Forums - Does Adreno 430/530 support GPU preemption?

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Does Adreno 430/530 support GPU preemption?
zhijuyang
Join Date: 17 Jan 17
Posts: 2
Posted: Fri, 2017-03-17 13:48

Hi all,

Would anyone know that does Adreno 430 support preemption? And what about 530?

So far,  what I got is it seems that Adreno 530 supports GPU preemption, but not Adreno 430. 

Thanks in advance.

Zhiju

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jake.weinstein
Join Date: 6 Aug 16
Posts: 15
Posted: Fri, 2017-04-14 15:45

Hi there.  If you look at the MSM8994 kernel, it would appear that there is no support for GPU Preemption: https://source.codeaurora.org/quic/la/kernel/msm-3.10/tree/drivers/gpu/m...

On other kernels such as MSM8976, the Adreno 430 GPU advertises Preemption: https://source.codeaurora.org/quic/la/kernel/msm-3.10/tree/drivers/gpu/m...

 

I am unsure if hardware support is there, but Preemption does not seem to be supported in the KGSL driver on MSM8994.

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