X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-mips%2Ffutex.h;h=2454c44a8f54c11b99771784eb2f77974a4a3d9c;hb=987b0145d94eecf292d8b301228356f44611ab7c;hp=12d118f1bc9c7768d3a2e14b9ed0458e5569feb6;hpb=f7ed79d23a47594e7834d66a8f14449796d4f3e6;p=linux-2.6.git

diff --git a/include/asm-mips/futex.h b/include/asm-mips/futex.h
index 12d118f1b..2454c44a8 100644
--- a/include/asm-mips/futex.h
+++ b/include/asm-mips/futex.h
@@ -7,7 +7,6 @@
 #include <linux/futex.h>
 #include <asm/errno.h>
 #include <asm/uaccess.h>
-#include <asm/war.h>
 
 #ifdef CONFIG_SMP
 #define __FUTEX_SMP_SYNC "	sync					\n"
@@ -17,58 +16,30 @@
 
 #define __futex_atomic_op(insn, ret, oldval, uaddr, oparg)		\
 {									\
-	if (cpu_has_llsc && R10000_LLSC_WAR) {				\
-		__asm__ __volatile__(					\
-		"	.set	push				\n"	\
-		"	.set	noat				\n"	\
-		"	.set	mips3				\n"	\
-		"1:	ll	%1, (%3)	# __futex_atomic_op	\n" \
-		"	.set	mips0				\n"	\
-		"	" insn	"				\n"	\
-		"	.set	mips3				\n"	\
-		"2:	sc	$1, (%3)			\n"	\
-		"	beqzl	$1, 1b				\n"	\
-		__FUTEX_SMP_SYNC					\
-		"3:						\n"	\
-		"	.set	pop				\n"	\
-		"	.set	mips0				\n"	\
-		"	.section .fixup,\"ax\"			\n"	\
-		"4:	li	%0, %5				\n"	\
-		"	j	2b				\n"	\
-		"	.previous				\n"	\
-		"	.section __ex_table,\"a\"		\n"	\
-		"	"__UA_ADDR "\t1b, 4b			\n"	\
-		"	"__UA_ADDR "\t2b, 4b			\n"	\
-		"	.previous				\n"	\
-		: "=r" (ret), "=r" (oldval)				\
-		: "0" (0), "r" (uaddr), "Jr" (oparg), "i" (-EFAULT));	\
-	} else if (cpu_has_llsc) {					\
-		__asm__ __volatile__(					\
-		"	.set	push				\n"	\
-		"	.set	noat				\n"	\
-		"	.set	mips3				\n"	\
-		"1:	ll	%1, (%3)	# __futex_atomic_op	\n" \
-		"	.set	mips0				\n"	\
-		"	" insn	"				\n"	\
-		"	.set	mips3				\n"	\
-		"2:	sc	$1, (%3)			\n"	\
-		"	beqz	$1, 1b				\n"	\
-		__FUTEX_SMP_SYNC					\
-		"3:						\n"	\
-		"	.set	pop				\n"	\
-		"	.set	mips0				\n"	\
-		"	.section .fixup,\"ax\"			\n"	\
-		"4:	li	%0, %5				\n"	\
-		"	j	2b				\n"	\
-		"	.previous				\n"	\
-		"	.section __ex_table,\"a\"		\n"	\
-		"	"__UA_ADDR "\t1b, 4b			\n"	\
-		"	"__UA_ADDR "\t2b, 4b			\n"	\
-		"	.previous				\n"	\
-		: "=r" (ret), "=r" (oldval)				\
-		: "0" (0), "r" (uaddr), "Jr" (oparg), "i" (-EFAULT));	\
-	} else								\
-		ret = -ENOSYS;						\
+	__asm__ __volatile__(						\
+	"	.set	push					\n"	\
+	"	.set	noat					\n"	\
+	"	.set	mips3					\n"	\
+	"1:	ll	%1, (%3)	# __futex_atomic_op1	\n"	\
+	"	.set	mips0					\n"	\
+	"	" insn	"					\n"	\
+	"	.set	mips3					\n"	\
+	"2:	sc	$1, (%3)				\n"	\
+	"	beqzl	$1, 1b					\n"	\
+	__FUTEX_SMP_SYNC						\
+	"3:							\n"	\
+	"	.set	pop					\n"	\
+	"	.set	mips0					\n"	\
+	"	.section .fixup,\"ax\"				\n"	\
+	"4:	li	%0, %5					\n"	\
+	"	j	2b					\n"	\
+	"	.previous					\n"	\
+	"	.section __ex_table,\"a\"			\n"	\
+	"	"__UA_ADDR "\t1b, 4b				\n"	\
+	"	"__UA_ADDR "\t2b, 4b				\n"	\
+	"	.previous					\n"	\
+	: "=r" (ret), "=r" (oldval)					\
+	: "0" (0), "r" (uaddr), "Jr" (oparg), "i" (-EFAULT));		\
 }
 
 static inline int
@@ -128,73 +99,5 @@ futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
 	return ret;
 }
 
-static inline int
-futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
-{
-	int retval;
-
-	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
-		return -EFAULT;
-
-	if (cpu_has_llsc && R10000_LLSC_WAR) {
-		__asm__ __volatile__(
-		"# futex_atomic_cmpxchg_inatomic			\n"
-		"	.set	push					\n"
-		"	.set	noat					\n"
-		"	.set	mips3					\n"
-		"1:	ll	%0, %2					\n"
-		"	bne	%0, %z3, 3f				\n"
-		"	.set	mips0					\n"
-		"	move	$1, %z4					\n"
-		"	.set	mips3					\n"
-		"2:	sc	$1, %1					\n"
-		"	beqzl	$1, 1b					\n"
-		__FUTEX_SMP_SYNC
-		"3:							\n"
-		"	.set	pop					\n"
-		"	.section .fixup,\"ax\"				\n"
-		"4:	li	%0, %5					\n"
-		"	j	3b					\n"
-		"	.previous					\n"
-		"	.section __ex_table,\"a\"			\n"
-		"	"__UA_ADDR "\t1b, 4b				\n"
-		"	"__UA_ADDR "\t2b, 4b				\n"
-		"	.previous					\n"
-		: "=&r" (retval), "=R" (*uaddr)
-		: "R" (*uaddr), "Jr" (oldval), "Jr" (newval), "i" (-EFAULT)
-		: "memory");
-	} else if (cpu_has_llsc) {
-		__asm__ __volatile__(
-		"# futex_atomic_cmpxchg_inatomic			\n"
-		"	.set	push					\n"
-		"	.set	noat					\n"
-		"	.set	mips3					\n"
-		"1:	ll	%0, %2					\n"
-		"	bne	%0, %z3, 3f				\n"
-		"	.set	mips0					\n"
-		"	move	$1, %z4					\n"
-		"	.set	mips3					\n"
-		"2:	sc	$1, %1					\n"
-		"	beqz	$1, 1b					\n"
-		__FUTEX_SMP_SYNC
-		"3:							\n"
-		"	.set	pop					\n"
-		"	.section .fixup,\"ax\"				\n"
-		"4:	li	%0, %5					\n"
-		"	j	3b					\n"
-		"	.previous					\n"
-		"	.section __ex_table,\"a\"			\n"
-		"	"__UA_ADDR "\t1b, 4b				\n"
-		"	"__UA_ADDR "\t2b, 4b				\n"
-		"	.previous					\n"
-		: "=&r" (retval), "=R" (*uaddr)
-		: "R" (*uaddr), "Jr" (oldval), "Jr" (newval), "i" (-EFAULT)
-		: "memory");
-	} else
-		return -ENOSYS;
-
-	return retval;
-}
-
 #endif
 #endif