From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Ralph Blach <rcblach@raleigh.ibm.com>
Cc: <paulus@samba.org>, <linuxppc-dev@lists.linuxppc.org>
Subject: Re: pci_dma_sync_single
Date: Tue, 16 Oct 2001 16:08:16 +0200 [thread overview]
Message-ID: <20011016140816.2321@smtp.adsl.oleane.com> (raw)
In-Reply-To: <3BCC324C.9EE9C105@raleigh.ibm.com>
>This would probably work, except on Book E platforms, where DR off
>simpley gets you another translaton and NOT
>a physical address.
Well, the last time we discussed about book E, the idea was to use
1:1 translations with DR off that mimmics a physical addressing
(which has also the nice side effect of beeing able to build those
translations on the fly from the TLB miss handler without having to
dig into the page tables).
Ben.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-10-16 14:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-16 12:03 pci_dma_sync_single Paul Mackerras
2001-10-16 13:12 ` pci_dma_sync_single Ralph Blach
2001-10-16 14:08 ` Benjamin Herrenschmidt [this message]
2001-10-20 2:04 ` pci_dma_sync_single Dan Malek
2001-10-17 1:47 ` pci_dma_sync_single Paul Mackerras
2001-10-17 14:26 ` pci_dma_sync_single Tom Rini
2001-10-17 14:34 ` pci_dma_sync_single Ralph Blach
2001-10-20 2:13 ` pci_dma_sync_single Dan Malek
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