diff options
Diffstat (limited to 'arch/m68k/kernel/ints.c')
| -rw-r--r-- | arch/m68k/kernel/ints.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index f6a46986512..cea439f9819 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -31,6 +31,7 @@ extern u32 auto_irqhandler_fixup[]; extern u32 user_irqhandler_fixup[]; extern u16 user_irqvec_fixup[]; +#ifndef CONFIG_GENERIC_HARDIRQS /* table for system interrupt handlers */ static struct irq_data *irq_list[NR_IRQS]; static struct irq_chip *irq_chip[NR_IRQS]; @@ -41,6 +42,8 @@ static inline int irq_set_chip(unsigned int irq, struct irq_chip *chip) irq_chip[irq] = chip; return 0; } +#define irq_set_chip_and_handler(irq, chip, dummy) irq_set_chip(irq, chip) +#endif /* !CONFIG_GENERIC_HARDIRQS */ static int m68k_first_user_vec; @@ -56,8 +59,10 @@ static struct irq_chip user_irq_chip = { .irq_shutdown = m68k_irq_shutdown, }; +#ifndef CONFIG_GENERIC_HARDIRQS #define NUM_IRQ_NODES 100 static struct irq_data nodes[NUM_IRQ_NODES]; +#endif /* !CONFIG_GENERIC_HARDIRQS */ /* * void init_IRQ(void) @@ -81,7 +86,7 @@ void __init init_IRQ(void) } for (i = IRQ_AUTO_1; i <= IRQ_AUTO_7; i++) - irq_set_chip(i, &auto_irq_chip); + irq_set_chip_and_handler(i, &auto_irq_chip, handle_simple_irq); mach_init_IRQ(); } @@ -128,6 +133,35 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, flush_icache(); } +#ifdef CONFIG_GENERIC_HARDIRQS + +/** + * m68k_setup_irq_controller + * @chip: irq chip which controls specified irq + * @handle: flow handler which handles specified irq + * @irq: first irq to be managed by the controller + * @cnt: number of irqs to be managed by the controller + * + * Change the controller for the specified range of irq, which will be used to + * manage these irq. auto/user irq already have a default controller, which can + * be changed as well, but the controller probably should use m68k_irq_startup/ + * m68k_irq_shutdown. + */ +void m68k_setup_irq_controller(struct irq_chip *chip, + irq_flow_handler_t handle, unsigned int irq, + unsigned int cnt) +{ + int i; + + for (i = 0; i < cnt; i++) { + irq_set_chip(irq + i, chip); + if (handle) + irq_set_handler(irq + i, handle); + } +} + +#else /* !CONFIG_GENERIC_HARDIRQS */ + /** * m68k_setup_irq_chip * @contr: irq controller which controls specified irq @@ -316,6 +350,8 @@ void disable_irq_nosync(unsigned int irq) __attribute__((alias("disable_irq"))); EXPORT_SYMBOL(disable_irq_nosync); +#endif /* !CONFIG_GENERIC_HARDIRQS */ + unsigned int m68k_irq_startup_irq(unsigned int irq) { if (irq <= IRQ_AUTO_7) @@ -341,6 +377,8 @@ void m68k_irq_shutdown(struct irq_data *data) } +#ifndef CONFIG_GENERIC_HARDIRQS + /* * Do we need these probe functions on the m68k? * @@ -367,6 +405,7 @@ int probe_irq_off (unsigned long irqs) } EXPORT_SYMBOL(probe_irq_off); +#endif /* CONFIG_GENERIC_HARDIRQS */ unsigned int irq_canonicalize(unsigned int irq) { @@ -379,6 +418,7 @@ unsigned int irq_canonicalize(unsigned int irq) EXPORT_SYMBOL(irq_canonicalize); +#ifndef CONFIG_GENERIC_HARDIRQS void generic_handle_irq(unsigned int irq) { struct irq_data *node; @@ -428,3 +468,13 @@ void init_irq_proc(void) /* Insert /proc/irq driver here */ } #endif + +#else /* CONFIG_GENERIC_HARDIRQS */ + +asmlinkage void handle_badint(struct pt_regs *regs) +{ + atomic_inc(&irq_err_count); + pr_warn("unexpected interrupt from %u\n", regs->vector); +} + +#endif /* CONFIG_GENERIC_HARDIRQS */ |