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Message-Id: <20200820054718.20115-1-tingwei@codeaurora.org>
Date: Thu, 20 Aug 2020 13:46:54 +0800
From: Tingwei Zhang <tingwei@...eaurora.org>
To: Mathieu Poirier <mathieu.poirier@...aro.org>,
Suzuki K Poulose <suzuki.poulose@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Mike Leach <mike.leach@...aro.org>
Cc: Tingwei Zhang <tingwei@...eaurora.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Leo Yan <leo.yan@...aro.org>,
Randy Dunlap <rdunlap@...radead.org>,
Russell King <linux@...linux.org.uk>,
Kim Phillips <kim.phillips@....com>,
Mian Yousaf Kaukab <ykaukab@...e.de>, tsoni@...eaurora.org,
Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
Mao Jinlong <jinlmao@...eaurora.org>,
coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v9 00/24] coresight: allow to build coresight as modules
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 v8:
Protect etmdrvdata[] by modifying it on relevant CPU (Mathieu and Suzuki)
Grab the device before allocating memory for the node (Mathieu)
Add author of coresight core driver (Mathieu)
Change from v7:
Depends on below change for ETM hotplug (Sai)
https://lore.kernel.org/linux-arm-kernel/20200729051310.18436-1-saiprakash.ranjan@codeaurora.org/
Add mutex lock to protect etmdrvdata[] (Suzuki)
Add helper function coresight_get_ref() (Suzuki)
Reorg replicator and funnel change. Use two patches to support these
two drivers. (Suzuki)
Add fix tag to "coresight: etm: perf: Fix warning caused by etm_setup_aux
failure" (Suzuki)
Update author of "coresight: cti: Fix bug clearing sysfs links on callback"
Change from v6:
Correct module description for CATU (Mike)
Check ect_ret equals 0 and set ect_enabled flag (Mike)
Add Tested-by and Reviewed-by from Mike
Change from v5:
Add below CTI clean up change from Mike into series
-https://lists.linaro.org/pipermail/coresight/2020-July/004349.html
Increase module reference count when enabling CTI device (Mike)
Change from v4:
Fix error handling in coresight_grab_devicei() (Greg)
Add coresight: cti: Fix remove sysfs link error from Mike
-https://lists.linaro.org/pipermail/coresight/2020-July/004275.html
Move cti_remove_conn_xrefs() into cti_remove() (Mike)
Align patch subject to coresight: <component>: <description> (Mike)
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 (8):
coresight: use IS_ENABLED for CONFIGs that may be modules
coresight: etm3x: allow etm3x to be built as a module
coresight: etm4x: allow etm4x to be built as a module
coresight: etb: allow etb to be built as a module
coresight: tpiu: allow tpiu to be built as a module
coresight: tmc: allow tmc to be built as a module
coresight: allow funnel driver to be built as module
coresight: allow replicator driver to be built as module
Mian Yousaf Kaukab (2):
coresight: export global symbols
coresight: tmc-etr: add function to register catu ops
Mike Leach (2):
coresight: cti: Fix remove sysfs link error
coresight: cti: Fix bug clearing sysfs links on callback
Tingwei Zhang (12):
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()
coresight: stm: allow to build coresight-stm as a module
coresight: etm: perf: Fix warning caused by etm_setup_aux failure
coresight: cti: add function to register cti associate ops
coresight: cti: don't disable ect device if it's not enabled
coresight: cti: increase reference count when enabling cti
coresight: cti: allow cti to be built as a module
coresight: catu: 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} | 154 +++++++++++++++---
.../hwtracing/coresight/coresight-cpu-debug.c | 2 +
.../{coresight-cti.c => coresight-cti-core.c} | 63 ++++++-
drivers/hwtracing/coresight/coresight-etb10.c | 28 +++-
.../hwtracing/coresight/coresight-etm-perf.c | 13 +-
.../hwtracing/coresight/coresight-etm-perf.h | 5 +-
...resight-etm3x.c => coresight-etm3x-core.c} | 28 +++-
...resight-etm4x.c => coresight-etm4x-core.c} | 84 +++++++---
.../hwtracing/coresight/coresight-funnel.c | 64 +++++++-
.../hwtracing/coresight/coresight-platform.c | 1 +
drivers/hwtracing/coresight/coresight-priv.h | 24 ++-
.../coresight/coresight-replicator.c | 65 +++++++-
drivers/hwtracing/coresight/coresight-stm.c | 20 ++-
drivers/hwtracing/coresight/coresight-sysfs.c | 2 +
.../{coresight-tmc.c => coresight-tmc-core.c} | 25 ++-
.../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 | 20 ++-
include/linux/coresight.h | 3 +-
24 files changed, 634 insertions(+), 108 deletions(-)
rename drivers/hwtracing/coresight/{coresight.c => coresight-core.c} (92%)
rename drivers/hwtracing/coresight/{coresight-cti.c => coresight-cti-core.c} (94%)
rename drivers/hwtracing/coresight/{coresight-etm3x.c => coresight-etm3x-core.c} (97%)
rename drivers/hwtracing/coresight/{coresight-etm4x.c => coresight-etm4x-core.c} (96%)
rename drivers/hwtracing/coresight/{coresight-tmc.c => coresight-tmc-core.c} (95%)
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