On Wed, 2022-12-21 at 13:05 +0100, Thomas Zimmermann wrote: > Hi > > Am 21.12.22 um 12:19 schrieb Jouni Högander: > > Checking if damage clip is valid is common to all fb helpers. > > Makes more sense to check it in higher level than adding into > > all helpers. > > It was a deliberate decision to separate damage clipping and dirty > updates; done in [1]. Clipping is an optional hint in our regular > damage > handling via drm_framebuffer_funcs.dirty. The fb_dirty callback now > follows that semantics. > > I mentioned that it would be better to implement those fb_ops > callbacks > for i915. But if you go with fb_dirty, please implement the clipping > test in your callback. Thank you for your comments. I have sent a new version. Please check. > > Best regards > Thomas > > [1] > https://patchwork.freedesktop.org/patch/509958/?series=109943&rev=3 > > > > > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > > Cc: Thomas Zimmermann <tzimmermann@xxxxxxx> > > Cc: Jani Nikula <jani.nikula@xxxxxxxxx> > > Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx> > > --- > > drivers/gpu/drm/drm_fb_helper.c | 4 ++++ > > drivers/gpu/drm/drm_fbdev_generic.c | 4 ---- > > 2 files changed, 4 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/gpu/drm/drm_fb_helper.c > > b/drivers/gpu/drm/drm_fb_helper.c > > index b3a731b9170a..78c889dbc610 100644 > > --- a/drivers/gpu/drm/drm_fb_helper.c > > +++ b/drivers/gpu/drm/drm_fb_helper.c > > @@ -384,6 +384,10 @@ static void drm_fb_helper_fb_dirty(struct > > drm_fb_helper *helper) > > clip->x2 = clip->y2 = 0; > > spin_unlock_irqrestore(&helper->damage_lock, flags); > > > > + /* Call damage handlers only if necessary */ > > + if (!(clip_copy.x1 < clip_copy.x2 && clip_copy.y1 < > > clip_copy.y2)) > > + return; > > + > > ret = helper->funcs->fb_dirty(helper, &clip_copy); > > if (ret) > > goto err; > > diff --git a/drivers/gpu/drm/drm_fbdev_generic.c > > b/drivers/gpu/drm/drm_fbdev_generic.c > > index 0a4c160e0e58..6c6bb0dd2ea8 100644 > > --- a/drivers/gpu/drm/drm_fbdev_generic.c > > +++ b/drivers/gpu/drm/drm_fbdev_generic.c > > @@ -334,10 +334,6 @@ static int drm_fbdev_fb_dirty(struct > > drm_fb_helper *helper, struct drm_clip_rect > > if (!drm_fbdev_use_shadow_fb(helper)) > > return 0; > > > > - /* Call damage handlers only if necessary */ > > - if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2)) > > - return 0; > > - > > if (helper->buffer) { > > ret = drm_fbdev_damage_blit(helper, clip); > > if (drm_WARN_ONCE(dev, ret, "Damage blitter failed: > > ret=%d\n", ret)) > > -- > Thomas Zimmermann > Graphics Driver Developer > SUSE Software Solutions Germany GmbH > Maxfeldstr. 5, 90409 Nürnberg, Germany > (HRB 36809, AG Nürnberg) > Geschäftsführer: Ivo Totev
