From: David Miller <davem@davemloft.net>
To: jeff@garzik.org
Cc: mchan@broadcom.com, netdev@vger.kernel.org
Subject: Re: [PATCH 3/20][BNX2]: Add 40-bit DMA workaround for 5708.
Date: Wed, 02 May 2007 00:12:43 -0700 (PDT) [thread overview]
Message-ID: <20070502.001243.70193466.davem@davemloft.net> (raw)
In-Reply-To: <46383883.8070209@garzik.org>
From: Jeff Garzik <jeff@garzik.org>
Date: Wed, 02 May 2007 03:06:43 -0400
> Second, CONFIG_HIGHMEM is a bad test for IOMMU presence. I don't
> think you /can/ test for IOMMU presence. Maybe DaveM knows a way
> that I do not?
You really can't.
We have platforms that are both IOMMU and non-IOMMU for the same
configuration, it isn't known until run-time.
next prev parent reply other threads:[~2007-05-02 7:12 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-02 1:13 [PATCH 3/20][BNX2]: Add 40-bit DMA workaround for 5708 Michael Chan
2007-05-02 7:06 ` Jeff Garzik
2007-05-02 7:12 ` David Miller [this message]
2007-05-02 15:23 ` Michael Chan
2007-05-02 15:28 ` Christoph Hellwig
2007-05-02 15:29 ` Jeff Garzik
2007-05-02 18:23 ` Michael Chan
2007-05-02 18:24 ` Jeff Garzik
2007-05-02 20:02 ` Michael Chan
2007-05-02 20:30 ` Jeff Garzik
2007-05-02 22:48 ` Christoph Hellwig
2007-05-02 22:50 ` David Miller
2007-05-02 19:40 ` David Miller
2007-05-02 21:27 ` Michael Chan
2007-05-02 21:45 ` David Miller
2007-05-02 23:28 ` Michael Chan
2007-05-02 22:48 ` David Miller
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