4.2.8-ckt9 -stable review patch.  If anyone has any objections, please let me 
know.

---8<------------------------------------------------------------

From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrj...@linux.intel.com>

commit 31318a922395ec9e78d6e2ddf70779355afc7594 upstream.

HSW still has the wake FIFO, so let's check it.

Cc: Mika Kuoppala <mika.kuopp...@linux.intel.com>
Cc: Deepak S <deepa...@linux.intel.com>
Fixes: 05a2fb157e44 ("drm/i915: Consolidate forcewake code")
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Link: 
http://patchwork.freedesktop.org/patch/msgid/1460633942-24013-1-git-send-email-ville.syrj...@linux.intel.com
Reviewed-by: Mika Kuoppala <mika.kuopp...@intel.com>
(cherry picked from commit 3d7d0c85e41afb5a05e98b3a8a72c38357f02594)
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
 drivers/gpu/drm/i915/intel_uncore.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_uncore.c 
b/drivers/gpu/drm/i915/intel_uncore.c
index 260389a..d1123d7 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1128,7 +1128,11 @@ static void intel_uncore_fw_domains_init(struct 
drm_device *dev)
        } else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
                dev_priv->uncore.funcs.force_wake_get =
                        fw_domains_get_with_thread_status;
-               dev_priv->uncore.funcs.force_wake_put = fw_domains_put;
+               if (IS_HASWELL(dev))
+                       dev_priv->uncore.funcs.force_wake_put =
+                               fw_domains_put_with_fifo;
+               else
+                       dev_priv->uncore.funcs.force_wake_put = fw_domains_put;
                fw_domain_init(dev_priv, FW_DOMAIN_ID_RENDER,
                               FORCEWAKE_MT, FORCEWAKE_ACK_HSW);
        } else if (IS_IVYBRIDGE(dev)) {
-- 
2.7.4

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