mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-16 14:02:10 +00:00
7e2ed09753
So that we don't have to pass it around to the several methods that needs it, simplifying usage. There is one case where we don't have the thread/cpu map in advance, which is in the parsing routines used by top, stat, record, that we have to wait till all options are parsed to know if a cpu or thread list was passed to then create those maps. For that case consolidate the cpu and thread map creation via perf_evlist__create_maps() out of the code in top and record, while also providing a perf_evlist__set_maps() for cases where multiple evlists share maps or for when maps that represent CPU sockets, for instance, get crafted out of topology information or subsets of threads in a particular application are to be monitored, providing more granularity in specifying which cpus and threads to monitor. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
#ifndef __PERF_EVLIST_H
|
|
#define __PERF_EVLIST_H 1
|
|
|
|
#include <linux/list.h>
|
|
#include "../perf.h"
|
|
#include "event.h"
|
|
|
|
struct pollfd;
|
|
struct thread_map;
|
|
struct cpu_map;
|
|
|
|
#define PERF_EVLIST__HLIST_BITS 8
|
|
#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
|
|
|
|
struct perf_evlist {
|
|
struct list_head entries;
|
|
struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
|
|
int nr_entries;
|
|
int nr_fds;
|
|
int mmap_len;
|
|
bool overwrite;
|
|
union perf_event event_copy;
|
|
struct perf_mmap *mmap;
|
|
struct pollfd *pollfd;
|
|
struct thread_map *threads;
|
|
struct cpu_map *cpus;
|
|
};
|
|
|
|
struct perf_evsel;
|
|
|
|
struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
|
|
struct thread_map *threads);
|
|
void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
|
|
struct thread_map *threads);
|
|
void perf_evlist__exit(struct perf_evlist *evlist);
|
|
void perf_evlist__delete(struct perf_evlist *evlist);
|
|
|
|
void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
|
|
int perf_evlist__add_default(struct perf_evlist *evlist);
|
|
|
|
int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
|
|
void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
|
|
|
|
struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
|
|
|
|
union perf_event *perf_evlist__read_on_cpu(struct perf_evlist *self, int cpu);
|
|
|
|
int perf_evlist__alloc_mmap(struct perf_evlist *evlist);
|
|
int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite);
|
|
void perf_evlist__munmap(struct perf_evlist *evlist);
|
|
|
|
static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
|
|
struct cpu_map *cpus,
|
|
struct thread_map *threads)
|
|
{
|
|
evlist->cpus = cpus;
|
|
evlist->threads = threads;
|
|
}
|
|
|
|
int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid,
|
|
pid_t target_tid, const char *cpu_list);
|
|
void perf_evlist__delete_maps(struct perf_evlist *evlist);
|
|
|
|
#endif /* __PERF_EVLIST_H */
|