if (map->flags & ACPI_IORT_ID_SINGLE_MAPPING) {
if (node->type == ACPI_IORT_NODE_NAMED_COMPONENT ||
- node->type == ACPI_IORT_NODE_PCI_ROOT_COMPLEX) {
+ node->type == ACPI_IORT_NODE_PCI_ROOT_COMPLEX ||
+ node->type == ACPI_IORT_NODE_SMMU_V3) {
*id_out = map->output_base;
return parent;
}
return NULL;
}
+#if (ACPI_CA_VERSION > 0x20170929)
+static int iort_get_id_mapping_index(struct acpi_iort_node *node)
+{
+ struct acpi_iort_smmu_v3 *smmu;
+
+ switch (node->type) {
+ case ACPI_IORT_NODE_SMMU_V3:
+ /*
+ * SMMUv3 dev ID mapping index was introduced in revision 1
+ * table, not available in revision 0
+ */
+ if (node->revision < 1)
+ return -EINVAL;
+
+ smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
+ /*
+ * ID mapping index is only ignored if all interrupts are
+ * GSIV based
+ */
+ if (smmu->event_gsiv && smmu->pri_gsiv && smmu->gerr_gsiv
+ && smmu->sync_gsiv)
+ return -EINVAL;
+
+ if (smmu->id_mapping_index >= node->mapping_count) {
+ pr_err(FW_BUG "[node %p type %d] ID mapping index overflows valid mappings\n",
+ node, node->type);
+ return -EINVAL;
+ }
+
+ return smmu->id_mapping_index;
+ default:
+ return -EINVAL;
+ }
+}
+#else
static inline int iort_get_id_mapping_index(struct acpi_iort_node *node)
{
return -EINVAL;
}
+#endif
static struct acpi_iort_node *iort_node_map_id(struct acpi_iort_node *node,
u32 id_in, u32 *id_out,