Request custom-device (drp-ai-device) interface for rzv-ai-applications

store-requests privileged-interfaces
1 
name: rzv-ai-applications
description: |
  This snap contains selected AI applications from renesas-rz/rzv_ai_sdk, built for RZ/V2H.
  The DRP-AI TVM runtime is staged from renesas-rz/rzv_drp-ai_tvm, v2.5.1.
snapcraft: https://github.com/canonical/rzv_ai_applications/blob/main/snap/snapcraft.yaml
slots:
  drp-ai-slot:
    interface: custom-device
    custom-device: drp-ai-device
    devices:
      - /dev/drpai0
      - /dev/drp1
      - /dev/udmabuf
      - /dev/rgnmm
      - /dev/rgnmmbuf

plugs:
  gpu-2404:
    interface: content
    target: $SNAP/gpu-2404
    default-provider: mesa-2404
  drp-ai-plug:
    interface: custom-device
    custom-device: drp-ai-device

This snap is used to run AI application demos of our (Canonical) customer (Renesas) on their RZ/V2H board. The snap requires custom-device interface (“drp-ai-device”) to be able to access these devices:

  • /dev/drpai0: control node for the DRP-AI accelerator.

  • /dev/drpai1: control node for the DRP-AI accelerator for codec and opencv accelerator.

  • /dev/udmabuf: u-dma-buf manager; creates/destroys DMA buffers.

  • /dev/rgnmm: Renesas graphics memory allocator

  • /dev/rgnmmbuf: buffer node for the graphics memory allocator.

Note 1: this is not a request for auto connection, only for custom-device.

Note 2: this snap is only for the Renesas RZ/V2H board.

2

This request has been added to the queue for review by the @reviewers team.

3

Hello @devrim,

In alignment with the mirroring sdk-collections request, this is a +1 from me for granting the requested custom-device usage for the rzv-ai-applications snap.

1 Like
4

Hello @devrim :slight_smile:

Given the snap’s functionality and the reasoning provided, this is also a +1 from my side, for the use of the custom-device interface.

One small clarification before we proceed: your snapcraft.yaml lists /dev/drp1 in the slot’s devices, but your description above refers to /dev/drpai1 (“control node for the DRP-AI accelerator for codec and opencv accelerator”). Could you confirm which device node is correct so the declaration matches the actual hardware?

1 Like
5

Hi @yomonokio, thank you for your review. The device is /dev/drp1. I mistyped it in the description. Apologies for it.

1 Like
6

Hi @yomonokio hello @elisehdy

I still cannot promote the version 2.2 of this snap to beta (or edge) channel. When should this be possible?

7

Hello @devrim,

My sincere apologies for the delay on this request. +2 votes for, 0 votes against, granting use of interface custom-device as defined to snap rzv-ai-applications. This is now live.

Please let me know if you experience any more issues uploading revisions.

1 Like
8

Thank you very much @elisehdy

1 Like