Re: [PATCH 05/18] drm/i915/display/display: Prefer drm_WARN_ON over WARN_ON

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Pankaj, the subject line is identical to patch 4, please update.

Imre, one question inline for you.

On Mon, 06 Apr 2020, Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@xxxxxxxxx> wrote:
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
> index 433e5a81dd4d..5475f989df4c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -1850,22 +1850,29 @@ static u64 __async_put_domains_mask(struct i915_power_domains *power_domains)
>  static bool
>  assert_async_put_domain_masks_disjoint(struct i915_power_domains *power_domains)
>  {
> -	return !WARN_ON(power_domains->async_put_domains[0] &
> -			power_domains->async_put_domains[1]);
> +	struct drm_i915_private *i915 = container_of(power_domains,
> +						     struct drm_i915_private,
> +						     power_domains);
> +	return !drm_WARN_ON(&i915->drm, power_domains->async_put_domains[0] &
> +			    power_domains->async_put_domains[1]);
>  }

Do we want to depend on struct i915_power_domains being a struct
drm_i915_private member via container_of?

BR,
Jani.

>  
>  static bool
>  __async_put_domains_state_ok(struct i915_power_domains *power_domains)
>  {
> +	struct drm_i915_private *i915 = container_of(power_domains,
> +						     struct drm_i915_private,
> +						     power_domains);
>  	enum intel_display_power_domain domain;
>  	bool err = false;
>  
>  	err |= !assert_async_put_domain_masks_disjoint(power_domains);
> -	err |= WARN_ON(!!power_domains->async_put_wakeref !=
> -		       !!__async_put_domains_mask(power_domains));
> +	err |= drm_WARN_ON(&i915->drm, !!power_domains->async_put_wakeref !=
> +			   !!__async_put_domains_mask(power_domains));
>  
>  	for_each_power_domain(domain, __async_put_domains_mask(power_domains))
> -		err |= WARN_ON(power_domains->domain_use_count[domain] != 1);
> +		err |= drm_WARN_ON(&i915->drm,
> +				   power_domains->domain_use_count[domain] != 1);
>  
>  	return !err;
>  }
> @@ -2107,11 +2114,14 @@ static void
>  queue_async_put_domains_work(struct i915_power_domains *power_domains,
>  			     intel_wakeref_t wakeref)
>  {
> -	WARN_ON(power_domains->async_put_wakeref);
> +	struct drm_i915_private *i915 = container_of(power_domains,
> +						     struct drm_i915_private,
> +						     power_domains);
> +	drm_WARN_ON(&i915->drm, power_domains->async_put_wakeref);
>  	power_domains->async_put_wakeref = wakeref;
> -	WARN_ON(!queue_delayed_work(system_unbound_wq,
> -				    &power_domains->async_put_work,
> -				    msecs_to_jiffies(100)));
> +	drm_WARN_ON(&i915->drm, !queue_delayed_work(system_unbound_wq,
> +						    &power_domains->async_put_work,
> +						    msecs_to_jiffies(100)));
>  }
>  
>  static void
> @@ -4318,6 +4328,9 @@ __set_power_wells(struct i915_power_domains *power_domains,
>  		  const struct i915_power_well_desc *power_well_descs,
>  		  int power_well_count)
>  {
> +	struct drm_i915_private *i915 = container_of(power_domains,
> +						     struct drm_i915_private,
> +						     power_domains);
>  	u64 power_well_ids = 0;
>  	int i;
>  
> @@ -4337,8 +4350,8 @@ __set_power_wells(struct i915_power_domains *power_domains,
>  		if (id == DISP_PW_ID_NONE)
>  			continue;
>  
> -		WARN_ON(id >= sizeof(power_well_ids) * 8);
> -		WARN_ON(power_well_ids & BIT_ULL(id));
> +		drm_WARN_ON(&i915->drm, id >= sizeof(power_well_ids) * 8);
> +		drm_WARN_ON(&i915->drm, power_well_ids & BIT_ULL(id));
>  		power_well_ids |= BIT_ULL(id);
>  	}

-- 
Jani Nikula, Intel Open Source Graphics Center
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