9752cbe045
This patchset is doing three things: 1. It is fixing the bogus algorithm to find the optimal number of descriptors for a given memory size. 2. It is changing values for VDEV_STATUS_SIZE and IPC_SERVICE_STATIC_VRINGS_ALIGNMENT to better align to a usual cache line size. 3. RX/TX VRINGs are now correctly aligned to MEM_ALIGNMENT (and cache line alignment). Signed-off-by: Carlo Caione <ccaione@baylibre.com>
53 lines
1.4 KiB
YAML
53 lines
1.4 KiB
YAML
# Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>
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# SPDX-License-Identifier: Apache-2.0
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description: OpenAMP (RPMsg with static VRINGs) backend
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compatible: "zephyr,ipc-openamp-static-vrings"
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include: base.yaml
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properties:
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role:
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description: OpenAMP roles
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required: true
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type: string
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enum:
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- host
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- remote
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memory-region:
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description: phandle to the shared memory region
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required: true
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type: phandle
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mboxes:
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description: phandle to the MBOX controller (TX and RX are required)
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required: true
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mbox-names:
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description: MBOX channel names (must be called "tx" and "rx")
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required: true
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zephyr,priority:
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type: array
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description: |
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WQ priority for the instance. This property is an array composed by the
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priority level and the type of priority (PRIO_COOP for cooperative or
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PRIO_PREEMPT for preemptive).
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For example for a thread priority K_PRIO_COOP(1) in DT we have
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priority = <1 PRIO_COOP>;
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or for K_PRIO_PREEMPT(2)
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priority = <2 PRIO_PREEMPT>;
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When this property is missing a default priority of <0 PRIO_PREEMPT> is
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assumed.
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zephyr,buffer-size:
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type: int
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description: |
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The size of the buffer used to send data between host and remote. Default
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value is RPMSG_BUFFER_SIZE. This property must be the same for host and
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remote and preferably a multiple of the cache line size.
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