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Message-Id: <20221219151503.385816-1-krzysztof.kozlowski@linaro.org>
Date: Mon, 19 Dec 2022 16:14:58 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Kevin Hilman <khilman@...nel.org>,
Ulf Hansson <ulf.hansson@...aro.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Sudeep Holla <sudeep.holla@....com>, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Adrien Thierry <athierry@...hat.com>,
Brian Masney <bmasney@...hat.com>,
linux-rt-users@...r.kernel.org
Subject: [PATCH v2 0/5] PM: Fixes for Realtime systems
Hi,
The goal is to make Linux kernel PM / PM domains / cpuidle friendlier for
Realtime systsems (PREEMPT_RT). Realtime changes regular spinlocks into
sleeping primitives, thus other parts of the code must be ready for it.
Changes since v1
================
1. Patch #1: Add missing WARN for parent domain
2. New patches 3-5 for other issues encountered with PREEMPT_RT.
Best regards,
Krzysztof
---
Cc: Adrien Thierry <athierry@...hat.com>
Cc: Brian Masney <bmasney@...hat.com>
Cc: linux-rt-users@...r.kernel.org
Krzysztof Kozlowski (5):
PM: domains: Add GENPD_FLAG_RT_SAFE for PREEMPT_RT
cpuidle: psci: Mark as PREEMPT_RT safe
cpuidle: psci: Do not suspend topology CPUs on PREEMPT_RT
PM: Allow calling dev_pm_domain_set() with raw spinlock
PM: domains: Do not call device_pm_check_callbacks() when holding
genpd_lock()
drivers/base/power/common.c | 27 ++++++++++-
drivers/base/power/domain.c | 65 +++++++++++++++++++++++++--
drivers/cpuidle/cpuidle-psci-domain.c | 3 +-
drivers/cpuidle/cpuidle-psci.c | 4 +-
include/linux/pm_domain.h | 16 +++++++
5 files changed, 107 insertions(+), 8 deletions(-)
--
2.34.1
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