X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-sparc64%2Fuaccess.h;fp=include%2Fasm-sparc64%2Fuaccess.h;h=c91d1e38eac6490c4d63453ca98a69c5b7c7fd26;hb=64ba3f394c830ec48a1c31b53dcae312c56f1604;hp=afe236ba555b97527f197079ec213e0c38ee6307;hpb=be1e6109ac94a859551f8e1774eb9a8469fe055c;p=linux-2.6.git

diff --git a/include/asm-sparc64/uaccess.h b/include/asm-sparc64/uaccess.h
index afe236ba5..c91d1e38e 100644
--- a/include/asm-sparc64/uaccess.h
+++ b/include/asm-sparc64/uaccess.h
@@ -114,6 +114,16 @@ case 8: __put_user_asm(data,x,addr,__pu_ret); break; \
 default: __pu_ret = __put_user_bad(); break; \
 } __pu_ret; })
 
+#define __put_user_nocheck_ret(data,addr,size,retval) ({ \
+register int __foo __asm__ ("l1"); \
+switch (size) { \
+case 1: __put_user_asm_ret(data,b,addr,retval,__foo); break; \
+case 2: __put_user_asm_ret(data,h,addr,retval,__foo); break; \
+case 4: __put_user_asm_ret(data,w,addr,retval,__foo); break; \
+case 8: __put_user_asm_ret(data,x,addr,retval,__foo); break; \
+default: if (__put_user_bad()) return retval; break; \
+} })
+
 #define __put_user_asm(x,size,addr,ret)					\
 __asm__ __volatile__(							\
 	"/* Put user asm, inline. */\n"					\
@@ -133,6 +143,33 @@ __asm__ __volatile__(							\
        : "=r" (ret) : "r" (x), "r" (__m(addr)),				\
 	 "i" (-EFAULT))
 
+#define __put_user_asm_ret(x,size,addr,ret,foo)				\
+if (__builtin_constant_p(ret) && ret == -EFAULT)			\
+__asm__ __volatile__(							\
+	"/* Put user asm ret, inline. */\n"				\
+"1:\t"	"st"#size "a %1, [%2] %%asi\n\n\t"				\
+	".section __ex_table,\"a\"\n\t"					\
+	".align	4\n\t"							\
+	".word	1b, __ret_efault\n\n\t"					\
+	".previous\n\n\t"						\
+       : "=r" (foo) : "r" (x), "r" (__m(addr)));			\
+else									\
+__asm__ __volatile__(							\
+	"/* Put user asm ret, inline. */\n"				\
+"1:\t"	"st"#size "a %1, [%2] %%asi\n\n\t"				\
+	".section .fixup,#alloc,#execinstr\n\t"				\
+	".align	4\n"							\
+"3:\n\t"								\
+	"ret\n\t"							\
+	" restore %%g0, %3, %%o0\n\n\t"					\
+	".previous\n\t"							\
+	".section __ex_table,\"a\"\n\t"					\
+	".align	4\n\t"							\
+	".word	1b, 3b\n\n\t"						\
+	".previous\n\n\t"						\
+       : "=r" (foo) : "r" (x), "r" (__m(addr)),				\
+         "i" (ret))
+
 extern int __put_user_bad(void);
 
 #define __get_user_nocheck(data,addr,size,type) ({ \
@@ -252,7 +289,14 @@ copy_in_user(void __user *to, void __user *from, unsigned long size)
 }
 #define __copy_in_user copy_in_user
 
-extern unsigned long __must_check __clear_user(void __user *, unsigned long);
+extern unsigned long __must_check __bzero_noasi(void __user *, unsigned long);
+
+static inline unsigned long __must_check
+__clear_user(void __user *addr, unsigned long size)
+{
+	
+	return __bzero_noasi(addr, size);
+}
 
 #define clear_user __clear_user