From: Mike Leach <mike.leach@linaro.org>
To: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org
Cc: mathieu.poirier@linaro.org, suzuki.poulose@arm.com,
leo.yan@linaro.org, Mike Leach <mike.leach@linaro.org>
Subject: [PATCH v3 0/6] coresight: syscfg: dynamic load
Date: Wed, 24 Nov 2021 20:00:32 +0000 [thread overview]
Message-ID: <20211124200038.28662-1-mike.leach@linaro.org> (raw)
1) API updated to allow dynamic load and unload of configurations and
features. Dependency management between loaded sets is added.
2) New configuration and feature sets can be added using a loadable module.
An example in /samples/coresight is provided to demonstrate this.
3) configfs can be used to activate a configuration which will then be used
when controlling tracing using sysfs.
Applies and tested on coresight/next - which is 5.16-rc1
Changes since v2: (requested by Mathieu)
a) Split first patch into two patches to introduce the concept of owner,
then use it to implement dynamic load / unload.
b) Renamed configfs configuration attributes used to enable and set
preset on configurations when using CoreSight with sysfs
c) Updated docs to reflect use of enable and preset attributes for sysfs
CoreSight control.
Changes since v1:
a) Original set split to divide related changes into smaller sets.
Removed RFC flag.
b) Revised config activation for sysfs to simplify common function.
(patch 4).
c) Minor changes requested by Mathieu added.
Mike Leach (6):
coresight: configuration: Update API to introduce load owner concept
coresight: configuration: Update API to permit dynamic load/unload
coresight: syscfg: Update load API for config loadable modules
coresight: syscfg: Example CoreSight configuration loadable module
coresight: configfs: Allow configfs to activate configuration
Documentation: coresight: Update coresight configuration docs
.../trace/coresight/coresight-config.rst | 62 +++-
MAINTAINERS | 1 +
.../coresight/coresight-cfg-preload.c | 9 +-
.../hwtracing/coresight/coresight-config.h | 9 +-
.../coresight/coresight-etm4x-core.c | 11 +-
.../coresight/coresight-syscfg-configfs.c | 87 +++++
.../coresight/coresight-syscfg-configfs.h | 4 +
.../hwtracing/coresight/coresight-syscfg.c | 315 ++++++++++++++++--
.../hwtracing/coresight/coresight-syscfg.h | 39 ++-
samples/Kconfig | 9 +
samples/Makefile | 1 +
samples/coresight/Makefile | 4 +
samples/coresight/coresight-cfg-sample.c | 73 ++++
13 files changed, 586 insertions(+), 38 deletions(-)
create mode 100644 samples/coresight/Makefile
create mode 100644 samples/coresight/coresight-cfg-sample.c
--
2.17.1
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next reply other threads:[~2021-11-24 20:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-24 20:00 Mike Leach [this message]
2021-11-24 20:00 ` [PATCH v3 1/6] coresight: configuration: Update API to introduce load owner concept Mike Leach
2021-11-24 20:00 ` [PATCH v3 2/6] coresight: configuration: Update API to permit dynamic load/unload Mike Leach
2021-11-24 20:00 ` [PATCH v3 3/6] coresight: syscfg: Update load API for config loadable modules Mike Leach
2021-11-24 20:00 ` [PATCH v3 4/6] coresight: syscfg: Example CoreSight configuration loadable module Mike Leach
2021-11-26 18:23 ` Mathieu Poirier
2021-11-29 12:24 ` Mike Leach
2021-11-29 16:44 ` Mathieu Poirier
2021-11-24 20:00 ` [PATCH v3 5/6] coresight: configfs: Allow configfs to activate configuration Mike Leach
2021-11-24 20:00 ` [PATCH v3 6/6] Documentation: coresight: Update coresight configuration docs Mike Leach
2021-11-26 18:26 ` Mathieu Poirier
2021-11-29 11:54 ` Mike Leach
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