[Intel-gfx] [PATCH v11 10/12] drm/i915: Link planes in a bigjoiner configuration, v3.

Ville Syrjälä ville.syrjala at linux.intel.com
Tue Oct 27 13:42:30 UTC 2020


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.lankhorst at 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.lankhorst at linux.intel.com>
> > > Signed-off-by: Manasi Navare <manasi.d.navare at 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.

> 
> 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 at lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> > 
> > -- 
> > Ville Syrjälä
> > Intel

-- 
Ville Syrjälä
Intel


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