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authorRoman Zippel <zippel@linux-m68k.org>2005-09-03 15:57:10 -0700
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 00:06:19 -0700
commit072dffda1d35c391fe893ec9b1d098145e668fef (patch)
tree2eee1530619abb7cf751db022216ab483e6fc823 /arch/m68k/lib/memcpy.c
parent2855b97020f6d4a4dfb005fb77c0b79c8cb9d13f (diff)
downloadop-kernel-dev-072dffda1d35c391fe893ec9b1d098145e668fef.zip
op-kernel-dev-072dffda1d35c391fe893ec9b1d098145e668fef.tar.gz
[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.c75
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 73e1818..0000000
--- 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;
-}
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