From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sudeep Holla Subject: Re: [PATCH RFC 1/5] ACPI / containers : add support for ACPI0010 processor container Date: Fri, 08 May 2015 16:32:33 +0100 Message-ID: <554CD711.3090903@arm.com> References: <1430922690-6966-1-git-send-email-sudeep.holla@arm.com> <1430922690-6966-2-git-send-email-sudeep.holla@arm.com> <554C78C2.706@linaro.org> <2334052.J3vzukF2MM@vostro.rjw.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from foss.arm.com ([217.140.101.70]:53340 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751677AbbEHPcg (ORCPT ); Fri, 8 May 2015 11:32:36 -0400 In-Reply-To: <2334052.J3vzukF2MM@vostro.rjw.lan> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: "Rafael J. Wysocki" , "hanjun.guo@linaro.org" Cc: Sudeep Holla , "linux-acpi@vger.kernel.org" , "linux-pm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "ahs3@redhat.com" , Lorenzo Pieralisi On 08/05/15 15:06, Rafael J. Wysocki wrote: > On Friday, May 08, 2015 04:50:10 PM Hanjun Guo wrote: >> Hi Sudeep, >> >> On 2015=E5=B9=B405=E6=9C=8806=E6=97=A5 22:31, Sudeep Holla wrote: >>> ACPI 6.0 adds support for optional processor container device which= may >>> contain child objects that are either processor devices or other pr= ocessor >>> containers. This allows representing hierarchical processor topolog= ies. >>> >>> It is declared using the _HID of ACPI0010. It may also have _CID of >>> PNP0A05, which represents a generic container device. >> >> Container device helps support hotplug of nodes, CPUs, and memory, >> does this container device ACPI0010 used for the same purpose? > > That's correct and the patch isn't. > Thanks Rafael for the clarification. Just curious if the firmware adds _CID of PNP0A05 to support OS that don't parse processor containers, will the current code not create containers using _CID ? Regards, Sudeep