Change-Id: I69d0acf67327424809397f5fcf236b99bc980d71

Kshitij Sisodia authored Sep 30, 2022 and Kristofer Jonsson committed Oct 25, 2022

Python `ethosu_driver` could be built as part of Arm Ethos-U Linux
driver library CMake flow.

See driver_library/python/README.md for more details.

Change-Id: I177a890add5c13df9a839f4f43621f972afe5ab1
Signed-off-by: Kshitij Sisodia <kshitij.sisodia@arm.com>

Change-Id: Ib21a9692e0a8f78cf584ab6ee3fadc0568822e88

These tests are run with a special custom firmware

Change-Id: I0dfcae1fbaa1287d4b52fd8f6c802bebb5248d3b

Change-Id: I303f1424eb46576847312672f7ed5ac03c05aee1

That platform has been replaced by Corstone-1000

Change-Id: I2dd6e190cbbc84c02f101bd6214c802585d8ca25

Add logging class for driver library. Log severity can be configured
using an environment variable.

Add information to prints in kernel space.

Change-Id: I19a1078869733746726515a6cafb79110314066d

Once the inference file descriptor has been created the inference
release must be handled by the file descriptor release callback.

Change-Id: Ic514983e85821ea3893e11c5c682610f67d1ae31

Reduce queue capacity by one byte, else it will not be possible to
distinguish between an empty and full queue.

Change-Id: Ia243a7175833826dc816d536cc79ac5a252f3e3a

The error code from the core side was not correctly propagated to
user space.

Change-Id: I40e502f8dc3a77de064f441beeb62603d013e318

The padding is important to separate the read- and write indices by
at least one cache line, to prevent cache clean and invalidation to
corrupt data for the remote CPU.

Change-Id: I1d50ac6c63ef4cb3e11b0c293aefaac34ac8eb1f

Per Astrand authored Apr 06, 2022 and Kristofer Jonsson committed Jun 01, 2022

Add reset controller driver for external system.
The driver is instantiated for each subsystem reset needed to control.

Change-Id: I481e56124de30b807858ca3f5fe8f78fc18502ce

ETHOSU_IOCTL_CAPABILITIES_REQ is a read ioctl with a parameter.

Change-Id: Ife20d4de86351053600e6c6ba174dc40896f0aef

Avoid to use pointers to kernel memory as identify messages, prior this
change, if memory is reused that can lead to unexpected conflicts.

Remove ref counting from capabilities and network_info since memory is
freed in only one place.

Finally, extract the capabilities code in its own files.

Change-Id: I9ab7257f3ab85fa3347be65b3739e0daf9b5a441

Change-Id: Ic5d98c108593a16034c7dbc18043bbee13c31833

Per Astrand authored May 18, 2022 and Kristofer Jonsson committed May 18, 2022

Avoid undefined behaviour from calling dma_alloc_coherent with
requested size=0 as reported by UBSAN.

Change-Id: I1732759464f1d88259edeea099b1729f4ae6b86f

strscpy copies max destination size -1 chars and ensures NULL
termination.  It also return an error if the destination buffer is too
small.

Change-Id: I88e9e5020b2b26ca50c12ae845dad070855a8bde

If an inference fails to be cancelled and it is still in a pending
state, reset the whole firmware.  Indeed the assumption is that
something is at fault on the firmware side and it is not progressing.

Change-Id: I2f568b2167d86cda3cb96a5e83551b018f5fc55d

Send cancel inference messages to the ethosu subsystem to abort
inference execution there.  Also mark inference as aborted in the
linux driver stack itself, so pending inference messages are not
resent when resetting the firmware.

Change-Id: I244c2b119fd7995d14e3859815abf2a00c7f0583

Change-Id: I62e13df69c712ed4cf70766429b4cb13fc9c9dcb

The .da_to_va has different signatures for different kernel versions.
Add kernel version checks to pick the correct one.

Change-Id: Ie25c496aa646119526867c91f244f9ad195860cd

Add scripts for gathering coverage data on target, and analyzing
coverage info on host.

Change-Id: I3bb2d0ec3757ce077638a8780779daa84cd48686

Also always rethrow exceptions not swallow them

Change-Id: I7a4b1e408858aa0d0128ca7bd6d6a7715662f9fb

There is not real need for the linux_driver_stack to know about tflite
and flatbuffers.  A better approach is to just pass the buffer to the
firmware to be processes, i.e., either parsed or executed.

This solves issues when linux_driver_stack and firmware are not in
sync with the same library versions.

Change-Id: I9b2a12e69f37f61b1ac594433a15883fb1c67b9c

Reset the firmware if it becomes unresponsive. Use ping to send
keep alive requests.

Only monitor ping and inference request messages. The other messages
pass no resources to the firmware and can be cancelled without
resetting the firmware.

Change-Id: Ifbcc370f02d79a64f25598f11376a1dc84a7a066

Implement kernel watchdog that detects when firmware becomes
unresponsive.

Change-Id: I5c5b58a56a2ce629e1fd7cabae83b61823239ea6

Add UAPI and core message that allows user space space to fetch
information about network models built into the firmware.

Change-Id: Ic92529bce3edd0a5499e691a566bd065da2a72ad

Support referencing a network model by index that has been built into
the firmware binary.

Change-Id: Idd5294376ea82503dfeafe1203dcc0694d296dfe

Change-Id: Iaf878efcbe42d7a658a76db868806114df9e4b27

Change-Id: Ia470d230b4bce152f88ab735e0a2ad2cdba80226

Lior Dekel authored Dec 02, 2021 and Kristofer Jonsson committed Dec 16, 2021

JIRA: MLBEDSW-5531
Change-Id: Ib4b6b6b0ee3995bb01029d561c4cf7eed981a303

Change-Id: I965a6f4c42fca1b3b4493e7eef3cbb75e236fe3a

Henrik Hoglind authored Nov 23, 2021 and Kristofer Jonsson committed Nov 23, 2021

Change-Id: Ic4605a22547ab797c638bfddd9719c69d495da75

linux_driver_stack: ethosu_remoteproc.c:122:14: error: initialization from incompatible pointer type

Change-Id: I50396299f4d9878bb0b43ea5acd06951e4df698e

Per Astrand authored Nov 09, 2021 and Kristofer Jonsson committed Nov 15, 2021

Change-Id: I1ad92264eb5dae672faf3f5b08a6f987148f629e

When bailing out on errors in the constructors of Buffers or Networks,
the open file descriptor should be closed since the descructor will
never be called.

Change-Id: I8e1954e9efd65b594cc9544e18d0bfbe0730f156

Adding note about that a configured Linux kernel source tree is
required to build the kernel drivers.

Change-Id: I3a4c7fd20e24731864b768051f2ce1f5714b5535

Change-Id: I5a87686aa2b4ebf7d9d6202a6c4852d34be5f9e4

Per Astrand authored Oct 25, 2021 and Kristofer Jonsson committed Nov 01, 2021

Bump the hardcoded timeout value to allow for userspaces process to
be scheduled and receive the response from the capabilities request.

Change-Id: Ia2c8a0554870cf8470a2bb40bf8ed450c10f8446

By default the logd will try to fetch the address of the print buffer
from the device tree entry, assuming there is a device tree entry
named 'print_queue'.

Change-Id: Ic4750fe793f450152ba537820adc794731aaacaf