[PATCH V4 3/3] Documentation: coresight: Add cc_threshold tunable
From: Anshuman Khandual <hidden>
Date: 2023-08-18 11:21:57
Also in:
linux-doc, lkml
Subsystem:
arm/coresight framework and drivers, documentation, the rest, tracing · Maintainers:
Suzuki K Poulose, Jonathan Corbet, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
This updates config option to include 'cc_threshold' tunable value. Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mike Leach <redacted> Cc: James Clark <redacted> Cc: Jonathan Corbet <corbet@lwn.net> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed by: Mike Leach [off-list ref] Signed-off-by: Anshuman Khandual <redacted> --- Documentation/trace/coresight/coresight.rst | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/Documentation/trace/coresight/coresight.rst b/Documentation/trace/coresight/coresight.rst
index 4a71ea6cb390..ce55adb80b82 100644
--- a/Documentation/trace/coresight/coresight.rst
+++ b/Documentation/trace/coresight/coresight.rst@@ -624,6 +624,10 @@ They are also listed in the folder /sys/bus/event_source/devices/cs_etm/format/ * - timestamp - Session local version of the system wide setting: :ref:`ETMv4_MODE_TIMESTAMP <coresight-timestamp>` + * - cc_threshold + - Cycle count threshold value. If nothing is provided here or the provided value is 0, then the + default value i.e 0x100 will be used. If provided value is less than minimum cycles threshold + value, as indicated via TRCIDR3.CCITMIN, then the minimum value will be used instead. How to use the STM module -------------------------
--
2.25.1
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