tree 1307d77ead535d134b6f62df53c923cf1247baa6
parent 06cf56e497c8c1469b0931caa7d5b1d827655fe2
author Bjorn Helgaas <bhelgaas@google.com> 1388798818 -0700
committer Bjorn Helgaas <bhelgaas@google.com> 1389055762 -0700

agp: Support 64-bit APBASE

Per the AGP 3.0 spec, APBASE is a standard PCI BAR and may be either 32
bits or 64 bits wide.  Many drivers read APBASE directly, but they only
handled 32-bit BARs.

The PCI core reads APBASE at enumeration-time.  Use pci_bus_address()
instead of reading it again in the driver.  This works correctly for both
32-bit and 64-bit BARs.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>