Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> If we are waiting upon an external fence, from the pov of hangcheck the
> engine is stuck on the last submitted seqno. Currently we give a small
> increment to the hangcheck score in order to catch a stuck waiter /
> driver. Now that we both have an independent wait hangcheck and may be
> stuck waiting on an external fence, resetting the GPU has little effect
> on that external fence. As we cannot advance by resetting, skip
> incrementing the hangcheck score.
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_irq.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index b76d45d91a84..8462817a7dae 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -3099,10 +3099,6 @@ static void i915_hangcheck_elapsed(struct work_struct *work)
> if (engine->hangcheck.seqno == seqno) {
> if (i915_seqno_passed(seqno, submit)) {
> engine->hangcheck.action = HANGCHECK_IDLE;
> - if (busy) {
> - /* Safeguard against driver failure */
> - engine->hangcheck.score += BUSY;
> - }
> } else {
> /* We always increment the hangcheck score
> * if the engine is busy and still processing
> --
> 2.9.3
>
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