Quoting Jani Nikula (2018-10-22 15:09:06) > On Fri, 19 Oct 2018, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > > 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/ > > As well as https://patchwork.freedesktop.org/series/50962/ That doesn't seem to fix this particular or similar oopses. -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
