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

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Date:	Fri, 22 May 2015 08:08:30 -0600
From:	Toshi Kani <toshi.kani@...com>
To:	Thomas Gleixner <tglx@...utronix.de>
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 Fri, 2015-05-22 at 09:15 +0200, Thomas Gleixner wrote:
> 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/

Will do.

Thanks,
-Toshi

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