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drm/i915: Frob the correct crtc state in intel_crtc_disable_noatomic()

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The uapi vs. hw state split introduced a bug in
intel_crtc_disable_noatomic() where it's now frobbing an already
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@linux.intel.com>
Fixes: 58d124ea27 ("drm/i915: Complete crtc hw/uapi split, v6.")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191105171447.22111-1-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
This commit is contained in:
Ville Syrjälä 2019-11-05 19:14:46 +02:00
parent bee0a70a9e
commit 1e460bf9ea
1 changed files with 6 additions and 4 deletions
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10
drivers/gpu/drm/i915/display/intel_display.c
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@ -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);