| Message ID | 20201126210642.897302-8-mathieu.poirier@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | remoteproc: Add support for detaching from rproc | expand |
Hi Mathieu On 11/26/20 10:06 PM, Mathieu Poirier wrote: > 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> Thanks, Arnaud > --- > include/linux/remoteproc.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h > index 9be112b5c09d..da15b77583d3 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) > @@ -382,6 +383,7 @@ 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); >
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 9be112b5c09d..da15b77583d3 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) @@ -382,6 +383,7 @@ 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);