[PATCH v2 1/7] ACPICA: Add GICv5 MADT structures
From: Lorenzo Pieralisi <lpieralisi@kernel.org>
Date: 2025-12-18 10:15:09
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 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/69cca52d Signed-off-by: Jose Marinho <redacted> Signed-off-by: Bob Moore <redacted> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> --- 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 f726bce3eb84..fdabc6c64a9c 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h@@ -1167,7 +1167,10 @@ 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 */ };
@@ -1289,7 +1292,7 @@ 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;
@@ -1310,6 +1313,8 @@ 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 */
@@ -1332,7 +1337,7 @@ 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,
@@ -1340,7 +1345,8 @@ 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) */
@@ -1611,6 +1617,41 @@ 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 {
--
2.50.1