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Rao" , Kemeng Shi , James Clark , Wei Li , Al Grant , Will Deacon , Mathieu Poirier , Mike Leach , linux-kernel@vger.kernel.org Cc: Leo Yan Subject: [PATCH v2 10/14] perf arm-spe: Store operation types in packet Date: Tue, 1 Sep 2020 09:38:11 +0100 Message-Id: <20200901083815.13755-11-leo.yan@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200901083815.13755-1-leo.yan@linaro.org> References: <20200901083815.13755-1-leo.yan@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch is to store operation types into packet structure, this can be used by frontend to generate memory accessing info for samples. Signed-off-by: Leo Yan --- tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 11 +++++++++++ tools/perf/util/arm-spe-decoder/arm-spe-decoder.h | 6 ++++++ 2 files changed, 17 insertions(+) diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c index 1c430657939f..7bf787c47f5b 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c @@ -170,6 +170,17 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder) case ARM_SPE_CONTEXT: break; case ARM_SPE_OP_TYPE: + /* + * When operation type packet header's class equals 1, + * the payload's least significant bit (LSB) indicates + * the operation type: load/swap or store. + */ + if (idx == 1) { + if (payload & 0x1) + decoder->record.op = ARM_SPE_ST; + else + decoder->record.op = ARM_SPE_LD; + } break; case ARM_SPE_EVENTS: if (payload & SPE_EVT_PKT_L1D_REFILL) diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h index 31d1776785de..3273cee95ea1 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h @@ -24,9 +24,15 @@ enum arm_spe_sample_type { ARM_SPE_REMOTE_ACCESS = 1 << 7, }; +enum arm_spe_op_type { + ARM_SPE_LD = 1 << 0, + ARM_SPE_ST = 1 << 1, +}; + struct arm_spe_record { enum arm_spe_sample_type type; int err; + u32 op; u64 from_ip; u64 to_ip; u64 timestamp; -- 2.20.1