linux-kernel - Re: [PATCH 4/4] arm64: add early

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Message-ID: <1387307715.1979.169.camel@deneb.redhat.com>
Date:	Tue, 17 Dec 2013 14:15:15 -0500
From:	Mark Salter <msalter@...hat.com>
To:	Catalin Marinas <catalin.marinas@....com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Leif Lindholm <leif.lindholm@...aro.org>,
	Will Deacon <Will.Deacon@....com>,
	Rob Landley <rob@...dley.net>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: Re: [PATCH 4/4] arm64: add early_ioremap support

On Thu, 2013-12-05 at 16:28 +0000, Catalin Marinas wrote:
> > +#define FIXMAP_PAGE_NORMAL __pgprot(PROT_NORMAL | PTE_PXN | PTE_UXN)
> 
> I'll push a fix to change PROT_DEFAULT to (pgprot_default | PTE_DIRTY).
> 

This doesn't help early_ioremap because pgprot_default gets set up in
init_mem_pgprot() which is called from paging_init(). The early_ioremaps
happen before paging_init(). Would it be okay to make init_mem_pgprot()
non-static and call it from setup_arch() before early_ioremap_init()?

--Mark


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