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arm: Introduce asm/vdso/clocksource.h

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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>
Cc: Russell King <linux@armlinux.org.uk>
Link: https://lkml.kernel.org/r/20200320145351.32292-6-vincenzo.frascino@arm.com
This commit is contained in:
Vincenzo Frascino 2020-03-20 14:53:30 +00:00 committed by Thomas Gleixner
parent 659a9faa3f
commit c16b270b17
2 changed files with 11 additions and 3 deletions
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6
arch/arm/include/asm/clocksource.h
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@ -1,7 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_CLOCKSOURCE_H
#define _ASM_CLOCKSOURCE_H
#define VDSO_ARCH_CLOCKMODES \
VDSO_CLOCKMODE_ARCHTIMER
#include <asm/vdso/clocksource.h>
#endif
#endif /* _ASM_CLOCKSOURCE_H */

8
arch/arm/include/asm/vdso/clocksource.h Normal file
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@ -0,0 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_VDSOCLOCKSOURCE_H
#define __ASM_VDSOCLOCKSOURCE_H
#define VDSO_ARCH_CLOCKMODES \
VDSO_CLOCKMODE_ARCHTIMER
#endif /* __ASM_VDSOCLOCKSOURCE_H */