From 4ce533b5eb47ed90ede2d798018e036990bcf987 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 30 Jun 2016 15:33:37 +0100 Subject: [PATCH] drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register() 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 Reviewed-by: Tvrtko Ursulin Link: http://patchwork.freedesktop.org/patch/msgid/1467297225-21379-54-git-send-email-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/intel_sideband.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_sideband.c b/drivers/gpu/drm/i915/intel_sideband.c index c3998188cf35..56744471cbac 100644 --- a/drivers/gpu/drm/i915/intel_sideband.c +++ b/drivers/gpu/drm/i915/intel_sideband.c @@ -51,7 +51,9 @@ static int vlv_sideband_rw(struct drm_i915_private *dev_priv, u32 devfn, WARN_ON(!mutex_is_locked(&dev_priv->sb_lock)); - if (wait_for((I915_READ(VLV_IOSF_DOORBELL_REQ) & IOSF_SB_BUSY) == 0, 5)) { + if (intel_wait_for_register(dev_priv, + VLV_IOSF_DOORBELL_REQ, IOSF_SB_BUSY, 0, + 5)) { DRM_DEBUG_DRIVER("IOSF sideband idle wait (%s) timed out\n", is_read ? "read" : "write"); return -EAGAIN; -- 2.20.1