VIA8237_CFG_PIR
((pci_conf_read((ph)->ph_pc, (ph)->ph_tag, VIA8237_CFG_PIR) \
pci_conf_write((ph)->ph_pc, (ph)->ph_tag, VIA8237_CFG_PIR, \
(pci_conf_read((ph)->ph_pc, (ph)->ph_tag, VIA8237_CFG_PIR) \
((pci_conf_read((ph)->ph_pc, (ph)->ph_tag, VIA8237_CFG_PIR) \
pci_conf_write((ph)->ph_pc, (ph)->ph_tag, VIA8237_CFG_PIR, \
(pci_conf_read((ph)->ph_pc, (ph)->ph_tag, VIA8237_CFG_PIR) \