On Fri, Jan 23, 2015 at 03:19:16PM +0200, Ville Syrjälä wrote:
> On Fri, Jan 23, 2015 at 02:44:08PM +0200, Mika Kuoppala wrote:
> > From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> >
> > For example,
> >
> > /sys/kernel/debug/dri/0/i915_hangcheck_info:
> >
> > Hangcheck active, fires in 15887800ms
> > render ring:
> > seqno = -4059 [current -583]
> > action = 2
> > score = 0
> > ACTHD = 1ee8 [current 21f980]
> > max ACTHD = 0
> >
> > v2: Include expiration ETA. Can anyone spot a problem?
> > v3: Convert for workqueued hangcheck (Mika)
> >
> > Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he@xxxxxxxxx) (v2)
> > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> (v2)
> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> (v2)
> > Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
> > ---
> > drivers/gpu/drm/i915/i915_debugfs.c | 36 ++++++++++++++++++++++++++++++++++++
> > 1 file changed, 36 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> > index 2ad4c48..1502c96 100644
> > --- a/drivers/gpu/drm/i915/i915_debugfs.c
> > +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> > @@ -1219,6 +1219,41 @@ out:
> > return ret;
> > }
> >
> > +static int i915_hangcheck_info(struct seq_file *m, void *unused)
> > +{
> > + struct drm_info_node *node = m->private;
> > + struct drm_i915_private *dev_priv = to_i915(node->minor->dev);
> > + struct intel_engine_cs *ring;
> > + int i;
> > +
> > + if (!i915.enable_hangcheck) {
> > + seq_printf(m, "Hangcheck disabled\n");
> > + return 0;
> > + }
> > +
> > + if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work)) {
> > + seq_printf(m, "Hangcheck active, fires in %dms\n",
> > + jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires -
> > + jiffies));
> > + } else
> > + seq_printf(m, "Hangcheck inactive\n");
> > +
> > + for_each_ring(ring, dev_priv, i) {
> > + seq_printf(m, "%s:\n", ring->name);
> > + seq_printf(m, "\tseqno = %d [current %d]\n",
>
> %u ?
%x. Then it will be more consistent with how we print it else. (No one
has ever accused me of being consistent!)
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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