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To properly support soft light restore between batches being arbitrated at the CFEG, PIPE_CONTROL instructions have a new bit in the first DW, QUEUE_DRAIN_MODE. When set, this indicates to the CFEG that it should only drain the current queue. Additionally we no longer want to set the CS_STALL bit for these multi queue queues as this causes the entire pipeline to stall waiting for completion of the prior batch, preventing this soft light restore from occurring between queues in a queue group. v4: Assert !multi_queue where applicable (Matt Roper) Bspec: 56551 Signed-off-by: Stuart Summers <stuart.summers@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patch.msgid.link/20251211010249.1647839-29-niranjana.vishwanathapura@intel.com