[PATCH 05/40] drm/i915: Don't disable PPGTT for CHV based in PCI rev

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

In
 commit 62942ed7279d3e06dc15ae3d47665eff3b373327
 Author: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
 Date:   Fri Jun 13 09:28:33 2014 -0700

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

we forgot about CHV. IS_VALLEYVIEW() is true for CHV, so we need to
explicitly avoid disabling PPGTT on CHV.

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index a4153ee..5188936 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -64,7 +64,8 @@ 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 < 0xb) {
+	if (IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) &&
+	    dev->pdev->revision < 0xb) {
 		DRM_DEBUG_DRIVER("disabling PPGTT on pre-B3 step VLV\n");
 		return 0;
 	}
-- 
1.8.5.5

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