summaryrefslogtreecommitdiff
path: root/kernel/irq/irqdesc.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 04:34:46 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 04:34:46 -0300
commit863981e96738983919de841ec669e157e6bdaeb0 (patch)
treed6d89a12e7eb8017837c057935a2271290907f76 /kernel/irq/irqdesc.c
parent8dec7c70575785729a6a9e6719a955e9c545bcab (diff)
Linux-libre 4.7.1-gnupck-4.7.1-gnu
Diffstat (limited to 'kernel/irq/irqdesc.c')
-rw-r--r--kernel/irq/irqdesc.c26
1 files changed, 25 insertions, 1 deletions
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 0ccd02881..8731e1c5d 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -595,7 +595,8 @@ void __irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags, bool bus)
chip_bus_sync_unlock(desc);
}
-int irq_set_percpu_devid(unsigned int irq)
+int irq_set_percpu_devid_partition(unsigned int irq,
+ const struct cpumask *affinity)
{
struct irq_desc *desc = irq_to_desc(irq);
@@ -610,10 +611,33 @@ int irq_set_percpu_devid(unsigned int irq)
if (!desc->percpu_enabled)
return -ENOMEM;
+ if (affinity)
+ desc->percpu_affinity = affinity;
+ else
+ desc->percpu_affinity = cpu_possible_mask;
+
irq_set_percpu_devid_flags(irq);
return 0;
}
+int irq_set_percpu_devid(unsigned int irq)
+{
+ return irq_set_percpu_devid_partition(irq, NULL);
+}
+
+int irq_get_percpu_devid_partition(unsigned int irq, struct cpumask *affinity)
+{
+ struct irq_desc *desc = irq_to_desc(irq);
+
+ if (!desc || !desc->percpu_enabled)
+ return -EINVAL;
+
+ if (affinity)
+ cpumask_copy(affinity, desc->percpu_affinity);
+
+ return 0;
+}
+
void kstat_incr_irq_this_cpu(unsigned int irq)
{
kstat_incr_irqs_this_cpu(irq_to_desc(irq));