/usr/include/xenomai/asm-sh/tsc.h is in libxenomai-dev 2.6.4+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | /*
* Copyright (C) 2011 Philippe Gerum <rpm@xenomai.org>.
*
* Xenomai 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; either version 2 of the License,
* or (at your option) any later version.
*
* Xenomai 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.
*
* You should have received a copy of the GNU General Public License
* along with Xenomai; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _XENO_ASM_SH_TSC_H
#define _XENO_ASM_SH_TSC_H
#ifndef __KERNEL__
#include <endian.h>
struct xnarch_tsc_area {
struct {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned long high;
unsigned long low;
#else /* __LITTLE_ENDIAN */
unsigned long low;
unsigned long high;
#endif /* __LITTLE_ENDIAN */
} tsc;
unsigned long counter_pa;
};
extern volatile struct xnarch_tsc_area *xeno_sh_tsc;
extern volatile unsigned long *xeno_sh_tcnt;
static inline unsigned long long __xn_rdtsc(void)
{
unsigned long long tsc;
unsigned long low;
tsc = xeno_sh_tsc->tsc.high;
low = *xeno_sh_tcnt ^ 0xffffffffUL;
if (low < xeno_sh_tsc->tsc.low)
tsc++;
tsc = (tsc << 32)|low;
return tsc;
}
#endif /* __KERNEL__ */
#endif /* _XENO_ASM_SH_TSC_H */
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