Quoting Mika Kuoppala (2018-10-19 13:30:37) > If we try to initialize a framebuffer without pipes, we get oops > as we fail to get valid crtc for a PIPE A, on trying to find > pitch limits. This is easily demonstrated by trying to init > framebuffer with displays disabled by 'i915.disable_display=1' > kernel cmdline. > > Fix this by omitting framebuffer init early if there are no pipes. > > Testcase: igt/kms_addfb_basic > Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> > Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> To which Ville previously replied with the suggestion of preventing the ioctl from even getting this far, to whit if (!INTEL_INFO(dev_priv)->num_pipes) i915->drm.driver_features &= ~DRIVER_MODESET See https://patchwork.freedesktop.org/series/51000/ -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
