Re: [PATCH v4 5/6] arm64: cpufeature: Rename BBML2_NOABORT as BBML3

[Linu Cherian <linu.cherian@arm.com>]

On Thu, Aug 06, 2026 at 06:11:32PM +0100, Will Deacon wrote:
> On Thu, Jul 23, 2026 at 10:10:32AM +0530, Linu Cherian wrote:
> > - 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>
> > ---
> >  arch/arm64/include/asm/cpufeature.h |  6 ++--
> >  arch/arm64/kernel/cpufeature.c      | 30 +++++-----------
> >  arch/arm64/mm/contpte.c             | 21 +++++------
> >  arch/arm64/mm/mmu.c                 | 54 ++++++++++++++---------------
> >  arch/arm64/mm/proc.S                |  4 +--
> >  arch/arm64/tools/cpucaps            |  2 +-
> >  6 files changed, 50 insertions(+), 67 deletions(-)
> 
> This breaks the build because you haven't updated the caller in the SMMUv3
> SVA code.
> 
> I'll push a fix on top...

Yeah, i missed that. Thanks for pointing out and the fix.

> 
> Will