Hi Greg
Please find the updates for CoreSight self hosted tracing subsystem targeting Linux v7.2
Kindly pull,
Suzuki
---
The following changes since commit 7fd2df204f342fc17d1a0bfcd474b24232fb0f32:
Linux 7.1-rc2 (2026-05-03 14:21:25 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git tags/coresight-next-v7.2
for you to fetch changes up to 98495b5a4d77dd22e106f462b76e1093a55b29a7:
coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer() (2026-06-04 09:56:13 +0100)
---------------------------------------------------------------- coresight: Self-hosted tracing updates for Linux v7.2
Updates for the CoreSight self hosted tracing subsystem includes: - Better power management for components based on the CPU PM, including support for components on the trace path for CPUs. Add support for save/restore for TRBE - Miscellaneous fixes to the drivers * Fix overflow when the buffer size is > 2GB for tmc-etr * Ultrasoc SMB Perf buffer OOB access
Signed-off-by: Suzuki K Poulose suzuki.poulose@arm.com
---------------------------------------------------------------- James Clark (1): coresight: ete: Always save state on power down
Jie Gan (3): coresight: fix missing error code when trace ID is invalid coresight: Fix source not disabled on idr_alloc_u32 failure coresight: platform: defer connection counter increment until alloc succeeds
Junrui Luo (1): coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer()
Leo Yan (28): coresight: tmc: Fix overflow when calculating is bigger than 2GiB coresight: etm4x: Correct TRCVMIDCCTLR1 save and restore coresight: Handle helper enable failure properly coresight: Extract device init into coresight_init_device() coresight: Populate CPU ID into coresight_device coresight: Remove .cpu_id() callback from source ops coresight: Take hotplug lock in enable_source_store() for Sysfs mode coresight: perf: Retrieve path and source from event data coresight: Take a reference on csdev coresight: Move per-CPU source pointer to core layer coresight: Take per-CPU source reference during AUX setup coresight: Register CPU PM notifier in core layer coresight: etm4x: Hook CPU PM callbacks coresight: etm4x: Remove redundant checks in PM save and restore coresight: syscfg: Use IRQ-safe spinlock to protect active variables coresight: Disable source helpers in coresight_disable_path() coresight: Control path with range coresight: Use helpers to fetch first and last nodes coresight: Introduce coresight_enable_source() helper coresight: Save active path for system tracers coresight: etm4x: Set active path on target CPU coresight: etm3x: Set active path on target CPU coresight: sysfs: Use source's path pointer for path control coresight: Control path during CPU idle coresight: Add PM callbacks for sink device coresight: sysfs: Increment refcount only for software source coresight: Move CPU hotplug callbacks to core layer coresight: sysfs: Validate CPU online status for per-CPU sources
Runyu Xiao (1): coresight: etb10: restore atomic_t for shared reading state
Yabin Cui (1): coresight: trbe: Save and restore state across CPU low power state
Yingchao Deng (1): coresight: cti: Fix DT filter signals silently ignored
drivers/hwtracing/coresight/coresight-catu.c | 2 +- drivers/hwtracing/coresight/coresight-core.c | 574 ++++++++++++++++++--- drivers/hwtracing/coresight/coresight-cti-core.c | 9 +- .../hwtracing/coresight/coresight-cti-platform.c | 1 + drivers/hwtracing/coresight/coresight-etb10.c | 6 +- drivers/hwtracing/coresight/coresight-etm-perf.c | 289 ++++++----- drivers/hwtracing/coresight/coresight-etm3x-core.c | 73 +-- drivers/hwtracing/coresight/coresight-etm4x-core.c | 216 +++----- drivers/hwtracing/coresight/coresight-platform.c | 12 +- drivers/hwtracing/coresight/coresight-priv.h | 8 +- drivers/hwtracing/coresight/coresight-syscfg.c | 38 +- drivers/hwtracing/coresight/coresight-syscfg.h | 2 + drivers/hwtracing/coresight/coresight-sysfs.c | 135 ++--- drivers/hwtracing/coresight/coresight-tmc-etr.c | 4 +- drivers/hwtracing/coresight/coresight-trbe.c | 61 ++- drivers/hwtracing/coresight/ultrasoc-smb.c | 1 + include/linux/coresight.h | 27 +- include/linux/cpuhotplug.h | 2 +- 18 files changed, 939 insertions(+), 521 deletions(-)