Op 17-04-16 om 21:42 schreef Chris Wilson: > The legacy cursor ioctl expects to be asynchronous with respect to other > screen updates, in particular page flips. As X updates the cursor from a > signal context, if the cursor blocks then it will stall both the input > and output chains causing bad stuttering and horrible UX. > > Reported-and-tested-by: Rafael Ristovski <rafael.ristovski@xxxxxxxxx> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94980 > Fixes: 5008e874edd34 ("drm/i915: Make wait_for_flips interruptible.") > Suggested-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> > Cc: Jani Nikula <jani.nikula@xxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx > --- > drivers/gpu/drm/i915/intel_display.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index 4cca155376be..c5b9687091f4 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -13446,6 +13446,9 @@ static int intel_atomic_prepare_commit(struct drm_device *dev, > } > > for_each_crtc_in_state(state, crtc, crtc_state, i) { > + if (state->legacy_cursor_update) > + continue; > + > ret = intel_crtc_wait_for_pending_flips(crtc); > if (ret) > return ret; Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
