[PATCH 6/6] drm/i915/gtt: Enable full-ppgtt by default for HSW
Chris Wilson
chris at chris-wilson.co.uk
Thu May 31 08:19:01 UTC 2018
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 c50906e527bd..695ad470f209 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -179,7 +179,7 @@ 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
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