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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/x86/include/asm/tsc.h
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/x86/include/asm/tsc.h')
-rw-r--r--kernel/arch/x86/include/asm/tsc.h19
1 files changed, 2 insertions, 17 deletions
diff --git a/kernel/arch/x86/include/asm/tsc.h b/kernel/arch/x86/include/asm/tsc.h
index 94605c0e9..6d7c5479b 100644
--- a/kernel/arch/x86/include/asm/tsc.h
+++ b/kernel/arch/x86/include/asm/tsc.h
@@ -21,28 +21,12 @@ extern void disable_TSC(void);
static inline cycles_t get_cycles(void)
{
- unsigned long long ret = 0;
-
#ifndef CONFIG_X86_TSC
if (!cpu_has_tsc)
return 0;
#endif
- rdtscll(ret);
-
- return ret;
-}
-static __always_inline cycles_t vget_cycles(void)
-{
- /*
- * We only do VDSOs on TSC capable CPUs, so this shouldn't
- * access boot_cpu_data (which is not VDSO-safe):
- */
-#ifndef CONFIG_X86_TSC
- if (!cpu_has_tsc)
- return 0;
-#endif
- return (cycles_t)__native_read_tsc();
+ return rdtsc();
}
extern void tsc_init(void);
@@ -51,6 +35,7 @@ extern int unsynchronized_tsc(void);
extern int check_tsc_unstable(void);
extern int check_tsc_disabled(void);
extern unsigned long native_calibrate_tsc(void);
+extern unsigned long long native_sched_clock_from_tsc(u64 tsc);
extern int tsc_clocksource_reliable;