drm/i915/bdw: Remove BDW preproduction W/As until C stepping.

Let's clean this a bit

v2: Rebase after other Mika's patch that removed some BDW production workarounds.
v3: Removed stepping info.

Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 7c0c28c65cb4..5ebe46a05a05 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -712,13 +712,12 @@ static int bdw_init_workarounds(struct intel_engine_cs *ring)
                 return ret;
 
         /* WaDisablePartialInstShootdown:bdw */
-        /* WaDisableThreadStallDopClockGating:bdw */
-        /* FIXME: Unclear whether we really need this on production bdw. */
+        /* WaDisableThreadStallDopClockGating:bdw (pre-production) */
         intel_ring_emit_wa(ring, GEN8_ROW_CHICKEN,
                            _MASKED_BIT_ENABLE(PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE
                                              | STALL_DOP_GATING_DISABLE));
 
-        /* WaDisableDopClockGating:bdw May not be needed for production */
+        /* WaDisableDopClockGating:bdw */
         intel_ring_emit_wa(ring, GEN7_ROW_CHICKEN2,
                            _MASKED_BIT_ENABLE(DOP_CLOCK_GATING_DISABLE));