From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hanjun Guo Subject: Re: Question about ACPI 6 and the Linux kernel Date: Tue, 04 Aug 2015 18:05:50 +0800 Message-ID: <55C08E7E.50102@linaro.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pa0-f42.google.com ([209.85.220.42]:32828 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755162AbbHDKFz (ORCPT ); Tue, 4 Aug 2015 06:05:55 -0400 Received: by padck2 with SMTP id ck2so5004264pad.0 for ; Tue, 04 Aug 2015 03:05:55 -0700 (PDT) In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Kevin Wilson , "linux-acpi@vger.kernel.org" Hi Kevin, On 08/04/2015 12:35 PM, Kevin Wilson wrote: > Hi all, > Is the current ACPI linux subsystem, that you find in the official Linus tree, > compliant (even partially) with ACPI 6 ? (which was released in April 2015) > > or is it now compliant only with ACPI 5 ? ACPI 6 have lots of new features, such as add support for NVDIMM (persistent memory), hierarchical lower-power idle states of CPUs, CPU clusters, and some support for ARM platforms (GIC, SMMU and etc.), and more... so what the specific features are you referring to? > > What are the plans for ACPI 6? Is there already some git branch for it ? For all the ACPI 6 new features, ACPICA already add its support in 4.2, and some of the ACPI driver support also is ready, such as support for persistent memory [1] is ready, and Linaro is leading the ACPI 6.0 for ARM support, but as far as I can know, some of ACPI 6.0 features are still under development at now. I think the main support for ACPI 6.0 is in Rafael's tree: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git [1]: https://lwn.net/Articles/640891/ Thanks Hanjun