On 2019.07.15 09:09:27 +0100, Chris Wilson wrote: > GVT forces single port submission of individual requests. We do not > enjoy the context amalgamation that the test depends upon for setting up > the test (where port 0 has a large number of requests with a priority > change somewhere in the middle). Under single request submission of gvt > it is quite able for the preemption event to occur while another context > is active and so there be a real need to act upon that preemption. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> > Cc: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/gt/selftest_lrc.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c > index bde0164551b1..071e21c0ac15 100644 > --- a/drivers/gpu/drm/i915/gt/selftest_lrc.c > +++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c > @@ -854,6 +854,9 @@ static int live_suppress_self_preempt(void *arg) > if (USES_GUC_SUBMISSION(i915)) > return 0; /* presume black blox */ > > + if (intel_vgpu_active(i915)) > + return 0; /* GVT forces single port & request submission */ > + > mutex_lock(&i915->drm.struct_mutex); > wakeref = intel_runtime_pm_get(&i915->runtime_pm); > Acked-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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