linux-kernel - Re: [PATCH] ia64: SN specific version of dma_get_required

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Message-ID: <20081117173930.35342b31@hale.suse.de>
Date:	Mon, 17 Nov 2008 17:39:30 +0100
From:	Bernhard Walle <bwalle@...e.de>
To:	John Keller <jpk@....com>
Cc:	linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org,
	John Keller <jpk@....com>
Subject: Re: [PATCH] ia64: SN specific version of dma_get_required_mask()

* John Keller [2008-11-17 10:24]:
>
> Create a platform specific version of dma_get_required_mask()
> for ia64 SN Altix. All SN Altix platforms support 64 bit DMA
> addressing regardless of the size of system memory.
> Create a ia64 machvec for dma_get_required_mask, with the
> SN version unconditionally returning DMA_64BIT_MASK.

Maybe we should then switch the ia64_platform_is("sn2")
in check_crashkernel_memory() to dma_get_required_mask() ==
DMA_64BIT_MASK because that's basically what the check is about.

BTW: What about UV?


Regards,
Bernhard
-- 
Bernhard Walle, SUSE Linux Products GmbH, Architecture Development
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