[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>
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index 6ed1ef2..c03ed5f 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -1207,13 +1207,9 @@
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 @@
/* 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 @@
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;