From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: [PATCH 3/4] myri10ge - Driver core Date: Fri, 26 May 2006 20:02:00 +1000 Message-ID: <1148637720.8089.145.camel@localhost.localdomain> References: <20060517220218.GA13411@myri.com> <20060523153928.GB5938@krispykreme> <1148543810.13249.265.camel@localhost.localdomain> <200605261149.18415.netdev@axxeo.de> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: Anton Blanchard , Brice Goglin , netdev@vger.kernel.org, gallatin@myri.com, linux-kernel@vger.kernel.org Return-path: Received: from gate.crashing.org ([63.228.1.57]:12468 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S1751345AbWEZKGM (ORCPT ); Fri, 26 May 2006 06:06:12 -0400 To: Ingo Oeser In-Reply-To: <200605261149.18415.netdev@axxeo.de> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org > > No proper interface exposed, he'll have to do an #ifdef powerpc here or > > such and use __ioremap with explicit page attributes. I have a hack to > > do that automatically for memory covered by prefetchable PCI BARs when > > mmap'ing from userland but not for kernel ioremap. > > Stupid question: pci_iomap() is NOT what you are looking for, right? > > Implementation is at the end of lib/iomap.c No, there is no difference there, pci_iomap won't help for passing in platform specific page attributes for things like write combining. Ben.