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authorAlok Kataria <akataria@vmware.com>2008-07-15 14:59:42 -0400
committerJesse Barnes <jbarnes@virtuousgeek.org>2008-07-15 18:49:03 -0400
commit809d9a8f93bd8504dcc34b16bbfdfd1a8c9bb1ed (patch)
tree52a090a2a10a126f3b4762fd6c98d58f5441a6d0 /drivers/pci/hotplug/pciehp.h
parentc300bd2fb583afb6d68804afd38bc90b31310d95 (diff)
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>
Diffstat (limited to 'drivers/pci/hotplug/pciehp.h')
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