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authorVincenzo Frascino <vincenzo.frascino@arm.com>2020-03-20 17:53:29 +0300
committerThomas Gleixner <tglx@linutronix.de>2020-03-21 17:23:54 +0300
commit659a9faa3f3c89de4c34c30c3da676059864e0fe (patch)
treefb3734b38c9a374ae183eac0b8a4cc234a0ae210 /arch
parent3e0e9f8c6e3ca92154a74edc23a8872da921d2b6 (diff)
downloadlinux-659a9faa3f3c89de4c34c30c3da676059864e0fe.tar.xz
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
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/clocksource.h5
-rw-r--r--arch/x86/include/asm/vdso/clocksource.h10
2 files changed, 11 insertions, 4 deletions
diff --git a/arch/x86/include/asm/clocksource.h b/arch/x86/include/asm/clocksource.h
index d561db67f96d..dc9dc7b3911a 100644
--- a/arch/x86/include/asm/clocksource.h
+++ b/arch/x86/include/asm/clocksource.h
@@ -4,10 +4,7 @@
#ifndef _ASM_X86_CLOCKSOURCE_H
#define _ASM_X86_CLOCKSOURCE_H
-#define VDSO_ARCH_CLOCKMODES \
- VDSO_CLOCKMODE_TSC, \
- VDSO_CLOCKMODE_PVCLOCK, \
- VDSO_CLOCKMODE_HVCLOCK
+#include <asm/vdso/clocksource.h>
extern unsigned int vclocks_used;
diff --git a/arch/x86/include/asm/vdso/clocksource.h b/arch/x86/include/asm/vdso/clocksource.h
new file mode 100644
index 000000000000..119ac8612d89
--- /dev/null
+++ b/arch/x86/include/asm/vdso/clocksource.h
@@ -0,0 +1,10 @@
+/* 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 */