X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-i386%2Fmach-xen%2Fasm%2Fhw_irq.h;fp=include%2Fasm-i386%2Fmach-xen%2Fasm%2Fhw_irq.h;h=eecc6b6a0965a36ebc3999e8e46818977b940388;hb=1db395853d4f30d6120458bd279ede1f882a8525;hp=0000000000000000000000000000000000000000;hpb=34a75f0025b9cf803b6a88db032e6ad6950c9313;p=linux-2.6.git diff --git a/include/asm-i386/mach-xen/asm/hw_irq.h b/include/asm-i386/mach-xen/asm/hw_irq.h new file mode 100644 index 000000000..eecc6b6a0 --- /dev/null +++ b/include/asm-i386/mach-xen/asm/hw_irq.h @@ -0,0 +1,77 @@ +#ifndef _ASM_HW_IRQ_H +#define _ASM_HW_IRQ_H + +/* + * linux/include/asm/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 + * + */ + +#include +#include +#include +#include +#include + +struct hw_interrupt_type; + +/* + * Various low-level irq details needed by irq.c, process.c, + * time.c, io_apic.c and smp.c + * + * Interrupt entry/exit code at both C and assembly level + */ + +extern u8 irq_vector[NR_IRQ_VECTORS]; +#define IO_APIC_VECTOR(irq) (irq_vector[irq]) +#define AUTO_ASSIGN -1 + +extern void (*interrupt[NR_IRQS])(void); + +#ifdef CONFIG_SMP +fastcall void reschedule_interrupt(void); +fastcall void invalidate_interrupt(void); +fastcall void call_function_interrupt(void); +#endif + +#ifdef CONFIG_X86_LOCAL_APIC +fastcall void apic_timer_interrupt(void); +fastcall void error_interrupt(void); +fastcall void spurious_interrupt(void); +fastcall void thermal_interrupt(struct pt_regs *); +#define platform_legacy_irq(irq) ((irq) < 16) +#endif + +void disable_8259A_irq(unsigned int irq); +void enable_8259A_irq(unsigned int irq); +int i8259A_irq_pending(unsigned int irq); +void make_8259A_irq(unsigned int irq); +void init_8259A(int aeoi); +void FASTCALL(send_IPI_self(int vector)); +void init_VISWS_APIC_irqs(void); +void setup_IO_APIC(void); +void disable_IO_APIC(void); +void print_IO_APIC(void); +int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn); +void send_IPI(int dest, int vector); +void setup_ioapic_dest(void); + +extern unsigned long io_apic_irqs; + +extern atomic_t irq_err_count; +extern atomic_t irq_mis_count; + +#define IO_APIC_IRQ(x) (((x) >= 16) || ((1<<(x)) & io_apic_irqs)) + +extern void resend_irq_on_evtchn(struct hw_interrupt_type *h, unsigned int i); +static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) +{ + resend_irq_on_evtchn(h, i); +} + +#endif /* _ASM_HW_IRQ_H */