Date: Mon, 29 Jul 2013 11:29:52 -0600
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: Jason Cooper <jason@lakedaemon.net>
Cc: Dave Martin <Dave.Martin@arm.com>, Mark Rutland <mark.rutland@arm.com>,
        Tomasz Figa <tomasz.figa@gmail.com>,
        Wolfram Sang <w.sang@pengutronix.de>,
        Grant Likely <grant.likely@secretlab.ca>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        Ian Campbell <ian.campbell@citrix.com>,
        Pawel Moll <pawel.moll@arm.com>,
        Stephen Warren <swarren@wwwdotorg.org>,
        Richard Cochran <richardcochran@gmail.com>,
        Domenico Andreoli <cavokz@gmail.com>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        James Bottomley <James.Bottomley@hansenpartnership.com>,
        "ksummit-2013-discuss@lists.linuxfoundation.org" 
	<ksummit-2013-discuss@lists.linuxfoundation.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "jonsmirl@gmail.com" <jonsmirl@gmail.com>
Subject: Re: [Ksummit-2013-discuss] Defining schemas for Device Tree
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On Mon, Jul 29, 2013 at 01:23:39PM -0400, Jason Cooper wrote:

> true, the answer to this problem may be to create a depgraph of the
> nodes based on phandles and child status, then init.  However, if the
> goal is to accelerate boot times, then that should not be calculated
> during each boot, especially since it doesn't likely change from boot to
> boot.

That seems like a really smart idea. dtc could store the startup-order
and dependencies in the dtb someplace and the kernel can just run
through that. Using a combination of declaration order and
topo-phandle sorting would probably cover all cases???

Jason
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