diff options
| author | Marc Zyngier <maz@kernel.org> | 2020-06-23 21:15:00 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-09-17 16:37:28 +0100 |
| commit | 5ebf353af22c89d18964bb3b877a95200dfe07b9 (patch) | |
| tree | 7e83c94f710de0c999f0f99feafd90ff144feb2f /arch/arm/kernel/smp.c | |
| parent | 8aa837cb7a032884c787b15de81f7d9de8af0869 (diff) | |
| download | linux-5ebf353af22c89d18964bb3b877a95200dfe07b9.tar.bz2 | |
ARM: Remove custom IRQ stat accounting
Let's switch the arm code to the core accounting, which already
does everything we need.
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm/kernel/smp.c')
| -rw-r--r-- | arch/arm/kernel/smp.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index d51e64955a26..00327fa74b01 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -26,6 +26,7 @@ #include <linux/completion.h> #include <linux/cpufreq.h> #include <linux/irq_work.h> +#include <linux/kernel_stat.h> #include <linux/atomic.h> #include <asm/bugs.h> @@ -65,6 +66,7 @@ enum ipi_msg_type { IPI_CPU_STOP, IPI_IRQ_WORK, IPI_COMPLETION, + NR_IPI, /* * CPU_BACKTRACE is special and not included in NR_IPI * or tracable with trace_ipi_* @@ -529,27 +531,16 @@ void show_ipi_list(struct seq_file *p, int prec) unsigned int cpu, i; for (i = 0; i < NR_IPI; i++) { + unsigned int irq = irq_desc_get_irq(ipi_desc[i]); seq_printf(p, "%*s%u: ", prec - 1, "IPI", i); for_each_online_cpu(cpu) - seq_printf(p, "%10u ", - __get_irq_stat(cpu, ipi_irqs[i])); + seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu)); seq_printf(p, " %s\n", ipi_types[i]); } } -u64 smp_irq_stat_cpu(unsigned int cpu) -{ - u64 sum = 0; - int i; - - for (i = 0; i < NR_IPI; i++) - sum += __get_irq_stat(cpu, ipi_irqs[i]); - - return sum; -} - void arch_send_call_function_ipi_mask(const struct cpumask *mask) { smp_cross_call(mask, IPI_CALL_FUNC); @@ -630,10 +621,8 @@ static void do_handle_IPI(int ipinr) { unsigned int cpu = smp_processor_id(); - if ((unsigned)ipinr < NR_IPI) { + if ((unsigned)ipinr < NR_IPI) trace_ipi_entry_rcuidle(ipi_types[ipinr]); - __inc_irq_stat(cpu, ipi_irqs[ipinr]); - } switch (ipinr) { case IPI_WAKEUP: |