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From: Francisco Jerez <currojerez@riseup.net>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>, "Pandruvada\,
	Srinivas" <srinivas.pandruvada@intel.com>
Cc: linux-pm@vger.kernel.org, intel-gfx@lists.freedesktop.org,
	chris.p.wilson@intel.com, "Vivi\,
	Rodrigo" <rodrigo.vivi@intel.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: [RFC] GPU-bound energy efficiency improvements for the intel_pstate driver (v2.99)
Date: Mon, 27 Apr 2020 20:22:47 -0700
Message-ID: <20200428032258.2518-1-currojerez@riseup.net> (raw)

This addresses the technical concerns people brought up about my
previous v2 revision of this series.  Other than a few bug fixes, the
only major change relative to v2 is that the controller is now exposed
as a new CPUFREQ generic governor as requested by Rafael (named
"adaptive" in this RFC though other naming suggestions are welcome).
Main reason for calling this v2.99 rather than v3 is that I haven't
yet addressed all the documentation requests from the v2 thread --
Will spend some time doing that as soon as I have an ACK (ideally from
Rafael) that things are moving in the right direction.

You can also find this series along with the WIP code for non-HWP
platforms in this branch:

https://github.com/curro/linux/tree/intel_pstate-vlp-v2.99

Thanks!

[PATCHv2.99 01/11] PM: QoS: Add CPU_SCALING_RESPONSE global PM QoS limit.
[PATCHv2.99 02/11] drm/i915: Adjust PM QoS scaling response frequency based on GPU load.
[PATCHv2.99 03/11] OPTIONAL: drm/i915: Expose PM QoS control parameters via debugfs.
[PATCHv2.99 04/11] cpufreq: Define ADAPTIVE frequency governor policy.
[PATCHv2.99 05/11] cpufreq: intel_pstate: Reorder intel_pstate_clear_update_util_hook() and intel_pstate_set_update_util_hook().
[PATCHv2.99 06/11] cpufreq: intel_pstate: Call intel_pstate_set_update_util_hook() once from the setpolicy hook.
[PATCHv2.99 07/11] cpufreq: intel_pstate: Implement VLP controller statistics and target range calculation.
[PATCHv2.99 08/11] cpufreq: intel_pstate: Implement VLP controller for HWP parts.
[PATCHv2.99 09/11] cpufreq: intel_pstate: Enable VLP controller based on ACPI FADT profile and CPUID.
[PATCHv2.99 10/11] OPTIONAL: cpufreq: intel_pstate: Add tracing of VLP controller status.
[PATCHv2.99 11/11] OPTIONAL: cpufreq: intel_pstate: Expose VLP controller parameters via debugfs.


             reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-28  3:22 Francisco Jerez [this message]
2020-04-28  3:22 ` [PATCHv2.99 01/11] PM: QoS: Add CPU_SCALING_RESPONSE global PM QoS limit Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 02/11] drm/i915: Adjust PM QoS scaling response frequency based on GPU load Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 03/11] OPTIONAL: drm/i915: Expose PM QoS control parameters via debugfs Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 04/11] cpufreq: Define ADAPTIVE frequency governor policy Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 05/11] cpufreq: intel_pstate: Reorder intel_pstate_clear_update_util_hook() and intel_pstate_set_update_util_hook() Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 06/11] cpufreq: intel_pstate: Call intel_pstate_set_update_util_hook() once from the setpolicy hook Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 07/11] cpufreq: intel_pstate: Implement VLP controller statistics and target range calculation Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 08/11] cpufreq: intel_pstate: Implement VLP controller for HWP parts Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 09/11] cpufreq: intel_pstate: Enable VLP controller based on ACPI FADT profile and CPUID Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 10/11] OPTIONAL: cpufreq: intel_pstate: Add tracing of VLP controller status Francisco Jerez
2020-04-28  3:22 ` [PATCHv2.99 11/11] OPTIONAL: cpufreq: intel_pstate: Expose VLP controller parameters via debugfs Francisco Jerez
2020-05-11 10:57 ` [RFC] GPU-bound energy efficiency improvements for the intel_pstate driver (v2.99) Peter Zijlstra
2020-05-11 21:01   ` Francisco Jerez
2020-05-14 10:26     ` Rafael J. Wysocki
2020-05-15  0:48       ` Francisco Jerez
2020-05-14 11:50     ` Valentin Schneider
2020-05-15  0:48       ` Francisco Jerez
2020-05-15 18:09         ` Valentin Schneider
2020-05-28  9:29           ` Lukasz Luba

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