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The Linux kernel configuration item CONFIG_ARM_SCMI_TRANSPORT_VIRTIO_ATOMIC_ENABLE
has multiple definitions:
drivers/firmware/arm_scmi/transports/Kconfig
The configuration item CONFIG_ARM_SCMI_TRANSPORT_VIRTIO_ATOMIC_ENABLE:
CONFIG_ARM_SCMI_TRANSPORT_VIRTIO
Enable support of atomic operation for SCMI VirtIO based transport.
If you want the SCMI VirtIO based transport to operate in atomic mode, avoiding any kind of sleeping behaviour for selected transactions on the TX path, answer Y.
Enabling atomic mode operations allows any SCMI driver using this transport to optionally ask for atomic SCMI transactions and operate in atomic context too, at the price of using a number of busy-waiting primitives all over instead. If unsure say N.
drivers/firmware/arm_scmi/Kconfig
The configuration item CONFIG_ARM_SCMI_TRANSPORT_VIRTIO_ATOMIC_ENABLE:
CONFIG_ARM_SCMI_TRANSPORT_VIRTIO
Enable support of atomic operation for SCMI VirtIO based transport.
If you want the SCMI VirtIO based transport to operate in atomic mode, avoiding any kind of sleeping behaviour for selected transactions on the TX path, answer Y.
Enabling atomic mode operations allows any SCMI driver using this transport to optionally ask for atomic SCMI transactions and operate in atomic context too, at the price of using a number of busy-waiting primitives all over instead. If unsure say N.
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