From 6640b6c227fc85fd8bdcc4a31239a04450487f6a Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Sun, 25 Oct 2015 15:51:23 +0100 Subject: perf cpu_map: Add cpu_map user level event Adding the cpu_map event to pass/store cpu maps as data in a pipe/perf.data. We store maps in 2 formats: - list of cpus - mask of cpus The format that takes less space is selected transparently in the following patch. The interface is made generic, so we could add the cpumap event data into another event in the following patches. Signed-off-by: Jiri Olsa Tested-by: Kan Liang Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1445784728-21732-8-git-send-email-jolsa@kernel.org [ cpu_map_data_cpus -> cpu_map_entries, cpu_map_data_mask -> cpu_map_mask ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/event.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'tools/perf/util/event.h') diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index b7ad896d1317..1c82a0ebda73 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -227,6 +227,7 @@ enum perf_user_event_type { /* above any possible kernel type */ PERF_RECORD_AUXTRACE = 71, PERF_RECORD_AUXTRACE_ERROR = 72, PERF_RECORD_THREAD_MAP = 73, + PERF_RECORD_CPU_MAP = 74, PERF_RECORD_HEADER_MAX }; @@ -271,6 +272,32 @@ struct events_stats { u32 nr_proc_map_timeout; }; +enum { + PERF_CPU_MAP__CPUS = 0, + PERF_CPU_MAP__MASK = 1, +}; + +struct cpu_map_entries { + u16 nr; + u16 cpu[]; +}; + +struct cpu_map_mask { + u16 nr; + u16 long_size; + unsigned long mask[]; +}; + +struct cpu_map_data { + u16 type; + char data[]; +}; + +struct cpu_map_event { + struct perf_event_header header; + struct cpu_map_data data; +}; + struct attr_event { struct perf_event_header header; struct perf_event_attr attr; @@ -391,6 +418,7 @@ union perf_event { struct itrace_start_event itrace_start; struct context_switch_event context_switch; struct thread_map_event thread_map; + struct cpu_map_event cpu_map; }; void perf_event__print_totals(void); -- cgit