On Thu, 2015-10-08 at 14:38 -0700, Yinghai Lu wrote: > On one system found strang "no compatible bridge window" warning > > PCI: Claiming 0000:00:01.0: Resource 14: 0002000100000000..000200010fffffff [10220c] > PCI: Claiming 0000:01:00.0: Resource 1: 0002000100000000..000200010000ffff [100214] > pci 0000:01:00.0: can't claim BAR 1 [mem 0x2000100000000-0x200010000ffff 64bit]: no compatible bridge window > > and we already had pref_compat support that add extra pref bit for device > resource. > > It turns out that pci_resource_compatible()/pci_up_path_over_pref_mem64() > just check resource with bridge pref mmio register idx 15, and we have put > resource to use mmio register idx 14 during of_scan_pci_bridge() > as the bridge does not mmio resource. > > We already fix pci_up_path_over_pref_mem64() to check all bus resources. > > And at the same time, this patch will make resource to consistent sequence > like other arch or directly from pci_read_bridge_bases(), > even non-pref mmio is missing, or out of ordering in firmware reporting. > > So hold i = 1 for non pref mmio, and i =2 for pref mmio. > > Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx> Tested on sparc platforms Tested-by: Khalid Aziz <khalid.aziz@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
