Spec teels:
"It is required for GFX Driver to set [19:16] to 1 when
eDRAM configuration is enabled."
This basically reverts commit 666fbcf5c21d ("drm/i915: Don't
program eLLC IDI hash mask for gen9+")
This requirement hasn't changed since HSW up to CNL.
But that commit was created before EDRAM was properly
organized with commit 3accaf7e734d ("drm/i915: Store
and use edram capabilities")
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index f445587c1a4b..25b59dbb29b0 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4714,7 +4714,7 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
/* Double layer security blanket, see i915_gem_init() */
intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
- if (HAS_EDRAM(dev_priv) && INTEL_GEN(dev_priv) < 9)
+ if (HAS_EDRAM(dev_priv))
I915_WRITE(HSW_IDICR, I915_READ(HSW_IDICR) | IDIHASHMSK(0xf));
if (IS_HASWELL(dev_priv))
--
2.13.5
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