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Differential D55030

powerpc/pmap: Add support for page sizes found on E6500
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Authored by jhibbits on Feb 1 2026, 3:50 AM.
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PowerPC
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rG1fc50a4e68a1: powerpc/pmap: Add support for page sizes found on E6500
Summary

E6500 cores (MMUv2) support all powers-of-2 page sizes from 4k to 1TB,
not just powers of 4. By using the other page sizes (8k, 32k, etc) we
can save on TLB1 space, saving up to ~1/3 of used TLB1 entries.

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Repository
rG FreeBSD src repository
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Build Status
Buildable 70310
Build 67193: arc lint + arc unit

Revision Contents
Changeset List

PathSize
sys/
powerpc/
booke/
19 lines
include/
5 lines
28 lines

Diff 170924

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sys/powerpc/booke/pmap.c

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sys/powerpc/include/spr.h

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sys/powerpc/include/tlb.h

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