linux-kernel - Re: DMA APIs gumble grumble

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Message-Id: <1163131652.4982.103.camel@localhost.localdomain>
Date:	Fri, 10 Nov 2006 15:07:32 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	David Miller <davem@...emloft.net>
Cc:	linux-input@...ey.karlin.mff.cuni.cz, linux-kernel@...r.kernel.org,
	paulus@...ba.org, anton@...ba.org, greg@...ah.com
Subject: Re: DMA APIs gumble grumble


> I wish sparc32 hadn't used alloc_resource() as a poor-man's bitmap
> allocator to keep track of IOMMU mappings.  That's where the
> GFP_KERNEL requirement comes from.
> 
> Just use GFP_KERNEL for now, and someone might find the strength
> to remove this problem some day :-)

Well, Anton has a pile of sparc's in a closet... :-)

Ben.


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