[PATCH v8 00/17] remoteproc: Add support for detaching a remote processor

From: Mathieu Poirier
Date: Fri Mar 12 2021 - 11:25:32 EST


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.

This revision fixes a couple of minor problems with patch 11 and 12 as
pointed out by Arnaud and the kernel test robot (detailed in the change
log for each patch). Other patches have not changed.

Applies cleanly on rproc-next and v5.12-rc2.

Thanks,
Mathieu

Arnaud POULIQUEN (1):
remoteproc: stm32: Move memory parsing to rproc_ops

Mathieu Poirier (16):
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 detaching
remoteproc: Properly deal with the resource table when stopping
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 function rproc_cdev_release()

drivers/remoteproc/remoteproc_cdev.c | 21 +-
drivers/remoteproc/remoteproc_core.c | 302 ++++++++++++++++++++---
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, 401 insertions(+), 138 deletions(-)

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2.25.1