Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
615ffd63 JL |
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 | ||
805df296 | 8 | #include <linux/types.h> |
0e27c567 | 9 | #include <linux/percpu.h> |
805df296 | 10 | |
4ca4f26a | 11 | void topology_normalize_cpu_scale(void); |
bb1fbdd3 | 12 | int topology_update_cpu_topology(void); |
615ffd63 | 13 | |
9924fbb5 IV |
14 | #ifdef CONFIG_ACPI_CPPC_LIB |
15 | void topology_init_cpu_capacity_cppc(void); | |
16 | #endif | |
17 | ||
615ffd63 | 18 | struct device_node; |
805df296 | 19 | bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu); |
615ffd63 | 20 | |
8216f588 DE |
21 | DECLARE_PER_CPU(unsigned long, cpu_scale); |
22 | ||
99c73ce1 | 23 | static inline unsigned long topology_get_cpu_scale(int cpu) |
8216f588 DE |
24 | { |
25 | return per_cpu(cpu_scale, cpu); | |
26 | } | |
615ffd63 | 27 | |
4ca4f26a | 28 | void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity); |
615ffd63 | 29 | |
eec73529 | 30 | DECLARE_PER_CPU(unsigned long, arch_freq_scale); |
0e27c567 | 31 | |
99c73ce1 | 32 | static inline unsigned long topology_get_freq_scale(int cpu) |
0e27c567 | 33 | { |
eec73529 | 34 | return per_cpu(arch_freq_scale, cpu); |
0e27c567 DE |
35 | } |
36 | ||
a20b7053 IV |
37 | void topology_set_freq_scale(const struct cpumask *cpus, unsigned long cur_freq, |
38 | unsigned long max_freq); | |
15e5d5b4 VS |
39 | bool topology_scale_freq_invariant(void); |
40 | ||
01e055c1 VK |
41 | enum scale_freq_source { |
42 | SCALE_FREQ_SOURCE_CPUFREQ = 0, | |
43 | SCALE_FREQ_SOURCE_ARCH, | |
4c38f2df | 44 | SCALE_FREQ_SOURCE_CPPC, |
01e055c1 VK |
45 | }; |
46 | ||
47 | struct scale_freq_data { | |
48 | enum scale_freq_source source; | |
49 | void (*set_freq_scale)(void); | |
50 | }; | |
51 | ||
52 | void topology_scale_freq_tick(void); | |
53 | void topology_set_scale_freq_source(struct scale_freq_data *data, const struct cpumask *cpus); | |
54 | void topology_clear_scale_freq_source(enum scale_freq_source source, const struct cpumask *cpus); | |
cd0ed03a | 55 | |
ad58cc5c TG |
56 | DECLARE_PER_CPU(unsigned long, thermal_pressure); |
57 | ||
58 | static inline unsigned long topology_get_thermal_pressure(int cpu) | |
59 | { | |
60 | return per_cpu(thermal_pressure, cpu); | |
61 | } | |
62 | ||
c214f124 LL |
63 | void topology_update_thermal_pressure(const struct cpumask *cpus, |
64 | unsigned long capped_freq); | |
65 | ||
60c1b220 AP |
66 | struct cpu_topology { |
67 | int thread_id; | |
68 | int core_id; | |
c5e22fef | 69 | int cluster_id; |
60c1b220 AP |
70 | int package_id; |
71 | int llc_id; | |
72 | cpumask_t thread_sibling; | |
73 | cpumask_t core_sibling; | |
c5e22fef | 74 | cpumask_t cluster_sibling; |
60c1b220 AP |
75 | cpumask_t llc_sibling; |
76 | }; | |
77 | ||
78 | #ifdef CONFIG_GENERIC_ARCH_TOPOLOGY | |
79 | extern struct cpu_topology cpu_topology[NR_CPUS]; | |
80 | ||
81 | #define topology_physical_package_id(cpu) (cpu_topology[cpu].package_id) | |
c5e22fef | 82 | #define topology_cluster_id(cpu) (cpu_topology[cpu].cluster_id) |
60c1b220 AP |
83 | #define topology_core_id(cpu) (cpu_topology[cpu].core_id) |
84 | #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) | |
85 | #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) | |
c5e22fef | 86 | #define topology_cluster_cpumask(cpu) (&cpu_topology[cpu].cluster_sibling) |
60c1b220 AP |
87 | #define topology_llc_cpumask(cpu) (&cpu_topology[cpu].llc_sibling) |
88 | void init_cpu_topology(void); | |
89 | void store_cpu_topology(unsigned int cpuid); | |
90 | const struct cpumask *cpu_coregroup_mask(int cpu); | |
c5e22fef | 91 | const struct cpumask *cpu_clustergroup_mask(int cpu); |
60c1b220 | 92 | void update_siblings_masks(unsigned int cpu); |
60c1b220 | 93 | void remove_cpu_topology(unsigned int cpuid); |
ca74b316 | 94 | void reset_cpu_topology(void); |
edb44e84 | 95 | int parse_acpi_topology(void); |
ca74b316 | 96 | #endif |
60c1b220 | 97 | |
615ffd63 | 98 | #endif /* _LINUX_ARCH_TOPOLOGY_H_ */ |