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 <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dp_mst.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 5f88e12575ac..c1d318601bf1 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -213,8 +213,11 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder)
DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
- if (wait_for((I915_READ(DP_TP_STATUS(port)) & DP_TP_STATUS_ACT_SENT),
- 1))
+ if (intel_wait_for_register(dev_priv,
+ DP_TP_STATUS(port),
+ DP_TP_STATUS_ACT_SENT,
+ DP_TP_STATUS_ACT_SENT,
+ 1))
DRM_ERROR("Timed out waiting for ACT sent\n");
ret = drm_dp_check_act_status(&intel_dp->mst_mgr);
--
2.8.1
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