diff options
Diffstat (limited to 'arch/xtensa/kernel/traps.c')
| -rw-r--r-- | arch/xtensa/kernel/traps.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c index a8b8dae4139a..e4764f216a7a 100644 --- a/arch/xtensa/kernel/traps.c +++ b/arch/xtensa/kernel/traps.c @@ -157,6 +157,8 @@ COPROCESSOR(7), DEFINE_PER_CPU(unsigned long, exc_table[EXC_TABLE_SIZE/4]); +DEFINE_PER_CPU(struct debug_table, debug_table); + void die(const char*, struct pt_regs*, long); static inline void @@ -372,6 +374,15 @@ static void trap_init_excsave(void) __asm__ __volatile__("wsr %0, excsave1\n" : : "a" (excsave1)); } +static void trap_init_debug(void) +{ + unsigned long debugsave = (unsigned long)this_cpu_ptr(&debug_table); + + this_cpu_ptr(&debug_table)->debug_exception = debug_exception; + __asm__ __volatile__("wsr %0, excsave" __stringify(XCHAL_DEBUGLEVEL) + :: "a"(debugsave)); +} + /* * Initialize dispatch tables. * @@ -415,12 +426,14 @@ void __init trap_init(void) /* Initialize EXCSAVE_1 to hold the address of the exception table. */ trap_init_excsave(); + trap_init_debug(); } #ifdef CONFIG_SMP void secondary_trap_init(void) { trap_init_excsave(); + trap_init_debug(); } #endif |