iommu/ipmmu-vmsa: Update to {map,unmap}_pages

Update map/unmap to the new multi-page interfaces, which is dead easy
since we just pass them through to io-pgtable anyway. Since these are
domain ops now, the domain is inherently valid (not to mention that
container_of() wouldn't return NULL anyway), so garbage-collect that
check in the process.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/ad859ccc24720d72f8eafd03817c1fc11255ddc1.1668100209.git.robin.murphy@arm.comSigned-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/ipmmu-vmsa.c

@@ -659,22 +659,22 @@ static void ipmmu_detach_device(struct iommu_domain *io_domain,
 }
 
 static int ipmmu_map(struct iommu_domain *io_domain, unsigned long iova,
-		     phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
+		     phys_addr_t paddr, size_t pgsize, size_t pgcount,
+		     int prot, gfp_t gfp, size_t *mapped)
 {
 	struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);
 
-	if (!domain)
-		return -ENODEV;
-
-	return domain->iop->map(domain->iop, iova, paddr, size, prot, gfp);
+	return domain->iop->map_pages(domain->iop, iova, paddr, pgsize, pgcount,
+				      prot, gfp, mapped);
 }
 
 static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova,
-			  size_t size, struct iommu_iotlb_gather *gather)
+			  size_t pgsize, size_t pgcount,
+			  struct iommu_iotlb_gather *gather)
 {
 	struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);
 
-	return domain->iop->unmap(domain->iop, iova, size, gather);
+	return domain->iop->unmap_pages(domain->iop, iova, pgsize, pgcount, gather);
 }
 
 static void ipmmu_flush_iotlb_all(struct iommu_domain *io_domain)
@@ -877,8 +877,8 @@ static const struct iommu_ops ipmmu_ops = {
 	.default_domain_ops = &(const struct iommu_domain_ops) {
 		.attach_dev	= ipmmu_attach_device,
 		.detach_dev	= ipmmu_detach_device,
-		.map		= ipmmu_map,
-		.unmap		= ipmmu_unmap,
+		.map_pages	= ipmmu_map,
+		.unmap_pages	= ipmmu_unmap,
 		.flush_iotlb_all = ipmmu_flush_iotlb_all,
 		.iotlb_sync	= ipmmu_iotlb_sync,
 		.iova_to_phys	= ipmmu_iova_to_phys,