aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-i386/mach-visws/irq_vectors.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/mach-visws/irq_vectors.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-i386/mach-visws/irq_vectors.h')
-rw-r--r--include/asm-i386/mach-visws/irq_vectors.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/include/asm-i386/mach-visws/irq_vectors.h b/include/asm-i386/mach-visws/irq_vectors.h
new file mode 100644
index 000000000000..cb572d8db505
--- /dev/null
+++ b/include/asm-i386/mach-visws/irq_vectors.h
@@ -0,0 +1,62 @@
1#ifndef _ASM_IRQ_VECTORS_H
2#define _ASM_IRQ_VECTORS_H
3
4/*
5 * IDT vectors usable for external interrupt sources start
6 * at 0x20:
7 */
8#define FIRST_EXTERNAL_VECTOR 0x20
9
10#define SYSCALL_VECTOR 0x80
11
12/*
13 * Vectors 0x20-0x2f are used for ISA interrupts.
14 */
15
16/*
17 * Special IRQ vectors used by the SMP architecture, 0xf0-0xff
18 *
19 * some of the following vectors are 'rare', they are merged
20 * into a single vector (CALL_FUNCTION_VECTOR) to save vector space.
21 * TLB, reschedule and local APIC vectors are performance-critical.
22 *
23 * Vectors 0xf0-0xfa are free (reserved for future Linux use).
24 */
25#define SPURIOUS_APIC_VECTOR 0xff
26#define ERROR_APIC_VECTOR 0xfe
27#define INVALIDATE_TLB_VECTOR 0xfd
28#define RESCHEDULE_VECTOR 0xfc
29#define CALL_FUNCTION_VECTOR 0xfb
30
31#define THERMAL_APIC_VECTOR 0xf0
32/*
33 * Local APIC timer IRQ vector is on a different priority level,
34 * to work around the 'lost local interrupt if more than 2 IRQ
35 * sources per level' errata.
36 */
37#define LOCAL_TIMER_VECTOR 0xef
38
39/*
40 * First APIC vector available to drivers: (vectors 0x30-0xee)
41 * we start at 0x31 to spread out vectors evenly between priority
42 * levels. (0x80 is the syscall vector)
43 */
44#define FIRST_DEVICE_VECTOR 0x31
45#define FIRST_SYSTEM_VECTOR 0xef
46
47#define TIMER_IRQ 0
48
49/*
50 * IRQ definitions
51 */
52#define NR_VECTORS 256
53#define NR_IRQS 224
54#define NR_IRQ_VECTORS NR_IRQS
55
56#define FPU_IRQ 13
57
58#define FIRST_VM86_IRQ 3
59#define LAST_VM86_IRQ 15
60#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15)
61
62#endif /* _ASM_IRQ_VECTORS_H */