linux-kernel - Re: [PATCH 3/8] arm: mm: reduce fixmap kmap from 32 to 16 CPUS

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Message-ID: <20140808101640.GO4179@bivouac.eciton.net>
Date:	Fri, 8 Aug 2014 11:16:41 +0100
From:	Leif Lindholm <leif.lindholm@...aro.org>
To:	Rob Herring <robh@...nel.org>
Cc:	Kees Cook <keescook@...omium.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Liu hua <sdu.liu@...wei.com>, Mark Salter <msalter@...hat.com>,
	Rabin Vincent <rabin@....in>,
	Nikolay Borisov <Nikolay.Borisov@....com>,
	Nicolas Pitre <nicolas.pitre@...aro.org>,
	Tomasz Figa <t.figa@...sung.com>,
	Doug Anderson <dianders@...gle.com>,
	Jason Wessel <jason.wessel@...driver.com>,
	Will Deacon <will.deacon@....com>,
	Laura Abbott <lauraa@...eaurora.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 3/8] arm: mm: reduce fixmap kmap from 32 to 16 CPUS

On Thu, Aug 07, 2014 at 05:18:44PM -0500, Rob Herring wrote:
> On Thu, Aug 7, 2014 at 10:01 AM, Kees Cook <keescook@...omium.org> wrote:
> > More room is needed in the fixmap range for non-kmap fixmap entries. This
> > reduces the kmap range from 32 to 16 CPUs.
> 
> Do you want this merged or just doing this to get the rest of your
> series working? I'll post my patch for making the fixmap region 3MB
> (it adds back the first 1MB of the top pmd).

Well, I would quite like the generic fixmap stuff merged as soon as
possible, so that early_ioremap can go in. That way, the UEFI patches
are unblocked, and we can start booting the D01 in a sane way rather
than the broken-by-design built-in Linux loader.
 
/
    Leif
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