Contributors: 18
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Juri Lelli |
84 |
19.22% |
4 |
10.81% |
| Mark Brown |
82 |
18.76% |
1 |
2.70% |
| Dietmar Eggemann |
80 |
18.31% |
3 |
8.11% |
| Viresh Kumar |
53 |
12.13% |
4 |
10.81% |
| Ionela Voinescu |
32 |
7.32% |
4 |
10.81% |
| Jonathan Cameron |
30 |
6.86% |
1 |
2.70% |
| Vincent Guittot |
18 |
4.12% |
4 |
10.81% |
| Atish Patra |
15 |
3.43% |
2 |
5.41% |
| Sudeep Holla |
10 |
2.29% |
2 |
5.41% |
| Ben Dooks |
6 |
1.37% |
1 |
2.70% |
| Morten Rasmussen |
6 |
1.37% |
1 |
2.70% |
| Valentin Schneider |
6 |
1.37% |
3 |
8.11% |
| Thara Gopinath |
5 |
1.14% |
1 |
2.70% |
| Lukasz Luba |
4 |
0.92% |
1 |
2.70% |
| Jeremy Linton |
3 |
0.69% |
2 |
5.41% |
| Bartosz Golaszewski |
1 |
0.23% |
1 |
2.70% |
| Greg Kroah-Hartman |
1 |
0.23% |
1 |
2.70% |
| Nico Pitre |
1 |
0.23% |
1 |
2.70% |
| Total |
437 |
|
37 |
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* include/linux/arch_topology.h - arch specific cpu topology information
*/
#ifndef _LINUX_ARCH_TOPOLOGY_H_
#define _LINUX_ARCH_TOPOLOGY_H_
#include <linux/types.h>
#include <linux/percpu.h>
void topology_normalize_cpu_scale(void);
int topology_update_cpu_topology(void);
#ifdef CONFIG_ACPI_CPPC_LIB
void topology_init_cpu_capacity_cppc(void);
#endif
struct device_node;
bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
DECLARE_PER_CPU(unsigned long, cpu_scale);
static inline unsigned long topology_get_cpu_scale(int cpu)
{
return per_cpu(cpu_scale, cpu);
}
void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);
DECLARE_PER_CPU(unsigned long, capacity_freq_ref);
static inline unsigned long topology_get_freq_ref(int cpu)
{
return per_cpu(capacity_freq_ref, cpu);
}
DECLARE_PER_CPU(unsigned long, arch_freq_scale);
static inline unsigned long topology_get_freq_scale(int cpu)
{
return per_cpu(arch_freq_scale, cpu);
}
void topology_set_freq_scale(const struct cpumask *cpus, unsigned long cur_freq,
unsigned long max_freq);
bool topology_scale_freq_invariant(void);
enum scale_freq_source {
SCALE_FREQ_SOURCE_CPUFREQ = 0,
SCALE_FREQ_SOURCE_ARCH,
SCALE_FREQ_SOURCE_CPPC,
};
struct scale_freq_data {
enum scale_freq_source source;
void (*set_freq_scale)(void);
};
void topology_scale_freq_tick(void);
void topology_set_scale_freq_source(struct scale_freq_data *data, const struct cpumask *cpus);
void topology_clear_scale_freq_source(enum scale_freq_source source, const struct cpumask *cpus);
DECLARE_PER_CPU(unsigned long, hw_pressure);
static inline unsigned long topology_get_hw_pressure(int cpu)
{
return per_cpu(hw_pressure, cpu);
}
void topology_update_hw_pressure(const struct cpumask *cpus,
unsigned long capped_freq);
struct cpu_topology {
int thread_id;
int core_id;
int cluster_id;
int package_id;
cpumask_t thread_sibling;
cpumask_t core_sibling;
cpumask_t cluster_sibling;
cpumask_t llc_sibling;
};
#ifdef CONFIG_GENERIC_ARCH_TOPOLOGY
extern struct cpu_topology cpu_topology[NR_CPUS];
#define topology_physical_package_id(cpu) (cpu_topology[cpu].package_id)
#define topology_cluster_id(cpu) (cpu_topology[cpu].cluster_id)
#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
#define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
#define topology_cluster_cpumask(cpu) (&cpu_topology[cpu].cluster_sibling)
#define topology_llc_cpumask(cpu) (&cpu_topology[cpu].llc_sibling)
void init_cpu_topology(void);
void store_cpu_topology(unsigned int cpuid);
const struct cpumask *cpu_coregroup_mask(int cpu);
const struct cpumask *cpu_clustergroup_mask(int cpu);
void update_siblings_masks(unsigned int cpu);
void remove_cpu_topology(unsigned int cpuid);
void reset_cpu_topology(void);
int parse_acpi_topology(void);
void freq_inv_set_max_ratio(int cpu, u64 max_rate);
#endif
#endif /* _LINUX_ARCH_TOPOLOGY_H_ */