Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thu, Dec 17, 2020 at 6:29 PM Rafael J. Wysocki wrote: > > On Thu, Dec 17, 2020 at 6:09 PM Srinivas Pandruvada > wrote: > > > > On Thu, 2020-12-17 at 16:24 +0100, Rafael J. Wysocki wrote: > > > On Thu, Dec 17, 2020 at 4:21 PM Srinivas Pandruvada > > > wrote: [cut] > > > > > Well, would somet

Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thu, Dec 17, 2020 at 6:09 PM Srinivas Pandruvada wrote: > > On Thu, 2020-12-17 at 16:24 +0100, Rafael J. Wysocki wrote: > > On Thu, Dec 17, 2020 at 4:21 PM Srinivas Pandruvada > > wrote: > > > > > > On Thu, 2020-12-17 at 16:12 +0100, Rafael J. Wysocki wrote: > > > > On Thursday, December 17, 2

Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thu, 2020-12-17 at 16:24 +0100, Rafael J. Wysocki wrote: > On Thu, Dec 17, 2020 at 4:21 PM Srinivas Pandruvada > wrote: > > > > On Thu, 2020-12-17 at 16:12 +0100, Rafael J. Wysocki wrote: > > > On Thursday, December 17, 2020 3:23:44 PM CET Srinivas Pandruvada > > > wrote: > > > > On Thu, 2020-

Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thu, Dec 17, 2020 at 4:21 PM Srinivas Pandruvada wrote: > > On Thu, 2020-12-17 at 16:12 +0100, Rafael J. Wysocki wrote: > > On Thursday, December 17, 2020 3:23:44 PM CET Srinivas Pandruvada > > wrote: > > > On Thu, 2020-12-17 at 06:19 -0800, Srinivas Pandruvada wrote: > > > > On Thu, 2020-12-17

Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thu, 2020-12-17 at 16:12 +0100, Rafael J. Wysocki wrote: > On Thursday, December 17, 2020 3:23:44 PM CET Srinivas Pandruvada > wrote: > > On Thu, 2020-12-17 at 06:19 -0800, Srinivas Pandruvada wrote: > > > On Thu, 2020-12-17 at 14:58 +0100, Rafael J. Wysocki wrote: > > > > On Thu, Dec 17, 2020 a

Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thursday, December 17, 2020 3:23:44 PM CET Srinivas Pandruvada wrote: > On Thu, 2020-12-17 at 06:19 -0800, Srinivas Pandruvada wrote: > > On Thu, 2020-12-17 at 14:58 +0100, Rafael J. Wysocki wrote: > > > On Thu, Dec 17, 2020 at 11:44 AM Srinivas Pandruvada > > > wrote: > > > > > > > > This cha

Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thu, 2020-12-17 at 06:19 -0800, Srinivas Pandruvada wrote: > On Thu, 2020-12-17 at 14:58 +0100, Rafael J. Wysocki wrote: > > On Thu, Dec 17, 2020 at 11:44 AM Srinivas Pandruvada > > wrote: > > > > > > This change tries to address an issue, when BIOS disabled turbo > > > but HWP_CAP guaranteed

Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thu, 2020-12-17 at 14:58 +0100, Rafael J. Wysocki wrote: > On Thu, Dec 17, 2020 at 11:44 AM Srinivas Pandruvada > wrote: > > > > This change tries to address an issue, when BIOS disabled turbo > > but HWP_CAP guaranteed is changed later and user space wants to > > take > > advantage of this in

Re: [PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

On Thu, Dec 17, 2020 at 11:44 AM Srinivas Pandruvada wrote: > > This change tries to address an issue, when BIOS disabled turbo > but HWP_CAP guaranteed is changed later and user space wants to take > advantage of this increased guaranteed performance. > > The HWP_CAP.GUARANTEED value is not a sta

[PATCH] cpufreq: intel_pstate: Use the latest guaranteed freq during verify

This change tries to address an issue, when BIOS disabled turbo but HWP_CAP guaranteed is changed later and user space wants to take advantage of this increased guaranteed performance. The HWP_CAP.GUARANTEED value is not a static value. It can be changed by some out of band agent or during Intel S