lkml.org 
[lkml]   [2022]   [Dec]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/5] PM: Fixes for Realtime systems
Date
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@redhat.com>
Cc: Brian Masney <bmasney@redhat.com>
Cc: linux-rt-users@vger.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

\
 
 \ /
  Last update: 2022-12-19 16:16    [W:0.155 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site