From mboxrd@z Thu Jan 1 00:00:00 1970 From: balbi@ti.com (Felipe Balbi) Date: Mon, 20 Jul 2015 11:44:08 -0500 Subject: [PATCH] irqchip: omap-intc: improve IRQ handler In-Reply-To: References: <1420224433-27001-1-git-send-email-balbi@ti.com> <20150119213458.GK18552@atomide.com> <20150715064923.GA17550@atomide.com> Message-ID: <20150720164408.GB31951@saruman.tx.rr.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Jul 15, 2015 at 02:36:54PM +0200, Thomas Gleixner wrote: > On Wed, 15 Jul 2015, Tony Lindgren wrote: > > Felipe, > > > > * Tony Lindgren [150119 13:41]: > > > * Felipe Balbi [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 > > > > > > 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. building and testing again. Will resend shortly -- balbi -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: