On Wed, Jul 15, 2020 at 03:42:19PM -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.
> 
> 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 |  52 ++++-
>  .../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(+), 39 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c 
> b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
> index 79032701873a..5c6e72063fac 100644
> --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
> +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
> @@ -246,11 +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);
>  
> +     if (from_plane_state->uapi.crtc)
> +             plane_state->hw.crtc = crtc_state->uapi.crtc;
> +     else
> +             plane_state->hw.crtc = NULL;
> +
>       plane_state->hw.crtc = from_plane_state->uapi.crtc;

eh?

>       plane_state->hw.fb = from_plane_state->uapi.fb;
>       if (plane_state->hw.fb)
> @@ -319,15 +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;
>  }
>  
> @@ -338,18 +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 bfc5c890ab4e..6f4a2845674d 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -3693,7 +3693,7 @@ 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);
>  
> @@ -12582,26 +12582,180 @@ 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;
> +     }
> +     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.

Feels like this has become super complicated by mixing up the bigjoiner
and Y plane cases. Can't we just handle them separately. First deal with
bigjoiner planes, then let each crtc handle its Y-planes independently?

> +      *
> +      * 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;
> +
> +                     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_plane_state = intel_atomic_get_plane_state(state, 
> linked);
> -             if (IS_ERR(linked_plane_state))
> -                     return PTR_ERR(linked_plane_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;
> @@ -12641,6 +12795,7 @@ 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)))
> @@ -12684,7 +12839,14 @@ 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;
>  
> @@ -15028,6 +15190,7 @@ 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) {
> @@ -15038,6 +15201,12 @@ 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;
>  
> @@ -15062,7 +15231,11 @@ 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 "
> @@ -16531,7 +16704,7 @@ 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 e890c8fb779b..78010ee364f3 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.h
> +++ b/drivers/gpu/drm/i915/display/intel_display.h
> @@ -467,12 +467,20 @@ 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 943709f192f7..6957eac140cd 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -575,6 +575,17 @@ 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 d1263ebd3811..a3e3ac429fd4 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3150,7 +3150,7 @@ 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;
> @@ -3160,7 +3160,7 @@ 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)
> @@ -3879,7 +3879,7 @@ 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;
>  
> @@ -3892,7 +3892,7 @@ 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];
>  
> @@ -4714,12 +4714,12 @@ 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;
>  
> @@ -4741,12 +4741,12 @@ 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;
>  
> @@ -5593,7 +5593,7 @@ 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;
>  
> @@ -5603,7 +5603,7 @@ 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
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