diff options
Diffstat (limited to 'arch/loongarch/kernel/switch.S')
| -rw-r--r-- | arch/loongarch/kernel/switch.S | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/arch/loongarch/kernel/switch.S b/arch/loongarch/kernel/switch.S index 9c23cb7e432f..f377d8f5c51a 100644 --- a/arch/loongarch/kernel/switch.S +++ b/arch/loongarch/kernel/switch.S @@ -16,18 +16,23 @@ */ .align 5 SYM_FUNC_START(__switch_to) - csrrd t1, LOONGARCH_CSR_PRMD - stptr.d t1, a0, THREAD_CSRPRMD +#ifdef CONFIG_32BIT + PTR_ADDI a0, a0, TASK_STRUCT_OFFSET + PTR_ADDI a1, a1, TASK_STRUCT_OFFSET +#endif + csrrd t1, LOONGARCH_CSR_PRMD + LONG_SPTR t1, a0, (THREAD_CSRPRMD - TASK_STRUCT_OFFSET) cpu_save_nonscratch a0 - stptr.d ra, a0, THREAD_REG01 - stptr.d a3, a0, THREAD_SCHED_RA - stptr.d a4, a0, THREAD_SCHED_CFA + LONG_SPTR a3, a0, (THREAD_SCHED_RA - TASK_STRUCT_OFFSET) + LONG_SPTR a4, a0, (THREAD_SCHED_CFA - TASK_STRUCT_OFFSET) + #if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_SMP) - la t7, __stack_chk_guard - LONG_L t8, a1, TASK_STACK_CANARY - LONG_S t8, t7, 0 + la t7, __stack_chk_guard + LONG_LPTR t8, a1, (TASK_STACK_CANARY - TASK_STRUCT_OFFSET) + LONG_SPTR t8, t7, 0 #endif + move tp, a2 cpu_restore_nonscratch a1 @@ -35,8 +40,11 @@ SYM_FUNC_START(__switch_to) PTR_ADD t0, t0, tp set_saved_sp t0, t1, t2 - ldptr.d t1, a1, THREAD_CSRPRMD - csrwr t1, LOONGARCH_CSR_PRMD + LONG_LPTR t1, a1, (THREAD_CSRPRMD - TASK_STRUCT_OFFSET) + csrwr t1, LOONGARCH_CSR_PRMD +#ifdef CONFIG_32BIT + PTR_ADDI a0, a0, -TASK_STRUCT_OFFSET +#endif jr ra SYM_FUNC_END(__switch_to) |