From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [Linaro-acpi] [RFC part1 PATCH 1/7] ACPI: Make ACPI core running without PCI on ARM64 Date: Mon, 9 Dec 2013 18:20:22 +0100 Message-ID: <201312091820.23006.arnd@arndb.de> References: <1386088611-2801-1-git-send-email-hanjun.guo@linaro.org> <201312091735.05014.arnd@arndb.de> <20131209165548.GE19163@arm.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from moutng.kundenserver.de ([212.227.17.9]:61424 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753229Ab3LIRUd (ORCPT ); Mon, 9 Dec 2013 12:20:33 -0500 In-Reply-To: <20131209165548.GE19163@arm.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Catalin Marinas Cc: Hanjun Guo , Tomasz Nowicki , Mark Rutland , Matthew Garrett , "linaro-kernel@lists.linaro.org" , Russell King - ARM Linux , "patches@linaro.org" , Olof Johansson , Linus Walleij , Daniel Lezcano , "Rafael J. Wysocki" , "linux-kernel@vger.kernel.org" , Will Deacon , "linaro-acpi@lists.linaro.org" , "linux-acpi@vger.kernel.org" , "rob.herring@calxeda.com" , Bjorn Helgaas , "linux-arm-kernel@lists.infradead.org" On Monday 09 December 2013, Catalin Marinas wrote: > CONFIG_PCI does not exist on arm64 yet (we have some internal patches > but may not be ready to be posted before the holidays; they try to share > code with other archs, so more discussions before merging). We could add > CONFIG_PCI and some dummy functions on arm64 for development (not to be > upstreamed) or Hanjun could continue to use the current patch before we > get PCI working. In the order of priorities, we'll have to merge PCI > before ACPI anyway. Well, lack of PCI support on ARM64 is a much better reason for accepting the patch than potential use on non-server platforms of course. What is the status of the PCI work though? I suspect it won't be all that hard to add minimal PCI support for a simple mmconfig plus fixed I/O space based host of the kind that qemu can easily provide. The hard part that we want to share code with other architectures is supporting pluggable host controllers, and I think we can defer that a bit. Arnd From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Mon, 9 Dec 2013 18:20:22 +0100 Subject: [Linaro-acpi] [RFC part1 PATCH 1/7] ACPI: Make ACPI core running without PCI on ARM64 In-Reply-To: <20131209165548.GE19163@arm.com> References: <1386088611-2801-1-git-send-email-hanjun.guo@linaro.org> <201312091735.05014.arnd@arndb.de> <20131209165548.GE19163@arm.com> Message-ID: <201312091820.23006.arnd@arndb.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Monday 09 December 2013, Catalin Marinas wrote: > CONFIG_PCI does not exist on arm64 yet (we have some internal patches > but may not be ready to be posted before the holidays; they try to share > code with other archs, so more discussions before merging). We could add > CONFIG_PCI and some dummy functions on arm64 for development (not to be > upstreamed) or Hanjun could continue to use the current patch before we > get PCI working. In the order of priorities, we'll have to merge PCI > before ACPI anyway. Well, lack of PCI support on ARM64 is a much better reason for accepting the patch than potential use on non-server platforms of course. What is the status of the PCI work though? I suspect it won't be all that hard to add minimal PCI support for a simple mmconfig plus fixed I/O space based host of the kind that qemu can easily provide. The hard part that we want to share code with other architectures is supporting pluggable host controllers, and I think we can defer that a bit. Arnd