Re: [PATCH v2] Documentation/arm64: HugeTLB page implementation

From: Will Deacon
Date: Tue Oct 09 2018 - 07:50:57 EST


On Tue, Oct 09, 2018 at 11:02:01AM +0100, Punit Agrawal wrote:
> Randy Dunlap <rdunlap@xxxxxxxxxxxxx> writes:
>
> > On 10/8/18 3:03 AM, Punit Agrawal wrote:
> >> Arm v8 architecture supports multiple page sizes - 4k, 16k and
> >> 64k. Based on the active page size, the Linux port supports
> >> corresponding hugepage sizes at PMD and PUD(4k only) levels.
> >>
> >> In addition, the architecture also supports caching larger sized
> >> ranges (composed of multiple entries) at the PTE and PMD level in the
> >> TLBs using the contiguous bit. The Linux port makes use of this
> >> architectural support to enable additional hugepage sizes.
> >>
> >> Describe the two different types of hugepages supported by the arm64
> >> kernel and the hugepage sizes enabled by each.
> >>
> >> Signed-off-by: Punit Agrawal <punit.agrawal@xxxxxxx>
> >> Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> >> Cc: Will Deacon <will.deacon@xxxxxxx>
> >> Cc: Jonathan Corbet <corbet@xxxxxxx>
> >
> > Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
>
> Thanks!
>
> Catalin, Will - I assume you'll pick this up at some point? Or do arm64
> documentation patches get routed by another tree?

Acked-by: Will Deacon <will.deacon@xxxxxxx>

Catalin can pick this up for 4.20.

Will