--- zzzz-none-000/linux-2.6.28.10/include/linux/irq_cpustat.h	2009-05-02 18:54:43.000000000 +0000
+++ fusiv-7390-686/linux-2.6.28.10/include/linux/irq_cpustat.h	2012-02-14 14:37:49.000000000 +0000
@@ -28,4 +28,69 @@
   /* arch dependent irq_stat fields */
 #define nmi_count(cpu)		__IRQ_STAT((cpu), __nmi_count)	/* i386 */
 
+typedef struct __fusiv_irq_softirq_stats {
+	unsigned long	softirq_cycles;
+	unsigned long	hardirq_cycles;
+	unsigned long	softirq_ticks;
+	unsigned long	nested_interrupts;
+} fusiv_irq_softirq_stats_t;
+
+extern	fusiv_irq_softirq_stats_t	fusiv_irq_softirq_stats[];
+
+#ifdef CONFIG_FUSIV_SOFTIRQ_CPU_UTILIZATION_FIX
+#define GET_CYCLE_COUNTER()   ({unsigned long ticks;  __asm__ volatile ("mfc0 %0,$9\nnop" : "=d"(ticks)); (ticks);})
+#define	__GET_SOFTIRQ_STATS(cpu,member) (fusiv_irq_softirq_stats[cpu].member)
+#define	__INCR_SOFTIRQ_STATS(cpu,member,val) (fusiv_irq_softirq_stats[cpu].member += (val))
+#define	__DECR_SOFTIRQ_STATS(cpu,member,val) (fusiv_irq_softirq_stats[cpu].member -= (val))
+#define	__RESET_SOFTIRQ_STATS(cpu,member) (fusiv_irq_softirq_stats[cpu].member = 0)
+
+#define local_softirq_cycles()	\
+	__GET_SOFTIRQ_STATS(smp_processor_id(), softirq_cycles)
+
+#define local_softirq_ticks()	\
+	__GET_SOFTIRQ_STATS(smp_processor_id(), softirq_ticks)
+
+#define local_hardirq_cycles()	\
+	__GET_SOFTIRQ_STATS(smp_processor_id(), hardirq_cycles)
+
+#define local_nested_interrupts()	\
+	__GET_SOFTIRQ_STATS(smp_processor_id(), nested_interrupts)
+
+#define	local_incr_softirq_cycles(val)	\
+	__INCR_SOFTIRQ_STATS (smp_processor_id(), softirq_cycles, val)
+
+#define	local_decr_softirq_cycles(val)	\
+	__DECR_SOFTIRQ_STATS (smp_processor_id(), softirq_cycles, val)
+
+#define	local_reset_softirq_cycles()	\
+	__RESET_SOFTIRQ_STATS (smp_processor_id(), softirq_cycles)
+
+#define	local_incr_softirq_ticks(val)	\
+	__INCR_SOFTIRQ_STATS (smp_processor_id(), softirq_ticks, val)
+
+#define	local_decr_softirq_ticks(val)	\
+	__DECR_SOFTIRQ_STATS (smp_processor_id(), softirq_ticks, val)
+
+#define	local_reset_softirq_ticks()	\
+	__RESET_SOFTIRQ_STATS (smp_processor_id(), softirq_ticks)
+
+#define	local_incr_hardirq_cycles(val)	\
+	__INCR_SOFTIRQ_STATS (smp_processor_id(), hardirq_cycles, val)
+
+#define	local_decr_hardirq_cycles(val)	\
+	__DECR_SOFTIRQ_STATS (smp_processor_id(), hardirq_cycles, val)
+
+#define	local_reset_hardirq_cycles()	\
+	__RESET_SOFTIRQ_STATS (smp_processor_id(), hardirq_cycles)
+
+#define	local_incr_nested_interrupts(val)	\
+	__INCR_SOFTIRQ_STATS (smp_processor_id(), nested_interrupts, val)
+
+#define	local_decr_nested_interrupts(val)	\
+	__DECR_SOFTIRQ_STATS (smp_processor_id(), nested_interrupts, val)
+
+#define	local_reset_nested_interrupts()	\
+	__RESET_SOFTIRQ_STATS (smp_processor_id(), nested_interrupts)
+#endif
+
 #endif	/* __irq_cpustat_h */