• Michele Di Giorgio's avatar
    thermal: trace: migrating thermal traces to use TRACE_DEFINE_ENUM() macros · d0b45880
    Michele Di Giorgio authored
    Userspace tools are not aware of how to convert the enums provided by
    the tracepoints to their corresponding strings.
    Adding TRACE_DEFINE_ENUM() macros allows to make the enums available
    to userspace to let the tools know what those enum values represent.
    In particular, for thermal zone trip types what we obtained before was
    something like:
    kworker/1:1-460   [001]   320.372732: thermal_zone_trip:    thermal_zone=soc
    				id=0 trip=1 trip_type=1
    Unfortunately, userspace tools do not know how to convert enum values to
    strings and as a consequence they can only forward the enum value to the
    output. By using TRACE_DEFINE_ENUM() macros for thermal traces we get the
    following trace line:
    kworker/1:1-460   [001]   320.372732: thermal_zone_trip:    thermal_zone=soc
    				id=0 trip=1 trip_type=PASSIVE
    Userspace tools are now able to better understand the meaning of the trip_type
    and provide the user with more readable information.
    CC: Steven Rostedt <rostedt@goodmis.org>
    CC: Eduardo Valentin <edubezval@gmail.com>
    Signed-off-by: default avatarMichele Di Giorgio <michele.digiorgio@arm.com>
    Acked-by: default avatarSteven Rostedt <rostedt@goodmis.org>
    Acked-by: default avatarJavi Merino <javi.merino@arm.com>
    Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
thermal.h 5.32 KB