Re: RFC: stop having a single global page size

[Matt Thomas <matt%3am-software.com@localhost>]

On Jan 31, 2014, at 11:46 AM, Martin Husemann <martin%duskware.de@localhost> 
wrote:

> On Fri, Jan 31, 2014 at 03:03:21PM +0000, Justin Cormack wrote:
>> Linux maps the kernel with 4MB pages to save TLB entries too, I believe.
> 
> Yes, we do that too, but I guess wired kernel memory does not really
> count for Matt's proposal.

Correct.  The above is of a more dynamic nature.

> Sparc64 actually uses 4M, 64kb and 8kb pages for various wired kernel
> mappings.

I actually proposed a size to pmap_kenter so MD code could use larger
pages for wired kernel pages.