Bug 80073

Summary: [IVB] GPU device frequency can't increase to the largest one
Product: DRI Reporter: liulei <lei.a.liu>
Component: DRM/IntelAssignee: Damien Lespiau <damien.lespiau>
Status: CLOSED NOTABUG QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: unspecified   
Hardware: All   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
test script none

Description liulei 2014-06-16 03:10:55 UTC 
Created attachment 101131 [details]
test script

==System Environment==
--------------------------
Platform: Ivybrige
kernel:   (drm-intel-next-queued)868d665b43473e230d560d5186535270a3d57a19

==kernel==
--------------------------
-nightly: b438e8793c6d18b0998d75cdf8115a5898ed21d1 (fail)
    drm-intel-nightly: 2014y-06m-13d-22h-09m-12s integration manifest
-queued: 868d665b43473e230d560d5186535270a3d57a19 (fail)
    drm/i915: Fix memory leak in intel_dsi_init() error path
-fixes: 223a6f2b975ab35d93270ea1d4fb6e0ac6b27fe6 (fail)
    drm/i915/bdw: remove erroneous chv specific workarounds from bdw code


==Bug detailed description==
---------------------------
 GPU device frequency can't increase to the largest one. It stay on lowest frequency. Get  GPU current frequency from /sys/class/drm/card0/gt_cur_freq_mhz

==Reproduce steps==
---------------------------- 
1. ./gfxturbo.sh (I attach this script)
Comment 1 Chris Wilson 2014-06-16 05:59:34 UTC 
That test is not guaranteed to raise GPU freq at all, for it misses the most important detail - if all the glxgears are able to maintain 60fps then there is no issue with running at the minimum frequency.

Please refine the test.
Comment 2 liulei 2014-06-16 06:35:59 UTC 
(In reply to comment #1)
> That test is not guaranteed to raise GPU freq at all, for it misses the most
> important detail - if all the glxgears are able to maintain 60fps then there
> is no issue with running at the minimum frequency.
> 
> Please refine the test.
Verified not a bug.

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