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Rao" , Ian Rogers , Kemeng Shi , James Clark , Wei Li , Adrian Hunter , Al Grant , linux-kernel@vger.kernel.org Cc: Leo Yan Subject: [PATCH v1 09/11] perf arm-spe: Store operation types in packet Date: Thu, 6 Aug 2020 10:40:39 +0800 Message-Id: <20200806024041.27475-10-leo.yan@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200806024041.27475-1-leo.yan@linaro.org> References: <20200806024041.27475-1-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 373dc2d1cf06..cba394784b0d 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c @@ -172,6 +172,17 @@ 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 & BIT(EV_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 5acddfcffbd1..f23188282ef0 100644 --- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h +++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h @@ -41,9 +41,15 @@ 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; -- 2.17.1