ACPICA: Add Arm IORT IWB node definitions

The IORT IUWB node is defined in IORT issue E.g
See https://developer.arm.com/documentation/den0049/eg

Link: https://github.com/acpica/acpica/commit/a90dc2f5380c
Signed-off-by: Jose Marinho <jose.marinho@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2691130.Lt9SDvczpP@rafael.j.wysocki

diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 05ce897f1eeb4ffb17c2bb882bf98068fde3b0db..01dc35e4b60ad7497981de4c201d63cad9a3fdcd 100644 (file)
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -682,6 +682,7 @@ enum acpi_iort_node_type {
        ACPI_IORT_NODE_SMMU_V3 = 0x04,
        ACPI_IORT_NODE_PMCG = 0x05,
        ACPI_IORT_NODE_RMR = 0x06,
+       ACPI_IORT_NODE_IWB = 0x07,
 };
 
 struct acpi_iort_id_mapping {
@@ -860,6 +861,12 @@ struct acpi_iort_rmr_desc {
        u32 reserved;
 };
 
+struct acpi_iort_iwb {
+       u64 base_address;
+       u16 iwb_index;          /* Unique IWB identifier matching with the IWB GSI namespace. */
+       char device_name[];     /* Path of the IWB namespace object */
+};
+
 /*******************************************************************************
  *
  * IOVT - I/O Virtualization Table