diff options
Diffstat (limited to 'arch/arm/common/gic.c')
| -rw-r--r-- | arch/arm/common/gic.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index 9105d48c02de..c7155bdeb815 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -36,7 +36,7 @@ static DEFINE_SPINLOCK(irq_controller_lock); /* Address of GIC 0 CPU interface */ -void __iomem *gic_cpu_base_addr; +void __iomem *gic_cpu_base_addr __read_mostly; struct gic_chip_data { unsigned int irq_offset; @@ -48,7 +48,7 @@ struct gic_chip_data { #define MAX_GIC_NR 1 #endif -static struct gic_chip_data gic_data[MAX_GIC_NR]; +static struct gic_chip_data gic_data[MAX_GIC_NR] __read_mostly; static inline void __iomem *gic_dist_base(unsigned int irq) { @@ -216,21 +216,16 @@ void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq) set_irq_chained_handler(irq, gic_handle_cascade_irq); } -static void __init gic_dist_init(unsigned int gic_nr, void __iomem *base, +static void __init gic_dist_init(struct gic_chip_data *gic, unsigned int irq_start) { unsigned int gic_irqs, irq_limit, i; + void __iomem *base = gic->dist_base; u32 cpumask = 1 << smp_processor_id(); - if (gic_nr >= MAX_GIC_NR) - BUG(); - cpumask |= cpumask << 8; cpumask |= cpumask << 16; - gic_data[gic_nr].dist_base = base; - gic_data[gic_nr].irq_offset = (irq_start - 1) & ~31; - writel(0, base + GIC_DIST_CTRL); /* @@ -270,7 +265,7 @@ static void __init gic_dist_init(unsigned int gic_nr, void __iomem *base, /* * Limit number of interrupts registered to the platform maximum */ - irq_limit = gic_data[gic_nr].irq_offset + gic_irqs; + irq_limit = gic->irq_offset + gic_irqs; if (WARN_ON(irq_limit > NR_IRQS)) irq_limit = NR_IRQS; @@ -279,7 +274,7 @@ static void __init gic_dist_init(unsigned int gic_nr, void __iomem *base, */ for (i = irq_start; i < irq_limit; i++) { set_irq_chip(i, &gic_chip); - set_irq_chip_data(i, &gic_data[gic_nr]); + set_irq_chip_data(i, gic); set_irq_handler(i, handle_level_irq); set_irq_flags(i, IRQF_VALID | IRQF_PROBE); } @@ -287,19 +282,12 @@ static void __init gic_dist_init(unsigned int gic_nr, void __iomem *base, writel(1, base + GIC_DIST_CTRL); } -static void __cpuinit gic_cpu_init(unsigned int gic_nr, void __iomem *base) +static void __cpuinit gic_cpu_init(struct gic_chip_data *gic) { - void __iomem *dist_base; + void __iomem *dist_base = gic->dist_base; + void __iomem *base = gic->cpu_base; int i; - if (gic_nr >= MAX_GIC_NR) - BUG(); - - dist_base = gic_data[gic_nr].dist_base; - BUG_ON(!dist_base); - - gic_data[gic_nr].cpu_base = base; - /* * Deal with the banked PPI and SGI interrupts - disable all * PPI interrupts, ensure all SGI interrupts are enabled. @@ -320,15 +308,27 @@ static void __cpuinit gic_cpu_init(unsigned int gic_nr, void __iomem *base) void __init gic_init(unsigned int gic_nr, unsigned int irq_start, void __iomem *dist_base, void __iomem *cpu_base) { + struct gic_chip_data *gic; + + BUG_ON(gic_nr >= MAX_GIC_NR); + + gic = &gic_data[gic_nr]; + gic->dist_base = dist_base; + gic->cpu_base = cpu_base; + gic->irq_offset = (irq_start - 1) & ~31; + if (gic_nr == 0) gic_cpu_base_addr = cpu_base; - gic_dist_init(gic_nr, dist_base, irq_start); - gic_cpu_init(gic_nr, cpu_base); + + gic_dist_init(gic, irq_start); + gic_cpu_init(gic); } void __cpuinit gic_secondary_init(unsigned int gic_nr) { - gic_cpu_init(gic_nr, gic_data[gic_nr].cpu_base); + BUG_ON(gic_nr >= MAX_GIC_NR); + + gic_cpu_init(&gic_data[gic_nr]); } #ifdef CONFIG_SMP |
