Re: [PATCH] drm/i915: Don't reject primayr plane windowing with color keying enabled on SKL+

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On Fri, Jan 15, 2016 at 08:46:53PM +0200, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> On SKL+ plane scaling is mutually exclusive with color keying. The code
> check for this, but during some refactoring the code got changed to
> also reject primary plane windowing when color keying is used. There is
> no such restriction in the hardware, so restore the original logic.
> 
> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Fixes: 061e4b8d650a ("drm/i915: clean up atomic plane check functions, v2.")
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

s/primayr/primary in your headline, but otherwise

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

Still waiting for CI to run the BAT on this...


Matt

> ---
>  drivers/gpu/drm/i915/intel_display.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index a726c5e91220..7bc56e217ecc 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -14019,11 +14019,12 @@ intel_check_primary_plane(struct drm_plane *plane,
>  	int max_scale = DRM_PLANE_HELPER_NO_SCALING;
>  	bool can_position = false;
>  
> -	/* use scaler when colorkey is not required */
> -	if (INTEL_INFO(plane->dev)->gen >= 9 &&
> -	    state->ckey.flags == I915_SET_COLORKEY_NONE) {
> -		min_scale = 1;
> -		max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state);
> +	if (INTEL_INFO(plane->dev)->gen >= 9) {
> +		/* use scaler when colorkey is not required */
> +		if (state->ckey.flags == I915_SET_COLORKEY_NONE) {
> +			min_scale = 1;
> +			max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state);
> +		}
>  		can_position = true;
>  	}
>  
> -- 
> 2.4.10
> 
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

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