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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_CRIS_ARCH_TIMEX_H
#define _ASM_CRIS_ARCH_TIMEX_H

#include <hwregs/reg_map.h>
#include <hwregs/reg_rdwr.h>
#include <hwregs/timer_defs.h>

/*
 * The clock runs at 100MHz, we divide it by 1000000. If you change anything
 * here you must check time.c as well.
 */

#define CLOCK_TICK_RATE 100000000	/* Underlying frequency of the HZ timer */

/* The timer0 values gives 10 ns resolution but interrupts at HZ. */
#define TIMER0_FREQ (CLOCK_TICK_RATE)
#define TIMER0_DIV (TIMER0_FREQ/(HZ))

/* Convert the value in step of 10 ns to 1us without overflow: */
#define GET_JIFFIES_USEC() \
	((TIMER0_DIV - REG_RD(timer, regi_timer0, r_tmr0_data)) / 100)

extern unsigned long get_ns_in_jiffie(void);

static inline unsigned long get_us_in_jiffie_highres(void)
{
	return get_ns_in_jiffie() / 1000;
}

#endif


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Name Type Size Permission Actions
hwregs Folder 0755
bitops.h File 1.29 KB 0644
bug.h File 1008 B 0644
cache.h File 601 B 0644
checksum.h File 807 B 0644
cryptocop.h File 4.25 KB 0644
delay.h File 649 B 0644
dma.h File 22 B 0644
intmem.h File 339 B 0644
irq.h File 3.55 KB 0644
irqflags.h File 1 KB 0644
memmap.h File 25 B 0644
mmu.h File 4.07 KB 0644
offset.h File 1.29 KB 0644
page.h File 660 B 0644
pgtable.h File 483 B 0644
processor.h File 1.52 KB 0644
swab.h File 517 B 0644
system.h File 803 B 0644
thread_info.h File 363 B 0644
timex.h File 852 B 0644
tlb.h File 453 B 0644
uaccess.h File 18.38 KB 0644
unistd.h File 4.58 KB 0644