[PATCH 02/75] drm/i915/gtt: Enable full-ppgtt by default for HSW

[Chris Wilson]

Let's see if we have all the kinks worked out and full-ppgtt now works
reliably on Haswell. If we can let userspace have full control over
their own ppgtt, it makes softpinning far more effective, in turn making
GPU dispatch far more efficient and more secure (due to better mm
segregation).

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index b5517c66c653..0dd9182e82e2 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -178,7 +178,7 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
 		return 0;
 	}
 
-	if (HAS_LOGICAL_RING_CONTEXTS(dev_priv)) {
+	if (HAS_LOGICAL_RING_CONTEXTS(dev_priv) || IS_HASWELL(dev_priv)) {
 		if (has_full_48bit_ppgtt)
 			return 3;
 
-- 
2.17.0