| 1 |
|
| 2 | |
| 3 | * linux/include/asm-alpha/timex.h
|
| 4 | *
|
| 5 | * ALPHA architecture timex specifications
|
| 6 |
|
| 7 | #ifndef _ASMALPHA_TIMEX_H
|
| 8 | #define _ASMALPHA_TIMEX_H
|
| 9 |
|
| 10 | |
| 11 | * Standard way to access the cycle counter.
|
| 12 | * Currently only used on SMP for scheduling.
|
| 13 | *
|
| 14 | * Only the low 32 bits are available as a continuously counting entity.
|
| 15 | * But this only means we'll force a reschedule every 8 seconds or so,
|
| 16 | * which isn't an evil thing.
|
| 17 |
|
| 18 |
|
| 19 | typedef unsigned int cycles_t;
|
| 20 |
|
| 21 | static inline cycles_t get_cycles (void)
|
| 22 | {
|
| 23 | cycles_t ret;
|
| 24 | __asm__ __volatile__ ("rpcc %0" : "=r"(ret));
|
| 25 | return ret;
|
| 26 | }
|
| 27 | #define get_cycles get_cycles
|
| 28 |
|
| 29 | #endif
|