31 	 * Per the ACPI spec, the MADT cannot describe a PMU that doesn't  in arm_pmu_acpi_register_irq()
87  * For lack of a better place, hook the normal PMU MADT walk
149 			pr_warn("Unable to parse ACPI PMU IRQ for CPU%d: %d\n",  in arm_pmu_acpi_parse_irqs()
153 			pr_warn("No ACPI PMU IRQ for CPU%d\n", cpu);  in arm_pmu_acpi_parse_irqs()
193 	struct arm_pmu *pmu;  in arm_pmu_acpi_find_alloc_pmu()  local
197 		pmu = per_cpu(probed_pmus, cpu);  in arm_pmu_acpi_find_alloc_pmu()
198 		if (!pmu || pmu->acpi_cpuid != cpuid)  in arm_pmu_acpi_find_alloc_pmu()
201 		return pmu;  in arm_pmu_acpi_find_alloc_pmu()
204 	pmu = armpmu_alloc_atomic();  in arm_pmu_acpi_find_alloc_pmu()
205 	if (!pmu) {  in arm_pmu_acpi_find_alloc_pmu()
206 		pr_warn("Unable to allocate PMU for CPU%d\n",  in arm_pmu_acpi_find_alloc_pmu()
211 	pmu->acpi_cpuid = cpuid;  in arm_pmu_acpi_find_alloc_pmu()
213 	return pmu;  in arm_pmu_acpi_find_alloc_pmu()
218  * the PMU (e.g. we don't have mismatched PPIs).
220 static bool pmu_irq_matches(struct arm_pmu *pmu, int irq)  in pmu_irq_matches()  argument
222 	struct pmu_hw_events __percpu *hw_events = pmu->hw_events;  in pmu_irq_matches()
228 	for_each_cpu(cpu, &pmu->supported_cpus) {  in pmu_irq_matches()
256 	struct arm_pmu *pmu;  in arm_pmu_acpi_cpu_starting()  local
266 	pmu = arm_pmu_acpi_find_alloc_pmu();  in arm_pmu_acpi_cpu_starting()
267 	if (!pmu)  in arm_pmu_acpi_cpu_starting()
270 	per_cpu(probed_pmus, cpu) = pmu;  in arm_pmu_acpi_cpu_starting()
272 	if (pmu_irq_matches(pmu, irq)) {  in arm_pmu_acpi_cpu_starting()
273 		hw_events = pmu->hw_events;  in arm_pmu_acpi_cpu_starting()
277 	cpumask_set_cpu(cpu, &pmu->supported_cpus);  in arm_pmu_acpi_cpu_starting()
280 	 * Ideally, we'd probe the PMU here when we find the first matching  in arm_pmu_acpi_cpu_starting()
302 	 * without tying this too deeply into the "real" PMU driver.  in arm_pmu_acpi_probe()
305 	 * of a PMU's CPUs to be online at probe time.  in arm_pmu_acpi_probe()
308 		struct arm_pmu *pmu = per_cpu(probed_pmus, cpu);  in arm_pmu_acpi_probe()  local
311 		if (!pmu || pmu->name)  in arm_pmu_acpi_probe()
314 		ret = init_fn(pmu);  in arm_pmu_acpi_probe()
316 			/* PMU not handled by this driver, or not present */  in arm_pmu_acpi_probe()
319 			pr_warn("Unable to initialise PMU for CPU%d\n", cpu);  in arm_pmu_acpi_probe()
323 		base_name = pmu->name;  in arm_pmu_acpi_probe()
324 		pmu->name = kasprintf(GFP_KERNEL, "%s_%d", base_name, pmu_idx++);  in arm_pmu_acpi_probe()
325 		if (!pmu->name) {  in arm_pmu_acpi_probe()
326 			pr_warn("Unable to allocate PMU name for CPU%d\n", cpu);  in arm_pmu_acpi_probe()
330 		ret = armpmu_register(pmu);  in arm_pmu_acpi_probe()
332 			pr_warn("Failed to register PMU for CPU%d\n", cpu);  in arm_pmu_acpi_probe()
333 			kfree(pmu->name);  in arm_pmu_acpi_probe()