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OA reports on XeHP have their timestamp shifted to the left by 1. To get that back in the same time domain as the REG_READ you need to shift it back to the right and you're loosing the top bit. v2: use ull for 64bit constant (Ian) Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16144>