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[103.229.18.19]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-2e300b851b9sm5152715ad.78.2026.09.30.22.24.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Sep 2026 22:24:27 -0700 (PDT) From: Mayuresh Chitale To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Palmer Dabbelt , Paul Walmsley , Greg KH , Alexander Shishkin , Ian Rogers Cc: Mayuresh Chitale , Alexandre Ghiti , Peter Zijlstra , Ingo Molnar , Namhyung Kim , Mark Rutland , Jiri Olsa , Adrian Hunter , Mayuresh Chitale , Anup Patel , Atish Patra , Andrew Jones , Sunil V L , linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Zane Leung Subject: [PATCH v6 08/14] perf: Add gtrace AUX buffer trace format type Date: Thu, 1 Oct 2026 10:52:19 +0530 Message-ID: <20261001052243.3042627-9-mayuresh.chitale@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261001052243.3042627-1-mayuresh.chitale@oss.qualcomm.com> References: <20261001052243.3042627-1-mayuresh.chitale@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDAxMDAyMSBTYWx0ZWRfX5Qdk2cK/l9QA m6PuYzPML0mQkuOZhUpdF9mYgRpw7+x5uD1ArvTA4I1loVr7H+RvOVG1LkFfRR/epwpqh9JIa2p l4nyQbiw3kLWCMh12I200yGy/NEMfVP30mConRPPk34OlRLttt1wuMaiOD9r2niJ0K9miczf9MI J1xh2SKcU7/XtCwlO4uIyXxmeucbh5zHSl8pPquME4ELNwyfybBJ2MQpIEG6O+ghC1QaZzO8E4G NuBXPQVscdEATDqI4/by0qgxI7fQbEOlUuwKPFPJMlcN2eRVj1jKCWDLZK7KlbRrCLX/2lLcaEg xeXkST6tYRZ47DkSol3rRV/Z2CDM4ca/gPgEog4tPklCb67T5zxJuLJp37Am9JxwcelCx7Bw36F Wl+m4IuXxObqUb+tD79+ot7sANbI17PEW8dDGBz4/bz2fWJi4RbZxuCHuamIJSSMpDKatTrKda7 ZBmc4nnl01LUEfvl6IA== X-Proofpoint-GUID: RLQWc3cqlhpKjmqr_qVAJozYTtg9lbpT X-Proofpoint-Spam-Info: AW1haW4tMjYxMDAxMDAyMSBTYWx0ZWRfX3OChYLy+5NZy GYl8W2m+JnwVBDlP2PkbyKFmClkvKlGZPeH+z98/mYazwGyzRO5repB1hqdbuBjSNgx65DQIpMc W5p4btQQZE/HrUiAeIOofPOlXx10LWg= X-Authority-Analysis: v=2.4 cv=S51MU4sP c=1 sm=1 tr=0 ts=6abdee8d cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=EjOQMhZftjg6WCmXgxIA:9 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-ORIG-GUID: RLQWc3cqlhpKjmqr_qVAJozYTtg9lbpT X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-01_02,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 lowpriorityscore=0 spamscore=0 adultscore=0 bulkscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610010021 The gtrace PMU can host trace components of different architectures and trace protocols, so the recorded AUX data needs to carry its format as well. Define PERF_AUX_FLAG_GTRACE_FORMAT_ETRACE for the RISC-V E-trace format which the perf tool can use to decode the payload. Signed-off-by: Mayuresh Chitale --- include/uapi/linux/perf_event.h | 5 +++++ tools/include/uapi/linux/perf_event.h | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index fd10aa8d697f..2ac00a409a04 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -1311,6 +1311,11 @@ enum perf_callchain_context { #define PERF_AUX_FLAG_CORESIGHT_FORMAT_CORESIGHT 0x0000 /* Default for backward compatibility */ #define PERF_AUX_FLAG_CORESIGHT_FORMAT_RAW 0x0100 /* Raw format of the source */ +/* gtrace PMU AUX buffer formats */ +#define PERF_AUX_FLAG_GTRACE_FORMAT_UNKNOWN 0x0000 +#define PERF_AUX_FLAG_GTRACE_FORMAT_ETRACE 0x0100 /* RISC-V E-trace format */ +#define PERF_AUX_FLAG_GTRACE_FORMAT_NTRACE 0x0200 /* RISC-V N-Trace format */ + #define PERF_FLAG_FD_NO_GROUP (1UL << 0) #define PERF_FLAG_FD_OUTPUT (1UL << 1) #define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup ID, per-CPU mode only */ diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index fd10aa8d697f..2ac00a409a04 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -1311,6 +1311,11 @@ enum perf_callchain_context { #define PERF_AUX_FLAG_CORESIGHT_FORMAT_CORESIGHT 0x0000 /* Default for backward compatibility */ #define PERF_AUX_FLAG_CORESIGHT_FORMAT_RAW 0x0100 /* Raw format of the source */ +/* gtrace PMU AUX buffer formats */ +#define PERF_AUX_FLAG_GTRACE_FORMAT_UNKNOWN 0x0000 +#define PERF_AUX_FLAG_GTRACE_FORMAT_ETRACE 0x0100 /* RISC-V E-trace format */ +#define PERF_AUX_FLAG_GTRACE_FORMAT_NTRACE 0x0200 /* RISC-V N-Trace format */ + #define PERF_FLAG_FD_NO_GROUP (1UL << 0) #define PERF_FLAG_FD_OUTPUT (1UL << 1) #define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup ID, per-CPU mode only */ -- 2.43.0