From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from agminet02.oracle.com (agminet02.oracle.com [141.146.126.229]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 4842DDDDFE for ; Thu, 29 Nov 2007 10:21:12 +1100 (EST) Received: from agminet01.oracle.com (agminet01.oracle.com [141.146.126.228]) by agminet02.oracle.com (Switch-3.2.4/Switch-3.1.7) with ESMTP id lASLTCVA011812 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 28 Nov 2007 15:29:12 -0600 Date: Wed, 28 Nov 2007 13:28:16 -0800 From: Randy Dunlap To: kniht@linux.vnet.ibm.com Subject: Re: [PATCH 1/2] powerpc: add hugepagesz boot-time parameter Message-Id: <20071128132816.542fa4df.randy.dunlap@oracle.com> In-Reply-To: <474CF68E.1040709@us.ibm.com> References: <474CF68E.1040709@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: Linux Memory Management List , linuxppc-dev List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 27 Nov 2007 23:03:10 -0600 Jon Tollefson wrote: > This patch adds the hugepagesz boot-time parameter for ppc64 that lets > you pick the size for your huge pages. The choices available are 64K > and 16M. It defaults to 16M (previously the only choice) if nothing or > an invalid choice is specified. Tested 64K huge pages with the > libhugetlbfs 1.2 release with its 'make func' and 'make stress' test > invocations. > > This patch requires the patch posted by Mel Gorman that adds > HUGETLB_PAGE_SIZE_VARIABLE; "[PATCH] Fix boot problem with iSeries > lacking hugepage support" on 2007-11-15. > > Signed-off-by: Jon Tollefson > --- > > Documentation/kernel-parameters.txt | 1 > arch/powerpc/mm/hash_utils_64.c | 11 +-------- > arch/powerpc/mm/hugetlbpage.c | 41 ++++++++++++++++++++++++++++++++++++ > include/asm-powerpc/mmu-hash64.h | 1 > mm/hugetlb.c | 1 > 5 files changed, 46 insertions(+), 9 deletions(-) > > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt > index 33121d6..2fc1fb8 100644 > --- a/Documentation/kernel-parameters.txt > +++ b/Documentation/kernel-parameters.txt > @@ -685,6 +685,7 @@ and is between 256 and 4096 characters. It is defined in the file > See Documentation/isdn/README.HiSax. > > hugepages= [HW,X86-32,IA-64] Maximal number of HugeTLB pages. > + hugepagesz= [HW,IA-64,PPC] The size of the HugeTLB pages. Any chance of spelling it as "hugepagesize" so that it's a little less cryptic and more difficult to typo as "hugepages"? (i.e., less confusion between them) > > i8042.direct [HW] Put keyboard port into non-translated mode > i8042.dumbkbd [HW] Pretend that controller can only read data from Thanks. --- ~Randy