drivers/parrot/gpu/mali400/linux/mali_osk_time.c

/*
 * Copyright (C) 2010, 2013-2014 ARM Limited. All rights reserved.
 * 
 * This program is free software and is provided to you under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
 * 
 * A copy of the licence is included with the program, and can also be obtained from Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

/**
 * @file mali_osk_time.c
 * Implementation of the OS abstraction layer for the kernel device driver
 */

#include "mali_osk.h"
#include <linux/jiffies.h>
#include <linux/time.h>
#include <asm/delay.h>

int     _mali_osk_time_after(u32 ticka, u32 tickb)
{
	return time_after((unsigned long)ticka, (unsigned long)tickb);
}

u32     _mali_osk_time_mstoticks(u32 ms)
{
	return msecs_to_jiffies(ms);
}

u32     _mali_osk_time_tickstoms(u32 ticks)
{
	return jiffies_to_msecs(ticks);
}

u32     _mali_osk_time_tickcount(void)
{
	return jiffies;
}

void _mali_osk_time_ubusydelay(u32 usecs)
{
	udelay(usecs);
}

u64 _mali_osk_time_get_ns(void)
{
	struct timespec tsval;
	getnstimeofday(&tsval);
	return (u64)timespec_to_ns(&tsval);
}