include/asm-i386/mach-voyager/irq_vectors.h

   1 /* -*- mode: c; c-basic-offset: 8 -*- */
   2
   3 /* Copyright (C) 2002
   4  *
   5  * Author: James.Bottomley@HansenPartnership.com
   6  *
   7  * linux/arch/i386/voyager/irq_vectors.h
   8  *
   9  * This file provides definitions for the VIC and QIC CPIs
  10  */
  11
  12 #ifndef _ASM_IRQ_VECTORS_H
  13 #define _ASM_IRQ_VECTORS_H
  14
  15 /*
  16  * IDT vectors usable for external interrupt sources start
  17  * at 0x20:
  18  */
  19 #define FIRST_EXTERNAL_VECTOR   0x20
  20
  21 #define SYSCALL_VECTOR          0x80
  22
  23 /*
  24  * Vectors 0x20-0x2f are used for ISA interrupts.
  25  */
  26
  27 /* These define the CPIs we use in linux */
  28 #define VIC_CPI_LEVEL0                  0
  29 #define VIC_CPI_LEVEL1                  1
  30 /* now the fake CPIs */
  31 #define VIC_TIMER_CPI                   2
  32 #define VIC_INVALIDATE_CPI              3
  33 #define VIC_RESCHEDULE_CPI              4
  34 #define VIC_ENABLE_IRQ_CPI              5
  35 #define VIC_CALL_FUNCTION_CPI           6
  36
  37 /* Now the QIC CPIs:  Since we don't need the two initial levels,
  38  * these are 2 less than the VIC CPIs */
  39 #define QIC_CPI_OFFSET                  1
  40 #define QIC_TIMER_CPI                   (VIC_TIMER_CPI - QIC_CPI_OFFSET)
  41 #define QIC_INVALIDATE_CPI              (VIC_INVALIDATE_CPI - QIC_CPI_OFFSET)
  42 #define QIC_RESCHEDULE_CPI              (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET)
  43 #define QIC_ENABLE_IRQ_CPI              (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET)
  44 #define QIC_CALL_FUNCTION_CPI           (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET)
  45
  46 #define VIC_START_FAKE_CPI              VIC_TIMER_CPI
  47 #define VIC_END_FAKE_CPI                VIC_CALL_FUNCTION_CPI
  48
  49 /* this is the SYS_INT CPI. */
  50 #define VIC_SYS_INT                     8
  51 #define VIC_CMN_INT                     15
  52
  53 /* This is the boot CPI for alternate processors.  It gets overwritten
  54  * by the above once the system has activated all available processors */
  55 #define VIC_CPU_BOOT_CPI                VIC_CPI_LEVEL0
  56 #define VIC_CPU_BOOT_ERRATA_CPI         (VIC_CPI_LEVEL0 + 8)
  57
  58 #define NR_VECTORS 256
  59 #define NR_IRQS 224
  60 #define NR_IRQ_VECTORS NR_IRQS
  61
  62 #define FPU_IRQ                         13
  63
  64 #define FIRST_VM86_IRQ          3
  65 #define LAST_VM86_IRQ           15
  66 #define invalid_vm86_irq(irq)   ((irq) < 3 || (irq) > 15)
  67
  68 #ifndef __ASSEMBLY__
  69 extern asmlinkage void vic_cpi_interrupt(void);
  70 extern asmlinkage void vic_sys_interrupt(void);
  71 extern asmlinkage void vic_cmn_interrupt(void);
  72 extern asmlinkage void qic_timer_interrupt(void);
  73 extern asmlinkage void qic_invalidate_interrupt(void);
  74 extern asmlinkage void qic_reschedule_interrupt(void);
  75 extern asmlinkage void qic_enable_irq_interrupt(void);
  76 extern asmlinkage void qic_call_function_interrupt(void);
  77 #endif /* !__ASSEMBLY__ */
  78
  79 #endif /* _ASM_IRQ_VECTORS_H */