[mirror_ubuntu-bionic-kernel.git] / arch / x86 / include / asm / hw_irq.h

#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 devfn, int pin,
					int *ioapic, int *ioapic_pin,
					int *trigger, int *polarity);
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 */
Commit	Line	Data
1965aae3 PA	1	#ifndef _ASM_X86_HW_IRQ_H
1965aae3 PA	2	#define _ASM_X86_HW_IRQ_H
2e088436 TG	3
	4	/*
	5	* (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
	6	*
	7	* moved some of the old arch/i386/kernel/irq.h to here. VY
	8	*
	9	* IRQ/IPI changes taken from work by Thomas Radke
	10	* <tomsoft@informatik.tu-chemnitz.de>
	11	*
	12	* hacked by Andi Kleen for x86-64.
	13	* unified by tglx
	14	*/
	15
9b7dc567	16	#include <asm/irq_vectors.h>
2e088436 TG	17
	18	#ifndef __ASSEMBLY__
	19
	20	#include <linux/percpu.h>
	21	#include <linux/profile.h>
	22	#include <linux/smp.h>
	23
	24	#include <asm/atomic.h>
	25	#include <asm/irq.h>
	26	#include <asm/sections.h>
	27
2e088436 TG	28	/* Interrupt handlers registered during init_IRQ */
2e088436 TG	29	extern void apic_timer_interrupt(void);
acaabe79	30	extern void generic_interrupt(void);
2e088436 TG	31	extern void error_interrupt(void);
	32	extern void spurious_interrupt(void);
	33	extern void thermal_interrupt(void);
	34	extern void reschedule_interrupt(void);
	35
	36	extern void invalidate_interrupt(void);
	37	extern void invalidate_interrupt0(void);
	38	extern void invalidate_interrupt1(void);
	39	extern void invalidate_interrupt2(void);
	40	extern void invalidate_interrupt3(void);
	41	extern void invalidate_interrupt4(void);
	42	extern void invalidate_interrupt5(void);
	43	extern void invalidate_interrupt6(void);
	44	extern void invalidate_interrupt7(void);
	45
	46	extern void irq_move_cleanup_interrupt(void);
	47	extern void threshold_interrupt(void);
	48
	49	extern void call_function_interrupt(void);
1a781a77	50	extern void call_function_single_interrupt(void);
2e088436 TG	51
	52	/* PIC specific functions */
	53	extern void disable_8259A_irq(unsigned int irq);
	54	extern void enable_8259A_irq(unsigned int irq);
	55	extern int i8259A_irq_pending(unsigned int irq);
	56	extern void make_8259A_irq(unsigned int irq);
	57	extern void init_8259A(int aeoi);
	58
	59	/* IOAPIC */
abcaa2b8	60	#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) \|\| ((1<<(x)) & io_apic_irqs))
2e088436 TG	61	extern unsigned long io_apic_irqs;
	62
	63	extern void init_VISWS_APIC_irqs(void);
	64	extern void setup_IO_APIC(void);
	65	extern void disable_IO_APIC(void);
e20c06fd YL	66	extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin,
	67	int ioapic, int ioapic_pin,
	68	int trigger, int polarity);
2e088436 TG	69	extern void setup_ioapic_dest(void);
2e088436 TG	70
97e7b6f5	71	extern void enable_IO_APIC(void);
97e7b6f5	72
2e088436 TG	73	/* Statistics */
	74	extern atomic_t irq_err_count;
	75	extern atomic_t irq_mis_count;
	76
1a331957 TG	77	/* EISA */
	78	extern void eisa_set_level_irq(unsigned int irq);
	79
2b97df06 JS	80	/* SMP */
2b97df06 JS	81	extern void smp_apic_timer_interrupt(struct pt_regs *);
2b97df06 JS	82	extern void smp_spurious_interrupt(struct pt_regs *);
2b97df06 JS	83	extern void smp_error_interrupt(struct pt_regs *);
3e5095d1	84	#ifdef CONFIG_SMP
e7f08dfd JS	85	extern void smp_reschedule_interrupt(struct pt_regs *);
	86	extern void smp_call_function_interrupt(struct pt_regs *);
	87	extern void smp_call_function_single_interrupt(struct pt_regs *);
b2139aa0 JS	88	#ifdef CONFIG_X86_32
	89	extern void smp_invalidate_interrupt(struct pt_regs *);
	90	#else
	91	extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
	92	#endif
e7f08dfd	93	#endif
2b97df06	94
4687518c	95	extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
497c9a19	96
22dc12d1 TG	97	typedef int vector_irq_t[NR_VECTORS];
22dc12d1 TG	98	DECLARE_PER_CPU(vector_irq_t, vector_irq);
d388e5fd	99
497c9a19	100	#ifdef CONFIG_X86_IO_APIC
d388e5fd EB	101	extern void lock_vector_lock(void);
	102	extern void unlock_vector_lock(void);
	103	extern void __setup_vector_irq(int cpu);
	104	#else
	105	static inline void lock_vector_lock(void) {}
	106	static inline void unlock_vector_lock(void) {}
	107	static inline void __setup_vector_irq(int cpu) {}
	108	#endif
2e088436	109
22dc12d1 TG	110	#endif /* !ASSEMBLY_ */
22dc12d1 TG	111
1965aae3	112	#endif /* _ASM_X86_HW_IRQ_H */