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| author |   Alexey Makhalov <amakhalov@vmware.com> | 2020-03-23 19:57:04 +0000 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2020-03-24 09:31:06 +0100 |
| commit | dd735f4707e603ac5b541b5f30de87c3c7bd60dd (patch) | |
| tree | b5f3e06bda10db216c175ae187ef7b067f331b44 /arch/x86/kernel/cpu/vmware.c | |
| parent | x86/vmware: Make vmware_select_hypercall() __init (diff) | |
| download | linux-dev-dd735f4707e603ac5b541b5f30de87c3c7bd60dd.tar.xz linux-dev-dd735f4707e603ac5b541b5f30de87c3c7bd60dd.zip | |
x86/vmware: Remove vmware_sched_clock_setup()
Move cyc2ns setup logic to separate function.
This separation will allow to use cyc2ns mult/shift pair
not only for the sched_clock but also for other clocks
such as steal_clock.
Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200323195707.31242-3-amakhalov@vmware.com
Diffstat (limited to 'arch/x86/kernel/cpu/vmware.c')
| -rw-r--r-- | arch/x86/kernel/cpu/vmware.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c index d280560fd75e..efb22fa76ba4 100644 --- a/arch/x86/kernel/cpu/vmware.c +++ b/arch/x86/kernel/cpu/vmware.c @@ -122,7 +122,7 @@ static unsigned long long notrace vmware_sched_clock(void) return ns; } -static void __init vmware_sched_clock_setup(void) +static void __init vmware_cyc2ns_setup(void) { struct cyc2ns_data *d = &vmware_cyc2ns; unsigned long long tsc_now = rdtsc(); @@ -132,8 +132,7 @@ static void __init vmware_sched_clock_setup(void) d->cyc2ns_offset = mul_u64_u32_shr(tsc_now, d->cyc2ns_mul, d->cyc2ns_shift); - pv_ops.time.sched_clock = vmware_sched_clock; - pr_info("using sched offset of %llu ns\n", d->cyc2ns_offset); + pr_info("using clock offset of %llu ns\n", d->cyc2ns_offset); } static void __init vmware_paravirt_ops_setup(void) @@ -141,8 +140,14 @@ static void __init vmware_paravirt_ops_setup(void) pv_info.name = "VMware hypervisor"; pv_ops.cpu.io_delay = paravirt_nop; - if (vmware_tsc_khz && vmw_sched_clock) - vmware_sched_clock_setup(); + if (vmware_tsc_khz == 0) + return; + + vmware_cyc2ns_setup(); + + if (vmw_sched_clock) + pv_ops.time.sched_clock = vmware_sched_clock; + } #else #define vmware_paravirt_ops_setup() do {} while (0) |