Release 4.18 arch/riscv/include/asm/timex.h

/*
 * Copyright (C) 2012 Regents of the University of California
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 */

#ifndef _ASM_RISCV_TIMEX_H

#define _ASM_RISCV_TIMEX_H

#include <asm/param.h>


typedef unsigned long cycles_t;



static inline cycles_t get_cycles_inline(void)
{
	cycles_t n;

	__asm__ __volatile__ (
                "rdtime %0"
                : "=r" (n));
	return n;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
17
94.44%
1
50.00%
Olof Johansson
1
5.56%
1
50.00%
Total
18
100.00%
2
100.00%


#define get_cycles get_cycles_inline

#ifdef CONFIG_64BIT


static inline uint64_t get_cycles64(void)
{
        return get_cycles();
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
13
100.00%
1
100.00%
Total
13
100.00%
1
100.00%

#else


static inline uint64_t get_cycles64(void)
{
	u32 lo, hi, tmp;
	__asm__ __volatile__ (
                "1:\n"
                "rdtimeh %0\n"
                "rdtime %1\n"
                "rdtimeh %2\n"
                "bne %0, %2, 1b"
                : "=&r" (hi), "=&r" (lo), "=&r" (tmp));
	return ((u64)hi << 32) | lo;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
31
100.00%
1
100.00%
Total
31
100.00%
1
100.00%

#endif


#define ARCH_HAS_READ_CURRENT_TIMER



static inline int read_current_timer(unsigned long *timer_val)
{
	*timer_val = get_cycles();
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
21
100.00%
1
100.00%
Total
21
100.00%
1
100.00%

#endif /* _ASM_RISCV_TIMEX_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Palmer Dabbelt
110
95.65%
1
50.00%
Olof Johansson
5
4.35%
1
50.00%
Total
115
100.00%
2
100.00%
Directory: arch/riscv/include/asm

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.