[PATCH v2 0/2] remoteproc: imx_dsp_rproc: Add coredump and recovery support

Shengjiu Wang shengjiu.wang at nxp.com
Thu Jul 3 22:25:27 PDT 2025


When recovery is triggered, rproc_stop() is called first then
rproc_start(), but there is no rproc_unprepare_device() and
rproc_prepare_device() in the flow. As the software reset is needed
before DSP starts, so move software reset from imx_dsp_runtime_resume()
to .load() to make the recovery work. And make sure memory is cleared
before loading firmware.

Add call rproc_coredump_set_elf_info() to initialize the elf info for
coredump, otherwise coredump will report error "ELF class is not set".

changes in v2:
- move .reset() from runtime resume to .load()
- IRAM and DRAM still in the coredump scope.

Shengjiu Wang (2):
  remoteproc: imx_dsp_rproc: Add support of recovery process
  remoteproc: imx_dsp_rproc: Add support of coredump

 drivers/remoteproc/imx_dsp_rproc.c | 45 +++++++++++++++++++-----------
 1 file changed, 29 insertions(+), 16 deletions(-)

-- 
2.34.1




More information about the linux-arm-kernel mailing list