From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758189AbaJaQC2 (ORCPT ); Fri, 31 Oct 2014 12:02:28 -0400 Received: from mail-pa0-f48.google.com ([209.85.220.48]:58982 "EHLO mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753797AbaJaQCP (ORCPT ); Fri, 31 Oct 2014 12:02:15 -0400 From: Masanari Iida To: corbet@lwn.net, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lcapitulino@redhat.com Cc: Masanari Iida Subject: [PATCH] Documentation: vm: Add 1GB large page support information Date: Sat, 1 Nov 2014 01:01:57 +0900 Message-Id: <1414771317-5721-1-git-send-email-standby24x7@gmail.com> X-Mailer: git-send-email 2.1.2.555.gfbecd99 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch add 1GB large page support information on x86_64 architecture in Documentation/vm/hugetlbpage.txt. Signed-off-by: Masanari Iida --- Documentation/vm/hugetlbpage.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/vm/hugetlbpage.txt b/Documentation/vm/hugetlbpage.txt index bdd4bb9..0a2bf4f 100644 --- a/Documentation/vm/hugetlbpage.txt +++ b/Documentation/vm/hugetlbpage.txt @@ -2,7 +2,8 @@ The intent of this file is to give a brief summary of hugetlbpage support in the Linux kernel. This support is built on top of multiple page size support that is provided by most modern architectures. For example, i386 -architecture supports 4K and 4M (2M in PAE mode) page sizes, ia64 +architecture supports 4K and 4M (2M in PAE mode) page sizes, x86_64 +architecture supports 4K, 2M and 1G (SandyBridge or later) page sizes. ia64 architecture supports multiple page sizes 4K, 8K, 64K, 256K, 1M, 4M, 16M, 256M and ppc64 supports 4K and 16M. A TLB is a cache of virtual-to-physical translations. Typically this is a very scarce resource on processor. -- 2.1.2.555.gfbecd99