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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* -*- 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
Jens Axboe3b16cf82008-06-26 11:21:54 +020036#define VIC_CALL_FUNCTION_SINGLE_CPI 7
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
38/* Now the QIC CPIs: Since we don't need the two initial levels,
39 * these are 2 less than the VIC CPIs */
40#define QIC_CPI_OFFSET 1
41#define QIC_TIMER_CPI (VIC_TIMER_CPI - QIC_CPI_OFFSET)
42#define QIC_INVALIDATE_CPI (VIC_INVALIDATE_CPI - QIC_CPI_OFFSET)
43#define QIC_RESCHEDULE_CPI (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET)
44#define QIC_ENABLE_IRQ_CPI (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET)
45#define QIC_CALL_FUNCTION_CPI (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET)
Jens Axboe3b16cf82008-06-26 11:21:54 +020046#define QIC_CALL_FUNCTION_SINGLE_CPI (VIC_CALL_FUNCTION_SINGLE_CPI - QIC_CPI_OFFSET)
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
48#define VIC_START_FAKE_CPI VIC_TIMER_CPI
Jens Axboe3b16cf82008-06-26 11:21:54 +020049#define VIC_END_FAKE_CPI VIC_CALL_FUNCTION_SINGLE_CPI
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
51/* this is the SYS_INT CPI. */
52#define VIC_SYS_INT 8
53#define VIC_CMN_INT 15
54
55/* This is the boot CPI for alternate processors. It gets overwritten
56 * by the above once the system has activated all available processors */
57#define VIC_CPU_BOOT_CPI VIC_CPI_LEVEL0
58#define VIC_CPU_BOOT_ERRATA_CPI (VIC_CPI_LEVEL0 + 8)
59
60#define NR_VECTORS 256
61#define NR_IRQS 224
62#define NR_IRQ_VECTORS NR_IRQS
63
64#define FPU_IRQ 13
65
66#define FIRST_VM86_IRQ 3
67#define LAST_VM86_IRQ 15
68#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15)
69
70#ifndef __ASSEMBLY__
71extern asmlinkage void vic_cpi_interrupt(void);
72extern asmlinkage void vic_sys_interrupt(void);
73extern asmlinkage void vic_cmn_interrupt(void);
74extern asmlinkage void qic_timer_interrupt(void);
75extern asmlinkage void qic_invalidate_interrupt(void);
76extern asmlinkage void qic_reschedule_interrupt(void);
77extern asmlinkage void qic_enable_irq_interrupt(void);
78extern asmlinkage void qic_call_function_interrupt(void);
79#endif /* !__ASSEMBLY__ */
80
81#endif /* _ASM_IRQ_VECTORS_H */