Re: [PATCH] powerpc: update ibm,client-architecture
From: Joel Schopp <hidden>
Date: 2009-12-21 18:15:43
From: Joel Schopp <hidden>
Date: 2009-12-21 18:15:43
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Subject: Re: [PATCH] powerpc: update ibm,client-architecturePlease give this a more appropriate name.
Any suggestions?
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In order to boot with more than 64 cores on machines that support the ibm,client-architecture RTAS call a new field has been added to the structure. This patch updates that field and adds a few others in the process.Please detail what these are here.
OK.
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+ W(NR_CPUS/4), /* max cores supported */4?
4 is the new 2. Since you don't know the actual threads per core at this point in boot you have to be conservative and go with the maximum number of any processor. See page 4 of these charts: http://www.power.org/events/powercon09/taiwan09/IBM_Overview_POWER7.pdf
Can we do this now or remove the comment. Maybe UTS_RELEASE or something like that.
I'll just remove the comment for now.