On Wed, Nov 06, 2019 at 12:53:45PM +0100, Maarten Lankhorst wrote:
> Op 05-11-2019 om 18:14 schreef Ville Syrjala:
> > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> >
> > The uapi vs. hw state split introduced a bug in
> > intel_crtc_disable_noatomic() where it's not frobbing an already
s/not/now/ and pushed to dinq. Thanks for the review.
> > freed temp crtc state instead of adjusting the crtc state we
> > are really left with. Fix that by making a cleaner separation
> > beteen the two.
> >
> > This causes explosions on any machine that boots up with pipes
> > already running but not hooked up to any encoder (typical
> > behaviour for gen2-4 VBIOS).
> >
> > Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> > Fixes: 58d124ea2739 ("drm/i915: Complete crtc hw/uapi split, v6.")
> > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > ---
> > drivers/gpu/drm/i915/display/intel_display.c | 10 ++++++----
> > 1 file changed, 6 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> > index 876fc25968bf..1f93860fb897 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > @@ -7191,11 +7191,13 @@ static void intel_crtc_disable_noatomic(struct drm_crtc *crtc,
> > struct drm_i915_private *dev_priv = to_i915(crtc->dev);
> > struct intel_bw_state *bw_state =
> > to_intel_bw_state(dev_priv->bw_obj.state);
> > + struct intel_crtc_state *crtc_state =
> > + to_intel_crtc_state(crtc->state);
> > enum intel_display_power_domain domain;
> > struct intel_plane *plane;
> > u64 domains;
> > struct drm_atomic_state *state;
> > - struct intel_crtc_state *crtc_state;
> > + struct intel_crtc_state *temp_crtc_state;
> > int ret;
> >
> > if (!intel_crtc->active)
> > @@ -7219,12 +7221,12 @@ static void intel_crtc_disable_noatomic(struct drm_crtc *crtc,
> > state->acquire_ctx = ctx;
> >
> > /* Everything's already locked, -EDEADLK can't happen. */
> > - crtc_state = intel_atomic_get_crtc_state(state, intel_crtc);
> > + temp_crtc_state = intel_atomic_get_crtc_state(state, intel_crtc);
> > ret = drm_atomic_add_affected_connectors(state, crtc);
> >
> > - WARN_ON(IS_ERR(crtc_state) || ret);
> > + WARN_ON(IS_ERR(temp_crtc_state) || ret);
> >
> > - dev_priv->display.crtc_disable(crtc_state, to_intel_atomic_state(state));
> > + dev_priv->display.crtc_disable(temp_crtc_state, to_intel_atomic_state(state));
> >
> > drm_atomic_state_put(state);
> >
>
> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
>
--
Ville Syrjälä
Intel
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
