From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e35.co.us.ibm.com (e35.co.us.ibm.com [32.97.110.153]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e35.co.us.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 83D82DE590 for ; Thu, 27 Mar 2008 08:20:35 +1100 (EST) Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com [9.17.195.227]) by e35.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id m2QLKUhR019633 for ; Wed, 26 Mar 2008 17:20:30 -0400 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m2QLKU0b186758 for ; Wed, 26 Mar 2008 15:20:30 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m2QLKUJE030334 for ; Wed, 26 Mar 2008 15:20:30 -0600 Message-ID: <47EABE2D.7080400@linux.vnet.ibm.com> Date: Wed, 26 Mar 2008 16:20:45 -0500 From: Jon Tollefson MIME-Version: 1.0 To: linux-kernel@vger.kernel.org, Linux Memory Management List , linuxppc-dev Subject: [PATCH 0/4] 16G huge page support for powerpc Content-Type: text/plain; charset=ISO-8859-1 Cc: Adam Litke , Andi Kleen , Paul Mackerras Reply-To: kniht@linux.vnet.ibm.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This patch set builds on Andi Kleen's patches for GB pages for hugetlb posted on March 16th. This set adds support for 16G huge pages on ppc64. Supporting multiple huge page sizes on ppc64 as defined in Andi's patches is not a part of this set; that will be included in a future patch. The first patch here adds an arch callback since the 16G pages are not allocated from bootmem. The 16G pages have to be reserved prior to boot-time. The location of these pages are indicated in the device tree. Support for 16G pages requires a POWER5+ or later machine and a little bit of memory. Jon