Re: [PATCH 1/7] accel/ivpu: Force snooping for MMU writes

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On 1/26/2024 5:27 AM, Jacek Lawrynowicz wrote:
From: "Wachowski, Karol" <karol.wachowski@xxxxxxxxx>

Set AW_SNOOP_OVERRIDE bit in VPU_37/40XX_HOST_IF_TCU_PTW_OVERRIDES
to force snooping for MMU write accesses (setting event queue events).

MMU event queue buffer is the only buffer written by MMU and
mapped as write-back which break cache coherency. Force write
transactions to be snooped solving the problem.

Signed-off-by: Wachowski, Karol <karol.wachowski@xxxxxxxxx>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@xxxxxxxxxxxxxxx>

Reviewed-by: Jeffrey Hugo <quic_jhugo@xxxxxxxxxxx>



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