On 2023/4/4 21:42, Jonathan Cameron wrote: > 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 <Jonathan.Cameron@xxxxxxxxxx> Reviewed-by: Yicong Yang <yangyicong@xxxxxxxxxxxxx> > --- > ...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<sicl_id>_<core_id>/tune > +What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune > Date: October 2022 > KernelVersion: 6.1 > Contact: Yicong Yang <yangyicong@xxxxxxxxxxxxx> > @@ -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<sicl_id>_<core_id>/tune/qos_tx_cpl > +What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_cpl > Date: October 2022 > KernelVersion: 6.1 > Contact: Yicong Yang <yangyicong@xxxxxxxxxxxxx> > @@ -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<sicl_id>_<core_id>/tune/qos_tx_np > +What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_np > Date: October 2022 > KernelVersion: 6.1 > Contact: Yicong Yang <yangyicong@xxxxxxxxxxxxx> > @@ -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<sicl_id>_<core_id>/tune/qos_tx_p > +What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_p > Date: October 2022 > KernelVersion: 6.1 > Contact: Yicong Yang <yangyicong@xxxxxxxxxxxxx> > @@ -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<sicl_id>_<core_id>/tune/rx_alloc_buf_level > +What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/rx_alloc_buf_level > Date: October 2022 > KernelVersion: 6.1 > Contact: Yicong Yang <yangyicong@xxxxxxxxxxxxx> > @@ -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<sicl_id>_<core_id>/tune/tx_alloc_buf_level > +What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/tx_alloc_buf_level > Date: October 2022 > KernelVersion: 6.1 > Contact: Yicong Yang <yangyicong@xxxxxxxxxxxxx> > 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<sicl_id>_<core_id> > + /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id> > > 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<sicl_id>_<core_id>/tune > + $ cd /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/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 <yangyicong@xxxxxxxxxxxxx> > M: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx> > L: linux-kernel@xxxxxxxxxxxxxxx > 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 >
