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drm/i915: Give more details for the active-when-parking warning for the engines 

If the we think the engine is still active when we attempt to park it,
we want more details -- so dump the engine state.

References: https://bugs.freedesktop.org/show_bug.cgi?id=103479
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171027110617.31745-4-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
This commit is contained in:
Chris Wilson 2017-10-27 12:06:17 +01:00
parent 680273879d
commit 3265124a2d
1 changed files with 13 additions and 7 deletions
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20
drivers/gpu/drm/i915/intel_engine_cs.c
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@ -1613,14 +1613,20 @@ void intel_engines_park(struct drm_i915_private *i915)
struct intel_engine_cs *engine;
enum intel_engine_id id;
/*
* We are committed now to parking the engines, make sure there
* will be no more interrupts arriving later.
*/
if (!intel_engines_are_idle(dev_priv))
DRM_ERROR("Timeout waiting for engines to idle\n");
for_each_engine(engine, i915, id) {
/*
* We are committed now to parking the engines, make sure there
* will be no more interrupts arriving later and the engines
* are truly idle.
*/
if (!intel_engine_is_idle(engine)) {
struct drm_printer p = drm_debug_printer(__func__);
DRM_ERROR("%s is not idle before parking\n",
engine->name);
intel_engine_dump(engine, &p);
}
if (engine->park)
engine->park(engine);