2014/1/10 Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>: > We were apparently relying on the defaults on BDW, which resulted in no > hotplug or AUX interrupts. > > References: https://bugs.freedesktop.org/show_bug.cgi?id=72834 > References: https://bugs.freedesktop.org/show_bug.cgi?id=72833 > Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_irq.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c > index 261254a..f88e265 100644 > --- a/drivers/gpu/drm/i915/i915_irq.c > +++ b/drivers/gpu/drm/i915/i915_irq.c > @@ -2763,13 +2763,15 @@ static void ibx_irq_postinstall(struct drm_device *dev) > mask = SDE_GMBUS | SDE_AUX_MASK | SDE_TRANSB_FIFO_UNDER | > SDE_TRANSA_FIFO_UNDER | SDE_POISON; > } else { > - mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT | SDE_ERROR_CPT; > + mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT | SDE_ERROR_CPT | > + SDE_HOTPLUG_MASK_CPT; > > I915_WRITE(SERR_INT, I915_READ(SERR_INT)); > } > > I915_WRITE(SDEIIR, I915_READ(SDEIIR)); > I915_WRITE(SDEIMR, ~mask); > + I915_WRITE(SDEIER, mask); ibx_irq_preinstall contains a nice comment explaining why SDEIER needs to be 0xffffffff. I think the proper solution to your bug is probably to call ibx_irq_preinstall from gen8_irq_preinstall. > } > > static void gen5_gt_irq_postinstall(struct drm_device *dev) > -- > 1.8.3.2 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Paulo Zanoni _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
