perf pmu: Avoid passing format list to perf_pmu__config_terms()

Abstract the format list better, hiding it in the PMU, by changing
perf_pmu__config_terms() the PMU rather than the format list in the PMU.

Change the PMU test to pass a dummy PMU for this purpose. Changing the
test allows perf_pmu__del_formats() to become static.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Gaosheng Cui <cuigaosheng1@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230823080828.1460376-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 10 insertions, 20 deletions

diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
index 74b70fd379df..0da76f848cbc 100644
--- a/tools/perf/arch/x86/util/intel-pt.c
+++ b/tools/perf/arch/x86/util/intel-pt.c
@@ -60,8 +60,7 @@ struct intel_pt_recording {
 	size_t				priv_size;
 };
 
-static int intel_pt_parse_terms_with_default(const char *pmu_name,
-					     struct list_head *formats,
+static int intel_pt_parse_terms_with_default(struct perf_pmu *pmu,
 					     const char *str,
 					     u64 *config)
 {
@@ -80,8 +79,7 @@ static int intel_pt_parse_terms_with_default(const char *pmu_name,
 		goto out_free;
 
 	attr.config = *config;
-	err = perf_pmu__config_terms(pmu_name, formats, &attr, terms, true,
-				     NULL);
+	err = perf_pmu__config_terms(pmu, &attr, terms, /*zero=*/true, /*err=*/NULL);
 	if (err)
 		goto out_free;
 
@@ -91,12 +89,10 @@ out_free:
 	return err;
 }
 
-static int intel_pt_parse_terms(const char *pmu_name, struct list_head *formats,
-				const char *str, u64 *config)
+static int intel_pt_parse_terms(struct perf_pmu *pmu, const char *str, u64 *config)
 {
 	*config = 0;
-	return intel_pt_parse_terms_with_default(pmu_name, formats, str,
-						 config);
+	return intel_pt_parse_terms_with_default(pmu, str, config);
 }
 
 static u64 intel_pt_masked_bits(u64 mask, u64 bits)
@@ -236,8 +232,7 @@ static u64 intel_pt_default_config(struct perf_pmu *intel_pt_pmu)
 
 	pr_debug2("%s default config: %s\n", intel_pt_pmu->name, buf);
 
-	intel_pt_parse_terms(intel_pt_pmu->name, &intel_pt_pmu->format, buf,
-			     &config);
+	intel_pt_parse_terms(intel_pt_pmu, buf, &config);
 
 	close(dirfd);
 	return config;
@@ -348,16 +343,12 @@ static int intel_pt_info_fill(struct auxtrace_record *itr,
 	if (priv_size != ptr->priv_size)
 		return -EINVAL;
 
-	intel_pt_parse_terms(intel_pt_pmu->name, &intel_pt_pmu->format,
-			     "tsc", &tsc_bit);
-	intel_pt_parse_terms(intel_pt_pmu->name, &intel_pt_pmu->format,
-			     "noretcomp", &noretcomp_bit);
-	intel_pt_parse_terms(intel_pt_pmu->name, &intel_pt_pmu->format,
-			     "mtc", &mtc_bit);
+	intel_pt_parse_terms(intel_pt_pmu, "tsc", &tsc_bit);
+	intel_pt_parse_terms(intel_pt_pmu, "noretcomp", &noretcomp_bit);
+	intel_pt_parse_terms(intel_pt_pmu, "mtc", &mtc_bit);
 	mtc_freq_bits = perf_pmu__format_bits(&intel_pt_pmu->format,
 					      "mtc_period");
-	intel_pt_parse_terms(intel_pt_pmu->name, &intel_pt_pmu->format,
-			     "cyc", &cyc_bit);
+	intel_pt_parse_terms(intel_pt_pmu, "cyc", &cyc_bit);
 
 	intel_pt_tsc_ctc_ratio(&tsc_ctc_ratio_n, &tsc_ctc_ratio_d);
 
@@ -781,8 +772,7 @@ static int intel_pt_recording_options(struct auxtrace_record *itr,
 		intel_pt_evsel->core.attr.aux_watermark = aux_watermark;
 	}
 
-	intel_pt_parse_terms(intel_pt_pmu->name, &intel_pt_pmu->format,
-			     "tsc", &tsc_bit);
+	intel_pt_parse_terms(intel_pt_pmu, "tsc", &tsc_bit);
 
 	if (opts->full_auxtrace && (intel_pt_evsel->core.attr.config & tsc_bit))
 		have_timing_info = true;