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2023-11-16Documentation: coresight: Add cc_threshold tunableAnshuman Khandual1-0/+4
This updates config option to include 'cc_threshold' tunable value. Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: James Clark <james.clark@arm.com> 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 <mike.leach@linaro.org> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20230921033631.1298723-4-anshuman.khandual@arm.com
2023-11-16Documentation: coresight: fix `make refcheckdocs` warningVegard Nossum1-1/+1
This reference uses a glob pattern to match multiple files, but the asterisk was escaped as \* in order to not be interpreted by sphinx as reStructuredText markup. refcheckdocs/documentation-file-ref-check doesn't know about rST syntax and tries to interpret the \* literally (instead of as a glob). We can work around the warning by putting the Documentation reference inside double backticks (``..``), which allows us to not escape the asterisk. Fixes: c06475910b52 ("Documentation: coresight: Escape coresight bindings file wildcard") Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Rob Herring <robh@kernel.org> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-next@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20231022185806.919434-1-vegard.nossum@oracle.com
2022-07-06Documentation: coresight: Link config options to existing documentationJames Clark1-0/+39
In order to document the newly added branch_broadcast option, create a table that links all of the config option formats to any existing docs. That way when the branch broadcast docs are expanded they are accessible from both places. Signed-off-by: James Clark <james.clark@arm.com> Reviewed-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20220511144601.2257870-4-james.clark@arm.com
2022-07-06Documentation: coresight: Turn numbered subsections into real subsectionsJames Clark1-5/+12
This is to allow them to be referenced in a later commit. There was also a mistake where sysFS was introduced as section 2, but numbered as section 1. And vice versa for 'Using perf framework'. This can't happen with unnumbered sections. Signed-off-by: James Clark <james.clark@arm.com> Reviewed-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20220511144601.2257870-3-james.clark@arm.com
2022-06-30Documentation: coresight: Escape coresight bindings file wildcardBagas Sanjaya1-1/+1
Stephen Rothwell reported htmldocs warning: Documentation/trace/coresight/coresight.rst:133: WARNING: Inline emphasis start-string without end-string. The warning above is due to unescaped wildcard asterisk (*) on CoreSight devicetree binding filename, which confuses Sphinx as emphasis instead. Escape the wildcard to fix the warning. Link: https://lore.kernel.org/linux-next/20220630173801.41bf22a2@canb.auug.org.au/ Fixes: 3c15fddf312120 ("dt-bindings: arm: Convert CoreSight bindings to DT schema") Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Rob Herring <robh@kernel.org> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-next@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Link: https://lore.kernel.org/r/20220630101317.102680-1-bagasdotme@gmail.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-06-29dt-bindings: arm: Convert CoreSight bindings to DT schemaRob Herring1-1/+1
Each CoreSight component has slightly different requirements and nothing applies to every component, so each CoreSight component has its own schema document. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20220603011933.3277315-3-robh@kernel.org Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2021-08-18Documentation: coresight: Add documentation for CoreSight configMike Leach1-0/+15
Adds documentation for the CoreSight System configuration manager. Link: https://lore.kernel.org/r/20210723165444.1048-11-mike.leach@linaro.org [Fixed coresight-config.rst documentation link] Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Signed-off-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210818194022.379573-11-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-17docs: trace: coresight: coresight.rst: avoid using ReST :doc:`foo` markupMauro Carvalho Chehab1-3/+5
The :doc:`foo` tag is auto-generated via automarkup.py. So, use the filename at the sources, instead of :doc:`foo`. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/c79be625f7c90468e13d5380f0e4e1c1ccfa2fc8.1623824363.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-02-11Documentation: coresight: Add PID tracing descriptionLeo Yan1-0/+32
After support the PID tracing for the kernel in EL1 or EL2, the usage gets more complicated. This patch gives description for the PMU formats of contextID configs, this can help users to understand how to control the knobs for PID tracing when the kernel is in different ELs. Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210206150833.42120-9-leo.yan@linaro.org Link: https://lore.kernel.org/r/20210211172038.2483517-4-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-19coresight: docs: Add information about the topology representationsMike Leach1-0/+85
Update the CoreSight documents to describe the new connections directory and the links between CoreSight devices in this directory. Signed-off-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20200518180242.7916-7-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-21docs: coresight: Update documentation for CoreSight to cover CTIMike Leach1-0/+13
Add new document covering CTI / CTM usage in CoreSight. Add section in coresight.rst introducing CTI and CTM modules with link to new document. Signed-off-by: Mike Leach <mike.leach@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20200320165303.13681-11-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07coresight: docs: Create common sub-directory for coresight trace.Mike Leach1-0/+498
There are two files in the Documentation/trace directory relating to coresight, with more to follow, so create a Documentation/trace/coresight directory and move existing files there. Fixup index to reference new location. Update MAINTAINERS to reference this sub-directory rather than the individual files. Signed-off-by: Mike Leach <mike.leach@linaro.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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