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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/1467297225-21379-29-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-06-30 15:33:12 +01:00
parent 3016a31ffe
commit 27bf23a911
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/i915/intel_dpll_mgr.c
View File

@ -856,7 +856,11 @@ static void skl_ddi_pll_enable(struct drm_i915_private *dev_priv,
I915_WRITE(regs[pll->id].ctl,
I915_READ(regs[pll->id].ctl) | LCPLL_PLL_ENABLE);
if (wait_for(I915_READ(DPLL_STATUS) & DPLL_LOCK(pll->id), 5))
if (intel_wait_for_register(dev_priv,
DPLL_STATUS,
DPLL_LOCK(pll->id),
DPLL_LOCK(pll->id),
5))
DRM_ERROR("DPLL %d not locked\n", pll->id);
}