Add the IORT structure for named components. These give us the stream ids

used towards an smmu(4) for non-PCI devices.  The references are provided
as ASCII printable paths.

ok kettenis@

diff --git a/sys/dev/acpi/acpireg.h b/sys/dev/acpi/acpireg.h
index 821fb8e..0c80c31 100644 (file)
--- a/sys/dev/acpi/acpireg.h
+++ b/sys/dev/acpi/acpireg.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: acpireg.h,v 1.53 2021/03/10 12:49:24 patrick Exp $    */
+/*     $OpenBSD: acpireg.h,v 1.54 2021/03/15 22:40:23 patrick Exp $    */
 /*
  * Copyright (c) 2005 Thorsten Lockert <tholo@sigmasoft.com>
  * Copyright (c) 2005 Marco Peereboom <marco@openbsd.org>
@@ -696,10 +696,11 @@ struct acpi_iort {
 
 struct acpi_iort_node {
        uint8_t         type;
-#define ACPI_IORT_ITS          0
-#define ACPI_IORT_ROOT_COMPLEX 2
-#define ACPI_IORT_SMMU         3
-#define ACPI_IORT_SMMU_V3      4
+#define ACPI_IORT_ITS                  0
+#define ACPI_IORT_NAMED_COMPONENT      1
+#define ACPI_IORT_ROOT_COMPLEX         2
+#define ACPI_IORT_SMMU                 3
+#define ACPI_IORT_SMMU_V3              4
        uint16_t        length;
        uint8_t         revision;
        uint32_t        reserved1;
@@ -707,6 +708,13 @@ struct acpi_iort_node {
        uint32_t        mapping_offset;
 } __packed;
 
+struct acpi_iort_nc_node {
+       uint32_t        node_flags;
+       uint64_t        memory_access_properties;
+       uint8_t         device_memory_address_size_limit;
+       char            device_object_name[];
+} __packed;
+
 struct acpi_iort_rc_node {
        uint64_t        memory_access_properties;
        uint32_t        ats_attributes;