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| author | Shixiong Ou <oushixiong@kylinos.cn> | 2026-08-28 17:01:23 +0800 |
|---|---|---|
| committer | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2026-09-20 20:48:52 +0300 |
| commit | 6947b78df4d25bd1e86b26870b614ea54c625b1e (patch) | |
| tree | 94134368eb2c2a4d44106f18f30a0b24a39649f9 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 846b3c64fe3e77d9db20a7e3e62dbbb637c773e1 (diff) | |
| download | linux-next-6947b78df4d25bd1e86b26870b614ea54c625b1e.tar.gz linux-next-6947b78df4d25bd1e86b26870b614ea54c625b1e.zip | |
drm/virtio: Add pixel blend mode property to cursor plane
The cursor plane exposes a format with an alpha channel
(DRM_FORMAT_ARGB8888) without a pixel blend mode property. Since
commit 860e748bddcc ("drm: ensure blend mode supported if pixel
format with alpha exposed") this triggers a warning during
drm_mode_config_validate():
[ 0.649020] ------------[ cut here ]------------
[ 0.649040] [PLANE:36:plane-1] pixel format with alpha exposed but blend mode not setup
[ 0.649081] WARNING: drivers/gpu/drm/drm_mode_config.c:872 at drm_mode_config_validate
......
[ 0.649761] Call trace:
[ 0.649764] drm_mode_config_validate+0x398/0x558 [drm] (P)
[ 0.649912] drm_dev_register+0x1cc/0x2a0 [drm]
[ 0.650058] virtio_gpu_probe+0xd4/0x1c0 [virtio_gpu]
[ 0.650088] virtio_dev_probe+0x1c8/0x310
......
[ 0.650261] ---[ end trace 0000000000000000 ]---
Create the property with the only supported blend mode,
DRM_MODE_BLEND_PREMULTI, which is also the property's default and
matches what userspace had to assume before the property existed.
Fixes: 860e748bddcc ("drm: ensure blend mode supported if pixel format with alpha exposed")
Reported-by: Ye Liu <liuye@kylinos.cn>
Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patch.msgid.link/20260828090123.784944-1-oushixiong1025@163.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions