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s390/configs: Enable cpuidle driver on s390

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Enable cpuidle infrastructure, idle governor and s390 cpuidle driver by
default. They can be disabled via config options before compile or via
setting cpuidle.off kernel commandline option. When cpuidle.off=1 set,
given architecture's specific implementation is used as a fallback without
any governor or idle state support.

During runtime individual states of cpuidle driver can also be disabled
via sysfs attributes:

echo 1 > /sys/devices/system/cpu<N>/cpuidle/state<M>/disable

Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Mete Durlu 2026-06-18 14:00:19 +02:00 committed by Vasily Gorbik
parent 01c162e27a
commit debfa8d0a7
2 changed files with 4 additions and 0 deletions
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2
arch/s390/configs/debug_defconfig
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@ -29,6 +29,8 @@ CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_TEO=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y

2
arch/s390/configs/defconfig
View File

@ -27,6 +27,8 @@ CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_TEO=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y