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-rw-r--r--arch/csky/include/asm/uaccess.h49
1 files changed, 26 insertions, 23 deletions
diff --git a/arch/csky/include/asm/uaccess.h b/arch/csky/include/asm/uaccess.h
index eaa1c3403a42..60f8a4112588 100644
--- a/arch/csky/include/asm/uaccess.h
+++ b/arch/csky/include/asm/uaccess.h
@@ -254,7 +254,7 @@ do { \
extern int __get_user_bad(void);
-#define __copy_user(to, from, n) \
+#define ___copy_to_user(to, from, n) \
do { \
int w0, w1, w2, w3; \
asm volatile( \
@@ -289,31 +289,34 @@ do { \
" subi %0, 4 \n" \
" br 3b \n" \
"5: cmpnei %0, 0 \n" /* 1B */ \
- " bf 8f \n" \
+ " bf 13f \n" \
" ldb %3, (%2, 0) \n" \
"6: stb %3, (%1, 0) \n" \
" addi %2, 1 \n" \
" addi %1, 1 \n" \
" subi %0, 1 \n" \
" br 5b \n" \
- "7: br 8f \n" \
+ "7: subi %0, 4 \n" \
+ "8: subi %0, 4 \n" \
+ "12: subi %0, 4 \n" \
+ " br 13f \n" \
".section __ex_table, \"a\" \n" \
".align 2 \n" \
- ".long 2b, 7b \n" \
- ".long 9b, 7b \n" \
- ".long 10b, 7b \n" \
+ ".long 2b, 13f \n" \
+ ".long 4b, 13f \n" \
+ ".long 6b, 13f \n" \
+ ".long 9b, 12b \n" \
+ ".long 10b, 8b \n" \
".long 11b, 7b \n" \
- ".long 4b, 7b \n" \
- ".long 6b, 7b \n" \
".previous \n" \
- "8: \n" \
+ "13: \n" \
: "=r"(n), "=r"(to), "=r"(from), "=r"(w0), \
"=r"(w1), "=r"(w2), "=r"(w3) \
: "0"(n), "1"(to), "2"(from) \
: "memory"); \
} while (0)
-#define __copy_user_zeroing(to, from, n) \
+#define ___copy_from_user(to, from, n) \
do { \
int tmp; \
int nsave; \
@@ -356,22 +359,22 @@ do { \
" addi %1, 1 \n" \
" subi %0, 1 \n" \
" br 5b \n" \
- "8: mov %3, %0 \n" \
- " movi %4, 0 \n" \
- "9: stb %4, (%1, 0) \n" \
- " addi %1, 1 \n" \
- " subi %3, 1 \n" \
- " cmpnei %3, 0 \n" \
- " bt 9b \n" \
- " br 7f \n" \
+ "8: stw %3, (%1, 0) \n" \
+ " subi %0, 4 \n" \
+ " bf 7f \n" \
+ "9: subi %0, 8 \n" \
+ " bf 7f \n" \
+ "13: stw %3, (%1, 8) \n" \
+ " subi %0, 12 \n" \
+ " bf 7f \n" \
".section __ex_table, \"a\" \n" \
".align 2 \n" \
- ".long 2b, 8b \n" \
+ ".long 2b, 7f \n" \
+ ".long 4b, 7f \n" \
+ ".long 6b, 7f \n" \
".long 10b, 8b \n" \
- ".long 11b, 8b \n" \
- ".long 12b, 8b \n" \
- ".long 4b, 8b \n" \
- ".long 6b, 8b \n" \
+ ".long 11b, 9b \n" \
+ ".long 12b,13b \n" \
".previous \n" \
"7: \n" \
: "=r"(n), "=r"(to), "=r"(from), "=r"(nsave), \