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Whitelist or de-whitelist OA registers for all hwe's on the gt on which the OA stream is opened. This simplifies the case where an oa unit has 0 attached hwe's (but which monitors OA events on the associated GT). Fixes:828a8eaf37("drm/xe/oa: Add MMIO trigger support") Cc: stable@vger.kernel.org # v6.12+ Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Link: https://patch.msgid.link/20260615224227.34880-8-ashutosh.dixit@intel.com (cherry picked from commit6f73bf8fff) Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>