Quoting Chris Wilson (2019-12-07 17:01:09) > Execute the cmdparser asynchronously as part of the submission pipeline. > Using our dma-fences, we can schedule execution after an asynchronous > piece of work, so we move the cmdparser out from under the struct_mutex > inside execbuf as run it as part of the submission pipeline. The same > security rules apply, we copy the user batch before validation and > userspace cannot touch the validation shadow. The only caveat is that we > will do request construction before we complete cmdparsing and so we > cannot know the outcome of the validation step until later -- so the > execbuf ioctl does not report -EINVAL directly, but we must cancel > execution of the request and flag the error on the out-fence. Closes: https://gitlab.freedesktop.org/drm/intel/issues/611 > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
