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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/1467297225-21379-13-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-06-30 15:32:56 +01:00
parent 6b18826a9e
commit 370004d38a
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/intel_display.c
View File

@ -1820,7 +1820,9 @@ void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
BUG();
}
if (wait_for((I915_READ(dpll_reg) & port_mask) == expected_mask, 1000))
if (intel_wait_for_register(dev_priv,
dpll_reg, port_mask, expected_mask,
1000))
WARN(1, "timed out waiting for port %c ready: got 0x%x, expected 0x%x\n",
port_name(dport->port), I915_READ(dpll_reg) & port_mask, expected_mask);
}