powerpc/eeh: Dump PCI config space for all child devices

 * not dynamically alloced, so that it ends up in RMO where RTAS

 * can access it.

 */

#define EEH_PCI_REGS_LOG_LEN 4096

#define EEH_PCI_REGS_LOG_LEN 8192

static unsigned char pci_regs_buf[EEH_PCI_REGS_LOG_LEN];

/*

}

__setup("eeh=", eeh_setup);

/**

 * eeh_gather_pci_data - Copy assorted PCI config space registers to buff

 * @edev: device to report data for

 * @buf: point to buffer in which to log

 * @len: amount of room in buffer

 *

 * This routine captures assorted PCI configuration space data,

 * and puts them into a buffer for RTAS error logging.

/*

 * This routine captures assorted PCI configuration space data

 * for the indicated PCI device, and puts them into a buffer

 * for RTAS error logging.

 */

static size_t eeh_gather_pci_data(struct eeh_dev *edev, char *buf, size_t len)

static size_t eeh_dump_dev_log(struct eeh_dev *edev, char *buf, size_t len)

{

	struct device_node *dn = eeh_dev_to_of_node(edev);

	u32 cfg;

	return n;

}

static void *eeh_dump_pe_log(void *data, void *flag)

{

	struct eeh_pe *pe = data;

	struct eeh_dev *edev, *tmp;

	size_t *plen = flag;

	eeh_pe_for_each_dev(pe, edev, tmp)

		*plen += eeh_dump_dev_log(edev, pci_regs_buf + *plen,

					  EEH_PCI_REGS_LOG_LEN - *plen);

	return NULL;

}

/**

 * eeh_slot_error_detail - Generate combined log including driver log and error log

 * @pe: EEH PE

void eeh_slot_error_detail(struct eeh_pe *pe, int severity)

{

	size_t loglen = 0;

	struct eeh_dev *edev, *tmp;

	/*

	 * When the PHB is fenced or dead, it's pointless to collect

		eeh_pe_restore_bars(pe);

		pci_regs_buf[0] = 0;

		eeh_pe_for_each_dev(pe, edev, tmp) {

			loglen += eeh_gather_pci_data(edev, pci_regs_buf + loglen,

						      EEH_PCI_REGS_LOG_LEN - loglen);

		}

		eeh_pe_traverse(pe, eeh_dump_pe_log, &loglen);

	}

	eeh_ops->get_log(pe, severity, pci_regs_buf, loglen);