From: Colin Xu <colin.xu@intel.com>
Date: Mon, 11 Jun 2018 15:39:36 +0800
Subject: drm/i915/gvt: Enable force wake support for BXT.
Git-commit: 47d9d3be5925688dfcc7407b0ae70013ba2dce2e
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

BXT forcewake is handled in the same way as SKL/KBL.

v2: Add missing inhibit_context restore for BXT.

Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/i915/gvt/scheduler.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -297,7 +297,8 @@ static int copy_workload_to_ring_buffer(
 	void *shadow_ring_buffer_va;
 	u32 *cs;
 
-	if (IS_KABYLAKE(req->i915) && is_inhibit_context(req->hw_context))
+	if ((IS_KABYLAKE(req->i915) || IS_BROXTON(req->i915))
+		&& is_inhibit_context(req->hw_context))
 		intel_vgpu_restore_inhibit_context(vgpu, req);
 
 	/* allocate shadow ring buffer */
@@ -904,7 +905,8 @@ static int workload_thread(void *priv)
 	struct intel_vgpu *vgpu = NULL;
 	int ret;
 	bool need_force_wake = IS_SKYLAKE(gvt->dev_priv)
-			|| IS_KABYLAKE(gvt->dev_priv);
+			|| IS_KABYLAKE(gvt->dev_priv)
+			|| IS_BROXTON(gvt->dev_priv);
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 
 	kfree(p);