Bug 2047 - Use of wbinvd() macro
Summary: Use of wbinvd() macro
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/Ext/GLX (show other bugs)
Version: git
Hardware: Other Linux (All)
: high normal
Assignee: Xorg Project Team
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Blocks:
 
Reported: 2004-12-10 03:32 UTC by Stefan Dirsch
Modified: 2005-04-15 17:55 UTC (History)
4 users (show)

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i915 platform:
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Attachments
ati-pcigart.diff (325 bytes, patch)
2004-12-10 03:38 UTC, Stefan Dirsch 		no flags Details | Splinter Review
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Description Stefan Dirsch 2004-12-10 03:32:45 UTC 
in km_drm/ati_pcigart.h, there's assembly code to call the 
wbinvd (write back cache flush and invalidate) assembly insn 
on i386 and x86-64. 
 
The kernel offers to do this with the macro wbinvd() just as well. 
The advantage is that it would still even work on Xen which redefines 
the wbinvd() call according to it's needs.
Comment 1 Stefan Dirsch 2004-12-10 03:38:47 UTC 
Created attachment 1505 [details] [review]
ati-pcigart.diff
Comment 2 Stefan Dirsch 2004-12-10 03:41:05 UTC 
Dave, could you have a look at this one, please?
Comment 3 Dave Airlie 2004-12-10 03:51:20 UTC 
Looks fine to me, how urgent is it? I'll push it to Linus after 2.6.10 is
released (with the drm re-organisation..) if not, if it is I can probably push
it now...
Comment 4 Stefan Dirsch 2004-12-10 04:56:14 UTC 
Sorry, I need to ask the author of the patch (Kurt Garloff) first ...
Comment 5 Stefan Dirsch 2004-12-10 05:02:50 UTC 
Just got a response by Kurt. He told me that it's not urgent at all. We would 
like to have it upstream in early 2005, so we can get rid of the the hack for 
our kernel-xen specfile for the next SuSE release.
Comment 6 Stefan Dirsch 2005-04-16 10:55:03 UTC 
This is already fixed in current kernel sources (2.6.11 ATM). ==> FIXED

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