Quoting Michal Wajdeczko (2017-12-01 10:33:14) > -EIO has special meaning and is used when we want to allow > engine initialization to fail and mark GPU as wedged. > Missing firmware does not fit into this scenario as this is > permanent error not related to GPU condition. > > Signed-off-by: Michal Wajdeczko <[email protected]> > Cc: Chris Wilson <[email protected]> > Cc: Joonas Lahtinen <[email protected]> > Cc: Sagar Arun Kamble <[email protected]>
Ok, keeping -EIO to mean something special is a good idea. So if upload now fails, we abort loading of the driver with ENOEXEC. Is that sensible? Let's say due to fs corruption, or other error, we aren't able to upload a fw, what should we do? If we abort the driver load at this point, the user is likely left with a blank screen. If we use -EIO, at least KMS is still functional and the user can still interact with the system. (If we just fell back to execlists, then the system remains very usable.) What is the plan for HW initialisation failure? -Chris _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
