From mboxrd@z Thu Jan 1 00:00:00 1970 From: mark.rutland@arm.com (Mark Rutland) Date: Mon, 14 Jan 2013 17:05:24 +0000 Subject: [PATCHv3 4/4] arm: Add generic timer broadcast support In-Reply-To: <1358183124-28461-1-git-send-email-mark.rutland@arm.com> References: <1358183124-28461-1-git-send-email-mark.rutland@arm.com> Message-ID: <1358183124-28461-5-git-send-email-mark.rutland@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Implement timer_broadcast for the arm architecture, allowing for the use of clock_event_device_drivers decoupled from the timer tick broadcast mechanism. Signed-off-by: Mark Rutland Reviewed-by: Santosh Shilimkar Tested-by: Santosh Shilimkar Reviewed-by: Stephen Boyd --- arch/arm/Kconfig | 1 + arch/arm/kernel/smp.c | 3 +-- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 67874b8..65ae737 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -4,6 +4,7 @@ config ARM select ARCH_BINFMT_ELF_RANDOMIZE_PIE select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select ARCH_HAVE_CUSTOM_GPIO_H + select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_EXTABLE_SORT if MMU select CPU_PM if (SUSPEND || CPU_IDLE) diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 9308519..b7e3b50 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -476,7 +476,7 @@ u64 smp_irq_stat_cpu(unsigned int cpu) static DEFINE_PER_CPU(struct clock_event_device, percpu_clockevent); #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST -static void smp_timer_broadcast(const struct cpumask *mask) +void tick_broadcast(const struct cpumask *mask) { smp_cross_call(mask, IPI_TIMER); } @@ -524,7 +524,6 @@ static void __cpuinit percpu_timer_setup(void) struct clock_event_device *evt = &per_cpu(percpu_clockevent, cpu); evt->cpumask = cpumask_of(cpu); - evt->broadcast = smp_timer_broadcast; if (!lt_ops || lt_ops->setup(evt)) broadcast_timer_setup(evt); -- 1.7.0.4