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As there is max one device per driver handle, store the device
struct in the driver struct and get rid of the malloc call from
the device init code.
Change-Id: I0f98a78907cb322d98278e9adc314e3c05f54308
Signed-off-by: Jonny Svärd <jonny.svaerd@arm.com>
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Change-Id: I28d7cb72c149a636a4f1d8ca6931316486b1829a
Signed-off-by: Jonny Svärd <jonny.svaerd@arm.com>
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Change-Id: Ic370f071eb4f3ed83cd9e5a6b587d7d527c37825
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Add an asynchronous API to the driver. The current synchronous API
is now using the new async API internally. The main new functions
are ethosu_invoke_async() and ethosu_wait(). Every successfull call
to ethosu_invoke_async() must be followed by a call to ethosu_wait()
to get the status of the inference. The wait function can be called
in a blocking or non-blocking mode by specifying the `block`
argument to true/false. The regular synchronous invoke function is
implemented as a invoke_async followed by a wait(block=true) call.
Short sommary of changes:
- Add an internal ethosu_job struct to keep track of
inference data and job state.
- Use async API in blocking mode for normal flow
- Change default semaphore implementation to binary type
- Move error prints out of interrupt context
- Move ethosu_inference_begin() callback to right before HW invoke
- Always call ethosu_inference_end() callback, even in case of errors
- On NPU error, do not keep NPU powered after being reset
Change-Id: If4c3c46e3c6732a669e17251bd848dea5765a490
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Small bugfix to a print in driver
Change-Id: I277a441a9f65c647c338b92af5a908176929102c
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A continuation of the spring clean/refactor work. Create a
better separation between driver and device(s).
A short summary of what this commit contains:
- Split device and driver
- Simplify and hide the internal device interface
- Remove (broken) abort inference functionality
- Refactoring of structure
- Optimizations and bugfixes
Change-Id: I8988bc5f163f9ea62add2a933e4f100a82cc8d35
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