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Diffstat (limited to 'arch/powerpc/include/asm/hw_irq.h')
-rw-r--r--arch/powerpc/include/asm/hw_irq.h113
1 files changed, 65 insertions, 48 deletions
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index bd100fcf40d0..ff08b70b36d4 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -16,42 +16,57 @@ extern void timer_interrupt(struct pt_regs *);
#ifdef CONFIG_PPC64
#include <asm/paca.h>
-static inline unsigned long local_get_flags(void)
+static inline unsigned long arch_local_save_flags(void)
{
unsigned long flags;
- __asm__ __volatile__("lbz %0,%1(13)"
- : "=r" (flags)
- : "i" (offsetof(struct paca_struct, soft_enabled)));
+ asm volatile(
+ "lbz %0,%1(13)"
+ : "=r" (flags)
+ : "i" (offsetof(struct paca_struct, soft_enabled)));
return flags;
}
-static inline unsigned long raw_local_irq_disable(void)
+static inline unsigned long arch_local_irq_disable(void)
{
unsigned long flags, zero;
- __asm__ __volatile__("li %1,0; lbz %0,%2(13); stb %1,%2(13)"
- : "=r" (flags), "=&r" (zero)
- : "i" (offsetof(struct paca_struct, soft_enabled))
- : "memory");
+ asm volatile(
+ "li %1,0; lbz %0,%2(13); stb %1,%2(13)"
+ : "=r" (flags), "=&r" (zero)
+ : "i" (offsetof(struct paca_struct, soft_enabled))
+ : "memory");
return flags;
}
-extern void raw_local_irq_restore(unsigned long);
+extern void arch_local_irq_restore(unsigned long);
extern void iseries_handle_interrupts(void);
-#define raw_local_irq_enable() raw_local_irq_restore(1)
-#define raw_local_save_flags(flags) ((flags) = local_get_flags())
-#define raw_local_irq_save(flags) ((flags) = raw_local_irq_disable())
+static inline void arch_local_irq_enable(void)
+{
+ arch_local_irq_restore(1);
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+ return arch_local_irq_disable();
+}
+
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+ return flags == 0;
+}
-#define raw_irqs_disabled() (local_get_flags() == 0)
-#define raw_irqs_disabled_flags(flags) ((flags) == 0)
+static inline bool arch_irqs_disabled(void)
+{
+ return arch_irqs_disabled_flags(arch_local_save_flags());
+}
#ifdef CONFIG_PPC_BOOK3E
-#define __hard_irq_enable() __asm__ __volatile__("wrteei 1": : :"memory");
-#define __hard_irq_disable() __asm__ __volatile__("wrteei 0": : :"memory");
+#define __hard_irq_enable() asm volatile("wrteei 1" : : : "memory");
+#define __hard_irq_disable() asm volatile("wrteei 0" : : : "memory");
#else
#define __hard_irq_enable() __mtmsrd(mfmsr() | MSR_EE, 1)
#define __hard_irq_disable() __mtmsrd(mfmsr() & ~MSR_EE, 1)
@@ -64,64 +79,66 @@ extern void iseries_handle_interrupts(void);
get_paca()->hard_enabled = 0; \
} while(0)
-#else
+#else /* CONFIG_PPC64 */
-#if defined(CONFIG_BOOKE)
#define SET_MSR_EE(x) mtmsr(x)
-#define raw_local_irq_restore(flags) __asm__ __volatile__("wrtee %0" : : "r" (flags) : "memory")
+
+static inline unsigned long arch_local_save_flags(void)
+{
+ return mfmsr();
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+#if defined(CONFIG_BOOKE)
+ asm volatile("wrtee %0" : : "r" (flags) : "memory");
#else
-#define SET_MSR_EE(x) mtmsr(x)
-#define raw_local_irq_restore(flags) mtmsr(flags)
+ mtmsr(flags);
#endif
+}
-static inline void raw_local_irq_disable(void)
+static inline unsigned long arch_local_irq_save(void)
{
+ unsigned long flags = arch_local_save_flags();
#ifdef CONFIG_BOOKE
- __asm__ __volatile__("wrteei 0": : :"memory");
+ asm volatile("wrteei 0" : : : "memory");
#else
- unsigned long msr;
-
- msr = mfmsr();
- SET_MSR_EE(msr & ~MSR_EE);
+ SET_MSR_EE(flags & ~MSR_EE);
#endif
+ return flags;
}
-static inline void raw_local_irq_enable(void)
+static inline void arch_local_irq_disable(void)
{
#ifdef CONFIG_BOOKE
- __asm__ __volatile__("wrteei 1": : :"memory");
+ asm volatile("wrteei 0" : : : "memory");
#else
- unsigned long msr;
-
- msr = mfmsr();
- SET_MSR_EE(msr | MSR_EE);
+ arch_local_irq_save();
#endif
}
-static inline void raw_local_irq_save_ptr(unsigned long *flags)
+static inline void arch_local_irq_enable(void)
{
- unsigned long msr;
- msr = mfmsr();
- *flags = msr;
#ifdef CONFIG_BOOKE
- __asm__ __volatile__("wrteei 0": : :"memory");
+ asm volatile("wrteei 1" : : : "memory");
#else
- SET_MSR_EE(msr & ~MSR_EE);
+ unsigned long msr = mfmsr();
+ SET_MSR_EE(msr | MSR_EE);
#endif
}
-#define raw_local_save_flags(flags) ((flags) = mfmsr())
-#define raw_local_irq_save(flags) raw_local_irq_save_ptr(&flags)
-#define raw_irqs_disabled() ((mfmsr() & MSR_EE) == 0)
-#define raw_irqs_disabled_flags(flags) (((flags) & MSR_EE) == 0)
-
-#define hard_irq_disable() raw_local_irq_disable()
-
-static inline int irqs_disabled_flags(unsigned long flags)
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
{
return (flags & MSR_EE) == 0;
}
+static inline bool arch_irqs_disabled(void)
+{
+ return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+#define hard_irq_disable() arch_local_irq_disable()
+
#endif /* CONFIG_PPC64 */
/*