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drm/i915: Show all active engines on hangcheck

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This turns out to be quite useful if one happens to be debugging
semaphore deadlocks.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190121222117.23305-4-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-01-21 22:20:46 +00:00
parent 0e21834e18
commit 25f9cebd7a
1 changed files with 11 additions and 4 deletions
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15
drivers/gpu/drm/i915/intel_hangcheck.c
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@ -195,10 +195,6 @@ static void hangcheck_accumulate_sample(struct intel_engine_cs *engine,
break;
case ENGINE_DEAD:
if (GEM_SHOW_DEBUG()) {
struct drm_printer p = drm_debug_printer("hangcheck");
intel_engine_dump(engine, &p, "%s\n", engine->name);
}
break;
default:
@ -285,6 +281,17 @@ static void i915_hangcheck_elapsed(struct work_struct *work)
wedged |= intel_engine_flag(engine);
}
if (GEM_SHOW_DEBUG() && (hung | stuck)) {
struct drm_printer p = drm_debug_printer("hangcheck");
for_each_engine(engine, dev_priv, id) {
if (intel_engine_is_idle(engine))
continue;
intel_engine_dump(engine, &p, "%s\n", engine->name);
}
}
if (wedged) {
dev_err(dev_priv->drm.dev,
"GPU recovery timed out,"