From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian.Hinkelbein@t-online.de (Christian Hinkelbein) Date: Sat, 17 Jan 2004 18:47:10 +0000 Subject: Re: dma restriction on Itanium 2 Message-Id: <4009832E.9080702@ti.uni-mannheim.de> List-Id: References: <1074304095.6384.13.camel@kbiswas-dt.s2iotech.com> In-Reply-To: <1074304095.6384.13.camel@kbiswas-dt.s2iotech.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org Grant Grundler wrote: > Yes. HPUX has a similar interface for DMA mapping but a completely > different VM subsystem. Linux guarantees contiguous physical blocks > for multi-page memory allocations. HPUX does not. The linux DMA > subsystem uses that assumption. you are talking about kernel-mode __get_free_pages and kmalloc, and not user-mode malloc, arent you? christian