From cab8c6f3053c1b147bba825844c8e208f8b3b9f4 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 15 Nov 2010 14:20:41 +0000 Subject: [PATCH] ARM: SMP: move ipi_count into irq_stat structure Move the ipi_count into irq_stat, which allows the ipi_data structure to be entirely removed. Reviewed-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/include/asm/hardirq.h | 3 +++ arch/arm/kernel/smp.c | 14 ++------------ 2 files changed, 5 insertions(+), 12 deletions(-) diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h index 923eaa1ba83b..824b08aa3f7a 100644 --- a/arch/arm/include/asm/hardirq.h +++ b/arch/arm/include/asm/hardirq.h @@ -10,6 +10,9 @@ typedef struct { #ifdef CONFIG_LOCAL_TIMERS unsigned int local_timer_irqs; #endif +#ifdef CONFIG_SMP + unsigned int ipi_irqs; +#endif } ____cacheline_aligned irq_cpustat_t; #include /* Standard mappings for irq_cpustat_t above */ diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 24131264ec2c..65b5ba867805 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -46,15 +46,6 @@ */ struct secondary_data secondary_data; -/* - * structures for inter-processor calls - */ -struct ipi_data { - unsigned long ipi_count; -}; - -static DEFINE_PER_CPU(struct ipi_data, ipi_data); - enum ipi_msg_type { IPI_TIMER = 2, IPI_RESCHEDULE, @@ -398,7 +389,7 @@ void show_ipi_list(struct seq_file *p) seq_puts(p, "IPI:"); for_each_present_cpu(cpu) - seq_printf(p, " %10lu", per_cpu(ipi_data, cpu).ipi_count); + seq_printf(p, " %10u", __get_irq_stat(cpu, ipi_irqs)); seq_putc(p, '\n'); } @@ -513,10 +504,9 @@ static void ipi_cpu_stop(unsigned int cpu) asmlinkage void __exception do_IPI(int ipinr, struct pt_regs *regs) { unsigned int cpu = smp_processor_id(); - struct ipi_data *ipi = &per_cpu(ipi_data, cpu); struct pt_regs *old_regs = set_irq_regs(regs); - ipi->ipi_count++; + __inc_irq_stat(cpu, ipi_irqs); switch (ipinr) { case IPI_TIMER: -- GitLab