arm64: cpufeature: Rename BBML2_NOABORT as BBML3

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- As bbml2_noabort is functionally equivalent to bbml3,
  rename cpu/system_supports_bbml2_noabort to
  cpu/system_supports_bbml3.
  The ARM64 capability name is also renamed accordingly.

- As BBML2_NOABORT or the equivalent BBML3 is the
  kernel requirement for setting up linear map with
  block/contpte mappings and not BBML2, replace all
  bbml2 references with bbml3.

FEAT_BBML3, is introduced as part of 2025 Architecture Extensions.
https://developer.arm.com/documentation/109697/2026_03/2025-Architecture-Extensions

No functional changes are introduced with this patch.

Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Linu Cherian <linu.cherian@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>

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This commit is contained in:

Linu Cherian 2026-07-23 10:10:32 +05:30 • committed by Will Deacon

parent e4fa246243

commit 94104e3cfa

6 changed files with 50 additions and 67 deletions

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6

arch/arm64/include/asm/cpufeature.h

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30

arch/arm64/kernel/cpufeature.c

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21

arch/arm64/mm/contpte.c

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54

arch/arm64/mm/mmu.c

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4

arch/arm64/mm/proc.S

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2

arch/arm64/tools/cpucaps

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