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-rw-r--r--arch/sparc/include/asm/irqflags_64.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/sparc/include/asm/irqflags_64.h b/arch/sparc/include/asm/irqflags_64.h
index 8b49bf920df3..a16e94c4b149 100644
--- a/arch/sparc/include/asm/irqflags_64.h
+++ b/arch/sparc/include/asm/irqflags_64.h
@@ -76,9 +76,19 @@ static inline int raw_irqs_disabled(void)
76 */ 76 */
77static inline unsigned long __raw_local_irq_save(void) 77static inline unsigned long __raw_local_irq_save(void)
78{ 78{
79 unsigned long flags = __raw_local_save_flags(); 79 unsigned long flags, tmp;
80 80
81 raw_local_irq_disable(); 81 /* Disable interrupts to PIL_NORMAL_MAX unless we already
82 * are using PIL_NMI, in which case PIL_NMI is retained.
83 */
84 __asm__ __volatile__(
85 "rdpr %%pil, %0\n\t"
86 "or %0, %2, %1\n\t"
87 "wrpr %1, 0x0, %%pil"
88 : "=r" (flags), "=r" (tmp)
89 : "i" (PIL_NORMAL_MAX)
90 : "memory"
91 );
82 92
83 return flags; 93 return flags;
84} 94}