drm/radeon: remove r600 blit mutex v2

If we don't store local data into global variables
it isn't necessary to lock anything.

v2: rebased on new SA interface

Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index 78309318..05a4e15 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -368,11 +368,14 @@
 int r600_hdmi_buffer_status_changed(struct drm_encoder *encoder);
 void r600_hdmi_update_audio_settings(struct drm_encoder *encoder);
 /* r600 blit */
-int r600_blit_prepare_copy(struct radeon_device *rdev, unsigned num_gpu_pages);
-void r600_blit_done_copy(struct radeon_device *rdev, struct radeon_fence *fence);
+int r600_blit_prepare_copy(struct radeon_device *rdev, unsigned num_gpu_pages,
+			   struct radeon_sa_bo **vb);
+void r600_blit_done_copy(struct radeon_device *rdev, struct radeon_fence *fence,
+			 struct radeon_sa_bo *vb);
 void r600_kms_blit_copy(struct radeon_device *rdev,
 			u64 src_gpu_addr, u64 dst_gpu_addr,
-			unsigned num_gpu_pages);
+			unsigned num_gpu_pages,
+			struct radeon_sa_bo *vb);
 int r600_mc_wait_for_idle(struct radeon_device *rdev);
 
 /*