diff options
Diffstat (limited to 'arch/arc/kernel/irq.c')
| -rw-r--r-- | arch/arc/kernel/irq.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c index 7d653c0d077..835fa5e71b6 100644 --- a/arch/arc/kernel/irq.c +++ b/arch/arc/kernel/irq.c @@ -150,6 +150,32 @@ void arch_do_IRQ(unsigned int irq, struct pt_regs *regs) set_irq_regs(old_regs); } +void arc_request_percpu_irq(int irq, int cpu, + irqreturn_t (*isr)(int irq, void *dev), + const char *irq_nm, + void *percpu_dev) +{ + /* Boot cpu calls request, all call enable */ + if (!cpu) { + int rc; + + /* + * These 2 calls are essential to making percpu IRQ APIs work + * Ideally these details could be hidden in irq chip map function + * but the issue is IPIs IRQs being static (non-DT) and platform + * specific, so we can't identify them there. + */ + irq_set_percpu_devid(irq); + irq_modify_status(irq, IRQ_NOAUTOEN, 0); /* @irq, @clr, @set */ + + rc = request_percpu_irq(irq, isr, irq_nm, percpu_dev); + if (rc) + panic("Percpu IRQ request failed for %d\n", irq); + } + + enable_percpu_irq(irq, 0); +} + /* * arch_local_irq_enable - Enable interrupts. * |