| Message ID | 20220606115555.41103-5-yangyicong@hisilicon.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for HiSilicon PCIe Tune and Trace device | expand |
On Mon, Jun 06, 2022 at 07:55:51PM +0800, Yicong Yang wrote: > From: Qi Liu <liuqi115@huawei.com> > > Add find_pmu_for_event() and use to simplify logic in > auxtrace_record_init(). find_pmu_for_event() will be > reused in subsequent patches. > > Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> > Signed-off-by: Qi Liu <liuqi115@huawei.com> > Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Reviewed-by: Leo Yan <leo.yan@linaro.org> > --- > tools/perf/arch/arm/util/auxtrace.c | 53 ++++++++++++++++++----------- > 1 file changed, 34 insertions(+), 19 deletions(-) > > diff --git a/tools/perf/arch/arm/util/auxtrace.c b/tools/perf/arch/arm/util/auxtrace.c > index 5fc6a2a3dbc5..384c7cfda0fd 100644 > --- a/tools/perf/arch/arm/util/auxtrace.c > +++ b/tools/perf/arch/arm/util/auxtrace.c > @@ -50,16 +50,32 @@ static struct perf_pmu **find_all_arm_spe_pmus(int *nr_spes, int *err) > return arm_spe_pmus; > } > > +static struct perf_pmu *find_pmu_for_event(struct perf_pmu **pmus, > + int pmu_nr, struct evsel *evsel) > +{ > + int i; > + > + if (!pmus) > + return NULL; > + > + for (i = 0; i < pmu_nr; i++) { > + if (evsel->core.attr.type == pmus[i]->type) > + return pmus[i]; > + } > + > + return NULL; > +} > + > struct auxtrace_record > *auxtrace_record__init(struct evlist *evlist, int *err) > { > - struct perf_pmu *cs_etm_pmu; > + struct perf_pmu *cs_etm_pmu = NULL; > + struct perf_pmu **arm_spe_pmus = NULL; > struct evsel *evsel; > - bool found_etm = false; > + struct perf_pmu *found_etm = NULL; > struct perf_pmu *found_spe = NULL; > - struct perf_pmu **arm_spe_pmus = NULL; > + int auxtrace_event_cnt = 0; > int nr_spes = 0; > - int i = 0; > > if (!evlist) > return NULL; > @@ -68,24 +84,23 @@ struct auxtrace_record > arm_spe_pmus = find_all_arm_spe_pmus(&nr_spes, err); > > evlist__for_each_entry(evlist, evsel) { > - if (cs_etm_pmu && > - evsel->core.attr.type == cs_etm_pmu->type) > - found_etm = true; > - > - if (!nr_spes || found_spe) > - continue; > - > - for (i = 0; i < nr_spes; i++) { > - if (evsel->core.attr.type == arm_spe_pmus[i]->type) { > - found_spe = arm_spe_pmus[i]; > - break; > - } > - } > + if (cs_etm_pmu && !found_etm) > + found_etm = find_pmu_for_event(&cs_etm_pmu, 1, evsel); > + > + if (arm_spe_pmus && !found_spe) > + found_spe = find_pmu_for_event(arm_spe_pmus, nr_spes, evsel); > } > + > free(arm_spe_pmus); > > - if (found_etm && found_spe) { > - pr_err("Concurrent ARM Coresight ETM and SPE operation not currently supported\n"); > + if (found_etm) > + auxtrace_event_cnt++; > + > + if (found_spe) > + auxtrace_event_cnt++; > + > + if (auxtrace_event_cnt > 1) { > + pr_err("Concurrent AUX trace operation not currently supported\n"); > *err = -EOPNOTSUPP; > return NULL; > } > -- > 2.24.0
diff --git a/tools/perf/arch/arm/util/auxtrace.c b/tools/perf/arch/arm/util/auxtrace.c index 5fc6a2a3dbc5..384c7cfda0fd 100644 --- a/tools/perf/arch/arm/util/auxtrace.c +++ b/tools/perf/arch/arm/util/auxtrace.c @@ -50,16 +50,32 @@ static struct perf_pmu **find_all_arm_spe_pmus(int *nr_spes, int *err) return arm_spe_pmus; } +static struct perf_pmu *find_pmu_for_event(struct perf_pmu **pmus, + int pmu_nr, struct evsel *evsel) +{ + int i; + + if (!pmus) + return NULL; + + for (i = 0; i < pmu_nr; i++) { + if (evsel->core.attr.type == pmus[i]->type) + return pmus[i]; + } + + return NULL; +} + struct auxtrace_record *auxtrace_record__init(struct evlist *evlist, int *err) { - struct perf_pmu *cs_etm_pmu; + struct perf_pmu *cs_etm_pmu = NULL; + struct perf_pmu **arm_spe_pmus = NULL; struct evsel *evsel; - bool found_etm = false; + struct perf_pmu *found_etm = NULL; struct perf_pmu *found_spe = NULL; - struct perf_pmu **arm_spe_pmus = NULL; + int auxtrace_event_cnt = 0; int nr_spes = 0; - int i = 0; if (!evlist) return NULL; @@ -68,24 +84,23 @@ struct auxtrace_record arm_spe_pmus = find_all_arm_spe_pmus(&nr_spes, err); evlist__for_each_entry(evlist, evsel) { - if (cs_etm_pmu && - evsel->core.attr.type == cs_etm_pmu->type) - found_etm = true; - - if (!nr_spes || found_spe) - continue; - - for (i = 0; i < nr_spes; i++) { - if (evsel->core.attr.type == arm_spe_pmus[i]->type) { - found_spe = arm_spe_pmus[i]; - break; - } - } + if (cs_etm_pmu && !found_etm) + found_etm = find_pmu_for_event(&cs_etm_pmu, 1, evsel); + + if (arm_spe_pmus && !found_spe) + found_spe = find_pmu_for_event(arm_spe_pmus, nr_spes, evsel); } + free(arm_spe_pmus); - if (found_etm && found_spe) { - pr_err("Concurrent ARM Coresight ETM and SPE operation not currently supported\n"); + if (found_etm) + auxtrace_event_cnt++; + + if (found_spe) + auxtrace_event_cnt++; + + if (auxtrace_event_cnt > 1) { + pr_err("Concurrent AUX trace operation not currently supported\n"); *err = -EOPNOTSUPP; return NULL; }