Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> writes: > On kbl evidence indicates that even if the hardware happily > tells us to proceed with reset, it really isn't ready. > Resetting a freely running batchbuffer after we have ack for readiness, > still can cause a system hang. > > We also have similar experiences on older gens. So now > attempt to stop engines before proceeding for reset, on all > gens where we have a gpu reset. This has shown to improve reset > reliability and reduce the risk of losing the machine. > > v2: Add fixme for wa (Joonas) > > Testcase: igt/prime_busy/hang-* # kbl > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx> > Acked-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Acked-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> Pushed, thanks for acks. -Mika _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
