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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/1467297225-21379-12-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-06-30 15:32:55 +01:00
parent 2c30b43b59
commit 6b18826a9e
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/intel_display.c
View File

@ -1598,7 +1598,9 @@ static void _chv_enable_pll(struct intel_crtc *crtc,
I915_WRITE(DPLL(pipe), pipe_config->dpll_hw_state.dpll);
/* Check PLL is locked */
if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
if (intel_wait_for_register(dev_priv,
DPLL(pipe), DPLL_LOCK_VLV, DPLL_LOCK_VLV,
1))
DRM_ERROR("PLL %d failed to lock\n", pipe);
}