32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From c0169f2c197d005aff8acfbc618de6e7f6b1ab94 Mon Sep 17 00:00:00 2001
|
|
From: Florian Wesch <fw@dividuum.de>
|
|
Date: Tue, 5 Mar 2024 15:17:56 +0100
|
|
Subject: [PATCH 1285/1295] vc4/hvs: Fix lbm size calculation for yuv (#6012)
|
|
|
|
The code was reducing the number of components by one when we were not
|
|
blending with alpha. But that only makes sense if the components include
|
|
alpha.
|
|
|
|
For YUV, we were reducing the number of components for Y from one to zero
|
|
which resulted in no lbm space being allocated.
|
|
|
|
Fixes: https://github.com/raspberrypi/linux/issues/5912
|
|
|
|
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
|
|
Co-authored-by: Dom Cobley <popcornmix@gmail.com>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_plane.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_plane.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
|
|
@@ -733,7 +733,7 @@ static unsigned int vc4_lbm_channel_size
|
|
if (!components)
|
|
return 0;
|
|
|
|
- if (state->alpha != DRM_BLEND_ALPHA_OPAQUE)
|
|
+ if (state->alpha != DRM_BLEND_ALPHA_OPAQUE && info->has_alpha)
|
|
components -= 1;
|
|
|
|
words = width * wpc * components;
|