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| author | Jean-Sébastien Pédron <dumbbell@FreeBSD.org> | 2023-11-29 18:34:48 +0000 |
|---|---|---|
| committer | Jean-Sébastien Pédron <dumbbell@FreeBSD.org> | 2023-11-29 18:54:14 +0000 |
| commit | 40c20fc29cad4d38d9a565e9c7ba78612097308e (patch) | |
| tree | 24e53132e20b0700d1decba5054f245925abb0c4 | |
| parent | f54a3890b1f419d4a9edc99000efef52b9071b8f (diff) | |
| download | src-40c20fc29cad4d38d9a565e9c7ba78612097308e.tar.gz src-40c20fc29cad4d38d9a565e9c7ba78612097308e.zip | |
vt(4): Call post-switch callback after replacing the backend
[Why]
For instance, it gives a chance to the new backend to refresh the
screen. This is needed by the vt_drmfb backend and `drm_fb_helper`.
This change was lost when I posted changes to reviews.freebsd.org and it
broken the amdgpu driver... Thanks to manu@ for reporting the problem
and wulf@ to find out the missing change!
Tested by: manu
Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D42834
| -rw-r--r-- | sys/dev/vt/vt_core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/dev/vt/vt_core.c b/sys/dev/vt/vt_core.c index d6268db3537b..92c83aee5967 100644 --- a/sys/dev/vt/vt_core.c +++ b/sys/dev/vt/vt_core.c @@ -3283,6 +3283,13 @@ vt_replace_backend(const struct vt_driver *drv, void *softc) /* Update windows sizes and initialize last items. */ vt_upgrade(vd); + /* + * Give a chance to the new backend to run the post-switch code, for + * instance to refresh the screen. + */ + if (vd->vd_driver->vd_postswitch) + vd->vd_driver->vd_postswitch(vd); + #ifdef DEV_SPLASH if (vd->vd_flags & VDF_SPLASH) vtterm_splash(vd); |