On Wed, Apr 22, 2009 at 07:03:33PM -0700, Yinghai Lu wrote: > to check the BAR support 64bit or not should be read from > pci_read_bases and pci_bridge_read_bases... pci_read_bases: take a closer look at decode_bar() function and PCI_BASE_ADDRESS_MEM_TYPE_64 flag. pci_bridge_read_bases: we cannot rely on the bits 0-3 of PCI_PREF_MEMORY_BASE providing correct information anyway. More reliable check for 64-bitness would be a test for PCI_PREF_BASE_UPPER32 register being r/w, which I think belongs in pci_bridge_check_ranges(). Ivan. -- 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
