Feature #8534

Want AVX-512 Support

Added by Robert Mustacchi 12 months ago. Updated 11 months ago.

Status:ClosedStart date:2017-07-25
Priority:NormalDue date:
Assignee:Jerry Jelinek% Done:

100%

Category:-
Target version:-
Difficulty:Medium Tags:

Description

Intel has increased the AVX vector size to 512 bit registers on its newer processors. Allowing users to use these newer instructions requires work in the kernel and rtld.


Subtasks

Feature #8535: kernel cpuid support for new processorsClosedJerry Jelinek

Feature #8536: xsave area should size dynamically, based on CPU featuresClosedJerry Jelinek

Feature #8537: rtld needs to learn about AVX512ClosedJerry Jelinek

Feature #8538: add support for xsaveopt for improved context switchingClosedJerry Jelinek

Feature #8539: better handling for AMD-specifc *save_ctxt FP exceptionsClosedJerry Jelinek

History

#1 Updated by Electric Monk 11 months ago

  • Status changed from New to Closed

git commit 088d69f878cf3fb57556357236ef8e1c8f9d893e

commit  088d69f878cf3fb57556357236ef8e1c8f9d893e
Author: Jerry Jelinek <jerry.jelinek@joyent.com>
Date:   2017-08-16T17:06:52.000Z

    8534 Want AVX-512 Support
    8535 kernel cpuid support for new processors
    8536 xsave area should size dynamically, based on CPU features
    8537 rtld needs to learn about AVX512
    8538 add support for xsaveopt for improved context switching
    8539 better handling for AMD-specifc *save_ctxt FP exceptions
    Reviewed by: Robert Mustacchi <rm@joyent.com>
    Reviewed by: Toomas Soome <tsoome@me.com>
    Approved by: Richard Lowe <richlowe@richlowe.net>

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