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Mon, 20 Jul 2026 11:04:16 +0000 (GMT) Received: from localhost.localdomain (unknown [9.39.16.54]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 20 Jul 2026 11:04:15 +0000 (GMT) From: Athira Rajeev To: acme@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com, maddy@linux.ibm.com, irogers@google.com, namhyung@kernel.org Cc: linux-perf-users@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, atrajeev@linux.ibm.com, hbathini@linux.vnet.ibm.com, tejas05@linux.ibm.com, tshah@linux.ibm.com, venkat88@linux.ibm.com, usha.r2@ibm.com Subject: [PATCH V2 5/6] tools/perf: Add powerpc HTM auxtrace event processing support Date: Mon, 20 Jul 2026 16:22:17 +0530 Message-Id: <20260720105218.14277-6-atrajeev@linux.ibm.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20260720105218.14277-1-atrajeev@linux.ibm.com> References: <20260720105218.14277-1-atrajeev@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: jnvNk4_SIOGcBP2lne5cB3zE4KHDKQQ1 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIwMDExOSBTYWx0ZWRfX0Jmx5SSBuK3H 9vL0LOI8qcQAxOZI7mECj7Vn8LaOHfw5YOml84xL2n+tmEAvTRJf1aljIE0MJ12uOygg4DXdQd4 4oJE8PnPT4kfEmyY/o9OF+pRbz/O5lk= X-Proofpoint-GUID: JLgSEY9JjIJrPuAN6bRhTRu_YESKNwqA X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDExOSBTYWx0ZWRfX5UIifspsVdSr lmCqmViideY52wPHhSLtwv5xALEONH+Rtdopax1f6PuyDsH8pBBBFFlw2V4ihZHf3OYLloDzzhY ZbbcFT6sm4ToEqqShBOa+h0Jb7749afQ102ckKmKyXcyJanww7yDiA9VPWMn/aL2r7YgcpxZpyN eWBr/uCMaK5dJGmlcZ+DxbcfPf46ohxbCOnEPzEzVYWwwvgJuocEzH8J9CWZ1ztsmYlPS+YcNkW KvXT024fc3Kg2EcUvjQ2L5TEQbbJGM2NPKQMsOKF5WUxcBJOFF8aEgz7i4FebTAm0I9GwcUpS1s bcXbZRmv1/Y/1nzCQiN/FZeZRtw0z06+dYgkdyNB7kVoq28LAYAoZSgBPKQ+ryX0DBufHuxQhaW JvDL9qW8dX7YGfigtVq1hl4F1+rKyZdReGuPeYJKu5zNEcQIqErLV7dKAnsHNiq+vCqz4FZFE5Q 5KQjq6MFAgTlfugAzwA== X-Authority-Analysis: v=2.4 cv=K7AS2SWI c=1 sm=1 tr=0 ts=6a5e00b9 cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=ofXt-N-APMp9VAbjTHMA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-20_02,2026-07-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 clxscore=1015 priorityscore=1501 spamscore=0 phishscore=0 malwarescore=0 adultscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200119 Add the PERF_AUXTRACE_POWERPC_HTM enum value to auxtrace.h and wire the dispatch in perf_event__process_auxtrace_info() to call powerpc_htm_process_auxtrace_info(). This patch sets auxtrace_info->type = PERF_AUXTRACE_POWERPC_HTM in htm_info_fill() (introduced in the previous patch) now that the constant is defined, completing the record-side setup. Signed-off-by: Athira Rajeev --- Changes in V2: - Scope narrowed: this patch now only adds the PERF_AUXTRACE_POWERPC_HTM enum constant to auxtrace.h and wires the dispatch in perf_event__process_auxtrace_info() to call powerpc_htm_process_auxtrace_info(). It also amends htm_info_fill() (from patch 2) to set auxtrace_info->type now that the constant is defined. - All file-writing and decoding logic is moved to patch 6. - Patch is now 5/6 instead of 5/9. tools/perf/arch/powerpc/util/htm.c | 2 +- tools/perf/util/Build | 1 + tools/perf/util/auxtrace.c | 4 + tools/perf/util/auxtrace.h | 1 + tools/perf/util/powerpc-htm.c | 115 +++++++++++++++++++++++++++++ 5 files changed, 122 insertions(+), 1 deletion(-) create mode 100644 tools/perf/util/powerpc-htm.c diff --git a/tools/perf/arch/powerpc/util/htm.c b/tools/perf/arch/powerpc/util/htm.c index 07b496e4be2f..9555cf356617 100644 --- a/tools/perf/arch/powerpc/util/htm.c +++ b/tools/perf/arch/powerpc/util/htm.c @@ -99,7 +99,7 @@ htm_info_fill(struct auxtrace_record *itr, if (priv_size != HTM_AUXTRACE_PRIV_SIZE(expected_n)) return -EINVAL; - // To set: auxtrace_info->type + auxtrace_info->type = PERF_AUXTRACE_POWERPC_HTM; auxtrace_info->priv[POWERPC_HTM_PMU_TYPE] = htm_r->evsel->core.attr.type; auxtrace_info->priv[POWERPC_HTM_NUM_EVENTS] = expected_n; diff --git a/tools/perf/util/Build b/tools/perf/util/Build index 330311cac550..7fa354853d2a 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -141,6 +141,7 @@ perf-util-y += hisi-ptt.o perf-util-y += hisi-ptt-decoder/ perf-util-y += s390-cpumsf.o perf-util-y += powerpc-vpadtl.o +perf-util-y += powerpc-htm.o ifdef CONFIG_LIBOPENCSD perf-util-y += cs-etm.o diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 0b851f32e98c..9f32f54fad43 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -56,6 +56,7 @@ #include "s390-cpumsf.h" #include "util/mmap.h" #include "powerpc-vpadtl.h" +#include "powerpc-htm.h" #include #include "symbol/kallsyms.h" @@ -1427,6 +1428,9 @@ int perf_event__process_auxtrace_info(const struct perf_tool *tool __maybe_unuse case PERF_AUXTRACE_VPA_DTL: err = powerpc_vpadtl_process_auxtrace_info(event, session); break; + case PERF_AUXTRACE_POWERPC_HTM: + err = powerpc_htm_process_auxtrace_info(event, session); + break; case PERF_AUXTRACE_UNKNOWN: default: return -EINVAL; diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index 6947f3f284c0..68b17802a419 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -46,6 +46,7 @@ enum auxtrace_type { PERF_AUXTRACE_S390_CPUMSF, PERF_AUXTRACE_HISI_PTT, PERF_AUXTRACE_VPA_DTL, + PERF_AUXTRACE_POWERPC_HTM, }; enum itrace_period_type { diff --git a/tools/perf/util/powerpc-htm.c b/tools/perf/util/powerpc-htm.c new file mode 100644 index 000000000000..8d28d02031d6 --- /dev/null +++ b/tools/perf/util/powerpc-htm.c @@ -0,0 +1,115 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include +#include +#include +#include "util/evsel.h" +#include "util/evlist.h" +#include "util/session.h" +#include "color.h" +#include "powerpc-htm.h" +#include "debug.h" +#include "sample.h" + +struct powerpc_htm { + struct auxtrace auxtrace; + struct auxtrace_queues queues; + struct auxtrace_heap heap; + u32 auxtrace_type; + struct perf_session *session; + struct machine *machine; +}; + +static void powerpc_htm_dump_event(size_t len) +{ + const char *color = PERF_COLOR_BLUE; + + if (dump_trace) { + color_fprintf(stdout, color, + ". ... HTM PMU data: size %zu bytes\n", len); + } +} + +static int powerpc_htm_process_event(struct perf_session *session __maybe_unused, + union perf_event *event __maybe_unused, + struct perf_sample *sample __maybe_unused, + const struct perf_tool *tool __maybe_unused) +{ + return 0; +} + +static int powerpc_htm_process_auxtrace_event(struct perf_session *session __maybe_unused, + union perf_event *event, + const struct perf_tool *tool __maybe_unused) +{ + if (dump_trace) + powerpc_htm_dump_event(event->auxtrace.size); + + return 0; +} + +static int powerpc_htm_flush(struct perf_session *session __maybe_unused, + const struct perf_tool *tool __maybe_unused) +{ + return 0; +} + +static void powerpc_htm_free_events(struct perf_session *session) +{ + struct powerpc_htm *htm; + + if (!session || !session->auxtrace) + return; + + htm = container_of(session->auxtrace, struct powerpc_htm, auxtrace); + auxtrace_queues__free(&htm->queues); +} + +static void powerpc_htm_free(struct perf_session *session) +{ + struct powerpc_htm *htm; + + if (!session || !session->auxtrace) + return; + + htm = container_of(session->auxtrace, struct powerpc_htm, auxtrace); + powerpc_htm_free_events(session); + session->auxtrace = NULL; + free(htm); +} + +int powerpc_htm_process_auxtrace_info(union perf_event *event, + struct perf_session *session) +{ + struct perf_record_auxtrace_info *auxtrace_info = &event->auxtrace_info; + struct powerpc_htm *htm; + int err; + + if (auxtrace_info->header.size < sizeof(struct perf_record_auxtrace_info) + + HTM_AUXTRACE_PRIV_FIXED) + return -EINVAL; + + htm = zalloc(sizeof(struct powerpc_htm)); + if (!htm) + return -ENOMEM; + + err = auxtrace_queues__init(&htm->queues); + if (err) { + free(htm); + return err; + } + + htm->session = session; + htm->machine = &session->machines.host; + htm->auxtrace.process_event = powerpc_htm_process_event; + htm->auxtrace.process_auxtrace_event = powerpc_htm_process_auxtrace_event; + htm->auxtrace.flush_events = powerpc_htm_flush; + htm->auxtrace.free_events = powerpc_htm_free_events; + htm->auxtrace.free = powerpc_htm_free; + session->auxtrace = &htm->auxtrace; + + return 0; +} -- 2.43.0