Exemple #1
0
void *
pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
{
	int nasid, cnode, j;
	struct hubdev_info *hubdev_info;
	struct pcibus_info *soft;
	struct sn_flush_device_list *sn_flush_device_list;

	if (! IS_PCI_BRIDGE_ASIC(prom_bussoft->bs_asic_type)) {
		return NULL;
	}

	/*
	 * Allocate kernel bus soft and copy from prom.
	 */

	soft = kmalloc(sizeof(struct pcibus_info), GFP_KERNEL);
	if (!soft) {
		return NULL;
	}

	memcpy(soft, prom_bussoft, sizeof(struct pcibus_info));
	soft->pbi_buscommon.bs_base =
	    (((u64) soft->pbi_buscommon.
	      bs_base << 4) >> 4) | __IA64_UNCACHED_OFFSET;

	spin_lock_init(&soft->pbi_lock);

	/*
	 * register the bridge's error interrupt handler
	 */
	if (request_irq(SGI_PCIBR_ERROR, (void *)pcibr_error_intr_handler,
			SA_SHIRQ, "PCIBR error", (void *)(soft))) {
		printk(KERN_WARNING
		       "pcibr cannot allocate interrupt for error handler\n");
	}

	/* 
	 * Update the Bridge with the "kernel" pagesize 
	 */
	if (PAGE_SIZE < 16384) {
		pcireg_control_bit_clr(soft, PCIBR_CTRL_PAGE_SIZE);
	} else {
		pcireg_control_bit_set(soft, PCIBR_CTRL_PAGE_SIZE);
	}

	nasid = NASID_GET(soft->pbi_buscommon.bs_base);
	cnode = nasid_to_cnodeid(nasid);
	hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);

	if (hubdev_info->hdi_flush_nasid_list.widget_p) {
		sn_flush_device_list = hubdev_info->hdi_flush_nasid_list.
		    widget_p[(int)soft->pbi_buscommon.bs_xid];
		if (sn_flush_device_list) {
			for (j = 0; j < DEV_PER_WIDGET;
			     j++, sn_flush_device_list++) {
				if (sn_flush_device_list->sfdl_slot == -1)
					continue;
				if (sn_flush_device_list->
				    sfdl_persistent_busnum ==
				    soft->pbi_buscommon.bs_persist_busnum)
					sn_flush_device_list->sfdl_pcibus_info =
					    soft;
			}
		}
	}

	/* Setup the PMU ATE map */
	soft->pbi_int_ate_resource.lowest_free_index = 0;
	soft->pbi_int_ate_resource.ate =
	    kmalloc(soft->pbi_int_ate_size * sizeof(uint64_t), GFP_KERNEL);
	memset(soft->pbi_int_ate_resource.ate, 0,
 	       (soft->pbi_int_ate_size * sizeof(uint64_t)));

	if (prom_bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP)
		/*
		 * TIO PCI Bridge with no closest node information.
		 * FIXME: Find another way to determine the closest node
		 */
		controller->node = -1;
	else
		controller->node = cnode;
	return soft;
}
void *
pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
{
	int nasid, cnode, j;
	cnodeid_t near_cnode;
	struct hubdev_info *hubdev_info;
	struct pcibus_info *soft;
	struct sn_flush_device_kernel *sn_flush_device_kernel;
	struct sn_flush_device_common *common;

	if (! IS_PCI_BRIDGE_ASIC(prom_bussoft->bs_asic_type)) {
		return NULL;
	}

	/*
	 * Allocate kernel bus soft and copy from prom.
	 */

	soft = kmalloc(sizeof(struct pcibus_info), GFP_KERNEL);
	if (!soft) {
		return NULL;
	}

	memcpy(soft, prom_bussoft, sizeof(struct pcibus_info));
	soft->pbi_buscommon.bs_base =
	    (((u64) soft->pbi_buscommon.
	      bs_base << 4) >> 4) | __IA64_UNCACHED_OFFSET;

	spin_lock_init(&soft->pbi_lock);

	/*
	 * register the bridge's error interrupt handler
	 */
	if (request_irq(SGI_PCIASIC_ERROR, (void *)pcibr_error_intr_handler,
			IRQF_SHARED, "PCIBR error", (void *)(soft))) {
		printk(KERN_WARNING
		       "pcibr cannot allocate interrupt for error handler\n");
	}

	/* 
	 * Update the Bridge with the "kernel" pagesize 
	 */
	if (PAGE_SIZE < 16384) {
		pcireg_control_bit_clr(soft, PCIBR_CTRL_PAGE_SIZE);
	} else {
		pcireg_control_bit_set(soft, PCIBR_CTRL_PAGE_SIZE);
	}

	nasid = NASID_GET(soft->pbi_buscommon.bs_base);
	cnode = nasid_to_cnodeid(nasid);
	hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);

	if (hubdev_info->hdi_flush_nasid_list.widget_p) {
		sn_flush_device_kernel = hubdev_info->hdi_flush_nasid_list.
		    widget_p[(int)soft->pbi_buscommon.bs_xid];
		if (sn_flush_device_kernel) {
			for (j = 0; j < DEV_PER_WIDGET;
			     j++, sn_flush_device_kernel++) {
				common = sn_flush_device_kernel->common;
				if (common->sfdl_slot == -1)
					continue;
				if ((common->sfdl_persistent_segment ==
				     soft->pbi_buscommon.bs_persist_segment) &&
				     (common->sfdl_persistent_busnum ==
				     soft->pbi_buscommon.bs_persist_busnum))
					common->sfdl_pcibus_info =
					    soft;
			}
		}
	}

	/* Setup the PMU ATE map */
	soft->pbi_int_ate_resource.lowest_free_index = 0;
	soft->pbi_int_ate_resource.ate =
	    kzalloc(soft->pbi_int_ate_size * sizeof(u64), GFP_KERNEL);

	if (!soft->pbi_int_ate_resource.ate) {
		kfree(soft);
		return NULL;
	}

	if (prom_bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) {
		/* TIO PCI Bridge: find nearest node with CPUs */
		int e = sn_hwperf_get_nearest_node(cnode, NULL, &near_cnode);

		if (e < 0) {
			near_cnode = (cnodeid_t)-1; /* use any node */
			printk(KERN_WARNING "pcibr_bus_fixup: failed to find "
				"near node with CPUs to TIO node %d, err=%d\n",
				cnode, e);
		}
		controller->node = near_cnode;
	}
	else
		controller->node = cnode;
	return soft;
}
void *
pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
{
	int nasid, cnode, j;
	struct hubdev_info *hubdev_info;
	struct pcibus_info *soft;
	struct sn_flush_device_kernel *sn_flush_device_kernel;
	struct sn_flush_device_common *common;

	if (! IS_PCI_BRIDGE_ASIC(prom_bussoft->bs_asic_type)) {
		return NULL;
	}

	/*
	 * Allocate kernel bus soft and copy from prom.
	 */

	soft = kmalloc(sizeof(struct pcibus_info), GFP_KERNEL);
	if (!soft) {
		return NULL;
	}

	memcpy(soft, prom_bussoft, sizeof(struct pcibus_info));
	soft->pbi_buscommon.bs_base = (unsigned long)
		ioremap(REGION_OFFSET(soft->pbi_buscommon.bs_base),
			sizeof(struct pic));

	spin_lock_init(&soft->pbi_lock);

	/*
	 * register the bridge's error interrupt handler
	 */
	if (request_irq(SGI_PCIASIC_ERROR, pcibr_error_intr_handler,
			IRQF_SHARED, "PCIBR error", (void *)(soft))) {
		printk(KERN_WARNING
		       "pcibr cannot allocate interrupt for error handler\n");
	}
	sn_set_err_irq_affinity(SGI_PCIASIC_ERROR);

	/* 
	 * Update the Bridge with the "kernel" pagesize 
	 */
	if (PAGE_SIZE < 16384) {
		pcireg_control_bit_clr(soft, PCIBR_CTRL_PAGE_SIZE);
	} else {
		pcireg_control_bit_set(soft, PCIBR_CTRL_PAGE_SIZE);
	}

	nasid = NASID_GET(soft->pbi_buscommon.bs_base);
	cnode = nasid_to_cnodeid(nasid);
	hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);

	if (hubdev_info->hdi_flush_nasid_list.widget_p) {
		sn_flush_device_kernel = hubdev_info->hdi_flush_nasid_list.
		    widget_p[(int)soft->pbi_buscommon.bs_xid];
		if (sn_flush_device_kernel) {
			for (j = 0; j < DEV_PER_WIDGET;
			     j++, sn_flush_device_kernel++) {
				common = sn_flush_device_kernel->common;
				if (common->sfdl_slot == -1)
					continue;
				if ((common->sfdl_persistent_segment ==
				     soft->pbi_buscommon.bs_persist_segment) &&
				     (common->sfdl_persistent_busnum ==
				     soft->pbi_buscommon.bs_persist_busnum))
					common->sfdl_pcibus_info =
					    soft;
			}
		}
	}

	/* Setup the PMU ATE map */
	soft->pbi_int_ate_resource.lowest_free_index = 0;
	soft->pbi_int_ate_resource.ate =
	    kzalloc(soft->pbi_int_ate_size * sizeof(u64), GFP_KERNEL);

	if (!soft->pbi_int_ate_resource.ate) {
		kfree(soft);
		return NULL;
	}

	return soft;
}