arm64: Increase dmap size to 95 TiB
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Authored by scottph on Aug 20 2020, 6:59 AM.

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emaste

imp

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andrew
manu

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rS364798: arm64: Increase dmap size to 95 TiB

Summary

The Ampere Altra has physical memory populated sparsely within the
physical address space. Increase the size of the dmap to cover all
physical memory.

MFC after: 1 week
Sponsored by: Ampere Computing, Inc.

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rS FreeBSD src repository - subversion

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Event Timeline

scottph created this revision.Aug 20 2020, 6:59 AM

Herald added a reviewer: manu. · View Herald TranscriptAug 20 2020, 6:59 AM

Herald added subscribers: emaste, imp. · View Herald Transcript

scottph requested review of this revision.Aug 20 2020, 6:59 AM

Reviews D26128, D26129, D26130, D26131, D26132, D26133 deal with various arrays that explode in size when the last physical address becomes really huge.