From: "Rob Herring (Arm)" <robh@kernel.org>
To: "Tomeu Vizoso" <tomeu@tomeuvizoso.net>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Oded Gabbay" <ogabbay@kernel.org>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Robin Murphy" <robin.murphy@arm.com>,
"Steven Price" <steven.price@arm.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org,
linaro-mm-sig@lists.linaro.org
Subject: [PATCH RFC 0/2] accel: Add Arm Ethos-U NPU
Date: Tue, 22 Jul 2025 17:58:55 -0500 [thread overview]
Message-ID: <20250722-ethos-v1-0-cc1c5a0cbbfb@kernel.org> (raw)
The Arm Ethos-U65/85 NPUs are designed for edge AI inference
applications[0].
The driver works with Mesa Teflon. WIP support is available here[1]. The
UAPI should also be compatible with the downstream driver stack[2] and
Vela compiler though that has not been implemented.
Testing so far has been on i.MX93 boards with Ethos-U65. Support for U85
is still todo. Only minor changes on driver side will be needed for U85
support.
A git tree is here[3].
Rob
[0] https://www.arm.com/products/silicon-ip-cpu?families=ethos%20npus
[1] https://gitlab.freedesktop.org/tomeu/mesa.git ethos
[2] https://gitlab.arm.com/artificial-intelligence/ethos-u/
[3] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git ethos
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
Rob Herring (Arm) (2):
dt-bindings: npu: Add Arm Ethos-U65/U85
accel: Add Arm Ethos-U NPU driver
.../devicetree/bindings/npu/arm,ethos.yaml | 79 +++
MAINTAINERS | 9 +
drivers/accel/Kconfig | 1 +
drivers/accel/Makefile | 1 +
drivers/accel/ethos/Kconfig | 10 +
drivers/accel/ethos/Makefile | 4 +
drivers/accel/ethos/ethos_device.h | 186 ++++++
drivers/accel/ethos/ethos_drv.c | 412 ++++++++++++
drivers/accel/ethos/ethos_drv.h | 15 +
drivers/accel/ethos/ethos_gem.c | 707 +++++++++++++++++++++
drivers/accel/ethos/ethos_gem.h | 46 ++
drivers/accel/ethos/ethos_job.c | 527 +++++++++++++++
drivers/accel/ethos/ethos_job.h | 41 ++
include/uapi/drm/ethos_accel.h | 262 ++++++++
14 files changed, 2300 insertions(+)
---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250715-ethos-3fdd39ef6f19
Best regards,
--
Rob Herring (Arm) <robh@kernel.org>
next reply other threads:[~2025-07-22 22:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-22 22:58 Rob Herring (Arm) [this message]
2025-07-22 22:58 ` [PATCH RFC 1/2] dt-bindings: npu: Add Arm Ethos-U65/U85 Rob Herring (Arm)
2025-07-22 22:58 ` [PATCH RFC 2/2] accel: Add Arm Ethos-U NPU driver Rob Herring (Arm)
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