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Message-ID: <1953107.CQOukoFCf9@rafael.j.wysocki>
Date: Wed, 14 Jan 2026 13:29:05 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Linux ACPI <linux-acpi@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
"Dumbre, Saket" <saket.dumbre@...el.com>
Subject: [PATCH v1 14/26] ACPICA: Add GICv5 MADT structures
From: Jose Marinho <jose.marinho@....com>
The GICv5 adds the following MADT structures:
- IRS
- ITS Config Frame
- ITS Translate Frame
The ACPI spec ECR is at https://github.com/tianocore/edk2/issues/11148
Link: https://github.com/acpica/acpica/commit/69cca52ddf04
Signed-off-by: Jose Marinho <jose.marinho@....com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
include/acpi/actbl2.h | 49 +++++++++++++++++++++++++++++++++++++++----
1 file changed, 45 insertions(+), 4 deletions(-)
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 15856ae8b1e1..05ce897f1eeb 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -1294,7 +1294,10 @@ enum acpi_madt_type {
ACPI_MADT_TYPE_IMSIC = 25,
ACPI_MADT_TYPE_APLIC = 26,
ACPI_MADT_TYPE_PLIC = 27,
- ACPI_MADT_TYPE_RESERVED = 28, /* 28 to 0x7F are reserved */
+ ACPI_MADT_TYPE_GICV5_IRS = 28,
+ ACPI_MADT_TYPE_GICV5_ITS = 29,
+ ACPI_MADT_TYPE_GICV5_ITS_TRANSLATE = 30,
+ ACPI_MADT_TYPE_RESERVED = 31, /* 31 to 0x7F are reserved */
ACPI_MADT_TYPE_OEM_RESERVED = 0x80 /* 0x80 to 0xFF are reserved for OEM use */
};
@@ -1416,7 +1419,7 @@ struct acpi_madt_local_x2apic_nmi {
u8 reserved[3]; /* reserved - must be zero */
};
-/* 11: Generic interrupt - GICC (ACPI 5.0 + ACPI 6.0 + ACPI 6.3 + ACPI 6.5 changes) */
+/* 11: Generic interrupt - GICC (ACPI 5.0 + ACPI 6.0 + ACPI 6.3 + ACPI 6.5 + ACPI 6.7 changes) */
struct acpi_madt_generic_interrupt {
struct acpi_subtable_header header;
@@ -1437,6 +1440,8 @@ struct acpi_madt_generic_interrupt {
u8 reserved2[1];
u16 spe_interrupt; /* ACPI 6.3 */
u16 trbe_interrupt; /* ACPI 6.5 */
+ u16 iaffid; /* ACPI 6.7 */
+ u32 irs_id;
};
/* Masks for Flags field above */
@@ -1459,7 +1464,7 @@ struct acpi_madt_generic_distributor {
u8 reserved2[3]; /* reserved - must be zero */
};
-/* Values for Version field above */
+/* Values for Version field above and Version field in acpi_madt_gicv5_irs */
enum acpi_madt_gic_version {
ACPI_MADT_GIC_VERSION_NONE = 0,
@@ -1467,7 +1472,8 @@ enum acpi_madt_gic_version {
ACPI_MADT_GIC_VERSION_V2 = 2,
ACPI_MADT_GIC_VERSION_V3 = 3,
ACPI_MADT_GIC_VERSION_V4 = 4,
- ACPI_MADT_GIC_VERSION_RESERVED = 5 /* 5 and greater are reserved */
+ ACPI_MADT_GIC_VERSION_V5 = 5,
+ ACPI_MADT_GIC_VERSION_RESERVED = 6 /* 6 and greater are reserved */
};
/* 13: Generic MSI Frame (ACPI 5.1) */
@@ -1738,6 +1744,41 @@ struct acpi_madt_plic {
u32 gsi_base;
};
+/* 28: Arm GICv5 IRS (ACPI 6.7) */
+struct acpi_madt_gicv5_irs {
+ struct acpi_subtable_header header;
+ u8 version;
+ u8 reserved;
+ u32 irs_id;
+ u32 flags;
+ u32 reserved2;
+ u64 config_base_address;
+ u64 setlpi_base_address;
+};
+
+#define ACPI_MADT_IRS_NON_COHERENT (1)
+
+/* 29: Arm GICv5 ITS Config Frame (ACPI 6.7) */
+struct acpi_madt_gicv5_translator {
+ struct acpi_subtable_header header;
+ u8 flags;
+ u8 reserved; /* reserved - must be zero */
+ u32 translator_id;
+ u64 base_address;
+};
+
+#define ACPI_MADT_GICV5_ITS_NON_COHERENT (1)
+
+/* 30: Arm GICv5 ITS Translate Frame (ACPI 6.7) */
+struct acpi_madt_gicv5_translate_frame {
+ struct acpi_subtable_header header;
+ u16 reserved; /* reserved - must be zero */
+ u32 linked_translator_id;
+ u32 translate_frame_id;
+ u32 reserved2;
+ u64 base_address;
+};
+
/* 80: OEM data */
struct acpi_madt_oem_data {
--
2.51.0
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