From: Dan Malek <dan@embeddededge.com>
To: Jeremy Rosen <Jeremy.Rosen@au.thalesgroup.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: Workaround for USB DMA bugs
Date: Thu, 04 Apr 2002 01:16:46 -0500 [thread overview]
Message-ID: <3CABEFCE.8050006@embeddededge.com> (raw)
In-Reply-To: scac60f5.069@au.thalesgroup.com
Jeremy Rosen wrote:
> can't we use the __GFP_DMA flag to specify that the area must have
> algnment enforced ?
Maybe, but that isn't its intended use.
> or did I misunderstand the use of this flag ?
This flag is used on architectures that have memory only accessible
from the processor, not from a DMA device, to ensure a DMA device
gets a memory bank that it can access.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-04-04 6:16 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-04 4:19 Workaround for USB DMA bugs Jeremy Rosen
2002-04-04 6:16 ` Dan Malek [this message]
2002-04-04 6:32 ` David Gibson
-- strict thread matches above, loose matches on Subject: below --
2002-04-04 6:40 Rosen Jeremy
2002-04-04 6:52 ` David Gibson
2002-04-03 2:43 David Gibson
2002-04-03 8:17 ` Armin
2002-04-03 17:39 ` Frank Rowand
2002-04-03 17:49 ` Dan Malek
2002-04-03 20:43 ` David Blythe
2002-04-03 23:34 ` David Gibson
2002-04-03 9:45 ` "David Müller (ELSOFT AG)"
2002-04-03 23:35 ` David Gibson
2002-04-03 17:42 ` Dan Malek
2002-04-03 23:40 ` David Gibson
2002-04-04 2:54 ` Dan Malek
2002-04-04 3:48 ` David Gibson
2002-04-04 4:09 ` Dan Malek
2002-04-04 5:23 ` David Gibson
2002-04-04 6:08 ` Dan Malek
2002-04-04 6:30 ` David Gibson
2002-04-04 20:21 ` David Blythe
2002-04-04 12:35 ` Brad Parker
2002-04-04 14:12 ` Dan Malek
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