| Age | Commit message (Collapse) | Author |
|---|
|
As a first step to have a clearer separation of the different parts of
the kernel driver, the source files have been placed into separate
directories according to their purpose and the different parts are only
allowed to use headers from another part in the include folder.
Files have been renamed accordingly to namespace them by their purpose.
Change-Id: I75e09ebf0002c99a22b6d4b09d34504d186c32b3
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
|
|
To not allow the buffer for a network instance to be changed after
creation, the create network UAPI will now take the network model data
as a user buffer. The content of the user buffer is copied into an
internally allocated DMA buffer that cannot be accessed by the user.
This breaks the current API so the Linux kernel NPU driver version and
the driver library version have been given major version bumps. All the
tests, documentation and other applications affected by the changes have
been updated accordingly.
Change-Id: I25c785d75a24794c3db632e4abe5cfbb1c7ac190
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
|
|
Currently, the mailbox uses the rpmsg_send function to send messages,
which will block for up to 15 seconds if there is no TX buffer available
for the message. This is an issue because the device mutex is locked
while waiting and the receive callback for messages uses the same mutex
to prevent concurrent access so no received messages can be handled
while waiting for a TX buffer.
To resolve this, the mailbox has been changed to use the rpmsg_trysend
function, which will return directly if there is no TX buffer available,
together with a wait queue. While waiting in the queue to send the
message, the device mutex is released to not block the receive callback
and other users of the mutex.
Change-Id: I34fbfd21167b49fb83744ab2473ab02632a809ee
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
|
|
To ensure that the Linux kernel NPU driver and the firmware used are
compatible, the NPU driver will now request and verify the protocol
version when setting up the device during the probing.
Change-Id: I13bca96bf6f98ca90dc79e11ae637c269c2a5eec
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
|
|
The IDR instance must be protected against concurrent access and the
device mutex in the kernel driver should be used to protect it. However,
the device mutex is not locked when an inference is released or when the
mailbox is cleared which means the IDR is not protected in these
instances.
To resolve this, the missing mutex locks have been added and the
functions using the IDR instance have been updated to make it clearer
that the device mutex is expected to be locked when called.
Change-Id: Id0b314db556836c36663d6481806b7c113e55e5f
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
|
|
When the kernel driver handles incoming rpmsg messages, it uses the ID
in the message header to find the corresponding mailbox message. The
mailbox messages are stored as a generic message struct that is later
cast to the specific message type.
There is currently no type information stored in the generic message
struct so only the ID is used to distinguish between the mailbox
messages. This means if an incorrect ID is received that matches a
mailbox message with a different type, the kernel driver will cast the
message struct to the wrong type.
Type information has now been added to the generic message struct and
will be checked when trying to find the corresponding mailbox message so
both the ID and type must be correct to find a matching message.
Change-Id: Ifdbceea6ec4ae7078f424a32ce1ff5474bd22fef
|
|
The Ethos-U kernel driver has been converted from a
platform driver with a custom firmware interface into a
rpmsg driver.
Change-Id: I9ae449f5e79eb02924e6630611d0893e5fec86be
|
|
Removing watchdog and firmware reset as a preparations for the
migrations to rpmsg.
Change-Id: Ic1053e3f4301ecadbde8c59dbaed437625a0a5ea
|
|
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
|
|
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
|
|
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: Id5aa197312c88b0c448dc085d8477ed67da24724
|
|
Introduce a 32b magic for each message. Verify the magic for
all incoming messages.
Add reset function - in case of protocol error, effectively
reset/empty the incoming queue.
Add an error message type and message
Add version request/response
Verify payload length of responses (when applicable)
Change-Id: I8aadd4012024492533d52e2cdb38630fce5c36e2
|
|
Add PMU configuration information to inference creation.
Change-Id: Id8a69517a5d3e4822dbaf46f76cadb2700b3d981
|
|
Build flatbuffers library.
Update network class to extract IFM and OFM dimensions from the tflite
file.
Update the uapi and core apis to support up to 16 IFM and OFM buffers
per inference.
Change-Id: I2f2f177aa4c2d5f9f50f23eb33c44e01ec2cbe09
|
|
Change-Id: I14b6becc908a0ac215769c32ee9c43db192ae6c8
|
