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The ETM registers are classified into 2 categories: trace and management. The core power domain contains most of the trace unit logic including all(except TRCOSLAR and TRCOSLSR) the trace registers. The debug power domain contains the external debugger interface including all management registers. This patch adds coresight unit specific function coresight_simple_func which can be used for ETM trace registers by providing a ETM specific read function which does smp cross call to ensure the trace core is powered up before the register is accessed. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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stm |