[PATCH v4 00/20] coresight: allow to build coresight as modules

Tingwei Zhang tingweiz at codeaurora.org
Thu Jul 23 20:37:55 EDT 2020


 Thu, Jul 23, 2020 at 07:03:10PM +0800, Mike Leach wrote:
> Hi Tingwei,
> 
> Minor Nit: can we get some consistency with the patch naming.
> coresight: <component>: <description>
> e.g. coresight: cti: allow build as module
> where specific components are used. This makes identifying patches for
> specific components a lot easier.
Thanks for the advice.  I'll rename them in next revision.
> 
> Also it would be good to add my patch [1] to this series as requested
> by Mathieu - it will ensure that the patch set works as a complete
> set.

My fault.  I thought he was talking about the change you shared which
depends on my change. I'll add your patch in next revision.

> 
> Thanks and Regards
> 
> Mike
> 
> [1] https://lists.linaro.org/pipermail/coresight/2020-July/004275.html
> 
> On Thu, 23 Jul 2020 at 05:28, Tingwei Zhang <tingwei at codeaurora.org>
> wrote:
> >
> > Allow to build coresight as modules. This gives developers the
> feasibility to
> > test their code without reboot.
> >
> > This series is based on below two series.
> >
> >  - "coresight: allow to build components as modules"
> >    https://lkml.org/lkml/2018/6/5/989
> >  - "coresight: make drivers modular"
> >    https://lkml.org/lkml/2020/1/17/468
> >
> > Change from v3:
> > Rebase to coresight-next (Mike and Mathieu)
> > Reorder try_get_module() (Suzuki)
> > Clean up etmdrvdata[] in device remote path (Mike)
> > Move cti_remove_conn_xrefs to cti_remove (Mike)
> >
> > Change from v2:
> > Rebase to 5.8-rc5. Export coresight_add_sysfs_link and
> > coresight_remove_sysfs_link
> > Fix one cut and paste error on MODULE_DESCRIPTION of CTI
> >
> > Change from v1:
> > Use try_module_get() to avoid module to be unloaded when device is used
> > in active trace session. (Mathieu P)
> >
> > Change from above two series.
> > This series adds the support to dynamically remove module when the
> device in
> > that module is enabled and used by some trace path. It disables all
> trace
> > paths with that device and release the trace path.
> >
> > Kim Phillips (7):
> >   coresight: use IS_ENABLED for CONFIGs that may be modules
> >   coresight: allow etm3x to be built as a module
> >   coresight: allow etm4x to be built as a module
> >   coresight: allow etb to be built as a module
> >   coresight: allow tpiu to be built as a module
> >   coresight: allow tmc to be built as a module
> >   coresight: allow funnel and replicator drivers to be built as modules
> >
> > Mian Yousaf Kaukab (4):
> >   coresight: export global symbols
> >   coresight: remove multiple init calls from funnel driver
> >   coresight: remove multiple init calls from replicator driver
> >   coresight: tmc-etr: add function to register catu ops
> >
> > Tingwei Zhang (9):
> >   coresight: cpu_debug: add module name in Kconfig
> >   coresight: cpu_debug: define MODULE_DEVICE_TABLE
> >   coresight: add coresight prefix to barrier_pkt
> >   coresight: add try_get_module() in coresight_grab_device()
> >   allow to build coresight-stm as a module, for ease of development.
> >   coresight: cti: add function to register cti associate ops
> >   coresight: allow cti to be built as a module
> >   coresight: allow catu drivers to be built as modules
> >   coresight: allow the coresight core driver to be built as a module
> >
> >  drivers/hwtracing/coresight/Kconfig           |  54 ++++++++--
> >  drivers/hwtracing/coresight/Makefile          |  22 ++--
> >  drivers/hwtracing/coresight/coresight-catu.c  |  37 ++++++-
> >  drivers/hwtracing/coresight/coresight-catu.h  |   2 -
> >  .../{coresight.c => coresight-core.c}         | 102 ++++++++++++++----
> >  .../hwtracing/coresight/coresight-cpu-debug.c |   2 +
> >  .../{coresight-cti.c => coresight-cti-core.c} |  51 ++++++++-
> >  drivers/hwtracing/coresight/coresight-etb10.c |  22 +++-
> >  .../hwtracing/coresight/coresight-etm-perf.c  |   9 +-
> >  .../hwtracing/coresight/coresight-etm-perf.h  |   5 +-
> >  ...resight-etm3x.c => coresight-etm3x-core.c} |  27 ++++-
> >  ...resight-etm4x.c => coresight-etm4x-core.c} |  26 ++++-
> >  .../hwtracing/coresight/coresight-funnel.c    |  62 ++++++++++-
> >  .../hwtracing/coresight/coresight-platform.c  |   1 +
> >  drivers/hwtracing/coresight/coresight-priv.h  |  24 ++---
> >  .../coresight/coresight-replicator.c          |  63 ++++++++++-
> >  drivers/hwtracing/coresight/coresight-stm.c   |  20 +++-
> >  drivers/hwtracing/coresight/coresight-sysfs.c |   2 +
> >  .../{coresight-tmc.c => coresight-tmc-core.c} |  19 +++-
> >  .../hwtracing/coresight/coresight-tmc-etf.c   |   2 +-
> >  .../hwtracing/coresight/coresight-tmc-etr.c   |  21 +++-
> >  drivers/hwtracing/coresight/coresight-tmc.h   |   3 +
> >  drivers/hwtracing/coresight/coresight-tpiu.c  |  19 +++-
> >  include/linux/coresight.h                     |   2 +-
> >  24 files changed, 520 insertions(+), 77 deletions(-)
> >  rename drivers/hwtracing/coresight/{coresight.c => coresight-core.c}
> (95%)
> >  rename drivers/hwtracing/coresight/{coresight-cti.c =>
> coresight-cti-core.c} (96%)
> >  rename drivers/hwtracing/coresight/{coresight-etm3x.c =>
> coresight-etm3x-core.c} (97%)
> >  rename drivers/hwtracing/coresight/{coresight-etm4x.c =>
> coresight-etm4x-core.c} (98%)
> >  rename drivers/hwtracing/coresight/{coresight-tmc.c =>
> coresight-tmc-core.c} (96%)
> >
> > --
> > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
> Forum,
> > a Linux Foundation Collaborative Project
> >
> > _______________________________________________
> > CoreSight mailing list
> > CoreSight at lists.linaro.org
> > https://lists.linaro.org/mailman/listinfo/coresight
> 
> 
> 
> -- 
> Mike Leach
> Principal Engineer, ARM Ltd.
> Manchester Design Centre. UK
> 
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