diff options
Diffstat (limited to 'arch/metag/kernel/kick.c')
| -rw-r--r-- | arch/metag/kernel/kick.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/metag/kernel/kick.c b/arch/metag/kernel/kick.c index 50fcbec98cd2..beb377621322 100644 --- a/arch/metag/kernel/kick.c +++ b/arch/metag/kernel/kick.c @@ -26,6 +26,8 @@ * pass it as an argument. */ #include <linux/export.h> +#include <linux/hardirq.h> +#include <linux/irq.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/types.h> @@ -66,6 +68,7 @@ EXPORT_SYMBOL(kick_unregister_func); TBIRES kick_handler(TBIRES State, int SigNum, int Triggers, int Inst, PTBI pTBI) { + struct pt_regs *old_regs; struct kick_irq_handler *kh; struct list_head *lh; int handled = 0; @@ -79,6 +82,9 @@ kick_handler(TBIRES State, int SigNum, int Triggers, int Inst, PTBI pTBI) trace_hardirqs_off(); + old_regs = set_irq_regs((struct pt_regs *)State.Sig.pCtx); + irq_enter(); + /* * There is no need to disable interrupts here because we * can't nest KICK interrupts in a KICK interrupt handler. @@ -97,5 +103,8 @@ kick_handler(TBIRES State, int SigNum, int Triggers, int Inst, PTBI pTBI) WARN_ON(!handled); + irq_exit(); + set_irq_regs(old_regs); + return tail_end(ret); } |