From nobody Fri Dec 19 12:16:32 2025 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 4FBC019D074; Tue, 27 Aug 2024 16:44:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724777078; cv=none; b=S7ANmoR8hP/J4v/XnwF1ttlJinL/5HD4WCHBtHcQEkbRKQzenl3Y3sBSKXmzNwovoh0LKC6BRNG09XgMojS23BJImEl1OUBGKAQYiLhU34ktXKLmxgOi30ZQdqnPT+qYaVntGTTx02ckfWrtHTVb5FL3zl4974BqIKBDbG75a6Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724777078; c=relaxed/simple; bh=pAZKt0NQx38DBQ/JAdEOV6YeNTGVr3iOfC59HNAd2sk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=DlH2VmVwmTl8Nvs4e6x5NYFtI+8v3q7AUzxPtaV+CYHlBLPDClki+F5fa33UJFu8Otv9DbbTOKT/au4+6W9NMniWxwM20hyxuMVAe7EmObB/qUmNv1MLqJOE0vboGxXxXGk4vfMXip6oVGGkN1KO7j0K3HrjlbakHQ4nEzQ9Iso= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D8E3E11FB; Tue, 27 Aug 2024 09:45:01 -0700 (PDT) Received: from e132581.cambridge.arm.com (e132581.arm.com [10.2.76.71]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 8B8163F762; Tue, 27 Aug 2024 09:44:33 -0700 (PDT) From: Leo Yan To: Arnaldo Carvalho de Melo , Will Deacon , Mark Rutland , Suzuki K Poulose , Mike Leach , James Clark , John Garry , Namhyung Kim , Ian Rogers , Adrian Hunter , "Liang, Kan" , Jonathan Cameron , Yicong Yang , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, coresight@lists.linaro.org, linux-perf-users@vger.kernel.org Cc: Leo Yan Subject: [PATCH v1 1/9] perf: arm_spe: Introduce 'lds' capacity Date: Tue, 27 Aug 2024 17:44:09 +0100 Message-Id: <20240827164417.3309560-2-leo.yan@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240827164417.3309560-1-leo.yan@arm.com> References: <20240827164417.3309560-1-leo.yan@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This commit adds a new entry 'lds' in the capacity folder. 'lds' stands for "loaded data source". When its value is 1, it indicates the data source implemented, and data source packets will be recorded in the trace data. Signed-off-by: Leo Yan --- drivers/perf/arm_spe_pmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c index 9100d82bfabc..81c1e7627721 100644 --- a/drivers/perf/arm_spe_pmu.c +++ b/drivers/perf/arm_spe_pmu.c @@ -110,6 +110,7 @@ enum arm_spe_pmu_buf_fault_action { /* This sysfs gunk was really good fun to write. */ enum arm_spe_pmu_capabilities { SPE_PMU_CAP_ARCH_INST =3D 0, + SPE_PMU_CAP_LDS, SPE_PMU_CAP_ERND, SPE_PMU_CAP_FEAT_MAX, SPE_PMU_CAP_CNT_SZ =3D SPE_PMU_CAP_FEAT_MAX, @@ -118,6 +119,7 @@ enum arm_spe_pmu_capabilities { =20 static int arm_spe_pmu_feat_caps[SPE_PMU_CAP_FEAT_MAX] =3D { [SPE_PMU_CAP_ARCH_INST] =3D SPE_PMU_FEAT_ARCH_INST, + [SPE_PMU_CAP_LDS] =3D SPE_PMU_FEAT_LDS, [SPE_PMU_CAP_ERND] =3D SPE_PMU_FEAT_ERND, }; =20 @@ -160,6 +162,7 @@ static ssize_t arm_spe_pmu_cap_show(struct device *dev, =20 static struct attribute *arm_spe_pmu_cap_attr[] =3D { SPE_CAP_EXT_ATTR_ENTRY(arch_inst, SPE_PMU_CAP_ARCH_INST), + SPE_CAP_EXT_ATTR_ENTRY(lds, SPE_PMU_CAP_LDS), SPE_CAP_EXT_ATTR_ENTRY(ernd, SPE_PMU_CAP_ERND), SPE_CAP_EXT_ATTR_ENTRY(count_size, SPE_PMU_CAP_CNT_SZ), SPE_CAP_EXT_ATTR_ENTRY(min_interval, SPE_PMU_CAP_MIN_IVAL), --=20 2.34.1