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-rw-r--r--arch/loongarch/kernel/traps.c42
1 files changed, 29 insertions, 13 deletions
diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c
index aebfc3733a76..f9f4eb00c92e 100644
--- a/arch/loongarch/kernel/traps.c
+++ b/arch/loongarch/kernel/traps.c
@@ -53,6 +53,32 @@
#include "access-helper.h"
+void *exception_table[EXCCODE_INT_START] = {
+ [0 ... EXCCODE_INT_START - 1] = handle_reserved,
+
+ [EXCCODE_TLBI] = handle_tlb_load,
+ [EXCCODE_TLBL] = handle_tlb_load,
+ [EXCCODE_TLBS] = handle_tlb_store,
+ [EXCCODE_TLBM] = handle_tlb_modify,
+ [EXCCODE_TLBNR] = handle_tlb_protect,
+ [EXCCODE_TLBNX] = handle_tlb_protect,
+ [EXCCODE_TLBPE] = handle_tlb_protect,
+ [EXCCODE_ADE] = handle_ade,
+ [EXCCODE_ALE] = handle_ale,
+ [EXCCODE_BCE] = handle_bce,
+ [EXCCODE_SYS] = handle_sys,
+ [EXCCODE_BP] = handle_bp,
+ [EXCCODE_INE] = handle_ri,
+ [EXCCODE_IPE] = handle_ri,
+ [EXCCODE_FPDIS] = handle_fpu,
+ [EXCCODE_LSXDIS] = handle_lsx,
+ [EXCCODE_LASXDIS] = handle_lasx,
+ [EXCCODE_FPE] = handle_fpe,
+ [EXCCODE_WATCH] = handle_watch,
+ [EXCCODE_BTDIS] = handle_lbt,
+};
+EXPORT_SYMBOL_GPL(exception_table);
+
static void show_backtrace(struct task_struct *task, const struct pt_regs *regs,
const char *loglvl, bool user)
{
@@ -1150,19 +1176,9 @@ void __init trap_init(void)
for (i = EXCCODE_INT_START; i <= EXCCODE_INT_END; i++)
set_handler(i * VECSIZE, handle_vint, VECSIZE);
- set_handler(EXCCODE_ADE * VECSIZE, handle_ade, VECSIZE);
- set_handler(EXCCODE_ALE * VECSIZE, handle_ale, VECSIZE);
- set_handler(EXCCODE_BCE * VECSIZE, handle_bce, VECSIZE);
- set_handler(EXCCODE_SYS * VECSIZE, handle_sys, VECSIZE);
- set_handler(EXCCODE_BP * VECSIZE, handle_bp, VECSIZE);
- set_handler(EXCCODE_INE * VECSIZE, handle_ri, VECSIZE);
- set_handler(EXCCODE_IPE * VECSIZE, handle_ri, VECSIZE);
- set_handler(EXCCODE_FPDIS * VECSIZE, handle_fpu, VECSIZE);
- set_handler(EXCCODE_LSXDIS * VECSIZE, handle_lsx, VECSIZE);
- set_handler(EXCCODE_LASXDIS * VECSIZE, handle_lasx, VECSIZE);
- set_handler(EXCCODE_FPE * VECSIZE, handle_fpe, VECSIZE);
- set_handler(EXCCODE_BTDIS * VECSIZE, handle_lbt, VECSIZE);
- set_handler(EXCCODE_WATCH * VECSIZE, handle_watch, VECSIZE);
+ /* Set exception vector handler */
+ for (i = EXCCODE_ADE; i <= EXCCODE_BTDIS; i++)
+ set_handler(i * VECSIZE, exception_table[i], VECSIZE);
cache_error_setup();