Hi,
When a firmware crashes it creats a panic information into a telemetry slot.
The panic format is defined by Zephyr, includes stack and additional information
to help to identify the reason for the crash.
Part of the firmware exception handling the firmware also sends an
EXCEPTION_CAUGHT notification.
This series implements the kernel side handling of the exception:
print information into the kernel log
export the whole telemetry slot to user space for tools extract additional
information from the panic dump.
Regards,
Peter
---
Rander Wang (9):
ASoC: SOF: Xtensa: dump ar registers to restore call stack
ASoC: SOF: ipc4-mtrace: move debug slot related definitions to
header.h
ASoC: SOF: ipc4: add a helper function to search debug slot
ASoC: SOF: ipc4: add definition of telemetry slot for exception
handling
ASoC: SOF: ipc4: add exception node in sof debugfs directory
ASoC: SOF: Intel: add telemetry retrieval support on Intel platforms
ASoC: SOF: Intel: mtl: dump dsp stack
ASoC: SOF: Intel: hda: add ipc4 FW panic support on CAVS 2.5+
platforms
ASoC: SOF: ipc4: handle EXCEPTION_CAUGHT notification from firmware
include/sound/sof/ipc4/header.h | 17 ++++++
sound/soc/sof/Makefile | 2 +-
sound/soc/sof/intel/Makefile | 3 +-
sound/soc/sof/intel/hda.c | 14 +++++
sound/soc/sof/intel/hda.h | 1 +
sound/soc/sof/intel/mtl.c | 3 ++
sound/soc/sof/intel/telemetry.c | 95 +++++++++++++++++++++++++++++++++
sound/soc/sof/intel/telemetry.h | 35 ++++++++++++
sound/soc/sof/intel/tgl.c | 1 +
sound/soc/sof/ipc4-mtrace.c | 34 ++++--------
sound/soc/sof/ipc4-priv.h | 3 ++
sound/soc/sof/ipc4-telemetry.c | 95 +++++++++++++++++++++++++++++++++
sound/soc/sof/ipc4-telemetry.h | 73 +++++++++++++++++++++++++
sound/soc/sof/ipc4.c | 29 ++++++++++
sound/soc/sof/xtensa/core.c | 11 ++++
15 files changed, 391 insertions(+), 25 deletions(-)
create mode 100644 sound/soc/sof/intel/telemetry.c
create mode 100644 sound/soc/sof/intel/telemetry.h
create mode 100644 sound/soc/sof/ipc4-telemetry.c
create mode 100644 sound/soc/sof/ipc4-telemetry.h
--
2.42.0
