diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-04 21:11:32 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-05 08:40:06 +0100 |
| commit | 33f53719d13a61979ca6578b280ed247eb81cdd4 (patch) | |
| tree | 59de0ce20ecedcad49ea7da97c133f93d7ec2ab5 /drivers/gpu | |
| parent | 1b36595ffb350c8bec5be8894c5a43f0581864c0 (diff) | |
drm/i915: Show waiters in i915_hangcheck_info
It is convenient to know what processes are waiting when looking at
hangcheck status in debugfs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161004201132.21801-8-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index fe2bc485565b..98f536d94797 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1353,6 +1353,9 @@ static int i915_hangcheck_info(struct seq_file *m, void *unused) seq_printf(m, "Hangcheck inactive\n"); for_each_engine_id(engine, dev_priv, id) { + struct intel_breadcrumbs *b = &engine->breadcrumbs; + struct rb_node *rb; + seq_printf(m, "%s:\n", engine->name); seq_printf(m, "\tseqno = %x [current %x, last %x]\n", engine->hangcheck.seqno, @@ -1362,6 +1365,15 @@ static int i915_hangcheck_info(struct seq_file *m, void *unused) yesno(intel_engine_has_waiter(engine)), yesno(test_bit(engine->id, &dev_priv->gpu_error.missed_irq_rings))); + spin_lock(&b->lock); + for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) { + struct intel_wait *w = container_of(rb, typeof(*w), node); + + seq_printf(m, "\t%s [%d] waiting for %x\n", + w->tsk->comm, w->tsk->pid, w->seqno); + } + spin_unlock(&b->lock); + seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n", (long long)engine->hangcheck.acthd, (long long)acthd[id]); |