From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Mon, 15 Oct 2012 17:19:34 +0000 (-0700)
Subject: swiotlb: Make io_tlb_overflow_buffer a physical address
X-Git-Tag: v3.8-rc1~88^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee3f6ba896c7e62004b677b0018a0b29b9b26472;p=pandora-kernel.git

swiotlb: Make io_tlb_overflow_buffer a physical address

This change makes it so that we can avoid virt_to_phys overhead when using the
io_tlb_overflow_buffer.  My original plan was to completely remove the value
and replace it with a constant but I had seen that there were recent patches
that stated this couldn't be done until all device drivers that depended on
that functionality be updated.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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