From patchwork Thu Nov 10 08:51:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yicong Yang X-Patchwork-Id: 13038468 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E66B3C4332F for ; Thu, 10 Nov 2022 08:53:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=aylQ3RsP0Q1hPhd0D/3VLnPxo8KDNWN0iHpm29IK8t0=; b=t8hCygtafG6WVR 6Qe8lh43tx7xyV5zpzzBx0+l1r5EBVmQCwbK8r7MXay3tmMkP60Xp03B/9NK0+t5n6s7UaPm0tppH 2KVrONb1qyYrABs0gk2c1xWYPjltnZIqX8DmdFFJqkgCN4dcizVojudXHIOn25zsZzwVL8KloDf4d qnvoKzyWW1uTLicIIRhfAB8GP1ApNyuI+Dka+jpW9It1Cik8cAEbno6SvTKoShJ7tgp8N7x0L9cIC VDQxoGM4n/mjsBtiseZ5+cOL6xjd7p9V+w4v61CqmzefsYBb+zLPPVsm7m6+J9wIkhI/MJp0yi9xQ V8yOAJ9BDL6vZ5QkLpdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ot3IO-004LH6-0S; Thu, 10 Nov 2022 08:52:24 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ot3I5-004Kxj-HI for linux-arm-kernel@lists.infradead.org; Thu, 10 Nov 2022 08:52:07 +0000 Received: from canpemm500009.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4N7Fv25vfWzmVk8; Thu, 10 Nov 2022 16:51:42 +0800 (CST) Received: from localhost.localdomain (10.67.164.66) by canpemm500009.china.huawei.com (7.192.105.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 10 Nov 2022 16:51:57 +0800 From: Yicong Yang To: Shaokun Zhang , , Jonathan Corbet , Will Deacon , Mark Rutland , , CC: , , , , , , , Subject: [PATCH v2 2/4] docs: perf: Fix PMU instance name of hisi-pcie-pmu Date: Thu, 10 Nov 2022 16:51:07 +0800 Message-ID: <20221110085109.45227-3-yangyicong@huawei.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20221110085109.45227-1-yangyicong@huawei.com> References: <20221110085109.45227-1-yangyicong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.164.66] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500009.china.huawei.com (7.192.105.203) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221110_005205_951387_14695620 X-CRM114-Status: GOOD ( 12.37 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Yicong Yang The PMU instance will be called hisi_pcie_core rather than hisi_pcie_. Fix this in the documentation. Fixes: c8602008e247 ("docs: perf: Add description for HiSilicon PCIe PMU driver") Reviewed-by: Jonathan Cameron Signed-off-by: Yicong Yang --- .../admin-guide/perf/hisi-pcie-pmu.rst | 22 +++++++++---------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/Documentation/admin-guide/perf/hisi-pcie-pmu.rst b/Documentation/admin-guide/perf/hisi-pcie-pmu.rst index 294ebbdb22af..bbe66480ff85 100644 --- a/Documentation/admin-guide/perf/hisi-pcie-pmu.rst +++ b/Documentation/admin-guide/perf/hisi-pcie-pmu.rst @@ -15,10 +15,10 @@ HiSilicon PCIe PMU driver The PCIe PMU driver registers a perf PMU with the name of its sicl-id and PCIe Core id.:: - /sys/bus/event_source/hisi_pcie_ + /sys/bus/event_source/hisi_pcie_core PMU driver provides description of available events and filter options in sysfs, -see /sys/bus/event_source/devices/hisi_pcie_. +see /sys/bus/event_source/devices/hisi_pcie_core. The "format" directory describes all formats of the config (events) and config1 (filter options) fields of the perf_event_attr structure. The "events" directory @@ -33,13 +33,13 @@ monitored by PMU. Example usage of perf:: $# perf list - hisi_pcie0_0/rx_mwr_latency/ [kernel PMU event] - hisi_pcie0_0/rx_mwr_cnt/ [kernel PMU event] + hisi_pcie0_core0/rx_mwr_latency/ [kernel PMU event] + hisi_pcie0_core0/rx_mwr_cnt/ [kernel PMU event] ------------------------------------------ - $# perf stat -e hisi_pcie0_0/rx_mwr_latency/ - $# perf stat -e hisi_pcie0_0/rx_mwr_cnt/ - $# perf stat -g -e hisi_pcie0_0/rx_mwr_latency/ -e hisi_pcie0_0/rx_mwr_cnt/ + $# perf stat -e hisi_pcie0_core0/rx_mwr_latency/ + $# perf stat -e hisi_pcie0_core0/rx_mwr_cnt/ + $# perf stat -g -e hisi_pcie0_core0/rx_mwr_latency/ -e hisi_pcie0_core0/rx_mwr_cnt/ The current driver does not support sampling. So "perf record" is unsupported. Also attach to a task is unsupported for PCIe PMU. @@ -64,7 +64,7 @@ bit8 is set, port=0x100; if these two Root Ports are both monitored, port=0x101. Example usage of perf:: - $# perf stat -e hisi_pcie0_0/rx_mwr_latency,port=0x1/ sleep 5 + $# perf stat -e hisi_pcie0_core0/rx_mwr_latency,port=0x1/ sleep 5 -bdf @@ -76,7 +76,7 @@ For example, "bdf=0x3900" means BDF of target Endpoint is 0000:39:00.0. Example usage of perf:: - $# perf stat -e hisi_pcie0_0/rx_mrd_flux,bdf=0x3900/ sleep 5 + $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,bdf=0x3900/ sleep 5 2. Trigger filter Event statistics start when the first time TLP length is greater/smaller @@ -90,7 +90,7 @@ means start when TLP length < condition. Example usage of perf:: - $# perf stat -e hisi_pcie0_0/rx_mrd_flux,trig_len=0x4,trig_mode=1/ sleep 5 + $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,trig_len=0x4,trig_mode=1/ sleep 5 3. Threshold filter Counter counts when TLP length within the specified range. You can set the @@ -103,4 +103,4 @@ when TLP length < threshold. Example usage of perf:: - $# perf stat -e hisi_pcie0_0/rx_mrd_flux,thr_len=0x4,thr_mode=1/ sleep 5 + $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,thr_len=0x4,thr_mode=1/ sleep 5