1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * include/linux/arch_topology.h - arch specif 3 * include/linux/arch_topology.h - arch specific cpu topology information
4 */ 4 */
5 #ifndef _LINUX_ARCH_TOPOLOGY_H_ 5 #ifndef _LINUX_ARCH_TOPOLOGY_H_
6 #define _LINUX_ARCH_TOPOLOGY_H_ 6 #define _LINUX_ARCH_TOPOLOGY_H_
7 7
8 #include <linux/types.h> 8 #include <linux/types.h>
9 #include <linux/percpu.h> 9 #include <linux/percpu.h>
10 10
11 void topology_normalize_cpu_scale(void); 11 void topology_normalize_cpu_scale(void);
12 int topology_update_cpu_topology(void); 12 int topology_update_cpu_topology(void);
13 13
>> 14 #ifdef CONFIG_ACPI_CPPC_LIB
>> 15 void topology_init_cpu_capacity_cppc(void);
>> 16 #endif
>> 17
14 struct device_node; 18 struct device_node;
15 bool topology_parse_cpu_capacity(struct device 19 bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
16 20
17 DECLARE_PER_CPU(unsigned long, cpu_scale); 21 DECLARE_PER_CPU(unsigned long, cpu_scale);
18 22
19 static inline unsigned long topology_get_cpu_s 23 static inline unsigned long topology_get_cpu_scale(int cpu)
20 { 24 {
21 return per_cpu(cpu_scale, cpu); 25 return per_cpu(cpu_scale, cpu);
22 } 26 }
23 27
24 void topology_set_cpu_scale(unsigned int cpu, 28 void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);
25 29
26 DECLARE_PER_CPU(unsigned long, capacity_freq_r <<
27 <<
28 static inline unsigned long topology_get_freq_ <<
29 { <<
30 return per_cpu(capacity_freq_ref, cpu) <<
31 } <<
32 <<
33 DECLARE_PER_CPU(unsigned long, arch_freq_scale 30 DECLARE_PER_CPU(unsigned long, arch_freq_scale);
34 31
35 static inline unsigned long topology_get_freq_ 32 static inline unsigned long topology_get_freq_scale(int cpu)
36 { 33 {
37 return per_cpu(arch_freq_scale, cpu); 34 return per_cpu(arch_freq_scale, cpu);
38 } 35 }
39 36
40 void topology_set_freq_scale(const struct cpum 37 void topology_set_freq_scale(const struct cpumask *cpus, unsigned long cur_freq,
41 unsigned long max 38 unsigned long max_freq);
42 bool topology_scale_freq_invariant(void); 39 bool topology_scale_freq_invariant(void);
43 40
44 enum scale_freq_source { 41 enum scale_freq_source {
45 SCALE_FREQ_SOURCE_CPUFREQ = 0, 42 SCALE_FREQ_SOURCE_CPUFREQ = 0,
46 SCALE_FREQ_SOURCE_ARCH, 43 SCALE_FREQ_SOURCE_ARCH,
47 SCALE_FREQ_SOURCE_CPPC, 44 SCALE_FREQ_SOURCE_CPPC,
48 }; 45 };
49 46
50 struct scale_freq_data { 47 struct scale_freq_data {
51 enum scale_freq_source source; 48 enum scale_freq_source source;
52 void (*set_freq_scale)(void); 49 void (*set_freq_scale)(void);
53 }; 50 };
54 51
55 void topology_scale_freq_tick(void); 52 void topology_scale_freq_tick(void);
56 void topology_set_scale_freq_source(struct sca 53 void topology_set_scale_freq_source(struct scale_freq_data *data, const struct cpumask *cpus);
57 void topology_clear_scale_freq_source(enum sca 54 void topology_clear_scale_freq_source(enum scale_freq_source source, const struct cpumask *cpus);
58 55
59 DECLARE_PER_CPU(unsigned long, hw_pressure); !! 56 DECLARE_PER_CPU(unsigned long, thermal_pressure);
60 57
61 static inline unsigned long topology_get_hw_pr !! 58 static inline unsigned long topology_get_thermal_pressure(int cpu)
62 { 59 {
63 return per_cpu(hw_pressure, cpu); !! 60 return per_cpu(thermal_pressure, cpu);
64 } 61 }
65 62
66 void topology_update_hw_pressure(const struct !! 63 void topology_update_thermal_pressure(const struct cpumask *cpus,
67 unsigned 64 unsigned long capped_freq);
68 65
69 struct cpu_topology { 66 struct cpu_topology {
70 int thread_id; 67 int thread_id;
71 int core_id; 68 int core_id;
72 int cluster_id; 69 int cluster_id;
73 int package_id; 70 int package_id;
>> 71 int llc_id;
74 cpumask_t thread_sibling; 72 cpumask_t thread_sibling;
75 cpumask_t core_sibling; 73 cpumask_t core_sibling;
76 cpumask_t cluster_sibling; 74 cpumask_t cluster_sibling;
77 cpumask_t llc_sibling; 75 cpumask_t llc_sibling;
78 }; 76 };
79 77
80 #ifdef CONFIG_GENERIC_ARCH_TOPOLOGY 78 #ifdef CONFIG_GENERIC_ARCH_TOPOLOGY
81 extern struct cpu_topology cpu_topology[NR_CPU 79 extern struct cpu_topology cpu_topology[NR_CPUS];
82 80
83 #define topology_physical_package_id(cpu) 81 #define topology_physical_package_id(cpu) (cpu_topology[cpu].package_id)
84 #define topology_cluster_id(cpu) (cpu_t 82 #define topology_cluster_id(cpu) (cpu_topology[cpu].cluster_id)
85 #define topology_core_id(cpu) (cpu_t 83 #define topology_core_id(cpu) (cpu_topology[cpu].core_id)
86 #define topology_core_cpumask(cpu) (&cpu_ 84 #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
87 #define topology_sibling_cpumask(cpu) (&cpu_ 85 #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
88 #define topology_cluster_cpumask(cpu) (&cpu_ 86 #define topology_cluster_cpumask(cpu) (&cpu_topology[cpu].cluster_sibling)
89 #define topology_llc_cpumask(cpu) (&cpu_ 87 #define topology_llc_cpumask(cpu) (&cpu_topology[cpu].llc_sibling)
90 void init_cpu_topology(void); 88 void init_cpu_topology(void);
91 void store_cpu_topology(unsigned int cpuid); 89 void store_cpu_topology(unsigned int cpuid);
92 const struct cpumask *cpu_coregroup_mask(int c 90 const struct cpumask *cpu_coregroup_mask(int cpu);
93 const struct cpumask *cpu_clustergroup_mask(in 91 const struct cpumask *cpu_clustergroup_mask(int cpu);
94 void update_siblings_masks(unsigned int cpu); 92 void update_siblings_masks(unsigned int cpu);
95 void remove_cpu_topology(unsigned int cpuid); 93 void remove_cpu_topology(unsigned int cpuid);
96 void reset_cpu_topology(void); 94 void reset_cpu_topology(void);
97 int parse_acpi_topology(void); 95 int parse_acpi_topology(void);
98 void freq_inv_set_max_ratio(int cpu, u64 max_r <<
99 #endif 96 #endif
100 97
101 #endif /* _LINUX_ARCH_TOPOLOGY_H_ */ 98 #endif /* _LINUX_ARCH_TOPOLOGY_H_ */
102 99
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