[Intel-gfx] [PATCH] drm/i915/vlv: disable PPGTT on early revs
Jesse Barnes
jbarnes at virtuousgeek.org
Fri Jun 13 17:32:38 CEST 2014
Early revs didn't have PPGTT support, so disable there.
References: https://bugs.freedesktop.org/show_bug.cgi?id=79669
References: https://bugs.freedesktop.org/show_bug.cgi?id=79670
Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 8b3cde7..01287d9 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -63,6 +63,10 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt)
}
#endif
+ /* Early VLV doesn't have this */
+ if (IS_VALLEYVIEW(dev) && dev->pdev->revision < 0xc)
+ return 0;
+
return HAS_ALIASING_PPGTT(dev) ? 1 : 0;
}
--
1.7.9.5
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