From: David S. Miller <davem@sunset.davemloft.net>
Date: Fri, 14 Oct 2005 05:15:24 +0000 (-0700)
Subject: [SPARC64]: Eliminate PCI IOMMU dma mapping size limit.
X-Git-Tag: v2.6.14-rc5~43^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=688cb30bdc3e398d97682a6a58f825821ee838c2;p=pandora-kernel.git

[SPARC64]: Eliminate PCI IOMMU dma mapping size limit.

The hairy fast allocator in the sparc64 PCI IOMMU code
has a hard limit of 256 pages.  Certain devices can
exceed this when performing very large I/Os.

So replace with a more simple allocator, based largely
upon the arch/ppc64/kernel/iommu.c code.

Signed-off-by: David S. Miller <davem@davemloft.net>
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