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Commit 3d90e649 authored by Ville Syrjälä's avatar Ville Syrjälä
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drm/i915: Protect cxsr state with wm_mutex



Let's protect the cxsr state with the wm_mutex, since it might
get poked from multiple places if there's a parallel plane update
happening with a pipe getting enable/disabled.

It's still pretty racy for the old platforms, but for vlv/chv it
should work, I think. If not, we'll improve it later anyway.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1480354637-14209-10-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
parent 7c951c00
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