[v3,0/3] Extend coredump functionality

Message

Rishabh Bhatnagar May 14, 2020, 8:07 p.m. UTC

This patch series moves the coredump functionality to a separate
file and adds "inline" coredump feature. Inline coredump directly
copies segments from device memory during coredump to userspace.
This avoids extra memory usage at the cost of speed. Recovery is
stalled untill all data is read by userspace.

Changelog:

v3 -> v2:
- Move entire coredump functionality to remoteproc_coredump.c
- Modify rproc_coredump to perform dump according to conf. set by userspace
- Move the userspace configuration to debugfs from sysfs.
- Keep the default coredump implementation as is

v2 -> v1:
- Introduce new file for coredump.
- Add userspace sysfs configuration for dump type.

Rishabh Bhatnagar (3):
  remoteproc: Move coredump functionality to a new file
  remoteproc: Add inline coredump functionality
  remoteproc: Add coredump debugfs entry

 drivers/remoteproc/Makefile              |   1 +
 drivers/remoteproc/remoteproc_core.c     | 191 ------------------
 drivers/remoteproc/remoteproc_coredump.c | 322 +++++++++++++++++++++++++++++++
 drivers/remoteproc/remoteproc_debugfs.c  |  86 +++++++++
 drivers/remoteproc/remoteproc_internal.h |   4 +
 include/linux/remoteproc.h               |  15 ++
 6 files changed, 428 insertions(+), 191 deletions(-)
 create mode 100644 drivers/remoteproc/remoteproc_coredump.c