drm/i915/cnl: Enable SAGV for Cannonlake.

For now inherit from previous platforms.

v2: Rebase on top of CFL.

Cc: Mahesh Kumar <mahesh1.kumar@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170809205248.11917-2-rodrigo.vivi@intel.com

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 04697fa..52bf62b 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3571,7 +3571,8 @@ static bool skl_needs_memory_bw_wa(struct intel_atomic_state *state)
 static bool
 intel_has_sagv(struct drm_i915_private *dev_priv)
 {
-       if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv))
+       if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv) ||
+           IS_CANNONLAKE(dev_priv))
                return true;
 
        if (IS_SKYLAKE(dev_priv) &&