the rest of count. */
while (n--)
*src++ = c;
return v_src;
}
#endif /* CONFIG_OPT_LIB_FUNCTION */
EXPORT_SYMBOL(memset);
#endif /* __HAVE_ARCH_MEMSET */