From: Pavel Machek <pavel@ucw.cz>
To: jean.pihet@newoldbits.com
Cc: khilman@ti.com, santosh.shilimkar@ti.com,
Russell King <rmk+kernel@arm.linux.org.uk>,
linux-omap@vger.kernel.org, Jean Pihet <j-pihet@ti.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] OMAP3: run the ASM sleep code from DDR
Date: Tue, 12 Jul 2011 06:07:55 +0000 [thread overview]
Message-ID: <20110712060755.GA18622@localhost.ucw.cz> (raw)
In-Reply-To: <1309365623-14704-1-git-send-email-j-pihet@ti.com>
On Wed 2011-06-29 18:40:23, jean.pihet@newoldbits.com wrote:
> From: Jean Pihet <j-pihet@ti.com>
>
> 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
WARNING: multiple messages have this Message-ID (diff)
From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] OMAP3: run the ASM sleep code from DDR
Date: Tue, 12 Jul 2011 06:07:55 +0000 [thread overview]
Message-ID: <20110712060755.GA18622@localhost.ucw.cz> (raw)
In-Reply-To: <1309365623-14704-1-git-send-email-j-pihet@ti.com>
On Wed 2011-06-29 18:40:23, jean.pihet at newoldbits.com wrote:
> From: Jean Pihet <j-pihet@ti.com>
>
> 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
next prev parent reply other threads:[~2011-07-12 6:07 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-29 16:40 [PATCH] OMAP3: run the ASM sleep code from DDR jean.pihet
2011-06-29 16:40 ` jean.pihet at newoldbits.com
2011-06-29 17:29 ` Kevin Hilman
2011-06-29 17:29 ` Kevin Hilman
2011-06-29 17:48 ` Jean Pihet
2011-06-29 17:48 ` Jean Pihet
2011-06-29 18:05 ` Russell King - ARM Linux
2011-06-29 18:05 ` Russell King - ARM Linux
2011-06-29 19:06 ` Kevin Hilman
2011-06-29 19:06 ` Kevin Hilman
2011-06-29 21:54 ` Russell King - ARM Linux
2011-06-29 21:54 ` Russell King - ARM Linux
2011-06-29 23:30 ` Kevin Hilman
2011-06-29 23:30 ` Kevin Hilman
2011-06-29 21:45 ` Russell King - ARM Linux
2011-06-29 21:45 ` Russell King - ARM Linux
2011-06-30 8:55 ` Peter De Schrijver
2011-07-12 6:07 ` Pavel Machek [this message]
2011-07-12 6:07 ` Pavel Machek
2011-07-13 8:14 ` Paul Walmsley
2011-07-13 8:14 ` Paul Walmsley
-- strict thread matches above, loose matches on Subject: below --
2011-06-17 8:52 jean.pihet
2011-06-17 9:51 ` Santosh Shilimkar
2011-06-24 0:17 ` Kevin Hilman
2011-06-24 8:32 ` Jean Pihet
2011-06-24 14:42 ` Kevin Hilman
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