592 	struct titan_agp_aperture *aper;  in titan_agp_setup()  local
597 	aper = kmalloc(sizeof(struct titan_agp_aperture), GFP_KERNEL);  in titan_agp_setup()
598 	if (aper == NULL)  in titan_agp_setup()
601 	aper->arena = agp->hose->sg_pci;  in titan_agp_setup()
602 	aper->pg_count = alpha_agpgart_size / PAGE_SIZE;  in titan_agp_setup()
603 	aper->pg_start = iommu_reserve(aper->arena, aper->pg_count,  in titan_agp_setup()
604 				       aper->pg_count - 1);  in titan_agp_setup()
605 	if (aper->pg_start < 0) {  in titan_agp_setup()
607 		kfree(aper);  in titan_agp_setup()
612 		aper->arena->dma_base + aper->pg_start * PAGE_SIZE;  in titan_agp_setup()
613 	agp->aperture.size = aper->pg_count * PAGE_SIZE;  in titan_agp_setup()
614 	agp->aperture.sysdata = aper;  in titan_agp_setup()
622 	struct titan_agp_aperture *aper = agp->aperture.sysdata;  in titan_agp_cleanup()  local
625 	status = iommu_release(aper->arena, aper->pg_start, aper->pg_count);  in titan_agp_cleanup()
629 		iommu_unbind(aper->arena, aper->pg_start, aper->pg_count);  in titan_agp_cleanup()
630 		status = iommu_release(aper->arena, aper->pg_start,   in titan_agp_cleanup()
631 				       aper->pg_count);  in titan_agp_cleanup()
636 	kfree(aper);  in titan_agp_cleanup()
685 	struct titan_agp_aperture *aper = agp->aperture.sysdata;  in titan_agp_bind_memory()  local
686 	return iommu_bind(aper->arena, aper->pg_start + pg_start,   in titan_agp_bind_memory()
693 	struct titan_agp_aperture *aper = agp->aperture.sysdata;  in titan_agp_unbind_memory()  local
694 	return iommu_unbind(aper->arena, aper->pg_start + pg_start,  in titan_agp_unbind_memory()
701 	struct titan_agp_aperture *aper = agp->aperture.sysdata;  in titan_agp_translate()  local
702 	unsigned long baddr = addr - aper->arena->dma_base;  in titan_agp_translate()
711 	pte = aper->arena->ptes[baddr >> PAGE_SHIFT];  in titan_agp_translate()