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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#c14">Comment # 14</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:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>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
* 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.
(In reply to dimon from <a href="show_bug.cgi?id=90137#c13">comment #13</a>)
<span class="quote">> 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.</span >
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?</pre>
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