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=-3.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 AA1C7C3F2CE for ; Wed, 4 Mar 2020 16:01:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 834102166E for ; Wed, 4 Mar 2020 16:01:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388109AbgCDQBk (ORCPT ); Wed, 4 Mar 2020 11:01:40 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:24628 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726561AbgCDQBk (ORCPT ); Wed, 4 Mar 2020 11:01:40 -0500 Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 024FuXSu153036 for ; Wed, 4 Mar 2020 11:01:39 -0500 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0b-001b2d01.pphosted.com with ESMTP id 2yhsv3ygnp-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 04 Mar 2020 11:01:38 -0500 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 4 Mar 2020 16:01:31 -0000 Received: from b06cxnps4075.portsmouth.uk.ibm.com (9.149.109.197) by e06smtp01.uk.ibm.com (192.168.101.131) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 4 Mar 2020 16:01:28 -0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 024G1QSt42467512 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 4 Mar 2020 16:01:26 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3EE92AE058; Wed, 4 Mar 2020 16:01:26 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F1A56AE051; Wed, 4 Mar 2020 16:01:23 +0000 (GMT) Received: from pratiks-thinkpad.ibmuc.com (unknown [9.85.81.47]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 4 Mar 2020 16:01:23 +0000 (GMT) From: Pratik Rajesh Sampat To: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org, mpe@ellerman.id.au, mikey@neuling.org, npiggin@gmail.com, vaidy@linux.ibm.com, ego@linux.vnet.ibm.com, skiboot@lists.ozlabs.org, oohall@gmail.com, psampat@linux.ibm.com, pratik.r.sampat@gmail.com Subject: [RFC 0/3] cpuidle/powernv: Interface to handle idle-stop versioning Date: Wed, 4 Mar 2020 21:31:20 +0530 X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20030416-4275-0000-0000-000003A85BE6 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20030416-4276-0000-0000-000038BD6917 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-03-04_05:2020-03-04,2020-03-04 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxscore=0 clxscore=1015 mlxlogscore=236 impostorscore=0 malwarescore=0 adultscore=0 phishscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003040117 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A design patch series illuminates the idea of handling different versions of idle-stop, the properties they support and the quirks that need to be handled before entering or after exiting stop. It also adds a functionality to identify firmware-enabled-stop and set the according bits to encapsulate the support and corresponding handling Corresponding RFC skiboot patch: https://lists.ozlabs.org/pipermail/skiboot/2020-March/016552.html Pratik Rajesh Sampat (3): Interface for an idle-stop dependency structure Demonstration of handling an idle-stop quirk version Introduce capability for firmware-enabled-stop arch/powerpc/include/asm/processor.h | 19 +++++++++++++++++ arch/powerpc/kernel/dt_cpu_ftrs.c | 30 +++++++++++++++++++++++++++ arch/powerpc/platforms/powernv/idle.c | 25 ++++++++++++++++++---- drivers/cpuidle/cpuidle-powernv.c | 3 ++- 4 files changed, 72 insertions(+), 5 deletions(-) -- 2.24.1