Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _ALPHA_IRQ_H |
2 | #define _ALPHA_IRQ_H | |
3 | ||
4 | /* | |
5 | * linux/include/alpha/irq.h | |
6 | * | |
7 | * (C) 1994 Linus Torvalds | |
8 | */ | |
9 | ||
10 | #include <linux/linkage.h> | |
1da177e4 LT |
11 | |
12 | #if defined(CONFIG_ALPHA_GENERIC) | |
13 | ||
14 | /* Here NR_IRQS is not exact, but rather an upper bound. This is used | |
15 | many places throughout the kernel to size static arrays. That's ok, | |
16 | we'll use alpha_mv.nr_irqs when we want the real thing. */ | |
17 | ||
18 | /* When LEGACY_START_ADDRESS is selected, we leave out: | |
19 | TITAN | |
20 | WILDFIRE | |
21 | MARVEL | |
22 | ||
23 | This helps keep the kernel object size reasonable for the majority | |
24 | of machines. | |
25 | */ | |
26 | ||
27 | # if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS) | |
28 | # define NR_IRQS (128) /* max is RAWHIDE/TAKARA */ | |
29 | # else | |
30 | # define NR_IRQS (32768 + 16) /* marvel - 32 pids */ | |
31 | # endif | |
32 | ||
33 | #elif defined(CONFIG_ALPHA_CABRIOLET) || \ | |
34 | defined(CONFIG_ALPHA_EB66P) || \ | |
35 | defined(CONFIG_ALPHA_EB164) || \ | |
36 | defined(CONFIG_ALPHA_PC164) || \ | |
37 | defined(CONFIG_ALPHA_LX164) | |
38 | # define NR_IRQS 35 | |
39 | ||
40 | #elif defined(CONFIG_ALPHA_EB66) || \ | |
41 | defined(CONFIG_ALPHA_EB64P) || \ | |
42 | defined(CONFIG_ALPHA_MIKASA) | |
43 | # define NR_IRQS 32 | |
44 | ||
45 | #elif defined(CONFIG_ALPHA_ALCOR) || \ | |
46 | defined(CONFIG_ALPHA_MIATA) || \ | |
47 | defined(CONFIG_ALPHA_RUFFIAN) || \ | |
48 | defined(CONFIG_ALPHA_RX164) || \ | |
49 | defined(CONFIG_ALPHA_NORITAKE) | |
50 | # define NR_IRQS 48 | |
51 | ||
52 | #elif defined(CONFIG_ALPHA_SABLE) || \ | |
53 | defined(CONFIG_ALPHA_SX164) | |
54 | # define NR_IRQS 40 | |
55 | ||
56 | #elif defined(CONFIG_ALPHA_DP264) || \ | |
57 | defined(CONFIG_ALPHA_LYNX) || \ | |
58 | defined(CONFIG_ALPHA_SHARK) || \ | |
59 | defined(CONFIG_ALPHA_EIGER) | |
60 | # define NR_IRQS 64 | |
61 | ||
62 | #elif defined(CONFIG_ALPHA_TITAN) | |
63 | #define NR_IRQS 80 | |
64 | ||
65 | #elif defined(CONFIG_ALPHA_RAWHIDE) || \ | |
66 | defined(CONFIG_ALPHA_TAKARA) | |
67 | # define NR_IRQS 128 | |
68 | ||
69 | #elif defined(CONFIG_ALPHA_WILDFIRE) | |
70 | # define NR_IRQS 2048 /* enuff for 8 QBBs */ | |
71 | ||
72 | #elif defined(CONFIG_ALPHA_MARVEL) | |
73 | # define NR_IRQS (32768 + 16) /* marvel - 32 pids*/ | |
74 | ||
75 | #else /* everyone else */ | |
76 | # define NR_IRQS 16 | |
77 | #endif | |
78 | ||
79 | static __inline__ int irq_canonicalize(int irq) | |
80 | { | |
81 | /* | |
82 | * XXX is this true for all Alpha's? The old serial driver | |
83 | * did it this way for years without any complaints, so.... | |
84 | */ | |
85 | return ((irq == 2) ? 9 : irq); | |
86 | } | |
87 | ||
1da177e4 LT |
88 | struct pt_regs; |
89 | extern void (*perf_irq)(unsigned long, struct pt_regs *); | |
90 | ||
1da177e4 | 91 | #endif /* _ALPHA_IRQ_H */ |