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drm/asahi: g17: keep an exited owner's compute backing until another VM needs the queue #1503

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Merged
RyanTheTide merged 1 commit into from
Nov 11, 2026
Merged

drm/asahi: g17: keep an exited owner's compute backing until another VM needs the queue #1503

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6 changes: 4 additions & 2 deletions drivers/gpu/drm/asahi/g17/queue/compute.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1912,8 +1912,10 @@ impl Queue {
}
let binding = self.binding.take()?;
self.retained_owner = Some(binding.context.retain_firmware_pages());
// The backing served the exited VM only: give it back for fresh backing.
self.needs_fresh_backing = true;
// The backing stays tied to the exited VM (`pool_serves` refuses every other VM). It
// is given back only when another VM needs this queue (`require_fresh_backing` under
// QID pressure), not at every owner exit: releasing and re-arming the pool of each
// exited owner's idle queue left a later command retired without a completion stamp.
Some(binding)
}
/// An idle retained queue whose USC backing may be given back.
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