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drm/i915/wm: warn about ilk_wm_sanitize() on display ver 9+

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The sanitization should be limited to PCH split platforms up to display
version 8. Warn and bail out otherwise.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230215141910.433043-2-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2023-02-15 16:19:07 +02:00
parent 3dadb4a170
commit 7380f545a8
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/display/i9xx_wm.c
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@ -3437,6 +3437,9 @@ void ilk_wm_sanitize(struct drm_i915_private *dev_priv)
if (!dev_priv->display.funcs.wm->optimize_watermarks)
return;
if (drm_WARN_ON(&dev_priv->drm, DISPLAY_VER(dev_priv) >= 9))
return;
state = drm_atomic_state_alloc(&dev_priv->drm);
if (drm_WARN_ON(&dev_priv->drm, !state))
return;