drm/lima: handle spurious timeouts due to high irq latency

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There are several unexplained and unreproduced cases of rendering
timeouts with lima, for which one theory is high IRQ latency coming from
somewhere else in the system.
This kind of occurrence may cause applications to trigger unnecessary
resets of the GPU or even applications to hang if it hits an issue in
the recovery path.
Panfrost already does some special handling to account for such
"spurious timeouts", it makes sense to have this in lima too to reduce
the chance that it hit users.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240124025947.2110659-6-nunes.erico@gmail.com

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Erico Nunes 2024-01-24 03:59:44 +01:00 • committed by Qiang Yu

parent 27aa58ec85

commit 53cb55b202

1 changed files with 28 additions and 3 deletions

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drivers/gpu/drm/lima/lima_sched.c

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