Re: [PATCH 6/6] drm/i915/gt: Cancel a hung context if already closed

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On 19/03/2020 09:19, Chris Wilson wrote:
Use the restored ability to check if a context is closed to decide
whether or not to immediately ban the context from further execution
after a hang.

Fixes: be90e344836a ("drm/i915/gt: Cancel banned contexts after GT reset")
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
  drivers/gpu/drm/i915/gt/intel_reset.c | 5 +++++
  1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index 9a15bdf31c7f..003f26b42998 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -88,6 +88,11 @@ static bool mark_guilty(struct i915_request *rq)
  	bool banned;
  	int i;
+ if (intel_context_is_closed(rq->context)) {
+		intel_context_set_banned(rq->context);
+		return true;
+	}
+
  	rcu_read_lock();
  	ctx = rcu_dereference(rq->context->gem_context);
  	if (ctx && !kref_get_unless_zero(&ctx->ref))


Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

Regards,

Tvrtko
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