Greg,

Please find the changes for coresight and hwtracing subsystem, targeting v6.5. Please note that, I have pulled James' devm_krealloc_array() patch -

( commit d388f06aced3 "devres: Provide krealloc_array" )

- into the coresight tree from your driver-core-next, for CTI module refcount fixes depend on it.

Please let me know if this looks alright and kindly pull if it is fine.

Kind regards Suzuki

The following changes since commit 7877cb91f1081754a1487c144d85dc0d2e2e7fc4:

Linux 6.4-rc4 (2023-05-28 07:49:00 -0400)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git tags/coresight-next-v6.5

for you to fetch changes up to 6c50384ef8b94a527445e3694ae6549e1f15d859:

hwtracing: hisi_ptt: Fix potential sleep in atomic context (2023-06-21 11:52:39 +0100)

---------------------------------------------------------------- coresight: Updates for v6.5

CoreSight and hwtracing subsystem updates for v6.5 includes:

- Fixes to the CTI module reference leaks. This involves, redesign of how the helper devices are tracked and CTI devices have been converted to helper devices. - Fix removal of the trctraceidr file from sysfs for ETMs. - Match all ETMv4 instances based on the ETMv4 architected registers and the CoreSight Component ID (CID), than having to add individual PIDs for CPUs. - Add support for Dummy CoreSight source and sink drivers. - Add James Clark as Reviewer for the CoreSight kernel drivers - Fixes to HiSilicon PCIe Tune and Trace Device driver

Signed-off-by: Suzuki K Poulose suzuki.poulose@arm.com

---------------------------------------------------------------- Hao Zhang (3): Coresight: Add coresight dummy driver dt-bindings: arm: Add support for Coresight dummy trace Documentation: trace: Add documentation for Coresight Dummy Trace

James Clark (14): devres: Provide krealloc_array coresight: Fix loss of connection info when a module is unloaded coresight: Use enum type for cs_mode wherever possible coresight: Change name of pdata->conns coresight: Rename nr_outports to nr_outconns coresight: Rename connection members to make the direction explicit coresight: Dynamically add connections coresight: Store pointers to connections rather than an array of them coresight: Simplify connection fixup mechanism coresight: Store in-connections as well as out-connections coresight: Make refcount a property of the connection coresight: Refactor out buffer allocation function for ETR coresight: Enable and disable helper devices adjacent to the path coresight: Fix CTI module refcount leak by making it a helper device

Mike Leach (1): coresight: etm4x: Fix missing trctraceidr file in sysfs

Nathan Chancellor (1): coresight: dummy: Update type of mode parameter in dummy_{sink,source}_enable()

Suzuki K Poulose (2): coresight: etm4x: Match all ETM4 instances based on DEVARCH and DEVTYPE MAINTAINERS: coresight: Add James Clark as Reviewer

Uwe Kleine-König (1): coresight: etm4x: Make etm4_remove_dev() return void

Yicong Yang (5): hwtracing: hisi_ptt: Factor out filter allocation and release operation hwtracing: hisi_ptt: Add support for dynamically updating the filter list hwtracing: hisi_ptt: Export available filters through sysfs hwtracing: hisi_ptt: Advertise PERF_PMU_CAP_NO_EXCLUDE for PTT PMU hwtracing: hisi_ptt: Fix potential sleep in atomic context

Documentation/ABI/testing/sysfs-devices-hisi_ptt | 52 ++ .../bindings/arm/arm,coresight-dummy-sink.yaml | 73 +++ .../bindings/arm/arm,coresight-dummy-source.yaml | 71 +++ Documentation/driver-api/driver-model/devres.rst | 1 + Documentation/trace/coresight/coresight-dummy.rst | 32 ++ Documentation/trace/hisi-ptt.rst | 12 +- MAINTAINERS | 1 + drivers/hwtracing/coresight/Kconfig | 11 + drivers/hwtracing/coresight/Makefile | 1 + drivers/hwtracing/coresight/coresight-catu.c | 21 +- drivers/hwtracing/coresight/coresight-core.c | 623 +++++++++++---------- drivers/hwtracing/coresight/coresight-cti-core.c | 52 +- drivers/hwtracing/coresight/coresight-cti-sysfs.c | 4 +- drivers/hwtracing/coresight/coresight-cti.h | 4 +- drivers/hwtracing/coresight/coresight-dummy.c | 163 ++++++ drivers/hwtracing/coresight/coresight-etb10.c | 13 +- drivers/hwtracing/coresight/coresight-etm-perf.c | 4 +- drivers/hwtracing/coresight/coresight-etm3x-core.c | 6 +- drivers/hwtracing/coresight/coresight-etm4x-core.c | 20 +- .../hwtracing/coresight/coresight-etm4x-sysfs.c | 27 +- drivers/hwtracing/coresight/coresight-funnel.c | 26 +- drivers/hwtracing/coresight/coresight-platform.c | 269 ++++----- drivers/hwtracing/coresight/coresight-priv.h | 36 +- drivers/hwtracing/coresight/coresight-replicator.c | 23 +- drivers/hwtracing/coresight/coresight-stm.c | 6 +- drivers/hwtracing/coresight/coresight-sysfs.c | 17 +- drivers/hwtracing/coresight/coresight-tmc-etf.c | 26 +- drivers/hwtracing/coresight/coresight-tmc-etr.c | 110 ++-- drivers/hwtracing/coresight/coresight-tmc.h | 2 + drivers/hwtracing/coresight/coresight-tpda.c | 23 +- drivers/hwtracing/coresight/coresight-tpdm.c | 4 +- drivers/hwtracing/coresight/coresight-tpiu.c | 7 +- drivers/hwtracing/coresight/coresight-trbe.c | 3 +- drivers/hwtracing/coresight/ultrasoc-smb.c | 11 +- drivers/hwtracing/coresight/ultrasoc-smb.h | 2 +- drivers/hwtracing/ptt/hisi_ptt.c | 454 +++++++++++++-- drivers/hwtracing/ptt/hisi_ptt.h | 56 ++ include/linux/coresight.h | 127 +++-- include/linux/device.h | 11 + 39 files changed, 1662 insertions(+), 742 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml create mode 100644 Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml create mode 100644 Documentation/trace/coresight/coresight-dummy.rst create mode 100644 drivers/hwtracing/coresight/coresight-dummy.c