From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> The patches convert riscv to use the generic entry infrastructure from kernel/entry/*. Add independent irq stacks (IRQ_STACKS) for percpu to prevent kernel stack overflows. Add the HAVE_SOFTIRQ_ON_OWN_STACK feature for the IRQ_STACKS config. Guo Ren (3): riscv: convert to generic entry riscv: Support HAVE_IRQ_EXIT_ON_IRQ_STACK riscv: Support HAVE_SOFTIRQ_ON_OWN_STACK arch/riscv/Kconfig | 10 + arch/riscv/include/asm/csr.h | 1 - arch/riscv/include/asm/entry-common.h | 8 + arch/riscv/include/asm/irq.h | 2 + arch/riscv/include/asm/ptrace.h | 10 +- arch/riscv/include/asm/stacktrace.h | 5 + arch/riscv/include/asm/syscall.h | 5 + arch/riscv/include/asm/thread_info.h | 15 +- arch/riscv/include/asm/vmap_stack.h | 28 +++ arch/riscv/kernel/entry.S | 255 +++++--------------------- arch/riscv/kernel/irq.c | 74 ++++++++ arch/riscv/kernel/ptrace.c | 40 ---- arch/riscv/kernel/signal.c | 20 +- arch/riscv/kernel/sys_riscv.c | 26 +++ arch/riscv/kernel/traps.c | 11 ++ arch/riscv/mm/fault.c | 12 +- 16 files changed, 241 insertions(+), 281 deletions(-) create mode 100644 arch/riscv/include/asm/entry-common.h create mode 100644 arch/riscv/include/asm/vmap_stack.h -- 2.36.1
