| #ifndef _ASM_X86_HW_IRQ_H |
| #define _ASM_X86_HW_IRQ_H |
| |
| /* |
| * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar |
| * |
| * moved some of the old arch/i386/kernel/irq.h to here. VY |
| * |
| * IRQ/IPI changes taken from work by Thomas Radke |
| * <tomsoft@informatik.tu-chemnitz.de> |
| * |
| * hacked by Andi Kleen for x86-64. |
| * unified by tglx |
| */ |
| |
| #include <asm/irq_vectors.h> |
| |
| #ifndef __ASSEMBLY__ |
| |
| #include <linux/percpu.h> |
| #include <linux/profile.h> |
| #include <linux/smp.h> |
| |
| #include <asm/atomic.h> |
| #include <asm/irq.h> |
| #include <asm/sections.h> |
| |
| /* Interrupt handlers registered during init_IRQ */ |
| extern void apic_timer_interrupt(void); |
| extern void generic_interrupt(void); |
| extern void error_interrupt(void); |
| extern void spurious_interrupt(void); |
| extern void thermal_interrupt(void); |
| extern void reschedule_interrupt(void); |
| |
| extern void invalidate_interrupt(void); |
| extern void invalidate_interrupt0(void); |
| extern void invalidate_interrupt1(void); |
| extern void invalidate_interrupt2(void); |
| extern void invalidate_interrupt3(void); |
| extern void invalidate_interrupt4(void); |
| extern void invalidate_interrupt5(void); |
| extern void invalidate_interrupt6(void); |
| extern void invalidate_interrupt7(void); |
| |
| extern void irq_move_cleanup_interrupt(void); |
| extern void threshold_interrupt(void); |
| |
| extern void call_function_interrupt(void); |
| extern void call_function_single_interrupt(void); |
| |
| /* PIC specific functions */ |
| extern void disable_8259A_irq(unsigned int irq); |
| extern void enable_8259A_irq(unsigned int irq); |
| extern int i8259A_irq_pending(unsigned int irq); |
| extern void make_8259A_irq(unsigned int irq); |
| extern void init_8259A(int aeoi); |
| |
| /* IOAPIC */ |
| #define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs)) |
| extern unsigned long io_apic_irqs; |
| |
| extern void init_VISWS_APIC_irqs(void); |
| extern void setup_IO_APIC(void); |
| extern void disable_IO_APIC(void); |
| extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn); |
| extern void setup_ioapic_dest(void); |
| |
| extern void enable_IO_APIC(void); |
| |
| /* Statistics */ |
| extern atomic_t irq_err_count; |
| extern atomic_t irq_mis_count; |
| |
| /* EISA */ |
| extern void eisa_set_level_irq(unsigned int irq); |
| |
| /* SMP */ |
| extern void smp_apic_timer_interrupt(struct pt_regs *); |
| extern void smp_spurious_interrupt(struct pt_regs *); |
| extern void smp_error_interrupt(struct pt_regs *); |
| #ifdef CONFIG_SMP |
| extern void smp_reschedule_interrupt(struct pt_regs *); |
| extern void smp_call_function_interrupt(struct pt_regs *); |
| extern void smp_call_function_single_interrupt(struct pt_regs *); |
| #ifdef CONFIG_X86_32 |
| extern void smp_invalidate_interrupt(struct pt_regs *); |
| #else |
| extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *); |
| #endif |
| #endif |
| |
| extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void); |
| |
| typedef int vector_irq_t[NR_VECTORS]; |
| DECLARE_PER_CPU(vector_irq_t, vector_irq); |
| |
| #ifdef CONFIG_X86_IO_APIC |
| extern void lock_vector_lock(void); |
| extern void unlock_vector_lock(void); |
| extern void __setup_vector_irq(int cpu); |
| #else |
| static inline void lock_vector_lock(void) {} |
| static inline void unlock_vector_lock(void) {} |
| static inline void __setup_vector_irq(int cpu) {} |
| #endif |
| |
| #endif /* !ASSEMBLY_ */ |
| |
| #endif /* _ASM_X86_HW_IRQ_H */ |
