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    Subject[PATCH v2 0/2] interconnect: Add path tagging support
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    SoCs that have multiple coexisting CPUs and DSPs, may have shared
    interconnect buses between them. In such cases, each CPU/DSP may have
    different bandwidth needs, depending on whether it is active or sleeping.
    This means that we have to keep different bandwidth configurations for
    the CPU (active/sleep). In such systems, usually there is a way to
    communicate and synchronize this information with some firmware or pass
    it to another processor responsible for monitoring and switching the
    interconnect configurations based on the state of each CPU/DSP.

    The above problem can be solved by introducing the path tagging concept,
    that allows consumers to optionally attach a tag to each path they use.
    This tag is used to differentiate between the aggregated bandwidth values
    for each state. The tag is generic and how it's handled is up to the
    platform specific interconnect provider drivers.

    v2:
    - Store tag with the request. (Evan)
    - Reorganize the code to save bandwidth values into buckets and use the
    tag as a bitfield. (Evan)
    - Clear the aggregated values after icc_set().

    v1: https://lore.kernel.org/lkml/20190208172152.1807-1-georgi.djakov@linaro.org/


    David Dai (1):
    interconnect: qcom: Add tagging and wake/sleep support for sdm845

    Georgi Djakov (1):
    interconnect: Add support for path tags

    drivers/interconnect/core.c | 24 ++++-
    drivers/interconnect/qcom/sdm845.c | 131 +++++++++++++++++++-------
    include/linux/interconnect-provider.h | 4 +-
    include/linux/interconnect.h | 5 +
    4 files changed, 129 insertions(+), 35 deletions(-)

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