From: Bjorn Helgaas <bhelgaas@google.com>
Date: Fri, 24 Feb 2012 03:19:00 +0000 (-0700)
Subject: PCI: add struct pci_host_bridge_window with CPU/bus address offset
X-Git-Tag: v3.4-rc1~114^2~28^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0efd5aab41e18a1175f72641696cfda154ba6c87;p=pandora-kernel.git

PCI: add struct pci_host_bridge_window with CPU/bus address offset

Some PCI host bridges apply an address offset, so bus addresses on PCI are
different from CPU addresses.  This patch adds a way for architectures to
tell the PCI core about this offset.  For example:

    LIST_HEAD(resources);
    pci_add_resource_offset(&resources, host->io_space, host->io_offset);
    pci_add_resource_offset(&resources, host->mem_space, host->mem_offset);
    pci_scan_root_bus(parent, bus, ops, sysdata, &resources);

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---

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