1 /* -*- mode: c; c-basic-offset: 8 -*- */
5 * Author: James.Bottomley@HansenPartnership.com
7 * linux/arch/i386/voyager/irq_vectors.h
9 * This file provides definitions for the VIC and QIC CPIs
12 #ifndef _ASM_IRQ_VECTORS_H
13 #define _ASM_IRQ_VECTORS_H
16 * IDT vectors usable for external interrupt sources start
19 #define FIRST_EXTERNAL_VECTOR 0x20
21 #define SYSCALL_VECTOR 0x80
24 * Vectors 0x20-0x2f are used for ISA interrupts.
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 #define VIC_CALL_FUNCTION_SINGLE_CPI 7
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)
46 #define QIC_CALL_FUNCTION_SINGLE_CPI (VIC_CALL_FUNCTION_SINGLE_CPI - QIC_CPI_OFFSET)
48 #define VIC_START_FAKE_CPI VIC_TIMER_CPI
49 #define VIC_END_FAKE_CPI VIC_CALL_FUNCTION_SINGLE_CPI
51 /* this is the SYS_INT CPI. */
53 #define VIC_CMN_INT 15
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)
60 #define NR_VECTORS 256
62 #define NR_IRQ_VECTORS NR_IRQS
66 #define FIRST_VM86_IRQ 3
67 #define LAST_VM86_IRQ 15
68 #define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15)
71 extern asmlinkage void vic_cpi_interrupt(void);
72 extern asmlinkage void vic_sys_interrupt(void);
73 extern asmlinkage void vic_cmn_interrupt(void);
74 extern asmlinkage void qic_timer_interrupt(void);
75 extern asmlinkage void qic_invalidate_interrupt(void);
76 extern asmlinkage void qic_reschedule_interrupt(void);
77 extern asmlinkage void qic_enable_irq_interrupt(void);
78 extern asmlinkage void qic_call_function_interrupt(void);
79 #endif /* !__ASSEMBLY__ */
81 #endif /* _ASM_IRQ_VECTORS_H */