Re: [RFC 2/5] Rename skl_plane_id to wm_plane_id

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On Wed, Jun 01, 2016 at 08:10:18AM +0100, chix.ding@xxxxxxxxx wrote:
> From: Chi Ding <chix.ding@xxxxxxxxx>
> 
> This function will be used not only by SKL but also VLV/CHV.
> Therefore it's renamed.
> 
> Signed-off-by: Chi Ding <chix.ding@xxxxxxxxx>

As with the first patch, you should update the patch headline.  Other
than that,

Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>

> 
> cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> cc: matthew.d.roper@xxxxxxxxx
> cc: yetundex.adebisi@xxxxxxxxx
> ---
>  drivers/gpu/drm/i915/intel_pm.c | 59 +++++++++++++++++++++--------------------
>  1 file changed, 30 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index b6dfd02..a3942df 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -54,6 +54,28 @@
>  #define INTEL_RC6p_ENABLE			(1<<1)
>  #define INTEL_RC6pp_ENABLE			(1<<2)
>  
> +/*
> + * Return the index of a plane in the DDB and wm result arrays.  Primary
> + * plane is always in slot 0, cursor is always in slot I915_MAX_PLANES-1, and
> + * other universal planes are in indices 1..n.  Note that this may leave unused
> + * indices between the top "sprite" plane and the cursor.
> + */
> +static int
> +wm_plane_id(const struct intel_plane *plane)
> +{
> +	switch (plane->base.type) {
> +	case DRM_PLANE_TYPE_PRIMARY:
> +		return 0;
> +	case DRM_PLANE_TYPE_CURSOR:
> +		return PLANE_CURSOR;
> +	case DRM_PLANE_TYPE_OVERLAY:
> +		return plane->plane + 1;
> +	default:
> +		MISSING_CASE(plane->base.type);
> +		return plane->plane;
> +	}
> +}
> +
>  static void bxt_init_clock_gating(struct drm_device *dev)
>  {
>  	struct drm_i915_private *dev_priv = dev->dev_private;
> @@ -2828,27 +2850,6 @@ bool ilk_disable_lp_wm(struct drm_device *dev)
>  #define SKL_DDB_SIZE		896	/* in blocks */
>  #define BXT_DDB_SIZE		512
>  
> -/*
> - * Return the index of a plane in the SKL DDB and wm result arrays.  Primary
> - * plane is always in slot 0, cursor is always in slot I915_MAX_PLANES-1, and
> - * other universal planes are in indices 1..n.  Note that this may leave unused
> - * indices between the top "sprite" plane and the cursor.
> - */
> -static int
> -skl_wm_plane_id(const struct intel_plane *plane)
> -{
> -	switch (plane->base.type) {
> -	case DRM_PLANE_TYPE_PRIMARY:
> -		return 0;
> -	case DRM_PLANE_TYPE_CURSOR:
> -		return PLANE_CURSOR;
> -	case DRM_PLANE_TYPE_OVERLAY:
> -		return plane->plane + 1;
> -	default:
> -		MISSING_CASE(plane->base.type);
> -		return plane->plane;
> -	}
> -}
>  
>  static void
>  skl_ddb_get_pipe_allocation_limits(struct drm_device *dev,
> @@ -3011,7 +3012,7 @@ skl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate)
>  
>  	/* Calculate and cache data rate for each plane */
>  	for_each_plane_in_state(state, plane, pstate, i) {
> -		id = skl_wm_plane_id(to_intel_plane(plane));
> +		id = wm_plane_id(to_intel_plane(plane));
>  		intel_plane = to_intel_plane(plane);
>  
>  		if (intel_plane->pipe != intel_crtc->pipe)
> @@ -3030,7 +3031,7 @@ skl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate)
>  
>  	/* Calculate CRTC's total data rate from cached values */
>  	for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
> -		int id = skl_wm_plane_id(intel_plane);
> +		int id = wm_plane_id(intel_plane);
>  
>  		/* packed/uv */
>  		total_data_rate += intel_cstate->wm.skl.plane_data_rate[id];
> @@ -3088,7 +3089,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
>  	/* 1. Allocate the mininum required blocks for each active plane */
>  	for_each_plane_in_state(state, plane, pstate, i) {
>  		intel_plane = to_intel_plane(plane);
> -		id = skl_wm_plane_id(intel_plane);
> +		id = wm_plane_id(intel_plane);
>  
>  		if (intel_plane->pipe != pipe)
>  			continue;
> @@ -3130,7 +3131,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
>  	for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
>  		unsigned int data_rate, y_data_rate;
>  		uint16_t plane_blocks, y_plane_blocks = 0;
> -		int id = skl_wm_plane_id(intel_plane);
> +		int id = wm_plane_id(intel_plane);
>  
>  		data_rate = cstate->wm.skl.plane_data_rate[id];
>  
> @@ -3321,7 +3322,7 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
>  			DRM_DEBUG_KMS("Requested display configuration exceeds system watermark limitations\n");
>  			DRM_DEBUG_KMS("Plane %d.%d: blocks required = %u/%u, lines required = %u/31\n",
>  				      to_intel_crtc(cstate->base.crtc)->pipe,
> -				      skl_wm_plane_id(to_intel_plane(pstate->plane)),
> +				      wm_plane_id(to_intel_plane(pstate->plane)),
>  				      res_blocks, ddb_allocation, res_lines);
>  
>  			return -EINVAL;
> @@ -3359,7 +3360,7 @@ skl_compute_wm_level(const struct drm_i915_private *dev_priv,
>  	memset(result, 0, sizeof(*result));
>  
>  	for_each_intel_plane_mask(dev, intel_plane, cstate->base.plane_mask) {
> -		int i = skl_wm_plane_id(intel_plane);
> +		int i = wm_plane_id(intel_plane);
>  
>  		plane = &intel_plane->base;
>  		intel_pstate = NULL;
> @@ -3428,7 +3429,7 @@ static void skl_compute_transition_wm(struct intel_crtc_state *cstate,
>  
>  	/* Until we know more, just disable transition WMs */
>  	for_each_intel_plane_on_crtc(crtc->dev, intel_crtc, intel_plane) {
> -		int i = skl_wm_plane_id(intel_plane);
> +		int i = wm_plane_id(intel_plane);
>  
>  		trans_wm->plane_en[i] = false;
>  	}
> @@ -4068,7 +4069,7 @@ void skl_wm_get_hw_state(struct drm_device *dev)
>  		for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
>  			const struct drm_plane_state *pstate =
>  				intel_plane->base.state;
> -			int id = skl_wm_plane_id(intel_plane);
> +			int id = wm_plane_id(intel_plane);
>  
>  			cstate->wm.skl.plane_data_rate[id] =
>  				skl_plane_relative_data_rate(cstate, pstate, 0);
> -- 
> 1.8.0.1
> 

-- 
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
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