From patchwork Tue Apr 4 13:42:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13200294 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 472F8C77B60 for ; Tue, 4 Apr 2023 14:36:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235062AbjDDOfJ (ORCPT ); Tue, 4 Apr 2023 10:35:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39702 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234982AbjDDOfH (ORCPT ); Tue, 4 Apr 2023 10:35:07 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE4CE3AB5; Tue, 4 Apr 2023 07:35:05 -0700 (PDT) Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.201]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4PrTlC3p0bz67d2y; Tue, 4 Apr 2023 21:54:15 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Tue, 4 Apr 2023 14:58:13 +0100 From: Jonathan Cameron To: Mark Rutland , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Will Deacon , , , CC: , Dan Williams , Shaokun Zhang , Yicong Yang , Jiucheng Xu , Khuong Dinh , Robert Richter , Atish Patra , Anup Patel , Andy Gross , Bjorn Andersson , Frank Li , Shuai Xue , Vineet Gupta , Shawn Guo , Fenghua Yu , Dave Jiang , Wu Hao , Tom Rix , , Suzuki K Poulose , Liang Kan Subject: [PATCH 31/32] Documentation: ABI + trace: hisi_ptt: update paths to bus/event_source Date: Tue, 4 Apr 2023 14:42:24 +0100 Message-ID: <20230404134225.13408-32-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230404134225.13408-1-Jonathan.Cameron@huawei.com> References: <20230404134225.13408-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhrpeml500003.china.huawei.com (7.191.162.67) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-fpga@vger.kernel.org To allow for assigning a suitable parent to the struct pmu device update the documentation to describe the device via the event_source bus where it will remain accessible. For the ABI documention file also rename the file as it is named after the path. Signed-off-by: Jonathan Cameron Reviewed-by: Yicong Yang --- ...i_ptt => sysfs-bus-event_source-devices-hisi_ptt} | 12 ++++++------ Documentation/trace/hisi-ptt.rst | 4 ++-- MAINTAINERS | 2 +- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-devices-hisi_ptt b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt similarity index 83% rename from Documentation/ABI/testing/sysfs-devices-hisi_ptt rename to Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt index 82de6d710266..f2f48f7ce887 100644 --- a/Documentation/ABI/testing/sysfs-devices-hisi_ptt +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt @@ -1,4 +1,4 @@ -What: /sys/devices/hisi_ptt_/tune +What: /sys/bus/event_source/devices/hisi_ptt_/tune Date: October 2022 KernelVersion: 6.1 Contact: Yicong Yang @@ -8,7 +8,7 @@ Description: This directory contains files for tuning the PCIe link See Documentation/trace/hisi-ptt.rst for more information. -What: /sys/devices/hisi_ptt_/tune/qos_tx_cpl +What: /sys/bus/event_source/devices/hisi_ptt_/tune/qos_tx_cpl Date: October 2022 KernelVersion: 6.1 Contact: Yicong Yang @@ -18,7 +18,7 @@ Description: (RW) Controls the weight of Tx completion TLPs, which influence will return an error, and out of range values will be converted to 2. The value indicates a probable level of the event. -What: /sys/devices/hisi_ptt_/tune/qos_tx_np +What: /sys/bus/event_source/devices/hisi_ptt_/tune/qos_tx_np Date: October 2022 KernelVersion: 6.1 Contact: Yicong Yang @@ -28,7 +28,7 @@ Description: (RW) Controls the weight of Tx non-posted TLPs, which influence will return an error, and out of range values will be converted to 2. The value indicates a probable level of the event. -What: /sys/devices/hisi_ptt_/tune/qos_tx_p +What: /sys/bus/event_source/devices/hisi_ptt_/tune/qos_tx_p Date: October 2022 KernelVersion: 6.1 Contact: Yicong Yang @@ -38,7 +38,7 @@ Description: (RW) Controls the weight of Tx posted TLPs, which influence the will return an error, and out of range values will be converted to 2. The value indicates a probable level of the event. -What: /sys/devices/hisi_ptt_/tune/rx_alloc_buf_level +What: /sys/bus/event_source/devices/hisi_ptt_/tune/rx_alloc_buf_level Date: October 2022 KernelVersion: 6.1 Contact: Yicong Yang @@ -49,7 +49,7 @@ Description: (RW) Control the allocated buffer watermark for inbound packets. will return an error, and out of range values will be converted to 2. The value indicates a probable level of the event. -What: /sys/devices/hisi_ptt_/tune/tx_alloc_buf_level +What: /sys/bus/event_source/devices/hisi_ptt_/tune/tx_alloc_buf_level Date: October 2022 KernelVersion: 6.1 Contact: Yicong Yang diff --git a/Documentation/trace/hisi-ptt.rst b/Documentation/trace/hisi-ptt.rst index 4f87d8e21065..d923e09fcbaa 100644 --- a/Documentation/trace/hisi-ptt.rst +++ b/Documentation/trace/hisi-ptt.rst @@ -40,7 +40,7 @@ IO dies (SICL, Super I/O Cluster), where there's one PCIe Root Complex for each SICL. :: - /sys/devices/hisi_ptt_ + /sys/bus/event_source/devices/hisi_ptt_ Tune ==== @@ -53,7 +53,7 @@ Each event is presented as a file under $(PTT PMU dir)/tune, and a simple open/read/write/close cycle will be used to tune the event. :: - $ cd /sys/devices/hisi_ptt_/tune + $ cd /sys/bus/event_source/devices/hisi_ptt_/tune $ ls qos_tx_cpl qos_tx_np qos_tx_p tx_path_rx_req_alloc_buf_level diff --git a/MAINTAINERS b/MAINTAINERS index d8ebab595b2a..75019f62b1df 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9266,7 +9266,7 @@ M: Yicong Yang M: Jonathan Cameron L: linux-kernel@vger.kernel.org S: Maintained -F: Documentation/ABI/testing/sysfs-devices-hisi_ptt +F: Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt F: Documentation/trace/hisi-ptt.rst F: drivers/hwtracing/ptt/ F: tools/perf/arch/arm64/util/hisi-ptt.c