From: "Adam J. Richter" <adam@yggdrasil.com>
Date: Tue, 5 Mar 2002 09:08:20 -0800
Message-Id: <200203051708.JAA05742@adam.yggdrasil.com>
To: sp@scali.com
Subject: Re: Does kmalloc always return address below 4GB?
Cc: davem@redhat.com, linux-kernel@vger.kernel.org
Sender: linux-kernel-owner@vger.kernel.org

Steffen Persvold writes:
>I know pci_map_single (and _sg) will
>use bounce buffers on platforms without an IOMMU [...]

	For a moment I thought that must be the point that I
was missing, but I don't see any such bounce buffer support
in linux-2.5.6-pre2/include/asm-i386/pci.h or arch/i386/kernel/pci-dma.c.
I do not see how this is currently implemented on x86 systems with >4GB
of RAM.

	Or, by "will use" did you mean "will implement in the future?"

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