Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 501b3265 authored by Feng Wu's avatar Feng Wu Committed by Thomas Gleixner
Browse files

x86/irq: Show statistics information for posted-interrupts 



Show the statistics information for notification event
and wakeup event for posted-interrupt in /proc/interrupts.

[ tglx: Named the short identifiers PIN and PIW to match the long
  	identifiers ]

Signed-off-by: default avatarFeng Wu <feng.wu@intel.com>
Cc: jiang.liu@linux.intel.com
Link: http://lkml.kernel.org/r/1432026437-16560-5-git-send-email-feng.wu@intel.com


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent f6b3c72c

arch/x86/kernel/irq.c

+12 −0
Original line number Diff line number Diff line
@@ -141,6 +141,18 @@ int arch_show_interrupts(struct seq_file *p, int prec) 
	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));

#if defined(CONFIG_X86_IO_APIC)

	seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count));

#endif

#ifdef CONFIG_HAVE_KVM

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

	for_each_online_cpu(j)

		seq_printf(p, "%10u ", irq_stats(j)->kvm_posted_intr_ipis);

	seq_puts(p, "  Posted-interrupt notification event\n");



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

	for_each_online_cpu(j)

		seq_printf(p, "%10u ",

			   irq_stats(j)->kvm_posted_intr_wakeup_ipis);

	seq_puts(p, "  Posted-interrupt wakeup event\n");

#endif

	return 0;

}