X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-s390%2Firqflags.h;fp=include%2Fasm-s390%2Firqflags.h;h=3f26131120b746c47c81e7d370d76a2422b46153;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=3b566a5b3cc73e19d2487931283da12a0b008d65;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/include/asm-s390/irqflags.h b/include/asm-s390/irqflags.h
index 3b566a5b3..3f2613112 100644
--- a/include/asm-s390/irqflags.h
+++ b/include/asm-s390/irqflags.h
@@ -10,43 +10,93 @@
 
 #ifdef __KERNEL__
 
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+
+/* store then or system mask. */
+#define __raw_local_irq_stosm(__or)					\
+({									\
+	unsigned long __mask;						\
+	asm volatile(							\
+		"	stosm	%0,%1"					\
+		: "=Q" (__mask) : "i" (__or) : "memory");		\
+	__mask;								\
+})
+
+/* store then and system mask. */
+#define __raw_local_irq_stnsm(__and)					\
+({									\
+	unsigned long __mask;						\
+	asm volatile(							\
+		"	stnsm	%0,%1"					\
+		: "=Q" (__mask) : "i" (__and) : "memory");		\
+	__mask;								\
+})
+
+/* set system mask. */
+#define __raw_local_irq_ssm(__mask)					\
+({									\
+	asm volatile("ssm   %0" : : "Q" (__mask) : "memory");		\
+})
+
+#else /* __GNUC__ */
+
+/* store then or system mask. */
+#define __raw_local_irq_stosm(__or)					\
+({									\
+	unsigned long __mask;						\
+	asm volatile(							\
+		"	stosm	0(%1),%2"				\
+		: "=m" (__mask)						\
+		: "a" (&__mask), "i" (__or) : "memory");		\
+	__mask;								\
+})
+
+/* store then and system mask. */
+#define __raw_local_irq_stnsm(__and)					\
+({									\
+	unsigned long __mask;						\
+	asm volatile(							\
+		"	stnsm	0(%1),%2"				\
+		: "=m" (__mask)						\
+		: "a" (&__mask), "i" (__and) : "memory");		\
+	__mask;								\
+})
+
+/* set system mask. */
+#define __raw_local_irq_ssm(__mask)					\
+({									\
+	asm volatile(							\
+		"	ssm	0(%0)"					\
+		: : "a" (&__mask), "m" (__mask) : "memory");		\
+})
+
+#endif /* __GNUC__ */
+
 /* interrupt control.. */
-#define raw_local_irq_enable() ({ \
-	unsigned long  __dummy; \
-	__asm__ __volatile__ ( \
-		"stosm 0(%1),0x03" \
-		: "=m" (__dummy) : "a" (&__dummy) : "memory" ); \
-	})
-
-#define raw_local_irq_disable() ({ \
-	unsigned long __flags; \
-	__asm__ __volatile__ ( \
-		"stnsm 0(%1),0xfc" : "=m" (__flags) : "a" (&__flags) ); \
-	__flags; \
-	})
-
-#define raw_local_save_flags(x)							\
-do {										\
-	typecheck(unsigned long, x);						\
-	__asm__ __volatile__("stosm 0(%1),0" : "=m" (x) : "a" (&x), "m" (x) );	\
-} while (0)
+static inline unsigned long raw_local_irq_enable(void)
+{
+	return __raw_local_irq_stosm(0x03);
+}
 
-#define raw_local_irq_restore(x)						\
-do {										\
-	typecheck(unsigned long, x);						\
-	__asm__ __volatile__("ssm   0(%0)" : : "a" (&x), "m" (x) : "memory");	\
+static inline unsigned long raw_local_irq_disable(void)
+{
+	return __raw_local_irq_stnsm(0xfc);
+}
+
+#define raw_local_save_flags(x)						\
+do {									\
+	typecheck(unsigned long, x);					\
+	(x) = __raw_local_irq_stosm(0x00);				\
 } while (0)
 
-#define raw_irqs_disabled()		\
-({					\
-	unsigned long flags;		\
-	raw_local_save_flags(flags);	\
-	!((flags >> __FLAG_SHIFT) & 3);	\
-})
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+	__raw_local_irq_ssm(flags);
+}
 
 static inline int raw_irqs_disabled_flags(unsigned long flags)
 {
-	return !((flags >> __FLAG_SHIFT) & 3);
+	return !(flags & (3UL << (BITS_PER_LONG - 8)));
 }
 
 /* For spinlocks etc */