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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __PERF_CPUTOPO_H3#define __PERF_CPUTOPO_H4 5#include <linux/types.h>6 7struct cpu_topology {8 /* The number of unique package_cpus_lists below. */9 u32 package_cpus_lists;10 /* The number of unique die_cpu_lists below. */11 u32 die_cpus_lists;12 /* The number of unique core_cpu_lists below. */13 u32 core_cpus_lists;14 /*15 * An array of strings where each string is unique and read from16 * /sys/devices/system/cpu/cpuX/topology/package_cpus_list. From the ABI17 * each of these is a human-readable list of CPUs sharing the same18 * physical_package_id. The format is like 0-3, 8-11, 14,17.19 */20 const char **package_cpus_list;21 /*22 * An array of string where each string is unique and from23 * /sys/devices/system/cpu/cpuX/topology/die_cpus_list. From the ABI24 * each of these is a human-readable list of CPUs within the same die.25 * The format is like 0-3, 8-11, 14,17.26 */27 const char **die_cpus_list;28 /*29 * An array of string where each string is unique and from30 * /sys/devices/system/cpu/cpuX/topology/core_cpus_list. From the ABI31 * each of these is a human-readable list of CPUs within the same32 * core. The format is like 0-3, 8-11, 14,17.33 */34 const char **core_cpus_list;35};36 37struct numa_topology_node {38 char *cpus;39 u32 node;40 u64 mem_total;41 u64 mem_free;42};43 44struct numa_topology {45 u32 nr;46 struct numa_topology_node nodes[];47};48 49struct hybrid_topology_node {50 char *pmu_name;51 char *cpus;52};53 54struct hybrid_topology {55 u32 nr;56 struct hybrid_topology_node nodes[];57};58 59/*60 * The topology for online CPUs, lazily created.61 */62const struct cpu_topology *online_topology(void);63 64struct cpu_topology *cpu_topology__new(void);65void cpu_topology__delete(struct cpu_topology *tp);66/* Determine from the core list whether SMT was enabled. */67bool cpu_topology__smt_on(const struct cpu_topology *topology);68/* Are the sets of SMT siblings all enabled or all disabled in user_requested_cpus. */69bool cpu_topology__core_wide(const struct cpu_topology *topology,70 const char *user_requested_cpu_list);71 72struct numa_topology *numa_topology__new(void);73void numa_topology__delete(struct numa_topology *tp);74 75struct hybrid_topology *hybrid_topology__new(void);76void hybrid_topology__delete(struct hybrid_topology *tp);77 78#endif /* __PERF_CPUTOPO_H */79