From: Jocelyn Falempe jfalempe@redhat.com
[ Upstream commit 04596969eea9e73b64d63be52aabfddb382e9ce6 ]
Add support for ABGR2101010, used by the nouveau driver.
Signed-off-by: Jocelyn Falempe jfalempe@redhat.com Reviewed-by: Javier Martinez Canillas javierm@redhat.com Link: https://patchwork.freedesktop.org/patch/msgid/20241022185553.1103384-2-jfale... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/drm_panic.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c index 948aed00595eb..f762d7a2a9b43 100644 --- a/drivers/gpu/drm/drm_panic.c +++ b/drivers/gpu/drm/drm_panic.c @@ -198,6 +198,14 @@ 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 @@ -231,6 +239,8 @@ 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;