On Thu, May 09, 2019 at 07:18:28PM +0200, Rafael J. Wysocki wrote:
> So does the patch below fix it for you?
Yes. Thanks for the fix. Feel free to add my tag:
Tested-by: Ido Schimmel
On Thursday, May 9, 2019 12:23:15 PM CEST Ido Schimmel wrote:
> On Thu, Mar 21, 2019 at 11:20:17PM +0100, Rafael J. Wysocki wrote:
> > +static struct attribute *intel_epb_attrs[] = {
> > + _attr_energy_perf_bias.attr,
> > + NULL
> > +};
> > +
> > +static const struct attribute_group
On Thu, Mar 21, 2019 at 11:20:17PM +0100, Rafael J. Wysocki wrote:
> +static struct attribute *intel_epb_attrs[] = {
> + _attr_energy_perf_bias.attr,
> + NULL
> +};
> +
> +static const struct attribute_group intel_epb_attr_group = {
> + .name = power_group_name,
> + .attrs =
On Thu, Mar 21, 2019 at 11:20:17PM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> The Performance and Energy Bias Hint (EPB) is expected to be set by
> user space through the generic MSR interface, but that interface is
> not particularly nice and there are security concerns
On Fri, Mar 22, 2019 at 3:46 PM Borislav Petkov wrote:
>
> First of all, thanks a lot for doing that!
>
> This is a good example for how we should convert all the /dev/msr
> accessing tools.
>
> Nitpicks below.
>
> On Thu, Mar 21, 2019 at 11:20:17PM +0100, Rafael J. Wysocki wrote:
> > From:
On Fri, Mar 22, 2019 at 4:00 PM Peter Zijlstra wrote:
>
> On Thu, Mar 21, 2019 at 11:20:17PM +0100, Rafael J. Wysocki wrote:
> > + ret = rdmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS, );
> > + if (ret < 0)
> > + return ret;
> > +
> > + ret = wrmsrl_on_cpu(cpu,
On Thu, Mar 21, 2019 at 11:20:17PM +0100, Rafael J. Wysocki wrote:
> + ret = rdmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS, );
> + if (ret < 0)
> + return ret;
> +
> + ret = wrmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS,
> + (epb & ~EPB_MASK) | val);
First of all, thanks a lot for doing that!
This is a good example for how we should convert all the /dev/msr
accessing tools.
Nitpicks below.
On Thu, Mar 21, 2019 at 11:20:17PM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> The Performance and Energy Bias Hint (EPB) is expected
On 3/21/19 11:20 PM, Rafael J. Wysocki wrote:
From: Rafael J. Wysocki
The Performance and Energy Bias Hint (EPB) is expected to be set by
user space through the generic MSR interface, but that interface is
not particularly nice and there are security concerns regarding it,
so it is not always
From: Rafael J. Wysocki
The Performance and Energy Bias Hint (EPB) is expected to be set by
user space through the generic MSR interface, but that interface is
not particularly nice and there are security concerns regarding it,
so it is not always available.
For this reason, add a sysfs
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