sparc/kernel/pci_sun4v.c

21 #include <asm/iommu-common.h>
23 #include <asm/iommu.h>
78 static inline bool iommu_use_atu(struct iommu *iommu, u64 mask)
80 	return iommu->atu && mask > DMA_BIT_MASK(32);
102 		if (!iommu_use_atu(pbm->iommu, mask)) {
119 			iotsb_num = pbm->iommu->atu->iotsb->iotsb_num;
188 	struct iommu *iommu;
213 	iommu = dev->archdata.iommu;
215 	if (!iommu_use_atu(iommu, mask))
216 		tbl = &iommu->tbl;
218 		tbl = &iommu->atu->tbl;
327 	struct iommu *iommu;
335 	iommu = dev->archdata.iommu;
337 	atu = iommu->atu;
340 	if (!iommu_use_atu(iommu, dvma)) {
341 		tbl = &iommu->tbl;
342 		iotsb_num = 0; /* we don't care for legacy iommu */
360 	struct iommu *iommu;
370 	iommu = dev->archdata.iommu;
371 	atu = iommu->atu;
381 	if (!iommu_use_atu(iommu, mask))
382 		tbl = &iommu->tbl;
434 	struct iommu *iommu;
448 	iommu = dev->archdata.iommu;
450 	atu = iommu->atu;
458 		iotsb_num = 0; /* we don't care for legacy iommu */
459 		tbl = &iommu->tbl;
479 	struct iommu *iommu;
488 	iommu = dev->archdata.iommu;
489 	if (nelems == 0 || !iommu)
491 	atu = iommu->atu;
516 	if (!iommu_use_atu(iommu, mask))
517 		tbl = &iommu->tbl;
532 		/* Allocate iommu entries for that segment */
540 			pr_err_ratelimited("iommu_alloc failed, iommu %p paddr %lx npages %lx\n",
630 	struct iommu *iommu;
638 	iommu = dev->archdata.iommu;
640 	atu = iommu->atu;
658 			iotsb_num = 0; /* we don't care for legacy iommu */
659 			tbl = &iommu->tbl;
677 	struct iommu *iommu = dev->archdata.iommu;
681 	if (device_mask < iommu->dma_addr_mask)
710 					    struct iommu_map_table *iommu)
717 	for (pool_nr = 0; pool_nr < iommu->nr_pools; pool_nr++) {
718 		pool = &(iommu->pools[pool_nr]);
732 					__set_bit(i, iommu->map);
742 	struct atu *atu = pbm->iommu->atu;
803 	struct atu *atu = pbm->iommu->atu;
811 	ranges = of_get_property(pbm->op->dev.of_node, "iommu-address-ranges",
814 		pr_err(PFX "No iommu-address-ranges\n");
818 	page_size = of_get_property(pbm->op->dev.of_node, "iommu-pagesizes",
821 		pr_err(PFX "No iommu-pagesizes\n");
825 	/* There are 4 iommu-address-ranges supported. Each range is pair of
846 	/* Create ATU iommu map.
869 	struct iommu *iommu = pbm->iommu;
890 	spin_lock_init(&iommu->lock);
891 	iommu->ctx_lowest_free = 1;
892 	iommu->tbl.table_map_base = dma_offset;
893 	iommu->dma_addr_mask = dma_mask;
898 	iommu->tbl.map = kzalloc(sz, GFP_KERNEL);
899 	if (!iommu->tbl.map) {
903 	iommu_tbl_pool_init(&iommu->tbl, num_tsb_entries, IO_PAGE_SHIFT,
907 	sz = probe_existing_entries(pbm, &iommu->tbl);
1204 	 * we can still continue using legacy iommu.
1206 	if (pbm->iommu->atu) {
1209 			kfree(pbm->iommu->atu);
1210 			pbm->iommu->atu = NULL;
1227 	struct iommu *iommu;
1294 	iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL);
1295 	if (!iommu) {
1296 		printk(KERN_ERR PFX "Could not allocate pbm iommu\n");
1300 	pbm->iommu = iommu;
1301 	iommu->atu = NULL;
1307 			iommu->atu = atu;
1319 	kfree(iommu->atu);
1320 	kfree(pbm->iommu);