[Intel-gfx] [PATCH v4 09/26] drm/i915/slpc: If using SLPC, do not set frequency

[Chris Wilson]

On Fri, Sep 09, 2016 at 06:21:28PM +0530, Sagar Arun Kamble wrote:
> From: Tom O'Rourke <Tom.O'Rourke at intel.com>
> 
> When frequency requests are made by SLPC, host driver
> should not attempt to make frequency requests due to
> potential conflicts.
> 
> Host-based turbo operations are already avoided when
> SLPC is used.  This change covers other frequency
> requests such as from sysfs or debugfs interfaces.
> 
> A later patch in this series updates sysfs/debugfs
> interfaces for setting max/min frequencies with SLPC.
> 
> v1: Use intel_slpc_active instead of HAS_SLPC (Paulo)
> 
> Signed-off-by: Tom O'Rourke <Tom.O'Rourke at intel.com>
> Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_pm.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index db5c4ef..d187066 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -5047,6 +5047,9 @@ void gen6_rps_boost(struct drm_i915_private *dev_priv,
>  
>  void intel_set_rps(struct drm_i915_private *dev_priv, u8 val)
>  {
> +	if (intel_slpc_active(dev_priv))
> +		return;

active not enabled?

All of the other checks in rps are enabled, right?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre