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authorThomas Gleixner <tglx@linutronix.de>2018-09-17 15:45:34 +0300
committerThomas Gleixner <tglx@linutronix.de>2018-10-05 00:00:24 +0300
commitd67f34c19a679436dd2963b588015e119279e7a8 (patch)
tree273a0a7201cce3643febbbf5296b86b56f8cde76 /include/linux/clocksource.h
parent02e425668f5c9deb42787d10001a3b605993ad15 (diff)
downloadlinux-d67f34c19a679436dd2963b588015e119279e7a8.tar.xz
clocksource: Provide clocksource_arch_init()
Architectures have extra archdata in the clocksource, e.g. for VDSO support. There are no sanity checks or general initializations for this available. Add support for that. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: John Stultz <john.stultz@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Matt Rickard <matt@softrans.com.au> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Florian Weimer <fweimer@redhat.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: devel@linuxdriverproject.org Cc: virtualization@lists.linux-foundation.org Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Juergen Gross <jgross@suse.com> Link: https://lkml.kernel.org/r/20180917130706.973042587@linutronix.de
Diffstat (limited to 'include/linux/clocksource.h')
-rw-r--r--include/linux/clocksource.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 308918928767..6e6b86f9046d 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -241,6 +241,11 @@ static inline void __clocksource_update_freq_khz(struct clocksource *cs, u32 khz
__clocksource_update_freq_scale(cs, 1000, khz);
}
+#ifdef CONFIG_ARCH_CLOCKSOURCE_INIT
+extern void clocksource_arch_init(struct clocksource *cs);
+#else
+static inline void clocksource_arch_init(struct clocksource *cs) { }
+#endif
extern int timekeeping_notify(struct clocksource *clock);