diff options
Diffstat (limited to 'arch/tile/kernel/irq.c')
| -rw-r--r-- | arch/tile/kernel/irq.c | 50 |
1 files changed, 17 insertions, 33 deletions
diff --git a/arch/tile/kernel/irq.c b/arch/tile/kernel/irq.c index 0586fdb9352..637f2ffaa5f 100644 --- a/arch/tile/kernel/irq.c +++ b/arch/tile/kernel/irq.c @@ -21,6 +21,7 @@ #include <hv/drv_pcie_rc_intf.h> #include <arch/spr_def.h> #include <asm/traps.h> +#include <linux/perf_event.h> /* Bit-flag stored in irq_desc->chip_data to indicate HW-cleared irqs. */ #define IS_HW_CLEARED 1 @@ -53,13 +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) @@ -261,37 +255,27 @@ void ack_bad_irq(unsigned int irq) } /* - * Generic, controller-independent functions: + * /proc/interrupts printing: */ - -#if CHIP_HAS_IPI() -int create_irq(void) +int arch_show_interrupts(struct seq_file *p, int prec) { - 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); +#ifdef CONFIG_PERF_EVENTS + int i; - return result; + seq_printf(p, "%*s: ", prec, "PMI"); + + for_each_online_cpu(i) + seq_printf(p, "%10llu ", per_cpu(perf_irqs, i)); + seq_puts(p, " perf_events\n"); +#endif + return 0; } -EXPORT_SYMBOL(create_irq); -void destroy_irq(unsigned int irq) +#if CHIP_HAS_IPI() +int arch_setup_hwirq(unsigned int irq, int node) { - 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); + return irq >= NR_IRQS ? -EINVAL : 0; } -EXPORT_SYMBOL(destroy_irq); + +void arch_teardown_hwirq(unsigned int irq) { } #endif |