Re: [PATCH v3 0/8] Add support to configure TPDM CMB subunit

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On 21/11/2023 02:24, Tao Zhang wrote:
Introduction of TPDM CMB(Continuous Multi Bit) subunit
CMB subunit is responsible for creating a dataset element, and is also
optionally responsible for packing it to fit multiple elements on a
single ATB transfer if possible in the configuration. The TPDM Core
Datapath requests timestamps be stored by the TPDA and then delivering
ATB sized data (depending on ATB width and element size, this could
be smaller or larger than a dataset element) to the ATB Mast FSM.
The CMB makes trace elements in two modes. In �continuous� mode, every
valid data cycle creates an element. In �trace on change� mode, when
valid data changes on the bus, a trace element is created. In
continuous mode, all cycles where this condition is true create trace
elements. In trace on change mode, a data element is only when the
previously sampled input is different from the current sampled input.

The CMB subunit must be configured prior to enablement. This series
adds support for TPDM to configure the configure CMB subunit.



Please base your next version on for-next/queue branch on the
coresight repository.

Suzuki




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