drivers/iommu/omap-iommu.c

468 static void iopte_free(struct omap_iommu *obj, u32 *iopte, bool dma_valid)
472 	/* Note: freed iopte's must be clean ready for re-use */
473 	if (iopte) {
475 			pt_dma = virt_to_phys(iopte);
480 		kmem_cache_free(iopte_cachep, iopte);
487 	u32 *iopte;
498 	iopte = kmem_cache_zalloc(iopte_cachep, GFP_KERNEL);
502 		if (!iopte)
505 		*pt_dma = dma_map_single(obj->dev, iopte, IOPTE_TABLE_SIZE,
509 			iopte_free(obj, iopte, false);
517 		if (WARN_ON(*pt_dma != virt_to_phys(iopte))) {
521 			iopte_free(obj, iopte, false);
525 		*iopgd = virt_to_phys(iopte) | IOPGD_TABLE;
528 		dev_vdbg(obj->dev, "%s: a new pte:%p\n", __func__, iopte);
531 		iopte_free(obj, iopte, false);
535 	iopte = iopte_offset(iopgd, da);
539 		 __func__, da, iopgd, *iopgd, iopte, *iopte);
541 	return iopte;
582 	u32 *iopte = iopte_alloc(obj, iopgd, &pt_dma, da);
585 	if (IS_ERR(iopte))
586 		return PTR_ERR(iopte);
588 	*iopte = (pa & IOPAGE_MASK) | prot | IOPTE_SMALL;
592 		 __func__, da, pa, iopte, *iopte);
601 	u32 *iopte = iopte_alloc(obj, iopgd, &pt_dma, da);
611 	if (IS_ERR(iopte))
612 		return PTR_ERR(iopte);
615 		*(iopte + i) = (pa & IOLARGE_MASK) | prot | IOPTE_LARGE;
687 	u32 *iopgd, *iopte = NULL;
694 		iopte = iopte_offset(iopgd, da);
697 	*ppte = iopte;
714 		u32 *iopte = iopte_offset(iopgd, da);
717 		if (*iopte & IOPTE_LARGE) {
720 			iopte = iopte_offset(iopgd, (da & IOLARGE_MASK));
723 		memset(iopte, 0, nent * sizeof(*iopte));
730 		iopte = iopte_offset(iopgd, 0);
732 			if (iopte[i])
735 		iopte_free(obj, iopte, true);
807 	u32 *iopgd, *iopte;
833 	iopte = iopte_offset(iopgd, da);
836 		obj->name, errs, da, iopgd, *iopgd, iopte, *iopte);