[Bug 107466] [CI] GLK igt at pm_rpm@min-max-config-loaded - fail - Failed assertion: freqs[MAX] <= freqs[CUR]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107466

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
Carpet. Swept. Under.

commit 0d55babc8392754352f1058866dd4182ae587d11
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Aug 2 11:06:28 2018 +0100

    drm/i915: Drop stray clearing of rps->last_adj

    We used to reset last_adj to 0 on crossing a power domain boundary, to
    slow down our rate of change. However, commit 60548c554be2 ("drm/i915:
    Interactive RPS mode") accidentally caused it to be reset on every
    frequency update, nerfing the fast response granted by the slow start
    algorithm.

    Fixes: 60548c554be2 ("drm/i915: Interactive RPS mode")
    Testcase: igt/pm_rps/mix-max-config-loaded
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
    Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20180802100631.31305-1-chris@chris-wilson.co.uk

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