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author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2019-03-28 16:27:49 +0100 |
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committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2019-03-28 16:27:49 +0100 |
commit | d899927728beca8357a5b4120b690cb3c1d80844 (patch) | |
tree | ccb170439cc8638d71f6120ae08a6faded46db98 /tools/perf/arch/x86/util/intel-pt.c | |
parent | 8d60367808c45e33c0a9127621f4e5fc34914f6b (diff) | |
parent | 0a8ab17689e628c84a666195bfc6ab85d11cf057 (diff) |
Merge remote-tracking branch 'remotes/fslc/4.9-2.3.x-imx' into toradex_4.9-2.3.x-imx-nextColibri-iMX7_LXDE-Image_2.8b6.184-20190401Colibri-iMX6_LXDE-Image_2.8b6.184-20190401Colibri-iMX6ULL_LXDE-Image_2.8b6.184-20190401Apalis-iMX6_LXDE-Image_2.8b6.184-20190401
Diffstat (limited to 'tools/perf/arch/x86/util/intel-pt.c')
-rw-r--r-- | tools/perf/arch/x86/util/intel-pt.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index 90fa2286edcf..c88adcbf966e 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -522,10 +522,21 @@ static int intel_pt_validate_config(struct perf_pmu *intel_pt_pmu, struct perf_evsel *evsel) { int err; + char c; if (!evsel) return 0; + /* + * If supported, force pass-through config term (pt=1) even if user + * sets pt=0, which avoids senseless kernel errors. + */ + if (perf_pmu__scan_file(intel_pt_pmu, "format/pt", "%c", &c) == 1 && + !(evsel->attr.config & 1)) { + pr_warning("pt=0 doesn't make sense, forcing pt=1\n"); + evsel->attr.config |= 1; + } + err = intel_pt_val_config_term(intel_pt_pmu, "caps/cycle_thresholds", "cyc_thresh", "caps/psb_cyc", evsel->attr.config); |