25 static int probe_current_pmu(struct arm_pmu *pmu,  in probe_current_pmu()  argument
32 	pr_info("probing PMU on CPU %d\n", cpu);  in probe_current_pmu()
37 		ret = info->init(pmu);  in probe_current_pmu()
45 static int pmu_parse_percpu_irq(struct arm_pmu *pmu, int irq)  in pmu_parse_percpu_irq()  argument
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()
95 static int pmu_parse_irqs(struct arm_pmu *pmu)  in pmu_parse_irqs()  argument
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()
104 		return dev_err_probe(dev, num_irqs, "unable to count PMU IRQs\n");  in pmu_parse_irqs()
107 	 * In this case we have no idea which CPUs are covered by the PMU.  in pmu_parse_irqs()
111 		dev_warn(dev, "no irqs for PMU, sampling events not supported\n");  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()
120 			return pmu_parse_percpu_irq(pmu, irq);  in pmu_parse_irqs()
145 			dev_warn(dev, "multiple PMU IRQs for the same CPU detected\n");  in pmu_parse_irqs()
150 		cpumask_set_cpu(cpu, &pmu->supported_cpus);  in pmu_parse_irqs()
192 	struct arm_pmu *pmu;  in arm_pmu_device_probe()  local
195 	pmu = armpmu_alloc();  in arm_pmu_device_probe()
196 	if (!pmu)  in arm_pmu_device_probe()
199 	pmu->plat_device = pdev;  in arm_pmu_device_probe()
201 	ret = pmu_parse_irqs(pmu);  in arm_pmu_device_probe()
207 		pmu->secure_access = of_property_read_bool(dev->of_node,  in arm_pmu_device_probe()
211 		if (IS_ENABLED(CONFIG_ARM64) && pmu->secure_access) {  in arm_pmu_device_probe()
213 			pmu->secure_access = false;  in arm_pmu_device_probe()
216 		ret = init_fn(pmu);  in arm_pmu_device_probe()
218 		cpumask_setall(&pmu->supported_cpus);  in arm_pmu_device_probe()
219 		ret = probe_current_pmu(pmu, probe_table);  in arm_pmu_device_probe()
223 		dev_err(dev, "failed to probe PMU!\n");  in arm_pmu_device_probe()
227 	ret = armpmu_request_irqs(pmu);  in arm_pmu_device_probe()
231 	ret = armpmu_register(pmu);  in arm_pmu_device_probe()
233 		dev_err(dev, "failed to register PMU devices!\n");  in arm_pmu_device_probe()
240 	armpmu_free_irqs(pmu);  in arm_pmu_device_probe()
242 	armpmu_free(pmu);  in arm_pmu_device_probe()