MCHBAR 536 drivers/thermal/intel/int340x_thermal/processor_thermal_device.c ret = pcim_iomap_regions(pdev, 1 << MCHBAR, DRV_NAME); MCHBAR 542 drivers/thermal/intel/int340x_thermal/processor_thermal_device.c proc_priv->mmio_base = pcim_iomap_table(pdev)[MCHBAR];