3 // NI-700 Network-on-Chip PMU driver
225 	struct arm_ni *ni = cd_to_ni(pmu_to_cd(dev_get_drvdata(dev)));  in arm_ni_cpumask_show()  local
227 	return cpumap_print_to_pagebuf(true, buf, cpumask_of(ni->cpu));  in arm_ni_cpumask_show()
236 	struct arm_ni *ni = cd_to_ni(pmu_to_cd(dev_get_drvdata(dev)));  in arm_ni_identifier_show()  local
237 	u32 reg = readl_relaxed(ni->base + NI_PERIPHERAL_ID2);  in arm_ni_identifier_show()
240 	return sysfs_emit(buf, "%03x%02x\n", ni->part, version);  in arm_ni_identifier_show()
479 static int arm_ni_init_cd(struct arm_ni *ni, struct arm_ni_node *node, u64 res_start)  in arm_ni_init_cd()  argument
481 	struct arm_ni_cd *cd = ni->cds + node->id;  in arm_ni_init_cd()
486 	cd->units = devm_kcalloc(ni->dev, cd->num_units, sizeof(*(cd->units)), GFP_KERNEL);  in arm_ni_init_cd()
492 		void __iomem *unit_base = ni->base + reg;  in arm_ni_init_cd()
503 				dev_info(ni->dev, "No access to PMU %d\n", cd->id);  in arm_ni_init_cd()
504 				devm_kfree(ni->dev, cd->units);  in arm_ni_init_cd()
518 				dev_info(ni->dev, "No access to node 0x%04x%04x\n", unit->id, unit->type);  in arm_ni_init_cd()
527 			dev_dbg(ni->dev, "Mystery node 0x%04x%04x\n", unit->id, unit->type);  in arm_ni_init_cd()
532 	res_start += cd->pmu_base - ni->base;  in arm_ni_init_cd()
533 	if (!devm_request_mem_region(ni->dev, res_start, SZ_4K, dev_name(ni->dev))) {  in arm_ni_init_cd()
534 		dev_err(ni->dev, "Failed to request PMU region 0x%llx\n", res_start);  in arm_ni_init_cd()
543 	cd->irq = platform_get_irq(to_platform_device(ni->dev), cd->id);  in arm_ni_init_cd()
549 		.parent = ni->dev,  in arm_ni_init_cd()
563 	name = devm_kasprintf(ni->dev, GFP_KERNEL, "arm_ni_%d_cd_%d", ni->id, cd->id);  in arm_ni_init_cd()
572 	struct arm_ni *ni = platform_get_drvdata(pdev);  in arm_ni_remove()  local
574 	ni_for_each_cd(ni, cd) {  in arm_ni_remove()
579 	cpuhp_state_remove_instance_nocalls(arm_ni_hp_state, &ni->cpuhp_node);  in arm_ni_remove()
592 static int arm_ni_init_irqs(struct arm_ni *ni)  in arm_ni_init_irqs()  argument
596 	ni_for_each_cd(ni, cd) {  in arm_ni_init_irqs()
597 		for (struct arm_ni_cd *prev = cd; prev-- > ni->cds; ) {  in arm_ni_init_irqs()
603 		err = devm_request_irq(ni->dev, cd->irq, arm_ni_handle_irq,  in arm_ni_init_irqs()
605 				       dev_name(ni->dev), cd);  in arm_ni_init_irqs()
609 		irq_set_affinity(cd->irq, cpumask_of(ni->cpu));  in arm_ni_init_irqs()
614 	ni_for_each_cd(ni, cd)  in arm_ni_init_irqs()
623 	struct arm_ni *ni;  in arm_ni_probe()  local
669 	ni = devm_kzalloc(&pdev->dev, struct_size(ni, cds, num_cds), GFP_KERNEL);  in arm_ni_probe()
670 	if (!ni)  in arm_ni_probe()
673 	ni->dev = &pdev->dev;  in arm_ni_probe()
674 	ni->base = base;  in arm_ni_probe()
675 	ni->num_cds = num_cds;  in arm_ni_probe()
676 	ni->part = part;  in arm_ni_probe()
677 	ni->id = atomic_fetch_inc(&id);  in arm_ni_probe()
678 	ni->cpu = cpumask_local_spread(0, dev_to_node(ni->dev));  in arm_ni_probe()
679 	platform_set_drvdata(pdev, ni);  in arm_ni_probe()
681 	ret = cpuhp_state_add_instance_nocalls(arm_ni_hp_state, &ni->cpuhp_node);  in arm_ni_probe()
694 				ret = arm_ni_init_cd(ni, &cd, res->start);  in arm_ni_probe()
696 					ni->cds[cd.id].pmu_base = NULL;  in arm_ni_probe()
704 	ret = arm_ni_init_irqs(ni);  in arm_ni_probe()
713 	{ .compatible = "arm,ni-700" },
729 		.name = "arm-ni",
738 static void arm_ni_pmu_migrate(struct arm_ni *ni, unsigned int cpu)  in arm_ni_pmu_migrate()  argument
740 	ni_for_each_cd(ni, cd) {  in arm_ni_pmu_migrate()
741 		perf_pmu_migrate_context(&cd->pmu, ni->cpu, cpu);  in arm_ni_pmu_migrate()
744 	ni->cpu = cpu;  in arm_ni_pmu_migrate()
749 	struct arm_ni *ni;  in arm_ni_pmu_online_cpu()  local
752 	ni = hlist_entry_safe(cpuhp_node, struct arm_ni, cpuhp_node);  in arm_ni_pmu_online_cpu()
753 	node = dev_to_node(ni->dev);  in arm_ni_pmu_online_cpu()
754 	if (cpu_to_node(ni->cpu) != node && cpu_to_node(cpu) == node)  in arm_ni_pmu_online_cpu()
755 		arm_ni_pmu_migrate(ni, cpu);  in arm_ni_pmu_online_cpu()
761 	struct arm_ni *ni;  in arm_ni_pmu_offline_cpu()  local
765 	ni = hlist_entry_safe(cpuhp_node, struct arm_ni, cpuhp_node);  in arm_ni_pmu_offline_cpu()
766 	if (cpu != ni->cpu)  in arm_ni_pmu_offline_cpu()
769 	node = dev_to_node(ni->dev);  in arm_ni_pmu_offline_cpu()
775 		arm_ni_pmu_migrate(ni, target);  in arm_ni_pmu_offline_cpu()
784 				      "perf/arm/ni:online",  in arm_ni_init()
808 MODULE_DESCRIPTION("Arm NI-700 PMU driver");