1fa42c98bd
Add documentation for dcc and memory-dump driver. Change-Id: Iadca5ac385af2f79c8f8449cd5a538f24815b436 Signed-off-by: Yuanfang Zhang <quic_yuanfang@quicinc.com>
72 lines
1.6 KiB
YAML
72 lines
1.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: "http://devicetree.org/schemas/soc/qcom/qcom,memory-dump.yaml#"
|
|
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
|
|
|
|
title: The document describes the device tree binding for qcom memory dump.
|
|
|
|
maintainers:
|
|
- Yuanfang Zhang <quic_yuanfang@quicinc.com>
|
|
|
|
description:
|
|
QTI memory dump driver allows various client subsystems to register and
|
|
allocate respective dump regions. At the time of deadlocks or cpu hangs
|
|
these dump regions are captured to give a snapshot of the system at the
|
|
time of the crash.
|
|
|
|
properties:
|
|
compatible:
|
|
items:
|
|
- const: qcom,mem-dump
|
|
|
|
memory-region:
|
|
$ref: '/schemas/types.yaml#/definitions/phandle'
|
|
maxItems: 1
|
|
description: |
|
|
CMA region which is owned by this device.
|
|
|
|
required:
|
|
- compatible
|
|
- memory-region
|
|
|
|
additionalProperties: false
|
|
|
|
patternProperties:
|
|
"[A-Za-z0-9_]+":
|
|
type: object
|
|
description:
|
|
dump entry for subsystem client.
|
|
|
|
properties:
|
|
qcom,dump-size:
|
|
maxItems: 1
|
|
description:
|
|
The size of memory that needs to be allocated for the
|
|
particular node.
|
|
|
|
qcom,dump-id:
|
|
maxItems: 1
|
|
description:
|
|
The ID within the data dump table where this entry needs
|
|
to be added.
|
|
|
|
required:
|
|
- qcom,dump-size
|
|
- qcom,dump-id
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
mem_dump {
|
|
compatible = "qcom,mem-dump";
|
|
memory-region = <&dump_mem>;
|
|
|
|
rpmh_dump {
|
|
qcom,dump-size = <0x2000000>;
|
|
qcom,dump-id = <0xEC>;
|
|
};
|
|
};
|
|
|