linux-kernel - Re: [RFC] arm64: ioremap: add ioremap

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Message-ID: <20151013152011.GE11573@e104818-lin.cambridge.arm.com>
Date:	Tue, 13 Oct 2015 16:20:11 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Will Deacon <will.deacon@....com>
Cc:	mark.rutland@....com, toshi.kani@...com, andre.przywara@....com,
	michal.simek@...inx.com, linux-kernel@...r.kernel.org,
	yalin wang <yalin.wang2010@...il.com>, treding@...dia.com,
	mingo@...nel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC] arm64: ioremap: add ioremap_cache macro

On Tue, Oct 13, 2015 at 03:23:27PM +0100, Will Deacon wrote:
> On Tue, Oct 13, 2015 at 03:10:55PM +0100, Catalin Marinas wrote:
> > On Mon, Oct 12, 2015 at 10:28:18AM +0800, yalin wang wrote:
> > > Add ioremap_cache macro, because some code will test if this macro
> > > is defined or not, and will generate a generric version if not defined,
> > > for example, memremap.c do like this.
> > > 
> > > Signed-off-by: yalin wang <yalin.wang2010@...il.com>
> > > ---
> > >  arch/arm64/include/asm/io.h | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
> > > index 44be1e0..d6b620c 100644
> > > --- a/arch/arm64/include/asm/io.h
> > > +++ b/arch/arm64/include/asm/io.h
> > > @@ -172,6 +172,7 @@ extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
> > >  #define ioremap_wc(addr, size)		__ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
> > >  #define ioremap_wt(addr, size)		__ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
> > >  #define iounmap				__iounmap
> > > +#define ioremap_cache                  ioremap_cache
> > 
> > Applied. Thanks.
> 
> I'm not sure we want this. See:
> 
>   https://lkml.org/lkml/2015/10/9/699

Thanks Will and Arnd, I missed this. Patch reverted.

-- 
Catalin
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