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path: root/arch/sparc64/kernel/pci_schizo.c
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Diffstat (limited to 'arch/sparc64/kernel/pci_schizo.c')
-rw-r--r--arch/sparc64/kernel/pci_schizo.c57
1 files changed, 3 insertions, 54 deletions
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index cae5b61fe2f..d8c4e0919b4 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);