1 files changed, 0 insertions, 98 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0540-drm-vc4-plane-Improve-LBM-usage.patch b/target/linux/bcm27xx/patches-5.4/950-0540-drm-vc4-plane-Improve-LBM-usage.patch
deleted file mode 100644
index 5342e0ad23..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0540-drm-vc4-plane-Improve-LBM-usage.patch
+++ /dev/null
@@ -1,98 +0,0 @@
-From 81072e19a85bfa3f80c23acdff6156522d945efa Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.com>
-Date: Tue, 11 Feb 2020 16:55:02 +0000
-Subject: [PATCH] drm/vc4: plane: Improve LBM usage
-
-LBM allocations were always taking the worst case sizing of
-max(src_width, dst_width) * 16. This is significantly over
-the required sizing, and stops us rendering multiple 4k images
-to the screen.
-
-Add some of the additional constraints to more accurately
-describe the LBM requirements.
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
-Signed-off-by: Maxime Ripard <maxime@cerno.tech>
----
- drivers/gpu/drm/vc4/vc4_plane.c | 31 ++++++++++++++++++++-----------
- 1 file changed, 20 insertions(+), 11 deletions(-)
-
---- a/drivers/gpu/drm/vc4/vc4_plane.c
-+++ b/drivers/gpu/drm/vc4/vc4_plane.c
-@@ -142,9 +142,10 @@ static const struct hvs_format *vc4_get_
- 	return NULL;
- }
- 
--static enum vc4_scaling_mode vc4_get_scaling_mode(u32 src, u32 dst)
-+static enum vc4_scaling_mode vc4_get_scaling_mode(u32 src, u32 dst,
-+						  bool chroma_vrep)
- {
--	if (dst == src)
-+	if (dst == src && !chroma_vrep)
- 		return VC4_SCALING_NONE;
- 	if (3 * dst >= 2 * src)
- 		return VC4_SCALING_PPF;
-@@ -377,9 +378,11 @@ static int vc4_plane_setup_clipping_and_
- 		return ret;
- 
- 	vc4_state->x_scaling[0] = vc4_get_scaling_mode(vc4_state->src_w[0],
--						       vc4_state->crtc_w);
-+						       vc4_state->crtc_w,
-+						       false);
- 	vc4_state->y_scaling[0] = vc4_get_scaling_mode(vc4_state->src_h[0],
--						       vc4_state->crtc_h);
-+						       vc4_state->crtc_h,
-+						       false);
- 
- 	vc4_state->is_unity = (vc4_state->x_scaling[0] == VC4_SCALING_NONE &&
- 			       vc4_state->y_scaling[0] == VC4_SCALING_NONE);
-@@ -392,10 +395,12 @@ static int vc4_plane_setup_clipping_and_
- 
- 		vc4_state->x_scaling[1] =
- 			vc4_get_scaling_mode(vc4_state->src_w[1],
--					     vc4_state->crtc_w);
-+					     vc4_state->crtc_w,
-+					     v_subsample == 2);
- 		vc4_state->y_scaling[1] =
- 			vc4_get_scaling_mode(vc4_state->src_h[1],
--					     vc4_state->crtc_h);
-+					     vc4_state->crtc_h,
-+					     v_subsample == 2);
- 
- 		/* YUV conversion requires that horizontal scaling be enabled
- 		 * on the UV plane even if vc4_get_scaling_mode() returned
-@@ -445,10 +450,7 @@ static void vc4_write_ppf(struct vc4_pla
- static u32 vc4_lbm_size(struct drm_plane_state *state)
- {
- 	struct vc4_plane_state *vc4_state = to_vc4_plane_state(state);
--	/* This is the worst case number.  One of the two sizes will
--	 * be used depending on the scaling configuration.
--	 */
--	u32 pix_per_line = max(vc4_state->src_w[0], (u32)vc4_state->crtc_w);
-+	u32 pix_per_line;
- 	u32 lbm;
- 
- 	/* LBM is not needed when there's no vertical scaling. */
-@@ -456,6 +458,11 @@ static u32 vc4_lbm_size(struct drm_plane
- 	    vc4_state->y_scaling[1] == VC4_SCALING_NONE)
- 		return 0;
- 
-+	if (vc4_state->x_scaling[0] == VC4_SCALING_TPZ)
-+		pix_per_line = vc4_state->crtc_w;
-+	else
-+		pix_per_line = vc4_state->src_w[0];
-+
- 	if (!vc4_state->is_yuv) {
- 		if (vc4_state->y_scaling[0] == VC4_SCALING_TPZ)
- 			lbm = pix_per_line * 8;
-@@ -591,7 +598,9 @@ static int vc4_plane_allocate_lbm(struct
- 		spin_lock_irqsave(&vc4->hvs->mm_lock, irqflags);
- 		ret = drm_mm_insert_node_generic(&vc4->hvs->lbm_mm,
- 						 &vc4_state->lbm,
--						 lbm_size, 32, 0, 0);
-+						 lbm_size,
-+						 vc4->hvs->hvs5 ? 64 : 32,
-+						 0, 0);
- 		spin_unlock_irqrestore(&vc4->hvs->mm_lock, irqflags);
- 
- 		if (ret)