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drm/virtio: set fb_modifiers_not_supported

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Without this, the drm core advertises LINEAR modifier which is
incorrect.

Also userspace virgl does not support modifiers.  For example, it causes
chrome on ozone/drm to fail with "Failed to create scanout buffer".

Fixes: 2af104290d ("drm: introduce fb_modifiers_not_supported flag in mode_config")
Suggested-by: Shao-Chuan Lee <shaochuan@chromium.org>
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220831190601.1295129-1-olvaffe@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Chia-I Wu 2022-08-31 12:06:01 -07:00 committed by Gerd Hoffmann
parent fad08d6248
commit 85faca8ca0
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/virtio/virtgpu_display.c
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@ -349,6 +349,8 @@ int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
vgdev->ddev->mode_config.max_width = XRES_MAX;
vgdev->ddev->mode_config.max_height = YRES_MAX;
vgdev->ddev->mode_config.fb_modifiers_not_supported = true;
for (i = 0 ; i < vgdev->num_scanouts; ++i)
vgdev_output_init(vgdev, i);