[SPARC64]: Consolidate common PCI IOMMU init code.

All the PCI controller drivers were doing the same thing
setting up the IOMMU software state, put it all in one spot.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 54 deletions

diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index cae5b61fe2f0..d8c4e0919b4e 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -1765,7 +1765,7 @@ static void schizo_pbm_strbuf_init(struct pci_pbm_info *pbm)
 static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
 {
         struct pci_iommu *iommu = pbm->iommu;
-        unsigned long tsbbase, i, tagbase, database, order;
+        unsigned long i, tagbase, database;
         u32 vdma[2], dma_mask;
         u64 control;
         int err, tsbsize;
@@ -1800,10 +1800,6 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
                         prom_halt();
         };
 
-        /* Setup initial software IOMMU state. */
-        spin_lock_init(&iommu->lock);
-        iommu->ctx_lowest_free = 1;
-
         /* Register addresses, SCHIZO has iommu ctx flushing. */
         iommu->iommu_control  = pbm->pbm_regs + SCHIZO_IOMMU_CONTROL;
         iommu->iommu_tsbbase  = pbm->pbm_regs + SCHIZO_IOMMU_TSBBASE;
@@ -1832,56 +1828,9 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
         /* Leave diag mode enabled for full-flushing done
          * in pci_iommu.c
          */
+        pci_iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask);
 
-        iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
-        if (!iommu->dummy_page) {
-                prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
-                prom_halt();
-        }
-        memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
-        iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
-
-        /* 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.
-         */
-        order = get_order(tsbsize * 8 * 1024);
-        tsbbase = __get_free_pages(GFP_KERNEL, order);
-        if (!tsbbase) {
-                prom_printf("%s: Error, gfp(tsb) failed.\n", pbm->name);
-                prom_halt();
-        }
-
-        iommu->page_table = (iopte_t *)tsbbase;
-        iommu->page_table_map_base = vdma[0];
-        iommu->dma_addr_mask = dma_mask;
-        pci_iommu_table_init(iommu, PAGE_SIZE << order);
-
-        switch (tsbsize) {
-        case 64:
-                iommu->page_table_sz_bits = 16;
-                break;
-
-        case 128:
-                iommu->page_table_sz_bits = 17;
-                break;
-
-        default:
-                prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
-                prom_halt();
-                break;
-        };
-
-        /* 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;
-        }
-
-        schizo_write(iommu->iommu_tsbbase, __pa(tsbbase));
+        schizo_write(iommu->iommu_tsbbase, __pa(iommu->page_table));
 
         control = schizo_read(iommu->iommu_control);
         control &= ~(SCHIZO_IOMMU_CTRL_TSBSZ | SCHIZO_IOMMU_CTRL_TBWSZ);