SV_DMAC_CONFIG_OFF
dmareg = pci_conf_read(pa->pa_pc, pa->pa_tag, SV_DMAC_CONFIG_OFF);
pci_conf_write (pa->pa_pc, pa->pa_tag, SV_DMAC_CONFIG_OFF,
pci_conf_write(pa->pa_pc, pa->pa_tag, SV_DMAC_CONFIG_OFF,
SV_DMAC_CONFIG_OFF,