linux-kernel - Re: [PATCH v7 00/10] New DRM accel driver for Rockchip's RKNN NPU

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Message-ID: <2217684.TLkxdtWsSY@phil>
Date: Thu, 19 Jun 2025 11:01:25 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Oded Gabbay <ogabbay@...nel.org>,
 Jonathan Corbet <corbet@....net>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Sumit Semwal <sumit.semwal@...aro.org>,
 Christian König <christian.koenig@....com>,
 Sebastian Reichel <sebastian.reichel@...labora.com>,
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>,
 Kever Yang <kever.yang@...k-chips.com>, Robin Murphy <robin.murphy@....com>,
 Daniel Stone <daniel@...ishbar.org>, Da Xue <da@...re.computer>,
 Jeff Hugo <jeff.hugo@....qualcomm.com>, Tomeu Vizoso <tomeu@...euvizoso.net>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, linux-doc@...r.kernel.org,
 linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
 Tomeu Vizoso <tomeu@...euvizoso.net>, Jeff Hugo <jeff.hugo@....qualcomm.com>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH v7 00/10] New DRM accel driver for Rockchip's RKNN NPU

Am Freitag, 6. Juni 2025, 08:28:20 Mitteleuropäische Sommerzeit schrieb Tomeu Vizoso:
> This series adds a new driver for the NPU that Rockchip includes in its
> newer SoCs, developed by them on the NVDLA base.
> 
> In its current form, it supports the specific NPU in the RK3588 SoC.
> 
> The userspace driver is part of Mesa and an initial draft can be found at:
> 
> https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29698
> 
> Signed-off-by: Tomeu Vizoso <tomeu@...euvizoso.net>
> ---
> Changes in v7:
> - Actually enable process isolation by allocating its own IOMMU domain
>   to each DRM client.
> - Link to v6: https://lore.kernel.org/r/20250604-6-10-rocket-v6-0-237ac75ddb5e@tomeuvizoso.net

I was able to successfully run the SSDLite MobileDet model, detecting
elements correctly on that "Sounds of New York" youtube video all the
demos seem to be using ;-) - on a rk3588-tiger board.

NPU needed like 30ms per frame or so and also detected the expected
things, so

Tested-by: Heiko Stuebner <heiko@...ech.de>