diff options
| -rw-r--r-- | arch/xtensa/include/asm/traps.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/traps.h b/arch/xtensa/include/asm/traps.h index 5bd197097b77..f5cd7a7e65e0 100644 --- a/arch/xtensa/include/asm/traps.h +++ b/arch/xtensa/include/asm/traps.h @@ -42,6 +42,18 @@ struct exc_table { */ extern void * __init trap_set_handler(int cause, void *handler); extern void do_unhandled(struct pt_regs *regs, unsigned long exccause); +void fast_second_level_miss(void); + +/* Initialize minimal exc_table structure sufficient for basic paging */ +static inline void __init early_trap_init(void) +{ + static struct exc_table exc_table __initdata = { + .fast_kernel_handler[EXCCAUSE_DTLB_MISS] = + fast_second_level_miss, + }; + __asm__ __volatile__("wsr %0, excsave1\n" : : "a" (&exc_table)); +} + void secondary_trap_init(void); static inline void spill_registers(void) |