Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> During hangcheck testing, we try to execute requests following the GPU
> reset, and in particular want to try and debug when those fail.
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/selftests/intel_hangcheck.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> index 08159b268893..7e1bdd88eda3 100644
> --- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> +++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> @@ -624,8 +624,11 @@ static int igt_wait_reset(void *arg)
> __i915_add_request(rq, true);
>
> if (!wait_for_hang(&h, rq)) {
> + struct drm_printer p = drm_info_printer(i915->drm.dev);
> +
> pr_err("Failed to start request %x, at %x\n",
> rq->fence.seqno, hws_seqno(&h, rq));
> + intel_engine_dump(rq->engine, &p);
>
> i915_reset(i915, 0);
> i915_gem_set_wedged(i915);
> @@ -716,8 +719,12 @@ static int igt_reset_queue(void *arg)
> __i915_add_request(rq, true);
>
> if (!wait_for_hang(&h, prev)) {
> + struct drm_printer p = drm_info_printer(i915->drm.dev);
> +
> pr_err("Failed to start request %x, at %x\n",
> prev->fence.seqno, hws_seqno(&h, prev));
> + intel_engine_dump(rq->engine, &p);
> +
> i915_gem_request_put(rq);
> i915_gem_request_put(prev);
>
> @@ -818,8 +825,11 @@ static int igt_handle_error(void *arg)
> __i915_add_request(rq, true);
>
> if (!wait_for_hang(&h, rq)) {
> + struct drm_printer p = drm_info_printer(i915->drm.dev);
> +
> pr_err("Failed to start request %x, at %x\n",
> rq->fence.seqno, hws_seqno(&h, rq));
> + intel_engine_dump(rq->engine, &p);
>
> i915_reset(i915, 0);
> i915_gem_set_wedged(i915);
> --
> 2.14.2
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