On Tue, Mar 19, 2019 at 11:49 AM Viresh Kumar wrote:
>
> On 19-03-19, 10:41, Rafael J. Wysocki wrote:
> > On Tue, Mar 19, 2019 at 6:50 AM Viresh Kumar
> > wrote:
> > >
> > > On 18-03-19, 12:49, Rafael J. Wysocki wrote:
> > > > To summarize, I think that it would be sufficient to do this just for
On 19-03-19, 10:41, Rafael J. Wysocki wrote:
> On Tue, Mar 19, 2019 at 6:50 AM Viresh Kumar wrote:
> >
> > On 18-03-19, 12:49, Rafael J. Wysocki wrote:
> > > To summarize, I think that it would be sufficient to do this just for
> > > policy->cpu and, as Peter said, warn once if there are more CPUs
On Tue, Mar 19, 2019 at 6:50 AM Viresh Kumar wrote:
>
> On 18-03-19, 12:49, Rafael J. Wysocki wrote:
> > To summarize, I think that it would be sufficient to do this just for
> > policy->cpu and, as Peter said, warn once if there are more CPUs in
> > the policy or policy->cpu is not the CPU runnin
On 18-03-19, 12:49, Rafael J. Wysocki wrote:
> To summarize, I think that it would be sufficient to do this just for
> policy->cpu and, as Peter said, warn once if there are more CPUs in
> the policy or policy->cpu is not the CPU running this code. And mark
> the TSC as unstable in both of these c
On Fri, Mar 15, 2019 at 10:13 AM Viresh Kumar wrote:
>
> Currently we call these notifiers once for each CPU of the policy->cpus
> cpumask. It would be more optimal if the notifier can be called only
> once and all the relevant information be provided to it. Out of the 24
> drivers that register f
On Mon, Mar 18, 2019 at 12:09 PM Rafael J. Wysocki wrote:
>
> On Mon, Mar 18, 2019 at 11:54 AM Peter Zijlstra wrote:
> >
> > On Mon, Mar 18, 2019 at 08:05:14AM +0530, Viresh Kumar wrote:
> > > On 15-03-19, 13:29, Peter Zijlstra wrote:
> > > > On Fri, Mar 15, 2019 at 02:43:07PM +0530, Viresh Kumar
On Mon, Mar 18, 2019 at 11:54 AM Peter Zijlstra wrote:
>
> On Mon, Mar 18, 2019 at 08:05:14AM +0530, Viresh Kumar wrote:
> > On 15-03-19, 13:29, Peter Zijlstra wrote:
> > > On Fri, Mar 15, 2019 at 02:43:07PM +0530, Viresh Kumar wrote:
> > > > diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/ts
On Mon, Mar 18, 2019 at 11:45:00AM +0100, Rafael J. Wysocki wrote:
> On Fri, Mar 15, 2019 at 1:30 PM Peter Zijlstra wrote:
> > On Fri, Mar 15, 2019 at 02:43:07PM +0530, Viresh Kumar wrote:
> > > + for_each_cpu(cpu, cpus)
> > > + set_cyc2ns_scale(tsc_khz, cpu, rdtsc
On Mon, Mar 18, 2019 at 08:05:14AM +0530, Viresh Kumar wrote:
> On 15-03-19, 13:29, Peter Zijlstra wrote:
> > On Fri, Mar 15, 2019 at 02:43:07PM +0530, Viresh Kumar wrote:
> > > diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
> > > index 3fae23834069..cff8779fc0d2 100644
> > > --- a/arch
On Fri, Mar 15, 2019 at 1:30 PM Peter Zijlstra wrote:
>
> On Fri, Mar 15, 2019 at 02:43:07PM +0530, Viresh Kumar wrote:
> > diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
> > index 3fae23834069..cff8779fc0d2 100644
> > --- a/arch/x86/kernel/tsc.c
> > +++ b/arch/x86/kernel/tsc.c
> > @@
On 15-03-19, 13:29, Peter Zijlstra wrote:
> On Fri, Mar 15, 2019 at 02:43:07PM +0530, Viresh Kumar wrote:
> > diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
> > index 3fae23834069..cff8779fc0d2 100644
> > --- a/arch/x86/kernel/tsc.c
> > +++ b/arch/x86/kernel/tsc.c
> > @@ -956,28 +956,38
On Fri, Mar 15, 2019 at 02:43:07PM +0530, Viresh Kumar wrote:
> diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
> index 3fae23834069..cff8779fc0d2 100644
> --- a/arch/x86/kernel/tsc.c
> +++ b/arch/x86/kernel/tsc.c
> @@ -956,28 +956,38 @@ static int time_cpufreq_notifier(struct notifier_b
Currently we call these notifiers once for each CPU of the policy->cpus
cpumask. It would be more optimal if the notifier can be called only
once and all the relevant information be provided to it. Out of the 24
drivers that register for the transition notifiers today, only 5 of them
do per-cpu upd
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