• Robin Murphy's avatar
    perf/smmuv3: Add DT support · 55b65938
    Robin Murphy authored
    Add support for probing PMCGs from DT, which in itself is trivially
    simple. Since DT-based systems with SMMUv3 are most likely to be using
    Arm Ltd. implementations at the moment, a further treat is that DT lets
    us unambiguously detect those such that we can retroactively make them
    a standardised IIDR value to present as a userspace identifier.
    Signed-off-by: Robin Murphy's avatarRobin Murphy <robin.murphy@arm.com>