[PATCH 4/7] drm/amdgpu: create shadow bo directly

[Nirmoy Das]

Shadow BOs are only needed by VM code so create it
directly within the vm code.

Signed-off-by: Nirmoy Das <nirmoy.das at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 2c97d67d9cfc..04cabcc3dc3d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -872,6 +872,8 @@ static int amdgpu_vm_pt_create(struct amdgpu_device *adev,
 {
 	struct amdgpu_bo_param bp;
 	struct amdgpu_bo *bo;
+	struct amdgpu_bo *shadow_bo;
+	struct dma_resv *resv;
 	int r;
 
 	memset(&bp, 0, sizeof(bp));
@@ -902,9 +904,19 @@ static int amdgpu_vm_pt_create(struct amdgpu_device *adev,
 	if (!bp.resv)
 		WARN_ON(dma_resv_lock(bo->tbo.base.resv,
 				      NULL));
-	r = amdgpu_bo_create_shadow(adev, bp.size, bo);
+	resv = bp.resv;
+	memset(&bp, 0, sizeof(bp));
+	bp.size = amdgpu_vm_bo_size(adev, level);
+	bp.domain = AMDGPU_GEM_DOMAIN_GTT;
+	bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
+	bp.type = ttm_bo_type_kernel;
+	bp.resv = bo->tbo.base.resv;
+	bp.bo_ptr_size = sizeof(struct amdgpu_bo);
 
-	if (!bp.resv)
+	r = amdgpu_bo_create(adev, &bp, &shadow_bo);
+
+
+	if (!resv)
 		dma_resv_unlock(bo->tbo.base.resv);
 
 	if (r) {
@@ -912,6 +924,12 @@ static int amdgpu_vm_pt_create(struct amdgpu_device *adev,
 		return r;
 	}
 
+	shadow_bo->parent = amdgpu_bo_ref(bo);
+	mutex_lock(&adev->shadow_list_lock);
+	list_add_tail(&shadow_bo->shadow_list, &adev->shadow_list);
+	mutex_unlock(&adev->shadow_list_lock);
+	bo->shadow = shadow_bo;
+
 	return 0;
 }
 
-- 
2.31.1