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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 /kernel/irq/settings.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 'kernel/irq/settings.h')
-rw-r--r--kernel/irq/settings.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h
index e43795cd2ccf..403378b9947b 100644
--- a/kernel/irq/settings.h
+++ b/kernel/irq/settings.h
@@ -17,6 +17,7 @@ enum {
_IRQ_PER_CPU_DEVID = IRQ_PER_CPU_DEVID,
_IRQ_IS_POLLED = IRQ_IS_POLLED,
_IRQ_DISABLE_UNLAZY = IRQ_DISABLE_UNLAZY,
+ _IRQ_HIDDEN = IRQ_HIDDEN,
_IRQF_MODIFY_MASK = IRQF_MODIFY_MASK,
};
@@ -31,6 +32,7 @@ enum {
#define IRQ_PER_CPU_DEVID GOT_YOU_MORON
#define IRQ_IS_POLLED GOT_YOU_MORON
#define IRQ_DISABLE_UNLAZY GOT_YOU_MORON
+#define IRQ_HIDDEN GOT_YOU_MORON
#undef IRQF_MODIFY_MASK
#define IRQF_MODIFY_MASK GOT_YOU_MORON
@@ -167,3 +169,8 @@ static inline void irq_settings_clr_disable_unlazy(struct irq_desc *desc)
{
desc->status_use_accessors &= ~_IRQ_DISABLE_UNLAZY;
}
+
+static inline bool irq_settings_is_hidden(struct irq_desc *desc)
+{
+ return desc->status_use_accessors & _IRQ_HIDDEN;
+}