[Intel-gfx] [RFC] drm/i915/hangcheck: Look at instdone for all engines

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

It seems intel_engine_get_instdone is able to get instdone for all engines
but intel_hangcheck.c/subunits_stuck decides to ignore it for non render.

We can just drop the check in subunits_stuck since the checks on
unavailable fields will always return stuck, which when bitwise and with
the potential unstuck instdone is harmless.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
---
Would actually using the available data improve hang detection?
---
 drivers/gpu/drm/i915/gt/intel_hangcheck.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_hangcheck.c b/drivers/gpu/drm/i915/gt/intel_hangcheck.c
index 174bb0a60309..70f0960200ed 100644
--- a/drivers/gpu/drm/i915/gt/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/intel_hangcheck.c
@@ -57,9 +57,6 @@ static bool subunits_stuck(struct intel_engine_cs *engine)
 	int slice;
 	int subslice;
 
-	if (engine->id != RCS0)
-		return true;
-
 	intel_engine_get_instdone(engine, &instdone);
 
 	/* There might be unstable subunit states even when
-- 
2.20.1