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drm/i915/gen9: Add WaDisableSkipCaching

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Make sure that we never enable skip caching on gen9 by
accident.

References: HSD#2134698
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465309159-30531-17-git-send-email-mika.kuoppala@intel.com
This commit is contained in:
Mika Kuoppala 2016-06-07 17:19:08 +03:00 committed by Mika Kuoppala
parent ad2bdb44b1
commit 6fc29133ea
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/i915/intel_mocs.c
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@ -156,6 +156,16 @@ static bool get_mocs_settings(struct drm_i915_private *dev_priv,
"Platform that should have a MOCS table does not.\n");
}
/* WaDisableSkipCaching:skl,bxt,kbl */
if (IS_GEN9(dev_priv)) {
int i;
for (i = 0; i < table->size; i++)
if (WARN_ON(table->table[i].l3cc_value &
(L3_ESC(1) || L3_SCC(0x7))))
return false;
}
return result;
}