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From: Sekhar Nori <nsekhar@ti.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Lindgren <tony@atomide.com>,
	Jason Cooper <jason@lakedaemon.net>,
	Marc Zyngier <marc.zyngier@arm.com>,
	John Ogness <john.ogness@linutronix.de>,
	Felipe Balbi <balbi@ti.com>,
	Linux OMAP Mailing List <linux-omap@vger.kernel.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] irqchip: omap-intc: add support for spurious irq handling
Date: Mon, 4 Jan 2016 14:05:33 +0530	[thread overview]
Message-ID: <568A2ED5.9060704@ti.com> (raw)
In-Reply-To: <20151215152842.GR23396@atomide.com>

Hi Thomas,

On Tuesday 15 December 2015 08:58 PM, Tony Lindgren wrote:
> * Sekhar Nori <nsekhar@ti.com> [151215 06:26]:
>> Under some conditions, irq sorting procedure used
>> by INTC can go wrong resulting in a spurious irq
>> getting reported.
>>
>> If this condition is not handled, it results in
>> endless stream of:
>>
>>     unexpected IRQ trap at vector 00
>>
>> messages from ack_bad_irq()
>>
>> Handle the spurious interrupt condition in omap-intc
>> driver to prevent this.
>>
>> Measurements using kernel function profiler on AM335x
>> EVM running at 720MHz show that after this patch
>> omap_intc_handle_irq() takes about 37.4us against
>> 34us before this patch.
>>
>> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
> 
> Looks good to me, probably should get tagged Cc stable when
> committing:
> 
> Acked-by: Tony Lindgren <tony@atomide.com>

Can you please apply this if it looks good?

Thanks,
Sekhar

WARNING: multiple messages have this Message-ID (diff)
From: Sekhar Nori <nsekhar@ti.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Lindgren <tony@atomide.com>,
	Jason Cooper <jason@lakedaemon.net>,
	Marc Zyngier <marc.zyngier@arm.com>,
	John Ogness <john.ogness@linutronix.de>,
	Felipe Balbi <balbi@ti.com>,
	Linux OMAP Mailing List <linux-omap@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3] irqchip: omap-intc: add support for spurious irq handling
Date: Mon, 4 Jan 2016 14:05:33 +0530	[thread overview]
Message-ID: <568A2ED5.9060704@ti.com> (raw)
In-Reply-To: <20151215152842.GR23396@atomide.com>

Hi Thomas,

On Tuesday 15 December 2015 08:58 PM, Tony Lindgren wrote:
> * Sekhar Nori <nsekhar@ti.com> [151215 06:26]:
>> Under some conditions, irq sorting procedure used
>> by INTC can go wrong resulting in a spurious irq
>> getting reported.
>>
>> If this condition is not handled, it results in
>> endless stream of:
>>
>>     unexpected IRQ trap at vector 00
>>
>> messages from ack_bad_irq()
>>
>> Handle the spurious interrupt condition in omap-intc
>> driver to prevent this.
>>
>> Measurements using kernel function profiler on AM335x
>> EVM running at 720MHz show that after this patch
>> omap_intc_handle_irq() takes about 37.4us against
>> 34us before this patch.
>>
>> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
> 
> Looks good to me, probably should get tagged Cc stable when
> committing:
> 
> Acked-by: Tony Lindgren <tony@atomide.com>

Can you please apply this if it looks good?

Thanks,
Sekhar

  reply	other threads:[~2016-01-04  8:35 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-15 14:26 [PATCH v3] irqchip: omap-intc: add support for spurious irq handling Sekhar Nori
2015-12-15 14:26 ` Sekhar Nori
2015-12-15 15:28 ` Tony Lindgren
2016-01-04  8:35   ` Sekhar Nori [this message]
2016-01-04  8:35     ` Sekhar Nori
2016-01-06 10:39 ` [tip:irq/core] irqchip/omap-intc: Add " tip-bot for Sekhar Nori

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