--- zzzz-none-000/linux-2.6.28.10/arch/mips/oprofile/op_model_mipsxx.c	2009-05-02 18:54:43.000000000 +0000
+++ fusiv-7390-686/linux-2.6.28.10/arch/mips/oprofile/op_model_mipsxx.c	2010-05-06 12:35:22.000000000 +0000
@@ -11,7 +11,13 @@
 #include <linux/interrupt.h>
 #include <linux/smp.h>
 #include <asm/irq_regs.h>
+#if defined(CONFIG_AR9) || defined(CONFIG_VR9)
+#include <irq.h>
+#endif /*--- #if defined(CONFIG_AR9) || defined(CONFIG_VR9) ---*/
+#include <asm/irq.h>
 
+/*------------------------------------------------------------------------------------------*\
+\*------------------------------------------------------------------------------------------*/
 #include "op_impl.h"
 
 #define M_PERFCTL_EXL			(1UL      <<  0)
@@ -374,6 +380,11 @@
 	save_perf_irq = perf_irq;
 	perf_irq = mipsxx_perfcount_handler;
 
+    /*--- enable interrupt ---*/
+#if defined(CONFIG_AR9) || defined(CONFIG_VR9)
+    bsp_enable_irq(MIPS_CPU_CPUCTR_IRQ);
+#endif /*--- #if defined(CONFIG_AR9) || defined(CONFIG_VR9) ---*/
+
 	return 0;
 }
 
@@ -381,6 +392,10 @@
 {
 	int counters = op_model_mipsxx_ops.num_counters;
 
+#if defined(CONFIG_AR9) || defined(CONFIG_VR9)
+    bsp_disable_irq(MIPS_CPU_CPUCTR_IRQ);
+#endif /*--- #if defined(CONFIG_AR9) || defined(CONFIG_VR9) ---*/
+
 	counters = counters_per_cpu_to_total(counters);
 	on_each_cpu(reset_counters, (void *)(long)counters, 1);