ARM: SMP: collect IPI and local timer IRQs for /proc/stat
The IPI and local timer interrupts weren't being properly accounted for in /proc/stat. Collect them from the irq_stat structure, and return their sum. Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -22,6 +22,14 @@ typedef struct {
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#define __inc_irq_stat(cpu, member) __IRQ_STAT(cpu, member)++
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#define __get_irq_stat(cpu, member) __IRQ_STAT(cpu, member)
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#ifdef CONFIG_SMP
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u64 smp_irq_stat_cpu(unsigned int cpu);
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#else
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#define smp_irq_stat_cpu(cpu) 0
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#endif
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#define arch_irq_stat_cpu smp_irq_stat_cpu
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#if NR_IRQS > 512
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#define HARDIRQ_BITS 10
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#elif NR_IRQS > 256
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@ -406,6 +406,21 @@ void show_ipi_list(struct seq_file *p, int prec)
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}
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}
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u64 smp_irq_stat_cpu(unsigned int cpu)
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{
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u64 sum = 0;
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int i;
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for (i = 0; i < NR_IPI; i++)
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sum += __get_irq_stat(cpu, ipi_irqs[i]);
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#ifdef CONFIG_LOCAL_TIMERS
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sum += __get_irq_stat(cpu, local_timer_irqs);
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#endif
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return sum;
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}
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/*
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* Timer (local or broadcast) support
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*/
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