On Tue, Oct 27, 2020 at 11:19:16AM -0700, Navare, Manasi wrote:
> On Tue, Oct 27, 2020 at 03:42:30PM +0200, Ville Syrjälä wrote:
> > On Mon, Oct 26, 2020 at 03:41:48PM -0700, Navare, Manasi wrote:
> > > On Mon, Oct 26, 2020 at 10:18:54PM +0200, Ville Syrjälä wrote:
> > > > On Wed, Oct 21, 2020 at 10:42:21PM -0700, Manasi Navare wrote:
> > > > > From: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
> > > > > 
> > > > >  Make sure that when a plane is set in a bigjoiner mode, we will add
> > > > >  their counterpart to the atomic state as well. This will allow us to
> > > > >  make sure all state is available when planes are checked.
> > > > > 
> > > > > Because of the funny interactions with bigjoiner and planar YUV
> > > > > formats, we may end up adding a lot of planes, so we have to keep
> > > > > iterating until we no longer add any planes.
> > > > > 
> > > > > Also fix the atomic intel plane iterator, so things watermarks start
> > > > > working automagically.
> > > > > 
> > > > > v6:
> > > > > * Fix from_plane_state assignments (Manasi)
> > > > > v5:
> > > > > * Rebase after adding sagv support (Manasi)
> > > > > v4:
> > > > > * Manual rebase (Manasi)
> > > > > Changes since v1:
> > > > > - Rebase on top of plane_state split, cleaning up the code a lot.
> > > > > - Make intel_atomic_crtc_state_for_each_plane_state() bigjoiner 
> > > > > capable.
> > > > > - Add iter macro to intel_atomic_crtc_state_for_each_plane_state() to
> > > > >   keep iteration working.
> > > > > Changes since v2:
> > > > > - Add icl_(un)set_bigjoiner_plane_links, to make it more clear where
> > > > >   links are made and broken.
> > > > > 
> > > > > Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
> > > > > Signed-off-by: Manasi Navare <manasi.d.nav...@intel.com>
> > > > > ---
> > > > >  .../gpu/drm/i915/display/intel_atomic_plane.c |  53 ++++-
> > > > >  .../gpu/drm/i915/display/intel_atomic_plane.h |   3 +-
> > > > >  drivers/gpu/drm/i915/display/intel_display.c  | 207 
> > > > > ++++++++++++++++--
> > > > >  drivers/gpu/drm/i915/display/intel_display.h  |  20 +-
> > > > >  .../drm/i915/display/intel_display_types.h    |  11 +
> > > > >  drivers/gpu/drm/i915/intel_pm.c               |  20 +-
> > > > >  6 files changed, 274 insertions(+), 40 deletions(-)
> > > > > 
> > > > > diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c 
> > > > > b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
> > > > > index 3334ff253600..5df928f8f322 100644
> > > > > --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
> > > > > +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
> > > > > @@ -246,12 +246,17 @@ static void intel_plane_clear_hw_state(struct 
> > > > > intel_plane_state *plane_state)
> > > > >       memset(&plane_state->hw, 0, sizeof(plane_state->hw));
> > > > >  }
> > > > >  
> > > > > -void intel_plane_copy_uapi_to_hw_state(struct intel_plane_state 
> > > > > *plane_state,
> > > > > +void intel_plane_copy_uapi_to_hw_state(const struct intel_crtc_state 
> > > > > *crtc_state,
> > > > > +                                    struct intel_plane_state 
> > > > > *plane_state,
> > > > >                                      const struct intel_plane_state 
> > > > > *from_plane_state)
> > > > >  {
> > > > >       intel_plane_clear_hw_state(plane_state);
> > > > >  
> > > > > -     plane_state->hw.crtc = from_plane_state->uapi.crtc;
> > > > > +     if (from_plane_state->uapi.crtc)
> > > > > +             plane_state->hw.crtc = crtc_state->uapi.crtc;
> > > > > +     else
> > > > > +             plane_state->hw.crtc = NULL;
> > > > > +
> > > > >       plane_state->hw.fb = from_plane_state->uapi.fb;
> > > > >       if (plane_state->hw.fb)
> > > > >               drm_framebuffer_get(plane_state->hw.fb);
> > > > > @@ -320,15 +325,36 @@ int intel_plane_atomic_check_with_state(const 
> > > > > struct intel_crtc_state *old_crtc_
> > > > >  }
> > > > >  
> > > > >  static struct intel_crtc *
> > > > > -get_crtc_from_states(const struct intel_plane_state *old_plane_state,
> > > > > +get_crtc_from_states(struct intel_atomic_state *state,
> > > > > +                  const struct intel_plane_state *old_plane_state,
> > > > >                    const struct intel_plane_state *new_plane_state)
> > > > >  {
> > > > > +     struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> > > > > +     struct intel_plane *plane = 
> > > > > to_intel_plane(new_plane_state->uapi.plane);
> > > > > +
> > > > >       if (new_plane_state->uapi.crtc)
> > > > >               return to_intel_crtc(new_plane_state->uapi.crtc);
> > > > >  
> > > > >       if (old_plane_state->uapi.crtc)
> > > > >               return to_intel_crtc(old_plane_state->uapi.crtc);
> > > > >  
> > > > > +     if (new_plane_state->bigjoiner_slave) {
> > > > > +             const struct intel_plane_state *new_master_plane_state =
> > > > > +                     intel_atomic_get_new_plane_state(state, 
> > > > > new_plane_state->bigjoiner_plane);
> > > > > +
> > > > > +             /* need to use uapi here, new_master_plane_state might 
> > > > > not be copied to hw yet */
> > > > > +             if (new_master_plane_state->uapi.crtc)
> > > > > +                     return intel_get_crtc_for_pipe(dev_priv, 
> > > > > plane->pipe);
> > > > > +     }
> > > > > +
> > > > > +     if (old_plane_state->bigjoiner_slave) {
> > > > > +             const struct intel_plane_state *old_master_plane_state =
> > > > > +                     intel_atomic_get_old_plane_state(state, 
> > > > > old_plane_state->bigjoiner_plane);
> > > > > +
> > > > > +             if (old_master_plane_state->uapi.crtc)
> > > > > +                     return intel_get_crtc_for_pipe(dev_priv, 
> > > > > plane->pipe);
> > > > > +     }
> > > > > +
> > > > >       return NULL;
> > > > >  }
> > > > >  
> > > > > @@ -339,18 +365,33 @@ int intel_plane_atomic_check(struct 
> > > > > intel_atomic_state *state,
> > > > >               intel_atomic_get_new_plane_state(state, plane);
> > > > >       const struct intel_plane_state *old_plane_state =
> > > > >               intel_atomic_get_old_plane_state(state, plane);
> > > > > +     const struct intel_plane_state *new_master_plane_state;
> > > > >       struct intel_crtc *crtc =
> > > > > -             get_crtc_from_states(old_plane_state, new_plane_state);
> > > > > +             get_crtc_from_states(state, old_plane_state,
> > > > > +                                  new_plane_state);
> > > > >       const struct intel_crtc_state *old_crtc_state;
> > > > >       struct intel_crtc_state *new_crtc_state;
> > > > >  
> > > > > -     intel_plane_copy_uapi_to_hw_state(new_plane_state, 
> > > > > new_plane_state);
> > > > > +     if (crtc)
> > > > > +             new_crtc_state = intel_atomic_get_new_crtc_state(state, 
> > > > > crtc);
> > > > > +     else
> > > > > +             new_crtc_state = NULL;
> > > > > +
> > > > > +     new_master_plane_state = new_plane_state;
> > > > > +     if (new_plane_state->bigjoiner_slave)
> > > > > +             new_master_plane_state =
> > > > > +                     intel_atomic_get_new_plane_state(state,
> > > > > +                                                      
> > > > > new_plane_state->bigjoiner_plane);
> > > > > +
> > > > > +     intel_plane_copy_uapi_to_hw_state(new_crtc_state,
> > > > > +                                       new_plane_state,
> > > > > +                                       new_master_plane_state);
> > > > > +
> > > > >       new_plane_state->uapi.visible = false;
> > > > >       if (!crtc)
> > > > >               return 0;
> > > > >  
> > > > >       old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc);
> > > > > -     new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
> > > > >  
> > > > >       return intel_plane_atomic_check_with_state(old_crtc_state,
> > > > >                                                  new_crtc_state,
> > > > > diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.h 
> > > > > b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
> > > > > index 59dd1fbb02ea..c2a1e7c86e6c 100644
> > > > > --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h
> > > > > +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
> > > > > @@ -23,7 +23,8 @@ unsigned int intel_plane_pixel_rate(const struct 
> > > > > intel_crtc_state *crtc_state,
> > > > >  
> > > > >  unsigned int intel_plane_data_rate(const struct intel_crtc_state 
> > > > > *crtc_state,
> > > > >                                  const struct intel_plane_state 
> > > > > *plane_state);
> > > > > -void intel_plane_copy_uapi_to_hw_state(struct intel_plane_state 
> > > > > *plane_state,
> > > > > +void intel_plane_copy_uapi_to_hw_state(const struct intel_crtc_state 
> > > > > *crtc_state,
> > > > > +                                    struct intel_plane_state 
> > > > > *plane_state,
> > > > >                                      const struct intel_plane_state 
> > > > > *from_plane_state);
> > > > >  void intel_update_plane(struct intel_plane *plane,
> > > > >                       const struct intel_crtc_state *crtc_state,
> > > > > diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
> > > > > b/drivers/gpu/drm/i915/display/intel_display.c
> > > > > index c0715a3ea47b..579cccc1fd91 100644
> > > > > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > > > > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > > > > @@ -3718,7 +3718,7 @@ intel_find_initial_plane_obj(struct intel_crtc 
> > > > > *intel_crtc,
> > > > >       drm_framebuffer_get(fb);
> > > > >  
> > > > >       plane_state->crtc = &intel_crtc->base;
> > > > > -     intel_plane_copy_uapi_to_hw_state(intel_state, intel_state);
> > > > > +     intel_plane_copy_uapi_to_hw_state(crtc_state, intel_state, 
> > > > > intel_state);
> > > > >  
> > > > >       intel_frontbuffer_flush(to_intel_frontbuffer(fb), 
> > > > > ORIGIN_DIRTYFB);
> > > > >  
> > > > > @@ -12801,26 +12801,180 @@ static bool 
> > > > > check_single_encoder_cloning(struct intel_atomic_state *state,
> > > > >       return true;
> > > > >  }
> > > > >  
> > > > > +static int icl_unset_bigjoiner_plane_links(struct intel_atomic_state 
> > > > > *state,
> > > > > +                                        struct intel_crtc_state 
> > > > > *new_crtc_state)
> > > > > +{
> > > > > +     struct intel_crtc *crtc = 
> > > > > to_intel_crtc(new_crtc_state->uapi.crtc);
> > > > > +     struct intel_plane *plane;
> > > > > +
> > > > > +     /*
> > > > > +      * Teardown the old bigjoiner plane mappings.
> > > > > +      */
> > > > > +     for_each_intel_plane_on_crtc(crtc->base.dev, crtc, plane) {
> > > > > +             struct intel_plane_state *plane_state, 
> > > > > *other_plane_state;
> > > > > +             struct intel_plane *other_plane;
> > > > > +
> > > > > +             plane_state = intel_atomic_get_plane_state(state, 
> > > > > plane);
> > > > > +             if (IS_ERR(plane_state))
> > > > > +                     return PTR_ERR(plane_state);
> > > > > +
> > > > > +             other_plane = plane_state->bigjoiner_plane;
> > > > > +             if (!other_plane)
> > > > > +                     continue;
> > > > > +
> > > > > +             plane_state->bigjoiner_plane = NULL;
> > > > > +             plane_state->bigjoiner_slave = false;
> > > > > +
> > > > > +             other_plane_state = intel_atomic_get_plane_state(state, 
> > > > > other_plane);
> > > > > +             if (IS_ERR(other_plane_state))
> > > > > +                     return PTR_ERR(other_plane_state);
> > > > > +             other_plane_state->bigjoiner_plane = NULL;
> > > > > +             other_plane_state->bigjoiner_slave = false;
> > > > 
> > > > Why would we even need this bigjoiner stuff in the planes? AFAICS about
> > > > the only thing we should need is someting like
> > > > 
> > > > for_each_plane_on_master()
> > > >         add_same_plane_on_slave()
> > > > 
> > > > somewhere before we do the plane->check() stuff. I guess start
> > > > of intel_atomic_check_planes() could be the right spot.
> > > >
> > > 
> > > Yes may be but honestly I leave this optimization/change to the original
> > > author Maarten or you as a follow up
> > 
> > I don't want to see several hundred lines of totally uneccessary code
> > added. If it's buggy (which it may very well be because it's too big to
> > review properly) we are going to have to revert it anyway. If anything
> > else has changed in the same code the revertr is going to be a huge
> > pain.
> >
> 
> This entire patch just does the linking of planes and there is no
> unnecessary code.

Yes there is. Each plane should have a proper hw state so there 
should be absolutely no need for this linking stuff.

> Also since I am just a carrier of this code and not
> the original author I dont know how this can be simplified
> without breaking the functionality. 

You don't understand the code, I don't understand the code. How do
you suggest we can merge this? If there is any problem with the code
we have no choice but a full revert.

> So I am not able to address your concern here. If Maarten has the
> bandwidth he can jump in to rewrite this or you can.
> 
> Manasi
>  
> > > 
> > > Manasi
> > >  
> > > > > +     }
> > > > > +     return 0;
> > > > > +}
> > > > > +
> > > > > +static int icl_set_bigjoiner_plane_links(struct intel_atomic_state 
> > > > > *state,
> > > > > +                                      struct intel_crtc_state 
> > > > > *new_crtc_state)
> > > > > +{
> > > > > +     struct intel_plane *plane;
> > > > > +     struct intel_crtc *crtc = 
> > > > > to_intel_crtc(new_crtc_state->uapi.crtc);
> > > > > +     struct intel_crtc *other_crtc = 
> > > > > new_crtc_state->bigjoiner_linked_crtc;
> > > > > +
> > > > > +     /*
> > > > > +         * Setup and teardown the new bigjoiner plane mappings.
> > > > > +         */
> > > > > +     for_each_intel_plane_on_crtc(crtc->base.dev, crtc, plane) {
> > > > > +             struct intel_plane_state *plane_state;
> > > > > +             struct intel_plane *other_plane = NULL;
> > > > > +             bool found_plane = false;
> > > > > +
> > > > > +             plane_state = intel_atomic_get_plane_state(state, 
> > > > > plane);
> > > > > +             if (IS_ERR(plane_state))
> > > > > +                     return PTR_ERR(plane_state);
> > > > > +
> > > > > +             for_each_intel_plane_on_crtc(crtc->base.dev, 
> > > > > other_crtc, other_plane) {
> > > > > +                     if (other_plane->id != plane->id)
> > > > > +                             continue;
> > > > > +
> > > > > +                     plane_state->bigjoiner_plane = other_plane;
> > > > > +                     plane_state->bigjoiner_slave = 
> > > > > new_crtc_state->bigjoiner_slave;
> > > > > +
> > > > > +                     plane_state = 
> > > > > intel_atomic_get_plane_state(state, other_plane);
> > > > > +                     if (IS_ERR(plane_state))
> > > > > +                             return PTR_ERR(plane_state);
> > > > > +
> > > > > +                     plane_state->bigjoiner_plane = plane;
> > > > > +                     plane_state->bigjoiner_slave = 
> > > > > !new_crtc_state->bigjoiner_slave;
> > > > > +
> > > > > +                     found_plane = true;
> > > > > +                     break;
> > > > > +             }
> > > > > +
> > > > > +             if (!found_plane) {
> > > > > +                     /* All pipes should have identical planes. */
> > > > > +                     WARN_ON(!found_plane);
> > > > > +                     return -EINVAL;
> > > > > +             }
> > > > > +     }
> > > > > +     return 0;
> > > > > +}
> > > > > +
> > > > > +static int icl_add_dependent_planes(struct intel_atomic_state *state,
> > > > > +                                 struct intel_plane_state 
> > > > > *plane_state)
> > > > > +{
> > > > > +     struct intel_plane_state *new_plane_state;
> > > > > +     struct intel_plane *plane;
> > > > > +     int ret = 0;
> > > > > +
> > > > > +     plane = plane_state->bigjoiner_plane;
> > > > > +     if (plane && !intel_atomic_get_new_plane_state(state, plane)) {
> > > > > +             new_plane_state = intel_atomic_get_plane_state(state, 
> > > > > plane);
> > > > > +             if (IS_ERR(new_plane_state))
> > > > > +                     return PTR_ERR(new_plane_state);
> > > > > +
> > > > > +             ret = 1;
> > > > > +     }
> > > > > +
> > > > > +     plane = plane_state->planar_linked_plane;
> > > > > +     if (plane && !intel_atomic_get_new_plane_state(state, plane)) {
> > > > > +             new_plane_state = intel_atomic_get_plane_state(state, 
> > > > > plane);
> > > > > +             if (IS_ERR(new_plane_state))
> > > > > +                     return PTR_ERR(new_plane_state);
> > > > > +
> > > > > +             ret = 1;
> > > > > +     }
> > > > > +
> > > > > +     return ret;
> > > > > +}
> > > > > +
> > > > >  static int icl_add_linked_planes(struct intel_atomic_state *state)
> > > > >  {
> > > > > -     struct intel_plane *plane, *linked;
> > > > > -     struct intel_plane_state *plane_state, *linked_plane_state;
> > > > > +     struct intel_plane *plane;
> > > > > +     struct intel_plane_state *old_plane_state, *new_plane_state;
> > > > > +     struct intel_crtc *crtc, *linked_crtc;
> > > > > +     struct intel_crtc_state *old_crtc_state, *new_crtc_state, 
> > > > > *linked_crtc_state;
> > > > > +     bool added;
> > > > >       int i;
> > > > >  
> > > > > -     for_each_new_intel_plane_in_state(state, plane, plane_state, i) 
> > > > > {
> > > > > -             linked = plane_state->planar_linked_plane;
> > > > > +     /*
> > > > > +      * Iteratively add plane_state->linked_plane and 
> > > > > plane_state->bigjoiner_plane
> > > > > +      *
> > > > > +      * This needs to be done repeatedly, because of is a funny 
> > > > > interaction;
> > > > > +      * the Y-plane may be assigned differently on the other 
> > > > > bigjoiner crtc,
> > > > > +      * and we could end up with the following evil recursion, when 
> > > > > only adding a
> > > > > +      * single plane to state:
> > > > > +         *
> > > > > +      * XRGB8888 master plane 6 adds NV12 slave Y-plane 6, which 
> > > > > adds slave UV plane 0,
> > > > > +      * which adds master UV plane 0, which adds master Y-plane 7, 
> > > > > which adds XRGB8888
> > > > > +      *slave plane 7.
> > > > > +      *
> > > > > +      * We could pull in even more because of old_plane_state vs 
> > > > > new_plane_state.
> > > > > +      *
> > > > > +      * Max depth = 5 (or 7 for evil case) in this case.
> > > > > +      * Number of passes will be less, because newly added planes 
> > > > > show up in the
> > > > > +      * same iteration round when added_plane->index > plane->index.
> > > > > +      */
> > > > > +     do {
> > > > > +             added = false;
> > > > >  
> > > > > -             if (!linked)
> > > > > -                     continue;
> > > > > +             for_each_oldnew_intel_plane_in_state(state, plane, 
> > > > > old_plane_state, new_plane_state, i) {
> > > > > +                     int ret, ret2;
> > > > >  
> > > > > -             linked_plane_state = 
> > > > > intel_atomic_get_plane_state(state, linked);
> > > > > -             if (IS_ERR(linked_plane_state))
> > > > > -                     return PTR_ERR(linked_plane_state);
> > > > > +                     ret = icl_add_dependent_planes(state, 
> > > > > old_plane_state);
> > > > > +                     if (ret < 0)
> > > > > +                             return ret;
> > > > > +
> > > > > +                     ret2 = icl_add_dependent_planes(state, 
> > > > > new_plane_state);
> > > > > +                     if (ret2 < 0)
> > > > > +                             return ret2;
> > > > > +
> > > > > +                     added |= ret || ret2;
> > > > > +             }
> > > > > +     } while (added);
> > > > > +
> > > > > +     /*
> > > > > +         * Make sure bigjoiner slave crtc's are also pulled in. This 
> > > > > is not done automatically
> > > > > +         * when adding slave planes, because plane_state->crtc is 
> > > > > null.
> > > > > +         */
> > > > > +     for_each_oldnew_intel_crtc_in_state(state, crtc, 
> > > > > old_crtc_state, new_crtc_state, i) {
> > > > > +             linked_crtc = old_crtc_state->bigjoiner_linked_crtc;
> > > > > +             if (linked_crtc) {
> > > > > +                     linked_crtc_state =
> > > > > +                             
> > > > > intel_atomic_get_crtc_state(&state->base, linked_crtc);
> > > > > +
> > > > > +                     if (IS_ERR(linked_crtc_state))
> > > > > +                             return PTR_ERR(linked_crtc_state);
> > > > > +             }
> > > > > +
> > > > > +             linked_crtc = new_crtc_state->bigjoiner_linked_crtc;
> > > > > +             if (linked_crtc && linked_crtc != 
> > > > > old_crtc_state->bigjoiner_linked_crtc) {
> > > > > +                     linked_crtc_state =
> > > > > +                             
> > > > > intel_atomic_get_crtc_state(&state->base, linked_crtc);
> > > > >  
> > > > > -             drm_WARN_ON(state->base.dev,
> > > > > -                         linked_plane_state->planar_linked_plane != 
> > > > > plane);
> > > > > -             drm_WARN_ON(state->base.dev,
> > > > > -                         linked_plane_state->planar_slave == 
> > > > > plane_state->planar_slave);
> > > > > +                     if (IS_ERR(linked_crtc_state))
> > > > > +                             return PTR_ERR(linked_crtc_state);
> > > > > +             }
> > > > >       }
> > > > >  
> > > > >       return 0;
> > > > > @@ -12860,6 +13014,7 @@ static int icl_check_nv12_planes(struct 
> > > > > intel_crtc_state *crtc_state)
> > > > >  
> > > > >       for_each_new_intel_plane_in_state(state, plane, plane_state, i) 
> > > > > {
> > > > >               struct intel_plane_state *linked_state = NULL;
> > > > > +             struct intel_plane_state *master_plane_state;
> > > > >  
> > > > >               if (plane->pipe != crtc->pipe ||
> > > > >                   !(crtc_state->nv12_planes & BIT(plane->id)))
> > > > > @@ -12903,7 +13058,14 @@ static int icl_check_nv12_planes(struct 
> > > > > intel_crtc_state *crtc_state)
> > > > >               memcpy(linked_state->color_plane, 
> > > > > plane_state->color_plane,
> > > > >                      sizeof(linked_state->color_plane));
> > > > >  
> > > > > -             intel_plane_copy_uapi_to_hw_state(linked_state, 
> > > > > plane_state);
> > > > > +             master_plane_state = plane_state;
> > > > > +             if (plane_state->bigjoiner_slave)
> > > > > +                     master_plane_state =
> > > > > +                             intel_atomic_get_new_plane_state(state,
> > > > > +                                                              
> > > > > plane_state->bigjoiner_plane);
> > > > > +
> > > > > +             intel_plane_copy_uapi_to_hw_state(crtc_state, 
> > > > > linked_state,
> > > > > +                                               master_plane_state);
> > > > >               linked_state->uapi.src = plane_state->uapi.src;
> > > > >               linked_state->uapi.dst = plane_state->uapi.dst;
> > > > >  
> > > > > @@ -15253,6 +15415,7 @@ static int 
> > > > > intel_atomic_check_bigjoiner(struct intel_atomic_state *state,
> > > > >       struct drm_i915_private *dev_priv = to_i915(state->base.dev);
> > > > >       struct intel_crtc_state *slave_crtc_state, *master_crtc_state;
> > > > >       struct intel_crtc *slave, *master;
> > > > > +     int ret;
> > > > >  
> > > > >       /* slave being enabled, is master is still claiming this crtc? 
> > > > > */
> > > > >       if (old_crtc_state->bigjoiner_slave) {
> > > > > @@ -15263,6 +15426,12 @@ static int 
> > > > > intel_atomic_check_bigjoiner(struct intel_atomic_state *state,
> > > > >                       goto claimed;
> > > > >       }
> > > > >  
> > > > > +     if (old_crtc_state->bigjoiner) {
> > > > > +             ret = icl_unset_bigjoiner_plane_links(state, 
> > > > > new_crtc_state);
> > > > > +             if (ret)
> > > > > +                     return ret;
> > > > > +     }
> > > > > +
> > > > >       if (!new_crtc_state->bigjoiner)
> > > > >               return 0;
> > > > >  
> > > > > @@ -15287,7 +15456,11 @@ static int 
> > > > > intel_atomic_check_bigjoiner(struct intel_atomic_state *state,
> > > > >       DRM_DEBUG_KMS("[CRTC:%d:%s] Used as slave for big joiner\n",
> > > > >                     slave->base.base.id, slave->base.name);
> > > > >  
> > > > > -     return copy_bigjoiner_crtc_state(slave_crtc_state, 
> > > > > new_crtc_state);
> > > > > +     ret = copy_bigjoiner_crtc_state(slave_crtc_state, 
> > > > > new_crtc_state);
> > > > > +     if (ret)
> > > > > +             return ret;
> > > > > +
> > > > > +     return icl_set_bigjoiner_plane_links(state, new_crtc_state);
> > > > >  
> > > > >  claimed:
> > > > >       DRM_DEBUG_KMS("[CRTC:%d:%s] Slave is enabled as normal CRTC, 
> > > > > but "
> > > > > @@ -16902,7 +17075,7 @@ intel_legacy_cursor_update(struct drm_plane 
> > > > > *_plane,
> > > > >       new_plane_state->uapi.crtc_w = crtc_w;
> > > > >       new_plane_state->uapi.crtc_h = crtc_h;
> > > > >  
> > > > > -     intel_plane_copy_uapi_to_hw_state(new_plane_state, 
> > > > > new_plane_state);
> > > > > +     intel_plane_copy_uapi_to_hw_state(new_crtc_state, 
> > > > > new_plane_state, new_plane_state);
> > > > >  
> > > > >       ret = intel_plane_atomic_check_with_state(crtc_state, 
> > > > > new_crtc_state,
> > > > >                                                 old_plane_state, 
> > > > > new_plane_state);
> > > > > diff --git a/drivers/gpu/drm/i915/display/intel_display.h 
> > > > > b/drivers/gpu/drm/i915/display/intel_display.h
> > > > > index 4f8dee9dfb4d..73f495bba141 100644
> > > > > --- a/drivers/gpu/drm/i915/display/intel_display.h
> > > > > +++ b/drivers/gpu/drm/i915/display/intel_display.h
> > > > > @@ -468,12 +468,20 @@ enum phy_fia {
> > > > >               for_each_if(crtc)
> > > > >  
> > > > >  #define intel_atomic_crtc_state_for_each_plane_state( \
> > > > > -               plane, plane_state, \
> > > > > -               crtc_state) \
> > > > > -     for_each_intel_plane_mask(((crtc_state)->uapi.state->dev), 
> > > > > (plane), \
> > > > > -                             ((crtc_state)->uapi.plane_mask)) \
> > > > > -             for_each_if ((plane_state = \
> > > > > -                           
> > > > > to_intel_plane_state(__drm_atomic_get_current_plane_state((crtc_state)->uapi.state,
> > > > >  &plane->base))))
> > > > > +     plane, iter, plane_state, \
> > > > > +     crtc_state) \
> > > > > +     for_each_intel_plane_mask(((crtc_state)->uapi.state->dev), 
> > > > > (iter), \
> > > > > +                               (((crtc_state)->bigjoiner_slave ?     
> > > > > \
> > > > > +                                 intel_atomic_get_new_crtc_state(    
> > > > > \
> > > > > +                                         
> > > > > to_intel_atomic_state((crtc_state)->uapi.state), \
> > > > > +                                         
> > > > > (crtc_state)->bigjoiner_linked_crtc) : \
> > > > > +                                 (crtc_state))->uapi.plane_mask))    
> > > > > \
> > > > > +     for_each_if ((((plane_state) = \
> > > > > +                    
> > > > > to_intel_plane_state(__drm_atomic_get_current_plane_state((crtc_state)->uapi.state,
> > > > >  &iter->base))), \
> > > > > +                   ((plane) = (plane_state)->bigjoiner_slave ? 
> > > > > (plane_state)->bigjoiner_plane : (iter)), \
> > > > > +                   ((plane_state) = (plane_state)->bigjoiner_slave ? 
> > > > > \
> > > > > +                    
> > > > > to_intel_plane_state(__drm_atomic_get_current_plane_state((crtc_state)->uapi.state,
> > > > >  &plane->base)) : \
> > > > > +                    (plane_state))))
> > > > >  
> > > > >  #define for_each_new_intel_connector_in_state(__state, connector, 
> > > > > new_connector_state, __i) \
> > > > >       for ((__i) = 0; \
> > > > > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h 
> > > > > b/drivers/gpu/drm/i915/display/intel_display_types.h
> > > > > index d82ba1b9d8ef..69e6b0dc03a2 100644
> > > > > --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> > > > > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> > > > > @@ -593,6 +593,17 @@ struct intel_plane_state {
> > > > >        */
> > > > >       struct intel_plane *planar_linked_plane;
> > > > >  
> > > > > +     /*
> > > > > +      * bigjoiner_plane:
> > > > > +      *
> > > > > +      * When 2 pipes are joined in a bigjoiner configuration,
> > > > > +      * points to the same plane on the other pipe.
> > > > > +      *
> > > > > +      * bigjoiner_slave is set on the slave pipe.
> > > > > +      */
> > > > > +     struct intel_plane *bigjoiner_plane;
> > > > > +     u32 bigjoiner_slave;
> > > > > +
> > > > >       /*
> > > > >        * planar_slave:
> > > > >        * If set don't update use the linked plane's state for updating
> > > > > diff --git a/drivers/gpu/drm/i915/intel_pm.c 
> > > > > b/drivers/gpu/drm/i915/intel_pm.c
> > > > > index 18e52763dfec..8400e53f3f94 100644
> > > > > --- a/drivers/gpu/drm/i915/intel_pm.c
> > > > > +++ b/drivers/gpu/drm/i915/intel_pm.c
> > > > > @@ -3144,7 +3144,7 @@ static int ilk_compute_pipe_wm(struct 
> > > > > intel_crtc_state *crtc_state)
> > > > >       struct drm_i915_private *dev_priv = 
> > > > > to_i915(crtc_state->uapi.crtc->dev);
> > > > >       struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> > > > >       struct intel_pipe_wm *pipe_wm;
> > > > > -     struct intel_plane *plane;
> > > > > +     struct intel_plane *plane, *iter;
> > > > >       const struct intel_plane_state *plane_state;
> > > > >       const struct intel_plane_state *pristate = NULL;
> > > > >       const struct intel_plane_state *sprstate = NULL;
> > > > > @@ -3154,7 +3154,7 @@ static int ilk_compute_pipe_wm(struct 
> > > > > intel_crtc_state *crtc_state)
> > > > >  
> > > > >       pipe_wm = &crtc_state->wm.ilk.optimal;
> > > > >  
> > > > > -     intel_atomic_crtc_state_for_each_plane_state(plane, 
> > > > > plane_state, crtc_state) {
> > > > > +     intel_atomic_crtc_state_for_each_plane_state(plane, iter, 
> > > > > plane_state, crtc_state) {
> > > > >               if (plane->base.type == DRM_PLANE_TYPE_PRIMARY)
> > > > >                       pristate = plane_state;
> > > > >               else if (plane->base.type == DRM_PLANE_TYPE_OVERLAY)
> > > > > @@ -3873,7 +3873,7 @@ static bool skl_crtc_can_enable_sagv(const 
> > > > > struct intel_crtc_state *crtc_state)
> > > > >  {
> > > > >       struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> > > > >       struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> > > > > -     struct intel_plane *plane;
> > > > > +     struct intel_plane *plane, *iter;
> > > > >       const struct intel_plane_state *plane_state;
> > > > >       int level, latency;
> > > > >  
> > > > > @@ -3886,7 +3886,7 @@ static bool skl_crtc_can_enable_sagv(const 
> > > > > struct intel_crtc_state *crtc_state)
> > > > >       if (crtc_state->hw.pipe_mode.flags & DRM_MODE_FLAG_INTERLACE)
> > > > >               return false;
> > > > >  
> > > > > -     intel_atomic_crtc_state_for_each_plane_state(plane, 
> > > > > plane_state, crtc_state) {
> > > > > +     intel_atomic_crtc_state_for_each_plane_state(plane, iter, 
> > > > > plane_state, crtc_state) {
> > > > >               const struct skl_plane_wm *wm =
> > > > >                       &crtc_state->wm.skl.optimal.planes[plane->id];
> > > > >  
> > > > > @@ -4708,12 +4708,12 @@ skl_get_total_relative_data_rate(struct 
> > > > > intel_crtc_state *crtc_state,
> > > > >                                u64 *plane_data_rate,
> > > > >                                u64 *uv_plane_data_rate)
> > > > >  {
> > > > > -     struct intel_plane *plane;
> > > > > +     struct intel_plane *plane, *iter;
> > > > >       const struct intel_plane_state *plane_state;
> > > > >       u64 total_data_rate = 0;
> > > > >  
> > > > >       /* Calculate and cache data rate for each plane */
> > > > > -     intel_atomic_crtc_state_for_each_plane_state(plane, 
> > > > > plane_state, crtc_state) {
> > > > > +     intel_atomic_crtc_state_for_each_plane_state(plane, iter, 
> > > > > plane_state, crtc_state) {
> > > > >               enum plane_id plane_id = plane->id;
> > > > >               u64 rate;
> > > > >  
> > > > > @@ -4735,12 +4735,12 @@ static u64
> > > > >  icl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state,
> > > > >                                u64 *plane_data_rate)
> > > > >  {
> > > > > -     struct intel_plane *plane;
> > > > > +     struct intel_plane *plane, *iter;
> > > > >       const struct intel_plane_state *plane_state;
> > > > >       u64 total_data_rate = 0;
> > > > >  
> > > > >       /* Calculate and cache data rate for each plane */
> > > > > -     intel_atomic_crtc_state_for_each_plane_state(plane, 
> > > > > plane_state, crtc_state) {
> > > > > +     intel_atomic_crtc_state_for_each_plane_state(plane, iter, 
> > > > > plane_state, crtc_state) {
> > > > >               enum plane_id plane_id = plane->id;
> > > > >               u64 rate;
> > > > >  
> > > > > @@ -5587,7 +5587,7 @@ static int skl_build_pipe_wm(struct 
> > > > > intel_crtc_state *crtc_state)
> > > > >  {
> > > > >       struct drm_i915_private *dev_priv = 
> > > > > to_i915(crtc_state->uapi.crtc->dev);
> > > > >       struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal;
> > > > > -     struct intel_plane *plane;
> > > > > +     struct intel_plane *plane, *iter;
> > > > >       const struct intel_plane_state *plane_state;
> > > > >       int ret;
> > > > >  
> > > > > @@ -5597,7 +5597,7 @@ static int skl_build_pipe_wm(struct 
> > > > > intel_crtc_state *crtc_state)
> > > > >        */
> > > > >       memset(pipe_wm->planes, 0, sizeof(pipe_wm->planes));
> > > > >  
> > > > > -     intel_atomic_crtc_state_for_each_plane_state(plane, plane_state,
> > > > > +     intel_atomic_crtc_state_for_each_plane_state(plane, iter, 
> > > > > plane_state,
> > > > >                                                    crtc_state) {
> > > > >  
> > > > >               if (INTEL_GEN(dev_priv) >= 11)
> > > > > -- 
> > > > > 2.19.1
> > > > > 
> > > > > _______________________________________________
> > > > > Intel-gfx mailing list
> > > > > Intel-gfx@lists.freedesktop.org
> > > > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> > > > 
> > > > -- 
> > > > Ville Syrjälä
> > > > Intel
> > 
> > -- 
> > Ville Syrjälä
> > Intel

-- 
Ville Syrjälä
Intel
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