linux/arch/arm/plat-versatile/sched-clock.c

29 lines
585 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* linux/arch/arm/plat-versatile/sched-clock.c
*
* Copyright (C) 1999 - 2003 ARM Limited
* Copyright (C) 2000 Deep Blue Solutions Ltd
*/
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/sched_clock.h>
#include <plat/sched_clock.h>
static void __iomem *ctr;
static u64 notrace versatile_read_sched_clock(void)
{
if (ctr)
return readl(ctr);
return 0;
}
void __init versatile_sched_clock_init(void __iomem *reg, unsigned long rate)
{
ctr = reg;
sched_clock_register(versatile_read_sched_clock, 32, rate);
}