diff options
Diffstat (limited to 'arch/mips/kernel/irq.c')
| -rw-r--r-- | arch/mips/kernel/irq.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c index 7b845ba9dff4..981f86c26168 100644 --- a/arch/mips/kernel/irq.c +++ b/arch/mips/kernel/irq.c @@ -22,6 +22,7 @@ #include <linux/seq_file.h> #include <linux/kallsyms.h> #include <linux/kgdb.h> +#include <linux/ftrace.h> #include <asm/atomic.h> #include <asm/system.h> @@ -99,7 +100,7 @@ int show_interrupts(struct seq_file *p, void *v) } if (i < NR_IRQS) { - spin_lock_irqsave(&irq_desc[i].lock, flags); + raw_spin_lock_irqsave(&irq_desc[i].lock, flags); action = irq_desc[i].action; if (!action) goto skip; @@ -118,7 +119,7 @@ int show_interrupts(struct seq_file *p, void *v) seq_putc(p, '\n'); skip: - spin_unlock_irqrestore(&irq_desc[i].lock, flags); + raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags); } else if (i == NR_IRQS) { seq_putc(p, '\n'); seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count)); @@ -150,3 +151,32 @@ void __init init_IRQ(void) kgdb_early_setup = 1; #endif } + +/* + * do_IRQ handles all normal device IRQ's (the special + * SMP cross-CPU interrupts have their own specific + * handlers). + */ +void __irq_entry do_IRQ(unsigned int irq) +{ + irq_enter(); + __DO_IRQ_SMTC_HOOK(irq); + generic_handle_irq(irq); + irq_exit(); +} + +#ifdef CONFIG_MIPS_MT_SMTC_IRQAFF +/* + * To avoid inefficient and in some cases pathological re-checking of + * IRQ affinity, we have this variant that skips the affinity check. + */ + +void __irq_entry do_IRQ_no_affinity(unsigned int irq) +{ + irq_enter(); + __NO_AFFINITY_IRQ_SMTC_HOOK(irq); + generic_handle_irq(irq); + irq_exit(); +} + +#endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */ |