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    SubjectRe: [PATCH v6 00/16] remoteproc: Add support for detaching a remote processor
    On Fri, Feb 26, 2021 at 05:40:49PM +0100, Arnaud POULIQUEN wrote:
    > Hi Mathieu,
    >
    > On 2/24/21 12:34 AM, Mathieu Poirier wrote:
    > > Following the work done here [1], this set provides support for the
    > > remoteproc core to release resources associated with a remote processor
    > > without having to switch it off. That way a platform driver can be removed
    > > or the application processor power cycled while the remote processor is
    > > still operating.
    > >
    > > Modifications for this revision are detailed in the changelog of each patch
    > > but the main difference is that going from RPROC_RUNNING -> RPROC_DETACHED
    > > is no longer supported to avoid dealing tricky resource table issues.
    >
    > This seems reasonable to me. If necessary, this could be part of a separate series.
    >
    > From test point of view, it is working pretty well on my side.

    Thanks for taking a look a this.
    Mathieu

    >
    > Thanks,
    > Arnaud
    >
    > >
    > > Applies cleanly on rproc-next (e8b4e9a21af7). I will rebase on 5.12-rc1 when it
    > > comes out next week.
    > >
    > > Thanks,
    > > Mathieu
    > >
    > > Arnaud POULIQUEN (1):
    > > remoteproc: stm32: Move memory parsing to rproc_ops
    > >
    > > Mathieu Poirier (15):
    > > remoteproc: Remove useless check in rproc_del()
    > > remoteproc: Rename function rproc_actuate()
    > > remoteproc: Add new RPROC_ATTACHED state
    > > remoteproc: Properly represent the attached state
    > > remoteproc: Add new get_loaded_rsc_table() to rproc_ops
    > > remoteproc: stm32: Move resource table setup to rproc_ops
    > > remoteproc: Add new detach() remoteproc operation
    > > remoteproc: Introduce function __rproc_detach()
    > > remoteproc: Introduce function rproc_detach()
    > > remoteproc: Properly deal with the resource table when attached
    > > remoteproc: Properly deal with a kernel panic when attached
    > > remoteproc: Properly deal with a start request when attached
    > > remoteproc: Properly deal with a stop request when attached
    > > remoteproc: Properly deal with a detach request when attached
    > > remoteproc: Refactor rproc delete and cdev release path
    > >
    > > drivers/remoteproc/remoteproc_cdev.c | 21 +-
    > > drivers/remoteproc/remoteproc_core.c | 263 ++++++++++++++++++++---
    > > drivers/remoteproc/remoteproc_internal.h | 10 +
    > > drivers/remoteproc/remoteproc_sysfs.c | 17 +-
    > > drivers/remoteproc/stm32_rproc.c | 168 +++++++--------
    > > include/linux/remoteproc.h | 21 +-
    > > 6 files changed, 362 insertions(+), 138 deletions(-)
    > >

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