Chris Wilson <ch...@chris-wilson.co.uk> writes:
> If we fail to reset the GPU (i915_reset()), we do one final
> intel_gpu_reset() attempt as we mark the device wedged. The idea here is
> even though the GPU has proven unreliable (and so we want to stop using
> it for the time being), we don't want it spinning away in the background
> whilst the driver idles so we try to reset it one more time. However, we
> want to dump the i915_gem_set_wedged() debugging info before we do, so
> that we can see the accurate state of the GPU when it failed.
>
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuopp...@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuopp...@linux.intel.com>
> ---
> drivers/gpu/drm/i915/i915_drv.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index cd57f946cf45..3ca3ce1e7359 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -1920,7 +1920,6 @@ void i915_reset(struct drm_i915_private *i915, unsigned
> int flags)
> ret = i915_gem_reset_prepare(i915);
> if (ret) {
> dev_err(i915->drm.dev, "GPU recovery failed\n");
> - intel_gpu_reset(i915, ALL_ENGINES);
> goto taint;
> }
>
> @@ -2003,6 +2002,7 @@ void i915_reset(struct drm_i915_private *i915, unsigned
> int flags)
> error:
> i915_gem_set_wedged(i915);
> i915_gem_retire_requests(i915);
> + intel_gpu_reset(i915, ALL_ENGINES);
> goto finish;
> }
>
> --
> 2.16.1
>
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