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Re: Alchemy DMA and GFP_DMA

To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Subject: Re: Alchemy DMA and GFP_DMA
From: Ralf Baechle <ralf@linux-mips.org>
Date: Sun, 26 Aug 2007 16:36:28 +0100
Cc: linux-mips@linux-mips.org
In-reply-to: <46D192C9.7070208@ru.mvista.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20070816110501.GA5701@linux-mips.org> <46D192C9.7070208@ru.mvista.com>
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User-agent: Mutt/1.5.14 (2007-02-12)
On Sun, Aug 26, 2007 at 06:48:41PM +0400, Sergei Shtylyov wrote:

>     Those are probably still necessary because the DBDMA descriptors 
>     itselves (not the data they address) must have 32-bit addresses.

A normla GFP_KERNEL allocation will give you that.

  Ralf

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