1 files changed, 10 insertions, 1 deletions

diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h
index 91803ba30ff2..97102ebc54b1 100644
--- a/include/asm-mips/irq.h
+++ b/include/asm-mips/irq.h
@@ -24,7 +24,7 @@ static inline int irq_canonicalize(int irq)
 #define irq_canonicalize(irq) (irq)     /* Sane hardware, sane code ... */
 #endif
 
-#ifdef CONFIG_MIPS_MT_SMTC
+#ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
 /*
  * Clear interrupt mask handling "backstop" if irq_hwmask
  * entry so indicates. This implies that the ack() or end()
@@ -72,4 +72,13 @@ extern int allocate_irqno(void);
 extern void alloc_legacy_irqno(void);
 extern void free_irqno(unsigned int irq);
 
+/*
+ * Before R2 the timer and performance counter interrupts were both fixed to
+ * IE7.  Since R2 their number has to be read from the c0_intctl register.
+ */
+#define CP0_LEGACY_COMPARE_IRQ 7
+
+extern int cp0_compare_irq;
+extern int cp0_perfcount_irq;
+
 #endif /* _ASM_IRQ_H */