Re: [Intel-gfx] [PATCH 6/9] drm/i915: Update connector_mask during readout.

[Maarten Lankhorst <maarten.lankhorst@linux.intel.com>]

Op 24-11-15 om 11:38 schreef Daniel Vetter:
> On Tue, Nov 24, 2015 at 10:34:33AM +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 dcc7ec7665c2..21b1984e828b 100644
>> --- a/drivers/gpu/drm/i915/intel_display.c
>> +++ b/drivers/gpu/drm/i915/intel_display.c
>> @@ -15309,6 +15309,7 @@ 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
>> @@ -15344,20 +15345,24 @@ 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);
> We might want to use the official set_crtc_for_connector/plane in all our
> hw state readout code. Is that possible? Would be perfect as a prep patch.
>
No, unfortunately that needs the full atomic state because it calls drm_atomic_get_crtc_state.

~Maarten
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