On 10/25/22 12:17, Thomas Zimmermann wrote: > Move the vmap code for shadow-plane helpers from prepare_fb to > begin_fb_access helpers. Vunmap is now performed at the end of > the current pageflip, instead of the end of the following pageflip. > > Reduces the duration of the mapping from while the framebuffer is > being displayed to just the atomic commit. This is safe as outside > of the pageflip, nothing should access the mapped buffer memory. > Unmapping the framebuffer BO memory early allows reduces address-space "allows to reduce" or "allows a reduced" ? > consumption and possibly allows for evicting the memory pages. > > The change is effectively a rename of prepare_fb and cleanup_fb > implementations, plus updates to the shadow-plane init macro. As > there's no longer a prepare_fb helper for shadow planes, atomic > helpers will call drm_gem_plane_helper_prepare_fb() automatically. > > Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> > --- Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> -- Best regards, Javier Martinez Canillas Core Platforms Red Hat
