/* There are several kind of iommu algorithm(tlb, pagetable) among omap series. This interface installs such an iommu algorighm.  */
int install_iommu_arch(const struct iommu_functions *ops)
/* There are several kind of iommu algorithm(tlb, pagetable) among omap series. This interface installs such an iommu algorighm.  */
int install_iommu_arch(const struct iommu_functions *ops)
{
	if (arch_iommu)
		return -EBUSY;
	arch_iommu = ops;
	return 0;
}