It seems that hardware that is broken enough to emit a hotplug IRQ even though the pin is surposedly disable, will do so indefinitely.
References: https://bugzilla.redhat.com/show_bug.cgi?id=1051170 Link: https://bugzilla.redhat.com/show_bug.cgi?id=1051369 Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> --- drivers/gpu/drm/i915/i915_irq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index ec67bb8aff0a..3be8bcd4d797 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1247,9 +1247,9 @@ static inline void intel_hpd_irq_handler(struct drm_device *dev, spin_lock(&dev_priv->irq_lock); for (i = 1; i < HPD_NUM_PINS; i++) { - WARN(((hpd[i] & hotplug_trigger) && - dev_priv->hpd_stats[i].hpd_mark != HPD_ENABLED), - "Received HPD interrupt although disabled\n"); + WARN_ONCE(hpd[i] & hotplug_trigger && + dev_priv->hpd_stats[i].hpd_mark != HPD_ENABLED, + "Received HPD interrupt although disabled\n"); if (!(hpd[i] & hotplug_trigger) || dev_priv->hpd_stats[i].hpd_mark != HPD_ENABLED) -- 1.8.5.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
