On x86 PCI Config space access to domains/segments > 0 appears to be broken. The noted patch related to PCI ext config space has all config accesses to offsets < 256 using conf1 if available, which is most likely the case. This would force usage of conf1 for non-extended config access (< 256) on PCI domains > 0. Am I missing something, or how would a conf1 access reference a domain other than zero? John ------------ http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=b6ce068a1285a24185b01be8a49021827516b3e1 int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn, int reg, int len, u32 *val) { if (reg < 256 && raw_pci_ops) return raw_pci_ops->read(domain, bus, devfn, reg, len, val); if (raw_pci_ext_ops) return raw_pci_ext_ops->read(domain, bus, devfn, reg, len, val); return -EINVAL; } int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn, int reg, int len, u32 val) { if (reg < 256 && raw_pci_ops) return raw_pci_ops->write(domain, bus, devfn, reg, len, val); if (raw_pci_ext_ops) return raw_pci_ext_ops->write(domain, bus, devfn, reg, len, val); return -EINVAL; } -- 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
