Paulo Zanoni <przanoni@xxxxxxxxx> writes: > From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> > > We have this POSTING_READ inside ironlake_irq_handler. I suppose we > also want it on IVB because we want to stop the IRQ handler as soon as > possible at this point. > > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_irq.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c > index 7bc36ae..bdaab93 100644 > --- a/drivers/gpu/drm/i915/i915_irq.c > +++ b/drivers/gpu/drm/i915/i915_irq.c > @@ -1310,6 +1310,7 @@ static irqreturn_t ivybridge_irq_handler(int irq, void *arg) > /* disable master interrupt before clearing iir */ > de_ier = I915_READ(DEIER); > I915_WRITE(DEIER, de_ier & ~DE_MASTER_IRQ_CONTROL); > + POSTING_READ(DEIER); > > /* Disable south interrupts. We'll only write to SDEIIR once, so further > * interrupts will will be stored on its back queue, and then we'll be > -- > 1.8.1.2 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
