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author | Roman Zippel <zippel@linux-m68k.org> | 2005-09-04 02:57:10 +0400 |
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committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 11:06:19 +0400 |
commit | 072dffda1d35c391fe893ec9b1d098145e668fef (patch) | |
tree | 2eee1530619abb7cf751db022216ab483e6fc823 /arch/m68k/lib/memcpy.c | |
parent | 2855b97020f6d4a4dfb005fb77c0b79c8cb9d13f (diff) | |
download | linux-072dffda1d35c391fe893ec9b1d098145e668fef.tar.xz |
[PATCH] m68k: cleanup inline mem functions
Use the builtin functions for memset/memclr/memcpy, special optimizations for
page operations have dedicated functions now. Uninline memmove/memchr and
move all functions into a single file and clean it up a little.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/m68k/lib/memcpy.c')
-rw-r--r-- | arch/m68k/lib/memcpy.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/arch/m68k/lib/memcpy.c b/arch/m68k/lib/memcpy.c deleted file mode 100644 index 73e181823d9b..000000000000 --- a/arch/m68k/lib/memcpy.c +++ /dev/null @@ -1,75 +0,0 @@ -#include <linux/types.h> - -void * memcpy(void * to, const void * from, size_t n) -{ - void *xto = to; - size_t temp, temp1; - - if (!n) - return xto; - if ((long) to & 1) - { - char *cto = to; - const char *cfrom = from; - *cto++ = *cfrom++; - to = cto; - from = cfrom; - n--; - } - if (n > 2 && (long) to & 2) - { - short *sto = to; - const short *sfrom = from; - *sto++ = *sfrom++; - to = sto; - from = sfrom; - n -= 2; - } - temp = n >> 2; - if (temp) - { - long *lto = to; - const long *lfrom = from; - - __asm__ __volatile__("movel %2,%3\n\t" - "andw #7,%3\n\t" - "lsrl #3,%2\n\t" - "negw %3\n\t" - "jmp %%pc@(1f,%3:w:2)\n\t" - "4:\t" - "movel %0@+,%1@+\n\t" - "movel %0@+,%1@+\n\t" - "movel %0@+,%1@+\n\t" - "movel %0@+,%1@+\n\t" - "movel %0@+,%1@+\n\t" - "movel %0@+,%1@+\n\t" - "movel %0@+,%1@+\n\t" - "movel %0@+,%1@+\n\t" - "1:\t" - "dbra %2,4b\n\t" - "clrw %2\n\t" - "subql #1,%2\n\t" - "jpl 4b\n\t" - : "=a" (lfrom), "=a" (lto), "=d" (temp), - "=&d" (temp1) - : "0" (lfrom), "1" (lto), "2" (temp) - ); - to = lto; - from = lfrom; - } - if (n & 2) - { - short *sto = to; - const short *sfrom = from; - *sto++ = *sfrom++; - to = sto; - from = sfrom; - } - if (n & 1) - { - char *cto = to; - const char *cfrom = from; - *cto = *cfrom; - } - return xto; -} |