[Intel-gfx] [PATCH 2/2] drm/i915: Warn if rps max frequency is not set

[Mika Kuoppala]

Mika Kuoppala <mika.kuoppala at linux.intel.com> writes:

> Warn on enabling rps when our hw max is invalid.
>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Signed-off-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_pm.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 19e82aaa9863..bc335c52a17a 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -8157,6 +8157,8 @@ static void intel_enable_rps(struct drm_i915_private *dev_priv)
>  		intel_init_emon(dev_priv);
>  	}
>  
> +	WARN_ON(rps->max_freq == 0);
> +
Ok, this wont fly with gen < 6
-Mika

>  	WARN_ON(rps->max_freq < rps->min_freq);
>  	WARN_ON(rps->idle_freq > rps->max_freq);
>  
> -- 
> 2.14.1