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path: root/drivers/gpu/drm/i915/intel_ringbuffer.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index cea4f1a8709..26362f8495a 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -94,7 +94,7 @@ render_ring_flush(struct drm_device *dev,
#if WATCH_EXEC
DRM_INFO("%s: queue flush %08x to ring\n", __func__, cmd);
#endif
- intel_ring_begin(dev, ring, 8);
+ intel_ring_begin(dev, ring, 2);
intel_ring_emit(dev, ring, cmd);
intel_ring_emit(dev, ring, MI_NOOP);
intel_ring_advance(dev, ring);
@@ -358,7 +358,7 @@ bsd_ring_flush(struct drm_device *dev,
u32 invalidate_domains,
u32 flush_domains)
{
- intel_ring_begin(dev, ring, 8);
+ intel_ring_begin(dev, ring, 2);
intel_ring_emit(dev, ring, MI_FLUSH);
intel_ring_emit(dev, ring, MI_NOOP);
intel_ring_advance(dev, ring);
@@ -687,6 +687,7 @@ int intel_wrap_ring_buffer(struct drm_device *dev,
*virt++ = MI_NOOP;
ring->tail = 0;
+ ring->space = ring->head - 8;
return 0;
}
@@ -721,8 +722,9 @@ int intel_wait_ring_buffer(struct drm_device *dev,
}
void intel_ring_begin(struct drm_device *dev,
- struct intel_ring_buffer *ring, int n)
+ struct intel_ring_buffer *ring, int num_dwords)
{
+ int n = 4*num_dwords;
if (unlikely(ring->tail + n > ring->size))
intel_wrap_ring_buffer(dev, ring);
if (unlikely(ring->space < n))
@@ -752,7 +754,7 @@ void intel_fill_struct(struct drm_device *dev,
{
unsigned int *virt = ring->virtual_start + ring->tail;
BUG_ON((len&~(4-1)) != 0);
- intel_ring_begin(dev, ring, len);
+ intel_ring_begin(dev, ring, len/4);
memcpy(virt, data, len);
ring->tail += len;
ring->tail &= ring->size - 1;