1 /* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
42 /* protect qman global registers and global data shared among portals */
48 	struct device *dev = pcfg->dev;  in portal_set_cpu()
51 	pcfg->iommu_domain = iommu_paging_domain_alloc(dev);  in portal_set_cpu()
52 	if (IS_ERR(pcfg->iommu_domain)) {  in portal_set_cpu()
54 		pcfg->iommu_domain = NULL;  in portal_set_cpu()
57 	ret = fsl_pamu_configure_l1_stash(pcfg->iommu_domain, cpu);  in portal_set_cpu()
63 	ret = iommu_attach_device(pcfg->iommu_domain, dev);  in portal_set_cpu()
72 	qman_set_sdest(pcfg->channel, cpu);  in portal_set_cpu()
78 	iommu_domain_free(pcfg->iommu_domain);  in portal_set_cpu()
79 	pcfg->iommu_domain = NULL;  in portal_set_cpu()
88 	/* We need the same LIODN offset for all portals */  in init_pcfg()
89 	qman_liodn_fixup(pcfg->channel);  in init_pcfg()
91 	pcfg->iommu_domain = NULL;  in init_pcfg()
92 	portal_set_cpu(pcfg, pcfg->cpu);  in init_pcfg()
96 		dev_crit(pcfg->dev, "%s: Portal failure on cpu %d\n",  in init_pcfg()
97 			 __func__, pcfg->cpu);  in init_pcfg()
101 	/* Determine what should be interrupt-vs-poll driven */  in init_pcfg()
113 		/* all assigned portals are initialized now */  in init_pcfg()
122 	dev_info(pcfg->dev, "Portal initialised, cpu %d\n", pcfg->cpu);  in init_pcfg()
131 	if (pcfg->iommu_domain) {  in qman_portal_update_sdest()
132 		if (fsl_pamu_configure_l1_stash(pcfg->iommu_domain, cpu) < 0) {  in qman_portal_update_sdest()
133 			dev_err(pcfg->dev,  in qman_portal_update_sdest()
139 	qman_set_sdest(pcfg->channel, cpu);  in qman_portal_update_sdest()
153 			irq_set_affinity(pcfg->irq, cpumask_of(cpu));  in qman_offline_cpu()
169 			irq_set_affinity(pcfg->irq, cpumask_of(cpu));  in qman_online_cpu()
184 	struct device *dev = &pdev->dev;  in qman_portal_probe()
185 	struct device_node *node = dev->of_node;  in qman_portal_probe()
193 		return -EPROBE_DEFER;  in qman_portal_probe()
195 		dev_err(&pdev->dev, "failing probe due to qman probe error\n");  in qman_portal_probe()
196 		return -ENODEV;  in qman_portal_probe()
201 		__qman_portals_probed = -1;  in qman_portal_probe()
202 		return -ENOMEM;  in qman_portal_probe()
205 	pcfg->dev = dev;  in qman_portal_probe()
221 	err = of_property_read_u32(node, "cell-index", &val);  in qman_portal_probe()
223 		dev_err(dev, "Can't get %pOF property 'cell-index'\n", node);  in qman_portal_probe()
224 		__qman_portals_probed = -1;  in qman_portal_probe()
227 	pcfg->channel = val;  in qman_portal_probe()
228 	pcfg->cpu = -1;  in qman_portal_probe()
232 	pcfg->irq = irq;  in qman_portal_probe()
234 	pcfg->addr_virt_ce = memremap(addr_phys[0]->start,  in qman_portal_probe()
237 	if (!pcfg->addr_virt_ce) {  in qman_portal_probe()
242 	pcfg->addr_virt_ci = ioremap(addr_phys[1]->start,  in qman_portal_probe()
244 	if (!pcfg->addr_virt_ci) {  in qman_portal_probe()
249 	pcfg->pools = qm_get_pools_sdqcr();  in qman_portal_probe()
262 	pcfg->cpu = cpu;  in qman_portal_probe()
281 		 * QMan wasn't reset prior to boot (Kexec for example)  in qman_portal_probe()
298 	iounmap(pcfg->addr_virt_ci);  in qman_portal_probe()
300 	memunmap(pcfg->addr_virt_ce);  in qman_portal_probe()
302 	__qman_portals_probed = -1;  in qman_portal_probe()
304 	return -ENXIO;  in qman_portal_probe()
309 		.compatible = "fsl,qman-portal",
335 		pr_err("qman: failed to register hotplug callbacks.\n");  in qman_portal_driver_register()