Op 29-03-17 om 02:27 schreef r...@ubuntu.com: > From: Christopher James Halse Rogers <christopher.halse.rog...@canonical.com> > > Any use of the framebuffer will migrate it to VRAM, which is not sensible for > an imported dma-buf. > > Signed-off-by: Christopher James Halse Rogers > <christopher.halse.rog...@canonical.com> > CC: nouveau@lists.freedesktop.org > --- > drivers/gpu/drm/nouveau/nouveau_display.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c > b/drivers/gpu/drm/nouveau/nouveau_display.c > index 72fdba1a1c5d..e8e6bc7b6d51 100644 > --- a/drivers/gpu/drm/nouveau/nouveau_display.c > +++ b/drivers/gpu/drm/nouveau/nouveau_display.c > @@ -286,6 +286,10 @@ nouveau_user_framebuffer_create(struct drm_device *dev, > return ERR_PTR(-ENOENT); > nvbo = nouveau_gem_object(gem); > > + /* Handle is an imported dma-buf, so cannot be migrated to VRAM */ > + if (gem->import_attach) > + return ERR_PTR(-EINVAL); > + > ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb); > if (ret == 0) > return &fb->base;
I don't know if there's really a hard requirement for nouveau to scan out from GART on nv50+, but it might be a bigger problem on earlier platforms. Acked-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com> _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/nouveau
