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Differential D31643

arm64: add read_frequently, read_mostluy and exclusive_cache_line to linker script
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Authored by mjg on Aug 23 2021, 11:12 AM.
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rG766a7c73e92a: arm64: add read_frequently, read_mostluy and exclusive_cache_line to linker…

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mjg created this revision.Aug 23 2021, 11:12 AM
Herald added subscribers: emaste, andrew. · View Herald TranscriptAug 23 2021, 11:12 AM
mjg requested review of this revision.Aug 23 2021, 11:12 AM
andrew added inline comments.Aug 23 2021, 11:29 AM
sys/conf/ldscript.arm64
85

Why 64? If it's related to a cacheline size it should probably be 128 as some CPUs, e.g. the original ThunderX, have a 128 byte cacheline.

mjg updated this revision to Diff 94047.Aug 23 2021, 11:35 AM
  • flip to 128
mjg marked an inline comment as done.Aug 23 2021, 11:35 AM
mjg added inline comments.
sys/conf/ldscript.arm64
85

it is cache lines, yes

andrew accepted this revision.Aug 23 2021, 12:38 PM
This revision is now accepted and ready to land.Aug 23 2021, 12:38 PM
Closed by commit rG766a7c73e92a: arm64: add read_frequently, read_mostluy and exclusive_cache_line to linker… (authored by mjg). · Explain WhyAug 23 2021, 1:25 PM
This revision was automatically updated to reflect the committed changes.
mjg marked an inline comment as done.
mjg added a commit: rG766a7c73e92a: arm64: add read_frequently, read_mostluy and exclusive_cache_line to linker….

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conf/
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sys/conf/ldscript.arm64

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