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@xxxxxxxxxx>
Signed-off-by: Chanho Park <chanho61.park@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
arch/arm/mach-exynos/common.c | 30 +++++++++++++++++++++++++-----
1 file changed, 25 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 715b690..709245e 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -405,6 +405,7 @@ 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;
@@ -461,10 +462,28 @@ 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)
@@ -484,12 +503,13 @@ 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,
@@ -573,12 +593,12 @@ static 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);
}
}
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
