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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ilk] IPS frequently downclocks the GPU when playing quakelive"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90137#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [ilk] IPS frequently downclocks the GPU when playing quakelive"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90137">bug 90137</a>
from <span class="vcard"><a class="email" href="mailto:dimon@gmx.net" title="dimon@gmx.net">dimon@gmx.net</a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=90137#c14">comment #14</a>)
<span class="quote">> Enabled, unmasked, but never trigger. Huh.
>
> I guess add a sanity check that ironlake_enable_drps() is indeed being
> called. Though that should be shown "SW mode enabled" in
> /sys/kernel/debug/dri/0/i915_drpc_info</span >
Sw mode is enabled
<span class="quote">>
> * spots EI intervals and thresholds in there.
>
> At least I'm getting to know this code better, in theory at least.
>
> Can you compare
>
> 92bb36c80e561f82b1f4b63cc269a71833137841 - baseline
> 94afa384a6cddb565d7944c79aa3a2d536e4fe54 - preparation
> 86a8ed9560350c7ca12d2fb7e8d694a2ea4a60cc - conversion to gen6+ RPS routines
>
> and verify where the bug gets introduced.</span >
86a8ed9560350c7ca12d2fb7e8d694a2ea4a60cc
<span class="quote">>
> (In reply to dimon from <a href="show_bug.cgi?id=90137#c13">comment #13</a>)
> > Wow, after a fresh reboot reclocking worked for a short period of time.
> > I was getting DE_PCU_EVENTs, pstates alternated between 0 and 10.
> > Then it stopped generating DE_PCU_EVENTs and stopped reclocking.
>
> Ah, that's probably my runtime pm experiments to disable the interrupts when
> idle. If you jump back to 57c6b89256000f038a5bbc65eb745a6ad3858a6c does it
> continue to work even after idle?</span >
no, it doesn't</pre>
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