[Intel-gfx] [PATCH v10 9/9] drm/i915/guc: Fix GuC cleanup in unload path

[Michal Wajdeczko]

On Wed, 27 Sep 2017 11:30:39 +0200, Sagar Arun Kamble  
<sagar.a.kamble at intel.com> wrote:

> We ensure that GuC is completely suspended and client is destroyed
> in i915_gem_suspend during i915_driver_unload. So now intel_uc_fini_hw
> should just take care of cleanup,
> hence s/intel_uc_fini_hw/intel_uc_cleanup. Correspondingly
> we also updated as s/i915_guc_submission_fini/i915_guc_submission_cleanup
> Other functionality to disable communication, disable interrupts and
> update of ggtt.invalidate is taken care by intel_uc_suspend.
>
> v2: Rebase w.r.t removal of GuC code restructuring.
>
> v3: Removed intel_guc_cleanup. (Michal Wajdeczko)
>
> v4: guc_free_load_err_log() needs to be called without checking
> i915.enable_guc_loading as this param is cleared on GuC load failure.
> (Michal Wajdeczko)
>
> Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
> Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
> Cc: Michał Winiarski <michal.winiarski at intel.com>
> Reviewed-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.c            |  2 +-
>  drivers/gpu/drm/i915/i915_guc_submission.c |  2 +-
>  drivers/gpu/drm/i915/intel_uc.c            | 14 ++++----------
>  drivers/gpu/drm/i915/intel_uc.h            |  4 ++--
>  4 files changed, 8 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c  
> b/drivers/gpu/drm/i915/i915_drv.c
> index f79646b..4223cee 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -603,7 +603,7 @@ static void i915_gem_fini(struct drm_i915_private  
> *dev_priv)
>  	i915_gem_drain_workqueue(dev_priv);
> 	mutex_lock(&dev_priv->drm.struct_mutex);
> -	intel_uc_fini_hw(dev_priv);
> +	intel_uc_cleanup(dev_priv);
>  	i915_gem_cleanup_engines(dev_priv);
>  	i915_gem_contexts_fini(dev_priv);
>  	i915_gem_cleanup_userptr(dev_priv);
> diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c  
> b/drivers/gpu/drm/i915/i915_guc_submission.c
> index 45f2ee8..0ac9bd4 100644
> --- a/drivers/gpu/drm/i915/i915_guc_submission.c
> +++ b/drivers/gpu/drm/i915/i915_guc_submission.c
> @@ -1053,7 +1053,7 @@ int i915_guc_submission_init(struct  
> drm_i915_private *dev_priv)
>  	return ret;
>  }
> -void i915_guc_submission_fini(struct drm_i915_private *dev_priv)
> +void i915_guc_submission_cleanup(struct drm_i915_private *dev_priv)
>  {
>  	struct intel_guc *guc = &dev_priv->guc;
> diff --git a/drivers/gpu/drm/i915/intel_uc.c  
> b/drivers/gpu/drm/i915/intel_uc.c
> index 59e6995..0370265 100644
> --- a/drivers/gpu/drm/i915/intel_uc.c
> +++ b/drivers/gpu/drm/i915/intel_uc.c
> @@ -439,7 +439,7 @@ int intel_uc_init_hw(struct drm_i915_private  
> *dev_priv)
>  	guc_capture_load_err_log(guc);
>  err_submission:
>  	if (i915_modparams.enable_guc_submission)
> -		i915_guc_submission_fini(dev_priv);
> +		i915_guc_submission_cleanup(dev_priv);
>  err_guc:
>  	i915_ggtt_disable_guc(dev_priv);
> @@ -461,21 +461,15 @@ int intel_uc_init_hw(struct drm_i915_private  
> *dev_priv)
>  	return ret;
>  }
> -void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
> +void intel_uc_cleanup(struct drm_i915_private *dev_priv)
>  {
>  	guc_free_load_err_log(&dev_priv->guc);
> 	if (!i915_modparams.enable_guc_loading)
>  		return;
> -	guc_disable_communication(&dev_priv->guc);
> -
> -	if (i915_modparams.enable_guc_submission) {
> -		gen9_disable_guc_interrupts(dev_priv);
> -		i915_guc_submission_fini(dev_priv);
> -	}
> -
> -	i915_ggtt_disable_guc(dev_priv);
> +	if (i915_modparams.enable_guc_submission)

In patch 6/9 you said we should avoid looking at user params
but here you're still using it ...

> +		i915_guc_submission_cleanup(dev_priv);
>  }
> /**
> diff --git a/drivers/gpu/drm/i915/intel_uc.h  
> b/drivers/gpu/drm/i915/intel_uc.h
> index 78ccbd9..838a364 100644
> --- a/drivers/gpu/drm/i915/intel_uc.h
> +++ b/drivers/gpu/drm/i915/intel_uc.h
> @@ -207,7 +207,7 @@ struct intel_huc {
>  void intel_uc_init_fw(struct drm_i915_private *dev_priv);
>  void intel_uc_fini_fw(struct drm_i915_private *dev_priv);
>  int intel_uc_init_hw(struct drm_i915_private *dev_priv);
> -void intel_uc_fini_hw(struct drm_i915_private *dev_priv);
> +void intel_uc_cleanup(struct drm_i915_private *dev_priv);
>  int intel_uc_runtime_suspend(struct drm_i915_private *dev_priv);
>  int intel_uc_runtime_resume(struct drm_i915_private *dev_priv);
>  int intel_uc_suspend(struct drm_i915_private *dev_priv);
> @@ -239,7 +239,7 @@ static inline void intel_guc_notify(struct intel_guc  
> *guc)
>  int i915_guc_submission_init(struct drm_i915_private *dev_priv);
>  int i915_guc_submission_enable(struct drm_i915_private *dev_priv);
>  void i915_guc_submission_disable(struct drm_i915_private *dev_priv);
> -void i915_guc_submission_fini(struct drm_i915_private *dev_priv);
> +void i915_guc_submission_cleanup(struct drm_i915_private *dev_priv);
>  struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32  
> size);
> /* intel_guc_log.c */