linux-kernel - Re: [PATCH v2 1/5] mm: create generic early

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Date:	Tue, 7 Jan 2014 15:25:56 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	Mark Salter <msalter@...hat.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	"patches@...aro.org" <patches@...aro.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>, Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Russell King <linux@....linux.org.uk>,
	Will Deacon <Will.Deacon@....com>
Subject: Re: [PATCH v2 1/5] mm: create generic early_ioremap() support

On Tue, Jan 07, 2014 at 02:35:16AM +0000, Mark Salter wrote:
> This patch creates a generic implementation of early_ioremap() support
> based on the existing x86 implementation. early_ioremp() is useful for
> early boot code which needs to temporarily map I/O or memory regions
> before normal mapping functions such as ioremap() are available.
> 
> There is one difference from the existing x86 implementation which
> should be noted. The generic early_memremap() function does not return
> an __iomem pointer and a new early_memunmap() function has been added
> to act as a wrapper for early_iounmap() but with a non __iomem pointer
> passed in. This is in line with the first patch of this series:
> 
>   https://lkml.org/lkml/2013/12/22/69
> 
> Signed-off-by: Mark Salter <msalter@...hat.com>
> CC: x86@...nel.org
> CC: linux-arm-kernel@...ts.infradead.org
> CC: Andrew Morton <akpm@...ux-foundation.org>
> CC: Arnd Bergmann <arnd@...db.de>
> CC: Ingo Molnar <mingo@...nel.org>
> CC: Thomas Gleixner <tglx@...utronix.de>
> CC: "H. Peter Anvin" <hpa@...or.com>
> CC: Russell King <linux@....linux.org.uk>
> CC: Catalin Marinas <catalin.marinas@....com>
> CC: Will Deacon <will.deacon@....com>

Acked-by: Catalin Marinas <catalin.marinas@....com>
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