On Thu, Sep 13, 2018 at 05:02:05PM -0400, Lyude Paul wrote: > Hm, one nitpick here. Since /sys/kernel/debug/dri/*/state creation depends on > the driver supporting atomic, maybe it would be good to make it so that we set > DRIVER_ATOMIC in the driver_stub structure, then disable it per-device depending > on the nouveau_atomic setting + hw support. That way we can always have the > state debugfs file while maintaining nouveau's current behavior with exposing > atomic ioctls. Assuming that wouldn't have any unintended side-effects of course I'm not sure why there are three driver structs in nouveau. Maybe someone can just nuke two of them? > > On Thu, 2018-09-13 at 19:31 +0300, Ville Syrjala wrote: > > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > > > > We now have per-device driver_features, so let's use that > > to disable atomic only for pre-nv50. > > > > Cc: Ben Skeggs <bskeggs@xxxxxxxxxx> > > Cc: Lyude Paul <lyude@xxxxxxxxxx> > > Cc: nouveau@xxxxxxxxxxxxxxxxxxxxx > > Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> > > Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx> > > Suggested-by: Daniel Vetter <daniel.vetter@xxxxxxxx> > > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > > --- > > drivers/gpu/drm/nouveau/dispnv04/disp.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c > > b/drivers/gpu/drm/nouveau/dispnv04/disp.c > > index 70dce544984e..670535a68d3b 100644 > > --- a/drivers/gpu/drm/nouveau/dispnv04/disp.c > > +++ b/drivers/gpu/drm/nouveau/dispnv04/disp.c > > @@ -56,7 +56,7 @@ nv04_display_create(struct drm_device *dev) > > nouveau_display(dev)->fini = nv04_display_fini; > > > > /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */ > > - dev->driver->driver_features &= ~DRIVER_ATOMIC; > > + dev->driver_features &= ~DRIVER_ATOMIC; > > > > nouveau_hw_save_vga_fonts(dev, 1); > > -- Ville Syrjälä Intel _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
