[nrf fromlist] soc: nordic: Add support for IRONside calls #2803
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SebastianBoe
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jonathannilsen
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karstenkoenig
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IRONside calls are remote procedure calls which comprise the runtime interface of Nordic IRONside SE. They are realized using a simple IPC mechanism. A local domain (client) issues requests to the server by exchanging data in shared memory, which is divided into evenly sized buffers. The client selects a buffer, writes a request into it, and sends it to the server. The server processes that request and writes a response into the same buffer before returning it to the client. This patch adds the initial client-side implementation on top of MBOX. It features cache management and a blocking alloc/dispatch/release API for synchronous, zero-copy transfers. A new devicetree binding is added to support this implementation. It is patterned after the `zephyr,ipc-*` bindings, where each node associates a pair of mailboxes and a shared memory region. Signed-off-by: Grzegorz Swiderski <[email protected]> (cherry picked from commit 47df9ec)
Applied as noup because of conflicts with: 246cb42 [nrf fromlist] soc: add ironside boot report Upstream PR #: 88937 Define `ipc_conf_iron.dtsi` and `memory_map_iron.dtsi`. In the future, they will be merged with the base `ipc_conf.dtsi` and `memory_map.dtsi` respectively. For now, they are used to replace a few devicetree nodes when building for `nrf54h20dk/nrf54h20/*/iron` board targets. Additional changes are included: * The IPC configuration includes new "nordic,ironside-call" nodes. * The memory map includes an updated RAM20 layout. Its subregions are placed under the `/reserved-memory` node like before. * The memory map also includes an updated MRAM layout. Partitions are now placed under a plain "fixed-partitions" node. MCUboot-specific node labels are applied in `cpuapp.dts`. Signed-off-by: Grzegorz Swiderski <[email protected]>
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Upstream PR #: 88937
manifest-pr-skip