From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752591AbeEPMCb (ORCPT ); Wed, 16 May 2018 08:02:31 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:43068 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751786AbeEPMC2 (ORCPT ); Wed, 16 May 2018 08:02:28 -0400 From: Akshay Adiga To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: npiggin@gmail.com, mpe@ellerman.id.au, ego@linux.vnet.ibm.com, Akshay Adiga Subject: [PATCH] cpuidle/powernv : init all present cpus for deep states Date: Wed, 16 May 2018 17:32:14 +0530 X-Mailer: git-send-email 2.5.5 X-TM-AS-GCONF: 00 x-cbid: 18051612-0040-0000-0000-0000043A62DB X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18051612-0041-0000-0000-0000263F79BD Message-Id: <1526472134-23757-1-git-send-email-akshay.adiga@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-05-16_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1805160123 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Init all present cpus for deep states instead of "all possible" cpus. Init fails if the possible cpu is gaurded. Resulting in making only non-deep states available for cpuidle/hotplug. Signed-off-by: Akshay Adiga --- arch/powerpc/platforms/powernv/idle.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c index 1f12ab1..1c5d067 100644 --- a/arch/powerpc/platforms/powernv/idle.c +++ b/arch/powerpc/platforms/powernv/idle.c @@ -79,7 +79,7 @@ static int pnv_save_sprs_for_deep_states(void) uint64_t msr_val = MSR_IDLE; uint64_t psscr_val = pnv_deepest_stop_psscr_val; - for_each_possible_cpu(cpu) { + for_each_present_cpu(cpu) { uint64_t pir = get_hard_smp_processor_id(cpu); uint64_t hsprg0_val = (uint64_t)paca_ptrs[cpu]; @@ -814,7 +814,7 @@ static int __init pnv_init_idle_states(void) int cpu; pr_info("powernv: idle: Saving PACA pointers of all CPUs in their thread sibling PACA\n"); - for_each_possible_cpu(cpu) { + for_each_present_cpu(cpu) { int base_cpu = cpu_first_thread_sibling(cpu); int idx = cpu_thread_in_core(cpu); int i; -- 2.5.5