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([145.224.90.227]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-436e2ddccf4sm22836965e9.19.2025.01.08.06.30.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jan 2025 06:30:23 -0800 (PST) From: James Clark To: linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, irogers@google.com, yeoreum.yun@arm.com, will@kernel.org, mark.rutland@arm.com, namhyung@kernel.org, acme@kernel.org Cc: robh@kernel.org, James Clark , Peter Zijlstra , Ingo Molnar , Alexander Shishkin , Jiri Olsa , Adrian Hunter , "Liang, Kan" , John Garry , Mike Leach , Leo Yan , Graham Woodward , Michael Petlan , Veronika Molnarova , Athira Rajeev , Thomas Richter , linux-kernel@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH v3 3/5] perf tool: arm-spe: Pull out functions for aux buffer and tracking setup Date: Wed, 8 Jan 2025 14:28:58 +0000 Message-Id: <20250108142904.401139-4-james.clark@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250108142904.401139-1-james.clark@linaro.org> References: <20250108142904.401139-1-james.clark@linaro.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" These won't be used in the next commit in discard mode, so put them in their own functions. No functional changes intended. Reviewed-by: Yeoreum Yun Signed-off-by: James Clark --- tools/perf/arch/arm64/util/arm-spe.c | 83 +++++++++++++++++----------- 1 file changed, 51 insertions(+), 32 deletions(-) diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/u= til/arm-spe.c index 22b19dcc6beb..1b543855f206 100644 --- a/tools/perf/arch/arm64/util/arm-spe.c +++ b/tools/perf/arch/arm64/util/arm-spe.c @@ -274,33 +274,9 @@ static void arm_spe_setup_evsel(struct evsel *evsel, s= truct perf_cpu_map *cpus) evsel__set_sample_bit(evsel, PHYS_ADDR); } =20 -static int arm_spe_recording_options(struct auxtrace_record *itr, - struct evlist *evlist, - struct record_opts *opts) +static int arm_spe_setup_aux_buffer(struct record_opts *opts) { - struct arm_spe_recording *sper =3D - container_of(itr, struct arm_spe_recording, itr); - struct evsel *evsel, *tmp; - struct perf_cpu_map *cpus =3D evlist->core.user_requested_cpus; bool privileged =3D perf_event_paranoid_check(-1); - struct evsel *tracking_evsel; - int err; - - sper->evlist =3D evlist; - - evlist__for_each_entry(evlist, evsel) { - if (evsel__is_aux_event(evsel)) { - if (!strstarts(evsel->pmu->name, ARM_SPE_PMU_NAME)) { - pr_err("Found unexpected auxtrace event: %s\n", - evsel->pmu->name); - return -EINVAL; - } - opts->full_auxtrace =3D true; - } - } - - if (!opts->full_auxtrace) - return 0; =20 /* * we are in snapshot mode. @@ -330,6 +306,9 @@ static int arm_spe_recording_options(struct auxtrace_re= cord *itr, pr_err("Failed to calculate default snapshot size and/or AUX area traci= ng mmap pages\n"); return -EINVAL; } + + pr_debug2("%sx snapshot size: %zu\n", ARM_SPE_PMU_NAME, + opts->auxtrace_snapshot_size); } =20 /* We are in full trace mode but '-m,xyz' wasn't specified */ @@ -355,14 +334,15 @@ static int arm_spe_recording_options(struct auxtrace_= record *itr, } } =20 - if (opts->auxtrace_snapshot_mode) - pr_debug2("%sx snapshot size: %zu\n", ARM_SPE_PMU_NAME, - opts->auxtrace_snapshot_size); + return 0; +} =20 - evlist__for_each_entry_safe(evlist, tmp, evsel) { - if (evsel__is_aux_event(evsel)) - arm_spe_setup_evsel(evsel, cpus); - } +static int arm_spe_setup_tracking_event(struct evlist *evlist, + struct record_opts *opts) +{ + int err; + struct evsel *tracking_evsel; + struct perf_cpu_map *cpus =3D evlist->core.user_requested_cpus; =20 /* Add dummy event to keep tracking */ err =3D parse_event(evlist, "dummy:u"); @@ -388,6 +368,45 @@ static int arm_spe_recording_options(struct auxtrace_r= ecord *itr, return 0; } =20 +static int arm_spe_recording_options(struct auxtrace_record *itr, + struct evlist *evlist, + struct record_opts *opts) +{ + struct arm_spe_recording *sper =3D + container_of(itr, struct arm_spe_recording, itr); + struct evsel *evsel, *tmp; + struct perf_cpu_map *cpus =3D evlist->core.user_requested_cpus; + + int err; + + sper->evlist =3D evlist; + + evlist__for_each_entry(evlist, evsel) { + if (evsel__is_aux_event(evsel)) { + if (!strstarts(evsel->pmu->name, ARM_SPE_PMU_NAME)) { + pr_err("Found unexpected auxtrace event: %s\n", + evsel->pmu->name); + return -EINVAL; + } + opts->full_auxtrace =3D true; + } + } + + if (!opts->full_auxtrace) + return 0; + + evlist__for_each_entry_safe(evlist, tmp, evsel) { + if (evsel__is_aux_event(evsel)) + arm_spe_setup_evsel(evsel, cpus); + } + + err =3D arm_spe_setup_aux_buffer(opts); + if (err) + return err; + + return arm_spe_setup_tracking_event(evlist, opts); +} + static int arm_spe_parse_snapshot_options(struct auxtrace_record *itr __ma= ybe_unused, struct record_opts *opts, const char *str) --=20 2.34.1