On 04/19/2017 10:07 PM, Christian König wrote:
From: Christian König <christian.koe...@amd.com>

Use amdgpu_vm_bo_update_mapping() instead of amdgpu_vm_bo_split_mapping() here.

We don't want any flags set in the cleared areas and splitting
should be unnecessary.

Yeah, the mappings in the freed list are split already, I think.


Signed-off-by: Christian König <christian.koe...@amd.com>
---
  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 9017b51..27af436 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1631,8 +1631,9 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
                        struct amdgpu_bo_va_mapping, list);
                list_del(&mapping->list);

-               r = amdgpu_vm_bo_split_mapping(adev, NULL, 0, NULL, vm, mapping,
-                                              0, 0, &f);
+               r = amdgpu_vm_bo_update_mapping(adev, NULL, 0, NULL, vm,
+                                               mapping->start, mapping->last,
+                                               0, 0, &f);

We may also pass the offset for updating.
+               r = amdgpu_vm_bo_update_mapping(adev, NULL, 0, NULL, vm,
+                                               mapping->start, mapping->last,
+                                               0, mapping->offset, &f);

Jerry

                amdgpu_vm_free_mapping(adev, vm, mapping, f);
                if (r) {
                        fence_put(f);

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