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From: Linus Walleij <linus.walleij@stericsson.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Bryan Huntsman <bryanh@codeaurora.org>,
	Colin Cross <ccross@android.com>,
	Daniel Walker <dwalker@codeaurora.org>,
	David Brown <davidb@codeaurora.org>,
	Erik Gilling <konkers@android.com>,
	Kukjin Kim <kgene.kim@samsung.com>,
	Olof Johansson <olof@lixom.net>,
	Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>,
	Tony Lindgren <tony@atomide.com>,
	linux-tegra@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-samsung-soc@vger.kernel.org, linux-omap@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] TWD: enable one-shot mode
Date: Tue, 28 Dec 2010 02:17:42 +0100	[thread overview]
Message-ID: <AANLkTinU+x2uV34SCO=p2K4z6BO_DSYy2+1BRU5eAgHO@mail.gmail.com> (raw)
In-Reply-To: <20101224191855.GJ20587@n2100.arm.linux.org.uk>

2010/12/24 Russell King - ARM Linux <linux@arm.linux.org.uk>:
> Allow one shot timer mode to be used with the TWD.  This allows
> NOHZ mode to be used on SMP systems using the TWD localtimer.
>
> Tested on Versatile Express.
>
> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
> ---
> Acks/Tested-by's would be appreciated, thanks.

Tested on the U8500 and doesn't seem to break anything...

Local interrupts after a few minutes of use before patching
(and enabling NO_HZ):
LOC:       8203       8224

After patching;
LOC:        233        322

Looks like it's working, too.

Tested-by: Linus Walleij <linus.walleij@stericsson.com>

Yours,
Linus Walleij

  reply	other threads:[~2010-12-28  1:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-24 19:18 [PATCH] TWD: enable one-shot mode Russell King - ARM Linux
2010-12-28  1:17 ` Linus Walleij [this message]
2011-01-11  5:12 ` Stephen Boyd
2011-01-11 11:52   ` Russell King - ARM Linux
2011-01-14 18:45     ` Stephen Boyd

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