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-rw-r--r--arch/microblaze/lib/Makefile3
-rw-r--r--arch/microblaze/lib/fastcopy.S6
-rw-r--r--arch/microblaze/lib/memcpy.c2
-rw-r--r--arch/microblaze/lib/memset.c15
-rw-r--r--arch/microblaze/lib/uaccess.c48
-rw-r--r--arch/microblaze/lib/uaccess_old.S45
6 files changed, 46 insertions, 73 deletions
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
index b579db068c06..4dfe47d3cd91 100644
--- a/arch/microblaze/lib/Makefile
+++ b/arch/microblaze/lib/Makefile
@@ -10,5 +10,4 @@ else
lib-y += memcpy.o memmove.o
endif
-lib-$(CONFIG_NO_MMU) += uaccess.o
-lib-$(CONFIG_MMU) += uaccess_old.o
+lib-y += uaccess_old.o
diff --git a/arch/microblaze/lib/fastcopy.S b/arch/microblaze/lib/fastcopy.S
index 02e3ab4eddf3..fdc48bb065d8 100644
--- a/arch/microblaze/lib/fastcopy.S
+++ b/arch/microblaze/lib/fastcopy.S
@@ -30,8 +30,9 @@
*/
#include <linux/linkage.h>
-
+ .text
.globl memcpy
+ .type memcpy, @function
.ent memcpy
memcpy:
@@ -345,9 +346,11 @@ a_done:
rtsd r15, 8
nop
+.size memcpy, . - memcpy
.end memcpy
/*----------------------------------------------------------------------------*/
.globl memmove
+ .type memmove, @function
.ent memmove
memmove:
@@ -659,4 +662,5 @@ d_done:
rtsd r15, 8
nop
+.size memmove, . - memmove
.end memmove
diff --git a/arch/microblaze/lib/memcpy.c b/arch/microblaze/lib/memcpy.c
index cc2108b6b260..014bac92bdff 100644
--- a/arch/microblaze/lib/memcpy.c
+++ b/arch/microblaze/lib/memcpy.c
@@ -53,7 +53,7 @@ void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
const uint32_t *i_src;
uint32_t *i_dst;
- if (c >= 4) {
+ if (likely(c >= 4)) {
unsigned value, buf_hold;
/* Align the dstination to a word boundry. */
diff --git a/arch/microblaze/lib/memset.c b/arch/microblaze/lib/memset.c
index 4df851d41a29..ecfb663e1fc1 100644
--- a/arch/microblaze/lib/memset.c
+++ b/arch/microblaze/lib/memset.c
@@ -33,22 +33,23 @@
#ifdef __HAVE_ARCH_MEMSET
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;
+ uint32_t w32 = 0;
#endif
/* Truncate c to 8 bits */
c = (c & 0xFF);
#ifdef CONFIG_OPT_LIB_FUNCTION
- /* Make a repeating word out of it */
- w32 = c;
- w32 |= w32 << 8;
- w32 |= w32 << 16;
+ if (unlikely(c)) {
+ /* Make a repeating word out of it */
+ w32 = c;
+ w32 |= w32 << 8;
+ w32 |= w32 << 16;
+ }
- if (n >= 4) {
+ if (likely(n >= 4)) {
/* Align the destination to a word boundary */
/* This is done in an endian independant manner */
switch ((unsigned) src & 3) {
diff --git a/arch/microblaze/lib/uaccess.c b/arch/microblaze/lib/uaccess.c
deleted file mode 100644
index a853fe089c44..000000000000
--- a/arch/microblaze/lib/uaccess.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) 2006 Atmark Techno, Inc.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/string.h>
-#include <asm/uaccess.h>
-
-#include <asm/bug.h>
-
-long strnlen_user(const char __user *src, long count)
-{
- return strlen(src) + 1;
-}
-
-#define __do_strncpy_from_user(dst, src, count, res) \
- do { \
- char *tmp; \
- strncpy(dst, src, count); \
- for (tmp = dst; *tmp && count > 0; tmp++, count--) \
- ; \
- res = (tmp - dst); \
- } while (0)
-
-long __strncpy_from_user(char *dst, const char __user *src, long count)
-{
- long res;
- __do_strncpy_from_user(dst, src, count, res);
- return res;
-}
-
-long strncpy_from_user(char *dst, const char __user *src, long count)
-{
- long res = -EFAULT;
- if (access_ok(VERIFY_READ, src, 1))
- __do_strncpy_from_user(dst, src, count, res);
- return res;
-}
-
-unsigned long __copy_tofrom_user(void __user *to,
- const void __user *from, unsigned long size)
-{
- memcpy(to, from, size);
- return 0;
-}
diff --git a/arch/microblaze/lib/uaccess_old.S b/arch/microblaze/lib/uaccess_old.S
index 67f991c14b8a..5810cec54a7a 100644
--- a/arch/microblaze/lib/uaccess_old.S
+++ b/arch/microblaze/lib/uaccess_old.S
@@ -22,6 +22,7 @@
.text
.globl __strncpy_user;
+.type __strncpy_user, @function
.align 4;
__strncpy_user:
@@ -50,7 +51,7 @@ __strncpy_user:
3:
rtsd r15,8
nop
-
+ .size __strncpy_user, . - __strncpy_user
.section .fixup, "ax"
.align 2
@@ -72,6 +73,7 @@ __strncpy_user:
.text
.globl __strnlen_user;
+.type __strnlen_user, @function
.align 4;
__strnlen_user:
addik r3,r6,0
@@ -90,7 +92,7 @@ __strnlen_user:
3:
rtsd r15,8
nop
-
+ .size __strnlen_user, . - __strnlen_user
.section .fixup,"ax"
4:
@@ -108,6 +110,7 @@ __strnlen_user:
*/
.text
.globl __copy_tofrom_user;
+.type __copy_tofrom_user, @function
.align 4;
__copy_tofrom_user:
/*
@@ -116,20 +119,34 @@ __copy_tofrom_user:
* r7, r3 - count
* r4 - tempval
*/
- addik r3,r7,0
- beqi r3,3f
-1:
- lbu r4,r6,r0
- addik r6,r6,1
-2:
- sb r4,r5,r0
- addik r3,r3,-1
- bneid r3,1b
- addik r5,r5,1 /* delay slot */
+ beqid r7, 3f /* zero size is not likely */
+ andi r3, r7, 0x3 /* filter add count */
+ bneid r3, 4f /* if is odd value then byte copying */
+ or r3, r5, r6 /* find if is any to/from unaligned */
+ andi r3, r3, 0x3 /* mask unaligned */
+ bneid r3, 1f /* it is unaligned -> then jump */
+ or r3, r0, r0
+
+/* at least one 4 byte copy */
+5: lw r4, r6, r3
+6: sw r4, r5, r3
+ addik r7, r7, -4
+ bneid r7, 5b
+ addik r3, r3, 4
+ addik r3, r7, 0
+ rtsd r15, 8
+ nop
+4: or r3, r0, r0
+1: lbu r4,r6,r3
+2: sb r4,r5,r3
+ addik r7,r7,-1
+ bneid r7,1b
+ addik r3,r3,1 /* delay slot */
3:
+ addik r3,r7,0
rtsd r15,8
nop
-
+ .size __copy_tofrom_user, . - __copy_tofrom_user
.section __ex_table,"a"
- .word 1b,3b,2b,3b
+ .word 1b,3b,2b,3b,5b,3b,6b,3b