Re: [PATCH v3] irqchip: gic: Allow gic_arch_extn hooks to call into scheduler

From: Stephen Boyd
Date: Wed Aug 13 2014 - 09:53:11 EST


On 08/12, Nicolas Pitre wrote:
> On Tue, 12 Aug 2014, Stephen Boyd wrote:
> >
> > diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
> > index 7c131cf7cc13..c1dc65209899 100644
> > --- a/drivers/irqchip/irq-gic.c
> > +++ b/drivers/irqchip/irq-gic.c
> > @@ -81,6 +81,11 @@ static DEFINE_RAW_SPINLOCK(irq_controller_lock);
> > #define NR_GIC_CPU_IF 8
> > static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly;
> >
> > +#ifdef CONFIG_BL_SWITCHER
> > +/* Synchronize switching CPU interface and sending SGIs */
> > +static DEFINE_RAW_SPINLOCK(gic_sgi_lock);
>
> What about ...
>
> #define sgi_map_lock(flags) raw_spin_lock_irqsave(&gic_sgi_lock, flags)
> #define sgi_map_unlock(flags) raw_spin_unlock_irqrestore(&gic_sgi_lock,
> flags)
> #else sgi_map_lock(flags) (void)(flags)
> #define sgi_map_unlock(flags) (void)(flags)
>
> That would avoid some #ifdefs in the main code.

Sure. v4 shortly.

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