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The kernel start address is already cached in the machine struct once it is initialised, so storing it in the cs_etm struct is unnecessary. It also depends on kernel maps being available to be initialised. Therefore cs_etm__setup_queues() isn't an appropriate place to call it because it could be called before processing starts. It would be better to initialise it at the point when it is needed, then we can be sure that all the necessary maps are available. Also by calling machine__kernel_start() multiple times it can be initialised at some point, even if it failed to initialise previously due to missing maps. In a later commit cs_etm__setup_queues() will be moved which is the motivation for this change. Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Al Grant <al.grant@arm.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: coresight@lists.linaro.org Link: https://lore.kernel.org/r/20210721150202.32065-2-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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