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irqchip: exynos-combiner: Add set_irq_affinity function for combiner_irq

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This patch adds set_irq_affinity function for combiner_irq. We need this
function to enable a arm-pmu because the pmu of exynos has combined type
irqs.

Reviewed-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: changes moved into drivers/irqchip/]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Chanho Park 2012-12-12 14:02:45 +09:00 committed by Kukjin Kim
parent da821eb7d4
commit df7ef462a2
1 changed files with 25 additions and 5 deletions
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30
drivers/irqchip/exynos-combiner.c
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@ -31,6 +31,7 @@ struct combiner_chip_data {
unsigned int irq_offset;
unsigned int irq_mask;
void __iomem *base;
unsigned int parent_irq;
};
static struct irq_domain *combiner_irq_domain;
@ -87,10 +88,28 @@ static void combiner_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
chained_irq_exit(chip, desc);
}
#ifdef CONFIG_SMP
static int combiner_set_affinity(struct irq_data *d,
const struct cpumask *mask_val, bool force)
{
struct combiner_chip_data *chip_data = irq_data_get_irq_chip_data(d);
struct irq_chip *chip = irq_get_chip(chip_data->parent_irq);
struct irq_data *data = irq_get_irq_data(chip_data->parent_irq);
if (chip && chip->irq_set_affinity)
return chip->irq_set_affinity(data, mask_val, force);
else
return -EINVAL;
}
#endif
static struct irq_chip combiner_chip = {
.name = "COMBINER",
.irq_mask = combiner_mask_irq,
.irq_unmask = combiner_unmask_irq,
.name = "COMBINER",
.irq_mask = combiner_mask_irq,
.irq_unmask = combiner_unmask_irq,
#ifdef CONFIG_SMP
.irq_set_affinity = combiner_set_affinity,
#endif
};
static void __init combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq)
@ -110,12 +129,13 @@ static void __init combiner_cascade_irq(unsigned int combiner_nr, unsigned int i
}
static void __init combiner_init_one(unsigned int combiner_nr,
void __iomem *base)
void __iomem *base, unsigned int irq)
{
combiner_data[combiner_nr].base = base;
combiner_data[combiner_nr].irq_offset = irq_find_mapping(
combiner_irq_domain, combiner_nr * MAX_IRQ_IN_COMBINER);
combiner_data[combiner_nr].irq_mask = 0xff << ((combiner_nr % 4) << 3);
combiner_data[combiner_nr].parent_irq = irq;
/* Disable all interrupts */
__raw_writel(combiner_data[combiner_nr].irq_mask,
@ -199,12 +219,12 @@ void __init combiner_init(void __iomem *combiner_base,
}
for (i = 0; i < max_nr; i++) {
combiner_init_one(i, combiner_base + (i >> 2) * 0x10);
irq = IRQ_SPI(i);
#ifdef CONFIG_OF
if (np)
irq = irq_of_parse_and_map(np, i);
#endif
combiner_init_one(i, combiner_base + (i >> 2) * 0x10, irq);
combiner_cascade_irq(i, irq);
}
}