linux-kernel - Re: [PATCH v9 5/10] arch/*/asm/io.h: Add ioremap

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Date:	Fri, 22 May 2015 09:15:13 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Toshi Kani <toshi.kani@...com>
cc:	hpa@...or.com, mingo@...hat.com, akpm@...ux-foundation.org,
	arnd@...db.de, linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, linux-nvdimm@...1.01.org, jgross@...e.com,
	stefan.bader@...onical.com, luto@...capital.net, hmh@....eng.br,
	yigal@...xistor.com, konrad.wilk@...cle.com, Elliott@...com,
	mcgrof@...e.com, hch@....de
Subject: Re: [PATCH v9 5/10] arch/*/asm/io.h: Add ioremap_wt() to all
 architectures

On Wed, 13 May 2015, Toshi Kani wrote:

> This patch adds ioremap_wt() to all arch-specific asm/io.h which
> define ioremap_wc() locally.  These arch-specific asm/io.h do not
> include <asm-generic/iomap.h>.  Some of them include
> <asm-generic/io.h>, but ioremap_wt() is defined for consistency
> since they define all ioremap_xxx locally.
> 
> ioremap_wt() is defined indentical to ioremap_nocache() to all
> architectures without WT support.
> 
> frv and m68k already have ioremap_writethrough().  This patch
> implements ioremap_wt() indetical to ioremap_writethrough() and
> defines ARCH_HAS_IOREMAP_WT in both architectures.

This wants a follow up patch, which replaces ioremap_writethrough() in
drivers/ with ioremap_wt and removes ioremap_writethrough() from arch/

Thanks,

	tglx
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