iommu/omap: announce supported page sizes

Let the IOMMU core know we support 4KiB, 64KiB, 1MiB and 16MiB page sizes.

This way the IOMMU core can split any arbitrary-sized physically
contiguous regions (that it needs to map) as needed.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Hiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

drivers/iommu/omap-iommu.c

@@ -33,6 +33,9 @@
 	     (__i < (n)) && (cr = __iotlb_read_cr((obj), __i), true);	\
 	     __i++)
 
+/* bitmap of the page sizes currently supported */
+#define OMAP_IOMMU_PGSIZES	(SZ_4K | SZ_64K | SZ_1M | SZ_16M)
+
 /**
  * struct omap_iommu_domain - omap iommu domain
  * @pgtable:	the page table
@@ -1207,6 +1210,7 @@ static struct iommu_ops omap_iommu_ops = {
 	.unmap		= omap_iommu_unmap,
 	.iova_to_phys	= omap_iommu_iova_to_phys,
 	.domain_has_cap	= omap_iommu_domain_has_cap,
+	.pgsize_bitmap	= OMAP_IOMMU_PGSIZES,
 };
 
 static int __init omap_iommu_init(void)