[PATCH v3 0/5] coresight: syscfg: Extend configfs for config load

[Mathieu Poirier]

On Thu, Apr 14, 2022 at 07:44:52AM +0100, Mike Leach wrote:
> This set extends the configfs support to allow loading and unloading of
> configurations as binary files via configfs.
> 
> Additional attributes - load and unload are provided to in the
> configurations group to implement the load functionality.
> 
> Routines to generate binary configuration files are supplied in
> ./tools/coresight.
> 
> Example generator and reader applications are provided.
> 
> Tools may be cross compiled or built for use on host system.
> 
> Documentation is updated to describe feature usage.
> 
> Changes since v2:
> 1) Rebased & tested oo coresight/next - 5.18-rc2
> 2) Moved coresight config generator and reader programs from samples to
> tools/coresight. Docs updated to match. (suggested by Mathieu)
> 3) userspace builds now use userspace headers from tools/...
> 4) Other minor fixes from Mathieu's review.
> 
> Changes since v1:
> 1) Rebased to coresight/next - 5.16-rc1 with previous coresight config
> set applied.
> 2) Makefile.host fixed to default to all target.
> 
> Mike Leach (5):
>   coresight: configfs: Add in functionality for load via configfs
>   coresight: configfs: Add in binary attributes to load files
>   coresight: configfs: Modify config files to allow userspace use
>   coresight: tools: Add config file write and reader tools
>   Documentation: coresight: docs for config load via configfs

I have started reviewing this set.  Comments will be spread out over several
days.  I will advise when I am done.

Thanks,
Mathieu

> 
>  .../trace/coresight/coresight-config.rst      | 166 +++++-
>  MAINTAINERS                                   |   2 +
>  drivers/hwtracing/coresight/Makefile          |   2 +-
>  .../coresight/coresight-config-file.c         | 475 ++++++++++++++++++
>  .../coresight/coresight-config-file.h         | 126 +++++
>  .../hwtracing/coresight/coresight-config.h    |  27 +
>  .../coresight/coresight-syscfg-configfs.c     |  91 ++++
>  .../hwtracing/coresight/coresight-syscfg.c    |  37 ++
>  .../hwtracing/coresight/coresight-syscfg.h    |   2 +
>  tools/coresight/Makefile                      |  51 ++
>  tools/coresight/coresight-cfg-bufw.c          | 303 +++++++++++
>  tools/coresight/coresight-cfg-bufw.h          |  26 +
>  tools/coresight/coresight-cfg-example1.c      |  65 +++
>  tools/coresight/coresight-cfg-examples.h      |  27 +
>  tools/coresight/coresight-cfg-file-read.c     | 197 ++++++++
>  tools/coresight/coresight-cfg-filegen.c       |  58 +++
>  tools/include/uapi/coresight-config-uapi.h    |  76 +++
>  17 files changed, 1724 insertions(+), 7 deletions(-)
>  create mode 100644 drivers/hwtracing/coresight/coresight-config-file.c
>  create mode 100644 drivers/hwtracing/coresight/coresight-config-file.h
>  create mode 100644 tools/coresight/Makefile
>  create mode 100644 tools/coresight/coresight-cfg-bufw.c
>  create mode 100644 tools/coresight/coresight-cfg-bufw.h
>  create mode 100644 tools/coresight/coresight-cfg-example1.c
>  create mode 100644 tools/coresight/coresight-cfg-examples.h
>  create mode 100644 tools/coresight/coresight-cfg-file-read.c
>  create mode 100644 tools/coresight/coresight-cfg-filegen.c
>  create mode 100644 tools/include/uapi/coresight-config-uapi.h
> 
> -- 
> 2.17.1
>