From 26a4bd3aae43d66ef91988ff23b288d03560c17b Mon Sep 17 00:00:00 2001
From: Julien Thierry <julien.thierry@arm.com>
Date: Fri, 13 Oct 2017 12:26:44 +0100
Subject: [PATCH 027/105] irqdesc: Add function to identify percpu_devid irqs

Git-commit: 08395c7f4d9f5808b5754a0dbed969f378bde0c3
Patch-mainline: v4.15-rc1
References: fate#325865,fate#325861

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>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 include/linux/irqdesc.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index c9be57931b58..687d03cd156a 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -237,6 +237,14 @@ 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)
 {
-- 
2.11.0