On Tue, Dec 18, 2007 at 12:22:34PM -0800, Richard Henderson wrote:
> On Tue, Dec 18, 2007 at 10:21:50AM -0800, Linus Torvalds wrote:
> > ... and that would be an X server issue!).
>
> Of course, fixing the X server to *handle* 64-bit BARs is the correct
> solution. I've no idea how involved that is, but I have a sneeking
> suspicion that it uses that damned CARD32 datatype for everything.
Doh. Let's fix the kernel first...
Does this make any difference? (the patch is self explaining ;-)
Ivan.
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -208,8 +208,9 @@ pci_setup_bridge(struct pci_bus *bus)
}
pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, l);
- /* Clear out the upper 32 bits of PREF base. */
- pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32, 0);
+ /* Set up the upper 32 bits of PREF base. */
+ l = region.start >> 16 >> 16;
+ pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32, l);
pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, bus->bridge_ctl);
}
--
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