From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org ([63.228.1.57]:52039 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751426AbbFYWy2 (ORCPT ); Thu, 25 Jun 2015 18:54:28 -0400 Message-ID: <1435272718.3822.7.camel@kernel.crashing.org> Subject: Re: [PATCH v7 5/9] PCI: Add pci_iomap_wc() variants From: Benjamin Herrenschmidt To: Casey Leedom Cc: Arnd Bergmann , "Luis R. Rodriguez" , "Michael S. Tsirkin" , Bjorn Helgaas , Toshi Kani , Andy Lutomirski , Juergen Gross , Tomi Valkeinen , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "xen-devel@lists.xensource.com" , linux-fbdev , Suresh Siddha , Ingo Molnar , Thomas Gleixner , Daniel Vetter , Dave Airlie , Antonino Daplas , Jean-Christophe Plagniol-Villard , Dave Hansen , "venkatesh.pallipadi@intel.com" , Stefan Bader , , David Vrabel , Jan Beulich , Roger Pau =?ISO-8859-1?Q?Monn=E9?= Date: Fri, 26 Jun 2015 08:51:58 +1000 In-Reply-To: <4985EFDD773FCB459EF7915D2A3621ADC031F8@nice.asicdesigners.com> References: <1434751712-24333-1-git-send-email-mcgrof@do-not-panic.com> <1435189081.3790.24.camel@kernel.crashing.org> <4985EFDD773FCB459EF7915D2A3621ADC02F10@nice.asicdesigners.com> ,<6806026.xb91q6Ad7G@wuerfel> <4985EFDD773FCB459EF7915D2A3621ADC031F8@nice.asicdesigners.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org List-ID: On Thu, 2015-06-25 at 21:40 +0000, Casey Leedom wrote: > Hhmmm, so what do PowerPC Drivers do when they want to take > advantage of Write Combining? Do their own Endian Swizzling > with the __raw_*() APIs? Yeah either, we need to fix our relaxed implementation (patch welcome :-) Cheers, Ben.