/* Clear any PCI parity errors logged by this device. */
static void edac_pci_dev_parity_clear(struct pci_dev *dev)
{
	u8 header_type;

	get_pci_parity_status(dev, 0);

	/* read the device TYPE, looking for bridges */
	pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type);

	if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE)
		get_pci_parity_status(dev, 1);
}
示例#2
0
/*
 *  PCI Parity polling
 *
 *	Fucntion to retrieve the current parity status
 *	and decode it
 *
 */
static void edac_pci_dev_parity_test(struct pci_dev *dev)
{
	unsigned long flags;
	u16 status;
	u8 header_type;

	/* stop any interrupts until we can acquire the status */
	local_irq_save(flags);

	/* read the STATUS register on this device */
	status = get_pci_parity_status(dev, 0);

	/* read the device TYPE, looking for bridges */
	pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type);

	local_irq_restore(flags);

	debugf4("PCI STATUS= 0x%04x %s\n", status, dev_name(&dev->dev));

	/* check the status reg for errors on boards NOT marked as broken
	 * if broken, we cannot trust any of the status bits
	 */
	if (status && !dev->broken_parity_status) {
		if (status & (PCI_STATUS_SIG_SYSTEM_ERROR)) {
			edac_printk(KERN_CRIT, EDAC_PCI,
				"Signaled System Error on %s\n",
				pci_name(dev));
			atomic_inc(&pci_nonparity_count);
		}

		if (status & (PCI_STATUS_PARITY)) {
			edac_printk(KERN_CRIT, EDAC_PCI,
				"Master Data Parity Error on %s\n",
				pci_name(dev));

			atomic_inc(&pci_parity_count);
		}

		if (status & (PCI_STATUS_DETECTED_PARITY)) {
			edac_printk(KERN_CRIT, EDAC_PCI,
				"Detected Parity Error on %s\n",
				pci_name(dev));

			atomic_inc(&pci_parity_count);
		}
	}


	debugf4("PCI HEADER TYPE= 0x%02x %s\n", header_type, dev_name(&dev->dev));

	if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) {
		/* On bridges, need to examine secondary status register  */
		status = get_pci_parity_status(dev, 1);

		debugf4("PCI SEC_STATUS= 0x%04x %s\n", status, dev_name(&dev->dev));

		/* check the secondary status reg for errors,
		 * on NOT broken boards
		 */
		if (status && !dev->broken_parity_status) {
			if (status & (PCI_STATUS_SIG_SYSTEM_ERROR)) {
				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
					"Signaled System Error on %s\n",
					pci_name(dev));
				atomic_inc(&pci_nonparity_count);
			}

			if (status & (PCI_STATUS_PARITY)) {
				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
					"Master Data Parity Error on "
					"%s\n", pci_name(dev));

				atomic_inc(&pci_parity_count);
			}

			if (status & (PCI_STATUS_DETECTED_PARITY)) {
				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
					"Detected Parity Error on %s\n",
					pci_name(dev));

				atomic_inc(&pci_parity_count);
			}
		}
	}
}
示例#3
0
/*
 *  PCI Parity polling
 *
 */
static void edac_pci_dev_parity_test(struct pci_dev *dev)
{
	u16 status;
	u8  header_type;

	/* read the STATUS register on this device
	 */
	status = get_pci_parity_status(dev, 0);

	debugf2("PCI STATUS= 0x%04x %s\n", status, dev->dev.bus_id );

	/* check the status reg for errors */
	if (status) {
		if (status & (PCI_STATUS_SIG_SYSTEM_ERROR))
			edac_printk(KERN_CRIT, EDAC_PCI,
				"Signaled System Error on %s\n",
				pci_name(dev));

		if (status & (PCI_STATUS_PARITY)) {
			edac_printk(KERN_CRIT, EDAC_PCI,
				"Master Data Parity Error on %s\n",
				pci_name(dev));

			atomic_inc(&pci_parity_count);
		}

		if (status & (PCI_STATUS_DETECTED_PARITY)) {
			edac_printk(KERN_CRIT, EDAC_PCI,
				"Detected Parity Error on %s\n",
				pci_name(dev));

			atomic_inc(&pci_parity_count);
		}
	}

	/* read the device TYPE, looking for bridges */
	pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type);

	debugf2("PCI HEADER TYPE= 0x%02x %s\n", header_type, dev->dev.bus_id );

	if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) {
		/* On bridges, need to examine secondary status register  */
		status = get_pci_parity_status(dev, 1);

		debugf2("PCI SEC_STATUS= 0x%04x %s\n",
				status, dev->dev.bus_id );

		/* check the secondary status reg for errors */
		if (status) {
			if (status & (PCI_STATUS_SIG_SYSTEM_ERROR))
				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
					"Signaled System Error on %s\n",
					pci_name(dev));

			if (status & (PCI_STATUS_PARITY)) {
				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
					"Master Data Parity Error on "
					"%s\n", pci_name(dev));

				atomic_inc(&pci_parity_count);
			}

			if (status & (PCI_STATUS_DETECTED_PARITY)) {
				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
					"Detected Parity Error on %s\n",
					pci_name(dev));

				atomic_inc(&pci_parity_count);
			}
		}
	}
}