Re: [PATCH v2 5/6] drm/i915: Update connector_mask during readout.

[Daniel Vetter <daniel@ffwll.ch>]

On Mon, Jan 04, 2016 at 12:53:19PM +0100, Maarten Lankhorst wrote:
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 1e42309ec40a..b76778d76035 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -15421,6 +15421,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc)
>  		WARN_ON(drm_atomic_set_mode_for_crtc(crtc->base.state, NULL) < 0);
>  		crtc->base.state->active = crtc->active;
>  		crtc->base.enabled = crtc->active;
> +		crtc->base.state->connector_mask = 0;
>  
>  		/* Because we only establish the connector -> encoder ->
>  		 * crtc links if something is active, this means the
> @@ -15456,20 +15457,24 @@ static void intel_sanitize_encoder(struct intel_encoder *encoder)
>  {
>  	struct intel_connector *connector;
>  	struct drm_device *dev = encoder->base.dev;
> +	struct drm_crtc *crtc = encoder->base.crtc;
>  	bool active = false;
>  
>  	/* We need to check both for a crtc link (meaning that the
>  	 * encoder is active and trying to read from a pipe) and the
>  	 * pipe itself being active. */
> -	bool has_active_crtc = encoder->base.crtc &&
> -		to_intel_crtc(encoder->base.crtc)->active;
> +	bool has_active_crtc = crtc && crtc->state->active;
>  
>  	for_each_intel_connector(dev, connector) {
>  		if (connector->base.encoder != &encoder->base)
>  			continue;
>  
>  		active = true;
> -		break;
> +		if (!has_active_crtc)
> +			break;
> +
> +		crtc->state->connector_mask |=
> +			1 << drm_connector_index(&connector->base);

I still think this is the wrong place. Imo this should be done in
intel_modeset_update_connector_atomic_state. It'd be great if we could
somehow share the logic with drm_atomic_set_crtc_for_connector even, but
that's probably over the top.
-Daniel

>  	}
>  
>  	if (active && !has_active_crtc) {
> -- 
> 2.1.0
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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