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SubjectRe: [PATCH v4 26/26] irqchip/gic-v3: Allow interrupts to be set as pseudo-NMI
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On 25/05/18 10:49, Julien Thierry wrote:
> Provide a way to set a GICv3 interrupt as pseudo-NMI. The interrupt
> must not be enabled when setting/clearing the NMI status of the interrupt.
>
> Signed-off-by: Julien Thierry <julien.thierry@arm.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Jason Cooper <jason@lakedaemon.net>
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> ---
> drivers/irqchip/irq-gic-v3.c | 54 ++++++++++++++++++++++++++++++++++++++++++++
> include/linux/interrupt.h | 1 +
> 2 files changed, 55 insertions(+)
>

[...]

> diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
> index 5426627..02c794f 100644
> --- a/include/linux/interrupt.h
> +++ b/include/linux/interrupt.h
> @@ -419,6 +419,7 @@ enum irqchip_irq_state {
> IRQCHIP_STATE_ACTIVE, /* Is interrupt in progress? */
> IRQCHIP_STATE_MASKED, /* Is interrupt masked? */
> IRQCHIP_STATE_LINE_LEVEL, /* Is IRQ line high? */
> + IRQCHIP_STATE_NMI, /* Is IRQ an NMI? */
> };

After discussing with Thomas, NMI setting should not be exposed/managed
through the generic irq interface.

--
Julien Thierry

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