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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-10-18 11:13:01 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-10-18 11:13:01 -0300 |
| commit | ce6c9da1113ad681bff27a3e376d2017f7f8a59c (patch) | |
| tree | 922ee99522f8e47e4fa5c735d4ea378dfdb79085 /arch/x86/kernel/tsc.c | |
| parent | d4ae552982de39417d17f823df1f06b1cbc3686c (diff) | |
| parent | 20e8e72d0fa8e26202932c30d592bade73fdc701 (diff) | |
| download | talos-obmc-linux-ce6c9da1113ad681bff27a3e376d2017f7f8a59c.tar.gz talos-obmc-linux-ce6c9da1113ad681bff27a3e376d2017f7f8a59c.zip | |
Merge remote-tracking branch 'tip/perf/urgent' into perf/core
To pick up fixes.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/x86/kernel/tsc.c')
| -rw-r--r-- | arch/x86/kernel/tsc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index dd6b564f65e3..19c3c6bec325 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -26,6 +26,7 @@ #include <asm/apic.h> #include <asm/intel-family.h> #include <asm/i8259.h> +#include <asm/uv/uv.h> unsigned int __read_mostly cpu_khz; /* TSC clocks / usec, not used here */ EXPORT_SYMBOL(cpu_khz); @@ -1433,6 +1434,9 @@ void __init tsc_early_init(void) { if (!boot_cpu_has(X86_FEATURE_TSC)) return; + /* Don't change UV TSC multi-chassis synchronization */ + if (is_early_uv_system()) + return; if (!determine_cpu_tsc_frequencies(true)) return; loops_per_jiffy = get_loops_per_jiffy(); |
