Commit 46c48f22 authored by Russell King's avatar Russell King
Browse files

ARM: SMP: provide accessors for irq_stat data 



Provide __inc_irq_stat() and __get_irq_stat() to increment and
read the irq stat counters.

Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent ec405ea9

arch/arm/include/asm/hardirq.h

+3 −0
Original line number Diff line number Diff line
@@ -14,6 +14,9 @@ typedef struct { 


#include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */



#define __inc_irq_stat(cpu, member)	__IRQ_STAT(cpu, member)++

#define __get_irq_stat(cpu, member)	__IRQ_STAT(cpu, member)



#if NR_IRQS > 512

#define HARDIRQ_BITS	10

#elif NR_IRQS > 256

arch/arm/kernel/smp.c

+2 −2
Original line number Diff line number Diff line
@@ -423,7 +423,7 @@ asmlinkage void __exception do_local_timer(struct pt_regs *regs) 
	int cpu = smp_processor_id();



	if (local_timer_ack()) {

		irq_stat[cpu].local_timer_irqs++;

		__inc_irq_stat(cpu, local_timer_irqs);

		ipi_timer();

	}
@@ -437,7 +437,7 @@ void show_local_irqs(struct seq_file *p) 
	seq_printf(p, "LOC: ");



	for_each_present_cpu(cpu)

		seq_printf(p, "%10u ", irq_stat[cpu].local_timer_irqs);

		seq_printf(p, "%10u ", __get_irq_stat(cpu, local_timer_irqs));



	seq_putc(p, '\n');

}