Add MIPS super pages

svn path=/www/; revision=35499

en/projects/ideas/ideas.xml

@@ -15,7 +15,7 @@ Ideas//EN"
 <ideas>
   <cvs:keywords xmlns:cvs="http://www.FreeBSD.org/XML/CVS" version="1.0">
     <cvs:keyword name="freebsd">
-      $FreeBSD: www/en/projects/ideas/ideas.xml,v 1.144 2010/03/09 11:01:48 rwatson Exp $
+      $FreeBSD: www/en/projects/ideas/ideas.xml,v 1.145 2010/03/14 15:52:47 rwatson Exp $
     </cvs:keyword>
   </cvs:keywords>
 
@@ -97,6 +97,30 @@ these buses to be a subclass of this new base class.</p>
       </desc>
     </idea>
 
+    <idea id="mips-superpages">
+      <title>Add super page support to MIPS</title>
+
+      <desc><p><strong>Technical Contact</strong>: <a
+  href="mailto:imp@FreeBSD.org">Warner Losh</a></p>
+
+      <p>Superpage support exists only for x86-based architecturs at the
+        moment.  MIPS hardware supports a number of different page sizes
+        on a per page basis.  This could be used to implement superpages
+        for MIPS(which just uses two sizes: 4k chunks and 4M chunks).  The
+        vm system supports it generically for all platforms, but the pmap
+        for each platform must complete the implementation.  Fortunately,
+        superpages were MFC'd as one huge commit into FreeBSD 7.x, so
+        finding the relevant changes that need to be made to the mips pmap
+        won't be starting from scratch.</p>
+<p><strong>Requirements</strong>:</p>
+<ul>
+  <li>Strong C programming skills</li>
+  <li>Strong kernel skills</li>
+  <li>Strong VM skills</li>
+</ul>
+      </desc>
+    </idea>
+
     <idea id="overhaul-config">
       <title>Overhaul the config system</title>