From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [PATCH] OMAP3: run the ASM sleep code from DDR Date: Tue, 12 Jul 2011 06:07:55 +0000 Message-ID: <20110712060755.GA18622@localhost.ucw.cz> References: <1309365623-14704-1-git-send-email-j-pihet@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1309365623-14704-1-git-send-email-j-pihet@ti.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: jean.pihet@newoldbits.com Cc: khilman@ti.com, santosh.shilimkar@ti.com, Russell King , linux-omap@vger.kernel.org, Jean Pihet , linux-arm-kernel@lists.infradead.org List-Id: linux-omap@vger.kernel.org On Wed 2011-06-29 18:40:23, jean.pihet@newoldbits.com wrote: > From: Jean Pihet > > Most of the ASM sleep code (in arch/arm/mach-omap2/sleep34xx.S) > is copied to internal SRAM at boot and after wake-up from CORE OFF mode. > However only a small part of the code really needs to run from internal SRAM. > > This fix lets most of the ASM idle code run from the DDR > in order to minimize the SRAM usage and the overhead in the code copy. So... what do you plan to use sram for? Because I don't think the speedup is worth the complexity... -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html