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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>
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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>
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Currently, the network create UAPI will assume that any network type
that isn't a buffer is an index. This means that the Linux kernel NPU
driver will accept any network type value and the user won't get any
feedback that they have specified an incorrect type.
To resolve this, the Linux kernel NPU driver will now return -EINVAL if
an unknown network type is given and a test has been added to validate
this behavior.
Change-Id: Ib7d9f5d5451897787981aae61a4e0a6650a73e05
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
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Changed several logs level from info to dbg and removed redundant or
uninformative logging in order to reduce verbosity of the kernel
modules.
Change-Id: Ie9ff7f3ae6478007ea58547380b3ddfef5d280b4
Signed-off-by: Ledion Daja <ledion.daja@arm.com>
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To not leak any information from kernel space when IOCTL calls copy data
from kernel space to user space, the source struct in the IOCTL calls is
now initialized.
Change-Id: I0825e82ccdb51ced747e160dd7385fa1ed227eaf
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
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The network info IOCTL call doesn't use any information from the user
provided struct so there is no need to copy the struct to kernel space.
Change-Id: I3f58a80ab9377e4ae39fc29068de6fd6bc3d539c
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
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In some cases, the IOCTL functions didn't update the return value
variable so the wrong value was returned from the IOCTL calls.
Change-Id: I56529f8fb03cec52dbc555d5ed3d4e68e4bfab70
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
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To not leave behind any data in memory from buffers, inferences and
networks, the memory allocated for them is now cleared before it is
freed.
Change-Id: I68c221b190e78f9b4c5022016c38f4ced5e78166
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
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The 'struct ethosu_device' has been passed as argument to classes.
This creates a circular dependency dependency and it gives all
classes full visibility to all resources in the device struct. This
patch removes the circular dependency.
Using device_lock() and device_unlock() to for synchronization.
Change-Id: I8322e6530c72d7bd67f48f411b4f14b612be2706
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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
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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
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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
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Add UAPI and core message that allows user space space to fetch
information about network models built into the firmware.
Change-Id: Ic92529bce3edd0a5499e691a566bd065da2a72ad
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Support referencing a network model by index that has been built into
the firmware binary.
Change-Id: Idd5294376ea82503dfeafe1203dcc0694d296dfe
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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
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Change-Id: I14b6becc908a0ac215769c32ee9c43db192ae6c8
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