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hrtimer: Split out hrtimer defines into separate header

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To avoid include dependency hell split out the hrtimer defines which are
required in the upcoming VDSO library into a separate header file.

[ tglx: Split out from the VDSO library patch and included ktime.h as
        the new header depends on it. ]

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Shijith Thotton <sthotton@marvell.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Huw Davies <huw@codeweavers.com>
Link: https://lkml.kernel.org/r/20190621095252.32307-3-vincenzo.frascino@arm.com
This commit is contained in:
Vincenzo Frascino 2019-06-22 15:02:07 +02:00 committed by Thomas Gleixner
parent b253d5f3ec
commit 32e29396f0
2 changed files with 28 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
include/linux/hrtimer.h
View file

@ -12,8 +12,8 @@
#ifndef _LINUX_HRTIMER_H
#define _LINUX_HRTIMER_H
#include <linux/hrtimer_defs.h>
#include <linux/rbtree.h>
#include <linux/ktime.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/percpu.h>
@ -298,26 +298,12 @@ struct clock_event_device;
extern void hrtimer_interrupt(struct clock_event_device *dev);
/*
* The resolution of the clocks. The resolution value is returned in
* the clock_getres() system call to give application programmers an
* idea of the (in)accuracy of timers. Timer values are rounded up to
* this resolution values.
*/
# define HIGH_RES_NSEC 1
# define KTIME_HIGH_RES (HIGH_RES_NSEC)
# define MONOTONIC_RES_NSEC HIGH_RES_NSEC
# define KTIME_MONOTONIC_RES KTIME_HIGH_RES
extern void clock_was_set_delayed(void);
extern unsigned int hrtimer_resolution;
#else
# define MONOTONIC_RES_NSEC LOW_RES_NSEC
# define KTIME_MONOTONIC_RES KTIME_LOW_RES
#define hrtimer_resolution (unsigned int)LOW_RES_NSEC
static inline void clock_was_set_delayed(void) { }

27
include/linux/hrtimer_defs.h Normal file
View file

@ -0,0 +1,27 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_HRTIMER_DEFS_H
#define _LINUX_HRTIMER_DEFS_H
#include <linux/ktime.h>
#ifdef CONFIG_HIGH_RES_TIMERS
/*
* The resolution of the clocks. The resolution value is returned in
* the clock_getres() system call to give application programmers an
* idea of the (in)accuracy of timers. Timer values are rounded up to
* this resolution values.
*/
# define HIGH_RES_NSEC 1
# define KTIME_HIGH_RES (HIGH_RES_NSEC)
# define MONOTONIC_RES_NSEC HIGH_RES_NSEC
# define KTIME_MONOTONIC_RES KTIME_HIGH_RES
#else
# define MONOTONIC_RES_NSEC LOW_RES_NSEC
# define KTIME_MONOTONIC_RES KTIME_LOW_RES
#endif
#endif