From 3d808eb1711f2431fe6ab9f912b2ff795bb74013 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 30 Jun 2016 15:33:30 +0100 Subject: [PATCH] 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 Reviewed-by: Tvrtko Ursulin Link: http://patchwork.freedesktop.org/patch/msgid/1467297225-21379-47-git-send-email-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/intel_ringbuffer.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 7ef3e68c8fd6..05018243aaef 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -529,7 +529,11 @@ static bool stop_ring(struct intel_engine_cs *engine) if (!IS_GEN2(dev_priv)) { I915_WRITE_MODE(engine, _MASKED_BIT_ENABLE(STOP_RING)); - if (wait_for((I915_READ_MODE(engine) & MODE_IDLE) != 0, 1000)) { + if (intel_wait_for_register(dev_priv, + RING_MI_MODE(engine->mmio_base), + MODE_IDLE, + MODE_IDLE, + 1000)) { DRM_ERROR("%s : timed out trying to stop ring\n", engine->name); /* Sometimes we observe that the idle flag is not -- 2.20.1