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 | 4a4de9c | 2009-10-14 09:22:57 -0500 | [diff] [blame] | 30 | extern void x86_platform_ipi(void); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 31 | extern void error_interrupt(void); |
Peter Zijlstra | e360adb | 2010-10-14 14:01:34 +0800 | [diff] [blame] | 32 | extern void irq_work_interrupt(void); |
Ingo Molnar | 241771e | 2008-12-03 10:39:53 +0100 | [diff] [blame] | 33 | |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 34 | extern void spurious_interrupt(void); |
| 35 | extern void thermal_interrupt(void); |
| 36 | extern void reschedule_interrupt(void); |
Andi Kleen | ccc3c31 | 2009-05-27 21:56:54 +0200 | [diff] [blame] | 37 | extern void mce_self_interrupt(void); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 38 | |
| 39 | extern void invalidate_interrupt(void); |
| 40 | extern void invalidate_interrupt0(void); |
| 41 | extern void invalidate_interrupt1(void); |
| 42 | extern void invalidate_interrupt2(void); |
| 43 | extern void invalidate_interrupt3(void); |
| 44 | extern void invalidate_interrupt4(void); |
| 45 | extern void invalidate_interrupt5(void); |
| 46 | extern void invalidate_interrupt6(void); |
| 47 | extern void invalidate_interrupt7(void); |
| 48 | |
| 49 | extern void irq_move_cleanup_interrupt(void); |
Andi Kleen | 4ef702c | 2009-05-27 21:56:52 +0200 | [diff] [blame] | 50 | extern void reboot_interrupt(void); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 51 | extern void threshold_interrupt(void); |
| 52 | |
| 53 | extern void call_function_interrupt(void); |
Ingo Molnar | 1a781a7 | 2008-07-15 21:55:59 +0200 | [diff] [blame] | 54 | extern void call_function_single_interrupt(void); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 55 | |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 56 | /* IOAPIC */ |
Yinghai Lu | abcaa2b | 2009-02-08 16:18:03 -0800 | [diff] [blame] | 57 | #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] | 58 | extern unsigned long io_apic_irqs; |
| 59 | |
| 60 | extern void init_VISWS_APIC_irqs(void); |
| 61 | extern void setup_IO_APIC(void); |
| 62 | extern void disable_IO_APIC(void); |
Yinghai Lu | e519807 | 2009-05-15 13:05:16 -0700 | [diff] [blame] | 63 | |
| 64 | struct io_apic_irq_attr { |
| 65 | int ioapic; |
| 66 | int ioapic_pin; |
| 67 | int trigger; |
| 68 | int polarity; |
| 69 | }; |
| 70 | |
| 71 | static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr, |
| 72 | int ioapic, int ioapic_pin, |
| 73 | int trigger, int polarity) |
| 74 | { |
Dimitri Sivanich | 9338ad6 | 2009-10-13 15:32:36 -0500 | [diff] [blame] | 75 | irq_attr->ioapic = ioapic; |
| 76 | irq_attr->ioapic_pin = ioapic_pin; |
| 77 | irq_attr->trigger = trigger; |
| 78 | irq_attr->polarity = polarity; |
Yinghai Lu | e519807 | 2009-05-15 13:05:16 -0700 | [diff] [blame] | 79 | } |
| 80 | |
Thomas Gleixner | 423f085 | 2010-10-10 11:39:09 +0200 | [diff] [blame] | 81 | struct irq_2_iommu { |
| 82 | struct intel_iommu *iommu; |
| 83 | u16 irte_index; |
| 84 | u16 sub_handle; |
| 85 | u8 irte_mask; |
| 86 | }; |
| 87 | |
Dimitri Sivanich | 9338ad6 | 2009-10-13 15:32:36 -0500 | [diff] [blame] | 88 | /* |
| 89 | * This is performance-critical, we want to do it O(1) |
| 90 | * |
| 91 | * Most irqs are mapped 1:1 with pins. |
| 92 | */ |
| 93 | struct irq_cfg { |
| 94 | struct irq_pin_list *irq_2_pin; |
| 95 | cpumask_var_t domain; |
| 96 | cpumask_var_t old_domain; |
Dimitri Sivanich | 9338ad6 | 2009-10-13 15:32:36 -0500 | [diff] [blame] | 97 | u8 vector; |
| 98 | u8 move_in_progress : 1; |
Thomas Gleixner | 423f085 | 2010-10-10 11:39:09 +0200 | [diff] [blame] | 99 | #ifdef CONFIG_INTR_REMAP |
| 100 | struct irq_2_iommu irq_2_iommu; |
| 101 | #endif |
Dimitri Sivanich | 9338ad6 | 2009-10-13 15:32:36 -0500 | [diff] [blame] | 102 | }; |
| 103 | |
Dimitri Sivanich | 9338ad6 | 2009-10-13 15:32:36 -0500 | [diff] [blame] | 104 | extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *); |
| 105 | extern void send_cleanup_vector(struct irq_cfg *); |
Ingo Molnar | 7ec1318 | 2009-10-14 15:06:42 +0200 | [diff] [blame] | 106 | |
Thomas Gleixner | f7e909e | 2010-10-08 21:40:23 +0200 | [diff] [blame] | 107 | struct irq_data; |
| 108 | int __ioapic_set_affinity(struct irq_data *, const struct cpumask *, |
| 109 | unsigned int *dest_id); |
Dimitri Sivanich | 9338ad6 | 2009-10-13 15:32:36 -0500 | [diff] [blame] | 110 | extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr); |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 111 | extern void setup_ioapic_dest(void); |
| 112 | |
Thomas Gleixner | 97e7b6f | 2008-05-02 22:02:25 +0200 | [diff] [blame] | 113 | extern void enable_IO_APIC(void); |
Thomas Gleixner | 97e7b6f | 2008-05-02 22:02:25 +0200 | [diff] [blame] | 114 | |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 115 | /* Statistics */ |
| 116 | extern atomic_t irq_err_count; |
| 117 | extern atomic_t irq_mis_count; |
| 118 | |
Thomas Gleixner | 1a33195 | 2008-05-03 00:30:50 +0200 | [diff] [blame] | 119 | /* EISA */ |
| 120 | extern void eisa_set_level_irq(unsigned int irq); |
| 121 | |
Jaswinder Singh | 2b97df0 | 2008-07-23 17:13:14 +0530 | [diff] [blame] | 122 | /* SMP */ |
| 123 | extern void smp_apic_timer_interrupt(struct pt_regs *); |
Jaswinder Singh | 2b97df0 | 2008-07-23 17:13:14 +0530 | [diff] [blame] | 124 | extern void smp_spurious_interrupt(struct pt_regs *); |
Dimitri Sivanich | 4a4de9c | 2009-10-14 09:22:57 -0500 | [diff] [blame] | 125 | extern void smp_x86_platform_ipi(struct pt_regs *); |
Jaswinder Singh | 2b97df0 | 2008-07-23 17:13:14 +0530 | [diff] [blame] | 126 | extern void smp_error_interrupt(struct pt_regs *); |
Jaswinder Singh Rajput | 2c1b284 | 2009-04-11 00:03:10 +0530 | [diff] [blame] | 127 | #ifdef CONFIG_X86_IO_APIC |
| 128 | extern asmlinkage void smp_irq_move_cleanup_interrupt(void); |
| 129 | #endif |
Ingo Molnar | 3e5095d | 2009-01-27 17:07:08 +0100 | [diff] [blame] | 130 | #ifdef CONFIG_SMP |
Jaswinder Singh | e7f08df | 2008-07-25 10:42:26 +0530 | [diff] [blame] | 131 | extern void smp_reschedule_interrupt(struct pt_regs *); |
| 132 | extern void smp_call_function_interrupt(struct pt_regs *); |
| 133 | extern void smp_call_function_single_interrupt(struct pt_regs *); |
Jaswinder Singh | b2139aa | 2008-07-25 11:32:38 +0530 | [diff] [blame] | 134 | #ifdef CONFIG_X86_32 |
| 135 | extern void smp_invalidate_interrupt(struct pt_regs *); |
| 136 | #else |
| 137 | extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *); |
| 138 | #endif |
Jaswinder Singh | e7f08df | 2008-07-25 10:42:26 +0530 | [diff] [blame] | 139 | #endif |
Jaswinder Singh | 2b97df0 | 2008-07-23 17:13:14 +0530 | [diff] [blame] | 140 | |
H. Peter Anvin | 4687518 | 2008-11-11 13:03:07 -0800 | [diff] [blame] | 141 | extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void); |
Eric W. Biederman | d388e5f | 2008-08-09 15:09:02 -0700 | [diff] [blame] | 142 | |
Yinghai Lu | 497c9a1 | 2008-08-19 20:50:28 -0700 | [diff] [blame] | 143 | typedef int vector_irq_t[NR_VECTORS]; |
| 144 | DECLARE_PER_CPU(vector_irq_t, vector_irq); |
Suresh Siddha | 36e9e1e | 2010-03-15 14:33:06 -0800 | [diff] [blame] | 145 | extern void setup_vector_irq(int cpu); |
Yinghai Lu | 497c9a1 | 2008-08-19 20:50:28 -0700 | [diff] [blame] | 146 | |
| 147 | #ifdef CONFIG_X86_IO_APIC |
Eric W. Biederman | d388e5f | 2008-08-09 15:09:02 -0700 | [diff] [blame] | 148 | extern void lock_vector_lock(void); |
| 149 | extern void unlock_vector_lock(void); |
| 150 | extern void __setup_vector_irq(int cpu); |
| 151 | #else |
| 152 | static inline void lock_vector_lock(void) {} |
| 153 | static inline void unlock_vector_lock(void) {} |
| 154 | static inline void __setup_vector_irq(int cpu) {} |
| 155 | #endif |
Thomas Gleixner | 2e08843 | 2008-05-02 19:00:30 +0200 | [diff] [blame] | 156 | |
Thomas Gleixner | 22dc12d | 2008-05-02 22:10:39 +0200 | [diff] [blame] | 157 | #endif /* !ASSEMBLY_ */ |
| 158 | |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 159 | #endif /* _ASM_X86_HW_IRQ_H */ |