Hi, Bjorn, On Sat, Jul 16, 2022 at 6:18 AM Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote: > > On Thu, Jul 14, 2022 at 08:42:09PM +0800, Huacai Chen wrote: > > This patchset improves Loongson PCI controller driver and resolves some > > problems: LS2K/LS7A's PCI config space supports 1/2/4-bytes access, so > > the first patch use pci_generic_config_read()/pci_generic_config_write() > > for them; the second patch add ACPI init support which will be used by > > LoongArch; the third patch improves the mrrs quirk for LS7A chipset; The > > fourth patch add a new quirk for LS7A chipset to avoid poweroff/reboot > > failure, and the fifth patch add a new quirk for LS7A chipset to fix the > > multifunction devices' irq pin mappings. > > ... > > > Huacai Chen, Tiezhu Yang and Jianmin Lv(6): > > PCI/ACPI: Guard ARM64-specific mcfg_quirks > > PCI: loongson: Use generic 8/16/32-bit config ops on LS2K/LS7A. > > PCI: loongson: Add ACPI init support. > > PCI: loongson: Don't access non-existant devices. > > PCI: Add quirk for multifunction devices of LS7A. > > I applied the above to pci/ctrl/loongson to get them out of the way. Thank you very much! > > > PCI: loongson: Improve the MRRS quirk for LS7A. > > PCI: Add quirk for LS7A to avoid reboot failure. > > These touch core code in some sort of ugly ways and I'm still thinking > about them. Yes, it is ugly, but I hope it can be solved in some way, at least the MRRS problem is not only Loongson-specific and can be shared by others. Huacai
