Commit 62942ed7 authored by Jesse Barnes's avatar Jesse Barnes Committed by Daniel Vetter

drm/i915/vlv: disable PPGTT on early revs v3

Early revs didn't have PPGTT support, so disable there.

v2: add debug msg when disabling on early stepping
v3: enable on other B3 packages as well (untested) (Ville)

References: https://bugs.freedesktop.org/show_bug.cgi?id=79669
References: https://bugs.freedesktop.org/show_bug.cgi?id=79670Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent d593d992
...@@ -63,6 +63,12 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) ...@@ -63,6 +63,12 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt)
} }
#endif #endif
/* Early VLV doesn't have this */
if (IS_VALLEYVIEW(dev) && dev->pdev->revision < 0xb) {
DRM_DEBUG_DRIVER("disabling PPGTT on pre-B3 step VLV\n");
return 0;
}
return HAS_ALIASING_PPGTT(dev) ? 1 : 0; return HAS_ALIASING_PPGTT(dev) ? 1 : 0;
} }
......
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