From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40E11C33C9E for ; Thu, 30 Jan 2020 11:23:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 12C612083E for ; Thu, 30 Jan 2020 11:23:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727027AbgA3LXq (ORCPT ); Thu, 30 Jan 2020 06:23:46 -0500 Received: from foss.arm.com ([217.140.110.172]:51236 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726902AbgA3LXq (ORCPT ); Thu, 30 Jan 2020 06:23:46 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EBFFB328; Thu, 30 Jan 2020 03:23:45 -0800 (PST) Received: from bogus (e103737-lin.cambridge.arm.com [10.1.197.49]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8139E3F67D; Thu, 30 Jan 2020 03:23:44 -0800 (PST) Date: Thu, 30 Jan 2020 11:23:38 +0000 From: Sudeep Holla To: John Garry Cc: rjw@rjwysocki.net, lenb@kernel.org, jeremy.linton@arm.com, arnd@arndb.de, olof@lixom.net, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, guohanjun@huawei.com, gregkh@linuxfoundation.org, Sudeep Holla Subject: Re: [PATCH RFC 1/2] ACPI/PPTT: Add acpi_pptt_get_package_info() API Message-ID: <20200130112338.GA54532@bogus> References: <1580210059-199540-1-git-send-email-john.garry@huawei.com> <1580210059-199540-2-git-send-email-john.garry@huawei.com> <20200128123415.GB36168@bogus> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200128123415.GB36168@bogus> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Tue, Jan 28, 2020 at 12:34:15PM +0000, Sudeep Holla wrote: > On Tue, Jan 28, 2020 at 07:14:18PM +0800, John Garry wrote: > > The ACPI PPTT ID structure (see 6.2 spec, section 5.2.29.3) allows the > > vendor to provide an identifier (or vendor specific part number) for a > > particular processor hierarchy node structure. That may be a processor > > identifier for a processor node, or some chip identifier for a processor > > package node. > > > > Unfortunately, there were plans to deprecate this in favour of the new > SOC_ID SMCCC API[1]. I am not sure if you or anyone in your company have > access to UEFI ASWG mantis where you can look for the ECR for the PPTT > Type 2 deprecation. I understand it's not ideal, but we need to converge, > please take a look at both before further discussion. > > I personally would not prefer to add the support when I know it is getting > deprecated. I am not sure on kernel community policy on the same. > OK, the details on the proposal to deprecate can be now found in UEFI bugzilla [1] -- Regards, Sudeep [1] https://bugzilla.tianocore.org/show_bug.cgi?id=2492