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| author | Julien Thierry <julien.thierry@arm.com> | 2017-10-13 12:26:44 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-10-24 16:03:28 +0100 |
| commit | 08395c7f4d9f5808b5754a0dbed969f378bde0c3 (patch) | |
| tree | 4f490fe49af5d5d95245cf8e778eb5c9f74361ec /include/linux/irqdesc.h | |
| parent | 5bdecb7971572a1aef828df507558e7a4dfe25ec (diff) | |
| download | lwn-08395c7f4d9f5808b5754a0dbed969f378bde0c3.tar.gz lwn-08395c7f4d9f5808b5754a0dbed969f378bde0c3.zip | |
irqdesc: Add function to identify percpu_devid irqs
irq_is_percpu indicates whether an irq should only target a single cpu.
PERCPU_DEVID flag indicates that an irq can be configured differently on
each cpu it can target.
Provide a function to check whether an irq is PERCPU_DEVID.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Diffstat (limited to 'include/linux/irqdesc.h')
| -rw-r--r-- | include/linux/irqdesc.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 3e90a094798d..93960cf36e23 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -244,6 +244,14 @@ static inline int irq_is_percpu(unsigned int irq) return desc->status_use_accessors & IRQ_PER_CPU; } +static inline int irq_is_percpu_devid(unsigned int irq) +{ + struct irq_desc *desc; + + desc = irq_to_desc(irq); + return desc->status_use_accessors & IRQ_PER_CPU_DEVID; +} + static inline void irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class) { |