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<body><span class="vcard"><a class="email" href="mailto:luto@mit.edu" title="Andy Lutomirski <luto@mit.edu>"> <span class="fn">Andy Lutomirski</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [snb rc6] rc6 is not happening reliably"
href="https://bugs.freedesktop.org/show_bug.cgi?id=59368">bug 59368</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>NEW
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [snb rc6] rc6 is not happening reliably"
href="https://bugs.freedesktop.org/show_bug.cgi?id=59368#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [snb rc6] rc6 is not happening reliably"
href="https://bugs.freedesktop.org/show_bug.cgi?id=59368">bug 59368</a>
from <span class="vcard"><a class="email" href="mailto:luto@mit.edu" title="Andy Lutomirski <luto@mit.edu>"> <span class="fn">Andy Lutomirski</span></a>
</span></b>
<pre>[luto@antithesis tools]$ sudo cat /sys/kernel/debug/dri/0/i915_drpc_info
RC information accurate: yes
Video Turbo Mode: yes
HW control enabled: yes
SW control enabled: no
RC1e Enabled: no
RC6 Enabled: yes
Deep RC6 Enabled: no
Deepest RC6 Enabled: no
Current RC state: on
Core Power Down: no
RC6 "Locked to RPn" residency since boot: 0
RC6 residency since boot: 115522
RC6+ residency since boot: 0
RC6++ residency since boot: 0
RC6 voltage: 450mV
RC6+ voltage: 245mV
RC6++ voltage: 245mV
[luto@antithesis tools]$ sudo intel_reg_read 0xa094
Couldn't map MMIO region: No such file or directory
[luto@antithesis tools]$ ^Cdo intel_reg_read 0xa094
(reverse-i-search)`': ^C
[luto@antithesis tools]$ sudo intel_reg_write 0xa094 0xf0000
Couldn't map MMIO region: No such file or directory
[luto@antithesis tools]$ sudo intel_reg_write 0xa094 0xf000^C
$ sudo ./intel_reg_read 0xa094
0xA094 : 0x0
$ sudo ./intel_reg_write 0xa094 0xf0000
Value before: 0x0
Value after: 0x70000
$ sudo ./intel_reg_read 0xa094
0xA094 : 0x70000
$ sudo cat /sys/kernel/debug/dri/0/i915_drpc_info
RC information accurate: yes
Video Turbo Mode: yes
HW control enabled: yes
SW control enabled: no
RC1e Enabled: no
RC6 Enabled: yes
Deep RC6 Enabled: no
Deepest RC6 Enabled: no
Current RC state: on
Core Power Down: no
RC6 "Locked to RPn" residency since boot: 0
RC6 residency since boot: 115522
RC6+ residency since boot: 0
RC6++ residency since boot: 0
RC6 voltage: 450mV
RC6+ voltage: 245mV
RC6++ voltage: 245mV
Are you sure that's the right register?
(Can you point me to the right section of the programming manual? I tried
awhile ago but I couldn't find it.)</pre>
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