linux-kernel - Re: [PATCH V4 1/3] x86: introduce CONFIG_X86_DEV_DMA

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Message-ID: <20120314065614.GB27480@elte.hu>
Date:	Wed, 14 Mar 2012 07:56:14 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc:	linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
	hpa@...or.com, x86@...nel.org,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Giancarlo Asnaghi <giancarlo.asnaghi@...com>,
	Alan Cox <alan@...ux.intel.com>,
	Alessandro Rubini <rubini@...dd.com>
Subject: Re: [PATCH V4 1/3] x86: introduce CONFIG_X86_DEV_DMA_OPS


* Alessandro Rubini <rubini@...dd.com> wrote:

> 32-bit x86 systems may need their own DMA operations, so add a 
> new config option, which is turned on for 64-bit systems. This 
> patch has no functional effect but it paves the way for 
> supporting the STA2x11 I/O Hub and possibly other chips.
> 
> Signed-off-by: Alessandro Rubini <rubini@...dd.com>
> Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@...com>
> Cc: Alan Cox <alan@...ux.intel.com>
> ---
>  arch/x86/Kconfig                   |    5 +++++
>  arch/x86/include/asm/device.h      |    4 ++--
>  arch/x86/include/asm/dma-mapping.h |    2 +-
>  3 files changed, 8 insertions(+), 3 deletions(-)

Ok, the whole series looks pretty clean, modulo a few mostly 
cosmetic details in the driver itself.

Andrew, you are typically merging dma-mapping.h patches, would 
you like to do these, or can we do it in tip:x86/platform?

It would also be nice if the gents on Cc: would voice objections 
or approval, if any.

Thanks,

	Ingo
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