drm/amdgpu: link all shadow bo V2

V2:
1. use mutex instead of spinlock for shadow list, since its process could
sleep.
2. move list_del to bo destroy phase.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 21f4b748aff0..76fd2dec7b42 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1550,6 +1550,9 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 	spin_lock_init(&adev->gc_cac_idx_lock);
 	spin_lock_init(&adev->audio_endpt_idx_lock);
 
+	INIT_LIST_HEAD(&adev->shadow_list);
+	mutex_init(&adev->shadow_list_lock);
+
 	adev->rmmio_base = pci_resource_start(adev->pdev, 5);
 	adev->rmmio_size = pci_resource_len(adev->pdev, 5);
 	adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size);