coresight-tpdm: Add nodes for timestamp request

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Add nodes to configure the timestamp request based on input
pattern match. Each TPDM that support DSB subunit has maximum of
n(n<7) TPR registers to configure value for timestamp request
based on input pattern match. Eight 32 bit registers providing
DSB interface timestamp request  pattern match comparison. And
each TPDM that support DSB subunit has maximum of m(m<7) TPMR
registers to configure pattern mask for timestamp request. Eight
32 bit registers providing DSB interface timestamp request
pattern match mask generation. Add nodes to enable/disable
pattern timestamp and set pattern timestamp type.

Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1695882586-10306-12-git-send-email-quic_taozha@quicinc.com

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Tao Zhang 2023-09-28 14:29:44 +08:00 • committed by Suzuki K Poulose

parent a8138a9445

commit 4c983382a2

3 changed files with 211 additions and 8 deletions

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40

Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm

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155

drivers/hwtracing/coresight/coresight-tpdm.c

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24

drivers/hwtracing/coresight/coresight-tpdm.h

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