Messages in this thread | | | From | Paul Burton <> | Subject | Re: [PATCH v4 03/19] mips: mm: Add p?d_large() definitions | Date | Wed, 6 Mar 2019 17:12:58 +0000 |
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Hi Steven,
On Wed, Mar 06, 2019 at 03:50:15PM +0000, 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 mips, we only support large pages on 64 bit. > > For 64 bit if _PAGE_HUGE is defined we can simply look for it. When not > defined we can be confident that there are no large pages in existence > and fall back on the generic implementation (added in a later patch) > which returns 0. > > CC: Ralf Baechle <ralf@linux-mips.org> > CC: Paul Burton <paul.burton@mips.com> > CC: James Hogan <jhogan@kernel.org> > CC: linux-mips@vger.kernel.org > Signed-off-by: Steven Price <steven.price@arm.com>
Acked-by: Paul Burton <paul.burton@mips.com>
Thanks, Paul
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