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A common problem is confusing CPU map indices with the CPU, by wrapping the CPU with a struct then this is avoided. This approach is similar to atomic_t. Committer notes: To make it build with BUILD_BPF_SKEL=1 these files needed the conversions to 'struct perf_cpu' usage: tools/perf/util/bpf_counter.c tools/perf/util/bpf_counter_cgroup.c tools/perf/util/bpf_ftrace.c Also perf_env__get_cpu() was removed back in "perf cpumap: Switch cpu_map__build_map to cpu function". Additionally these needed to be fixed for the ARM builds to complete: tools/perf/arch/arm/util/cs-etm.c tools/perf/arch/arm64/util/pmu.c Suggested-by: John Garry <john.garry@huawei.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Clarke <pc@us.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Vineet Singh <vineet.singh@intel.com> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: zhengjun.xing@intel.com Link: https://lore.kernel.org/r/20220105061351.120843-49-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
176 lines
3.9 KiB
C
176 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_ENV_H
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#define __PERF_ENV_H
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#include <linux/types.h>
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#include <linux/rbtree.h>
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#include "cpumap.h"
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#include "rwsem.h"
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struct perf_cpu_map;
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struct cpu_topology_map {
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int socket_id;
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int die_id;
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int core_id;
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};
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struct cpu_cache_level {
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u32 level;
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u32 line_size;
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u32 sets;
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u32 ways;
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char *type;
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char *size;
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char *map;
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};
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struct numa_node {
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u32 node;
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u64 mem_total;
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u64 mem_free;
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struct perf_cpu_map *map;
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};
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struct memory_node {
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u64 node;
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u64 size;
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unsigned long *set;
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};
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struct hybrid_node {
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char *pmu_name;
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char *cpus;
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};
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struct hybrid_cpc_node {
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int nr_cpu_pmu_caps;
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unsigned int max_branches;
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char *cpu_pmu_caps;
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char *pmu_name;
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};
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struct perf_env {
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char *hostname;
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char *os_release;
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char *version;
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char *arch;
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int nr_cpus_online;
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int nr_cpus_avail;
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char *cpu_desc;
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char *cpuid;
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unsigned long long total_mem;
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unsigned int msr_pmu_type;
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unsigned int max_branches;
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int kernel_is_64_bit;
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int nr_cmdline;
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int nr_sibling_cores;
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int nr_sibling_dies;
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int nr_sibling_threads;
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int nr_numa_nodes;
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int nr_memory_nodes;
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int nr_pmu_mappings;
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int nr_groups;
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int nr_cpu_pmu_caps;
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int nr_hybrid_nodes;
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int nr_hybrid_cpc_nodes;
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char *cmdline;
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const char **cmdline_argv;
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char *sibling_cores;
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char *sibling_dies;
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char *sibling_threads;
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char *pmu_mappings;
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char *cpu_pmu_caps;
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struct cpu_topology_map *cpu;
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struct cpu_cache_level *caches;
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int caches_cnt;
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u32 comp_ratio;
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u32 comp_ver;
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u32 comp_type;
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u32 comp_level;
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u32 comp_mmap_len;
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struct numa_node *numa_nodes;
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struct memory_node *memory_nodes;
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unsigned long long memory_bsize;
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struct hybrid_node *hybrid_nodes;
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struct hybrid_cpc_node *hybrid_cpc_nodes;
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#ifdef HAVE_LIBBPF_SUPPORT
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/*
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* bpf_info_lock protects bpf rbtrees. This is needed because the
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* trees are accessed by different threads in perf-top
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*/
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struct {
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struct rw_semaphore lock;
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struct rb_root infos;
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u32 infos_cnt;
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struct rb_root btfs;
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u32 btfs_cnt;
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} bpf_progs;
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#endif // HAVE_LIBBPF_SUPPORT
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/* same reason as above (for perf-top) */
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struct {
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struct rw_semaphore lock;
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struct rb_root tree;
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} cgroups;
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/* For fast cpu to numa node lookup via perf_env__numa_node */
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int *numa_map;
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int nr_numa_map;
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/* For real clock time reference. */
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struct {
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u64 tod_ns;
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u64 clockid_ns;
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u64 clockid_res_ns;
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int clockid;
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/*
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* enabled is valid for report mode, and is true if above
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* values are set, it's set in process_clock_data
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*/
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bool enabled;
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} clock;
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};
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enum perf_compress_type {
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PERF_COMP_NONE = 0,
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PERF_COMP_ZSTD,
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PERF_COMP_MAX
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};
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struct bpf_prog_info_node;
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struct btf_node;
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extern struct perf_env perf_env;
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void perf_env__exit(struct perf_env *env);
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int perf_env__kernel_is_64_bit(struct perf_env *env);
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int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
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int perf_env__read_cpuid(struct perf_env *env);
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int perf_env__read_pmu_mappings(struct perf_env *env);
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int perf_env__nr_pmu_mappings(struct perf_env *env);
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const char *perf_env__pmu_mappings(struct perf_env *env);
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int perf_env__read_cpu_topology_map(struct perf_env *env);
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void cpu_cache_level__free(struct cpu_cache_level *cache);
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const char *perf_env__arch(struct perf_env *env);
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const char *perf_env__cpuid(struct perf_env *env);
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const char *perf_env__raw_arch(struct perf_env *env);
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int perf_env__nr_cpus_avail(struct perf_env *env);
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void perf_env__init(struct perf_env *env);
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void perf_env__insert_bpf_prog_info(struct perf_env *env,
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struct bpf_prog_info_node *info_node);
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struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
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__u32 prog_id);
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bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
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struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
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int perf_env__numa_node(struct perf_env *env, struct perf_cpu cpu);
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#endif /* __PERF_ENV_H */
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