From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm: omap: reduce zImage size on omap2plus_defconfig
Date: Wed, 7 Jan 2015 16:43:50 -0800 [thread overview]
Message-ID: <20150108004349.GT13010@atomide.com> (raw)
In-Reply-To: <20141226162618.GJ17430@saruman>
* Felipe Balbi <balbi@ti.com> [141226 08:29]:
> On Fri, Dec 26, 2014 at 08:13:49AM -0800, Tony Lindgren wrote:
> > * Felipe Balbi <balbi@ti.com> [141226 07:29]:
> > > On Fri, Dec 26, 2014 at 03:04:00PM +0200, Grygorii.Strashko at linaro.org wrote:
> > > > >>>
> > > > >>> Tony, your call
> > > >
> > > > May be it will be good thing to split this patch. That way more
> > > > information will be stored in commit log about which set of options
> > > > gives us what benefits. And also, It will allow to continue with
> > > > agreed changes. ?
> > >
> > > can be done, but then again, it's just a defconfig change. Tony, your
> > > call.
> > >
> > > > >> I think we should move omap2plus_defconfig to be mostly modular and
> > > > >> usable for distros as a base. Most distros prefer to build almost
> > > > >> everything as loadable modules. And my preference is that we should
> > > > >> only keep the minimum rootfs for devices and serial support as
> > > > >> built-in and rely on initramfs for most drivers. And slowly move
> > > > >> also the remaining built-in drivers to be loadable modules.
> > > > >>
> > > > >> The reasons for having drivers as loadable modules are many. It
> > > > >> allows distros to use the same kernel for all the devices without
> > > > >> bloating the kernel. It makes developing drivers easier as just the
> > > > >> module needs to be reloaded. And loadable modules protect us from
> > > > >> cross-framework spaghetti calls in the kernel as the interfaces are
> > > > >> clearly defined.
> > > > >>
> > > > >> Are there people really using SATA as rootfs right now on omaps?
> > > > >
> > > > > Yes. That is exactly my point.
> > > > >
> > > >
> > > > From my side I'd like to note that I know about few ongoing projects
> > > > on DRA7x EVM where SATA is used as rootfs - now It is the fast
> > > > possible way to start Android.
> > >
> > > now this is something different. This is evidence that there are people
> > > relying on SATA on rootfs. I'll leave to Tony again.
> >
> > OK sounds like people are really using SATA as rootfs, so we might as
> > well keep it built in then. And it does not affect the PM on the devices
> > that do have PM working, that has been a problem with having some
> > drivers built-in.
> >
> > We can still work towards making the current rootfs device drivers
> > into loadable modules in the long term :)
>
> Here's v3:
Thanks, applying this into omap-for-v3.20/defconfig.
Regards,
Tony
next prev parent reply other threads:[~2015-01-08 0:43 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-22 18:05 [PATCH] arm: omap: reduce zImage size on omap2plus_defconfig Felipe Balbi
2014-12-22 18:11 ` Felipe Balbi
2014-12-23 7:30 ` Igor Grinberg
2014-12-23 16:19 ` Felipe Balbi
2014-12-23 16:56 ` Tony Lindgren
2014-12-23 17:07 ` Felipe Balbi
2014-12-24 11:53 ` Igor Grinberg
2014-12-24 15:49 ` Felipe Balbi
2014-12-24 19:04 ` Tony Lindgren
2014-12-25 10:13 ` Igor Grinberg
2014-12-26 4:42 ` Felipe Balbi
2014-12-26 11:56 ` Igor Grinberg
2014-12-26 13:42 ` Javier Martinez Canillas
2014-12-26 15:19 ` Felipe Balbi
2014-12-26 19:38 ` Javier Martinez Canillas
2014-12-26 19:47 ` Felipe Balbi
2014-12-26 15:09 ` Felipe Balbi
2014-12-26 16:43 ` Igor Grinberg
2014-12-26 13:04 ` Grygorii.Strashko@linaro.org
2014-12-26 15:26 ` Felipe Balbi
2014-12-26 16:13 ` Tony Lindgren
2014-12-26 16:26 ` Felipe Balbi
2015-01-08 0:43 ` Tony Lindgren [this message]
2014-12-26 4:37 ` Felipe Balbi
2014-12-26 12:08 ` Igor Grinberg
2014-12-26 15:24 ` Felipe Balbi
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