drm/i915: No busy-loop wait_for in the ring init code
Doing a 1s wait (tops) with the cpu is a bit excessive. Tune it down like everything else in that code. v2: Also insert the missing space Chris spotted. Cc: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -476,8 +476,8 @@ static bool stop_ring(struct intel_engine_cs *ring)
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if (!IS_GEN2(ring->dev)) {
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I915_WRITE_MODE(ring, _MASKED_BIT_ENABLE(STOP_RING));
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if (wait_for_atomic((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) {
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DRM_ERROR("%s :timed out trying to stop ring\n", ring->name);
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if (wait_for((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) {
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DRM_ERROR("%s : timed out trying to stop ring\n", ring->name);
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return false;
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}
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}
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