[v2 9/9] x86/tsc: use tsc early

From: Pavel Tatashin
Date: Fri Mar 24 2017 - 11:27:51 EST


Call tsc_early_init() to initialize early boot time stamps functionality on
the supported x86 platforms, and call tsc_early_fini() to finish this
feature after permanent tsc has been initialized.

Signed-off-by: Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>
---
arch/x86/kernel/head64.c | 1 +
arch/x86/kernel/time.c | 1 +
2 files changed, 2 insertions(+)

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index b5785c1..1068a56 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -157,6 +157,7 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
clear_bss();

clear_page(init_level4_pgt);
+ tsc_early_init();

kasan_early_init();

diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index d39c091..2d691eb3 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -85,6 +85,7 @@ static __init void x86_late_time_init(void)
{
x86_init.timers.timer_init();
tsc_init();
+ tsc_early_fini();
}

/*
--
1.8.3.1