According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting.
DRM drivers will not perform display-mode changes or accelerated rendering and only the systewm system framebuffer will be available if it was set-up.
But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter.
Signed-off-by: Javier Martinez Canillas javierm@redhat.com ---
drivers/gpu/drm/xen/xen_drm_front.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c index 434064c820e8..20d11ea79e0f 100644 --- a/drivers/gpu/drm/xen/xen_drm_front.c +++ b/drivers/gpu/drm/xen/xen_drm_front.c @@ -495,6 +495,9 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info) struct drm_device *drm_dev; int ret;
+ if (drm_firmware_drivers_only()) + return -ENODEV; + DRM_INFO("Creating %s\n", xen_drm_driver.desc);
drm_info = kzalloc(sizeof(*drm_info), GFP_KERNEL);