commit | 2c01713dbeba8446b135ef19fc443b6abe098210 | [log] [tgz] |
---|---|---|
author | Jonny Svärd <jonny.svaerd@arm.com> | Mon Apr 12 15:56:44 2021 +0200 |
committer | Jonny Svärd <jonny.svaerd@arm.com> | Mon Apr 12 16:00:07 2021 +0200 |
tree | 06e53eb8f70e08a985fb7419849a503cf6bcbd3b | |
parent | 4e5e056efb0861ad05cb92914aee5ed23f86660e [diff] |
Add nullptr checks Change-Id: Ie76db24dec03a6b45c64070d89a83805397d2f1f
The Linux driver stack for Arm(R) Ethos(TM)-U provides an example of how a rich operating system like Linux can dispatch inferences to an Arm Cortex(R)-M subsystem, consisting of an Arm Cortex-M of choice and an Arm Ethos-U NPU.
The driver stack comes with a CMake based build system. Cross compile for an Arm CPU can for example be done with the provided toolchain file.
$ mkdir build $ cd build $ cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchain/aarch64-linux-gnu.cmake -DKDIR=<Kernel directory> $ make
The kernel driver uses the mailbox APIs as a doorbell mechanism.
/ { reserved-memory { #address-cells = <2>; #size-cells = <2>; ranges; ethosu_msg: ethosu_msg@80000000 { compatible = "shared-dma-pool"; reg = <0 0x80000000 0 0x00040000>; no-map; }; ethosu_reserved: ethosu_reserved@80040000 { compatible = "shared-dma-pool"; reg = <0 0x80040000 0 0x00040000>; no-map; }; }; ethosu_mailbox: mhu@6ca00000 { compatible = "arm,mhu", "arm,primecell"; reg = <0x0 0x6ca00000 0x0 0x1000>; interrupts = <0 168 4>; interrupt-names = "npu_rx"; #mbox-cells = <1>; clocks = <&soc_refclk100mhz>; clock-names = "apb_pclk"; }; ethosu { #address-cells = <2>; #size-cells = <2>; compatible = "arm,ethosu"; reg = <0 0x80000000 0 0x00010000>, <0 0x80010000 0 0x00010000>; reg-names = "in_queue", "out_queue"; memory-region = <ðosu_reserved>; dma-ranges = <0 0x60000000 0 0x80000000 0 0x20000000>; mboxes= <ðosu_mailbox 0>, <ðosu_mailbox 0>; mbox-names = "tx", "rx"; }; };
The kernel drivers are provided under a GPL v2 license. All other software componantes are provided under an Apache 2.0 license.
Please see LICENSE-APACHE-2.0.txt and LICENSE-GPL-2.0.txt for more information.
The Arm Ethos-U project welcomes contributions under the Apache-2.0 license.
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Author: John Doe \<john.doe@example.org\> Date: Mon Feb 29 12:12:12 2016 +0000 Title of the commit Short description of the change. Signed-off-by: John Doe john.doe@example.org Signed-off-by: Foo Bar foo.bar@example.org
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Please see Security.
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