@@ -460,7 +460,8 @@ struct perf_event_attr {
inherit_thread : 1, /* children only inherit if cloned with CLONE_THREAD */
remove_on_exec : 1, /* event is removed from task on exec */
sigtrap : 1, /* send synchronous SIGTRAP on event */
- __reserved_1 : 26;
+ aux_start_paused : 1, /* start AUX area tracing paused */
+ __reserved_1 : 25;
union {
__u32 wakeup_events; /* wakeup every n events */
@@ -511,7 +512,15 @@ struct perf_event_attr {
__u16 sample_max_stack;
__u16 __reserved_2;
__u32 aux_sample_size;
- __u32 __reserved_3;
+
+ union {
+ __u32 aux_output_cfg;
+ struct {
+ __u64 aux_pause : 1, /* on overflow, pause AUX area tracing */
+ aux_resume : 1, /* on overflow, resume AUX area tracing */
+ __reserved_3 : 30;
+ };
+ };
/*
* User provided data if sigtrap=1, passed back to user via
@@ -814,6 +814,10 @@ void auxtrace_regroup_aux_output(struct evlist *evlist)
if (evsel__is_aux_event(evsel))
aux_evsel = evsel;
term = evsel__get_config_term(evsel, AUX_OUTPUT);
+ if (!term)
+ term = evsel__get_config_term(evsel, AUX_PAUSE);
+ if (!term)
+ term = evsel__get_config_term(evsel, AUX_RESUME);
/* If possible, group with the AUX event */
if (term && aux_evsel)
evlist__regroup(evlist, aux_evsel, evsel);
@@ -1001,6 +1001,15 @@ static void evsel__apply_config_terms(struct evsel *evsel,
case EVSEL__CONFIG_TERM_AUX_OUTPUT:
attr->aux_output = term->val.aux_output ? 1 : 0;
break;
+ case EVSEL__CONFIG_TERM_AUX_PAUSE:
+ attr->aux_pause = term->val.aux_pause ? 1 : 0;
+ break;
+ case EVSEL__CONFIG_TERM_AUX_RESUME:
+ attr->aux_resume = term->val.aux_resume ? 1 : 0;
+ break;
+ case EVSEL__CONFIG_TERM_AUX_START_PAUSED:
+ attr->aux_start_paused = term->val.aux_start_paused ? 1 : 0;
+ break;
case EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE:
/* Already applied by auxtrace */
break;
@@ -25,6 +25,9 @@ enum evsel_term_type {
EVSEL__CONFIG_TERM_BRANCH,
EVSEL__CONFIG_TERM_PERCORE,
EVSEL__CONFIG_TERM_AUX_OUTPUT,
+ EVSEL__CONFIG_TERM_AUX_PAUSE,
+ EVSEL__CONFIG_TERM_AUX_RESUME,
+ EVSEL__CONFIG_TERM_AUX_START_PAUSED,
EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE,
EVSEL__CONFIG_TERM_CFG_CHG,
};
@@ -44,6 +47,9 @@ struct evsel_config_term {
unsigned long max_events;
bool percore;
bool aux_output;
+ bool aux_pause;
+ bool aux_resume;
+ bool aux_start_paused;
u32 aux_sample_size;
u64 cfg_chg;
char *str;
@@ -768,6 +768,9 @@ static const char *config_term_name(enum parse_events__term_type term_type)
[PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config",
[PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore",
[PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output",
+ [PARSE_EVENTS__TERM_TYPE_AUX_PAUSE] = "aux-pause",
+ [PARSE_EVENTS__TERM_TYPE_AUX_RESUME] = "aux-resume",
+ [PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED] = "aux-start-paused",
[PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size",
[PARSE_EVENTS__TERM_TYPE_METRIC_ID] = "metric-id",
[PARSE_EVENTS__TERM_TYPE_RAW] = "raw",
@@ -817,6 +820,9 @@ config_term_avail(enum parse_events__term_type term_type, struct parse_events_er
case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
+ case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE:
+ case PARSE_EVENTS__TERM_TYPE_AUX_RESUME:
+ case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED:
case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
case PARSE_EVENTS__TERM_TYPE_RAW:
case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:
@@ -936,6 +942,15 @@ do { \
case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
CHECK_TYPE_VAL(NUM);
break;
+ case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE:
+ CHECK_TYPE_VAL(NUM);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_AUX_RESUME:
+ CHECK_TYPE_VAL(NUM);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED:
+ CHECK_TYPE_VAL(NUM);
+ break;
case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
CHECK_TYPE_VAL(NUM);
if (term->val.num > UINT_MAX) {
@@ -1036,6 +1051,9 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
+ case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE:
+ case PARSE_EVENTS__TERM_TYPE_AUX_RESUME:
+ case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED:
case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
return config_term_common(attr, term, err);
case PARSE_EVENTS__TERM_TYPE_USER:
@@ -1170,6 +1188,18 @@ do { \
ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output,
term->val.num ? 1 : 0, term->weak);
break;
+ case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE:
+ ADD_CONFIG_TERM_VAL(AUX_PAUSE, aux_pause,
+ term->val.num ? 1 : 0, term->weak);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_AUX_RESUME:
+ ADD_CONFIG_TERM_VAL(AUX_RESUME, aux_resume,
+ term->val.num ? 1 : 0, term->weak);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED:
+ ADD_CONFIG_TERM_VAL(AUX_START_PAUSED, aux_start_paused,
+ term->val.num ? 1 : 0, term->weak);
+ break;
case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size,
term->val.num, term->weak);
@@ -1232,6 +1262,9 @@ static int get_config_chgs(struct perf_pmu *pmu, struct parse_events_terms *head
case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
case PARSE_EVENTS__TERM_TYPE_PERCORE:
case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
+ case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE:
+ case PARSE_EVENTS__TERM_TYPE_AUX_RESUME:
+ case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED:
case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
case PARSE_EVENTS__TERM_TYPE_RAW:
@@ -74,6 +74,9 @@ enum parse_events__term_type {
PARSE_EVENTS__TERM_TYPE_DRV_CFG,
PARSE_EVENTS__TERM_TYPE_PERCORE,
PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT,
+ PARSE_EVENTS__TERM_TYPE_AUX_PAUSE,
+ PARSE_EVENTS__TERM_TYPE_AUX_RESUME,
+ PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED,
PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE,
PARSE_EVENTS__TERM_TYPE_METRIC_ID,
PARSE_EVENTS__TERM_TYPE_RAW,
@@ -244,6 +244,9 @@ overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
no-overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
percore { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); }
aux-output { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT); }
+aux-pause { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_PAUSE); }
+aux-resume { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_RESUME); }
+aux-start-paused { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED); }
aux-sample-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE); }
metric-id { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_METRIC_ID); }
cpu-cycles|cycles { return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
@@ -309,6 +309,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
PRINT_ATTRf(inherit_thread, p_unsigned);
PRINT_ATTRf(remove_on_exec, p_unsigned);
PRINT_ATTRf(sigtrap, p_unsigned);
+ PRINT_ATTRf(aux_start_paused, p_unsigned);
PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned, false);
PRINT_ATTRf(bp_type, p_unsigned);
@@ -323,6 +324,8 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
PRINT_ATTRf(sample_max_stack, p_unsigned);
PRINT_ATTRf(aux_sample_size, p_unsigned);
PRINT_ATTRf(sig_data, p_unsigned);
+ PRINT_ATTRf(aux_pause, p_unsigned);
+ PRINT_ATTRf(aux_resume, p_unsigned);
return ret;
}
Add config terms aux-pause, aux-resume and aux-start-paused. Still to do: validation, fallbacks for perf_event_open, documentation. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- tools/include/uapi/linux/perf_event.h | 13 +++++++-- tools/perf/util/auxtrace.c | 4 +++ tools/perf/util/evsel.c | 9 +++++++ tools/perf/util/evsel_config.h | 6 +++++ tools/perf/util/parse-events.c | 33 +++++++++++++++++++++++ tools/perf/util/parse-events.h | 3 +++ tools/perf/util/parse-events.l | 3 +++ tools/perf/util/perf_event_attr_fprintf.c | 3 +++ 8 files changed, 72 insertions(+), 2 deletions(-)