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From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: ohad@wizery.com, bjorn.andersson@linaro.org, arnaud.pouliquen@st.com
Cc: robh+dt@kernel.org, mcoquelin.stm32@gmail.com,
	alexandre.torgue@st.com, linux-remoteproc@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 01/19] dt-bindings: remoteproc: Add bindind to support autonomous processors
Date: Thu, 11 Feb 2021 16:46:09 -0700	[thread overview]
Message-ID: <20210211234627.2669674-2-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20210211234627.2669674-1-mathieu.poirier@linaro.org>

This patch adds a binding to guide the remoteproc core on how to deal with
remote processors in two cases:

1) When an application holding a reference to a remote processor character
   device interface crashes.

2) when the platform driver for a remote processor is removed.

In both cases if "autonomous-on-core-reboot" is specified in the remote
processor DT node, the remoteproc core will detach the remote processor
rather than switching it off.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../bindings/remoteproc/remoteproc-core.yaml  | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml

diff --git a/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml b/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml
new file mode 100644
index 000000000000..e8bb8ef9031a
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/remoteproc-core.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding(s) for a primary processor applicable to all ancillary
+       processors
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+
+description:
+  This document defines the bindings used by a primary processor to determine
+  the state it should leave an ancillary processor when the former is no longer
+  functioning.
+
+properties:
+  autonomous-on-core-reboot:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      When specified the ancillary processor should be left operational when
+      the primary processor is no longer available.  Otherwise the ancillary
+      processor should be made inoperative.
+
+additionalProperties: true
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: ohad@wizery.com, bjorn.andersson@linaro.org, arnaud.pouliquen@st.com
Cc: devicetree@vger.kernel.org, alexandre.torgue@st.com,
	linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org,
	robh+dt@kernel.org, mcoquelin.stm32@gmail.com,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 01/19] dt-bindings: remoteproc: Add bindind to support autonomous processors
Date: Thu, 11 Feb 2021 16:46:09 -0700	[thread overview]
Message-ID: <20210211234627.2669674-2-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20210211234627.2669674-1-mathieu.poirier@linaro.org>

This patch adds a binding to guide the remoteproc core on how to deal with
remote processors in two cases:

1) When an application holding a reference to a remote processor character
   device interface crashes.

2) when the platform driver for a remote processor is removed.

In both cases if "autonomous-on-core-reboot" is specified in the remote
processor DT node, the remoteproc core will detach the remote processor
rather than switching it off.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../bindings/remoteproc/remoteproc-core.yaml  | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml

diff --git a/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml b/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml
new file mode 100644
index 000000000000..e8bb8ef9031a
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/remoteproc-core.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding(s) for a primary processor applicable to all ancillary
+       processors
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+
+description:
+  This document defines the bindings used by a primary processor to determine
+  the state it should leave an ancillary processor when the former is no longer
+  functioning.
+
+properties:
+  autonomous-on-core-reboot:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      When specified the ancillary processor should be left operational when
+      the primary processor is no longer available.  Otherwise the ancillary
+      processor should be made inoperative.
+
+additionalProperties: true
-- 
2.25.1


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  reply	other threads:[~2021-02-11 23:48 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-11 23:46 [PATCH v5 00/19] remoteproc: Add support for detaching a remote processor Mathieu Poirier
2021-02-11 23:46 ` Mathieu Poirier
2021-02-11 23:46 ` Mathieu Poirier [this message]
2021-02-11 23:46   ` [PATCH v5 01/19] dt-bindings: remoteproc: Add bindind to support autonomous processors Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 02/19] remoteproc: Re-check state in rproc_shutdown() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 03/19] remoteproc: Remove useless check in rproc_del() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 04/19] remoteproc: Rename function rproc_actuate() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 05/19] remoteproc: Add new RPROC_ATTACHED state Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 06/19] remoteproc: Properly represent the attached state Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 07/19] remoteproc: Add new get_loaded_rsc_table() to rproc_ops Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-15 13:10   ` Arnaud POULIQUEN
2021-02-15 13:10     ` Arnaud POULIQUEN
2021-02-17 21:22     ` Mathieu Poirier
2021-02-17 21:22       ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 08/19] remoteproc: stm32: Move resource table setup " Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 09/19] remoteproc: stm32: Move memory parsing " Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 10/19] remoteproc: Add new detach() remoteproc operation Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 11/19] remoteproc: Introduce function __rproc_detach() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 12/19] remoteproc: Introduce function rproc_detach() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 13/19] remoteproc: Properly deal with the resource table Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-15 12:06   ` Dan Carpenter
2021-02-15 12:06     ` Dan Carpenter
2021-02-15 12:06     ` Dan Carpenter
2021-02-15 12:06     ` Dan Carpenter
2021-02-15 13:19   ` Arnaud POULIQUEN
2021-02-15 13:19     ` Arnaud POULIQUEN
2021-02-11 23:46 ` [PATCH v5 14/19] remoteproc: Add return value to function rproc_shutdown() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 15/19] remoteproc: Properly deal with a kernel panic when attached Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 16/19] remoteproc: Properly deal with a stop request " Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 17/19] remoteproc: Properly deal with a start " Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 18/19] remoteproc: Properly deal with detach request Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 19/19] remoteproc: Refactor rproc delete and cdev release path Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier

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