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Merge branch 'drm-intel-fixes' into drm-intel-next

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This commit is contained in:
Chris Wilson
2010-12-09 20:22:04 +00:00
parent 8fd2685911 63abf3edaf
commit 8d5203ca62
168 changed files with 1892 additions and 924 deletions
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19
drivers/gpu/drm/i915/intel_ringbuffer.c
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@@ -696,20 +696,17 @@ int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n)
unsigned long end;
u32 head;
head = intel_read_status_page(ring, 4);
if (head) {
ring->head = head & HEAD_ADDR;
ring->space = ring->head - (ring->tail + 8);
if (ring->space < 0)
ring->space += ring->size;
if (ring->space >= n)
return 0;
}
trace_i915_ring_wait_begin (dev);
end = jiffies + 3 * HZ;
do {
ring->head = I915_READ_HEAD(ring) & HEAD_ADDR;
/* If the reported head position has wrapped or hasn't advanced,
* fallback to the slow and accurate path.
*/
head = intel_read_status_page(ring, 4);
if (head < ring->actual_head)
head = I915_READ_HEAD(ring);
ring->actual_head = head;
ring->head = head & HEAD_ADDR;
ring->space = ring->head - (ring->tail + 8);
if (ring->space < 0)
ring->space += ring->size;