From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965301AbeALVYi (ORCPT + 1 other); Fri, 12 Jan 2018 16:24:38 -0500 Received: from mail-pf0-f193.google.com ([209.85.192.193]:37437 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965156AbeALVYg (ORCPT ); Fri, 12 Jan 2018 16:24:36 -0500 X-Google-Smtp-Source: ACJfBot9Mh/sJ139CBEk6iyb7BEtX7mAut3XmRClcA6pMenpOz/pYPIE6Lfjljq9/Zi78KsVCrmz+g== From: Derek Basehore To: linux-kernel@vger.kernel.org Cc: linux-pm@vger.kernel.org, rafael.j.wysocki@intel.com, tglx@linutronix.de, briannorris@chromium.org, marc.zyngier@arm.com, Derek Basehore Subject: [PATCH 0/8] GICv3 Save and Restore Date: Fri, 12 Jan 2018 13:24:14 -0800 Message-Id: <20180112212422.148625-1-dbasehore@chromium.org> X-Mailer: git-send-email 2.16.0.rc1.238.g530d649a79-goog Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: This patch set adds saving and restoring the GIC on v3 implementations through a devicetree flag. The new CPU_PM state was the cleanest way to synchronize the save and restore (that I figured out) with other PM operations since this isn't going into any PSCI implementations (at least not in ARM-Trusted-Firmware). I've verified these patches on a Rockchip RK3399 platform (some devicetree changes needed). This included turning off the power rail for the GIC during suspend. Derek Basehore (8): cpu_pm: add syscore_suspend error handling lib/iomap_copy: add __ioread64_copy() cpu_pm: Add SYSTEM_PM state irqchip/gic-v3: add ability to save/restore GIC/ITS state DT/arm,gic-v3: add save-suspend-state property irqchip/gic-v3-its: add ability to resend MAPC on resume DT/arm,gic-v3: add resend-mapc-on-resume property irqchip/gic-v3: add power down/up sequence .../bindings/interrupt-controller/arm,gic-v3.txt | 43 +++ drivers/irqchip/irq-gic-v3-its.c | 136 +++++-- drivers/irqchip/irq-gic-v3.c | 391 ++++++++++++++++++++- include/linux/cpu_pm.h | 14 + include/linux/io.h | 1 + include/linux/irqchip/arm-gic-v3.h | 26 ++ kernel/cpu_pm.c | 75 ++-- lib/iomap_copy.c | 26 ++ 8 files changed, 640 insertions(+), 72 deletions(-) -- 2.16.0.rc1.238.g530d649a79-goog