Re: [PATCH v3 15/34] parisc: mm: Add p?d_large() definitions
From: Kirill A. Shutemov
Date: Fri Mar 01 2019 - 17:12:21 EST
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