937d3f58ca
When the CPU enters a low power mode, the TRFCR_EL1 contents could be reset. Thus we need to save/restore the TRFCR_EL1 along with the ETM4x registers to allow the tracing. The TRFCR related helpers are in a new header file, as we need to use them for TRBE in the later patches. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Leo Yan <leo.yan@linaro.org> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20210914102641.1852544-2-suzuki.poulose@arm.com [Fixed cosmetic details] Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> |
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