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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/1467297225-21379-43-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-06-30 15:33:26 +01:00
parent 7cf41c3d0e
commit eb0241c14e
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/i915/intel_psr.c
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@ -501,8 +501,11 @@ static void vlv_psr_disable(struct intel_dp *intel_dp)
if (dev_priv->psr.active) {
/* Put VLV PSR back to PSR_state 0 that is PSR Disabled. */
if (wait_for((I915_READ(VLV_PSRSTAT(intel_crtc->pipe)) &
VLV_EDP_PSR_IN_TRANS) == 0, 1))
if (intel_wait_for_register(dev_priv,
VLV_PSRSTAT(intel_crtc->pipe),
VLV_EDP_PSR_IN_TRANS,
0,
1))
WARN(1, "PSR transition took longer than expected\n");
val = I915_READ(VLV_PSRCTL(intel_crtc->pipe));