From: Alok Kataria <akataria@vmware.com>
Date: Tue, 15 Jul 2008 18:59:42 +0000 (-0700)
Subject: x86/PCI: ACPI based PCI gap calculation
X-Git-Tag: v2.6.27-rc1~1046^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=809d9a8f93bd8504dcc34b16bbfdfd1a8c9bb1ed;p=pandora-kernel.git

x86/PCI: ACPI based PCI gap calculation

Using ACPI to find free address space allows us to find a gap for the
unallocated PCI resources or MMIO resources for hotplug devices within
the BIOS allowed PCI regions.

It works by evaluating the _CRS object under PCI0 looking for producer
resources.  Then searches the e820 memory space for a gap within these
producer resources.

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---

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