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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 1998, 1999, 2003 by Ralf Baechle | |
7 | */ | |
8 | #ifndef _ASM_TIMEX_H | |
9 | #define _ASM_TIMEX_H | |
10 | ||
8f9a2b32 AN |
11 | #ifdef __KERNEL__ |
12 | ||
1da177e4 LT |
13 | #include <asm/mipsregs.h> |
14 | ||
15 | /* | |
72fc19ff RB |
16 | * This is the clock rate of the i8253 PIT. A MIPS system may not have |
17 | * a PIT by the symbol is used all over the kernel including some APIs. | |
18 | * So keeping it defined to the number for the PIT is the only sane thing | |
19 | * for now. | |
1da177e4 | 20 | */ |
72fc19ff | 21 | #define CLOCK_TICK_RATE 1193182 |
1da177e4 LT |
22 | |
23 | /* | |
24 | * Standard way to access the cycle counter. | |
25 | * Currently only used on SMP for scheduling. | |
26 | * | |
27 | * Only the low 32 bits are available as a continuously counting entity. | |
28 | * But this only means we'll force a reschedule every 8 seconds or so, | |
29 | * which isn't an evil thing. | |
30 | * | |
31 | * We know that all SMP capable CPUs have cycle counters. | |
32 | */ | |
33 | ||
34 | typedef unsigned int cycles_t; | |
35 | ||
49a89efb | 36 | static inline cycles_t get_cycles(void) |
1da177e4 | 37 | { |
efb9ca08 | 38 | return 0; |
1da177e4 LT |
39 | } |
40 | ||
8f9a2b32 AN |
41 | #endif /* __KERNEL__ */ |
42 | ||
1da177e4 | 43 | #endif /* _ASM_TIMEX_H */ |