[PATCH v2 2/7] ACPICA: Add Arm IORT IWB node definitions
From: Lorenzo Pieralisi <lpieralisi@kernel.org>
Date: 2025-12-18 10:15:14
Also in:
linux-acpi, linux-pci, lkml
Subsystem:
acpi, acpi component architecture (acpica), the rest · Maintainers:
"Rafael J. Wysocki", Saket Dumbre, Linus Torvalds
From: Jose Marinho <redacted> 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/a90dc2f5 Signed-off-by: Jose Marinho <redacted> Signed-off-by: Bob Moore <redacted> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> --- include/acpi/actbl2.h | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index fdabc6c64a9c..ba1a36d23e32 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h@@ -680,6 +680,7 @@ 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 {
@@ -858,6 +859,12 @@ 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 */ +}; + /******************************************************************************* * * IVRS - I/O Virtualization Reporting Structure
--
2.50.1