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Enhance rpmsg buf config#684

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tnmysh:enhance_rpmsg_buf_config
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Enhance rpmsg buf config#684
tnmysh wants to merge 2 commits into
OpenAMP:mainfrom
tnmysh:enhance_rpmsg_buf_config

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@tnmysh tnmysh commented Apr 29, 2026

tnmysh added 2 commits April 28, 2026 20:16
Introduce new feature bit that allows rpmsg buffer size via virtio
device config space. If the feature is available then, driver will set
single rpmsg buffer size from virtio device config space in the resource
table.

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
New virtio feature allows to configure rpmsg single buffer size via
virtio device config space. Hence, rx buffer size can be provided by
vdev device config space as well. If failed to calculate rx buf size
using vq descriptor, and rx buf size is available in the config space,
then use it from there.

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
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tnmysh commented Apr 29, 2026

@arnopo

we can review this one after the release.

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