From: Thomas Gleixner <tglx@linutronix.de>
To: Tony Lindgren <tony@atomide.com>
Cc: Linux ARM Kernel Mailing List
<linux-arm-kernel@lists.infradead.org>,
Linux OMAP Mailing List <linux-omap@vger.kernel.org>,
Jason Cooper <jason@lakedaemon.net>, Felipe Balbi <balbi@ti.com>,
Aaro Koskinen <aaro.koskinen@iki.fi>
Subject: Re: [PATCH] irqchip: omap-intc: improve IRQ handler
Date: Wed, 15 Jul 2015 14:36:54 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.11.1507151435480.18576@nanos> (raw)
In-Reply-To: <20150715064923.GA17550@atomide.com>
On Wed, 15 Jul 2015, Tony Lindgren wrote:
> Felipe,
>
> * Tony Lindgren <tony@atomide.com> [150119 13:41]:
> > * Felipe Balbi <balbi@ti.com> [150102 10:50]:
> > > as it turns out the current IRQ number will
> > > *always* be available from SIR register which
> > > renders the reads of PENDING registers as plain
> > > unnecessary overhead.
> > >
> > > In order to catch any situation where SIR reads
> > > as zero, we're adding a WARN() to turn it into
> > > a very verbose error and users actually report
> > > it.
> > >
> > > With this patch average running time of
> > > omap_intc_handle_irq() reduced from about 28.5us
> > > to 19.8us as measured by the kernel function
> > > profiler.
> > >
> > > Tested with BeagleBoneBlack Rev A5C.
> > >
> > > Signed-off-by: Felipe Balbi <balbi@ti.com>
> >
> > Jason, looks like this is not showing up in Linux next. The
> > same for the changes I did for dm81xx.
>
> Can you please resend this to Jason? Looks like this
> is still not merged.
Please send it to me asap and please cc lkml on irqchip patches.
Thanks,
tglx
next prev parent reply other threads:[~2015-07-15 12:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-02 18:47 [PATCH] irqchip: omap-intc: improve IRQ handler Felipe Balbi
2015-01-02 21:32 ` Tony Lindgren
2015-01-02 21:39 ` Felipe Balbi
2015-01-02 22:18 ` [PATCH v2] " Felipe Balbi
2015-01-19 21:34 ` [PATCH] " Tony Lindgren
2015-07-15 8:15 ` Tony Lindgren
2015-07-15 12:36 ` Thomas Gleixner [this message]
2015-07-20 16:44 ` Felipe Balbi
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