kfd_iommu_check_device 1212 drivers/gpu/drm/amd/amdkfd/kfd_crat.c 	if (!kfd_iommu_check_device(kdev))
kfd_iommu_check_device   30 drivers/gpu/drm/amd/amdkfd/kfd_iommu.h int kfd_iommu_check_device(struct kfd_dev *kfd);