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[86.131.79.192]) by smtp.gmail.com with ESMTPSA id m6-20020a056000008600b002cde25fba30sm30067163wrx.1.2023.03.29.04.14.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Mar 2023 04:14:25 -0700 (PDT) From: Mike Leach To: linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org, linux-kernel@vger.kernel.org, acme@kernel.org, suzuki.poulose@arm.com Cc: leo.yan@linaro.org, peterz@infradead.org, mingo@redhat.com, will@kernel.org, john.garry@huawei.com, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, gankulkarni@os.amperecomputing.com, darren@os.amperecomputing.com, Mike Leach Subject: [PATCH v8 0/3] perf: cs-etm: Update perf to handle new Coresight Trace ID Date: Wed, 29 Mar 2023 12:14:19 +0100 Message-Id: <20230329111422.3693-1-mike.leach@linaro.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-Spam-Status: No, score=-0.2 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761701857927366309?= X-GMAIL-MSGID: =?utf-8?q?1761701995433210942?= The original method for allocating trace source ID values to sources was to use a fixed algorithm for CPU based sources of (cpu_num * 2 + 0x10). The STM was allocated ID 0x1. This mechanism is broken for systems with more than 47 cores. The kernel related patches the provide a fixed Trace ID allocation mechanism are now upstreamed. This patchset updates the perf code to handle the changes to the trace ID notification mechanism that now uses the PERF_RECORD_AUX_OUTPUT_HW_ID packet to set Trace ID in the perf ETM decoders. Applies to perf/core Changes since v7: Split from original patchset [1] to be sent separately as kernel related patches are now upstream. [1] https://lore.kernel.org/linux-arm-kernel/20230116124928.5440-1-mike.leach@linaro.org/ Mike Leach (3): perf: cs-etm: Move mapping of Trace ID and cpu into helper function perf: cs-etm: Update record event to use new Trace ID protocol perf: cs-etm: Handle PERF_RECORD_AUX_OUTPUT_HW_ID packet tools/include/linux/coresight-pmu.h | 47 ++- tools/perf/arch/arm/util/cs-etm.c | 21 +- .../perf/util/cs-etm-decoder/cs-etm-decoder.c | 7 + tools/perf/util/cs-etm.c | 326 +++++++++++++++--- tools/perf/util/cs-etm.h | 14 +- 5 files changed, 350 insertions(+), 65 deletions(-)