774daad3c0
Now that there is a way of enabling branch broadcast via perf, mention the possible use cases and known limitations. Signed-off-by: James Clark <james.clark@arm.com> Reviewed-by: Mike Leach<mike.leach@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20220511144601.2257870-5-james.clark@arm.com