linux-kernel - [PATCH v1 6/6] dt-bindings: interrupt-controller: add optional memory-region

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Message-Id: <20190826190056.27854-7-pasha.tatashin@soleen.com>
Date:   Mon, 26 Aug 2019 15:00:56 -0400
From:   Pavel Tatashin <pasha.tatashin@...een.com>
To:     pasha.tatashin@...een.com, jmorris@...ei.org, sashal@...nel.org,
        kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, marc.zyngier@....com,
        james.morse@....com, vladimir.murzin@....com, mark.rutland@....com
Subject: [PATCH v1 6/6] dt-bindings: interrupt-controller: add optional memory-region

Allow pre-reserve memory in device tree that can be used in interrupt
controller tabes. This memory is required when kexec functionality is needed
with GICv3 controler and device trees.

Signed-off-by: Pavel Tatashin <pasha.tatashin@...een.com>
---
 .../bindings/interrupt-controller/arm,gic-v3.yaml          | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
index c34df35a25fc..7640aaa97302 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
@@ -102,6 +102,13 @@ properties:
       - $ref: /schemas/types.yaml#/definitions/uint32
       - maximum: 4096   # Should be enough?
 
+  memory-region:
+    description:
+      Memory used to allocate property and pending tables.
+      Required if kexec functionality is needed.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint64
+
   msi-controller:
     description:
       Only present if the Message Based Interrupt functionnality is
-- 
2.23.0