- /* Using assumed page size 8K with 128K entries we need 1MB iommu page
- * table (128K ioptes * 8 bytes per iopte). This is
- * page order 7 on UltraSparc.
- */
- tsbbase = __get_free_pages(GFP_KERNEL, get_order(IO_TSB_SIZE));
- if (!tsbbase) {
- prom_printf("PSYCHO_IOMMU: Error, gfp(tsb) failed.\n");
- prom_halt();
- }
- iommu->page_table = (iopte_t *)tsbbase;
- iommu->page_table_sz_bits = 17;
- iommu->page_table_map_base = 0xc0000000;
- iommu->dma_addr_mask = 0xffffffff;
- memset((char *)tsbbase, 0, IO_TSB_SIZE);
-
- /* We start with no consistent mappings. */
- iommu->lowest_consistent_map =
- 1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
-
- for (i = 0; i < PBM_NCLUSTERS; i++) {
- iommu->alloc_info[i].flush = 0;
- iommu->alloc_info[i].next = 0;
- }
-
- psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE, __pa(tsbbase));
+ psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE,
+ __pa(iommu->page_table));