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

Message

Mathieu Poirier March 12, 2021, 4:24 p.m. UTC

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(-)