The current w/a for the gen7 psmi related hangs doesn't apply to bdw, so
disable it if using bdw ringbuffer submission.

Signed-off-by: Chris Wilson <[email protected]>
---
 drivers/gpu/drm/i915/i915_gem_context.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c 
b/drivers/gpu/drm/i915/i915_gem_context.c
index e8dc3e74c093..68dc81aee2f1 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -660,7 +660,7 @@ mi_set_context(struct drm_i915_gem_request *req, u32 flags)
        enum intel_engine_id id;
        const int num_rings =
                /* Use an extended w/a on ivb+ if signalling from other rings */
-               i915.semaphores ?
+               (i915.semaphores && INTEL_GEN(dev_priv) == 7) ?
                INTEL_INFO(dev_priv)->num_rings - 1 :
                0;
        int len;
-- 
2.11.0

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