linux-kernel - [PATCH v3 1/2] acpica: iort: Update SMMUv3 header for proximity domain mapping

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Message-Id: <1496897059-8272-2-git-send-email-ganapatrao.kulkarni@cavium.com>
Date:   Thu,  8 Jun 2017 10:14:18 +0530
From:   Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-acpi@...r.kernel.org, iommu@...ts.linux-foundation.org
Cc:     Will.Deacon@....com, lorenzo.pieralisi@....com,
        hanjun.guo@...aro.org, sudeep.holla@....com, robin.murphy@....com,
        lv.zheng@...el.com, joro@...tes.org, rjw@...ysocki.net,
        lenb@...nel.org, jnair@...iumnetworks.com, gpkulkarni@...il.com
Subject: [PATCH v3 1/2] acpica: iort: Update SMMUv3 header for proximity domain mapping

ARM IORT specification (rev. C) has added two new fields to define
proximity domain for the SMMUv3 node in the IORT table.

Proximity Domain Valid:
	Set to 1 if the value provided in the Proximity Domain field is
	valid. Set to 0 otherwise.

Proximity domain:
	If the Proximity Domain Valid flag is set to 1, this entry
	provides the proximity domain to which this SMMU
	instance belongs.

Update header file to reflect this.

Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>
---
 include/acpi/actbl2.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 4b306a6..389e91f 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -805,6 +805,9 @@ struct acpi_iort_smmu_v3 {
 	u32 pri_gsiv;
 	u32 gerr_gsiv;
 	u32 sync_gsiv;
+	u8 pxm;
+	u8 reserved1;
+	u16 reserved2;
 };
 
 /* Values for Model field above */
@@ -817,6 +820,7 @@ struct acpi_iort_smmu_v3 {
 
 #define ACPI_IORT_SMMU_V3_COHACC_OVERRIDE   (1)
 #define ACPI_IORT_SMMU_V3_HTTU_OVERRIDE     (1<<1)
+#define ACPI_IORT_SMMU_V3_PXM_VALID         (1<<3)
 
 /*******************************************************************************
  *
-- 
1.8.1.4