drm/amdgpu: separate page table allocation from mapping

This makes it easier to implement a replace operation.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index 2feb9aa3b1f4..ecef35a1fe33 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -75,6 +75,15 @@ int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm)
                 return -ENOMEM;
         }
 
+        r = amdgpu_vm_alloc_pts(adev, bo_va->vm, AMDGPU_CSA_VADDR,
+                                   AMDGPU_CSA_SIZE);
+        if (r) {
+                DRM_ERROR("failed to allocate pts for static CSA, err=%d\n", r);
+                amdgpu_vm_bo_rmv(adev, bo_va);
+                ttm_eu_backoff_reservation(&ticket, &list);
+                return r;
+        }
+
         r = amdgpu_vm_bo_map(adev, bo_va, AMDGPU_CSA_VADDR, 0,AMDGPU_CSA_SIZE,
                                                 AMDGPU_PTE_READABLE | AMDGPU_PTE_WRITEABLE |
                                                 AMDGPU_PTE_EXECUTABLE);