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 10/19] remoteproc: Add new detach() remoteproc operation
Date: Thu, 11 Feb 2021 16:46:18 -0700 [thread overview]
Message-ID: <20210211234627.2669674-11-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20210211234627.2669674-1-mathieu.poirier@linaro.org>
Add an new detach() operation in order to support scenarios where
the remoteproc core is going away but the remote processor is
kept operating. This could be the case when the system is
rebooted or when the platform driver is removed.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
---
include/linux/remoteproc.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 51538a7d120d..eff55ec72e80 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -361,6 +361,7 @@ enum rsc_handling_status {
* @start: power on the device and boot it
* @stop: power off the device
* @attach: attach to a device that his already powered up
+ * @detach: detach from a device, leaving it powered up
* @kick: kick a virtqueue (virtqueue id given as a parameter)
* @da_to_va: optional platform hook to perform address translations
* @parse_fw: parse firmware to extract information (e.g. resource table)
@@ -385,6 +386,7 @@ struct rproc_ops {
int (*start)(struct rproc *rproc);
int (*stop)(struct rproc *rproc);
int (*attach)(struct rproc *rproc);
+ int (*detach)(struct rproc *rproc);
void (*kick)(struct rproc *rproc, int vqid);
void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len);
int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
--
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 10/19] remoteproc: Add new detach() remoteproc operation
Date: Thu, 11 Feb 2021 16:46:18 -0700 [thread overview]
Message-ID: <20210211234627.2669674-11-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20210211234627.2669674-1-mathieu.poirier@linaro.org>
Add an new detach() operation in order to support scenarios where
the remoteproc core is going away but the remote processor is
kept operating. This could be the case when the system is
rebooted or when the platform driver is removed.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
---
include/linux/remoteproc.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 51538a7d120d..eff55ec72e80 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -361,6 +361,7 @@ enum rsc_handling_status {
* @start: power on the device and boot it
* @stop: power off the device
* @attach: attach to a device that his already powered up
+ * @detach: detach from a device, leaving it powered up
* @kick: kick a virtqueue (virtqueue id given as a parameter)
* @da_to_va: optional platform hook to perform address translations
* @parse_fw: parse firmware to extract information (e.g. resource table)
@@ -385,6 +386,7 @@ struct rproc_ops {
int (*start)(struct rproc *rproc);
int (*stop)(struct rproc *rproc);
int (*attach)(struct rproc *rproc);
+ int (*detach)(struct rproc *rproc);
void (*kick)(struct rproc *rproc, int vqid);
void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len);
int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
--
2.25.1
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next prev parent reply other threads:[~2021-02-11 23:50 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 ` [PATCH v5 01/19] dt-bindings: remoteproc: Add bindind to support autonomous processors Mathieu Poirier
2021-02-11 23:46 ` 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 ` Mathieu Poirier [this message]
2021-02-11 23:46 ` [PATCH v5 10/19] remoteproc: Add new detach() remoteproc operation 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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