TDA4VM: [TDA4VM] IPC performance issue

fu liu1

Part Number: TDA4VM

Hi expert,

We met a issue about ipc performance between A72 and r5f(MCU3_0/1), detail information as follow:

[ 186.991328] omap-mailbox 31f82000.mailbox: Try increasing MBOX_TX_QUEUE_LEN
[ 187.002944] platform 5f00000.r5f: failed to send mailbox message, status = -105
[ 187.024043] omap-mailbox 31f82000.mailbox: Try increasing MBOX_TX_QUEUE_LEN
[ 187.033701] platform 5f00000.r5f: failed to send mailbox message, status = -105
[ 187.086134] omap-mailbox 31f82000.mailbox: Try increasing MBOX_TX_QUEUE_LEN
[ 187.096941] platform 5f00000.r5f: failed to send mailbox message, status = -105
[ 187.108536] omap-mailbox 31f82000.mailbox: Try increasing MBOX_TX_QUEUE_LEN
[ 187.485227] platform 5f00000.r5f: failed to send mailbox message, status = -105

In our custom firmware(MCU3_0/1), it sends/receives a large number of msgs to/from A72, include large msg(> 100KBytes), application will meet the above issue after running a while..

SDK: 7.0

OS: Linux

Thanks!

FU.

over 4 years ago

0 Sunita Nadampalli over 4 years ago

TI__Expert 5970 points

Hi,

When the above issue happens on Linux/A72 what is the status of mcu3_0/1 core?

From the above traces it looks like R5F core is not consuming the messages from A72, hence it is not able to send any more.

Please make sure R5F core IPC Rx task is getting chance to consume the Tx messages from A72.

Thanks & Regards,

Sunita.

0 fu liu1 over 4 years ago in reply to Sunita Nadampalli

Prodigy 160 points

Due to message frequency from A72 is very high, MCU3_0/1 didn't handle these msgs in time. Can you give us some advice how to improve its performance using IPC?

0 Sunita Nadampalli over 4 years ago in reply to fu liu1

TI__Expert 5970 points

Hi,

Please share

1. How frequently you are sending messages from A72

2. for IPC to be functional both the cores should be able to service the messages ontime. What is running on MCU3_0/1? Why is it not servicing A72 messages?

Thanks & Regards,

Sunita.