1 // SPDX-License-Identifier: GPL-2.0
66 void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity)  in topology_set_cpu_scale()  argument
68 	per_cpu(cpu_scale, cpu) = capacity;  in topology_set_cpu_scale()
90 	return sysfs_emit(buf, "%lu\n", topology_get_cpu_scale(cpu->dev.id));  in cpu_capacity_show()
153 	u64 capacity;  in topology_normalize_cpu_scale()  local
162 		capacity = raw_capacity[cpu] * per_cpu(freq_factor, cpu);  in topology_normalize_cpu_scale()
163 		capacity_scale = max(capacity, capacity_scale);  in topology_normalize_cpu_scale()
168 		capacity = raw_capacity[cpu] * per_cpu(freq_factor, cpu);  in topology_normalize_cpu_scale()
169 		capacity = div64_u64(capacity << SCHED_CAPACITY_SHIFT,  in topology_normalize_cpu_scale()
171 		topology_set_cpu_scale(cpu, capacity);  in topology_normalize_cpu_scale()
187 	ret = of_property_read_u32(cpu_node, "capacity-dmips-mhz",  in topology_parse_cpu_capacity()
205 		 * For non-clk CPU DVFS mechanism, there's no way to get the  in topology_parse_cpu_capacity()
217 			pr_err("cpu_capacity: missing %pOF raw capacity\n",  in topology_parse_cpu_capacity()
247 	pr_debug("cpu_capacity: init cpu capacity for CPUs [%*pbl] (to_visit=%*pbl)\n",  in init_cpu_capacity_callback()
248 		 cpumask_pr_args(policy->related_cpus),  in init_cpu_capacity_callback()
251 	cpumask_andnot(cpus_to_visit, cpus_to_visit, policy->related_cpus);  in init_cpu_capacity_callback()
253 	for_each_cpu(cpu, policy->related_cpus)  in init_cpu_capacity_callback()
254 		per_cpu(freq_factor, cpu) = policy->cpuinfo.max_freq / 1000;  in init_cpu_capacity_callback()
276 	 * on ACPI-based systems we need to use the default cpu capacity  in register_cpufreq_notifier()
277 	 * until we have the necessary code to parse the cpu capacity, so  in register_cpufreq_notifier()
281 		return -EINVAL;  in register_cpufreq_notifier()
284 		return -ENOMEM;  in register_cpufreq_notifier()
314  * (2) -ENODEV when the device tree(DT) node is valid and found in the DT but
318  * (3) -1 if the node does not exist in the device tree
327 		return -1;  in get_cpu_for_node()
359 			} else if (cpu != -ENODEV) {  in parse_core()
362 				return -EINVAL;  in parse_core()
374 			return -EINVAL;  in parse_core()
379 	} else if (leaf && cpu != -ENODEV) {  in parse_core()
381 		return -EINVAL;  in parse_core()
425 				pr_err("%pOF: cpu-map children should be clusters\n",  in parse_cluster()
428 				return -EINVAL;  in parse_cluster()
434 				pr_err("%pOF: Non-leaf cluster with core %s\n",  in parse_cluster()
436 				ret = -EINVAL;  in parse_cluster()
468 	 * When topology is provided cpu-map is essentially a root  in parse_dt_topology()
471 	map = of_get_child_by_name(cn, "cpu-map");  in parse_dt_topology()
486 		if (cpu_topology[cpu].package_id == -1)  in parse_dt_topology()
487 			ret = -EINVAL;  in parse_dt_topology()
512 	if (cpu_topology[cpu].llc_id != -1) {  in cpu_coregroup_mask()
529 		if (cpu_topo->llc_id != -1 && cpuid_topo->llc_id == cpu_topo->llc_id) {  in update_siblings_masks()
530 			cpumask_set_cpu(cpu, &cpuid_topo->llc_sibling);  in update_siblings_masks()
531 			cpumask_set_cpu(cpuid, &cpu_topo->llc_sibling);  in update_siblings_masks()
534 		if (cpuid_topo->package_id != cpu_topo->package_id)  in update_siblings_masks()
537 		cpumask_set_cpu(cpuid, &cpu_topo->core_sibling);  in update_siblings_masks()
538 		cpumask_set_cpu(cpu, &cpuid_topo->core_sibling);  in update_siblings_masks()
540 		if (cpuid_topo->core_id != cpu_topo->core_id)  in update_siblings_masks()
543 		cpumask_set_cpu(cpuid, &cpu_topo->thread_sibling);  in update_siblings_masks()
544 		cpumask_set_cpu(cpu, &cpuid_topo->thread_sibling);  in update_siblings_masks()
552 	cpumask_clear(&cpu_topo->llc_sibling);  in clear_cpu_topology()
553 	cpumask_set_cpu(cpu, &cpu_topo->llc_sibling);  in clear_cpu_topology()
555 	cpumask_clear(&cpu_topo->core_sibling);  in clear_cpu_topology()
556 	cpumask_set_cpu(cpu, &cpu_topo->core_sibling);  in clear_cpu_topology()
557 	cpumask_clear(&cpu_topo->thread_sibling);  in clear_cpu_topology()
558 	cpumask_set_cpu(cpu, &cpu_topo->thread_sibling);  in clear_cpu_topology()
568 		cpu_topo->thread_id = -1;  in reset_cpu_topology()
569 		cpu_topo->core_id = -1;  in reset_cpu_topology()
570 		cpu_topo->package_id = -1;  in reset_cpu_topology()
571 		cpu_topo->llc_id = -1;  in reset_cpu_topology()
615 	if (cpuid_topo->package_id != -1)  in store_cpu_topology()
618 	cpuid_topo->thread_id = -1;  in store_cpu_topology()
619 	cpuid_topo->core_id = cpuid;  in store_cpu_topology()
620 	cpuid_topo->package_id = cpu_to_node(cpuid);  in store_cpu_topology()
623 		 cpuid, cpuid_topo->package_id, cpuid_topo->core_id,  in store_cpu_topology()
624 		 cpuid_topo->thread_id);  in store_cpu_topology()