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Certain TLB invalidation operations send multiple H2G messages per seqno with only the final H2G containing the valid seqno - the others carry an invalid seqno. The G2H handler drops these invalid seqno to aovid prematurely signaling a TLB invalidation fence. With TLB_INVALIDATION_SEQNO_INVALID used to indicate in progress multi-step TLB invalidations, reset tdr to ensure that timeout won't prematurely trigger when G2H actions are still ongoing. v2: Remove lock from xe_tlb_inval_reset_timeout. (Matthew B) v3: Squash with dependent patch from Matthew Brost' series. Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Link: https://patch.msgid.link/20251212213225.3564537-13-brian3.nguyen@intel.com