Vivante GPU driver and 4GB DDR

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Vivante GPU driver and 4GB DDR

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dmitrykonyshev
Contributor II

Hi all,

The Vivante GPU driver fails to initialize on a system with 4GB DDR. It prints a "AXI BUS ERROR" line in the kernel messages and then prints a number of various register/memory dumps.

The driver works normally on the same system if DDR size is limited to 3GB with the "mem=3072MiB" kernel parameter.

It is a known issue? Is there a fix/workaround?

Regards,

Dmitry

vivante‌

#imx-gpu-viv

#imx8mq

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4 Replies

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Yuri
NXP TechSupport
NXP TechSupport

Hello,

 

   It is a known issue that GPU driver doesn't support 4GB memory address range in GA release.

Now NXP is working to fix this issue. Please create request / ticket for more details.

 

Support|NXP 

Have a great day,

Yuri

 

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242 Views
dmitrykonyshev
Contributor II

Thanks, Yuri. I've created a support ticket for this issue.

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242 Views
denisgrigoryev
Contributor II

Hello,

I faced the same issue. Do you already have a solution?

Regards,

Denis

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242 Views
felixradensky
Contributor IV

Hi,

The problem was fixed in L4.14.78-1.0.0-GA BSP.

Felix.