diff options
| -rw-r--r-- | include/linux/irq.h | 16 | ||||
| -rw-r--r-- | kernel/irq/chip.c | 28 |
2 files changed, 13 insertions, 31 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index a900741..67b77cf 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -74,7 +74,7 @@ typedef void (*irq_flow_handler_t)(unsigned int irq, #define IRQF_MODIFY_MASK \ (IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \ IRQ_NOAUTOEN | IRQ_MOVE_PCNTXT | IRQ_LEVEL | IRQ_NO_BALANCING | \ - IRQ_PER_CPU) + IRQ_PER_CPU | IRQ_NESTED_THREAD) #ifdef CONFIG_IRQ_PER_CPU # define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU) @@ -307,8 +307,6 @@ set_irq_chained_handler(unsigned int irq, irq_flow_handler_t handle) __set_irq_handler(irq, handle, 1, NULL); } -extern void set_irq_nested_thread(unsigned int irq, int nest); - void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set); static inline void irq_set_status_flags(unsigned int irq, unsigned long set) @@ -331,6 +329,14 @@ static inline void irq_set_probe(unsigned int irq) irq_modify_status(irq, IRQ_NOPROBE, 0); } +static inline void irq_set_nested_thread(unsigned int irq, bool nest) +{ + if (nest) + irq_set_status_flags(irq, IRQ_NESTED_THREAD); + else + irq_clear_status_flags(irq, IRQ_NESTED_THREAD); +} + /* Handle dynamic irq creation and destruction */ extern unsigned int create_irq_nr(unsigned int irq_want, int node); extern int create_irq(void); @@ -448,6 +454,10 @@ static inline void set_irq_probe(unsigned int irq) { irq_set_probe(irq); } +static inline void set_irq_nested_thread(unsigned int irq, int nest) +{ + irq_set_nested_thread(irq, nest); +} #endif int irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node); diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 143eb2a..bff21f2 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -164,34 +164,6 @@ struct irq_data *irq_get_irq_data(unsigned int irq) } EXPORT_SYMBOL_GPL(irq_get_irq_data); -/** - * set_irq_nested_thread - Set/Reset the IRQ_NESTED_THREAD flag of an irq - * - * @irq: Interrupt number - * @nest: 0 to clear / 1 to set the IRQ_NESTED_THREAD flag - * - * The IRQ_NESTED_THREAD flag indicates that on - * request_threaded_irq() no separate interrupt thread should be - * created for the irq as the handler are called nested in the - * context of a demultiplexing interrupt handler thread. - */ -void set_irq_nested_thread(unsigned int irq, int nest) -{ - struct irq_desc *desc = irq_to_desc(irq); - unsigned long flags; - - if (!desc) - return; - - raw_spin_lock_irqsave(&desc->lock, flags); - if (nest) - desc->status |= IRQ_NESTED_THREAD; - else - desc->status &= ~IRQ_NESTED_THREAD; - raw_spin_unlock_irqrestore(&desc->lock, flags); -} -EXPORT_SYMBOL_GPL(set_irq_nested_thread); - int irq_startup(struct irq_desc *desc) { desc->status &= ~IRQ_DISABLED; |
