The QCOM extended CTI is a heavily parameterized version of ARM’s CSCTI.
It allows a debugger to send to trigger events to a processor or to send
a trigger event to one or more processors when a trigger event occurs on
another processor on the same SoC, or even between SoCs.
QCOM extended CTI supports up to 128 triggers. And some of the register
offsets are changed.
The commands to configure CTI triggers are the same as ARM's CTI.
Changes in v3:
1. Rename is_extended_cti() to of_is_extended_cti().
2. Add the missing 'i' when write the CTI trigger registers.
3. Convert the multi-line output in sysfs to single line.
4. Initialize offset arrays using designated initializer.
Link to V2 - https://lore.kernel.org/all/20250429071841.1158315-3-quic_jinlmao@quicinc.c…
Changes in V2:
1. Add enum for compatible items.
2. Move offset arrays to coresight-cti-core
Yingchao Deng (2):
dt-bindings: arm: Add Qualcomm extended CTI
coresight: cti: Add Qualcomm extended CTI support
.../bindings/arm/arm,coresight-cti.yaml | 4 +-
.../hwtracing/coresight/coresight-cti-core.c | 127 +++++++++++++----
.../coresight/coresight-cti-platform.c | 16 ++-
.../hwtracing/coresight/coresight-cti-sysfs.c | 128 ++++++++++++++----
drivers/hwtracing/coresight/coresight-cti.h | 75 +++++-----
5 files changed, 248 insertions(+), 102 deletions(-)
--
2.25.1
