drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register()
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 30 Jun 2016 14:32:52 +0000 (15:32 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Thu, 30 Jun 2016 14:42:03 +0000 (15:42 +0100)
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/1467297225-21379-9-git-send-email-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/intel_ddi.c

index ad3b0ee5e55b4073aadf946ab04ff0319c6e2ce9..6bcd7ffbff43f9ae7f68f0e723914b654a841c02 100644 (file)
@@ -1808,7 +1808,10 @@ static u32 bxt_get_grc(struct drm_i915_private *dev_priv, enum dpio_phy phy)
 static void bxt_phy_wait_grc_done(struct drm_i915_private *dev_priv,
                                  enum dpio_phy phy)
 {
-       if (wait_for(I915_READ(BXT_PORT_REF_DW3(phy)) & GRC_DONE, 10))
+       if (intel_wait_for_register(dev_priv,
+                                   BXT_PORT_REF_DW3(phy),
+                                   GRC_DONE, GRC_DONE,
+                                   10))
                DRM_ERROR("timeout waiting for PHY%d GRC\n", phy);
 }