diff options
Diffstat (limited to 'arch/riscv/kernel/entry.S')
| -rw-r--r-- | arch/riscv/kernel/entry.S | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S index 54ca4564a9..9d1a305d55 100644 --- a/arch/riscv/kernel/entry.S +++ b/arch/riscv/kernel/entry.S @@ -83,6 +83,10 @@ SYM_CODE_START(handle_exception) /* Load the kernel shadow call stack pointer if coming from userspace */ scs_load_current_if_task_changed s5 +#ifdef CONFIG_RISCV_ISA_V_PREEMPTIVE + move a0, sp + call riscv_v_context_nesting_start +#endif move a0, sp /* pt_regs */ la ra, ret_from_exception @@ -138,6 +142,10 @@ SYM_CODE_START_NOALIGN(ret_from_exception) */ csrw CSR_SCRATCH, tp 1: +#ifdef CONFIG_RISCV_ISA_V_PREEMPTIVE + move a0, sp + call riscv_v_context_nesting_end +#endif REG_L a0, PT_STATUS(sp) /* * The current load reservation is effectively part of the processor's |