Merge branch 'drm-next-4.3' of git://people.freedesktop.org/~agd5f/linux into drm-next

amdgpu and radeon changes for 4.3. Highlights:
- Fiji support for amdgpu.
- CGS support for amdgpu.  This is a new driver
  internal cross-component API.
- Initial GPU scheduler for amdgpu.  Still disabled
  by default.
- Lots of bug fixes and optimizations

* 'drm-next-4.3' of git://people.freedesktop.org/~agd5f/linux: (130 commits)
  drm/amdgpu: wait on page directory changes. v2
  drm/amdgpu: Select BACKLIGHT_LCD_SUPPORT
  drm/radeon: Select BACKLIGHT_LCD_SUPPORT
  drm/amdgpu: cleanup sheduler rq handling v2
  drm/amdgpu: move prepare work out of scheduler to cs_ioctl
  drm/amdgpu: fix unnecessary wake up
  drm/amdgpu: fix duplicated mapping invoke bug
  drm/amdgpu: drop bo_list_clone when no scheduler
  drm/amdgpu: disable GPU reset by default
  drm/amdgpu: fix type mismatch error
  drm/amdgpu: add reference for **fence
  drm/amdgpu: fix waiting for all fences before flipping
  drm/amdgpu: fix UVD return code checking
  drm/amdgpu: remove scheduler fence list v2
  drm/amdgpu: remove amd_sched_wait_emit v2
  drm/amdgpu: remove unecessary scheduler fence callbacks
  drm/amdgpu: fix scheduler fence implementation
  drm/amdgpu: don't grab dev->struct_mutex in pm functions
  drm/amdgpu: Don't take dev->struct_mutex in bo_force_delete
  drm/radeon: Don't take dev->struct_mutex in pm functions
  ...

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 855e2196657a..7d442c51063e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -342,6 +342,8 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 		amdgpu_fence_driver_init_ring(ring);
 	}
 
+	init_waitqueue_head(&ring->fence_drv.fence_queue);
+
 	r = amdgpu_wb_get(adev, &ring->rptr_offs);
 	if (r) {
 		dev_err(adev->dev, "(%d) ring rptr_offs wb alloc failed\n", r);
@@ -367,7 +369,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 	}
 	ring->next_rptr_gpu_addr = adev->wb.gpu_addr + (ring->next_rptr_offs * 4);
 	ring->next_rptr_cpu_addr = &adev->wb.wb[ring->next_rptr_offs];
-
+	spin_lock_init(&ring->fence_lock);
 	r = amdgpu_fence_driver_start_ring(ring, irq_src, irq_type);
 	if (r) {
 		dev_err(adev->dev, "failed initializing fences (%d).\n", r);