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authorMarc Zyngier <maz@kernel.org>2020-05-19 14:58:13 +0100
committerMarc Zyngier <maz@kernel.org>2020-09-13 17:04:38 +0100
commit83cfac95c01817819c2a51f0931d798d851f8a08 (patch)
treede7e3d7ac19402c2457b5f090c79752290bc51ff /include/linux/irq.h
parentc5e5ec033c4ab25c53f1fd217849e75deb0bf7bf (diff)
downloadlinux-stericsson-83cfac95c01817819c2a51f0931d798d851f8a08.tar.gz
genirq: Allow interrupts to be excluded from /proc/interrupts
A number of architectures implement IPI statistics directly, duplicating the core kstat_irqs accounting. As we move IPIs to being actual IRQs, we would end-up with a confusing display in /proc/interrupts (where the IPIs would appear twice). In order to solve this, allow interrupts to be flagged as "hidden", which excludes them from /proc/interrupts. Reviewed-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 57205bbf46bf..63b9d962ee67 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -71,6 +71,7 @@ enum irqchip_irq_state;
* it from the spurious interrupt detection
* mechanism and from core side polling.
* IRQ_DISABLE_UNLAZY - Disable lazy irq disable
+ * IRQ_HIDDEN - Don't show up in /proc/interrupts
*/
enum {
IRQ_TYPE_NONE = 0x00000000,
@@ -97,13 +98,14 @@ enum {
IRQ_PER_CPU_DEVID = (1 << 17),
IRQ_IS_POLLED = (1 << 18),
IRQ_DISABLE_UNLAZY = (1 << 19),
+ IRQ_HIDDEN = (1 << 20),
};
#define IRQF_MODIFY_MASK \
(IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \
IRQ_NOAUTOEN | IRQ_MOVE_PCNTXT | IRQ_LEVEL | IRQ_NO_BALANCING | \
IRQ_PER_CPU | IRQ_NESTED_THREAD | IRQ_NOTHREAD | IRQ_PER_CPU_DEVID | \
- IRQ_IS_POLLED | IRQ_DISABLE_UNLAZY)
+ IRQ_IS_POLLED | IRQ_DISABLE_UNLAZY | IRQ_HIDDEN)
#define IRQ_NO_BALANCING_MASK (IRQ_PER_CPU | IRQ_NO_BALANCING)