1 #ifndef _ASM_HW_IRQ_H 2 #define _ASM_HW_IRQ_H 3 4 /* 5 * linux/include/asm/hw_irq.h 6 * 7 * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar 8 * 9 * moved some of the old arch/i386/kernel/irq.h to here. VY 10 * 11 * IRQ/IPI changes taken from work by Thomas Radke 12 * <tomsoft (at) informatik.tu-chemnitz.de> 13 */ 14 15 #include <linux/profile.h> 16 #include <asm/atomic.h> 17 #include <asm/irq.h> 18 #include <asm/sections.h> 19 20 #define NMI_VECTOR 0x02 21 22 /* 23 * Various low-level irq details needed by irq.c, process.c, 24 * time.c, io_apic.c and smp.c 25 * 26 * Interrupt entry/exit code at both C and assembly level 27 */ 28 29 extern void (*interrupt[NR_IRQS])(void); 30 31 #ifdef CONFIG_SMP 32 fastcall void reschedule_interrupt(void); 33 fastcall void invalidate_interrupt(void); 34 fastcall void call_function_interrupt(void); 35 #endif 36 37 #ifdef CONFIG_X86_LOCAL_APIC 38 fastcall void apic_timer_interrupt(void); 39 fastcall void error_interrupt(void); 40 fastcall void spurious_interrupt(void); 41 fastcall void thermal_interrupt(void); 42 #define platform_legacy_irq(irq) ((irq) < 16) 43 #endif 44 45 void disable_8259A_irq(unsigned int irq); 46 void enable_8259A_irq(unsigned int irq); 47 int i8259A_irq_pending(unsigned int irq); 48 void make_8259A_irq(unsigned int irq); 49 void init_8259A(int aeoi); 50 void FASTCALL(send_IPI_self(int vector)); 51 void init_VISWS_APIC_irqs(void); 52 void setup_IO_APIC(void); 53 void disable_IO_APIC(void); 54 void print_IO_APIC(void); 55 int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn); 56 void send_IPI(int dest, int vector); 57 void setup_ioapic_dest(void); 58 59 extern unsigned long io_apic_irqs; 60 61 extern atomic_t irq_err_count; 62 extern atomic_t irq_mis_count; 63 64 #define IO_APIC_IRQ(x) (((x) >= 16) || ((1<<(x)) & io_apic_irqs)) 65 66 #endif /* _ASM_HW_IRQ_H */ 67
