The issues are mentioned in patches 1/4/5/6. I will update kdump documentation for MIPS if the series gets accepted. Testing has been done on single core i6500/Boston with IOCU, dual core i6500 without IOCU, and dual core interAptiv without IOCU. Changes: v4 - v3: * In patch #1, idle_task_exit() is moved out from play_dead() to its sole caller arch_cpu_idle_dead(). So no interface change of play_dead(). * In patch #6, the kexec_prepare method for the Generic platform is defined as uhi_machine_kexec_prepare() for all platforms using UHI boot protocol. v3 - v2: * Code style changes according to `scripts/checkpatch.pl --strict`. Patch #6, like before, still has a warning message reminding if MAINTAINERS needs updating. But it does NOT involve a maintainer change. * Add LIBFDT to CPU_LOONGSON3 for default_machine_kexec_prepare(). v2 - v1: * Tested on MIPS32R2 platform in addition to MIPS64R6. * Added patches #5 and #6. * In patch #2, removed the unnecessary inclusion of asm/mipsmtregs.h Dengcheng Zhu (6): MIPS: Make play_dead() work for kexec MIPS: kexec: Let the new kernel handle all CPUs MIPS: kexec: Deprecate (relocated_)kexec_smp_wait MIPS: kexec: Do not flush system wide caches in machine_kexec() MIPS: kexec: Relax memory restriction MIPS: kexec: Use prepare method from Generic for UHI platforms arch/mips/Kconfig | 4 ++ arch/mips/cavium-octeon/setup.c | 2 +- arch/mips/cavium-octeon/smp.c | 34 ++++++----- arch/mips/generic/Makefile | 1 - arch/mips/generic/kexec.c | 44 -------------- arch/mips/include/asm/kexec.h | 11 ++-- arch/mips/include/asm/smp.h | 4 +- arch/mips/kernel/crash.c | 4 +- arch/mips/kernel/machine_kexec.c | 82 +++++++++++++++++++++++---- arch/mips/kernel/process.c | 2 + arch/mips/kernel/relocate_kernel.S | 39 ------------- arch/mips/kernel/smp-bmips.c | 8 ++- arch/mips/kernel/smp-cps.c | 49 +++++++++------- arch/mips/loongson64/loongson-3/smp.c | 82 ++++++++++++++------------- 14 files changed, 183 insertions(+), 183 deletions(-) delete mode 100644 arch/mips/generic/kexec.c -- 2.17.1