From: Keith Packard <keithp@keithp.com>
Date: Mon, 12 May 2008 20:03:16 +0000 (-0700)
Subject: [intel] When polling for ring space, sleep for a lot longer (10ms)
X-Git-Tag: submit/1.0/20121108.012404~757^2~128
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7e7ea313c4a38370194290d05697bdb6a746669d;p=profile%2Fivi%2Flibdrm.git

[intel] When polling for ring space, sleep for a lot longer (10ms)

If the ring is full, the engine will surely be running for more than 10ms.
---

diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c
index 24f361e..cf2dfeb 100644
--- a/shared-core/i915_dma.c
+++ b/shared-core/i915_dma.c
@@ -63,7 +63,7 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
 
 		last_head = ring->head;
 		last_acthd = acthd;
-		DRM_UDELAY(10);
+		msleep_interruptible (10);
 	}
 
 	return -EBUSY;