linux-kernel - Re: [PATCH 11/15] irqchip: sun4i: convert to handle_domain_irq

Open Source and information security mailing list archives

Date:	Tue, 15 Jul 2014 11:18:09 +0200
From:	Antoine Ténart 
	<antoine.tenart@...e-electrons.com>
To:	Marc Zyngier <marc.zyngier@....com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Mark Rutland <mark.rutland@....com>,
	Barry Song <baohua@...nel.org>,
	Kevin Hilman <khilman@...aro.org>,
	Russell King <linux@....linux.org.uk>,
	Jason Cooper <jason@...edaemon.net>,
	Alexander Shiyan <shc_work@...l.ru>,
	Larry Bassel <larry.bassel@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Will Deacon <will.deacon@....com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Sudeep Holla <sudeep.holla@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Subject: Re: [PATCH 11/15] irqchip: sun4i: convert to handle_domain_irq

Hi Marc,

On Tue, Jul 08, 2014 at 02:10:34PM +0100, Marc Zyngier wrote:
> Use the new handle_domain_irq method to handle interrupts.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@....com>

I tested this one on an A13 olinuxino. It worked well. I also tested
with CONFIG_PROVE_RCU enabled.

Antoine

> ---
>  drivers/irqchip/irq-sun4i.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/irqchip/irq-sun4i.c b/drivers/irqchip/irq-sun4i.c
> index 6fcef4a..64155b6 100644
> --- a/drivers/irqchip/irq-sun4i.c
> +++ b/drivers/irqchip/irq-sun4i.c
> @@ -136,7 +136,7 @@ IRQCHIP_DECLARE(allwinner_sun4i_ic, "allwinner,sun4i-a10-ic", sun4i_of_init);
>  
>  static void __exception_irq_entry sun4i_handle_irq(struct pt_regs *regs)
>  {
> -	u32 irq, hwirq;
> +	u32 hwirq;
>  
>  	/*
>  	 * hwirq == 0 can mean one of 3 things:
> @@ -154,8 +154,7 @@ static void __exception_irq_entry sun4i_handle_irq(struct pt_regs *regs)
>  		return;
>  
>  	do {
> -		irq = irq_find_mapping(sun4i_irq_domain, hwirq);
> -		handle_IRQ(irq, regs);
> +		handle_domain_irq(sun4i_irq_domain, hwirq, regs);
>  		hwirq = readl(sun4i_irq_base + SUN4I_IRQ_VECTOR_REG) >> 2;
>  	} while (hwirq != 0);
>  }
> -- 
> 2.0.0
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

-- 
Antoine Ténart, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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