By using the out-of-line intel_wait_for_register() not only do we can
efficiency from using the hybrid wait_for() contained within, but we
avoid code bloat from the numerous inlined loops, in total (all patches):

   text    data     bss     dec     hex filename
1078551    4557     416 1083524  108884 drivers/gpu/drm/i915/i915.ko
1070775    4557     416 1075748  106a24 drivers/gpu/drm/i915/i915.ko

Signed-off-by: Chris Wilson <[email protected]>
Reviewed-by: Tvrtko Ursulin <[email protected]>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c 
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 04a2d141e690..7ef3e68c8fd6 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -515,8 +515,9 @@ static void intel_ring_setup_status_page(struct 
intel_engine_cs *engine)
                I915_WRITE(reg,
                           _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE |
                                              INSTPM_SYNC_FLUSH));
-               if (wait_for((I915_READ(reg) & INSTPM_SYNC_FLUSH) == 0,
-                            1000))
+               if (intel_wait_for_register(dev_priv,
+                                           reg, INSTPM_SYNC_FLUSH, 0,
+                                           1000))
                        DRM_ERROR("%s: wait for SyncFlush to complete for TLB 
invalidation timed out\n",
                                  engine->name);
        }
-- 
2.8.1

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