arm: Use generic timer broadcast receiver (e2c50119) · Commits · 戴 / test

Currently, the ARM backend must maintain a redundant list of timers for the purpose of centralising timer broadcast functionality. This prevents sharing timer drivers across architectures. This patch moves the pain of dealing with timer broadcasts to the core clockevents tick broadcast code, which already maintains its own list of timers. Signed-off-by:

Mark Rutland <mark.rutland@arm.com> Reviewed-by:

Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by:

Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by:

Stephen Boyd <sboyd@codeaurora.org>

arch/arm/kernel/smp.c

+3 −7

Original line number	Diff line number	Diff line
		@@ -475,12 +475,6 @@ u64 smp_irq_stat_cpu(unsigned int cpu)
		*/
		static DEFINE_PER_CPU(struct clock_event_device, percpu_clockevent);

		static void ipi_timer(void)
		{
		struct clock_event_device *evt = &__get_cpu_var(percpu_clockevent);
		evt->event_handler(evt);
		}

		#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
		static void smp_timer_broadcast(const struct cpumask *mask)
		{
		@@ -596,11 +590,13 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
		case IPI_WAKEUP:
		break;

		#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
		case IPI_TIMER:
		irq_enter();
		ipi_timer();
		tick_receive_broadcast();
		irq_exit();
		break;
		#endif

		case IPI_RESCHEDULE:
		scheduler_ipi();

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