From 83cfac95c01817819c2a51f0931d798d851f8a08 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Tue, 19 May 2020 14:58:13 +0100 Subject: 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 Signed-off-by: Marc Zyngier --- kernel/irq/settings.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'kernel/irq/settings.h') 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; +} -- cgit