[Intel-gfx] [PATCH v2 4/5] drm/i915/selftests: Hold the rpm wakeref for the reset tests

[Mika Kuoppala]

Chris Wilson <chris at chris-wilson.co.uk> writes:

> The lowlevel reset functions expect the caller to be holding the rpm
> wakeref for the device access across the reset. We were not explicitly
> doing this in the sefltest, so for simplicity acquire the wakeref for
> the duration of all subtests.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>

Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>

> ---
>  drivers/gpu/drm/i915/selftests/intel_hangcheck.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> index 7e1bdd88eda3..71ce06680d66 100644
> --- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> +++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> @@ -878,9 +878,16 @@ int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
>  		SUBTEST(igt_reset_queue),
>  		SUBTEST(igt_handle_error),
>  	};
> +	int err;
>  
>  	if (!intel_has_gpu_reset(i915))
>  		return 0;
>  
> -	return i915_subtests(tests, i915);
> +	intel_runtime_pm_get(i915);
> +
> +	err = i915_subtests(tests, i915);
> +
> +	intel_runtime_pm_put(i915);
> +
> +	return err;
>  }
> -- 
> 2.14.2