From 9d3deddc4a8f12b9493858a529570e77f8362ad1 Mon Sep 17 00:00:00 2001 From: Haihao Xiang Date: Fri, 12 Jan 2007 11:24:14 -0800 Subject: Delay for a usec while spinning waiting for ring buffer space. This means the loop will wait up to ~10ms for ring buffer space to become available, rather than just however long it takes to check the space 10000 times. This matches other drivers' behavior when waiting for ring buffer/fifo space. --- shared-core/i915_dma.c | 1 + 1 file changed, 1 insertion(+) (limited to 'shared-core') diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c index 943a1772..912fe0b1 100644 --- a/shared-core/i915_dma.c +++ b/shared-core/i915_dma.c @@ -63,6 +63,7 @@ int i915_wait_ring(drm_device_t * dev, int n, const char *caller) i = 0; last_head = ring->head; + DRM_UDELAY(1); } return DRM_ERR(EBUSY); -- cgit v1.2.3