[PATCH 3/9] drm/i915: Move nv12 chroma plane handling into intel_surf_alignment()

[Imre Deak]

On Wed, Jan 04, 2017 at 08:42:26PM +0200, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Let's try to keep the alignment requirements in one place, and so
> towards that end let's move the AUX_DIST alignment handling into
> intel_surf_alignment() alongside the main surface alignment stuff.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Imre Deak <imre.deak at intel.com>

> ---
>  drivers/gpu/drm/i915/intel_display.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index f0cb80aba89a..4d514ca1da88 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2163,6 +2163,10 @@ static unsigned int intel_surf_alignment(const struct drm_framebuffer *fb,
>  {
>  	struct drm_i915_private *dev_priv = to_i915(fb->dev);
>  
> +	/* AUX_DIST needs only 4K alignment */
> +	if (fb->format->format == DRM_FORMAT_NV12 && plane == 1)
> +		return 4096;
> +
>  	switch (fb->modifier) {
>  	case DRM_FORMAT_MOD_NONE:
>  		return intel_linear_alignment(dev_priv);
> @@ -2452,13 +2456,7 @@ u32 intel_compute_tile_offset(int *x, int *y,
>  	const struct drm_framebuffer *fb = state->base.fb;
>  	unsigned int rotation = state->base.rotation;
>  	int pitch = intel_fb_pitch(fb, plane, rotation);
> -	u32 alignment;
> -
> -	/* AUX_DIST needs only 4K alignment */
> -	if (fb->format->format == DRM_FORMAT_NV12 && plane == 1)
> -		alignment = 4096;
> -	else
> -		alignment = intel_surf_alignment(fb, plane);
> +	u32 alignment = intel_surf_alignment(fb, plane);
>  
>  	return _intel_compute_tile_offset(dev_priv, x, y, fb, plane, pitch,
>  					  rotation, alignment);
> -- 
> 2.10.2
> 
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