1 // SPDX-License-Identifier: GPL-2.0
30 	int ret = -ENODEV;  in probe_current_pmu()
34 	for (; info->init != NULL; info++) {  in probe_current_pmu()
35 		if ((cpuid & info->mask) != info->cpuid)  in probe_current_pmu()
37 		ret = info->init(pmu);  in probe_current_pmu()
48 	struct pmu_hw_events __percpu *hw_events = pmu->hw_events;  in pmu_parse_percpu_irq()
50 	ret = irq_get_percpu_devid_partition(irq, &pmu->supported_cpus);  in pmu_parse_percpu_irq()
54 	for_each_cpu(cpu, &pmu->supported_cpus)  in pmu_parse_percpu_irq()
55 		per_cpu(hw_events->irq, cpu) = irq;  in pmu_parse_percpu_irq()
62 	return !!of_find_property(node, "interrupt-affinity", NULL);  in pmu_has_irq_affinity()
71 	 * If we don't have an interrupt-affinity property, we guess irq  in pmu_parse_irq_affinity()
72 	 * affinity matches our logical CPU order, as we used to assume.  in pmu_parse_irq_affinity()
75 	if (!pmu_has_irq_affinity(dev->of_node))  in pmu_parse_irq_affinity()
78 	dn = of_parse_phandle(dev->of_node, "interrupt-affinity", i);  in pmu_parse_irq_affinity()
80 		dev_warn(dev, "failed to parse interrupt-affinity[%d]\n", i);  in pmu_parse_irq_affinity()
81 		return -EINVAL;  in pmu_parse_irq_affinity()
98 	struct platform_device *pdev = pmu->plat_device;  in pmu_parse_irqs()
99 	struct pmu_hw_events __percpu *hw_events = pmu->hw_events;  in pmu_parse_irqs()
100 	struct device *dev = &pdev->dev;  in pmu_parse_irqs()
112 		pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;  in pmu_parse_irqs()
113 		cpumask_setall(&pmu->supported_cpus);  in pmu_parse_irqs()
123 	if (nr_cpu_ids != 1 && !pmu_has_irq_affinity(dev->of_node))  in pmu_parse_irqs()
124 		dev_warn(dev, "no interrupt-affinity property, guessing.\n");  in pmu_parse_irqs()
135 			return -EINVAL;  in pmu_parse_irqs()
144 		if (per_cpu(hw_events->irq, cpu)) {  in pmu_parse_irqs()
146 			return -EINVAL;  in pmu_parse_irqs()
149 		per_cpu(hw_events->irq, cpu) = irq;  in pmu_parse_irqs()
150 		cpumask_set_cpu(cpu, &pmu->supported_cpus);  in pmu_parse_irqs()
158 	struct pmu_hw_events __percpu *hw_events = armpmu->hw_events;  in armpmu_request_irqs()
161 	for_each_cpu(cpu, &armpmu->supported_cpus) {  in armpmu_request_irqs()
162 		int irq = per_cpu(hw_events->irq, cpu);  in armpmu_request_irqs()
177 	struct pmu_hw_events __percpu *hw_events = armpmu->hw_events;  in armpmu_free_irqs()
179 	for_each_cpu(cpu, &armpmu->supported_cpus) {  in armpmu_free_irqs()
180 		int irq = per_cpu(hw_events->irq, cpu);  in armpmu_free_irqs()
191 	struct device *dev = &pdev->dev;  in arm_pmu_device_probe()
193 	int ret = -ENODEV;  in arm_pmu_device_probe()
197 		return -ENOMEM;  in arm_pmu_device_probe()
199 	pmu->plat_device = pdev;  in arm_pmu_device_probe()
207 		pmu->secure_access = of_property_read_bool(dev->of_node,  in arm_pmu_device_probe()
208 							   "secure-reg-access");  in arm_pmu_device_probe()
210 		/* arm64 systems boot only as non-secure */  in arm_pmu_device_probe()
211 		if (IS_ENABLED(CONFIG_ARM64) && pmu->secure_access) {  in arm_pmu_device_probe()
212 			dev_warn(dev, "ignoring \"secure-reg-access\" property for arm64\n");  in arm_pmu_device_probe()
213 			pmu->secure_access = false;  in arm_pmu_device_probe()
218 		cpumask_setall(&pmu->supported_cpus);  in arm_pmu_device_probe()