support Candence Tensilica HIFI4 DSP on libmetal

[mrzhuyuanheng]

hi!
Is there any plan to support Candence Tensilica HIFI4 DSP processor on libmetal?
if i want to suport this processor myself, how should i do ?

[edmooring]

There is a set of porting guidelines at https://github.com/OpenAMP/open-amp/wiki/OpenAMP-Porting-GuideLine
These are a good starting point. What is your use case? I don't see any support for the Cadence HiFi4 on the Linux kernel remoteproc side.

[mrzhuyuanheng]

thanks !

I'm new to open-amp. I want to support for the Cadence HiFi4 on the RTOS remoteproc side rather than linux.
my environment lists as follow:

• processor: similiar to NXP i.MXRT600 which also have a AP core (Arm® Cortex®-M33) and CP core (Cadence® Tensilica® HiFi 4 audio DSP core)
• system: AP(use zephyr), CP(use zephyr or xos(like freeRTOS))

I want to use open-amp on both AP and CP. AP and CP all use RTOS system. and i'm evaluating the feasibility.

since libmetal support arm processor, AP can directly use libmetal and open-amp on zephyr. AP processor is Tensilica, which libmetal don't support, so i want to porting libmetal on it.

how do you think it? Do you have any good suggestions?

[xiaoxiang781216]

We have run OpenAMP on HiFi4 DSP and connect to Cortex M process in a RTOS environment. If you are interesting, we can upstream the change(a small patch:)).

[mrzhuyuanheng]

@xiaoxiang781216 thanks for you answer ! That would be great !
I'm interesting in it. please upstream the patch

[xiaoxiang781216]

See here: #175