Op 09-09-2019 om 17:52 schreef Manasi Navare:
> In the transcoder port sync mode, the slave transcoders mask their vblanks
> until master transcoder's vblank so while disabling them, make
> sure slaves are disabled first and then the masters.
>
> v4:
> * Obtain slave state from master (Maarten)
> v3:
> * Rebase
> v2:
> * Use the intel_old_crtc_state_disables() helper
>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
> Cc: Matt Roper <matthew.d.ro...@intel.com>
> Cc: Jani Nikula <jani.nik...@intel.com>
> Signed-off-by: Manasi Navare <manasi.d.nav...@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 62 ++++++++++++++++++--
>  1 file changed, 56 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
> b/drivers/gpu/drm/i915/display/intel_display.c
> index ac6e880570ea..8c333280d8f5 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -14074,8 +14074,42 @@ static void intel_old_crtc_state_disables(struct 
> intel_atomic_state *state,
>                                                    new_crtc_state);
>  }
>  
> +static void intel_trans_port_sync_modeset_disables(struct intel_atomic_state 
> *state,
> +                                                struct intel_crtc *crtc,
> +                                                struct intel_crtc_state 
> *old_crtc_state,
> +                                                struct intel_crtc_state 
> *new_crtc_state)
> +{
> +     struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> +     struct intel_crtc *slave_crtc = intel_get_slave_crtc(dev_priv,
> +                                                          new_crtc_state);
> +     struct intel_crtc_state *new_slave_crtc_state =
> +             intel_atomic_get_new_crtc_state(state, slave_crtc);
> +     struct intel_crtc_state *old_slave_crtc_state =
> +             intel_atomic_get_old_crtc_state(state, slave_crtc);
> +
> +     WARN_ON(!slave_crtc || !new_slave_crtc_state ||
> +             !old_slave_crtc_state);
> +
> +     /* Disable Slave first */
> +     intel_pre_plane_update(old_slave_crtc_state, new_slave_crtc_state);
> +     if (old_slave_crtc_state->base.active)
> +             intel_old_crtc_state_disables(state,
> +                                           old_slave_crtc_state,
> +                                           new_slave_crtc_state,
> +                                           slave_crtc);
> +
> +     /* Disable Master */
> +     intel_pre_plane_update(old_crtc_state, new_crtc_state);
> +     if (old_crtc_state->base.active)
> +             intel_old_crtc_state_disables(state,
> +                                           old_crtc_state,
> +                                           new_crtc_state,
> +                                           crtc);
> +}
> +
>  static void intel_commit_modeset_disables(struct intel_atomic_state *state)
>  {
> +     struct drm_i915_private *dev_priv = to_i915(state->base.dev);
>       struct intel_crtc_state *new_crtc_state, *old_crtc_state;
>       struct intel_crtc *crtc;
>       int i;
> @@ -14092,13 +14126,29 @@ static void intel_commit_modeset_disables(struct 
> intel_atomic_state *state)
>               if (!needs_modeset(new_crtc_state))
>                       continue;
>  
> -             intel_pre_plane_update(old_crtc_state, new_crtc_state);
> +             /* In case of Transcoder port Sync master slave CRTCs can be
> +              * assigned in any order and we need to make sure that
> +              * slave CRTCs are disabled first and then master CRTC since
> +              * Slave vblanks are masked till Master Vblanks.
> +              */
> +             if (is_trans_port_sync_mode(dev_priv, new_crtc_state)) {
> +                     if (is_trans_port_sync_master(dev_priv,
> +                                                   new_crtc_state))
> +                             intel_trans_port_sync_modeset_disables(state,
> +                                                                    crtc,
> +                                                                    
> old_crtc_state,
> +                                                                    
> new_crtc_state);
> +                     else
> +                             continue;
> +             } else {
> +                     intel_pre_plane_update(old_crtc_state, new_crtc_state);
>  
> -             if (old_crtc_state->base.active)
> -                     intel_old_crtc_state_disables(state,
> -                                                   old_crtc_state,
> -                                                   new_crtc_state,
> -                                                   crtc);
> +                     if (old_crtc_state->base.active)
> +                             intel_old_crtc_state_disables(state,
> +                                                           old_crtc_state,
> +                                                           new_crtc_state,
> +                                                           crtc);
> +             }
>       }
>  }
>  

Series looks good with those fixes:

Reviewed-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>

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