1 --- a/arch/mips/kernel/traps.c
2 +++ b/arch/mips/kernel/traps.c
5 #include <asm/stacktrace.h>
9 extern void check_wait(void);
10 extern asmlinkage void r4k_wait(void);
11 @@ -1552,6 +1553,8 @@ void __cpuinit per_cpu_trap_init(void)
12 if (cpu_has_mips_r2) {
13 cp0_compare_irq_shift = CAUSEB_TI - CAUSEB_IP;
14 cp0_compare_irq = (read_c0_intctl() >> INTCTLB_IPTI) & 7;
15 + if (get_c0_compare_irq)
16 + cp0_compare_irq = get_c0_compare_irq();
17 cp0_perfcount_irq = (read_c0_intctl() >> INTCTLB_IPPCI) & 7;
18 if (cp0_perfcount_irq == cp0_compare_irq)
19 cp0_perfcount_irq = -1;
20 --- a/arch/mips/include/asm/time.h
21 +++ b/arch/mips/include/asm/time.h
22 @@ -52,6 +52,7 @@ extern int (*perf_irq)(void);
24 #ifdef CONFIG_CEVT_R4K_LIB
25 extern unsigned int __weak get_c0_compare_int(void);
26 +extern unsigned int __weak get_c0_compare_irq(void);
27 extern int r4k_clockevent_init(void);