arm64: tlb: Improve __TLBI_VADDR_RANGE()

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The macro returns the operand of TLBI RANGE instruction. A mask needs
to be applied to each individual field upon producing the operand, to
avoid the adjacent fields can interfere with each other when invalid
arguments have been provided. The code looks more tidy at least with
a mask and FIELD_PREP().

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Link: https://lore.kernel.org/r/20240405035852.1532010-3-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>

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Gavin Shan 2024-04-05 13:58:51 +10:00 • committed by Will Deacon

parent e3ba51ab24

commit e07255d697

1 changed files with 18 additions and 11 deletions

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arch/arm64/include/asm/tlbflush.h

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