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Commit ca41ad43 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

powerpc: Add irq accounting for system reset interrupts 



Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 75eb767e

arch/powerpc/include/asm/hardirq.h

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ typedef struct { 
	unsigned int mce_exceptions;

	unsigned int spurious_irqs;

	unsigned int hmi_exceptions;

	unsigned int sreset_irqs;

#ifdef CONFIG_PPC_DOORBELL

	unsigned int doorbell_irqs;

#endif

arch/powerpc/kernel/irq.c

+6 −0
Original line number Diff line number Diff line
@@ -470,6 +470,11 @@ int arch_show_interrupts(struct seq_file *p, int prec) 
		seq_printf(p, "  Hypervisor Maintenance Interrupts\n");

	}



	seq_printf(p, "%*s: ", prec, "NMI");

	for_each_online_cpu(j)

		seq_printf(p, "%10u ", per_cpu(irq_stat, j).sreset_irqs);

	seq_printf(p, "  System Reset interrupts\n");



#ifdef CONFIG_PPC_DOORBELL

	if (cpu_has_feature(CPU_FTR_DBELL)) {

		seq_printf(p, "%*s: ", prec, "DBL");
@@ -494,6 +499,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu) 
	sum += per_cpu(irq_stat, cpu).spurious_irqs;

	sum += per_cpu(irq_stat, cpu).timer_irqs_others;

	sum += per_cpu(irq_stat, cpu).hmi_exceptions;

	sum += per_cpu(irq_stat, cpu).sreset_irqs;

#ifdef CONFIG_PPC_DOORBELL

	sum += per_cpu(irq_stat, cpu).doorbell_irqs;

#endif

arch/powerpc/kernel/traps.c

+2 −0
Original line number Diff line number Diff line
@@ -288,6 +288,8 @@ void system_reset_exception(struct pt_regs *regs) 
	if (!nested)

		nmi_enter();



	__this_cpu_inc(irq_stat.sreset_irqs);



	/* See if any machine dependent calls */

	if (ppc_md.system_reset_exception) {

		if (ppc_md.system_reset_exception(regs))