From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755422AbbGEIiM (ORCPT ); Sun, 5 Jul 2015 04:38:12 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:60959 "EHLO mx0a-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753106AbbGEIhz (ORCPT ); Sun, 5 Jul 2015 04:37:55 -0400 From: Jisheng Zhang To: , , , , , CC: , , Jisheng Zhang Subject: [RFC PATCH 0/3] arm: psci: implement cpuidle_ops Date: Sat, 4 Jul 2015 21:01:47 +0800 Message-ID: <1436014910-1201-1-git-send-email-jszhang@marvell.com> X-Mailer: git-send-email 2.1.4 MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2015-07-04_09:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 kscore.is_bulkscore=0 kscore.compositescore=1 compositescore=0.9 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 rbsscore=0.9 spamscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1506180000 definitions=main-1507040233 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We'd like to use cpuidle-arm.c for both arm and arm64 with psci as backend. For arm64, it works. But for arm, we miss cpuidle_ops, these patches try to address this issue. Has been tested on Marvell Berlin SoCs. These patches are rebased on the Mark Rutland's latest psci unification work. [PATCH 1/3] renames psci_smp.c to psci.c to prepare for the next two changes. [PATCH 2/3] enables PSCI on UP systems so that some calls like cpu_suspend can be made functional on UP too [PATCH 3/3] add the cpuidle_ops for psci. Most code is stolen from arm64, which introduce duplicated psci code, that's why it's marked as "RFC", I dunno where to put cpu_psci_cpu_init_idle() related functions. Comments are welcome! Jisheng Zhang (3): arm: psci: rename psci_smp.c to psci.c arm: psci: enable PSCI on UP systems arm: psci: add cpuidle_ops support arch/arm/kernel/Makefile | 5 +- arch/arm/kernel/psci.c | 248 +++++++++++++++++++++++++++++++++++++++++++++ arch/arm/kernel/psci_smp.c | 130 ------------------------ 3 files changed, 249 insertions(+), 134 deletions(-) create mode 100644 arch/arm/kernel/psci.c delete mode 100644 arch/arm/kernel/psci_smp.c -- 2.1.4