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speeding up cpu_up()

Len Brown linux-pm lkml 2 versions – In review

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  1. v2 Latest2 patches 8 repliesIn review
  2. v11 patch 13 repliesSuperseded

Patches in v2 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2x86: replace cpu_up hard-coded mdelay with variable udelayDocumentation/kernel-parameters.txt arch/x86/kernel/smpboot.c+33 -10 replies
2/2x86: speed cpu_up by quirking cpu_init_udelayarch/x86/kernel/smpboot.c+35 -28 replies

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Cover letter [PATCH 0/2 v2] speeding up cpu_up()

Thanks for testing, Aravind, Borislav,

I went with Ingo's suggestion to made this a quirk. However, I went with a white-list instead of a black-list, because fewer comparisons are needed for modern processors. Families are added infrequently, and finally, we get the option to stick something other than 0 in the table if it we need to.

Let me know if I got the AMD family #'s right.

thanks,
-Len Brown, Intel Open Source Technology Center

Read the cover letter in its thread