From: Mukul Joshi <[email protected]> Add a ualink handle to the amdgpu_bo struct. The ualink handle is a 128-bit unique identifier associated with a BO and is shared across the network to facilitate NPA based memory sharing across GPUs in a rack scale setup. We are only storing the low 64 bits of that handle in the BO struct as that is gauranteed to be unique.
Signed-off-by: Mukul Joshi <[email protected]> Reviewed-by: Felix Kuehling <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h index b41767c7913ac..2e6a8e6f577a7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h @@ -125,6 +125,9 @@ struct amdgpu_bo { * for memory accounting. */ int8_t xcp_id; + + /* UALink Handle low 64 bits*/ + u64 ualink_handle_lo; }; struct amdgpu_bo_user { -- 2.55.0
