Sometimes firmware sizes can be in ten's of MB's and reading all the memory during coredump can consume lot of time and memory. Introducing support for mini-dumps. Mini-dump contains smallest amount of useful information, that could help to debug subsystem crashes. During bootup memory is allocated in SMEM (Shared memory) in the form of a table that contains the physical addresses and sizes of the regions that are supposed to be collected during coredump. This memory is shared amongst all processors in a Qualcomm platform, so all remoteprocs fill in their entry in the global table once they are out of reset. This patch series adds support for parsing the global minidump table and uses the current coredump frameork to expose this memory to userspace during remoteproc's recovery. This patch series also integrates the patch: https://patchwork.kernel.org/patch/11695541/ sent by Siddharth. Gurbir Arora (2): remoteproc: core: Add coredump to remoteproc ops remoteproc: qcom: Add capability to collect minidumps Rishabh Bhatnagar (1): remoteproc: qcom: Add minidump id for sm8150 modem remoteproc drivers/remoteproc/qcom_minidump.h | 64 +++++++++ drivers/remoteproc/qcom_q6v5_pas.c | 21 ++- drivers/remoteproc/remoteproc_core.c | 7 +- drivers/remoteproc/remoteproc_coredump.c | 211 +++++++++++++++++++++++++++- drivers/remoteproc/remoteproc_elf_helpers.h | 27 ++++ drivers/remoteproc/remoteproc_internal.h | 2 + include/linux/remoteproc.h | 3 + 7 files changed, 331 insertions(+), 4 deletions(-) create mode 100644 drivers/remoteproc/qcom_minidump.h -- 1.9.1
