From: "David S. Miller" <davem@redhat.com>
To: Andi Kleen <ak@suse.de>
Cc: torvalds@osdl.org, linux-kernel@vger.kernel.org, richard.brunner@amd.com
Subject: Re: IOMMUs was Re: Intel vs AMD x86-64
Date: Tue, 24 Feb 2004 10:41:06 -0800 [thread overview]
Message-ID: <20040224104106.31f63d10.davem@redhat.com> (raw)
In-Reply-To: <20040227022849.6d9f88ef.ak@suse.de>
On Fri, 27 Feb 2004 02:28:49 +0100
Andi Kleen <ak@suse.de> wrote:
> Also the other part of the dumbness is that the flush is global, not per mapping. I guess
> you don't have that problem on Sparc64.
Yes, we can per-page flush, but I don't use that feature at all since I do the "flush all when
wrap around IOMMU pte table" thing we're discussing. In fact there is no "global flush" so
what I have to do is use diagnostic accesses to the IOMMU TLB to kick out the entries one
by one.
next prev parent reply other threads:[~2004-02-24 18:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.44.0402231625220.9708-100000@chimarrao.boston.redhat.com.suse.lists.linux.kernel>
[not found] ` <Pine.LNX.4.58.0402231335430.3005@ppc970.osdl.org.suse.lists.linux.kernel>
[not found] ` <20040223134853.5947a414.davem@redhat.com.suse.lists.linux.kernel>
[not found] ` <Pine.LNX.4.58.0402231359280.3005@ppc970.osdl.org.suse.lists.linux.kernel>
2004-02-24 14:06 ` IOMMUs was Re: Intel vs AMD x86-64 Andi Kleen
2004-02-24 18:13 ` David S. Miller
2004-02-27 1:28 ` Andi Kleen
2004-02-24 18:41 ` David S. Miller [this message]
2004-02-25 0:36 ` Benjamin Herrenschmidt
2004-02-24 15:50 richard.brunner
2004-02-24 16:27 ` Mike Fedyk
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