diff options
Diffstat (limited to 'arch/tile/kernel/irq.c')
| -rw-r--r-- | arch/tile/kernel/irq.c | 52 |
1 files changed, 3 insertions, 49 deletions
diff --git a/arch/tile/kernel/irq.c b/arch/tile/kernel/irq.c index 5fd197e0a2d4..637f2ffaa5f5 100644 --- a/arch/tile/kernel/irq.c +++ b/arch/tile/kernel/irq.c @@ -54,13 +54,6 @@ static DEFINE_PER_CPU(unsigned long, irq_disable_mask) */ static DEFINE_PER_CPU(int, irq_depth); -/* State for allocating IRQs on Gx. */ -#if CHIP_HAS_IPI() -static unsigned long available_irqs = ((1UL << NR_IRQS) - 1) & - (~(1UL << IRQ_RESCHEDULE)); -static DEFINE_SPINLOCK(available_irqs_lock); -#endif - #if CHIP_HAS_IPI() /* Use SPRs to manipulate device interrupts. */ #define mask_irqs(irq_mask) __insn_mtspr(SPR_IPI_MASK_SET_K, irq_mask) @@ -278,50 +271,11 @@ int arch_show_interrupts(struct seq_file *p, int prec) return 0; } -/* - * Generic, controller-independent functions: - */ - #if CHIP_HAS_IPI() -int create_irq(void) -{ - unsigned long flags; - int result; - - spin_lock_irqsave(&available_irqs_lock, flags); - if (available_irqs == 0) - result = -ENOMEM; - else { - result = __ffs(available_irqs); - available_irqs &= ~(1UL << result); - dynamic_irq_init(result); - } - spin_unlock_irqrestore(&available_irqs_lock, flags); - - return result; -} -EXPORT_SYMBOL(create_irq); - -void destroy_irq(unsigned int irq) -{ - unsigned long flags; - - spin_lock_irqsave(&available_irqs_lock, flags); - available_irqs |= (1UL << irq); - dynamic_irq_cleanup(irq); - spin_unlock_irqrestore(&available_irqs_lock, flags); -} -EXPORT_SYMBOL(destroy_irq); - -unsigned int irq_alloc_hwirq(int node) -{ - int ret = create_irq(); - return ret < 0 ? 0 : ret; -} - -void irq_free_hwirq(unsigned int irq) +int arch_setup_hwirq(unsigned int irq, int node) { - destroy_irq(irq); + return irq >= NR_IRQS ? -EINVAL : 0; } +void arch_teardown_hwirq(unsigned int irq) { } #endif |