coresight-tpdm: Add MCMB dataset support

Browse source

MCMB (Multi-lane CMB) is a special form of CMB dataset type. MCMB
subunit TPDM has the same number and usage of registers as CMB
subunit TPDM. MCMB subunit can be enabled for data collection by
writing 1 to the first bit of CMB_CR register. The difference is
that MCMB subunit TPDM needs to select the lane and enable it in
using it.

Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20250226064008.2531037-2-quic_jinlmao@quicinc.com

...

This commit is contained in:

Mao Jinlong 2025-02-25 22:40:06 -08:00 • committed by Suzuki K Poulose

parent 4ff6039ffb

commit ee39dbe939

3 changed files with 54 additions and 20 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

7

drivers/hwtracing/coresight/coresight-tpda.c

View file

40

drivers/hwtracing/coresight/coresight-tpdm.c

View file

27

drivers/hwtracing/coresight/coresight-tpdm.h

View file