| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |