[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, 5 insertions, 39 deletions

diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index 6ed1ef25e0ac..c03ed5f49d31 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -1207,13 +1207,9 @@ static void psycho_scan_bus(struct pci_controller_info *p)
 static void psycho_iommu_init(struct pci_controller_info *p)
 {
         struct pci_iommu *iommu = p->pbm_A.iommu;
-        unsigned long tsbbase, i;
+        unsigned long i;
         u64 control;
 
-        /* Setup initial software IOMMU state. */
-        spin_lock_init(&iommu->lock);
-        iommu->ctx_lowest_free = 1;
-
         /* Register addresses. */
         iommu->iommu_control  = p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL;
         iommu->iommu_tsbbase  = p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE;
@@ -1240,40 +1236,10 @@ static void psycho_iommu_init(struct pci_controller_info *p)
         /* Leave diag mode enabled for full-flushing done
          * in pci_iommu.c
          */
+        pci_iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff);
 
-        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.
-         */
-        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;
-        pci_iommu_table_init(iommu, 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));
 
         control = psycho_read(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL);
         control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
@@ -1281,7 +1247,7 @@ static void psycho_iommu_init(struct pci_controller_info *p)
         psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL, control);
 
         /* If necessary, hook us up for starfire IRQ translations. */
-        if(this_is_starfire)
+        if (this_is_starfire)
                 p->starfire_cookie = starfire_hookup(p->pbm_A.portid);
         else
                 p->starfire_cookie = NULL;