1 /* SPDX-License-Identifier: GPL-2.0 */ !! 1 /*
2 #ifndef __ASM_GENERIC_TIMEX_H !! 2 * This file is subject to the terms and conditions of the GNU General Public
3 #define __ASM_GENERIC_TIMEX_H !! 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 * FIXME: For some of the supported machines this is dead wrong.
>> 9 */
>> 10 #ifndef _ASM_TIMEX_H
>> 11 #define _ASM_TIMEX_H
>> 12
>> 13 #include <asm/mipsregs.h>
4 14
5 /* 15 /*
6 * If you have a cycle counter, return the val !! 16 * Standard way to access the cycle counter.
>> 17 * Currently only used on SMP for scheduling.
>> 18 *
>> 19 * Only the low 32 bits are available as a continuously counting entity.
>> 20 * But this only means we'll force a reschedule every 8 seconds or so,
>> 21 * which isn't an evil thing.
>> 22 *
>> 23 * We know that all SMP capable CPUs have cycle counters.
7 */ 24 */
8 typedef unsigned long cycles_t; !! 25
9 #ifndef get_cycles !! 26 typedef unsigned int cycles_t;
10 static inline cycles_t get_cycles(void) !! 27 extern cycles_t cacheflush_time;
>> 28
>> 29 static inline cycles_t get_cycles (void)
11 { 30 {
12 return 0; !! 31 return read_c0_count();
13 } 32 }
14 #endif <<
15 33
16 /* !! 34 #define vxtime_lock() do {} while (0)
17 * Architectures are encouraged to implement r !! 35 #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 36
23 #endif /* __ASM_GENERIC_TIMEX_H */ !! 37 #endif /* _ASM_TIMEX_H */
24 38
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