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From: Martin Peres <martin.peres@linux.intel.com>
To: tom.orourke@intel.com, intel-gfx@lists.freedesktop.org
Cc: Tom O'Rourke <Tom.O'Rourke@intel.com>
Subject: Re: [RFC 00/22] Add support for GuC-based SLPC
Date: Tue, 9 Feb 2016 13:56:54 +0200	[thread overview]
Message-ID: <56B9D406.2000302@linux.intel.com> (raw)
In-Reply-To: <1453343184-160456-1-git-send-email-tom.orourke@intel.com>

On 21/01/16 04:26, tom.orourke@intel.com wrote:
> From: Tom O'Rourke <Tom.O'Rourke@intel.com>
>
> SLPC (Single Loop Power Controller) is a replacement for
> some host-based power management features.  The SLPC
> implemenation runs in firmware on GuC.
>
> This series is a first request for comments.  This series
> is not expected to be merged.  After changes based on
> comments, a later patch series will be sent for merging.
>
> This series has been tested with SKL guc firmware
> versions 4.3 and 4.7.  The graphics power management
> features in SLPC in those versions are DFPS (Dynamic FPS),
> Turbo, and DCC (Duty Cycle Control).  DFPS adjusts
> requested graphics frequency to maintain target framerate.
> Turbo adjusts requested graphics frequency to maintain
> target GT busyness.  DCC adjusts requested graphics
> frequency and stalls guc-scheduler to maintain actual
> graphics frequency in efficient range.

Can we have a benchmark/CI mode that has turbo and reclocking disabled? 
The frequency would be set to whatever frequency the kernel requests and 
the GuC would report how many throttling events happened so as our 
benchmarking system could automatically lower the frequency to provide 
stable results.

We have benchmarks who really need such a mode!
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      parent reply	other threads:[~2016-02-09 11:56 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-21  2:26 [RFC 00/22] Add support for GuC-based SLPC tom.orourke
2016-01-21  2:26 ` [RFC 01/22] drm/i915: Enable GuC submission, where supported tom.orourke
2016-01-21  2:26 ` [RFC 02/22] drm/i915/slpc: Add has_slpc capability flag tom.orourke
2016-01-21  2:26 ` [RFC 03/22] drm/i915/slpc: Expose guc functions for use with SLPC tom.orourke
2016-01-21  2:26 ` [RFC 04/22] drm/i915/slpc: Use intel_slpc_* functions if supported tom.orourke
2016-01-21  2:26 ` [RFC 05/22] drm/i915/slpc: Enable/Disable RC6 in SLPC flows tom.orourke
2016-01-21  2:26 ` [RFC 06/22] drm/i915/slpc: If using SLPC, do not set frequency tom.orourke
2016-01-22 16:53   ` Daniel Vetter
2016-01-22 17:22     ` Daniel Vetter
2016-01-21  2:26 ` [RFC 07/22] drm/i915/slpc: Enable SLPC in guc if supported tom.orourke
2016-01-21  2:26 ` [RFC 08/22] drm/i915/slpc: Allocate/Release/Initialize SLPC shared data tom.orourke
2016-01-21  2:26 ` [RFC 09/22] drm/i915/slpc: Setup rps frequency values during SLPC init tom.orourke
2016-01-21  2:26 ` [RFC 10/22] drm/i915/slpc: Update current requested frequency tom.orourke
2016-01-21  2:26 ` [RFC 11/22] drm/i915/slpc: Send reset event tom.orourke
2016-01-21  2:26 ` [RFC 12/22] drm/i915/slpc: Send shutdown event tom.orourke
2016-01-21  2:26 ` [RFC 13/22] drm/i915/slpc: Add Display mode event related data structures tom.orourke
2016-01-21  2:26 ` [RFC 14/22] drm/i915/slpc: Notification of Display mode change tom.orourke
2016-01-21 13:24   ` Zanoni, Paulo R
2016-01-28  9:43     ` Kamble, Sagar A
2016-01-22 17:14   ` Ville Syrjälä
2016-01-29  5:00     ` Kamble, Sagar A
2016-01-21  2:26 ` [RFC 15/22] drm/i915/slpc: Notification of Refresh Rate change tom.orourke
2016-01-21  2:26 ` [RFC 16/22] drm/i915/slpc: Add slpc_status enum values tom.orourke
2016-01-21  2:26 ` [RFC 17/22] drm/i915/slpc: Add i915_slpc_info to debugfs tom.orourke
2016-01-21  2:26 ` [RFC 18/22] drm/i915/slpc: Add dfps task info to i915_slpc_info tom.orourke
2016-01-21  2:26 ` [RFC 19/22] drm/i915/slpc: Add parameter unset/set/get functions tom.orourke
2016-01-21  2:26 ` [RFC 20/22] drm/i915/slpc: Add slpc support for max/min freq tom.orourke
2016-01-21  2:26 ` [RFC 21/22] drm/i915/slpc: Add enable/disable debugfs for slpc tom.orourke
2016-01-21  2:26 ` [RFC 22/22] drm/i915/slpc: Add has_slpc to skylake info tom.orourke
2016-01-21 13:50 ` ✗ Fi.CI.BAT: failure for Add support for GuC-based SLPC Patchwork
2016-01-21 23:16   ` O'Rourke, Tom
2016-01-22 17:07     ` Daniel Vetter
2016-01-22 17:00 ` [RFC 00/22] " Daniel Vetter
2016-01-26 15:45   ` Jesse Barnes
2016-01-26 17:00     ` Daniel Vetter
2016-01-26 17:17       ` Jesse Barnes
2016-01-27  1:17         ` O'Rourke, Tom
2016-02-09 12:08       ` Martin Peres
2016-02-10  7:37         ` Daniel Vetter
2016-02-10 10:31           ` Martin Peres
2016-02-03 20:25 ` Zanoni, Paulo R
2016-02-09  7:03   ` Kamble, Sagar A
2016-02-11 20:10     ` Zanoni, Paulo R
2016-02-09 11:56 ` Martin Peres [this message]

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