在2025年1月14日一月 下午4:11，Maciej W. Rozycki写道： > On Tue, 14 Jan 2025, Arnd Bergmann wrote: > >> >> A quick fix would be #undef PCI_IOBASE in arch/mips/include/asm/io.h >> >> just after including #include <asm-generic/io.h>, with ralink and loongson64 >> >> as exception. >> > >> > Shouldn't arch/mips/include/asm/io.h do >> > >> > #define PCI_IOBASE mips_io_port_base >> > >> > unconditionally, _before_ including <asm-generic/io.h>? >> >> Yes, I think this would make the most sense, but the ordering >> with the PCI initialization needs to be done carefully, >> to ensure that PCI_IOBASE has its final value before the first >> call to pci_remap_iospace(). > > Is defining PCI_IOBASE going to do the right thing for non-PCI MIPS > platforms, or should the definition be #ifdef CONFIG_PCI rather than > unconditional? FWIW I think all PCI MIPS platforms support port I/O. I think the right thing to do is to unselect HAS_IOPORT for those platforms. Thanks > > Maciej -- - Jiaxun
