From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: Re: [PATCH] TWD: enable one-shot mode Date: Mon, 10 Jan 2011 21:12:36 -0800 Message-ID: <4D2BE6C4.4040806@codeaurora.org> References: <20101224191855.GJ20587@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20101224191855.GJ20587@n2100.arm.linux.org.uk> Sender: linux-samsung-soc-owner@vger.kernel.org To: Russell King - ARM Linux Cc: Catalin Marinas , Bryan Huntsman , Colin Cross , Daniel Walker , David Brown , Erik Gilling , Kukjin Kim , Linus Walleij , Olof Johansson , Srinidhi Kasagar , Tony Lindgren , 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 List-Id: linux-arm-msm@vger.kernel.org On 12/24/2010 11:18 AM, Russell King - ARM Linux wrote: > 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 > --- > Acks/Tested-by's would be appreciated, thanks. > I see this patch was already tested and merged but can you elaborate on why this was done? From what I understand, NOHZ selects one-shot (like is done in this patch), so why don't the machines with a TWD choose NOHZ or high res timers? Putting it another way, if my machine supports a oneshot capable clockevent device should I be selecting oneshot regardless of the NOHZ and high res config option being chosen? -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.