1 /* SPDX-License-Identifier: GPL-2.0 */ !! 1 /*
2 #ifndef __ASM_GENERIC_TIMEX_H !! 2 * linux/include/asm-alpha/timex.h
3 #define __ASM_GENERIC_TIMEX_H !! 3 *
>> 4 * ALPHA architecture timex specifications
>> 5 */
>> 6 #ifndef _ASMALPHA_TIMEX_H
>> 7 #define _ASMALPHA_TIMEX_H
>> 8
>> 9 #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
4 10
5 /* 11 /*
6 * If you have a cycle counter, return the val !! 12 * Standard way to access the cycle counter.
>> 13 * Currently only used on SMP for scheduling.
>> 14 *
>> 15 * Only the low 32 bits are available as a continuously counting entity.
>> 16 * But this only means we'll force a reschedule every 8 seconds or so,
>> 17 * which isn't an evil thing.
7 */ 18 */
8 typedef unsigned long cycles_t; !! 19
9 #ifndef get_cycles !! 20 typedef unsigned int cycles_t;
10 static inline cycles_t get_cycles(void) !! 21
>> 22 static inline cycles_t get_cycles (void)
11 { 23 {
12 return 0; !! 24 cycles_t ret;
>> 25 __asm__ __volatile__ ("rpcc %0" : "=r"(ret));
>> 26 return ret;
13 } 27 }
14 #endif <<
15 28
16 /* !! 29 #define vxtime_lock() do {} while (0)
17 * Architectures are encouraged to implement r !! 30 #define vxtime_unlock() do {} while (0)
18 * and define this in order to avoid the expen <<
19 * calibration during boot. <<
20 */ <<
21 #undef ARCH_HAS_READ_CURRENT_TIMER <<
22 31
23 #endif /* __ASM_GENERIC_TIMEX_H */ !! 32 #endif
24 33
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.