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irqdesc: Add domain handler for NMIs

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NMI handling code should be executed between calls to nmi_enter and
nmi_exit.

Add a separate domain handler to properly setup NMI context when handling
an interrupt requested as NMI.

Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Julien Thierry
2019-01-31 14:54:01 +00:00
committed by Marc Zyngier
parent 2dcf1fbcad
commit 6e4933a006
2 changed files with 40 additions and 0 deletions
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5
include/linux/irqdesc.h
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@@ -171,6 +171,11 @@ static inline int handle_domain_irq(struct irq_domain *domain,
{
return __handle_domain_irq(domain, hwirq, true, regs);
}
#ifdef CONFIG_IRQ_DOMAIN
int handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq,
struct pt_regs *regs);
#endif
#endif
/* Test to see if a driver has successfully requested an irq */