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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 <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1467297225-21379-27-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-06-30 15:33:10 +01:00
parent 9036ff06c2
commit a767017f48
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/intel_dp.c
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@ -3322,8 +3322,10 @@ void intel_dp_set_idle_link_train(struct intel_dp *intel_dp)
if (port == PORT_A)
return;
if (wait_for((I915_READ(DP_TP_STATUS(port)) & DP_TP_STATUS_IDLE_DONE),
1))
if (intel_wait_for_register(dev_priv,DP_TP_STATUS(port),
DP_TP_STATUS_IDLE_DONE,
DP_TP_STATUS_IDLE_DONE,
1))
DRM_ERROR("Timed out waiting for DP idle patterns\n");
}