1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef __PERF_ENV_H
  3#define __PERF_ENV_H
  4
  5#include <linux/types.h>
  6#include <linux/rbtree.h>
  7#include "rwsem.h"
  8
  9struct perf_cpu_map;
 10
 11struct cpu_topology_map {
 12	int	socket_id;
 13	int	die_id;
 14	int	core_id;
 15};
 16
 17struct cpu_cache_level {
 18	u32	level;
 19	u32	line_size;
 20	u32	sets;
 21	u32	ways;
 22	char	*type;
 23	char	*size;
 24	char	*map;
 25};
 26
 27struct numa_node {
 28	u32		 node;
 29	u64		 mem_total;
 30	u64		 mem_free;
 31	struct perf_cpu_map	*map;
 32};
 33
 34struct memory_node {
 35	u64		 node;
 36	u64		 size;
 37	unsigned long	*set;
 38};
 39
 40struct perf_env {
 41	char			*hostname;
 42	char			*os_release;
 43	char			*version;
 44	char			*arch;
 45	int			nr_cpus_online;
 46	int			nr_cpus_avail;
 47	char			*cpu_desc;
 48	char			*cpuid;
 49	unsigned long long	total_mem;
 50	unsigned int		msr_pmu_type;
 51	unsigned int		max_branches;
 52
 53	int			nr_cmdline;
 54	int			nr_sibling_cores;
 55	int			nr_sibling_dies;
 56	int			nr_sibling_threads;
 57	int			nr_numa_nodes;
 58	int			nr_memory_nodes;
 59	int			nr_pmu_mappings;
 60	int			nr_groups;
 61	int			nr_cpu_pmu_caps;
 62	char			*cmdline;
 63	const char		**cmdline_argv;
 64	char			*sibling_cores;
 65	char			*sibling_dies;
 66	char			*sibling_threads;
 67	char			*pmu_mappings;
 68	char			*cpu_pmu_caps;
 69	struct cpu_topology_map	*cpu;
 70	struct cpu_cache_level	*caches;
 71	int			 caches_cnt;
 72	u32			comp_ratio;
 73	u32			comp_ver;
 74	u32			comp_type;
 75	u32			comp_level;
 76	u32			comp_mmap_len;
 77	struct numa_node	*numa_nodes;
 78	struct memory_node	*memory_nodes;
 79	unsigned long long	 memory_bsize;
 80
 81	/*
 82	 * bpf_info_lock protects bpf rbtrees. This is needed because the
 83	 * trees are accessed by different threads in perf-top
 84	 */
 85	struct {
 86		struct rw_semaphore	lock;
 87		struct rb_root		infos;
 88		u32			infos_cnt;
 89		struct rb_root		btfs;
 90		u32			btfs_cnt;
 91	} bpf_progs;
 92
 93	/* same reason as above (for perf-top) */
 94	struct {
 95		struct rw_semaphore	lock;
 96		struct rb_root		tree;
 97	} cgroups;
 98
 99	/* For fast cpu to numa node lookup via perf_env__numa_node */
100	int			*numa_map;
101	int			 nr_numa_map;
102
103	/* For real clock time reference. */
104	struct {
105		u64	tod_ns;
106		u64	clockid_ns;
107		u64     clockid_res_ns;
108		int	clockid;
109		/*
110		 * enabled is valid for report mode, and is true if above
111		 * values are set, it's set in process_clock_data
112		 */
113		bool	enabled;
114	} clock;
115};
116
117enum perf_compress_type {
118	PERF_COMP_NONE = 0,
119	PERF_COMP_ZSTD,
120	PERF_COMP_MAX
121};
122
123struct bpf_prog_info_node;
124struct btf_node;
125
126extern struct perf_env perf_env;
127
128void perf_env__exit(struct perf_env *env);
129
130int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
131
132int perf_env__read_cpuid(struct perf_env *env);
133int perf_env__read_cpu_topology_map(struct perf_env *env);
134
135void cpu_cache_level__free(struct cpu_cache_level *cache);
136
137const char *perf_env__arch(struct perf_env *env);
138const char *perf_env__raw_arch(struct perf_env *env);
139int perf_env__nr_cpus_avail(struct perf_env *env);
140
141void perf_env__init(struct perf_env *env);
142void perf_env__insert_bpf_prog_info(struct perf_env *env,
143				    struct bpf_prog_info_node *info_node);
144struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
145							__u32 prog_id);
146void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
147struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
148
149int perf_env__numa_node(struct perf_env *env, int cpu);
150#endif /* __PERF_ENV_H */