diff options
Diffstat (limited to 'arch/arm/common/gic.c')
| -rw-r--r-- | arch/arm/common/gic.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index 36ae03a3f5d1..788658cca960 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -617,6 +617,27 @@ static void __init gic_pm_init(struct gic_chip_data *gic) } #endif +#ifdef CONFIG_SMP +void gic_raise_softirq(const struct cpumask *mask, unsigned int irq) +{ + int cpu; + unsigned long map = 0; + + /* Convert our logical CPU mask into a physical one. */ + for_each_cpu(cpu, mask) + map |= 1 << cpu_logical_map(cpu); + + /* + * Ensure that stores to Normal memory are visible to the + * other CPUs before issuing the IPI. + */ + dsb(); + + /* this always happens on GIC0 */ + writel_relaxed(map << 16 | irq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT); +} +#endif + static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw) { @@ -743,6 +764,9 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start, if (WARN_ON(!gic->domain)) return; +#ifdef CONFIG_SMP + set_smp_cross_call(gic_raise_softirq); +#endif gic_chip.flags |= gic_arch_extn.flags; gic_dist_init(gic); gic_cpu_init(gic); @@ -756,27 +780,6 @@ void __cpuinit gic_secondary_init(unsigned int gic_nr) gic_cpu_init(&gic_data[gic_nr]); } -#ifdef CONFIG_SMP -void gic_raise_softirq(const struct cpumask *mask, unsigned int irq) -{ - int cpu; - unsigned long map = 0; - - /* Convert our logical CPU mask into a physical one. */ - for_each_cpu(cpu, mask) - map |= gic_cpu_map[cpu]; - - /* - * Ensure that stores to Normal memory are visible to the - * other CPUs before issuing the IPI. - */ - dsb(); - - /* this always happens on GIC0 */ - writel_relaxed(map << 16 | irq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT); -} -#endif - #ifdef CONFIG_OF static int gic_cnt __initdata = 0; |