From: David Miller <davem@davemloft.net>
To: mb@bu3sch.de
Cc: andi@firstfloor.org, linux-kernel@vger.kernel.org,
vojtech@suse.cz, muli@il.ibm.com, jdmason@kudzu.us,
tglx@linutronix.de, mingo@redhat.com
Subject: Re: [PATCH RFC] x86: Fix 64-bit DMA masks on VIA
Date: Thu, 24 Apr 2008 07:18:35 -0700 (PDT) [thread overview]
Message-ID: <20080424.071835.06112189.davem@davemloft.net> (raw)
In-Reply-To: <200804241606.00883.mb@bu3sch.de>
From: Michael Buesch <mb@bu3sch.de>
Date: Thu, 24 Apr 2008 16:06:00 +0200
> Why do we need to workaround this in _every_ driver? (Note that _every_
> driver supporting a 64bit mask is affected). Why not fix it in the DMA layer?
Because the driver has to make a conscious choice of what
DMA mask it wants to use. Datastructures can change based
upon whether 32-bit or 64-bit DMA is available, etc.
next prev parent reply other threads:[~2008-04-24 14:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-23 18:55 Michael Buesch
2008-04-24 13:43 ` Andi Kleen
2008-04-24 14:06 ` Michael Buesch
2008-04-24 14:12 ` Andi Kleen
2008-04-24 14:18 ` David Miller [this message]
2008-04-24 14:32 ` Alan Cox
2008-04-24 15:19 ` Michael Buesch
2008-04-28 16:53 ` Ingo Molnar
2008-04-28 17:04 ` Jesse Barnes
2008-04-28 21:48 ` Michael Buesch
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