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

Commit 93f3b2ee authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
Browse files

s390/irq: count cpu restart events 



Count CPU Restart events and make them visible via /proc/interrupts.
Every CPU hotplug (online) event will increase the per cpu counter.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 420f42ec

arch/s390/include/asm/irq.h

+1 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ enum interruption_class { 
	IRQIO_PCI,

	IRQIO_MSI,

	NMI_NMI,

	CPU_RST,

	NR_ARCH_IRQS

};

arch/s390/kernel/irq.c

+1 −0
Original line number Diff line number Diff line
@@ -82,6 +82,7 @@ static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = { 
	[IRQIO_PCI]  = {.name = "PCI", .desc = "[I/O] PCI Interrupt" },

	[IRQIO_MSI]  = {.name = "MSI", .desc = "[I/O] MSI Interrupt" },

	[NMI_NMI]    = {.name = "NMI", .desc = "[NMI] Machine Check"},

	[CPU_RST]    = {.name = "RST", .desc = "[CPU] CPU Restart"},

};



/*

arch/s390/kernel/smp.c

+1 −0
Original line number Diff line number Diff line
@@ -709,6 +709,7 @@ static void __cpuinit smp_start_secondary(void *cpuvoid) 
	pfault_init();

	notify_cpu_starting(smp_processor_id());

	set_cpu_online(smp_processor_id(), true);

	inc_irq_stat(CPU_RST);

	local_irq_enable();

	/* cpu_idle will call schedule for us */

	cpu_idle();