From 1f82d58ddbe21ed75c04d04403d8268a95e0190a Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Fri, 12 Apr 2024 17:10:56 +0100 Subject: [PATCH] Documentation: ABI + trace: hisi_ptt: update paths to bus/event_source 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. Reviewed-by: Yicong Yang Signed-off-by: Jonathan Cameron Signed-off-by: Suzuki K Poulose Link: https://lore.kernel.org/r/20240412161057.14099-30-Jonathan.Cameron@huawei.com --- ...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(-) rename Documentation/ABI/testing/{sysfs-devices-hisi_ptt => sysfs-bus-event_source-devices-hisi_ptt} (90%) diff --git a/Documentation/ABI/testing/sysfs-devices-hisi_ptt b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt similarity index 90% rename from Documentation/ABI/testing/sysfs-devices-hisi_ptt rename to Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt index d7e206b4901c..1119766564d7 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 989255eb5622..6eef28ebb0c7 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 c23fda1aa1f0..63a55f1559f4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9790,7 +9790,7 @@ 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