Hi,
Thanks for your comments and review in the previous submission (and sorry for not including a cover letter this time).
Do you want me to hold on this change, or update the corresponding fields with new estimates?
Thanks, German
On 03/05/2022 13:35, German Gomez wrote:
Sync sysfs documentation pages to include the new ts_source (timestamp source) interface.
Signed-off-by: German Gomez german.gomez@arm.com
v1: - https://lore.kernel.org/all/20220429123100.268059-3-german.gomez@arm.com/ v2: - Update Data, KernelVersion, and Contact fields (Date is tentative but likely).
.../ABI/testing/sysfs-bus-coresight-devices-etm4x | 8 ++++++++ .../trace/coresight/coresight-etm4x-reference.rst | 14 ++++++++++++++ 2 files changed, 22 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x index 8e53a32f81505..520dd2e27eab3 100644 --- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x @@ -516,3 +516,11 @@ Contact: Mathieu Poirier mathieu.poirier@linaro.org Description: (Read) Returns the number of special conditional P1 right-hand keys that the trace unit can use (0x194). The value is taken directly from the HW.
+What: /sys/bus/coresight/devices/etm<N>/ts_source +Date: July 2022 +KernelVersion: 5.19 +Contact: Mathieu Poirier mathieu.poirier@linaro.org or Suzuki K Poulose suzuki.poulose@arm.com +Description: (Read) When FEAT_TRF is implemented, value of TRFCR_ELx.TS used for
trace session. Otherwise -1 indicates an unknown time source. Checktrcidr0.tssize to see if a global timestamp is available.diff --git a/Documentation/trace/coresight/coresight-etm4x-reference.rst b/Documentation/trace/coresight/coresight-etm4x-reference.rst index d25dfe86af9bf..f016c7c29429b 100644 --- a/Documentation/trace/coresight/coresight-etm4x-reference.rst +++ b/Documentation/trace/coresight/coresight-etm4x-reference.rst @@ -71,6 +71,20 @@ the ‘TRC’ prefix.
+:File: ``ts_source`` (ro) +:Trace Registers: None. +:Notes:
- When FEAT_TRF is implemented, value of TRFCR_ELx.TS used for trace session. Otherwise -1
- indicates an unknown time source. Check trcidr0.tssize to see if a global timestamp is
- available.
+:Example:
- ``$> cat ts_source``
- ``$> 1``
+----
:File: ``addr_idx`` (rw) :Trace Registers: None. :Notes: