Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: fix page flip finish vs. prepare on plane B
  drm/i915: change default panel fitting mode to preserve aspect ratio
  drm/i915: fix uninitialized variable warning in i915_setup_compression()
  drm/i915: take struct_mutex in i915_dma_cleanup()
  drm/i915: Fix CRT hotplug regression in 2.6.35-rc1
  i915: fix ironlake edp panel setup (v4)
  drm/i915: don't access FW_BLC_SELF on 965G
  drm/i915: Account for space on the ring buffer consumed whilst wrapping.
  drm/i915: gen3 page flipping fixes
  drm/i915: don't queue flips during a flip pending event
  drm/i915: Fix incorrect intel_ring_begin size in BSD ringbuffer.
  drm/i915: Turn on 945 self-refresh only if single CRTC is active
  drm/i915/gen4: Fix interrupt setup ordering
  drm/i915: Use RSEN instead of HTPLG for tfp410 monitor detection.
  drm/i915: Move non-phys cursors into the GTT
  Revert "drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS on)."

(Included the "fix page flip finish vs.  prepare on plane B" patch from
Jesse on top of the pull request from Eric.   -- Linus)

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 cea4f1a8709e..26362f8495a8 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;