Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes: > On Fri, Oct 30, 2015 at 05:18:18PM +0200, Mika Kuoppala wrote: >> Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes: >> >> > On Fri, Oct 30, 2015 at 04:43:49PM +0200, Mika Kuoppala wrote: >> >> Gen9 has had demonstrated cases where forcing a not ready gpu >> >> into reset has caused system hang [1]. >> >> >> >> Gen8 has never to this date demonstrated such behaviour. >> >> >> >> In our CI tests bsw sometimes ends up in a state where it claims it >> >> is not ready for reset, based on reset request, after gpu hang. >> >> >> >> Allow gen8 to reset even after claims of nonreadiness in order >> >> to keep the gpu accessible. Enhance logging so that it will be >> >> clear what conditions led to decision of proceeding or bailing out, >> >> so that we will spot if this way of forcing our will against gpu turns >> >> out to be foolhardy. >> >> >> >> References [1]: https://bugs.freedesktop.org/show_bug.cgi?id=89959 >> >> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> >> >> Cc: Tomi Sarvela <tomix.p.sarvela@xxxxxxxxx> >> >> Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx> >> >> --- >> >> drivers/gpu/drm/i915/intel_uncore.c | 9 ++++++++- >> >> 1 file changed, 8 insertions(+), 1 deletion(-) >> >> >> >> diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c >> >> index f0f97b2..47c17f2 100644 >> >> --- a/drivers/gpu/drm/i915/intel_uncore.c >> >> +++ b/drivers/gpu/drm/i915/intel_uncore.c >> >> @@ -1504,7 +1504,14 @@ not_ready: >> >> I915_WRITE(RING_RESET_CTL(engine->mmio_base), >> >> _MASKED_BIT_DISABLE(RESET_CTL_REQUEST_RESET)); >> >> >> >> - return -EIO; >> > >> > Where's the reference for where we hit this EIO on gen8? >> > >> >> Internal CI logs, relevant part cutpasted below. If you want >> full log holler me in irc. > > So you are saying that's there no bugzilla for this... :-p Bugzilla fairy might surprise us after a good weekend rest. -Mika > -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
