linux-kernel - [PATCH v2 1/2] ACPICA: ACPI 6.2: Add support for new SRAT subtable

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Message-Id: <1497942437-1390-2-git-send-email-ganapatrao.kulkarni@cavium.com>
Date:   Tue, 20 Jun 2017 12:37:16 +0530
From:   Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>
To:     linux-acpi@...r.kernel.org, devel@...ica.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     lv.zheng@...el.com, robert.moore@...el.com, marc.zyngier@....com,
        catalin.marinas@....com, will.deacon@....com,
        lorenzo.pieralisi@....com, hanjun.guo@...aro.org,
        tglx@...utronix.de, jason@...edaemon.net, jnair@...iumnetworks.com,
        gpkulkarni@...il.com
Subject: [PATCH v2 1/2] ACPICA: ACPI 6.2: Add support for new SRAT subtable

Add GIC ITS Affinity (ACPI 6.2) subtable to SRAT table.

ACPICA commit 5bc67f63918da249bfe279ee461d152bb3e6f55b
Link: https://github.com/acpica/acpica/commit/5bc67f6

Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>
---
 include/acpi/actbl1.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index b4ce55c..253c9db 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -1192,7 +1192,8 @@ enum acpi_srat_type {
 	ACPI_SRAT_TYPE_MEMORY_AFFINITY = 1,
 	ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY = 2,
 	ACPI_SRAT_TYPE_GICC_AFFINITY = 3,
-	ACPI_SRAT_TYPE_RESERVED = 4	/* 4 and greater are reserved */
+	ACPI_SRAT_TYPE_GIC_ITS_AFFINITY = 4,	/* ACPI 6.2 */
+	ACPI_SRAT_TYPE_RESERVED = 5	/* 5 and greater are reserved */
 };
 
 /*
@@ -1260,6 +1261,15 @@ struct acpi_srat_gicc_affinity {
 	u32 clock_domain;
 };
 
+/* 4: GIC ITS Affinity (ACPI 6.2) */
+
+struct acpi_srat_its_affinity {
+	struct acpi_subtable_header header;
+	u32 proximity_domain;
+	u16 reserved;
+	u32 its_id;
+};
+
 /* Flags for struct acpi_srat_gicc_affinity */
 
 #define ACPI_SRAT_GICC_ENABLED     (1)	/* 00: Use affinity structure */
-- 
1.8.1.4