H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_HW_IRQ_H |
| 2 | #define _ASM_X86_HW_IRQ_H |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 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 | |
Thomas Gleixner | 9b7dc56 | 2008-05-02 20:10:09 +0200 | [diff] [blame] | 16 | #include <asm/irq_vectors.h> |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 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 | |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 28 | /* Interrupt handlers registered during init_IRQ */ |
| 29 | extern void apic_timer_interrupt(void); |
Dimitri Sivanich | acaabe7 | 2009-03-04 12:56:05 -0600 | [diff] [blame] | 30 | extern void generic_interrupt(void); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 31 | extern void error_interrupt(void); |
| 32 | extern void spurious_interrupt(void); |
| 33 | extern void thermal_interrupt(void); |
| 34 | extern void reschedule_interrupt(void); |
Andi Kleen | ccc3c31 | 2009-05-27 21:56:54 +0200 | [diff] [blame] | 35 | extern void mce_self_interrupt(void); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 36 | |
| 37 | extern void invalidate_interrupt(void); |
| 38 | extern void invalidate_interrupt0(void); |
| 39 | extern void invalidate_interrupt1(void); |
| 40 | extern void invalidate_interrupt2(void); |
| 41 | extern void invalidate_interrupt3(void); |
| 42 | extern void invalidate_interrupt4(void); |
| 43 | extern void invalidate_interrupt5(void); |
| 44 | extern void invalidate_interrupt6(void); |
| 45 | extern void invalidate_interrupt7(void); |
| 46 | |
| 47 | extern void irq_move_cleanup_interrupt(void); |
| 48 | extern void threshold_interrupt(void); |
| 49 | |
| 50 | extern void call_function_interrupt(void); |
Ingo Molnar | 1a781a7 | 2008-07-15 21:55:59 +0200 | [diff] [blame] | 51 | extern void call_function_single_interrupt(void); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 52 | |
| 53 | /* PIC specific functions */ |
| 54 | extern void disable_8259A_irq(unsigned int irq); |
| 55 | extern void enable_8259A_irq(unsigned int irq); |
| 56 | extern int i8259A_irq_pending(unsigned int irq); |
| 57 | extern void make_8259A_irq(unsigned int irq); |
| 58 | extern void init_8259A(int aeoi); |
| 59 | |
| 60 | /* IOAPIC */ |
Yinghai Lu | abcaa2b | 2009-02-08 16:18:03 -0800 | [diff] [blame] | 61 | #define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs)) |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 62 | extern unsigned long io_apic_irqs; |
| 63 | |
| 64 | extern void init_VISWS_APIC_irqs(void); |
| 65 | extern void setup_IO_APIC(void); |
| 66 | extern void disable_IO_APIC(void); |
Yinghai Lu | e519807 | 2009-05-15 13:05:16 -0700 | [diff] [blame] | 67 | |
| 68 | struct io_apic_irq_attr { |
| 69 | int ioapic; |
| 70 | int ioapic_pin; |
| 71 | int trigger; |
| 72 | int polarity; |
| 73 | }; |
| 74 | |
| 75 | static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr, |
| 76 | int ioapic, int ioapic_pin, |
| 77 | int trigger, int polarity) |
| 78 | { |
| 79 | irq_attr->ioapic = ioapic; |
| 80 | irq_attr->ioapic_pin = ioapic_pin; |
| 81 | irq_attr->trigger = trigger; |
| 82 | irq_attr->polarity = polarity; |
| 83 | } |
| 84 | |
Yinghai Lu | e20c06f | 2009-05-06 10:08:22 -0700 | [diff] [blame] | 85 | extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, |
Yinghai Lu | e519807 | 2009-05-15 13:05:16 -0700 | [diff] [blame] | 86 | struct io_apic_irq_attr *irq_attr); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 87 | extern void setup_ioapic_dest(void); |
| 88 | |
Thomas Gleixner | 97e7b6f | 2008-05-02 22:02:25 +0200 | [diff] [blame] | 89 | extern void enable_IO_APIC(void); |
Thomas Gleixner | 97e7b6f | 2008-05-02 22:02:25 +0200 | [diff] [blame] | 90 | |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 91 | /* Statistics */ |
| 92 | extern atomic_t irq_err_count; |
| 93 | extern atomic_t irq_mis_count; |
| 94 | |
Thomas Gleixner | 1a33195 | 2008-05-03 00:30:50 +0200 | [diff] [blame] | 95 | /* EISA */ |
| 96 | extern void eisa_set_level_irq(unsigned int irq); |
| 97 | |
Jaswinder Singh | 2b97df0 | 2008-07-23 17:13:14 +0530 | [diff] [blame] | 98 | /* SMP */ |
| 99 | extern void smp_apic_timer_interrupt(struct pt_regs *); |
Jaswinder Singh | 2b97df0 | 2008-07-23 17:13:14 +0530 | [diff] [blame] | 100 | extern void smp_spurious_interrupt(struct pt_regs *); |
| 101 | extern void smp_error_interrupt(struct pt_regs *); |
Ingo Molnar | 3e5095d | 2009-01-27 17:07:08 +0100 | [diff] [blame] | 102 | #ifdef CONFIG_SMP |
Jaswinder Singh | e7f08df | 2008-07-25 10:42:26 +0530 | [diff] [blame] | 103 | extern void smp_reschedule_interrupt(struct pt_regs *); |
| 104 | extern void smp_call_function_interrupt(struct pt_regs *); |
| 105 | extern void smp_call_function_single_interrupt(struct pt_regs *); |
Jaswinder Singh | b2139aa | 2008-07-25 11:32:38 +0530 | [diff] [blame] | 106 | #ifdef CONFIG_X86_32 |
| 107 | extern void smp_invalidate_interrupt(struct pt_regs *); |
| 108 | #else |
| 109 | extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *); |
| 110 | #endif |
Jaswinder Singh | e7f08df | 2008-07-25 10:42:26 +0530 | [diff] [blame] | 111 | #endif |
Jaswinder Singh | 2b97df0 | 2008-07-23 17:13:14 +0530 | [diff] [blame] | 112 | |
H. Peter Anvin | 4687518 | 2008-11-11 13:03:07 -0800 | [diff] [blame] | 113 | extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void); |
Eric W. Biederman | d388e5f | 2008-08-09 15:09:02 -0700 | [diff] [blame] | 114 | |
Yinghai Lu | 497c9a1 | 2008-08-19 20:50:28 -0700 | [diff] [blame] | 115 | typedef int vector_irq_t[NR_VECTORS]; |
| 116 | DECLARE_PER_CPU(vector_irq_t, vector_irq); |
| 117 | |
| 118 | #ifdef CONFIG_X86_IO_APIC |
Eric W. Biederman | d388e5f | 2008-08-09 15:09:02 -0700 | [diff] [blame] | 119 | extern void lock_vector_lock(void); |
| 120 | extern void unlock_vector_lock(void); |
| 121 | extern void __setup_vector_irq(int cpu); |
| 122 | #else |
| 123 | static inline void lock_vector_lock(void) {} |
| 124 | static inline void unlock_vector_lock(void) {} |
| 125 | static inline void __setup_vector_irq(int cpu) {} |
| 126 | #endif |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 127 | |
Thomas Gleixner | 22dc12d | 2008-05-02 22:10:39 +0200 | [diff] [blame] | 128 | #endif /* !ASSEMBLY_ */ |
| 129 | |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 130 | #endif /* _ASM_X86_HW_IRQ_H */ |