1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * include/linux/arch_topology.h - arch specific cpu topology information
4 */
5 #ifndef _LINUX_ARCH_TOPOLOGY_H_
6 #define _LINUX_ARCH_TOPOLOGY_H_
7
8 #include <linux/types.h>
9 #include <linux/percpu.h>
10 #include <linux/android_vendor.h>
11
12 void topology_normalize_cpu_scale(void);
13 int topology_update_cpu_topology(void);
14
15 struct device_node;
16 bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
17
18 DECLARE_PER_CPU(unsigned long, cpu_scale);
19
topology_get_cpu_scale(int cpu)20 static inline unsigned long topology_get_cpu_scale(int cpu)
21 {
22 return per_cpu(cpu_scale, cpu);
23 }
24
25 void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);
26
27 DECLARE_PER_CPU(unsigned long, freq_scale);
28
topology_get_freq_scale(int cpu)29 static inline unsigned long topology_get_freq_scale(int cpu)
30 {
31 return per_cpu(freq_scale, cpu);
32 }
33
34 void topology_set_freq_scale(const struct cpumask *cpus, unsigned long cur_freq,
35 unsigned long max_freq);
36 bool topology_scale_freq_invariant(void);
37
38 bool arch_freq_counters_available(const struct cpumask *cpus);
39
40 DECLARE_PER_CPU(unsigned long, thermal_pressure);
41
topology_get_thermal_pressure(int cpu)42 static inline unsigned long topology_get_thermal_pressure(int cpu)
43 {
44 return per_cpu(thermal_pressure, cpu);
45 }
46
47 void topology_set_thermal_pressure(const struct cpumask *cpus,
48 unsigned long th_pressure);
49
50 struct cpu_topology {
51 int thread_id;
52 int core_id;
53 int package_id;
54 int llc_id;
55 cpumask_t thread_sibling;
56 cpumask_t core_sibling;
57 cpumask_t llc_sibling;
58
59 cpumask_t android_vendor_data1;
60 };
61
62 #ifdef CONFIG_GENERIC_ARCH_TOPOLOGY
63 extern struct cpu_topology cpu_topology[NR_CPUS];
64
65 #define topology_physical_package_id(cpu) (cpu_topology[cpu].package_id)
66 #define topology_core_id(cpu) (cpu_topology[cpu].core_id)
67 #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
68 #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
69 #define topology_llc_cpumask(cpu) (&cpu_topology[cpu].llc_sibling)
70 void init_cpu_topology(void);
71 void store_cpu_topology(unsigned int cpuid);
72 const struct cpumask *cpu_coregroup_mask(int cpu);
73 void update_siblings_masks(unsigned int cpu);
74 void remove_cpu_topology(unsigned int cpuid);
75 void reset_cpu_topology(void);
76 int parse_acpi_topology(void);
77 #endif
78 extern bool topology_update_done;
79
80 #endif /* _LINUX_ARCH_TOPOLOGY_H_ */
81