From: Enric Balletbo i Serra <eballetb@xxxxxxxxxx> redhat/configs: automotive: Turn off ACPI Processor package for aarch64 Allowing the cpu to enter idle states can/will introduce (non-deterministic) latency. This is undesired for the automotive use case. Since ACPI_PROCESSOR selects unconditionally CPU_IDLE, we also need to disable the ACPI Processor package. For aarch64 architecture this should be fine as all the automotive platforms supported are Non-ACPI Compliant. Signed-off-by: Enric Balletbo i Serra <eballetb@xxxxxxxxxx> diff --git a/redhat/configs/rhel/automotive/generic/arm/aarch64/CONFIG_ACPI_PROCESSOR b/redhat/configs/rhel/automotive/generic/arm/aarch64/CONFIG_ACPI_PROCESSOR new file mode 100644 index blahblah..blahblah 100644 --- /dev/null +++ b/redhat/configs/rhel/automotive/generic/arm/aarch64/CONFIG_ACPI_PROCESSOR @@ -0,0 +1 @@ +# CONFIG_ACPI_PROCESSOR is not set diff --git a/redhat/configs/rhel/automotive/generic/arm/aarch64/CONFIG_CPU_IDLE b/redhat/configs/rhel/automotive/generic/arm/aarch64/CONFIG_CPU_IDLE new file mode 100644 index blahblah..blahblah 100644 --- /dev/null +++ b/redhat/configs/rhel/automotive/generic/arm/aarch64/CONFIG_CPU_IDLE @@ -0,0 +1 @@ +# CONFIG_CPU_IDLE is not set -- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3689 -- _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
