xref: /openbmc/linux/tools/perf/util/env.h (revision b830f94f)
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 "cpumap.h"
8 #include "rwsem.h"
9 
10 struct cpu_topology_map {
11 	int	socket_id;
12 	int	die_id;
13 	int	core_id;
14 };
15 
16 struct cpu_cache_level {
17 	u32	level;
18 	u32	line_size;
19 	u32	sets;
20 	u32	ways;
21 	char	*type;
22 	char	*size;
23 	char	*map;
24 };
25 
26 struct numa_node {
27 	u32		 node;
28 	u64		 mem_total;
29 	u64		 mem_free;
30 	struct cpu_map	*map;
31 };
32 
33 struct memory_node {
34 	u64		 node;
35 	u64		 size;
36 	unsigned long	*set;
37 };
38 
39 struct perf_env {
40 	char			*hostname;
41 	char			*os_release;
42 	char			*version;
43 	char			*arch;
44 	int			nr_cpus_online;
45 	int			nr_cpus_avail;
46 	char			*cpu_desc;
47 	char			*cpuid;
48 	unsigned long long	total_mem;
49 	unsigned int		msr_pmu_type;
50 
51 	int			nr_cmdline;
52 	int			nr_sibling_cores;
53 	int			nr_sibling_dies;
54 	int			nr_sibling_threads;
55 	int			nr_numa_nodes;
56 	int			nr_memory_nodes;
57 	int			nr_pmu_mappings;
58 	int			nr_groups;
59 	char			*cmdline;
60 	const char		**cmdline_argv;
61 	char			*sibling_cores;
62 	char			*sibling_dies;
63 	char			*sibling_threads;
64 	char			*pmu_mappings;
65 	struct cpu_topology_map	*cpu;
66 	struct cpu_cache_level	*caches;
67 	int			 caches_cnt;
68 	u32			comp_ratio;
69 	u32			comp_ver;
70 	u32			comp_type;
71 	u32			comp_level;
72 	u32			comp_mmap_len;
73 	struct numa_node	*numa_nodes;
74 	struct memory_node	*memory_nodes;
75 	unsigned long long	 memory_bsize;
76 	u64                     clockid_res_ns;
77 
78 	/*
79 	 * bpf_info_lock protects bpf rbtrees. This is needed because the
80 	 * trees are accessed by different threads in perf-top
81 	 */
82 	struct {
83 		struct rw_semaphore	lock;
84 		struct rb_root		infos;
85 		u32			infos_cnt;
86 		struct rb_root		btfs;
87 		u32			btfs_cnt;
88 	} bpf_progs;
89 };
90 
91 enum perf_compress_type {
92 	PERF_COMP_NONE = 0,
93 	PERF_COMP_ZSTD,
94 	PERF_COMP_MAX
95 };
96 
97 struct bpf_prog_info_node;
98 struct btf_node;
99 
100 extern struct perf_env perf_env;
101 
102 void perf_env__exit(struct perf_env *env);
103 
104 int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
105 
106 int perf_env__read_cpu_topology_map(struct perf_env *env);
107 
108 void cpu_cache_level__free(struct cpu_cache_level *cache);
109 
110 const char *perf_env__arch(struct perf_env *env);
111 const char *perf_env__raw_arch(struct perf_env *env);
112 int perf_env__nr_cpus_avail(struct perf_env *env);
113 
114 void perf_env__init(struct perf_env *env);
115 void perf_env__insert_bpf_prog_info(struct perf_env *env,
116 				    struct bpf_prog_info_node *info_node);
117 struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
118 							__u32 prog_id);
119 void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
120 struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
121 #endif /* __PERF_ENV_H */
122