AMDGPU_GMC_HOLE_MASK
va_start = chunk_ib->va_start & AMDGPU_GMC_HOLE_MASK;
args->va_address &= AMDGPU_GMC_HOLE_MASK;
uint64_t csa_addr = amdgpu_csa_vaddr(adev) & AMDGPU_GMC_HOLE_MASK;