Bug 50248 - [IVB, VLV] cursor lp3 latency correction
Summary: [IVB, VLV] cursor lp3 latency correction
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: XOrg git
Hardware: Other All
: medium normal
Assignee: Daniel Vetter
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-05-22 14:53 UTC by Jesse Barnes
Modified: 2017-07-24 23:01 UTC (History)
4 users (show)

See Also:
i915 platform:
i915 features:


Attachments
Double cursor latency for IVB lp3 (5.17 KB, patch)
2012-12-04 09:55 UTC, Chris Wilson
no flags Details | Splinter Review
Double cursor latency for VLV sr (1.50 KB, patch)
2012-12-04 09:58 UTC, Chris Wilson
no flags Details | Splinter Review

Description Jesse Barnes 2012-05-22 14:53:48 UTC
Should be 2x what we have now.

http://dt.igk.intel.com/wa_database/DetailsView/Show?wa_name_id=1251
Comment 1 Chris Wilson 2012-12-04 09:55:35 UTC
Created attachment 70991 [details] [review]
Double cursor latency for IVB lp3
Comment 2 Chris Wilson 2012-12-04 09:58:13 UTC
Created attachment 70992 [details] [review]
Double cursor latency for VLV sr
Comment 3 Chris Wilson 2012-12-17 11:58:42 UTC
commit af6c4575afada1a9c411e42439b5d40908865b11
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Dec 11 12:01:43 2012 +0000

    drm/i915: Double the cursor self-refresh latency on Valleyview
    
    It operates at twice the declared latency, so double the latency value
    used for the cursor watermark calculation.
    
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50248
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    CC: Jesse Barnes <jbarnes@virtuousgeek.org>
    Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
    Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

commit c43d0188d7be6e45eb52a27ed9df714ca2e04e0a
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Dec 11 12:01:42 2012 +0000

    drm/i915: Fixup cursor latency used for IVB lp3 watermarks
    
    It operates at twice the declared latency, so adjust the computation to
    avoid potential flicker at low power.
    
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50248
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    CC: Jesse Barnes <jbarnes@virtuousgeek.org>
    Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
    Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>


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