/* Get the leaf page size */
tg = __ffs(smmu_domain->domain.pgsize_bitmap);
+ num_pages = size >> tg;
+
/* Convert page size of 12,14,16 (log2) to 1,2,3 */
cmd->tlbi.tg = (tg - 10) / 2;
/*
- * Determine what level the granule is at. For non-leaf, io-pgtable
- * assumes .tlb_flush_walk can invalidate multiple levels at once,
- * so ignore the nominal last-level granule and leave TTL=0.
+ * Determine what level the granule is at. For non-leaf, both
+ * io-pgtable and SVA pass a nominal last-level granule because
+ * they don't know what level(s) actually apply, so ignore that
+ * and leave TTL=0. However for various errata reasons we still
+ * want to use a range command, so avoid the SVA corner case
+ * where both scale and num could be 0 as well.
*/
if (cmd->tlbi.leaf)
cmd->tlbi.ttl = 4 - ((ilog2(granule) - 3) / (tg - 3));
-
- num_pages = size >> tg;
+ else if ((num_pages & CMDQ_TLBI_RANGE_NUM_MAX) == 1)
+ num_pages++;
}
cmds.num = 0;