On Wed, Jan 20, 2016 at 11:13:04AM -0500, Sinan Kaya wrote: > On 1/20/2016 11:04 AM, Lorenzo Pieralisi wrote: > > > > We want to get rid of PCI_PROBE_ONLY on ARM/ARM64: > > For platforms that does not have UEFI BIOS, it makes sense to remove the probe only > option as the firmware is not doing anything. I don't understand this statement. It sounds like you mean "non-UEFI BIOS firmware doesn't assign PCI BARs", but that's not true, so you must mean something else. > For server like arm64 platforms, the behavior should be identical to > x86 world. > The UEFI BIOS sets up the resources, kernel uses the resources. Is there actually a requirement that a UEFI BIOS assign resources to PCI BARs? I know that historically, x86 BIOS has set up most or all PCI BARs. But I thought there was something in UEFI that relaxed that, so it would only have to program BARs for the boot and console devices it actually needed. But I can't find a spec reference either way. Bjorn -- 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
