This is a note to let you know that I've just added the patch titled
drm/panic: Add ABGR2101010 support
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-panic-add-abgr2101010-support.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e8bde725b8086e47d07337a1f221cbe37905a875
Author: Jocelyn Falempe <jfalempe@xxxxxxxxxx>
Date: Tue Oct 22 20:39:47 2024 +0200
drm/panic: Add ABGR2101010 support
[ Upstream commit 04596969eea9e73b64d63be52aabfddb382e9ce6 ]
Add support for ABGR2101010, used by the nouveau driver.
Signed-off-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx>
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20241022185553.1103384-2-jfalempe@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c
index 74412b7bf936c..0a9ecc1380d2a 100644
--- a/drivers/gpu/drm/drm_panic.c
+++ b/drivers/gpu/drm/drm_panic.c
@@ -209,6 +209,14 @@ static u32 convert_xrgb8888_to_argb2101010(u32 pix)
return GENMASK(31, 30) /* set alpha bits */ | pix | ((pix >> 8) & 0x00300C03);
}
+static u32 convert_xrgb8888_to_abgr2101010(u32 pix)
+{
+ pix = ((pix & 0x00FF0000) >> 14) |
+ ((pix & 0x0000FF00) << 4) |
+ ((pix & 0x000000FF) << 22);
+ return GENMASK(31, 30) /* set alpha bits */ | pix | ((pix >> 8) & 0x00300C03);
+}
+
/*
* convert_from_xrgb8888 - convert one pixel from xrgb8888 to the desired format
* @color: input color, in xrgb8888 format
@@ -242,6 +250,8 @@ static u32 convert_from_xrgb8888(u32 color, u32 format)
return convert_xrgb8888_to_xrgb2101010(color);
case DRM_FORMAT_ARGB2101010:
return convert_xrgb8888_to_argb2101010(color);
+ case DRM_FORMAT_ABGR2101010:
+ return convert_xrgb8888_to_abgr2101010(color);
default:
WARN_ONCE(1, "Can't convert to %p4cc\n", &format);
return 0;
