From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <47B1FFB4.7010904@oracle.com> Date: Tue, 12 Feb 2008 12:21:08 -0800 From: Randy Dunlap MIME-Version: 1.0 Subject: Re: [PATCH]intel-iommu batched iotlb flushes References: <20080211224105.GB24412@linux.intel.com> <20080211152716.65f5a753.randy.dunlap@oracle.com> <20080212160553.GD27490@linux.intel.com> <47B1CA9F.80004@oracle.com> <20080212195532.GA29132@linux.intel.com> In-Reply-To: <20080212195532.GA29132@linux.intel.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: mgross@linux.intel.com Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: > Index: linux-2.6.24-mm1/Documentation/kernel-parameters.txt > =================================================================== > --- linux-2.6.24-mm1.orig/Documentation/kernel-parameters.txt 2008-02-12 07:12:06.000000000 -0800 > +++ linux-2.6.24-mm1/Documentation/kernel-parameters.txt 2008-02-12 11:36:07.000000000 -0800 > @@ -822,6 +822,10 @@ > than 32 bit addressing. The default is to look > for translation below 32 bit and if not available > then look in the higher range. > + strict [Default Off] > + With this option on every umap_signle operation will umap_signle ??? (again) > + result in a hardware IOTLB flush operation as opposed > + to batching them for performance. > > io_delay= [X86-32,X86-64] I/O delay method > 0x80 -- ~Randy -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org