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authorNicholas Piggin <npiggin@gmail.com>2018-05-05 03:19:35 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2018-06-03 20:40:29 +1000
commite360cd37f0e9bac7b5f623132549e2d4b6417399 (patch)
treebbaa60cc53c21e1a5b7dd2efe18850e585712ec9 /arch/powerpc/kernel/irq.c
parentpowerpc: move a stray NMI IPI case under NMI_IPI ifdef (diff)
downloadlinux-dev-e360cd37f0e9bac7b5f623132549e2d4b6417399.tar.xz
linux-dev-e360cd37f0e9bac7b5f623132549e2d4b6417399.zip
powerpc/time: account broadcast timer event interrupts separately
These are not local timer interrupts but IPIs. It's good to be able to see how timer offloading is behaving, so split these out into their own category. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/irq.c')
-rw-r--r--arch/powerpc/kernel/irq.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index bbf7ec582d60..0682fef1f385 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -508,6 +508,11 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, "%10u ", per_cpu(irq_stat, j).timer_irqs_event);
seq_printf(p, " Local timer interrupts for timer event device\n");
+ seq_printf(p, "%*s: ", prec, "BCT");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", per_cpu(irq_stat, j).broadcast_irqs_event);
+ seq_printf(p, " Broadcast timer interrupts for timer event device\n");
+
seq_printf(p, "%*s: ", prec, "LOC");
for_each_online_cpu(j)
seq_printf(p, "%10u ", per_cpu(irq_stat, j).timer_irqs_others);
@@ -567,6 +572,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
{
u64 sum = per_cpu(irq_stat, cpu).timer_irqs_event;
+ sum += per_cpu(irq_stat, cpu).broadcast_irqs_event;
sum += per_cpu(irq_stat, cpu).pmu_irqs;
sum += per_cpu(irq_stat, cpu).mce_exceptions;
sum += per_cpu(irq_stat, cpu).spurious_irqs;