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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_CPUTOPO_H
#define __PERF_CPUTOPO_H
#include <linux/types.h>
struct cpu_topology {
/* The number of unique package_cpus_lists below. */
u32 package_cpus_lists;
/* The number of unique die_cpu_lists below. */
u32 die_cpus_lists;
/* The number of unique core_cpu_lists below. */
u32 core_cpus_lists;
/*
* An array of strings where each string is unique and read from
* /sys/devices/system/cpu/cpuX/topology/package_cpus_list. From the ABI
* each of these is a human-readable list of CPUs sharing the same
* physical_package_id. The format is like 0-3, 8-11, 14,17.
*/
const char **package_cpus_list;
/*
* An array of string where each string is unique and from
* /sys/devices/system/cpu/cpuX/topology/die_cpus_list. From the ABI
* each of these is a human-readable list of CPUs within the same die.
* The format is like 0-3, 8-11, 14,17.
*/
const char **die_cpus_list;
/*
* An array of string where each string is unique and from
* /sys/devices/system/cpu/cpuX/topology/core_cpus_list. From the ABI
* each of these is a human-readable list of CPUs within the same
* core. The format is like 0-3, 8-11, 14,17.
*/
const char **core_cpus_list;
};
struct numa_topology_node {
char *cpus;
u32 node;
u64 mem_total;
u64 mem_free;
};
struct numa_topology {
u32 nr;
struct numa_topology_node nodes[];
};
struct hybrid_topology_node {
char *pmu_name;
char *cpus;
};
struct hybrid_topology {
u32 nr;
struct hybrid_topology_node nodes[];
};
/*
* The topology for online CPUs, lazily created.
*/
const struct cpu_topology *online_topology(void);
struct cpu_topology *cpu_topology__new(void);
void cpu_topology__delete(struct cpu_topology *tp);
/* Determine from the core list whether SMT was enabled. */
bool cpu_topology__smt_on(const struct cpu_topology *topology);
/* Are the sets of SMT siblings all enabled or all disabled in user_requested_cpus. */
bool cpu_topology__core_wide(const struct cpu_topology *topology,
const char *user_requested_cpu_list);
struct numa_topology *numa_topology__new(void);
void numa_topology__delete(struct numa_topology *tp);
struct hybrid_topology *hybrid_topology__new(void);
void hybrid_topology__delete(struct hybrid_topology *tp);
#endif /* __PERF_CPUTOPO_H */
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