Commits on Aug 13, 2024

1. control: Add Device::crtc_get/queue_sequence() IOCTLs and event …

   These two IOCTLs are for querying the most recent sequence number (and
   its "first pixel out" timestamp) as well as scheduling (queueing) an
   event when a future sequence number (absolute or relative) is hit,
   equally containing the "first pixel out" timestamp for that sequence.
   
   As with `wait_vblank()`, `crtc_queue_sequence()` also returns the
   absolute sequence number that the event ended up latching on.  This
   is useful when specifying a relative index as well as when the driver
   `max()`es an absolute target to the most recently triggered sequence.
   This request will still result in an event even when that sequence
   number has already been hit, but doesn't allow you to queue older
   frames.

   

   MarijnS95 committed Aug 13, 2024
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