[PATCH 14/23] drm/i915: Prepare update_slave() for bigjoiner plane updates

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We want to program slave planes with the master plane_state for
properties such as FB, rotation, coordinates, etc, but the
slave plane_state for all programming parameters.

Instead of special casing NV12 Y-planes, we make the code more
generic, Y planes are programmed with separate state from the UV
plane.

This will allow us to program planes on a bigjoiner slave crtc in
a similar way.

This also requires the VMA to be copied to the slave, which is
done in prepare_plane_fb().

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
---
 .../gpu/drm/i915/display/intel_atomic_plane.c | 21 +++---
 .../gpu/drm/i915/display/intel_atomic_plane.h |  3 -
 drivers/gpu/drm/i915/display/intel_display.c  | 56 ++++++++++++--
 drivers/gpu/drm/i915/display/intel_display.h  |  3 +-
 .../drm/i915/display/intel_display_types.h    |  6 +-
 drivers/gpu/drm/i915/display/intel_sprite.c   | 75 ++++++++++---------
 6 files changed, 106 insertions(+), 58 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index a1a34b9981cc..964db7774d10 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -277,14 +277,15 @@ void intel_update_plane(struct intel_plane *plane,
 	plane->update_plane(plane, crtc_state, plane_state);
 }
 
-void intel_update_slave(struct intel_plane *plane,
-			const struct intel_crtc_state *crtc_state,
-			const struct intel_plane_state *plane_state)
+static void intel_update_slave(struct intel_plane *plane,
+			       const struct intel_crtc_state *crtc_state,
+			       const struct intel_plane_state *master_plane_state,
+			       const struct intel_plane_state *slave_plane_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 
 	trace_intel_update_plane(&plane->base, crtc);
-	plane->update_slave(plane, crtc_state, plane_state);
+	plane->update_slave(plane, crtc_state, master_plane_state, slave_plane_state);
 }
 
 void intel_disable_plane(struct intel_plane *plane,
@@ -324,6 +325,8 @@ void skl_update_planes_on_crtc(struct intel_atomic_state *state,
 		} else if (new_plane_state->planar_slave) {
 			struct intel_plane *master =
 				new_plane_state->planar_linked_plane;
+			struct intel_plane_state *master_plane_state =
+				intel_atomic_get_new_plane_state(state, master);
 
 			/*
 			 * We update the slave plane from this function because
@@ -331,13 +334,11 @@ void skl_update_planes_on_crtc(struct intel_atomic_state *state,
 			 * callback runs into issues when the Y plane is
 			 * reassigned, disabled or used by a different plane.
 			 *
-			 * The slave plane is updated with the master plane's
-			 * plane_state.
+			 * The slave plane is updated with the master's
+			 * plane_state as extra argument.
 			 */
-			new_plane_state =
-				intel_atomic_get_new_plane_state(state, master);
-
-			intel_update_slave(plane, new_crtc_state, new_plane_state);
+			intel_update_slave(plane, new_crtc_state,
+					   master_plane_state, new_plane_state);
 		} else {
 			intel_disable_plane(plane, 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 cb7ef4f9eafd..33fb85cd3909 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
@@ -23,9 +23,6 @@ unsigned int intel_plane_data_rate(const struct intel_crtc_state *crtc_state,
 void intel_update_plane(struct intel_plane *plane,
 			const struct intel_crtc_state *crtc_state,
 			const struct intel_plane_state *plane_state);
-void intel_update_slave(struct intel_plane *plane,
-			const struct intel_crtc_state *crtc_state,
-			const struct intel_plane_state *plane_state);
 void intel_disable_plane(struct intel_plane *plane,
 			 const struct intel_crtc_state *crtc_state);
 struct intel_plane *intel_plane_alloc(void);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 0424a378eb51..df588bf47559 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -3972,11 +3972,12 @@ static unsigned int skl_plane_stride_mult(const struct drm_framebuffer *fb,
 		return intel_tile_width_bytes(fb, color_plane);
 }
 
-u32 skl_plane_stride(const struct intel_plane_state *plane_state,
+u32 skl_plane_stride(const struct intel_plane_state *master_plane_state,
+		     const struct intel_plane_state *plane_state,
 		     int color_plane)
 {
-	const struct drm_framebuffer *fb = plane_state->base.fb;
-	unsigned int rotation = plane_state->base.rotation;
+	const struct drm_framebuffer *fb = master_plane_state->base.fb;
+	unsigned int rotation = master_plane_state->base.rotation;
 	u32 stride = plane_state->color_plane[color_plane].stride;
 
 	if (color_plane >= fb->format->num_planes)
@@ -11900,6 +11901,23 @@ static int icl_check_nv12_planes(struct intel_crtc_state *crtc_state)
 		crtc_state->active_planes |= BIT(linked->id);
 		crtc_state->update_planes |= BIT(linked->id);
 		DRM_DEBUG_KMS("Using %s as Y plane for %s\n", linked->base.name, plane->base.name);
+
+		/* Copy parameters to slave plane */
+		linked_state->ctl = plane_state->ctl | PLANE_CTL_YUV420_Y_PLANE;
+		linked_state->color_ctl = plane_state->color_ctl;
+		linked_state->color_plane[0] = plane_state->color_plane[0];
+
+		linked_state->base.src = plane_state->base.src;
+		linked_state->base.dst = plane_state->base.dst;
+
+		if (icl_is_hdr_plane(dev_priv, plane->id)) {
+			if (linked->id == PLANE_SPRITE5)
+				plane_state->cus_ctl |= PLANE_CUS_PLANE_7;
+			else if (linked->id == PLANE_SPRITE4)
+				plane_state->cus_ctl |= PLANE_CUS_PLANE_6;
+			else
+				MISSING_CASE(linked->id);
+		}
 	}
 
 	return 0;
@@ -14782,6 +14800,23 @@ intel_prepare_plane_fb(struct drm_plane *plane,
 			return ret;
 	}
 
+	if (to_intel_plane_state(new_state)->planar_slave) {
+		struct intel_plane_state *new_plane_state = to_intel_plane_state(new_state);
+		const struct intel_plane_state *linked_plane_state =
+			intel_atomic_get_new_plane_state(intel_state, new_plane_state->planar_linked_plane);
+
+		/*
+		 * We are a planar slave, VMA is on our planar master,
+		 * but may not be the same as the bigjoiner master plane.
+		 *
+		 * Copy the vma from our planar master and return.
+		 */
+		if (linked_plane_state->vma)
+			new_plane_state->vma =
+				i915_vma_get(linked_plane_state->vma);
+		return 0;
+	}
+
 	if (!obj)
 		return 0;
 
@@ -14851,10 +14886,11 @@ intel_prepare_plane_fb(struct drm_plane *plane,
  */
 void
 intel_cleanup_plane_fb(struct drm_plane *plane,
-		       struct drm_plane_state *old_state)
+		       struct drm_plane_state *_old_state)
 {
+	struct intel_plane_state *old_state = to_intel_plane_state(_old_state);
 	struct intel_atomic_state *intel_state =
-		to_intel_atomic_state(old_state->state);
+		to_intel_atomic_state(old_state->base.state);
 	struct drm_i915_private *dev_priv = to_i915(plane->dev);
 
 	if (intel_state->rps_interactive) {
@@ -14862,9 +14898,17 @@ intel_cleanup_plane_fb(struct drm_plane *plane,
 		intel_state->rps_interactive = false;
 	}
 
+	/* pin is handled in master plane_state for planar formats */
+	if (old_state->planar_slave) {
+		if (old_state->vma)
+			i915_vma_put(old_state->vma);
+		old_state->vma = NULL;
+		return;
+	}
+
 	/* Should only be called after a successful intel_prepare_plane_fb()! */
 	mutex_lock(&dev_priv->drm.struct_mutex);
-	intel_plane_unpin_fb(to_intel_plane_state(old_state));
+	intel_plane_unpin_fb(old_state);
 	mutex_unlock(&dev_priv->drm.struct_mutex);
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index b1ae0e59c715..764d05d13b9e 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -560,7 +560,8 @@ u32 glk_plane_color_ctl_crtc(const struct intel_crtc_state *crtc_state);
 u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
 		  const struct intel_plane_state *plane_state);
 u32 skl_plane_ctl_crtc(const struct intel_crtc_state *crtc_state);
-u32 skl_plane_stride(const struct intel_plane_state *plane_state,
+u32 skl_plane_stride(const struct intel_plane_state *master_plane_state,
+		     const struct intel_plane_state *plane_state,
 		     int plane);
 int skl_check_plane_surface(struct intel_plane_state *plane_state);
 int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 7e06c61447e6..ace372a76330 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -538,6 +538,9 @@ struct intel_plane_state {
 	/* plane color control register */
 	u32 color_ctl;
 
+	/* chroma upsampler control register */
+	u32 cus_ctl;
+
 	/*
 	 * scaler_id
 	 *    = -1 : not using a scaler
@@ -1097,7 +1100,8 @@ struct intel_plane {
 			     const struct intel_plane_state *plane_state);
 	void (*update_slave)(struct intel_plane *plane,
 			     const struct intel_crtc_state *crtc_state,
-			     const struct intel_plane_state *plane_state);
+			     const struct intel_plane_state *master_plane_state,
+			     const struct intel_plane_state *slave_plane_state);
 	void (*disable_plane)(struct intel_plane *plane,
 			      const struct intel_crtc_state *crtc_state);
 	bool (*get_hw_state)(struct intel_plane *plane, enum pipe *pipe);
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index f0956fecdea4..bca7ff8a8907 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -346,10 +346,11 @@ skl_plane_max_stride(struct intel_plane *plane,
 static void
 skl_program_scaler(struct intel_plane *plane,
 		   const struct intel_crtc_state *crtc_state,
+		   const struct intel_plane_state *master_plane_state,
 		   const struct intel_plane_state *plane_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
-	const struct drm_framebuffer *fb = plane_state->base.fb;
+	const struct drm_framebuffer *fb = master_plane_state->base.fb;
 	enum pipe pipe = plane->pipe;
 	int scaler_id = plane_state->scaler_id;
 	const struct intel_scaler *scaler =
@@ -527,28 +528,29 @@ icl_program_input_csc(struct intel_plane *plane,
 static void
 skl_program_plane(struct intel_plane *plane,
 		  const struct intel_crtc_state *crtc_state,
+		  const struct intel_plane_state *master_plane_state,
 		  const struct intel_plane_state *plane_state,
-		  int color_plane, bool slave, u32 plane_ctl)
+		  int color_plane)
 {
 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
 	enum plane_id plane_id = plane->id;
 	enum pipe pipe = plane->pipe;
-	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
+	const struct drm_intel_sprite_colorkey *key = &master_plane_state->ckey;
 	u32 surf_addr = plane_state->color_plane[color_plane].offset;
-	u32 stride = skl_plane_stride(plane_state, color_plane);
-	u32 aux_stride = skl_plane_stride(plane_state, 1);
+	u32 stride = skl_plane_stride(master_plane_state, plane_state, color_plane);
+	u32 aux_stride = skl_plane_stride(master_plane_state, plane_state, 1);
 	int crtc_x = plane_state->base.dst.x1;
 	int crtc_y = plane_state->base.dst.y1;
 	u32 x = plane_state->color_plane[color_plane].x;
 	u32 y = plane_state->color_plane[color_plane].y;
 	u32 src_w = drm_rect_width(&plane_state->base.src) >> 16;
 	u32 src_h = drm_rect_height(&plane_state->base.src) >> 16;
-	struct intel_plane *linked = plane_state->planar_linked_plane;
-	const struct drm_framebuffer *fb = plane_state->base.fb;
-	u8 alpha = plane_state->base.alpha >> 8;
+	const struct drm_framebuffer *fb = master_plane_state->base.fb;
+	u8 alpha = master_plane_state->base.alpha >> 8;
 	u32 plane_color_ctl = 0;
 	unsigned long irqflags;
 	u32 keymsk, keymax;
+	u32 plane_ctl = plane_state->ctl;
 
 	plane_ctl |= skl_plane_ctl_crtc(crtc_state);
 
@@ -580,32 +582,14 @@ skl_program_plane(struct intel_plane *plane,
 	I915_WRITE_FW(PLANE_AUX_DIST(pipe, plane_id),
 		      (plane_state->color_plane[1].offset - surf_addr) | aux_stride);
 
-	if (icl_is_hdr_plane(dev_priv, plane_id)) {
-		u32 cus_ctl = 0;
-
-		if (linked) {
-			/* Enable and use MPEG-2 chroma siting */
-			cus_ctl = PLANE_CUS_ENABLE |
-				PLANE_CUS_HPHASE_0 |
-				PLANE_CUS_VPHASE_SIGN_NEGATIVE |
-				PLANE_CUS_VPHASE_0_25;
-
-			if (linked->id == PLANE_SPRITE5)
-				cus_ctl |= PLANE_CUS_PLANE_7;
-			else if (linked->id == PLANE_SPRITE4)
-				cus_ctl |= PLANE_CUS_PLANE_6;
-			else
-				MISSING_CASE(linked->id);
-		}
-
-		I915_WRITE_FW(PLANE_CUS_CTL(pipe, plane_id), cus_ctl);
-	}
+	if (icl_is_hdr_plane(dev_priv, plane_id))
+		I915_WRITE_FW(PLANE_CUS_CTL(pipe, plane_id), plane_state->cus_ctl);
 
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
 		I915_WRITE_FW(PLANE_COLOR_CTL(pipe, plane_id), plane_color_ctl);
 
 	if (fb->format->is_yuv && icl_is_hdr_plane(dev_priv, plane_id))
-		icl_program_input_csc(plane, crtc_state, plane_state);
+		icl_program_input_csc(plane, crtc_state, master_plane_state);
 
 	skl_write_plane_wm(plane, crtc_state);
 
@@ -629,8 +613,8 @@ skl_program_plane(struct intel_plane *plane,
 	I915_WRITE_FW(PLANE_SURF(pipe, plane_id),
 		      intel_plane_ggtt_offset(plane_state) + surf_addr);
 
-	if (!slave && plane_state->scaler_id >= 0)
-		skl_program_scaler(plane, crtc_state, plane_state);
+	if (plane_state->scaler_id >= 0)
+		skl_program_scaler(plane, crtc_state, master_plane_state, plane_state);
 
 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
 }
@@ -647,17 +631,26 @@ skl_update_plane(struct intel_plane *plane,
 		color_plane = 1;
 	}
 
-	skl_program_plane(plane, crtc_state, plane_state,
-			  color_plane, false, plane_state->ctl);
+	skl_program_plane(plane, crtc_state, plane_state, plane_state, color_plane);
 }
 
 static void
 icl_update_slave(struct intel_plane *plane,
 		 const struct intel_crtc_state *crtc_state,
-		 const struct intel_plane_state *plane_state)
+		 const struct intel_plane_state *master_plane_state,
+		 const struct intel_plane_state *slave_plane_state)
 {
-	skl_program_plane(plane, crtc_state, plane_state, 0, true,
-			  plane_state->ctl | PLANE_CTL_YUV420_Y_PLANE);
+	const struct drm_framebuffer *fb = master_plane_state->base.fb;
+	int color_plane = 0;
+
+	if (drm_format_info_is_yuv_semiplanar(fb->format) &&
+	    !slave_plane_state->planar_slave) {
+		/* Program the UV plane, even as slave (Big joiner). */
+		color_plane = 1;
+	}
+
+	skl_program_plane(plane, crtc_state, master_plane_state,
+			  slave_plane_state, color_plane);
 }
 
 static void
@@ -1845,6 +1838,14 @@ static int skl_plane_check(struct intel_crtc_state *crtc_state,
 		plane_state->color_ctl = glk_plane_color_ctl(crtc_state,
 							     plane_state);
 
+	if (icl_is_hdr_plane(dev_priv, plane->id) && fb->format->is_yuv)
+		/* Enable and use MPEG-2 chroma siting */
+		plane_state->cus_ctl = PLANE_CUS_ENABLE |
+			PLANE_CUS_HPHASE_0 |
+			PLANE_CUS_VPHASE_SIGN_NEGATIVE | PLANE_CUS_VPHASE_0_25;
+	else
+		plane_state->cus_ctl = 0;
+
 	return 0;
 }
 
@@ -2513,7 +2514,7 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
 	plane->disable_plane = skl_disable_plane;
 	plane->get_hw_state = skl_plane_get_hw_state;
 	plane->check_plane = skl_plane_check;
-	if (icl_is_nv12_y_plane(plane_id))
+	if (INTEL_GEN(dev_priv) >= 11)
 		plane->update_slave = icl_update_slave;
 
 	if (INTEL_GEN(dev_priv) >= 11)
-- 
2.20.1

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