From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- tools/perf/arch/x86/util/auxtrace.c | 75 +++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 tools/perf/arch/x86/util/auxtrace.c (limited to 'tools/perf/arch/x86/util/auxtrace.c') diff --git a/tools/perf/arch/x86/util/auxtrace.c b/tools/perf/arch/x86/util/auxtrace.c new file mode 100644 index 000000000..3da506e13 --- /dev/null +++ b/tools/perf/arch/x86/util/auxtrace.c @@ -0,0 +1,75 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * auxtrace.c: AUX area tracing support + * Copyright (c) 2013-2014, Intel Corporation. + */ + +#include +#include + +#include "../../../util/header.h" +#include "../../../util/debug.h" +#include "../../../util/pmu.h" +#include "../../../util/auxtrace.h" +#include "../../../util/intel-pt.h" +#include "../../../util/intel-bts.h" +#include "../../../util/evlist.h" + +static +struct auxtrace_record *auxtrace_record__init_intel(struct evlist *evlist, + int *err) +{ + struct perf_pmu *intel_pt_pmu; + struct perf_pmu *intel_bts_pmu; + struct evsel *evsel; + bool found_pt = false; + bool found_bts = false; + + intel_pt_pmu = perf_pmu__find(INTEL_PT_PMU_NAME); + if (intel_pt_pmu) + intel_pt_pmu->auxtrace = true; + intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME); + if (intel_bts_pmu) + intel_bts_pmu->auxtrace = true; + + evlist__for_each_entry(evlist, evsel) { + if (intel_pt_pmu && evsel->core.attr.type == intel_pt_pmu->type) + found_pt = true; + if (intel_bts_pmu && evsel->core.attr.type == intel_bts_pmu->type) + found_bts = true; + } + + if (found_pt && found_bts) { + pr_err("intel_pt and intel_bts may not be used together\n"); + *err = -EINVAL; + return NULL; + } + + if (found_pt) + return intel_pt_recording_init(err); + + if (found_bts) + return intel_bts_recording_init(err); + + return NULL; +} + +struct auxtrace_record *auxtrace_record__init(struct evlist *evlist, + int *err) +{ + char buffer[64]; + int ret; + + *err = 0; + + ret = get_cpuid(buffer, sizeof(buffer)); + if (ret) { + *err = ret; + return NULL; + } + + if (!strncmp(buffer, "GenuineIntel,", 13)) + return auxtrace_record__init_intel(evlist, err); + + return NULL; +} -- cgit v1.2.3