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 struct device_node; 14 struct device_node;
15 bool topology_parse_cpu_capacity(struct device 15 bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
16 16
17 DECLARE_PER_CPU(unsigned long, cpu_scale); 17 DECLARE_PER_CPU(unsigned long, cpu_scale);
18 18
19 static inline unsigned long topology_get_cpu_s 19 static inline unsigned long topology_get_cpu_scale(int cpu)
20 { 20 {
21 return per_cpu(cpu_scale, cpu); 21 return per_cpu(cpu_scale, cpu);
22 } 22 }
23 23
24 void topology_set_cpu_scale(unsigned int cpu, 24 void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);
25 25
26 DECLARE_PER_CPU(unsigned long, capacity_freq_r !! 26 DECLARE_PER_CPU(unsigned long, freq_scale);
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 <<
34 27
35 static inline unsigned long topology_get_freq_ 28 static inline unsigned long topology_get_freq_scale(int cpu)
36 { 29 {
37 return per_cpu(arch_freq_scale, cpu); !! 30 return per_cpu(freq_scale, cpu);
38 } 31 }
39 32
40 void topology_set_freq_scale(const struct cpum 33 void topology_set_freq_scale(const struct cpumask *cpus, unsigned long cur_freq,
41 unsigned long max 34 unsigned long max_freq);
42 bool topology_scale_freq_invariant(void); 35 bool topology_scale_freq_invariant(void);
43 36
44 enum scale_freq_source { !! 37 bool arch_freq_counters_available(const struct cpumask *cpus);
45 SCALE_FREQ_SOURCE_CPUFREQ = 0, <<
46 SCALE_FREQ_SOURCE_ARCH, <<
47 SCALE_FREQ_SOURCE_CPPC, <<
48 }; <<
49 <<
50 struct scale_freq_data { <<
51 enum scale_freq_source source; <<
52 void (*set_freq_scale)(void); <<
53 }; <<
54 <<
55 void topology_scale_freq_tick(void); <<
56 void topology_set_scale_freq_source(struct sca <<
57 void topology_clear_scale_freq_source(enum sca <<
58 38
59 DECLARE_PER_CPU(unsigned long, hw_pressure); !! 39 DECLARE_PER_CPU(unsigned long, thermal_pressure);
60 40
61 static inline unsigned long topology_get_hw_pr !! 41 static inline unsigned long topology_get_thermal_pressure(int cpu)
62 { 42 {
63 return per_cpu(hw_pressure, cpu); !! 43 return per_cpu(thermal_pressure, cpu);
64 } 44 }
65 45
66 void topology_update_hw_pressure(const struct !! 46 void topology_set_thermal_pressure(const struct cpumask *cpus,
67 unsigned !! 47 unsigned long th_pressure);
68 48
69 struct cpu_topology { 49 struct cpu_topology {
70 int thread_id; 50 int thread_id;
71 int core_id; 51 int core_id;
72 int cluster_id; <<
73 int package_id; 52 int package_id;
>> 53 int llc_id;
74 cpumask_t thread_sibling; 54 cpumask_t thread_sibling;
75 cpumask_t core_sibling; 55 cpumask_t core_sibling;
76 cpumask_t cluster_sibling; <<
77 cpumask_t llc_sibling; 56 cpumask_t llc_sibling;
78 }; 57 };
79 58
80 #ifdef CONFIG_GENERIC_ARCH_TOPOLOGY 59 #ifdef CONFIG_GENERIC_ARCH_TOPOLOGY
81 extern struct cpu_topology cpu_topology[NR_CPU 60 extern struct cpu_topology cpu_topology[NR_CPUS];
82 61
83 #define topology_physical_package_id(cpu) 62 #define topology_physical_package_id(cpu) (cpu_topology[cpu].package_id)
84 #define topology_cluster_id(cpu) (cpu_t <<
85 #define topology_core_id(cpu) (cpu_t 63 #define topology_core_id(cpu) (cpu_topology[cpu].core_id)
86 #define topology_core_cpumask(cpu) (&cpu_ 64 #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
87 #define topology_sibling_cpumask(cpu) (&cpu_ 65 #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
88 #define topology_cluster_cpumask(cpu) (&cpu_ <<
89 #define topology_llc_cpumask(cpu) (&cpu_ 66 #define topology_llc_cpumask(cpu) (&cpu_topology[cpu].llc_sibling)
90 void init_cpu_topology(void); 67 void init_cpu_topology(void);
91 void store_cpu_topology(unsigned int cpuid); 68 void store_cpu_topology(unsigned int cpuid);
92 const struct cpumask *cpu_coregroup_mask(int c 69 const struct cpumask *cpu_coregroup_mask(int cpu);
93 const struct cpumask *cpu_clustergroup_mask(in <<
94 void update_siblings_masks(unsigned int cpu); 70 void update_siblings_masks(unsigned int cpu);
95 void remove_cpu_topology(unsigned int cpuid); 71 void remove_cpu_topology(unsigned int cpuid);
96 void reset_cpu_topology(void); 72 void reset_cpu_topology(void);
97 int parse_acpi_topology(void); 73 int parse_acpi_topology(void);
98 void freq_inv_set_max_ratio(int cpu, u64 max_r <<
99 #endif 74 #endif
100 75
101 #endif /* _LINUX_ARCH_TOPOLOGY_H_ */ 76 #endif /* _LINUX_ARCH_TOPOLOGY_H_ */
102 77
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TOMOYO® is a registered trademark of NTT DATA CORPORATION.