parisc: Count IPI function calls

Commit Message

Helge Deller Dec. 30, 2018, 1:01 p.m. UTC

Like other platforms, count the number of IPI function calls and show it
in /proc/interrupts.

Signed-off-by: Helge Deller <[e-mail]>

Patch

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 1a1235a9d533..7f7039516e53 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -22,6 +22,7 @@  typedef struct {
 	unsigned int irq_stack_usage;
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
+	unsigned int irq_call_count;
 #endif
 	unsigned int irq_unaligned_count;
 	unsigned int irq_fpassist_count;
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 0ca254085a66..e24a790815a5 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -179,6 +180,10 @@  int arch_show_interrupts(struct seq_file *p, int prec)
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
 	seq_puts(p, "  Rescheduling interrupts\n");
+	seq_printf(p, "%*s: ", prec, "CAL");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
+	seq_puts(p, "  Function call interrupts\n");
 #endif
 	seq_printf(p, "%*s: ", prec, "UAH");
 	for_each_online_cpu(j)
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 5e26dbede5fc..d9e2d69c9e48 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -155,6 +155,7 @@  ipi_interrupt(int irq, void *dev_id)
 
 			case IPI_CALL_FUNC:
 				smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC\n", this_cpu);
+				inc_irq_stat(irq_call_count);
 				generic_smp_call_function_interrupt();
 				break;