x86: Introduce asm/vdso/clocksource.h

The vDSO library should only include the necessary headers required for
a userspace library (UAPI and a minimal set of kernel headers). To make
this possible it is necessary to isolate from the kernel headers the
common parts that are strictly necessary to build the library.

Introduce asm/vdso/clocksource.h to contain all the arm64 specific
functions that are suitable for vDSO inclusion.

This header will be required by a future patch that will generalize
vdso/clocksource.h.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200320145351.32292-5-vincenzo.frascino@arm.com
This commit is contained in:
Vincenzo Frascino
2020-03-20 14:53:29 +00:00
committed by Thomas Gleixner
parent 3e0e9f8c6e
commit 659a9faa3f
2 changed files with 11 additions and 4 deletions

View File

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_VDSO_CLOCKSOURCE_H
#define __ASM_VDSO_CLOCKSOURCE_H
#define VDSO_ARCH_CLOCKMODES \
VDSO_CLOCKMODE_TSC, \
VDSO_CLOCKMODE_PVCLOCK, \
VDSO_CLOCKMODE_HVCLOCK
#endif /* __ASM_VDSO_CLOCKSOURCE_H */