1/*
 2 *  Port on Texas Instruments TMS320C6x architecture
 3 *
 4 *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
 5 *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
 6 *
 7 *  Modified for 2.6.34: Mark Salter <msalter@redhat.com>
 8 *
 9 *  This program is free software; you can redistribute it and/or modify
10 *  it under the terms of the GNU General Public License version 2 as
11 *  published by the Free Software Foundation.
12 */
13#ifndef _ASM_C6X_TIMEX_H
14#define _ASM_C6X_TIMEX_H
15
16#define CLOCK_TICK_RATE ((1000 * 1000000UL) / 6)
17
18/* 64-bit timestamp */
19typedef unsigned long long cycles_t;
20
21static inline cycles_t get_cycles(void)
22{
23	unsigned l, h;
24
25	asm volatile (" dint\n"
26		      " mvc .s2 TSCL,%0\n"
27		      " mvc .s2 TSCH,%1\n"
28		      " rint\n"
29		      : "=b"(l), "=b"(h));
30	return ((cycles_t)h << 32) | l;
31}
32
33#endif /* _ASM_C6X_TIMEX_H */

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 *  Port on Texas Instruments TMS320C6x architecture
 4 *
 5 *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
 6 *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
 7 *
 8 *  Modified for 2.6.34: Mark Salter <msalter@redhat.com>
 
 
 
 
 9 */
10#ifndef _ASM_C6X_TIMEX_H
11#define _ASM_C6X_TIMEX_H
12
13#define CLOCK_TICK_RATE ((1000 * 1000000UL) / 6)
14
15/* 64-bit timestamp */
16typedef unsigned long long cycles_t;
17
18static inline cycles_t get_cycles(void)
19{
20	unsigned l, h;
21
22	asm volatile (" dint\n"
23		      " mvc .s2 TSCL,%0\n"
24		      " mvc .s2 TSCH,%1\n"
25		      " rint\n"
26		      : "=b"(l), "=b"(h));
27	return ((cycles_t)h << 32) | l;
28}
29
30#endif /* _ASM_C6X_TIMEX_H */