diff options
Diffstat (limited to 'arch/arm/include/asm/mach/irq.h')
| -rw-r--r-- | arch/arm/include/asm/mach/irq.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h index 22ac140edd9..febe495d0c6 100644 --- a/arch/arm/include/asm/mach/irq.h +++ b/arch/arm/include/asm/mach/irq.h @@ -34,4 +34,35 @@ do { \ raw_spin_unlock(&desc->lock); \ } while(0) +#ifndef __ASSEMBLY__ +/* + * Entry/exit functions for chained handlers where the primary IRQ chip + * may implement either fasteoi or level-trigger flow control. + */ +static inline void chained_irq_enter(struct irq_chip *chip, + struct irq_desc *desc) +{ + /* FastEOI controllers require no action on entry. */ + if (chip->irq_eoi) + return; + + if (chip->irq_mask_ack) { + chip->irq_mask_ack(&desc->irq_data); + } else { + chip->irq_mask(&desc->irq_data); + if (chip->irq_ack) + chip->irq_ack(&desc->irq_data); + } +} + +static inline void chained_irq_exit(struct irq_chip *chip, + struct irq_desc *desc) +{ + if (chip->irq_eoi) + chip->irq_eoi(&desc->irq_data); + else + chip->irq_unmask(&desc->irq_data); +} +#endif + #endif |