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Date:   Sat, 2 Mar 2019 01:12:13 +0300
From:   "Kirill A. Shutemov" <>
To:     Helge Deller <>
Cc:     Steven Price <>,,
        Andy Lutomirski <>,
        Ard Biesheuvel <>,
        Arnd Bergmann <>, Borislav Petkov <>,
        Catalin Marinas <>,
        Dave Hansen <>,
        Ingo Molnar <>,
        James Morse <>,
        Jérôme Glisse <>,
        Peter Zijlstra <>,
        Thomas Gleixner <>,
        Will Deacon <>,,
        "H. Peter Anvin" <>,,,
        Mark Rutland <>,
        "Liang, Kan" <>,
        "James E.J. Bottomley" <>,
Subject: Re: [PATCH v3 15/34] parisc: mm: Add p?d_large() definitions

On Wed, Feb 27, 2019 at 07:54:22PM +0100, Helge Deller wrote:
> On 27.02.19 18:05, Steven Price wrote:
> > walk_page_range() is going to be allowed to walk page tables other than
> > those of user space. For this it needs to know when it has reached a
> > 'leaf' entry in the page tables. This information is provided by the
> > p?d_large() functions/macros.
> > 
> > For parisc, we don't support large pages, so add stubs returning 0.
> We do support huge pages on parisc, but not yet on those levels.

Just curious, what level do parisc supports huge pages on?
AFAICS, it can have 2- or 3- level paging and the patch defines helpers
for two level: pgd and pmd. Hm?

 Kirill A. Shutemov

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