Commit 403bdd10 authored Aug 07, 2014 by Daniel Vetter

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>

parent 01e184cc

drivers/gpu/drm/i915/intel_ringbuffer.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -476,7 +476,7 @@ static bool stop_ring(struct intel_engine_cs *ring)

		if (!IS_GEN2(ring->dev)) {
		I915_WRITE_MODE(ring, _MASKED_BIT_ENABLE(STOP_RING));
		if (wait_for_atomic((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) {
		if (wait_for((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) {
		DRM_ERROR("%s : timed out trying to stop ring\n", ring->name);
		return false;
		}